CN113194566A - Control method of street lamp with projection function - Google Patents
Control method of street lamp with projection function Download PDFInfo
- Publication number
- CN113194566A CN113194566A CN202110443404.8A CN202110443404A CN113194566A CN 113194566 A CN113194566 A CN 113194566A CN 202110443404 A CN202110443404 A CN 202110443404A CN 113194566 A CN113194566 A CN 113194566A
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- projection
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/36—Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/375—Switched mode power supply [SMPS] using buck topology
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention relates to the technical field of street lamps, in particular to a control method of a street lamp with a projection function, which comprises the following control steps: after the street lamp body is powered on, the central control unit performs hardware initialization setting; the central control unit executes a timing judgment process at regular time, wherein the timing judgment process comprises the following steps: judging whether the street lamp body is disconnected with the control platform or not; if the central control unit is disconnected with the control platform, a reconnection step is executed; when the control platform sends a control instruction to the street lamp body, the central control unit analyzes the control instruction and extracts instruction information, correspondingly drives the illumination unit and the projection unit to execute according to the instruction information, and feeds back an execution result to the control platform through the communication unit; and then checking whether the execution result is correctly fed back to the control platform. The invention can remotely control the street lamp.
Description
Technical Field
The invention relates to the technical field of street lamps, in particular to a control method of a street lamp with a projection function.
Background
The existing street lamp has the characteristics of diversity, attractiveness, beautifying and environment decoration, is mainly applied to outdoor illumination of public places such as urban lanes, residential districts, tourist attractions, parks, squares and the like, can prolong the outdoor activity time of people, and improves the property safety. However, with the development of society, street lamps exist on roads of cities and villages and towns basically, and the single lighting function cannot meet the increasingly rich living needs and business needs of people.
Disclosure of Invention
The invention aims to overcome the defects and provide a control method of a street lamp with a projection function, which can realize the projection function and can remotely control a projection unit and a lighting unit.
In order to achieve the purpose, the invention adopts the following specific scheme: a control method of a street lamp with a projection function comprises a street lamp body and a control platform; the street lamp body comprises a central control unit, a communication unit, a lighting unit for lighting and a projection unit for projection; the communication unit, the lighting unit and the projection unit are all electrically connected with the central control unit; the method also comprises the following control steps: after the street lamp body is powered on, the central control unit performs hardware initialization setting; the central control unit executes a timing judgment process at regular time, wherein the timing judgment process comprises the following steps: judging whether the street lamp body is disconnected with the control platform or not; if the central control unit is disconnected with the control platform, a reconnection step is executed; when the control platform sends a control instruction to the street lamp body, the central control unit analyzes the control instruction and extracts instruction information, correspondingly drives the illumination unit and the projection unit to execute according to the instruction information, and feeds back an execution result to the control platform through the communication unit; and then checking whether the execution result is correctly fed back to the control platform.
The invention is further set that when the central control unit needs to regularly judge whether the street lamp body is disconnected with the control platform, the central control unit marks that the street lamp body is in a connection interruption state; judging whether the street lamp body is disconnected with the control platform or not; and when the judgment timing judgment process is finished, clearing the connection interruption state mark.
The invention is further set that when the central control unit regularly judges whether the street lamp body is disconnected with the control platform, the running information of the street lamp body is collected at the same time, and whether unexecuted instruction information exists is judged; if the instruction information executed by the instruction information exists, the central control unit executes the corresponding movable lighting unit and the projection unit, and feeds back an execution result to the control platform through the communication unit.
The invention is further arranged that the reconnecting step comprises the steps of: the central control unit is repeatedly connected with the control platform through the communication unit, records the times of repeated connection failure, stops continuing to be connected with the control platform when the times of repeated connection failure are larger than a set value, and clears a connection interruption state mark until the next timing judgment process is started; when the number of times of repeated connection failure is smaller than a set value and the central control unit and the control platform are in a connection state again, clearing the number of times of repeated connection failure; and normally processes control instructions from the control platform.
The invention is further set that the instruction information of the control instruction sent by the control platform to the street lamp body comprises one or more of starting and stopping the lighting unit, adjusting the brightness of the lighting unit, changing the projection content of the projection unit, changing the projection angle of the projection unit, changing the brightness of the projection unit and obtaining the current running state of the street lamp body.
The invention is further set up in that the method for checking whether the feedback execution to the control platform is correct is as follows: and after the communication unit feeds back the execution result to the control platform, the communication unit waits for the feedback of the control platform, when the feedback from the control platform cannot be received within the set time, the central control unit sends feedback information to the control platform again and records the times of repeated sending, and when the times of repeated sending are greater than a set value, the communication unit stops continuously sending the feedback information to the control platform.
The invention is further provided that the street lamp body further comprises a rod body and a shell arranged on the rod body; the shell is provided with a power supply management unit, a central control unit, the lighting unit, the projection unit and the power supply management unit which are in communication connection with the central control unit; the projection unit is positioned at the bottom of the shell; the power management unit is provided with a surge protection module and a voltage reduction module; and the external mains supply supplies power to the central control unit after sequentially passing through the surge protection module and the voltage reduction module.
The invention has the beneficial effects that: through setting up logical central control unit and communication unit and adopting this control method, enable projection unit and outside control platform remote connection for the street lamp has the projection function, and it has extensive usage in a plurality of aspects such as beautify decoration, advertisement putting, policy propaganda, traffic guidance, street lamp overhaul.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
FIG. 1 is a flow chart of the operation of the street lamp of the present invention when the street lamp body is powered on;
FIG. 2 is a flow chart of the operation of the street lamp body of the present invention when receiving a control command from the control platform;
FIG. 3 is a flow chart of the operation of the street lamp body executing the timing judgment process according to the present invention;
FIG. 4 is a schematic structural view of the housing of the present invention;
FIG. 5 is a side view of the housing of the present invention;
FIG. 6 is a bottom view of the housing of the present invention;
FIG. 7 is a schematic circuit diagram of a power management unit;
fig. 8 is a schematic circuit diagram of the street lamp body.
Wherein: 1. a central control unit; 2. a lighting unit; 3. a projection unit; 4. a housing; 5. and a voltage reduction module.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
As shown in fig. 1 to 8, the control method of a street lamp with a projection function of the embodiment includes a street lamp body and a control platform; the street lamp body comprises a central control unit 1, a communication unit, a lighting unit 2 for lighting and a projection unit 3 for projection; the communication unit, the lighting unit 2 and the projection unit 3 are all electrically connected with the central control unit 1; the method also comprises the following control steps: after the street lamp body is powered on, the central control unit 1 performs hardware initialization setting; the central control unit 1 executes a timing determination process at regular time, the timing determination process being: judging whether the street lamp body is disconnected with the control platform or not; if the central control unit 1 is disconnected with the control platform, a reconnection step is executed; when the control platform sends a control instruction to the street lamp body, the central control unit 1 analyzes the control instruction and extracts instruction information, correspondingly drives the illumination unit 2 and the projection unit 3 to execute according to the instruction information, and feeds back an execution result to the control platform through the communication unit; and then checking whether the execution result is correctly fed back to the control platform.
Specifically, the control platform may be a background server; meanwhile, a control terminal can be arranged for workers to check the working state of the street lamp body at any time, and the terminal equipment is a computer or a mobile phone and other mobile terminals.
Through setting up the timing and judging the flow, can in time detect out whether current central control unit 1 and control platform disconnection, in time make the two reconnect, be convenient for to central control unit 1's management and control. After the central control unit 1 receives the instruction from the control platform, the corresponding instruction is executed, and the execution result can be fed back to the control platform in time, so that the equipment information in the control platform can be synchronized with the information of the central control unit 1, and the problem of asymmetric information of both parties is avoided. In order to further ensure the information synchronization, the central control unit 1 also checks whether the execution result is correctly fed back to the control platform.
The invention is further set that when the central control unit 1 needs to regularly judge whether the street lamp body is disconnected with the control platform, the central control unit marks that the street lamp body is in a connection interruption state; judging whether the street lamp body is disconnected with the control platform or not; and when the judgment timing judgment process is finished, clearing the connection interruption state mark.
Adopt the mode of mark can be clear make central control unit 1 judge current operating condition, be favorable to central control unit 1 whole regulation and control work flow simultaneously, avoid when the street lamp receives a plurality of instructions simultaneously, confuse between a plurality of instructions. Specifically, a flag may be set for each workflow, for example, when the central control executes the timing determination process, the flag is in a connection timing determination interrupt state at this time, and when the streetlamp body receives an instruction from the control platform and correspondingly drives the lighting unit 2 or the projection unit 3 to execute the instruction, the flag may be in a lighting execution interrupt state and a projection execution interrupt state at this time; preferably, priority may be set among the plurality of interrupt flags, and instructions with a high interrupt flag level may be preferentially executed.
The invention is further set that when the central control unit 1 regularly judges whether the street lamp body is disconnected with the control platform, the running information of the street lamp body is collected at the same time, and whether unexecuted instruction information exists is judged; if the instruction information executed by the instruction information exists, the central control unit 1 is executed corresponding to the movable lighting unit 2 and the projection unit 3, and the execution result is fed back to the control platform through the communication unit.
The above arrangement facilitates further synchronization of the information of both sides of the central control unit 1 and the control platform.
The invention is further arranged that the reconnecting step comprises the steps of: the central control unit 1 is repeatedly connected with the control platform through the communication unit, records the times of repeated connection failure, stops continuing to be connected with the control platform when the times of repeated connection failure are larger than a set value, and clears a connection interruption state mark until the next timing judgment process is started; when the number of times of repeated connection failure is smaller than a set value and the central control unit 1 and the control platform are in a connection state again, clearing the number of times of repeated connection failure; and normally processes control instructions from the control platform.
The setting value is used for avoiding the central control unit 1 from being in a repeated connection state all the time, and the power consumption is reduced.
The invention is further set that the instruction information of the control instruction sent by the control platform to the street lamp body comprises one or more of starting and stopping the lighting unit 2, adjusting the brightness of the lighting unit 2, changing the projection content of the projection unit 3, changing the projection angle of the projection unit 3, changing the brightness of the projection unit 3 and obtaining the current running state of the street lamp body.
The invention is further set up in that the method for checking whether the feedback execution to the control platform is correct is as follows: after the communication unit feeds back the execution result to the control platform, the communication unit waits for the feedback of the control platform, when the feedback from the control platform cannot be received within the set time, the central control unit 1 sends the feedback information to the control platform again, records the times of repeated sending, and stops continuously sending the feedback information to the control platform when the times of repeated sending are greater than the set value.
The setting value is used for avoiding the central control unit 1 from being in a repeated feedback state all the time, and the power consumption is reduced.
The invention is further arranged that the street lamp body further comprises a rod body and a shell 4 arranged on the rod body (not shown in the figure); the shell 4 is provided with a power supply management unit, a central control unit 1, the lighting unit 2, a projection unit 3 and a power supply management unit which are all in communication connection with the central control unit 1; the projection unit 3 is positioned at the bottom of the shell 4; the power management unit is provided with a surge protection module and a voltage reduction module 5; and the external mains supply is supplied to the central control unit 1 after passing through the surge protection module and the voltage reduction module 5 in sequence.
Specifically, the central control unit 1 may be a common processor such as a single chip microcomputer in the market, and the structure thereof is not limited, and the functions of data receiving, transmitting and processing may be realized. The lighting unit 2 may be a common LED unit for realizing the lighting function of the street lamp. The power management unit is used for converting commercial power into voltage and current required by other units, and normal work of the street lamp is guaranteed. The central control unit 1 is electrically connected with the communication unit and the projection unit 3 respectively and is used for processing a control instruction issued by the control platform and feeding back street lamp operation information; preferably, the street lamp monitoring system further comprises a detection unit, wherein the detection unit is used for acquiring the running information of the street lamp, including the voltage, the current and the power of the street lamp, the running states of the lighting unit 2 and the projection unit 3, and a plurality of abnormal application parameters of faults;
the projection unit 3 is used for projecting text, pictures or animation contents issued by the control platform; by arranging the central control unit 1 and the communication unit (not shown in the figure), the projection unit 3 can be remotely connected with an external control platform, after the central control unit 1 receives an instruction sent by the external control platform, the instruction is analyzed and sent to the projection unit 3, and the projection unit 3 correspondingly realizes the effects of switching, changing projection content, adjusting a projection angle, a projection range, projection brightness and the like.
The communication unit can be a wireless communication unit which can realize wireless receiving and sending, such as a WIFI unit, a 4G unit, a 5G unit, a Bluetooth unit and the like, and can also be a wired communication unit which adopts a wired communication mode, such as an Ethernet unit and the like, and is used for communicating the street lamp with an external control platform, receiving a control instruction sent by the control platform and sending running information of the street lamp fed back by the central control unit 1 from the street lamp; preferably, the communication unit is in a wireless transmission mode, wiring of a lamp pole is reduced, installation procedures are simplified, and construction cost is reduced.
According to the control method of the street lamp with the projection function, the surge protection module comprises a live wire interface, a zero wire interface, a primary anti-surge circuit, a secondary anti-surge circuit, a rectifier bridge BR and a filter capacitor C3; the primary anti-surge circuit comprises a voltage dependent resistor MOV 2; the secondary anti-surge circuit comprises a TVS tube D1; two ends of the piezoresistor MOV2 are respectively and electrically connected with the live wire interface and the zero wire interface; two ends of the TVS tube D1 are respectively and electrically connected with the live wire interface and the zero wire interface; the live wire interface and the zero line interface are electrically connected with the input end of the rectifier bridge BR; the output end of the rectifier bridge BR is electrically connected with the voltage reduction module 5 after passing through a filter capacitor C3.
The surge in the circuit is usually caused by the switching of the lightning and power supply system (especially with heavy inductive load) in the nature, the generation of the surge will bring about the transient overvoltage or overcurrent with huge energy, which is easy to damage the circuit, and the maintenance work is troublesome due to the high position and large quantity of the street lamp, so the circuit of the street lamp is necessary to be protected. The rectifier bridge BR can convert alternating current from mains supply into direct current available for a street lamp, and signals in the circuit can be filtered by arranging the filter capacitor C1. When the current and voltage in the circuit are stable, the voltage dependent resistor MOV2 and the TVS tube are both in a high-resistance state, the circuit is not conducted, and therefore the commercial power works normally. When instantaneous large voltage or large current appears in the circuit, the resistance of the voltage dependent resistor MOV2 drops sharply, and the TVS tube is broken down, so that the large voltage or the large current is led to a zero line, and the influence of surge voltage current on a rear circuit is prevented.
In the control method of the street lamp with the projection function of the embodiment, the primary anti-surge module further includes a varistor MOV1 and a varistor MOV 3; the surge protection module also comprises a ground wire interface; two ends of the piezoresistor MOV1 are respectively and electrically connected with the live wire interface and the ground interface; and two ends of the piezoresistor MOV3 are respectively and electrically connected with the zero line interface and the ground wire interface.
The anti-surge and anti-overvoltage effect can be further improved by the aid of the arrangement.
In the control method of the street lamp with the projection function of the embodiment, the surge protection module further includes a filter capacitor C1; and two ends of the filter capacitor C1 are respectively and electrically connected with the live wire interface and the zero wire interface.
In the control method of the street lamp with the projection function of the embodiment, the ground wire interface is electrically connected with one end of the varistor MOV1 after passing through the gas discharge tube GD 1.
After the voltage dependent resistor is used for a break time, the working performance is reduced and unstable, the gas discharge tube GD1 is arranged, the gas discharge tube is generally placed at the input end of a circuit and can bear large surge current, and the gas discharge tube GD1 is matched with the voltage dependent resistor MOV1, the voltage dependent resistor MOV2 and the voltage dependent resistor MOV3, so that better and more stable surge protection effect can be realized.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.
Claims (7)
1. A control method of a street lamp with a projection function is characterized in that:
the street lamp comprises a street lamp body and a control platform; the street lamp body comprises a central control unit, a communication unit, a lighting unit for lighting and a projection unit for projection; the communication unit, the lighting unit and the projection unit are all electrically connected with the central control unit;
the method also comprises the following control steps:
after the street lamp body is powered on, the central control unit performs hardware initialization setting;
the central control unit executes a timing judgment process at regular time, wherein the timing judgment process comprises the following steps: judging whether the street lamp body is disconnected with the control platform or not; if the central control unit is disconnected with the control platform, a reconnection step is executed;
when the control platform sends a control instruction to the street lamp body, the central control unit analyzes the control instruction and extracts instruction information, correspondingly drives the illumination unit and the projection unit to execute according to the instruction information, and feeds back an execution result to the control platform through the communication unit; and then checking whether the execution result is correctly fed back to the control platform.
2. The control method of the street lamp with the projection function as claimed in claim 1, wherein: when the central control unit needs to regularly judge whether the street lamp body is disconnected with the control platform, marking the street lamp body in a connection interruption state; judging whether the street lamp body is disconnected with the control platform or not; and when the judgment timing judgment process is finished, clearing the connection interruption state mark.
3. The method for controlling the street lamp with the projection function according to any one of claims 1 or 2, wherein: when the central control unit regularly judges whether the street lamp body is disconnected with the control platform, the central control unit simultaneously collects the operation information of the street lamp body and judges whether unexecuted instruction information exists; if the instruction information executed by the instruction information exists, the central control unit executes the corresponding movable lighting unit and the projection unit, and feeds back an execution result to the control platform through the communication unit.
4. The control method of the street lamp with the projection function as claimed in claim 2, wherein: the reconnection step comprises the following steps: the central control unit is repeatedly connected with the control platform through the communication unit, records the times of repeated connection failure, stops continuing to be connected with the control platform when the times of repeated connection failure are larger than a set value, and clears a connection interruption state mark until the next timing judgment process is started; when the number of times of repeated connection failure is smaller than a set value and the central control unit and the control platform are in a connection state again, clearing the number of times of repeated connection failure; and normally processes control instructions from the control platform.
5. The control method of the street lamp with the projection function as claimed in claim 1, wherein: the instruction information of the control platform for sending the control instruction to the street lamp body comprises one or more of starting and stopping the lighting unit, adjusting the brightness of the lighting unit, changing the projection content of the projection unit, changing the projection angle of the projection unit, changing the brightness of the projection unit and acquiring the current running state of the street lamp body.
6. The control method of the street lamp with the projection function as claimed in claim 1, wherein: then, the method for checking whether the feedback execution to the control platform is correct is as follows: and after the communication unit feeds back the execution result to the control platform, the communication unit waits for the feedback of the control platform, when the feedback from the control platform cannot be received within the set time, the central control unit sends feedback information to the control platform again and records the times of repeated sending, and when the times of repeated sending are greater than a set value, the communication unit stops continuously sending the feedback information to the control platform.
7. The control method of the street lamp with the projection function as claimed in claim 1, wherein: the street lamp body also comprises a rod body and a shell arranged on the rod body;
the shell is provided with a power supply management unit, a central control unit, the lighting unit, the projection unit and the power supply management unit which are in communication connection with the central control unit; the projection unit is positioned at the bottom of the shell; the power management unit is provided with a surge protection module and a voltage reduction module; and the external mains supply supplies power to the central control unit after sequentially passing through the surge protection module and the voltage reduction module.
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| CN107940361A (en) * | 2017-12-21 | 2018-04-20 | 云南聚诚科技有限公司 | A kind of LED projectables formula street lamp with remote control |
| CN207599574U (en) * | 2017-12-22 | 2018-07-10 | 云南聚诚科技有限公司 | A kind of Multifunctional projecting LED street lamp |
| CN109630989A (en) * | 2018-12-27 | 2019-04-16 | 深圳市德帮能源科技有限公司 | A kind of road lamp intelligent control method |
| CN212644421U (en) * | 2020-08-17 | 2021-03-02 | 上海三思电子工程有限公司 | Array projection intelligent street lamp and system thereof |
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