Intelligent street lamp control system based on LoRa module

Abstract

The invention discloses a smart street lamp control system based on a LoRa module, which relates to the technical field of smart cities and comprises a gateway concentrator and (n-1) street lamp nodes, the signal output end of the gateway concentrator is respectively connected with the signal input ends of the (n-1) street lamp nodes; each street lamp node comprises a node LoRa module, a first power supply voltage reduction module, a first main control chip, a first LM2596S voltage reduction module, a first LED power supply driver and a street lamp. The intelligent street lamp control system is designed by utilizing the LoRa module, the Internet of Things technology and urban infrastructure street lamps, the requirement of intelligent street lamp construction for infrastructure intelligence is responded, the purpose of intelligent management and control can be achieved, the illumination intensity is monitored and adjusted in real time, and the intelligent street lamp control system is suitable for being popularized and applied. The urban management efficiency is improved, energy is saved, emission is reduced, the living quality of residents is improved, and a finer and more dynamic regulation and control means is further provided for urban management.

Description

Technical Field

[0001] The present invention relates to the field of smart city technology, and in particular to a smart street lamp control system based on a LoRa module. Background Art

[0002] With the rapid development of smart city construction and Internet of Things technology, smart street lights are being widely used in various industries as key equipment to improve urban management efficiency and energy conservation and emission reduction. In urban infrastructure, the efficient use of smart street light technology to improve lighting management and energy consumption control efficiency has become a research topic that has attracted much attention. At present, the problems of low manual management efficiency, large energy waste, and uneven ambient lighting in urban lighting management have led to the difficulty of maintaining smart city management. Summary of the invention

[0003] The purpose of the present invention is to provide a method for visually and dynamically constructing an intelligence analysis system to improve the above technical problems.

[0004] In order to achieve the above-mentioned object of the invention, the embodiment of the present invention provides the following technical solutions:

[0005] A smart street light control system based on a LoRa module, comprising a road gateway concentrator and n-1 street light nodes; the signal output end of the road gateway concentrator is respectively connected to the signal input ends of the n-1 street light nodes;

[0006] Each of the street lamp nodes includes a node LoRa module, a first power buck module, a first main control chip, a first LM2596S buck module, a first LED power driver and a street lamp;

[0007] The signal input end of the node LoRa module serves as the signal input end of the street lamp node; the signal output end of the node LoRa module and the output end of the first power supply buck module are both connected to the signal input end of the first main control chip; the signal output end of the first main control chip is connected to the signal input end of the first LM2596S buck module; the signal output end of the first LM2596S buck module is connected to the signal input end of the first LED power supply driver; the signal output end of the first LED power supply driver is connected to the street lamp.

[0008] Further, the road gate gateway concentrator includes a cloud platform, a DTU-4G module, a relay, a second power supply step-down module, a DS1302 clock module, a second main control chip, a second LM2596S step-down module, a second LED power driver, a gateway LoRa module and an LED street lamp;

[0009] The signal output end of the cloud platform is connected to the signal input end of the DTU-4G module; the signal output end of the DTU-4G module is connected to the signal input end of the relay; the first signal output end of the relay is connected to the signal input end of the second power buck module; the signal output end of the second power buck module and the second signal output end of the relay are both connected to the first signal input end of the second main control chip; the signal output end of the DS1302 clock module is connected to the second signal input end of the second main control chip; the first signal output end of the second main control chip is connected to the signal input end of the gateway LoRa module; the signal output end of the gateway LoRa module serves as the signal output end of the gateway concentrator; the second signal output end of the second main control chip is connected to the signal input end of the second LM2596S buck module; the signal output end of the second LM2596S buck module is connected to the signal input end of the second LED power driver; the signal output end of the second LED power driver is connected to the LED street light.

[0010] Furthermore, the street lamp device corresponding to each of the street lamp nodes includes a lamp holder, a LoRa antenna, a lamp pole, a control box, a node main control system, and an inspection door;

[0011] The lamp holder is connected to the top of the lamp pole through a curved steel rod; the control box is provided on the outside of the bottom end of the lamp pole; the node main control system is placed on the outside of the top end of the control box; the inspection door is placed on the outside of the bottom end of the control box; the LoRa antenna is connected to the node main control system through a lead wire.

[0012] Furthermore, the street lamp device corresponding to the road gate gateway concentrator includes a lamp holder, a LoRa antenna, a lamp pole, a control box, a gateway main control system, an inspection door and a DTU-4G antenna;

[0013] The lamp holder is connected to the top of the lamp pole through a curved steel rod; the LoRa antenna is connected to the gateway main control system through a lead wire; the control box is provided on the outside of the bottom end of the lamp pole; the gateway main control system is placed on the outside of the top end of the control box; the inspection door is placed on the outside of the bottom end of the control box; the DTU-4G antenna is placed on the outside of the bottom end of the control box, and corresponds to the vertical direction of the gateway main control system and the horizontal direction of the inspection door; the DTU-4G antenna is connected to the gateway main control system through a lead wire.

[0014] Furthermore, the first main control chip and the second main control chip both adopt a microcontroller of the model Arduino nano.

[0015] Furthermore, the first power step-down module and the second power step-down module adopt the same structure, and both include a chip U2 with model LM2596S-ADJ; port 1 of the chip U2 is connected to the grounded capacitor C1, and serves as the signal input end of the first power step-down module or the second power step-down module; port 2 of the chip U2 is respectively connected to one end of the inductor L1 and the grounded voltage-stabilizing diode D1; port 3 of the chip U2 is respectively connected to port 5 and port 6 of the chip U2, and is grounded; port 4 of the chip U2 is respectively connected to one end of the capacitor C3, the middle tap of the tap resistor R2 and the grounding resistor R1; the other end of the inductor L1 is respectively connected to the other end of the capacitor C3, one end of the tap resistor R2 and the grounding capacitor C2, and serves as the signal output end of the first power step-down module or the second power step-down module.

[0016] Furthermore, the first LM2596S buck module and the second LM2596S buck module adopt the same structure; the first LM2596S buck module includes a chip U3 with model number LM2596S-ADJ; port 1 of the chip U3 is connected to the grounded capacitor C6 and serves as the signal output end of the first LM2596S buck module; port 2 of the chip U3 is respectively connected to one end of the inductor L2 and the grounded voltage-stabilizing diode D2; port 3 of the chip U3 is respectively connected to port 6 of the chip U2 and grounded; port 4 of the chip U3 is respectively connected to one end of the capacitor C4, the middle tap of the tap resistor R3 and the grounding resistor R4; port 5 of the chip U3 serves as the signal input end of the first LM2596S buck module; the other end of the inductor L2 is respectively connected to the other end of the capacitor C4, one end of the tap resistor R3 and the grounding capacitor C5, and serves as the OUT end of the first power buck module or the second power buck module.

[0017] The beneficial effects of the present invention are:

[0018] The present invention utilizes LoRa modules, Internet of Things technology and urban infrastructure street lamps to design a smart street lamp control system, which responds to the demand for intelligent infrastructure in the construction of smart street lamps, can achieve the purpose of intelligent management and control, monitor and adjust the lighting intensity in real time, improve urban management efficiency, save energy and reduce emissions, and improve the quality of life of residents, further providing more sophisticated and dynamic control means for urban management. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the structure of a smart street light control system in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a street light node in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a gateway concentrator in an embodiment of the present invention;

[0023] Figure 4 is a circuit diagram of a first main control chip in an embodiment of the present invention;

[0024] Figure 5 is a circuit diagram of the second main control chip in an embodiment of the present invention;

[0025] Figure 6 Schematic diagram of the structure of the street lamp device in the embodiment of the present invention; 1. lamp head; 2. LoRa antenna; 3. lamp pole; 4. gateway main control system; 5. control box; 6. maintenance door; 7. DTU-4G antenna; 8. node main control system;

[0026] Figure 7 is a circuit diagram of a first power supply voltage reduction module in an embodiment of the present invention;

[0027] Figure 8 4 is a circuit diagram of a first LM2596S step-down module in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0029] See also Figure 1 and Figure 2, this embodiment provides a smart street light control system based on the LoRa module, which includes a road gateway concentrator and n-1 street light nodes; the signal output end of the road gateway concentrator is respectively connected to the signal input end of the n-1 street light nodes;

[0030] Each of the street lamp nodes includes a node LoRa module, a first power buck module, a first main control chip, a first LM2596S buck module, a first LED power driver and a street lamp;

[0031] The signal input end of the node LoRa module serves as the signal input end of the street lamp node; the signal output end of the node LoRa module and the output end of the first power supply buck module are both connected to the signal input end of the first main control chip; the signal output end of the first main control chip is connected to the signal input end of the first LM2596S buck module; the signal output end of the first LM2596S buck module is connected to the signal input end of the first LED power supply driver; the signal output end of the first LED power supply driver is connected to the street lamp.

[0032] like Figure 3 As shown, the gateway concentrator includes a cloud platform, a DTU-4G module, a relay, a second power buck module, a DS1302 clock module, a second main control chip, a second LM2596S buck module, a second LED power driver, a gateway LoRa module and an LED street lamp;

[0033] The signal output end of the cloud platform is connected to the signal input end of the DTU-4G module; the signal output end of the DTU-4G module is connected to the signal input end of the relay; the first signal output end of the relay is connected to the signal input end of the second power buck module; the signal output end of the second power buck module and the second signal output end of the relay are both connected to the first signal input end of the second main control chip; the signal output end of the DS1302 clock module is connected to the second signal input end of the second main control chip; the first signal output end of the second main control chip is connected to the signal input end of the gateway LoRa module; the signal output end of the gateway LoRa module serves as the signal output end of the gateway concentrator; the second signal output end of the second main control chip is connected to the signal input end of the second LM2596S buck module; the signal output end of the second LM2596S buck module is connected to the signal input end of the second LED power driver; the signal output end of the second LED power driver is connected to the LED street light.

[0034] The DTU-4G module uses the module of the human-connected Internet of Things, which has the advantages of high speed, low latency and small size; the gateway LoRa module and the node LoRa module use the module of the punctual atom, with an operating frequency band of 410-441Mhz and a communication distance of 5km; the DS1302 clock module can calculate the seconds, minutes, hours, days, weeks, months and years before 2100, and has the ability to adjust leap years, which is suitable for environmental perception and equipment status adjustment; the output voltage of the first LM2596S buck module and the second LM2596S buck module is 0V-35V (greater than the corresponding first LED power driver and second LED power driver 0-10V), and the operating temperature is -45℃-+85℃.

[0035] The first main control chip and the second main control chip both use a microcontroller of model Arduino nano as U1.

[0036] like Figure 4 As shown, in the first main control chip, port 1 of U1 is used as the TX interface; port 2 of U1 is the RX interface; port 9 of U1 is the D6 interface; port 10 of U1 is the D7 interface; port 15 of U1 is the D12 interface; port 16 of U1 is the D13 interface; port 17 of U1 is the 3V3 interface; port 29 of U1 is grounded; and port 30 of U1 is the VIN interface.

[0037] like Figure 5 As shown, in the second main control chip, port 1 of U1 is used as the TX interface; port 2 of U1 is the RX interface; port 5 of U1 is the RST-D2 interface; port 7 of U1 is the DAT-D4 interface; port 8 of U1 is the DAT-D5 interface; port 9 of U1 is the D6 interface; port 10 of U1 is the D7 interface; port 11 of U1 is the D8 interface; port 12 of U1 is the D9 interface; port 13 of U1 is the D10 interface; port 14 of U1 is the D11 interface; port 15 of U1 is the D12 interface; port 16 of U1 is the D13 interface; port 17 of U1 is the 3V3 interface; port 13 of U1 is connected to a 5V voltage; port 29 of U1 is grounded; port 30 of U1 is the VIN interface.

[0038] The cloud platform sends binary RS485 protocol instructions to the DTU-4G module through the 4G network; the DTU-4G module transmits the binary RS485 protocol instructions to the relay. The relay turns on the second main control chip according to the binary RS485 protocol instructions. The second main control chip receives the relay's turn-on signal and the 24-hour time signal output by the DS1302 clock module, makes different instructions based on the time signals of different time periods, and transmits the corresponding instructions to the second LM2596S buck module and the gateway LoRa module respectively. The second LM2596S buck module starts the corresponding switch according to the received instructions, and transmits the corresponding different voltage signals to the second LED power driver; the second LED power driver adjusts the street lamp according to the different voltage signals, thereby controlling the brightness of the street lamp.

[0039] The corresponding instructions are input to the node LoRa modules of each street light node through the gateway LoRa module, and then the instructions are input to the corresponding first main control chip through the node LoRa module. After receiving the instructions, the first main control chip makes a corresponding signal and transmits it to the second LM2596S buck module. The second LM2596S buck module outputs different voltage signals to the first LED power driver according to the signals; the first LED power driver controls the brightness of the street light of the corresponding street light node according to the different voltage signals.

[0040] like Figure 6 As shown, the street lamp device corresponding to each of the street lamp nodes includes a lamp head 1, a LoRa antenna 2, a lamp pole 3, a control box 5, a node main control system 8, and an inspection door 6;

[0041] The lamp holder 1 is connected to the top of the lamp pole 3 through a curved steel rod; the control box 5 is provided on the outside of the bottom end of the lamp pole 3; the node main control system 8 is placed on the outside of the top end of the control box 5; the inspection door 6 is placed on the outside of the bottom end of the control box 5; the LoRa antenna 2 is connected to the node main control system 8 through a lead wire.

[0042] like Figure 6 As shown, the street lamp device corresponding to the road gateway concentrator includes a lamp head 1, a LoRa antenna 2, a lamp pole 3, a control box 5, a gateway main control system 4, an inspection door 6 and a DTU-4G antenna 7;

[0043] The lamp holder 1 is connected to the top of the lamp pole 3 through a curved steel rod; the LoRa antenna 2 is connected to the gateway main control system 4 through a lead wire; the control box 5 is provided on the outside of the bottom end of the lamp pole 3; the gateway main control system 4 is placed on the outside of the top end of the control box 5; the inspection door 6 is placed on the outside of the bottom end of the control box 5; the DTU-4G antenna 7 is placed on the outside of the bottom end of the control box 5, and corresponds to the gateway main control system 4 in the vertical direction and to the inspection door 6 in the horizontal direction; the DTU-4G antenna 7 is connected to the gateway main control system 4 through a lead wire.

[0044] DTU-4G antenna 7 is a DTU-4G module, the LoRa antenna 2 in the street light node is a node LoRa module, and the LoRa antenna 2 in the road gateway concentrator is a gateway LoRa module.

[0045] like Figure 7 As shown, the first power step-down module and the second power step-down module adopt the same structure, and both include a chip U2 of model LM2596S-ADJ; port 1 of the chip U2 is connected to the grounded capacitor C1, and serves as the signal input end of the first power step-down module or the second power step-down module; port 2 of the chip U2 is respectively connected to one end of the inductor L1 and the grounded zener diode D1; port 3 of the chip U2 is respectively connected to port 5 and port 6 of the chip U2, and is grounded; port 4 of the chip U2 is respectively connected to one end of the capacitor C3, the middle tap of the tap resistor R2 and the grounding resistor R1; the other end of the inductor L1 is respectively connected to the other end of the capacitor C3, one end of the tap resistor R2 and the grounding capacitor C2, and serves as the signal output end of the first power step-down module or the second power step-down module.

[0046] like Figure 8 As shown, the first LM2596S buck module and the second LM2596S buck module adopt the same structure; the first LM2596S buck module includes a chip U3 of model LM2596S-ADJ; port 1 of the chip U3 is connected to the grounded capacitor C6 and serves as the signal output end of the first LM2596S buck module; port 2 of the chip U3 is respectively connected to one end of the inductor L2 and the grounded voltage regulator diode D2; port 3 of the chip U3 is respectively connected to port 6 of the chip U2 and grounded; port 4 of the chip U3 is respectively connected to one end of the capacitor C4, the middle tap of the tap resistor R3 and the grounding resistor R4; port 5 of the chip U3 serves as the signal input end of the first LM2596S buck module; the other end of the inductor L2 is respectively connected to the other end of the capacitor C4, one end of the tap resistor R3 and the grounding capacitor C5, and serves as the OUT end of the first power buck module or the second power buck module.

[0047] For the first LM2596S buck module and the second LM2596S buck module, port 5 of chip U3 is respectively connected to the D6 interface, D7 interface, D12 interface and D13 interface of the first main control chip U1 under different voltage signals.

[0048] In summary, the present invention uses LoRa modules, Internet of Things technology and urban infrastructure street lamps to design a smart street lamp control system, which responds to the demand for intelligent infrastructure in the construction of smart street lamps and can achieve the purpose of intelligent management and control; using the DTU-4G module, it has efficient data transmission speed, extremely short response time and less energy consumption, and real-time monitoring and adjustment of lighting intensity, which improves urban management efficiency, saves energy and reduces emissions, and improves the quality of life of residents, further providing more sophisticated and dynamic control means for urban management.

[0049] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A smart street light control system based on LoRa module, characterized in that: It includes a road gateway concentrator and n-1 street lamp nodes; the signal output end of the road gateway concentrator is respectively connected to the signal input ends of the n-1 street lamp nodes; Each of the street lamp nodes includes a node LoRa module, a first power buck module, a first main control chip, a first LM2596S buck module, a first LED power driver and a street lamp; The signal input end of the node LoRa module serves as the signal input end of the street lamp node; the signal output end of the node LoRa module and the output end of the first power supply buck module are both connected to the signal input end of the first main control chip; the signal output end of the first main control chip is connected to the signal input end of the first LM2596S buck module; the signal output end of the first LM2596S buck module is connected to the signal input end of the first LED power supply driver; the signal output end of the first LED power supply driver is connected to the street lamp.

2. The intelligent street light control system based on LoRa module according to claim 1 is characterized in that: The road gateway concentrator includes a cloud platform, a DTU-4G module, a relay, a second power buck module, a DS1302 clock module, a second main control chip, a second LM2596S buck module, a second LED power driver, a gateway LoRa module and a street lamp; The signal output end of the cloud platform is connected to the signal input end of the DTU-4G module; the signal output end of the DTU-4G module is connected to the signal input end of the relay; the first signal output end of the relay is connected to the signal input end of the second power buck module; the signal output end of the second power buck module and the second signal output end of the relay are both connected to the first signal input end of the second main control chip; the signal output end of the DS1302 clock module is connected to the second signal input end of the second main control chip; the first signal output end of the second main control chip is connected to the signal input end of the gateway LoRa module; the signal output end of the gateway LoRa module serves as the signal output end of the gateway concentrator; the second signal output end of the second main control chip is connected to the signal input end of the second LM2596S buck module; the signal output end of the second LM2596S buck module is connected to the signal input end of the second LED power driver; the signal output end of the second LED power driver is connected to the street lamp.

3. The intelligent street lamp control system based on LoRa module according to claim 1 is characterized in that: The street lamp device corresponding to each of the street lamp nodes comprises a lamp head (1), a LoRa antenna (2), a lamp pole (3), a control box (5), a node main control system (8), and an inspection door (6); The lamp holder (1) is connected to the top of the lamp pole (3) via a curved steel rod; the control box (5) is provided on the outside of the bottom of the lamp pole (3); the node main control system (8) is placed on the outside of the top of the control box (5); the inspection door (6) is placed on the outside of the bottom of the control box (5); and the LoRa antenna (2) is connected to the node main control system (8) via a lead wire.

4. The intelligent street light control system based on LoRa module according to claim 2 is characterized in that: The street lamp device corresponding to the road gate gateway concentrator comprises a lamp head (1), a LoRa antenna (2), a lamp pole (3), a control box (5), a gateway main control system (4), an inspection door (6) and a DTU-4G antenna (7); The lamp holder (1) is connected to the top of the lamp pole (3) via a curved steel rod; the LoRa antenna (2) is connected to the gateway main control system (4) via a lead wire; the control box (5) is provided on the outside of the bottom end of the lamp pole (3); the gateway main control system (4) is placed on the outside of the top end of the control box (5); the inspection door (6) is placed on the outside of the bottom end of the control box (5); the DTU-4G antenna (7) is placed on the outside of the bottom end of the control box (5) and corresponds to the gateway main control system (4) in the vertical direction and to the inspection door (6) in the horizontal direction; the DTU-4G antenna (7) is connected to the gateway main control system (4) via a lead wire.

5. The intelligent street lamp control system based on LoRa module according to claim 2 is characterized in that: The first main control chip and the second main control chip both use a microcontroller of the Arduino nano model.

6. The intelligent street light control system based on LoRa module according to claim 2 is characterized in that: The first power step-down module and the second power step-down module adopt the same structure, and both include a chip U2 with model LM2596S-ADJ; port 1 of the chip U2 is connected to the grounded capacitor C1, and serves as the signal input end of the first power step-down module or the second power step-down module; port 2 of the chip U2 is respectively connected to one end of the inductor L1 and the grounded voltage-stabilizing diode D1; port 3 of the chip U2 is respectively connected to port 5 and port 6 of the chip U2, and is grounded; port 4 of the chip U2 is respectively connected to one end of the capacitor C3, the middle tap of the tap resistor R2 and the grounding resistor R1; the other end of the inductor L1 is respectively connected to the other end of the capacitor C3, one end of the tap resistor R2 and the grounding capacitor C2, and serves as the signal output end of the first power step-down module or the second power step-down module.

7. The intelligent street lamp control system based on LoRa module according to claim 2 is characterized in that: The first LM2596S buck module and the second LM2596S buck module adopt the same structure; the first LM2596S buck module includes a chip U3 with model number LM2596S-ADJ; port 1 of the chip U3 is connected to the grounded capacitor C6 and serves as the signal output end of the first LM2596S buck module; port 2 of the chip U3 is respectively connected to one end of the inductor L2 and the grounded voltage-stabilizing diode D2; port 3 of the chip U3 is respectively connected to port 6 of the chip U2 and grounded; port 4 of the chip U3 is respectively connected to one end of the capacitor C4, the middle tap of the tap resistor R3 and the grounding resistor R4; port 5 of the chip U3 serves as the signal input end of the first LM2596S buck module; the other end of the inductor L2 is respectively connected to the other end of the capacitor C4, one end of the tap resistor R3 and the grounding capacitor C5, and serves as the OUT end of the first power buck module or the second power buck module.

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