科研之友
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摘要
This paper presents a novel light source tracing system, which is comprised of a light-tracing board, with four photo-sensors of different incline angles, correspondingly disposed on its four edges, which are adjustable according to the movement range of the light source in order to achieve light-tracing purposes. This system introduces the algorithm of four-edge-sensors with servo motors in each site to improve sensor%26apos;s sensitivity. The measurement values of light perception can be feedback to the programmable logic controller by wireless transceiver module. After proportional-integral-derivative operation, the system can obtain the situation of light source. In a normal mode, the light source movement range is large, the range of the incline angle of the light sensors are also set to large to obtain wide detection angle. But in a locking mode, the incline angle of the light sensing plane decreases, thus, the measurement range reduces, and the sensitivity is higher.
- 出版日期2013-11-1
