EP2144059A1 - Device for measuring physical and/or chemical magnitudes of water circulating in the treatment circuit of a swimming pool - Google Patents

Device for measuring physical and/or chemical magnitudes of water circulating in the treatment circuit of a swimming pool Download PDF

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Publication number
EP2144059A1
EP2144059A1 EP09163361A EP09163361A EP2144059A1 EP 2144059 A1 EP2144059 A1 EP 2144059A1 EP 09163361 A EP09163361 A EP 09163361A EP 09163361 A EP09163361 A EP 09163361A EP 2144059 A1 EP2144059 A1 EP 2144059A1
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EP
European Patent Office
Prior art keywords
sensor
acquisition unit
sensors
main body
measurement
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Granted
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EP09163361A
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German (de)
French (fr)
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EP2144059B1 (en
Inventor
Jean-Marc Boutet
Omar Saaid
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Klereo
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FIRSTINNOV
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools

Definitions

  • the present invention relates to the technical field of monitoring the water quality of a recreational pool by the regular measurement of physical and / or chemical characteristics of this quality.
  • an international application WO 2007/02530 has proposed an autonomous floating detector, used in a pool management facility, to automatically regulate the physicochemical properties of water, such as temperature, pH, oxygen level.
  • the autonomous floating detector comprises a certain number of sensors which make it possible to measure these parameters and to compare them with thresholds considered as desirable. In the event of crossing these thresholds, the detector transmits this information to a remote system ensuring the start-up of an oxygenation and filtration pump, as well as the distribution of appropriate cleaning products to bring the chemical parameter (s). in ranges of acceptable values.
  • Such a floating device actually makes it possible to measure physical and chemical quantities of the pool water, but has certain disadvantages. Firstly, the floating device encumbers the interior of the basin and disturbs its use. In addition, as part of a family pool in particular, the Floating measuring device is likely to be accidentally damaged by users playing in the pool. Finally, the characteristics measured by the floating device relate only to the surface water of the pool. However, it has become apparent that this information is not representative of the physicochemical state of all the water in the pool.
  • the integration of the wireless communication acquisition unit also facilitates the installation insofar as it avoids having to draw electrical wiring between the measuring device and the central unit using the measurement results.
  • the implementation of wireless communication for example radio or radio and the autonomous power supply, furthermore, to promote the electrical insulation of the sensors with respect to the water of the leisure pool, avoiding any risk of electrical coupling that could for example result from the implementation of an electrical connection line between the acquisition unit and a controller that would otherwise be connected to the ground.
  • no leakage current can flow from the measurement probes to another element integral with the earth or any power supply. No special precautions are then taken when setting up the device according to the invention.
  • the main body of the measuring device will then preferably be made of an electrically insulating material, such as for example a plastic such as polypropylene, polyethylene or PVC.
  • the measuring device therefore forms a ready-to-use complete set which integrates the functions of positioning implantation and sealed immobilization of the sensors, as well as acquisition and electrical supply of the latter.
  • the acquisition unit then ensures the collection of all the measurements of the sensors and then route them to one or more controllers controlling the organs likely to affect, by their operation, the values of the physical or chemical quantities measured by the sensors.
  • the measurements made in this way are, on the other hand, made with certainty in one and the same place, with no different disturbing agent on each. The fact of bringing together several measurements in the same place is all the more important as the different types of measurement are interdependent for the control of the pool.
  • the acquisition unit comprises measurement processing means performed by the sensors and the wireless communication means are adapted at least for transmitting the measurements made by the sensors and / or the result of the measurement. treatment of these measures by the processing means.
  • the device comprises fixing means for a receiving box of the acquisition unit.
  • the fixing means may then be optionally associated with a removable receiving housing of an acquisition unit.
  • the receiving box can also be an integral part of the device and not be removable.
  • the autonomous source of electrical energy of the acquisition unit comprises at least one electric accumulator such as a battery or a rechargeable battery.
  • the autonomous source of electrical energy may also include one or more non-rechargeable batteries also called primary batteries.
  • the acquisition unit is adapted to ensure a intermittent power supply of sensors and communication means.
  • the acquisition unit may for example be adapted to periodically acquire the measurements of each sensor in a period of time between 3 minutes and 10 minutes.
  • the implementation of a dedicated measurement chain and a dedicated supply for the measurement system ensures the quality of the chemical measurements that are generally performed by a sensor that is particularly sensitive to its supply conditions and works with very low current values.
  • the dedicated power supply comprises at least one capacitor charged by the regulator-inverter and the acquisition unit is adapted for, during the acquisition of a measurement from the chemical sensor, switch off the regulator-inverter supply of the dedicated measuring chain so that it is fed only by the capacitor. This feature avoids any risk of disturbance of the measurement by the interference generated by the controller-inverter.
  • the acquisition unit comprises means for connecting an external measurement sensor.
  • This feature is particularly advantageous, when it is necessary to measure a physical or chemical quantity whose optimum measurement location is located at a distance from the main body of the device according to the invention. This is for example the case of the measurement of the pressure in the water treatment circuit which will preferably be performed at a filter thus providing information indicative of the level of fouling of the latter.
  • the device comprises a temperature sensor, a pH sensor, and a sensor of the chlorine or dissolved oxygen level in the water which are adapted to the main body and a pressure sensor which is located away from the main body and connected to the acquisition unit.
  • the device comprises means for fixing electrical cables.
  • the implementation of such means of cable clamping makes it possible to secure the immobilization of these cables in order to avoid any inadvertent traction of the latter that can induce breaks or tearing of the sensors to which they are connected.
  • the figure 1 is a schematic view of a recreational pool, such as an individual pool and its associated water treatment facility.
  • the figure 2 is a schematic elevation of a device for measuring physical and / or chemical quantities according to the invention, implemented as part of the treatment installation illustrated in FIG. figure 1 .
  • the figure 3 is a schematic view of the acquisition unit incorporated in the device as illustrated in FIG. figure 2 .
  • a recreational pool such as a pool P
  • a facility 1 for treating the water of the pool Such an installation 1 generally comprises a technical room 3 inside which is disposed a pumping unit 4 formed of a pump 4 'and a filter 4.
  • the pumping unit 4 may also comprise a multi-way valve. 4 "'interposed between the pump 4' and the filter 4" and a manifold 4 "" located upstream of the pump 4 'opposite the filter 4 "relative thereto.
  • the treatment plant 1 can also comprise different maintenance units also arranged inside the technical room, such as for example a pH control unit, a chemical treatment unit Cm for the distribution of, for example, chlorine or products. oxygenating, a heating unit Ch.
  • the pump 4 'and the various maintenance units are then connected to a control unit or controller 5 which ensures the power supply and the operation according to at least time slots for example .
  • the connection lines 6 between the unit 5 and the different units and / or pump are symbolized by a line in phantom.
  • the unit 5 generally comprises a user interface, not shown, allowing the automatic or manual start-up of the maintenance units, the control of the parameters or, more generally, the control of the treatment installation.
  • the treatment plant finally comprises a set of pipes 7 and a water treatment circuit 8 which connects the pumping unit to different points of the pool at which the water is either withdrawn or reinjected.
  • the flow direction of the water is here symbolized by arrows located near the pipes 7 and 8.
  • the invention proposes to incorporate in the circulation pipes the water to be treated. , a device 10 for measuring physical and / or chemical quantities according to the invention.
  • the device 10 is located downstream of the pumping and filtration unit 4, which makes it possible, on the one hand, to prevent fouling of the device, and, on the other hand, to provide measurements on water resulting from a mixture of water from different pool sampling points both at the surface and at depth. This mixture is thus perfectly representative of the general state of all the water of the pool P.
  • the device 10 comprises a main body 12 crossed by a measuring channel 13 shown in dashed lines.
  • the main body 12 is equipped at its two ends, means 14a, 14b of connection to the circuit 8 of water treatment.
  • the connecting means 14a and 14b can be made in any suitable manner, such as for example by rings to be clamped or sticking rings according to the embodiment of the water treatment circuit 8.
  • each of the rings 14a and 14b may be of a different type.
  • the main body 12 also comprises means 17a, 17b, 17c of implementation of at least two, and according to the illustrated example, three sensors 18a, 18b and 18c.
  • the means for holding and setting up the sensors are for example each constituted by a well extending transversely to the axis ⁇ of the measuring channel 13 and leading into the latter.
  • Each well has a conformation complementary to that of the associated sensor, so that the engagement of the sensor in the well comes to close it.
  • sealing systems such as for example O-rings, silicone-based adhesives and / or PTFE tape, makes it possible to obtain a perfect seal.
  • Each sensor 18a, 18b, 18c comprises an electric cable 19a, 19b, 19c which connects the corresponding sensor to an acquisition unit 20 located inside a housing 21 integral with the main body 12.
  • the housing 21 is adapted to fastening means formed by bases 22 adapted to the body 12.
  • This housing 21 can be sealed.
  • the bases 22 could be integrated in the main body 12, just as the sealed housing 21 could also be integrated with the main body 12, so as to form with the latter a one-piece assembly, except perhaps with regard to a lid 23 closing the sealed housing 21.
  • the main body 12 comprises fastening means 24, electrical cables 18a, 18b, 18c.
  • the fastening means 24 may be made in any appropriate manner, such as for example in the form of notches for receiving cables or riders coming to cover said cables.
  • the three sensors comprise a temperature sensor 18a, a pH measurement sensor 18b and a measurement sensor of the chlorine level 18c, it being understood that this sensor for measuring the chlorine content can be replaced by a sensor measuring the dissolved oxygen level.
  • the measuring device could also include both a sensor for measuring the chlorine content dissolved in the water and a sensor for measuring the dissolved oxygen level.
  • the acquisition unit 20 comprises, as is apparent from the figure 3 , means 30 for processing the measurements made by the sensors 18a to 18c.
  • the processing means may for example be formed by a microcontroller including in particular digital analog conversion means.
  • the sensors for measuring physical quantities, such as temperature, are then connected to the processing means 30 via a protection system 31 having a high impedance.
  • food of the acquisition unit 20 is provided by an autonomous source 32 of electrical energy comprising at least one electric accumulator 33, such as a battery or a battery.
  • the autonomous nature of the power source 32 then ensures perfect electrical insulation of the acquisition unit 20 and the sensors connected thereto relative to the water being measured.
  • the chemical measurement sensors are each associated with a specific measurement chain 34 which comprises, according to the illustrated example, an amplifier-follower Associated with an amplifier-inverter 36 so as to perfectly amplify the very low current values flowing in the sensors.
  • Each measurement chain 34 is then associated with a dedicated power supply 37 comprising a regulator-inverter 38, which makes it possible to supply each of the amplifiers with symmetrical positive and negative voltages from the DC voltage supplied by the source 32.
  • the dedicated power supply 37 also comprises at least one controlled switch 39 controlled by the acquisition means 30 so as to cut the power supply of the reversing regulator 38 during the measurements.
  • the dedicated power supply 37 then comprises capacitors 40 which then deliver the electrical energy necessary for the measurement.
  • the dedicated measurement chain 34 and its dedicated power supply 37, associated with the pH sensor 18b, are represented, it being understood that the unit 20 also comprises the same dedicated measurement chain and its associated dedicated power supply for each of the other sensors of chemical quantities and, here, for the 18c chlorine level sensor.
  • the electronic diagram can be optimized so as to use the maximum of electronic components in common for the measurement chains of the different sensors.
  • the acquisition unit 20 further comprises communication means 45 formed here by a radio communication module adapted to transmit the measurement results to the unit 5 which is then equipped with a suitable receiver .
  • the implementation of such a radio transmitter 45 also contributes to perfect electrical insulation of the sensors and the acquisition unit 20 with respect to the water being measured.
  • the processing means 30 are adapted to ensure an intermittent supply of the measuring means 18a, 18b, 18c, 34, 37 and of the transmission means 45, so that not to transmit the measurements made continuously but periodically according to a period, for example of the order of five minutes.
  • the acquisition unit will be placed in a state of rest. In this state of rest, the radio transmission means and the physical quantity sensors and their associated measurement chains are not powered.
  • the processing means 30 are adapted to ensure an intermittent supply of the measuring means 18a, 18b, 18c, 34, 37 and of the transmission means 45, so that not to transmit the measurements made continuously but periodically according to a period, for example of the order of five minutes.
  • the acquisition unit also comprises means 46 for connecting a sensor, such as for example a pressure sensor 47 located on the filter 4 "away from the device 10.
  • a sensor such as for example a pressure sensor 47 located on the filter 4 "away from the device 10.
  • the device 10 according to the invention thus formed greatly simplifies the installation of all the sensors necessary for almost automatic maintenance of the water quality of the pool P.
  • the acquisition unit 20 is directly integrated in the housing 21, it could also be envisaged to provide it autonomously to be used, either with a device analogous to the device according to the invention or to be integrated in another type of installation for monitoring and maintenance of the water quality of a leisure pool.
  • the device is inserted into the existing water circulation circuit, the measurement channel being an integral part of this circuit. It can also be envisaged that the device is mounted in branch with respect to the existing circuit.

Abstract

The device (10) has a main body (12) traversed by a measuring channel (13), and connecting units (14a, 14b) e.g. glue ring, for connecting the channel and a recreation basin treating circuit. Positioning and maintaining units (17a, 17c) position and maintain sensors on the body in relation with an interior of the channel. Fixation units i.e. flanges (22), fix a case (21) on the body, where the case receives an acquisition unit (20) comprising an autonomous power source with an accumulator e.g. battery.

Description

La présente invention concerne le domaine technique de la surveillance de la qualité de l'eau d'un bassin de loisirs par la mesure régulière de grandeurs physiques et/ou chimiques caractéristiques de cette qualité.The present invention relates to the technical field of monitoring the water quality of a recreational pool by the regular measurement of physical and / or chemical characteristics of this quality.

Afin d'assurer un parfait confort d'utilisation, ainsi qu'une bonne hygiène d'un bassin de loisirs, tel qu'une piscine individuelle ou privative, il est nécessaire de maintenir des grandeurs chimiques, telles que le pH, le taux de chlore ou le taux d'oxygène dissout, ainsi que la température dans des plages de valeurs acceptables. A cet effet, la personne chargée de l'entretien de la piscine, le plus généralement son propriétaire, doit effectuer à intervalles réguliers, des mesures par prélèvement d'échantillons pour vérifier la conformité des concentrations avec des plages de valeurs optimales connues pour garantir la salubrité de l'eau. De telles mesures par prise d'échantillons prennent généralement beaucoup de temps et présentent un caractère fastidieux. II a donc été proposé des systèmes automatiques de mesure et d'ajout de produit chimique permettant d'ajuster les paramètres correspondants.In order to ensure a perfect comfort of use, as well as a good hygiene of a leisure pool, such as an individual or private swimming pool, it is necessary to maintain chemical quantities, such as the pH, the rate of chlorine or dissolved oxygen, and the temperature within acceptable ranges. For this purpose, the person responsible for the maintenance of the swimming pool, usually the owner, must carry out at regular intervals, sampling measurements to check the conformity of the concentrations with known optimum ranges of values to guarantee the safety of the pool. cleanliness of the water. Such sample measurements are generally time consuming and tedious. It has therefore been proposed automatic systems for measuring and adding chemical product to adjust the corresponding parameters.

Ainsi, une demande internationale WO 2007/02530 a proposé un détecteur flottant autonome, utilisé dans une installation de la gestion d'une piscine, permettant de réguler automatiquement les propriétés physicochimiques de l'eau, telles que la température, le pH, le taux d'oxygène. Le détecteur flottant autonome comprend un certain nombre de capteurs qui permettent de mesurer ces paramètres et de les comparer à des seuils considérés comme souhaitables. En cas de franchissement de ces seuils, le détecteur transmet ces informations à un système distant assurant la mise en marche d'une pompe d'oxygénation et de filtration, ainsi que la distribution de produits d'entretien adaptés pour amener le ou les paramètres chimiques dans des plages de valeurs acceptables.Thus, an international application WO 2007/02530 has proposed an autonomous floating detector, used in a pool management facility, to automatically regulate the physicochemical properties of water, such as temperature, pH, oxygen level. The autonomous floating detector comprises a certain number of sensors which make it possible to measure these parameters and to compare them with thresholds considered as desirable. In the event of crossing these thresholds, the detector transmits this information to a remote system ensuring the start-up of an oxygenation and filtration pump, as well as the distribution of appropriate cleaning products to bring the chemical parameter (s). in ranges of acceptable values.

Un tel dispositif flottant permet effectivement de mesurer des grandeurs physiques et chimiques de l'eau de la piscine, mais présente toutefois certains inconvénients. Tout d'abord, le dispositif flottant encombre l'intérieur du bassin et perturbe son usage. De plus, dans le cadre d'une piscine familiale notamment, le dispositif de mesure flottant est susceptible d'être détérioré accidentellement par des utilisateurs jouant dans la piscine. Enfin, les caractéristiques mesurées par le dispositif flottant ne concernent que l'eau de surface de la piscine. Or, il est apparu à l'usage, que ces informations ne sont pas représentatives de l'état physicochimique de l'ensemble de l'eau de la piscine.Such a floating device actually makes it possible to measure physical and chemical quantities of the pool water, but has certain disadvantages. Firstly, the floating device encumbers the interior of the basin and disturbs its use. In addition, as part of a family pool in particular, the Floating measuring device is likely to be accidentally damaged by users playing in the pool. Finally, the characteristics measured by the floating device relate only to the surface water of the pool. However, it has become apparent that this information is not representative of the physicochemical state of all the water in the pool.

Afin de remédier à ces inconvénients, il est également connu des systèmes permettant de disposer des capteurs sur des canalisations de filtration de l'eau de la piscine. De tels systèmes permettent alors un placement individuel de chaque capteur associé à une régulation particulière, tel que par exemple le pH, le taux de chlore, le niveau d'oxygénation ou encore la température. Les dispositifs individuels de placement des capteurs sont alors disposés à proximité de chaque dispositif de régulation associé et il est donc nécessaire de procéder à autant de procédures d'implantation qu'il existe de capteurs. Or, chaque mise en place de capteur induit un temps de pose relativement important, de l'ordre d'une dizaine de minutes lorsque celle-ci implique un perçage individuel d'une canalisation, et crée un risque de fuites au niveau du circuit de traitement de l'eau de la piscine.In order to overcome these drawbacks, it is also known systems for disposing of the sensors on the water filtration pipes of the pool. Such systems then allow individual placement of each sensor associated with a particular regulation, such as for example the pH, the chlorine level, the level of oxygenation or the temperature. The individual devices for placing the sensors are then placed close to each associated control device and it is therefore necessary to carry out as many implantation procedures as there are sensors. However, each installation of sensor induces a relatively long exposure time, of the order of ten minutes when it involves an individual drilling of a pipe, and creates a risk of leaks in the circuit of treatment of the pool water.

Ainsi, il est apparu le besoin d'un dispositif qui permet de réduire le temps de montage des capteurs tout en réduisant également les risques de fuites sur le circuit d'eau.Thus, it appeared the need for a device that reduces the mounting time of the sensors while also reducing the risk of leaks on the water circuit.

Afin d'atteindre cet objectif, l'invention concerne un dispositif pour la mesure de grandeurs physiques et/ou chimiques d'une eau circulant dans un circuit de traitement d'un bassin de loisir, caractérisé en ce qu'il comprend :

  • un corps principal traversé par un canal de mesure,
  • des moyens de raccordement du canal de mesure au circuit de traitement,
  • au moins deux capteurs de mesure adaptés sur le corps principal pour être en relation avec l'intérieur du canal de mesure,
  • une unité d'acquisition raccordée aux capteurs de mesure et comprenant une source autonome d'énergie électrique et des moyens de communication sans fil avec une unité centrale.
In order to achieve this objective, the invention relates to a device for measuring physical and / or chemical quantities of a water circulating in a treatment circuit of a recreational pond, characterized in that it comprises:
  • a main body crossed by a measuring channel,
  • means for connecting the measurement channel to the processing circuit,
  • at least two measuring sensors adapted to the main body to be connected to the inside of the measuring channel,
  • an acquisition unit connected to the measurement sensors and comprising an autonomous source of electrical energy and wireless communication means with a central unit.

La mise en oeuvre d'un tel dispositif permet, d'une part, de réduire le temps d'intervention pour la mise en place des capteurs dans la mesure où il suffit simplement de venir insérer le dispositif selon l'invention en lieu et place d'un tronçon de tuyau, le corps principal du dispositif étant commun pour au moins deux capteurs. De plus, l'étanchéité de la mise en place et du maintien des capteurs est vérifiée en usine, de sorte que le risque de fuites à leur niveau est annulé contrairement à ce qui se passe lors de la mise en oeuvre de bagues individuelles de maintien de capteurs. De plus, la découpe d'un tronçon de tuyauterie est une opération beaucoup plus simple que son perçage. Un autre avantage lié à la solution est l'indépendance du dispositif de mesure vis à vis de la qualité de la tuyauterie existante : en effet, le corps principal peut être réalisé en un matériau résistant dans le temps, permettant au moins au niveau du dispositif de mesure, de conserver sa qualité. Enfin, l'intégration de l'unité d'acquisition à communication sans fils facilite également l'installation dans la mesure où cela évite de devoir tirer un câblage électrique entre le dispositif de mesure et l'unité centrale utilisant les résultats des mesures. La mise en oeuvre de communication sans fils, par exemple, radio ou hertziens et l'alimentation autonome contribue, en outre, à favoriser l'isolation électrique des capteurs par rapport à l'eau du bassin de loisirs en évitant tout risque d'un couplage électrique qui aurait pu par exemple résulter de la mise en oeuvre d'une ligne électrique de raccordement entre l'unité d'acquisition et un automate de commande qui serait par ailleurs raccordé à la terre. Ainsi, quelle que soit la configuration de la piscine, aucun courant de fuite ne peut circuler depuis les sondes de mesure vers un autre élément solidaire de la terre ou d'une quelconque alimentation électrique. Aucune précaution particulière n'est alors à prendre lors de la mise en place du dispositif selon l'invention. Cette parfaite isolation électrique entre les capteurs et l'eau du bassin de loisirs, garantit alors la qualité des mesures, notamment pour ce qui concerne les mesures chimiques, telles que les mesures de pH, d'oxygénation et de taux de chlore dissout. A cet égard, il doit être remarqué que le corps principal du dispositif de mesure sera alors de préférence réalisé dans un matériau électriquement isolant, tel que par exemple une matière plastique comme du polypropylène, du polyéthylène ou encore du PVC.The implementation of such a device makes it possible, on the one hand, to reduce the intervention time for the positioning of the sensors insofar as it suffices to simply insert the device according to the invention in place of of a pipe section, the main body of the device being common for at least two sensors. In addition, the sealing of the establishment and maintenance of the sensors is verified at the factory, so that the risk of leakage at their level is canceled contrary to what happens when implementing individual retention rings. of sensors. In addition, the cutting of a pipe section is a much simpler operation than drilling. Another advantage of the solution is the independence of the measuring device with respect to the quality of the existing piping: in fact, the main body can be made of a material resistant in time, allowing at least at the level of the device measure, to maintain its quality. Finally, the integration of the wireless communication acquisition unit also facilitates the installation insofar as it avoids having to draw electrical wiring between the measuring device and the central unit using the measurement results. The implementation of wireless communication, for example radio or radio and the autonomous power supply, furthermore, to promote the electrical insulation of the sensors with respect to the water of the leisure pool, avoiding any risk of electrical coupling that could for example result from the implementation of an electrical connection line between the acquisition unit and a controller that would otherwise be connected to the ground. Thus, whatever the configuration of the pool, no leakage current can flow from the measurement probes to another element integral with the earth or any power supply. No special precautions are then taken when setting up the device according to the invention. This perfect electrical insulation between the sensors and the water in the leisure pool guarantees the quality of the measurements, particularly with regard to chemical measurements, such as pH, oxygenation and dissolved chlorine levels. In this respect, it should be noted that the main body of the measuring device will then preferably be made of an electrically insulating material, such as for example a plastic such as polypropylene, polyethylene or PVC.

Le dispositif de mesure selon l'invention forme donc un ensemble complet prêt à l'emploi qui intègre les fonctions d'implantation de positionnement et d'immobilisation étanche des capteurs, ainsi que d'acquisition et d'alimentation électrique de ces derniers. L'unité d'acquisition assure alors la collecte de toutes les mesures des capteurs pour ensuite les acheminer vers un ou plusieurs automates commandant les organes susceptibles d'affecter, par leur fonctionnement, les valeurs des grandeurs physiques ou chimiques mesurées par les capteurs. Les mesures réalisées ainsi, sont d'autre part, faites avec certitude en un même lieu, sans agent perturbateur différent sur chacune. Le fait de réunir plusieurs mesures en un même lieu est d'autant plus important que les différents types de mesure sont interdépendants pour le contrôle de la piscine.The measuring device according to the invention therefore forms a ready-to-use complete set which integrates the functions of positioning implantation and sealed immobilization of the sensors, as well as acquisition and electrical supply of the latter. The acquisition unit then ensures the collection of all the measurements of the sensors and then route them to one or more controllers controlling the organs likely to affect, by their operation, the values of the physical or chemical quantities measured by the sensors. The measurements made in this way are, on the other hand, made with certainty in one and the same place, with no different disturbing agent on each. The fact of bringing together several measurements in the same place is all the more important as the different types of measurement are interdependent for the control of the pool.

Selon une caractéristique de l'invention, l'unité d'acquisition comprend des moyens de traitement des mesures effectuées par les capteurs et les moyens de communication sans fil sont adaptés au moins pour transmettre les mesures effectuées par les capteurs et/ou le résultat du traitement de ces mesures par les moyens de traitement.According to a characteristic of the invention, the acquisition unit comprises measurement processing means performed by the sensors and the wireless communication means are adapted at least for transmitting the measurements made by the sensors and / or the result of the measurement. treatment of these measures by the processing means.

Selon une autre caractéristique de l'invention, le dispositif comprend des moyens de fixation pour un boîtier de réception de l'unité d'acquisition. Les moyens de fixation peuvent alors être éventuellement associés à un boîtier amovible de réception d'une unité d'acquisition. Bien entendu, le boîtier de réception peut également faire partie intégrante du dispositif et ne pas être amovible.According to another characteristic of the invention, the device comprises fixing means for a receiving box of the acquisition unit. The fixing means may then be optionally associated with a removable receiving housing of an acquisition unit. Of course, the receiving box can also be an integral part of the device and not be removable.

Selon une caractéristique de cette forme de réalisation de l'invention, la source autonome d'énergie électrique de l'unité d'acquisition comprend au moins un accumulateur électrique tel qu'une batterie ou une pile rechargeable. Bien entendu, la source autonome d'énergie électrique peut également comprendre une ou plusieurs piles non rechargeables également appelées piles primaires.According to a characteristic of this embodiment of the invention, the autonomous source of electrical energy of the acquisition unit comprises at least one electric accumulator such as a battery or a rechargeable battery. Of course, the autonomous source of electrical energy may also include one or more non-rechargeable batteries also called primary batteries.

Selon une autre caractéristique de l'invention visant à réduire le niveau de consommation électrique de l'unité d'acquisition et donc à d'augmenter la longévité de la source autonome d'énergie, l'unité d'acquisition est adaptée pour assurer une alimentation intermittente des capteurs et des moyens de communications.According to another characteristic of the invention aimed at reducing the power consumption level of the acquisition unit and therefore at increasing the longevity of the autonomous source of energy, the acquisition unit is adapted to ensure a intermittent power supply of sensors and communication means.

Dans le même sens, l'unité d'acquisition pourra par exemple être adaptée pour acquérir périodiquement les mesures de chaque capteur selon une période d'une durée comprise entre 3 min et 10 min.In the same sense, the acquisition unit may for example be adapted to periodically acquire the measurements of each sensor in a period of time between 3 minutes and 10 minutes.

Selon une autre caractéristique de l'invention, le dispositif comprend :

  • au moins un capteur d'une grandeur chimique de l'eau choisie parmi : le PH, le taux de chlore dissous, le taux d'oxygène dissous,
  • une chaîne de mesure dédiée au capteur chimique,
  • une alimentation dédiée de la chaîne de mesure dédiée comprenant un régulateur-inverseur.
According to another characteristic of the invention, the device comprises:
  • at least one sensor of a chemical quantity of water chosen from: the pH, the dissolved chlorine level, the dissolved oxygen level,
  • a measurement chain dedicated to the chemical sensor,
  • a dedicated supply of the dedicated measuring chain comprising a regulator-inverter.

La mise en oeuvre d'une chaîne de mesure dédiée ainsi que d'une alimentation dédiée à la chaîne de mesure permet d'assurer la qualité des mesures chimiques qui sont généralement effectuées par un capteur particulièrement sensible à ses conditions d'alimentation et travaillant avec de très faibles valeurs de courant.The implementation of a dedicated measurement chain and a dedicated supply for the measurement system ensures the quality of the chemical measurements that are generally performed by a sensor that is particularly sensitive to its supply conditions and works with very low current values.

Selon une autre caractéristique visant à assurer une excellente qualité des mesures du capteur chimique, l'alimentation dédiée comprend au moins un condensateur chargé par le régulateur-inverseur et l'unité d'acquisition est adaptée pour, pendant l'acquisition d'une mesure du capteur chimique, couper l'alimentation du régulateur-inverseur de la chaîne de mesure dédiée de sorte qu'elle est alimentée uniquement par le condensateur. Cette caractéristique évite tout risque de perturbation de la mesure par les interférences engendrées par le régulateur-inverseur.According to another characteristic aimed at ensuring excellent quality of the measurements of the chemical sensor, the dedicated power supply comprises at least one capacitor charged by the regulator-inverter and the acquisition unit is adapted for, during the acquisition of a measurement from the chemical sensor, switch off the regulator-inverter supply of the dedicated measuring chain so that it is fed only by the capacitor. This feature avoids any risk of disturbance of the measurement by the interference generated by the controller-inverter.

Selon encore une autre caractéristique de l'invention, l'unité d'acquisition comprend des moyens de raccordement d'un capteur de mesure extérieur. Cette caractéristique est particulièrement avantageuse, lorsqu'il est nécessaire de mesurer une grandeur physique ou chimique dont le lieu de mesure optimale est situé à distance du corps principal du dispositif selon l'invention. Tel est par exemple le cas de la mesure de la pression dans le circuit de traitement de l'eau qui sera de préférence effectuée au niveau d'un filtre permettant ainsi de délivrer une information indicative du niveau d'encrassement de ce dernier.According to yet another characteristic of the invention, the acquisition unit comprises means for connecting an external measurement sensor. This feature is particularly advantageous, when it is necessary to measure a physical or chemical quantity whose optimum measurement location is located at a distance from the main body of the device according to the invention. This is for example the case of the measurement of the pressure in the water treatment circuit which will preferably be performed at a filter thus providing information indicative of the level of fouling of the latter.

Selon une caractéristique de l'invention, le dispositif comprend un capteur de température, un capteur de pH, et un capteur du taux de chlore ou d'oxygène dissous dans l'eau qui sont adaptés sur le corps principal et un capteur de pression qui est situé à distance du corps principal et raccordé à l'unité d'acquisition.According to one characteristic of the invention, the device comprises a temperature sensor, a pH sensor, and a sensor of the chlorine or dissolved oxygen level in the water which are adapted to the main body and a pressure sensor which is located away from the main body and connected to the acquisition unit.

Selon une caractéristique de l'invention, le dispositif comprend des moyens de fixation de câbles électriques. La mise en oeuvre de tels moyens de fixation de câbles permet de sécuriser l'immobilisation de ces câbles afin d'éviter toute traction intempestive de ces derniers pouvant induire des ruptures ou un arrachage des capteurs auxquels ils sont reliés.According to one characteristic of the invention, the device comprises means for fixing electrical cables. The implementation of such means of cable clamping makes it possible to secure the immobilization of these cables in order to avoid any inadvertent traction of the latter that can induce breaks or tearing of the sensors to which they are connected.

Bien entendu les différentes caractéristiques formes et variantes de réalisation de l'invention peuvent être associées les unes avec les autres selon diverses combinaisons, dans la mesure où les caractéristiques variantes et formes de réalisation ne sont pas incompatibles ou exclusives les unes des autres.Of course, the various features and embodiments of the invention may be associated with each other in various combinations, in so far as the variant features and embodiments are not incompatible or exclusive of each other.

Par ailleurs, diverses autres caractéristiques de l'invention ressortent de la description ci-dessous effectuée en référence aux dessins annexés qui illustrent une forme de réalisation non limitative de l'objet de l'invention.Furthermore, various other features of the invention will emerge from the description below made with reference to the accompanying drawings which illustrate a non-limiting embodiment of the subject of the invention.

La figure 1 est une vue schématique d'un bassin de loisirs, tel qu'une piscine individuelle et de son installation de traitement de l'eau associée.The figure 1 is a schematic view of a recreational pool, such as an individual pool and its associated water treatment facility.

La figure 2 est une élévation schématique d'un dispositif pour la mesure de grandeurs physiques et/ou chimiques selon l'invention, mis en oeuvre dans le cadre de l'installation de traitement illustrée à la figure 1.The figure 2 is a schematic elevation of a device for measuring physical and / or chemical quantities according to the invention, implemented as part of the treatment installation illustrated in FIG. figure 1 .

La figure 3 est une vue schématique de l'unité d'acquisition incorporée dans le dispositif tel qu'illustré à la figure 2.The figure 3 is a schematic view of the acquisition unit incorporated in the device as illustrated in FIG. figure 2 .

Comme le montre la figure 1, un bassin de loisirs, tel qu'une piscine P, est généralement associé à une installation 1 de traitement de l'eau de la piscine. Une telle installation 1 comprend généralement un local technique 3 à l'intérieur duquel est disposée une unité de pompage 4 formée d'une pompe 4' et d'un filtre 4". L'unité de pompage 4 peut également comprendre une vanne multi voies 4"' interposée entre la pompe 4' et le filtre 4", ainsi qu'un manifold 4""de raccordement situé en amont de la pompe 4' à l'opposé du filtre 4" par rapport à cette dernière. L'installation de traitement 1 peut également comprendre différentes unités d'entretien également disposées à l'intérieur du local technique, comme par exemple une unité de régulation du pH, une unité de traitement chimique Cm pour la distribution par exemple de chlore ou de produits oxygénants, une unité de chauffage Ch. La pompe 4' et les différentes unités d'entretien sont alors raccordées à une unité ou un automate de contrôle 5 qui en assure l'alimentation électrique ainsi que le fonctionnement selon au moins des plages horaires par exemple. Les lignes 6 de raccordement entre l'unité 5 et les différentes unités et/ou pompe sont symbolisées par une ligne en traits mixtes. Il est à noter que l'unité 5 comprend généralement une interface utilisateur, non représentée permettant la mise en route automatique ou manuelle des unités d'entretien, le contrôle des paramètres ou de façon plus générale, le contrôle de l'installation de traitement. L'installation de traitement comprend enfin un ensemble de tuyauteries 7 et un circuit de traitement de l'eau 8 qui relie l'unité de pompage à différents points de la piscine au niveau desquels l'eau est, soit prélevée, soit réinjectée. Le sens de circulation de l'eau est ici symbolisé par des flèches situées à proximité des tuyauteries 7 et 8.As shown in figure 1 a recreational pool, such as a pool P, is generally associated with a facility 1 for treating the water of the pool. Such an installation 1 generally comprises a technical room 3 inside which is disposed a pumping unit 4 formed of a pump 4 'and a filter 4. The pumping unit 4 may also comprise a multi-way valve. 4 "'interposed between the pump 4' and the filter 4" and a manifold 4 "" located upstream of the pump 4 'opposite the filter 4 "relative thereto. The treatment plant 1 can also comprise different maintenance units also arranged inside the technical room, such as for example a pH control unit, a chemical treatment unit Cm for the distribution of, for example, chlorine or products. oxygenating, a heating unit Ch. The pump 4 'and the various maintenance units are then connected to a control unit or controller 5 which ensures the power supply and the operation according to at least time slots for example . The connection lines 6 between the unit 5 and the different units and / or pump are symbolized by a line in phantom. It should be noted that the unit 5 generally comprises a user interface, not shown, allowing the automatic or manual start-up of the maintenance units, the control of the parameters or, more generally, the control of the treatment installation. The treatment plant finally comprises a set of pipes 7 and a water treatment circuit 8 which connects the pumping unit to different points of the pool at which the water is either withdrawn or reinjected. The flow direction of the water is here symbolized by arrows located near the pipes 7 and 8.

Afin d'assurer la mesure des paramètres physiques et/ou chimiques de l'eau à traiter de manière à piloter le fonctionnement des équipements de traitement et de régulation, l'invention propose d'incorporer aux canalisations de circulation de l'eau à traiter, un dispositif 10 pour la mesure de grandeurs physiques et/ou chimiques conforme à l'invention. Selon l'exemple illustré, le dispositif 10 est situé en aval de l'unité de pompage et de filtration 4, ce qui permet, d'une part, d'éviter un encrassement du dispositif, et, d'autre part, d'assurer les mesures sur de l'eau résultant d'un mélange d'eau en provenance de différents points de prélèvements de la piscine à la fois en surface et en profondeur. Ce mélange est ainsi parfaitement représentatif de l'état général de l'ensemble de l'eau de la piscine P.In order to ensure the measurement of the physical and / or chemical parameters of the water to be treated so as to control the operation of the treatment and regulation equipment, the invention proposes to incorporate in the circulation pipes the water to be treated. , a device 10 for measuring physical and / or chemical quantities according to the invention. According to the illustrated example, the device 10 is located downstream of the pumping and filtration unit 4, which makes it possible, on the one hand, to prevent fouling of the device, and, on the other hand, to provide measurements on water resulting from a mixture of water from different pool sampling points both at the surface and at depth. This mixture is thus perfectly representative of the general state of all the water of the pool P.

Comme le montre la figure 2, le dispositif 10 comprend un corps principal 12 traversé par un canal de mesure 13 illustré en pointillés. Le corps principal 12 est équipé au niveau de ses deux extrémités, de moyens 14a, 14b de raccordement au circuit 8 de traitement de l'eau. Les moyens de raccordement 14a et 14b peuvent être réalisés de toutes façons appropriées, telles que par exemple par des bagues à serrer ou encore des bagues à coller selon le mode de réalisation du circuit de traitement de l'eau 8. Bien entendu, chacune des bagues 14a et 14b peut être d'un type différent. Conformément à une caractéristique essentielle de l'invention, le corps principal 12 comprend également des moyens 17a, 17b, 17c de mise en place d'au moins deux, et selon l'exemple illustré, de trois capteurs 18a, 18b et 18c. Les moyens de maintien et de mise en place des capteurs sont par exemple constitués chacun par un puits s'étendant transversalement à l'axe Δ du canal de mesure 13 et débouchant dans ce dernier. Chaque puits présente une conformation complémentaire à celle du capteur associé, de sorte que l'engagement du capteur dans le puits vient l'obturer. L'utilisation de systèmes d'étanchéité, tels que par exemple des joints toriques, des colles à base de silicone et/ou un ruban PTFE, permet alors obtenir une parfaite étanchéité.As shown in figure 2 , the device 10 comprises a main body 12 crossed by a measuring channel 13 shown in dashed lines. The main body 12 is equipped at its two ends, means 14a, 14b of connection to the circuit 8 of water treatment. The connecting means 14a and 14b can be made in any suitable manner, such as for example by rings to be clamped or sticking rings according to the embodiment of the water treatment circuit 8. Of course, each of the rings 14a and 14b may be of a different type. According to an essential characteristic of the invention, the main body 12 also comprises means 17a, 17b, 17c of implementation of at least two, and according to the illustrated example, three sensors 18a, 18b and 18c. The means for holding and setting up the sensors are for example each constituted by a well extending transversely to the axis Δ of the measuring channel 13 and leading into the latter. Each well has a conformation complementary to that of the associated sensor, so that the engagement of the sensor in the well comes to close it. The use of sealing systems, such as for example O-rings, silicone-based adhesives and / or PTFE tape, makes it possible to obtain a perfect seal.

Chaque capteur 18a, 18b, 18c comprend un câble électrique 19a, 19b, 19c qui relie le capteur correspondant à une unité d'acquisition 20 située à l'intérieur d'un boîtier 21 solidaire du corps principal 12. Selon l'exemple illustré, le boîtier 21 est adapté sur des moyens de fixation formés par des embases 22 adaptées sur le corps 12. Ce boîtier 21 peut être étanche. Bien entendu, les embases 22 pourraient être intégrées au corps principal 12, de même que le boîtier étanche 21 pourrait également être intégré au corps principal 12, de manière à former avec ce dernier un ensemble monobloc, sauf peut être en ce qui concerne un couvercle 23 fermant le boîtier étanche 21.Each sensor 18a, 18b, 18c comprises an electric cable 19a, 19b, 19c which connects the corresponding sensor to an acquisition unit 20 located inside a housing 21 integral with the main body 12. According to the illustrated example, the housing 21 is adapted to fastening means formed by bases 22 adapted to the body 12. This housing 21 can be sealed. Of course, the bases 22 could be integrated in the main body 12, just as the sealed housing 21 could also be integrated with the main body 12, so as to form with the latter a one-piece assembly, except perhaps with regard to a lid 23 closing the sealed housing 21.

Il est à noter que selon l'exemple illustré, le corps principal 12 comprend des moyens de fixation 24, des câbles électriques 18a, 18b, 18c. Les moyens de fixation 24 peuvent être réalisés de toute manière appropriée, telle que par exemple sous la forme d'encoches de réception des câbles ou encore de cavaliers venant recouvrir lesdits câbles.It should be noted that according to the illustrated example, the main body 12 comprises fastening means 24, electrical cables 18a, 18b, 18c. The fastening means 24 may be made in any appropriate manner, such as for example in the form of notches for receiving cables or riders coming to cover said cables.

Selon l'exemple illustré, les trois capteurs comprennent un capteur de température 18a, un capteur de mesure du pH 18b et un capteur de mesure du taux de chlore 18c étant entendu que ce capteur de mesure du taux de chlore peut être remplacé par un capteur de mesure du taux d'oxygène dissout. Le dispositif de mesure pourrait également comprendre à la fois un capteur de mesure du taux de chlore dissout dans l'eau et un capteur de mesure du taux d'oxygène dissout.According to the illustrated example, the three sensors comprise a temperature sensor 18a, a pH measurement sensor 18b and a measurement sensor of the chlorine level 18c, it being understood that this sensor for measuring the chlorine content can be replaced by a sensor measuring the dissolved oxygen level. The measuring device could also include both a sensor for measuring the chlorine content dissolved in the water and a sensor for measuring the dissolved oxygen level.

L'unité d'acquisition 20 comprend, comme cela ressort de la figure 3, des moyens 30 de traitement des mesures effectuées par les capteurs 18a à 18c. Les moyens de traitement peuvent par exemple être formés par un microcontrôleur intégrant notamment des moyens de conversion analogiques numériques. Les capteurs de mesure de grandeurs physiques, tels que la température, sont alors raccordés au moyen de traitement 30 par l'intermédiaire d'un système de protection 31 présentant une grande impédance. L'alimentation de l'unité d'acquisition 20 est assurée par une source autonome 32 d'énergie électrique comprenant au moins un accumulateur électrique 33, tel qu'une pile ou une batterie. Le caractère autonome de la source d'alimentation 32 garantit alors une parfaite isolation électrique de l'unité d'acquisition 20 et des capteurs qui y sont reliés par rapport à l'eau faisant l'objet des mesures. Contrairement aux capteurs de mesures physiques, les capteurs de mesures chimiques, tels que les capteurs de pH 18b et le capteur de concentration de chlore 18c, sont chacun associés à une chaîne de mesures spécifique 34 qui comprend selon l'exemple illustré un amplificateur-suiveur 35 associé à un amplificateur-inverseur 36 de manière à parfaitement amplifier les très faibles valeurs de courant circulant dans les capteurs. Chaque chaîne de mesures 34 est alors associée à une alimentation dédiée 37 comprenant un régulateur-inverseur 38, ce qui permet d'alimenter chacun des amplificateurs avec des tensions positives et négatives symétriques à partir de la tension continue fournie par la source 32. Selon une caractéristique avantageuse de l'invention, dans la mesure où le régulateur-inverseur 38 est une source de perturbations électriques des mesures, l'alimentation dédiée 37 comprend également au moins un interrupteur commandé 39 piloté par les moyens d'acquisition 30 de manière à couper l'alimentation du régulateur-inverseur 38 pendant les mesures. L'alimentation dédiée 37 comprend alors des condensateurs 40 qui délivrent alors l'énergie électrique nécessaire à la mesure.The acquisition unit 20 comprises, as is apparent from the figure 3 , means 30 for processing the measurements made by the sensors 18a to 18c. The processing means may for example be formed by a microcontroller including in particular digital analog conversion means. The sensors for measuring physical quantities, such as temperature, are then connected to the processing means 30 via a protection system 31 having a high impedance. food of the acquisition unit 20 is provided by an autonomous source 32 of electrical energy comprising at least one electric accumulator 33, such as a battery or a battery. The autonomous nature of the power source 32 then ensures perfect electrical insulation of the acquisition unit 20 and the sensors connected thereto relative to the water being measured. In contrast to the physical measurement sensors, the chemical measurement sensors, such as the pH sensors 18b and the chlorine concentration sensor 18c, are each associated with a specific measurement chain 34 which comprises, according to the illustrated example, an amplifier-follower Associated with an amplifier-inverter 36 so as to perfectly amplify the very low current values flowing in the sensors. Each measurement chain 34 is then associated with a dedicated power supply 37 comprising a regulator-inverter 38, which makes it possible to supply each of the amplifiers with symmetrical positive and negative voltages from the DC voltage supplied by the source 32. According to a advantageous characteristic of the invention, insofar as the regulator-inverter 38 is a source of electrical disturbances measurements, the dedicated power supply 37 also comprises at least one controlled switch 39 controlled by the acquisition means 30 so as to cut the power supply of the reversing regulator 38 during the measurements. The dedicated power supply 37 then comprises capacitors 40 which then deliver the electrical energy necessary for the measurement.

Il doit être remarqué que sur la figure 3, seule la chaîne de mesures dédiée 34 et son alimentation dédiée 37, associée au capteur de pH 18b, sont représentées, étant entendu que l'unité 20 comprend également une même chaîne de mesures dédiée et son alimentation dédiée associée pour chacun des autres capteurs de grandeurs chimiques et, ici, pour le capteur de taux de chlore 18c. Alternativement, le schéma électronique peut être optimisé de sorte à utiliser le maximum de composants électroniques en commun pour les chaînes de mesures des différents capteurs.It must be noticed that on the figure 3 , only the dedicated measurement chain 34 and its dedicated power supply 37, associated with the pH sensor 18b, are represented, it being understood that the unit 20 also comprises the same dedicated measurement chain and its associated dedicated power supply for each of the other sensors of chemical quantities and, here, for the 18c chlorine level sensor. Alternatively, the electronic diagram can be optimized so as to use the maximum of electronic components in common for the measurement chains of the different sensors.

Selon l'exemple illustré, l'unité d'acquisition 20 comprend en outre des moyens de communication 45 formés ici par un module de communication radio adapté pour transmettre les résultats des mesures à l'unité 5 qui est alors équipée d'un récepteur adapté. La mise en oeuvre d'un tel émetteur radio 45 contribue également à une parfaite isolation électrique des capteurs et de l'unité d'acquisition 20 par rapport à l'eau faisant l'objet de mesures.According to the illustrated example, the acquisition unit 20 further comprises communication means 45 formed here by a radio communication module adapted to transmit the measurement results to the unit 5 which is then equipped with a suitable receiver . The implementation of such a radio transmitter 45 also contributes to perfect electrical insulation of the sensors and the acquisition unit 20 with respect to the water being measured.

Afin de garantir une longévité suffisante de la source d'énergie autonome 30, les moyens de traitement 30 sont adaptés pour assurer une alimentation intermittente des moyens de mesure 18a, 18b, 18c, 34, 37 et des moyens d'émission 45, de manière à ne pas transmettre les mesures effectuées de façon continue mais de manière périodique selon une période, par exemple de l'ordre de cinq minutes. Ainsi, entre deux séquences d'acquisition et de transmission des mesures, l'unité d'acquisition sera placée dans un état de repos. Dans cet état de repos, les moyens de transmission radio et les capteurs de grandeurs physiques et leurs chaînes de mesures associées ne sont pas alimentés. En revanche, afin d'assurer de la qualité de la mesure des grandeurs chimiques au moment de l'acquisition proprement dite, il convient de maintenir une certaine stabilité dans le temps, de l'alimentation des capteurs de mesures chimiques A cet effet, il pourra être envisagé une alimentation hachée des capteurs de mesures chimiques et ainsi que de leurs chaînes de mesures associées pendant la période dite de repos. Ce hachage pourra par exemple faire intervenir une mise sous tension de quelques millisecondes, par exemple 10ms, à des intervalles de quelques secondes par exemple 20s.In order to guarantee a sufficient longevity of the autonomous energy source 30, the processing means 30 are adapted to ensure an intermittent supply of the measuring means 18a, 18b, 18c, 34, 37 and of the transmission means 45, so that not to transmit the measurements made continuously but periodically according to a period, for example of the order of five minutes. Thus, between two sequences of acquisition and transmission of measurements, the acquisition unit will be placed in a state of rest. In this state of rest, the radio transmission means and the physical quantity sensors and their associated measurement chains are not powered. On the other hand, in order to ensure the quality of the measurement of the chemical quantities at the time of the actual acquisition, it is necessary to maintain a certain stability over time, from the supply of the sensors of chemical measurements. may be considered a chopped supply of sensors for chemical measurements and their associated chains of measurements during the so-called rest period. This hash may for example involve powering up a few milliseconds, for example 10ms, at intervals of a few seconds for example 20s.

Selon l'exemple illustré, l'unité d'acquisition comprend également des moyens 46 de raccordement d'un capteur, tel que par exemple un capteur de pression 47 situé sur le filtre 4" à distance du dispositif 10.According to the illustrated example, the acquisition unit also comprises means 46 for connecting a sensor, such as for example a pressure sensor 47 located on the filter 4 "away from the device 10.

Le dispositif 10 selon l'invention ainsi constitué permet de simplifier grandement la mise en place de l'ensemble des capteurs nécessaires à un entretien quasi automatique de la qualité de l'eau de la piscine P.The device 10 according to the invention thus formed greatly simplifies the installation of all the sensors necessary for almost automatic maintenance of the water quality of the pool P.

Par ailleurs, il doit être noté que si selon l'exemple décrit précédemment, l'unité d'acquisition 20 est directement intégrée dans le boîtier 21, il pourrait également être envisagé de la fournir de manière autonome pour être utilisée, soit avec un dispositif analogue au dispositif selon l'invention ou encore pour être intégrée dans un autre type d'installation de surveillance et d'entretien de la qualité de l'eau d'un bassin de loisirs.Furthermore, it should be noted that if according to the example described above, the acquisition unit 20 is directly integrated in the housing 21, it could also be envisaged to provide it autonomously to be used, either with a device analogous to the device according to the invention or to be integrated in another type of installation for monitoring and maintenance of the water quality of a leisure pool.

Selon l'exemple illustré, le dispositif vient s'insérer dans le circuit de circulation d'eau existant, le canal de mesure faisant partie intégrante de ce circuit. Il peut également être envisagé que le dispositif est monté en dérivation vis à vis du circuit existant.According to the illustrated example, the device is inserted into the existing water circulation circuit, the measurement channel being an integral part of this circuit. It can also be envisaged that the device is mounted in branch with respect to the existing circuit.

Bien entendu, diverses autres modifications peuvent être apportées à l'invention dans le cadre des revendications.Of course, various other modifications may be made to the invention within the scope of the claims.

Claims (11)

Dispositif (10) pour la mesure de grandeurs physiques et/ou chimiques d'une eau circulant dans un circuit (8) de traitement d'un bassin de loisir (P) caractérisé en ce qu'il comprend : - un corps principal (12) traversé par un canal de mesure (13), - des moyens (14a, 14b) de raccordement du canal de mesure (13) au circuit de traitement (8), - au moins deux capteurs de mesure (18a, 18b) adaptés sur le corps principal pour être en relation avec l'intérieur du canal de mesure (13), - une unité d'acquisition (20) raccordée aux capteurs de mesure et comprenant une source autonome (32) d'énergie électrique et des moyens de communication sans fil (45) avec une unité centrale (5). Device (10) for measuring physical and / or chemical quantities of water circulating in a circuit (8) for treating a recreational pond (P), characterized in that it comprises: a main body (12) traversed by a measuring channel (13), means (14a, 14b) for connecting the measuring channel (13) to the processing circuit (8), at least two measuring sensors (18a, 18b) adapted to the main body to be connected to the interior of the measuring channel (13), - An acquisition unit (20) connected to the measurement sensors and comprising an autonomous source (32) of electrical energy and wireless communication means (45) with a central unit (5). Dispositif selon la revendication 1, caractérisé en ce que l'unité d'acquisition comprend des moyens (30) de traitement des mesures effectuées par les capteurs et en ce que les moyens de communication sans fil (45) sont adaptés au moins pour transmettre les mesures effectuées par les capteurs et/ou le résultat du traitement de ces mesures par les moyens de traitement.Device according to Claim 1, characterized in that the acquisition unit comprises means (30) for processing the measurements made by the sensors and in that the wireless communication means (45) are adapted at least to transmit the measurements made by the sensors and / or the result of the treatment of these measurements by the processing means. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'unité d'acquisition (20) est disposée à l'intérieur du boîtier de réception (21) solidaire du corps principal.Device according to one of the preceding claims, characterized in that the acquisition unit (20) is arranged inside the receiving housing (21) integral with the main body. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la source autonome d'énergie électrique (32) comprend au moins un accumulateur électrique (33).Device according to one of the preceding claims, characterized in that the autonomous source of electrical energy (32) comprises at least one electric accumulator (33). Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'unité d'acquisition (20) est adaptée pour assurer une alimentation intermittente des capteurs (18a, 18b) et des moyens de communications (45).Device according to one of the preceding claims, characterized in that the acquisition unit (20) is adapted to provide an intermittent supply of the sensors (18a, 18b) and the communication means (45). Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'unité d'acquisition (20) est adaptée pour acquérir périodiquement les mesures de chaque capteur selon une période d'une durée comprise entre 3 min et 10 min.Device according to one of the preceding claims, characterized in that the acquisition unit (20) is adapted to periodically acquire the measurements of each sensor in a period of time between 3 min and 10 min. Dispositif selon l'une des revendications précédentes, caractérisé en ce que qu'il comprend : - au moins un capteur d'une grandeur chimique de l'eau choisie parmi : le PH, le taux de chlore dissous, le taux d'oxygène dissous, - une chaîne (34) de mesure dédiée au capteur chimique, - une alimentation dédiée (37) de la chaîne de mesure dédiée (34) comprenant un régulateur-inverseur (38). Device according to one of the preceding claims, characterized in that it comprises: at least one sensor of a chemical quantity of water chosen from: pH, dissolved chlorine level, dissolved oxygen level, a measurement chain (34) dedicated to the chemical sensor, - a dedicated power supply (37) of the dedicated measurement chain (34) comprising a regulator-inverter (38). Dispositif selon la revendication précédente, caractérisé en ce que l'alimentation dédiée (37) comprend au moins un condensateur (40) chargé par le régulateur-inverseur (38) et en ce que l'unité d'acquisition est adaptée pour, pendant l'acquisition d'une mesure du capteur chimique, couper l'alimentation du régulateur-inverseur (38) de sorte que la chaîne de mesure dédiée (37) est alimentée uniquement par le condensateur.Device according to the preceding claim, characterized in that the dedicated power supply (37) comprises at least one capacitor (40) charged by the reversing regulator (38) and in that the acquisition unit is adapted to, during acquiring a measurement of the chemical sensor, disconnecting the power supply of the inverter-regulator (38) so that the dedicated measurement chain (37) is powered solely by the capacitor. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'unité d'acquisition comprend des moyens (46) de raccordement d'un capteur de mesure extérieur (47).Device according to one of the preceding claims, characterized in that the acquisition unit comprises means (46) for connecting an external measurement sensor (47). Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comprend un capteur de température (18a), un capteur de pH (18b), et un capteur (18c) du taux de chlore ou d'oxygène dissous dans l'eau qui sont adaptés sur le corps principal (12) et un capteur de pression (47) qui est situé à distance du corps principal (12) et raccordé à l'unité d'acquisition (20).Device according to one of the preceding claims, characterized in that it comprises a temperature sensor (18a), a pH sensor (18b), and a sensor (18c) of the chlorine or dissolved oxygen level in the water which are fitted on the main body (12) and a pressure sensor (47) which is located away from the main body (12) and connected to the acquisition unit (20). Dispositif selon l'une des revendications précédentes, caractérisé en ce que le corps principal(12) comprend des moyens (17a, 17b) de mise en place et de maintien des capteurs, comprennent pour chaque capteur un puits s'étendant transversalement à l'axe du canal de mesure et débouchant dans ce dernier.Device according to one of the preceding claims, characterized in that the main body (12) comprises means (17a, 17b) for positioning and holding the sensors, comprising for each sensor a well extending transversely to the axis of the measuring channel and opening into the latter.
EP09163361A 2008-06-23 2009-06-22 Device for measuring physical and/or chemical magnitudes of water circulating in the treatment circuit of a swimming pool Active EP2144059B1 (en)

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FR0854120A FR2932884B1 (en) 2008-06-23 2008-06-23 DEVICE FOR MEASURING PHYSICAL AND / OR CHEMICAL SIZES OF WATER WATER CIRCULATING IN A TREATMENT CIRCUIT OF A RECREATION BASIN.

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EP2144059A1 true EP2144059A1 (en) 2010-01-13
EP2144059B1 EP2144059B1 (en) 2011-08-17

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EP (1) EP2144059B1 (en)
AT (1) ATE520978T1 (en)
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ES2379809T3 (en) 2012-05-03
FR2932884A1 (en) 2009-12-25
FR2932884B1 (en) 2010-08-27
EP2144059B1 (en) 2011-08-17
US20100000300A1 (en) 2010-01-07
US8281647B2 (en) 2012-10-09
ATE520978T1 (en) 2011-09-15

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