CN109526111B - Power carrier wave three-primary-color multi-color-temperature LED street lamp control system - Google Patents
Power carrier wave three-primary-color multi-color-temperature LED street lamp control system Download PDFInfo
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- CN109526111B CN109526111B CN201811614137.0A CN201811614137A CN109526111B CN 109526111 B CN109526111 B CN 109526111B CN 201811614137 A CN201811614137 A CN 201811614137A CN 109526111 B CN109526111 B CN 109526111B
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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]
- H05B45/20—Controlling the colour 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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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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- 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
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Abstract
The invention provides a power carrier three-primary-color multi-color-temperature LED street lamp control system which comprises an LED driving circuit, a main controller, an environment detection unit, a first modem, a first power signal coupling circuit, a second power signal coupling circuit, a power signal receiving circuit, a second modem, a remote monitoring server and a touch interactive interface, wherein the main controller is connected with the LED driving circuit; the LED driving circuit comprises a surge protection circuit, a rectifying circuit, a preceding stage power supply circuit, a tricolor LED lamp, an LED control circuit, a first voltage stabilizing circuit and a second voltage stabilizing circuit; the environment detection unit comprises a traffic flow sensor, an air particulate matter sensor, a temperature and humidity sensor, a brightness sensor, a rainwater sensor and an environment processing circuit; the intelligent LED street lamp has the advantages that the intelligent LED street lamp can adapt to different traffic conditions, the energy consumption can be effectively saved, more importantly, the data of the LED street lamp can be received in real time, the working state of the LED street lamp is judged, and the fault of the LED street lamp can be found in time and can be processed in time.
Description
Technical Field
The invention relates to the field of intelligent illumination, in particular to a power carrier three-primary-color multi-color-temperature LED street lamp control system.
Background
With the development of the LED technology, the LED technology is also widely used for lighting, such as LED street lamps, LED table lamps, etc., because the LEDs have the advantages of strong shock resistance, small heat productivity, low energy consumption, long service life, etc., the LEDs are widely used for street lamp lighting, and the energy consumption is reduced for urban lighting, and the following problems exist in the existing urban LED street lamps: the driving control circuit of the existing LED street lamp has poor stability, so that the service life of the LED lamp is far short of the rated service life of the LED lamp, on the other hand, the existing LED street lamp usually adopts a fixed color temperature and brightness for illumination, for example, yellow light illumination is adopted, the brightness of the street lamp is always the same brightness, the color temperature is single, the traffic requirement cannot be met, traffic accidents often occur due to illumination, energy is wasted, the third aspect is that in the prior art, the supervision of the LED street lamp is in a traditional stage, the LED street lamp is controlled to be turned on and off manually in a unified way, the real-time working condition of each LED street lamp cannot be known in real time, and after faults occur, the real-time working condition cannot be found in time.
Therefore, in order to solve the above technical problems, it is necessary to provide a new solution.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a power carrier three-primary-color multi-color temperature LED street lamp control system, which on one hand can provide stable direct current for an LED array in an LED street lamp to ensure that the LED street lamp can operate continuously and stably, on the other hand, can detect the current environmental condition in real time, and can adaptively adjust the illumination brightness and color temperature according to the detected environmental parameters, so as to adapt to different traffic conditions, and effectively save energy consumption, and more importantly, can receive data of the LED street lamp in real time, determine the operating state of the LED street lamp, and can timely find and process a fault of the LED street lamp.
The invention provides a power carrier three-primary-color multi-color-temperature LED street lamp control system which comprises an LED driving circuit, a main controller, an environment detection unit, a first modem, a first power signal coupling circuit, a second power signal coupling circuit, a power signal receiving circuit, a second modem, a remote monitoring server and a touch interactive interface, wherein the main controller is connected with the LED driving circuit;
the main controller is connected with the LED driving circuit, the main controller is in communication connection with the environment detection unit, the main controller is in communication connection with a first modem, the first modem is connected with a first power signal coupling circuit, the first power signal coupling circuit is in coupling connection with a power line, a second power signal coupling circuit is in coupling connection with the power line, the second power signal coupling circuit is connected with a second modem, the second modem is in communication connection with a remote monitoring server, the remote monitoring server is in communication connection with a touch interaction interface, and the first power coupling circuit and the second power signal coupling circuit are used for loading carrier signals on the power line or receiving the carrier signals from the power line;
the LED driving circuit comprises a surge protection circuit, a rectifying circuit, a preceding stage power supply circuit, a tricolor LED lamp, an LED control circuit, a first voltage stabilizing circuit and a second voltage stabilizing circuit;
the input end of the surge protection circuit is connected with a mains supply, the output end of the surge protection circuit is connected with the input end of the rectification circuit, the output end of the rectification circuit is connected with the input end of the preceding power supply circuit, the output end of the preceding power supply circuit is respectively connected with the input ends of the first voltage stabilizing circuit and the second voltage stabilizing circuit, the first voltage stabilizing circuit outputs 5V direct current to supply power to the master controller, the LED control circuit and the preceding power supply circuit, the output end of the second voltage stabilizing circuit outputs 9V direct current VCC1 to supply power to the LED control circuit, the control end of the LED control circuit is connected with a master control electrical appliance, and the control end of the preceding power supply circuit is connected with the;
the environment detection unit comprises a traffic flow sensor, an air particulate matter sensor, a temperature and humidity sensor, a brightness sensor, a rainwater sensor and an environment processing circuit;
the output and the environment processing circuit of traffic flow sensor, air particulate matter sensor, luminance sensor, temperature and humidity sensor and rainwater sensor are connected, environment processing circuit and master controller communication connection, traffic flow sensor, air particulate matter sensor, luminance sensor, temperature and humidity sensor and rainwater sensor are supplied power by first voltage stabilizing circuit, the environment processing circuit is supplied power by first voltage stabilizing circuit.
Further, the three-primary-color LED lamp comprises a red LED array, a yellow LED array and a white LED array, the three LED control circuits are of the same structure, and control the red LED array, the yellow LED array and the white LED array to emit light and brightness respectively;
the LED control circuit comprises a resistor R15, a resistor R16, a digital potentiometer RT2, a triode Q4, a triode Q5, a diode D1, a silicon controlled rectifier SCR1, a resistor R13, a resistor R26, a resistor R27, a resistor R28, an operational amplifier U5, an operational amplifier U6 and an operational amplifier U7;
one end of the resistor R15 is connected with a 5V direct current power supply, the other end of the resistor R15 is connected with the collector of the triode Q4, the emitter of the triode Q4 is connected with the control electrode of the silicon controlled SCR1, the base electrode of the triode Q4 is connected with the resistor R16, the other end of the resistor R16 is connected with the main controller as the first control end CON1 of the LED control circuit, the anode of the SCR1 is connected with the output end of a digital potentiometer RT2, the input end of the digital potentiometer RT2 is connected with the output end of an operational amplifier U5, the control end of the digital potentiometer RT2 is connected with a master controller, the negative electrode of the SCR1 is connected with the input end of the LED array of the tricolor LED lamp, the positive electrode of the controlled silicon SCR1 is also connected with the collector of a triode Q5, the emitter of the triode Q5 is grounded, the base of the triode Q5 is connected with the negative electrode of a diode D1 through a resistor R13, and the positive electrode of a diode D1 is connected with a master controller as a second control end CON2 of the LED control circuit;
the in-phase end of the operational amplifier U5 is connected to a power supply VCC1 through a resistor R26, the in-phase end of the operational amplifier U7 is connected to a common connection point between a digital potentiometer RT2 and a silicon controlled rectifier SCR1, the output end of the operational amplifier U7 is connected to the inverting end of the operational amplifier U6 through a resistor R27, the inverting end of the operational amplifier U7 is directly connected to the output end of the operational amplifier U7, the inverting end of the operational amplifier U6 is connected to the output end of the operational amplifier U6 through a resistor R28 and a capacitor C5 in parallel, the output end of the operational amplifier U6 is connected to the inverting end of the operational amplifier U5, and the in-phase end of the operational amplifier U6 is connected to the output end of the operational amplifier U5.
Further, the preceding stage power supply circuit comprises a resistor R1, an operational amplifier U1, a resistor R3, a triode Q1, a resistor R5, a controllable precision voltage-stabilizing source U2, a resistor R10, a capacitor C1, a digital potentiometer RT1, a diode D3, a capacitor C2 and a voltage-stabilizing tube DW 1;
one end of the resistor R1 is used as an input end of a preceding stage power supply circuit and is connected with an output end of the rectifying circuit, the other end of the resistor R1 is connected with a non-inverting end of the operational amplifier U1, an inverting end of the operational amplifier U1 is directly connected with an output end of the operational amplifier U1 to form a voltage follower, an output end of the operational amplifier U1 is connected with a collector of a triode Q1 through a resistor R3, an emitter of the triode Q1 is connected with an anode of a diode D3, a cathode of the diode D3 is grounded through a capacitor C2, a cathode of the diode D3 is connected with a cathode of a voltage regulator DW1, an anode of the voltage regulator DW1 is grounded, a common connection point between the triode Q1 and a voltage regulator DW 9 is used as an output end of the preceding stage power supply circuit, a collector of the triode Q1 is connected with a base of a triode Q1 through a resistor R5, a base of the triode Q1 is connected with a cathode of a controllable precision voltage regulator U2, an anode of the controllable precision voltage regulator U2, the output end of the digital potentiometer RT1 is grounded through a resistor R10, a common connection point between the digital potentiometer RT1 and the resistor R10 is connected with the reference pole of a controllable precision voltage-stabilizing source U2, and the emitter of the triode Q1 is connected with the reference pole of the controllable precision voltage-stabilizing source U2 through a capacitor C1.
Further, the preceding-stage power supply circuit further comprises a standby circuit, wherein the standby circuit comprises a resistor R2, a resistor R4, a resistor R6, a resistor R8, a resistor R7, a resistor R9, a resistor R11, a resistor R14, a resistor R17, a resistor R18, a resistor R19, a controllable precision voltage-stabilizing source U3, an operational amplifier U4, an optocoupler G1, a diode D2, a resistor R20, a triode Q6, a triode Q7, a resistor R21, a resistor R22, a normally-closed relay, a standby lithium battery, a triode Q3 and a MOS transistor Q2;
the resistance values of the resistor R7 and the resistor R9 are equal, and the resistance value of the resistor R12 is smaller than one half of the resistance value of the resistor R7;
one end of the resistor R2 is connected with the negative electrode of the diode D3, the other end of the resistor R2 is grounded through a resistor R4, a common connection point between the resistor R2 and the resistor R4 is connected with the inverting terminal of the operational amplifier U4 through a resistor R7, one end of the resistor R18 is connected with the inverting terminal of the operational amplifier U4, the other end of the resistor R18 is connected with the spare lithium battery Vbat, the negative electrode of the controllable precise voltage-stabilizing source U3 is connected with the inverting terminal of the operational amplifier U4, the positive electrode of the controllable precise voltage-stabilizing source U3 is grounded, the reference electrode of the controllable precise voltage-stabilizing source U3 is connected with the spare lithium battery Vbat through a resistor R19, the output end of the operational amplifier U4 is connected with the positive electrode of the light-emitting diode of the optical coupler G1 through a resistor R14, the negative electrode of the light-emitting diode of the optical coupler G1 is grounded, the collector of the optical coupler G1 is connected with a 5V power supply, the emitter of the phototransistor 1 is grounded, the emitter of the optical coupler 1 is connected, the emitter of the transistor Q3 is grounded through a resistor R12;
one end of a resistor R6 is connected to the collector of a triode Q1, the other end of a resistor R6 is connected with the drain of a MOS transistor Q2, the source of the MOS transistor Q2 is connected to the common connection point between a capacitor C2 and the emitter of the triode Q1 through a resistor R9, one end of the resistor R7 is connected to the gate of a MOS transistor Q2, the other end of the resistor R7 is connected to the common connection point between a capacitor C2 and the emitter of the triode Q1, the gate of the MOS transistor Q2 is grounded through a resistor R8, the gate of the MOS transistor Q2 is grounded through a capacitor C3, the common connection point A between the gate of the MOS transistor and the resistor R8 is connected with the collector of the triode Q3, wherein the MOS transistor Q2 is a PMOS transistor;
the anode of the diode D2 is connected to the emitter of the phototriode of the optocoupler G1, the cathode of the diode D2 is connected to the base of the triode Q6 through the resistor R20, the emitter of the triode Q6 is grounded, and the collector of the triode Q6 is connected to the detection terminal CON3 of the master controller;
the base electrode of the triode Q7 is connected to a common connection point between the resistor R2 and the resistor R4 through the resistor R22, the collector electrode of the triode Q7 is connected with 5V direct current, the emitter electrode of the triode Q7 is connected with the coil J1 of the normally closed relay in series through the resistor R21 and then grounded, one end of the normally closed switch J-K1 of the normally closed relay is connected with the standby lithium battery Vbat, and the other end of the normally closed switch J-K1 of the normally closed relay is connected with the input end of.
Further, the preceding stage power supply circuit further comprises a power supply detection circuit;
the power supply detection circuit comprises a resistor R23, a resistor R24, a resistor R25, a triode Q8, a capacitor C4 and a voltage-stabilizing tube DW 2;
one end of the resistor R23 is connected to the output end of the operational amplifier U1, the other end of the resistor R3632 is grounded through a resistor R24, a common connection point between the resistor R23 and the resistor R24 is connected to the base of the triode Q8 through a resistor R25, the base of the triode Q8 is grounded through a capacitor C4, the base of the triode Q8 is further connected with the negative electrode of a voltage regulator tube DW2, the positive electrode of the voltage regulator tube DW2 is grounded, the emitter of the triode Q8 is grounded, and the collector of the triode Q8 is connected with a signal terminal CON4 of the master controller.
Furthermore, the main controller and the environment processing circuit are single-chip microcomputers.
Further, the rectifying circuit is a full-bridge rectifying circuit composed of diodes.
The invention has the beneficial effects that: according to the invention, on one hand, stable direct current can be provided for the LED array in the LED street lamp, so that the LED street lamp can continuously and stably operate, on the other hand, the current environment condition can be detected in real time, the illumination brightness and the color temperature can be adaptively adjusted according to the detected environment parameters, different traffic conditions can be adapted, the energy consumption can be effectively saved, more importantly, the data of the LED street lamp can be received in real time, the working state of the LED street lamp can be judged, and the fault of the LED street lamp can be timely found and can be timely processed.
Drawings
The invention is further described below with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of a front stage power supply circuit of the present invention.
FIG. 3 is a schematic diagram of an LED control circuit of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings of the specification:
the invention provides a power carrier three-primary-color multi-color-temperature LED street lamp control system which comprises an LED driving circuit, a main controller, an environment detection unit, a first modem, a first power signal coupling circuit, a second power signal coupling circuit, a power signal receiving circuit, a second modem, a remote monitoring server and a touch interactive interface, wherein the main controller is connected with the LED driving circuit;
the main controller is connected with the LED driving circuit, the main controller is in communication connection with the environment detection unit, the main controller is in communication connection with a first modem, the first modem is connected with a first power signal coupling circuit, the first power signal coupling circuit is in coupling connection with a power line, a second power signal coupling circuit is in coupling connection with the power line, the second power signal coupling circuit is connected with a second modem, the second modem is in communication connection with a remote monitoring server, the remote monitoring server is in communication connection with a touch interaction interface, and the first power coupling circuit and the second power signal coupling circuit are used for loading carrier signals on the power line or receiving the carrier signals from the power line;
the LED driving circuit comprises a surge protection circuit, a rectifying circuit, a preceding stage power supply circuit, a tricolor LED lamp, an LED control circuit, a first voltage stabilizing circuit and a second voltage stabilizing circuit;
the input end of the surge protection circuit is connected with a mains supply, the output end of the surge protection circuit is connected with the input end of the rectification circuit, the output end of the rectification circuit is connected with the input end of the preceding power supply circuit, the output end of the preceding power supply circuit is respectively connected with the input ends of the first voltage stabilizing circuit and the second voltage stabilizing circuit, the first voltage stabilizing circuit outputs 5V direct current to supply power to the master controller, the LED control circuit and the preceding power supply circuit, the output end of the second voltage stabilizing circuit outputs 9V direct current VCC1 to supply power to the LED control circuit, the control end of the LED control circuit is connected with a master control electrical appliance, and the control end of the preceding power supply circuit is connected with the;
the environment detection unit comprises a traffic flow sensor, an air particulate matter sensor, a temperature and humidity sensor, a brightness sensor, a rainwater sensor and an environment processing circuit;
the output ends of the traffic flow sensor, the air particulate matter sensor, the brightness sensor, the temperature and humidity sensor and the rainwater sensor are connected with an environment processing circuit, the environment processing circuit is in communication connection with the main controller, the traffic flow sensor, the air particulate matter sensor, the brightness sensor, the temperature and humidity sensor and the rainwater sensor are powered by a first voltage stabilizing circuit, the environment processing circuit is powered by the first voltage stabilizing circuit, the traffic flow sensor, the air particulate matter sensor, the brightness sensor, the temperature and humidity sensor and the rainwater sensor are powered by the first voltage stabilizing circuit, and the environment processing circuit is powered by the first voltage stabilizing circuit; through the structure, the environment detection unit detects the environment and the traffic volume of the street lamp and judges the current environment condition, such as: the air particulate matter sensor (such as sensors of PM2.5, PM1O and the like) detects the concentration of particulate matter, whether fog is generated at the current road section is judged through the temperature and humidity sensor, the environment processing circuit judges that the concentration of the particulate matter reaches a set value and the output value of the temperature and humidity sensor judges that fog is generated at the current time, the environment processing circuit transmits a processing result to the main controller, the main controller controls the LED street lamp to work in a yellow light state, and the traffic safety is ensured by utilizing the characteristics of good diffraction, high scattering intensity and strong penetrating power of the yellow light, on the other hand, the traffic flow sensor judges the magnitude of the current traffic flow, the main controller controls the magnitude of working current of each LED array in the LED street lamp according to the magnitude of the traffic flow, so as to carry out brightness adjustment, the brightness sensor is used for detecting the brightness state of the current environment, and comprehensively, wherein, luminance sensor is two at least, and one is used for detecting the luminance of ambient light, and another detects the luminance of LED lamp self, and the master controller still uploads the real-time status information of each sensor to the remote monitoring server, and the staff that is in the remote monitoring center can judge the trouble of current LED lamp because what arouses according to real-time detection's parameter, for example: when the main controller sets the digital potentiometer RT2 at a certain value, the current working current is obtained through calculation, the theoretical brightness state of the current LED lamp is judged according to the current working current, the detected brightness of the LED lamp output by the real-time brightness sensor is obtained and compared, if the difference value is smaller than the threshold range, the LED lamp is normal, if the difference value between the two is larger than the threshold range, the LED lamp breaks down, the main controller also pre-stores corresponding position information, and the position information of the main controller is sent together when the information is uploaded every time, so that a monitoring center can know the specific geographical position of the current street lamp in time in a packaging mode; the LED street lamp structure can also acquire real-time traffic flow information and provide reference for the layout of the street lamp, and by the structure, on one hand, stable direct current can be provided for an LED array in the LED street lamp to ensure that the LED street lamp can continuously and stably run, on the other hand, the current environmental condition can be detected in real time, the illumination brightness and the color temperature can be adaptively adjusted according to the detected environmental parameters, different traffic conditions can be adapted, energy consumption can be effectively saved, more importantly, the data of the LED street lamp can be received in real time, the working state of the LED street lamp can be judged, and the fault of the LED street lamp can be timely found and timely processed; the working personnel can input a control instruction through the touch interactive interface, and the control instruction is transmitted to each LED street lamp by the remote monitoring server, and the touch interactive interface adopts the existing touch display; the main controller and the environment processing circuit are both provided with the existing single chip microcomputer, such as an AVR single chip microcomputer, an 89S51 single chip microcomputer and the like, the rectifying circuit is provided with a full-bridge rectifying circuit formed by the existing diodes, the stability is good, the structure is simple, the surge protection circuit can be provided with the existing protection circuit and can be purchased directly, the first power signal coupling circuit, the second power signal coupling circuit, the first modem and the second modem are all provided with the prior art, and the structure and the principle are not repeated herein.
In this embodiment, the three-primary-color LED lamp includes a red LED array, a yellow LED array, and a white LED array, the three LED control circuits have three and the same structure, and the three LED control circuits respectively control the red LED array, the yellow LED array, and the white LED array to emit light and to have brightness; the three basic colors in the invention refer to three basic colors of red, yellow and white, but not three primary colors of red, green and white in the traditional sense, and the three basic colors can ensure that the light ray reduction degree of the street lamp is higher, thereby being beneficial to illumination;
the LED control circuit comprises a resistor R15, a resistor R16, a digital potentiometer RT2, a triode Q4, a triode Q5, a diode D1, a silicon controlled rectifier SCR1, a resistor R13, a resistor R26, a resistor R27, a resistor R28, an operational amplifier U5, an operational amplifier U6 and an operational amplifier U7;
one end of the resistor R15 is connected with a 5V direct current power supply, the other end of the resistor R15 is connected with the collector of the triode Q4, the emitter of the triode Q4 is connected with the control electrode of the silicon controlled SCR1, the base electrode of the triode Q4 is connected with the resistor R16, the other end of the resistor R16 is connected with the main controller as the first control end CON1 of the LED control circuit, the anode of the SCR1 is connected with the output end of a digital potentiometer RT2, the input end of the digital potentiometer RT2 is connected with the output end of an operational amplifier U5, the control end of the digital potentiometer RT2 is connected with a master controller, the negative electrode of the SCR1 is connected with the input end of the LED array of the tricolor LED lamp, the positive electrode of the controlled silicon SCR1 is also connected with the collector of a triode Q5, the emitter of the triode Q5 is grounded, the base of the triode Q5 is connected with the negative electrode of a diode D1 through a resistor R13, and the positive electrode of a diode D1 is connected with a master controller as a second control end CON2 of the LED control circuit;
the in-phase end of the operational amplifier U5 is connected to a power supply VCC1 through a resistor R26, the in-phase end of the operational amplifier U7 is connected to a common connection point between a digital potentiometer RT2 and a silicon controlled rectifier SCR1, the output end of the operational amplifier U7 is connected to the inverting end of the operational amplifier U6 through a resistor R27, the inverting end of the operational amplifier U7 is directly connected to the output end of the operational amplifier U7, the inverting end of the operational amplifier U6 is connected to the output end of the operational amplifier U6 after being connected in parallel through a resistor R28 and a capacitor C5, the output end of the operational amplifier U6 is connected with the inverting end of the operational amplifier U5, the in-phase end of the operational amplifier U6 is connected with the output end of the operational amplifier U5, wherein, the operational amplifier U5, the digital potentiometer RT2, the operational amplifier U6 and the operational amplifier U7 form a constant current source circuit, and by controlling the size of the RT2, therefore, the size of the power supply current output to the LED array is changed, the illumination brightness is changed, and the operational amplifier U7 and the operational amplifier U6 are used for feedback control, so that the output current of the whole constant current source is more stable and reliable.
Specifically, the pre-stage power supply circuit comprises a resistor R1, an operational amplifier U1, a resistor R3, a triode Q1, a resistor R5, a controllable precision voltage-stabilizing source U2, a resistor R10, a capacitor C1, a digital potentiometer RT1, a diode D3, a capacitor C2 and a voltage-stabilizing tube DW 1;
one end of the resistor R1 is used as an input end of a preceding stage power supply circuit and is connected with an output end of the rectifying circuit, the other end of the resistor R1 is connected with a non-inverting end of the operational amplifier U1, an inverting end of the operational amplifier U1 is directly connected with an output end of the operational amplifier U1 to form a voltage follower, an output end of the operational amplifier U1 is connected with a collector of a triode Q1 through a resistor R3, an emitter of the triode Q1 is connected with an anode of a diode D3, a cathode of the diode D3 is grounded through a capacitor C2, a cathode of the diode D3 is connected with a cathode of a voltage regulator DW1, an anode of the voltage regulator DW1 is grounded, a common connection point between the triode Q1 and a voltage regulator DW 9 is used as an output end of the preceding stage power supply circuit, a collector of the triode Q1 is connected with a base of a triode Q1 through a resistor R5, a base of the triode Q1 is connected with a cathode of a controllable precision voltage regulator U2, an anode of the controllable precision voltage regulator U2, the output end of the digital potentiometer RT1 is grounded through a resistor R10, a common connection point between the digital potentiometer RT1 and the resistor R10 is connected with the reference pole of a controllable precision voltage-stabilizing source U2, and the emitter of the triode Q1 is connected with the reference pole of the controllable precision voltage-stabilizing source U2 through a capacitor C1.
Further, the preceding-stage power supply circuit further comprises a standby circuit, wherein the standby circuit comprises a resistor R2, a resistor R4, a resistor R6, a resistor R8, a resistor R7, a resistor R9, a resistor R11, a resistor R14, a resistor R17, a resistor R18, a resistor R19, a controllable precision voltage-stabilizing source U3, an operational amplifier U4, an optocoupler G1, a diode D2, a resistor R20, a triode Q6, a triode Q7, a resistor R21, a resistor R22, a normally-closed relay, a standby lithium battery, a triode Q3 and a MOS transistor Q2;
the resistance values of the resistor R7 and the resistor R9 are equal, and the resistance value of the resistor R12 is smaller than one half of the resistance value of the resistor R7;
one end of the resistor R2 is connected with the negative electrode of the diode D3, the other end of the resistor R2 is grounded through a resistor R4, a common connection point between the resistor R2 and the resistor R4 is connected with the inverting terminal of the operational amplifier U4 through a resistor R7, one end of the resistor R18 is connected with the inverting terminal of the operational amplifier U4, the other end of the resistor R18 is connected with the spare lithium battery Vbat, the negative electrode of the controllable precise voltage-stabilizing source U3 is connected with the inverting terminal of the operational amplifier U4, the positive electrode of the controllable precise voltage-stabilizing source U3 is grounded, the reference electrode of the controllable precise voltage-stabilizing source U3 is connected with the spare lithium battery Vbat through a resistor R19, the output end of the operational amplifier U4 is connected with the positive electrode of the light-emitting diode of the optical coupler G1 through a resistor R14, the negative electrode of the light-emitting diode of the optical coupler G1 is grounded, the collector of the optical coupler G1 is connected with a 5V power supply, the emitter of the phototransistor 1 is grounded, the emitter of the optical coupler 1 is connected, the emitter of the transistor Q3 is grounded through a resistor R12;
one end of a resistor R6 is connected to the collector of a triode Q1, the other end of a resistor R6 is connected with the drain of a MOS transistor Q2, the source of the MOS transistor Q2 is connected to the common connection point between a capacitor C2 and the emitter of the triode Q1 through a resistor R9, one end of the resistor R7 is connected to the gate of a MOS transistor Q2, the other end of the resistor R7 is connected to the common connection point between a capacitor C2 and the emitter of the triode Q1, the gate of the MOS transistor Q2 is grounded through a resistor R8, the gate of the MOS transistor Q2 is grounded through a capacitor C3, the common connection point A between the gate of the MOS transistor and the resistor R8 is connected with the collector of the triode Q3, wherein the MOS transistor Q2 is a PMOS transistor;
the anode of the diode D2 is connected to the emitter of the phototriode of the optocoupler G1, the cathode of the diode D2 is connected to the base of the triode Q6 through the resistor R20, the emitter of the triode Q6 is grounded, and the collector of the triode Q6 is connected to the detection terminal CON3 of the master controller;
the base electrode of the triode Q7 is connected with the common connection point between the resistor R2 and the resistor R4 through the resistor R22, the collector electrode of the triode Q7 is connected with 5V direct current, the emitter electrode of the triode Q7 is connected with the coil J1 of the normally closed relay in series through the resistor R21 and then is grounded, one end of the normally closed switch J-K1 of the normally closed relay is connected with the spare lithium battery Vbat, and the other end is connected with the input end of the first voltage stabilizing circuit, through the power supply with the structure, because of the function of the voltage follower formed by the operational amplifier U1, on one hand, the voltage stabilizing function is provided, on the other hand, the function of isolating the rear end circuit is provided, the rear end circuit is well protected, and because the triode Q1 has the function of voltage stabilizing at the front stage and is matched with the first voltage stabilizing circuit and the second voltage stabilizing circuit, stable working electricity can be provided, at this time, because the resistances of the resistor R9 and the resistor R7 are equal, the MOS transistor Q2 is turned off, the resistor R2 and the resistor R4 are used for sampling the output of the transistor Q1, the inverse comparator formed by the operational amplifier U4 is used for comparing the sampled value with the reference voltage provided by the controllable precision voltage regulator U3, when the sampled value is smaller than the reference voltage value, the operational amplifier U4 outputs a high level, the optocoupler G1 is turned on at this time, the transistor Q3 is turned on, so that the transistor Q3 is turned on, so that the gate voltage of the MOS transistor Q2 is pulled down, so that the MOS transistor Q2 is turned on, so that the standby circuit formed by the resistor R6, the drain and the source of the MOS transistor Q2, and the resistor R9 is directly powered on, and when the optocoupler G1 is turned on, the transistor Q6 is turned on, so that the potential of the terminal CON3 of the master controller is pulled down, and the master knows that the voltage regulator circuit formed by the transistor, when the voltage stabilizing circuit of the triode Q1 has continuous output, the triode Q7 is conducted, the normally closed switch J-K1 of the normally closed relay is disconnected due to power on of the normally closed relay, if the triode Q1 fails, the triode Q7 is cut off, the normally closed switch J-K1 of the normally closed relay is closed, the standby lithium battery Vbat supplies power to the first voltage stabilizing circuit, the power supply is only used for corresponding alarm use of the main controller, and working power utilization cannot be provided for the LED array; and the current of the standby lithium battery is prevented from flowing backwards to the resistor R2 to cause misjudgment, and the diode D4 is arranged at the rear end of the common connection point of the voltage-stabilizing tube DW1 and the diode D1.
In this embodiment, the preceding stage power supply circuit further includes a power supply detection circuit;
the power supply detection circuit comprises a resistor R23, a resistor R24, a resistor R25, a triode Q8, a capacitor C4 and a voltage-stabilizing tube DW 2;
one end of the resistor R23 is connected to the output end of the operational amplifier U1, the other end of the resistor R23 is grounded through a resistor R24, a common connection point between the resistor R23 and the resistor R24 is connected to the base electrode of the triode Q8 through a resistor R25, the base electrode of the triode Q8 is grounded through a capacitor C4, the base electrode of the triode Q8 is further connected with the negative electrode of a voltage regulator tube DW2, the positive electrode of the voltage regulator tube DW2 is grounded, the emitter electrode of the triode Q8 is grounded, the collector electrode of the triode Q8 is connected with a signal terminal CON4 of the master controller, through the structure, the input of a preceding stage power circuit can be detected, and the fault of the whole LED street lamp can be judged by combining the functions of the sampling resistors R2 and R4 and the brightness sensor, the terminal CON4 of the master controller is set to be at a high level, when the input is normal, the high level is pulled down by the triode Q8, if the terminal CON3 is kept at a high voltage level and the luminance sensor for detecting the luminance of the LED lamp has no output, it indicates that the LED array of the LED lamp is failed or the second voltage regulator circuit is failed at this time, and if the terminal CON4 is at a high level, it indicates that there is no input.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. The utility model provides a power line carrier tricolor polychrome temperature LED street lamp control system which characterized in that: the system comprises an LED driving circuit, a main controller, an environment detection unit, a first modem, a first power signal coupling circuit, a second power signal coupling circuit, a power signal receiving circuit, a second modem, a remote monitoring server and a touch interactive interface;
the main controller is connected with the LED driving circuit, the main controller is in communication connection with the environment detection unit, the main controller is in communication connection with a first modem, the first modem is connected with a first power signal coupling circuit, the first power signal coupling circuit is in coupling connection with a power line, a second power signal coupling circuit is in coupling connection with the power line, the second power signal coupling circuit is connected with a second modem, the second modem is in communication connection with a remote monitoring server, the remote monitoring server is in communication connection with a touch interaction interface, and the first power coupling circuit and the second power signal coupling circuit are used for loading carrier signals on the power line or receiving the carrier signals from the power line;
the LED driving circuit comprises a surge protection circuit, a rectifying circuit, a preceding stage power supply circuit, a tricolor LED lamp, an LED control circuit, a first voltage stabilizing circuit and a second voltage stabilizing circuit;
the input end of the surge protection circuit is connected with a mains supply, the output end of the surge protection circuit is connected with the input end of the rectification circuit, the output end of the rectification circuit is connected with the input end of the preceding power supply circuit, the output end of the preceding power supply circuit is respectively connected with the input ends of the first voltage stabilizing circuit and the second voltage stabilizing circuit, the first voltage stabilizing circuit outputs 5V direct current to supply power to the master controller, the LED control circuit and the preceding power supply circuit, the output end of the second voltage stabilizing circuit outputs 9V direct current VCC1 to supply power to the LED control circuit, the control end of the LED control circuit is connected with a master control electrical appliance, and the control end of the preceding power supply circuit is connected with the;
the environment detection unit comprises a traffic flow sensor, an air particulate matter sensor, a temperature and humidity sensor, a brightness sensor, a rainwater sensor and an environment processing circuit;
the output ends of the traffic flow sensor, the air particulate matter sensor, the brightness sensor, the temperature and humidity sensor and the rainwater sensor are connected with an environment processing circuit, the environment processing circuit is in communication connection with the main controller, the traffic flow sensor, the air particulate matter sensor, the brightness sensor, the temperature and humidity sensor and the rainwater sensor are powered by a first voltage stabilizing circuit, and the environment processing circuit is powered by the first voltage stabilizing circuit;
the three-primary-color LED lamp comprises a red LED array, a yellow LED array and a white LED array, the number of the LED control circuits is three, the structures of the LED control circuits are the same, and the three LED control circuits respectively control the red LED array, the yellow LED array and the white LED array to emit light and brightness;
the LED control circuit comprises a resistor R15, a resistor R16, a digital potentiometer RT2, a triode Q4, a triode Q5, a diode D1, a silicon controlled rectifier SCR1, a resistor R13, a resistor R26, a resistor R27, a resistor R28, an operational amplifier U5, an operational amplifier U6 and an operational amplifier U7;
one end of the resistor R15 is connected with a 5V direct current power supply, the other end of the resistor R15 is connected with the collector of the triode Q4, the emitter of the triode Q4 is connected with the control electrode of the silicon controlled SCR1, the base electrode of the triode Q4 is connected with the resistor R16, the other end of the resistor R16 is connected with the main controller as the first control end CON1 of the LED control circuit, the anode of the SCR1 is connected with the output end of a digital potentiometer RT2, the input end of the digital potentiometer RT2 is connected with the output end of an operational amplifier U5, the control end of the digital potentiometer RT2 is connected with a master controller, the negative electrode of the SCR1 is connected with the input end of the LED array of the tricolor LED lamp, the positive electrode of the controlled silicon SCR1 is also connected with the collector of a triode Q5, the emitter of the triode Q5 is grounded, the base of the triode Q5 is connected with the negative electrode of a diode D1 through a resistor R13, and the positive electrode of a diode D1 is connected with a master controller as a second control end CON2 of the LED control circuit;
the in-phase end of the operational amplifier U5 is connected to a power supply VCC1 through a resistor R26, the in-phase end of the operational amplifier U7 is connected to a common connection point between a digital potentiometer RT2 and a silicon controlled rectifier SCR1, the output end of the operational amplifier U7 is connected to the inverting end of the operational amplifier U6 through a resistor R27, the inverting end of the operational amplifier U7 is directly connected to the output end of the operational amplifier U7, the inverting end of the operational amplifier U6 is connected to the output end of the operational amplifier U6 through a resistor R28 and a capacitor C5 in parallel, the output end of the operational amplifier U6 is connected to the inverting end of the operational amplifier U5, and the in-phase end of the operational amplifier U6 is connected to the output end of the operational amplifier U5.
2. The power carrier three-primary-color multi-color-temperature LED street lamp control system according to claim 1, characterized in that: the pre-stage power supply circuit comprises a resistor R1, an operational amplifier U1, a resistor R3, a triode Q1, a resistor R5, a controllable precision voltage-stabilizing source U2, a resistor R10, a capacitor C1, a digital potentiometer RT1, a diode D3, a capacitor C2 and a voltage-stabilizing tube DW 1;
one end of the resistor R1 is used as an input end of a preceding stage power supply circuit and is connected with an output end of the rectifying circuit, the other end of the resistor R1 is connected with a non-inverting end of the operational amplifier U1, an inverting end of the operational amplifier U1 is directly connected with an output end of the operational amplifier U1 to form a voltage follower, an output end of the operational amplifier U1 is connected with a collector of a triode Q1 through a resistor R3, an emitter of the triode Q1 is connected with an anode of a diode D3, a cathode of the diode D3 is grounded through a capacitor C2, a cathode of the diode D3 is connected with a cathode of a voltage regulator DW1, an anode of the voltage regulator DW1 is grounded, a common connection point between the triode Q1 and a voltage regulator DW 9 is used as an output end of the preceding stage power supply circuit, a collector of the triode Q1 is connected with a base of a triode Q1 through a resistor R5, a base of the triode Q1 is connected with a cathode of a controllable precision voltage regulator U2, an anode of the controllable precision voltage regulator U2, the output end of the digital potentiometer RT1 is grounded through a resistor R10, a common connection point between the digital potentiometer RT1 and the resistor R10 is connected with the reference pole of a controllable precision voltage-stabilizing source U2, and the emitter of the triode Q1 is connected with the reference pole of the controllable precision voltage-stabilizing source U2 through a capacitor C1.
3. The power carrier three-primary-color multi-color-temperature LED street lamp control system according to claim 2, characterized in that: the pre-stage power supply circuit further comprises a standby circuit, wherein the standby circuit comprises a resistor R2, a resistor R4, a resistor R6, a resistor R8, a resistor R7, a resistor R9, a resistor R11, a resistor R14, a resistor R17, a resistor R18, a resistor R19, a controllable precision voltage-stabilizing source U3, an operational amplifier U4, an optocoupler G1, a diode D2, a resistor R20, a triode Q6, a triode Q7, a resistor R21, a resistor R22, a normally closed relay, a standby lithium battery, a triode Q3 and a MOS transistor Q2;
the resistance values of the resistor R7 and the resistor R9 are equal, and the resistance value of the resistor R12 is smaller than one half of the resistance value of the resistor R7;
one end of the resistor R2 is connected with the negative electrode of the diode D3, the other end of the resistor R2 is grounded through a resistor R4, a common connection point between the resistor R2 and the resistor R4 is connected with the inverting terminal of the operational amplifier U4 through a resistor R7, one end of the resistor R18 is connected with the inverting terminal of the operational amplifier U4, the other end of the resistor R18 is connected with the spare lithium battery Vbat, the negative electrode of the controllable precise voltage-stabilizing source U3 is connected with the inverting terminal of the operational amplifier U4, the positive electrode of the controllable precise voltage-stabilizing source U3 is grounded, the reference electrode of the controllable precise voltage-stabilizing source U3 is connected with the spare lithium battery Vbat through a resistor R19, the output end of the operational amplifier U4 is connected with the positive electrode of the light-emitting diode of the optical coupler G1 through a resistor R14, the negative electrode of the light-emitting diode of the optical coupler G1 is grounded, the collector of the optical coupler G1 is connected with a 5V power supply, the emitter of the phototransistor 1 is grounded, the emitter of the optical coupler 1 is connected, the emitter of the transistor Q3 is grounded through a resistor R12;
one end of a resistor R6 is connected to the collector of a triode Q1, the other end of a resistor R6 is connected with the drain of a MOS transistor Q2, the source of the MOS transistor Q2 is connected to the common connection point between a capacitor C2 and the emitter of the triode Q1 through a resistor R9, one end of the resistor R7 is connected to the gate of a MOS transistor Q2, the other end of the resistor R7 is connected to the common connection point between a capacitor C2 and the emitter of the triode Q1, the gate of the MOS transistor Q2 is grounded through a resistor R8, the gate of the MOS transistor Q2 is grounded through a capacitor C3, the common connection point A between the gate of the MOS transistor and the resistor R8 is connected with the collector of the triode Q3, wherein the MOS transistor Q2 is a PMOS transistor;
the anode of the diode D2 is connected to the emitter of the phototriode of the optocoupler G1, the cathode of the diode D2 is connected to the base of the triode Q6 through the resistor R20, the emitter of the triode Q6 is grounded, and the collector of the triode Q6 is connected to the detection terminal CON3 of the master controller;
the base electrode of the triode Q7 is connected to a common connection point between the resistor R2 and the resistor R4 through the resistor R22, the collector electrode of the triode Q7 is connected with 5V direct current, the emitter electrode of the triode Q7 is connected with the coil J1 of the normally closed relay in series through the resistor R21 and then grounded, one end of the normally closed switch J-K1 of the normally closed relay is connected with the standby lithium battery Vbat, and the other end of the normally closed switch J-K1 of the normally closed relay is connected with the input end of.
4. The power carrier three-primary-color multi-color-temperature LED street lamp control system according to claim 3, characterized in that: the preceding stage power supply circuit also comprises a power supply detection circuit;
the power supply detection circuit comprises a resistor R23, a resistor R24, a resistor R25, a triode Q8, a capacitor C4 and a voltage-stabilizing tube DW 2;
one end of the resistor R23 is connected to the output end of the operational amplifier U1, the other end of the resistor R3632 is grounded through a resistor R24, a common connection point between the resistor R23 and the resistor R24 is connected to the base of the triode Q8 through a resistor R25, the base of the triode Q8 is grounded through a capacitor C4, the base of the triode Q8 is further connected with the negative electrode of a voltage regulator tube DW2, the positive electrode of the voltage regulator tube DW2 is grounded, the emitter of the triode Q8 is grounded, and the collector of the triode Q8 is connected with a signal terminal CON4 of the master controller.
5. The power carrier three-primary-color multi-color-temperature LED street lamp control system according to claim 1, characterized in that: the main controller and the environment processing circuit are single-chip microcomputers.
6. The power carrier three-primary-color multi-color-temperature LED street lamp control system according to claim 1, characterized in that: the rectifying circuit is a full-bridge rectifying circuit consisting of diodes.
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| CN201811614137.0A CN109526111B (en) | 2018-12-27 | 2018-12-27 | Power carrier wave three-primary-color multi-color-temperature LED street lamp control system |
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