CN2137381Y - Portable passive infrered detector-alarm - Google Patents
Portable passive infrered detector-alarm Download PDFInfo
- Publication number
- CN2137381Y CN2137381Y CN 92221541 CN92221541U CN2137381Y CN 2137381 Y CN2137381 Y CN 2137381Y CN 92221541 CN92221541 CN 92221541 CN 92221541 U CN92221541 U CN 92221541U CN 2137381 Y CN2137381 Y CN 2137381Y
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- sound
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- alarm
- electric signal
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Abstract
The utility model provides a portable passive infrared detection alarm. A unit doublet heat release electric sensor and a combined infrared fresnel lens form light detection and photoelectric conversion, and a special integrated circuit, an imitating sound circuit and a discrete component which is arranged at the periphery of the imitating sound circuit constitute electrical signal handling, communication sound handling and sonification warning. The utility model is also provided with a universal regulating device for being hung on a wall. The portable passive infrared detection alarm is supplied with power by three five batteries, and the quiescent current is under 50 microamperes. The monitored viewing field is in 89 DEG*14 DEG, or the commendation sound ' dingdong' or the alarm whistle sound are sent out. The portable passive infrared detection alarm is suitable for the safe protection of families, the alarm of dangerous areas, the report of coming visitors in shops or offices, and the safe protection in travel.
Description
The utility model relates to a kind of intruder's warning device, particularly a kind of pocket passive infrared detection telltale of the invasion energy effect by heat or optical radiation.
Infrared intrusion alarm unit is divided into two kinds of active and passive types usually, is a kind of active infra-red invasion long-distance alarm device as CN87212505 patent " active infra-red intrusion alarm device ".The zone that it monitored is the long straight line of a distance, must have a transmitter and a receiver, is applicable to the periphery warning, warns in the zone that is not suitable for the broad angular field of view.
The purpose of this utility model is to provide a kind of small portable, is beneficial to and carries the detection telltale of moving, can do broad angular field of view area outlook.
The purpose of this utility model is to finish with following technical scheme, and its principle is based on the passive infrared detection principle, and by the infra-red detection device, electric signal processing and amplifying device is interrogated and rung device, dry cell, and housing and universal adjusting device are formed.Constitute primary optical system by tygon Fresnel Infrared Lens, infrared ray is converged on the double base pyroelectric sensor.When not having intrusion target in monitoring the visual field, dual element sensor is in balance does not have alert state; When in the visual field intrusion target being arranged, the infrared radiation of intrusion target itself makes the dual element sensor monobasic receive signal earlier, destroyed equilibrium state, radiation signal has been converted to electric signal, rung through signal Processing, news then and handle and the driving audio alarm by sensor.Sound equipment has ding-dong doorbell sound and police whistle sound available, the universal adjusting device of having can provide convenience by dress and regulate.
Below in conjunction with accompanying drawing details of the present utility model is further illustrated.
Fig. 1 is the front elevation of the utility model profile.
Fig. 2 is the side view of the utility model profile.
Fig. 3 is the cut-away structure chart of the utility model main body, and it is the view along AA direction among Fig. 1.
Fig. 4 is the utility model circuit theory diagrams.
Referring to accompanying drawing, detective devices using infrared ray of the present utility model is made up of Pyroelectronic Sensor 9 and infrared combination Fresnel lens 2, and combination Fresnel lens 2 is loaded in the ad hoc bayonet socket in the top of protecgulum 1 of housing. And pyroelectric sensor 9 is installed on the printed circuit board (PCB) 10, and printed circuit board (PCB) 10 is fixed on the inner chamber top of housing bonnet 3. When the protecgulum 1 of housing and bonnet 3 close up when covering tightly, relative distance between combination Fresnel lens 2 and the sensor 9 just is the focal length of lens, the photosurface of sensor 9 is on the focal plane of lens 2, and combination Fresnel lens 2 correctly focuses on the target in on-the-spot on the sensor 9. And every group of Fresnel lens unit of sensor 9 double bases and column direction and combination Fresnel lens 2 and column direction consistent.
The signal of telecommunication of the present utility model amplifies treating apparatus 12 and is installed on the printed circuit board (PCB) 10, and the signal of telecommunication of sensor 9 is delivered to the signal of telecommunication by biasing anti-clutter circuit 11 and amplified treating apparatus 12. It is that special IC 121 and the peripheral discrete component thereof of 5G060 forms by model mainly that the signal of telecommunication amplifies treating apparatus 12. Special IC is the integrated of the monostable delayer that is made up of two-stage amplifier, two-way comparator and oscillator, counter and output driving circuit.
The utility model power supply saves No. 5 dry cells 8 by three for 4.5 volts and powers, and battery 8 is fixed on by battery folder in the battery compartment of bonnet 3 bottoms, is equipped with in the battery compartment outside with bonnet and covers 7 with the fixing battery compartment of bayonet socket.
The utility model selects main body to be in " waiting for " state and required plan tone signal with a DPTT double-pole triple throw switch 4, and switch 4 is positioned at the top, side of bonnet 3.
Universal adjusting device of the present utility model is made up of rotatable pole ball 5 and adjustment seat 6.The pommel plug of pole ball 5 can support complete machine restfully in the ball chamber of adjustment seat 6, turn freely under certain external force; The other end of pole ball 5 plugs by a slide plate shape wedge mouth and bonnet 3, has to supply the fixedly standby hole of usefulness on adjustment seat 6.
The utility model has following beneficial effect:
This infrared acquisition telltale volume little, in light weight, use dry cell power supply, need not external cabling, easy for installation, can be placed on Anywhere, perhaps fixing on the wall.In case finding has people's activity in its monitor area, can send " ding-dong " sound or police whistle sound immediately, to remind owner to note or to threaten illegal invasion person.Be applicable to the household safe protection, dangerous area is warned, and does safety precaution when shop or the guest of office report and travelling is spent a holiday.
2. this infrared acquisition telltale is based on the passive infrared detection principle, and day and night can both be worked.
3. this infrared acquisition telltale is installed and can be made 120 degree free adjustment on the wall with universal adjusting device, and surveillance distance is greater than 5 meters, 89 ° * 14 ° of visual fields.
4. switch is put diverse location, can select " ding-dong " sound or police whistle sound.
5. power consumption is little, and working current was below 50 microamperes when complete machine was in " waiting for " state.When functional switch commutation doorbell or when warning state, complete machine is worked immediately, need not the built-in voltage time about one minute.
The utility model designer recommends following embodiment:
Shell is made with ABS plastic, and shell protecgulum 1 supports Fresnel lens 2 with certain curvature notch.Fresnel lens 2 is made up of two groups of unit up and down, and group contains 8 unit it on, and following group contains 4 unit, and last group of supervision be than the territory, far field, following group of supervision near region.Every group curves the cylinder shape again, forms 89 ° at top view visual angle, and the side-looking visual angle can reach 14 ° of visual fields.Functional select switch 4 on the shell bonnet 3 has three positions: " CHIME " makes doorbell ding-dong sound and uses; " OFF " audible segment quits work, and is in and waits for duty but survey telltale; " ALARM " makes police whistle sound and uses.Universal adjusting device comprises pedestal and rotating pole ball two parts, utilizes the elasticity of plastics, cooperatively interacts with certain magnitude of interference, and main body both can be rotated reposefully around pedestal, can rest on the position of being regulated reposefully again.Adjustment seat 6 is installed on the wall, the utility model main body is hung on the wall, and be adjusted to required monitor area in 120 ° of scopes.
Whole casing is made up of protecgulum 1, bonnet 3 and battery compartment lid 7.Fresnel Lenses 2 and acoustical generator 141 are supported by protecgulum 1.Printed circuit board (PCB) 10 is supported by bonnet 3, and pyroelectric sensor 9 is installed on the circuit board 10.The front and rear covers cooperation has guaranteed that the photosurface of sensor 9 is on the focal plane of Fresnel lens 2.The Lower Half of bonnet 3 constitutes battery compartment, can hold No. 5 batteries 8 of three joints in the storehouse.Cover battery cover 7, three batteries non-loosening leeway, guarantee that battery reliably contacts with the battery folder contact.After loading onto three batteries, the main frame center of gravity is on the low side, stands steadily.
Referring to Fig. 4, the circuit of present embodiment by anti-tampering, the electric signal processing and amplifying of biasing, intend tone signal and audio frequency and amplify four parts and form.The anti-tampering part 11 of setovering wherein pyroelectric sensor 9 electrical signal converted is taken out by pull-up resistor R1, and C1 and C2 are provided with for anti-Radio frequency interference (RFI).Electric signal processing and amplifying part 12 cores are special ICs 121.Containing secondary in the special IC amplifies, two-way comparer, oscillator sum counter, add the feedback regulation oscillation frequency, the required resistance capacitance of power filter is finished amplification, comparison and the triggering delay process to electric signal jointly, then to back level output control signal.V at integrated circuit 121
DdThe interference that end causes when coming the buffered sources current break with a diode and a large bulk capacitance.In the present embodiment, the model of special IC 121 is 5G060, and five factories provide by the Shanghai element.Intend tone signal and produce part 13, by two CMOS intend sound circuit 131 and 132 and peripheral discrete component form.Wherein intend the generation circuit of sound circuit 131 for " ding-dong " sound, model is A5307, is provided by Hong Kong Hua Ke company.Intending sound circuit 132 is the generation circuit of police whistle sound, selects model MT2812D for use, is provided by purple rhythm company.As long as the plan sound circuit of selecting for use all is the level triggers circuit, so by a DPTT double-pole triple throw switch 4, finish K among Fig. 4
1And K
2Function, but the required plan tone signal of gating just.Audio frequency amplifier section 14 forms the serial connection amplifier by two triodes and acoustical generator 141 constitutes.
The groundwork circuit of present embodiment is made up of the CMOS integrated circuit, and Overall Power Consumption is minimum.Switch is in " OFF " shelves, and main frame is in " waiting for " duty, and quiescent current is below 50 microamperes, thereby omitted power switch.Complete machine was loaded onto battery after one minute, and sensor 9 and signal processing and amplifying part 12 just are in " waiting for " state always.Toggle switch 4 is to desired location, and complete machine is worked immediately, need not " built-in voltage " time about one minute.And cmos circuit is little 20 times than the power consumption of the ambipolar circuit of congenerous, thereby the battery life that is under " waiting for " state prolongs 20 times than common double polar form circuit.
This implements real overall dimensions is 100 millimeters * 64 millimeters * 35 millimeters, complete machine weight 105 gram, and loading onto behind the battery is 170 grams.
Claims (1)
1, a kind of passive infrared detection telltale rings device, dry cell, housing and universal adjusting device by infra-red detection device, electric signal processing and amplifying device, news and forms, and it is characterized in that:
A. said infra-red detection device is made up of double base pyroelectric sensor 9 and infrared combination Fresnel lens 2, combination Fresnel lens 2 is loaded in the ad hoc bayonet socket in the top of protecgulum 1 of housing, and pyroelectric sensor 9 is installed on the printed circuit board (PCB) 10, printed circuit board (PCB) 10 is fixed on the inner chamber top of housing bonnet 3, when the protecgulum 1 of housing and bonnet 3 close up lid when tight the photosurface of sensor 9 just be on the focal plane of Fresnel lens 2, and every group of lens cells of the double base of sensor 9 and column direction and combination Fresnel lens 2 also column direction is consistent;
B. said electric signal processing and amplifying device 12 is installed on the printed circuit board (PCB) 10, the electric signal of sensor 9 is delivered to electric signal processing and amplifying device 12 by biasing anti-clutter circuit 11, electric signal processing and amplifying device 12 is that special IC 121 and the peripheral discrete component thereof of 5G060 formed by model mainly, and special IC 121 is the integrated of the monostable chronotron be made up of two-stage amplifier, two-way comparer and oscillator, counter and output driving circuit;
C. said news are rung device 13 and also are installed on the printed circuit board (PCB) 10, and it intends the sound integrated circuit by two and peripheral discrete component is formed, and the model that ding-dong is intended sound integrated circuit 131 is A5307, and the type that siren is intended sound integrated circuit 132 is MT2812D; News are rung device 13 and are accepted the triggering enabling signal that electric signal processing and amplifying device 12 is sent here, handle the back to audio amplifier circuit 14 outputs, audio amplifier circuit 14 also is installed on the printed circuit board (PCB) 10, audio amplifier circuit is formed serial connection by triode and is amplified, its output is sent to acoustical generator 141, and acoustical generator 141 then is fixed on the bottom of housing protecgulum 1 inner chamber;
D. 4.5 volts of power supplys are by 8 power supplies of No. 5 batteries of three joints, and battery 8 is fixed on by battery folder in the battery compartment of bonnet 3 bottoms, be equipped with in the battery compartment outside with bonnet with the fixing battery compartment lid 7 of bayonet socket;
E. be equipped with on top, bonnet 3 side and be used for selecting main frame " to wait for " the DPTT double-pole triple throw switch 4 of state or required plan sound signal;
F. universal adjusting device is made up of rotatable pole ball 5 and adjustment seat 6, the pommel plug of pole ball 5 is in the ball chamber of adjustment seat 6, can support complete machine restfully, under certain external force, turn freely, the other end of pole ball 5 joins by a slide plate shape wedge mouth and bonnet 3, has to supply the fixedly standby hole of usefulness on adjustment seat 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221541 CN2137381Y (en) | 1992-10-30 | 1992-10-30 | Portable passive infrered detector-alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221541 CN2137381Y (en) | 1992-10-30 | 1992-10-30 | Portable passive infrered detector-alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2137381Y true CN2137381Y (en) | 1993-06-30 |
Family
ID=33768315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92221541 Expired - Lifetime CN2137381Y (en) | 1992-10-30 | 1992-10-30 | Portable passive infrered detector-alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2137381Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091913C (en) * | 1996-11-05 | 2002-10-02 | 三星电子株式会社 | Infrared object detector |
| CN100395780C (en) * | 2004-12-09 | 2008-06-18 | 广州南方电力集团科技发展有限公司 | Electronci alarming guard for separating dangerous area |
| CN101732052B (en) * | 2009-11-16 | 2011-08-17 | 清华大学 | Infrared measuring device and method for human motion modality |
| CN102289900A (en) * | 2011-07-19 | 2011-12-21 | 中山大学深圳研究院 | Method for responding to infrared music door bell and device of infrared music door bell |
| CN101706324B (en) * | 2009-10-16 | 2013-01-23 | 上海大亚科技有限公司 | Infrared detector with adjustable detection range |
-
1992
- 1992-10-30 CN CN 92221541 patent/CN2137381Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091913C (en) * | 1996-11-05 | 2002-10-02 | 三星电子株式会社 | Infrared object detector |
| CN100395780C (en) * | 2004-12-09 | 2008-06-18 | 广州南方电力集团科技发展有限公司 | Electronci alarming guard for separating dangerous area |
| CN101706324B (en) * | 2009-10-16 | 2013-01-23 | 上海大亚科技有限公司 | Infrared detector with adjustable detection range |
| CN101732052B (en) * | 2009-11-16 | 2011-08-17 | 清华大学 | Infrared measuring device and method for human motion modality |
| CN102289900A (en) * | 2011-07-19 | 2011-12-21 | 中山大学深圳研究院 | Method for responding to infrared music door bell and device of infrared music door bell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |