Integrated Backup Protective Equipment Of Mine Hoister

This paper, at first, has discussed mine hoister and its safety, and pointed out the necessity of backup protective equipment of mine hoister. Then, the paper has introduced the concept of virtual instrument, and has explained the structures of hardware and software of virtual instrument. Also LabVIEW, programming software of virtual instrument, has been introduced. This paper has accounted for backup protective equipment of mine hoister, and by comparing existing equipments; a project of backup protective equipment of mine hoister which is based on virtual instrument has been presented. Principle of the integrated backup protective equipment for mine hoister is: to use DAQ to acquire signals, and then process these signals by software program, judge whether to give an alarm, the processed data is displayed, saved and inquired. In the paper, for the experiment of integrated backup protective equipment for mine hoister, a experimental analogic equipment has been introduced, also its analogic principle has been explained.This paper's emphasis is to analyze and explain the design of hardware and software of integrated backup protective equipment for mine hoister. The hard core of this equipment is the design of software. The progress of design of hardware has been explained on the facts of the structure of software, program flow and functions of backup protective equipment. Then modules of program has been explained, also block diagrams and flowcharts has been given.This integrated backup protective equipment for mine hoister which is based on virtual instrument has been proved by experiment to achieve the requirement of design. The equipment, which has a clear and amicable interface and great expansibility, provides the operation of mine hoister with safeguard.