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Coal mine safety monitoring system and method based on LoRa

A monitoring system, coal mine safety technology, used in mining installations, mining equipment, earthwork drilling, etc.

Active Publication Date: 2018-11-13
SHANDONG JINGCHENG ELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical task of the present invention is to provide a LoRa-based coal mine safety monitoring system and method to solve the problem of how to combine wireless communication technology to realize the communication of the last mile underground in coal mines, and to realize the accumulation of gas in goafs and fully mechanized working faces. The problem of implementing real-time monitoring in the region

Method used

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  • Coal mine safety monitoring system and method based on LoRa
  • Coal mine safety monitoring system and method based on LoRa
  • Coal mine safety monitoring system and method based on LoRa

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Experimental program
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Embodiment

[0101] as attached figure 1 As shown, the LoRa-based coal mine safety monitoring system of the present invention has a structure including ground monitoring equipment, ground network switch 1, underground network switch 4, wired networking module 5, monitoring substation 2 and LoRa wireless networking module 8, ground The monitoring equipment is connected to the ground network switch 1 through optical fiber or twisted pair 7, and the ground network switch 1 is connected to the monitoring substation 2 through optical fiber or twisted pair 7, and the monitoring substation 2 is connected to the CAN bus 2-14 of the substation or the 485 bus 2 of the substation -23 is connected to the wired networking module 5, and the monitoring substation 2 is connected to the LoRa wireless networking module 8 through the LoRa wireless network; the ground monitoring equipment includes a computer 21, an audible and visual alarm 22, a printer 23, a data acquisition server 24, and a security monitori...

Embodiment 2

[0110] Based on the coal mine safety monitoring method of embodiment 1, the specific steps of the method are as follows:

[0111] S1. The on-site security monitoring system server 25 obtains monitoring data: the on-site wired and the environmental sensor equipment transformed through the wireless networking device 6, the equipment switch state sensor and the control equipment are actively or passively uploaded according to the inspection period set by the security monitoring system The monitoring data is sent to the monitoring sub-station;

[0112] details as follows:

[0113] S101. The substation main controller 2-1 in the monitoring substation 2 sends the inspection signal through the substation 485 bus interface 2-15, and the collector 3 forwards the inspection signal downward after receiving the inspection signal, and the substation 485 bus 2-23 The environmental sensor reports the monitoring data according to the modbus protocol (the communication protocol is not limited...

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Abstract

The invention discloses a coal mine safety monitoring system and method based on LoRa, and belongs to the technical field of safety monitoring. According to the coal mine safety monitoring system andmethod based on the LoRa, the technical problems of how to combine a wireless communication technology to realize communication of the last kilometer under a coal mine well and realize real-time monitoring of areas, such as a goaf and a fully mechanized coal mining face, where a large amount of gas is accumulated are solved. According to the adopted technical scheme, the coal mine safety monitoring system structurally comprises ground monitoring equipment, a ground network switch, a downhole network switch, a wired networking module, a monitoring substation and a LoRa wireless networking module, the ground monitoring equipment is connected with the ground network switch through optical fiber or a twisted pair, the ground network switch is connected with the monitoring substation through optical fiber or a twisted pair, the monitoring substation is connected with the wired networking module through a substation CAN bus or a substation 485 bus, and the monitoring substation is connectedwith the LoRa wireless networking module through a LoRa wireless network. The invention further discloses the coal mine safety monitoring method based on the LoRa.

Description

technical field [0001] The invention relates to the technical field of safety monitoring, in particular to a LoRa-based coal mine safety monitoring system and method. Background technique [0002] The coal mine underground safety monitoring system is used to detect the coal mine underground environmental parameters, and through the analysis and comparison of the measured environmental parameters, it provides production commanders with technical information on accident prevention, which is convenient for taking preventive measures in advance; the coal mine underground safety monitoring system system When an accident occurs, it can automatically alarm, power off and lock in time to prevent the occurrence or expansion of the accident; at the same time, it can quickly and efficiently provide disaster relief and evacuation reminders after the accident. In order to make coal mines safer and more efficient, a safety monitoring system with wide coverage of detection points and flexi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18
CPCE21F17/18
Inventor 杨锐孙华晨李华青
Owner SHANDONG JINGCHENG ELECTRONICS SCI & TECH
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