CN201689316U

CN201689316U - Analog quantity output adjusting system of mining substation

Info

Publication number: CN201689316U
Application number: CN200920350217XU
Authority: CN
Inventors: 高劲松; 李红玉; 王红卫
Original assignee: SHANXI SHENGHUA ELECTRONIC SYSTEM ENGINEERING Co Ltd
Current assignee: SHANXI SHENGHUA ELECTRONIC SYSTEM ENGINEERING Co Ltd
Priority date: 2009-12-30
Filing date: 2009-12-30
Publication date: 2010-12-29
Anticipated expiration: 2019-12-30

Abstract

An analog value output adjusting system of a mining substation is a microcomputer system adopting 89C54 as a CPU and consists of four circuit boards including a main board, a display board, a communication board and an interface board. The main board is a main control circuit of the mining substation and provided with a single chip microcomputer, the display board is used for displaying states of various parameters and control values, power state, communication state and the like which are monitored by the substation, the communication board is used for being communicated with a center station, and the interface board is located in a wiring cavity of the substation and used for connecting the substation with external equipment. The analog value output adjusting system realizes coordination under uniform dispatching of the single chip microcomputer, has functions of analog value signal acquisition, switch value signal acquisition, switch value control signal output and new developed analog value adjusting signal output, simultaneously has a transmission function, and can receive commands of a ground upper computer.

Description

Mining substation analog quantity output regulating system

Technical field

The utility model relates to a kind of mine supervision system, specifically is mining substation analog quantity output regulating system.

Background technology

The colliery is the equipment of a cover robotization control with safety monitoring system itself, its control function is more single for many years, has only relay output, the power supply that also promptly can only realize control of electrical equipment whether, the control section of the function of mining substation is just exported switching value control in the mine supervision system, can't realize the adjusting of field working conditions.

Goal of the invention

At the scene in the production link, some production status need constantly be regulated, control for the aspects such as adjusting angle that realize opening degree, air regulator to valve, we have designed this analog quantity output regulating system on the basis of the mining substation of tradition, for the automatic adjusting of the operating mode in the safety in production process provides possibility, substitute conventional manual and regulate, realize Comprehensive Control.

Summary of the invention

It is the micromachine system of CPU with 89C54 that mining substation analog quantity output regulating system is one, form by four circuit boards, be mainboard, display board, communication board, interface board, described mainboard is the governor circuit of mining substation, single-chip microcomputer is arranged on the mainboard, and display panel used in showing various parameters that substation monitors and controlled quentity controlled variable state, power supply status, communication state etc., communication board is used for and the central station communication, interface board is positioned at the substation wire connection cavity, is used for being connected of substation and external unit.

Described mining substation analog quantity output regulating system is by the work of the commander of the single-chip microcomputer uniform dispatching on mainboard total system, single-chip microcomputer has analog signals collection, switching value signals collecting, the output of switching value control signal and analog quantity conditioning signal output function newly developed, have transfer function simultaneously, can receive the instruction of ground host computer.

It is high precision D/A conversion chip that described analog quantity is exported regulating and controlling system main circuit, and the digital signal that single-chip microcomputer is exported is converted to analog voltage signal output, thereby realizes various Signal Processing and adjusting.

Description of drawings

Fig. 1 is mining substation analog quantity output regulating system connected mode synoptic diagram

Fig. 2 is the illustrative view of functional configuration of mining substation analog quantity output regulating system mainboard

Fig. 3 is mining substation analog signals output regulating system principle of work synoptic diagram

Embodiment

The single-chip data interface is with the single-chip microcomputer swap data in the analog quantity output regulating system, be transferred to the D/A converter circuit through light-coupled isolation, so just, the digital signal of single-chip microcomputer is converted to the d. c. voltage signal of 0-5V, go control and regulate out control circuit through amplifying circuit output again, single-chip microcomputer in the substation analog quantity output regulating system is being administered all resources and the data of mining substation in operational process, like this, can realize the on-the-spot control flow that needs arbitrarily by program, such as going to produce corresponding analog quantity control routine according to the pressure size of gathering, be converted to the opening degree that to regulate valve in the air delivering pipeline behind the correspondent voltage signal, realized that the operating mode of air delivering pipeline is regulated automatically.

Claims

1. a mining substation analog quantity is exported regulating system, it is characterized in that it is one is the micromachine system of CPU with 89C54, form by four circuit boards, be mainboard, display board, communication board, interface board, described mainboard is the governor circuit of mining substation, single-chip microcomputer is arranged on the mainboard, display panel used in showing various parameters that substation monitors and controlled quentity controlled variable state, power supply status, communication state, communication board is used for and the central station communication, interface board is positioned at the substation wire connection cavity, is used for being connected of substation and external unit.

2. according to the described mining substation analog quantity output regulating system of claim 1, it is characterized in that it is high precision D/A conversion chip that described analog quantity is exported regulating and controlling system main circuit, the digital signal that single-chip microcomputer is exported is converted to analog voltage signal output.