# US 7,123,139 B2 · Wireless integrated occupancy sensor

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- Number: US 7,123,139 B2
- Document ID: US7123139B2
- Status: Granted
- Kind: B2
- Application number: 11/136,879
- Filed: 2005-05-25
- Published: 2005-12-01
- Granted: 2006-10-17
- Earliest claimed: 2004-05-25
- Assignees: Tac, LLC
- Inventors: Kevin Sweeney
- Web page: https://patentgrep.com/patent/US7123139B2

## CPC

- G08B 13/19: using infrared-radiation detection systems {(G08B13/194 takes precedence)}
- F24F 11/30: for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F 11/46: Improving electric energy efficiency or saving
- G08B 19/00: Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
- G08B 29/183: {Single detectors using dual technologies (G08B13/1672, G08B13/2448, G08B13/2494 take precedence)}
- F24F 2120/10: Occupancy
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)

## Abstract

An occupancy sensor is provided for determining whether a room is occupied. The occupancy sensor integrates a battery-powered PIR motion detector and a battery-powered Hall Effect switch, each of which communicates wirelessly with a controller, in a single housing.

## Claims

### Claim 1

An occupancy sensor for detecting occupancy of a room with an access door comprising:
a battery-powered passive infrared motion detector for producing a motion detected status message;
a battery-powered Hall Effect switch for producing a door open or door closed status message; and
a battery-powered transceiver for wirelessly transmitting motion detected, door open and door closed status messages;
wherein the motion detector, the Hall Effect switch and the transceiver are all contained in a single housing.

### Claim 2 (depends on 1)

The occupancy sensor of claim 1 further comprising one or more batteries of the same type contained in the single housing to act as a power source for the motion detector, the Hall Effect switch and the transceiver.

### Claim 3 (depends on 2)

The occupancy sensor of claim 2 wherein the occupancy sensor wirelessly transmits a low battery status message when the one or more batteries have less than 20 percent battery capacity remaining.

### Claim 4 (depends on 3)

The occupancy sensor of claim 3 further comprising one or more batteries of the same type contained in the single housing to act as a power source for the motion detector and the Hall Effect switch.

### Claim 5 (depends on 1)

The occupancy sensor of claim 1 further comprising a cover to the single housing and a tamper switch that causes a tamper detected status message to be sent when the cover is removed from the single housing.

### Claim 6

An occupancy sensor for detecting occupancy of a room with an access door comprising:
a battery-powered passive infrared motion detector for detecting motion within the room;
a battery-powered Hall Effect switch for detecting whether the door is open or closed;
wherein the motion detector and the Hall Effect switch are each in wireless communication with a controller and are both contained in a single housing.