Different species traffic information real time integrating method

A traffic information, heterogeneous technology, applied in traffic flow detection, beacon systems using radio waves, measurement devices, etc., can solve the problems of poor portability, difficult to implement, and difficult to adapt to the real-time fusion environment of traffic information.

Inactive Publication Date: 2007-10-31
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0003] After searching the prior art literature, it was found that the paper "An arterial speed estimation model fusing data from stationary and mobile sensors" published by R.L.Cheu et al. , (A Main Road Speed ​​Estimation Model for Fusion of Static and Dynamic Sensor Data) In this paper, the neural network-based model is used to realize the fusion of the detection ring data and the GPS probe car data, and the simulation data is used to verify the model's performance through the simulation platform. Effect, however, the neural network needs a large amount of data truth value to train, which is difficult to achieve in practical applications; K.Choi et al published the paper "A data fusion" on Intelligent Transportation Systems (intelligent transportation system) in 2002 Algorithm for estimating link travel time", (data fusion algorithm for road section travel time estimation), among them, an algorithm based on fuzzy theory is proposed to fuse ...

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  • Different species traffic information real time integrating method
  • Different species traffic information real time integrating method
  • Different species traffic information real time integrating method

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Embodiment Construction

[0045] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementations example.

[0046] In order to better understand the method proposed in this embodiment, a road section in Xuhui District, Shanghai is selected for an example of traffic state fusion analysis, which can be applied to different road networks and road sections in different cities. This embodiment requires the detection data of the SCATS induction coil detector in this section of the road within one day, including information such as traffic flow, coil idle time; and the detection data of the GPS detection vehicle detector, including coordinates, vehicle speed, direction of vehicle head, state, ti...

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Abstract

This invention discloses one method for information process in traffic technique by use of abnormal traffic information for real time traffic status merging estimation, which comprises the following steps: sensor test information property extracting; b, reliability matrix W determining; c, reliability establishing; d, property merging module; e, final property deciding.

Description

technical field [0001] The invention relates to an information processing method in the technical field of transportation, in particular to a real-time fusion method of heterogeneous traffic information. Background technique [0002] With the development of intelligent transportation technology, the dynamic estimation of urban traffic flow has received more and more attention. The traffic state estimation is inseparable from accurate and reliable traffic information, so the accuracy of the detection information method determines the accuracy of the traffic state estimation. There are many ways to detect traffic flow information in urban road network, mainly magnetic frequency induction coil detection method, GPS detection car detection method, video detection method and so on. These methods have achieved success in some aspects and have practical value, but they have their own limitations in the estimation of urban road network traffic status. The induction loop detector c...

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Application Information

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IPC IPC(8): G08G1/01G01S1/02G01S5/02
Inventor 孔庆杰刘允才
Owner SHANGHAI JIAO TONG UNIV
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