System and method for safety message latency characterization
US12132587B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2023 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Mar 15, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W56/009
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method comprising: accessing a response mapping defining a set of safety-critical functions associated with a safety-critical latency threshold and a set of safety responses, each safety response corresponding to a safety-critical function; executing a time-synchronization protocol with a transmitting system to calculate a clock reference; accessing a safety message schedule indicating an expected arrival time for each safety message in a series of safety messages based on the clock reference; for each safety message in the series of safety messages, calculating a latency of the safety message based on an arrival time of the safety message and the expected arrival time; and in response to a latency of a current safety message in the series of safety messages exceeding the safety-critical latency threshold, initiating the safety response corresponding to the safety-critical function for each safety-critical function in the set of safety-critical functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.