The Research Of Pressure Measurement System Based On ARM

The pressure detection is concerned to be a pivotal role and widely used in the process of productions of mining, metallurgy ,manufacture,chemical engineering, pharmaceuticals and water supply, etc. Meanwhile, it is regarded as necessary way of modern production management, which is gradually paid great attention, especial in the technology of pressure detection and instrumentation. Hence, the R&D of intelligent pressure detection system is significantly important and indispensable for mining security.The pressure detection system is designed as the organic combination of ARM processor and related instruments. The core of ARM processor is based on LPC2294. The basic progress of system is simply depicted as follows: the pressure signals are converted into the voltage signals by using the resistor converter, then the voltage signals are amplified and transmitted to LPC2294 for A/D transformation. All processed data from each system is transferred to Host computer for saving and displaying. The fundamental features of the pressure detection system are: detection range: 1~60Mpa; data collection every 5 minutes; the data transferring function is fulfilled by CAN bus which is standardized as 250Kbps. The ultimate data, finally, are saved in computer database, which are read from the serial port of Host computer. The console is designed with the software of Labview, NI company, and the serial port receive function is coded with VISA model in Labview; the database is created by the Access and Labsql.The first chapter of the thesis is an overview of the origin and development of the pressure detect, and the situation at home and abroad; chapter II focuses on the overall design and method of thinking; Chapters III, IV are about of the hardware circuit, software development environment and related software process; the fifth chapter describes a simple PC-software development language, and a simple introduction of the upper part of the software. Chapter VI is the work summarized, and the direction of the pressure detect development on my own opinion in future.