CN202974450U - People-sniffer with shutter device - Google Patents
People-sniffer with shutter device Download PDFInfo
- Publication number
- CN202974450U CN202974450U CN 201220588542 CN201220588542U CN202974450U CN 202974450 U CN202974450 U CN 202974450U CN 201220588542 CN201220588542 CN 201220588542 CN 201220588542 U CN201220588542 U CN 201220588542U CN 202974450 U CN202974450 U CN 202974450U
- Authority
- CN
- China
- Prior art keywords
- shutter device
- shutter
- pyroelectric sensor
- sniffer
- fixed mount
- 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
Images
Abstract
The utility model discloses a people-sniffer with a shutter device. The people-sniffer comprises a pyroelectric sensor, a Fresnel lens, a fixed frame, a signal amplifier, a shutter controller and the shutter device, wherein the Fresnel lens is installed on the fixed frame; the Fresnel lens and the fixed frame enclose to form a sniffer cavity which contains the pyroelectric sensor and the shutter device therein; the pyroelectric sensor and the shutter device are mounted on the fixed frame; the shutter device comprises a shielding piece which can be opened and closed; the shielding piece is positioned in front of the pyroelectric sensor; the shutter controller and the signal amplifier are mounted on the fixed frame; and the shutter controller is used to control the shielding piece to close and open the shutter device according to a certain time interval. According to the people-sniffer with the shutter device, through opening and closing the shutter device positioned in front of the pyroelectric sensor at regular time, human motion effect can be simulated from a static state so as to detect a human body in a static state. The people-sniffer provided by the utility model has a simple structure and is widely applied.
Description
Technical field
The utility model relates to a kind of peoplesniffer, particularly is applied to the peoplesniffer of Smart Home and safety-security area.
Background technology
Pyroelectric sensor claims again infrared sensor of the human body, is widely used in burglar alarm, the guest informs and the infrared field such as non-contact switch.Along with the fast development of intelligent home device, the peoplesniffer that pyroelectric sensor is made has become again the requisite assembly of intelligent home device.The principle of work of pyroelectric sensor is: piezoelectric ceramics class dielectric can keep polarized state after electric polarization, be called spontaneous polarization.Spontaneous polarization raises with temperature and reduces, and reduces to zero at Curie-point temperature.Therefore, when this material is subject to infrared radiation and temperature when raising, surface charge will reduce, and be equivalent to discharge a part of electric charge, therefore be called pyroelectricity.The electric charge that discharges be can be exchanged into Voltage-output through amplifier.But there is a shortcoming in this device: when radiation continues to act on the pyroelectricity element, when making its surface charge reach balance, just no longer discharge electric charge.Therefore, pyroelectric sensor can not be surveyed constant infrared radiation.Just because of this shortcoming, the human body that the existing peoplesniffer of being made by pyroelectric sensor can only detected event can't be surveyed the human body of stationary state, and insensitive to the detection of the radial motion of human body.Yet in the occasion of part high request, such as, meeting room, office or the higher occasion of other anti-theft grades need a kind of detector that can survey the stationary state human body.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of detector that can survey the stationary state human body.
For addressing the above problem, the scheme that the utility model adopts is:
A kind of peoplesniffer with shutter device comprises: pyroelectric sensor, Fresnel Lenses, fixed mount, signal amplifier, shutter controller, shutter device.Wherein, Fresnel Lenses is arranged on fixed mount, and Fresnel Lenses and fixed mount surround the detector cavity, includes pyroelectric sensor in the detector cavity, shutter device, and pyroelectric sensor, shutter device is arranged on fixed mount.But shutter device comprises the shielding plate of folding, and shielding plate is positioned at the pyroelectric sensor front.Shutter controller and signal amplifier are arranged on fixed mount.Shutter controller and signal amplifier can be positioned at the detector cavity, also can be outside the detector cavity.Signal amplifier is used for amplifying the output voltage of pyroelectric sensor.Shutter controller is used for controlling the shielding plate of closing and open shutter device by certain time interval.
The principle that the utility model is surveyed the illegal state human body is as follows: the infrared ray that human body sends is sent on the pyroelectric sensor of peoplesniffer by Fresnel Lenses, owing to comprising a shutter device of closing and opening by the certain hour interval in the pyroelectric sensor front, the infrared ray that the human body of stationary state sends, can only must arrive pyroelectric sensor in the compartment of terrain, thereby the signal and the non-constant infrared ray that make pyroelectric sensor receive simulate movement effects thereby the stationary state human body is sent the infrared ray that arrives pyroelectric sensor.
Technique effect of the present utility model:
The peoplesniffer of the utility model band shutter device is positioned at shutter device before pyroelectric sensor by timing switching, stationary state is simulated the effect of human motion, make peoplesniffer of the present utility model not only can survey the human body of motion state, can also survey the human body of stationary state.The utility model just adds a shutter device before existing peoplesniffer, thereby simple in structure, and is with a wide range of applications, and has satisfied the demanding use occasion of detection accuracy, brings high-quality and experience high-intelligentization for household and security protection.
Description of drawings
Fig. 1 is structural representation of the present utility model.Wherein Fresnel Lenses is hemispheric thin slice.
Fig. 2 is structural representation of the present utility model.Wherein Fresnel Lenses is plane lamina.
Fig. 3 is the structural representation of the utility model diaphragm shutter when closing.
Fig. 4 is the structural representation of the utility model diaphragm shutter when opening.
Fig. 5 is the structural representation of the utility model curtain shutter when closing.
Fig. 6 is the structural representation of the utility model curtain shutter when closing.
Fig. 7 is the side-looking structural representation of the utility model embodiment 4.Wherein shutter device is the vibrating type shutter.
Fig. 8 is the structural representation of the utility model vibrating type shutter.
Embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further the utility model is elaborated.
The basic structure of the peoplesniffer with shutter device of the present utility model as Fig. 1, Fig. 2, shown in Figure 7, comprises pyroelectric sensor 1, Fresnel Lenses 2, shutter device 3, fixed mount 4, signal amplifier 5, shutter controller 6.Wherein, Fresnel Lenses 2 is arranged on fixed mount 4, and Fresnel Lenses 2 surrounds the detector cavity with fixed mount 4.Pyroelectric sensor 1 and shutter device 3 are positioned at the detector cavity.The Fresnel Lenses 2 that Fig. 1 and Fig. 7 provide is hemispheric thin slice, and its detector cavity is also semisphere.The Fresnel Lenses 2 that Fig. 2 provides is plane lamina, 4 layers of tubular or square of fixed mount.Those skilled in the art know, the face shaping of peoplesniffer of the present utility model can also be other shapes.Pyroelectric sensor 1 and shutter device 3 all are mounted and fixed on fixed mount 4.Wherein, but shutter device 3 comprises the shielding plate 31 of folding, before shielding plate 31 is positioned at pyroelectric sensor 1.Signal amplifier 5, shutter controller 6 are arranged on fixed mount 4, can be positioned at the detector cavity, also can be positioned at outside the detector cavity.The signal amplifier 5, the shutter controller 6 that provide in Fig. 1 and Fig. 7 all are positioned at outside the detector cavity, and the signal amplifier 5 that provides in Fig. 2, shutter controller 6 all are positioned at the detector cavity.Those skilled in the art know fixed mount 4 except being used for the fixing human detector parts and building detector control chamber, also can comprise and be used to peoplesniffer is fixedly mounted on the device that uses point, such as, peoplesniffer is fixed on the wall, or be arranged on the device of air conditioner inside.Signal amplifier 5 is used for amplifying the output voltage of pyroelectric sensor 1.Shutter controller 6 is used for controlling the shielding plate 31 of closing and open shutter device 3 by certain time interval.
Shutter device can adopt the form of diaphragm shutter, and as shown in Figure 3, Figure 4, a plurality of shielding plates 31 are fixed on shutter base 32, and a plurality of shielding plates 31 surround circular.When shielding plate 31 closes, as shown in Figure 3.When shielding plate 31 is opened, as shown in Figure 4, by the shutter device of opening, can see inner pyroelectric sensor 1.
Shutter device can adopt the form of curtain shutter, and as Fig. 5, shown in Figure 6, a plurality of shielding plates 31 are fixed on shutter base 32, and a plurality of shielding plates 31 are the heavy curtain shape.When shielding plate 31 closes, as shown in Figure 5.When shielding plate 31 is opened, as shown in Figure 6, by the shutter device of opening, can see inner pyroelectric sensor 1.
Shutter device as Fig. 7, shown in Figure 8, comprises shielding plate 31 and concussion motor 33.Concussion motor 33 is arranged on fixed mount 4, and shielding plate 31 is arranged in the rotating shaft of concussion motor 33.Under the control of shutter controller 6, the rotating shaft of concussion motor 33 is done concussion and is swung, make shielding plate 31 do concussion before pyroelectric sensor 1 and swing, cover pyroelectric sensor 1 a little while, open pyroelectric sensor 1 can normally receive human body infrared a little while.
Comprehensively above-mentioned, the form of shutter device is a lot, is all respectively to have utilized existing camera shutter technology in embodiment 2 and 3.And in fact, it is a variety of that the camera shutter apparatus structure has, and those skilled in the art know and may be used to the utility model.
Claims (4)
1. the peoplesniffer with shutter device, is characterized in that, comprising: pyroelectric sensor, Fresnel Lenses, fixed mount, signal amplifier, shutter controller, shutter device; Wherein, Fresnel Lenses is arranged on fixed mount, and Fresnel Lenses and fixed mount surround the detector cavity; Include pyroelectric sensor and shutter device in the detector cavity; Pyroelectric sensor and shutter device are arranged on fixed mount; But shutter device comprises the shielding plate of folding, and shielding plate is positioned at the pyroelectric sensor front; Shutter controller and signal amplifier are arranged on fixed mount; Shutter controller is used for controlling the shielding plate of closing and open shutter device by certain time interval.
2. the peoplesniffer with shutter device as claimed in claim 1, is characterized in that, described shutter device is diaphragm shutter.
3. the peoplesniffer with shutter device as claimed in claim 1, is characterized in that, described shutter device is curtain shutter.
4. the peoplesniffer with shutter device as claimed in claim 1, is characterized in that, described shutter device also comprises the concussion motor; Described shielding plate is done concussion and is swung before pyroelectric sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588542 CN202974450U (en) | 2012-11-09 | 2012-11-09 | People-sniffer with shutter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588542 CN202974450U (en) | 2012-11-09 | 2012-11-09 | People-sniffer with shutter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974450U true CN202974450U (en) | 2013-06-05 |
Family
ID=48515509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220588542 Expired - Lifetime CN202974450U (en) | 2012-11-09 | 2012-11-09 | People-sniffer with shutter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202974450U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928091A (en) * | 2012-11-09 | 2013-02-13 | 南京天溯自动化控制系统有限公司 | Human body detector with shutter device |
| CN105093346A (en) * | 2015-05-19 | 2015-11-25 | 南京信息工程大学 | Infrared detection apparatus and method for detecting stationary human body and moving human body |
| CN109094477A (en) * | 2018-07-23 | 2018-12-28 | 惠州市德赛西威汽车电子股份有限公司 | A kind of vehicle-mounted camera anti-fouler |
-
2012
- 2012-11-09 CN CN 201220588542 patent/CN202974450U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928091A (en) * | 2012-11-09 | 2013-02-13 | 南京天溯自动化控制系统有限公司 | Human body detector with shutter device |
| CN105093346A (en) * | 2015-05-19 | 2015-11-25 | 南京信息工程大学 | Infrared detection apparatus and method for detecting stationary human body and moving human body |
| CN109094477A (en) * | 2018-07-23 | 2018-12-28 | 惠州市德赛西威汽车电子股份有限公司 | A kind of vehicle-mounted camera anti-fouler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202974450U (en) | People-sniffer with shutter device | |
| CN102928090A (en) | Human body detector with interval shielding device | |
| CN104422524B (en) | A kind of apparatus for detecting human body based on infrared heat source detection | |
| US10161801B2 (en) | Method and apparatus for detecting direction of motion with a passive sensor | |
| CN202903336U (en) | Human body detector based on liquid crystal light valve | |
| EP3452851B1 (en) | Capacitive sensor and method for sensing changes in a space | |
| US10782044B1 (en) | Thermostat technology | |
| CN205594850U (en) | Go -out prompt device | |
| CN103854404A (en) | Passive infrared detection warning device | |
| CN202869658U (en) | Human body detector with interval shielding device | |
| CN108475458A (en) | Window sensor device with mobile detection | |
| US10345332B2 (en) | Zero power sensors | |
| CN104200610A (en) | Monitoring system | |
| CN203759812U (en) | Passive type infrared detection alarm device | |
| CN102928091A (en) | Human body detector with shutter device | |
| KR101626452B1 (en) | Method of Separation and Control of Magnetic Signal for Detectry Invasion | |
| CN207409080U (en) | A kind of door magnetism device | |
| CN102928092A (en) | Human body detector based on liquid crystal light valve | |
| TW201327485A (en) | Device capable of protecting alarming siren and method for protecting alarming siren | |
| CN205193969U (en) | Intelligent power distribution control case with alarm device | |
| CN207422348U (en) | A kind of Intelligent bathroom heating installation | |
| CN202903337U (en) | Static human body detector based on electromagnet | |
| WO2016092536A1 (en) | Earthquake detector and method for detecting earthquakes | |
| JP4357876B2 (en) | Multivariate detection sensor and physical quantity identification method using the same | |
| US9933296B2 (en) | Lens for pet rejecting passive infrared sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |