CN2214797Y - Human action capacity senser - Google Patents
Human action capacity senser Download PDFInfo
- Publication number
- CN2214797Y CN2214797Y CN 94216958 CN94216958U CN2214797Y CN 2214797 Y CN2214797 Y CN 2214797Y CN 94216958 CN94216958 CN 94216958 CN 94216958 U CN94216958 U CN 94216958U CN 2214797 Y CN2214797 Y CN 2214797Y
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- pyroelectric
- carried out
- operational amplifier
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- human action
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- 238000007493 shaping process Methods 0.000 claims abstract description 9
- 239000000523 sample Substances 0.000 claims abstract description 6
- 230000037081 physical activity Effects 0.000 claims description 15
- 230000006870 function Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000005616 pyroelectricity Effects 0.000 abstract 2
- 238000011282 treatment Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000009699 differential effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model relates to a human action capacity sensor which belongs to the detecting technical field of household appliances. The utility model carries out technological treatments, such as waveform shaping, definite time counting, latching, etc., for signals detected by a pyroelectricity infrared probe and reaches the goal of carrying out quantitative detection of human action capacity within the detection ranges of the human action capacity sensor. The utility model mainly comprises the pyroelectricity infrared probe, a frequency domain limited high-gain signal amplifier, a clock generator, a pulse counter and an output flip-latch or display interface.
Description
This utility model relates to a kind of physical activity quantity sensor of human body activity size.The detection technique field that belongs to household electrical appliance.
Utilize the human body detector of pyroelectric infrared sensor human body infrared radiation to use more generally, main core component--the light filter of Infrared wavelength 7～15 μ m bandpass characteristics is arranged in the pyroelectric infrared sensor, make detector only to variations in temperature at human body temperature range-sensitive (about 30 ℃ of the body temperature of human body, be 300K, then the wavelength of the far-infrared ray power of human body radiation is that 9～10 μ m have a peak), the capacity of resisting disturbance to the steam that waves and light, daylight etc. is stronger like this.Two pick offs that are connected into the detecting unit of differential form are equipped with in use, can be to dramatic temperature variation on every side, external vibration and external stray light insensitive for noise.Because signal enters two detecting elements simultaneously, both differential effects are cancelled out each other above-mentioned unwanted signal.Like this, have only the infrared ray that moves middle human body radiation to enter two detecting units, can not cancel each other, thereby can correctly detect the active situation of human body with different sequential.
Traditional human body detector block diagram is as shown in Figure 1:
The purpose of this utility model is a kind of physical activity quantity sensor of design, makes it can detect the violent degree of physical activity.
Content of the present utility model is: the physical activity quantity sensor comprises:
1, condenser system is a Fresnel Lenses.
2, pyroelectric sensor is a pair of pyroelectric unit probe.
3, the frequency domain limiting amplifier that amplifies of the signal of telecommunication that is used for pyroelectric sensor is produced is made up of operational amplifier L3A, L3B.
4, be used for above-said current signal is carried out the waveform shaping circuit of shaping, form by variable resistance R11 and operational amplifier L3B.
5, be used for above-mentioned output pulse is carried out the impulse scaler of timer counter, wherein L1 is responsible for exporting commutator pulse, R1, C4 determine the length of interval, digit chip L4A, L4B finish inverter functionality, digit chip L4C, L4D finish anti-phase delay function, and digit chip L5A, L5B are decade computer.
6, be used for the numerical value of above-mentioned enumerator is carried out latched data latch and data socket, form by latch L2 and socket 8PIN.
Circuit block diagram of the present utility model as shown in Figure 2.
In principle, utilize the infrared ray that infrared acquisition gives off when human body moves with the speed of about 0.2～2 meter per second after, Fresnel Lenses effect through condenser system, two pyroelectric units probe just can produce faint frequency and be about 0.1Hz～10Hz signal of telecommunication, through the special frequency domain restriction (signal of telecommunication that just can obtain to have certain amplitude behind the high gain signal amplifier of 0.1Hz～10Hz).This moment is in this utility model, at first adopt the monostable trigger that can not heavily trigger that waveform is carried out shaping, to obtain output pulse with respect to people's active situation, and then utilize clock generator and impulse scaler to carry out regularly (is 1 minute, 4 minutes etc. as timing) and count, latch, thereby obtain the concrete quantitative value of human activity amount.
Description of drawings:
Fig. 1 prior art circuit block diagram
Fig. 2 this utility model circuit block diagram
The circuit diagram that Fig. 3 physical activity quantity sensor is realized with the digital circuit device
The circuit diagram that Fig. 4 physical activity quantity sensor is realized with microprocessor
Below in conjunction with accompanying drawing, introduce content of the present utility model in detail:
Physical activity quantity sensor high-gain amplification and rectification circuit shown in Figure 3 is mainly finished human activity signal's detection, high-gain and is amplified and pulse waveform shaper, to guarantee the accuracy of timer counter.Wherein operational amplifier L3A, L3B finish high-gain amplification and waveform shaping function, and its sensitivity is regulated by adjustable resistance R11.The output of Fig. 3 circuit (physical) is a string rectangular pulse.
The commutator pulse counting latch cicuit of physical activity quantity sensor constitutes with a plurality of digital circuit chips, and wherein L1 is responsible for exporting commutator pulse, and the length of its fixed time interval is determined by R1, C4.Digit chip L4A, L4B finish inverter functionality, and digit chip L4C, L4D finish anti-phase delay function, and digit chip L5 is a decade computer, and digit chip L2 latchs the numerical value of enumerator.8PIN is the outfan socket of latch.
The commutator pulse counting of physical activity quantity sensor shown in Figure 4 latchs display circuit and finishes step-by-step counting by microprocessor U201 and external data latches U202, Add-In memory element U203 thereof.The specific implementation software control of this scheme, microprocessor can also be used to finishing other logical process and control function.
As long as suitably adjust variable-resistance value, just can obtain the size of human activity amount.Ordinary circumstance is, nobody the time be zero, be below 100 when light activity or sleep, general walking is between the 100-200, between the moving 200-300 of taskwork, taskwork is moving to be more than 300.
The physical activity quantity sensor of this utility model design can detect the violent degree of physical activity automatically, for the intellectuality of household electrical appliance provides indispensable physical activity situation, is the first-selected pick off that household electrical appliance update.
Claims (2)
1, a kind of physical activity quantity sensor comprises:
(1) condenser system is a Fresnel Lenses;
(2) pyroelectric sensor is a pair of pyroelectric unit probe;
It is characterized in that also comprising:
(3) the frequency domain limiting amplifier that amplifies of the signal of telecommunication that is used for pyroelectric sensor is produced is made up of operational amplifier L3A, L3B;
(4) be used for above-said current signal is carried out the waveform shaping circuit of shaping, form by variable resistance R11 and operational amplifier L3B;
(5) be used for above-mentioned output pulse is carried out the impulse scaler of timer counter, wherein L1 is responsible for exporting commutator pulse, R1, C4 determine the length of interval, digit chip L4A, L4B finish inverter functionality, digit chip L4C, L4D finish anti-phase delay function, and digit chip L5A, L5B are decade computer;
(6) be used for the numerical value of above-mentioned enumerator is carried out latched data latch and data socket, form by latch L2 and socket 8PIN.
2, a kind of physical activity quantity sensor comprises:
(1) condenser system is a Fresnel Lenses;
(2) pyroelectric sensor is a pair of pyroelectric unit probe;
Its feature also is to comprise:
(3) the frequency domain limiting amplifier that amplifies of the signal of telecommunication that is used for pyroelectric sensor is produced is made up of operational amplifier L2A, L2B;
(4) be used for above-said current signal is carried out the waveform shaping circuit of shaping, constitute by variable resistance R10 and operational amplifier L2B;
(5) the commutator pulse counting that is used for logical process and control latchs and display interface circuit, is made up of microprocessor U201, external data latches U202, Add-In memory element U203.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216958 CN2214797Y (en) | 1994-07-16 | 1994-07-16 | Human action capacity senser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216958 CN2214797Y (en) | 1994-07-16 | 1994-07-16 | Human action capacity senser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2214797Y true CN2214797Y (en) | 1995-12-13 |
Family
ID=33832525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94216958 Expired - Fee Related CN2214797Y (en) | 1994-07-16 | 1994-07-16 | Human action capacity senser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2214797Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101732052B (en) * | 2009-11-16 | 2011-08-17 | 清华大学 | Infrared measuring device and method for human motion modality |
| CN102414519A (en) * | 2009-04-27 | 2012-04-11 | 日立空调·家用电器株式会社 | Air-conditioner and human body detector thereof |
| CN103713487A (en) * | 2012-09-28 | 2014-04-09 | 富士施乐株式会社 | Detecting device, processing device, image forming apparatus and detecting method |
| CN109186044A (en) * | 2018-07-11 | 2019-01-11 | 青岛海信日立空调系统有限公司 | A kind of human perception method, apparatus and air conditioner |
-
1994
- 1994-07-16 CN CN 94216958 patent/CN2214797Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102414519A (en) * | 2009-04-27 | 2012-04-11 | 日立空调·家用电器株式会社 | Air-conditioner and human body detector thereof |
| CN102414519B (en) * | 2009-04-27 | 2014-11-05 | 日立空调·家用电器株式会社 | Air-conditioner and human body detector thereof |
| CN101732052B (en) * | 2009-11-16 | 2011-08-17 | 清华大学 | Infrared measuring device and method for human motion modality |
| CN103713487A (en) * | 2012-09-28 | 2014-04-09 | 富士施乐株式会社 | Detecting device, processing device, image forming apparatus and detecting method |
| CN103713487B (en) * | 2012-09-28 | 2017-06-16 | 富士施乐株式会社 | Detection means, processing unit, image processing system and detection method |
| CN109186044A (en) * | 2018-07-11 | 2019-01-11 | 青岛海信日立空调系统有限公司 | A kind of human perception method, apparatus and air conditioner |
| CN109186044B (en) * | 2018-07-11 | 2021-03-19 | 青岛海信日立空调系统有限公司 | Human body sensing method and device and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |