CN111770603A - Lighting killing switching circuit based on microwave radar - Google Patents
Lighting killing switching circuit based on microwave radar Download PDFInfo
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- CN111770603A CN111770603A CN202010641401.0A CN202010641401A CN111770603A CN 111770603 A CN111770603 A CN 111770603A CN 202010641401 A CN202010641401 A CN 202010641401A CN 111770603 A CN111770603 A CN 111770603A
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- 238000001514 detection method Methods 0.000 claims abstract description 49
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 230000000087 stabilizing effect Effects 0.000 claims description 20
- 239000003990 capacitor Substances 0.000 claims description 17
- 238000005286 illumination Methods 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 241001465754 Metazoa Species 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 description 3
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000002070 germicidal effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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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
- H05B35/00—Electric light sources using a combination of different types of light generation
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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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/02—Details
- H05B41/04—Starting switches
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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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
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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
-
- 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]
- H05B45/30—Driver circuits
- H05B45/34—Voltage stabilisation; Maintaining constant voltage
-
- 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]
- H05B45/30—Driver circuits
- H05B45/345—Current stabilisation; Maintaining constant current
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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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
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- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The application relates to a microwave radar-based lighting killing switching circuit, which at least comprises a power supply circuit, a radar detection circuit, a switch switching circuit and an LED driving circuit; the LED driving circuit is respectively connected with the radar detection circuit and the switch switching circuit; the LED driving circuit comprises a first driving circuit connected with an illuminating lamp and a second driving circuit connected with a killing lamp, the switch switching circuit is connected with the first driving circuit, and the radar detection circuit is connected with the second driving circuit and the switch switching circuit; the LED driving circuit controls the switching of the illuminating lamp and the killing lamp through the radar detection circuit and the switch switching circuit. The beneficial effects are that: this application is through need not changing current wire connection mode, realizes manual control or automatic switch illumination/ultraviolet disinfection function, and possesses self-closing disinfection function when having personnel's activity.
Description
Technical Field
The application relates to the technical field of lighting, in particular to a lighting killing switching circuit based on a microwave radar.
Background
With the rapid development of LED technology, LED lighting fixtures have been widely used in various lighting applications. The existing lighting lamp has single function and only can play a role of lighting, and the common germicidal lamp can hurt the skin of a human body. Therefore, the existing illuminating lamp is transformed and upgraded to have the functions of illumination and sterilization, and the sterilization function is very necessary to be automatically turned off when people move. In the upgrading and transforming process, a plurality of electric wire lines cannot be changed, the invention can realize the manual control and switching of the lighting/ultraviolet disinfection function without changing the existing electric wire connection mode, and has the function of automatically closing the disinfection function when people move.
Disclosure of Invention
In order to solve the technical problems, the application provides a microwave radar-based lighting killing switching circuit, which at least comprises a power circuit, a radar detection circuit, a switch switching circuit and an LED driving circuit;
the power circuit and the switch switching circuit are connected with an alternating current input, and the power circuit is also connected with a radar detection circuit and an LED drive circuit; the LED driving circuit is respectively connected with the radar detection circuit and the switch switching circuit;
the LED driving circuit comprises a first driving circuit connected with an illuminating lamp and a second driving circuit connected with a killing lamp, the switch switching circuit is connected with the first driving circuit, and the radar detection circuit is connected with the second driving circuit and the switch switching circuit; the LED driving circuit controls the switching of the illuminating lamp and the killing lamp through the radar detection circuit and the switch switching circuit.
Optionally, the power supply circuit comprises a first power supply circuit, a second power supply circuit, a third power supply circuit, wherein,
the first power supply circuit comprises a transformer, a rectifier bridge and a first filter circuit, wherein the transformer, the rectifier bridge and the first filter circuit are connected with an alternating current input, and the output end of the first filter circuit is connected with the first drive circuit and the second drive circuit and outputs a first power supply;
the second power supply circuit comprises a first power supply chip connected with the first power supply circuit, a first connector and a second filter circuit connected between the first power supply chip and the first connector, and is connected with the third power supply circuit and outputs a second power supply;
the third power supply circuit comprises a second connector, a second power supply chip, a third power supply chip and a third filter circuit, wherein the second connector, the second power supply chip and the third power supply chip are connected with the second power supply circuit; the output end of the third filter circuit and the third power supply chip output a third power supply, and the third power supply chip outputs a fourth power supply.
Optionally, the first driving circuit includes a first driving chip and a first voltage stabilizing circuit, a power input end of the first driving chip is connected to the first power supply, the first driving chip is further provided with a first control end connected to the switch switching circuit, an illumination signal end connected to the illumination lamp, and the first voltage stabilizing circuit is connected between the illumination signal end and the illumination lamp.
Optionally, the second driving circuit includes a second driving chip and a second voltage stabilizing circuit, a power input end of the second driving chip is connected to the first power supply, the second driving chip is further provided with a second control end connected to the radar detection circuit, a disinfection signal end connected to the killing lamp, and the second voltage stabilizing circuit is connected between the disinfection signal end and the killing lamp.
Optionally, the first voltage stabilizing circuit and the second voltage stabilizing circuit each include at least a diode, an inductor, a capacitor, and a resistor connected to the illumination signal terminal or the disinfection signal terminal.
Optionally, the switch switching circuit includes a switch chip, a power input end of the switch chip is connected to the ac input, and a first switch end and a second switch end of the switch chip are respectively connected to the first control end and the second control end.
Optionally, the radar detection circuit includes a radar chip and a signal conversion circuit; a fourth power supply input end of the radar chip is connected with the fourth power supply; and the signal output end of the radar chip is connected with the signal conversion circuit, and radar signals are transmitted to the switch switching circuit and the second driving circuit through the signal conversion circuit.
Optionally, the signal conversion circuit includes a signal conversion chip and a first triode, the signal conversion chip is provided with a signal input end connected with a signal output end, the signal conversion chip is further provided with a level signal output end connected with a base of the first triode, and a collector of the first triode is connected with the switch switching circuit and the second driving circuit through a first connector and a second connector.
Optionally, a signal indication end of the signal conversion chip is connected with an indicator lamp, one end of the indicator lamp is connected with a third power supply, and the other end of the indicator lamp is further connected with a first capacitor and a first resistor.
Optionally, an energizing switch is further connected between the power circuit, the switch switching circuit and the ac input.
The utility model provides a switching circuit is killed in illumination based on microwave radar, its beneficial effect lies in: this application has set up switch switching circuit, radar detection circuitry, detects whether someone or other animals in detection range through radar detection circuitry, if not, switches the light into the lamp that kills through switch switching circuit with current light. This application is through need not changing current wire connection mode, realizes manual control or automatic switch illumination/ultraviolet disinfection function, and possesses self-closing disinfection function when having personnel's activity.
Drawings
Fig. 1 is a schematic structural diagram of a circuit according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a radar detection range and a disinfection lamp illumination range according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a first power circuit, a second power circuit, an LED driving circuit and a switch switching circuit according to an embodiment of the present disclosure.
Fig. 4 is a power supply schematic diagram of a third power supply circuit according to an embodiment of the present application.
Fig. 5 is a schematic diagram of a radar chip of a second power circuit according to an embodiment of the present disclosure.
Fig. 6 is a schematic diagram of a switching circuit of a first dimming unit according to an embodiment of the present disclosure.
Wherein, 100-power circuit, 200-radar detection circuit, 300-switch switching circuit, 400-LED drive circuit, 500-AC input, 600-power-on switch, 101-first filter circuit, 102-second filter circuit, 103-third filter circuit, 401-first voltage regulator circuit, 402-second voltage regulator circuit, LED 1-lighting lamp, UV1 killer lamp, U1-first drive chip, U2-second drive chip, U3-switch chip, U4-radar chip, U5-signal conversion chip, U6-first power chip, U7-second power chip, U8-third power chip, L1-transformer, BD1 rectifier bridge, CON 1-first connector, CON 2-second connector, Q1-first triode, c1-first capacitor, R1-first resistor, D1-indicator light, VCC 1-first power supply, VCC 2-second power supply, VCC 3-third power supply, VCC 4-fourth power supply.
Detailed Description
The following detailed description of the preferred embodiments of the present application, taken in conjunction with the accompanying drawings, will make the advantages and features of the present application more readily appreciated by those skilled in the art, and thus will more clearly define the scope of the invention.
In the embodiment shown in fig. 1-3, the present application provides a microwave radar-based lighting killing switching circuit, which at least comprises a power supply circuit 100, a radar detection circuit 200, a switch switching circuit 300, and an LED driving circuit 400;
the power supply circuit 100 and the switch switching circuit 300 are connected with the alternating current input 500, and the power supply circuit 100 is also connected with the radar detection circuit 200 and the LED drive circuit 400; the LED driving circuit 400 is connected to the radar detection circuit 200 and the switch switching circuit 300, respectively;
the LED driving circuit 400 comprises a first driving circuit connected with the illuminating lamp LED1 and a second driving circuit connected with the sterilizing lamp UV1, the switch switching circuit 300 is connected with the first driving circuit, and the radar detection circuit 200 is connected with the second driving circuit and the switch switching circuit 300; the LED driving circuit 400 controls the switching of the illumination lamp LED1 and the killer lamp UV1 through the radar detection circuit 200 and the switch switching circuit 300.
In the embodiment, the circuit supplies power to the radar detection circuit 200 and the LED driving circuit 400 through the power circuit 100; the switch switching circuit 300 is powered by the ac input 500; the switch switching circuit 300 receives the signal detected by the radar detection circuit 200, and switches and lights the illumination lamp LED1 and the killer lamp UV 1. This application has set up switch switching circuit 300, radar detection circuit 200, detects whether someone or other animals in detection range through radar detection circuit 200, if not, switches into killing lamp UV1 with present light LED1 through switch switching circuit 300 with light LED 1. This application is through need not changing current wire connection mode, realizes manual control or automatic switch illumination/ultraviolet disinfection function, and possesses self-closing disinfection function when having personnel's activity.
In some embodiments, referring to fig. 3-4, power supply circuit 100 includes a first power supply circuit, a second power supply circuit, and a third power supply circuit, wherein,
a first power supply circuit comprising a transformer connected to the ac input 500, a rectifier bridge, and a first filter circuit, the output of which is connected to the first and second drive circuits and outputs a first power VCC 1; in this embodiment, the two input ends of the transformer are respectively connected to the live wire and the zero wire of the alternating current, the output end of the transformer is connected to the input end of the rectifier bridge, and the rectifier bridge is connected to the first driving circuit and the second driving circuit through the first filter circuit and outputs the first power VCC1 to the first driving circuit and the second driving circuit. The first filter circuit comprises a capacitor, a resistor and an inductor which are connected to the output end of the rectifier bridge, and the first filter circuit carries out voltage stabilization and filtering on the output voltage through the capacitor, the resistor and the inductor and then outputs the voltage to the LED drive circuit 400, so that the voltages of the illuminating lamp LED1 and the sterilizing lamp UV1 are stabilized.
The second power supply circuit comprises a first power supply chip U6 connected with the first power supply circuit, a first connector CON1 and a second filter circuit connected between the first power supply chip U6 and the first connector CON1, and is connected with the third power supply circuit and outputs a second power supply VCC 2; in this embodiment, the input terminal of the first power chip U6 is connected to the first power supply, the output terminal of the first power chip U6 outputs the second power VCC2 through the second filter circuit, and the second power VCC2 is transmitted to the third power supply circuit through the first connector CON 1. The second filter circuit comprises a capacitor, a diode, an inductor and a resistor, wherein the capacitor, the diode, the inductor and the resistor are used for filtering and stabilizing voltage; and the voltage output by the first power supply chip U6 is filtered and regulated by a second filter circuit.
A third power supply circuit including a second connector CON2 connected to the second power supply circuit, a second power supply chip U7, a third power supply chip U8, and a third filter circuit connected between the second power supply chip U7 and the third power supply chip U8; the output terminal of the third filter circuit and the third power chip U8 output the third power VCC3, and the third power chip U8 outputs the fourth power VCC 4. In this embodiment, the input terminal of the second power chip U7 is connected to receive a second power VCC2 through a second connector CON2 and a first connector CON1, and the output terminal of the second power chip U7 is connected to the third power chip U8 through a third filter circuit; the second power chip U7 is used for stepping down, and outputs a third power VCC3 for supplying power to the signal conversion circuit by stepping down the second power VCC 2. The third power supply chip U8 is used for step-down, and the third power supply VCC3 is stepped down to output a fourth power supply VCC4 for supplying power to the radar chip U4. The third filter circuit comprises an inductor, a resistor, a capacitor and a voltage stabilizing diode, and the third filter circuit performs voltage stabilizing filtering on the power supply output by the second power supply chip U7 through the inductor, the resistor, the capacitor and the voltage stabilizing diode and then outputs the power supply. The model of the first power chip U6 may be selected from the must easy KP311x (x ═ a/0) series chip or the pin-to-pin series chip. The model of the second power chip U7 can be selected from SilikeSY 8120B1ABC or SM8102ABC, or a micro-alliance ME3110A series chip or a chip with pin-to-pin connection; the model of the third power supply chip U8 can be selected from chips of the micro alliance ME6216 series, ME6206 series, and tai HT7530 series or chips of pin pairs thereof.
In some embodiments, referring to fig. 3, the first driving circuit includes a first driving chip U1, a first voltage regulator circuit, a power input terminal of the first driving chip U1 is connected to a first power VCC1, the first driving chip U1 is further provided with a first control terminal U1_ ROV connected to the switch switching circuit 300, an illumination signal terminal connected to the illumination lamp LED1, and a first voltage regulator circuit connected between the illumination signal terminal and the illumination lamp LED 1. In the present embodiment, the first control terminal U1_ ROV of the first driving chip U1 is connected to the switch switching circuit 300, and by receiving a signal from the switch switching circuit 300, the lighting lamp LED1 is driven to be turned on or off; the first voltage stabilizing circuit at least comprises a diode, an inductor, a capacitor and a resistor which are connected to the illumination signal end or the disinfection signal end. The first voltage stabilizing circuit stabilizes the voltage of the power supply of the first driving circuit through the diode, the inductor, the capacitor and the resistor, so that the voltage of the illuminating lamp LED1 is stable, and the brightness is stable. Referring to fig. 3, the model of the first driving chip U1 can be selected from crystal transparency source BP2866xJ (x ═ a/B/C/D/F/G/S) series chips or a chip with pin to pin pairs.
In some embodiments, referring to fig. 3, the second driving circuit includes a second driving chip U2, a second voltage regulator circuit, a power input terminal of the second driving chip U2 is connected to the first power VCC1, the second driving chip U2 is further provided with a second control terminal U2_ ROV connected to the radar detection circuit 200, a disinfection signal terminal connected to the disinfection lamp UV1, and a second voltage regulator circuit connected between the disinfection signal terminal and the disinfection lamp UV 1. In this embodiment, the second control terminal U2_ ROV of the second driver chip U2 is connected to the radar detection circuit 200, and the second driver chip U2 turns on or off the killer lamp UV1 by receiving a signal from the radar detection circuit 200. The second voltage stabilizing circuit at least comprises a diode, an inductor, a capacitor and a resistor which are connected with the illumination signal end or the disinfection signal end. The second voltage stabilizing circuit is used for stabilizing the power supply of the second driving circuit through a diode, an inductor, a capacitor and a resistor, so that the voltage of the killing lamp UV1 is stable, and the brightness is stable. Referring to fig. 3, the model of the second driving chip U2 can be selected from crystal transparency source BP2866xJ (x ═ a/B/C/D/F/G/S) series chips or a chip with pin to pin pairs.
In some embodiments, referring to fig. 3, the switch switching circuit 300 includes a switch chip U3, a power input terminal of the switch chip U3 is connected to the ac input 500, and a first switch terminal U3_ IC1 and a second switch terminal U3_ IC2 of the switch chip U3 are connected to a first control terminal U1_ ROV and a second control terminal U2_ ROV, respectively. In the present embodiment, the power input terminal of the switch switching circuit 300 is connected to the ac input 500 for supplying power, and outputs a control signal to the first driving circuit through the first switch terminal U3_ IC1, and receives a signal from the radar detection circuit 200 through the second switch terminal U3_ IC 2. When the switch chip U3 does not receive the signal of the radar detection circuit 200, it outputs a corresponding signal to the first switch terminal U3_ IC1, so that the illumination lamp LED1 is normally on; after receiving the signal of the radar detection circuit 200, the switch chip U3 outputs a signal to the first driving circuit, turning off the illumination lamp LED 1. Referring to fig. 3, the model of the switch chip U3 can be selected as a chip of chip flying slush S4223x (x ═ R/T// MNC) series or a chip with pin to pin.
In some embodiments, referring to fig. 5-6, radar detection circuit 200 includes a radar chip U4, and a signal conversion circuit; the input end of a fourth power supply VCC4 of the radar chip U4 is connected with the fourth power supply VCC4, and the signal output end of the radar chip U4 is connected with the signal conversion circuit and transmits radar signals to the switch switching circuit 300 and the second driving circuit through the signal conversion circuit. In the present embodiment, whether a person or other animal enters the detection range is detected by the radar chip U4, and a detection signal is generated and sent to the signal conversion circuit. The signal conversion circuit comprises a signal conversion chip U5 and a first triode Q1, wherein the signal conversion chip U5 is provided with a signal input end AD connected with a signal output end, the signal conversion chip U5 is further provided with a level signal output end U5_ PC3 connected with the base of the first triode Q1, and the collector of the first triode Q1 is connected with the switch switching circuit 300 and the second driving circuit through a first connector CON1 and a second connector CON 2. When the radar chip U4 detects that there is human or animal in the detection scope, generate the detected signal to in exporting signal conversion chip U5, signal conversion chip U5 discerns and changes the signal into level signal, through exporting level signal, controls the break-make of first tripolar Q1 pipe, and then with signal transmission to switch switching circuit 300 and second drive circuit in. In this embodiment, when the radar chip U4 detects a human or animal, the signal conversion circuit outputs a high level to the first transistor Q1, the collector OUT of the first transistor Q1 is connected to the switch switching circuit 300 and the second driving circuit through the second connector CON2 and the first connector CON1, and signals of the second switch terminal U3_ IC2 of the switch switching circuit 300 and the second control terminal U2_ ROV of the second driving circuit are pulled low. The extinguishing lamp UV1 circuit of the connected second driving circuit is enabled, and meanwhile, the switch switching circuit 300 controls the illuminating lamp LED1 to be turned off. The signal indicating end of the signal conversion chip U5 is connected with an indicator lamp D1, one end of the indicator lamp D1 is connected with a third power supply VCC3, and the other end of the indicator lamp D1 is also connected with a first capacitor C1 and a first resistor R1. In the present embodiment, the state of the radar detection circuit 200 is observed by the indicator lamp D1; the first capacitor C1 and the first resistor R1 are used for voltage division and filtering. The radar chip U4 can be an XBR816 series chip of Fuaoxing company; the signal conversion chip U5 can be selected from EN8F156 series of Enruine corporation, EM802X series of Indus corporation, or a chip with pin-to-pin pairs.
In some embodiments, a power-on switch 600 is further connected between the power circuit 100, the switch switching circuit 300 and the ac input 500; in this embodiment, the AC input 500 may be an input voltage of 85-264V; the power supply circuit 100 and the switch switching circuit 300 are connected to the ac input 500 via the energizing switch 600.
In some embodiments, the present circuit includes a power supply circuit 100, a radar detection circuit 200, a switch switching circuit 300, an LED driving circuit 400, and an LED illumination lamp LED1 and a UVC/UVA germicidal lamp UV1 connected to the LED driving circuit 400. Wherein the AC input 500 voltage range is 85-264 Vac; the external switch can directly cut off the circuit to supply power, and the switch can be a conventional mechanical switch and also can be an intelligent electronic switch; the power supply circuit 100 respectively supplies power to the LED power supply drive and the microwave radar mobile monitoring circuit; the LED driving circuit 400 may be an isolated constant current switching power supply or a non-isolated constant current switching power supply, and respectively provides constant currents for the LED lighting lamp LED1 and the UVC & UVA killing lamp UV1, meanwhile, the first driving chip U1 of the first driving circuit and the second driving chip U2 of the second driving circuit provide an output enabling control port, the first driving chip U1 is connected with the switch switching circuit 300, and the second driving chip U2 is connected with the switch switching circuit 300 and the radar detection circuit 200, and is used for controlling the lighting lamp LED1 and the killing lamp UV1 to be turned on and turned off. The switch switching circuit 300 is further configured to identify a switch state and a switch count of an external switch, so as to control an enable output state of the LED power supply driver; when the radar detection circuit 200 mainly works at the enabling output of the UVC/UVA killing lamp UV1, the radar chip U4 uses a Doppler effect microwave radar, the frequency can be 2.4GHz, 3.6GHz, 3.9GHz, 5.8GHz, 9.85GHz, 10.525GHz, 24GHz and other frequency bands, signals fed back by a moving object are detected through Doppler frequency shift, and the signals are output to control the enabling of an LED driving power supply through the signal processing of the microwave radar. Through switch switching circuit 300 and radar detection merit circuit, through the radar detection sensing area in no activity personnel when ultraviolet killing lamp UV1 opens, delay a set time, open ultraviolet killing function after setting for 15 seconds in this embodiment to ultraviolet irradiation area no personnel activity when guaranteeing that ultraviolet killing lamp UV1 opens. In addition, the radar sensing area must be greater than or equal to the ultraviolet disinfection area, otherwise the protection of the moving personnel cannot be met. The microwave radar built-in MCU can adjust induction related parameters, such as: the induction range, the ultraviolet turn-off duration, the total ultraviolet turn-on duration, the induction sensitivity and other related parameters.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.
Claims (10)
1. A microwave radar-based lighting killing switching circuit is characterized by at least comprising a power supply circuit, a radar detection circuit, a switch switching circuit and an LED driving circuit;
the power circuit and the switch switching circuit are connected with an alternating current input, and the power circuit is also connected with a radar detection circuit and an LED drive circuit; the LED driving circuit is respectively connected with the radar detection circuit and the switch switching circuit;
the LED driving circuit comprises a first driving circuit connected with an illuminating lamp and a second driving circuit connected with a killing lamp, the switch switching circuit is connected with the first driving circuit, and the radar detection circuit is connected with the second driving circuit and the switch switching circuit; the LED driving circuit controls the switching of the illuminating lamp and the killing lamp through the radar detection circuit and the switch switching circuit.
2. A microwave radar-based lighting killing switch circuit according to claim 1, wherein the power supply circuit comprises a first power supply circuit, a second power supply circuit, and a third power supply circuit,
the first power supply circuit comprises a transformer, a rectifier bridge and a first filter circuit, wherein the transformer, the rectifier bridge and the first filter circuit are connected with an alternating current input, and the output end of the first filter circuit is connected with the first drive circuit and the second drive circuit and outputs a first power supply;
the second power supply circuit comprises a first power supply chip connected with the first power supply circuit, a first connector and a second filter circuit connected between the first power supply chip and the first connector, and is connected with the third power supply circuit and outputs a second power supply;
the third power supply circuit comprises a second connector, a second power supply chip, a third power supply chip and a third filter circuit, wherein the second connector, the second power supply chip and the third power supply chip are connected with the second power supply circuit; the output end of the third filter circuit and the third power supply chip output a third power supply, and the third power supply chip outputs a fourth power supply.
3. The microwave radar-based lighting killing and switching circuit according to claim 1, wherein the first driving circuit comprises a first driving chip and a first voltage stabilizing circuit, a power input end of the first driving chip is connected with the first power supply, the first driving chip is further provided with a first control end connected with the switch switching circuit and a lighting signal end connected with the lighting lamp, and the first voltage stabilizing circuit is connected between the lighting signal end and the lighting lamp.
4. A microwave radar-based lighting killing and switching circuit according to claim 3, wherein the second driving circuit comprises a second driving chip and a second voltage stabilizing circuit, the power input end of the second driving chip is connected to the first power supply, the second driving chip is further provided with a second control end connected to the radar detection circuit, a disinfection signal end connected to the killing lamp, and the second voltage stabilizing circuit is connected between the disinfection signal end and the killing lamp.
5. The microwave radar-based lighting killing switching circuit according to claim 4, wherein the first and second voltage stabilizing circuits each comprise at least a diode, an inductor, a capacitor, and a resistor connected to the lighting signal terminal or the disinfection signal terminal.
6. The microwave radar-based lighting killing switching circuit according to claim 4, wherein the switching circuit comprises a switching chip, a power input end of the switching chip is connected with the alternating current input, and a first switching end and a second switching end of the switching chip are respectively connected with the first control end and the second control end.
7. A microwave radar-based lighting killing switch circuit according to claim 2, wherein the radar detection circuit comprises a radar chip and a signal conversion circuit; a fourth power supply input end of the radar chip is connected with the fourth power supply; and the signal output end of the radar chip is connected with the signal conversion circuit, and radar signals are transmitted to the switch switching circuit and the second driving circuit through the signal conversion circuit.
8. The microwave radar-based lighting killing and switching circuit according to claim 7, wherein the signal conversion circuit comprises a signal conversion chip and a first triode, the signal conversion chip is provided with a signal input end connected with a signal output end, the signal conversion chip is further provided with a level signal output end connected with a base of the first triode, and a collector of the first triode is connected with the switch switching circuit and the second driving circuit through a first connector and a second connector.
9. The microwave radar-based lighting killing and switching circuit according to claim 8, wherein a signal indication end of the signal conversion chip is connected with an indicator lamp, one end of the indicator lamp is connected with a third power supply, and the other end of the indicator lamp is further connected with a first capacitor and a first resistor.
10. The microwave radar-based lighting killing and switching circuit as claimed in claim 1, wherein a power switch is further connected between the power circuit, the switch switching circuit and the ac input.
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| CN202010641401.0A CN111770603A (en) | 2020-07-06 | 2020-07-06 | Lighting killing switching circuit based on microwave radar |
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| CN202010641401.0A CN111770603A (en) | 2020-07-06 | 2020-07-06 | Lighting killing switching circuit based on microwave radar |
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| CN111330033A (en) * | 2020-03-30 | 2020-06-26 | 袁家良 | Disinfection and sterilization method based on illumination technology |
| CN212486835U (en) * | 2020-07-06 | 2021-02-05 | 惠州市蓝微电子有限公司 | Lighting killing switching circuit based on microwave radar |
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| CN108934107A (en) * | 2018-05-08 | 2018-12-04 | 佛山科学技术学院 | A kind of intelligent lamp of ultraviolet light antivirus |
| KR101924119B1 (en) * | 2018-05-16 | 2018-11-30 | 루멘전광(주) | Power supplying apparatus for led lighting apparatus with sterilizing function |
| CN111330033A (en) * | 2020-03-30 | 2020-06-26 | 袁家良 | Disinfection and sterilization method based on illumination technology |
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