Method and apparatus for detecting vehicle flow information

Abstract

The invention relates to a method and a device for detecting vehicle flow information, wherein the method comprises leading vehicles which are travelling to intercommunicate a digital coding for reflecting vehicle travelling information of the travelling condition through a wireless digital communication mode, and leading vehicle flow information which is integrated by the travelling information of the vehicle to be generated in all the vehicle-carrying devices of vehicles which intercommunicate signals. The method smartly utilizes vehicles which are travelling to be the collecting and the delivering vehicle of vehicle flow information, and the aggregation of the travelling condition information of all the vehicles on any position of a certain road section which is needed can be obtained through detecting one vehicle, and the method completely breaks through the limitation of time, space and sampling objects of the original vehicle flow detection method. An intelligent road traffic light system which utilizes the device for detecting vehicle flow information can greatly improve the capability of accurately predicting road traffic conditions, and maximally play the capacity of road facilities through the optimum timing control of traffic lights.

Description

technical field [0001] The invention belongs to the technical field of modern road traffic information management, and in particular relates to a key technology for obtaining accurate and sufficient timely traffic flow information required for optimal timely control in an intelligent road traffic signal light system. Background technique [0002] At present, the non-intelligent road traffic lights that are widely used often cause unnecessary delays for vehicles at intersections because the timing of the signal lights cannot be adjusted in a timely manner according to the actual road traffic conditions. Especially in economically developed cities, with the increasing number of social vehicles, the problem of traffic congestion caused by non-intelligent traffic lights is becoming more and more serious. In order to solve this problem, people hope to design a so-called intelligent road traffic signal light system that can automatically adjust the timing of signal lights in good ...

AI Technical Summary

Problems solved by technology

In fact, these methods have not overcome the limitations of the ground induction coil method: because the card-based electronic tags or the vehicle-mounted devices that can emit radar signals are also "unable to perceive without reaching", the problems encountered are similar to the ground induction coil method. It's exactly the same; the device that can transmit short-range radio frequency signals is actually equivalent to the forward movement of the ground induction coil, and its effect certainly cannot jump out of the contradictions of time difference, space difference, and detection object loss or detection object difference like the ground induction coil method. lock up

This asymmetry of methods and needs makes the above contradictions insurmountable

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