Automatic setting method of emergency stop lock switch position of coal mine belt conveyor

Abstract

The invention provides a method for automatically setting the position of the emergency stop lock switch of a coal mine belt conveyor, which is implemented in cooperation with the monitoring host computer connected to the CAN bus and the emergency stop lock switch. The emergency stop lock switch is provided with a power control switch. The method steps include: The emergency stop lock switch automatically selects the working mode according to the set working mode selection rules. ②The emergency stop lock switch controls the on-off of its power control switch according to the selected working mode after it is powered on. Send the working mode message, ④ emergency stop lock switch responds to the control command of the monitoring host, ⑤ the monitoring host judges whether it needs to be sorted, ⑥ the monitoring host sets the positions of emergency locking switches from No. 1 to No. n one by one. The invention has the advantages of convenient on-site construction and debugging, good interchangeability and real-time performance of the emergency stop lock switch, low cost, high reliability of CAN bus communication and strong anti-interference ability, and can effectively solve the corresponding problems existing in the prior art.

Description

technical field [0001] The invention relates to the field of automatic control of a coal mine belt conveyor, in particular to a method for automatically setting the position of an emergency stop lock switch of a coal mine belt conveyor. Background technique [0002] At present, in order to ensure the safe operation of the coal mine belt conveyor, the coal mine belt conveyor needs to have an emergency stop function along the line. Therefore, a certain number of emergency stop lock switches must be installed along the line. The emergency stop lock switch is generally installed every tens to 100 meters. Since the belt conveyor is generally several kilometers long, dozens of emergency stop lock switches need to be installed along the line in most cases. In practical applications, in order to easily obtain the specific location of the emergency stop trigger to improve maintenance efficiency, the emergency stop lock switch along the line needs to have position information (such as...

AI Technical Summary

Problems solved by technology

The method of using the dial switch setting method has the following disadvantages: first, it is inconvenient to debug on site, and it is necessary to open the lock switch shell to set it manually, which is not conducive to maintaining the protective performance of the lock switch shell; Certain, equipment interchangeability is poor

The method of polling by the monitoring host has the following disadvantages: First, it is necessary to set up a separate query signal line, which increases the number of cable cores, and the cable cost is increased due to the long line along the transport plane, which reaches several kilometers; second, the monitoring host It has been in the polling and locking state. When there are many emergency stop and locking switches along the line, the query cycle is long, and the real-time performance of the system is poor when the system is working normally. Third, the query signal is a coded pulse signal, which is susceptible to interference, and the transmission is reliable when the communication distance is long. Poor sex

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