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Transmission system and method of rail transit control data based on linux system

A technology for rail transit and transmission systems, applied in the program control, program control, electrical program control and other directions in the sequence/logic controller, it can solve the problems of long re-development time, many external expansion equipment, and high cost, and achieve data interaction. The effect of fast speed, simple task process, and low resource consumption

Active Publication Date: 2018-06-15
CHONGQING CHUANYI AUTOMATION
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the PLC for rail traffic control adopts general-purpose PLC, which has high power consumption, high cost, long research and development time, and many external expansion devices.

Method used

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  • Transmission system and method of rail transit control data based on linux system
  • Transmission system and method of rail transit control data based on linux system
  • Transmission system and method of rail transit control data based on linux system

Examples

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Embodiment Construction

[0017] see figure 1 , a rail traffic control data transmission system based on Linux system, comprising a PLC module, an IO module and an HMI module, and the IO module communicates with the PLC module through Ethernet. The HMI module communicates with the PLC module through Ethernet. The HMI module includes a read operation module, a write operation module and a man-machine interface, the read operation module and the write operation module are used to read and write PLC data respectively, and the man-machine interface is used to display the read and write PLC data fetched. The PLC module is provided with an IO communication input module, an IO communication output module, an input conversion module, an output conversion module, a task calculation module and a plurality of buffers, and the IO module is provided with an input module, an output module and an input data buffer area and output data buffer, the input module of the IO module is used to read the input data of the I...

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PUM

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Abstract

The invention discloses a track traffic control data transmission system and method based on a Linux system. The system comprises a PLC module, an IO module and an HMI module, wherein the PLC module is internally provided with an IO communication input module, an IO communication output module, an input conversion module, an output conversion module, a task calculation module and multiple buffer zones, and the IO module is internally provided with an input module, an output module, an input data buffer zone and an output data buffer zone. Through individual work of each module, data can be rapidly transmitted to the HMI from the IO module. The track traffic control data transmission system and method based on the Linux system has the advantages of fast data transmission speed, high real-time performance, independent modules, high fault tolerance, rapid data processing speed and high transplantability.

Description

technical field [0001] The invention relates to the field of rail traffic control systems, in particular to a Linux system-based rail traffic control data transmission system and method. Background technique [0002] At present, the PLC for rail transit control adopts general-purpose PLC, which has high power consumption, high cost, long research and development time, and many external expansion devices. Contents of the invention [0003] The purpose of the present invention is to address the deficiencies in the prior art and provide a system and method for transmitting rail traffic control data based on the Linux system. The data transmission system and method have high real-time performance, high precision, and fast data transmission speed , independent modules, high fault tolerance, fast data processing speed, and strong portability. [0004] The purpose of the present invention is achieved like this: a kind of transmission system based on the rail transit control data...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05
CPCG05B19/054G05B2219/15018
Inventor 夏中山马乾刘先振
Owner CHONGQING CHUANYI AUTOMATION
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