Energy-efficient network protocol and node device for sensor networks
US7729285B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2005 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Dec 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An “on-demand” approach for a routing protocol for a wireless network that achieves balanced energy consumption among all participating nodes in the network. Synchronization messages transmitted by nodes associated with an upstream node include local node information (LNI) that a node can use to repair or bypass a lost upstream node in a real or virtual (temporary) manner depending upon the local node's battery level. Only if a repair process fails will a global re-organization (Re-Org) be initiated. The LNI also allows for nodes having lower power availability (battery level) not to transmit the LNI so that unaffiliated node(s) can select an upstream node having more power availability thereby extending network life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.