CN205049760U - Infrared detecting device that detectable is static and motion is human - Google Patents
Infrared detecting device that detectable is static and motion is human Download PDFInfo
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- CN205049760U CN205049760U CN201520326173.2U CN201520326173U CN205049760U CN 205049760 U CN205049760 U CN 205049760U CN 201520326173 U CN201520326173 U CN 201520326173U CN 205049760 U CN205049760 U CN 205049760U
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- human body
- pyroelectric sensor
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Abstract
The utility model discloses an infrared detecting device that detectable is static and motion is human through the position in hole on the trompil baffle of location, makes the hole just to pyroelectric sensor, realizes that the motion is human to detect, and need not the motor and work always, sheltering from infrared sensor to static human the detection through control baffle periodicity, making the sensor output become pulse signal, through the difference of judging the pulse signal peak -to -peak value, it maybe deny someone to establish. The utility model discloses a peak -to -peak value discernment of judging the signal whether someone, improved the accuracy of discernment greatly, and simultaneously, the utility model discloses use a sensor can detect motion and static human body simultaneously, the motor is only worked when detecting static human body moreover to avoid other active pyroelectric sensor to let the motor operate for detecting static human body always, caused the energy extravagant.
Description
Technical field
The utility model relates to a kind of infrared detection device, particularly relates to a kind of infrared detection device detecting Stillness and motion human body, belongs to infrared detection field.
Background technology
Infrared radiation is very general at occurring in nature, as long as its temperature of any object is higher than absolute zero DEG C, just has infrared ray space radiation towards periphery.Pyroelectric infrared sensor is mainly made up of a kind of detecting element of high Seebeck coefficient, when temperature variation, their spontaneous polarization strength changes, thus produce the bound charge of contrary sign at their two ends and in each detector, load two detecting elements, and by two detecting elements with opposite polarities in series, to be detected by detecting element and the infrared radiation received is transformed into faint voltage signal, amplify backward outer output through the field effect transistor be contained in probe.
Pyroelectric infrared sensor can only carry out passive type work, stationary object can not be detected, and signal amplitude is little, now the most frequently used pyroelectric infrared sensor is double base pyroelectric infrared sensor, and only when within the scope of Sensor monitoring, temperature changes, pyroelectric effect just can produce electric charge on two electrodes, produce a weak voltage between electrodes, when ambient temperature-stable is constant, sensor no-output, so cannot detect static human body.
In order to detect static human body, comprehensive existing patent, be substantially divided into two kinds of methods, first kind of way utilizes relative motion, makes sensor and human body produce relative motion.What utilize relative motion is divided into again three kinds, the first be pir sensor is moved as publication number be CN200989946, CN102510601A; The second makes Fresnel Lenses move, if publication number is CN102230824A, CN201983863U; The third makes pir sensor move together with Fresnel Lenses, as CN102510601A, CN102510640A, CN103278245A, CN103399351A, CN201766566U.But profit in this way all have ignored sensor movement time, Infrared in environment also defines motion with it, even if still can produce output in the unmanned situation of pyroelectric sensor, and be nearly all carrying out relative motion during working sensor, device loss is large and have noise always.
The second way utilizes chopper principle, blocks sensor by a baffle plate, makes the Infrared in environment become the infrared input of pulsed.As patent publication No. CN103148946A, CN101922462A, CN102928090A, CN103148946A, CN201234378Y.But this several motor that nearly all makes is rotating, and not only brings the waste of great power consumption always, the loss of motor continued operation is large and environment can have noise always.And publication number is in CN201234378Y, although the not multiple sensor of a direct-open motor, not only increase the consumption of cost, also give the volume of detector and mounting strap very large impact.
Utility model content
Technical problem to be solved in the utility model provides a kind of infrared detection device and the method that detect Stillness and motion human body for the deficiency of background technology, and it can adopt a pyroelectric sensor to realize the human detection of Stillness and motion.
The utility model is for solving the problems of the technologies described above by the following technical solutions
A kind of infrared detection device detecting Stillness and motion human body, comprise cylindrical case, fixed head, baffle plate, motor, controller, pyroelectric sensor, setting element, magnet and circular hole, described cylindrical case one end is closed, it is inner and perpendicular to cylindrical case inwall that described fixed head is arranged at cylindrical case, described baffle plate is parallel with fixed head and be connected with the rotation axis of motor respectively, described pyroelectric sensor and setting element are arranged on fixed head and position and are centrosymmetric relative to the center of circle of fixed head, described motor is arranged on the Central Symmetry point of fixed head, described magnet and circular hole are arranged on baffle plate and position and are centrosymmetric relative to the center of circle of baffle plate, described setting element and magnet positions are corresponding up and down, described pyroelectric sensor is corresponding up and down with circular hole position, pyroelectric sensor treatment circuit, setting element testing circuit, motor drive module and power driving circuit that described controller comprises micro controller module and is connected with micro controller module, described pyroelectric sensor treatment circuit connects pyroelectric sensor, described setting element testing circuit connects setting element, and described motor drive module is connected motor respectively with power driving circuit.
As a kind of further preferred version detecting the infrared detection device of Stillness and motion human body of the utility model, the chip model of described pyroelectric sensor is KDS209.
As a kind of further preferred version detecting the infrared detection device of Stillness and motion human body of the utility model, described setting element adopts Hall element.
As a kind of further preferred version detecting the infrared detection device of Stillness and motion human body of the utility model, described micro controller module adopts STC series monolithic.
As a kind of further preferred version detecting the infrared detection device of Stillness and motion human body of the utility model, the chip model of described Hall element is A3144.
The utility model adopts above technical scheme compared with prior art, has following technique effect:
1, the utility model adopts pyroelectric sensor to detect Stillness and motion human body, and by the location to position, hole, makes motor can meet proper motion without the need to continued operation and static human body detects;
2, the motor that drive motion components of the present utility model is rotated can select conventional direct current generator, with low cost, and there is no too large requirement for motor speed, coordinates locating device or controls motor anglec of rotation method, control the stop position of baffle holes;
3, the utility model realizes utilizing a sensor can realize two states detection simultaneously, and structure is simplified, and volume is little;
4, microprocessor sensor output voltage waveform of the present utility model judges whether to there is static human body by peak-to-peak value, and False Rate is low, realizes easily.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model;
Fig. 2 is the structural principle block diagram of the utility model controller
Fig. 3 is movement human detection signal treatment circuit of the present utility model;
Fig. 4 is static human body detection signal treatment circuit of the present utility model;
The connection layout of Fig. 5 the utility model setting element and motor and single-chip microcomputer;
Fig. 6 is the driving circuit figure that the utility model microprocessor controls.
Number in the figure is specific as follows: 1-cylindrical case, 2-thermoelectric transducer, 3-circular hole, 4-motor, 5-fixed head, 6-baffle plate, 7-controller, 8-setting element, 9-magnet.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail:
As shown in Figure 1, a kind of infrared detection device detecting Stillness and motion human body, comprise cylindrical case 1, fixed head 5, baffle plate 6, motor 4, controller 7, pyroelectric sensor 2, setting element 8, magnet 9 and circular hole 3, described cylindrical case one end is closed, it is inner and perpendicular to cylindrical case 1 inwall that described fixed head 5 is arranged at cylindrical case 1, described baffle plate 6 is parallel with fixed head 5 and be connected with the rotation axis of motor 4 respectively, described pyroelectric sensor 2 and setting element 8 are arranged on fixed head 5 and position and are centrosymmetric relative to the center of circle of fixed head 5, described motor 4 is arranged on the Central Symmetry point of fixed head 5, described magnet 9 and circular hole 3 are arranged on baffle plate 6 and position and are centrosymmetric relative to the center of circle of baffle plate 6, described setting element 8 is corresponding up and down with magnet 9 position, described pyroelectric sensor 2 is corresponding up and down with circular hole 3 position, as shown in Figure 2, pyroelectric sensor treatment circuit, setting element testing circuit, motor drive module and power driving circuit that described controller 7 comprises micro controller module and is connected with micro controller module, described pyroelectric sensor treatment circuit connects pyroelectric sensor 2, described setting element testing circuit connects setting element 8, and described motor drive module and power driving circuit are connected motor 4 respectively.
Wherein, the chip model of described pyroelectric sensor is KDS209, and described setting element adopts Hall element, and described micro controller module adopts STC series monolithic.
As shown in Figure 3, movement human detection signal treatment circuit, the output of pyroelectric sensor is put through amplifier, then after comparer, exports low and high level.This output signal is used for judging whether to there is movement human.
As shown in Figure 4, static human body detection signal treatment circuit, the output of pyroelectric sensor is after amplifier amplifies, then through AD conversion, transfer data to single-chip microcomputer, single-chip microcomputer, by the height to peak-to-peak value in the time of Static Detection, judges whether current environment has people.
As shown in Figure 5, setting element and motor and micro controller module connection layout, the utility model adopts setting element and magnet to coordinate, and realizes the location in hole.When motor rotates, micro controller module is by the position in the electrical level judging hole of detection and location element.Perform detection of dynamic, the connection block diagram of motor and hole positioning device, when performing detection static human body pattern, during for being converted to detection of dynamic after making it, on baffle plate, hole site can be stopped at directly over sensor, the locating device that the utility model adopts is setting element, and single-chip microcomputer, by the output of detection and location element, judges that the position in hole and motor rotating cycle are to control the start and stop of motor.
As shown in Figure 6, the control conducting of power driving circuit and the signal of open circuit are one of standard selecting static detection and detection of dynamic as single-chip microcomputer, and the utility model passes through adhesive and the release of pilot relay, and whether the conducting of control power driving circuit.
Below a kind ofly detect the infrared detection device of Stillness and motion human body and the detailed work steps of method:
A) power driving circuit is initially open circuit, (if conducting state, then illustrative system has started normal work, performs step b)).
B) sensor detection of dynamic is performed.As shown in Figure 3, the signal detected through amplifying, is then exported low and high level signal by comparer by sensor, and single-chip microcomputer continues scanning sensor module low and high level and exports.If people detected, make power driving circuit conducting, sensor has proceeded detection of dynamic; If sensor assembly exports as low level, so perform step c).
If c) find that power driving circuit is open circuit, so return step b).If discovery power driving circuit is conducting state, may there is static human body in explanation.Perform step d).
D) single-chip microcomputer performs in timed sequence timing, still continues the output of detecting sensor module.If in timing, there is high level, so emptied timer value, returned step b); Dynamic human body do not detected, so perform step e).
E) Single-chip Controlling motor rotates, and does not go detecting sensor module switch amount to export, and contrasts the peak-to-peak value of pyroelectric sensor output voltage and threshold values.If this difference is lower than threshold values, perform step f), if perform step g) higher than threshold values
F) according to the motor rotating cycle that setting element low and high level change frequency draws, judge that whether current rotating cycle is higher than the setting number of turns, if after motor rotating cycle arrives the setting number of turns, maximum peak peak value is all lower than threshold values, illustrate that current environment is really unmanned, actuating motor corrects program, makes baffle holes position be stopped at directly over sensor assembly, control power driving circuit disconnects, and returns step b).If motor rotating cycle does not set the number of turns, then return step e).
If g) peak-to-peak value is higher than threshold values, have static human body under current environment is described, so keep the conducting of power driving circuit, actuating motor corrects program, makes baffle holes position be stopped at directly over sensor assembly, returns step b).
It should be noted that, although specifically show in conjunction with preferred embodiment and describe the utility model, the above implementation content, it is the one in conjunction with concrete preferred implementation, be further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these and illustrates, but require to meet the widest scope consistent with thinking disclosed herein and principle, as the detection mode for hole site, each parts fixed form of inner structure etc.For the utility model person of an ordinary skill in the technical field, under the prerequisite not departing from the utility model design and algorithm, some simple modifications or replacement can also be made.In the concept of the present utility model that attached claims limit, all should be considered as belonging to protection domain of the present utility model.
Claims (5)
1. one kind can be detected the infrared detection device of Stillness and motion human body, it is characterized in that: comprise cylindrical case (1), fixed head (5), baffle plate (6), motor (4), controller (7), pyroelectric sensor (2), setting element (8), magnet (9) and circular hole (3), described cylindrical case one end is closed, it is inner and perpendicular to cylindrical case (1) inwall that described fixed head (5) is arranged at cylindrical case (1), described baffle plate (6) is parallel with fixed head (5) and be connected with the rotation axis of motor (4) respectively, described pyroelectric sensor (2) and setting element (8) are arranged on fixed head (5) and position and are centrosymmetric relative to the center of circle of fixed head (5), described motor (4) is arranged on the Central Symmetry point of fixed head (5), described magnet (9) and circular hole (3) are arranged on baffle plate (6) and position and are centrosymmetric relative to the center of circle of baffle plate (6), described setting element (8) is corresponding up and down with magnet (9) position, described pyroelectric sensor (2) is corresponding up and down with circular hole (3) position, pyroelectric sensor treatment circuit, setting element testing circuit, motor drive module and power driving circuit that described controller (7) comprises micro controller module and is connected with micro controller module, described pyroelectric sensor treatment circuit connects pyroelectric sensor (2), described setting element testing circuit connects setting element (8), and described motor drive module and power driving circuit are connected motor (4) respectively.
2. a kind of infrared detection device detecting Stillness and motion human body according to claim 1, is characterized in that: the chip model of described pyroelectric sensor is KDS209.
3. a kind of infrared detection device detecting Stillness and motion human body according to claim 1, is characterized in that: described setting element adopts Hall element.
4. a kind of infrared detection device detecting Stillness and motion human body according to claim 1, is characterized in that: described micro controller module adopts STC series monolithic.
5. a kind of infrared detection device detecting Stillness and motion human body according to claim 3, is characterized in that: the chip model of described Hall element is A3144.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326173.2U CN205049760U (en) | 2015-05-19 | 2015-05-19 | Infrared detecting device that detectable is static and motion is human |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326173.2U CN205049760U (en) | 2015-05-19 | 2015-05-19 | Infrared detecting device that detectable is static and motion is human |
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| CN205049760U true CN205049760U (en) | 2016-02-24 |
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| CN201520326173.2U Expired - Fee Related CN205049760U (en) | 2015-05-19 | 2015-05-19 | Infrared detecting device that detectable is static and motion is human |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US10891838B2 (en) | 2017-05-10 | 2021-01-12 | Carrier Corporation | Detecting device and control system with such detecting device |
-
2015
- 2015-05-19 CN CN201520326173.2U patent/CN205049760U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US10891838B2 (en) | 2017-05-10 | 2021-01-12 | Carrier Corporation | Detecting device and control system with such detecting device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20180519 |
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| CF01 | Termination of patent right due to non-payment of annual fee |