Beidou continuously operating reference station (CORS) compatible bus precise positioning system and working method thereof

A precise positioning and Beidou technology, applied in the field of the Beidou CORS precise bus positioning system, which can solve the problems of deviating bus road warning, large positioning error, insufficient GPS positioning technology, etc.

Active Publication Date: 2015-09-16
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the development and construction of urban intelligent public transport, especially in the fields of real-time positioning, dynamic monitoring, and dispatch management of buses, GPS has become one of the key technologies for building urban intelligent public transport. However, the current application of GPS positioning technology in the field of intelligent public transport is still There are deficiencies
Due to the influence of various factors in the system and measurement, the GPS positioning accuracy error of the current bus is generally in the range of a few meters or even tens of meters. Therefore, ...

Method used

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  • Beidou continuously operating reference station (CORS) compatible bus precise positioning system and working method thereof
  • Beidou continuously operating reference station (CORS) compatible bus precise positioning system and working method thereof
  • Beidou continuously operating reference station (CORS) compatible bus precise positioning system and working method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A precise positioning system for buses compatible with Beidou CORS, including a precise positioning terminal for buses compatible with Beidou CORS, a CORS positioning system, a communication service center and a background management system for buses, the precise positioning terminal for buses compatible with Beidou CORS, the CORS positioning system and the The bus background management system is respectively connected to the communication service center, and the Beidou CORS bus precise positioning terminal includes a CPU module, a power supply module, a Beidou / GPS dual-mode positioning module, an inertial navigation positioning module, a 3G / 4G communication module, and a touch screen display Module and storage module, the CORS positioning system includes a reference station, a data processing center and a communication gateway one, the bus background management system includes a communication gateway two, a data analysis and processing module, the power supply module, th...

Embodiment 2

[0044] According to the working method of the system described in embodiment 1, the specific steps include as follows:

[0045] (1) The Beidou-compatible CORS bus precise positioning terminal is initialized;

[0046] (2) When not entering the GPS signal blind area, the Beidou / GPS dual-mode positioning module receives satellite signals, the CPU module solves the position information of the bus, and the 3G / 4G communication module calculates the position of the bus The information is sent to the data processing center; when entering the GPS signal blind area, the inertial navigation positioning module uses the inertial navigation algorithm to locate the position information of the bus;

[0047] (3) When the communication link is interrupted, store the position information of the bus obtained in step (2) in the storage module, and when the communication resumes, read out the position information of the stored bus from the storage module, and send to the data processing center for...

Embodiment 3

[0054] According to the working method described in Embodiment 2, the difference is that in the step (2), the storage module is stored using a CF card.

[0055] The advantage of the design here is that the storage module uses a CF card for storage, which is small in size, convenient and easy to install.

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Abstract

The invention relates to a Beidou continuously operating reference station (CORS) compatible bus precise positioning system. The Beidou continuously operating reference station (CORS) compatible bus precise positioning system includes a Beidou CORS compatible bus precise positioning terminal, a CORS positioning system, a communication service center and a bus background management system; the Beidou CORS compatible bus precise positioning terminal includes a CPU module, a power source module, a Beidou/GPS dual-mode positioning module, an inertial navigation positioning module, a 3G/4G communication module, a touch screen display module and a storage module; and the CORS positioning system includes a base station, a data processing center and a communication gateway 1. According to the Beidou continuously operating reference station (CORS) compatible bus precise positioning system of the invention, the GPS and the CORS are combined together, and therefore, the effectiveness and integrity of the system can be improved; the defect of incapability of performing position when a bus enters a GPS blind area can be eliminated, and vehicle real-time accurate positioning can be realized, and positioning accuracy can reach a centimeter level; accurate positioning data which are obtained in real time are transmitted to a background management center so as to be stored, and therefore, reliable data can be provided for the generation of bus roads.

Description

technical field [0001] The invention relates to a precise positioning system for buses compatible with Beidou CORS and a working method thereof, belonging to the technical fields of intelligent transportation and Beidou / GPS positioning. Background technique [0002] In the development and construction of urban intelligent public transport, especially in the fields of real-time positioning, dynamic monitoring, and dispatch management of buses, GPS has become one of the key technologies for building urban intelligent public transport. However, the current application of GPS positioning technology in the field of intelligent public transport is still There are deficiencies. Due to the influence of various factors in the system and measurement, the current bus GPS positioning accuracy error is generally in the range of several meters or even tens of meters. Therefore, it is impossible to accurately determine whether the bus is driving on the bus lane or whether the bus has arriv...

Claims

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Application Information

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IPC IPC(8): G08G1/123
Inventor 邢建平刘勇孟令国李慧恬崔冰吴川
Owner SHANDONG UNIV
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