A kind of adaption brightness adjusting circuit based on object and interior red dot take aim at toolTechnical field
The adaption brightness that the present invention relates to a kind of based on object adjusts circuit and interior red dot takes aim at tool.
Background technique
Existing interior red dot takes aim at one of tool, i.e. LED light mould group is mounted on the interior red dot taken aim on tool inner core chamber inner wall and takes aim atTool has the characteristic that can hide LED light mould group emergent light, especially with such interior red dot mould of solar cell for supplying powerGroup can be more the power supply of LED light mould group by sunlight, to save electric energy, while can also be according to the sunlight receivedThe brightness of the emergent light of strong and weak automatic adjusument LED light without manually adjusting, but such can generate electricity self character by day sunThe power supply mode for adjusting LED light outgoing brightness or power, there are an obviously defect, i.e., ought take aim at tool local environment light withThe illumination of object itself or local environment are inconsistent and when having stronger difference, for example, when taking aim at tool in interior, and objectWhen under outdoor sunlight irradiation, the intensity for the hot spot that LED light issues is not adapted to needed for the target in strong light environmentThe brightness wanted, faint so as to cause the interior red dot brightness of generation, it is painstaking to cause to aim at, or even almost fails.
Summary of the invention
The purpose of the present invention is overcome red dot in existing solar energy take aim at tool it is existing do not adapt to object itself orThe intensity of illumination of its local environment especially cannot result from object local environment when object is in strong light environmentThat interior red dot that light intensity adapts to and causing aims at is painstaking, the problem of even failing.
In order to achieve the above object, the present invention provides red dots in a kind of solar energy to take aim at tool, including be arranged power supply on the body,Solar panel, setting further include to acquire shooting on the body or intrinsic circuit control panel and LED luminescence chipThe photoelectric sensor of the illuminance signal on target or the goal periphery；
The circuit control panel is obtained according to the illuminance signal of the photoelectric sensor be supplied to LED luminescence chip needed forElectric energy, and the electric energy is compared with the solar energy-electric energy that the solar panel provides, to be less than in solar energy-electric energyWhen the electric energy, the circuit control panel connects the power supply to power to compensating property of LED luminescence chip, so that shouldLED luminescence chip obtains enough electric energy work；
Or when the solar energy signal is stronger, only powered by the solar panel to the LED luminescence chip；
The goal is clearly irradiated to ensure that the brightness of the LED luminescence chip is in.
Above-mentioned photoelectric sensor is placed in the side of the LED luminescence chip.
It further include being mounted on the intrinsic inner core, the photoelectric sensor and the LED luminescence chip are installed inThe inner wall of the inner core.
It further include the Lens mounting carrier for being mounted on the bodies top front end, the LED luminescence chip is mounted on describedBody rear end, the photoelectric sensor are mounted on the inner wall of the Lens mounting carrier.
A kind of adaption brightness adjusting circuit based on object, including LED light source, MCU, illuminance sensor, the sunCan power voltage regulator circuit, supplying cell and LED light source gear control circuit；
The illuminance sensor passes through signal amplification circuit for the object reflected light of acquisition or the environment light on object peripheryIlluminance signal be transferred to the MCU；
The solar powered voltage regulator circuit is connect with the LED light source；
The supplying cell is connect by the MCU with the LED light source；
The solar powered voltage regulator circuit is connect by solar energy compensation circuit with the MCU；
The circuit control panel is obtained according to the illuminance signal of the photoelectric sensor be supplied to LED luminescence chip needed forElectric energy, and the electric energy is compared with the solar energy-electric energy that the solar panel provides, to be less than in solar energy-electric energyWhen the electric energy, the circuit control panel connects the power supply to power to compensating property of LED luminescence chip, so that shouldLED luminescence chip obtains enough electric energy work；
Or when the solar energy signal is stronger, only powered by the solar powered voltage regulator circuit to the LED light source, fromAnd ensures the brightness of the LED light source always and be in stronger state.
The invention has the advantages that structure is simple, it can be according to object itself and its illumination adaptive tune of local environmentThe brightness of LED light is saved, so that the outgoing brightness that interior red dot takes aim at the i.e. LED light of brightness of the interior red dot on tool meets clear aim atThe needs of auxiliary can be very good to save lithium battery energy without manually adjusting lithium battery power supply.
It elaborates with reference to the accompanying drawings and examples to the present invention.
Detailed description of the invention
Fig. 1 is that red dot takes aim at lamps structure schematic diagram in a kind of solar energy.
Fig. 2 is the portion A enlarged drawing in Fig. 1.
Fig. 3 is the model core arrangement schematic diagram that red dot takes aim at tool in another pipe type solar energy.
Fig. 4 is the portion the B enlarged drawing of Fig. 3.
Fig. 5 is a kind of schematic illustration of adaption brightness adjusting circuit based on object.
Fig. 6 is a kind of sun voltage regulator circuit figure.
Fig. 7 is a kind of solar energy compensating switch circuit diagram.
Fig. 8 is a kind of gear control circuit figure.
Fig. 9 is a kind of signal amplification circuit figure.
Figure 10 is a kind of MCU and its peripheral circuit figure.
Description of symbols: 1, ontology；2, solar panel；3, rear end end；4, LED luminescence chip；5, photoelectric transferSensor；6, inner core；7, Lens mounting carrier；8, LED base.
Specific embodiment
Fig. 1,2 show red dot in a kind of solar energy and take aim at tool, including power supply, the solar panel being arranged on ontology 12, the circuit control panel on ontology 1 or in ontology 1 and LED luminescence chip 4 are set, further include being arranged in LED luminescence chip 4 one(Fig. 1 show open interior red dot and takes aim at tool, the Lens mounting carrier 7 including being mounted on 1 top nose of ontology, and LED shines core for sidePiece 4 is mounted on 1 rear end end 3 of ontology, then photoelectric sensor 8 can also be mounted on the inner wall of Lens mounting carrier 7, pacify by lensThe effectively worry of blocking for shelving 7 removes or weakens the light interference that interior red dot takes aim at tool local environment, the reflections of more acquisition goalsThe light intensity of light intensity or its local environment, thus for control circuit obtain with goal it is matched can provide it is obvious bright interiorThe reference signal of red dot compensates the size of current of power supply conducive to control circuit control battery, cooperates solar cell for supplying powerTo LED.) photoelectric sensor 5(or be illuminance sensor, to detection light shine strength signal), the photoelectric sensor 5To acquire the illuminance signal of goal or the goal periphery；Circuit control panel is according to the illumination of photoelectric sensor 5Degree signal with obtain be supplied to LED luminescence chip 4 needed for electric energy, and the sun that the electric energy and solar panel 2 are providedEnergy electric energy is compared, with when solar energy-electric energy is less than the electric energy, circuit control panel powers on to LED luminescence chipThe power supply of 4 compensating property is shone by battery to LED so that the LED luminescence chip 4 obtains enough electric energy workThe electric flux that chip 4 provides is the core that should shine to LED that circuit control panel is generated according to the illuminance signal of photoelectric sensor 5Difference between the solar-electricity energy that the electric flux and solar panel 2 that piece 4 provides provide, so that it is guaranteed that LED luminescence chip 4There are enough electric energy to work normally.Or when solar energy signal is stronger, only supplied by solar panel 2 to LED luminescence chip 4Electricity.By such circuit structure, may insure that the brightness of LED luminescence chip 4 is in clear irradiation goal, i.e., with shooting meshIt marks anti-body or its local environment light intensity is adapted, to provide clear, bright red dot instruction, i.e., regardless of locating for goalHow is the light intensity of environment, remains that interior red dot brightness is relatively strong, refers to provide bright, obvious luminous point for userShow, is conducive to precisely aim at.
And Fig. 3,4 show another tubular type with solar panel auxiliary power supply interior red dot take aim at tool inner core schematic diagram(it includes the inner core 6 being mounted in ontology 1 that i.e. the interior red dot, which takes aim at tool, and photoelectric sensor 5 and LED luminescence chip 4 are installed in inner core6 inner wall, wherein photoelectric sensor 5 and LED luminescence chip 4 are mounted in the LED base 8 in inner core 6), in inner core 6PD, that is, illuminance sensor is installed, to detect the object reflected light or target that enter in core pipe near the LED chip of wallThe intensity of environment light near object, and it is transferred to MCU, it is compared with the power supply signal with solar panel, as shown in figure 5, i.e.A kind of adaption brightness adjusting circuit based on object, including LED light source (LED luminescence chip), MCU, illuminance sensor(photoelectric sensor), solar powered voltage regulator circuit, supplying cell and LED light source gear control circuit (not illustrated in figure)；Illuminance sensor passes through signal amplification circuit for the object reflected light of acquisition or the illuminance of the environment light on object peripherySignal is transferred to the MCU；Solar powered voltage regulator circuit is connect with LED light source；Supplying cell is connected by MCU and LED light sourceIt connects；Solar powered voltage regulator circuit is connect by solar energy compensation circuit with MCU；MCU is by illuminance signal and comes from solar energyThe solar-electricity source signal of power supply voltage regulator circuit is compared, with when illuminance signal is stronger, in solar powered pressure stabilizing electricityWhile road powers to LED light source, supplying cell is connected by solar energy compensation circuit and is powered to compensating property of LED light source；Or when solar energy signal is stronger, only powered by solar powered voltage regulator circuit to LED light source, to ensure always describedThe brightness of LED light source is in stronger state.
In this way, sample run-home object itself or the environment light near it intensity by photoelectric sensor and take aim atThe sampled signal for having the solar energy electroplax of local environment is compared, and it is that LED light is powered that it is stronger, which therefrom to choose signal, can be begunEnsure that the emergent light of LED light maintains higher brightness eventually, is especially advantageous for auxiliary and aims at.
Fig. 6 show solar powered voltage regulator circuit, transmits sampled signal to model shown in Fig. 10 by GDC_AN1For the MCU and peripheral circuit of PIC16F1508, and the signal of illuminance sensor is filtered through signal amplification circuit shown in Fig. 9Be transmitted to MUC after wave, enhanced processing, MCU by the signal compared with the signal of solar powered voltage regulator circuit after, to believe in illuminanceWhen number stronger, while solar powered voltage regulator circuit is powered to LED light source, pass through solar energy compensation circuit shown in Fig. 7Supplying cell is connected to power to compensating property of LED light source；Or when solar energy signal is stronger, only pass through solar powered pressure stabilizingCircuit is powered to LED light source, to ensure that the brightness of LED light source is in stronger state always.And the brightness regulation of LED light sourceIt is carried out using gear control circuit shown in Fig. 8, this is generally conventional gear, does not do excessive introduction herein.
In the present embodiment, selection be will in addition to solar panel, by illuminance sensor, MCU, LED shine corePiece is integrated on one piece of circuit board, and installs the surface of internal cavity or base rear end shown in FIG. 1 of the inner core 2 shown in Fig. 3 for taking aim at toolLED chip mounting rack on, allow for photoelectric sensor in this way is influenced with regard to very little, more by the illumination for having local environment itself is taken aim atEnvironment light of more receptions from object itself or its periphery shines to meet the LED lamplight being adaptively adapted to objectDesign object.