针对传统的温度、湿度独立测量技术,本文首先介绍了基于CMOSens 技术的数字式温湿度一体化传感器SHT75;然后着重介绍了以PIC 系列为微处理器的温湿度一体化变送器的硬件设计以及各功能的具体实现;最后提出了一种强有力的数据传送错误检测技术—CRC 校验法,使用该校验法可以极大地增加发现错误的机会。关键词:温度,湿度,一体化,SHT75,PIC,CRCTemperature and Humidity Integrated Transmitter Abstract: Aim at the traditional temperature measure and humidity measure, firstly, this paper describes the digital temperature and humidity integrated sensor SHT75 based on COMSens technology, then, mainly describes the hardware design and function achievement of temperature and humidity transmitter which uses PIC series microchip as MPU. Finally, introduces the cyclic redundancy check, and uses CRC can largely enhance the chance of detecting errors.Key Words: temperature, humidity, integrated, SHT75, PIC, CRC
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