| The construction of10Wp solar chimney power generationapparatuswith specifically designed data acquisition and remote transmissionsubsystem is established for the systematical study of solar chimney powergeneration technology. This specifically designed system will transmit thegeneration apparatus’ multi-point temperature,pressure, air flow rate as wellas the turbine torque, justtogether with the solar optical power, generationsystem momentary power and voltage (current)effective value, and someother real-time information to the laboratory for storing. The user can directlychange data to Matlab Workspace variable. We believe the transmissionsystem may lay a good foundation for the researching and designing ofpracticalsolar chimney power generation apparatus.This essay is to illustrate the overall technical scheme of10Wp solarchimney power generation apparatus’sdata acquisition and remotetransmission subsystem. We use the WLANto realize real-time informationremote transmission, ADO.net technology to store information in the SQLdatabase. We transform a handheld solar meter into the on-line solar powersensor so that to achievereal-time solar power measurement and obtain quickmeasurement of AC signal effective value throughcontrollingthe input rangeof measurement chip. An over sample method is adapted to getmomentarypower measurement. Finally, make a variable highvoltage AC signalsourcefor calibration our measurement circuit.At present, all modules have been completed and debuggednormally;thevarious indexes are up to our designed expectation. |