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CN109743808A - A kind of LED power system based on wisdom sensing - Google Patents

A kind of LED power system based on wisdom sensing Download PDF

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Publication number
CN109743808A
CN109743808A CN201811527407.4A CN201811527407A CN109743808A CN 109743808 A CN109743808 A CN 109743808A CN 201811527407 A CN201811527407 A CN 201811527407A CN 109743808 A CN109743808 A CN 109743808A
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CN
China
Prior art keywords
circuit
led power
microprocessor
power
detection sensor
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811527407.4A
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Chinese (zh)
Inventor
李刚
杨冕
韩明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Energy Investment Refco Group Ltd
Original Assignee
Sichuan Energy Investment Refco Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Energy Investment Refco Group Ltd filed Critical Sichuan Energy Investment Refco Group Ltd
Priority to CN201811527407.4A priority Critical patent/CN109743808A/en
Publication of CN109743808A publication Critical patent/CN109743808A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention discloses a kind of LED power systems based on wisdom sensing, comprising: microprocessor, LED power circuit, electric energy detection sensor circuit, sensor for detecting electric leakage circuit, tilt detection sensor circuit, temperature detection sensor circuit, intelligent recognition sensing device circuit, dimming interface circuit.The electric energy detection sensor circuit, sensor for detecting electric leakage circuit, tilt detection sensor circuit, temperature detection sensor circuit, intelligent recognition sensing device circuit are connect with microprocessor communications, to send relevant information to microprocessor, relevant information is sent to dimming interface circuit and power circuit is adjusted by the microprocessor.Power-supply system of the invention have voltage detecting, detection of electrical leakage, tilt detection, failure report, the functions such as intelligent recognition, conducive to the monitoring and maintenance to LED power performance, the wider array of signal of purposes can be transformed by the input signal needed for power supply from traditional 0-10V or pwm signal or DALI signal by internal system MCU.

Description

A kind of LED power system based on wisdom sensing
Technical field
The present invention relates to LED power technical field more particularly to a kind of LED power systems based on wisdom sensing.
Background technique
LED is referred to as green light source in field of illumination systems, has the characteristics that energy-saving and environmental protection, service life are long, small in size, extensively It is general to be applied to the fields such as various instructions, display, decoration, backlight, general lighting and urban landscape.Just because of LED has energy conservation Efficient feature, in energy-saving and emission-reduction cry surging today, LED illumination will gradually become the Developing mainstream of lighting engineering.China LED industry also enter stage of accelerated development.
Currently, being equipped with power circuit in the lighting apparatus of LED.In general, power circuit include rectification module, Sampling module, control module and lighting module etc., internal circuit connection are more complicated.Its complicated circuit connection, for Detection circuit increases difficulty, and the detection of circuit is allowed to become sufficiently complex.In addition, existing LED power input signal end needs to access The characteristics of the characteristics of 0-10V or pwm signal or DALI signal, purposes is limited to its input and output.
Application publication number discloses a kind of LED power circuit for the Chinese invention patent application of CN101657057A, including Bridge rectifier, driving circuit, transformer rectifier circuit, switching circuit, feed circuit and LED light source circuit, the bridge rectifier The alternating current that circuit is used to input alternating current rectifies, which is used to keep the LED power circuit connection tradition Light modulator can work normally, and the transformer rectifier circuit is for providing work under the control of the switching circuit for the LED light source circuit Make electric current.The feed circuit is used for from the transformer rectifier circuit feedback operation voltage to the switching circuit.
However, the LED power circuit is single LED power circuit, it cannot achieve the feedback to circuit, detection, deposit In the circuit technical problem single without detection, purposes.
Summary of the invention
An object of the present invention at least that, for how to overcome the above-mentioned problems of the prior art, provide one kind Based on the LED power system of wisdom sensing, can have that voltage detecting, detection of electrical leakage, tilt detection, failure report, intelligence is known The functions such as not.
To achieve the goals above, the technical solution adopted by the present invention includes following aspects.
A kind of LED power system based on wisdom sensing, described includes: microprocessor, LED power circuit, electric energy detection Sensor circuit, sensor for detecting electric leakage circuit, tilt detection sensor circuit, temperature detection sensor circuit, intelligent recognition Sensor circuit, dimming interface circuit;Wherein, the LED power circuit includes: input sub-circuit, commutation sub-circuit, samples instead Present sub-circuit, output power adjusts sub-circuit, output sub-circuit;
Wherein, the electric energy detection sensor circuit is electrically connected with the input sub-circuit of LED power circuit, with detection system Electric current, voltage, power;And connect with microprocessor communications, to send its power information detected to microprocessor;
The sensor for detecting electric leakage circuit is used for the drain conditions of detection system, and connect with microprocessor communications, with Its electric leakage information detected is sent to microprocessor;
The tilt detection sensor circuit is used for the heeling condition of detection system, and connect with microprocessor communications, with Its inclination information detected is sent to microprocessor;
The temperature detection sensor circuit is used for the temperature of detection system, and connect with microprocessor communications, with to micro- Processor sends its temperature information detected;
Intelligent recognition sensing device circuit system failure point for identification, and being connect with microprocessor communications, with to micro- Processor sends its fault point information identified;
The output power of described dimming interface circuit one end and LED power circuit adjusts sub-circuit and be electrically connected, the other end and Microprocessor communications connection, to be dimmed according to the signal of microprocessor to LED power circuit;When microprocessor exports positive electricity When ordinary mail, dimming interface circuit adjusts sub-circuit to output power and is adjusted, and increases LED power output power of circuit; When microprocessor exports negative level signal, dimming interface circuit adjusts sub-circuit to output power and is adjusted, and makes LED power Output power of circuit reduces.
Preferably, it is described based on wisdom sensing LED power system in, the microprocessor be based on the power information, Electric leakage information, temperature information issue corresponding positive level signal or negative level signal to dimming interface circuit.
Preferably, in the LED power system based on wisdom sensing, the LED power is input 176-264V exchange Voltage, 0.5A electric current, output 35-52V DC voltage, 980MA, the LED power that output power is 50w.
Preferably, in the LED power system based on wisdom sensing, the electric energy detection sensor circuit, electric leakage inspection Survey sensor circuit, tilt detection sensor circuit, temperature detection sensor circuit, intelligent recognition sensing device circuit, light modulation connect Mouth circuit is connect by RS232, GPRS, NB-IoT or RS485 communication interface with microprocessor communications.
Preferably, in the LED power system based on wisdom sensing, the electric energy detection sensor circuit includes miniature Voltage transformer, current transformer, power measurement chip;The Micro-Transformer of Voltage, current transformer one end and input Circuit is connected, and the other end is connected with the corresponding interface of the power measurement chip.
Preferably, in the LED power system based on wisdom sensing, the sensor for detecting electric leakage circuit is placed in system At circuit board ground, the operational amplifier including two model LM358.
Preferably, in the LED power system based on wisdom sensing, the tilt detection sensor circuit uses model For the accelerometer of ADXL345, to send corresponding inclination information to microprocessor in system run-off the straight.
Preferably, in the LED power system based on wisdom sensing, the intelligent recognition sensing device circuit uses RFID Radio frequency identification carries out fault location.
Preferably, in the LED power system based on wisdom sensing, the temperature detection sensor circuit uses model For the temperature sensor of DS18B20.
In conclusion by adopting the above-described technical solution, the present invention at least has the advantages that
1, by increasing MCU, several hardware devices with sensing function in power source internal, LED power can be made to have The functions such as voltage detecting, detection of electrical leakage, tilt detection, failure report, intelligent recognition.
It 2, can be by the input signal needed for power supply from traditional 0-10V or PWM by internal system MCU (microprocessor) Signal or DALI signal are transformed into RS232 interface signal, using MOBDUS as signal of communication protocol etc., and purposes is broader.
Detailed description of the invention
Fig. 1 is a kind of LED power system structure diagram based on wisdom sensing according to an exemplary embodiment of the present invention;
Fig. 2 is electric energy detection sensor circuit structural schematic diagram according to an exemplary embodiment of the present invention;
Fig. 3 is sensor for detecting electric leakage electrical block diagram according to an exemplary embodiment of the present invention;
Fig. 4 is tilt detection sensor electrical block diagram according to an exemplary embodiment of the present invention;
Fig. 5 is temperature detection sensor electrical block diagram according to an exemplary embodiment of the present invention;
Fig. 6 is dimming interface circuit structural schematic diagram according to an exemplary embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and embodiments, the present invention will be described in further detail, so that the purpose of the present invention, technology Scheme and advantage are more clearly understood.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to It is of the invention in limiting.
Fig. 1 shows a kind of LED power system based on wisdom sensing according to an exemplary embodiment of the present invention.The implementation The LED power system of example specifically includes that microprocessor, LED power circuit, electric energy detection sensor circuit, detection of electrical leakage sensing Device circuit, tilt detection sensor circuit, temperature detection sensor circuit, intelligent recognition sensing device circuit, dimming interface circuit; Wherein, the LED power circuit specifically includes: input sub-circuit, commutation sub-circuit, sampling feedback sub-circuit, output power tune Knot circuit, output sub-circuit.The LED power is input 176-264V alternating voltage, 0.5A electric current, exports 35-52V direct current Voltage, 980MA, the LED power that output power is 50w.
Specifically, as shown in Figure 1 and Figure 2, the electric energy detection sensor circuit includes Micro-Transformer of Voltage (ZMPT107), current transformer (ZMCT205D), power measurement chip (HLW8032), the Micro-Transformer of Voltage, electric current The input terminal of mutual inductor is electrically connected with the input sub-circuit of LED power circuit, pair of their output end and power measurement chip Interface is answered to be connected.The electric energy detection sensor circuit is connected with input sub-circuit for the electric current of power supply, electricity in detection system The factors such as pressure, power.Also by corresponding communication interface, (communication interface is the electric energy detection sensor with microprocessor One of RS232, GPRS, NB-IoT or RS485 communication interface) communication connection, electric energy detection sensor can will test The relevant informations such as supply voltage, electric current, power in system are sent to microprocessor with corresponding digital protocol.When what is detected When power information occurs abnormal, microprocessor can then make corresponding processing according to the power information that sensor is sent and pass through tune Optical interface circuit is adjusted LED power circuit.For example, electric energy detection sensor can detect when LED light brightness is excessively high System power is excessively high, corresponding digital signal (high level) can be sent to microprocessor, it is excessively high that microprocessor receives the power Signal, export negative level signal to dimming interface circuit, output power that dimming interface circuit connects it adjusts sub-circuit It is adjusted, reduces LED power output power of circuit;When LED light brightness is too low, electric energy detection sensor, which can detect, is Power of uniting is too low, and corresponding digital signal (corresponding low level signal) can be sent to microprocessor, described in microprocessor receives The excessively high signal of power exports positive level signal, the output power tune that dimming interface circuit connects it to dimming interface circuit Knot circuit is adjusted, and increases LED power output power of circuit.
Specifically, as shown in figure 3, the sensor for detecting electric leakage circuit includes the operation amplifier of two model LM358 Device.The sensor for detecting electric leakage circuit is placed at circuit system plate earthing that (entire LED power system further includes LED lamp Ontology, sensor for detecting electric leakage circuit be set to street lamp casing to circuit board ground at), be used for the electric leakage feelings of detection system Condition.The sensor for detecting electric leakage circuit also passes through corresponding communication interface communication connection with microprocessor.When system is leaked When electrical anomaly, sensor for detecting electric leakage can send its electric leakage information detected to microprocessor, and microprocessor can then go out Now corresponding alarm mechanism.LED power circuit is adjusted by dimming interface circuit, and is alarmed to remote server It reminds, in order to which staff can be overhauled in time with timely learning abnormal conditions.
Specifically, as shown in figure 4, the tilt detection sensor circuit uses the accelerometer of model ADXL345.Institute It states tilt detection sensor circuit to be placed at system led lamp ontology, to detect state of the entire lamps and lanterns on lamp stand.It is described to incline Oblique detection sensor circuit is also with microprocessor by corresponding communication interface communication connection, when the inclination of discovery lamps and lanterns or lamp stand When inclination, it will do it data and report, send inclination information to microprocessor.Microprocessor receives the inclination information, then does Corresponding processing (carrying out warning reminding to remote server) out, in order to which staff can be inclined different with timely learning street lamp Reason condition is corrected in time.
Specifically, as shown in figure 5, the temperature detection sensor circuit uses the temperature sensor of model DS18B20. The temperature sensor circuit is placed on system led power circuit surrounding, to detect the temperature shape of each circuit of whole system in time State.When whole system temperature increases, especially during the broiling summer, the circuit of system can have the risk of spontaneous combustion.It will be described Temperature detection sensor circuit is connect by corresponding communication interface with microprocessor communications.When system temperature is excessively high, temperature Detection sensor will do it the temperature information that data report, send system to microprocessor.Microprocessor receives the temperature Information then makes corresponding processing.Colour temperature adjustment is carried out to LED power circuit by dimming interface circuit, or to remote service Device carries out the cooling mechanism built in warning reminding or starting, avoids the generation of incidents of spontaneous combustion.
Specifically, the intelligent recognition sensing device circuit uses RFID Radio Frequency Identification Technology, for identification and positioning system Fault point.Intelligent recognition sensing device circuit is connect by corresponding communication interface with microprocessor communications, to send out to microprocessor The fault point information for giving it to identify, the quick fault point of help system.
Specifically, as shown in Fig. 1, Fig. 6, the dimming interface circuit (operation amplifier including two model LM358 Device) output power of one end and LED power circuit adjusts sub-circuit and is electrically connected, and the other end is connect with microprocessor communications.When micro- When processor receives abnormal information (temperature information, power information etc.), or connect by the communication of itself and dimming interface circuit Mouthful, corresponding digital protocol is sent to dimming interface circuit, dimming interface circuit (MCU light adjusting circuit) is assisted to corresponding number After view is decoded decoding, sub-circuit is adjusted by the output power in LED power circuit, digital dimming is carried out to LED power. Color temperature adjustment can be carried out by accurate digital dimming.Specifically, when needing to tune up power circuit power, microprocessor Positive level signal is exported to dimming interface circuit, dimming interface circuit adjusts sub-circuit to output power and is adjusted, and keeps LED electric Source circuit output power increases;And when needing to turn down power circuit power, microprocessor is exported to dimming interface circuit Negative level signal, dimming interface circuit adjust sub-circuit to output power and are adjusted, and subtract LED power output power of circuit It is small.
The above, the only detailed description of the specific embodiment of the invention, rather than limitation of the present invention.The relevant technologies The technical staff in field is not in the case where departing from principle and range of the invention, various replacements, modification and the improvement made It should all be included in the protection scope of the present invention.

Claims (9)

1. it is a kind of based on wisdom sensing LED power system, which is characterized in that it is described include: microprocessor, LED power circuit, Electric energy detection sensor circuit, sensor for detecting electric leakage circuit, tilt detection sensor circuit, temperature detection sensor circuit, Intelligent recognition sensing device circuit, dimming interface circuit;Wherein, the LED power circuit includes: input sub-circuit, commutator electricity Road, sampling feedback sub-circuit, output power adjust sub-circuit, output sub-circuit;
Wherein, the electric energy detection sensor circuit is electrically connected with the input sub-circuit of LED power circuit, with the electricity of detection system Stream, voltage, power;And connect with microprocessor communications, to send its power information detected to microprocessor;
The sensor for detecting electric leakage circuit is used for the drain conditions of detection system, and connect with microprocessor communications, with to micro- Processor sends its electric leakage information detected;
The tilt detection sensor circuit is used for the heeling condition of detection system, and connect with microprocessor communications, with to micro- Processor sends its inclination information detected;
The temperature detection sensor circuit is used for the temperature of detection system, and connect with microprocessor communications, with to micro process Device sends its temperature information detected;
Intelligent recognition sensing device circuit system failure point for identification, and being connect with microprocessor communications, with to micro process Device sends its fault point information identified;
Described dimming interface circuit one end adjusts sub-circuit with the output power of LED power circuit and is electrically connected, the other end and Wei Chu Device communication connection is managed, to dim according to the signal of microprocessor to LED power circuit;When microprocessor exports positive electricity ordinary mail Number when, dimming interface circuit to output power adjust sub-circuit be adjusted, make LED power output power of circuit increase;When micro- When processor exports negative level signal, dimming interface circuit adjusts sub-circuit to output power and is adjusted, and makes LED power circuit Output power reduces.
2. the LED power system according to claim 1 based on wisdom sensing, which is characterized in that the microprocessor base Corresponding positive level signal or negative electricity ordinary mail are issued to dimming interface circuit in the power information, electric leakage information, temperature information Number.
3. the LED power system according to claim 1 based on wisdom sensing, which is characterized in that the LED power is defeated Enter 176-264V alternating voltage, 0.5A electric current, output 35-52V DC voltage, 980MA, the LED power that output power is 50w.
4. the LED power system according to claim 1 based on wisdom sensing, which is characterized in that the electric energy detection passes Sensor circuit, sensor for detecting electric leakage circuit, tilt detection sensor circuit, temperature detection sensor circuit, intelligent recognition pass Sensor circuit, dimming interface circuit are connect by RS232, GPRS, NB-IoT or RS485 communication interface with microprocessor communications.
5. the LED power system according to claim 1 based on wisdom sensing, which is characterized in that the electric energy detection passes Sensor circuit includes Micro-Transformer of Voltage, current transformer, power measurement chip;The Micro-Transformer of Voltage, electric current are mutual Sensor one end is connected with input sub-circuit, and the other end is connected with the corresponding interface of the power measurement chip.
6. the LED power system according to claim 1 based on wisdom sensing, which is characterized in that the detection of electrical leakage passes Sensor circuit is placed at circuit system plate earthing, the operational amplifier including two model LM358.
7. the LED power system according to claim 1 based on wisdom sensing, which is characterized in that the tilt detection passes Sensor circuit uses the accelerometer of model ADXL345, to incline accordingly in system run-off the straight to microprocessor transmission Oblique information.
8. the LED power system according to claim 1 based on wisdom sensing, which is characterized in that the intelligent recognition passes Sensor circuit carries out fault location using RFID radio frequency identification.
9. the LED power system according to claim 1 based on wisdom sensing, which is characterized in that the temperature detection passes Sensor circuit uses the temperature sensor of model DS18B20.
CN201811527407.4A 2018-12-13 2018-12-13 A kind of LED power system based on wisdom sensing Pending CN109743808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811527407.4A CN109743808A (en) 2018-12-13 2018-12-13 A kind of LED power system based on wisdom sensing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811527407.4A CN109743808A (en) 2018-12-13 2018-12-13 A kind of LED power system based on wisdom sensing

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204906802U (en) * 2015-08-18 2015-12-23 上海源明照明科技有限公司 A programming settlement circuit for setting up LED drive power supply output parameter
CN108366478A (en) * 2018-02-06 2018-08-03 上海易壳照明股份有限公司 A kind of single lamp control system based on cellular narrowband Internet of Things
US20180235050A1 (en) * 2014-09-10 2018-08-16 Lutron Electronics Co., Inc. Control device having buttons with multiple-level backlighting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180235050A1 (en) * 2014-09-10 2018-08-16 Lutron Electronics Co., Inc. Control device having buttons with multiple-level backlighting
CN204906802U (en) * 2015-08-18 2015-12-23 上海源明照明科技有限公司 A programming settlement circuit for setting up LED drive power supply output parameter
CN108366478A (en) * 2018-02-06 2018-08-03 上海易壳照明股份有限公司 A kind of single lamp control system based on cellular narrowband Internet of Things

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Application publication date: 20190510

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