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CN108124365A - A kind of energy-saving controller for street lamp and control method - Google Patents

A kind of energy-saving controller for street lamp and control method Download PDF

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Publication number
CN108124365A
CN108124365A CN201711427756.4A CN201711427756A CN108124365A CN 108124365 A CN108124365 A CN 108124365A CN 201711427756 A CN201711427756 A CN 201711427756A CN 108124365 A CN108124365 A CN 108124365A
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CN
China
Prior art keywords
module
street lamp
energy
circuit
output
Prior art date
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
CN201711427756.4A
Other languages
Chinese (zh)
Inventor
陈传伟
杨沁龙
李瑞昌
黄守峰
樊晓翠
陈玉军
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.)
ZHENGZHOU CHUNQUAN ENERGY-SAVING Co Ltd
Original Assignee
ZHENGZHOU CHUNQUAN ENERGY-SAVING Co 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 ZHENGZHOU CHUNQUAN ENERGY-SAVING Co Ltd filed Critical ZHENGZHOU CHUNQUAN ENERGY-SAVING Co Ltd
Priority to CN201711427756.4A priority Critical patent/CN108124365A/en
Publication of CN108124365A publication Critical patent/CN108124365A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/105Controlling the light source in response to determined parameters
    • H05B47/11Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/105Controlling the light source in response to determined parameters
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/16Controlling the light source by timing means
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/175Controlling the light source by remote control
    • H05B47/19Controlling the light source by remote control via wireless transmission
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20Responsive to malfunctions or to light source life; for protection
    • 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
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention belongs to the control technology fields of illuminator, more particularly to a kind of energy-saving controller for street lamp and control method, which includes processor module and the environment monitoring module being connected with processor module, control output module, clock module, street lamp detection module, memory module, communication module and power module;The environment monitoring module includes body induction circuit and photoinduction circuit;The communication module includes wired communicating circuit or wireless communication line;The control output module includes power supply circuit, PWM pulse-width modulation circuits and hands over straight modular converter.The present invention provides a kind of energy-saving controller for street lamp, and simple in structure, novel in design, scientific and reasonable, maintenance simply, realizes the intelligent control to street lamp;The present invention also provides a kind of road lamp energy-saving control methods, can realize the automatic switch of street lamp, brightness regulation meets the requirement that people use, so as to reduce energy consumption, using electricity wisely.

Description

A kind of energy-saving controller for street lamp and control method
Technical field
The invention belongs to the control technology field of illuminator, more particularly to a kind of energy-saving controller for street lamp and controlling party Method.
Background technology
With the development of society, the progress of science and technology, people enter the electric era, and the accelerating rhythm of life causes very much People will also carry out various commercial activitys at night, and particularly in city, the large-scale mankind live in groups life, create city and compare Bright demand.Light in night city lights entire city, facilitates people's life, and street lamp is arrived as lighting apparatus Indispensable stage.Street lamp is the lamps and lanterns that illumination functions are provided to road, is referred in traffic lighting in the illumination zone of road surface Lamps and lanterns.
Light source of the street lamp as city maximum at present, there are problems, because enormous amount, distributed areas are wider, So municipally imparting more and more control requirements to street lamp, management means is single, no energy saving means and measure, simply It is switched, waste situation is than more serious.
The content of the invention
In order to overcome defect in the prior art, the object of the present invention is to provide a kind of energy-saving controller for street lamp, knots Structure is simple, novel in design, scientific and reasonable, maintenance is simple, realizes the intelligent control to street lamp;It is a further object of the present invention to provide A kind of road lamp energy-saving control method can realize the automatic switch of street lamp, and brightness regulation meets the requirement that people use, so as to Reduce energy consumption, using electricity wisely.
To achieve these goals, the present invention uses following technical solution:
The present invention provides a kind of energy-saving controller for street lamp, the environmental monitoring being connected including processor module and with processor module Module, control output module, clock module, street lamp detection module, memory module, communication module and power module;The environment Monitoring modular includes body induction circuit and photoinduction circuit;The communication module includes wired communicating circuit or wireless telecommunications Circuit;The control output module includes power supply circuit, PWM pulse-width modulation circuits and friendship-straight modular converter.
Further, the power supply circuit of the control output module includes relay, and one end connection of relay coil is protected Protect the anode of diode, the cathode of the other end connection protection diode of relay coil, the cathode and relay of protection diode The other end junction of device coil connects DC power supply, anode and the relay coil one end junction of protection diode by circuit It is connected by circuit with one collector of NPN triode, one emitter of NPN triode ground connection, one base stage of NPN triode passes through resistance 12 are connected with processor module, and resistance 11 is connected between one emitter of NPN triode and base stage, and relay is normally closed to be touched The output of one end link road lamp detection module of point, the other end are connected with the input terminal of friendship-straight modular converter;The PWM pulsewidths Modulation circuit includes NPN triode two, and two emitter of NPN triode ground connection, two base stage of NPN triode is by resistance eight and processing Device module connects, and two collector of NPN triode connects DC power supply by resistance nine, resistance ten, between resistance nine and resistance ten Lead line connects the input terminal of friendship-straight modular converter, and the output terminal of friendship-straight modular converter is connected with street lamp.
Further, the photoinduction circuit uses the optical sensor being connected with processor module.
Further, the body induction circuit uses the Thermoelectric Infrared Sensor being connected with processor module.
Further, the street lamp detection module uses alternating current detection chip, input terminal and the city's electric wire of the chip Road connects, and output terminal is connected respectively with control output module and processor module.
Further, the power module output direct current 12V, direct current 5V and working power VCC.
Further, the clock module includes PCF8563 chips and the crystal oscillator that is connected with PCF8563 chips and spare Power supply.
The present invention also provides a kind of road lamp energy-saving control method, this method includes:
The preset 1 year daily switch lamp time HMS for the cycle in the memory module of controller, processor module is according to clock mould Whether the time of block perpetual calendar, automatic comparison adjustment power supply export switch motion;
Controller sets multiple brightness regulation periods n and luminance parameter l, power supply with luminance parameter control on a time period defeated Go out, realize energy saving brightness regulation control;
When in environment monitoring module body induction circuit output signal it is effective, keep the period brightness and by communication module link Controller near people keeps the brightness of the period to export, if beyond the delay time T of setting, lowers output luminance parameter M%, the linkage priority level are controlled higher than perpetual calendar;
Photoinduction circuit is into the coordinated signals of portable lighter, and the output of opening power supply, is opened bright when light sensation output reaches photoinduction index X1 Degree meets the preset requirement of controller noted above;Power supply output is closed when light sensation output reaches photoinduction index X2, the linkage is excellent First it is superior to perpetual calendar control.
Further, the period n, luminance parameter l, daily switch lamp time HMS, delay time T, downward ratio m% And photoinduction index is by communication serial ports instruction modification.
Compared with prior art, the present invention has the following advantages:
1st, a kind of energy-saving controller for street lamp of the invention is simple in structure, novel in design, scientific and reasonable, maintenance is simple, easy to implement, Clock module and communication module are provided with, street lamp can be monitored in real time, and remote control is carried out to street lamp;Street lamp detection module can It is detected with the working power to street lamp, it is ensured that street lamp can meet the needs of actual illumination;It, can by environment monitoring module Preferentially to meet the use demand of people, make street lamp more hommization.
2nd, a kind of road lamp energy-saving control method of the present invention sets the brightness ginseng in road lamp switch time and multiple periods Number, street lamp use intensity is reduced by brightness regulation, extends the service life of street lamp, is reduced energy consumption, has been reached energy saving Effect.
3rd, controller is additionally provided with communication interface, by way of wired and Wireless Networking, facilitates to street lamp energy consumption Manage and reduce the administration fee to road lamp maintenance.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.
Fig. 1 is a kind of structure diagram of energy-saving controller for street lamp of the present invention;
Fig. 2 is the processor module schematic diagram of the present invention;
Fig. 3 is the environment monitoring module schematic diagram of the present invention;
Fig. 4 is the control output module schematic diagram of the present invention;
Fig. 5 is the street lamp detection module schematic diagram of the present invention;
Fig. 6 is the memory module schematic diagram of the present invention;
Fig. 7 is the wire communication circuit diagram of the present invention;
Fig. 8 is the wireless communication line schematic diagram of the present invention;
Fig. 9 is the clock module schematic diagram of the present invention;
Figure 10 is the power module schematic diagram of the present invention.
Specific embodiment
The core of the present invention is to provide a kind of energy-saving controller for street lamp, simple in structure, novel in design, scientific and reasonable, maintenance Simply, the intelligent control to street lamp is realized;Another core of the present invention is to provide a kind of road lamp energy-saving control method, can realize The automatic switch of street lamp, brightness regulation meet the requirement that people use, so as to reduce energy consumption, using electricity wisely.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art All embodiments obtained without creative efforts, belong to the scope of protection of the invention.
As shown in Figure 1, the present embodiment provides a kind of energy-saving controller for street lamp, including processor module and and processor die Environment monitoring module, control output module, clock module, street lamp detection module, memory module, communication module and the electricity of block connection Source module;The environment monitoring module includes body induction circuit and photoinduction circuit;The communication module includes wire communication Circuit and wireless communication line;The control output module includes power supply circuit, PWM pulse-width modulation circuits and friendship-straight modulus of conversion Block.
Preferably, as shown in Fig. 5 and Fig. 2, the street lamp detection module uses alternating current detection chip U4, U4's 1 pin, 2 pins are connected with 220VAC lines, and 7 pins of U4 and the STM_IOUT pins of processor module connect, and the 8 of U4 Pin connects 5V DC power supplies, and 3 pins, 4 pins of U4 are connected with control output module AC220-L-ACS ends, and 6 pins of U4 pass through It is grounded after capacitance C1 and the connection of 5 pins.Street lamp detection module can be detected the working power of street lamp, it is ensured that street lamp can be with Meets the needs of actual illumination.
Preferably, as shown in fig. 4 and fig. 2, the power supply circuit of the control output module includes relay JDQ1, after The anode of one end connection protection diode D1 of electric appliance JDQ1 coils, the other end connection protection diode of relay JDQ1 coils The cathode of D1, the cathode of protection diode D1 pass through connection 12V DC with the other end junction of relay JDQ1 coils Power supply, anode and the relay JDQ1 coils one end junction of protection diode D1 pass through circuit and one Q1 current collections of NPN triode Pole connects, and one Q1 emitters of NPN triode ground connection, one Q1 base stages of NPN triode are by 12 R12 of resistance and processor module GPIO_OUT pins connect, and resistance 11 R11, relay JDQ1 are connected between one Q1 emitters of NPN triode and base stage 3 pins and 4 pins of the AC220-L-ACS ends connection U4 of normally-closed contact, AC220-L-OUT ends and the 1 of friendship-straight modular converter U7 Pin connects;The PWM pulse-width modulation circuits include two Q2 of NPN triode, two Q2 emitters of NPN triode ground connection, tri- poles of NPN Two Q2 base stages of pipe are connected by the STM_PWM pins of eight R8 of resistance and processor module, and two Q2 collectors of NPN triode are by electricity Hinder nine R9, ten R10 of resistance connects 12V DC power supply, lead line connects friendship-straight modulus of conversion between ten R10 of nine R9 of resistance and resistance 4 pins of block U7,3 pins, 5 pins of friendship-straight modular converter U7 are connected with street lamp, and 2 pins of U7 connect alternating current zero curve.Power supply electricity Road provides 220V alternating currents for friendship-straight modular converter, and 220V alternating currents are converted to street lamp actual needs by friendship-straight modular converter DC power supply, wherein PWM pulse-width modulation circuits can adjust the brightness of street lamp using the width of pulse.
As shown in Fig. 3 and Fig. 2, the photoinduction circuit uses the optical sensor being connected with processor module, the light sensing The LIGHT_OUT pins of device and the LIGHT_OUT pins of processor module connect.The optical sensor is used to detect ambient light feelings Condition.The body induction circuit uses the Thermoelectric Infrared Sensor being connected with processor module, which passes The PIR_OUT pins of sensor and the PIR_OUT pins of processor module connect.The Thermoelectric Infrared Sensor is used to sense people Body activity.
As shown in Fig. 6 and Fig. 2, STM_EE_WP pins, STM_12C_SCL pins, the STM_12C_ of the memory module SDL pins are connected respectively with the STM_EE_WP pins, STM_12C_SCL pins, STM_12C_SDL pins of processor module.
As shown in Fig. 7 and Fig. 2, the UART_RX pins of the wire communication circuit, UART_TX pins respectively with processor The UART_RX pins of module, the connection of UART_TX pins.
As shown in Fig. 8 and Fig. 2, the SDN pins of the wireless communication line, NIRO pins, NSEL pins, SCLK pins, SDI pins, SDO pins respectively with the SDN pins of processor module, NIRO pins, NSEL pins, SCLK pins, SDI pins, SDO pins connect.
As shown in Fig. 9 and Fig. 2, the clock module includes PCF8563 chips U8 and is connected with PCF8563 chips U8 Crystal oscillator and stand-by power supply, the PSCL pins of PCF8563 chips U8, PSDA pins respectively with the PSCL pins of processor module, PSDA pins connect.
As shown in Figure 10, the power module exports direct current 12V, direct current 5V and working power VCC, in order to control each module of device Power supply is provided, terminal connects the input terminal AC220-L and AC220-N of power module.
The controller architecture is simple, it is novel in design, scientific and reasonable, safeguard it is simple, easy to implement, be provided with clock module and Communication module can monitor street lamp in real time, and carry out remote control to street lamp.
The present embodiment also provides a kind of road lamp energy-saving control method, and this method includes:
The preset 1 year daily switch lamp time HMS for the cycle in the memory module of controller, processor module is according to clock mould Whether the time of block perpetual calendar, automatic comparison adjustment power supply export switch motion;
Controller sets multiple brightness regulation periods n and luminance parameter l, power supply with luminance parameter control on a time period defeated Go out, realize energy saving brightness regulation control;
When in environment monitoring module body induction circuit output signal it is effective, keep the period brightness and by communication module link Controller near people keeps the brightness of the period to export, if beyond the delay time T of setting, lowers output luminance parameter M%, the linkage priority level are controlled higher than perpetual calendar;When having pedestrian to pass through under night street lamp, the street lamp near pedestrian is lighted, If lamp goes out setting delay time after twenty minutes, pedestrians are waited by after twenty minutes, street lamp meeting automatic distinguishing is realized energy saving.
Photoinduction circuit is into the coordinated signals of portable lighter, and the output of opening power supply, beats when light sensation output reaches photoinduction index X1 Degree of turning on meets the preset requirement of controller noted above;Power supply output, the connection are closed when light sensation output reaches photoinduction index X2 Dynamic priority level is controlled higher than perpetual calendar.When running into rainy day, cloudy day or snowy day when weather, it is subduing, at this point, passing through Photoinduction circuit senses environmental change, and driving power lights street lamp, and pedestrian is illuminated, but the intensity illuminated will not surpass Cross the intensity of illumination for the period being previously set.
The period n, luminance parameter l, daily switch lamp time HMS, delay time T, downward ratio m% and light sensation Index is answered by communication serial ports instruction modification.
This method sets the luminance parameter in road lamp switch time and multiple periods, and road is reduced by brightness regulation Lamp use intensity extends the service life of street lamp, reduces energy consumption, has achieved the effect that energy saving.Also, environment monitoring module can Preferentially to meet the use demand of people, make street lamp more hommization.
It should be noted that in the present specification, term " comprising ", "comprising" or its any other variant are intended to Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that Also there are other identical elements in process, method, article or equipment including the element.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention. A variety of modifications to these embodiments are it will be apparent that as defined herein one for those skilled in the art As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein Widest range.

Claims (9)

  1. A kind of 1. energy-saving controller for street lamp, which is characterized in that the environment prison being connected including processor module and with processor module Survey module, control output module, clock module, street lamp detection module, memory module, communication module and power module;The ring Border monitoring modular includes body induction circuit and photoinduction circuit;The communication module includes wired communicating circuit or channel radio Interrogate circuit;The control output module includes power supply circuit, PWM pulse-width modulation circuits and friendship-straight modular converter.
  2. 2. energy-saving controller for street lamp according to claim 1, which is characterized in that the power supply circuit of the control output module Including relay, the anode of one end connection protection diode of relay coil, the other end connection protection two of relay coil The cathode of pole pipe, the cathode of protection diode and the other end junction of relay coil connect DC power supply by circuit, protection The anode of diode is connected with relay coil one end junction by circuit with one collector of NPN triode, NPN triode one Emitter is grounded, and one base stage of NPN triode is connected by resistance 12 with processor module, one emitter of NPN triode with Be connected with resistance 11 between base stage, the output of one end link road lamp detection module of relay normally closed contact, the other end with hand over- The input terminal connection of straight modular converter;The PWM pulse-width modulation circuits include NPN triode two, and two emitter of NPN triode connects Ground, two base stage of NPN triode are connected by resistance eight with processor module, and two collector of NPN triode is by resistance nine, resistance Ten connect DC power supply, and lead line connects the input terminal of friendship-straight modular converter, friendship-straight modulus of conversion between resistance nine and resistance ten The output terminal of block is connected with street lamp.
  3. 3. energy-saving controller for street lamp according to claim 1, which is characterized in that the photoinduction circuit uses and processor The optical sensor of module connection.
  4. 4. energy-saving controller for street lamp according to claim 1, which is characterized in that the body induction circuit uses and processing The Thermoelectric Infrared Sensor of device module connection.
  5. 5. energy-saving controller for street lamp according to claim 1, which is characterized in that the street lamp detection module uses alternating current Detection chip is flowed, the input terminal of the chip is connected with line, and output terminal is respectively with controlling output module and processor module Connection.
  6. 6. energy-saving controller for street lamp according to claim 1, which is characterized in that power module output direct current 12V, straight Flow 5V and working power VCC.
  7. 7. energy-saving controller for street lamp according to claim 1, which is characterized in that the clock module includes PCF8563 cores Piece and the crystal oscillator and stand-by power supply being connected with PCF8563 chips.
  8. 8. a kind of control method based on claim 1 to 7 any one of them energy-saving controller for street lamp, which is characterized in that should Method includes:
    The preset 1 year daily switch lamp time HMS for the cycle in the memory module of controller, processor module is according to clock mould Whether the time of block perpetual calendar, automatic comparison adjustment power supply export switch motion;
    Controller sets multiple brightness regulation periods n and luminance parameter l, power supply with luminance parameter control on a time period defeated Go out, realize energy saving brightness regulation control;
    When in environment monitoring module body induction circuit output signal it is effective, keep the period brightness and by communication module link Controller near people keeps the brightness of the period to export, if beyond the delay time T of setting, lowers output luminance parameter M%, the linkage priority level are controlled higher than perpetual calendar;
    Photoinduction circuit is into the coordinated signals of portable lighter, and the output of opening power supply, is opened bright when light sensation output reaches photoinduction index X1 Degree meets the preset requirement of controller noted above;Power supply output is closed when light sensation output reaches photoinduction index X2, the linkage is excellent First it is superior to perpetual calendar control.
  9. 9. the road lamp energy-saving control method according to requiring 8 in group, which is characterized in that the period n, luminance parameter l, every Its switch lamp time HMS, delay time T, ratio m% and photoinduction index are lowered by communication serial ports instruction modification.
CN201711427756.4A 2017-12-26 2017-12-26 A kind of energy-saving controller for street lamp and control method Pending CN108124365A (en)

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Application Number Priority Date Filing Date Title
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CN110312351A (en) * 2019-06-15 2019-10-08 浙江志东照明科技有限公司 A kind of street lamp control system based on narrowband Internet of Things
CN110312351B (en) * 2019-06-15 2021-04-06 浙江志东照明科技有限公司 Street lamp control system based on narrowband thing networking

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