EP1148455B1 - Passiv-Infrarot-Bewegungsmelder - Google Patents
Passiv-Infrarot-Bewegungsmelder Download PDFInfo
- Publication number
- EP1148455B1 EP1148455B1 EP01108254A EP01108254A EP1148455B1 EP 1148455 B1 EP1148455 B1 EP 1148455B1 EP 01108254 A EP01108254 A EP 01108254A EP 01108254 A EP01108254 A EP 01108254A EP 1148455 B1 EP1148455 B1 EP 1148455B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detector
- mirrors
- passive infrared
- lenses
- motion sensor
- 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.)
- Expired - Lifetime
Links
- 230000005855 radiation Effects 0.000 claims description 4
- 241000219739 Lens Species 0.000 description 26
- 230000035945 sensitivity Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 240000004322 Lens culinaris Species 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
- G08B13/193—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using focusing means
Definitions
- the invention relates to a passive infrared motion detector with at least a detector / lens arrangement according to the preamble of claim 1.
- Passive infrared motion detectors are generally known, for example in the specialist book “Passive Infrared Motion Detector", Die section dertechnik 131, publishing house modern industry, Landsberg / Lech, 1996 regarding structure and working methods described.
- FIG. 1 A basic detector / lens arrangement used in passive infrared motion detectors is shown in Fig. 1.
- Infrared radiation changes are caused in passive infrared motion detectors usually infrared detectors 3 used, the two sensitive Contain elements 2, and are therefore also referred to as dual sensors.
- a single lens 1 provides communication with the two sensitive elements 2 of the detector 3 two zones 4 in monitoring room in which movements of people 5 are detected.
- Passive infrared motion detectors arranged several lenses in front of the detector.
- the number of realizable zones corresponds to the product of the number of the individual lenses and the number of sensitive elements of the detector.
- For a detector with a predetermined number of elements results in the maximum number the zones from the maximum number of lenses in the detector's view can be arranged. This maximum number is determined by the minimum Dimensions of a single lens limited.
- the size of a single lens results from the strength of the Infrared radiation change, which is detected with the passive infrared motion detector shall be. Therefore, very sensitive passive infrared motion detectors have over a few large lenses. Less sensitive passive infrared motion detector for smaller ranges, on the other hand, get by with smaller lenses and offer through a larger number of lenses a better spatial resolution.
- the definition lens size is therefore always a compromise between achievable Sensitivity, determined by the lens size, and the spatial resolution that is derived from the number of lenses.
- the invention is therefore based on the object of a passive infrared motion detector specify which is both a high sensitivity and a has a high spatial resolution.
- FIG. 2 and 3 illustrate the principle used according to the invention.
- there 2 shows an arrangement of a respective on the left and right side of the drawing Infrared detector 3 with two sensitive elements 2, and two mirrors 6. Die both arranged exactly or at least approximately at right angles to each other Mirrors 6 provide two mirror images 7 of the sensitive elements 2 of the infrared detector 3.
- the two representations of Fig. 2 show that the number of mirror images 7 regardless of the orientation of the elements 2 with respect to the mirrors arise.
- FIG. 3 shows that a detector / mirror arrangement according to FIG. 2 in connection with only a single converging lens 1 creates six zones 4, i.e. three times as many zones 4, than could be achieved with a detector / lens arrangement without a mirror.
- a motion detector can be with a usual multitude of converging lenses 1 on a flat or curved surface Area, and thus a motion detector with a large number of zones 4 realize.
- FIG. 4 shows an arrangement with four identical detector / lens / mirror arrangements according to the invention, which is a motion detector with a detection angle of about 360 °.
- Each of the four infrared detectors 3 two mirrors 6 assigned.
- the mirrors 6 mounted at right angles to one another are like this aligned that between the intersection line 8 of the two mirror planes and a vertical 9 on the level of the sensitive elements 2 with reference numerals 10 designated angle of approx. 25 °.
- the outer envelope of the passive infrared motion detector determine the individual lenses 1, which are called Fresnel lenses can be executed and on a curved, from conical and spherical Parts of the composite surface.
- Fresnel lenses can be executed and on a curved, from conical and spherical Parts of the composite surface.
- As an alternative to fully reflective Mirrors 6 can also use semi-transparent, partially reflecting mirrors become.
- the motion detector according to the invention can also have detectors 3 with more each have two sensitive elements 2.
Description
- Fig. 1
- eine bekannte prinzipielle Detektor/Linsen-Anordnung,
- Fig. 2
- eine erfindungsgemäße Detektor/Spiegel-Anordnung,
- Fig. 3
- eine erfindungsgemäße Detektor/Spiegel-Anordnung in Verbindung mit einer Linse, zur Darstellung einer erzielten Zonen-Vervielfältigung, und
- Fig. 4
- eine Darstellung einer vierfachen Detektor/Linsen/Spiegel-Anordnung.
Claims (5)
- Passiv-Infrarot-Bewegungsmelder mit mindestens einer Detektor/Linsen-Anordnung, die einen Infrarotdetektor (3), der mindestens zwei empfindliche Elemente (2) aufweist, und in dessen Blickwinkel, unter dem Strahlung empfangen werden kann, montierte Sammellinsen (1) sowie zwei etwa im rechten Winkel zueinander angeordnete Spiegel (6) enthält, dadurch gekennzeichnet, daß - zur Erhöhung der Anzahl von Zonen (4) im zu überwachenden Raum - die beiden Spiegel (6) und der Infrarotdetektor (3) jeweils so zueinander angeordnet sind, daß die Spiegel (6) Spiegelbilder der empfindlichen Elemente (2) liefern.
- Passiv-Infrarot-Bewegungsmelder nach Anspruch 1, dadurch gekennzeichnet, daß die einzelnen Linsen der Sammellinsen (1) auf einer ebenen oder beliebig gekrümmten Fläche angeordnet sind.
- Passiv-lnfrarot-Bewegungsmelder nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die einzelnen Linsen der Sammellinsen (1) als beliebig geformte Ausschnitte aus Fresnellinsen ausgeführt sind.
- Passiv-Infrarot-Bewegungsmelder nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die beiden Spiegel (6) als halbdurchlässige, teilweise reflektierende Spiegel ausgeführt sind.
- Passiv-Infrarot-Bewegungsmelder nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß vier identische Detektor/Linsen-Anordnungen mit jeweils zwei Spiegeln (6) vorhanden sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10019999 | 2000-04-22 | ||
DE10019999A DE10019999A1 (de) | 2000-04-22 | 2000-04-22 | Passiv-Infrarot-Bewegungsmelder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1148455A1 EP1148455A1 (de) | 2001-10-24 |
EP1148455B1 true EP1148455B1 (de) | 2003-02-19 |
Family
ID=7639722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01108254A Expired - Lifetime EP1148455B1 (de) | 2000-04-22 | 2001-03-31 | Passiv-Infrarot-Bewegungsmelder |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1148455B1 (de) |
AT (1) | ATE233007T1 (de) |
DE (2) | DE10019999A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006016395B3 (de) * | 2006-04-07 | 2007-07-19 | Abb Patent Gmbh | Detektor/Linsen-Anordnung eines Passiv-Infrarotbewegungsmelders |
DE102014002686A1 (de) | 2014-02-28 | 2015-09-03 | Abb Ag | Infrarot-Bewegungsmelder |
TWI681173B (zh) * | 2016-11-30 | 2020-01-01 | 日商松下知識產權經營股份有限公司 | 紅外線檢測裝置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH591733A5 (de) * | 1976-05-17 | 1977-09-30 | Cerberus Ag | |
US4375034A (en) * | 1980-07-28 | 1983-02-22 | American District Telegraph Company | Passive infrared intrusion detection system |
DE3942830C2 (de) * | 1989-12-23 | 1999-03-04 | Asea Brown Boveri | Passiv-Infrarot-Bewegungsmelder |
GB9100791D0 (en) * | 1991-01-15 | 1991-02-27 | Smiths Industries Plc | Detector assemblies |
DE4244607A1 (de) * | 1992-12-31 | 1994-07-07 | Hl Planartechnik Gmbh | Thermoelektrischer Strahlungssensor, insbesondere für infrarotes und sichtbares Licht |
DE4315183A1 (de) * | 1993-05-07 | 1994-11-10 | Merten Gmbh & Co Kg Geb | Bewegungsmelder |
DE4333707C2 (de) * | 1993-10-02 | 1996-12-05 | Insta Elektro Gmbh & Co Kg | Passiv-Infrarot-Bewegungsmelder |
US5453622A (en) * | 1993-10-05 | 1995-09-26 | Larry C. Y. Lee | Wide-angle motion detector with close-in, prismoidal reflector |
DE19517517B4 (de) * | 1994-05-28 | 2004-07-01 | Cerberus AG, Männedorf | Passiv Infrarot Eindringdetektor |
DE19821302B4 (de) * | 1998-05-13 | 2005-12-15 | Abb Patent Gmbh | Passiv-Infrarot-Bewegungsmelder |
-
2000
- 2000-04-22 DE DE10019999A patent/DE10019999A1/de not_active Withdrawn
-
2001
- 2001-03-31 DE DE50100106T patent/DE50100106D1/de not_active Expired - Lifetime
- 2001-03-31 AT AT01108254T patent/ATE233007T1/de active
- 2001-03-31 EP EP01108254A patent/EP1148455B1/de not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006016395B3 (de) * | 2006-04-07 | 2007-07-19 | Abb Patent Gmbh | Detektor/Linsen-Anordnung eines Passiv-Infrarotbewegungsmelders |
DE102014002686A1 (de) | 2014-02-28 | 2015-09-03 | Abb Ag | Infrarot-Bewegungsmelder |
TWI681173B (zh) * | 2016-11-30 | 2020-01-01 | 日商松下知識產權經營股份有限公司 | 紅外線檢測裝置 |
Also Published As
Publication number | Publication date |
---|---|
EP1148455A1 (de) | 2001-10-24 |
ATE233007T1 (de) | 2003-03-15 |
DE10019999A1 (de) | 2001-10-25 |
DE50100106D1 (de) | 2003-03-27 |
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