CN110470402A - A kind of body state detection device and method based on pyroelectricity technology - Google Patents
A kind of body state detection device and method based on pyroelectricity technology Download PDFInfo
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- CN110470402A CN110470402A CN201910669282.7A CN201910669282A CN110470402A CN 110470402 A CN110470402 A CN 110470402A CN 201910669282 A CN201910669282 A CN 201910669282A CN 110470402 A CN110470402 A CN 110470402A
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- 238000001514 detection method Methods 0.000 title claims abstract description 59
- 238000005516 engineering process Methods 0.000 title claims abstract description 23
- 230000005616 pyroelectricity Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 36
- 238000004364 calculation method Methods 0.000 claims description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 239000013078 crystal Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J5/0025—Living bodies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/34—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using capacitors, e.g. pyroelectric capacitors
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- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of body state detection devices based on pyroelectricity technology, including central processing system and acquisition system, the input terminal of central processing system is electrically connected by the output end of conducting wire and feedback module, the input terminal of feedback module is electrically connected by conducting wire and the output end of acquisition system, acquisition system includes pyroelectric sensor, the output end of pyroelectric sensor is electrically connected by the input terminal of conducting wire and digital analog converter, and the output end of digital analog converter is electrically connected by the input terminal of conducting wire and microcontroller, the present invention relates to body state detection technique fields.The body state detection device and method based on pyroelectricity technology, the achievable appearance that can judge whether there is human body target, the moving direction of stream of people's state and human body target can also be obtained in real time simultaneously, so that the Studies of Human Body Heat infrared information that the detection device detects has accuracy and high efficiency, the practicability of the detection device is improved.
Description
Technical field
The present invention relates to body state detection technique field, specially a kind of body state detection based on pyroelectricity technology
Device and method.
Background technique
Pyroelectric effect refers to the charge release phenomenon that polarization intensity changes with temperature and shows, and is macroscopically temperature
Change makes voltage occur at the both ends of material or generates electric current, and pyroelectric effect is similar with piezoelectric effect, and pyroelectric effect is also
A kind of natural physical effect of crystal, for the polarized crystal of self start type, after crystal is heated or cooling, due to temperature
Change (△ T) and self start type polarization intensity is caused to change (△ Ps), to generate Surface Polarized Charge in crystal certain orientation
The phenomenon that referred to as pyroelectric effect.
What the existing mode to body state detection was mostly realized by pyroelectricity technology, but can only be in a certain range
Whether have human body target, the moving direction and stream of people's data for human body target can not be detected accurately if inside detecting, knows
Not rate is lower, is easy to produce certain error, thus greatly reduces the practicability of the detection device.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of body state detection device based on pyroelectricity technology and
Method, solve existing pyroelectricity technology can not moving direction to human body target and stream of people's data accurately carry out detection to
The problem of reducing detection device practicability.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of people based on pyroelectricity technology
Body condition checkout gear, including central processing system and acquisition system, the input terminal of the central processing system by conducting wire with
The output end of feedback module is electrically connected, and the input terminal of the feedback module is electrically connected by the output end of conducting wire and acquisition system
It connects, the acquisition system includes pyroelectric sensor, and the output end of the pyroelectric sensor passes through conducting wire and digital analog converter
Input terminal be electrically connected, and the output end of digital analog converter is electrically connected by the input terminal of conducting wire and microcontroller, institute
The output end of microcontroller is stated to be electrically connected by conducting wire and the input terminal of statistical calculation module, the microcontroller it is defeated
Enter end to be electrically connected by the output end of conducting wire and threshold setting module, the central processing system by wirelessly with wireless transmission
Module realization is bi-directionally connected.
Preferably, the wireless transport module with display unit realization by being wirelessly bi-directionally connected, the central processing system
System with storage unit realization by being wirelessly bi-directionally connected.
Preferably, the input terminal of the central processing system is electrically connected by the output end of conducting wire and power module, and
The output end of power module is electrically connected by conducting wire and the input terminal of acquisition system.
Preferably, the central processing system with the realization of system security maintenance module by being wirelessly bi-directionally connected.
Preferably, the display unit includes transcriber, the output end of the transcriber by conducting wire with it is micro-
The input terminal of type processor is electrically connected.
Preferably, the microprocessor with information-storing device realization by being wirelessly bi-directionally connected, the microprocessor
Output end be electrically connected by the input terminal of conducting wire and liquid crystal display.
Preferably, the central processing system with the realization of information retrieval extraction module by being wirelessly bi-directionally connected.
The invention also discloses a kind of detection methods of body state detection device based on pyroelectricity technology, specifically include
Following steps:
S1, the thermal infrared information that human body can be collected by the pyroelectric sensor in acquisition system, since the information is
Analog information converts this information into digital signal so being sent in digital analog converter, is then forwarded in microcontroller,
The threshold value of one standard is set by threshold setting module, is then forwarded in microcontroller, microcontroller is to the information
It after being pre-processed, is transmitted in statistical calculation module, operation judgement is carried out in statistical calculation module；
If S2, according to the result to generate in S1 be more than setting threshold value, can judge have in detection range
The appearance of human body target illustrates that human body target has entered detection zone, if operation result is if operation result is positive
It is negative, then illustrate that human body target has walked out detection zone, while the number of detection zone human body disengaging can be calculated, distinguishes simultaneously
Into the number and the number of detection zone out of detection zone, these data are then sent to central processing system by feedback module
System is internal, then is sent in storage unit and is saved by central processing system；
S3, simultaneously the data information in storage unit can be sent to by transcriber by wireless transport module it is micro-
In type processor, then be sent on liquid crystal display and show after being uniformly processed by microprocessor, can show into and out of
Number, time and the total number of both direction, facilitate the detection of monitoring personnel, and this completes entire work.
(3) beneficial effect
The present invention provides a kind of body state detection devices and method based on pyroelectricity technology.Have following beneficial to effect
Fruit:
(1), it is somebody's turn to do body state detection device and method based on pyroelectricity technology, passes through the input terminal of central processing system
It is electrically connected by the output end of conducting wire and feedback module, the input terminal of feedback module passes through the output end of conducting wire and acquisition system
It is electrically connected, acquisition system includes pyroelectric sensor, and the output end of pyroelectric sensor passes through conducting wire and digital analog converter
Input terminal is electrically connected, and the output end of digital analog converter is electrically connected by the input terminal of conducting wire and microcontroller, miniature
The output end of controller is electrically connected by conducting wire and the input terminal of statistical calculation module, and the input terminal of microcontroller is by leading
The output end of line and threshold setting module is electrically connected, and central processing system is by wirelessly realizing two-way company with wireless transport module
It connects, wireless transport module with display unit realization by being wirelessly bi-directionally connected, and central processing system is by wirelessly and storage unit
Realization is bi-directionally connected, and display unit includes transcriber, and the output end of transcriber passes through conducting wire and microprocessor
Input terminal is electrically connected, and microprocessor with information-storing device realization by being wirelessly bi-directionally connected, the output end of microprocessor
It is electrically connected by the input terminal of conducting wire and liquid crystal display, central processing system passes through wirelessly real with information retrieval extraction module
It is now bi-directionally connected, it can be achieved that the appearance of human body target can be judged whether there is in detection range, while can also be obtained in real time
The moving direction of stream of people's state and human body target, so that the Studies of Human Body Heat infrared information that the detection device detects has accuracy
And high efficiency, substantially increase the practicability of the detection device.
(2), it is somebody's turn to do body state detection device and method based on pyroelectricity technology, is passed through by central processing system wireless
It is bi-directionally connected with storage unit realization, central processing system, can by being wirelessly bi-directionally connected with the realization of system security maintenance module
Realization saves the human body target information that the detection device detected in real time, facilitates subsequent searching work, simultaneously
The setting of system security maintenance module can work to the whole service of system and play certain protective action.
Detailed description of the invention
Fig. 1 is the structural principle block diagram of present system；
Fig. 2 is that the invention shows the structural principle block diagrams of unit.
In figure: 1- central processing system, 2- acquisition system, 21- pyroelectric sensor, 22- digital analog converter, 23- are miniature
Controller, 24- statistical calculation module, 3- feedback module, 4- threshold setting module, 5- wireless transport module, 6- display unit,
61- transcriber, 62- microprocessor, 63- information-storing device, 64- liquid crystal display, 7- storage unit, 8- power supply mould
Block, 9- system security maintenance module, 10- information retrieval extraction module.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of technical solution referring to FIG. 1-2: a kind of body state based on pyroelectricity technology
Detection device in detection range, it can be achieved that can judge whether there is the appearance of human body target, while can also obtain people in real time
The moving direction of stream mode and human body target so that the Studies of Human Body Heat infrared information that detects of the detection device have accuracy with
And high efficiency, substantially increase the practicability of the detection device, including central processing system 1 and acquisition system 2, central processing system
The input terminal of system 1 is electrically connected by the output end of conducting wire and feedback module 3, and the input terminal of feedback module 3 passes through conducting wire and adopts
The output end of collecting system 2 is electrically connected, and acquisition system 2 includes pyroelectric sensor 21, and pyroelectric sensor 21 is a kind of sensing
Device, nickname infrared sensor of the human body, informed for the burglar alarm of life, guest etc., principle is will to discharge charge through amplifier
Switching to voltage output, the output end of pyroelectric sensor 21 is electrically connected by the input terminal of conducting wire and digital analog converter 22, and
The output end of digital analog converter 22 is electrically connected by the input terminal of conducting wire and microcontroller 23, and digital analog converter 22 is also known as D/
A converter, abbreviation DAC, it is the device for digital quantity being transformed into simulation, and D/A converter is substantially made of 4 parts, i.e.,
The output end of weighted resistance network, operational amplifier, reference power supply and analog switch, microcontroller 23 is transported by conducting wire and statistics
The input terminal for calculating module 24 is electrically connected, and the input terminal of microcontroller 23 passes through the output end of conducting wire and threshold setting module 4
It is electrically connected, central processing system 1 with the realization of wireless transport module 5 by being wirelessly bi-directionally connected.
In the present invention, for wireless transport module 5 by being wirelessly bi-directionally connected with the realization of display unit 6, central processing system 1 is logical
It crosses and is wirelessly bi-directionally connected with the realization of storage unit 7, it can be achieved that being carried out to the human body target information that the detection device detected real
Shi Baocun facilitates subsequent searching work.
In the present invention, the input terminal of central processing system 1 is electrically connected by the output end of conducting wire and power module 8, and
The output end of power module 8 is electrically connected by conducting wire and the input terminal of acquisition system 2.
In the present invention, central processing system 1 with the realization of system security maintenance module 9 by being wirelessly bi-directionally connected, system peace
The setting of full maintenance module 9 can work to the whole service of system and play certain protective action.
In the present invention, display unit 6 includes transcriber 61, the output end of transcriber 61 by conducting wire with it is miniature
The input terminal of processor 62 is electrically connected.
In the present invention, microprocessor 62 with the realization of information-storing device 63 by being wirelessly bi-directionally connected, microprocessor 62
Output end be electrically connected by the input terminal of conducting wire and liquid crystal display 64.
In the present invention, central processing system 1 with the realization of information retrieval extraction module 10 by being wirelessly bi-directionally connected.
The invention also discloses a kind of detection methods of body state detection device based on pyroelectricity technology, specifically include
Following steps:
S1, the thermal infrared information that human body can be collected by the pyroelectric sensor 21 in acquisition system 2, due to the information
For analog information, digital signal is converted this information into so being sent in digital analog converter 22, is then forwarded to miniature control
In device 23, the threshold value of a standard is set by threshold setting module 4, is then forwarded in microcontroller 23, miniature control
It after device 23 pre-processes the information, is transmitted in statistical calculation module 24, operation is carried out in statistical calculation module 24 and is sentenced
It is disconnected；
If S2, according to the result to generate in S1 be more than setting threshold value, can judge have in detection range
The appearance of human body target illustrates that human body target has entered detection zone, if operation result is if operation result is positive
It is negative, then illustrate that human body target has walked out detection zone, while the number of detection zone human body disengaging can be calculated, distinguishes simultaneously
Into the number and the number of detection zone out of detection zone, these data are then sent to central processing by feedback module 3
Inside system 1, then it is sent in storage unit 7 and is saved by central processing system 1；
S3, the data information in storage unit 7 can be sent out by transcriber 61 by wireless transport module 26 simultaneously
It send into microprocessor 62, then is sent on liquid crystal display 64 and shows after being uniformly processed by microprocessor 62
Come, can show the number into and out of both direction, time and total number, facilitate the detection of monitoring personnel, thus complete
Entire work.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of body state detection device based on pyroelectricity technology, including central processing system (1) and acquisition system (2),
The input terminal of the central processing system (1) is electrically connected by conducting wire and the output end of feedback module (3), it is characterised in that:
The input terminal of the feedback module (3) is electrically connected by conducting wire and the output end of acquisition system (2), the acquisition system (2)
Including pyroelectric sensor (21), the output end of the pyroelectric sensor (21) is defeated by conducting wire and digital analog converter (22)
Enter end to be electrically connected, and the output end of digital analog converter (22) is electrically connected by the input terminal of conducting wire and microcontroller (23)
It connects, the output end of the microcontroller (23) is electrically connected by conducting wire and the input terminal of statistical calculation module (24), described
The input terminal of microcontroller (23) is electrically connected by conducting wire and the output end of threshold setting module (4), the central processing
System (1) is bi-directionally connected by wirelessly realizing with wireless transport module (5).
2. a kind of body state detection device based on pyroelectricity technology according to claim 1, it is characterised in that: described
Wireless transport module (5) is bi-directionally connected by wirelessly realizing with display unit (6), and the central processing system (1) passes through wireless
It realizes and is bi-directionally connected with storage unit (7).
3. a kind of body state detection device based on pyroelectricity technology according to claim 1, it is characterised in that: described
The input terminal of central processing system (1) is electrically connected by conducting wire and the output end of power module (8), and power module (8)
Output end is electrically connected by conducting wire and the input terminal of acquisition system (2).
4. a kind of body state detection device based on pyroelectricity technology according to claim 1, it is characterised in that: described
Central processing system (1) with system security maintenance module (9) realization by being wirelessly bi-directionally connected.
5. a kind of body state detection device based on pyroelectricity technology according to claim 2, it is characterised in that: described
Display unit (6) includes transcriber (61), and the output end of the transcriber (61) passes through conducting wire and microprocessor
(62) input terminal is electrically connected.
6. a kind of body state detection device based on pyroelectricity technology according to claim 5, it is characterised in that: described
Microprocessor (62) is bi-directionally connected by wirelessly realizing with information-storing device (63), the output end of the microprocessor (62)
It is electrically connected by conducting wire and the input terminal of liquid crystal display (64).
7. a kind of body state detection device based on pyroelectricity technology according to claim 1, it is characterised in that: described
Central processing system (1) is bi-directionally connected by wirelessly realizing with information retrieval extraction module (10).
8. a kind of body state detection device based on pyroelectricity technology described in -7 any one according to claim 1, special
Sign is: its detection method specifically includes the following steps:
S1, the thermal infrared information that human body can be collected by the pyroelectric sensor (21) in acquisition system (2), due to the information
For analog information, digital signal is converted this information into so being sent in digital analog converter (22), is then forwarded to miniature control
In device (23) processed, the threshold value of a standard is set by threshold setting module (4), is then forwarded in microcontroller (23),
After microcontroller (23) pre-processes the information, it is transmitted in statistical calculation module (24), in statistical calculation module
(24) operation judgement is carried out in；
If S2, according to the result to generate in S1 be more than setting threshold value, can judge there is human body in detection range
The appearance of target illustrates that human body target has entered detection zone if operation result is positive, if operation result is negative,
Illustrate that human body target has walked out detection zone, while the number of detection zone human body disengaging can be calculated, while distinguishing into inspection
Then these data are sent to central processing system by feedback module (3) by the number in survey region and the out number of detection zone
System (1) is internal, then is sent in storage unit (7) and is saved by central processing system (1)；
S3, simultaneously can be by the data information in storage unit (7) by transcriber (61) by wireless transport module (26)
It is sent in microprocessor (62), then is sent on liquid crystal display (64) after being uniformly processed by microprocessor (62)
It shows, can show the number into and out of both direction, time and total number, facilitate the detection of monitoring personnel, in this way
Just complete entire work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910669282.7A CN110470402A (en) | 2019-07-24 | 2019-07-24 | A kind of body state detection device and method based on pyroelectricity technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910669282.7A CN110470402A (en) | 2019-07-24 | 2019-07-24 | A kind of body state detection device and method based on pyroelectricity technology |
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| CN110470402A true CN110470402A (en) | 2019-11-19 |
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| CN201910669282.7A Pending CN110470402A (en) | 2019-07-24 | 2019-07-24 | A kind of body state detection device and method based on pyroelectricity technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112529140A (en) * | 2020-12-07 | 2021-03-19 | 深圳江行联加智能科技有限公司 | Infrared temperature sensing people counting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167034A (en) * | 2014-06-17 | 2014-11-26 | 武汉理工大学 | Human body counting device based on pyroelectric technology |
| CN105890770A (en) * | 2016-04-11 | 2016-08-24 | 武汉理工大学 | Human body state detection device based on pyroelectric technology |
| CN206574235U (en) * | 2016-12-02 | 2017-10-20 | 北京三快在线科技有限公司 | A kind of start-up circuit and body state detection means |
| CN208016088U (en) * | 2018-04-12 | 2018-10-26 | 浙江磐至科技有限公司 | Intelligent lighting system |
-
2019
- 2019-07-24 CN CN201910669282.7A patent/CN110470402A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167034A (en) * | 2014-06-17 | 2014-11-26 | 武汉理工大学 | Human body counting device based on pyroelectric technology |
| CN105890770A (en) * | 2016-04-11 | 2016-08-24 | 武汉理工大学 | Human body state detection device based on pyroelectric technology |
| CN206574235U (en) * | 2016-12-02 | 2017-10-20 | 北京三快在线科技有限公司 | A kind of start-up circuit and body state detection means |
| CN208016088U (en) * | 2018-04-12 | 2018-10-26 | 浙江磐至科技有限公司 | Intelligent lighting system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112529140A (en) * | 2020-12-07 | 2021-03-19 | 深圳江行联加智能科技有限公司 | Infrared temperature sensing people counting device |
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