Intelligent solar light following street lamp system

Abstract

The utility model relates to an intelligent solar light following street lamp system. The system comprises a light following module, a motor, a photovoltaic panel, an energy storage unit, a second supporting rod and an LED lamp. The photovoltaic panel is used for collecting solar energy, converting the solar energy into electric energy and storing the electric energy in the energy storage unit; the light following module comprises a photoresistor, an LM358 voltage comparator and an AT89S51 single-chip microcomputer, the photoresistor can detect light of a vehicle, light signals are converted into electric signals through the LM358 voltage comparator and the AT89S51 single-chip microcomputer, the AT89S51 single-chip microcomputer enables a street lamp to be lightened and drives a motor to drive the street lamp to rotate by 0-180 degrees on a plane perpendicular to a motor shaft, and the street lamp is driven by the motor to rotate by 0-180 degrees. And when the vehicle leaves the detection area of the photoresistor, the street lamp is powered off and is reset. According to the street lamp system, green energy and an intelligent control technology are integrated, energy can be effectively saved, it is guaranteed that the vehicle can obtain effective illumination in the driving process, and the flexibility of light following detection is enhanced.

Description

Technical Field

[0001] The present disclosure relates to the field of public transportation lighting, and in particular, to a solar street lamp system. Background Art

[0002] Solar street lights use solar panels to convert solar energy into electrical energy, store the energy through energy storage units and provide electricity for lighting at night, reducing dependence on traditional energy and reducing environmental pollution, becoming an important development direction of the new energy lighting industry. Solar street lights have a long service life and are widely used in urban lighting, road lighting and other fields, with good social and economic benefits.

[0003] In the existing nighttime road lighting, most solar street light systems adopt a fixed lighting mode. Fixed street lights cannot be intelligently adjusted according to actual road usage. For example, Chinese patent document CN 112879855 A discloses an automatic light-chasing street light. In this solution, the street light continues to illuminate at night. At night, the lighting facilities of rural roads remain on when no vehicles pass by, resulting in energy waste.

[0004] In addition, as disclosed in CN 203298091 U, a rotatable street lamp based on a pyroelectric infrared sensor, this solution can only sense infrared rays from the human body surface and cannot be used to sense vehicle lights on sparsely populated roads. Summary of the invention

[0005] In order to solve the technical problems existing in the background technology, the present disclosure proposes an intelligent solar-powered light-chasing street light system. After the system is applied, a photoresistor can be used to detect the lights of oncoming vehicles, and the intelligent adjustment of street lights can be realized through the coordinated work of a voltage comparator, a single-chip microcomputer and a motor. The position of the light changes with the illumination of the lights of oncoming vehicles. When the lights of an oncoming vehicle are detected, it will automatically turn in the direction of the vehicle and track the route of the vehicle until the vehicle leaves the lighting range of the light. When there is no light source, the street light is fixed in one position and rotates along the same trajectory. This design intelligently adjusts the street lighting according to the situation of oncoming vehicles at night, reducing unnecessary energy consumption while improving road safety.

[0006] The intelligent solar-powered spot-chasing street lamp system disclosed in the present invention comprises a lamp pole body 1 and an LED lamp 9, and its uniqueness lies in that the street lamp system also comprises a first support pole 2, a spot-chasing module 5, a motor unit 6, a photovoltaic panel 3 and an energy storage unit 4, and a second support pole 8.

[0007] The photovoltaic panel 3 is fixed to the top of the first support rod 2; the first support rod 2 is connected to the lamp pole body 1; the energy storage unit 4 is used to convert the light energy obtained by the photovoltaic panel 3 into electrical energy and store it. The energy storage unit 4 is located on the back side of the photovoltaic panel 3 and is fixed on the first support rod 2, and is used to provide electrical energy to the LED light 9 and the chasing light module 5 at night.

[0008] The light-chasing module 5 is fixed on the lamp pole body 1; the light-chasing module includes a photoresistor, an LM358 voltage comparator and an AT89S51 single-chip microcomputer arranged on a PCB circuit board; at least two photoresistors are distributed on the left and right directions of the PCB circuit board, and are used to monitor vehicle lights at night; when the difference in light intensity data collected by the two photoresistors is greater than a preset start threshold, it is determined that a vehicle is approaching at this time, and the obtained light intensity data difference signal is transmitted to the LM358 voltage comparator for comparison to convert the light signal into an electrical signal, and transmitted to the AT89S51 single-chip microcomputer. After receiving the signal, the AT89S51 single-chip microcomputer sends a control signal to the control system of the motor unit under the control of the built-in program to drive the motor 12 to rotate; when the light intensity data difference signal is less than or equal to the preset start threshold, the AT89S51 single-chip microcomputer controls the motor to stop rotating.

[0009] The motor unit 6 includes a housing 10, a fixing screw 11, a first motor 12 and an output shaft 13; the output shaft 13 is coaxially connected to the head end of the second support rod 8; the tail end of the second support rod 8 is bent and connected to the LED lamp 9, which can drive the LED lamp 9 to rotate, so that the LED lamp 9 can be rotated within a range of 0 to 180 degrees on a plane perpendicular to the output shaft, thereby improving the lighting distance of the LED lamp; the first motor 12 is fixedly connected to the lamp pole body 1.

[0010] The energy storage unit 4 includes a storage battery and a corresponding charge and discharge controller; the power output end of the storage battery can supply power to the LED lamp 9 and the motor 12 under the instruction control of the AT89S51 single chip microcomputer.

[0011] When the vehicle leaves the detection area of ​​the photoresistor in the light-chasing module 5, the power supply of the LED lamp 9 and the motor 12 is cut off under the control of the instruction of the AT89S51 single-chip microcomputer.

[0012] Furthermore, the motor unit 6 in the system further comprises a transmission cover 7; the transmission cover covers the connection between the motor and the second support rod.

[0013] Furthermore, the battery is a 12V38AH lead-acid battery.

[0014] Furthermore, there are four photoresistors, which are distributed in the upper, lower, left and right directions of the PCB circuit board to monitor the car lights in the surrounding environment at night.

[0015] Furthermore, the photovoltaic panel 3 can rotate driven by a second motor; the second motor can work under the instruction control of an AT89S51 single chip microcomputer; a program is built into the AT89S51 single chip microcomputer, and the program can output instructions for controlling the rotation of the second motor according to changes in the angle of sunlight.

[0016] At least one of the above technical solutions adopted in one or more embodiments of this specification can achieve the following beneficial effects:

[0017] The intelligent solar chasing light street light system can detect the lights of oncoming vehicles on the road through photoresistors, and intelligently identify and respond to the presence of vehicles. The system can adjust the lighting mode of the street lights when necessary, thereby reducing energy waste. When there are no vehicles passing, the street lights will automatically power off and return to their original positions, avoiding unnecessary energy consumption and saving energy. The system's automatic adjustment mechanism reduces the need for manual intervention, thereby reducing long-term maintenance costs. The system is suitable for rural roads and can be intelligently adjusted according to actual light conditions and vehicle flow.

[0018] (1) The photosensitive element is responsible for monitoring the lights of vehicles passing through the road to detect changes in light intensity. When the light intensity changes emitted by the headlights are sensed, the photosensitive element converts them into electrical signals. These signals are then sent to the LM358 voltage comparator, which analyzes the signals to determine whether they exceed the set threshold level and thus determine whether a vehicle is approaching. Once the signal exceeds the threshold, the LM358 voltage comparator converts the analog light signal into a digital electrical signal and passes it to the AT89S51 microcontroller. After receiving the signal, the microcontroller starts the motor according to the preset program and adjusts the illumination direction and brightness of the street light to match the vehicle's route. Through the linkage control with the motor, the horizontal rotation of the street light is achieved, thereby dynamically managing the street light lighting to meet the actual lighting needs of the road at night and optimize energy consumption. The intelligent adjustment system can automatically adjust the lighting status according to the real-time vehicle flow to improve lighting efficiency and energy utilization.

[0019] (2) The light-chasing module controls the second support rod and the LED light, and compares the difference of the collected light intensity data with the preset start threshold value to determine that a vehicle is approaching.

[0020] (3) The solar street light tracking device uses a pair of photoresistors to sense changes in ambient light. The signals captured by these photoresistors are transmitted to the LM358 voltage comparator, which is responsible for converting the light signal into a comparable electrical signal and determining whether it exceeds the set threshold to identify whether a vehicle is passing. Once the signal exceeds the threshold, the LM358 voltage comparator converts the analog light signal into a digital electrical signal and sends these signals to the AT89S51 microcontroller. The microcontroller instructs the motor to perform corresponding operations based on the built-in program logic to adjust the illumination direction and brightness of the street light to adapt to the trajectory of the vehicle. The precise control of the motor enables the street light to rotate horizontally and optimize the lighting effect to meet the actual road use needs. It achieves multiple advantages such as low cost, easy deployment, simple maintenance, and intuitive operation. Through intelligent control, not only the lighting efficiency is improved, but also the energy consumption is effectively reduced. At the same time, the daily maintenance and operation process of the system are simplified, and the reliability and user-friendliness of the system are enhanced.

[0021] (4) The intelligent solar-powered spotlight chasing streetlight system not only provides necessary lighting at night, but also drives the motor to rotate the streetlight horizontally when it detects an approaching vehicle to track and illuminate the vehicle's path. The system drives the motor to rotate the streetlight 180 degrees around the axis on the vertical plane of the output shaft. The rotation range significantly improves the system's spotlight chasing capability and flexibility. When the vehicle leaves the detection area set by the system, the streetlight will automatically turn off the power and return to its initial position, effectively reducing energy consumption and achieving energy conservation and emission reduction. The design of this system also takes into account the ease of operation and cost-effectiveness, making the entire device not only energy-efficient, but also easy to install and maintain. Through intelligent design, the system can automatically adjust the lighting strategy according to real-time road conditions, optimize energy efficiency, and reduce long-term operating costs.

[0022] (5) It has dynamic lighting tracking capabilities, which are designed to automatically adjust light intensity based on immediate lighting needs or according to a set time period (for example, every few minutes). This design flexibility allows the system to adapt to a variety of lighting environments, including rural roads. Through an intelligent adjustment mechanism, the system not only ensures lighting efficiency but also optimizes energy use, and is suitable for various road lighting application scenarios. The system is designed to take into account changes in different road conditions and vehicle flow, and can automatically adjust the lighting mode to adapt to these changes, thereby reducing energy waste without sacrificing lighting quality. In addition, the system is designed with cost-effectiveness and ease of operation in mind, making it an economical and practical lighting solution, especially suitable for remote or rural areas that have difficulty accessing traditional power grids.

[0023] In summary, the technical solution proposed in the present disclosure is simple and practical, and solves the existing technical problems mentioned in the background technology.

[0024] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0025] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and are used to illustrate the technical solutions of the present disclosure together with the specification.

[0027] Figure 1 This is a schematic diagram of this type of intelligent solar chasing light street lamp system.

[0028] Figure 2 This is a schematic diagram of the motor part of this intelligent solar chasing light street light system.

[0029] Figure 3 This is the motor drive circuit diagram.

[0030] Figure 4 For the specific implementation, AT89S51 is used as the core circuit block diagram of the microcontroller.

[0031] Figure 5 This is a flow chart of the intelligent solar chasing light street lamp system.

[0032] Figure 6 For the specific implementation, AT89S51 single chip microcomputer is used to control the battery discharge and motor drive circuit diagram.

[0033] Figure 7 This is the circuit diagram of the light chasing module.

[0034] In the figure: 1-lamp pole body; 2-first support rod; 3-photovoltaic panel; 4-energy storage unit; 5-light chasing module; 6-motor unit; 7-protective cover; 8-second support rod; 9-LED lamp. DETAILED DESCRIPTION

[0035] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same figure numbers in the drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified. In addition, in order to better illustrate the present disclosure, numerous specific details are given in the specific embodiments below. Those skilled in the art should understand that the present disclosure can also be implemented without certain specific details. In some instances, methods and means well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present disclosure.

[0036] like Figure 1 As shown, this intelligent solar light chasing street light system includes a first support rod 2, a light chasing module 5, a motor 6, a photovoltaic panel 3, an energy storage unit 4, a transmission cover 7, a second support rod 8, a lamp pole body 1 and an LED lamp 9. The back of the photovoltaic panel 3 is located at the top of the lamp pole, and a first support rod 2 is provided below the photovoltaic panel 3. During the day, light energy is converted into electrical energy and stored in the energy storage unit 4, which is located behind the photovoltaic panel 3 and supplied to the LED lamp 9 and the light chasing module 5 at night. A light chasing module 5 is provided on one side of the lamp pole body 1, and the light chasing module 5 is fixed to the lamp pole body 1, and the other side transmits a signal to the motor 6. The motor 6 drives the second support rod 8 to rotate, and the second support rod 8 is connected to the LED lamp 9 and rotates together. The motor 6 realizes the horizontal rotation of the street lamp through the motor control system, and the horizontal rotation of the LED lamp 9 is driven by the motor regulator.

[0037] The energy storage module includes a 12V38AH lead-acid battery, which is relatively small in size and weight, and is easy to install and maintain. In the solar street light system, the 12V38AH lead-acid battery can be used in conjunction with solar panels, controllers and LED lamps to ensure stable lighting even when there is no sunlight.

[0038] The motor 6 includes a housing 10, fixing screws 11, a motor 12 and an output shaft 13. The motor is fixed to the housing 10 using the fixing screws 11, wherein the output shaft 13 is connected to the second support rod 8. The core of the motor assembly is the motor 12, which is responsible for converting electrical energy into mechanical energy and transmitting it to the mechanical equipment through the output shaft 13. In order to fix the motor and protect its internal structure, the motor is installed in a sturdy housing 10 and fastened with fixing screws 11 to resist vibration and external forces generated during operation. The output shaft 13 transmits power and is also connected to the second support rod 8 to further transmit power.

[0039] The 12V38AH lead-acid battery receives the instruction control of the AT89S51 single-chip microcomputer, and when the car lights are on, the 12V38AH battery is controlled to discharge.

[0040] The motor 6 drives the LED lamp 9 to rotate. The light-chasing system module 5 includes a photoresistor, an LM358 voltage comparator, and an AT89S51 single-chip microcomputer. The photoresistor detects the headlights of vehicles on the road. Four photoresistors are distributed in the upper, lower, left and right directions of the PCB circuit board to monitor the vehicle lights in the surrounding environment at night. If the light intensity data collected by the four photoresistors differ by more than a preset start threshold, it is determined that the vehicle lights are coming at this time, and the obtained signal is transmitted to the LM358 voltage comparator for voltage comparison. The LM358 voltage comparator converts the light signal into an electrical signal, which is then transmitted to the AT89S51 single-chip microcomputer. After receiving the signal, the AT89S51 single-chip microcomputer transmits an instruction to the motor control system. The AT89S51 single-chip microcomputer drives the output shaft 13 to adjust the direction angle, driving the second support rod 2 and the LED lamp 9 to adjust the horizontal direction until the light intensity data collected by the two photoresistors differ by no more than a preset start threshold. When the vehicle leaves the detection area of ​​the light chasing system, the AT89S51 single-chip microcomputer controls the direction angle adjustment component to stop moving, the street light is automatically powered off, and the original position is restored to reduce energy loss and waste.

[0041] Preferably, there are solar panels and energy storage units above the street lamps. The energy storage unit includes a 12V38AH lead-acid battery, which generates electricity during the day for lighting at night.

[0042] Preferably, the motor drives the second support rod to rotate the street lamp 180 degrees forward and backward around the axis on a plane vertical to the output shaft.

[0043] Preferably, the light-chasing detection device of the light-chasing system is arranged next to the street lamp. The equipment has good consistency.

[0044] Figure 3 The motor drive circuit adopts the relay drive mode. The forward and reverse rotation of the motor are completed by a single-way relay and a dual-way relay. The single-way relay controls the on and off of the corresponding motor drive power supply, and the dual-way relay controls the forward and reverse rotation of the motor. The function of the IN4007 diode in the figure is to follow the flow, preventing the backflow generated by the relay coil from breaking down the transistor. The function of the transistor in the figure is isolation and amplification.

[0045] Figure 4This is the core circuit diagram of AT89S51. AT89S51 contains 4k Bytes ISP (In-system programmable) Flash read-only program memory that can be repeatedly erased and written 1000 times. The device is manufactured using high-density, non-volatile storage technology, compatible with the standard MCS-51 instruction system and 80C51 pin structure. The chip integrates a general 8-bit central processor and ISPFlash storage unit, providing a cost-effective solution for many embedded control application systems. AT89S51 has 40 pins, 4k Bytes Flash on-chip program memory, 128 bytes of random access data memory (RAM), 32 external bidirectional input / output (I / O) ports, 4 interrupt priority levels, 2 levels of interrupt nesting, 2 16-bit programmable timer counters, 2 full-duplex serial communication ports, and an internal watchdog timer and on-chip clock oscillator.

[0046] Figure 7 As shown, the photoresistor detects light and transmits the signal to the LM358 voltage comparator for voltage comparison. The LM358 voltage comparator converts the light signal into an electrical signal, which is then transmitted to the AT89S51 microcontroller. After receiving the signal, the AT89S51 microcontroller transmits instructions to the motor control system.

[0047] pass Figure 1 and Figure 2 The demonstration presented an advanced street lighting system that combines solar energy conversion technology and intelligent tracking light functions. The system is committed to improving lighting efficiency, reducing energy consumption, and improving driving safety at night. The system is designed to be energy self-sufficient and adopts intelligent lighting management strategies, which is suitable for a variety of road environments, including rural trails.

[0048] The first support rod numbered 2, the light-chasing module numbered 5, the motor numbered 6, the photovoltaic panel numbered 3, the energy storage unit numbered 4, the transmission cover numbered 7, the second support rod numbered 8, the lamp post body numbered 1, and the LED lamp numbered 9. The photovoltaic panel 3 is located at the top of the lamp post body 1, responsible for collecting solar energy and converting it into electrical energy, which is then stored in the energy storage unit 4 located behind the photovoltaic panel. At night, the stored electrical energy is used to power the LED lamp 9 and the light-chasing module 5. The light-chasing module 5 is installed on one side of the lamp post body 1, using a photoresistor to sense the light intensity of passing vehicles, and transmits the detected light signal to the LM358 voltage comparator to convert it into an electrical signal. Subsequently, the AT89S51 single-chip microcomputer receives these electrical signals and controls the stepper motor 6 through the motor control system, so that the street lamp can rotate horizontally to meet the actual lighting needs of the road at night, thereby improving the efficiency of energy use. The second support rod 8 is connected to the LED lamp 9, and is driven by the motor 6 to achieve rotation for dynamic management and directional illumination of the light. The system also includes a transmission cover 7 to protect the motor and transmission mechanism, and a support structure for fixing the photovoltaic panel. Through this precise light intensity detection and motor control, the intelligent street light of the system not only improves the lighting efficiency, but also reduces energy waste and enhances the safety of night driving.

[0049] The photoresistor in the light-chasing module detects the light intensity by monitoring the lights of vehicles on the road. It senses the change in the light intensity emitted by the vehicle lights. The stronger the light, the smaller the AD value. Subtracting this value from 255 shows that the stronger the light, the larger the value. And convert this change into an electrical signal. The detected signal is transmitted to the LM358 voltage comparator, which then processes these signals and converts the analog AD value into a voltage value for display. It determines whether the preset threshold is reached to determine whether there is a vehicle approaching. After voltage comparison, the LM358 voltage comparator converts the optical signal into an electrical signal and transmits it to the AT89S51 microcontroller. After the AT89S51 microcontroller receives the signal, the microcontroller controls the motor to adjust the direction and brightness of the street light according to the preset program logic to adapt to the vehicle's driving path. Through communication with the motor, the movement of motor 2 is controlled to achieve horizontal rotation of the street light. Dynamic management of street lighting is achieved to adapt to the actual use of roads at night, thereby optimizing energy efficiency. This intelligent adjustment system can dynamically adjust the lighting according to the real-time road traffic situation. It can also be installed on country roads with low traffic volume to reduce the lighting intensity or turn off some street lights when there are no vehicles passing by to reduce energy consumption.

[0050] The photosensitive elements in the light-chasing module are arranged at both ends of the circuit board to monitor the light fluctuations caused by vehicles in the night environment. When the light intensity changes sensed by the elements on both sides exceed the preset limit, the system infers that a vehicle is approaching. When the difference in light intensity detected by the elements on both sides meets or is lower than the established threshold, the higher the light intensity, the lower the corresponding AD value; by subtracting the AD value from 255, we can get a value proportional to the light intensity. This light intensity change is converted into an electrical signal and then transmitted to the LM358 voltage comparator. The voltage comparator converts the received analog AD value into a voltage value and compares it with the preset threshold to determine whether there is a vehicle approaching. If no vehicle is detected, the system will not activate the motor to adjust the position. Conversely, once the light intensity difference is detected to exceed the threshold, the system confirms the presence of a vehicle and activates the motor to guide the mechanical structure to make the necessary angle adjustment so that the LED light can accurately illuminate the vehicle position. This process will continue until the light intensity difference drops below the threshold, at which time the motor stops adjusting to ensure that the lighting direction is consistent with the vehicle's driving trajectory.

[0051] LED lights through Figure 2 The second support rod driven by the motor is shown to adjust the direction angle. The comparison process of the light intensity data specifically includes the following steps:

[0052] 1. The absolute value of the light intensity difference detected by the photosensors on both sides is compared with a preset start threshold:

[0053] ① If the absolute value of the light intensity difference recorded by the photosensitive elements on both sides does not exceed the preset threshold, the system determines that there is no vehicle light at present and the motor does not need to be started.

[0054] ② If the absolute value of the detected light intensity difference exceeds the preset threshold, the system determines that there is vehicle light and needs to start the motor to adjust the position.

[0055] 2. The preset start threshold is adjustable. According to the intelligent solar spot-chasing street light system provided by the utility model, an incident angle detection experiment when a vehicle passes through a street light can be conducted at the construction site in advance to determine a suitable threshold.

[0056] 3. Using the LM358 voltage comparator and AT89S51 microcontroller, the motor's operating frequency and power consumption can be adjusted according to the actual detected vehicle light intensity to achieve optimal energy efficiency.

[0057] 4. The activation threshold can be fine-tuned according to the degree of allowed vehicle light intensity reduction to adapt to different lighting needs and environmental conditions.

[0058] The design of the transmission cover 7 and the supporting structure protects the motor 6 and the transmission mechanism, ensuring the stable operation of the system under various environmental conditions. In order to reduce the pressure driven by the motor, the second support rod and the transmission cover should be made of light and hard materials to facilitate installation and disassembly and withstand bad weather.

[0059] In summary, this system can detect the lights of oncoming vehicles on the road through photoresistors, and intelligently identify and respond to the presence of vehicles. The system can adjust the lighting mode of street lights when necessary, thereby reducing energy waste. When there are no vehicles passing, the street lights will automatically power off and return to their original positions, avoiding unnecessary energy consumption and saving energy. The system's automatic adjustment mechanism reduces the need for manual intervention, thereby reducing long-term maintenance costs. The system is suitable for rural roads and can be intelligently adjusted according to actual light conditions and vehicle flow.

Claims

1. An intelligent solar-powered spotlight system, comprising a lamp post body (1) and an LED lamp (9), characterized in that: The street light system further comprises a first support rod (2), a light tracking module (5), a motor unit (6), a photovoltaic panel (3), an energy storage unit (4), and a second support rod (8). The photovoltaic panel (3) is fixed to the top end of the first support rod (2); the first support rod (2) is connected to the lamp pole body (1); the energy storage unit (4) is used to convert the light energy obtained by the photovoltaic panel (3) into electrical energy and store it; the energy storage unit (4) is located on the back side of the photovoltaic panel (3) and is fixed to the first support rod (2) and is used to provide electrical energy to the LED lamp (9) and the light chasing module (5) at night; The light-chasing module (5) is fixed on the lamp pole body (1); the light-chasing module comprises a photoresistor, an LM358 voltage comparator and an AT89S51 single-chip microcomputer arranged on a PCB circuit board; At least two photoresistors are distributed on the left and right sides of a PCB circuit board and are used to monitor vehicle lights at night. When the difference between the light intensity data collected by the two photoresistors is greater than a preset start threshold, it is determined that a vehicle is approaching at this time, and the obtained light intensity data difference signal is transmitted to an LM358 voltage comparator for comparison to convert the light signal into an electrical signal, and then transmitted to an AT89S51 single-chip microcomputer. After receiving the signal, the AT89S51 single-chip microcomputer sends a control signal to a control system of a motor unit under the control of a built-in program to drive the motor (12) to rotate. When the light intensity data difference signal is less than or equal to the preset start threshold, the AT89S51 single-chip microcomputer controls the motor to stop rotating. The motor unit (6) comprises a housing (10), a fixing screw (11), a first motor (12) and an output shaft (13); the output shaft (13) is coaxially connected to the head end of the second support rod (8); the tail end of the second support rod (8) is bent and connected to the LED lamp (9), and can drive the LED lamp (9) to rotate, so that the LED lamp (9) can rotate within a range of 0 to 180 degrees on a plane perpendicular to the output shaft, thereby improving the lighting distance of the LED lamp; the first motor (12) is fixedly connected to the lamp pole body (1); The energy storage unit (4) comprises a storage battery and a corresponding charge and discharge controller; the power output end of the storage battery can supply power to the LED lamp (9) and the motor (12) under the instruction control of the AT89S51 single chip microcomputer; When the vehicle leaves the detection area of ​​the photoresistor in the light-chasing module (5), the power supply of the LED lamp (9) and the motor (12) is cut off under the command control of the AT89S51 single-chip microcomputer.

2. The intelligent solar-powered streetlight system according to claim 1 is characterized in that: The motor unit (6) in the system further comprises a transmission cover (7); the transmission cover covers the connection between the motor and the second support rod.

3. The intelligent solar-powered streetlight system according to claim 2 is characterized in that: The battery is a 12V38AH lead-acid battery.

4. The intelligent solar-powered spotlight system according to claim 3 is characterized in that: There are four photoresistors, which are distributed in the upper, lower, left and right directions of the PCB circuit board to monitor the car lights in the surrounding environment at night.

5. The intelligent solar-powered spotlight system according to claim 4 is characterized in that: The photovoltaic panel (3) can rotate under the drive of a second motor; the second motor can work under the instruction control of an AT89S51 single-chip microcomputer; a program is built into the AT89S51 single-chip microcomputer, and the program can output instructions for controlling the rotation of the second motor according to changes in the angle of sunlight.

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