CN105517228A - LED lamp intelligent control system based on infrared signal receiving circuit - Google Patents
LED lamp intelligent control system based on infrared signal receiving circuit Download PDFInfo
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- CN105517228A CN105517228A CN201510955686.4A CN201510955686A CN105517228A CN 105517228 A CN105517228 A CN 105517228A CN 201510955686 A CN201510955686 A CN 201510955686A CN 105517228 A CN105517228 A CN 105517228A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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Abstract
The invention discloses an LED lamp intelligent control system based on an infrared signal receiving circuit. The LED lamp intelligent control system is mainly composed of a central processing unit, a photosensitive sensor, a display, an infrared probe, a power source, an LED lamp, and a frequency-modulated beam receiving circuit which is connected in series between the photosensitive sensor and the central processing unit, wherein the display, the infrared probe, the power source and the LED lamp are connected with the central processing unit. The LED lamp intelligent control system is characterized in that an infrared signal receiving circuit is connected in series between the infrared probe and the central processing unit; the frequency-modulated beam receiving circuit is composed of a filtering circuit connected with the photosensitive sensor, and a differential amplifier circuit connected with the filtering circuit; and the output end of the differential amplifier circuit is connected with the central processing unit. With the LED lamp intelligent control system, the brightness of an LED desk lamp can be adjusted automatically, and can be turned off automatically when there is no one nearby. Therefore, electric energy is saved greatly, the useful life of the LED desk lamp is fully increased, and the use cost is reduced.
Description
Technical field
The present invention relates to the technical field of electronic equipment, specifically refer to a kind of LED intelligent control system based on infrared signal receiving circuit.
Background technology
The normally fixing light of the desk lamp used in existing family, by user's hand control switch, this desk lamp cannot regulate brightness, when dark, user can feel insufficient light, can feel again that when light is stronger light is excessively bright, the deficiency of light all likely damages human eye with excessively bright.
At present, some desk lamp can by the brightness of user's manual adjustments light, and user can the desk lamp light that is applicable to of the different adjustment of environmentally brightness, but the operation required is still too much, and the brightness of user's manual adjustments is also inaccurate.And user usually can forget closedown desk lamp when leaving, and wastes electric energy greatly.
Summary of the invention
The object of the invention is to overcome the brightness that LED desk lamp of the prior art can not regulate light automatically, the defect that can not automatically close, the invention provides a kind of LED intelligent control system based on infrared signal receiving circuit.
The present invention is achieved through the following technical solutions: based on the LED intelligent control system of infrared signal receiving circuit, primarily of central processing unit, light-inductive device, the display be all connected with central processing unit, infrared probe, power supply, LED, the frequency-modulated beam receiving circuit be serially connected between light-inductive device and central processing unit forms.Meanwhile, between infrared probe and central processing unit, infrared signal receiving circuit is also serially connected with.
Described infrared signal receiving circuit is by process chip U, triode VT4, triode VT5, diode D5, positive pole is connected with the N pole of diode D5 after resistance R11, the polar capacitor C7 that negative pole is connected with the emitter of triode VT4 after resistance R13, positive pole is connected with the N pole of diode D5, the polar capacitor C6 that negative pole is connected with the base stage of triode VT4 after adjustable resistance R12, one end is connected with the SC pin of process chip U, the resistance R14 that the other end is connected with the collector electrode of triode VT4, negative pole is connected with the PWM pin of process chip U, the polar capacitor C8 that positive pole is connected with the adjustable end of adjustable resistance R12, P pole is connected with the P pole of diode D5 after resistance R15, the diode D6 that N pole is connected with the SW pin of process chip U, negative pole is connected with the SHF pin of process chip U, the polar capacitor C9 that positive pole is connected with the FW pin of process chip U, P pole is connected with the SEN pin of process chip U after resistance R16, the diode D7 that N pole is connected with the emitter of triode VT5, and positive pole is connected with the OUT pin of process chip U, the polar capacitor C10 that negative pole is connected with the base stage of triode VT5 after resistance R17 forms, the VIN pin of described process chip U is connected with the negative pole of polar capacitor C8, its GND pin ground connection, the grounded collector of described triode VT5, the positive pole of described polar capacitor C7 as infrared signal receiving circuit input and be connected with infrared probe, the negative pole of described polar capacitor C10 is as infrared signal receiving circuit output and be connected with central processing unit.
Described frequency-modulated beam receiving circuit is then by the filter circuit be connected with light-inductive device, and the differential amplifier circuit be connected with filter circuit forms; The output of described differential amplifier circuit is connected with central processing unit.
Described filter circuit is by triode VT1, diode D1, polar capacitor C3, negative pole is connected with the base stage of triode VT1 after resistance R2, the polar capacitor C1 that positive pole is connected with the P pole of diode D1 after resistance R1, positive pole is connected with the base stage of triode VT1, the polar capacitor C2 that negative pole is connected with the emitter of triode VT1 after inductance L, P pole is connected with the negative pole of polar capacitor C1 after resistance R5, the diode D2 that N pole is connected with the base stage of triode VT1, one end is connected with the N pole of diode D1, the resistance R3 that the other end is connected with the negative pole of polar capacitor C2, and one end is connected with the negative pole of polar capacitor C2, the other end and the positive pole of polar capacitor C3 jointly form the output of filter circuit and the resistance R4 be connected with differential amplifier circuit forms, the negative pole of described polar capacitor C1 as filter circuit input and be connected with light-inductive device, grounded collector, its emitter of described triode VT1 are connected with the negative pole of polar capacitor C3.
Described differential amplifier circuit is by triode VT2, triode VT3, amplifier P1, P pole is connected with the base stage of triode VT2 after resistance R7, the diode D3 that N pole is connected with the negative pole of polar capacitor C2 after resistance R4, one end is connected with the collector electrode of triode VT3, the resistance R6 that the other end is connected with the emitter of triode VT2, P pole is connected with the P pole of diode D3 after adjustable resistance R8, the diode D4 that N pole is connected with the negative pole of amplifier P1, positive pole is connected with the P pole of diode D4, the polar capacitor C5 that negative pole is connected with the output of amplifier P1 after resistance R10, positive pole is connected with the positive pole of amplifier P1, the polar capacitor C4 of ground connection while of after negative pole is connected with the collector electrode of triode VT2, and one end is connected with the positive pole of amplifier P1, the resistance R9 that the other end is connected with the output of amplifier P1 forms, the base stage of described triode VT3 is connected with the positive pole of polar capacitor C3, its emitter is connected with the N pole of diode D3, the output of described amplifier P1 is as the output of differential amplifier circuit.
For guaranteeing practical effect of the present invention, described light-inductive device preferentially adopts RA-1805NO type light-inductive device to realize; Infrared probe then adopts KR-P819 type infrared probe to realize; Process chip U then preferentially adopts TDA3047 integrated chip to realize simultaneously.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) infrared signal receiving circuit of the present invention can be eliminated the mistake frame signal that infrared probe exports in the signal detected, also can suppress by rugged varying signal the pulse in signal, because this ensure that the signal that infrared probe detects can accurately be transferred to central processing unit.
(2) frequency-modulated beam receiving circuit of the present invention can carry out anti-interference process to the luminance signal that light-inductive device exports, high-frequency interferencing signal in the luminance signal that can also prevent light-inductive device from exporting scurries into central processing unit, thus ensure that LED intelligent control system of the present invention carries out accuracy adjustment to the brightness of LED desk lamp.
(3) present invention employs light-inductive device, the stable performance of this light-inductive device, the scope of Information Monitoring is wide, can accurately gather the brightness in acquisition range.
(4) infrared probe that the present invention adopts can carry out the detection of wide-angle 180 °, and it has the advantages such as accuracy is high, sensitivity is strong, therefore, ensure that LED intelligent control system of the present invention can accurately be closed automatically to LED desk lamp.
(5) LED intelligent control system of the present invention, make LED desk lamp achieve automation brightness regulation, and can automatically close in unmanned, save electric energy greatly, and the useful life of LED desk lamp can be substantially increased, reduce use cost.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present invention.
Fig. 2 is the electrical block diagram of frequency-modulated beam receiving circuit of the present invention.
Fig. 3 is the electrical block diagram of infrared signal receiving circuit of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, the present invention is primarily of central processing unit, light-inductive device, the display be all connected with central processing unit, infrared probe, power supply, LED, be serially connected in the infrared signal receiving circuit between infrared probe and central processing unit, and the frequency-modulated beam receiving circuit be serially connected between light-inductive device and central processing unit forms.Wherein, as shown in Figure 2, it is made up of filter circuit and differential amplifier circuit this frequency-modulated beam receiving circuit.
For guaranteeing reliability service of the present invention, described central processing unit preferentially adopts LTC3455 integrated chip, and the SEN pin of this LTC3455 integrated chip is connected with display, and BST pin is connected with LED, and VC pin is connected with power supply.Described power supply is 12V direct voltage, and this 12V direct voltage is that central processing unit is powered.
As shown in Figure 2, described filter circuit by triode VT1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, polar capacitor C1, polar capacitor C2, polar capacitor C3, diode D1, and diode D2 forms.
During connection, the negative pole of polar capacitor C1 is connected with the base stage of triode VT1 after resistance R2, positive pole is connected with the P pole of diode D1 after resistance R1.The positive pole of polar capacitor C2 is connected with the base stage of triode VT1, negative pole is connected with the emitter of triode VT1 after inductance L.The P pole of diode D2 is connected with the negative pole of polar capacitor C1 after resistance R5, N pole is connected with the base stage of triode VT1.One end of resistance R3 is connected with the N pole of diode D1, the other end is connected with the negative pole of polar capacitor C2.One end of resistance R4 is connected with the negative pole of polar capacitor C2, the other end jointly forms the output of filter circuit with the positive pole of polar capacitor C3 and is connected with differential amplifier circuit.The negative pole of described polar capacitor C1 as filter circuit input and be connected with light-inductive device; Grounded collector, its emitter of described triode VT1 are connected with the negative pole of polar capacitor C3.
Further, described differential amplifier circuit by triode VT2, triode VT3, amplifier P1, resistance R6, resistance R7, adjustable resistance R8, resistance R9, resistance R10, polar capacitor C4, polar capacitor C5, diode D3, and diode D4 forms.
During connection, the P pole of diode D3 is connected with the base stage of triode VT2 after resistance R7, N pole is connected with the negative pole of polar capacitor C2 after resistance R4.One end of resistance R6 is connected with the collector electrode of triode VT3, the other end is connected with the emitter of triode VT2.The P pole of diode D4 is connected with the P pole of diode D3 after adjustable resistance R8, N pole is connected with the negative pole of amplifier P1.
The positive pole of described polar capacitor C5 is connected with the P pole of diode D4, negative pole is connected with the output of amplifier P1 after resistance R10.The ground connection while of after the positive pole of polar capacitor C4 is connected with the positive pole of amplifier P1, negative pole is connected with the collector electrode of triode VT2.One end of resistance R9 is connected with the positive pole of amplifier P1, the other end is connected with the output of amplifier P1.The base stage of described triode VT3 is connected with the positive pole of polar capacitor C3, its emitter is connected with the N pole of diode D3; The output of described amplifier P1 as differential amplifier circuit output and be connected with the IN pin of LTC3455 integrated chip.
Operationally, the filter circuit of luminance signal in frequency-modulated beam receiving circuit of light-inductive device collection carries out signal anti-interference process in the present invention, and eliminates the harmonic wave in the luminance signal after process, guarantees the flatness of luminance signal.High-frequency signal in signal and low frequency signal are regulated by differential amplifier circuit by the luminance signal after being processed by filter circuit, then the luminance signal after adjustment are carried out amplifying rear output.
As shown in Figure 3, it is by process chip U for described infrared signal receiving circuit, triode VT4, triode VT5, resistance R11, adjustable resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, polar capacitor C6, polar capacitor C7, polar capacitor C8, polar capacitor C9, polar capacitor C10, diode D5, diode D6, and diode D7 forms.
During connection, the positive pole of polar capacitor C7 is connected with the N pole of diode D5 after resistance R11, negative pole is connected with the emitter of triode VT4 after resistance R13.The positive pole of polar capacitor C6 is connected with the N pole of diode D5, negative pole is connected with the base stage of triode VT4 after adjustable resistance R12.One end of resistance R14 is connected with the SC pin of process chip U, the other end is connected with the collector electrode of triode VT4.The negative pole of polar capacitor C8 is connected with the PWM pin of process chip U, positive pole is connected with the adjustable end of adjustable resistance R12.The P pole of diode D6 is connected with the P pole of diode D5 after resistance R15, N pole is connected with the SW pin of process chip U.
The negative pole of described polar capacitor C9 is connected with the SHF pin of process chip U, positive pole is connected with the FW pin of process chip U.The P pole of diode D7 is connected with the SEN pin of process chip U after resistance R16, N pole is connected with the emitter of triode VT5.The positive pole of polar capacitor C10 is connected with the OUT pin of process chip U, negative pole is connected with the base stage of triode VT5 after resistance R17.
The VIN pin of described process chip U is connected with the negative pole of polar capacitor C8, its GND pin ground connection; The grounded collector of described triode VT5; The positive pole of described polar capacitor C7 as infrared signal receiving circuit input and be connected with infrared probe; The negative pole of described polar capacitor C10 is connected as infrared signal receiving circuit output and with the DIM pin of LTC3455 integrated chip.
The present invention operationally, infrared signal receiving circuit can be eliminated the mistake frame signal that infrared probe exports in the signal detected, also can suppress by rugged varying signal the pulse in signal, because this ensure that the signal that infrared probe detects can accurately be transferred to central processing unit.For better implementing the present invention, described process chip U then preferentially have employed the TDA3047 integrated chip with high stability and realizes.
During operation, described light-inductive device preferentially adopts RA-1805NO type light-inductive device to realize; This light-inductive device for gathering the monochrome information in grease chamber, and by the luminance information signal collected through frequency-modulated beam receiving circuit carry out signal anti-interference process and amplify regulate after give central processing unit.Brightness reference point is set with in described central processing unit, the luminance signal received is converted to data value and compares with brightness reference point by this central processing unit, and exports according to the result of comparison that corresponding to control the brightness maintenance that electric current makes LED desk lamp consistent with the brightness reference point set in central processing unit.
Meanwhile, described infrared probe is 180 ° of wide-angle infrared probes, and this infrared probe can accurately detect indoor constantly, and by the information detected by being transferred to central processing unit after the process of infrared signal receiving circuit.When infrared ray probe detection is to indoor nobody time, and by this information transmission to central processing unit, at this moment central processing unit just can automatically stop exporting control electric current after information analysis, and this LED is just closed, and now LED also can return to rebooting status.
Wherein, described display for show the intrinsic brilliance value of LED, central processing unit built-in with reference to brightness value, and the luminance difference with reference to brightness value that the intrinsic brilliance value of LED is built-in with central processing unit, is convenient to the brightness case that people understand indoor.For guaranteeing reliability service of the present invention, described infrared probe then adopts KR-P819 type infrared probe to realize.
As mentioned above, just the present invention can well be realized.
Claims (8)
1. based on the LED intelligent control system of infrared signal receiving circuit, primarily of central processing unit, light-inductive device, the display be all connected with central processing unit, infrared probe, power supply and LED, and the frequency-modulated beam receiving circuit be serially connected between light-inductive device and central processing unit forms; It is characterized in that, between infrared probe and central processing unit, be also serially connected with infrared signal receiving circuit.
2. the LED intelligent control system based on infrared signal receiving circuit according to claim 1, it is characterized in that, described infrared signal receiving circuit is by process chip U, triode VT4, triode VT5, diode D5, positive pole is connected with the N pole of diode D5 after resistance R11, the polar capacitor C7 that negative pole is connected with the emitter of triode VT4 after resistance R13, positive pole is connected with the N pole of diode D5, the polar capacitor C6 that negative pole is connected with the base stage of triode VT4 after adjustable resistance R12, one end is connected with the SC pin of process chip U, the resistance R14 that the other end is connected with the collector electrode of triode VT4, negative pole is connected with the PWM pin of process chip U, the polar capacitor C8 that positive pole is connected with the adjustable end of adjustable resistance R12, P pole is connected with the P pole of diode D5 after resistance R15, the diode D6 that N pole is connected with the SW pin of process chip U, negative pole is connected with the SHF pin of process chip U, the polar capacitor C9 that positive pole is connected with the FW pin of process chip U, P pole is connected with the SEN pin of process chip U after resistance R16, the diode D7 that N pole is connected with the emitter of triode VT5, and positive pole is connected with the OUT pin of process chip U, the polar capacitor C10 that negative pole is connected with the base stage of triode VT5 after resistance R17 forms, the VIN pin of described process chip U is connected with the negative pole of polar capacitor C8, its GND pin ground connection, the grounded collector of described triode VT5, the positive pole of described polar capacitor C7 as infrared signal receiving circuit input and be connected with infrared probe, the negative pole of described polar capacitor C10 is as infrared signal receiving circuit output and be connected with central processing unit.
3. the LED intelligent control system based on infrared signal receiving circuit according to claim 2, it is characterized in that, described frequency-modulated beam receiving circuit is then by the filter circuit be connected with light-inductive device, and the differential amplifier circuit be connected with filter circuit forms; The output of described differential amplifier circuit is connected with central processing unit.
4. the LED intelligent control system based on infrared signal receiving circuit according to claim 3, it is characterized in that, described filter circuit is by triode VT1, diode D1, polar capacitor C3, negative pole is connected with the base stage of triode VT1 after resistance R2, the polar capacitor C1 that positive pole is connected with the P pole of diode D1 after resistance R1, positive pole is connected with the base stage of triode VT1, the polar capacitor C2 that negative pole is connected with the emitter of triode VT1 after inductance L, P pole is connected with the negative pole of polar capacitor C1 after resistance R5, the diode D2 that N pole is connected with the base stage of triode VT1, one end is connected with the N pole of diode D1, the resistance R3 that the other end is connected with the negative pole of polar capacitor C2, and one end is connected with the negative pole of polar capacitor C2, the other end and the positive pole of polar capacitor C3 jointly form the output of filter circuit and the resistance R4 be connected with differential amplifier circuit forms, the negative pole of described polar capacitor C1 as filter circuit input and be connected with light-inductive device, grounded collector, its emitter of described triode VT1 are connected with the negative pole of polar capacitor C3.
5. the LED intelligent control system based on infrared signal receiving circuit according to claim 4, it is characterized in that, described differential amplifier circuit is by triode VT2, triode VT3, amplifier P1, P pole is connected with the base stage of triode VT2 after resistance R7, the diode D3 that N pole is connected with the negative pole of polar capacitor C2 after resistance R4, one end is connected with the collector electrode of triode VT3, the resistance R6 that the other end is connected with the emitter of triode VT2, P pole is connected with the P pole of diode D3 after adjustable resistance R8, the diode D4 that N pole is connected with the negative pole of amplifier P1, positive pole is connected with the P pole of diode D4, the polar capacitor C5 that negative pole is connected with the output of amplifier P1 after resistance R10, positive pole is connected with the positive pole of amplifier P1, the polar capacitor C4 of ground connection while of after negative pole is connected with the collector electrode of triode VT2, and one end is connected with the positive pole of amplifier P1, the resistance R9 that the other end is connected with the output of amplifier P1 forms, the base stage of described triode VT3 is connected with the positive pole of polar capacitor C3, its emitter is connected with the N pole of diode D3, the output of described amplifier P1 is as the output of differential amplifier circuit.
6. the LED intelligent control system based on infrared signal receiving circuit according to claim 5, is characterized in that, described light-inductive device is RA-1805NO type light-inductive device.
7. the LED intelligent control system based on infrared signal receiving circuit according to claim 6, is characterized in that, described infrared probe is KR-P819 type infrared probe.
8. the LED intelligent control system based on infrared signal receiving circuit according to claim 7, is characterized in that, described process chip U is TDA3047 integrated chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510955686.4A CN105517228A (en) | 2015-12-18 | 2015-12-18 | LED lamp intelligent control system based on infrared signal receiving circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510955686.4A CN105517228A (en) | 2015-12-18 | 2015-12-18 | LED lamp intelligent control system based on infrared signal receiving circuit |
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| CN105517228A true CN105517228A (en) | 2016-04-20 |
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| CN201510955686.4A Pending CN105517228A (en) | 2015-12-18 | 2015-12-18 | LED lamp intelligent control system based on infrared signal receiving circuit |
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| US20120313545A1 (en) * | 2011-06-08 | 2012-12-13 | Atmel Nantes S.A.S. | Pulse width modulation fault mode for illuminating device drivers |
| CN202907299U (en) * | 2012-11-06 | 2013-04-24 | 广东技术师范学院 | Laser-sensing-type intelligent energy-saving LED lighting device |
| CN203606914U (en) * | 2013-10-31 | 2014-05-21 | 滨州学院 | Infrared alarm based on single-chip microcomputer |
| CN204131805U (en) * | 2014-10-28 | 2015-01-28 | 林奕水 | A kind of intelligent multifunction LED desk lamp |
-
2015
- 2015-12-18 CN CN201510955686.4A patent/CN105517228A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120313545A1 (en) * | 2011-06-08 | 2012-12-13 | Atmel Nantes S.A.S. | Pulse width modulation fault mode for illuminating device drivers |
| CN202907299U (en) * | 2012-11-06 | 2013-04-24 | 广东技术师范学院 | Laser-sensing-type intelligent energy-saving LED lighting device |
| CN203606914U (en) * | 2013-10-31 | 2014-05-21 | 滨州学院 | Infrared alarm based on single-chip microcomputer |
| CN204131805U (en) * | 2014-10-28 | 2015-01-28 | 林奕水 | A kind of intelligent multifunction LED desk lamp |
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