| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio sensor device capable of easily discriminating between noise and data on a receiver side even when a low-duty signal is transmitted with low output. SOLUTION: When a series of data including sensor data 30 is intermittently transmitted, a preamble code 10, a synchronizing code 20, the sensor data 30, and a CDC code 40 are transmitted in this order. Consequently, communication tolerant of noise is enabled. Namely, the radio sensor device normally needs to transmit data with low duty and low output, but a transmitted signal is embedded in noise. In the present invention, however, the preamble code 10 and synchronizing code 20 are transmitted in this order before the sensor data 30 are transmitted, so even the low-duty/low-output signal can have the sensor data sufficiently searched for. COPYRIGHT: (C)2007,JPO&INPIT
|
