Distributed remote virtual instrument for air quality monitoring
QI Jing-yao · Ha'erbin gongye daxue xuebao · 2005
A remote virtual instrument system was designed for air quality monitoring,enhanced with DataSocket capability based on TCP/IP.The signal-conditioning block has been reduced in cost and dimensions through the use of Labview.The measured variables are SO_2 concentration、NO_x concentration and TSP concentration.The philosophy behind our DataSocket-accessed remote air quality monitoring is based on a client/server computer configuration.The server situated near the power plant sends command signals received from data acquisition card to the client.The client remotely receives the signals by the form of waveform.Our approach is distinct from others since it can offer more flexibility and responsibility to the client-side since the remote user compiles and executes locally controller.The whole system supports several types of computers,operating systems and communications hardware.