Commute travel mode identification method based on AGPS technology

A technology of traffic travel and identification method, which is applied in services based on location information, traffic control systems for road vehicles, traffic control systems, etc., to overcome the small coverage of sample size, improve positioning accuracy, and improve positioning speed.

Inactive Publication Date: 2012-10-03
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] Therefore, there is still a certain gap between the existing identification methods of traffic travel modes and the more comprehensive, real-time and accurate requirements of ITS.

Method used

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  • Commute travel mode identification method based on AGPS technology
  • Commute travel mode identification method based on AGPS technology
  • Commute travel mode identification method based on AGPS technology

Examples

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Embodiment 1

[0059] The traffic travel mode identification method based on AGPS technology provided by the present invention uses the mobile phone installed with the GPS module to obtain the data (GPS information) of the traffic travel object, then transmits the data to the positioning server installed in the mobile communication network, and finally passes the positioning server Identify modes of transportation. figure 1 It is a flow chart of the identification method of traffic travel mode based on AGPS technology, such as figure 1 Shown, the method provided by the invention comprises:

[0060] Step 1: The positioning server establishes a state information database.

[0061] Step 2: The positioning server obtains status information from the mobile phone every set time T and stores it in the status information database; the status information includes: current date, current time, longitude, latitude, altitude, instantaneous speed, number of satellites in view and level positional accura...

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Abstract

The invention discloses a commute travel mode identification method based on the AGPS (Assisted Global Positioning System) technology, which belongs to the traffic management and information service technical fields. The commute travel mode identification method comprises the following steps: a positioning server builds a status information database; the positioning server acquires status information from a mobile phone every T (a set period of time) and stores the acquired information into the status information database; the status information stored in the status information database is subjected to pre-treatment and data influencing the positioning accuracy is deleted; sampled data is extracted from the status information database; the extracted sampled data is divided into training sampled data and testing sampled data; a BP (Back Propagation) nerve network is built and trained by utilizing the training sampled data; and the testing sampled data is substituted into the trained BP nerve network to obtain a commute travel mode identification result. The commute travel mode identification method improves the positioning speed and accuracy and overcomes shortcomings in a conventional acquisition method.

Description

technical field [0001] The invention belongs to the technical field of traffic management and information services, and in particular relates to an AGPS technology-based traffic travel mode identification method. Background technique [0002] The development of urbanization inevitably produces more and more serious traffic congestion problems. In order to solve the traffic congestion problem, countries all over the world have proposed different solutions. At present, the Intelligent Transportation System (Intelligent Transportation System, referred to as ITS) is recognized as one of the effective means to solve the problem of traffic congestion. As an information system, ITS mainly includes the following three basic links: (1) Complete and real-time traffic information collection (2) Real-time and efficient information exchange system, including information exchange among traffic participants, traffic managers, vehicles, etc.; (3) Traffic management release system with self...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00H04W4/02G01S19/42
Inventor 钱大琳罗艺闫彭李珊珊李成华董倩
Owner BEIJING JIAOTONG UNIV
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