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Public transit automatic reporting station method

A technology for automatic station reporting and public transportation, which is applied in traffic control systems, road vehicle traffic control systems, satellite radio beacon positioning systems, etc., and can solve problems such as navigation satellites being unable to locate

Inactive Publication Date: 2007-06-06
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the existing automatic station reporting system based on the satellite navigation system, the navigation satellite is easily blocked by high-rise buildings and cannot be located. Automatic Announcement of Public Traffic Between High-rise Buildings

Method used

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  • Public transit automatic reporting station method

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Embodiment Construction

[0014] The signal that pseudolite 5 transmits among the present invention must be installed on the navigation satellite receiver 3 on bus 2 and receive, if receiver 3 on bus 2 can only receive GPS signal, so pseudolite 5 must transmit similar to GPS signal, if the receiver 3 on the bus 2 can only receive the GALILEO signal, then the pseudolite 5 must transmit a signal similar to GALILEO. Taking the GPS signal as an example now, in the design of the GPS system, the ranging signal is modulated by GOLD codes. In these GOLD codes, some are reserved for pseudolite applications. The pseudolite 5 adopted by the present invention can use these codes as Spread spectrum code, the signal frequency is L1 frequency, the navigation message includes information such as the position of the pseudolite, the data rate is 50Hz, and the synchronization with UTC is maintained through the GPS signal.

[0015] The top of the building where such pseudolites 5 are installed can be installed as required...

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Abstract

The invention opens a automatic reporting station method in public transport, which includes following steps: (a) first, detect navigating satellites along paths, place several pseudo-satellites in the regions that cannot be covered by navigating satellites. (b) set up pseudo-satellites transmission signals to be the signals that can be received by the satellite receivers in busses; (c) after receiving signals from pseudo-satellites and satellites, the bus sends position information to station reporter. The station reporter compares the positions of the bus and the bus station, then decides the time to report stations. The station reporter will automatically report stations if required.

Description

technical field [0001] The invention relates to an automatic station announcement method, in particular to an automatic station announcement method for public transport. Background technique [0002] The system and method of automatic station announcement are mainly used in the field of public transportation. The function of these systems and methods is to make the running bus automatically report the name of the station when it enters the station. [0003] Existing automatic station announcement systems and methods are based on the vehicle's own sensors, such as the Chinese invention patent "Method for Automatic Station Announcement by Station Announcer" with application number 02152577.3. The system reads vehicle sensor information, such as mileage information, to determine whether it is Arrival at the station; there are those based on radio communication, such as the Chinese patent "Public Transport Automatic Station Announcement Device" with application number 97241267.0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/133G08G1/0962G01S1/02G01S5/02G01S19/42
Inventor 杨博袁建平罗建军岳晓奎方群朱战霞
Owner NORTHWESTERN POLYTECHNICAL UNIV