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该文介绍一种以微处理器和微型计算机为中心的无线温、湿度遥测遥控系统,它是一个无线多址通信系统,各分机只和主机联系,分机间不直接相连。系统信息量不大,但能在无人值守情况下长期稳定工作。系统采用以8085微处理器及其接口电路构成分机和主机值班机、以 APPLE-ⅡE 系统机作为主机中心的1:N 无线遥测遥控方案。分机数量 N 可用软件指定,1≤N≤63。温度范围-20～+60℃.精度±0.5℃;温度范围10%～99%,精度±4%。调制方式为 PCM-FSK-FM,各分机采用码分多址。介绍了硬件和软件。
This paper introduces a microprocessor-based and microcomputer-centric wireless temperature and humidity telemetry remote control system, which is a wireless multiple access communication system, the extension only contact with the host, extension is not directly connected. System information is not large, but can be long-term stability under unattended conditions. System uses the 8085 microprocessor and its interface circuit composed of extension and host on duty to APPLE-Ⅱ E system host as a host of 1: N wireless telemetry remote control program. The number of extension N can be specified by software, 1≤N≤63. Temperature range -20 ~ +60 ℃. Accuracy ± 0.5 ℃; temperature range of 10% to 99%, accuracy ± 4%. Modulation method for the PCM-FSK-FM, the extension using code division multiple access. Introduced the hardware and software.