Title :
10-channel temperature controller-recorder for semiconductor air-conditioner
Author :
Liu, Xiaoguang ; Wu, Shaozhong ; Qi, Yaqing ; Wang, Fengyue
Author_Institution :
Tianjin Lantian High-Tech Power Sources Joint-Stock Co. Ltd., China
Abstract :
This paper introduces a kind of 10-channel temperature controller-recorder for semiconductor air-conditioners of storage-transport containers. The core-controlled unit is the MCU-AT89C5 . DS1820 digital thermometers are used for temperature sampling and circuit checks. A micro-stylus printer prints values of the each point temperature and the working state timing. The output signal of the MCU through a photo-coupler drives two relays to control the working mode (cooling/heating) and the function state. The controlled program of the MCU is adopted C51 senior language and assembles language. 1-WireTM digital thermometers that predigest the external device and cable of the sensors greatly reduce cost and improve reliability
Keywords :
air conditioning; computerised instrumentation; cooling; semiconductor device packaging; temperature measurement; thermal analysis; thermoelectric devices; thermometers; 10-channel temperature controller-recorder; circuit checking; micro-stylus printer; semiconductor air-conditioner; storage-transport containers; temperature sampling; Assembly; Circuits; Containers; Cooling; Digital relays; Heating; Printers; Sampling methods; Temperature control; Timing;
Conference_Titel :
Thermoelectrics, 2001. Proceedings ICT 2001. XX International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-7205-0
DOI :
10.1109/ICT.2001.979934
