Distributed traffic state detection system and method based on Bluetooth technology

Abstract

The invention discloses a distributed traffic state detection system and method based on the Bluetooth technology. The system comprises a registered vehicle-mounted Bluetooth device, road side Bluetooth detection devices, a remote control center and an information issuing terminal. The system is provided with the multiple road side Bluetooth detection devices in a detection region, the road side Bluetooth detection devices can acquire the MAC address of the passing registered vehicle-mounted Bluetooth device, the MAC address and position information and detection time information of the road side Bluetooth detection devices form information packets which are sent to the remote control center in a wireless communication mode, and the remote control center calculates the average road segment travel time and the average road segment speed of layout road segments and evaluation indexes for representing the traffic jam degree. According to the system and method, the traffic operation condition in the detection region can be judged, and the hardware devices are easy to install, low in implementation cost, free of influences caused by weather and the like, and capable of working in 24 hours. The system and method have a supplement effect on video card slots by looking for the historical routes of a vehicle with the designated MAC address.

Description

technical field [0001] The invention relates to urban road management and traffic detection technology, in particular to a distributed traffic state detection system and method based on bluetooth technology. Background technique [0002] Traffic congestion is the main livelihood problem faced by many cities, and traffic congestion tends to expand in time and space. A comprehensive understanding of the overall traffic congestion situation in the city is the first problem that traffic managers must face, which is conducive to taking appropriate traffic control measures to prevent or Alleviate traffic congestion and facilitate traffic travel. Among them, the road segment travel time and the average speed of the road segment are important indicators reflecting traffic congestion. [0003] Traditionally, detectors such as loop coils and video can be used to obtain the travel time of the road section. However, complex operations such as cutting the road surface are often required...

AI Technical Summary

Problems solved by technology

[0003] Traditionally, detectors such as loop coils and video can be used to obtain the travel time of the road section. However, complex operations such as cutting the road surface are often required, and it is easily affected by weather and visibility. In addition, the floating car technology can also obtain the travel time of the road section. , however, the application of this technology requires a large investment and is easily affected by the matching accuracy of the electronic map.

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