CN209608906U - Intelligent lighting controller and lighting system - Google Patents
Intelligent lighting controller and lighting system Download PDFInfo
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- CN209608906U CN209608906U CN201821588048.9U CN201821588048U CN209608906U CN 209608906 U CN209608906 U CN 209608906U CN 201821588048 U CN201821588048 U CN 201821588048U CN 209608906 U CN209608906 U CN 209608906U
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The utility model discloses a kind of intelligent lighting controller and lighting systems, the intelligent lighting controller includes Lora communicating circuit, MCU, parameter collection module and output control module, first signal transmission end of Lora communicating circuit is connect through Lora gateway with host computer, and the second signal transmission end of Lora communicating circuit is connect with MCU；The input terminal of MCU is connect with parameter collection module, and the output end of MCU is connect with output control module；Parameter collection module is exported for acquiring the parameter signal of lamps and lanterns, and by collected parameter signal to MCU；Lora communicating circuit, for realizing the communication connection of MCU and LORA gateway；MCU, the parameter signal for being acquired according to parameter collection module export corresponding control signal；Output control module, for controlling lamps and lanterns work according to the control signal of MCU.The utility model solves road lamp and has a single function, and the problems such as can not remotely manage the malfunction of lamps and lanterns.
Description
Technical Field
The utility model relates to an electronic circuit technical field, in particular to intelligence lighting controller and lighting system.
Background
The existing street lamp mainly takes dimming as a main part, or can only realize simple dimming, and can not remotely manage various lamp fault states such as lamp pole inclination, lamp leakage and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an intelligence lighting controller and electrical equipment aims at solving various states such as the unable remote management lamps and lanterns temperature of lighting control system, lamp pole gradient, lamps and lanterns electric leakage, easily causes the wasting of resources of a large amount of electric power, manpower, financial affairs to and there is the problem that lamps and lanterns electric leakage brought the danger of personal safety.
In order to achieve the above object, the utility model provides an intelligence lighting controller.
The intelligent lighting controller comprises a Lora communication circuit, an MCU, a parameter acquisition module and an output control module, wherein a first signal transmission end of the Lora communication circuit is connected with an upper computer through a Lora gateway, and a second signal transmission end of the Lora communication circuit is connected with the MCU; the input end of the MCU is connected with the parameter acquisition module, and the output end of the MCU is connected with the output control module; wherein,
the parameter acquisition module is used for acquiring parameter signals of the lamp and outputting the acquired parameter signals to the MCU; the parameter signal includes: voltage signal, current signal, illuminance, temperature, lamp pole gradient and electric leakage signal;
the Lora communication circuit is used for realizing the communication connection between the MCU and the upper computer through the Lora gateway;
the MCU is used for outputting corresponding control signals according to the parameter signals of the parameter acquisition module, or the MCU receives control instructions output by the upper computer through the Lora communication circuit so as to output corresponding control signals according to the received control instructions;
and the output control module is used for controlling the lamp to work according to the control signal of the MCU.
Optionally, the intelligent lighting controller further comprises an AC-DC circuit, an input end of the AC-DC circuit is connected with an alternating current power supply, and an output end of the AC-DC circuit is connected with the MCU.
Optionally, the output control module includes a switch control circuit and a PWM dimming output circuit, an input end of the switch control circuit is connected to the MCU, and an output end of the switch control circuit is connected to the lamp; the input end of the PWM dimming output circuit is connected with the MCU, and the output end of the PWM dimming output circuit is connected with a dimming interface of the lamp driving power supply.
Optionally, the switch control circuit includes a first electronic switch, a relay, an eighth resistor, a ninth resistor, a tenth resistor, and a first diode, a first end of the ninth resistor is an input end of the switch control circuit, and a second end of the ninth resistor is interconnected with the controlled end of the first electronic switch and a first end of the tenth resistor; a second end of the tenth resistor is grounded; the input end of the first electronic switch is grounded, and the output end of the first electronic switch is interconnected with the first end of the relay coil and the anode of the first diode; the second end of the relay coil and the first end of the eighth resistor are interconnected with the cathode of the first diode, the normally closed contact of the relay is used for being connected with an alternating current power supply, and the normally open contact of the relay is connected with a live wire of a lamp driving power supply; and the second end of the eighth resistor is connected with a power supply.
Optionally, the PWM dimming output circuit includes an operational amplifier, a third capacitor, a fourth capacitor, an eleventh resistor, a twelfth resistor, and a thirteenth resistor; a first end of the thirteenth resistor is an input end of the PWM dimming output circuit, a second end of the thirteenth resistor is connected to the first end of the third capacitor and the positive-phase input end of the operational amplifier, and a second end of the third capacitor is grounded; a first end of the eleventh resistor is connected with the output end of the operational amplifier, a second end of the eleventh resistor is interconnected with a first end of the twelfth resistor and the inverting input end of the operational amplifier, and a second end of the twelfth resistor is grounded; and the first end of the fourth capacitor is connected with the power supply end of the operational amplifier, and the second end of the fourth capacitor is grounded.
Optionally, the parameter acquisition module includes an electric leakage detection circuit, an electric parameter acquisition circuit and a sensor data acquisition circuit, the input ends of the electric leakage detection circuit, the electric parameter acquisition circuit and the sensor data acquisition module circuit are respectively connected with the lamp, and the output ends of the electric leakage detection circuit, the electric parameter acquisition circuit and the sensor data acquisition module circuit are respectively connected with the MCU.
Optionally, the leakage detection circuit comprises a zero sequence transformer and a signal amplification unit, the zero sequence transformer penetrates through a zero line and a live line of the lamp driving power supply, and an output end of the zero sequence transformer is connected with an input end of the signal amplification unit; and the output end of the signal amplification unit is connected with the MCU.
Optionally, the electrical parameter acquisition circuit comprises a voltage acquisition circuit, a current acquisition circuit and an a/D conversion circuit, an input end of the voltage acquisition circuit is connected with the lamp driving power supply, and an output end of the voltage acquisition circuit is connected with the a/D conversion circuit; the input end of the current acquisition circuit is connected with the lamp driving power supply, and the output end of the current acquisition circuit is connected with the A/D conversion circuit; and the output end of the A/D conversion circuit is connected with the MCU.
Optionally, the sensor data acquisition circuit includes an illuminance sensor, a lamp pole inclination sensor and a temperature sensor, the illuminance sensor, the lamp pole inclination sensor and the temperature sensor are respectively arranged near the lamp, and the output ends of the illuminance sensor, the lamp pole inclination sensor and the temperature sensor are respectively connected with the MCU.
The utility model also provides a lighting system, this lighting system includes above-mentioned intelligent lighting controller.
The intelligent lighting controller comprises a Lora communication circuit, an MCU, a parameter acquisition module and an output control module, wherein the input end of the Lora communication circuit is connected with the MCU and an upper computer, the first signal transmission end of the Lora communication circuit is connected with the upper computer through a Lora gateway, and the second signal transmission end of the Lora communication circuit is connected with the MCU; the input end of the MCU is connected with the parameter acquisition module, and the output end of the MCU is connected with the output control module; the parameter acquisition module is used for acquiring parameter signals of the lamp and outputting the acquired parameter signals to the MCU; the parameter signal includes: voltage signal, current signal, illuminance, temperature, lamp pole gradient and electric leakage signal; the Lora communication circuit is used for realizing communication connection between the MCU and the upper computer; the MCU is used for outputting corresponding control signals according to the parameter signals of the parameter acquisition module, or the MCU receives control instructions output by the upper computer through the Lora communication circuit so as to output corresponding control signals according to the received control instructions; and the output control module is used for controlling the lamp to work according to the control signal of the MCU.
The utility model is provided with the MCU to monitor and detect the working state of the parameter acquisition module and output a control signal to the output control circuit, and is connected with the Lora communication circuit, and realizes the connection of the Lora communication circuit with an upper computer through a Lora gateway, and realizes the bidirectional transmission of data with an upper computer, and further transmits the data to the MCU, the MCU controls the working state of each unit, meanwhile, the data collected by the MCU is transmitted to the upper computer through the Lora communication circuit and the Lora gateway, the Lora communication circuit is adopted by the utility model to be intercommunicated and interconnected with the upper computer, thereby facilitating the high-efficiency remote transmission of various data, meanwhile, an illuminance sensor, an inclination sensor, a temperature and humidity sensor, a voltage acquisition circuit, a current acquisition circuit and a lamp leakage detection circuit are integrated inside the lamp, the intelligent street lamp and household lamp intelligent lighting system can monitor the state of the lamp in real time and feed the state back to an upper computer, is efficient and quick, and achieves intelligent lighting of street lamps and household lamps. The utility model provides a lighting control system can't remote management lamps and lanterns temperature, lamp pole gradient, lamps and lanterns electric leakage various states, easily cause the wasting of resources of a large amount of electric power, manpower, financial affairs to and there is the dangerous problem that the lamps and lanterns electric leakage brought personal safety.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of functional modules of the intelligent lighting controller of the present invention applied to a lighting system;
fig. 2 is a schematic diagram of functional modules of the intelligent lighting controller of the present invention applied to a lighting system;
FIG. 3 is a functional block diagram of the AC-DC circuit of FIG. 2;
FIG. 4 is a functional block diagram of the sensor data acquisition circuit of FIG. 2;
FIG. 5 is a schematic diagram of an embodiment of the PWM dimming output circuit and the leakage detection circuit of FIG. 2;
FIG. 6 is a schematic diagram of an embodiment of the switch control circuit of FIG. 2;
fig. 7 is a schematic structural diagram of an embodiment of a current collection circuit of the electrical parameter collection module in fig. 2.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides an intelligence lighting controller.
Referring to fig. 1, in an embodiment of the present invention, the intelligent lighting controller includes a Lora communication circuit 200, an MCU100, a parameter acquisition module 300, and an output control module 400, wherein a first signal transmission end of the Lora communication circuit 200 is connected to an upper computer through a Lora gateway, and a second signal transmission end of the Lora communication circuit is connected to the MCU; the input end of the MCU is connected with the parameter acquisition module, and the output end of the MCU is connected with the output control module; wherein,
the parameter acquisition module 300 is configured to acquire a parameter signal of a lamp and output the acquired parameter signal to the MCU 100; the parameter signal includes: voltage signal, current signal, illuminance, temperature, lamp pole gradient and electric leakage signal;
the Lora communication circuit 200 is used for realizing communication connection between the MCU100 and the upper computer;
the MCU100 is configured to output a corresponding control signal according to the parameter signal acquired by the parameter acquisition module 300, or the MCU100 receives a control instruction output by the upper computer through the Lora communication circuit 200 to output a corresponding control signal according to the received control instruction;
the output control module 400 is configured to control a lamp to work according to the control signal of the MCU 100.
In this embodiment, the Lora communication circuit 200 is configured to implement communication connection between the MCU100 and an upper computer, implement bidirectional transmission of data, and transmit the data to the MCU100, where the MCU100 controls the output control module 400 to operate according to a control instruction output by the upper computer, and the MCU100 transmits a voltage signal, a current signal, illuminance, a temperature, a lamp pole inclination, and a leakage signal, which are acquired by the parameter acquisition module 300, to the upper computer through the Lora communication circuit and through the Lora gateway; the MCU100 controls the operation of the output control module 400 according to the parameter signals collected by the parameter collecting module 300.
It can be understood that, through set up the Lora gateway between Lora communication circuit 200 and host computer for realize the signal transmission between Lora communication circuit 200 and the host computer, can realize simultaneously the utility model discloses data signal's wireless transmission between intelligent lighting controller and the host computer. Further, referring to fig. 2, the parameter acquisition module 300 includes a leakage detection circuit 310, an electrical parameter acquisition circuit 320, and a sensor data acquisition circuit 330; the output control module 400 includes a switching control circuit 410 and a PWM dimming output circuit 420.
In this embodiment, the AC-DC circuit 320 is connected to an AC power supply to convert the accessed AC cigarette into DC power and supply power to the MCU100 and other circuit modules of the lighting control system. The input ends of the leakage detection circuit 310, the electrical parameter acquisition circuit 320 and the sensor data acquisition circuit 330 are respectively connected with the lamp, and are used for acquiring a leakage signal, a voltage signal, a current signal, the brightness of the lamp, the temperature of the lamp and the inclination of a lamp post of the lamp and outputting the acquired signals to the MCU 100; the input ends of the switch control circuit 410 and the PWM dimming output circuit 420 are respectively connected to the MCU100, the MCU100 further outputs a control command to the switch control circuit 410 and the PWM dimming output circuit 420 according to the signals input from the leakage detection circuit 310, the electrical parameter acquisition circuit 320, and the sensor data acquisition circuit 330 to control the on/off state and the brightness of the lamp, the MCU100 further receives the control command from the upper computer through the Lora communication circuit, and outputs a corresponding control signal to the switch control circuit 410 and the PWM dimming output circuit 420 according to the received control command to control the on/off state and the brightness of the lamp.
MCU100 is connected with Lora communication circuit 200 to be connected through Lora communication circuit 200 through Lora gateway and host computer communication, thereby carry out the bidirectional transmission of data, and give MCU100, by each unit operating condition of MCU100 control, the electric leakage signal of lamps and lanterns, voltage signal, current signal, illuminance, temperature and the lamp pole gradient that simultaneously gather MCU100 are exported to the host computer through Lora communication circuit 200. Meanwhile, when receiving parameter signals such as a leakage signal, a voltage signal, a current signal, illuminance, temperature, lamp pole inclination and the like of the lamp, the MCU outputs corresponding control signals to the switch control circuit 410 and the PWM dimming output circuit 420 according to the parameter signals so as to control the on/off state and brightness of the lamp, and the setting is such that intelligent illumination without manual intervention is realized, so that remote monitoring of the lamp and remote transmission of lamp data are realized.
The utility model discloses a set up MCU100 control and detect parameter acquisition module 300's operating condition, and output control signal to output control circuit 400, and be connected with Lora communication circuit 200, and realize Lora communication circuit 200 and be connected with the host computer through the Lora gateway, and realize the bidirectional transmission of data with the host computer, further transmit to MCU100, by the operating condition of each unit of MCU100 control, pass through Lora communication circuit 200 with the data that MCU100 gathered simultaneously and transmit to the host computer through the Lora gateway, the utility model discloses a Lora communication circuit 200, with the intercommunication of host computer interconnection, the high efficiency remote transmission of all kinds of data of being convenient for, while internal integration light intensity sensor, tilt sensor, temperature and humidity sensor, voltage acquisition circuit, current acquisition circuit, lamps and lanterns leakage detection circuit, but real time monitoring lamps and lanterns state feeds back to the host computer, it is high-efficient, swift, realize street lamp, lamp, Domestic lamps and lanterns wisdom illumination. The utility model provides a lighting control system can't remote management lamps and lanterns temperature, lamp pole gradient, lamps and lanterns electric leakage various states, easily cause the wasting of resources of a large amount of electric power, manpower, financial affairs to and there is the dangerous problem that the lamps and lanterns electric leakage brought personal safety.
Referring to fig. 3, in an alternative embodiment, the intelligent lighting controller further comprises an AC-DC circuit 500, wherein an input terminal of the AC-DC circuit 500 is connected to a power supply, and an output terminal of the AC-DC circuit 500 is connected to the MCU 100.
Further, the AC-DC circuit 500 comprises a lightning protection circuit 510, an EMC filter circuit 520, a rectifying filter circuit 530 and a DC-DC voltage reduction circuit 540, wherein an input terminal of the lightning protection circuit 510 is connected to a power supply, and an output terminal of the lightning protection circuit 510 is connected to an input terminal of the EMC filter circuit 520; the output end of the EMC filter circuit 520 is connected with the input end of the rectifying filter circuit 530; the output end of the rectifying and filtering circuit 530 is connected with the input end of the DC-DC circuit 540; the output terminal of the DC-DC circuit 540 is connected to the MCU 100.
In this embodiment, the input end of the lightning protection circuit 510 is connected to a power supply for inputting ac power, and outputs a signal to the rectifying and filtering circuit 530 through the EMC filtering circuit 520, and the rectifying and filtering circuit rectifies and filters the input ac power and outputs a stable DC power to the DC-DC voltage reduction circuit 540, so that the DC-DC voltage reduction circuit converts the input ac power into a working voltage for each unit of the intelligent lighting controller to work.
Wherein, EMC filter circuit is arranged in filtering the electromagnetic interference among the alternating current power supply signal, and lightning protection circuit can effectually prevent that intelligent lighting controller from suffering the thunderbolt and damaging intelligent lighting controller.
Referring to fig. 4, in an alternative embodiment, the sensor data collecting circuit 340 includes a light intensity sensor 341, a light pole inclination sensor 342, and a temperature sensor 343, wherein the input terminals of the light intensity sensor 341, the light pole inclination sensor 342, and the temperature sensor 343 are disposed near the lamp, and the output terminals of the light intensity sensor 341, the light pole inclination sensor 342, and the temperature sensor 343 are respectively connected to the MCU 100.
In this embodiment, the illuminance sensor 341 is configured to collect an illuminance signal of the lamp, the pole inclination sensor 342 is configured to collect an inclination signal of the pole, and the temperature sensor 343 is configured to collect a temperature signal of the lamp; illuminance sensor 341, temperature sensor 342, lamp pole slope sensor 343 is the signal transmission to MCU100 of the lamps and lanterns of gathering respectively, MCU100 transmits the above-mentioned signal of lamps and lanterns to the host computer through Lora communication circuit 200, so that the host computer is according to the above-mentioned signal of receiving, output corresponding control command to MCU, thereby make MCU when receiving control command, produce the control signal that corresponds, and then drive each circuit module work, in order to drive lamps and lanterns, this embodiment can realize host computer and MCU's remote communication through setting up Lora communication circuit, thereby realize the remote control of lamps and lanterns.
It can be understood that the illuminance sensor 341, the temperature sensor 342 and the lamp pole inclination sensor 343 are arranged close to the lamp, so that the upper computer can detect the illuminance, the temperature and the lamp pole inclination of the lamp in time, and maintain the lamp in time according to the detected lamp signal.
Referring to fig. 5, in an alternative embodiment, the leakage detecting circuit 310 includes a zero sequence transformer (not shown) and a signal amplifying unit (not shown), the zero sequence transformer passes through a zero line and a live line of the driving power supply of the lamp, and an output end of the zero sequence transformer is connected to an input end of the signal amplifying unit; and the output end of the signal amplification unit is connected with the MCU.
In this embodiment, the zero sequence transformer is used for passing through the live wire and the zero line of the lamp driving power supply, and when a leakage phenomenon occurs in the lamp, that is, when a leakage current signal of the live wire and the zero line is sensed, the zero sequence transformer converts the detected leakage current signal into a corresponding voltage signal, that is, when the leakage current signal is detected, the voltage signal is output to the signal amplification unit, so that the leakage current signal is amplified and then output to the MCU100, and thus the MCU100 performs a leakage protection action.
It can be understood that by arranging the leakage detection circuit 310, the leakage signal of the lamp can be detected in time, and personal safety is effectively protected.
Referring to fig. 5 and 6, in an alternative embodiment, the output control module 400 includes a switch control circuit 410 and a PWM dimming output circuit 420, an input terminal of the switch control circuit 410 is connected to the MCU100, and an output terminal of the switch control circuit 410 is connected to the lamp; the input end of the PWM dimming output circuit 420 is connected to the MCU100, and the output end of the PWM dimming output circuit 420 is connected to the dimming interface of the lamp driving power supply.
Further, the switch control circuit 410 includes a first electronic switch Q1, a relay U1, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10 and a first diode D1, a first end of the ninth resistor R9 is an input end of the switch control circuit 410, and a second end of the ninth resistor R9 is interconnected with a controlled end of the first electronic switch Q1 and a first end of the tenth resistor R10; a second end of the tenth resistor R10 is grounded; an input terminal of the first electronic switch Q1 is grounded, and an output terminal of the first electronic switch Q1 is interconnected with a first terminal of the relay coil U1 and an anode of the first diode D1; a second end of the relay coil U1 is interconnected with a first end of the eighth resistor R8 and a cathode of the first diode D1, a normally closed contact of the relay U1 is used for connecting an alternating current power supply, and a normally open contact of the relay U1 is connected with a live wire of a lamp driving power supply; the second end of the eighth resistor R8 is connected to a power supply.
In this embodiment, the ninth resistor R9 and the tenth resistor R10 are disposed between the input terminal of the switch control circuit 410 and the controlled terminal of the first electronic switch Q1, so as to output the voltage-controlled signal to the first electronic switch Q1 after performing serial voltage division, thereby controlling the turn-off of the first electronic switch Q1; in this embodiment, the first electronic switch Q1 is an NPN type triode, a base of the NPN type triode is a controlled terminal of the first electronic switch Q1, an emitter of the NPN type triode is an input terminal of the first electronic switch Q1, and a collector of the NPN type triode is an output terminal of the first electronic switch Q1; the normally closed contact of the relay U1 is used for being connected with an alternating current power supply, the normally open contact of the relay U1 is connected with a live wire of a lamp driving power supply, the first end of the relay U1 is connected with the first electronic switch Q1, the second end of the relay U1 is connected with a power supply, and the relay U1 supplies power to the circuit through an AC-DC circuit by being connected with the second-stage output end of the AC-DC circuit; the first diode D1 is connected in parallel with the relay U1 to protect the first electronic switch Q1 from being broken down by the counter-electromotive force generated by the relay.
Specifically, when a high level signal output by the MCU100 is received, the NPN type transistor is turned on to trigger the relay U1 to be closed, so as to control the lamp driving power supply to supply power to the lamp, and the lamp starts to operate; when receiving the low level signal output by the MCU100, the NPN type transistor is turned off and triggers the relay to turn off, thereby controlling the driving power supply to stop supplying power to the lamp and the lamp to stop working.
Further, in the above embodiment, the PWM dimming output circuit 420 includes an operational amplifier U2, a third capacitor C3, a fourth capacitor C4, an eleventh resistor R11, a twelfth resistor R12 and a thirteenth resistor R13; a first terminal of the thirteenth resistor R13 is an input terminal of the PWM dimming output circuit 420, a second terminal of the thirteenth resistor R13 is connected to the first terminal of the third capacitor C3 and the non-inverting input terminal of the operational amplifier U2, and a second terminal of the third capacitor C3 is grounded; a first end of the eleventh resistor R11 is connected to the output end of the operational amplifier U2, a second end of the eleventh resistor R11 and a first end of the twelfth resistor R12 are interconnected to the inverting input end of the operational amplifier U2, and a second end of the twelfth resistor R12 is grounded; the first end of the fourth capacitor C4 is connected with the power supply end of the operational amplifier U2, and the second end of the fourth capacitor C4 is grounded.
In this embodiment, the PWM dimming signal is input to the operational amplifier U2 through the positive input terminal of the operational amplifier U2, the PWM signal is amplified and output through the operational amplifier U2, and the output terminal of the operational amplifier is used for connecting the dimming interface of the lamp driving power supply to output the amplified PWM dimming signal, so as to adjust the brightness of the lamp.
The thirteenth resistor R13 is a current-limiting resistor, and is connected in parallel between the input terminal of the PWM dimming output circuit 420 and the operational amplifier U2, for preventing the input current from being too large and damaging the operational amplifier U2, the third capacitor C3 is used for filtering the interference signal output from the second terminal of the thirteenth resistor R13, and the fourth capacitor C4 is connected to the power supply terminal of the operational amplifier U2, and is used as an energy storage element to supply power to the circuit.
Referring to fig. 7, in an alternative embodiment, the electrical parameter collecting module 330 includes a voltage collecting circuit, a current collecting circuit 332, and an a/D converting circuit (not shown), wherein an input end of the voltage collecting circuit is connected to the lamp driving power supply, and an output end of the voltage collecting circuit is connected to the a/D converting circuit; the input end of the current acquisition circuit 332 is connected with the lamp driving power supply, and the output end of the current acquisition circuit 332 is connected with the A/D conversion circuit; the output end of the A/D conversion circuit is connected with the MCU 100.
It can be understood that, in the lighting system, a driving power supply is generally further provided, and in this embodiment, the voltage acquisition circuit and the current acquisition circuit 332 may be provided at an ac input end of the lamp driving power supply, so as to detect the voltage and the current input at the ac input end of the driving power supply, convert the voltage and the current into a voltage detection signal and a current detection signal, and output the voltage detection signal and the current detection signal.
Further, in the above embodiment, the current collecting circuit 332 includes a current transformer CT, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor C1, and a second capacitor C2; the second end of the current transformer CT is interconnected with a first end of a first resistor R1 and a first end of a second resistor R2, and the first end of the current transformer CT is interconnected with a first end of a third resistor R3 and a first end of a fourth resistor R4; the second end of the first resistor R1 is connected with the first end of the first capacitor C1; a second end of the second resistor R2 is grounded; the second end of the first capacitor C1 is grounded; a second end of the fourth resistor R4 is connected with a first end of a second capacitor C2; a second end of the third resistor R3 is grounded; a second end of the second capacitor C2 is grounded; the second ends of the first resistor R1 and the fourth resistor R4 form the output end of the current collecting circuit 332.
In this embodiment, the current transformer CT is disposed at the ac input terminal of the driving power supply to detect a current signal at the ac input terminal of the driving power supply, output the acquired analog current signal to the a/D conversion circuit, convert the analog current signal into a digital current signal by the a/D conversion circuit, and output the digital current signal to the MCU 100.
The first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 are used for converting a current signal output by the current transformer CT into a voltage signal and outputting the voltage signal, the first capacitor C1 is connected with the second end of the first resistor R1, the second capacitor C2 is connected with the second end of the fourth resistor R4, and the first capacitor C1 and the second capacitor C2 are used for filtering interference signals in the voltage signal accessed by the first resistor R1 and the fourth resistor R4.
Further, in the above embodiment, the voltage acquisition circuit includes a voltage transformer, a fifth resistor, a sixth resistor, and a seventh resistor, where a first end and a second end of the voltage transformer are input ends of the voltage acquisition circuit, the second end of the voltage transformer is an output end of the voltage acquisition circuit, and a third end of the voltage transformer is grounded; the first end of the fifth resistor is an input end of the voltage acquisition circuit, the second end of the fifth resistor is connected with the first end of the sixth resistor, the second end of the sixth resistor is connected with the first end of the seventh resistor, the second end of the seventh resistor is connected with the first end of the voltage transformer, and the fifth resistor, the sixth resistor and the seventh resistor are sequentially connected in series between the alternating current input end and the first end of the voltage transformer.
In this embodiment, the voltage transformer may be disposed at the ac input end of the driving power supply to detect a voltage signal at the ac input end of the driving power supply, output the acquired analog voltage signal to the a/D conversion circuit, and output the digital voltage signal to the MCU100 after being converted by the a/D conversion circuit.
The fifth resistor, the sixth resistor and the seventh resistor are sequentially connected in series between the alternating current input end and the first end of the voltage transformer, and the voltage transformer is prevented from being damaged due to overlarge current input to the voltage transformer.
The utility model also provides a lighting system, this lighting system include as above intelligent lighting controller. The detailed structure of the intelligent lighting controller can refer to the above embodiments, and is not described herein; it can be understood that, because the utility model discloses above-mentioned intelligent lighting controller has been used among the electrical equipment, consequently, the utility model discloses electrical equipment's embodiment includes all technical scheme of the whole embodiments of above-mentioned intelligent lighting controller, and the technical effect that reaches is also identical, no longer gives unnecessary details here.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. An intelligent lighting controller is characterized by comprising a Lora communication circuit, an MCU, a parameter acquisition module and an output control module, wherein a first signal transmission end of the Lora communication circuit is in communication connection with an upper computer through a Lora gateway, and a second signal transmission end of the Lora communication circuit is connected with the MCU; the input end of the MCU is connected with the parameter acquisition module, and the output end of the MCU is connected with the output control module; wherein,
the parameter acquisition module is used for acquiring parameter signals of the lamp and outputting the acquired parameter signals to the MCU; the parameter signal includes: voltage signal, current signal, illuminance, temperature, lamp pole gradient and electric leakage signal;
the Lora communication circuit is used for realizing the communication connection between the MCU and the upper computer through the Lora gateway;
the MCU is used for outputting corresponding control signals according to the parameter signals acquired by the parameter acquisition module, or the MCU receives control instructions output by the upper computer through the Lora communication circuit so as to output corresponding control signals according to the received control instructions;
and the output control module is used for controlling the lamp to work according to the control signal of the MCU.
2. The intelligent lighting controller of claim 1, further comprising an AC-DC circuit, an input of the AC-DC circuit being connected to an alternating current power source, an output of the AC-DC circuit being connected to the MCU.
3. The intelligent lighting controller of claim 1, wherein the output control module comprises a switch control circuit and a PWM dimming output circuit, an input terminal of the switch control circuit is connected to the MCU, and an output terminal of the switch control circuit is connected to the light fixture; the input end of the PWM dimming output circuit is connected with the MCU, and the output end of the PWM dimming output circuit is connected with a dimming interface of the lamp driving power supply.
4. The intelligent lighting controller of claim 3, wherein the switch control circuit comprises a first electronic switch, a relay, an eighth resistor, a ninth resistor, a tenth resistor, and a first diode, a first end of the ninth resistor being an input end of the switch control circuit, a second end of the ninth resistor being interconnected with the controlled end of the first electronic switch and a first end of the tenth resistor; a second end of the tenth resistor is grounded; the input end of the first electronic switch is grounded, and the output end of the first electronic switch is interconnected with the first end of the relay coil and the anode of the first diode; the second end of the relay coil is interconnected with the first end of the eighth resistor and the cathode of the first diode, the normally closed contact of the relay is used for being connected with an alternating current power supply, and the normally open contact of the relay is connected with a live wire of a lamp driving power supply; and the second end of the eighth resistor is connected with a power supply.
5. The intelligent lighting controller of claim 3, wherein the PWM dimming output circuit comprises an operational amplifier, a third capacitor, a fourth capacitor, an eleventh resistor, a twelfth resistor, and a thirteenth resistor; a first end of the thirteenth resistor is an input end of the PWM dimming output circuit, a second end of the thirteenth resistor and a first end of the third capacitor are connected to a positive input end of the operational amplifier, and a second end of the third capacitor is grounded; a first end of the eleventh resistor is connected with an output end of the operational amplifier, a second end of the eleventh resistor and a first end of the twelfth resistor are interconnected with an inverting input end of the operational amplifier, and a second end of the twelfth resistor is grounded; and the first end of the fourth capacitor is connected with the power supply end of the operational amplifier, and the second end of the fourth capacitor is grounded.
6. The intelligent lighting controller according to any one of claims 1 to 5, wherein the parameter acquisition module comprises a leakage detection circuit, an electrical parameter acquisition circuit and a sensor data acquisition circuit, wherein the input ends of the leakage detection circuit, the electrical parameter acquisition circuit and the sensor data acquisition circuit are respectively connected with the lamp, and the output ends of the leakage detection circuit, the electrical parameter acquisition circuit and the sensor data acquisition circuit are respectively connected with the MCU.
7. The intelligent lighting controller according to claim 6, wherein the leakage detection circuit comprises a zero sequence transformer and a signal amplification unit, the zero sequence transformer passes through a zero line and a live line of the lamp driving power supply, and an output end of the zero sequence transformer is connected with an input end of the signal amplification unit; and the output end of the signal amplification unit is connected with the MCU.
8. The intelligent lighting controller of claim 6, wherein the electrical parameter acquisition circuit comprises a voltage acquisition circuit, a current acquisition circuit and an A/D conversion circuit, wherein an input end of the voltage acquisition circuit is connected with a driving power supply of the lamp, and an output end of the voltage acquisition circuit is connected with the A/D conversion circuit; the input end of the current acquisition circuit is connected with a driving power supply of the lamp, and the output end of the current acquisition circuit is connected with the A/D conversion circuit; and the output end of the A/D conversion circuit is connected with the MCU.
9. The intelligent lighting controller of claim 6, wherein the sensor data acquisition circuit comprises a light intensity sensor, a light pole inclination sensor and a temperature sensor, the light intensity sensor, the light pole inclination sensor and the temperature sensor are respectively arranged close to the lamp, and output ends of the light intensity sensor, the light pole inclination sensor and the temperature sensor are respectively connected with the MCU.
10. A lighting system comprising a light fixture and the intelligent lighting controller of any one of claims 1 to 9, wherein the output control module of the intelligent lighting controller is connected to the light fixture.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111295026A (en) * | 2020-03-15 | 2020-06-16 | 陈青腾 | Street lamp control system based on LoRa wireless communication agreement |
| CN112952752A (en) * | 2021-02-08 | 2021-06-11 | 中电海康集团有限公司 | Automatic power-off method and system for intelligent lamp pole |
-
2018
- 2018-09-27 CN CN201821588048.9U patent/CN209608906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111295026A (en) * | 2020-03-15 | 2020-06-16 | 陈青腾 | Street lamp control system based on LoRa wireless communication agreement |
| CN112952752A (en) * | 2021-02-08 | 2021-06-11 | 中电海康集团有限公司 | Automatic power-off method and system for intelligent lamp pole |
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