【摘要】 介绍了一种新型多功能电子式电量计量系统实现远程无线抄表的原理和方法。系统的下位机为 DSP 系统,与上位机计算机之间采用 RS232C串行通信,中间为无线传输介质。文章重点介绍了无线通信的可靠性问题,给出了减少误码的一种简单编码方法和数据纠错的一种算法。实践表明,系统的无线抄表正确可靠。更多还原

【Abstract】 The paper introduces the principle and method to realize remote meter reading for a new type of multi-function electronic electrical quantity meter.The metering system is designed based on DSP,which communicates with computer through wireless RS232C.The reliability of wireless communication is discussed in the paper.A simple decoding way to reduce miscarriage proportion and an algorithm of data correction are stated.The practice shows that the wireless meter reading is correct and reliable.更多还原