Sensor nodes with multicast transmissions in lighting sensory network
US10158718B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2016 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Mar 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one example, a method is provided for a lighting node within a lighting infrastructure to communicate data to other nodes within a lighting sensory network. The method includes receiving, at the lighting node, a first message from a server instructing the lighting node to enter into a sensor transmit mode associated with a first type of sensor data, the first message including transmission parameters for transmitting secure sensor messages associated with the first type of sensor data to the other nodes and a retransmit base interval associated with the first type of sensor data. The method includes obtaining, at the lighting node, the first type of sensor data and recording a timestamp associated with a time the first type of sensor data was obtained. The lighting node generates an encrypted sensor message including the obtained first type of sensor data and the recorded timestamp; and transmits the encrypted sensor message by broadcasting the encrypted sensor message to at least one other operating in an authorized listening mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.