| 摘要 |
The system consists of an infrared transmitter and a receiver with filter, which is combined with a microwave transmitter and receiver. The signals of the infrared and microwave receivers are processed by means of networks, which are understood to be one or more comparators and one or more gates/flip flops, and logically combined with one another via one or more gates. At the output of the gate or gates, status indicators are arranged. The individual status indications are checked for their logical status correctness by means of an XOR gate. The result, in turn, can be displayed via a separate status indicator. <IMAGE> |
