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A rail transit axle counting system based on fpga phase detection

A rail transit and phase detection technology, applied in vehicle route interaction equipment, railway signal and safety, railway signal and other directions, can solve problems such as the inapplicability of high-speed railway tracks, achieve small mutual interference, solve phase errors, adapt to strong effect

Active Publication Date: 2019-11-12
黑龙江瑞兴科技股份有限公司 +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing designs of axle counting equipment are not suitable for high speed railway tracks

Method used

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  • A rail transit axle counting system based on fpga phase detection
  • A rail transit axle counting system based on fpga phase detection

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Embodiment Construction

[0024] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0025] Such as figure 1 Shown, a kind of rail traffic axle counting system based on FPGA phase detection comprises the first wheel sensor (used to measure the number of wheels) that is arranged on one side of the track and the second wheel sensor that is arranged on the other side of the track, said first The first wheel sensor and the second wheel sensor are connected to the control room through the axle counting equipment. Preferably, CAN bus is used to transmit the axle counting data between the axle counting equipment and the control room. When the train wheel passes the wheel sensor, the square wave signal sent by the wheel sensor is blocked,...

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Abstract

The invention discloses a rail traffic axle counting system based on FPGA phase detection. The rail traffic axle counting system comprises a first wheel sensor arranged on one side of a rail and a second wheel sensor arranged on the other side of the rail, the first wheel sensor and the second wheel sensor are connected with a control room through axle counting equipment, and the axle counting equipment comprises a first FPGA, a first conditioning circuit, a second FPGA and a second conditioning circuit. The first FPGA generates a pulse signal with the frequency f1 and sends the pulse signal to the first wheel sensor through the first conditioning circuit, and a signal returned by the first wheel sensor is connected to the first FPGA through the first conditioning circuit to be subjected to data processing. The second FPGA generates a pulse signal with the frequency f2 and sends the pulse signal to the second wheel sensor through the second conditioning circuit, and a signal returned by the second wheel sensor is connected to the second FPGA through the second conditioning circuit to be subjected to data processing. The first FPGA and the second FPGA sends the counting results to the control room. The debugging efficiency is improved, and the rail traffic axle counting system is suitable for a train travelling at a high speed.

Description

technical field [0001] The invention relates to a rail transit axle counting system based on FPGA phase detection. Background technique [0002] Track axle counting equipment is an important equipment in the process of railway operation, which is directly related to the normal operation of trains. The existing designed axle counting equipment is only suitable for tracks with a certain running speed. With the continuous improvement of train speed (currently 350Km / h, and will increase to 400Km / h in the future, or even higher), and higher and higher requirements are also put forward for the axle counting equipment of railway trains. The axle counting equipment of existing design is not suitable for the higher speed railway track. Contents of the invention [0003] In view of the above problems, the present invention provides a rail transit axle counting system based on FPGA phase detection, adopts programmable logic device FPGA, simplifies the use of analog devices, improve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L1/16
CPCB61L1/16
Inventor 彭立群郭立民董士伟靳庆贵周文生蒋伊琳张忠民
Owner 黑龙江瑞兴科技股份有限公司
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