"基于单片机的自动无线抄表系统设计及应用研究"

Long-term practice has shown that the traditional manual meter reading method used by water and electricity supply departments for user electricity meters, water meters, and gas meters is time-consuming, laborious, lacking in accuracy and timeliness, which is not conducive to the supply department for more in-depth analysis and management decision-making. In the process of industry informatization, the automation of household meter data reading has very significant significance. This design comprehensively designs the wireless meter reading system from two major aspects: hardware and software. The hardware design includes the design of the single-chip microcomputer minimum system, data display module, data acquisition module, signal transmission module, and serial communication components. The software design includes the main program, display program, pulse counter subprogram, keyboard program, and serial communication subprogram. Through the coordinated work of hardware circuits and software design, all functions required by the system are completed. The hardware circuit uses the CC400 single-chip integrated wireless transceiver chip and 89C51 single-chip microcontroller as the core, supplemented by appropriate peripheral circuits. The handheld device has keyboard and LED display functions, and can transmit the collected data to the computer through the serial port. The software design uses assembly language to program the entire system. This system is suitable for wireless meter reading of electricity, gas, and heat meters. By building an automatic meter reading system, power companies and property management departments have greatly improved their work efficiency and economic benefits. It fundamentally solves the troubles brought to users and meter readers by household meter reading and billing, and also avoids unnecessary disputes. Keywords: single-chip microcontroller; CC400; LED