发明授权
- 专利标题: Sensor node
- 专利标题(中): 传感器节点
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申请号: US11779020申请日: 2007-07-17
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公开(公告)号: US07696867B2公开(公告)日: 2010-04-13
- 发明人: Kiyoshi Aiki , Shunzo Yamashita , Takeshi Tanaka
- 申请人: Kiyoshi Aiki , Shunzo Yamashita , Takeshi Tanaka
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Mattingly & Malur, P.C.
- 优先权: JP2006-232293 20060829
- 主分类号: G08B1/08
- IPC分类号: G08B1/08 ; G08B21/00 ; G06F1/26 ; G06F1/00
摘要:
A sensor node for intermittently sensing data in a short cycle includes a control unit for acquiring information by driving the sensor, a radio communication unit for transmitting the information acquired by the control unit and a battery for supplying the control unit. The control unit includes a clock supply unit (RTC) for supplying the control unit with clocks at a predetermined frequency. A sensor control unit starts the supply of power to the sensor when the measurement period has begun, maintains the power supply to the sensor even if the control unit has shifted to the standby state during the measurement period, and shuts down the power supply to the sensor when the measurement period has been completed. A measurement unit is also provided for acquiring information from the sensor every time the latter has shifted to the operational state.
公开/授权文献
- US20080055069A1 SENSOR NODE 公开/授权日:2008-03-06