Intelligent street lamp

Abstract

This invention relates to the field of smart streetlights, specifically disclosing a smart streetlight comprising a pole, a display screen unit, a camera unit, and a lighting unit. The display screen unit and the camera unit are both installed inside the pole and are protected by display windows and observation windows, respectively. A lifting frame is fitted over the outside of the pole, and the lifting frame is equipped with a ring scraper and a top cover. When the lifting frame slides along the pole, the ring scraper can remove dirt from the outer surface of the pole, the display window, and the observation window. The top cover also serves as a rain shield, and pedestrians can adjust the height of the top cover according to their own height to prevent side leakage and improve rain protection.

Description

Technical Field

[0001] This invention belongs to the field of smart streetlights, and specifically relates to a smart streetlight. Background Technology

[0002] Smart streetlights integrate multiple functions such as lighting, video surveillance, public information dissemination, and environmental parameter monitoring, breaking through the limitations of traditional streetlights that only provide single-function illumination. They offer crucial technical support for comprehensive urban management, public safety and security, and residents' convenient travel. Smart streetlights typically feature a high-definition camera unit and an information display screen unit. The camera unit collects real-time image data, providing accurate data support for scenarios such as traffic flow control and public security monitoring. The display screen unit is used to publish public notices, safety warnings, convenience information, and compliant advertisements, enabling efficient information interaction between people and urban infrastructure. These two units together constitute the core functional module of a smart streetlight, and their operational stability and reliability directly determine the overall application effect and practical value of the smart streetlight.

[0003] However, due to the numerous functions of existing smart streetlights, their structures have too many exposed external parts and lack effective protective structures. They are unable to effectively resist the erosion and damage from external environmental factors such as dust, rain, falling objects, insects, and spider webs. Furthermore, since the camera and display units are usually installed high on the light pole, and existing smart streetlights lack convenient cleaning and maintenance structures, when the lenses and display surfaces become dirty, staff must use climbing equipment for manual cleaning and maintenance, which is not only difficult and dangerous but also inefficient. At the same time, existing smart streetlights generally lack dedicated pedestrian shelter structures, leaving them in an open-air state. This lack of pedestrian shelter also exposes the streetlights to constant rain erosion, accelerating the aging and corrosion of the light pole, lamp body, and internal electrical components, reducing the equipment's service life, and potentially causing internal short circuits and electrical faults, thus affecting the stable operation of various functions of the smart streetlight.

[0004] Patent document CN2021108698280 discloses a smart street light pole. Although it has a rain shelter structure, providing some rain protection for pedestrians, its surveillance camera is still mounted on the side of the pole in a suspended manner via a monitoring bracket at a high position. This not only lacks protection but also makes cleaning and maintenance inconvenient. The public information screen, i.e., the display unit, also lacks additional protective structure, and the rain shelter is installed too high and cannot be adjusted. Rainwater can splash onto pedestrians from the side or seep into the electronic components (such as the display unit and speaker unit), causing damage. It also hinders pedestrians from avoiding rain. Therefore, the aforementioned defects of lacking protection for the display unit and camera unit, making daily maintenance difficult, and lacking pedestrian rain protection still exist.

[0005] The above background information is provided only to aid in understanding the inventive concept and technical solution of this invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0006] The purpose of this invention is to provide a smart street light that overcomes the shortcomings of existing smart street lights, such as the lack of protection and maintenance of the display screen unit and camera unit, as well as the lack of pedestrian rain shelter function.

[0007] To achieve the above objectives, the present invention provides a smart street light, comprising a pole, a display screen unit, a camera unit, and a lighting unit. A display window and an observation window are provided on the side of the pole. The display screen unit and the camera unit are installed inside the pole. The display screen unit corresponds to the position of the display window, and the camera unit corresponds to the position of the observation window. The observation window is arranged around the outer side of the pole, and the outer surfaces of the display window and the observation window are flush with the outer surface of the pole. A lifting frame is fitted around the outer periphery of the pole. A top cover and an annular scraper are installed on the lifting frame. The inner side of the annular scraper abuts against the outer surface of the pole. A driving unit is installed between the pole and the lifting frame, enabling the lifting frame to slide along the pole. The display window, the observation window, and the top cover are made of a colorless, transparent, rigid material.

[0008] Preferably, in the above technical solution, the bottom of the top cover has a cover opening, the lifting frame is fixedly installed inside the top cover, the annular scraper is installed on the top of the top cover through a pressure ring, the annular scraper is sandwiched between the pressure ring and the top cover, and the side of the top cover has a spherical structure.

[0009] Preferably, in the above technical solution, a Bluetooth speaker unit is also installed at the bottom of the lifting frame.

[0010] Preferably, in the above technical solution, the rod body includes a first box, a second box, and a support tube. The first box is located above the second box, the support tube is connected between the bottom of the first box and the top of the second box, and the support tube is in communication with the interior of the first box and the second box. The camera unit is installed at the bottom of the first box, and the display screen unit is installed inside the second box.

[0011] Preferably, in the above technical solution, the observation window is a ring-shaped structure. The bottom of the first housing is provided with a first limiting ring protruding outward, and the top of the second housing is provided with a second limiting ring protruding outward. The upper end of the observation window is fitted around the outer periphery of the first limiting ring and abuts against the bottom of the first housing. The lower end of the observation window is fitted around the outer periphery of the second limiting ring and abuts against the top of the second housing.

[0012] Preferably, in the above technical solution, a third box is provided on the top of the first box, the interior of the third box is connected to the interior of the first box, the outer side of the third box protrudes outward from the outer side of the first box to form a limiting surface at the bottom of the third box, and the lighting unit is a ring structure and is fixedly connected to the side of the third box.

[0013] Preferably, in the above technical solution, the drive unit includes a frame, a drive motor, a reel, a first fixed pulley, a second fixed pulley, and cables. The frame and the first fixed pulley are installed in the second housing. The drive motor and the reel are installed on the frame. The output shaft of the drive motor is connected to the reel via a pulley assembly. The second fixed pulley is installed in the third housing. There are two first and second fixed pulleys, symmetrically arranged with the reel as the center. The limiting surface has a first cable passage hole. There are two cables. One end of each cable is connected to two opposite sides of the reel, and the other end of the cable passes through the first fixed pulley, the support tube, the second fixed pulley, and the first cable passage hole in sequence and is fixedly connected to the lifting frame.

[0014] Preferably, in the above technical solution, the pressure ring has a second wire passage hole, the annular scraper has a third wire passage hole, the top cover has a nail hole, and the lifting frame is equipped with a connecting column. One end of the connecting column passes through the nail hole, the third wire passage hole and the second wire passage hole respectively and is fixedly connected to the other end of the cable.

[0015] Preferably, in the above technical solution, the limiting surface is provided with a clearance opening, the bottom of the third housing is equipped with a limit switch, and the contact end of the limit switch extends downward from the clearance opening.

[0016] Preferably, in the above technical solution, a clearance groove is provided on the side of the rod body, the clearance groove is located below the display window, a button unit is provided at the bottom of the clearance groove, and the clearance groove is provided with an inclined guide surface.

[0017] Compared with existing technologies, the present invention has the following advantages: 1. The display screen unit and camera unit of the smart street light in this invention are built into the pole body, and are enclosed and protected by the display window and observation window. The pole body is covered with a liftable lifting frame, which is equipped with a ring scraper and a top cover. When the drive unit drives the lifting frame to move up and down, the ring scraper can automatically scrape off dust, rainwater, insects and other dirt from the surface of the pole body, display window and observation window. The top cover can be raised and lowered to provide temporary shelter from rain for pedestrians, and its height can be adjusted according to height to reduce side splashing rain and improve the user experience.

[0018] 2. The top cover of this invention has a spherical structure on the side and a Bluetooth speaker unit is installed inside the top cover. It can synchronize audio and video with the display screen unit and can also connect to a mobile phone for external audio playback when passers-by are taking shelter from the rain. The spherical structure design not only makes the side of the top cover have a better water-draining effect when it rains, but also has a sound-gathering effect on the Bluetooth speaker unit. It will not cause noise impact on the surrounding environment of the street light, and also has better sound effect and privacy.

[0019] 3. The rod in this invention is a hollow segmented structure composed of a first box and a second box. A support tube is installed between the first box and the second box. The observation window is a ring structure connected between the first box and the second box. The observation window not only provides a 360-degree transparent viewing angle for the camera unit, but also supports and fixes the first box. The support tube is a hollow structure. The support tube not only strengthens and fixes the first box, but also allows power cords and cables to pass through and be limited. Furthermore, its small diameter reduces the impact on the viewing angle of the camera unit. The tube is also made of transparent acrylic material for support and connection, thereby further reducing the obstruction of the viewing angle of the camera unit.

[0020] 4. In this invention, the outer sides of the display window and the observation window are flush with the outer side of the rod body. This not only facilitates the passage of the annular scraper and prevents jamming, but also avoids water accumulation caused by steps and gaps, which would damage the waterproof effect. Furthermore, it improves the overall integrity and consistency of the rod body, resulting in better aesthetics.

[0021] 5. The third housing in this invention can not only be used to install the second fixed pulley and limit switch, but also has an outer contour larger than the outer contour of the second housing to form a limiting surface. The limiting surface can not only play a limiting protection role, but also provide sufficient side installation space for the second fixed pulley. By opening a first wire passage hole on the limiting surface, the cable can be led out to the two sides of the second housing and fixedly connected to the top of the lifting frame, so that the up and down movement of the lifting frame is smoother and has sufficient vertical lifting force.

[0022] 6. The annular scraper in this invention can not only scrape away dirt from the outside of the pole, the display window, and the observation window when the lifting frame is raised and lowered, in conjunction with external water spraying or rainwater, but also seal the gap between the lifting frame and the outside of the pole to prevent water seepage when pedestrians are sheltering from the rain.

[0023] 7. The top cover in this invention is made of transparent acrylic material. The lighting unit is installed on the top of the pole. The light from the lighting unit can pass through the transparent top cover to illuminate the road surface, so that the top cover will not affect the normal lighting of the street light.

[0024] 8. The relief groove on the side of the rod in this invention not only serves to block water from the button unit, but also has a guide surface on the lower side of the relief groove, which can provide better drainage in rainy weather or when cleaning the rod. Attached Figure Description

[0025] Figure 1 This is a partial cross-sectional view of the smart street light of the present invention.

[0026] Figure 2 This is a partial sectional view of the rod.

[0027] Figure 3 This is a partial sectional view of the first and third boxes.

[0028] Figure 4 It is an exploded view of the lifting frame, top cover, annular scraper, and pressure ring.

[0029] Figure 5 This is a structural diagram of the drive unit.

[0030] Figure 6 This is a structural diagram of the drive unit from another angle.

[0031] Explanation of key figure labels: 100-rod body, 110-display window, 120-observation window, 130-first housing, 131-first limiting ring, 140-second housing, 141-second limiting ring, 150-support tube, 160-third housing, 161-limiting surface, 162-first wire hole, 163-clearance opening, 170-limit switch, 180-clearance groove, 181-guide surface; 200 - Display unit; 300-camera unit; 400 - Lighting Unit; 500-Lifting frame, 510-Top cover, 511-Cover opening, 512-Through nail hole, 520-Annular scraper, 521-Third wire hole, 530-Pressure ring, 531-Second wire hole, 540-Bluetooth speaker unit, 550-Connecting post; 600-Drive unit, 610-Frame, 620-Drive motor, 630-Reel, 640-First fixed pulley, 641-First pulley frame, 650-Second fixed pulley, 651-Second pulley frame, 660-Cable, 670-Pulley assembly, 680-Mounting beam; 700-Button Unit. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 4As shown, the smart street light in this embodiment includes a pole 100, a display screen unit 200, a camera unit 300, and a lighting unit 400. The pole 100 is composed of a first housing 130, a second housing 140, and support tubes 150. The first housing 130 is located above the second housing 140. The bottom of the second housing 140 is fixedly connected to the ground by expansion screws. There are two support tubes 150 connected between the bottom of the first housing 130 and the top of the second housing 140. The interior of the support tubes 150 is hollow and connected to the first housing 130 and the second housing 140. The internal components of the first enclosure 140 are interconnected. The support tube 150 uses two symmetrically arranged thin-diameter transparent tubes to minimize obstruction of the 360° viewing angle of the camera unit 300, ensuring a complete monitoring field of view. The camera unit 300 is installed at the bottom of the first enclosure 130, and the display unit 200 is installed inside the second enclosure 140. A controller is also installed inside the second enclosure 140. The power and signal cables of the camera unit 300 are first introduced into the first enclosure 130, then pass through the support tube 150 and are introduced into the second enclosure 140 to connect with the controller. A display window 110 is provided on the side, and the display unit 200 is positioned corresponding to the display window 110. An observation window 120 is installed in the space between the bottom of the first housing 130 and the top of the second housing 140. The observation window 120 has a ring-like structure. The bottom of the first housing 130 has a first limiting ring 131 protruding outward, and the top of the second housing 140 has a second limiting ring 141 protruding outward. The upper end of the observation window 120 is fitted around the outer periphery of the first limiting ring 131 and abuts against the bottom of the first housing 130. The lower end of the observation window 120 is fitted around the second limiting ring. The outer periphery of 141 abuts against the top of the second housing 140. The display window 110, the observation window 120 and the rod body 100 are sealed and assembled with sealing rings or structural adhesive. After assembly, the outer surface is flush and smooth, without steps or gaps, which facilitates the passage of scrapers and improves waterproof performance. The side of the second housing 140 is also provided with a clearance groove 180. The clearance groove 180 is located below the display window 110. A button unit 700 is installed at the bottom of the clearance groove 180. The button unit 700 is electrically connected to the controller. An inclined guide surface 181 is provided on the lower side of the clearance groove.

[0034] A lifting frame 500 is fitted around the outer periphery of the rod 100. A top cover 510 and an annular scraper 520 are mounted on the lifting frame 500. The inner side of the annular scraper 520 abuts against the outer side of the rod 100. A drive unit 600 is installed between the rod 100 and the lifting frame 500. The drive unit 600 can drive the lifting frame 500 to slide along the rod 100. The display window 110, the observation window 120, and the top cover 510 are made of colorless, transparent, and rigid material. Suitable materials include tempered transparent glass, plexiglass, and transparent PC. The materials used in this application include, but are not limited to, the aforementioned materials such as boards and high-transparency rigid plastic boards. Other similar transparent rigid materials that meet the requirements of high transparency, high hardness, wear resistance, and resistance to breakage are also within the scope of protection of this application. They can simultaneously achieve the dual functions of visual observation and safety protection. The annular scraper 520 is made of rubber or silicone elastic material and has an inclined scraping tongue on the inner side. The scraping tongue and the surface of the rod 100 form a pre-tightening pressure, which can not only scrape off dirt, but also form a seal when the lifting frame 500 is stationary, preventing rainwater from seeping in from the gap between the lifting frame 500 and the rod 100.

[0035] More in detail, such as Figure 4 As shown, the top cover 510 has a cover opening 511 at the bottom and a passage opening at the top, through which the first housing 130, the second housing 140, and the observation window 120 can pass. The lifting frame 500 has screw holes, and the top cover 510 has a first through hole that is aligned with the screw holes. The bottom surface of the annular scraper 520 is in contact with the top surface of the top cover 510. The annular scraper 520 has a second through hole, and a pressure ring 530 is installed on the top surface of the annular scraper 520. The pressure ring 530 has a third through hole, and screws can pass through the third through hole, the second through hole, and the first through hole in sequence and be threaded into the screw holes, thereby fixing the pressure ring 530, the annular scraper 520, the top cover 510, and the lifting frame 500 together. The side of the top cover 510 has a spherical structure, making the top cover 510 an inverted bowl-shaped structure. A Bluetooth speaker unit 540 is also installed at the bottom of the lifting frame 500.

[0036] In addition, such as Figure 2 and Figure 3As shown, a third box 160 is provided on the top of the first box 130. The interior of the third box 160 is connected to the interior of the first box 130. The outer side of the third box 160 protrudes outward from the outer side of the first box 130 and forms a limiting surface 161 at the bottom of the third box 160. The lighting unit 400 has a ring structure. The inner side of the lighting unit 400 is fixedly connected to the side of the third box 160 through a hollow wiring arm. The power cord in the lighting unit 400 can pass through the hollow structure of the wiring arm into the third box 160 and be introduced into the second box 140 through the support tube 150 to be electrically connected to the controller. The light source of the lighting unit 400 shines downward from its bottom. The lighting unit 400 has a circular structure and its inner diameter is larger than the outer diameter of the lifting frame 500.

[0037] More in detail, such as Figure 5 and Figure 6As shown, the drive unit 600 includes a frame 610, a drive motor 620, a reel 630, a first fixed pulley 640, a second fixed pulley 650, and a cable 660. The side of the second housing 140 is provided with studs and mounting beams 680. A fourth through hole is provided on the frame 610, which is fitted onto the stud and tightened with a nut, thus fixing the frame 610 inside the second housing 140. There are two mounting beams 680, symmetrically distributed on both sides of the frame 610. A first pulley bracket 641 is mounted on the mounting beam 680, and the first fixed pulleys 640 are installed within the first pulley bracket 641. The installation direction of 640 is tilted to the side and downward so that the two first fixed pulleys 640 are arranged in a figure-eight shape. The drive motor 620 is fixedly installed on the frame 610, and the reel 630 is rotatably installed on the frame 610. The axis of the reel 630 is parallel to the axis of the output shaft of the drive motor 620. A pulley assembly 670 is installed between the output shaft of the drive motor 620 and the reel 630. The pulley assembly 670 consists of a driving pulley, a driven pulley and a transmission belt. The pulley assembly 670 is a common transmission structure in machinery and is common knowledge to those skilled in the art. It will not be described in detail here.There are two second fixed pulleys 650, each of which is mounted inside the third housing 160 via a second pulley bracket 651. A first wire-passing hole 162 and a clearance opening 163 are provided on the limiting surface 161. There are two cables 660, one end of which is connected to opposite sides of the reel 630, with the connection points symmetrically arranged around the axis of the reel 630. The other end of the cables 660 passes sequentially through the first fixed pulley 640, the support tube 150, and the second fixed pulley 650. The fixed pulley 650 and the first cable passage hole 162 are fixedly connected to the lifting frame 500. A limit switch 170 is installed at the bottom of the third housing 160. The contact end of the limit switch 170 extends downward from the clearance opening 163. When the reel 630 is wound up, the two cables 660 can be wound onto the reel 630 synchronously, thereby causing the two cables 660 to drive the two connection points of the lifting frame 500 to rise synchronously. When the top surface of the pressure ring 530 at the top of the lifting frame 500 touches the contact end of the limit switch 170, the limit switch is activated. When switch 170 sends a signal to the controller, the controller immediately stops the drive motor 620 to achieve upper limit protection, preventing overshooting, cable breakage, or motor burnout. When it is necessary to move the lifting frame 500 downward, the drive motor 620 reverses, thereby driving the reel 630 to reverse as well. Under the gravity of the lifting frame 500, the lifting frame 500 can automatically slide downward. It is worth noting that the length of the cable 660 is designed based on the height of the pole 100, with the standard being that the travel of the lifting frame 500 is at the limit surface. The distance between 161 and the ground is two-thirds to three-quarters, and when the reel 630 unwinds the cable 660 until it is completely unwound, the edge of the cover 511 of the top cover 510 will not touch the ground and will always maintain a safe distance of about half a meter. Furthermore, when the reel 630 continues to rotate in the original direction, the cable 660 can be rewound onto the reel 630, causing the cable 660 to pull the lifting frame 500 to continue lifting, thus enabling the annular scraper 520 to reciprocate and scrape the outside of the pole 100.

[0038] More in detail, such as Figure 4 As shown, a second wire passage hole 531 is provided on the pressure ring 530, a third wire passage hole 521 is provided on the annular scraper 520, a nail hole 512 is provided on the top cover 510, and a connecting column 550 is installed on the lifting frame 500. One end of the connecting column 550 passes through the nail hole 512, the third wire passage hole 521 and the second wire passage hole 531 respectively and is fixedly connected to the other end of the cable 660. The upper end of the connecting column 550 is provided with a wire hole, a threaded section or a crimping connector. The end of the cable 660 is fixed to the connecting column 550 by a wire clamp, a locking connector or a threaded fastener to ensure sufficient connection strength and prevent the cable from breaking or falling off during long-term lifting.

[0039] Next, the working principle of a smart street light in this embodiment will be described in detail to enable those skilled in the art to better understand the present invention: When the smart street light is in normal use, the lifting frame 500 and the top cover 510 rise to the top of the pole 100. The light source of the lighting unit 400 shines downwards, and the light can penetrate the transparent top cover 510. Because the inner diameter of the lighting unit 400 is larger than the outer diameter of the lifting frame 500, their positions are staggered, preventing the light source of the lighting unit 400 from being blocked. The camera of the camera unit 300 can rotate 360 ​​degrees. Because the observation window 120 has high transparency, the camera can monitor the surrounding environment of the pole 100. The Bluetooth speaker unit 540, as a sound-emitting device, is installed on the top side of the top cover 510, thereby amplifying the sound. When pedestrians use the display unit 200 or the Bluetooth speaker unit 540 to play media audio, it not only improves the sound quality... Moreover, it will not produce sound leakage that would disturb pedestrians. When the outside of the pole 100 needs to be cleaned, cleaning staff can use a water hose to rinse the outside of the pole 100, and then use the button unit 700 to put the smart street light into cleaning mode. In cleaning mode, the controller controls the drive motor 620 to drive the lifting frame 500 to move up and down, so that the annular scraper 520 installed on the lifting frame 500 can wipe away dirt from the sides of the pole 100, the observation window 120 and the display window 110. When pedestrians need to take temporary shelter from the rain, they can input a command to the controller through the button unit 700. The controller controls the drive motor 620 to rotate forward, reverse or stop, so that the top cover 510 can be raised and lowered and locked at a suitable height to match the pedestrian to achieve the rain shelter function.

[0040] In summary, in this embodiment, the display unit 200 and camera unit 300 of the smart street light are both installed inside the pole 100 and can be protected by the display window 110 and the observation window 120, respectively. A lifting frame 500 is fitted on the outside of the pole 100. An annular scraper 520 and a top cover 510 are installed on the lifting frame 500. When the lifting frame 500 slides along the pole 100, the annular scraper 520 can scrape away dirt from the outer surface of the pole 100, the display window 110 and the observation window 120. The top cover 510 can also serve as a rain shield, and pedestrians can adjust the height of the top cover 510 according to their own height to prevent side leakage and improve the rain protection effect.

[0041] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the invention and are protected by patent law.

Claims

1. A smart street light, comprising a pole, a display screen unit, a camera unit, and a lighting unit, characterized in that: The rod body has a display window and an observation window on its side. The display screen unit and the camera unit are installed inside the rod body. The display screen unit is positioned opposite the display window, and the camera unit is positioned opposite the observation window. The observation window is arranged around the outside of the rod body. The outer surfaces of the display window and the observation window are flush with the outer surfaces of the rod body. A lifting frame is fitted around the outer periphery of the rod body. A top cover and an annular scraper are installed on the lifting frame. The inner side of the annular scraper abuts against the outer surface of the rod body. A driving unit is installed between the rod body and the lifting frame. The driving unit can drive the lifting frame to slide along the rod body. The display window, the observation window, and the top cover are made of colorless, transparent, and rigid material.

2. The smart street light according to claim 1, characterized in that, The bottom of the top cover has an opening, the lifting frame is fixedly installed inside the top cover, the annular scraper is installed on the top of the top cover through a pressure ring, the annular scraper is sandwiched between the pressure ring and the top cover, and the side of the top cover has a spherical structure.

3. The smart street light according to claim 2, characterized in that, A Bluetooth speaker unit is also installed at the bottom of the lifting frame.

4. The smart street light according to claim 2, characterized in that, The rod includes a first housing, a second housing, and a support tube. The first housing is located above the second housing. The support tube connects the bottom of the first housing and the top of the second housing and communicates with the interior of the first housing and the second housing. The camera unit is installed at the bottom of the first housing, and the display unit is installed inside the second housing.

5. The smart street light according to claim 4, characterized in that, The observation window has a ring structure. The bottom of the first box has a first limiting ring that protrudes outward, and the top of the second box has a second limiting ring that protrudes outward. The upper end of the observation window is fitted around the outer periphery of the first limiting ring and abuts against the bottom of the first box. The lower end of the observation window is fitted around the outer periphery of the second limiting ring and abuts against the top of the second box.

6. The smart street light according to claim 4, characterized in that, The top of the first box is provided with a third box, the interior of the third box is connected to the interior of the first box, the outer side of the third box protrudes outward from the outer side of the first box to form a limiting surface at the bottom of the third box, and the lighting unit is a ring structure and is fixedly connected to the side of the third box.

7. The smart street light according to claim 6, characterized in that, The drive unit includes a frame, a drive motor, a reel, a first fixed pulley, a second fixed pulley, and cables. The frame and the first fixed pulley are installed in the second housing. The drive motor and the reel are installed on the frame. The output shaft of the drive motor is connected to the reel via a pulley assembly. The second fixed pulley is installed in the third housing. There are two first and two second fixed pulleys, symmetrically arranged with the reel as the center. The limiting surface has a first cable passage hole. There are two cables. One end of each cable is connected to two opposite sides of the reel, and the other end of the cable passes through the first fixed pulley, the support tube, the second fixed pulley, and the first cable passage hole in sequence and is fixedly connected to the lifting frame.

8. The smart street light according to claim 7, characterized in that, The pressure ring has a second wire passage hole, the annular scraper has a third wire passage hole, the top cover has a nail hole, and the lifting frame is equipped with a connecting column. One end of the connecting column passes through the nail hole, the third wire passage hole and the second wire passage hole respectively and is fixedly connected to the other end of the cable.

9. The smart street light according to claim 6, characterized in that, The limiting surface has a clearance opening, and a limit switch is installed at the bottom of the third housing. The contact end of the limit switch extends downward from the clearance opening.

10. The smart street light according to claim 1, characterized in that, The rod body has a clearance groove on its side, which is located below the display window. A button unit is provided at the bottom of the clearance groove, and the clearance groove has an inclined guide surface.

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