The Real-Time Monitoring System Of Hydrogen Parameters Based On ARM And CPLD

Improving the efficiency of dynamotor is the very important in the modern construction of power, hydrogen is one of kind of high quality thermal conductivity cooling medium, it is used widely in dynamotor. Hydrogen can improve the efficiency of dynamotor, but it is one of kind of flammable explosive gas, so it is essential condition of guarantee to the security and the high effective output of electric power system, so it is significance to monitoring the parameter of hydrogen.This paper research and develop the monitoring system of hydrogen parameter based on the ARM&CPLD, It briefly analyzes the necessity of monitoring the hydrogen Parameters and The development status of monitoring system about the electronic Power then a real-time Monitoring system of regenerator hydrogen Parameters is presented, which applies the Configurations radio-communication SMS(short message system), Modbus Protocol and RS485 bus, SD memory card mass storage in the design of the system, the design choose the power ARM series processor as the core, and the systerm integrated CPLD technology , to solve the question that the lack of I/O number and driving SD memory card, the systerm expand I/O use a CPLD, The assignment of addresses to the every expand I/O, ARM can control bus to drive output level of expand I/O, SD card(secure digital memory card), is a new kind of memory facility based on semi-conductor flash memory, it is low cost and high capacity, the history of data storage of system used SD card, the system do not drive SD card directly, but the driving element used CPLD that is ATLERA'MAXII series MAXII1270 CPLD, MAXII1270 has 1270 element, the scheme not only improve the speed of read/write, swell the portability of program but also, reduce the step of driving by microcontroller and release the burden of ARM.In the article, the wireless communication of System used radio-communication SMS (short message system) of GSM (globe system mobile), designe the GSM module hareware and software, realizing the alarming data wireless communication. The cable communication of system uses RS485 bus based on Modbus Protocol. Two communications way can make system more convenient and agility, at last the paper analyses the lack of system and put forward the improvement.