CN103207416A - Human body infrared detector with self-regulating function and working method thereof - Google Patents
Human body infrared detector with self-regulating function and working method thereof Download PDFInfo
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- CN103207416A CN103207416A CN2011103401556A CN201110340155A CN103207416A CN 103207416 A CN103207416 A CN 103207416A CN 2011103401556 A CN2011103401556 A CN 2011103401556A CN 201110340155 A CN201110340155 A CN 201110340155A CN 103207416 A CN103207416 A CN 103207416A
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Abstract
The invention relates to a human body detector, in particular to a human body infrared detector with a self-regulating function. The human body infrared detector comprises a master control unit, a passive infrared sensor circuit unit electrically connected with the master control unit through a signal amplifying circuit unit, a multicolor light-emitting circuit unit, a signal output circuit unit and a power source circuit unit for supplying power, wherein the multicolor light-emitting circuit unit and the signal output circuit unit are electrically connected with the master control unit. The multicolor light-emitting circuit unit comprises a plurality of different-color light-emitting elements which are respectively and electrically connected onto the master control unit, and the passive infrared sensor circuit unit comprises a passive infrared sensor which is arranged at the position where direct light or diffuse reflection light of all light-emitting elements can be received. The invention further discloses a working method of the human body infrared detector with the self-regulation function. The working method includes steps of: (1) human body detection; and (2) automatic regulation. The human body infrared detector is good in stability and capable of resisting changing of ambient light, and a working state lamp is attractive.
Description
Technical field
The present invention relates to peoplesniffer, especially relate to a kind of human body infrared detector and method of work thereof of tool self-regulating function.
Background technology
The electron detection product that occurs on the market at present, generally by Passive Infrared Sensor, sensor signal amplifying circuit, signal processing circuit, power circuit, signal output apparatus is formed, and other has relay indicating light for selecting for use, and the advantage of this series products is comparatively ripe, extensively accepted and use by the user, but in use also have relatively more outstanding deficiency:
1, the parameter index of the Passive Infrared Sensor used of detector has discreteness and performance drift can take place in time, and the consistance stability of product detection performance is bad;
2, detector is along with the different of environment for use and day and night variation, and the illuminance of the environment of work changes often, and its intelligent degree that conforms automatically is low, thereby causes anti-white light ability and sensitivity and reliability deficiency, fails to report easily or reports by mistake;
3, the light dullness of work indication is attractive in appearance inadequately.
Summary of the invention
For overcoming the shortcoming that Conventional detectors performance drift takes place in time, is subject to the surround lighting variable effect, the object of the invention is to provide the human body infrared detector of the tool self-regulating function that a kind of good stability, anti-surround lighting change.
The objective of the invention is to realize by following technical measures, a kind of human body infrared detector of tool self-regulating function, comprise a main control unit, be electrically connected a Passive Infrared Sensor circuit unit of main control unit by a signal amplification circuit unit, be electrically connected a multicolor luminous circuit unit and a signal output apparatus unit of main control unit, and the power circuit unit of power supply; Described multicolor luminous circuit unit comprises a plurality of light-emitting components that are electrically connected the different colours on the main control unit respectively, described Passive Infrared Sensor circuit unit comprises a Passive Infrared Sensor, and described Passive Infrared Sensor is arranged on the direct light that can receive whole light-emitting components or the position that diffuses.
As a kind of optimal way, described main control unit comprises that one has the microprocessor chip of digital-to-analog conversion function.
As a kind of optimal way, the light-emitting component of described different colours is a red light emitting diodes, a green LED and a blue LED.
As a kind of optimal way, described main control unit also comprises a thermistor.
Concrete, described main control unit is made up of the microprocessor chip U3 with digital-to-analog conversion function, resistance R 11, thermistor RX1, resistance R 15, wire jumper JP1, resistance R 20, capacitor C 13, capacitor C 14, breaking-proof switch S1 and resistance R 21; The Passive Infrared Sensor circuit unit is made up of resistance R 2, capacitor C 9, Passive Infrared Sensor PIR1, capacitor C 10 and resistance R 3; Described sensor signal amplifying circuit comprises the double operational chip of amplifier U2A and amplifier U2B by inside, and peripheral cell resistance R 4, resistance R 5, resistance R 6, capacitor C 5, capacitor C 11, capacitor C 4, resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 1, capacitor C 12, capacitor C 6, capacitor C 7 and capacitor C 8 are formed; Described multicolor luminous electric routing switch JP2, red light emitting diodes D1, divider resistance R16, green LED D2, divider resistance R17, blue LED D3 and divider resistance R18 form; Described signal output apparatus is made up of resistance R 19, output interface X1-3; Described power circuit unit is made up of power interface X1-1, power interface X1-2, capacitor C 1, capacitor C 2, capacitor C 3 and voltage stabilizing chip U1.
More specifically, described Passive Infrared Sensor PIR1 adopts the three end Passive Infrared Sensors that are numbered RE200B of Ni Saila.
The invention also discloses the method for work of the human body infrared detector of tool self-regulating function, may further comprise the steps:
(1), human body detection: external power is connected in the fixed installation back, the power circuit unit begins power supply, enter into the search coverage of Passive Infrared Sensor as human body, Passive Infrared Sensor detects the infrared ray of mobile human body radiation, export electric signal and be transferred to the signal amplification circuit unit signal is amplified, signal after the amplification outputs to main control unit, main control unit carries out analog to digital conversion to the electric signal that receives, by comparing with the thresholding that presets or adjust and pulse sequence, send action command, by the output of signal output apparatus unit, be used for pilot relay or wireless radiating circuit;
(2), automatically regulate: behind the repeatedly human body detection of finishing once or being scheduled to, the pulse current that main control unit constantly changes by dutycycle is respectively controlled the luminous and brightness of the light-emitting component of different colours, the light that the light-emitting component of different colours sends is mixed together and has become versicolor light, these light direct beams or diffuse reflection are on the Passive Infrared Sensor, the electric signal that Passive Infrared Sensor is sensed, being transferred to the signal amplification circuit unit amplifies signal, output to main control unit again, because the spectrum that the light-emitting component of different colours is initiatively launched and intensity are that the program in the main control unit is default, calculate discreteness and error and the probability of under the luminous environment of different illumination, slipping up that Passive Infrared Sensor and signal amplification circuit unit exist by main control unit, obtain the acquisition mode of Passive Infrared Sensor in real time, automatically adjust immediately to survey and trigger thresholding and sequential, automatically compensate automatic calibration, make system be in the optimal detection state; Enter into the search coverage of Passive Infrared Sensor, execution in step (1) again as human body.
As a kind of optimal way, thermistor detects to main control unit environment temperature temperature parameter is provided when compensating automatic calibration in described step (2) self check automatically.
The present invention can be installed on the wall or inhale the top and be installed on the ceiling; Adopt multicolor luminous circuit at each product action back diffuse reflection Passive Infrared Sensor in product shell, the light-emitting component of controlling a plurality of different colours respectively by main control unit during diffuse reflection in product shell changes brightness continuously, blending multiple different colours and intensity also is the continually varying colored light, multiple spectrum is in product shell under the diffuse reflection, Passive Infrared Sensor can produce different signals and give the sensor signal amplifying circuit, send main control unit again to analog quantity is converted to data, because spectrum and intensity that multicolor luminous circuit unit is initiatively launched are preset known, extrapolate discreteness that Passive Infrared Sensor and sensor signal amplifying circuit exist and error thus and possible error probability under the luminous environment of different illumination, automatically compensate automatic calibration immediately and adjust detection triggering thresholding and sequential automatically, the quality of detector is increased dramatically, the light-emitting component of different colours is taken on the effect of working station indicator simultaneously in product, the user also can see beautiful glory when detector moves at every turn, and can come into plain view and distinguish the detector that has adopted new technology.
Description of drawings
Fig. 1 is circuit block diagram of the present invention;
Fig. 2 is circuit theory diagrams of the invention process.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the present invention is described in further detail.
As Fig. 1, Fig. 2, a kind of human body infrared detector of tool self-regulating function, comprise a main control unit 4, be electrically connected a Passive Infrared Sensor circuit unit 1 of main control unit 4 by a signal amplification circuit unit 2, be electrically connected a multicolor luminous circuit unit 3 and a signal output apparatus unit 5 of main control unit 4, and the power circuit unit 6 of power supply.
Described main control unit 4 is made up of the microprocessor chip U3 with digital-to-analog conversion function, resistance R 11, thermistor RX1, resistance R 15, wire jumper JP1, resistance R 20, capacitor C 13, capacitor C 14, breaking-proof switch S1 and resistance R 21; Passive Infrared Sensor circuit unit 1 is made up of resistance R 2, capacitor C 9, Passive Infrared Sensor PIR1, capacitor C 10 and resistance R 3, general equal can the employing of Passive Infrared Sensor in the multiple model of selling on the market, in the present embodiment, PIR1 adopts the three end Passive Infrared Sensors that are numbered RE200B of Ni Saila; Described sensor signal amplifying circuit 2 is comprised the double operational chip of amplifier U2A and amplifier U2B by inside, peripheral cell resistance R 4, resistance R 5, resistance R 6, capacitor C 5, capacitor C 11, capacitor C 4, resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 1, capacitor C 12, capacitor C 6, capacitor C 7 and capacitor C 8 are formed, general equal can the employing of general double operational chip in the multiple model of selling on the market, in the present embodiment, the double operational chip that inside comprises amplifier U2A and amplifier U2B is the SN308N that power security protection company is feared in Shenzhen; Described multicolor luminous circuit 3 is made up of switch JP2, red light emitting diodes D1, divider resistance R16, green LED D2, divider resistance R17, blue LED D3 and divider resistance R18; Described signal output apparatus 5 is made up of resistance R 19, output interface X1-3; Described power circuit unit 6 is made up of power interface X1-1, power interface X1-2, capacitor C 1, capacitor C 2, capacitor C 3 and voltage stabilizing chip U1, voltage stabilizing chip U1 is exactly common commercially available circuit of three-terminal voltage-stabilizing integrated, power interface X1-1 connects positive source, X1-2 connects power cathode, can also can connect battery by external cable power; Wherein red light emitting diodes D1, green LED D2, blue LED D3 and Passive Infrared Sensor PIR1 are installed in the same space, and the light that sends of red light emitting diodes D1, green LED D2 and blue LED D3 can be received by Passive Infrared Sensor PIR1 after by the diffuse reflection of housing.
The method of work of the human body infrared detector of above-mentioned tool self-regulating function may further comprise the steps:
(1), self check: the present invention can be installed on the wall, connects the product power supply, and power circuit unit 6 begins power supply, and the circuit of entire product carries out self check, gets ready for product enters acquisition mode;
(2), human body detection for the first time: enter into search coverage of the present invention as the people, PIR1 detects the infrared ray of mobile human body radiation, PIR1 the 2nd pin output electric signal, be transferred to the sensor signal amplifying circuit by resistance R 5, double operational chip U2A and U2B, resistance R 4, resistance R 5, resistance R 6, capacitor C 5, capacitor C 11, capacitor C 4, resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 1, capacitor C 12, capacitor C 6, capacitor C 7 and capacitor C 8 have been formed typical low frequency signal amplifying circuit, signal is amplified, outputed to the 2nd pin of microprocessor chip U3 by first pin of the U2A unit in the double operational chip, microprocessor chip U3 carries out analog to digital conversion to the electric signal that receives, by predetermined thresholding and pulse sequence are compared, send action command, the 9th pin output action signal by U3, by output interface X1-3 output, be used for pilot relay or wireless radiating circuit by resistance R 19;
(3), automatically regulate: after finishing human body detection, microprocessor chip U3 is by resistance R 16, R17, R18 controls the red light emitting diodes D1 among the multicolor luminous element DX1 respectively, green LED D2, blue LED D3, switch JP2 is communicated with, these three light emitting diodes obtain the pulse current that dutycycle constantly changes separately, red light emitting diodes D1, green LED D2, the round-the-clock variation respectively of the luminosity of blue LED D3, because they are encapsulated in together, the light that sends is mixed together and has become versicolor light, these light in product shell diffuse reflection on the Passive Infrared Sensor PIR1, the electric signal that the output of PIR1 the 2nd pin is sensed, be transferred to the sensor signal amplifying circuit by resistance R 5, double operational chip U2A and U2B, resistance R 4, resistance R 5, resistance R 6, capacitor C 5, capacitor C 11, capacitor C 4, resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 1, capacitor C 12, capacitor C 6, capacitor C 7 and capacitor C 8 have been formed typical low frequency signal amplifying circuit, signal is amplified, outputed to the 2nd pin of microprocessor chip U3 by first pin of the U2A unit in the double operational chip, because the spectrum that DX1 initiatively launches and intensity are that the program among the microprocessor chip U3 is default, calculate discreteness that Passive Infrared Sensor and sensor signal amplifying circuit exist and error thus and possible error probability under the luminous environment of different illumination, obtain the acquisition mode of Passive Infrared Sensor in real time, automatically adjust immediately to survey and trigger thresholding and sequential, automatically compensate automatic calibration, resistance R 11 is formed ambient temperature detection circuit with thermistor RX1 provides temperature parameter for microprocessor chip U3, to guarantee to survey the best setting of thresholding, for entering the optimal detection state, product gets ready;
(4), later time human body detection: when someone again enters into search coverage of the present invention, PIR1 detects the infrared ray of mobile human body radiation, PIR1 the 2nd pin output electric signal, be transferred to the sensor signal amplifying circuit by resistance R 5, double operational chip U2A and U2B, resistance R 4, resistance R 5, resistance R 6, capacitor C 5, capacitor C 11, capacitor C 4, resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 1, capacitor C 12, capacitor C 6, capacitor C 7 and capacitor C 8 have been formed typical low frequency signal amplifying circuit, signal is amplified, outputed to the 2nd pin of microprocessor chip U3 by first pin of the U2A unit in the double operational chip, microprocessor chip U3 carries out analog to digital conversion to the electric signal that receives, compare by thresholding and pulse sequence to up-to-date setting, send action command, the 9th pin output action signal by U3, by output interface X1-3 output, be used for pilot relay or wireless radiating circuit by resistance R 19; And enter (3) automatically regulating step again.
When the present invention detected the human body invasion, the light of DX1 namely transmitted by form of the present invention, and the user can see;
Wire jumper JP1 is used for arranging the step-by-step counting of U3, and whether breaking-proof switch S1 is opened for detection of product.
More than be that human body infrared detector and the method for work of tool self-regulating function of the present invention are set forth; be used for helping to understand the present invention; but embodiments of the present invention are not restricted to the described embodiments; anyly do not deviate from the change done under the principle of the invention, modification, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. the human body infrared detector of a tool self-regulating function, it is characterized in that: comprise a main control unit, be electrically connected a Passive Infrared Sensor circuit unit of main control unit by a signal amplification circuit unit, be electrically connected a multicolor luminous circuit unit and a signal output apparatus unit of main control unit, and the power circuit unit of power supply; Described multicolor luminous circuit unit comprises a plurality of light-emitting components that are connected electrically in the different colours on the main control unit respectively, described Passive Infrared Sensor circuit unit comprises a Passive Infrared Sensor, and described Passive Infrared Sensor is arranged on the direct light that can receive whole light-emitting components or the position that diffuses.
2. the human body infrared detector of tool self-regulating function according to claim 1, it is characterized in that: described main control unit comprises that one has the microprocessor chip of digital-to-analog conversion function.
3. the human body infrared detector of tool self-regulating function according to claim 1, it is characterized in that: the light-emitting component of described different colours is a red light emitting diodes, a green LED and a blue LED.
4. the human body infrared detector of tool self-regulating function according to claim 1, it is characterized in that: described main control unit also comprises a thermistor.
5. the human body infrared detector of tool self-regulating function according to claim 1, it is characterized in that: described main control unit is made up of the microprocessor chip U3 with digital-to-analog conversion function, resistance R 11, thermistor RX1, resistance R 15, wire jumper JP1, resistance R 20, capacitor C 13, capacitor C 14, breaking-proof switch S1 and resistance R 21; The Passive Infrared Sensor circuit unit is made up of resistance R 2, capacitor C 9, Passive Infrared Sensor PIR1, capacitor C 10 and resistance R 3; Described sensor signal amplifying circuit comprises the double operational chip of amplifier U2A and amplifier U2B by inside, and peripheral cell resistance R 4, resistance R 5, resistance R 6, capacitor C 5, capacitor C 11, capacitor C 4, resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 1, capacitor C 12, capacitor C 6, capacitor C 7 and capacitor C 8 are formed; Described multicolor luminous electric routing switch JP2, red light emitting diodes D1, divider resistance R16, green LED D2, divider resistance R17, blue LED D3 and divider resistance R18 form; Described signal output apparatus is made up of resistance R 19, output interface X1-3; Described power circuit unit is made up of power interface X1-1, power interface X1-2, capacitor C 1, capacitor C 2, capacitor C 3 and voltage stabilizing chip U1.
6. the human body infrared detector of tool self-regulating function according to claim 5 is characterized in that: the three end Passive Infrared Sensors that are numbered RE200B of described Passive Infrared Sensor PIR1 employing Ni Saila.
7. as the method for work of the human body infrared detector of claim 1 or 5 described tool self-regulating functions, it is characterized in that may further comprise the steps:
(1), human body detection: external power is connected in the fixed installation back, the power circuit unit begins power supply, enter into the search coverage of Passive Infrared Sensor as human body, Passive Infrared Sensor detects the infrared ray of mobile human body radiation, export electric signal and be transferred to the signal amplification circuit unit signal is amplified, signal after the amplification outputs to main control unit, main control unit carries out analog to digital conversion to the electric signal that receives, by comparing with the thresholding that presets or adjust and pulse sequence, send action command, by the output of signal output apparatus unit, be used for pilot relay or wireless radiating circuit;
(2), automatically regulate: behind the repeatedly human body detection of finishing once or being scheduled to, the pulse current that main control unit constantly changes by dutycycle is respectively controlled the luminous and brightness of the light-emitting component of different colours, the light that the light-emitting component of different colours sends is mixed together and has become versicolor light, these light direct beams or diffuse reflection are on the Passive Infrared Sensor, the electric signal that Passive Infrared Sensor is sensed, being transferred to the signal amplification circuit unit amplifies signal, output to main control unit again, because the spectrum that the light-emitting component of different colours is initiatively launched and intensity are that the program in the main control unit is default, calculate discreteness and error and the probability of under the luminous environment of different illumination, slipping up that Passive Infrared Sensor and signal amplification circuit unit exist by main control unit, obtain the acquisition mode of Passive Infrared Sensor in real time, automatically adjust immediately to survey and trigger thresholding and sequential, automatically compensate automatic calibration, make system be in the optimal detection state; Enter into the search coverage of Passive Infrared Sensor, execution in step (1) again as human body.
8. method of work according to claim 7 is characterized in that: when compensating automatic calibration during described step (2) is regulated automatically automatically, utilize thermistor that environment temperature is detected to main control unit temperature parameter is provided.
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| CN202393925U (en) * | 2011-11-01 | 2012-08-22 | 陈宏乔 | Human body infrared detector with self-regulating function |
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Application publication date: 20130717 |