Sensor node, base station, and sensor network system
US7512418B2 · kind B2 · utility
10Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2005 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Jul 13, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This invention achieves lower electric power consumption of a sensor node for carrying out an intermittent operation, in a sensor net system. A time when the sensor node transmits a signal to a base station is estimated. Then, in accordance with the estimation, a table for storing a signal transmitted from the sensor node is installed in a wireless section of the base station. Consequently, a communication time between the sensor node and the base station can be made shorter. Also, a start time of a micro computer is set for RTC inside the sensor node, so the micro computer inside the sensor node can be put in the standby state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.