CN2368094Y - Infrared mobile sensor - Google Patents
Infrared mobile sensor Download PDFInfo
- Publication number
- CN2368094Y CN2368094Y CN 99207178 CN99207178U CN2368094Y CN 2368094 Y CN2368094 Y CN 2368094Y CN 99207178 CN99207178 CN 99207178 CN 99207178 U CN99207178 U CN 99207178U CN 2368094 Y CN2368094 Y CN 2368094Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- infrared ray
- infrared
- light
- sensing
- 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 - Fee Related
Links
Images
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model relates to an infrared mobile sensor, comprising an infrared sensitive element, a sensing light path, a sensing circuit, a light control circuit, a delay circuit, an executive device, and a power circuit. The infrared sensing light path is composed of a light focusing sheet at the front end of the infrared sensing element and a transparent window with a circular surface. The output end of the infrared sensing element is connected with a low-noise signal amplifying circuit, and the sensing circuit is composed of the infrared sensing element and a differential amplifier. The sensing light path has the advantages of strong interference rejection and a large monitoring solid angle. The light path device has easy manufacture and formation, and the electronic circuit is simple with few components and stable and reliable operation. The utility model has high cost performance ratio, and is convenient for mass production, popularization and application.
Description
The utility model is a kind of sensor of following the tracks of the mobile object infrared radiation.
Existing infrared ray movable sensor utilizes the infrared radiation principle of mobile object to make, so radio-sensitive element is that infrared radiation about 10 microns must be responsive to wavelength.The non-quantum detector of most employings, promptly thermal detector is made Passive Track, and its sensitivity is still enough, and slower because of the mobile object movement velocity, and the inertia of infrared sensor also can be ignored.In use still there is malfunctioning or wrong report situation in many passive infrared movable sensors now, it is most relevant with the unreasonable structure of sensitive element periphery to analyze reason, infrared window unreasonable structure for example, cause and monitor that the angle is too small, make prison wish that device is malfunctioning, then poor anti jamming capability or electronic circuit job insecurity cause often in wrong report.CN2268957Y proposes a kind of spherical ultrared sensing device structure, in order to enlarge reconnaissance range, reduces dead detecting angle.The outer guard and the interior guard of this infrared induction shell all are semisphere, have some arc skeletons and protruding outside upper casing, accompany one between the inside and outside guard and omit the flexible colloid enlarging lens of tool, then radial disk during expansion, have the some blades to external diffusion, can respond to the infrared radiation scope when interior guard is sticked in outer guard for circular radial, its shortcoming is that structure is too complicated, the cost height can't be applied in the normal domestic product.
The purpose of this utility model is the situation that has malfunctioning or misoperation at above-mentioned infrared ray movable sensor, designs a kind of highly sensitive, infrared ray movable sensor that working stability is reliable, simple in structure, cheap.
Design proposal of the present utility model is, the infrared ray movable sensor, it comprises infrared ray responsive element, sensing light path, sensing circuit, performer and power circuit, and infrared ray sensor is formed the infrared ray sensing light path by concentration piece that is positioned at infrared ray responsive element front end and the light inlet window that is disc; Infrared ray responsive element output termination low noise signal amplification circuit and differential amplifier are formed sensing circuit.
The condenser of sensing light path is a Fresnel Lenses, is used to assemble the infrared ray of certain wavelength, and the light of other wavelength is not seen through, thereby can get rid of the light interference of environment effectively.Circular infrared window makes to monitor that solid angle expands, and does not have the dead angle of supervision; Sensitive element is the pyroelectricity element, and its output adopts operational amplifier to form the differential amplifier that preposition low noise amplifier is a two-stage tandem, makes circuit simple, and components and parts are few, guarantees that working stability is reliable.Because the refractive index of grating equation and optical material is irrelevant, the organic glass mould compression moulding that it is good that lens on the sensing light path and infrared window can be selected transmittance for use, thereby make handling ease, cost is lower.Therefore the utlity model has preferable performance price ratio, be convenient to make in enormous quantities and apply.
Fig. 1 is a kind of example structure figure of the utility model.
Fig. 2 is the utility model circuit diagram.
Fig. 3 is the outside drawing of Fig. 1.
Fig. 4 is another embodiment outside drawing.
Structure and the function thereof of embodiment are described below in conjunction with accompanying drawing.
The utility model is made up of sense light circuit component, sensitive element, electronic circuit and power circuit.Figure 1 shows that circular arc infrared sensor structure.Comprise upper casing (1), lower casing (6), mesochite (7) and bottom (9).The top of upper casing (1) is that the transparent window (11) of sphere is installed and fixed upper casing (1) and transparent window (11) by mounting hole (12) with mesochite (7).Lower casing (6) is inserted in the mesochite (7), last circuit board (5) is inserted in the lower casing (6), light-collecting lens (2) is enclosed within the transparent window (11), eyeglass pressing plate (3) compresses condenser (2) and upper shield on last circuit board (5), infrared sensor (4) is in the center on the circuit board, following circuit board (8) is inserted in the bottom of mesochite (7), and bottom (9) then is placed on down under the circuit board (8).The components and parts of the following installation electronic sensor circuit of last circuit board (5), the top installation power circuit and the executive component circuit of following circuit board (8).
Electronic circuit partly comprises sensing circuit, differential amplifier circuit, light-operated circuit, delay circuit executive circuit and power circuit.Except that power circuit, entire circuit is only formed with a four high guaily unit circuit L324.By sensitive element PIR light signal is discharged electric signal through resistance R
2Capacitor C
2Enter by voltage comparator ic: B, resistance R
3, R
4Capacitor C
3, C
4Form the low noise pre-amplification circuit, it is the one-level differential amplifier just.Signal is through R
6And C
5Enter resistance R after the coupling by IC:C
7And capacitor C
6The secondary differential amplifier of forming.By voltage comparator ic: D triode V
2Diode D
4, photoresistance CDS, potentiometer W
2And resistance R
15, R
16, R
19, R
20And capacitor C
7Form the light-operated circuit of day and night of identification automatically, by regulator potentiometer W
2Set the compare threshold at daytime or night, make to adapt to daytime or signal output at night, through voltage comparator ic: D compares and enlarges, and input is by potentiometer W
1, resistance R
12, R
14And capacitor C
9The delay circuit of forming is regulated W
1Time delays signal input triode V after IC:A amplifies of delayed alarm can be set
1Start bidirectional triode thyristor T
1Work.T
1Can be informed of a case warning lamp or loudspeaker of output terminal are reported to the police.
Power circuit is by resistance R
22, R
23And capacitor C
13Step-down, diode D
1, D
3Rectification, Z
1And Z
2Form low-tension supply after the voltage stabilizing electronic circuit work is provided.
Fig. 4 is the outside drawing of another embodiment of the utility model, and its infrared window is transparent semisphere window, and its inner structure and Fig. 1 are basic identical, no longer auspicious stating.
Claims (8)
1, infrared ray movable sensor, it comprises infrared ray responsive element, sensing light path, sensing circuit, light-operated circuit, delay circuit, executive component and power circuit, it is characterized in that infrared ray sensor forms the infrared ray sensing light path by concentration piece that is positioned at end before the infrared ray responsive element and the light inlet window that is disc; Infrared sensor output termination low noise signal amplification circuit and differential amplifier are formed sensing circuit.
2, infrared ray movable sensor as claimed in claim 1, it is characterized in that the infrared sensor structure also comprises upper casing (1), lower casing (6), mesochite (7) and bottom (9), the top of upper casing (1) is the transparency window (11) of sphere, lower casing (6) is inserted in the mesochite (7), last circuit board (5) is placed in the lower casing (6), light-collecting lens (2) is placed under the transparent window (11), eyeglass pressing plate (3) compresses light-collecting lens (2) and upper shield on last circuit board (5), infrared sensor (4) is in the center on the circuit board, following circuit board (8) is inserted in the bottom of mesochite (7), and bottom (9) is placed on down under the circuit board (8).
3, infrared ray movable sensor as claimed in claim 1 or 2 is characterized in that concentration piece (2) is the transmission-type Fresnel lenses.
4, infrared ray movable sensor as claimed in claim 1 is characterized in that the low noise signal amplification circuit is by voltage comparator ic: B, resistance R
3, R
4And capacitor C
3, C
4Form the differential amplification of one-level.
5, infrared ray movable sensor as claimed in claim 1 is characterized in that by IC:C and resistance R thereof
7, R
8Capacitor C
6Form the differential amplification of secondary.
6, infrared ray movable sensor as claimed in claim 1, the light-operated circuit that it is characterized in that discerning automatically day and night are by voltage comparator ic: D triode V
2, diode D
4, photoresistance CDS, potentiometer W
2, resistance R
15, R
16, R
19, R
20, capacitor C
7Form.
7, infrared ray movable sensor as claimed in claim 1 is characterized in that the light-operated circuit output terminal also connects by potentiometer W
1, resistance R
14And capacitor C
9The delay circuit of forming.
8, infrared ray movable sensor as claimed in claim 1 is characterized in that infrared window is the bright semisphere window of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99207178 CN2368094Y (en) | 1999-04-09 | 1999-04-09 | Infrared mobile sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99207178 CN2368094Y (en) | 1999-04-09 | 1999-04-09 | Infrared mobile sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2368094Y true CN2368094Y (en) | 2000-03-08 |
Family
ID=34001253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99207178 Expired - Fee Related CN2368094Y (en) | 1999-04-09 | 1999-04-09 | Infrared mobile sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2368094Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512594A (en) * | 2012-06-20 | 2014-01-15 | 通用电气公司 | Overhead occupancy sensor |
| CN106354057A (en) * | 2016-09-19 | 2017-01-25 | 深圳市共进电子股份有限公司 | Pick-up device |
| CN107543614A (en) * | 2016-06-24 | 2018-01-05 | 上海新微技术研发中心有限公司 | Thermopile sensor |
-
1999
- 1999-04-09 CN CN 99207178 patent/CN2368094Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512594A (en) * | 2012-06-20 | 2014-01-15 | 通用电气公司 | Overhead occupancy sensor |
| CN107543614A (en) * | 2016-06-24 | 2018-01-05 | 上海新微技术研发中心有限公司 | Thermopile sensor |
| CN106354057A (en) * | 2016-09-19 | 2017-01-25 | 深圳市共进电子股份有限公司 | Pick-up device |
| CN106354057B (en) * | 2016-09-19 | 2018-11-13 | 深圳市共进电子股份有限公司 | Photographic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019095622A1 (en) | Light control system for led light | |
| CN203606914U (en) | Infrared alarm based on single-chip microcomputer | |
| CN2865137Y (en) | Heat-releasing far-infrared electricity-saving intelligent switch device | |
| KR101995401B1 (en) | dimming control system based multimedia information fusion | |
| US4468657A (en) | Simplified intruder detector | |
| CN2368094Y (en) | Infrared mobile sensor | |
| US20200217713A1 (en) | Sensor assembly and a device comprising such sensor assembly | |
| CN204535858U (en) | A kind of pyroelectric infrared sensor module | |
| CN114076819A (en) | Home environment monitoring circuit, detection device and robot | |
| CN206348897U (en) | smoke detection alarm | |
| CN2532483Y (en) | Infrared flame detector | |
| CN202535585U (en) | Intelligent streetlamp control system based on light and heat | |
| CN205961324U (en) | Formula infrared ray video monitor system is stored up in cabin | |
| Adrian et al. | Intelligent power management device for street lighting control incorporating long range static and non-static hybrid infrared detection system | |
| CN201119061Y (en) | Light sensitive intelligent controller | |
| CN216525792U (en) | Home environment monitoring circuit, detection device and robot | |
| CN103442476A (en) | LED illuminating system infrared identification controller | |
| Avotins et al. | Considerations on experimental validation of motion detection sensors for street lighting systems | |
| CN201629882U (en) | Pyroelectric infrared induction lamp | |
| CN212273786U (en) | Outdoor infrared induction wall lamp | |
| CN203352874U (en) | LED illumination system infrared identification controller | |
| CN214851932U (en) | Corridor lamp control circuit based on single chip microcomputer | |
| JPS5999278A (en) | Device and method of detecting change of radiating beam pattern | |
| CN203574895U (en) | Intelligent illuminating system | |
| CN206112744U (en) | Energy -conserving street lamp in district |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |