Distributed flexible control method suitable for city long tunnel

A control method and distributed technology, applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve the problems of difficult maintenance, high cost, weak fault analysis methods, etc., to achieve flexible control, high flexibility, and convenient construction management effect

Inactive Publication Date: 2008-01-23
WUHAN UNIV OF TECH +1
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Problems solved by technology

If you continue to use the usual centralized rigid control structure, such as segmented centralized control, it will lead to construction (the construction of this system is intertwined with the progress of civil enginee

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  • Distributed flexible control method suitable for city long tunnel

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Embodiment Construction

[0008] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0009] The upper layer network of the present invention is located in the central control room (duty room) of the system, responsible for the operation of the bottom layer control process, data processing, storage, display, alarm, report generation, and some data management stations to analyze the data of the system operation station, for Provide support for future management and decision-making. The software platform used by the upper-layer network operation station is windows, and Ethernet is used between the operation stations. It can also communicate with other systems conveniently when needed, and realize the purpose of sharing data through a relational database, which is convenient for expansion and uses communication media. It is a twisted pair, of course, optical fiber can also be used, and radio can also be used for communication through MODERM or se...

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Abstract

The utility model relates to a distributing type flexible control method which is applicable to the long tunnel in the city. The utility model is composed of a upper network and a lower network and characterized in that the upper network is in the central control room of the system to control the operation of the lower control flow, the data handling, the storage, the display, the alarming, the report generation as well as the data from some data management stations and the analytic system operating stations; the lower network introduces the can concentric line so as to integrate a plurality of PLC into the can bus network. PLC realizes the analog collection and the logic control. The collected data is delivered the upper network via the can concentric line; the upper network sends out the control command to PLC which carries out the relevant operation as per the order received. The optical fiber is used as the transmission medium between the upper network and the lower network. For the utility model, each test point is controlled by one PLC and then re-concentrated to the central control room. Thus, the method is almost isolated from the civil work construction, so as to facilitate the construction management for the long tunnel monitored control system in the city.

Description

technical field [0001] The invention belongs to the field of control engineering, in particular to a distributed flexible control method suitable for urban long tunnels. Background technique [0002] Since the automation control system began to be applied in the world in the 1960s, it has developed rapidly. In the 1980s, the emergence of a wide variety of distributed control systems and programmable controllers has improved the reliability, real-time performance, operability and maintainability of automation. It has been greatly improved and has become the mainstream product of the control system. However, since both DCS and PLC use manufacturer-specific integrated circuits, there is no communication between similar systems or between this system and other systems. In the 1990s, there was a revolutionary progress in the field of personal computers, and then began to enter the industrial field, and took automation as its main goal, so the PC-based industrial process control s...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 钟珞马成前刘长江陈军袁景凌汪淑平唐昌尧李超胜田久晖王锋张慕王舜燕冷裕材周细光
Owner WUHAN UNIV OF TECH
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