| In this paper,we use the form of wireless communication,using now relatively mature GPRS communication mode,build a set of lower cost,more stable data transmission,can be used with very complex environment based on ARM and general wireless grouping service of automatic meter reading terminal equipment.This system not only can maximize the traditional manual meter reading way of the problems of low efficiency and precision is poor,and to facilitate management of related department.Both can save manpower material resources,improve the work efficiency of the whole and can provide more real for peak power scheduling of raw data,is advantageous for the power sector.This paper research and design based on ARM and general wireless grouping service terminal of the meter reading device,is the main use of technology of GPRS network communication technology,embedded technology,etc.,designed the system hardware structure,and analyses its basic working principle.This system hardware module mainly include:power supply circuit module,STM32F103 master control module,display circuit module,a storage unit module,the RS-485 communication module,clock module and GPRS module circuit,etc.The software function of this system mainly includes:GPRS transmission procedure,equipment parameters change,the storage device to read and write operations,LCD display,real-time clock,etc.Program module all use C language to write,first of all introduces the whole software process,then for each module is introduced.Finally,the paper for integrated debugging of the system,the use of function generator and other equipment to produce the necessary reference signal,the data obtained will be calibrated,and after correction of the overall error within 1%.And the final debugging structure clear,the system can well realize the expected function,have the advantage of a very powerful,provides a very convenient and effective form of meter reading.. |
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