Control system, surface, and control device
US7362226B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2005 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Aug 17, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q9/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides a control system including: plural wireless measuring units, each of which, when receiving a radio signal, uses the signal as an energy source to measure a physical quantity, and generates and sends a radio signal having an attribute reflecting the measured physical quantity; a transmitter; a receiver; a storage unit which stores position data of the wireless measuring units in accordance with their identification data; a calculation unit which calculates physical quantities based on the received radio signals; a recognition unit which recognizes a distribution of the calculated physical quantities with reference to position data stored in accordance with identification data specified by the received radio signals; an identifying unit which identifies a state of an object on the surface based on the distribution of the recognized physical quantities; and a control unit which performs a control depending on the state of the identified object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.