Method for detecting traffic state based on mobile phone signal data

A technology for data detection and traffic status, applied in traffic flow detection and other directions, can solve problems such as inability to process mobile phone signal data, achieve high data accuracy, large data coverage, and save infrastructure investment.

Active Publication Date: 2009-08-19
SHANGHAI MEIHUI SOFTWARE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Previous methods and systems cannot use basic knowledge of traffic science or traffic engi

Method used

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  • Method for detecting traffic state based on mobile phone signal data
  • Method for detecting traffic state based on mobile phone signal data
  • Method for detecting traffic state based on mobile phone signal data

Examples

Experimental program
Comparison scheme
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Embodiment

[0021] A kind of method that the present invention provides based on mobile phone signal data detects traffic state, and the steps are:

[0022] Step 1, establish a virtual sensor network;

[0023] Step 1.1, obtain the position of the virtual sensor node and the sequence of the cell base station by the field test, wherein the virtual sensor node is defined as a point where a wireless network event occurs due to a change in the mobile phone network signal in the intersection area between the wireless network and the road network:

[0024] Step 1.1.1, the test vehicle implements the wireless network drive test operation, collects the handover information and location update information of the Um interface on the specified road section and the specific location of the test vehicle when these information occur on the road section. The real-time traffic information needs to select different ranges, usually, as long as it is a public road that allows vehicles to drive;

[0025] The...

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PUM

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Abstract

The invention provides a method for detecting traffic state based on mobile phone signals. A virtual sensor network is set up to acquire the real-time signal data sent from all mobile phones within a time interval from a mobile phone network at a fixed time interval, a virtual sensor section and the traveling speed vi can be obtained according to the real-time signal data sent from an i-th mobile phone; the virtual sensor section is superposed onto a road network to obtain the road network section and the traveling speed Vi of the i-th mobile phone; a real-time traffic flow intensity K and a section traffic flow Q can be obtained by collecting the number n of the mobile phones on each road network section and the traveling speed V of each road network section; and finally, through a traffic parameter prediction model, the predicted traffic flow speed V, the traffic flow intensity K and the section traffic flow Q can be obtained. The method has the advantages that the large range of real-time traffic data acquisition in the city can be completed in a short time by fully relying on the existing mobile communication network resources, and utilizing the information in the existing mobile phone communication network, meanwhile, the initial investment is relatively small, the data coverage is wide, and data accuracy is high.

Description

technical field [0001] The invention relates to a method for detecting traffic state based on mobile phone signal data, which is suitable for urban traffic transportation management and traffic information service industries, and belongs to the technical field of methods for detecting traffic state by using mobile phone signals. Background technique [0002] Intelligent Transportation System (ITS for short) is a real-time, accurate and efficient transportation management system that uses information and communication technology to closely coordinate and harmonize people, vehicles and roads, and play a role in a wide range of areas. . ITS can effectively use existing transportation facilities to reduce traffic load and environmental pollution, ensure traffic safety, improve transportation efficiency, thereby promoting social and economic development, improving people's quality of life, and is widely recognized for its ability to promote social informatization and form new ind...

Claims

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Application Information

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IPC IPC(8): G08G1/01
Inventor 邱志军裘炜毅冉斌
Owner SHANGHAI MEIHUI SOFTWARE
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