CN105376895A - LED lamp multifunctional control system based on brightness signal processing circuit - Google Patents
LED lamp multifunctional control system based on brightness signal processing circuit Download PDFInfo
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- CN105376895A CN105376895A CN201510980155.0A CN201510980155A CN105376895A CN 105376895 A CN105376895 A CN 105376895A CN 201510980155 A CN201510980155 A CN 201510980155A CN 105376895 A CN105376895 A CN 105376895A
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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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- 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]
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Abstract
The invention discloses an LED lamp multifunctional control system based on a brightness signal processing circuit. The multifunctional control system is mainly composed of a single-chip microcomputer, a power supply, a brightness sensor, an infrared detector, a display, a data memory, an LED lamp and a triode rectification filtering voltage-stabilizing circuit which is connected in series between the power supply and the single-chip microcomputer; and the infrared detector, the display, the data memory and the LED lamp are connected with the single-chip microcomputer. The multifunctional control system is characterized in that the brightness signal processing circuit is further connected in series between the brightness sensor and the single-chip microcomputer; and the triode rectification filtering voltage-stabilizing circuit is composed of a transformer I, a diode rectifier U1, a polar capacitor C1, a voltage detection circuit connected with the diode rectifier U1, and a voltage-stabilizing output circuit connected with an output end of the voltage detection circuit. The LED lamp multifunctional control system can output a stable drive current, and can automatically control the LED lamp to be turned on or off, so people's requirements for the LED lamp on the energy-saving aspect and on intelligent control aspect are satisfied.
Description
Technical field
The present invention relates to the technical field of electronic equipment, specifically refer to a kind of LED multifunction control system based on luminance signal processing circuit.
Background technology
At present, LED, as novel energy-conserving light source, with its environmental protection, the feature such as energy-conservation, the life-span is long, volume is little, is extensively received by people and adopts.Along with people's living standard constantly improves, no matter at home or in shop LED brightness and energy consumption are had higher requirement, namely people need, while improving LED brightness further, to need LED to have lower energy consumption, and can carry out intelligentized control method to the use of LED.
But the LED that current people use, because stability of control system is poor, and the drive current exported is unstable, and to the unlatching of LED or close and Automated condtrol cannot be realized, cause a large amount of energy wastes, thus people can not be met to the requirement of LED in energy-conservation.
Summary of the invention
The object of the invention is to the control system overcoming LED of the prior art, and the drive current exported is unstable, and to the unlatching of LED or close the defect that cannot realize Automated condtrol, the invention provides a kind of LED multifunction control system based on luminance signal processing circuit.
The present invention is achieved through the following technical solutions: a kind of LED multifunction control system based on luminance signal processing circuit, primarily of single-chip microcomputer, power supply, luminance sensor, the pyroscan be all connected with single-chip microcomputer, display, data storage and LED, and be serially connected in the triode rectification filtering voltage stabilizing circuit composition between power supply and single-chip microcomputer; Meanwhile, between luminance sensor and single-chip microcomputer, also luminance signal processing circuit is serially connected with.
Described luminance signal processing circuit is by amplifier P1, amplifier P2, triode VT5, triode VT6, negative pole is connected with the positive pole of amplifier P1, the polar capacitor C5 that positive pole is connected with luminance sensor as the input of luminance signal processing circuit, negative pole is connected with the base stage of triode VT6 after resistance R13, the polar capacitor C6 that positive pole is connected with the positive pole of polar capacitor C5 after resistance R10, P pole is connected with the positive pole of polar capacitor C5 after resistance R11 through resistance R12 in turn, the diode D4 that N pole is connected with the collector electrode of triode VT5, negative pole is connected with the emitter of triode VT5 after adjustable resistance R14 through resistance R15 in turn, the polar capacitor C8 that positive pole is connected with the output of amplifier P2, positive pole is connected with the output of amplifier P1, the polar capacitor C7 that negative pole is connected with the base stage of triode VT5, P pole is connected with the output of amplifier P1, the diode D5 that N pole is connected with the collector electrode of triode VT6, and P pole is connected with the base stage of triode VT6 after resistance R16, the diode D6 that N pole is connected with the output of amplifier P2 after resistance R17 forms, the minus earth of described amplifier P1, the output of described amplifier P2 as luminance signal processing circuit output and be connected with single-chip microcomputer.
Described triode rectification filtering voltage stabilizing circuit is by transformer T, one of them input has the diode rectifier U1 that the Same Name of Ends of the secondary inductance coil of transformer T is connected, another input is connected with the non-same polarity of the secondary inductance coil of transformer T, the polar capacitor C1 that positive pole is connected with the cathode output end of diode rectifier U1, negative pole is connected with the cathode output end of diode rectifier U1, the voltage detecting circuit be connected with diode rectifier U1, and the voltage-stabilizing output circuit be connected with the output of voltage detecting circuit forms; The Same Name of Ends of the former limit inductance coil of described transformer T jointly forms the input of triode rectification filtering voltage stabilizing circuit with non-same polarity and is connected with power supply; The output of described voltage-stabilizing output circuit is then connected with single-chip microcomputer.
Described voltage detecting circuit is by triode VT1, triode VT2, P pole is connected with the collector electrode of triode VT2 after resistance R2, the diode D1 that N pole is connected with the emitter of triode VT1 after resistance R1, positive pole is connected with the collector electrode of triode VT1 after resistance R4, the output of negative pole and the common coating-forming voltage testing circuit of the emitter of triode VT2 the polar capacitor C2 be connected with voltage-stabilizing output circuit, positive pole is connected with the base stage of triode VT2, the polar capacitor C3 that negative pole is connected with the negative pole of polar capacitor C2 after resistance R5, and one end is connected with the N pole of diode D1, the adjustable resistance R3 that the other end is connected with the negative pole of polar capacitor C3 forms, the base stage of described triode VT1 is connected with the cathode output end of diode rectifier U1, the P pole of described diode D1 is connected with the cathode output end of diode rectifier U1.
Described voltage-stabilizing output circuit is by triode VT3, triode VT4, voltage stabilizing didoe D2, positive pole is connected with the emitter of triode VT4, the polar capacitor C4 that negative pole is connected with the emitter of triode VT3 after resistance R8, P pole is connected with the emitter of triode VT2 after resistance R6, the diode D3 that N pole is connected with the collector electrode of triode VT4 after resistance R7, one end is connected with the P pole of voltage stabilizing didoe D2, the resistance R7 that the other end is connected with the P pole of diode D3, and one end is connected with the P pole of voltage stabilizing didoe D2, the resistance R9 that the other end is connected with the base stage of triode VT4 forms, grounded collector, its base stage of described triode VT3 are then connected with the negative pole of polar capacitor C2, the negative pole of described polar capacitor C4 and the N of diode D3 form the output of voltage-stabilizing output circuit extremely jointly.
For guaranteeing practical effect of the present invention, described pyroscan preferentially adopts TR350 type pyroscan to realize; Display then preferentially have employed the LCDs with touch-input function and realizes.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) luminance signal that luminance sensor exports can be carried out filter and amplification by luminance signal processing circuit of the present invention, ensure that luminance signal can accurately be transferred to single-chip microcomputer, ensure that the accuracy of LED multifunction control system of the present invention simultaneously.
(2) triode rectification filtering voltage stabilizing circuit of the present invention is converted to 12V direct voltage after supply voltage being carried out rectifying and wave-filtering, export after this 12V direct voltage can also being carried out voltage stabilizing, guarantee, for single-chip microcomputer provides stable voltage, to ensure that the certainty of control system of the present invention simultaneously.
(3) present invention employs pyroscan, this pyroscan has stable performance, highly sensitive, the advantages such as low price.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present invention.
Fig. 2 is the electrical block diagram of triode rectification filtering voltage stabilizing circuit of the present invention.
Fig. 3 is the electrical block diagram of luminance signal processing 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 single-chip microcomputer, power supply, luminance sensor, the pyroscan be all connected with single-chip microcomputer, display, data storage and LED, be serially connected in the luminance signal processing circuit between luminance sensor and single-chip microcomputer, and be serially connected in the triode rectification filtering voltage stabilizing circuit composition between power supply and single-chip microcomputer.
Wherein, as shown in Figure 2, it is by transformer T, diode rectifier U1, polar capacitor C1, voltage detecting circuit for described triode rectification filtering voltage stabilizing circuit, and voltage-stabilizing output circuit composition.
The input of described diode rectifier U1 has that the Same Name of Ends of the secondary inductance coil of transformer T is connected, another input is connected with the non-same polarity of the secondary inductance coil of transformer T.The positive pole of described polar capacitor C1 is connected with the cathode output end of diode rectifier U1, negative pole is connected with the cathode output end of diode rectifier U1.Described voltage detecting circuit is connected with diode rectifier U1.Described voltage-stabilizing output circuit is connected with the output of voltage detecting circuit, and the output of this voltage-stabilizing output circuit is then connected with single-chip microcomputer.The Same Name of Ends of the former limit inductance coil of described transformer T jointly forms the input of triode rectification filtering voltage stabilizing circuit with non-same polarity and is connected with power supply.
For guaranteeing reliability service of the present invention, described single-chip microcomputer preferentially adopts QX9910M integrated chip, and the BST pin of this QX9910M integrated chip is connected with data storage, and NC pin is connected with display, OUT pin is connected with LED, and RT pin is connected with pyroscan.Described power supply is 220V alternating voltage, and this 220V alternating voltage carries out being converted to 12V direct voltage after rectifying and wave-filtering through triode rectification filtering voltage stabilizing circuit, and for single-chip microcomputer is powered after this 12V direct voltage is carried out voltage stabilizing.
As shown in Figure 2, described voltage detecting circuit by triode VT1, triode VT2, resistance R1, resistance R2, adjustable resistance R3, resistance R4, resistance R5, polar capacitor C2, polar capacitor C3, and diode D1 forms.
During connection, the P pole of diode D1 is connected with the collector electrode of triode VT2 after resistance R2, N pole is connected with the emitter of triode VT1 after resistance R1.The positive pole of polar capacitor C2 is connected with the collector electrode of triode VT1 after resistance R4, the output of negative pole and the common coating-forming voltage testing circuit of the emitter of triode VT2 being connected with voltage-stabilizing output circuit.The positive pole of polar capacitor C3 is connected with the base stage of triode VT2, negative pole is connected with the negative pole of polar capacitor C2 after resistance R5.One end of adjustable resistance R3 is connected with the N pole of diode D1, the other end is connected with the negative pole of polar capacitor C3.The base stage of described triode VT1 is connected with the cathode output end of diode rectifier U1; The P pole of described diode D1 is connected with the cathode output end of diode rectifier U1.
Further, described voltage-stabilizing output circuit by triode VT3, triode VT4, voltage stabilizing didoe D2, resistance R6, resistance R7, resistance R8, resistance R9, polar capacitor C4, and diode D3 forms.
During connection, the positive pole of polar capacitor C4 is connected with the emitter of triode VT4, negative pole is connected with the emitter of triode VT3 after resistance R8.The P pole of diode D3 is connected with the emitter of triode VT2 after resistance R6, N pole is connected with the collector electrode of triode VT4 after resistance R7.One end of resistance R7 is connected with the P pole of voltage stabilizing didoe D2, the other end is connected with the P pole of diode D3.One end of resistance R9 is connected with the P pole of voltage stabilizing didoe D2, the other end is connected with the base stage of triode VT4.Grounded collector, its base stage of described triode VT3 are then connected with the negative pole of polar capacitor C2; The negative pole of described polar capacitor C4 is connected with the VC pin of QX9910M integrated chip; The N pole of described diode D3 is connected with the PC pin of QX9910M integrated chip.
The present invention operationally, triode rectification filtering voltage stabilizing circuit is converted to 12V direct voltage after supply voltage being carried out rectifying and wave-filtering, export after this 12V direct voltage can also being carried out voltage stabilizing, guarantee, for single-chip microcomputer provides stable voltage, to ensure that the certainty of control system of the present invention simultaneously.
As shown in Figure 3, it is by amplifier P1, amplifier P2, triode VT5 for described luminance signal processing circuit, triode VT6, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, polar capacitor C5, polar capacitor C6, polar capacitor C7, polar capacitor C8, diode D4, diode D5, and diode D6 forms.
During connection, the negative pole of polar capacitor C5 is connected with the positive pole of amplifier P1, positive pole is connected with luminance sensor as the input of luminance signal processing circuit.The negative pole of polar capacitor C6 is connected with the base stage of triode VT6 after resistance R13, positive pole is connected with the positive pole of polar capacitor C5 after resistance R10.The P pole of diode D4 is connected with the positive pole of polar capacitor C5 after resistance R11 through resistance R12 in turn, N pole is connected with the collector electrode of triode VT5.
The negative pole of described polar capacitor C8 is connected with the emitter of triode VT5 after adjustable resistance R14 through resistance R15 in turn, positive pole is connected with the output of amplifier P2.The positive pole of polar capacitor C7 is connected with the output of amplifier P1, negative pole is connected with the base stage of triode VT5.The P pole of diode D5 is connected with the output of amplifier P1, N pole is connected with the collector electrode of triode VT6.The P pole of diode D6 is connected with the base stage of triode VT6 after resistance R16, N pole is connected with the output of amplifier P2 after resistance R17.
The minus earth of described amplifier P1; The output of described amplifier P2 as luminance signal processing circuit output and be connected with the SET pin of QX9910M integrated chip.Operationally, the luminance signal that luminance sensor exports can be carried out filter and amplification by luminance signal processing circuit, ensure that luminance signal can accurately be transferred to single-chip microcomputer in the present invention.
During operation, described pyroscan preferentially adopts TR350 type pyroscan to realize, and this pyroscan is used for detecting the people entered in the scope of application of LED, and by detected information transmission to single-chip microcomputer.When the information that pyroscan transmits be someone enter time, described single-chip microcomputer then outputs signal to brightness impression device.Brightness impression device of the present invention have employed APDS-9002 brightness impression device, described brightness impression device then gathers the monochrome information in the scope of application of LED, and gathered luminance signal is carried out being transferred to single-chip microcomputer after filter and amplification through luminance signal processing circuit, single-chip microcomputer is converted to brightness data signal after then this luminance signal being passed through process and compares with the brightness value prestored in data storage, if when this intrinsic brilliance data-signal is less than the brightness value prestored in data storage, described single-chip microcomputer exports and controls electric current to LED, now LE lamp is bright by electricity.Otherwise when this intrinsic brilliance data-signal is greater than the brightness value prestored in data storage, described single-chip microcomputer then can not export and control electric current to LED, and now LED is not bright by electricity.
Wherein, display of the present invention then preferentially have employed the LCDs with touch-input function and realizes.Described display is used for regulating the brightness value prestored in data storage, people can be regulated the brightness value prestored in data storage by the function key with the LCDs of touch-input function according to individual Man's Demands, control the unlatching of LED.
Brightness impression device of the present invention can not gather brightness after LED is lit, and when described pyroscan detect people leave time, and by this Signal transmissions to single-chip microcomputer, described single-chip microcomputer then stops exporting to LED controlling electric current, now, this LED is closed.
As mentioned above, just the present invention can well be realized.
Claims (7)
1. the LED multifunction control system based on luminance signal processing circuit, primarily of single-chip microcomputer, power supply, luminance sensor, the pyroscan be all connected with single-chip microcomputer, display, data storage and LED, and be serially connected in the triode rectification filtering voltage stabilizing circuit composition between power supply and single-chip microcomputer; It is characterized in that, between luminance sensor and single-chip microcomputer, be also serially connected with luminance signal processing circuit.
2. a kind of LED multifunction control system based on luminance signal processing circuit according to claim 1, it is characterized in that, described luminance signal processing circuit is by amplifier P1, amplifier P2, triode VT5, triode VT6, negative pole is connected with the positive pole of amplifier P1, the polar capacitor C5 that positive pole is connected with luminance sensor as the input of luminance signal processing circuit, negative pole is connected with the base stage of triode VT6 after resistance R13, the polar capacitor C6 that positive pole is connected with the positive pole of polar capacitor C5 after resistance R10, P pole is connected with the positive pole of polar capacitor C5 after resistance R11 through resistance R12 in turn, the diode D4 that N pole is connected with the collector electrode of triode VT5, negative pole is connected with the emitter of triode VT5 after adjustable resistance R14 through resistance R15 in turn, the polar capacitor C8 that positive pole is connected with the output of amplifier P2, positive pole is connected with the output of amplifier P1, the polar capacitor C7 that negative pole is connected with the base stage of triode VT5, P pole is connected with the output of amplifier P1, the diode D5 that N pole is connected with the collector electrode of triode VT6, and P pole is connected with the base stage of triode VT6 after resistance R16, the diode D6 that N pole is connected with the output of amplifier P2 after resistance R17 forms, the minus earth of described amplifier P1, the output of described amplifier P2 as luminance signal processing circuit output and be connected with single-chip microcomputer.
3. a kind of LED multifunction control system based on luminance signal processing circuit according to claim 2, it is characterized in that, described triode rectification filtering voltage stabilizing circuit is by transformer T, one of them input has the Same Name of Ends of the secondary inductance coil of transformer T to be connected, the diode rectifier U1 that another input is connected with the non-same polarity of the secondary inductance coil of transformer T, positive pole is connected with the cathode output end of diode rectifier U1, the polar capacitor C1 that negative pole is connected with the cathode output end of diode rectifier U1, the voltage detecting circuit be connected with diode rectifier U1, and the voltage-stabilizing output circuit to be connected with the output of voltage detecting circuit forms, the Same Name of Ends of the former limit inductance coil of described transformer T jointly forms the input of triode rectification filtering voltage stabilizing circuit with non-same polarity and is connected with power supply, the output of described voltage-stabilizing output circuit is then connected with single-chip microcomputer.
4. a kind of LED multifunction control system based on luminance signal processing circuit according to claim 3, it is characterized in that, described voltage detecting circuit is by triode VT1, triode VT2, P pole is connected with the collector electrode of triode VT2 after resistance R2, the diode D1 that N pole is connected with the emitter of triode VT1 after resistance R1, positive pole is connected with the collector electrode of triode VT1 after resistance R4, the output of negative pole and the common coating-forming voltage testing circuit of the emitter of triode VT2 the polar capacitor C2 be connected with voltage-stabilizing output circuit, positive pole is connected with the base stage of triode VT2, the polar capacitor C3 that negative pole is connected with the negative pole of polar capacitor C2 after resistance R5, and one end is connected with the N pole of diode D1, the adjustable resistance R3 that the other end is connected with the negative pole of polar capacitor C3 forms, the base stage of described triode VT1 is connected with the cathode output end of diode rectifier U1, the P pole of described diode D1 is connected with the cathode output end of diode rectifier U1.
5. a kind of LED multifunction control system based on luminance signal processing circuit according to claim 4, it is characterized in that, described voltage-stabilizing output circuit is by triode VT3, triode VT4, voltage stabilizing didoe D2, positive pole is connected with the emitter of triode VT4, the polar capacitor C4 that negative pole is connected with the emitter of triode VT3 after resistance R8, P pole is connected with the emitter of triode VT2 after resistance R6, the diode D3 that N pole is connected with the collector electrode of triode VT4 after resistance R7, one end is connected with the P pole of voltage stabilizing didoe D2, the resistance R7 that the other end is connected with the P pole of diode D3, and one end is connected with the P pole of voltage stabilizing didoe D2, the resistance R9 that the other end is connected with the base stage of triode VT4 forms, grounded collector, its base stage of described triode VT3 are then connected with the negative pole of polar capacitor C2, the negative pole of described polar capacitor C4 and the N of diode D3 form the output of voltage-stabilizing output circuit extremely jointly.
6. a kind of LED multifunction control system based on luminance signal processing circuit according to claim 5, is characterized in that, described pyroscan is TR350 type pyroscan.
7. a kind of LED multifunction control system based on luminance signal processing circuit according to claim 6, it is characterized in that, described display have employed the LCDs with touch-input function.
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| CN201510980155.0A CN105376895A (en) | 2015-12-23 | 2015-12-23 | LED lamp multifunctional control system based on brightness signal processing circuit |
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| CN201510980155.0A CN105376895A (en) | 2015-12-23 | 2015-12-23 | LED lamp multifunctional control system based on brightness signal processing circuit |
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| CN105376895A true CN105376895A (en) | 2016-03-02 |
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| CN201510980155.0A Pending CN105376895A (en) | 2015-12-23 | 2015-12-23 | LED lamp multifunctional control system based on brightness signal processing circuit |
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Application publication date: 20160302 |