Abstract
The authors have constructed a simultaneous multi-point illuminance measurement system to measure illuminance. The functions of this system include environment measurement, signal transmission via wired and wireless networks, and data analysis. The system contains a control PC and a control module. The control module is made up of the voltage supply, the communication part, and the measuring module, which includes the illuminance meters. Measured values are converted from analogue to digital signals, and they are transmitted to the control PC through both the wired and wireless LAN systems. The operating system of the control PC is Wmdows 2000 and the controlling software is Visual Basic 6.0. The authors will discuss the measurement results (which are now applicable) of the following illuminances: continuing long time and maximum and simultaneous multi-points.
