Methods and systems for preserving the life of a power source of a wireless end node in a transport refrigeration system
US9060337B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 21, 2013 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Jun 29, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Methods and systems for preserving the life of a power source of a wireless end node of a wireless communication system for use in a mobile environment are provided. In one embodiment, a method is provided that includes wirelessly transmitting a wireless end node acknowledgment message to a network coordinator during a normal operation mode of the wireless end node. The method also includes the wireless end node monitoring for a network coordinator acknowledgment message from a network coordinator in response to the wireless end node acknowledgement message during the normal operation mode of the wireless end node. Also, the method includes incrementing a missed acknowledgment counter value stored in a memory storage of the wireless end node when the network coordinator acknowledgment message is not received. Further, the method includes increasing a time period of a sleep timer of the wireless end node when the missed acknowledgment counter value equals a missed acknowledgment threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.