Control system based on profibus redundant network topological structure and switching method of control system

A technology of redundant network and control system, applied in transmission system, comprehensive factory control, digital transmission system, etc., can solve the problem of not having bus control rights, etc., to enhance stability and redundancy, enhance reliability, reduce The effect of risk cost

Inactive Publication Date: 2013-05-15
TONGJI UNIV
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  • Summary
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  • Claims
  • Application Information

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Problems solved by technology

The backup process control station is in the bus monitoring state, and the arbitration signal sent by the dual-machine switching arbitration module shields the sending function of the backup process control station. The backup process control station can receive data from the slave stations on the bus, but does not have the right to control the bus

Method used

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  • Control system based on profibus redundant network topological structure and switching method of control system
  • Control system based on profibus redundant network topological structure and switching method of control system
  • Control system based on profibus redundant network topological structure and switching method of control system

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Embodiment Construction

[0040] based on the following Figure 3 ~ Figure 5 , specifically explain the preferred embodiment of the present invention.

[0041] Such as image 3 As shown, it is a schematic diagram of a control system based on a fieldbus redundant network topology provided by the present invention. The control system includes a main control dp network 11 and a hot standby dp network 22. The main control dp network 11 includes a main control dp network 11 The control master station 1 and several master control slave stations (1 to n+1), the hot standby dp network 22 includes the hot standby master station 2 and several hot standby slave stations (n+2 to 2n+2).

[0042] The master control master station 1 and one of the hot standby slave stations 2n+2, as two master control dp nodes, communicate with each other through the system internal bus to form a master control system, and the master control master station 1 acts as a master control The master station of the dp network 11, the hot ...

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Abstract

The invention discloses a control system based on a profibus redundant network topological structure and a switching method of the control system. A master control system and a hot-standby system respectively serve as main stations of two networks, can simultaneously control slave stations under the networks, and both have the control right of a bus; in addition, the master control system and thehot-standby system also respectively serve as the slave stations in the network of the opposite party so as to realize mutual supervision communication and enhance the stability and the redundancy ofthe system. When the master control system fails, the master control system can be switched to the hot-standby system to work in a seamless way. Through the topological structure, data processing (dp) modules of all manufacturers can be used; simultaneously a dp / dp coupler module does not need to be used any longer; the risk cost of the system is reduced; and the reliability of the overall systemis enhanced.

Description

technical field [0001] The invention relates to a control system and a switching method based on a field bus redundant network topology structure, and is especially suitable for a communication control system of a long stator cable trackside switch station. Background technique [0002] Unlike traditional wheel-rail vehicles, the traction drive system of linear motor-driven trains is not installed on the vehicle, but is powered by the three-phase stator winding cables of the synchronous long-stator linear motor laid on the track to generate a levitating magnetic field and push force to pull the vehicle along the track. Through the opening and closing of the trackside switch station, only the current stator segment where the vehicle is located needs to be powered to realize segmental power supply of the stator segment to save energy and improve efficiency. The control of the switch station adopts the fieldbus profibus dp structure. [0003] Fieldbus is a system that realize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418H04L12/24
CPCY02P90/02
Inventor 刘洪池葛琼璇王晓新张树田秦峰史黎明
Owner TONGJI UNIV
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