Two-way Transmission System of Fully Mechanized Coal Mining Face Data and Control Command Data

Abstract

The invention provides a two-way transmission system for coal mine fully mechanized mining data and control command data. The two-way transmission system is a 'full duplex' mode power cable carrier communication system which uses dual bands and double input / output interfaces. An AC-1140 V or AC-3300 V coal mining machine power cable is used, and is used for two-way transmission of the coal mine fully mechanized mining data and the control command data. The two-way transmission system comprises two accesses which are both in one-way communication, and is composed of a dual-CAN processing module, a DSPIC single chip microcomputer first core module, a work mode selecting module, an FPGA second core processing module, a DAC output buffer circuit, an ADC input buffer circuit, a dual-DAC signal regulating circuit module, a dual-ADC signal regulating circuit module, a signal regulating circuit selecting module and a power carrier high voltage coupling circuit module. Two one-way communication modes of a 'main sending station' with 'main sending and secondary receiving' integrated and a 'secondary sending station' with 'secondary sending and main receiving' integrated are configured for the two-way transmission system.

Description

technical field [0001] The present invention relates to comprehensive mechanized coal mining face in coal mine (referred to as fully mechanized mining face), specifically the transmission of fully mechanized mining face data and control commands, more specifically the sensor data and control commands of the shearer safety monitoring system of coal mine comprehensive coal mining face Two-way transmission system of data. Background technique [0002] Due to the continuous improvement of the unit yield level of the fully mechanized mining face in modern mines, the requirements for the technical performance of the shearer are also getting higher and higher, and the installed power of the shearer is also increasing, and it is more complicated. The high-standard working face equipment is to achieve A reliable guarantee for high and stable production and high efficiency. In order to ensure that the shearer operates in the best condition, reduce the failure rate of the shearer, and...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of timely mutual transmission of data from the high-power shearer safety monitoring system between the comprehensive coal mining face and the tunnel, overcome the shortcomings and shortcomings of the traditional multi-core wire control method and the serious multipath fading of the wireless communication method, and overcome the single-frequency band The half-duplex working mode can not transmit two-way transmission at the same time and the speed is slow, so that the data of the monitoring system can be efficiently and quickly transmitted to the trough, and at the same time transmit the control commands of the ground or the trough to the shearer. The invention provides a Two-way Transmission System of Fully Mechanized Coal Mining Face Data and Control Command Data

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