CN111295025B - Energy-saving city wisdom street lamp adopting LoRa technology - Google Patents
Energy-saving city wisdom street lamp adopting LoRa technology Download PDFInfo
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- CN111295025B CN111295025B CN202010154311.9A CN202010154311A CN111295025B CN 111295025 B CN111295025 B CN 111295025B CN 202010154311 A CN202010154311 A CN 202010154311A CN 111295025 B CN111295025 B CN 111295025B
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Abstract
The invention discloses an energy-saving urban intelligent street lamp adopting an LoRa technology, which comprises an LoRa system, a central control system, a sensor detection module, a data acquisition module, a user system, an intelligent street lamp control system and an intelligent street lamp, wherein the sensor detection module, the central control system, the user system and the intelligent street lamp control system are all connected with the LoRa system, the output end of the data acquisition module is connected with the input end of the sensor detection module, the output end of the sensor detection module is connected with the input end of the central control system through the LoRa system, the output end of the central control system is connected with the input end of the intelligent street lamp control system through the LoRa system, the user system is connected with the central control system through the LoRa system, and the intelligent street lamp control system is connected with the intelligent street lamp, so that the energy is saved, the communication distance is greatly improved, and the network operation capacity is stronger, the anti-interference capability is stronger.
Description
Technical Field
The invention relates to the technical field of intelligent street lamps, in particular to an energy-saving urban intelligent street lamp adopting a LoRa technology.
Background
The intelligent street lamp is a street lamp which realizes remote centralized control and management of the street lamp by applying an advanced, efficient and reliable power line carrier communication technology, a wireless GPRS/CDMA communication technology and the like, and the intelligent street lamp has the functions of automatically adjusting brightness according to traffic flow, controlling remote illumination, actively alarming faults, preventing theft of lamp cables, remotely reading meters and the like, so that power resources can be greatly saved, the management level of public illumination is improved, and the maintenance cost is saved. The street lamp is an indispensable basic public facility in daily life of people, along with the rapid development of economy, the increase of road load, road safety arouses more and more attention of people, the rapid development of road lighting in cities, and corresponding power consumption also climbs greatly. On the other hand, with the development of cities, part of the marine oil landscape lighting in urban public lighting is an extra part of power consumption although the cities can be more beautiful. At present, the urban lighting system adopts a traditional light-operated or time-controlled control mode, operates overnight and illuminates with constant illumination intensity, is not only disconnected from actual road condition information, but also wastes electric energy, and brings inconvenience to management and maintenance. A GTiBee technology-based intelligent lighting street lamp efficient energy-saving management system and a GTiBee technology-based intelligent lighting street lamp efficient energy-saving management method are disclosed in a patent document with the patent number of CN201510366763.2, a server and a street lamp monitoring terminal are connected by utilizing a wireless sensor network communication technology, integrated monitoring of all parameters of a street lamp is achieved, fine management of street lamp energy consumption and pre-diagnosis of street lamp faults are achieved, and low-cost and high-reliability centralized management of an urban street lamp system is achieved.
The patent document can realize networking communication of all infrastructures near the street lamp, can greatly improve the refinement degree of city management, and improve the city safety management level;
on the other hand, when the traffic is less in suburb junction or suburb area or late afternoon, if the lamp is still on all night, the lamp is wasted, thereby wasting electric energy, and some cities adopt a mode of closing the street lamps in an adjacent staggered way, but the illumination brightness of the road surface is insufficient, the visibility of the road vehicles is reduced, so that the safety is reduced, or the road vehicles are closed in the latter night, although the mode saves the electric energy, the safety of the road is also reduced, and a more intelligent street lamp control mode is hoped to be provided for controlling the street lamp, the lighting device can ensure the necessary lighting of vehicles on the road to ensure enough lighting brightness and visibility, can save electric energy, obviously has great importance in reducing light pollution, especially hopes to reduce carbon emission globally, and has very positive significance in protecting the earth.
In addition, many scientific and technical manufacturers in cisco, IBM, sumtech (Semtech), zhongxing, huashi and Microchip (Microchip) have established a LoRa alliance in the future, and will strive to popularize a new technology of wide area networking, LoRaWAN, that is, long-distance, bi-directional communication, low cost and low power consumption, to meet the design requirements of various M2M devices operating with battery power, and LoRa is a wireless technology, and is more easily operated with low power consumption long-distance communication based on the Sub-GHz frequency band, and can use battery power or other energy collection methods to supply power. Lower data rates also extend battery life and increase the capacity of the network. In addition, the LoRa signal also has strong penetrating power to the building. Besides being more suitable for low-cost large-scale deployment of the internet of things, the technical characteristics of the LoRa are that the LoRa has more advantages than the NB-IoT technology.
And at present, to how to provide a system operation efficient, data transmission is safe convenient more, realizes simultaneously that the energy-saving city wisdom street lamp of adoption loRa technique of wireless user control and setting lacks technical solution, and for this reason, this application provides the technical scheme of the energy-saving city wisdom street lamp of adoption loRa technique.
Disclosure of Invention
The technical task of the invention is to provide an energy-saving urban intelligent street lamp adopting the LoRa technology aiming at the defects.
The technical scheme of the invention is realized as follows:
an energy-saving city intelligent street lamp adopting LoRa technology comprises a LoRa system, a central control system, a sensor detection module, a data acquisition module, a user system, an intelligent street lamp control system and an intelligent street lamp, the sensor detection module, the central control system, the user system and the intelligent street lamp control system are all connected with the LoRa system, wherein the output end of the data acquisition module is connected with the input end of the sensor detection module, and the output end of the sensor detection module is connected with the input end of the central control system through a LoRa system, the output end of the central control system is connected with the input end of the intelligent street lamp control system through a LoRa system, user's system pass through the loRa system with central control system connects, just wisdom street lamp control system with wisdom street lamp connects.
Preferably, the loRa system comprises a network interface module, a power module, a main control chip and a radio frequency module, wherein the loRa system is connected with the data acquisition module through a loRa wireless network, the data acquisition module is connected with the central control system through a wired broadband network, and a control instruction sent by the central control system is sent to the control node through the loRa wireless network; the LoRa sensor detects automobile information and detects whether an automobile passes through the same-direction road, if so, the advancing speed of the automobile is further measured, and if not, the LoRa sensor continues to detect the automobile information;
according to the measured speed, generating the number of street lamps needing to be controlled to be switched on and switched off according to an algorithm of visibility corresponding to the corresponding speed of the automobile, and sequentially lighting the street lamps; when the speed exceeds the limit speed of the road section, the street lamp gives an alarm to the automobile, and when the speed does not exceed the limit speed, the automobile continues to move;
when the automobile passes through the road section, the street lamp is closed, otherwise, the traveling speed of the automobile is continuously measured.
The sensor detection part detects luminosity, temperature and humidity values of a street lamp environment and transmits measurement data to the central control system through the LoRa system, the central control system controls the intelligent street lamp system through the LoRa system to send control signals and receive feedback signals, and the user system is connected with the central control system through the LoRa system to achieve wireless control; wisdom street lamp control system control wisdom street lamp.
Preferably, the LoRa system includes a network interface module, a power module, a main control chip and a radio frequency module, wherein the LoRa system is connected with the data acquisition module through the LoRa wireless network, the data acquisition module is connected with the central control system through the wired broadband network, and the control instruction sent by the central control system is sent to the control node through the LoRa wireless network.
In the LoRa system, when the receiving flag bit is not completed, the data continues to be received; after the receiving of the zone bit is finished, judging the type of the data frame; if the data comes from the acquisition node, packaging the data, adding a frame head, a frame tail, a data length and a check bit, and then sending the data to a main control chip through a LoRa wireless network; and if the data comes from the main control chip, sending the data frame to the control node through the LoRa wireless network, deframing the data frame, removing the frame head, the frame tail, the data length and the check bit, and sending the data to the central control system through the network interface module.
Preferably, the LoRa system communication includes an uplink data frame, an uplink information frame, an uplink response frame, a downlink control instruction frame, a downlink configuration instruction frame, and a downlink response frame.
Preferably, the intelligent street lamp control system comprises a map positioning part, an energy consumption data statistics part, an equipment management part and an equipment node information editing part.
Preferably, the map positioning part comprises an online map and a user-defined map.
Preferably, the energy consumption data statistics part carries out intelligent data analysis on historical data of energy consumption metering, fault statistics, lighting rate statistics, lighting time statistics and incoming vehicle statistics of the street lamps.
Preferably, the equipment management part manages and maintains basic information of the street lamps, the lamp posts, the centralized controller, the node controllers and the sensing equipment.
In the user system, a user establishes a full information field of personal information by registering in a database to realize access and use of website services.
Preferably, the intelligent street lamp control system comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a diode D, a triode Q1, a triode Q2, a triode Q3 and a multi-emitter transistor T.
Preferably, a pin a1 of the central control system is connected to a resistor R1 and a pin A8 of the central control system, the other end of the resistor R1 is connected to one end of the resistor R2, a pin a2 of the central control system is connected to the positive electrode of the capacitor C1 and the pin A5 of the central control system, the negative electrode of the capacitor C1 is connected to the resistor R3 and one end of the capacitor C2, the central control system pin a4 and the collector of the transistor Q1 and are grounded, the other end of the capacitor C2 is connected to the pin A3 of the central control system, the pin A5 of the central control system is connected to the positive electrode of the capacitor C1 and one end of the resistor R3, the pin A6 of the central control system is grounded, and the pin 8 of the central control system is connected to the pin a1 of the central control system, the resistor R1, the resistor R5 and one end of the resistor R6, central control system pin A7 with resistance R4's one end is connected, resistance R4's the other end with triode Q1's primary junction, triode Q1's collecting electrode respectively with resistance R5's the other end diode D's negative pole and the one end of many emitting electrode transistor T is connected, the other termination power of many emitting electrode transistor T, diode D's positive pole with resistance R6's one end is connected, resistance R6's the other end respectively with resistance R5 with resistance R1 and central control system pin A1 the central control system pin A8 is connected and is connected the power.
Preferably, the main control chip pin a9 is connected to the capacitor C4, the capacitor C3, and the collector of the transistor Q3, the emitter of the transistor Q3 is connected to one end of the resistor R7 and connected to a power supply, the other end of the resistor R7 is connected to the base of the transistor Q3 and one end of the resistor R8, the other end of the resistor R8 is connected to the collector of the transistor Q2, the base of the transistor Q2 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to a power supply, the emitter of the transistor Q2 is grounded, the main control chip pin a10 is connected to the other ends of the capacitor C4 and C3 and one end of the capacitor C5 and the capacitor C6 and connected to a ground, and the other end of the capacitor C5 is connected to the main control chip pin a11 and the other end of the capacitor C6 and connected to a power supply.
Compared with the prior art, the invention has the advantages and positive effects that:
the LoRa system of the invention uses the linear spread spectrum modulation technology, while relatively saving electricity, can make the communication distance promote greatly, the operational capability of the network is stronger, the antijamming capability is stronger too, concentrator and gateway developed on the basis of this can receive and analyze the information solving many nodes at the same time, can hold more programs to run; the system has high operation efficiency and safer and more convenient data transmission.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is an overall flow diagram according to an embodiment of the invention;
fig. 2 is a block diagram of a LoRa system in accordance with an embodiment of the present invention;
FIG. 3 is a frame of an intelligent street light control system according to an embodiment of the invention;
FIG. 4 is a circuit diagram of an intelligent street lamp control system according to an embodiment of the invention;
fig. 5 is a street lamp control diagram of the intelligent street lamp control system according to the embodiment of the invention.
In the figure:
1. the LoRa system; 2. a central control system; 3. a sensor detection module; 4. a data acquisition module; 5. a user system; 6. an intelligent street lamp control system; 7. an intelligent street lamp; 8. a network interface module; 9. a power supply module; 10. a main control chip; 11. a radio frequency module; 12. a map positioning section; 13. an energy consumption data statistics part; 14. a device management section; 15. and a device node information editing section.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The invention is further described with reference to the following figures and specific examples.
In an embodiment, as shown in fig. 1 to 3, an energy-saving urban smart street lamp using a LoRa technology according to an embodiment of the present invention includes a LoRa system 1, a central control system 2, a sensor detection module 3, a data acquisition module 4, a user system 5, a smart street lamp control system 6, and a smart street lamp 7, where the sensor detection module 3, the central control system 2, the user system 5, and the smart street lamp control system 6 are all connected to the LoRa system 1, an output end of the data acquisition module 4 is connected to an input end of the sensor detection module 3, an output end of the sensor detection module 3 is connected to an input end of the central control system 2 through the LoRa system 1, an output end of the central control system 2 is connected to an input end of the smart street lamp control system 6 through the LoRa system 1, user system 5 through loRa system 1 with central control system 2 connects, just wisdom street lamp control system 6 with wisdom street lamp 7 is connected.
Furthermore, loRa system 1 includes network interface module 8, power module 9, main control chip 10 and radio frequency module 11, wherein, loRa system 1 pass through loRa wireless network with data collection module 4 connects, data collection module 4 through wired broadband network with central control system 2 connects, the control command that central control system 2 sent sends control node through loRa wireless network.
In addition, the LoRa system 1 communication includes an uplink data frame, an uplink information frame, an uplink response frame, a downlink control instruction frame, a downlink configuration instruction frame, and a downlink response frame.
Meanwhile, the intelligent street lamp control system 6 comprises a map positioning part 12, an energy consumption data statistics part 13, an equipment management part 14 and an equipment node information editing part 15, wherein the map positioning part 12 comprises an online map and a user-defined map, the energy consumption data statistics part 13 carries out intelligent data analysis on historical data of energy consumption measurement, fault statistics, lighting rate statistics, lighting time statistics and vehicle arrival statistics of street lamps, and the equipment management part 14 carries out management and maintenance on basic information of the street lamps, lamp poles, an integrated controller, a node controller and sensing equipment.
In a second embodiment, as shown in fig. 4, the intelligent streetlamp control system 6 includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a diode D, a transistor Q1, a transistor Q2, a transistor Q3, and a multi-emitter transistor T.
Further, a pin a1 of the central control system 2 is connected to a resistor R1 and a pin A8 of the central control system 2, the other end of the resistor R1 is connected to one end of the resistor R2, a pin a2 of the central control system 2 is connected to the positive electrode of the capacitor C1 and a pin A5 of the central control system 2, the negative electrode of the capacitor C1 is connected to one end of the resistor R3 and the capacitor C2, the pin a4 of the central control system 2 and the collector of the transistor Q1, the other end of the capacitor C2 is connected to a pin A3 of the central control system 2, a pin A5 of the central control system 2 is connected to the positive electrode of the capacitor C1 and one end of the resistor R3, a pin A6 of the central control system 2 is grounded, and a pin 8 of the central control system 2 is connected to a pin a1, A8 of the central control system 2, a1, a 3625 of the central, Resistance R1 resistance R5 with the one end of resistance R6 is connected, central control system 2 pin A7 with the one end of resistance R4 is connected, the other end of resistance R4 with triode Q1's base level is connected, triode Q1's collecting electrode respectively with resistance R5's the other end, diode D's negative pole and the one end of emitting electrode transistor T is connected, another termination power of emitting electrode transistor T, diode D's positive pole with the one end of resistance R6 is connected, resistance R6's the other end respectively with resistance R5 with resistance R1 and central control system 2 pin A1, central control system 2 pin A8 is connected and is connected the power.
Meanwhile, the pin a9 of the main control chip 10 is connected to the capacitor C4, the capacitor C3 and the collector of the transistor Q3, the emitter of the transistor Q3 is connected to and powered by one end of the resistor R7, the other end of the resistor R7 is connected to the base of the transistor Q3 and one end of the resistor R8, the other end of the resistor R8 is connected to the collector of the transistor Q2, the base of the transistor Q2 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to a power supply, the emitter of the transistor Q2 is grounded, the pin a10 of the main control chip 10 is connected to and grounded to the other ends of the capacitor C4 and the capacitor C3 and one ends of the capacitor C5 and the capacitor C6, and the other end of the capacitor 829c 5 is connected to and powered by the other ends of the pin a11 of the main control chip 10 and the capacitor C6.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the LoRa system 1 of the invention uses a linear spread spectrum modulation technology, saves electricity, greatly improves communication distance, has stronger network operation capability and stronger anti-interference capability, and a concentrator and a gateway developed on the basis can simultaneously receive and analyze information of a plurality of nodes and can contain more programs to operate; the system has high operating efficiency, the data transmission is safer and more convenient, in addition, 16 street lamps under the same moving object detector select different communication addresses, and one street lamp is arranged every 50m, so that the aim of indirect communication is fulfilled, and the effects of sequentially lightening and dimming the street lamps are realized; the user system simultaneously realizes the control and the setting of the wireless user, and has strong creativity.
The street lamp control working schematic diagram of the application is shown in fig. 5, a LoRa sensor detects automobile information and detects whether an automobile passes through the same-direction road, if so, the advancing speed of the automobile is further measured, and if not, the LoRa sensor continues to detect the automobile information;
according to the measured speed, generating the number of street lamps needing to be controlled to be switched on and switched off according to an algorithm of visibility corresponding to the corresponding speed of the automobile, and sequentially lighting the street lamps; when the speed exceeds the limit speed of the road section, the street lamp gives an alarm to the automobile, and when the speed does not exceed the limit speed, the automobile continues to move;
when the automobile passes through the road section, the street lamp is closed, otherwise, the traveling speed of the automobile is continuously measured;
the present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
Claims (1)
1. An energy-saving urban intelligent street lamp adopting an LoRa technology is characterized by comprising an LoRa system (1), a sensor detection module (3), a data acquisition module (4), a user system (5), an intelligent street lamp control system (6), a street lamp (7) and a central control system (2), wherein the sensor detection module (3), the user system (5) and the intelligent street lamp control system (6) are all connected with the LoRa system (1); the intelligent street lamp control system (6) comprises circuit elements;
the output end of the data acquisition module (4) is connected with the input end of the sensor detection module (3), the output end of the sensor detection module (3) is connected with the input end of the central control system (2) through the LoRa system (1), the output end of the central control system (2) is connected with the input end of the intelligent street lamp control system (6) through the LoRa system (1), the user system (5) is connected with the central control system (2) through the LoRa system (1), and the intelligent street lamp control system (6) is connected with the street lamp (7); the communication of the LoRa system (1) comprises an uplink data frame, an uplink information frame, an uplink response frame, a downlink control instruction frame, a downlink configuration instruction frame and a downlink response frame;
the LoRa system (1) comprises a network interface module (8), a power supply module (9), a main control chip (10), a LoRa sensor and a radio frequency module (11), wherein the LoRa system (1) is connected with the data acquisition module (4) through a LoRa wireless network, the data acquisition module (4) is connected with the central control system (2) through a wired broadband network, and a control instruction sent by the central control system (2) is sent to a control node through the LoRa wireless network; the LoRa sensors are arranged on the street lamps, adopt Doppler effect and directional sensing sensors, can measure the automobile running speed of a one-way road, and send data to the intelligent street lamp control system, so that the extinguishing speed and the brightness adjustment of the street lamps are controlled;
the LoRa sensor detects automobile information and detects whether an automobile passes through the same-direction road, if so, the advancing speed of the automobile is further measured, and if not, the LoRa sensor continues to detect the automobile information;
according to the measured speed, generating the number of street lamps needing to be controlled to be switched on and switched off according to an algorithm of visibility corresponding to the corresponding speed of the automobile, and sequentially lighting the street lamps;
when the speed exceeds the limit speed of the road section, the street lamp gives an alarm to the automobile, and when the speed does not exceed the limit speed, the automobile continues to move;
when the automobile passes through the road section, the street lamp is closed, otherwise, the traveling speed of the automobile is continuously measured;
the intelligent street lamp control system (6) further comprises an energy consumption data statistics part (13), and the energy consumption data statistics part (13) carries out intelligent data analysis on historical data of energy consumption metering, fault statistics, lighting rate statistics, lighting time statistics and incoming vehicle statistics of street lamps;
the intelligent street lamp control system (6) further comprises a map positioning part (12), an equipment management part (14) and an equipment node information editing part (15); the map positioning part (12) comprises an online map and a user-defined map; the equipment management part (14) manages and maintains basic information of street lamps, lamp posts, the centralized controller, the node controllers and the sensing equipment;
the circuit elements comprise a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a diode D, a triode Q1, a triode Q2, a triode Q3 and a multi-emitter transistor T;
the connection relationship between the central control system (2) and the circuit elements is as follows: a pin A1 of the central control system (2) is respectively connected with a resistor R1 and a pin A8 of the central control system (2), the other end of a resistor R1 is connected with one end of a resistor R2, a pin A2 of the central control system (2) is respectively connected with the anode of a capacitor C1 and a pin A5 of the central control system (2), the cathode of a capacitor C1 is respectively connected with a resistor R3 and one end of a capacitor C2, the pin A4 of the central control system (2) and the emitter of a triode Q1 are connected and grounded, the other end of a capacitor C2 is connected with a pin A3 of the central control system (2), a pin A5 of the central control system (2) is connected with the anode of a capacitor C1 and one end of a resistor R3, a pin A6 of the central control system (2) is grounded, a pin A7 of the central control system (2) is respectively connected with a pin A58, a resistor R1, a pin A1 of the central control system (8742), the other end of the resistor R4 is connected with the base electrode of the triode Q1, the collector electrode of the triode Q1 is respectively connected with the other end of the resistor R5, the cathode of the diode D and one end of the multi-emitter transistor T, the other end of the multi-emitter transistor T is connected with a power supply, the anode of the diode D is connected with one end of the resistor R6, and the other end of the resistor R6 is respectively connected with the resistor R5 and the resistor R1, a pin A1 of the central control system (2) and a pin A8 of the central control system (2) and connected with the power supply in parallel;
the pin A9 of the main control chip (10) is respectively connected with a capacitor C4, a capacitor C3 and a collector of a triode Q3, an emitter of the triode Q3 is connected with one end of a resistor R7 and connected with a power supply in parallel, the other end of the resistor R7 is connected with a base of a triode Q3 and one end of a resistor R8, the other end of the resistor R8 is connected with a collector of the triode Q2, a base of the triode Q2 is connected with one end of a resistor R9, the other end of the resistor R9 is connected with a power supply, an emitter of the triode Q2 is grounded, a pin A10 of the main control chip (10) is connected with the capacitor C4, the other end of the capacitor C3 and one end of the capacitors C5 and C6 and the other end of the capacitor C6 are connected with the pin A11 and the other end.
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| ES2343159B1 (en) * | 2008-09-12 | 2011-06-06 | Barbolight, S.L. | CONTROL SYSTEM FOR ELECTRICAL INSTALLATIONS OF MULTIPLE LUMINAIRES. |
| WO2013058830A1 (en) * | 2011-10-19 | 2013-04-25 | Balu Subramanya | Directional speed and distance sensor |
| CN102752922B (en) * | 2012-06-25 | 2014-10-22 | 同济大学 | Intelligent road-perceiving LED (Light-Emitting Diode) illuminating controller |
| US9161419B2 (en) * | 2012-07-02 | 2015-10-13 | International Business Machines Corporation | Intelligent and coordinated lighting of a lighting device |
| CN108243539A (en) * | 2017-10-25 | 2018-07-03 | 湛引根 | Automation is super away from road lamp system |
| CN208638766U (en) * | 2018-08-02 | 2019-03-22 | 深圳万城节能股份有限公司 | Street Lamp Monitor System based on lora technology |
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