Method, device, and system for monitoring taxi
US9978249B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2017 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Apr 5, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q9/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In the embodiments of the present invention, by respectively acquiring a first mass of a taxi when the taxi stops running in an empty state, a second mass of the taxi when the taxi is switched from the empty state to a passenger carrying state, a third mass of the taxi when the taxi is switched from a running state to a stopped state in the passenger carrying state, and a fourth mass of the taxi when the taxi is switched from the empty state to the passenger carrying state; and comparing a first difference between the first mass and the fourth mass with a second difference between the second mass and the third mass, if the first difference is less than the second difference, then it is determined that a passenger's article is left in the taxi and thus an alarm in the taxi will be triggered to warn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.