Wireless asset tracking systems with heterogeneous communication
US9947196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2016 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Apr 28, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An asset tracking system that utilizes a wireless network system and has primary (main) and secondary (sub) tracking devices or ‘tags’ that are assigned to assets. The main tracking device acts as a coordinator and the sub tracking devices surrounding the coordinator act as end-devices. Each main device acts as a gateway network to long range communication while each sub device can only communicate in proximity profile (short range or nearby communication). Each sub device can communicate only with a main device. The main device passes data from the sub device to a remote host transparently. Each sub device sends its data when it triggered by a ‘ping’ from the main device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.