工业控制中,通过PLC梯形图语言来实现复杂的控制算法比较困难,并且常见PLC内部存储器容量较小,制约了先进控制算法在PLC上的应用。结合Matlab强大的计算能力和灵活的编程设计,设计基于OPC(OLE for Process Control)通讯技术的Matlab7.0...工业控制中,通过PLC梯形图语言来实现复杂的控制算法比较困难,并且常见PLC内部存储器容量较小,制约了先进控制算法在PLC上的应用。结合Matlab强大的计算能力和灵活的编程设计,设计基于OPC(OLE for Process Control)通讯技术的Matlab7.0与PLC的控制平台,可方便实现先进控制算法在PLC上的应用。使用该控制平台,Matlab实施模糊自适应PID控制算法,B&R PLC进行实时数据采样和输出,实现了对温度对象的控制,取得了良好的控制效果。展开更多
At present,China's agricultural product trade is facing the development dilemma. The trade deficit is expanding,market and product structure is irrational,and the Chinese agriculture products often encounter trade...At present,China's agricultural product trade is facing the development dilemma. The trade deficit is expanding,market and product structure is irrational,and the Chinese agriculture products often encounter trade barriers. " B&R" initiative provides a rare opportunity for the development of agricultural products in China. It is necessary to seize this opportunity to change idea and innovate upon mechanism so as to increase the added value of exported agricultural products through various channels. There is also a need to develop electronic commerce,and make full use of interconnectivity and trade facilitation in " B&R" initiative to develop the international trade of agricultural products.展开更多
Expediting is becoming more essential with the increase of engineering construction projects by Chinese companies abroad.According to Xinhua News Agency,from 2013 to 2018,Chinese enterprises’direct investment in coun...Expediting is becoming more essential with the increase of engineering construction projects by Chinese companies abroad.According to Xinhua News Agency,from 2013 to 2018,Chinese enterprises’direct investment in countries along the Belt and Road(B&R)exceeded USD 90 billion,with an average annual growth rate of 5.2%.For countries along B&R,the value of Engineering Procurement Construction(EPC)projects signed with Chinese companies exceeded USD 600 billion,which is an average annual increase of 11.9%.展开更多
A thematic session on people-to-people connectivity of the Belt and Road Forum for International Cooperation was hosted by International Department of CPC in Beijing on May 14-15.In his keynote speech delivered at the...A thematic session on people-to-people connectivity of the Belt and Road Forum for International Cooperation was hosted by International Department of CPC in Beijing on May 14-15.In his keynote speech delivered at the opening ceremony of the forum,President Xi pledged that China will invite 2,500young scientists from Belt and Road countries to conduct short-term research projects in China,train 5,000 scientists,engi-展开更多
SAC organized a seminar on equipment manufacturing standardization for the standardization officers in countries along the Belt and Road from June9 to 29 to further facilitate the connectivity of policies,rules and st...SAC organized a seminar on equipment manufacturing standardization for the standardization officers in countries along the Belt and Road from June9 to 29 to further facilitate the connectivity of policies,rules and standards and better serve the national Belt and Road Initiative.展开更多
文摘工业控制中,通过PLC梯形图语言来实现复杂的控制算法比较困难,并且常见PLC内部存储器容量较小,制约了先进控制算法在PLC上的应用。结合Matlab强大的计算能力和灵活的编程设计,设计基于OPC(OLE for Process Control)通讯技术的Matlab7.0与PLC的控制平台,可方便实现先进控制算法在PLC上的应用。使用该控制平台,Matlab实施模糊自适应PID控制算法,B&R PLC进行实时数据采样和输出,实现了对温度对象的控制,取得了良好的控制效果。
基金Supported by Outstanding Young Teacher Program of North China University of Technology(XN132)
文摘At present,China's agricultural product trade is facing the development dilemma. The trade deficit is expanding,market and product structure is irrational,and the Chinese agriculture products often encounter trade barriers. " B&R" initiative provides a rare opportunity for the development of agricultural products in China. It is necessary to seize this opportunity to change idea and innovate upon mechanism so as to increase the added value of exported agricultural products through various channels. There is also a need to develop electronic commerce,and make full use of interconnectivity and trade facilitation in " B&R" initiative to develop the international trade of agricultural products.
文摘Expediting is becoming more essential with the increase of engineering construction projects by Chinese companies abroad.According to Xinhua News Agency,from 2013 to 2018,Chinese enterprises’direct investment in countries along the Belt and Road(B&R)exceeded USD 90 billion,with an average annual growth rate of 5.2%.For countries along B&R,the value of Engineering Procurement Construction(EPC)projects signed with Chinese companies exceeded USD 600 billion,which is an average annual increase of 11.9%.
文摘A thematic session on people-to-people connectivity of the Belt and Road Forum for International Cooperation was hosted by International Department of CPC in Beijing on May 14-15.In his keynote speech delivered at the opening ceremony of the forum,President Xi pledged that China will invite 2,500young scientists from Belt and Road countries to conduct short-term research projects in China,train 5,000 scientists,engi-
文摘SAC organized a seminar on equipment manufacturing standardization for the standardization officers in countries along the Belt and Road from June9 to 29 to further facilitate the connectivity of policies,rules and standards and better serve the national Belt and Road Initiative.
