Key Technology Research On Spot-inspection System For Equipment Fault Diagnosis

With the development of equipment management theory based on fault diagnosis technology, it has gradually applied to the equipment management from large-scale to the small equipment.Therefore, the spot-inspection system towards equipment fault diagnosis will play a major role in the management of many dispersed non-critical equipment. Based on enterprises's network and database platform,A network-based platform for spot inspection system was build. By check the devlopment of spot-inspection instrument at home and abroad,we designed the instrument which had the function of portable data acquisition,fault diagnosis and equipment management.The spot-inspection instrument used the high-performance ARM chip as the instrument's hardware platform,and embedded linx operating system as its software platform.This paper contains mainly of the following:(?) The system function is analyzed. a network-based equipment spot inspection System.And the overall framework of the system and its work flow was described.(?) The terminal instrument for spot inspection is Based on ARM and embedded linux, The spot inspection instrument platform is build.The instrument's hardware and software is designed.Hardware modules are designed based on ARM-Based System on chip, focus on the System storage module, human-computer interaction (LCD display, touch screen and keyboard),power management and the USB comunication interpace.(?) The software system of the spot-inspection instrument was Constructed.The software system includes an embedded linux kernel, the peripheral device drivers, and GUI-based application.(?) The instrument takes Radio Frequency Identification(RFID) technology into use. In this paper, RFID System which based on EM4905 reader is developed including the interface circuit and the hardware drivers.(?) Data acquisition module of the instrument was devsigned and researched. Mainly about the vibration data acquisition module and the infrared temperature measurement. Based on the analysis of the data acquisition module's work principle, the module's drivers and the applications based on the multi-threading technology were developed...