发明名称 |
WIRELESS SENSOR DEVICE |
摘要 |
A wireless sensor device including a sensor configured to sense a target object and provide a sensor signal of varying levels indicative of condition of the target object, a signal processing circuit configured to amplify the sensor signal and provide an amplified electric analog signal, and a detection circuit configured to receive the amplified analog signal and provide a detection output when the electric analog signal goes beyond a predetermined detection threshold. A radio transmitter transmits a radio detection signal in response to the detection output. A power supply is configured to provide an electric power to the signal processing circuit and the radio transmitter and includes a power generating element which converts an external energy into the electric power to be accumulated in the power supply. A controller activates the radio transmitter only in response to the detection output, permitting the radio transmitter to generate the radio detection signal. |
申请公布号 |
KR20070047234(A) |
申请公布日期 |
2007.05.04 |
申请号 |
KR20067015304 |
申请日期 |
2006.07.28 |
申请人 |
MATSUSHITA ELECTRIC WORKS, LTD. |
发明人 |
FUKUI SUGURU;HATATANI TERUKI;TAKADA YUJI |
分类号 |
G08C17/00;G08B13/194;G08C17/02 |
主分类号 |
G08C17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|