Multi-parameter sensor setup in survival chambers for underground shelters

Abstract

The invention relates to a multi-parameter sensor device used in the survival cabin of underground shelters in coal mines and non-coal mines, which includes: a multi-parameter sensor and a weak signal amplification processing module, a master-slave dual processor module, and a communication module , sensor calibration module, LCD display module and explosion-proof structure shell. The invention is installed in the cabin of the underground refuge to collect the gas concentration, temperature, humidity and pressure data of CO, CO2, CH4 and O2 in the cabin in real time, and transmit the data to the monitoring and control of the underground refuge through the RS232/RS485 serial port or the CAN bus interface system. The multi-parameter sensor device of the present invention can be calibrated in two ways, online or offline, and has a master-slave dual-processor working mode, so the stability and reliability of the device can be guaranteed. In addition, its LCD display module and The explosion-proof shell can also ensure the convenience and safety of its operation.

Description

technical field [0001] The invention relates to the technical field of instruments, in particular to a multi-parameter sensor device used in survival cabins (or survival rooms) of underground shelters in coal mines and non-coal mines. Background technique [0002] At present, the widely used methane (CH4) sensors, carbon monoxide (CO) sensors, carbon dioxide (CO2) sensors, oxygen (O2) sensors, temperature sensors, humidity sensors and pressure sensors used in coal mines and non-coal mines are independent Each sensor device is used to measure the concentration or parameter of a gas, and has LED display function and serial communication port at the same time. These sensor devices play a huge role in the safety monitoring system in this field. However, for underground shelters that play an important role in underground emergency avoidance systems in coal mines and non-coal mines, there are still the following problems in the application of these sensors: [0003] 1. For underg...

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Problems solved by technology

[0003] 1. For underground shelters in coal mines and non-coal mines, it is necessary to simultaneously control methane (CH 4 ), carbon monoxide (CO), carbon dioxide (CO 2 ), oxygen (O 2 ) concentration, as well as temperature, humidity and pressure and other parameters, so it is necessary to set up multiple sensor devices in the limited area of ​​the survival cabin of the underground shelter at the same time, and there must be a problem of how to reasonably install the multiple sensor devices in this way

[0004] 2. Since multiple sensors need to be installed in the survival cabin of underground shelters in coal mines and non-coal mines at the same time, and each sensor has an LED display and a communication serial port, the data of the monitoring and control system of the underground shelter There are many transmission interfaces, the system is complex, and it will also increase the power consumption of underground shelters

[0006] It can be seen that the sensor device used in the survival cabin of the existing coal mine and non-coal mine underground shelter obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously related. The problem that the industry is eager to solve

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