Intelligent composite well lid based on solar energy and energy storage light emission and control method thereof
By combining solar energy and energy storage for light emission, the main body of the manhole cover uses a light sensor to control the energy-saving light strip, which solves the problems of poor visibility and high energy consumption of manhole covers at night, and achieves long-lasting warning and convenient maintenance through self-powered power supply.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- VOCATIONAL & TECH COLLEGE OF INNER MONGOLIA AGRI UNIV
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-14
AI Technical Summary
Existing manhole covers have poor visibility at night or in poor lighting conditions, and their reliance on external power sources leads to high energy consumption and difficult maintenance, thus failing to effectively improve the warning effect.
The manhole cover body is made by combining solar panels, energy storage batteries and light sensors through molding process. It consists of a transparent upper surface, an energy storage and light-emitting coating and a bottom layer. The light sensor detects the light intensity and controls the energy-saving light strip to automatically light up and turn off at a timer under low light conditions, thus achieving self-sufficient supplemental lighting.
Provides lasting, high-visibility warnings in low-light conditions, reduces energy consumption, simplifies maintenance processes, enhances public safety, and achieves a green and environmentally friendly self-powered solution.
Smart Images
Figure CN122383015A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of municipal infrastructure technology, and in particular to an intelligent composite manhole cover based on solar energy and energy storage luminescence, and its control method. Background Technology
[0002] Manhole covers, an indispensable part of urban infrastructure, are widely distributed in public places such as roads, squares, and residential areas. Their safety is directly related to public safety and traffic order. Traditional manhole covers are mostly made of cast iron or concrete, which has problems such as being heavy, easy to steal, and causing significant noise. A more prominent drawback is that their visibility is extremely poor at night or in low-light conditions, posing a serious potential threat to pedestrians and vehicles.
[0003] To improve the warning effect, several improvements have emerged in existing technologies. One is to coat the manhole cover surface with reflective paint or fluorescent materials. However, this passive lighting solution relies entirely on external light sources (such as vehicle headlights), becomes completely ineffective in the dark, and suffers from weak light intensity and short duration, resulting in an unsatisfactory warning effect. Another approach is to use illuminated manhole covers with built-in LED lights. While this solution can actively emit light, it typically requires an external municipal power supply, leading to complex wiring, high costs, and significant energy consumption due to a lack of intelligent control. Furthermore, existing illuminated manhole covers generally integrate electrical components with the structural body; once internal components fail, maintenance is extremely difficult, often requiring complete replacement, resulting in poor economic efficiency and severely limiting its widespread application.
[0004] Therefore, existing manhole covers have many drawbacks, such as limited functionality, insufficient or unreliable nighttime warning effects, high energy consumption, and inconvenient maintenance. Summary of the Invention
[0005] The purpose of this invention is to provide an intelligent composite manhole cover based on solar energy and energy storage luminescence, and its control method. This invention provides the following technical solution: A smart composite manhole cover based on solar energy and energy storage lighting includes a manhole cover body, a solar panel, an energy storage battery, an energy-saving light strip, a controller, and a light sensor. The main body of the manhole cover is integrally formed from recycled resin material through a molding process. Its structure, from top to bottom, includes a transparent upper surface layer, an energy-storing and light-emitting coating, and a bottom layer. The solar panel is embedded in the middle area of the main body of the manhole cover, and the upper surface of the solar panel is covered by the transparent upper surface layer; An energy storage battery is disposed below the solar panel and electrically connected to the solar panel for storing the electrical energy generated by the solar panel; The inner edge area of the manhole cover body is provided with multiple drainage holes that penetrate its thickness; The energy-saving light strip is located around the solar panel and on the outer ring of the manhole cover body; The light-sensing device is installed in the reserved mounting position on the main body of the manhole cover and is close to the solar panel to detect the light intensity of the environment in which the energy-storing luminescent coating is located. The controller is electrically connected to the light sensor, the energy storage battery, and the energy-saving lamp, respectively. The controller is configured to: receive the ambient light intensity signal detected by the light sensor; when the ambient light intensity is lower than a preset threshold, control the energy-saving light strip to light up for supplemental lighting; and control the energy-saving light strip to turn off after it has been lit for a preset duration.
[0006] The preferred embodiment of the intelligent composite manhole cover based on solar energy and energy storage light emission is that the preset threshold is 100 lumens and the preset duration is 5 to 10 minutes.
[0007] The preferred embodiment of the intelligent composite manhole cover based on solar energy and energy storage luminescence is that the thickness of the energy storage luminescence coating is 1.5mm to 2.5mm. The coating is made by mixing energy storage luminescence material with a transparent resin carrier and uniformly applying it by scraping, spraying or roller coating processes.
[0008] The preferred embodiment of the intelligent composite manhole cover based on solar energy and energy storage luminescence is that the energy storage luminescence material is selected from rare earth-doped aluminate or silicate; and the transparent resin carrier is selected from epoxy resin or polyurethane.
[0009] The preferred embodiment of the intelligent composite manhole cover based on solar energy and energy storage and light emission is that the drainage hole is a conical hole or a stepped hole with a small upper diameter and a large lower diameter.
[0010] The preferred embodiment of the intelligent composite manhole cover based on solar energy and energy storage light is that the solar panel, the energy storage battery, the energy-saving light strip, the light sensor and the controller are integrated into an electrical module unit; a waterproof sealing structure is provided between the electrical module unit and the non-electrical parts of the manhole cover body.
[0011] The preferred embodiment of the intelligent composite manhole cover based on solar energy and energy storage and light emission is that the waterproof sealing structure includes a sealing ring, a waterproof encapsulating adhesive, and a transparent or semi-transparent sealing adhesive layer. The sealing ring is arranged around the solar panel and is compressed between the edge of the solar panel and the mounting groove of the manhole cover body; The energy storage battery and controller are completely encapsulated by waterproof encapsulating glue. The LED beads of the energy-saving LED strip are encapsulated using a potting process, completely covered by a high-transmittance epoxy resin sealant layer to form an integrated waterproof LED strip. The energy-saving LED strip and the controller are connected by waterproof connectors with an IP67 or higher rating.
[0012] The preferred embodiment of the intelligent composite manhole cover based on solar energy and energy storage luminescence is that the light-sensing device is a photoresistor or a photoelectric sensor, with its light-sensing surface facing the transparent upper surface; an annular sealing ring or silicone rubber potting compound is provided between the light-sensing device and the mounting hole for sealing. The signal output terminal of the light sensor is electrically connected to the signal input interface of the controller via a wire; the wire is laid along a preset groove and is sealed or potted together with the wire of the energy-saving light strip for protection.
[0013] The preferred embodiment of the intelligent composite manhole cover based on solar energy and energy storage and light emission is that the bottom layer of the manhole cover body is a detachable structure to provide an operating channel for maintaining or replacing the electrical module unit.
[0014] A control method for an intelligent composite manhole cover based on solar energy and energy storage luminescence, the method comprising the following steps: Step 1: System initialization. The light sensor begins to continuously detect the ambient light intensity and sends the detection signal to the controller. Step 2: The controller compares the received light intensity value with a preset threshold; Step 3: When the light intensity value is lower than the preset threshold, the controller generates a drive signal to control the energy-saving light strip to light up; Step 4: While controlling the energy-saving LED strip to light up, the controller starts a timer to begin timing; Step 5: When the timer records a preset duration, the controller cuts off the drive signal and controls the energy-saving LED strip to turn off. Step Six: After the energy-saving light strip is turned off, the controller returns to Step Two and continues the cycle of light intensity detection and judgment.
[0015] The beneficial effects of this invention are: This invention creatively combines an energy-storing luminescent coating with a light-sensing device, a controller, and an energy-saving LED light strip. The energy-storing luminescent coating provides basic, continuous, and soft background light, while the intelligent control system automatically activates high-brightness LED light strips for enhanced supplementary lighting when ambient light is insufficient. This dual-protection mechanism ensures that the manhole cover provides clear, conspicuous, and long-lasting warning signs under any low-light conditions, such as at night, at dusk, or in rainy or foggy weather, fundamentally improving the level of public safety.
[0016] This invention achieves a self-sufficient closed-loop energy system, completely eliminating reliance on traditional external power supplies, eliminating wiring costs, and embodying a green and environmentally friendly concept. More importantly, by using a light sensor and controller to trigger a timed shutdown when the light level falls below a threshold, it achieves on-demand supplemental lighting, perfectly solving the problems of high energy consumption or wasteful constant illumination in traditional LED manhole covers. This greatly extends the system's operating time under no-light conditions and reduces the overall lifecycle maintenance costs.
[0017] A key improvement of this invention lies in integrating core electrical components such as solar panels, energy storage batteries, and controllers into independent electrical module units, which are then encapsulated by a removable bottom layer and a waterproof sealing structure. This design separates the complex electrical system from the mechanical structure. When the electrical components require maintenance or replacement, the entire manhole cover does not need to be replaced; only the bottom layer needs to be removed to maintain the module, greatly simplifying the maintenance process and saving maintenance time and costs.
[0018] The manhole cover is made of recycled resin and molded in one piece using a molding process, making it not only environmentally friendly but also possessing excellent mechanical strength, corrosion resistance, and impact resistance. The transparent upper layer effectively protects the underlying functional layers and electrical components. Drainage holes on the outer ring allow for timely removal of accumulated water, prevent slippage, and balance air pressure. The layered structure and sealing design ensure long-term stable operation in various harsh outdoor environments. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of an intelligent composite manhole cover based on solar energy and energy storage luminescence; Figure 2 This is a schematic diagram of the internal structure of an intelligent composite manhole cover based on solar energy and energy storage for light emission; Figure 3 This is a schematic diagram of the electrical system for intelligent composite manhole covers.
[0020] Figure 4 This is a flowchart of the intelligent composite manhole cover control system.
[0021] The components are: 1-manhole cover body, 2-solar panel, 3-energy storage battery, 4-energy-saving light strip, 5-controller, 6-light sensor, 7-transparent upper surface layer, 8-energy-storage light-emitting coating, 9-bottom layer, 10-drainage hole. Detailed Implementation
[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0023] like Figure 1-4 As shown, a smart composite manhole cover based on solar energy and energy storage light emission includes: a manhole cover body 1, a solar panel 2, an energy storage battery 3, an energy-saving light strip 4, a controller 5, and a light sensor 6. The main body 1 of the manhole cover is integrally formed from recycled resin material through a molding process. Its structure, from top to bottom, includes a transparent upper surface layer 7, an energy-storing and light-emitting coating 8, and a bottom layer 9. The solar panel 2 is embedded in the middle area of the manhole cover body 1, and the upper surface of the solar panel 2 is covered by the transparent upper surface layer 7; An energy storage battery 3 is disposed below the solar panel 2 and electrically connected to the solar panel 2, for storing the electrical energy generated by the solar panel 2; The inner edge region of the manhole cover body 1 is provided with multiple drainage holes 10 that penetrate its thickness; The energy-saving light strip 4 is disposed around the solar panel 2 and in the outer ring area of the manhole cover body 1; The light-sensing device 6 is installed in the reserved installation position of the manhole cover body 1 and is close to the solar panel 2, and is used to detect the light intensity of the environment in which the energy-storing luminescent coating 8 is located. The controller 5 is electrically connected to the light sensor 6, the energy storage battery 3, and the energy-saving light strip 4, respectively. The controller 5 is configured to: receive the ambient light intensity signal detected by the light sensor 6; when the ambient light intensity is lower than a preset threshold, control the energy-saving light strip 4 to light up for supplemental lighting; and after the energy-saving light strip 4 has been lit for a preset duration, control it to turn off.
[0024] The preset threshold is 100 lumens, and the preset duration is 5 to 10 minutes.
[0025] The thickness of the energy-storing luminescent coating 8 is 1.5 mm to 2.5 mm. The coating is made by mixing the energy-storing luminescent material with a transparent resin carrier and uniformly applying it by scraping, spraying or roller coating processes.
[0026] The energy-storing and luminescent material is selected from rare-earth-doped aluminates or silicates; the transparent resin carrier is selected from epoxy resin or polyurethane.
[0027] The drainage hole 10 is a conical hole or a stepped hole with a small upper diameter and a large lower diameter.
[0028] The solar panel 2, the energy storage battery 3, the energy-saving light strip 4, the light sensor 6, and the controller 5 are integrated into an electrical module unit; a waterproof sealing structure is provided between the electrical module unit and the non-electrical parts of the manhole cover body 1.
[0029] The waterproof sealing structure includes a sealing ring, a waterproof encapsulating adhesive, and a transparent or semi-transparent sealant layer. The sealing ring is arranged around the solar panel 2 and is compressed between the edge of the solar panel 2 and the mounting groove of the manhole cover body 1; The energy storage battery 3 and the controller 5 are completely encapsulated by waterproof encapsulating glue. The LED beads of the energy-saving light strip 4 are encapsulated using a potting process, and are completely covered by a high-transmittance epoxy resin sealant layer to form an integrated waterproof light strip. The energy-saving light strip 4 and the controller 5 are connected by a waterproof connector with an IP67 or higher rating.
[0030] The photosensitive device 6 is a photoresistor or a photoelectric sensor, with its photosensitive surface facing the transparent upper surface layer 7; an annular sealing ring or silicone rubber potting compound is provided between the photosensitive device 6 and the mounting hole for sealing. The signal output terminal of the light sensor 6 is electrically connected to the signal input interface of the controller 5 via a wire; the wire is laid along a preset groove and is sealed or potted together with the wire of the energy-saving light strip 4 for protection.
[0031] The bottom layer 9 of the manhole cover body 1 is a detachable structure to provide an operating channel for maintaining or replacing the electrical module unit.
[0032] A control method for an intelligent composite manhole cover based on solar energy and energy storage luminescence includes the following steps: Step 1: System initialization. The light sensor 6 starts to continuously detect the ambient light intensity and sends the detection signal to the controller 5. Step 2: The controller 5 compares the received light intensity value with a preset threshold; Step 3: When the light intensity value is lower than the preset threshold, the controller 5 generates a drive signal to control the energy-saving light strip 4 to light up; Step 4: While controlling the energy-saving light strip 4 to light up, the controller 5 starts a timer to begin timing; Step 5: When the timer records a preset duration, the controller 5 cuts off the drive signal and controls the energy-saving LED strip 4 to turn off. Step 6: After the energy-saving light strip 4 is turned off, the controller 5 returns to step 2 and continues the cycle of light intensity detection and judgment.
[0033] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.
Claims
1. A smart composite manhole cover based on solar energy and energy storage luminescence, characterized in that, include: Manhole cover body (1), solar panel (2), energy storage battery (3), energy-saving light strip (4), controller (5), light sensor (6); The main body of the manhole cover (1) is integrally formed by molding recycled resin material. Its structure from top to bottom includes a transparent upper surface layer (7), an energy storage and light-emitting coating (8), and a bottom layer (9). The solar panel (2) is embedded in the middle area of the manhole cover body (1), and the upper surface of the solar panel (2) is covered by the transparent upper surface layer (7); An energy storage battery (3) is disposed below the solar panel (2) and electrically connected to the solar panel (2) for storing the electrical energy generated by the solar panel (2); The inner edge region of the manhole cover body (1) is provided with multiple drainage holes (10) that penetrate its thickness. The energy-saving light strip (4) is set around the solar panel (2) and the outer ring area of the manhole cover body (1); The light-sensing device (6) is installed in the reserved installation position on the main body of the manhole cover (1) and is close to the solar panel (2) to detect the light intensity of the environment in which the energy-storing luminescent coating (8) is located. The controller (5) is electrically connected to the light sensor (6), the energy storage battery (3), and the energy-saving light strip (4), respectively. The controller (5) is configured to receive the ambient light intensity signal detected by the light sensor (6), and when the ambient light intensity is lower than a preset threshold, control the energy-saving light strip (4) to light up for supplementary lighting, and control the energy-saving light strip (4) to turn off after it has been lit for a preset time.
2. The intelligent composite manhole cover based on solar energy and energy storage luminescence according to claim 1, characterized in that, The preset threshold is 100 lumens, and the preset duration is 5 to 10 minutes.
3. The intelligent composite manhole cover based on solar energy and energy storage luminescence according to claim 1, characterized in that, The thickness of the energy storage and light-emitting coating (8) is 1.5 mm to 2.5 mm. The coating is made by mixing the energy storage and light-emitting material with a transparent resin carrier and uniformly applying it by scraping, spraying or roller coating processes.
4. The intelligent composite manhole cover based on solar energy and energy storage luminescence according to claim 3, characterized in that, The energy-storing and luminescent material is selected from rare-earth-doped aluminates or silicates; the transparent resin carrier is selected from epoxy resin or polyurethane.
5. The intelligent composite manhole cover based on solar energy and energy storage luminescence according to claim 1, characterized in that, The drainage hole (10) is a conical hole or a stepped hole with a small upper diameter and a large lower diameter.
6. The intelligent composite manhole cover based on solar energy and energy storage luminescence according to claim 1, characterized in that, The solar panel (2), the energy storage battery (3), the energy-saving light strip (4), the light sensor (6) and the controller (5) are integrated into an electrical module unit; a waterproof sealing structure is provided between the electrical module unit and the non-electrical part of the manhole cover body (1).
7. A smart composite manhole cover based on solar energy and energy storage luminescence according to claim 6, characterized in that, The waterproof sealing structure includes a sealing ring, a waterproof encapsulating adhesive, and a transparent or semi-transparent sealant layer. The sealing ring is arranged around the solar panel (2) and is compressed between the edge of the solar panel (2) and the mounting groove of the manhole cover body (1); The energy storage battery (3) and the controller (5) are completely encapsulated by waterproof encapsulating glue. The LED beads of the energy-saving light strip (4) are encapsulated by a potting process and completely covered by a high-transmittance epoxy resin sealant layer to form an integrated waterproof light strip. The energy-saving light strip (4) and the controller (5) are connected by a waterproof connector with an IP67 or higher rating.
8. The intelligent composite manhole cover based on solar energy and energy storage luminescence according to claim 1, characterized in that, The photosensitive device (6) is a photoresistor or a photoelectric sensor, with its photosensitive surface facing the transparent upper surface layer (7); an annular sealing ring or silicone rubber potting compound is provided between the photosensitive device (6) and the mounting hole for sealing; The signal output terminal of the light sensor (6) is electrically connected to the signal input interface of the controller (5) via a wire; the wire is laid along a preset groove and is sealed or potted together with the wire of the energy-saving light strip (4).
9. A smart composite manhole cover based on solar energy and energy storage luminescence according to claim 1, characterized in that, The bottom layer (9) of the manhole cover body (1) is a detachable structure to provide an operating channel for maintaining or replacing the electrical module unit.
10. A control method for an intelligent composite manhole cover based on solar energy and energy storage luminescence as described in any one of claims 1 to 9, characterized in that, The method includes the following steps: Step 1: System initialization. The light sensor (6) starts to continuously detect the ambient light intensity and sends the detection signal to the controller (5). Step 2: The controller (5) compares the received light intensity value with a preset threshold; Step 3: When the light intensity value is lower than the preset threshold, the controller (5) generates a drive signal to control the energy-saving light strip (4) to light up; Step 4: While controlling the energy-saving light strip (4) to light up, the controller (5) starts a timer to begin timing; Step 5: When the timer records the duration of the preset duration, the controller (5) cuts off the drive signal and controls the energy-saving light strip (4) to turn off; Step 6: After the energy-saving light strip (4) is turned off, the controller (5) returns to step 2 and continues the cycle of light intensity detection and judgment.