Self-diagnosis ethylene sensor for coal mine and self-diagnosis method

Abstract

The invention relates to a self-diagnosis ethylene sensor for a coal mine and a self-diagnosis method. According to the self-diagnosis ethylene sensor, an intrinsic safety power supply in an intrinsic safety shell is electrically connected with a battery conversion module which is electrically connected with a central processing unit; the intrinsic safety power supply is also sequentially and electrically connected with a power supply conversion module, an ethylene detection circuit and the central processing unit; the power supply conversion module is further electrically connected with an output port reusing circuit; the battery conversion module is electrically connected with the power supply conversion module; the central processing unit is further connected with an infrared remote controller in an infrared manner and is electrically connected with a display module; the central processing unit is electrically connected with the output port reusing circuit for controlling an RS485 communication module, a frequency output end and a current output end. The self-diagnosis ethylene sensor is characterized by being provided with the ethylene detection circuit. According to the self-diagnosis ethylene sensor for the coal mine and the self-diagnosis method, the integration of current type, frequency type and RS485 bus type output multi-system communication manners is realized; the anti-jamming capability is improved by the self diagnosis of open-circuit, short-circuit and communication signal fault states of current type, frequency type and RS485 bus type output circuits; the signal output is stable; manual and remote-control zero point and concentration sensitivity calibration is convenient.

Description

technical field [0001] The invention belongs to the technical field of sensors for coal mines, and relates to an ethylene sensor for coal mines, in particular to a self-diagnosing ethylene sensor for coal mines and a self-diagnosis method. Background technique [0002] At present, my country's coal mine safety monitoring system has made great progress, but there are still some problems that need to be solved urgently. Factors such as backwardness, short sensor adjustment cycle, low intelligence, heavy maintenance workload, and personnel misoperation seriously affect the reliability of the coal mine safety monitoring system. In particular, the existing ethylene sensors for coal mines have no substantive self-diagnosis function for faults, no self-diagnosis function for the degree of component damage, and whether the power supply is working normally; Interrupt technical issues that generate false positives, etc. At present, the different systems adopted by different mines wil...

AI Technical Summary

Problems solved by technology

[0002] At present, my country's coal mine safety monitoring system has made great progress, but there are still some problems that need to be solved urgently, especially the backwardness of the information collection and transmission technology of the coal mine safety monitoring system leads to the following problems, which are affected by false alarms, monitoring blind spots, collection methods The reliability of the coal mine safety monitoring system is seriously affected by factors such as backwardness, short sensor adjustment cycle, low degree of intelligence, heavy maintenance workload, and personnel misoperation.

In particular, the existing ethylene sensors for coal mines have no substantive self-diagnosis function for faults, no self-diagnosis function for the degree of component damage, and whether the power supply is normal; Interrupt technical issues that generate false positives, etc.

At present, the different systems adopted by different mines will cause mismatches when selecting, and the self-diagnosis function of the ethylene sensor is not perfect

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