CA2387100A1 - A dual technology occupancy sensor and method for using the same - Google Patents
A dual technology occupancy sensor and method for using the same Download PDFInfo
- Publication number
- CA2387100A1 CA2387100A1 CA002387100A CA2387100A CA2387100A1 CA 2387100 A1 CA2387100 A1 CA 2387100A1 CA 002387100 A CA002387100 A CA 002387100A CA 2387100 A CA2387100 A CA 2387100A CA 2387100 A1 CA2387100 A1 CA 2387100A1
- Authority
- CA
- Canada
- Prior art keywords
- condition
- detection signal
- microwave energy
- detection
- lighting circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract 12
- 230000009977 dual effect Effects 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 claims abstract 86
- 230000004913 activation Effects 0.000 claims abstract 12
- 230000009849 deactivation Effects 0.000 claims abstract 6
- 230000003213 activating effect Effects 0.000 claims 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/183—Single detectors using dual technologies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/04—Systems determining presence of a target
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
- G08B13/1645—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means and other detection means, e.g. microwave or infrared radiation
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/13—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Geophysics And Detection Of Objects (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
A dual technology motion or occupancy sensor, and a method for using the same, to control a lighting circuit to activate and deactivate lights in a monitored area. The sensor employs an infrared energy sensor, a microwave energy sensor, and a controller. The infrared energy sensor outputs an infrared energy detection signal indicative of detection or non-detection of infrared energy, and the microwave energy sensor outputs a microwave energy detection signal indicative of detection or non-detection of microwave energy. The controller outputs a control signal to control activation and deactivation of the lighting circuit in response to a condition of the infrared energy detection signal and a condition of the microwave energy detection signal. Specifically, the controller activates the lighting circuit to turn on the lights in the monitored area when the infrared energy detection signal and microwave energy detection signal indicate occupancy or motion in the monitored area, and maintains the lights in the active state as long as either the microwave energy sensor or the infrared energy sensor sense occupancy or motion in the monitored area.
Claims (20)
1. A sensor, adapted to control a lighting circuit, comprising:
an infrared energy sensor, adapted to output an infrared energy detection signal indicative of detection or non-detection of infrared energy;
a microwave energy sensor, adapted to output a microwave energy detection signal indicative of detection or non-detection of microwave energy; and a controller, adapted to output a control signal to control activation and deactivation of said lighting circuit in response to a condition of said infrared energy detection signal and a condition of said microwave energy detection signal.
an infrared energy sensor, adapted to output an infrared energy detection signal indicative of detection or non-detection of infrared energy;
a microwave energy sensor, adapted to output a microwave energy detection signal indicative of detection or non-detection of microwave energy; and a controller, adapted to output a control signal to control activation and deactivation of said lighting circuit in response to a condition of said infrared energy detection signal and a condition of said microwave energy detection signal.
2. A sensor as claimed in claim 1, wherein:
said infrared energy sensor outputs said infrared energy detection signal having a first condition representative of detection of said infrared energy, and outputs said infrared energy detection signal having a second condition representative of non-detection of said infrared energy; and said microwave energy sensor outputs said microwave energy detection signal having a first condition representative of detection of said microwave energy, and outputs said microwave energy detection signal having a second condition representative of non-detection of said microwave energy.
said infrared energy sensor outputs said infrared energy detection signal having a first condition representative of detection of said infrared energy, and outputs said infrared energy detection signal having a second condition representative of non-detection of said infrared energy; and said microwave energy sensor outputs said microwave energy detection signal having a first condition representative of detection of said microwave energy, and outputs said microwave energy detection signal having a second condition representative of non-detection of said microwave energy.
3. A sensor as claimed in claim 2, wherein:
when said controller is outputting said control signal having a deactivation condition to maintain said lighting circuit in an inactive state, said controller is adapted to change said control signal to an activation condition to activate said lighting circuit in response to said infrared energy detection signal having said first condition and said microwave energy detection signal having said first condition.
when said controller is outputting said control signal having a deactivation condition to maintain said lighting circuit in an inactive state, said controller is adapted to change said control signal to an activation condition to activate said lighting circuit in response to said infrared energy detection signal having said first condition and said microwave energy detection signal having said first condition.
4. A sensor as claimed in claim 2, wherein:
when said controller is outputting said control signal having an activation condition to maintain said lighting circuit in an active state, said controller is adapted to maintain said control signal in said activation condition to maintain activation of said lighting circuit in response to said infrared energy detection signal having said first condition and said microwave energy detection signal having said second condition, or vice versa.
when said controller is outputting said control signal having an activation condition to maintain said lighting circuit in an active state, said controller is adapted to maintain said control signal in said activation condition to maintain activation of said lighting circuit in response to said infrared energy detection signal having said first condition and said microwave energy detection signal having said second condition, or vice versa.
5. A sensor as claimed in claim 2, wherein:
when said controller is outputting said control signal having an activation condition to maintain said lighting circuit in an active state, said controller is adapted to change said control signal to a deactivation condition to deactivate said lighting circuit in response to said infrared energy detection signal having said second condition, and said microwave energy detection signal having said second condition, for a predetermined duration of time.
when said controller is outputting said control signal having an activation condition to maintain said lighting circuit in an active state, said controller is adapted to change said control signal to a deactivation condition to deactivate said lighting circuit in response to said infrared energy detection signal having said second condition, and said microwave energy detection signal having said second condition, for a predetermined duration of time.
6. A sensor as claimed in claim 5, wherein:
when either said infrared energy detection signal or said microwave energy detection signal fails to maintain its respective said second condition for said predetermined duration of time, said controller is adapted to maintain said control signal in said activation condition to maintain said lighting circuit in said active state.
when either said infrared energy detection signal or said microwave energy detection signal fails to maintain its respective said second condition for said predetermined duration of time, said controller is adapted to maintain said control signal in said activation condition to maintain said lighting circuit in said active state.
7. A sensor as claimed in claim 2, wherein:
when said controller is outputting said control signal having an activation condition to maintain said lighting circuit in an active state, said controller is adapted to change said control signal to a deactivation condition to deactivate said lighting circuit in response to said infrared energy detection signal having said second condition, or said microwave energy detection signal having said second condition, for a predetermined duration of time.
when said controller is outputting said control signal having an activation condition to maintain said lighting circuit in an active state, said controller is adapted to change said control signal to a deactivation condition to deactivate said lighting circuit in response to said infrared energy detection signal having said second condition, or said microwave energy detection signal having said second condition, for a predetermined duration of time.
8. A sensor as claimed in claim 7, wherein:
when either said infrared energy detection signal or said microwave energy detection signal fails to maintain its respective said second condition for said predetermined duration of time, said controller is adapted to maintain said control signal in said activation condition to maintain said lighting circuit in said active state.
when either said infrared energy detection signal or said microwave energy detection signal fails to maintain its respective said second condition for said predetermined duration of time, said controller is adapted to maintain said control signal in said activation condition to maintain said lighting circuit in said active state.
9. A sensor as claimed in claim 1, wherein:
said controller is adapted to compare a magnitude of said microwave energy detection signal to a microwave detection threshold to determine detection or non-detection of microwave energy, and is adapted to compare a magnitude of said infrared energy detection signal to an infrared detection threshold to determine detection or non-detection of infrared energy.
said controller is adapted to compare a magnitude of said microwave energy detection signal to a microwave detection threshold to determine detection or non-detection of microwave energy, and is adapted to compare a magnitude of said infrared energy detection signal to an infrared detection threshold to determine detection or non-detection of infrared energy.
10. A sensor as claimed in claim 9, wherein:
said controller is adapted to adjust at least one of a magnitude of said microwave detection threshold and a magnitude of said infrared detection threshold.
said controller is adapted to adjust at least one of a magnitude of said microwave detection threshold and a magnitude of said infrared detection threshold.
11. A method for controlling a lighting circuit, comprising:
detecting for infrared energy in a monitored area and providing an infrared energy detection signal indicative of detection or non-detection of said infrared energy;
detecting for microwave energy in said monitored area and providing a microwave energy detection signal indicative of detection or non-detection of said microwave energy;
and controlling activation and deactivation of said lighting circuit in response to a condition of said infrared energy detection signal and a condition of said microwave energy detection signal.
detecting for infrared energy in a monitored area and providing an infrared energy detection signal indicative of detection or non-detection of said infrared energy;
detecting for microwave energy in said monitored area and providing a microwave energy detection signal indicative of detection or non-detection of said microwave energy;
and controlling activation and deactivation of said lighting circuit in response to a condition of said infrared energy detection signal and a condition of said microwave energy detection signal.
12. A method as claimed in claim 11, wherein:
said infrared energy detecting step provides said infrared energy detection signal having a first condition representative of detection of said infrared energy, and outputs said infrared energy detection signal having a second condition representative of non-detection of said infrared energy; and said microwave energy detecting step provides said microwave energy detection signal having a first condition representative of detection of said microwave energy, and outputs said microwave energy detection signal having a second condition representative of non-detection of said microwave energy.
said infrared energy detecting step provides said infrared energy detection signal having a first condition representative of detection of said infrared energy, and outputs said infrared energy detection signal having a second condition representative of non-detection of said infrared energy; and said microwave energy detecting step provides said microwave energy detection signal having a first condition representative of detection of said microwave energy, and outputs said microwave energy detection signal having a second condition representative of non-detection of said microwave energy.
13. A method as claimed in claim 12, wherein:
when said controlling step is maintaining said lighting circuit in an inactive state, activating said lighting circuit when said infrared energy detection signal has said first condition and said microwave energy detection signal has said first condition.
when said controlling step is maintaining said lighting circuit in an inactive state, activating said lighting circuit when said infrared energy detection signal has said first condition and said microwave energy detection signal has said first condition.
14. A method as claimed in claim 12, wherein:
when said controlling step is maintaining said lighting circuit in an active state, maintaining activation of said lighting circuit when said infrared energy detection signal having said first condition and said microwave energy detection signal has said second condition, or vice versa.
when said controlling step is maintaining said lighting circuit in an active state, maintaining activation of said lighting circuit when said infrared energy detection signal having said first condition and said microwave energy detection signal has said second condition, or vice versa.
15. A method as claimed in claim 12, wherein:
when said controlling step is maintaining said lighting circuit in an active state, deactivating said lighting circuit when said infrared energy detection signal has said second condition, and said microwave energy detection signal has said second condition, for a predetermined duration of time.
when said controlling step is maintaining said lighting circuit in an active state, deactivating said lighting circuit when said infrared energy detection signal has said second condition, and said microwave energy detection signal has said second condition, for a predetermined duration of time.
16. A method as claimed in claim 15, wherein:
when either said infrared energy detection signal or said microwave energy detection signal fails to maintain its respective said second condition for said predetermined duration of time, maintaining said lighting circuit in said active state.
when either said infrared energy detection signal or said microwave energy detection signal fails to maintain its respective said second condition for said predetermined duration of time, maintaining said lighting circuit in said active state.
17. A method as claimed in claim 12, wherein:
when said controlling step is maintaining said lighting circuit in an active state, deactivating said lighting circuit when said infrared energy detection signal has said second condition, or said microwave energy detection signal has said second condition, for a predetermined duration of time.
when said controlling step is maintaining said lighting circuit in an active state, deactivating said lighting circuit when said infrared energy detection signal has said second condition, or said microwave energy detection signal has said second condition, for a predetermined duration of time.
18. A method as claimed in claim 17, wherein:
when either said infrared energy detection signal or said microwave energy detection signal fails to maintain its respective said second condition for said predetermined duration of time, maintaining said lighting circuit in said active state.
when either said infrared energy detection signal or said microwave energy detection signal fails to maintain its respective said second condition for said predetermined duration of time, maintaining said lighting circuit in said active state.
19. A method as claimed in claim 11, wherein:
said controlling step compares a magnitude of said microwave energy detection signal to a microwave detection threshold to determine detection or non-detection of microwave energy, and compares a magnitude of said infrared energy detection signal to an infrared detection threshold to determine detection or non-detection of infrared energy.
said controlling step compares a magnitude of said microwave energy detection signal to a microwave detection threshold to determine detection or non-detection of microwave energy, and compares a magnitude of said infrared energy detection signal to an infrared detection threshold to determine detection or non-detection of infrared energy.
20. A method as claimed in claim 19, further comprising:
adjusting at least one of a magnitude of said microwave detection threshold and a magnitude of said infrared detection threshold.
adjusting at least one of a magnitude of said microwave detection threshold and a magnitude of said infrared detection threshold.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/861,866 US6791458B2 (en) | 2001-05-22 | 2001-05-22 | Dual technology occupancy sensor and method for using the same |
| CA2387100A CA2387100C (en) | 2001-05-22 | 2002-05-21 | A dual technology occupancy sensor and method for using the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/861,866 | 2001-05-22 | ||
| US09/861,866 US6791458B2 (en) | 2001-05-22 | 2001-05-22 | Dual technology occupancy sensor and method for using the same |
| CA2387100A CA2387100C (en) | 2001-05-22 | 2002-05-21 | A dual technology occupancy sensor and method for using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2387100A1 true CA2387100A1 (en) | 2003-11-21 |
| CA2387100C CA2387100C (en) | 2011-09-06 |
Family
ID=32736732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2387100A Expired - Lifetime CA2387100C (en) | 2001-05-22 | 2002-05-21 | A dual technology occupancy sensor and method for using the same |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6791458B2 (en) |
| CA (1) | CA2387100C (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20020175815A1 (en) | 2002-11-28 |
| US6791458B2 (en) | 2004-09-14 |
| CA2387100C (en) | 2011-09-06 |
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