CN110290620B - High-power solar lamp control circuit and method based on microwave human body induction - Google Patents
High-power solar lamp control circuit and method based on microwave human body induction Download PDFInfo
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- CN110290620B CN110290620B CN201910657935.XA CN201910657935A CN110290620B CN 110290620 B CN110290620 B CN 110290620B CN 201910657935 A CN201910657935 A CN 201910657935A CN 110290620 B CN110290620 B CN 110290620B
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- 230000006698 induction Effects 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims description 5
- 238000005286 illumination Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
-
- 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]
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a high-power solar lamp control circuit based on microwave human body induction, which comprises a control circuit, a power supply circuit, a microwave human body induction circuit, an output circuit, a solar battery and a lithium battery, wherein the control circuit is respectively connected with the power supply circuit, a radio frequency circuit and the output circuit and is used for controlling the power supply circuit and the output circuit and receiving detection signals output by the microwave human body induction circuit, the microwave human body induction circuit is connected with the power supply circuit, the output circuit is connected with the lithium battery, the solar battery and the lithium battery are connected in parallel, the lithium battery is used for providing electric energy for the power supply circuit and the output circuit, and the power supply circuit is used for providing electric energy for the control circuit and the microwave human body induction circuit. The power supply of the chip is provided in a mode of boosting before reducing, so that the stability of the voltage of the chip is ensured, the interference of power supply fluctuation to the chip is avoided, and the accuracy of radar detection is improved.
Description
Technical Field
The invention relates to the technical field of solar lamps, in particular to a high-power solar lamp control circuit based on microwave human body induction.
Background
Along with the increase of people's environmental awareness, the idea of reasonable utilization of resources is gradually accepted and strengthened. The microwave radar induction solar lamp is also a product for energy conservation and reasonable resource utilization, in the current radar induction solar lamp product, the power supply of a radar antenna part and the input of chip power supply are directly connected from lithium battery input, and the common power is 2-5W, but under the condition of the power, the control module has the phenomena of higher temperature, element damage and the like. Under the condition of high power, when a load (a lamp group) is in full-load operation, the input voltage of the lithium battery is pulled down by the load; or when lithium battery voltage is insufficient, the AD port acquisition voltage at the periphery of the chip has a certain probability of jitter, but the jitter can cause the chip to interfere with the judgment of the RF signal because the RF signal acquired by the chip is a small magnitude of deviation of 10/65535 volts. Jitter occurring in the MOS tube in the module can influence the working state of the radar antenna, and the phenomenon of no induction is generated.
Therefore, how to reduce the change of the voltage of the lithium battery, which causes the change of the working state of the radar antenna, and influence the detection of human bodies in the environment, is a problem to be solved at present.
Disclosure of Invention
The invention aims to provide a high-power solar lamp control circuit based on microwave human body induction, which is characterized in that the control circuit is arranged, the microwave human body induction circuit and a power supply thereof are disconnected during the daytime, the microwave human body induction circuit is connected during the blackish, and is used for detecting whether a human body exists in a certain range, and the power supply adopts a mode of voltage boosting and voltage reducing, so that the power supply is ensured to have no fluctuation, the detection accuracy is improved, and the electric energy is saved.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a high-power solar lamp control circuit based on human response of microwave, includes control circuit, power supply circuit, microwave human response circuit, output circuit, solar cell, lithium cell, control circuit is connected with power supply circuit, radio frequency circuit, output circuit respectively for control power supply circuit, output circuit, receive the detected signal of the human response circuit output of microwave, microwave human response circuit is connected with power supply circuit, output circuit is connected with the lithium cell, solar cell, lithium cell parallel connection, the lithium cell is used for providing power supply circuit, output circuit, power supply circuit is used for providing the electric energy for control circuit, the human response circuit of microwave.
The invention is further provided with: the power supply circuit comprises a power supply control circuit, a voltage boosting circuit and a voltage reducing circuit which are sequentially connected, and the input end of the power supply control circuit is connected with the output end of the lithium battery.
The invention is further provided with: the microwave human body induction circuit is connected with the output end of the booster circuit, and the booster circuit is used for providing electric energy for the microwave human body induction circuit.
The invention is further provided with: the control circuit is connected with the output end of the voltage reduction circuit and is used for providing electric energy for the control circuit.
The invention is further provided with: the power supply control circuit comprises a triode and a first switch tube, wherein the base electrode of the triode is connected with the first output end of the control circuit through a first resistor, the emitter electrode of the triode is connected with the cathode of the lithium battery, the collector electrode of the triode is connected with the control end of the first switch tube and one end of a second resistor, the second end of the second resistor is connected with the input end of the first switch tube and the anode of the lithium battery, and the output end of the first switch tube is connected with the boost circuit.
The invention is further provided with: the boost circuit comprises an inductor and a three-terminal power supply circuit, one end of the inductor is connected with the output of the power supply control circuit, the other end of the inductor is connected with the input end of the three-terminal power supply circuit, the second end of the three-terminal power supply circuit is connected with the cathode of the lithium battery, and the output end of the three-terminal power supply circuit is connected with the buck circuit.
The invention is further provided with: the microwave human body induction circuit comprises a high-frequency triode, an antenna, a filter circuit 1 and a filter circuit 2, wherein the base electrode of the high-frequency triode is connected with the emitting end of the antenna and one end of a third resistor, the other end of the third resistor and the collector electrode of the high-frequency triode are connected with the output end of a booster circuit, the emitting electrode of the high-frequency triode is connected with the receiving end of the antenna, the receiving end of the antenna is connected with the filter circuit 2, the output end of the filter circuit 2 is connected with the control circuit, the filter circuit 1 is connected with the output end of the booster circuit and is used for filtering the output of the booster circuit, and the filter circuit 1 and the filter circuit 2 share radio frequency ground.
The invention is further provided with: the output circuit comprises a second switch tube and a third switch tube and is used for driving the large-function solar lamp.
The invention is further provided with: the control method comprises the following steps:
s1, judging whether the daytime is carried out, if so, entering the next step, and if not, turning to S3;
s2, the control circuit controls the power supply circuit and the output circuit to be disconnected, and the microwave human body induction circuit disconnects the power supply and turns to S1;
s3, the control circuit controls the power circuit to be connected, and the microwave human body induction circuit is electrified to work;
s4, the control circuit detects an output signal of the microwave human body induction circuit, judges whether a human body moves within a certain range, if so, enters the next step, and if not, continues to detect;
s5, the control circuit controls the output circuit to be connected, and illumination is provided.
The invention is further provided with: the step S2 and the step S3 are realized by controlling the switching on or off of a switching tube in the power supply control circuit by the control circuit.
Compared with the prior art, the invention has the beneficial technical effects that:
1. the power supply of the chip is provided in a mode of boosting and then reducing, so that the stability of the voltage of the chip is ensured, the interference of power supply fluctuation to the chip is avoided, and the accuracy of radar detection is improved;
2. furthermore, the chip is not powered in the daytime, and the power is only supplied to the chip after the chip is black, so that the electric energy is saved.
Drawings
FIG. 1 is a schematic circuit diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a power circuit configuration of an embodiment of the present invention;
FIG. 3 is a schematic diagram of a specific power circuit configuration of one embodiment of the present invention;
FIG. 4 is a schematic diagram of a microwave human body sensing circuit in accordance with one embodiment of the present invention;
FIG. 5 is a schematic diagram of an output circuit configuration according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a control circuit structure according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Detailed description of the preferred embodiments
The invention discloses a high-power solar lamp control circuit based on microwave human body induction, which is shown in figure 1 and comprises a control circuit, a power supply circuit, a microwave human body induction circuit, an output circuit, a solar battery and a lithium battery, wherein the control circuit is respectively connected with the power supply circuit, the microwave human body induction circuit and the output circuit and is used for controlling the power supply circuit and the output circuit and receiving detection signals output by the microwave human body induction circuit; the microwave human body induction circuit is connected with the power supply circuit, the output circuit is connected with the lithium battery, the solar battery and the lithium battery are connected in parallel, the lithium battery is used for providing electric energy for the power supply circuit and the output circuit, and the power supply circuit is used for providing electric energy for the control circuit and the microwave human body induction circuit.
The solar lamp control circuit further comprises a lithium battery voltage sampling circuit and a solar battery voltage sampling circuit, wherein the lithium battery is used for storing electric energy generated by the solar battery, and the lithium battery voltage sampling circuit is used for sampling the voltage of the lithium battery and transmitting the sampled voltage to the control circuit; the solar battery voltage sampling circuit is used for sampling the voltage of the lithium battery and transmitting the sampled voltage to the control circuit.
As shown in fig. 2, the power supply circuit comprises a power supply control circuit, a voltage boosting circuit and a voltage reducing circuit which are sequentially connected, the input end of the power supply control circuit is connected with the lithium battery, the microwave human body sensing circuit is connected with the output end of the voltage boosting circuit, and the control circuit is connected with the output end of the voltage reducing circuit.
The power supply control circuit is used for controlling whether the booster circuit enters a working state, and after the power supply control circuit is connected, the booster circuit is connected with the lithium battery and used for boosting the voltage of the lithium battery and providing the boosted voltage for the microwave human body induction circuit and the voltage reduction circuit.
The voltage reducing circuit is used for providing stable voltage for the control circuit after reducing the voltage after the voltage is boosted.
After the voltage of the lithium battery passes through the booster circuit, the stability of the voltage is improved, the jitter is reduced, and further, the voltage is more stable through the step-down circuit, so that the control circuit cannot interfere due to the jitter of the power supply voltage, the accuracy of detection is affected, and the accurate detection is realized.
The microwave human body induction circuit transmits radio frequency signals, receives the reflected radio frequency signals, detects whether human body activities exist in a certain range according to the difference between the transmitted radio frequency signals and the received radio frequency signals, transmits the detection result to the control circuit, and controls the output circuit to enter a working state according to the detection result.
The output circuit is used for switching on or switching off the illuminating lamp according to the control signal of the control circuit, and is used for illuminating when a human body approaches, and switching off the illuminating lamp when no human body approaches, so that energy is saved.
Detailed description of the preferred embodiments
As shown in fig. 3, the power control circuit includes a triode Q2 and a switch tube Q1, wherein a base electrode of the triode Q2 is connected with an output end SENS of the control circuit through a resistor R4, an emitter electrode of the triode is connected with a cathode of a lithium battery, a collector electrode of the triode is connected with a control end of the switch tube Q1 and one end of a resistor R3, the other end of the resistor R3 is connected with an input end of the switch tube Q1 and an anode of the lithium battery, and an output end of the switch tube Q1 is connected with a boost circuit.
The boost circuit comprises an inductor L1 and a three-terminal power supply circuit U2, one end of the inductor L1 is connected with the output of the power supply control circuit, the other end of the inductor L1 is connected with the input end of the three-terminal power supply circuit U2, the second end of the three-terminal power supply circuit U2 is connected with the cathode of the lithium battery, the output end of the three-terminal power supply circuit U2 is connected with filter capacitors C1 and C3 and a voltage reduction circuit, and the boost circuit is used for increasing the voltage of the lithium battery to 5V.
The step-down circuit is composed of a three-terminal voltage stabilizer U3, and the output end of the step-down circuit is connected with filter capacitors C4 and C5 and used for reducing the boosted 5V voltage to 3.3V voltage and providing the voltage for the control circuit.
Detailed description of the preferred embodiments
As shown in fig. 4, the microwave human body induction circuit comprises a high-frequency triode Q3, an antenna, a filter circuit 1 and a filter circuit 2, wherein the base electrode of the high-frequency triode Q3 is connected with the transmitting end of the antenna and one end of a resistor R7, the other end of the resistor R7 and the collector electrode of the high-frequency triode Q3 are connected with the output end of the booster circuit, namely, the positive electrode of a 5V power supply, the emitting electrode of the high-frequency triode Q3 is connected with the receiving end of the antenna, the receiving end of the antenna is connected with the filter circuit 2, and the output end of the filter circuit 2 is connected with the control circuit.
The high-frequency triode Q3 is arranged in an unstable state and is used for forming oscillation, and a radio-frequency signal is transmitted through an antenna transmitting end. The antenna receiving end receives the reflected radio frequency signals and the transmitted radio frequency signals, the reflected radio frequency signals and the transmitted radio frequency signals form superposition, and the superposition is transmitted to the control circuit after passing through the filter circuit 2.
The filter circuit 1 is connected with the output end of the boost circuit and is used for filtering the output of the boost circuit and comprises filter capacitors C6, C7, C8 and C9.
The filter circuit 2 includes a filter capacitor C11, resistors R12, R10, R9, and a capacitor C10. The capacitor C11 and the resistor R12 are connected in parallel with the antenna receiving end and are used for filtering signals of the antenna receiving end, the resistor R10 and the capacitor C10 form an integrating circuit and are connected with the antenna receiving end and are used for filtering signals of the antenna receiving end again. The resistor R9 is used for connection between the filter circuit 2 and the control circuit.
The filter circuits 1 and 2 share the radio frequency ground.
As shown in fig. 5, the output circuit includes switching transistors Q4 and Q5, and the control electrodes of the switching transistors Q4 and Q5 are connected to each other, the output ends thereof are connected to each other, and the input ends thereof are connected to each other, i.e., the current of the illumination lamp is increased, so as to drive the large-function solar lamp. The output ends of the switching tubes Q4 and Q5 are connected with the cathodes of the LED lamps, and the anodes of the LED lamps are connected with the anodes of the lithium batteries through the current limiting resistors RS1 and RS 2. The current limiting resistors RS1, RS2 are connected in parallel.
Detailed description of the preferred embodiments
As shown in fig. 6, the control circuit includes a control integrated circuit U1.
A high-power solar lamp control circuit based on microwave human body induction comprises the following steps:
s1, judging whether the daytime is carried out, if so, entering the next step, and if not, turning to S3;
s2, the control circuit controls the power supply circuit and the output circuit to be disconnected, and the microwave human body induction circuit disconnects the power supply and turns to S1;
s3, the control circuit controls the power circuit to be connected, and the microwave human body induction circuit is electrified to work;
s4, the control circuit detects an output signal of the microwave human body induction circuit, judges whether a human body moves within a certain range, if so, enters the next step, and if not, continues to detect;
s5, the control circuit controls the output circuit to be connected, and illumination is provided.
Specifically, in steps S2 and S3, the control circuit controls the on or off of the power supply circuit by controlling the on or off of the switching tube in the power supply control circuit.
The control circuit judges whether the solar battery is in daytime or not according to the sampled voltage of the solar battery. And in the daytime, the connection between the boost circuit and the lithium battery is disconnected, and in the daytime, the connection between the boost circuit and the lithium battery is connected.
The solar cell adopts a solar photovoltaic panel.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (6)
1. A high-power solar lamp control circuit based on microwave human body induction is characterized in that: the device comprises a control circuit, a power circuit, a microwave human body induction circuit, an output circuit, a solar battery and a lithium battery, wherein the control circuit is respectively connected with the power circuit, a radio frequency circuit and the output circuit and is used for controlling the power circuit and the output circuit and receiving detection signals output by the microwave human body induction circuit;
the power supply circuit comprises a power supply control circuit, a voltage boosting circuit and a voltage reducing circuit which are sequentially connected, and the input end of the power supply control circuit is connected with the output end of the lithium battery;
the microwave human body induction circuit is connected with the output end of the booster circuit, and the booster circuit is used for providing electric energy for the microwave human body induction circuit;
the control circuit is connected with the output end of the voltage reduction circuit and is used for providing electric energy for the control circuit;
the boost circuit comprises an inductor and a three-terminal power supply circuit, one end of the inductor is connected with the output of the power supply control circuit, the other end of the inductor is connected with the input end of the three-terminal power supply circuit, the second end of the three-terminal power supply circuit is connected with the cathode of the lithium battery, and the output end of the three-terminal power supply circuit is connected with the buck circuit.
2. The control circuit of claim 1, wherein: the power supply control circuit comprises a triode and a first switch tube, wherein the base electrode of the triode is connected with the first output end of the control circuit through a first resistor, the emitter electrode of the triode is connected with the cathode of the lithium battery, the collector electrode of the triode is connected with the control end of the first switch tube and one end of a second resistor, the second end of the second resistor is connected with the input end of the first switch tube and the anode of the lithium battery, and the output end of the first switch tube is connected with the boost circuit.
3. The control circuit of claim 1, wherein: the microwave human body induction circuit comprises a high-frequency triode, an antenna, a first filter circuit and a second filter circuit, wherein the base electrode of the high-frequency triode is connected with the emitting end of the antenna and one end of a third resistor, the other end of the third resistor and the collector electrode of the high-frequency triode are connected with the output end of a boost circuit, the emitting electrode of the high-frequency triode is connected with the receiving end of the antenna, the receiving end of the antenna is connected with the second filter circuit, the output end of the second filter circuit is connected with the control circuit, the filter circuit 1 is connected with the output end of the boost circuit and used for filtering the output of the boost circuit, and the first filter circuit and the second filter circuit share radio frequency ground.
4. The control circuit of claim 1, wherein: the output circuit comprises a second switching tube and a third switching tube and is used for driving the high-power solar lamp.
5. A high-power solar lamp control method based on microwave human body induction is characterized in that: use of a control circuit according to any of claims 1-4, comprising the steps of:
s1, judging whether the daytime is carried out, if so, entering the next step, and if not, turning to S3;
s2, the control circuit controls the power supply circuit and the output circuit to be disconnected, and the microwave human body induction circuit disconnects the power supply and turns to S1;
s3, the control circuit controls the power circuit to be connected, and the microwave human body induction circuit is electrified to work;
s4, the control circuit detects an output signal of the microwave human body induction circuit, judges whether a human body moves within a certain range, if so, enters the next step, and if not, continues to detect;
s5, the control circuit controls the output circuit to be connected, and illumination is provided.
6. The control method according to claim 5, characterized in that: the step S2 and the step S3 are realized by controlling the switching on or off of a switching tube in the power supply control circuit by the control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657935.XA CN110290620B (en) | 2019-07-20 | 2019-07-20 | High-power solar lamp control circuit and method based on microwave human body induction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657935.XA CN110290620B (en) | 2019-07-20 | 2019-07-20 | High-power solar lamp control circuit and method based on microwave human body induction |
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| CN110290620A CN110290620A (en) | 2019-09-27 |
| CN110290620B true CN110290620B (en) | 2024-02-20 |
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| CN201910657935.XA Active CN110290620B (en) | 2019-07-20 | 2019-07-20 | High-power solar lamp control circuit and method based on microwave human body induction |
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