Occupancy sensor with improved functionality
US9671526B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2014 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Oct 14, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An occupancy sensor detects the occupancy state of a monitored area. The occupancy sensor may be mounted in a standard junction box at various angles and one or more of the ultrasonic sensors may be disabled. The occupancy sensor includes a PIR sensor and one or more ultrasonic sensors. The sensor sensitivities and timeout settings may be programmed by a technician or user via an IR interface or via a network interface. The settings may be changed according to control system logic or some other factor such as date, time or room conditions. Setup of the sensor may also be performed via the IR interface or network interface. The occupancy outputs both a signal taking into account the timeout period as well as a raw data signal. The IR interface may be used to relay messages between a control system and external devices. Algorithms employed in the occupancy sensor allow for the occupancy sensor to process analog signals from sensors to determine the room state, enhance performance such as by reducing false trips, enhance energy savings and force sensors into vacancy or occupancy mode. The occupancy sensor additionally comprises a microphone. Sound can be required to qualify detection …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.