DE19638798A1 - Traffic data acquisition method especially for vehicle - Google Patents

Abstract

The method involves evaluating operation parameters of a mobile radio network. The parameters include information of operating sequences and conditions in the network. Traffic conditions are determined in at least a part of the road system which is covered by the mobile radio network using specific algorithms. Preferably, types of operation outlines are formed which represent characteristic traffic conditions and which are recorded as reference outlines with further parameters which characterise the traffic condition. Current determined operation parameters and current determined parameters characterising the traffic condition are set in relation to the reference outlines. If variations in the reference outline are detected, the road sections with incidents are identified using specific algorithms.

Description

The invention relates to a method for running Collection of traffic data from vehicles in which a existing mobile network is also used.

There are procedures for collecting traffic data from Vehicles known to be stationary Use detection sensors.

The disadvantage of this method is that a high construction effort must be driven to the appropriate installations along the traffic routes erect. This would not make one without them these days further tolerated accumulation of disturbing Buildings become necessary.

Furthermore, the first approaches to mobile Traffic data acquisition by means of complex on-board facilities, for example under Using digital maps, published. The disadvantage of this approach is that both facilities for determining traffic data as well Facilities for the continuous transmission of data in the Vehicle must be present and that the cost a widespread application for such systems restrict.  

The object of the invention is to provide a method which is not a stationary sensor system along the Traffic routes needed, and which one for the Mobile communication existing cellular network for acquisition shared traffic data from vehicles.

The object is achieved by the features of patent claim 1 solved.

An advantage of the invention is that in installed in the vehicle or carried in Mobile communication terminals do not need to be tampered with. In addition, none is used to carry out the method Position determination device (e.g. GPS device) needed. This can reduce the cost of implementation keep the inventive method low.

Another advantage of the method according to the invention is that to carry out the procedure no additional activation and no detection the end devices becomes necessary and thus data protection law Concerns and problems can be avoided.

The following is an example of the implementation of the Invention described.

Moving a vehicle with a mobile communication terminal yourself on a street. The terminal is switched on.

Then, when leaving a cell, the Cellular network and move to the next cell  Signaling exchange between the terminal and Cellular network.

This signaling data runs in normal operation on the network side. For the purpose of further use for Traffic data collection are now selected Operating data together with various other data e.g. B. about time of day, date, weather information (Temperature, wind, precipitation, etc.) events affecting road traffic (trade fairs, sports and cultural events etc.) recorded.

From the various cellular network data in connection with time information then operational profiles created and recorded. Here are u. a. Daily profiles, Weekly profiles, annual profiles or even profiles with still other periodicities conceivable.

Along with the recorded information about Events, weather and other relevant information will be Reference profiles created.

So it is in the traffic data acquisition on the Utilization of one or more cells and / or elements relevant data of a mobile network is read out in order to To obtain information about the flow of traffic.

From the number of registered participants per cell, the Talking behavior in the cell and the handover rate then there can be a connection between neighboring cells  on traffic-relevant variables such as traffic density, Traffic flow, etc. can be established.

A possible indicator of a traffic jam is for example the surge in Mobile phone calls from one or more cells.

The invention creates the basis for a very inexpensive and versatile and if necessary nationwide system, which current and current Information about traffic flow on roads, however also on other traffic routes on water, on land and in that delivers air.

The method can be over a single cellular network several in combination or with the participation of several networks in a freely selectable sequence be used.

About the selection of certain characteristics either of the mobile radio networks involved and / or of end devices and / or participant authorizations (subscriber identity modules) also include traffic flows, for example of trucks, ships, aircraft.

There are also deviations from the reference profiles of normal traffic flow (congestion, lower or higher speed, place of event, etc. recognizable.  

The invention is not based on that described Embodiments are limited, rather are also all features of the subclaims individually or in any combination as the scope of this Assigned patent application claimed.

Claims (6)

1. A method for recording traffic data from vehicles using mobile radio networks, characterized in that by means of central evaluation of operating parameters of the mobile radio network which contain information about operational processes and conditions in the mobile radio network, traffic conditions in at least part of a route network supplied by the mobile radio network specific algorithms can be determined. 2. The method according to claim 1, characterized in that by evaluating the operating parameter types of Operating profiles are formed that are characteristic Represent traffic conditions and which together with further, characterizing the traffic condition and influencing parameters as reference profiles to be recorded. 3. The method according to any one of claims 1 or 2, characterized characterized that currently determined operating parameters and the current, the traffic condition characterizing and influencing parameters with in relation to the reference profiles and that if there is a deviation from the reference profile, use  specific algorithms path elements with abnormalities be identified. 4. The method according to any one of claims 1 to 3, characterized characterized in that at least part of the data is processed further. 5. The method according to any one of claims 1 to 4, characterized characterized in that when evaluating Operating parameters depending on certain specific parameters of traffic condition information be determined via groups of road users. 6. The method according to any one of claims 1 to 5, characterized characterized in that it is a in the mobile network cellular cellular network.