Independent-powered multichannel intrinsically safe data acquisition device

The invention belongs to the technical field of a data acquisition device, and particularly relates to an independent-powered multichannel intrinsically safe data acquisition device. The independent-powered multichannel intrinsically safe data acquisition device settles problems of large faults and major accidents caused by fault operation because of no working condition monitoring capability on downwell partial mechanical and hydraulic equipment of a coal mine. The independent-powered multichannel intrinsically safe data acquisition device comprises a CPU which undergoes intrinsic safe processing, a lithium battery, a cell manager, a display screen, a clock circuit, a sensor set, a boost circuit and a multipath selector. According to an equipment scientific power consumption management method which is finished by the independent-powered multichannel intrinsically safe data acquisition device, continuous power supplying acquisition of the equipment is changed to continuous power supply acquisition; through te