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Satellite-based train vehicle-mounted speed measuring and positioning system and method thereof

A satellite positioning and positioning system technology, which is applied in the field of satellite-based on-board speed measurement and positioning systems for trains, can solve the problems of high train positioning costs and low positioning accuracy, and achieve the effects of fast positioning speed, high positioning accuracy and cost reduction.

Inactive Publication Date: 2020-04-28
CASCO SIGNAL
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Problems solved by technology

Therefore, the current train positioning has problems such as high cost and low positioning accuracy.

Method used

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  • Satellite-based train vehicle-mounted speed measuring and positioning system and method thereof
  • Satellite-based train vehicle-mounted speed measuring and positioning system and method thereof
  • Satellite-based train vehicle-mounted speed measuring and positioning system and method thereof

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0041] Such as figure 1 As shown, a satellite-based vehicle-mounted train speed measurement and positioning system includes: a satellite positioning receiver, a wheel speed sensor, and a vehicle-mounted host computer. The satellite positioning receiver is responsible for receiving satellite signals in the air, performing differential correction and outputting speed and position information; the wheel speed sensor is installed on the walking shaft of the ve...

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Abstract

The invention relates to a satellite-based train vehicle-mounted speed measuring and positioning system and a method thereof. The system comprises a satellite positioning receiver, a wheel speed sensor and a vehicle-mounted host, and the satellite positioning receiver is responsible for receiving satellite signals in the air, performing differential correction and outputting speed and position information; the wheel speed sensor is installed on a walking shaft of a vehicle and is responsible for measuring the rotating angle of a wheel, obtaining the rotating angle speed of the wheel through periodic sampling and converting the diameter of the wheel to obtain the running speed of the vehicle; and the vehicle-mounted host is responsible for receiving and processing data of the satellite positioning receiver and the wheel speed sensor and finally outputting speed measuring and positioning results. Compared with like systems and methods in the prior art, the system and the method of the invention have the advantages of cost reduction, high positioning precision, high positioning speed and the like.

Description

technical field [0001] The invention relates to the field of train vehicle speed measurement and positioning systems, in particular to a satellite-based train vehicle speed measurement and positioning system and method. Background technique [0002] The on-board speed measurement and positioning system of the train is the basic system of the rail transit train, which is responsible for providing the real-time position and speed of the train and providing support for the train operation business. According to different business forms of rail transit, the vehicle-mounted speed measurement and positioning system adopts different technical solutions. High-speed rail and intercity trains are positioned in the form of track circuits, transponders, and wheel speed sensors. In order to meet the safety requirements of SIL4, multiple systems are generally configured to meet safety requirements through redundant algorithms. Trains such as subways, light rails, and trams are positioned...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L25/02
CPCB61L25/021B61L25/025
Inventor 崔洪州阳扬叶浩蒋耀东王兆耀
Owner CASCO SIGNAL
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