Solar cold-resistant intelligent light-emitting traffic sign board and solar cold-resistant intelligent light-emitting traffic system

Abstract

The utility model discloses a solar cold-resistant intelligent luminous traffic sign, and relates to the technical field of traffic safety and new energy application. In order to overcome the technical defect that a traffic sign board scheme which can adapt to an extremely cold environment, realize intelligent power consumption management, have remote monitoring capability and emit light stably is lacked in the prior art, the technical scheme provided by the utility model is as follows: the solar cold-resistant intelligent light-emitting traffic sign board comprises a solar cell panel, the power supply is mounted at the top of the signboard and used for collecting light energy; the light-emitting signboard is arranged on the supporting structure, is internally provided with an LED light-emitting assembly and is used for displaying traffic sign information; the control module is used for adjusting the luminance according to the illumination intensity and controlling the operation state; and the cylindrical supporting steel pipe is used for supporting the luminous signboard, is provided with a flange plate at the bottom and is fixedly connected with the ground. The system can be used in a road traffic sign illumination and intelligent monitoring system in a cold region.

Description

Technical Field

[0001] It involves the fields of traffic safety and new energy application technology, specifically solar-powered cold-resistant intelligent luminous traffic signs. Background Technology

[0002] With the development of intelligent transportation and green energy technologies, solar-powered traffic signs are gradually being promoted and applied in urban roads, highways, and remote areas. These devices rely on photovoltaic modules to collect solar energy, store it in batteries, and use light-emitting elements to improve the visibility of the signs at night and in inclement weather, offering the advantages of energy saving, environmental protection, and convenient deployment. Typical applications include solar-powered LED traffic signs in cities and solar-powered warning lights in mountainous areas or along highways.

[0003] In existing technologies, some illuminated traffic signs have integrated solar panels and lithium battery packs, enabling them to charge during the day and discharge at night. However, most existing solar-powered illuminated traffic signs are designed for general climatic conditions, and the following prominent problems remain when used in cold regions:

[0004] Low-temperature battery failure: Conventional lithium batteries experience a significant decrease in charge and discharge performance below -20°C, and may even fail to function, causing signs to fail to illuminate continuously and seriously affecting traffic safety.

[0005] Conflict between heat preservation and energy consumption: Some devices use heating measures to maintain the battery operating temperature, but poor heat preservation or excessive power consumption exacerbates the burden on the energy storage system and shortens the continuous working time of the device.

[0006] Lack of intelligent management mechanisms: Most devices lack real-time monitoring and remote management functions for key operating parameters such as battery status, temperature, and voltage, resulting in delayed fault response and high maintenance costs.

[0007] Low luminous efficiency: Traditional control methods often cannot automatically adjust brightness according to ambient light, which can easily lead to ineffective light emission during the day and insufficient brightness at night, wasting energy and affecting recognition clarity.

[0008] In summary, current technologies lack a traffic sign solution that can adapt to extreme cold environments, achieve intelligent power consumption management, possess remote monitoring capabilities, and provide stable illumination. Therefore, there is an urgent need to design a solar-powered, cold-resistant, intelligent luminous traffic sign to address technical issues such as unstable equipment operation, low energy efficiency, and maintenance difficulties under low-temperature conditions. Utility Model Content

[0009] To address the shortcomings of existing technologies, such as the lack of a traffic sign solution that can adapt to extreme cold environments, achieve intelligent power management, possess remote monitoring capabilities, and provide stable illumination, this utility model provides the following technical solution:

[0010] Solar-powered, cold-resistant, intelligent, luminous traffic signs, including:

[0011] Solar panels, installed on top of the sign, are used to collect solar energy and generate electricity;

[0012] Illuminated signs are mounted on a supporting structure and contain built-in LED light-emitting components to display traffic sign information;

[0013] The control module is used to adjust the luminous brightness and control the operating status according to the light intensity;

[0014] A cylindrical support steel pipe is used to support the luminous sign, and a flange is provided at the bottom for fixed connection with the ground.

[0015] Furthermore, a preferred embodiment is provided, which also includes a light sensor installed on the luminous sign to sense the ambient light intensity.

[0016] Furthermore, a preferred embodiment is provided, in which a lithium battery pack is electrically connected to the solar panel and the luminous signboard for storing electrical energy and supplying power.

[0017] Furthermore, a preferred embodiment is provided in which a cold-resistant and heat-insulating material is wrapped around the outside of the lithium battery pack and the control module for heat insulation.

[0018] Furthermore, a preferred embodiment is provided, in which a temperature-controlled heating system is located near the lithium battery pack and is controlled to start and stop by a control module, for heating the battery under low-temperature conditions.

[0019] Furthermore, a preferred embodiment is provided in which the lithium battery can maintain normal operating performance at an environment of -40°C.

[0020] Furthermore, a preferred embodiment is provided, wherein the cold-resistant insulation material has a multi-layer structure, including an inner layer of vacuum insulation board and an outer layer of high-density insulation foam.

[0021] Furthermore, a preferred embodiment is provided in which the control module is equipped with a wireless communication unit, which uses GPRS or LoRa to send the operating data to a remote back-end management platform.

[0022] Furthermore, in a preferred embodiment, the outer layer of the luminous sign panel is made of low-temperature resistant acrylic material.

[0023] Based on the same inventive concept, this utility model also provides a solar-powered cold-resistant intelligent luminous traffic system, including at least two of the aforementioned signboards.

[0024] Compared with the prior art, the advantages of the technical solution provided by this utility model are as follows:

[0025] This invention utilizes a high-efficiency solar panel and employs low-temperature treatment technology to improve photoelectric conversion efficiency in low-temperature environments, enabling stable solar energy acquisition even in cold seasons and high-latitude regions. Compared to existing untreated solar modules, this invention significantly enhances charging capacity on sunny winter days, effectively extending the device's independent operating time.

[0026] This invention utilizes a high-capacity lithium battery and cold-resistant battery technology, enabling the battery to maintain stable charge and discharge performance even in environments ranging from -40℃ to -50℃. Compared to traditional lithium batteries that experience a sharp decline in performance or even malfunction in extremely cold conditions, this solution ensures the traffic signs can continue to illuminate in extreme weather, thus guaranteeing traffic safety.

[0027] This invention incorporates high-efficiency thermal insulation material on the exterior of the battery compartment and control module, and integrates a temperature-controlled heating system. This system automatically heats up when the temperature drops below a set threshold, such as -20°C, preventing battery failure due to excessive cold. Compared to existing designs with no heating or low heating efficiency, this approach improves cold resistance while avoiding excessive energy consumption, achieving a balance between power consumption and insulation performance.

[0028] This invention incorporates a light sensor and intelligent algorithms to achieve adaptive dimming, automatically adjusting the brightness based on changes in ambient light. Compared to traditional methods with fixed brightness or those relying solely on time control, this solution offers greater flexibility in responding to day / night cycles and weather variations, ensuring visibility and warning effectiveness at night and in low-visibility environments while saving energy.

[0029] This invention integrates an intelligent monitoring module to collect battery voltage, current, temperature, and other parameters in real time, and transmits them to the backend system via wireless communication, supporting remote monitoring and fault early warning. Compared with most existing equipment that relies on manual inspection, this method significantly improves management efficiency and fault response speed, while reducing maintenance costs.

[0030] This invention utilizes low-temperature resistant polymer materials and an integrated packaging design, achieving an excellent IP67 waterproof and dustproof rating, thus improving the equipment's operational stability in extreme climates. Compared to existing equipment with loose structures that are prone to water ingress and damage, this invention significantly extends its service life and reduces the failure rate.

[0031] This invention employs a cylindrical steel pipe support structure and flange fixing method, enhancing the equipment's resistance to wind and snow pressure. This structural design provides excellent stability in cold, snowy regions and is more suitable for long-term installations in extreme climates compared to conventional lightweight support structures.

[0032] It can be used in road traffic sign lighting and intelligent monitoring systems in cold regions. Attached Figure Description

[0033] Fig. 1 The front view of a solar-powered, cold-resistant, intelligent luminous traffic sign;

[0034] Fig. 2 Rear view of a solar-powered, cold-resistant, intelligent luminous traffic sign;

[0035] Fig. 3 This is a flowchart of the electronic control logic.

[0036] Among them, 1 is a solar panel, 2 is a light sensor, 3 is a luminous sign, 4 is a monitoring module, 5 is a cylindrical steel pipe, 6 is a cold-resistant insulation material, and 7 is a lithium battery. Detailed Implementation

[0037] To make the advantages and benefits of the technical solution provided by this utility model clearer, the technical solution provided by this utility model will now be described in further detail with reference to the accompanying drawings. Specifically:

[0038] Implementation Method 1: This implementation method provides a solar-powered, cold-resistant, intelligent luminous traffic sign, including:

[0039] Solar panel 1, installed on top of the sign, is used to collect solar energy and supply power;

[0040] Illuminated sign 3, mounted on the supporting structure, is equipped with LED light-emitting components to display traffic sign information;

[0041] The control module is used to adjust the luminous brightness and control the operating status according to the light intensity;

[0042] A cylindrical support steel pipe is used to support the luminous signboard 3, and a flange is provided at the bottom for fixed connection with the ground.

[0043] It also includes a light sensor 2, which is installed on the luminous sign 3 to sense the ambient light intensity.

[0044] Seven lithium batteries are electrically connected to the solar panel 1 and the luminous sign 3 to store electrical energy and provide power.

[0045] Cold-resistant and heat-insulating material 5 is wrapped around the lithium battery pack 7 and the control module for heat insulation.

[0046] A temperature-controlled heating system is located near the seven lithium battery banks and is controlled by a control module to start and stop, used to heat the batteries under low-temperature conditions.

[0047] The lithium battery 7 can maintain normal operating performance in an environment of -40℃.

[0048] The cold-resistant insulation material 5 has a multi-layer structure, including an inner vacuum insulation board and an outer high-density insulation foam.

[0049] The control module is equipped with a wireless communication unit, which uses GPRS or LoRa to send the operating data to the remote back-end management platform.

[0050] The outer layer of the panel of the luminous sign 3 is made of low-temperature resistant acrylic material.

[0051] It also provides a solar-powered, cold-resistant, intelligent, luminous traffic system, including at least two of the aforementioned signs.

[0052] Implementation Method Two: Combination Figs. 1-3 This embodiment describes the technical solution provided above in further detail through specific examples. Specifically:

[0053] like Figs. 1-2 As shown, the solar-powered cold-resistant intelligent luminous traffic sign of this utility model comprises the following components: solar panel 1, light sensor 2, luminous sign 3, monitoring module 4, cylindrical steel pipe 5, cold-resistant insulation material 5 layers, lithium battery 7 groups, and together with the internal battery management system (BMS), heating system and wireless communication module, it constitutes a complete control system.

[0054] I. Solar Power Supply Structure

[0055] Solar panel 1 is fixedly installed on top of the signboard. It uses high-efficiency monocrystalline silicon photovoltaic modules and is treated with low-temperature resistant encapsulation materials. Its tilt angle is adjustable (e.g., set in the range of 15°~45°), which facilitates optimization of light absorption efficiency according to regional latitude and seasonal solar incidence angle.

[0056] The core advantage of this solar panel lies in:

[0057] It possesses excellent low-temperature photoelectric conversion capability, and can stably output electrical energy even at temperatures below -30℃;

[0058] The maintenance-free design features a hydrophobic and snow-resistant coating on the surface, reducing the impact of snow accumulation on charging efficiency.

[0059] In conjunction with the intelligent power management system, it can extend the power supply time even when the weather is continuously cloudy.

[0060] II. High-capacity lithium battery 7 and cold-resistant protection system

[0061] The sign contains seven lithium batteries housed in a separate battery compartment. These batteries utilize cold-resistant lithium batteries specifically designed for low-temperature environments, enabling stable charging and discharging within a temperature range of -40℃ to +60℃.

[0062] The battery pack is covered with cold-resistant insulation material 5, with an inner layer of vacuum insulation board and an outer layer of high-density insulation foam, forming multiple insulation layers. The matching temperature control and heating system uses PTC ceramic heating elements for control and real-time temperature feedback through BMS. When the temperature inside the chamber is detected to be below -20℃, the heater is automatically activated to maintain the battery temperature within the optimal operating range (0℃~25℃).

[0063] The technical advantages of this section are:

[0064] The battery pack maintains good capacity retention even in extremely cold regions, preventing system crashes caused by sudden voltage drops.

[0065] The heating device operates automatically only in extremely cold weather to avoid redundant energy consumption;

[0066] The multi-layer insulation structure significantly reduces heat loss and improves thermal energy utilization efficiency;

[0067] III. Intelligent Light Control and Light Emitting Module

[0068] The illuminated sign 3 is the main body of the front panel, composed of pattern or text modules made of high-definition, high-brightness LEDs, and the surface of the panel is made of cold-resistant acrylic material. The light sensor 2 is located at the top center of the panel, with 360-degree ambient light sensing capability, which can detect the external light intensity in real time and transmit the data to the control module.

[0069] The LED lighting system employs PWM dimming control, linked with an environmental sensing module, to achieve intelligent dimming in the following scenarios:

[0070] The LED lights automatically turn off when sunlight is strong during the day to save energy.

[0071] The brightness is automatically adjusted in the evening or on cloudy or snowy days to improve visibility;

[0072] It automatically switches to high brightness at night to ensure the signs are clearly visible.

[0073] Its core advantage lies in:

[0074] Effectively saves energy and extends battery life;

[0075] It can still provide sufficient brightness under sudden weather conditions (such as blizzards and smog);

[0076] Avoid visual fatigue and improve driving safety.

[0077] IV. Intelligent Monitoring and Communication System

[0078] Monitoring module 4 is located inside the back of the sign and is connected to the battery, power supply, sensors, etc., responsible for collecting operating data such as current, voltage, and temperature. The module integrates an MCU control unit and a GPRS / LoRa wireless communication module, which can send the device status to the traffic management backend in real time.

[0079] In addition, the system is equipped with alarm logic. When abnormalities such as battery overcharging, over-discharging, or short circuit are detected, abnormal temperature, or LED failure, an alarm will be immediately triggered through the communication module to remind maintenance personnel to handle the situation in a timely manner.

[0080] The advantages of this module include:

[0081] Enables remote maintenance and status tracking, greatly reducing the cost of manual inspection;

[0082] Rapid early warning of anomalies shortens fault response time;

[0083] It supports centralized batch management on the back-end platform, improving the level of intelligence of urban transportation facilities.

[0084] V. Structural Stability Design

[0085] This utility model uses a cylindrical steel pipe 5 as the supporting column, and the lower end of the column is fixed to the ground through a flange, ensuring a stable and reliable installation. The entire sign body adopts an integrated encapsulation structure, achieving an IP67 protection rating and possessing excellent dustproof, waterproof, and snowproof performance. The outer shell is made of low-temperature resistant aluminum alloy, combining lightweight design with strong impact resistance.

[0086] The advantages of this structure are:

[0087] The supporting structure has high wind resistance and is suitable for wind and snow environments in plateau and mountainous areas.

[0088] The encapsulation structure can resist rain and snow erosion and ice damage;

[0089] Suitable for large-scale deployment, easy to maintain, and with standardized installation process.

[0090] In summary, this invention, through the integrated optimization of multiple technologies such as high-efficiency power supply, cold-resistant insulation, intelligent sensing, remote monitoring, and a stable structure, provides a solar-powered, cold-resistant, intelligent luminous traffic sign suitable for extremely cold environments. It possesses strong environmental adaptability, system stability, and energy efficiency. This device is particularly suitable for traffic safety signage needs in remote cold regions, highway tunnel entrances, and icy plateaus, and has broad application prospects and promotional value.

[0091] like Fig. 3 As shown,

[0092] I. Battery Pack Operating Status Monitoring Logic

[0093] The seven lithium battery packs serve as the core power supply components, and their operating status (voltage, current, and temperature) is monitored in real time by the battery management system (BMS). The signal acquisition circuit inside the BMS continuously outputs analog voltage and current signals from the battery packs, which are then converted into digital signals by the ADC module and transmitted to the main control unit.

[0094] The main control unit (MCU) determines whether the battery status is normal based on the following logic:

[0095] If the voltage is detected to be below the lower limit (e.g., 3.0V), an undervoltage control signal is issued to disconnect the load;

[0096] If the voltage exceeds the upper limit (e.g., 4.2V), an overcharge control signal will be issued to shut off the solar power input.

[0097] If an abnormal current or short circuit is detected, a protection signal will be issued immediately, and the system will enter emergency shutdown mode.

[0098] This logic ensures that the battery pack operates stably under safe electrical conditions, avoiding damage or safety hazards.

[0099] II. Temperature Sensing and Heating Control Logic

[0100] The temperature sensor collects the temperature inside the battery compartment in real time and outputs an analog signal. The MCU samples and calculates the signal to determine whether the temperature is below the start-up threshold (e.g., -20℃). If the low-temperature condition is met, the MCU immediately outputs a "heating on" control signal to the temperature control module, driving the PTC heater to start heating.

[0101] The temperature control logic has a closed-loop feedback characteristic:

[0102] When the temperature rises above the set safe range (e.g., +5℃), the MCU outputs a "heating off" signal to stop the heater from working.

[0103] Throughout the process, sampling, judgment, and output are performed at regular intervals (e.g., 5 seconds) to form an adaptive adjustment.

[0104] This control logic dynamically adjusts the operating status of the heating device through electrical signals to ensure that the battery pack maintains a reasonable temperature range in extremely cold environments.

[0105] III. Intelligent Brightness Adjustment Logic

[0106] The light sensor 2 outputs a light intensity signal to the control module in real time. The signal is usually an analog voltage (representing different light intensity levels), which is converted by the ADC and transmitted to the MCU.

[0107] The control logic is as follows:

[0108] When high ambient light intensity is detected (such as during the day), the MCU determines that no lighting is needed and outputs a signal to turn off the LED module.

[0109] When the light intensity drops to a preset threshold (such as at night or on a foggy day), the MCU outputs a PWM signal to control the LED driver module, so that the LED emits light at a specific duty cycle (i.e., brightness level);

[0110] Based on the actual light intensity, the MCU can adjust the PWM duty cycle to dynamically control the LED brightness.

[0111] This dimming control logic can effectively reduce energy consumption during the day and ensure clear display at night or in low visibility conditions.

[0112] IV. Communication Alarm and Remote Control Logic

[0113] When the control module detects the following abnormal event:

[0114] Battery overcharged, over-discharged, or short-circuited;

[0115] The battery compartment temperature is too high or too low;

[0116] Heating system malfunction, no response;

[0117] Abnormal signal from light sensor 2 (e.g., malfunction);

[0118] The MCU immediately generates a fault information packet and sends a data frame via a communication module (such as GPRS or LoRa) to the backend management platform. The communication module receives the MCU's serial signal and sends an alarm command via a wireless network. Upon receiving the command, the backend system can prompt maintenance personnel to take appropriate action.

[0119] In addition, the back-end platform can also send control commands (such as adjusting the brightness of the light source or remotely restarting the device) to the communication module. The communication module will parse the commands and return them to the MCU via the serial port. The MCU will then output the corresponding control signals to the target execution module to complete the remote control operation.

[0120] In summary, this utility model achieves coordinated intelligent management of power supply, cold resistance, lighting, and communication modules through a closed-loop electrical signal control structure of signal acquisition, judgment logic, control output, and feedback adjustment, greatly improving the safety, intelligence, and stability of traffic signs in cold regions.

[0121] The above description of the technical solution provided by this utility model through several specific embodiments is intended to highlight the advantages and benefits of the technical solution provided by this utility model. However, the above-described specific embodiments are not intended to limit this utility model. Any reasonable modifications and improvements to this utility model, combinations of embodiments, and equivalent substitutions based on the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A solar-powered, cold-resistant, intelligent luminous traffic sign, characterized in that: include: Solar panels, installed on top of the sign, are used to collect solar energy and generate electricity; Illuminated signs are mounted on a supporting structure and contain built-in LED light-emitting components to display traffic sign information; The control module is used to adjust the luminous brightness and control the operating status according to the light intensity; A cylindrical support steel pipe is used to support the luminous signboard, and a flange is provided at the bottom for fixed connection with the ground; It also includes a light sensor, which is installed on the luminous sign to sense the ambient light intensity. It also includes a lithium battery pack, electrically connected to the solar panel and the luminous sign, for storing electrical energy and supplying power; It also includes cold-resistant and heat-insulating materials, which are wrapped around the lithium battery pack and control module for heat insulation; It also includes a temperature-controlled heating system, which is located near the lithium battery pack and is controlled by the control module to start and stop, and is used to heat the battery under low temperature conditions; The control module is equipped with a wireless communication unit, which uses GPRS or LoRa to send the operating data to the remote back-end management platform.

2. The solar-powered, cold-resistant, intelligent luminous traffic sign according to claim 1, characterized in that, The cold-resistant insulation material has a multi-layer structure, including an inner layer of vacuum insulation board and an outer layer of high-density insulation foam.

3. The solar-powered, cold-resistant, intelligent luminous traffic sign according to claim 1, characterized in that, The outer layer of the luminous sign panel is made of low-temperature resistant acrylic material.

4. A solar-powered, cold-resistant, intelligent, luminous transportation system, characterized in that: Includes at least two of the signs as described in claim 1.

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