CN208351654U - A kind of voice prompting function passive infrared detection early warning system - Google Patents
A kind of voice prompting function passive infrared detection early warning system Download PDFInfo
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- CN208351654U CN208351654U CN201820377365.XU CN201820377365U CN208351654U CN 208351654 U CN208351654 U CN 208351654U CN 201820377365 U CN201820377365 U CN 201820377365U CN 208351654 U CN208351654 U CN 208351654U
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Abstract
The utility model discloses a kind of voice prompting function passive infrared detection early warning systems, including MCU, signal conditioning module, AD conversion module, wireless transmitter module, pir sensor, environment temperature detection module, voice reminder module, LED flashes module and high-energy battery supply system, the MCU is separately connected database, wireless transmitter module, environment temperature detection module, voice reminder module, LED flashes module and high-energy battery supply system, the beneficial effects of the utility model are: 1, it can be good at distinguishing the difference of invasion human body and pet, to effectively reduce rate of false alarm；2, outdoors in use, anti-sun light effect is good；3, using solar charging power technology, cooperate high-energy polymer battery, open air uses almost without maintenance.
Description
Technical field
The utility model relates to alarm system, specifically a kind of voice prompting function passive infrared detection early warning system.
Background technique
Any object of nature, all can outside infrared radiation, passive detection device can detecte mobile human body infrared ray
Situation of change, alarm can be generated when finding that someone is mobile；Critical element there are two in passive infrared detector, one
A is pyroelectric infrared sensor, and it is electric signal that wavelength can be infrared signal change transitions between 8-12um by it, and energy
It is inhibited to the white light signal in nature, therefore in the security area of passive infrared detector, when no human motion
When, the only ambient temperature that pyroelectric infrared sensor senses, when human body is into people security area, pyroelectric infrared sensor incudes
To be human body temperature and ambient temperature difference signal, therefore, the basic conception of the infrared acquisition of infrared detector is exactly to feel
Answer the difference of the temperature of mobile object and background object.Another device is exactly Fresnel Lenses, and Fresnel Lenses has poly-
Effect burnt and that the infrared signal of human body radiation is divided into area pellucida dark space, enables the mobile human body into security area to become with temperature
The form of change generates variation heat on pyroelectric infrared sensor and releases infrared signal, and such pyroelectric infrared sensor can generate
The electric signal of variation.Most passive infrared detector on the market all uses analog signal processing, sensor unit is sent
The electric signal come carries out a degree of amplification and filtering, is then fed into comparison circuit, sets a fixed level threshold values, from
And stable alarm signal is generated, and human body and pet signal cannot be distinguished in this device, in amplification deterministic process, pet letter
Number it equally can produce alarm.
Utility model content
The purpose of this utility model is to provide a kind of voice prompting function passive infrared detection early warning systems, on solving
State the problem of proposing in background technique.
To achieve the above object, the utility model provides the following technical solutions:
A kind of voice prompting function passive infrared detection early warning system, including MCU, signal conditioning module, AD conversion module,
Wireless transmitter module, pir sensor, environment temperature detection module, voice reminder module, LED flash module and high-energy battery supplies
System is answered, the MCU is separately connected database, wireless transmitter module, environment temperature detection module, voice reminder module, LED and dodges
The optical signal of dynamic model block and high-energy battery supply system, pir sensor acquisition optical filter and Fresnel Lenses is simultaneously transferred to signal
Conditioning circuit, signal conditioning circuit are also connected with signal AD conversion module, and signal AD conversion module is also connected with MCU, and high-energy battery supplies
It answers system to be also connected with pir sensor, signal conditioning module, LED and flashes module and solar battery.
Further technical solution as the utility model: including digital signal processing module, Fourier inside the MCU
Analysis module and wireless protocols.
Further technical solution as the utility model: the database includes human body and various pet data.
Compared with prior art, the utility model has the beneficial effects that 1, can be good at distinguishing invasion human body and dote on
The difference of object, to effectively reduce rate of false alarm；2, outdoors in use, anti-sun light effect is good；3, using solar charging
Power technology, cooperates high-energy polymer battery, and open air uses almost without maintenance.
Detailed description of the invention
Fig. 1 is the circuit block diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, a kind of voice prompting function passive infrared detection early warning system, including MCU, signal conditioning module,
AD conversion module, wireless transmitter module, pir sensor, environment temperature detection module, voice reminder module, LED flash module and
High-energy battery supply system, the MCU are separately connected database, wireless transmitter module, environment temperature detection module, voice reminder
Module, LED flash module and high-energy battery supply system, and pir sensor acquires the optical signal of optical filter and Fresnel Lenses simultaneously
It is transferred to signal conditioning circuit, signal conditioning circuit is also connected with signal AD conversion module, and signal AD conversion module is also connected with MCU,
High-energy battery supply system is also connected with pir sensor, signal conditioning module, LED and flashes module and solar battery.
It include digital signal processing module, Fourier analysis module and wireless protocols inside MCU.Database include human body and
Various pet data.
The working principle of the utility model is: the utility model is made that following improvement for the prior art:
1, relatively high for the rate of false alarm of most of product currently on the market, stability is insufficient, and invasion human body cannot be distinguished
It is high so as to cause rate of false alarm and rate of failing to report with toy (flying bird, bat, rodent, cat, dog etc.).In this regard, we
Using Fourier transformation is used, the analytical calculation of various dimensions, the parameter of comparison database, thus smart are carried out to passive infrared signal
Quasi- judges between invasion human body or pet, the analysis to the passive infrared signal depth, various dimensions that detect, from
And the invasion of human body and pet is distinguished, greatly reduce rate of false alarm；
2, it using solar powered and polymer battery, and uses micro energy lose and designs, it is several with that can play outdoors
It is non-maintaining in year；
3, built-in multiple voice (client is voluntarily optional) can sending sound in time after someone enters detection defended area
Sound is reminded, and has high-brightness LED flashing.
4, increase the optical filter of anti-sunlight.
5, band remote control cloth is withdrawn a garrison function, meets client the needs of different occasions are installed；
6, alert, can be transferred to alarm host machine in time by band radio gang function；
7, it can be used as small-sized " host ", access other wireless devices, play the role of alarm linkage.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (3)
1. a kind of voice prompting function passive infrared detection early warning system, including MCU, signal conditioning module, AD conversion module, nothing
Line transmitting module, pir sensor, environment temperature detection module, voice reminder module, LED flash module and high-energy battery supply
System, which is characterized in that the MCU is separately connected database, wireless transmitter module, environment temperature detection module, voice reminder
Module, LED flash module and high-energy battery supply system, and pir sensor acquires the optical signal of optical filter and Fresnel Lenses simultaneously
It is transferred to signal conditioning circuit, signal conditioning circuit is also connected with signal AD conversion module, and signal AD conversion module is also connected with MCU,
High-energy battery supply system is also connected with pir sensor, signal conditioning module, LED and flashes module and solar battery.
2. a kind of voice prompting function passive infrared detection early warning system according to claim 1, which is characterized in that described
It include digital signal processing module, Fourier analysis module and wireless protocols inside MCU.
3. a kind of voice prompting function passive infrared detection early warning system according to claim 1, which is characterized in that described
Database includes human body and pet data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820377365.XU CN208351654U (en) | 2018-03-20 | 2018-03-20 | A kind of voice prompting function passive infrared detection early warning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820377365.XU CN208351654U (en) | 2018-03-20 | 2018-03-20 | A kind of voice prompting function passive infrared detection early warning system |
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| Publication Number | Publication Date |
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| CN208351654U true CN208351654U (en) | 2019-01-08 |
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| CN201820377365.XU Expired - Fee Related CN208351654U (en) | 2018-03-20 | 2018-03-20 | A kind of voice prompting function passive infrared detection early warning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243780A (en) * | 2019-07-16 | 2019-09-17 | 国网湖南省电力有限公司 | A kind of Internet of Things type power transformer environment monitoring device |
-
2018
- 2018-03-20 CN CN201820377365.XU patent/CN208351654U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243780A (en) * | 2019-07-16 | 2019-09-17 | 国网湖南省电力有限公司 | A kind of Internet of Things type power transformer environment monitoring device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |