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Visual locale bus power distribution system apparatus for dangerous situation

A field bus and power distribution system technology, applied in circuit devices, emergency protection circuit devices, information technology support systems, etc., can solve the problems of cumbersome transportation and installation, unfavorable resource saving and safety guarantee, and high cable failure rate. Achieve the effect of stable and reliable system performance, convenient configuration engineering, and convenient engineering debugging.

Inactive Publication Date: 2009-04-15
SHANGHAI LEIYUE AUTOMATIC DEVICE
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AI Technical Summary

Problems solved by technology

[0003] In the current power supply and distribution system in dangerous places, the power supply and distribution equipment is mainly distributed in a discrete manner, which has many disadvantages: such as scattered power supply and distribution equipment, large equipment footprint, cumbersome transportation and installation, Not convenient for centralized control, high cable failure rate, etc.
Not conducive to resource conservation and security

Method used

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  • Visual locale bus power distribution system apparatus for dangerous situation
  • Visual locale bus power distribution system apparatus for dangerous situation
  • Visual locale bus power distribution system apparatus for dangerous situation

Examples

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Embodiment Construction

[0046]The analog input transmits the signal to the signal amplification, and converts the differential mode to common mode through analog-to-digital conversion, which is used as the input of the analog-to-digital conversion chip MAX1270. After the analog-to-digital conversion is converted to digital, it is transmitted to the CPU microcontroller through the optical coupler. The MCU receives the digital data and sends it to the DeviceNet network. The data sending and receiving on the DeviceNet network adopts the optical coupler isolation protection.

[0047] The main CPU mentioned here refers to the single-chip microcomputer. After receiving the data on the DeviceNet network, it is sent to the output board through the parallel port. The data sent by the CPU is received by the optical coupling isolation digital-analog chip MAX525 and converted into analog quantities. , after being amplified by the op amp LM348, it is output by the analog output.

[0048] Dial SW is used to switc...

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Abstract

The invention relates to a distributed power distribution system of a visual explosion-proof DeviceNet field bus. The hardware of the system consists of an execution unit control layer, a data acquisition protection layer, a visual operation management layer and a control centre. The execution unit control layer comprises a vacuum circuit breaker and a vacuum contactor; the data acquisition protection layer consists of a voltage data acquisition component, a current data acquisition component and a distributed bus-based integrated intelligent load protection device, and the data acquisition protection layer is connected with the visual operation management layer by the DeviceNet field bus; the visual operation management layer is an upper computer which is connected with the control centre by an Industrial Ethernet. The software of the system is the embedded configuration software which is installed in the upper computer. Compared with the prior art, the distributed power distribution system is a complete set of product consisting of a medium-voltage switchgear, a transformer and a low-voltage power distribution device, is matched with the software and the field bus-based intelligent data acquisition controller to realize the remote data acquisition.

Description

[technical field] [0001] The patent of the present invention relates to a visual field bus power distribution system device used in dangerous occasions, more precisely relates to a visual explosion-proof DeviceNet field bus distributed power distribution system. [Background technique] [0002] With the continuous advancement of modern industry, people put forward higher requirements for the control of humanized production process. Visualization, intelligence, networking, and decentralization represent the mainstream direction of the development of contemporary automation control technology, and fieldbus technology is the advanced technology that makes the automation system comply with this development requirement. DeviceNet is an open fieldbus technology based on CAN bus. With the joint efforts of major suppliers in the world, it has become one of the fieldbus technologies with a relatively high penetration rate, and has been widely promoted and applied at home and abroad. ...

Claims

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Application Information

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IPC IPC(8): H02J13/00H02H7/22H02H7/26
CPCY04S40/124Y04S10/20Y02E60/725Y02B90/2638Y02B90/20
Inventor 朱建高孙麟韩彦召唐晓泉夏明超
Owner SHANGHAI LEIYUE AUTOMATIC DEVICE
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