【摘要】 介绍了基于10kV电力线的远程自动抄表系统；系统包括传输控制器、耦合设备、主调制解调器及中心站主机,具有自动抄表、负荷统计与监控、变压器及线路损耗计算、数据库管理及报表打印等功能；传输控制器采用AT89C51实现底层通信协议,并由ST7536完成信号的调制解调；系统采用帧中继技术,实现了中继传输,大大增加了通信距离；采用了多种软、硬件抗干扰措施,确保了系统工作的可靠性。更多还原

【Abstract】 An automatic meter reading system is introduced based on power line of 10kV Voltage.The system consists of transmission controller,coupling device,main modem and center station server.The system can realize automatic reading,load counting and monitoring, transformer’s wastage calculating,database management and report printing.The scheme adopts FSK modulating method.AT89C51 is a- dopted as the accessory ware to accomplish the communication management.The modulation and demodulation of signal is carried out by ST7536.The distance of communication is extended greatly by using frame relay technology.Many anti-jamming methods have been used to enhance system’s reliability.更多还原