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Traffic characteristic parameter extraction method based on vehicle Bluetooth

A vehicle-mounted Bluetooth and traffic parameter technology, which is applied in the traffic control system of road vehicles, traffic flow detection, traffic control system, etc., can solve the problems of difficult handling and low precision, and achieve low installation cost, less calculation, and equipment loading and unloading convenient effect

Inactive Publication Date: 2016-02-17
TONGJI UNIV
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of low accuracy and difficult handling of traditional data collection methods such as coil and video collection in the prior art, the present invention discloses a method for extracting traffic characteristic parameters based on vehicle-mounted Bluetooth

Method used

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  • Traffic characteristic parameter extraction method based on vehicle Bluetooth
  • Traffic characteristic parameter extraction method based on vehicle Bluetooth
  • Traffic characteristic parameter extraction method based on vehicle Bluetooth

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Embodiment Construction

[0020] The invention discloses a method for extracting traffic characteristic parameters based on vehicle-mounted Bluetooth, which specifically includes: a traffic parameter extraction algorithm based on vehicle-mounted Bluetooth, processing traffic data of vehicles detected by Bluetooth detection equipment, and extracting vehicle types, road section traffic, Traffic guidance and control parameters such as average vehicle speed and travel time. The traffic data of vehicles includes dynamic parameters such as average speed, vehicle density, traffic volume, peak hour coefficient and so on when vehicles pass through the intersection.

[0021] Those skilled in the art know that as long as the average speed of the vehicle passing through the road section is detected, and the average speed is compared with the free flow speed of the road section, the traffic state of the road section can be easily judged, that is, whether it is in Congested state.

[0022] The following details how...

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Abstract

The invention relates to the field of intelligent traffic data collection, and discloses a traffic characteristic parameter extraction method based on vehicle Bluetooth. The method is characterized by specifically comprising the steps of processing passing data of vehicles detected by Bluetooth detection equipment through a traffic parameter extraction algorithm based on vehicle Bluetooth, and extracting vehicle type, road traffic, average speed, travel time and other traffic induction and control parameters, wherein the Bluetooth equipment on a vehicle records the static parameters of the vehicle, and the passing data of vehicles refers to the dynamic parameters of passing vehicles. The MAC address of the vehicle Bluetooth is used as the unique identifier of vehicles in the road network, and a vehicle Bluetooth data processing procedure is put forward. The good effect of the method illustrates the rationality and feasibility of the algorithm structure and design thought.

Description

technical field [0001] The invention relates to the field of intelligent traffic data collection, in particular to a method for extracting traffic characteristic parameters based on vehicle bluetooth. Background technique [0002] In the road network, the vehicle's travel trajectory contains a wealth of traffic travel and status information, such as travel route, travel time, real-time location and other information, so the vehicle's travel trajectory can be regarded as the static storage of road network traffic operation. Vehicle identification and positioning are the core technologies for obtaining travel trajectories. Identification is used to read vehicle information, and positioning is to determine the real-time position of the vehicle. In modern traffic management, the identification and positioning of vehicles and the acquisition of macroscopic traffic parameters are inseparable. In the application of intelligent transportation technology, the collection method of tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/052G08G1/065
Inventor 吴志周吕瀚谭桂杉梁韵逸
Owner TONGJI UNIV
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