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Dotting circuit and method for mine hoist signal system

A mine hoist and signal system technology, applied in the field of mine hoist, can solve problems such as complex circuits of dotting signal devices, poor anti-interference ability, and wrong dotting signals, so as to ensure safe transportation operations, improve accuracy, and avoid distortion Effect

Inactive Publication Date: 2016-05-25
JIANGSU UNIV OF SCI & TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Due to the complex circuit of the dot signal device composed of relays and contactors, the anti-interference ability is poor, and the failure rate is high, which often causes dot signal errors and accidents.

Method used

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  • Dotting circuit and method for mine hoist signal system

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Embodiment Construction

[0024] A mine hoist signal system dotting circuit and method of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] Please refer to figure 1 , the mine hoist signal system dotting circuit provided by the present invention is made up of three parts of optocoupler isolation module 1, signal processing module 2 and signal output module 3, specifically as follows:

[0026] 1. The optocoupler isolation module 1 is used to isolate and convert the external dot signal input from the outside into an effective voltage signal for the single-chip microcomputer.

[0027] In this embodiment, the optocoupler isolation module 1 is composed of two PS2801-4 optocoupler chips A7-1 and A7-2, and the external dot signal Q0.0-Q0.3 (that is, the external 24VPLC signal) is correspondingly connected to the optocoupler Pins 1, 3, 5, and 7 of the chip A7-1 and pins 2, 4, 6, and 8 of A7-1 are all connected to the external M terminal aft...

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Abstract

The invention provides a dotting circuit and method for a mine hoist signal system. The dotting circuit comprises a photoelectric coupling isolation module, a signal processing module and a signal output module, wherein the photoelectric coupling isolation module comprises two photoelectric coupling chips, external dotting signals are correspondingly connected to the two photoelectric coupling chips, the signal processing module is a single-chip microcomputer with a built-in storage, and the two photoelectric coupling chips are connected to a signal input port of the single-chip microcomputer through a triode; the signal output module comprises a digital display tube, a plurality of LED indication lamps, a voice chip and a loudspeaker; the digital display tube is connected with a corresponding signal output port of the single-chip microcomputer through a latch, the LED indication lamps and the voice chip are directly connected to the single-chip microcomputer, and the loudspeaker is connected to a corresponding signal output port of the voice chip through a signal amplifier. According to the technical scheme, the dotting signals can be accurately displayed and memorized and phonetically output.

Description

technical field [0001] The invention belongs to the technical field of mine hoists, and in particular relates to a dotting circuit and method for a signal system of a mine hoist. Background technique [0002] Mine hoists are the main means of transportation connecting the mines of non-ferrous metals and black mines, and underground. They are mainly used for lifting coal, metal ore and non-metallic ore, transporting materials, lifting personnel, lowering materials, tools and equipment, etc. The mine hoist signal system is an important part of the mine hoist, and the operation of the hoist depends entirely on the signal of the signal system. The reliability and accuracy of the mine hoist signal system is an important guarantee for mine hoisting and safe transportation. Article 393 of the "Coal Mine Safety Regulations" stipulates that each lifting device must be equipped with a signal device sent from the bottom of the well to the wellhead signaler and from the wellhead signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B19/06
CPCB66B19/06
Inventor 庞科旺梁博宁鲁卿
Owner JIANGSU UNIV OF SCI & TECH
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