Street lamp capable of adjusting brightness and angle according to environment
By using sensor networks and control systems, the brightness and angle of streetlights can be intelligently adjusted, solving the problems of energy waste and uneven lighting in traditional streetlights, improving the intelligent management and safety of streetlights, and reducing operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional streetlights have fixed brightness and lighting angles, and cannot automatically adjust according to the environment, resulting in energy waste and poor lighting effects. They also lack environmental perception and remote monitoring capabilities, increasing safety hazards and maintenance costs.
It employs a sensor network consisting of cameras, vibration sensors, light sensors, crowd density sensors, sound sensors, and PM2.5 sensors, combined with an STM32 microcontroller and an LED driver module, to achieve intelligent adjustment of brightness and angle. It also connects to a remote monitoring terminal via a 4G/5G wireless communication module to enable real-time monitoring and management.
It enables intelligent adjustment of street light brightness and angle, saves energy, improves lighting uniformity and safety, reduces operating costs, provides remote monitoring and alarm functions, and improves the quality of lighting services.
Smart Images
Figure CN224018347U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lighting, specifically to a street lamp that adjusts brightness and angle according to environment. BACKGROUND
[0002] As an important part of urban lighting systems, street lamps play a key role in ensuring traffic safety, facilitating residents' travel, and enhancing the city's image. Traditional street lamps usually have fixed brightness and angle settings, which gradually expose many problems in practical applications.
[0003] 1. Non-intelligent brightness adjustment: Most traditional street lamps only have a single fixed brightness mode and cannot automatically adjust brightness based on environmental light intensity. In the evening or low-light environment, the brightness may be insufficient, affecting the visibility of pedestrians and vehicles and increasing safety hazards; while in the daytime or high-light environment, it may continue to maintain a high brightness, causing significant energy waste.
[0004] 2. Non-adjustable lighting angle: The lighting angle is usually fixed and cannot be dynamically adjusted according to the distribution of pedestrians and vehicles. This may result in excessive lighting in some areas and insufficient lighting in others, failing to achieve efficient lighting coverage and affecting lighting effectiveness and energy utilization efficiency.
[0005] 3. Lack of environmental perception ability: Lack of perception ability for surrounding environmental factors such as pedestrian density and sound, unable to make intelligent responses based on actual conditions. For example, in periods or areas with low pedestrian flow, street lamps still maintain high brightness and fixed lighting modes, failing to achieve on-demand lighting and further exacerbating energy waste.
[0006] 4. Lack of remote monitoring and management: Traditional street lamps often lack remote monitoring functions, making it difficult for management personnel to monitor the operation status and fault information of street lamps in real time, unable to timely maintain and manage them, leading to delayed maintenance, affecting lighting service quality, and increasing maintenance costs.
[0007] With the increasing energy shortage and growing demand for intelligent urban facilities, developing a street lamp that can automatically adjust brightness and angle according to the environment has become an important issue in the field of lighting technology. INVENTION CONTENTS
[0008] The utility model solves the technical problem of providing a street lamp that adjusts brightness and angle according to the environment, which not only improves lighting quality and ensures the safe travel of pedestrians and vehicles, but also effectively saves energy, reduces operating costs, and realizes intelligent and efficient management of street lighting.
[0009] To solve the above technical problems, the utility model discloses the technical scheme provided by the embodiment as follows: a street lamp adjusting brightness and angle according to environment, including lamp pole and lamp shell, install camera and control box on the lamp pole, install solar power module on the control box, control panel is arranged to the control box, the control panel includes controller module and with the rudder drive module of controller module electricity, LED drive module, wireless communication module, the controller module is still with vibration sensor, illumination sensor, people flow density sensor, sound sensor, camera, PM2.5 sensor electricity connection arranged on the control box, the LED drive module is with the LED lamp group electricity connection arranged in the lamp shell, the wireless communication module is wirelessly communicated and connected with the monitoring terminal of remote end.
[0010] Further, the controller module is an STM32 series single-chip microcomputer.
[0011] Further, the solar power module includes a solar cell panel, a storage battery and a low-voltage direct-current power conversion module.
[0012] Further, the illumination sensor is a digital illumination sensor BH1750.
[0013] Further, the people flow density sensor is a millimeter wave radar sensor.
[0014] Further, the sound sensor is a KY-037 high-sensitivity microphone sensor module.
[0015] Further, the rudder drive module is a KC5188 rudder drive chip.
[0016] Further, the LED drive module adopts an LED constant-current drive chip HX301B.
[0017] Further, the wireless communication module is a 4G / 5G wireless communication module.
[0018] Further, the monitoring terminal is a wireless network monitoring server.
[0019] The beneficial effects of the above technical scheme of the utility model are as follows:
[0020] 1. The utility model discloses a light sensor in real time monitoring ambient light intensity, and automatically adjusts street lamp brightness. When light is strong, reduce brightness, when light is weak, improve brightness, avoid energy waste, significantly reduce street lamp energy consumption, realize efficient energy saving.
[0021] 2. The utility model discloses the people flow density sensor and camera detection people flow distribution, combine rudder drive module accurate control street lamp lighting angle, make light always focus on the area where people flow is more, improve the illumination pertinence and effectiveness, improve the illumination uniformity, enhance the road safety.
[0022] 3、The utility model discloses a vibration sensor is used for detecting the vibration signal related to street lamp, and can judge whether the scene has the illegal situation of damaging or stealing the street lamp in combination with the camera, if the image data are gathered and are sent wireless alarm signal to the monitoring terminal through 4G / 5G, guarantee the safe and stable work of street lamp. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is the principle block diagram of the street lamp control system of the utility model according to environmental regulation luminance and angle;
[0024] Figure 2 It is the structural diagram of the street lamp control system of the utility model according to environmental regulation luminance and angle;
[0025] Figure 3 It is the controller module circuit principle diagram of the street lamp control system of the utility model according to environmental regulation luminance and angle;
[0026] Figure 4 It is the LED drive module circuit principle diagram of the street lamp of the utility model according to environmental regulation luminance and angle;
[0027] Figure 5 It is the light sensor circuit principle diagram of the street lamp of the utility model according to environmental regulation luminance and angle. DETAILED DESCRIPTION
[0028] In order to make the technical problem, technical scheme and advantage that the utility model is going to solve more clear, below will carry out detailed description with the drawings and specific embodiment.
[0029] As Figure 1 , 2 The utility model discloses a kind of street lamps according to environmental regulation luminance and angle, including lamp pole 16 and lamp shell 15, camera 7 and control box 14 are installed on lamp pole 16, solar power module 2 is installed on control box 14, control box 14 is provided with control panel, control panel includes controller module 1 and with the rudder drive module 9, LED drive module 10, wireless communication module 11 of controller module 1 electrical connection, controller module 1 is also connected with vibration sensor 3, light sensor 4, people flow density sensor 5, sound sensor 6, camera 7, PM2.5 sensor 8 being arranged on control box 14, LED drive module 10 is connected with LED lamp group 13 being arranged in lamp shell 15, wireless communication module 11 is wirelessly communicated with remote monitoring terminal 12.
[0030] The controller module 1 is an STM32 series single-chip microcomputer. STM32 is a 32-bit microcontroller based on ARM Cortex-M core. It is designed by ARM Company and used by ST Company through perfecting peripheral circuit. It is used for receiving environmental data detected by various sensors and controlling the brightness of LED lamp.
[0031] The solar power module 2 includes a solar panel, a storage battery and a low-voltage direct-current power conversion module. The voltage of the solar panel is generally 18V or 36V, or between 9V and 48V, which mainly depends on the arrangement and mechanism of the panel. The storage battery is used to store the electrical energy converted by the solar panel, and the low-voltage direct-current power conversion module is used to convert the higher direct-current voltage output by the solar panel (or the storage battery) into low-voltage direct-current voltage for the operation of various modules of the utility model, such as 3.3V and 5V direct-current voltage.
[0032] As shown in Figure 5 The light sensor 4 is a digital light sensor BH1750, which can measure the light intensity in the environment. It has the characteristics of digital output, high precision, low power consumption and programmability. BH1750 uses a photoelectric element (sensor) to generate electric charge, amplifies the charge through an operational amplifier circuit, and obtains digital processing through A / D conversion. The output signal represents the intensity of light. The change of resistance in the sensor is caused by the light intensity. Under a constant current, the output voltage will also change with the change of light intensity. Therefore, the light intensity can be measured by detecting the output voltage.
[0033] The human flow density sensor 5 is a millimeter wave radar sensor, which senses the existence of human body by transmitting and receiving millimeter wave signals. Compared with traditional infrared sensors, millimeter wave radar sensors have higher precision, anti-interference ability and wider detection range. Its working principle is based on the Doppler effect, that is, when radar waves irradiate to moving or micro-moving (such as breathing) objects, the frequency of reflected waves will change, so as to realize the detection of target objects and realize the monitoring of human flow density beside the street lamp.
[0034] The sound sensor 6 is a KY-037 high-sensitivity microphone sensor module. The KY-037 high-sensitivity microphone sensor is a commonly used sound detection sensor, and its working principle is as follows: there is a sensitive capacitive microphone inside, sound waves make the diaphragm in the microphone vibrate, thereby changing the capacitance value, and then generating a weak electric signal. This electric signal is amplified by an amplifier circuit and can be output through the analog output pin as a voltage signal corresponding to the sound intensity. At the same time, the sensor also has a digital output pin, which will output a corresponding level signal when the sound intensity reaches the set threshold, which is used to trigger other devices or perform specific actions. It has high sensitivity and can sensitively detect sound changes in the surrounding environment and has good response to weak sound. It has dual output mode, with analog output and digital output, which can be flexibly selected according to specific application requirements. The sensitivity can be adjusted through the potentiometer on the sensor to adapt to different use scenarios.
[0035] The steering engine driving module 9 is a KC5188 steering engine driving chip. KC5188 receives external input control signals, processes and amplifies the signals, and then outputs corresponding driving signals to control the rotation angle, speed and other parameters of the steering engine. Specifically, after receiving the control signal, the chip will generate appropriate current and voltage signals through the internal logic circuit and power amplifier circuit according to the duty cycle and other information of the signal, drive the motor of the steering engine to rotate, and thus realize accurate control of the steering angle or speed.
[0036] The LED driving module 10 adopts an LED constant current driving chip HX301B. It supports wide voltage input and provides stable constant current output with high power efficiency. The built-in temperature compensation circuit can still ensure stable current output when the environment changes. It supports PWM dimming function, which adjusts the duty cycle of the LED through the PWM signal, and can effectively control the brightness of the LED. The single-chip microcomputer I / O port is connected with the chip VDD pin, and the output PWM signal controls the brightness of the LED lamp. Due to its constant current characteristics such as power voltage linear adjustment rate and load adjustment rate, the brightness change of the LED lamp caused by voltage fluctuation can be effectively avoided.
[0037] The wireless communication module 11 is a 4G / 5G wireless communication module, which is used for wirelessly sending the street lamp surrounding environment parameter signals detected by each sensor and the control signals of the street lamp to the remote monitoring terminal. The monitoring terminal 12 is a wireless network monitoring server.
[0038] The working principle of the utility model is:
[0039] As Figure 1As shown, the vibration sensor 3, the light sensor 4, the people flow density sensor 5, the sound sensor 6, the camera 7, and the PM2.5 sensor 8 respectively monitor the vibration signal, the light intensity signal, the personnel density signal near the street lamp, the people flow sound signal, the people flow image signal, and the air PM2.5 content signal related to the street lamp. Among them, the people flow density sensor 5 and the sound sensor 6 can detect how many people flow under the street lamp, and the camera 7 can detect which position direction the people flow is more, and then the rudder is rotated to control the light to shine on the place where the people flow is more according to the amount of people flow. The light sensor 4 detects the intensity of the ambient light, and then controls the brightness of the street lamp. When the light intensity is strong, the street lamp is controlled to emit light weakly, and vice versa. The PM2.5 sensor 8 detects the air PM2.5 content. The air PM2.5 content has a certain influence on the brightness under the same sunlight. The vibration sensor 3 is used to detect the vibration signal related to the street lamp. In combination with the camera 7, it can be judged whether there is a situation of damaging or stealing the street lamp. If it happens, the image data is collected and a wireless alarm signal is sent to the monitoring terminal.
[0040] The above is the preferred embodiment of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.
Claims
1. A street light that adjusts its brightness and angle according to the environment, comprising a light pole (16) and a light housing (15), characterized in that, A camera (7) and a control box (14) are installed on the lamp post (16). A solar power module (2) is installed on the control box (14). The control box (14) is equipped with a control board. The control board includes a controller module (1) and a servo drive module (9), an LED drive module (10), and a wireless communication module (11) electrically connected to the controller module (1). The controller module (1) is also electrically connected to a vibration sensor (3), a light sensor (4), a crowd density sensor (5), a sound sensor (6), a camera (7), and a PM2.5 sensor (8) installed on the control box (14). The LED drive module (10) is electrically connected to an LED light group (13) installed in the lamp housing (15). The wireless communication module (11) is wirelessly connected to a remote monitoring terminal (12).
2. The street light that adjusts its brightness and angle according to the environment as described in claim 1, characterized in that, The controller module (1) is an STM32 series microcontroller.
3. The street light that adjusts its brightness and angle according to the environment as described in claim 1, characterized in that, The solar power module (2) includes a solar panel, a battery, and a low-voltage DC power conversion module.
4. The street light that adjusts its brightness and angle according to the environment as described in claim 1, characterized in that, The light sensor (4) is a digital light sensor BH1750.
5. The street light that adjusts its brightness and angle according to the environment as described in claim 1, characterized in that, The crowd density sensor (5) is a millimeter-wave radar sensor.
6. The street light that adjusts its brightness and angle according to the environment as described in claim 1, characterized in that, The sound sensor (6) is a KY-037 high-sensitivity microphone sensor module.
7. The street light that adjusts its brightness and angle according to the environment as described in claim 1, characterized in that, The servo drive module (9) is a KC5188 servo drive chip.
8. The street light that adjusts its brightness and angle according to the environment as described in claim 1, characterized in that, The LED driving module (10) uses the LED constant current driving chip HX301B.
9. The street light that adjusts its brightness and angle according to the environment as described in claim 1, characterized in that, The wireless communication module (11) is a 4G / 5G wireless communication module.
10. The street light that adjusts its brightness and angle according to the environment as described in claim 1, characterized in that, The monitoring terminal (12) is a wireless network monitoring server.