| 摘要 |
[Problem] To provide a wireless sensor device with which satisfactory detection accuracy is obtained, even without stringent management of the wiring impedance, line length, and other parameters. [Solution] Provided is a wireless sensor device (1) for detecting movement of a detection target, on the basis of a transmission signal and a reflection signal, wherein the device is provided with: a plurality of sensor units (10) for outputting a detection signal, having a transmission/reception antenna for emitting a transmission signal and receiving a reflection signal, a signal generation circuit for generating a transmission signal, and a detector circuit into which are inputted the reflection signal and part of the transmission signal; a signal processing unit (20) for carrying out signal processing of the detection signals outputted by the plurality of sensor units (10); and a controller (30) for controlling the emission timing of transmission signals emitted by the plurality of sensor units (10). The controller (30) controls the transmission signal emission timing in such a way that during a time slot in which one of the sensor units (10) is emitting a transmission signal, the other sensor units (10) do not emit transmission signals. |
