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Safe display method for execution state of control command

A technology for executing status and control commands, which is applied in railway signal and safety, transportation center control system, transportation and packaging, etc., can solve problems such as misoperation of the on-duty personnel and poorly resolved equipment, and achieve the goal of increasing costs Effect

Active Publication Date: 2021-09-21
CASCO SIGNAL
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] At present, the common practice in the industry is to use the second confirmation operation. However, the second confirmation operation protects against the misoperation of the attendant, and to a certain extent, prevents the ATS from issuing control commands by mistake. The actual execution of the control commands is the equipment The problem of wrong display of the actual state has not been well resolved, thus laying a hidden danger to the behavior of the watchman who relies on the ATS display to make decisions

Method used

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  • Safe display method for execution state of control command
  • Safe display method for execution state of control command
  • Safe display method for execution state of control command

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Embodiment Construction

[0021] based on the following Figure 1 to Figure 5 , specifically explain the preferred embodiment of the present invention.

[0022] The invention provides a method for safely displaying the execution state of a control command, including CRC (Cyclic Redundancy Check) between the preset automatic train monitoring system and the safety lower computer (trackside / vehicle / interlock) Verified transmission protocol, the automatic train monitoring system sends control commands to the safety lower computer through the preset transmission protocol, and receives the status feedback information returned by the safety lower computer through the preset transmission protocol, and the automatic train monitoring system uses CRC to VCP The secure decoding technology converts the received status feedback information (bare data) of the safety lower computer into VCP (secure code processor) code, and then uses VCP computing technology to convert the VCP code into ASCII codes for display charact...

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Abstract

The invention provides a safe display method for the execution state of a control command, an automatic train monitoring system converts received state feedback information of a safe lower computer into a VCP code by using a CRC-to-VCP safe decoding technology, and the automatic train monitoring system converts the VCP code into a display character ASCII code by using a VCP computing technology and displays the display character ASCII code on a screen. According to the method, environmental interference and various software and hardware failures are shielded, the actual execution state of the real display equipment is ensured, and the safety is greatly improved.

Description

technical field [0001] The invention relates to a subway signal control system, in particular to a method for safely displaying the execution state of a control command. Background technique [0002] As an important part of the subway signal control system, Automatic Train Supervision (ATS) is interlocked with microcomputer, trackside ATP (Automatic Train Protection) equipment, on-board ATP / ATO equipment and other signal equipment Cooperate to realize centralized monitoring of signal equipment, and control trains to run automatically on the main line and depot / parking lot as planned. The process of ATS sending control commands to interlocking, ATP and other equipment is as follows: the operator inputs the control request, selects the operation and the corresponding equipment, and ATS will feedback the status of the equipment after the execution is successful. If the execution fails, the operator needs to be prompted to execute the control command again . Safety-related com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L29/08B61L27/00
CPCH04L1/0061H04L67/12B61L27/00H04L67/565
Inventor 孙博龙刘晓周公建陈景柱任倩王胜陈思宇黄晓帆
Owner CASCO SIGNAL
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