CN112020185A - Intelligent spike light control system based on LoRa and implementation method - Google Patents

Intelligent spike light control system based on LoRa and implementation method Download PDF

Info

Publication number
CN112020185A
CN112020185A CN202011159372.0A CN202011159372A CN112020185A CN 112020185 A CN112020185 A CN 112020185A CN 202011159372 A CN202011159372 A CN 202011159372A CN 112020185 A CN112020185 A CN 112020185A
Authority
CN
China
Prior art keywords
light
lora
unit
spike
emitting
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
CN202011159372.0A
Other languages
Chinese (zh)
Inventor
梁志平
朱超
成晟
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.)
Jiangsu Guangyu Technology Industry Development Co ltd
Original Assignee
Jiangsu Guangyu Technology Industry Development 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 Jiangsu Guangyu Technology Industry Development Co ltd filed Critical Jiangsu Guangyu Technology Industry Development Co ltd
Priority to CN202011159372.0A priority Critical patent/CN112020185A/en
Publication of CN112020185A publication Critical patent/CN112020185A/en
Pending legal-status Critical Current

Links

Images

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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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
    • 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)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention discloses an intelligent spike light control system based on LoRa and an implementation method thereof, wherein the intelligent spike light control system comprises a server, a LoRa gateway, a LoRa data transmission unit, an MCU control unit, a charging control unit, a light-emitting unit and a feedback unit; the LoRa data transmission unit: the method is used for carrying out low-power consumption long-distance data transmission with the LoRa gateway through the LoRa wireless technology. The intelligent spike light control system based on the LoRa and the implementation method thereof support wireless information transmission based on the LoRa, realize the wireless transmission function between the spike and the server under the design of low power consumption, can perform planned configuration on the working states of the spikes on a plurality of roads through the instruction of the server, guide people to drive in the correct direction under the severe environment, prevent overspeed and traffic accidents, can also monitor whether the work of the spike is normal in the control process, can feed back the position of the fault spike in real time, are convenient for people to maintain and bring better use prospect.

Description

Intelligent spike light control system based on LoRa and implementation method
Technical Field
The invention relates to the field of spike light control, in particular to an intelligent spike light control system based on LoRa and an implementation method.
Background
At present, the spike is widely applied to domestic high-grade highways and municipal roads, the spike is controlled by a simple solar circuit at the present stage, a control unit is not carried, the luminous state of the spike can only be changed by detecting external brightness, under the scheme, the spike has a single function, the fault cannot be timely found, and part of the spikes cannot be simultaneously lightened due to the sensitivity of components. Under special conditions, such as road construction enclosure and low daytime visibility, the working state of the spike can not be adjusted as required, so that resource waste, accidents and the like are caused easily;
at present, traditional spike function singleness, also can't in time discover in breaking down, external equipment can't control the operating condition of spike, does other shop's line work to the road when need be under construction though the operating condition control can be accomplished to some wired control products, and construction steps are loaded down with trivial details, influence the construction cycle, unsatisfied people's operation requirement, for this reason, we provide an intelligent spike light control system and implementation method based on loRa.
Disclosure of Invention
The invention mainly aims to provide an intelligent spike light control system based on LoRa and an implementation method thereof, which can effectively solve the problems in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
an intelligent spike light control system based on LoRa and an implementation method thereof are disclosed, wherein the intelligent spike light control system comprises a server, a LoRa gateway, a LoRa data transmission unit, an MCU control unit, a charging control unit, a light emitting unit and a feedback unit;
the LoRa data transmission unit: the data transmission system is used for carrying out low-power consumption long-distance data transmission with the LoRa gateway through the LoRa wireless technology;
the MCU control unit: the device is used for processing the information received by the LoRa data transmission unit and controlling the working state of the light-emitting unit through a level signal according to the information;
the charging control unit: the solar charging panel is used for adjusting the charging state of the solar charging panel;
the feedback unit: for feeding back the light-emitting state of the light-emitting unit and the position of the spike.
Preferably, the LoRa gateway performs data interaction with a core network or a wide area network through one or more of a TCP/IP protocol, a wired ethernet, 4G wireless transmission, and 5G wireless transmission.
Preferably, information interaction between the LoRa data transmission unit and the LoRa gateway and information between the LoRa gateway and the server are both integrity protected and data encrypted by a symmetric encryption algorithm AES with a length of 128 bits.
Preferably, the feedback unit comprises a detection unit and a GPS positioning module;
the detection unit: the MCU control unit is used for receiving the light-emitting data, judging the light-emitting state of the light-emitting unit and feeding back the detected light-emitting state data to the MCU control unit;
the GPS positioning module: and the control unit is used for feeding back the position data of the spike to the MCU control unit.
Preferably, the detection unit includes a photo resistor for monitoring a light emitting state of the light emitting unit, a voltage sensor for detecting an operating voltage of the light emitting unit, a current sensor for detecting an operating current of the light emitting unit, and a temperature sensor for monitoring an operating temperature of the light emitting unit.
Preferably, the implementation method of intelligent spike light control based on LoRa comprises the following steps:
firstly, setting a light-emitting mode of a spike through a server, and transmitting data to an MCU (microprogrammed control Unit) through an LoRa gateway and a LoRa data transmission unit;
and secondly, the MCU control unit controls the light-emitting unit to operate according to a light-emitting mode through a level signal.
Preferably, when the light-emitting mode is not set in the step (i), the charging control unit realizes that the spike automatically lights or flickers according to the external brightness, and the MCU control unit can control the working state of the light-emitting unit by monitoring the charging state of the battery when the light-emitting mode is set.
Preferably, the detection unit starts during the operation of the light-emitting unit in the step II, the light-emitting state of the light-emitting unit is monitored, the light-emitting state data is sent to the MCU control unit, the MCU control unit compares the light-emitting state data with a set light-emitting mode, whether the state of the spike is abnormal or not is judged, the MCU control unit receives positioning data of the GPS positioning module when the spike is abnormal, and the positioning data is fed back to the server through the LoRa gateway and the LoRa data transmission unit.
Compared with the prior art, the invention provides an intelligent spike light control system based on LoRa and an implementation method thereof, and the intelligent spike light control system has the following beneficial effects:
1. the invention supports wireless information transmission based on LoRa, realizes the wireless transmission function between the spikes and the server under the design of low power consumption, realizes the planned configuration of the working states of the spikes on a plurality of roads without influencing the endurance in non-charging time and by the instruction of the server, for example, the spikes are enabled to twinkle, normally light, a plurality of spikes form a running light, the daytime light is lightened, and the like, and the invention is arranged to guide people to run in the correct direction under the severe environment and prevent overspeed and traffic accidents;
the intelligent spike light control system based on LoRa and the implementation method thereof have the advantages that whether the operation of the spike is normal or not can be monitored in the control process, the fault spike can be easily found, the position of the fault spike can be fed back in real time, the maintenance of people is facilitated, the operation of the whole intelligent spike light control system based on LoRa and the implementation method are convenient, the use effect is better compared with that of the traditional mode, the use requirements of people are met, and the intelligent spike light control system based on LoRa and the implementation method are.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
Fig. 1 is a schematic view of the overall structure of an intelligent spike light control system based on LoRa according to the present invention.
In the figure: 1. a server; 2. an LoRa gateway; 3. a LoRa data transmission unit; 4. an MCU control unit; 5. a charging control unit; 6. a light emitting unit; 7. a detection unit; 8. and a GPS positioning module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
An intelligent spike light control system based on LoRa is shown in figure 1 and comprises a server 1, a LoRa gateway 2, a LoRa data transmission unit 3, an MCU control unit 4, a charging control unit 5, a light-emitting unit 6 and a feedback unit;
LoRa data transmission unit 3: the data transmission system is used for carrying out low-power consumption long-distance data transmission with the LoRa gateway 2 through the LoRa wireless technology;
the MCU control unit 4: the device is used for processing the information received by the LoRa data transmission unit 3 and controlling the working state of the light-emitting unit 6 through a level signal according to the information requirement;
the charging control unit 5: the solar charging panel is used for adjusting the charging state of the solar charging panel;
a feedback unit: for feeding back the light emitting state of the light emitting unit 6 and the position of the spike.
The LoRa gateway 2 performs data interaction with a core network or a wide area network through one or more of TCP/IP protocol, wired ethernet, 4G wireless transmission, and 5G wireless transmission.
Information interaction between the LoRa data transmission unit 3 and the LoRa gateway 2 and information between the LoRa gateway 2 and the server 1 are all integrity protected and data encrypted by a symmetric encryption algorithm AES with a length of 128 bits.
The feedback unit comprises a detection unit 7 and a GPS positioning module 8;
the detection unit 7: the MCU control unit 4 is used for receiving the light-emitting data, judging the light-emitting state of the light-emitting unit 6 and feeding back the detected light-emitting state data to the MCU control unit;
the GPS positioning module 8: for feeding back the position data of the spike to the MCU control unit 4.
The detection unit 7 includes a photo resistor for monitoring the light emitting state of the light emitting unit 6, a voltage sensor for detecting the operating voltage of the light emitting unit 6, a current sensor for detecting the operating current of the light emitting unit 6, and a temperature sensor for monitoring the operating temperature of the light emitting unit 6.
A method for realizing intelligent spike light control based on LoRa comprises the following steps:
firstly, setting a light-emitting mode of a spike through a server 1, and transmitting data to an MCU (microprogrammed control Unit) 4 through an LoRa gateway 2 and a LoRa data transmission unit 3;
when the light-emitting mode is not set, the charging control unit 5 realizes that the spike automatically lights or flickers normally according to the external brightness, the MCU control unit 4 can control the working state of the light-emitting unit 6 by monitoring the charging state of the battery when the light-emitting mode is set, and the priority level controlled by the MCU control unit 4 through a level signal is higher than the priority level passively controlled by the charging control unit 5.
The MCU control unit 4 controls the light-emitting unit 6 to operate according to a light-emitting mode through a level signal;
the detecting element 7 starts when luminescence unit 6 moves, monitor luminescence unit 6's luminous state, and send luminescence state data for MCU the control unit 4, MCU the control unit 4 compares luminescence state data with the luminous mode of settlement, judge whether the spike state is unusual, MCU the control unit 4 receives GPS orientation module 8's location data when unusual, and feed back the location data to server 1 through LoRa gateway 2 and LoRa data transmission unit 3.
The invention is an intelligent spike light control system and an implementation method based on LoRa, wherein in normal use, the light-emitting unit 6 realizes automatic constant lighting or flashing of a spike (for example, automatic constant lighting or flashing in dark ambient light) under the condition of the charging control unit 5 according to the ambient brightness;
during normal use, the MCU control unit 4 can also monitor the charging state of the battery, and control the working state of the light-emitting unit 6 through the charging state of the battery, for example, when the electric quantity of the battery is insufficient, the control system is dormant, the energy consumption is reduced, the normal work of the light-emitting system is ensured, and the wireless control of the spike is realized under the condition that the use duration is not influenced;
in severe environment, people can set a luminous state through the server 1, the server 1 transmits luminous state data to the MCU control unit 4 through the LoRa gateway 2 and the LoRa data transmission unit 3, the MCU control unit 4 controls the luminous unit 6 to emit light according to the set luminous state, and people are guided to drive in a correct direction in severe environment to prevent overspeed and traffic accidents;
the invention supports wireless information transmission based on LoRa, realizes the wireless transmission function between the spikes and the server 1 under the design of low power consumption, realizes the planned configuration of the working states of the spikes on a plurality of roads without influencing the endurance in non-charging time and by the instruction of the server 1, for example, the spikes are enabled to flash, normally light, the spikes form a running light, the daytime light is on, and the like, and the setting is carried out, so that people are guided to run in the correct direction under the severe environment, and the overspeed and traffic accident are prevented;
the intelligent spike light control system based on LoRa and the implementation method thereof have the advantages that whether the operation of the spike is normal or not can be monitored in the control process, the fault spike can be easily found, the position of the fault spike can be fed back in real time, the maintenance of people is facilitated, the operation of the whole intelligent spike light control system based on LoRa and the implementation method are convenient, the use effect is better compared with that of the traditional mode, the use requirements of people are met, and the intelligent spike light control system based on LoRa and the implementation method are.
The invention supports wireless information transmission based on LoRa, realizes the wireless transmission function between the spikes and the server 1 under the design of low power consumption, realizes the cruising without influencing non-charging time, and can carry out the planning configuration of the working states of the spikes on a plurality of roads through the instruction of the server 1, for example, the spikes can flash, be normally bright, form a running light by a plurality of spikes, be bright in the daytime and other functions, carry out the setting, guide people to run according to the correct direction under the severe environment, and prevent overspeed and traffic accident;
the intelligent spike light control system based on LoRa and the implementation method thereof have the advantages that whether the operation of the spike is normal or not can be monitored in the control process, the fault spike can be easily found, the position of the fault spike can be fed back in real time, the maintenance of people is facilitated, the operation of the whole intelligent spike light control system based on LoRa and the implementation method are convenient, the use effect is better compared with that of the traditional mode, the use requirements of people are met, and the intelligent spike light control system based on LoRa and the implementation method are.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides an intelligence spike light control system based on loRa which characterized in that: the system comprises a server (1), an LoRa gateway (2), an LoRa data transmission unit (3), an MCU control unit (4), a charging control unit (5), a light-emitting unit (6) and a feedback unit;
the LoRa data transmission unit (3): the low-power consumption long-distance data transmission is carried out between the LoRa gateway (2) and the LoRa gateway through a LoRa wireless technology;
the MCU control unit (4): the device is used for processing the information received by the LoRa data transmission unit (3) and controlling the working state of the light-emitting unit (6) through a level signal according to the information requirement;
the charging control unit (5): the solar charging panel is used for adjusting the charging state of the solar charging panel;
the feedback unit: used for feeding back the light-emitting state and the spike position of the light-emitting unit (6).
2. The LoRa-based intelligent spike light control system of claim 1, wherein: the LoRa gateway (2) performs data interaction with a core network or a wide area network through one or more of a TCP/IP protocol, a wired Ethernet, 4G wireless transmission and 5G wireless transmission.
3. The LoRa-based intelligent spike light control system of claim 1, wherein: information interaction between the LoRa data transmission unit (3) and the LoRa gateway (2) and information between the LoRa gateway (2) and the server (1) are both subjected to integrity protection and data encryption by adopting a symmetric encryption algorithm AES with the length of 128 bits.
4. The LoRa-based intelligent spike light control system of claim 1, wherein: the feedback unit comprises a detection unit (7) and a GPS positioning module (8);
the detection unit (7): the MCU control unit (4) is used for receiving the light-emitting data, judging the light-emitting state of the light-emitting unit (6) and feeding back the detected light-emitting state data to the MCU control unit;
the GPS positioning module (8): used for feeding back the position data of the spike to the MCU control unit (4).
5. The intelligent spike light control system based on LoRa according to claim 4, characterized in that: the detection unit (7) comprises a photoresistor for monitoring the light-emitting state of the light-emitting unit (6), a voltage sensor for detecting the working voltage of the light-emitting unit (6), a current sensor for detecting the working current of the light-emitting unit (6) and a temperature sensor for monitoring the working temperature of the light-emitting unit (6).
6. The utility model provides an intelligent spike light control's implementation method based on loRa which characterized in that: the method comprises the following steps:
firstly, setting a light-emitting mode of a spike through a server (1), and transmitting data to an MCU (microprogrammed control Unit) through an LoRa gateway (2) and a LoRa data transmission unit (3);
and the MCU control unit (4) controls the light-emitting unit (6) to operate according to a light-emitting mode through a level signal.
7. The method for realizing intelligent spike light control based on LoRa according to claim 6, wherein: when the light-emitting mode is not set in the step I, the charging control unit (5) realizes the automatic constant lighting or flashing of the spike according to the external brightness, and the MCU control unit (4) can control the working state of the light-emitting unit (6) by monitoring the charging state of the battery when the light-emitting mode is set.
8. The method for realizing intelligent spike light control based on LoRa according to claim 6, wherein: the detection unit (7) is started when the light-emitting unit (6) operates, the light-emitting state of the light-emitting unit (6) is monitored, the light-emitting state data are sent to the MCU control unit (4), the MCU control unit (4) compares the light-emitting state data with a set light-emitting mode, whether the state of the spike is abnormal or not is judged, the MCU control unit (4) receives positioning data of the GPS positioning module (8) when the spike is abnormal, and the positioning data are fed back to the server (1) through the LoRa gateway (2) and the LoRa data transmission unit (3).
CN202011159372.0A 2020-10-27 2020-10-27 Intelligent spike light control system based on LoRa and implementation method Pending CN112020185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011159372.0A CN112020185A (en) 2020-10-27 2020-10-27 Intelligent spike light control system based on LoRa and implementation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011159372.0A CN112020185A (en) 2020-10-27 2020-10-27 Intelligent spike light control system based on LoRa and implementation method

Publications (1)

Publication Number Publication Date
CN112020185A true CN112020185A (en) 2020-12-01

Family

ID=73527681

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011159372.0A Pending CN112020185A (en) 2020-10-27 2020-10-27 Intelligent spike light control system based on LoRa and implementation method

Country Status (1)

Country Link
CN (1) CN112020185A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113194431A (en) * 2021-04-29 2021-07-30 深圳市远达明反光器材有限公司 Spike control method and system
CN113186845A (en) * 2021-04-29 2021-07-30 深圳市远达明反光器材有限公司 Spike control method and system and spike

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113194431A (en) * 2021-04-29 2021-07-30 深圳市远达明反光器材有限公司 Spike control method and system
CN113186845A (en) * 2021-04-29 2021-07-30 深圳市远达明反光器材有限公司 Spike control method and system and spike

Similar Documents

Publication Publication Date Title
CN103024995B (en) Solar LED (Light-Emitting Diode) streetlamp control system and control method
CN106211471B (en) A kind of electric type solar street light intelligence control system of the lithium of energy-conservation
CN102858045B (en) The LED Lighting Control Assembly of tunnel traffic
CN112020185A (en) Intelligent spike light control system based on LoRa and implementation method
CN202396048U (en) Solar street lamp intelligent monitoring system based on Internet of things
CN101827470A (en) Street lamp wireless remote control system
CN208208092U (en) road traffic signal lamp system
CN102427651A (en) Internet of things LVD (Low Voltage Detector) road lamp urban illumination control system
CN103260306B (en) Intelligent fog lamp and Induction Control system thereof
KR20130142609A (en) Led street lamp controlling apparatus having functions of detecting and transfering complex information
CN111315086A (en) City wisdom street lamp control system based on thing networking
CN104955207A (en) Internet-of-things-based electrodeless-lamp urban lighting control system
CN108419343A (en) Solar street light monitoring system
CN104411074A (en) Solar street lamp device control system and control method thereof
CN208353666U (en) A kind of LED tunnel illumination system
CN204305423U (en) Solar street light apparatus control system
CN108551706A (en) A kind of LED tunnel illumination system
CN205491336U (en) Induced control system of intelligence fog lamp
CN104394623A (en) Intelligent streetlamp control method
CN201789661U (en) Remote cluster controlling device for individual solar street lamp
CN111163574A (en) All-weather state detection control system of intelligent street lamp controller
CN113966026B (en) Intelligent dimming lamp control method based on acceleration vibration sensing vehicle
CN107780346B (en) Traffic sign control method and device
CN109348594A (en) A kind of traffic light control system
CN201954437U (en) Self-induction solar street lamp system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20201201