DS18X20在多点测温中的编码优化技术

Optimization of the addressing code of DS18X20 at measuring multiple temperatures

运用数字式传感器DS18X2 0采取单信号传输线进行多点测温的关键技术是传感器的地址编码问题。根据器件结构特征 ,借用DS18X2 0内部资源写入十进制代码取代传感器固有的 6字节序列号 ,可从根本上简化众多传感器的识别 ,而专用编码器是实现这一技术不可缺少的部分。实践证明这一技术的工作机理。

It is critical technology to encode the digital sensor DS18X20 that measure multiple temperatures with the 1-wire bus. By the source of DS18X20, decimal code are coded which instead the 6 bytes of serial number. It makes very simple to distinguish a multiplicity of sensors. Encoder is indispensable to realize the technology. The principle and circuit and programming of the technology attested by practice are collecting and hold true.