A DC charging system and method with lighting function

Abstract

The present invention discloses a DC charging system and method with lighting function, which relates to the technical field of DC charging and solves the technical problems of high development and maintenance costs, energy waste and potential safety hazards in the prior art. The present invention generates a lighting activation signal according to the collected external sound, and collects real-time images through an infrared camera module. When a person or vehicle is recognized in the real-time images, the LED lighting is controlled to turn on; otherwise, it enters the low-power mode, which helps to avoid energy waste caused by the lighting being always on. When the voltage of the backup battery is less than the voltage threshold, a charging activation signal is generated to charge the backup battery, and the voltage of the backup battery is detected in real time. When the real-time voltage is greater than the set charging threshold, the input power supply is turned off to stop charging and enter the low-power mode; otherwise, the backup battery is continuously charged until the real-time voltage is greater than the charging threshold. It can switch working modes, which helps to save energy and reduce energy waste.

Description

Technical Field

[0001] The present invention belongs to the field of DC charging, relates to DC charging technology with lighting function, and specifically is a lighting function DC charging system and method. Background Art

[0002] With the development of new energy vehicles, the charger has also developed. Currently, most home charging piles are installed in underground garages. If there is no lighting or the environment is relatively dark, users will also install a lighting system; the lighting charging system combines lighting and charging functions, enabling users to enjoy both lighting and charging services in environments such as underground garages without having to install and maintain two independent systems separately, improving the convenience of use; through the integration of the lighting charging system, the number of devices and the occupied space can be reduced, multiple functions can be integrated into one device, reducing space occupation and making more effective use of the space in the garage; and only one set of power distribution system needs to be installed for integrating the lighting system and the charging system, and the installation and maintenance costs are relatively low; therefore, the lighting charging system plays an important role in underground garages.

[0003] In the prior art, due to the dark environment in underground garages, a lighting and power distribution system needs to be installed. At the same time, to meet the charging needs of users, a charging and power distribution system also needs to be installed; installing two sets of systems requires a huge amount of work, and regular maintenance is required after the systems are put into operation, increasing the development and maintenance costs; the lighting system in underground garages basically works all the time, while the charging system is also in standby operation, resulting in waste of energy; and most of the lighting lamps installed in underground garages are fluorescent lamps, which are prone to failure and have a risk of falling off, posing potential safety hazards; therefore, there are problems of high development and maintenance costs, waste of energy, and potential safety hazards in the prior art.

[0004] The present invention provides a lighting function DC charging system and method to solve the above technical problems. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art; for this purpose, the present invention proposes a lighting function DC charging system and method to solve the technical problems of high development and maintenance costs, waste of energy, and potential safety hazards existing in the prior art.

[0006] To achieve the above object, the first aspect of the present invention provides a lighting function DC charging system, including: a charger main control module, a charger power module, a sound detection module, an infrared camera module, a driving mechanism, an input power supply, a charger interface, a backup battery, and an LED lighting lamp;

[0007] Sound detection module: Collect real-time information through the connected sensors, and judge whether to generate an activation signal according to the real-time information. If yes, generate an activation signal; if not, continuously detect the real-time information. Among them, the real-time information includes external sound and backup battery voltage; the activation signal includes a lighting activation signal and a charging activation signal;

[0008] Charger main control module: Based on the lighting activation signal, start the infrared camera module, collect real-time images through the infrared camera module, and judge whether lighting is required according to the real-time images. If yes, control the LED lighting to turn on; if not, enter the low-power mode and wait for the activation signal; and,

[0009] Based on the charging activation signal, activate the input power supply, charge the backup battery through the charger power module, and continuously detect the real-time voltage of the backup battery. Judge whether the backup battery is fully charged according to the real-time voltage. If yes, turn off the input power supply to stop charging and enter the low-power mode; if not, continue to charge the backup battery until the real-time voltage is greater than the charging threshold;

[0010] Charging interface: When it is detected that the charging interface is connected to the vehicle, start the input power supply, charge the vehicle through the charger power module, and at the same time replenish the backup battery.

[0011] Preferably, the charger main control module is respectively communicatively and / or electrically connected to the sound detection module, the infrared camera module, the driving mechanism, the charger power module, the LED lighting, and the input power supply; the sound detection module is communicatively and / or electrically connected to the backup battery; the charger power module is respectively communicatively and / or electrically connected to the input power supply, the backup battery, and the charging interface; the backup battery is electrically connected to the LED lighting.

[0012] Preferably, judging whether to generate an activation signal according to the real-time information includes:

[0013] Retrieve the real-time information. When the real-time information contains external sound, generate a lighting activation signal; otherwise, detect the battery voltage of the backup battery;

[0014] When the backup battery voltage is less than the set voltage threshold, generate a charging activation signal; otherwise, continuously detect the real-time information.

[0015] It should be noted that the charger main control module only starts to work when it receives the activation signal. When the charger main control module does not receive the activation signal, other modules are in the low-power mode, and only the sound detection module is in the working state.

[0016] The present invention analyzes and judges the acquired real-time information. When an external sound is detected or the backup battery has insufficient power, an activation signal is generated, enabling other modules to switch from the low-power mode to the working mode, which is beneficial for promptly handling the occurring situations.

[0017] Preferably, determining whether illumination is required based on the real-time image includes:

[0018] Retrieve the real-time image, and determine whether a person or a vehicle is recognized in the real-time image. If so, it is determined that illumination is required, and the LED lighting lamp is activated; if not, illumination is not required, and the low-power mode is entered; when the LED lighting lamp is activated, continuously detect the real-time image.

[0019] The present invention analyzes the real-time image. When a person or a vehicle can be recognized in the real-time image, the LED lighting lamp is activated; otherwise, the low-power mode is entered. It is possible to activate the LED lighting lamp only when a person or a vehicle is recognized, which is beneficial for avoiding energy consumption waste caused by the lighting lamp being always on.

[0020] Preferably, the charger main control module controls the driving mechanism to control the LED lighting lamp for follow-up lighting; the backup battery provides electrical energy for the LED lighting lamp; the charger main control module controls the switch and brightness of the LED lighting lamp.

[0021] Preferably, continuously detecting the real-time image includes:

[0022] Continuously acquire the real-time image. When a person or a vehicle is not recognized in the real-time image, turn off the LED lighting lamp and enter the low-power mode; otherwise, continue lighting until a person or a vehicle is not recognized.

[0023] The present invention continuously detects the real-time image. When a person or a vehicle is not recognized, turn off the LED lighting lamp, which can turn off the LED lighting lamp in the first time and enter the low-power mode after turning off the LED lighting lamp, being beneficial for avoiding waste of electrical energy caused by the LED lighting lamp being constantly on.

[0024] Preferably, determining whether the backup battery is fully charged according to the real-time voltage includes:

[0025] Retrieve the real-time voltage, and determine whether the real-time voltage is greater than the set charging threshold; if so, it is determined that the backup battery is fully charged; if not, it is determined that the backup battery is not fully charged.

[0026] It should be noted that the set charging threshold is determined according to the type of the backup battery. Different types of backup batteries have different battery voltages, so the set charging thresholds are also different.

[0027] The present invention detects the real-time voltage of the backup battery. After the backup battery is fully charged, the charging stops and the device enters the low-power mode. It can switch the working mode, which is beneficial to saving energy consumption and reducing energy waste.

[0028] Preferably, the main control module of the charger controls the voltage, current, and power of the charger power module through CAN communication to achieve the charging function of the backup battery; the input power supply provides electrical energy for the charger power module.

[0029] Preferably, the replenishment of the backup battery includes:

[0030] Obtain the charging voltage and the real-time voltage of the backup battery. When the charging voltage is greater than the real-time voltage of the backup battery, the charging current flows from the input power supply into the backup battery to replenish the backup battery;

[0031] When the real-time voltage of the backup battery is consistent with the charging voltage, the charging current cannot flow from the input power supply into the backup battery, and the replenishment of the backup battery stops.

[0032] It should be noted that the charger power module provides an input power supply, which is connected to the backup battery and can replenish the backup battery under working conditions.

[0033] While the present invention charges the vehicle, it replenishes the backup battery, which can avoid charging the backup battery only when the power of the backup battery is lower than the voltage threshold, which is beneficial to ensuring that the backup battery has sufficient power and avoiding abnormal situations caused by too low power of the backup battery.

[0034] The second aspect of the present invention provides a DC charging method for lighting function, including:

[0035] Step 1: Obtain real-time information through a sensor. When the real-time information contains external sounds, a lighting activation signal is generated; when the voltage of the backup battery in the real-time information is less than the set voltage threshold, a charging activation signal is generated;

[0036] Step 2: Based on the lighting activation signal, start the infrared camera module. Collect real-time images through the infrared camera module. When a person or vehicle is recognized in the real-time image, control the LED lighting to turn on; otherwise, enter the low-power mode and wait for the activation signal;

[0037] Step 3: Activate the input power supply based on the charging activation signal. Charge the backup battery through the charger power module, and detect the real-time voltage of the backup battery in real time. When the real-time voltage is greater than the set charging voltage, turn off the input power supply to stop charging and enter the low-power mode; otherwise, continue to charge the backup battery until the real-time voltage is greater than the charging threshold;

[0038] Step 4: When it is detected that the charging interface is connected to the vehicle, start the input power supply, and charge the vehicle through the charger power module; obtain the charging voltage and the real-time voltage of the backup battery, and charge the backup battery according to the charging voltage and the real-time voltage.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0040] 1. The present invention collects real-time information through sensors, and judges whether to generate an activation signal according to the real-time information. When the real-time information contains external sounds or the voltage of the backup battery is less than the voltage threshold, an activation signal is generated, which can enable other modules to switch from the low-power mode to the working mode, facilitating timely handling of emerging situations; the infrared camera module is started based on the lighting activation signal, and real-time images are collected through the infrared camera module. When a person or vehicle is recognized in the real-time images, the LED lighting is controlled to turn on; otherwise, it enters the low-power mode, and the LED lighting can be started only when a person or vehicle is recognized, which helps to avoid waste of energy consumption caused by the continuous on of the lighting; when a person or vehicle is not recognized in the real-time images, the LED lighting is turned off and it enters the low-power mode; otherwise, continuous lighting is carried out until a person or vehicle is not recognized; the LED lighting can be turned off in the first time and enter the low-power mode after turning off the LED lighting, which helps to avoid waste of electric energy caused by the constant on of the LED lighting.

[0041] 2. The present invention activates the input power supply based on the charging activation signal, charges the backup battery through the charger power module, and real-time detects the real-time voltage of the backup battery; when the real-time voltage is greater than the set charging threshold, the input power supply is turned off to stop charging, and it enters the low-power mode; otherwise, continuous charging of the backup battery is carried out until the real-time voltage is greater than the set charging threshold; it can switch the working mode, which helps to save energy consumption and reduce waste of energy; when it is detected that the charging interface is connected to the vehicle, the input power supply is started, and the vehicle is charged through the charger power module; the charging voltage and the real-time voltage of the backup battery are obtained, and the backup battery is charged and supplemented according to the charging voltage and the real-time voltage, which can avoid charging the backup battery only when the power of the backup battery is lower than the voltage threshold, facilitating ensuring sufficient power of the backup battery and avoiding abnormal situations caused by too low power of the backup battery. Description of the Drawings

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0043] Figure 1 It is a schematic diagram of the overall framework of the system of the present invention;

[0044] Figure 2 It is a schematic diagram of the overall process steps of the system of the present invention;

[0045] Figure 3 It is a schematic diagram of the specific illumination steps of the system of the present invention;

[0046] Figure 4 It is a schematic diagram of the specific steps for charging the backup battery of the system of the present invention;

[0047] Figure 5 It is a schematic diagram of the specific steps of the method of the present invention. Specific embodiments

[0048] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] Please refer to Figure 1 - Figure 2 , an embodiment of the first aspect of the present invention provides a DC charging system with a lighting function, including: a charger main control module, a charger power module, a sound detection module, an infrared camera module, a driving mechanism, an input power supply, a charger interface, a backup battery, and an LED lighting lamp;

[0050] The charger main control module is respectively communicatively and / or electrically connected to the sound detection module, the infrared camera module, the driving mechanism, the charger power module, the LED lighting lamp, and the input power supply; the sound detection module is communicatively and / or electrically connected to the backup battery; the charger power module is respectively communicatively and / or electrically connected to the input power supply, the backup battery, and the charging interface; the backup battery is electrically connected to the LED lighting lamp;

[0051] The sound detection module: collects real-time information through the connected sensor, and judges whether to generate an activation signal according to the real-time information. If so, it generates an activation signal; if not, it continuously detects the real-time information; among them, the real-time information includes external sound and the voltage of the backup battery; the activation signal includes a lighting activation signal and a charging activation signal;

[0052] The charger main control module: starts the infrared camera module based on the lighting activation signal, collects real-time images through the infrared camera module, and judges whether lighting is required according to the real-time images. If so, it controls the LED lighting lamp to turn on; if not, it enters the low-power mode and waits for the activation signal; and,

[0053] Activate the input power supply based on the charging activation signal, charge the backup battery through the charger power module, detect the real-time voltage of the backup battery in real time, and determine whether the backup battery is fully charged according to the real-time voltage. If so, turn off the input power supply to stop charging and enter the low-power mode; if not, continue to charge the backup battery until the real-time voltage is greater than the charging threshold;

[0054] Charging interface: When it is detected that the charging interface is connected to the vehicle, start the input power supply, charge the vehicle through the charger power module, and at the same time replenish the backup battery.

[0055] Please refer to Figure 3 , collect real-time information through sensors. When the real-time information contains external sounds, generate a lighting activation signal; start the infrared camera module based on the lighting activation signal, and collect real-time images through the infrared camera module; determine whether a person or vehicle is recognized in the real-time image. If so, control the LED lighting to turn on; if not, enter the low-power mode and wait for the activation signal; continuously obtain real-time images. When no person or vehicle is recognized in the real-time image, turn off the LED lighting and enter the low-power mode; otherwise, continue lighting until no person or vehicle is recognized.

[0056] It should be noted that the real-time images collected by the infrared camera module are the real-time images of the lighting area, where the lighting area is delimited according to the structure and experience of the underground garage.

[0057] It is worth noting that the charger main control module controls the drive mechanism to control the rotation of the LED lighting, so that the LED lighting can follow the lighting. And the charger main control module can directly control the switch and brightness of the LED lighting, and can adjust the brightness of the LED lighting according to different situations, saving resources to the greatest extent.

[0058] For example: Suppose real-time information A and B are collected at two different times. Both real-time information A and real-time information B contain external sounds. Start the infrared camera module, collect real-time images at the two times, and obtain the following two sets of data:

[0059] The first set of data: A vehicle is recognized in real-time image 1 entering the lighting area, then turn on the LED lighting and make the LED lighting follow the vehicle for lighting. When no vehicle can be recognized in the real-time image of the lighting area, turn off the LED lighting and enter the low-power mode;

[0060] The second set of data: No person or vehicle is recognized in real-time image 2 entering the lighting area, then enter the low-power mode and continue to detect external sounds.

[0061] Please refer to Figure 4, obtain the backup battery voltage through a sensor. When the backup battery voltage is less than the set voltage threshold, a charging activation signal is generated; otherwise, continuously detect the backup battery voltage; activate the input power supply based on the charging activation signal, charge the backup battery through the charger power module, and detect the real-time voltage of the backup battery in real time; determine whether the real-time voltage is greater than the set charging threshold. If so, turn off the input power supply to stop charging and enter the low-power mode; if not, continuously charge the backup battery until the real-time voltage is greater than the charging threshold; when it is detected that the charging interface is connected to the vehicle, start the input power supply, charge the vehicle through the charger power module, and simultaneously obtain the charging voltage and the real-time voltage of the backup battery. When the charging voltage is greater than the real-time voltage of the backup battery, the charging current flows from the input power supply into the backup battery to replenish the backup battery; when the real-time voltage of the backup battery is consistent with the charging voltage, the charging current cannot flow from the input power supply into the backup battery, and the replenishment of the backup battery is stopped.

[0062] For example: Suppose the backup battery voltages at two moments are collected, and the following two sets of data are obtained:

[0063] The first set of data: The backup battery voltage is less than the set voltage threshold, so a charging activation signal is generated. Based on the charging activation signal, the input power supply is activated, and the backup battery is charged through the charger power module. The real-time voltage of the backup battery is detected in real time; after half an hour of charging, it is detected that the real-time voltage is greater than the set charging voltage, so the input power supply is turned off to stop charging and enter the low-power mode;

[0064] The second set of data: The backup battery voltage is greater than the set voltage threshold, so the backup battery voltage is continuously detected;

[0065] At two moments, it is detected that the charging interface is connected to the vehicle. The real-time voltage of the backup battery and the charging voltage are detected, and the following two sets of data are obtained:

[0066] The first set of data: The real-time voltage of the backup battery is less than the charging voltage, so the charging current flows from the input power supply into the backup battery to replenish the backup battery. After one hour of replenishment, the real-time voltage of the backup battery is equal to the charging voltage, so the charging current cannot flow from the input power supply into the backup battery to replenish the backup battery, and the replenishment of the backup battery is stopped;

[0067] The second set of data: The real-time voltage of the backup battery is greater than the charging voltage, so there is no need to replenish the backup battery.

[0068] An embodiment of the second aspect of the present invention provides a DC charging method for lighting function, including:

[0069] Step 1: Obtain real-time information through sensors. When the real-time information contains external sounds, generate an illumination activation signal; when the voltage of the backup battery in the real-time information is less than the set voltage threshold, generate a charging activation signal;

[0070] Step 2: Based on the illumination activation signal, start the infrared camera module, collect real-time images through the infrared camera module. When a person or vehicle is recognized in the real-time image, control the LED lighting to turn on; otherwise, enter the low-power mode and wait for the activation signal;

[0071] Step 3: Activate the input power supply based on the charging activation signal, charge the backup battery through the charger power module, and continuously detect the real-time voltage of the backup battery. When the real-time voltage is greater than the set charging voltage, turn off the input power supply to stop charging and enter the low-power mode; otherwise, continue to charge the backup battery until the real-time voltage is greater than the charging threshold;

[0072] Step 4: When it is detected that the charging interface is connected to the vehicle, start the input power supply and charge the vehicle through the charger power module; obtain the charging voltage and the real-time voltage of the backup battery, and supplement the backup battery according to the charging voltage and the real-time voltage.

[0073] The working principle of the present invention: The present invention collects real-time information through sensors. When the real-time information contains external sounds, generate an illumination activation signal; based on the illumination activation signal, start the infrared camera module and collect real-time images through the infrared camera module; determine whether a person or vehicle is recognized in the real-time image. If so, control the LED lighting to turn on; if not, enter the low-power mode and wait for the activation signal; continuously obtain real-time images. When a person or vehicle is not recognized in the real-time image, turn off the LED lighting and enter the low-power mode; otherwise, continue the illumination until a person or vehicle is not recognized;

[0074] The present invention obtains the voltage of the backup battery through a sensor. When the voltage of the backup battery is less than the set voltage threshold, a charging activation signal is generated; otherwise, the voltage of the backup battery is continuously detected. Based on the charging activation signal, the input power supply is activated, and the backup battery is charged through the charger power module, and the real-time voltage of the backup battery is detected in real time. It is judged whether the real-time voltage is greater than the set charging threshold. If so, the input power supply is turned off to stop charging, and the low-power mode is entered; otherwise, the backup battery is continuously charged until the real-time voltage is greater than the charging threshold. When it is detected that the charging interface is connected to the vehicle, the input power supply is started, and the vehicle is charged through the charger power module. At the same time, the charging voltage and the real-time voltage of the backup battery are obtained. When the charging voltage is greater than the real-time voltage of the backup battery, the charging current flows from the input power supply into the backup battery to replenish the backup battery. When the real-time voltage of the backup battery is consistent with the charging voltage, the charging current cannot flow from the input power supply into the backup battery, and the replenishment of the backup battery is stopped.

[0075] The above embodiments are only used to illustrate the technical method of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A DC charging system with lighting function, comprising: The main control module of the charger, the power module of the charger, the sound detection module, the infrared camera module, the driving mechanism, the input power supply, the charger interface, the backup battery, and the LED lighting lamp; characterized in that, The sound detection module: Collects real-time information through the connected sensor, and judges whether to generate an activation signal according to the real-time information. If so, generates an activation signal; if not, continuously detects the real-time information; wherein, the real-time information includes external sound and the voltage of the backup battery; the activation signal includes the lighting activation signal and the charging activation signal; The main control module of the charger: Starts the infrared camera module based on the lighting activation signal, collects real-time images through the infrared camera module, and judges whether lighting is required according to the real-time images. If so, controls the LED lighting lamp to turn on; if not, enters the low-power mode and waits for the activation signal; and, Activates the input power supply based on the charging activation signal, charges the backup battery through the power module of the charger, and continuously detects the real-time voltage of the backup battery. Judges whether the backup battery is fully charged according to the real-time voltage. If so, turns off the input power supply to stop charging and enters the low-power mode; if not, continuously charges the backup battery until the real-time voltage is greater than the charging threshold; The charging interface: When it is detected that the charging interface is connected to the vehicle, starts the input power supply, charges the vehicle through the power module of the charger, and simultaneously replenishes the backup battery.

2. The DC charging system with lighting function according to claim 1, characterized in that, The main control module of the charger is respectively communicatively and / or electrically connected to the sound detection module, the infrared camera module, the driving mechanism, the power module of the charger, the LED lighting lamp, and the input power supply; the sound detection module is communicatively and / or electrically connected to the backup battery; the power module of the charger is respectively communicatively and / or electrically connected to the input power supply, the backup battery, and the charging interface; the backup battery is electrically connected to the LED lighting lamp.

3. The DC charging system with lighting function according to claim 1, wherein The judging whether to generate an activation signal according to the real-time information includes: Retrieving the real-time information. When the real-time information contains external sound, generates the lighting activation signal; otherwise, detects the battery voltage of the backup battery; When the voltage of the backup battery is less than the set voltage threshold, generates the charging activation signal; otherwise, continuously detects the real-time information.

4. The DC charging system with lighting function according to claim 1, characterized in that, The judging whether lighting is required according to the real-time images includes: Retrieving the real-time images, judging whether a person or a vehicle is recognized in the real-time images. If so, determines that lighting is required and starts the LED lighting lamp; if not, lighting is not required and enters the low-power mode; when the LED lighting lamp is started, continuously detects the real-time images.

5. The DC charging system with lighting function according to claim 4, characterized in that, The main control module of the charger controls the driving mechanism to control the LED lighting lamp for follow-up lighting; the backup battery provides electrical energy for the LED lighting lamp; the main control module of the charger controls the switch and brightness of the LED lighting lamp.

6. The DC charging system with lighting function according to claim 5, characterized in that, The continuously detecting the real-time images includes: Continuously obtaining the real-time images. When no person or vehicle is recognized in the real-time images, turns off the LED lighting lamp and enters the low-power mode; otherwise, continuously conducts lighting until no person or vehicle is recognized.

7. The DC charging system with lighting function according to claim 1, characterized in that, The judging whether the backup battery is fully charged according to the real-time voltage includes: Retrieve the real-time voltage and determine whether the real-time voltage is greater than the set charging threshold; if so, it is determined that the backup battery has been fully charged; if not, it is determined that the backup battery has not been fully charged.

8. A DC charging system with lighting function according to claim 7, characterized in that, The main control module of the charger controls the voltage, current, and power of the charger power module through CAN communication to achieve the charging function for the backup battery; the input power supply provides electrical energy for the charger power module.

9. The DC charging system with lighting function according to claim 1, characterized in that, The replenishment of the backup battery includes: Obtain the charging voltage and the real-time voltage of the backup battery. When the charging voltage is greater than the real-time voltage of the backup battery, the charging current flows from the input power supply into the backup battery to replenish the backup battery. When the real-time voltage of the backup battery is consistent with the charging voltage, the charging current cannot flow from the input power supply into the backup battery, and the replenishment of the backup battery stops.

10. A DC charging method with lighting function, applied to a DC charging system with lighting function according to any one of claims 1-9, characterized in that, It includes: Step 1: Obtain real-time information through a sensor. When the real-time information contains external sounds, a lighting activation signal is generated. When the voltage of the backup battery in the real-time information is less than the set voltage threshold, a charging activation signal is generated. Step 2: Based on the lighting activation signal, start the infrared camera module. Collect real-time images through the infrared camera module. When a person or vehicle is recognized in the real-time image, control the LED lighting to turn on; otherwise, enter the low-power mode and wait for the activation signal. Step 3: Activate the input power supply based on the charging activation signal. Charge the backup battery through the charger power module. Real-time detect the real-time voltage of the backup battery. When the real-time voltage is greater than the set charging voltage, turn off the input power supply to stop charging and enter the low-power mode; otherwise, continue to charge the backup battery until the real-time voltage is greater than the charging threshold. Step 4: When it is detected that the charging interface is connected to the vehicle, start the input power supply and charge the vehicle through the charger power module; obtain the charging voltage and the real-time voltage of the backup battery, and replenish the backup battery according to the charging voltage and the real-time voltage.

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