Start-up system of laser methane sensor with peak shifting opening function

Abstract

The invention discloses a start-up system of a laser methane sensor with a peak shifting opening function. The start-up system comprises a plurality of laser methane sensors, a power supply bus, a plurality of power supply modules, a plurality of switches K0 and random number modules, the number of the laser methane sensors, the power supply modules, the switches K0 and the random number modules is the same, one end of the power supply bus is connected with a power supply, the other end is connected with all switches K0 in parallel, each switch K0 is connected with one power supply module, onepower supply module is connected with one laser methane sensor, one random number module is connected between each laser methane sensor and the switch K0, the problem that the sensors on the bus cannot be normally started up since the plurality of sensors are connected onto one power supply and when the sensors are started up simultaneously, and the instantaneous start-up current is greater underthe condition that an intrinsic safety power supply is used in a coal mine and the power supply distance is long and when a plurality of sensors which are hung on the same power supply bus are started up simultaneously can be solved.

Description

Technical field [0001] The invention relates to an online instrument detection technology, in particular to a starting system of a laser methane sensor with a peak shift opening function. Background technique [0002] The startup method of the existing mining sensors is direct startup or hardware current limiting soft startup, without other processing, so there are the following defects, mining sensors generally consist of the main CPU module, display module, communication module, sound and light alarm module and other key parts composition. When the mining sensor is powered on, the various functional modules of the equipment are turned on together and start to work. However, due to the inherent characteristics of the hardware circuit of the functional module such as charging, preheating, and uncontrolled level logic, the transient current is too large and the peak power consumption is superimposed at the moment of power-on, which makes the sensor unable to start normally in the...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a start-up system for a laser methane sensor with a peak-staggered start-up function, so as to solve the problem of using an intrinsically safe power supply in a coal mine and having a long power supply distance. Similarly, when multiple sensor devices are connected to the same power bus to start When multiple sensors are connected to one power supply, the instantaneous starting current will be even greater when starting at the same time, resulting in the problem that the sensors on the bus cannot start normally.

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