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Position: Home > Articles > An All-digital Temperature Measuring System Used in Grain Barns Transactions of the Chinese Society for Agricultural Machinery 2001,32 (2) 90-92

大型储粮仓群全数字微机测温系统

作  者：
申晋;宋景玲;王相友;柏雪源;程卫东
单  位：
山东工程学院电气学院;山东工程学院科学技术研究院;山东工程学院研究生部;山东工程学院设备与自动化系
关键词：
温度测量;数字系统;传感器;总线式结构
摘  要：
针对目前广泛使用的粮仓微机测温系统存在的问题 ,提出了一种适于在大型粮仓群中应用的全数字微机测温系统 ,并介绍了系统的原理、结构和软件设计。该系统采用新型数字式温度传感器和单总线结构 ,使得结构简单 ,性能稳定 ,维修方便。
译  名：
An All-digital Temperature Measuring System Used in Grain Barns
作  者：
Shen Jin Song Jingling Wang Xiangyou Bai Xueyuan Cheng Weidong (Shandong Institute of Technology)
关键词：
Temperature measurements, Digital system, Sensor, Bus organization
摘  要：
Using a new type digital sensor, a new temperature measuring system, all digital system, was developed in this work. The current temperature measuring system have some technical problems unsolved as follows: 1.The effect of electromagnetism noise to temperature analogue signal in the wires can not be totally omitted although they may be not significant. 2. Parallel connection mode between sensors makes sensos cable thicker as increasing of the number of the sensors closed up in the cable, which may increase the force that pulls the cover of barns. 3.The more joints of wires leads to high trouble rate and maintaining difficulty. All of above problems can be solved in the new system with digital sensors and single bus organization. Because of its advantages of simple structure, being easy to maintain and good measuring stability, this system is an ideal alternative to the analog temperature measuring system.The principle of the system, its hardware structure and software designing were also introduced in the paper.

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