新型感温电缆及无线数据采集系统的研发 摘要 感温电缆主要用于同时检测被测物多点的温度，它的应用范围很广，不仅 可以应用于工业领域，比方接入工厂的电缆温度检测，也可以用于农业领域， 比方大棚温度的检测。传统的感温电缆主要是d solutions on temperature detection were as follow： The DS 1 8820 was selected as the temperature sensor of temperature sensing cable，because of its low cost，easy implementation and digital output，and it was welded on the shield cable by a single bus technology to construct temperature sensing cable．Good performance in terms of breaking．After a comparison of several short—range wireless communications technology,the low—cost，low-power ZigBee technology was selected as the wireless transmission technology．In terms of hardware，the YI’S CC2530 chip was selected corresponding with the power amplifier chip CC259 1 to make the wireles．s transmissions between nodes more reliable and easy to implement；Meanwhile’，in the SCM，STC89C52 was choose as the core part of acquisition cards，to carry out temperature collection and upload the data to the terminal node ZigBee．In terms of the software business：the TI’S Z．Stack protocol stack was used，which used a polling mechanism of the operating system， and the work of applicmion program was greatly simplified． Finally，the system had been sub-block tested．Firstly,the function about the collecting and uploading data of the acquisition card section were tested，and then the ability of ZigBee networks and network communication distance were detected． The results showed that satisfactory temperature detection Can be achieved in the system． Due to the limitations of the test conditions，the whole system was not tested， and the long-term power situation of the system could not be detected．Therefore， there were still many problems in this system．In future studies，this system could be made more perfect． KEY WORD：Temperature sensing cable；DS 1 8820；ZigBee；CC2530 IV 目 录 第一章绪论 1 1．1课题的背景及研究意义 ．1
