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期刊论文 2

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2017 1

2016 1

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控制器局域网;发送错误计数器;发送错误计数器值估计;贝叶斯网络;脱离总线时间 1

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A low power, eco-friendly multipurpose thermoelectric refrigerator

N. Jagan Mohan REDDY

《能源前沿(英文)》 2016年 第10卷 第1期   页码 79-87 doi: 10.1007/s11708-015-0380-8

摘要: There has been an immense endeavor to mitigate global warming in spite of which it has only been worse. This paper presents the design and implementation of a low power and eco-friendly refrigeration system using the thermoelectric effect. The conventional refrigerators make use of complex mechanisms which involves synchronous operation of various units, namely the compressor, condensers, expansion valves, evaporator, refrigerant and so on. But a thermoelectric refrigerator exploits the principle of the Peltier effect, thus avoiding the utilization of these complex components. This even helps curb the release of harmful chlorofluorocarbons (CFCs) into the atmosphere which contributes to the increase in global temperature. Moreover, the temperature can be controlled and set to required values with the help of a microcontroller. Hence, this can be used both for domestic and commercial purposes. The unit does not eject any harmful gases. Therefore, the heat expelled from the unit can be tapped for heating utilities, making the use of this device versatile in its application. Thus this proposal aims not only at reducing the air pollutants by not contributing to it but also at reducing the power consumption.

关键词: low power     eco-friendly     multipurpose     TEC-12706     Peltier effect     microcontroller (P89V51RD2BN)     temperature control    

基于可观测节点信息的控制器局域网节点可靠性评估 Article

Lei-ming ZHANG, Long-hao TANG, Yong LEI

《信息与电子工程前沿(英文)》 2017年 第18卷 第5期   页码 615-626 doi: 10.1631/FITEE.1601029

摘要: 基于控制器局域网的总线技术广泛应用于网络化制造系统。网络作为系统的信息通道,其可靠性对系统的吞吐量、产品质量以及工作人员的安全至关重要。然而,由于节点内部状态的不可访问性,因此使用节点内置的错误计数器值直接评估控制器局域网节点的可靠性是难以进行的。本文提出一种新颖的控制器局域网节点可靠性评估方法,该方法使用节点脱离总线时间作为可靠性测度。基于网络错误日志和错误计数器值可访问的可观测节点信息,该方法可以估计网络中节点的发送错误计数器值。首先,本文基于分段马尔科夫链建立了估计节点发送错误计数器值的模型,该模型考虑了网络中错误分布的稀疏特性。其次,通过学习可观测节点的模型估计值和实际测量值之间的偏差,建立了贝叶斯网络以表述可观测节点的模型估计值更新机制。然后,将该更新机制应用到网络中发送错误计数器值不可访问的节点,完成其模型估计值的更新。最后,建立了节点可靠性评估方法以预测节点的脱离总线时间。为表明文中方法的有效性,进行了多组实验。实验结果表明由文中方法得到的估计值与实际观测值相一致。

关键词: 控制器局域网;发送错误计数器;发送错误计数器值估计;贝叶斯网络;脱离总线时间    

标题 作者 时间 类型 操作

A low power, eco-friendly multipurpose thermoelectric refrigerator

N. Jagan Mohan REDDY

期刊论文

基于可观测节点信息的控制器局域网节点可靠性评估

Lei-ming ZHANG, Long-hao TANG, Yong LEI

期刊论文