| 摘要 |
A fail-safe electrical control system in the form of a sensor loop 24 is provided. The sensor loop 24 includes any number of sensor units 22 coupled in series. Each sensor unit 22 includes a local power source 26, a local sensor 14, and a local indicator controller 30. The local power source 26, local sensor 14, and local indicator controller 30 are coupled in series within the sensor unit 22 and the sensor loop 24 to form a closed circuit 40 that does not require a central controller or the performance of loop configuration activities. The local power sources 26 distributed throughout the sensor loop 24 within the sensor units 22 are all isolated from the earth. In one preferred embodiment, the sensor loop 24 controls the movement of solar collectors 12 into wind stow positions when high wind 16 conditions occur. |
