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Subway rail potential control system and method

A potential and system technology, applied in the general control system, control/regulation system, program control, etc., can solve the problems of hardware and software consumption, increase the overall structure, feedback signal response is not real-time, etc., to reduce the probability of signal stagnation, improve performance effect

Pending Publication Date: 2020-04-10
NANJING INST OF RAILWAY TECH
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  • Abstract
  • Description
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Problems solved by technology

[0006] In order to solve the above problems, the present invention provides a control system and method of subway rail potential, which effectively avoids that the feedback signal returned in the prior art is often stagnated and cannot be delivered to the control device in real time, so that the response of the feedback signal is not real-time, The defect that constructing several handshake links concurrently will increase the wear and tear of the software and hardware of the overall architecture

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  • Subway rail potential control system and method
  • Subway rail potential control system and method

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Embodiment Construction

[0057] The present invention will be further described below in conjunction with the drawings and embodiments.

[0058] Such as Figure 1-Figure 2 As shown, the subway rail potential control system includes a rail potential limiting device, which is applied to a subway system as an urban rail transit system. The rail potential limiting device includes a switch device and a grounding device. The switch device has a control terminal, A first connection end and a second connection end, the first connection end is electrically connected to the rail, the second connection end is electrically connected to the grounding device, and the control end is connected to a subway system as an urban rail transit system The signal system signal connection. In the case of a train entering a station or in other situations, the signal system can control the rail and the grounding device to be electrically connected via the control end, so as to achieve the same level between the rail and the ground...

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Abstract

A subway rail potential control system and method comprises a control device in signal connection with a control end, and the control device can send a control signal to the control end of a switch device to control connection or disconnection of a first connecting end and a second connecting end. The control device is further connected with a 3G module, and the control device is connected with amonitoring terminal in a 3G network in the 3G network through the 3G module. The control device transmits the control signal to a monitoring terminal through a link. In combination with other structures and modes, the defects that feedback signals returned in the prior art are often stagnated and cannot be transmitted to a control device in real time, so that the response of the feedback signals is not real-time, and the loss of software and hardware of the whole architecture is increased due to concurrent construction of a plurality of handshake links are effectively avoided.

Description

Technical field [0001] The present invention relates to the technical field of subway, and also belongs to the technical field of rail potential, and specifically relates to a control system and method of subway rail potential. Background technique [0002] In urban rail transit and other DC electrified rail transportation systems such as subways, rails are used as return conductors. Because the rails cannot be completely insulated from the ground, a part of the load current flows from the rails to sleepers and track beds and underground rail metal facilities. This part of the current is the stray current. At the same time, due to the leakage resistance of the running rail itself, when the train starts or runs, or a system short-circuit failure occurs, a certain floating potential difference between the rail and the ground will occur, that is, the rail potential. [0003] In order to prevent the generation of step voltage when passengers get on and off the train and endanger the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042G08C17/02
CPCG05B19/042G08C17/02
Inventor 宋奇吼周昌松徐百钏徐媛媛
Owner NANJING INST OF RAILWAY TECH
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