Intelligent light adjusting device for LED street lamp

Abstract

The utility model discloses an intelligent light adjusting device for LED street lamp, including lamp pole, be equipped with environmental monitoring module, the lamp holder and second installation shell on the lamp pole, be equipped with LED drive system in the lamp holder, including LED lamp pearl matrix module, second installation shell inside is equipped with communication module, single lamp controller, control module and executive module, environmental monitoring module includes illumination sensor, microwave radar and infrared mobile detection sensor. Through above -mentioned structure, through real -time monitoring external environment light, vehicle flow and pedestrian activity etc. Data, dynamic adjustment street lamp's brightness, to realize the dual goal of energy -conserving and comfort degree, this nimble adjustment mechanism makes street lamp can adjust the real -time brightness according to the environment and demand, guarantees the adequacy of illumination, and realizes the effective energy -conserving.

Description

Technical Field

[0001] This utility model relates to the field of street lighting technology, and in particular to an intelligent dimming device for LED street lights. Background Technology

[0002] As cities continue to develop, LED streetlights are gradually becoming a new type of lighting, replacing traditional streetlights. Compared to traditional streetlights, LED streetlights are energy-efficient, environmentally friendly, and have a longer lifespan. However, in urban road lighting, the adjustment of brightness and color temperature is crucial for the urban lighting environment.

[0003] In the prior art, a search revealed a Chinese patent disclosing "An Intelligent Dimming Device for LED Streetlights," application number "201822208632.3." This patent mainly includes a housing, with a solar panel mounted on its upper end. A mounting base is fixed to the upper inner wall of the housing. Second metal gaskets are welded to both ends of the solar panel, and first fixing screws are mounted on the second metal gaskets. Photosensitive sensors are fixed symmetrically on the upper left and right sides of the housing. A lithium iron phosphate battery and a controller are fixed sequentially from left to right on the lower inner wall of the housing. The input end of the lithium iron phosphate battery is electrically connected to the output end of the solar panel. First metal gaskets are welded to both ends of the housing, and second fixing screws are mounted on the first metal gaskets. An LED lamp head is mounted at the lower end of the housing. While this patent addresses issues such as poor adjustment effect, complex structure, high cost, and lack of solar power generation (resulting in energy conservation and environmental friendliness) by incorporating photosensitive sensors, solar panels, lithium iron phosphate batteries, and a controller, dimming technology primarily relies on a single photosensitive sensor for ambient light intensity detection, resulting in a single-dimensional environmental perception that is susceptible to interference.

[0004] This method combines fixed-time dimming strategies to adjust brightness. However, this single-dimensional environmental perception is susceptible to interference (e.g., ambient illuminance on a full moon night can reach 0.3 lx, overlapping with data from a cloudy evening, causing the system to frequently and erroneously switch brightness modes). Furthermore, the fixed-time preset dimming strategy cannot dynamically respond to changes in traffic flow, potentially leading to insufficient lighting. Therefore, this invention provides an intelligent dimming device for LED streetlights to address the problems mentioned in the background section. Utility Model Content

[0005] The purpose of this invention is to provide an intelligent dimming device for LED streetlights. By monitoring data such as ambient light, vehicle traffic, and pedestrian activity in real time, the brightness of the streetlights is dynamically adjusted to achieve the dual goals of energy saving and comfort. This flexible adjustment mechanism enables the streetlights to adjust their brightness in real time according to the environment and needs, ensuring sufficient lighting while achieving effective energy conservation.

[0006] To achieve the above objectives, an intelligent dimming device for LED streetlights is provided, including a light pole, on which an environmental monitoring module, a lamp head, and a second mounting housing are provided;

[0007] The lamp head is equipped with an LED driving system, including an LED bead matrix module;

[0008] The second mounting housing contains a communication module, a single-lamp controller, a control module, and an execution module.

[0009] The environmental monitoring module includes a light sensor, a microwave radar, and an infrared motion detection sensor.

[0010] The intelligent dimming device for LED streetlights also includes a linkage module, which is used for cluster control of LED streetlights within a region.

[0011] According to the aforementioned intelligent dimming device for LED streetlights, the LED driving system includes a constant current LED driving circuit module and a current-voltage feedback circuit module.

[0012] According to the aforementioned intelligent dimming device for LED streetlights, the light pole is further provided with a first mounting shell, inside which a storage battery and an inverter are provided, and a photovoltaic panel is provided on the top of the light pole.

[0013] According to the aforementioned intelligent dimming device for LED streetlights, the linkage module adopts power line carrier communication or LoRa wireless network.

[0014] According to the aforementioned intelligent dimming device for LED streetlights, the communication module adopts the LoRaWAN protocol.

[0015] According to the aforementioned intelligent dimming device for LED streetlights, the environmental monitoring module is used to collect environmental data, the control module is used to process the data and generate dimming commands, the execution module is used to adjust the LED brightness, and the communication module is used for remote monitoring and data transmission.

[0016] This utility model has the following beneficial effects:

[0017] Compared with existing technologies, by monitoring data such as ambient light, vehicle traffic, and pedestrian activity in real time, the brightness of streetlights can be dynamically adjusted to achieve the dual goals of energy saving and comfort. This flexible adjustment mechanism enables streetlights to adjust their brightness in real time according to the environment and needs, ensuring sufficient lighting while achieving effective energy conservation. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a schematic diagram of the overall structure of an intelligent dimming device for LED streetlights according to this utility model;

[0020] Figure 2 This is a schematic diagram of the environmental monitoring module structure of an intelligent dimming device for LED streetlights according to this utility model;

[0021] Figure 3 This is a schematic diagram of the lamp head structure of an intelligent dimming device for LED streetlights according to this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the first mounting shell of an intelligent dimming device for LED streetlights according to this utility model;

[0023] Figure 5 This is a schematic diagram of the second mounting shell structure of an intelligent dimming device for LED streetlights according to the present invention.

[0024] Legend:

[0025] 1. Lamp pole; 2. Environmental monitoring module; 3. Lamp head; 4. First mounting shell; 5. Second mounting shell; 6. Photovoltaic panel; 7. Battery; 8. Inverter; 9. Communication module; 10. Single lamp controller; 11. Control module; 12. Execution module; 13. Linkage module; 21. Light sensor; 22. Microwave radar; 23. Infrared motion detection sensor; 31. Constant current LED driver circuit module; 32. Current and voltage feedback circuit module; 33. LED lamp bead matrix module. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-5 This utility model discloses an intelligent dimming device for LED streetlights, comprising a lamp post 1 and a linkage module 13. The lamp post 1 is equipped with an environmental monitoring module 2, a lamp head 3, and a second mounting shell 5. The lamp head 3 contains an LED driving system, including an LED bead matrix module 33, a constant current LED driving circuit module 31, and a current-voltage feedback circuit module 32. The lamp head 3 integrates an LED bead matrix, a constant current LED driving circuit (based on an XL4015 chip), and a current-voltage feedback circuit (using an INA226 chip), ensuring lighting stability and energy efficiency.

[0028] The environmental monitoring module 2 includes a light sensor 21, a microwave radar 22, and an infrared motion detection sensor 23. The light sensor 21 (model TSL2591) detects light intensity; the microwave radar 22 (model LD2410B) is a device that uses microwaves for distance and speed measurement; the infrared motion detection sensor 23 (model AMG8833) (PIR sensor) detects human activity by measuring infrared radiation in the environment. Humans generate infrared radiation when they move, and the PIR sensor measures human activity by detecting this infrared radiation.

[0029] The second mounting housing 5 contains a communication module 9, a single-lamp controller 10, a control module 11, and an execution module 12. The linkage module 13 is used for cluster control of LED streetlights within the area. The linkage module 13 adopts power line carrier communication or LoRa wireless network. The environmental monitoring module 2 is used to collect environmental data. The control module 11 is used to process data and generate dimming commands. The execution module 12 is used to adjust the LED brightness. The communication module 9 is used for remote monitoring and data transmission.

[0030] The control system mainly includes: a communication module 9, a single-lamp controller 10, a control module 11, and an execution module 12. The communication module 9 (LoRa module E32-470T30D) supports the LoRaWAN protocol; the single-lamp controller 10 (STM32F407 main control chip) has a built-in real-time clock (RTC); the control module 11 processes multi-source sensor data; the execution module 12 outputs PWM signals to drive the LED lamp matrix; and the linkage module 13 supports power line carrier communication (HPLC) or LoRa dual-mode networking to realize the cluster control of street lights within a certain area.

[0031] The light pole 1 is also equipped with a first mounting shell 4, which contains a storage battery 7 and an inverter 8. The top of the light pole 1 is equipped with a photovoltaic panel 6. During the day, the photovoltaic panel 6 charges the storage battery 7, and at night, the energy storage is used to supply power, thereby realizing the utilization of energy.

[0032] Working principle:

[0033] Data Acquisition: Environmental Monitoring Module 2 monitors real-time data such as ambient light, vehicle traffic, and pedestrian activity;

[0034] Intelligent Decision-Making: Control module 11 integrates sensor data and cloud commands, and outputs dimming signals according to the following strategy:

[0035] When there is no target: maintain 30% of the base brightness;

[0036] Pedestrian detected: Brightness increased to 50%;

[0037] Vehicle detected: Brightness increased to 80%;

[0038] When the illumination is less than 20 lx: automatically supplement the light to a safe level.

[0039] Dimming is achieved by driving the LED matrix 33 with a PWM signal;

[0040] Energy Management: During the day, the photovoltaic panel 6 charges the battery 7, and at night, the energy storage is used to supply power.

[0041] By monitoring data such as ambient light, vehicle traffic, and pedestrian activity in real time, the brightness of streetlights is dynamically adjusted to achieve the dual goals of energy conservation and comfort. This flexible adjustment mechanism allows streetlights to adjust their brightness in real time according to the environment and needs, ensuring sufficient lighting while achieving effective energy conservation.

[0042] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An intelligent dimming device for LED streetlights, characterized in that, It includes a lamp post (1), on which an environmental monitoring module (2), a lamp head (3), and a second mounting shell (5) are provided; The lamp head (3) is equipped with an LED driving system, including an LED lamp bead matrix module (33); The second mounting housing (5) is equipped with a communication module (9), a single lamp controller (10), a control module (11), and an execution module (12); The environmental monitoring module (2) includes a light sensor (21), a microwave radar (22), and an infrared motion detection sensor (23).

2. The intelligent dimming device for LED streetlights according to claim 1, characterized in that, It also includes a linkage module (13), which is used for cluster control of LED streetlights in the area.

3. The intelligent dimming device for LED streetlights according to claim 2, characterized in that, The LED driving system includes a constant current LED driving circuit module (31) and a current and voltage feedback circuit module (32).

4. The intelligent dimming device for LED streetlights according to claim 3, characterized in that, The lamp post (1) is also provided with a first mounting shell (4), inside which are a storage battery (7) and an inverter (8), and a photovoltaic panel (6) is provided on the top of the lamp post (1).

5. The intelligent dimming device for LED streetlights according to claim 4, characterized in that, The linkage module (13) adopts power line carrier communication or LoRa wireless network.

6. The intelligent dimming device for LED streetlights according to claim 1, characterized in that, The communication module (9) adopts the LoRaWAN protocol.

7. The intelligent dimming device for LED streetlights according to claim 6, characterized in that, The environmental monitoring module (2) is used to collect environmental data, the control module (11) is used to process the data and generate dimming instructions, the execution module (12) is used to adjust the LED brightness, and the communication module (9) is used for remote monitoring and data transmission.

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