Management and control method of Internet of Things charging equipment and charger

Abstract

The invention relates to the technical field of electric vehicle charging, in particular to a management and control method of Internet of Things charging equipment, a charger and a storage medium. The management and control method is applied to a charger with an Internet of Things function, the charger is in communication interaction with cloud equipment through the Internet of Things, the charger is used for charging an electric vehicle, and the management and control method for the Internet of Things charging equipment comprises the steps that the environment temperature of the charger during charging and / or equipment state information of the charger are / is acquired, and the current position is acquired through a built-in positioning assembly; sharing the environment temperature and / or the equipment state information and the current position to cloud equipment; judging whether the charger is in an abnormal state based on the environment temperature and / or the equipment state information; if yes, the charger is driven to give an abnormal alarm, alarm information is output to the cloud equipment, and the alarm information comprises the current position; therefore, the mobile device bound with the charger can obtain the alarm information and remotely control the charger through the cloud device. According to the invention, the charging safety can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging, and in particular to a management and control method for Internet of Things charging equipment, a charger, and a storage medium. Background Art

[0002] As people's living standards improve, electric vehicles have become the preferred mode of transportation for many due to their convenience. However, electric vehicle safety issues are a growing concern. During charging, environmental issues (such as direct sunlight in the summer) or internal component failures (such as short circuits or open circuits) can cause the charger to overheat, potentially leading to fires and significant damage to people and property. Summary of the Invention

[0003] The embodiments of the present invention provide a method for controlling an Internet of Things charging device and a charger to solve the problem that the charger is prone to fire and has low charging safety.

[0004] The present invention discloses a method for controlling an Internet of Things charging device, which is applied to a charger with an Internet of Things function, wherein the charger communicates and interacts with a cloud device via the Internet of Things, and the charger is used to charge an electric vehicle; The method for controlling the Internet of Things charging equipment includes: Obtaining the ambient temperature of the charger during charging and / or device status information of the charger, and obtaining the current location through a built-in positioning component; Sharing the ambient temperature and / or the device status information, and the current location to the cloud device; determining whether the charger is in an abnormal state based on the ambient temperature and / or the device status information; If so, the charger is driven to issue an abnormal alarm and output the alarm information to the cloud device, the alarm information including the current location; so that the mobile device bound to the charger can obtain the alarm information and remotely control the charger through the cloud device.

[0005] Optionally, after the step of obtaining the ambient temperature of the charger during charging and / or the device status information of the charger, the following steps are included: Acquire a preset temperature threshold based on the ambient temperature and / or the device status information; The step of determining whether the charger is in an abnormal state based on the ambient temperature and / or the device status information includes: Determining whether the current temperature exceeds the preset temperature threshold; If so, reducing the current charging power of the charger or cutting off the power supply path of the charger; If not, adjusting the charging parameters of the charger according to the current temperature; The step of driving the charger to issue an abnormality alarm includes: Collect current information to generate an alarm log, and issue a first alarm prompt to the user and / or a second alarm prompt to the target contact, wherein the current information includes at least one of the current time, the current location, the current temperature, and the working status of the charger.

[0006] Optionally, the step of obtaining a preset temperature threshold based on the ambient temperature and / or the device status information includes: Get the basic temperature threshold; Acquiring a degree of device aging according to the device status information, lowering the basic temperature threshold based on the degree of device aging to obtain the preset temperature threshold, wherein the higher the degree of device aging, the greater the reduction in the basic temperature threshold; and / or If the ambient temperature is higher than the first ambient threshold, increasing the basic temperature threshold to obtain the preset temperature threshold; If the ambient temperature is lower than the second ambient threshold, the basic temperature threshold is lowered to obtain the preset temperature threshold.

[0007] Optionally, the preset temperature threshold comprises a first target threshold, a second target threshold, a third target threshold and a fourth target threshold which increase in sequence; When the current temperature exceeds the first target threshold, reducing the current charging power of the charger; When the current temperature exceeds the second target threshold, issuing the first alarm prompt to the user and providing the user with an option to stop charging; When the current temperature exceeds the third target threshold, cutting off the power supply path of the charger and issuing a second alarm prompt to the target contact; When the current temperature exceeds the fourth target threshold, cutting off the power supply path of the charger and sending a third alarm prompt to the fire department; The charger uses a pulse level to charge; the temperature-based charging control method and the management and control method of the Internet of Things charging device also include: When the remaining power of the target battery being charged does not reach a first threshold, driving the charger to output a pulse level with a first duty cycle; When the remaining power of the target battery exceeds the first threshold but does not reach a second threshold, driving the charger to output a pulse level with a second duty cycle, where the second duty cycle is lower than the first duty cycle; The step of adjusting the charging parameters of the charger according to the current temperature includes: When the remaining power does not reach the second threshold, determining whether the current temperature exceeds a preset pause threshold; If so, the charger is driven to pause charging for a preset time period, and battery information of the target battery is obtained, where the battery information includes at least one of the charging voltage, the charging current, the battery temperature, and the battery power.

[0008] Optionally, the charger uses a pulse level for charging; the temperature-based charging control method and the method for managing and controlling an IoT charging device further include: When the remaining power of the target battery being charged does not reach a first threshold, driving the charger to output a pulse level with a first duty cycle; When the remaining power of the target battery exceeds the first threshold but does not reach a second threshold, driving the charger to output a pulse level with a second duty cycle, where the second duty cycle is lower than the first duty cycle; The step of adjusting the charging parameters of the charger according to the current temperature includes: When the remaining power does not reach the second threshold, determining whether the current temperature exceeds a preset pause threshold; If so, the charger is driven to pause charging for a preset time period, and battery information of the target battery is obtained, where the battery information includes at least one of the charging voltage, the charging current, the battery temperature, and the battery power.

[0009] Optionally, after the step of driving the charger to pause charging for a preset time period, the method further includes: The charging voltage and / or the charging current are reduced, and charging is performed using the reduced charging voltage and / or the reduced charging current.

[0010] Optionally, the method for managing and controlling an IoT charging device further includes: When the remaining power exceeds the second threshold, the charging voltage and / or the charging current are increased stepwise, and the battery is charged for a preset time period using the increased charging voltage and / or charging current; The pulse level is output according to a preset frequency and a preset duty cycle, and the pulse level is reduced in a step-by-step manner.

[0011] Optionally, the step of adjusting the charging parameters of the charger according to the current temperature includes: The adjusted charging voltage is obtained according to the following formula:

[0012] in, is the adjusted charging voltage, is the current temperature, is the preset reference temperature, It is a negative number and is negatively correlated with the ambient temperature.

[0013] Optionally, the charger displays device status information through a built-in human-computer interaction component, wherein the device status information includes at least one of charging voltage, current, time, power, pulse dynamics, and fan status; The method for controlling the Internet of Things charging device further includes: The adjustment instruction input by the user is received through the human-computer interaction component, and the charging parameter is modified according to the adjustment instruction.

[0014] The present invention also discloses a charger to implement the above-mentioned method for controlling IoT charging devices, characterized in that the charger includes a power supply mainboard, a communication mainboard, and a display screen. External electric energy is input and processed by the input end of the power supply mainboard and then output to the outside through the output end of the power supply mainboard. The communication mainboard is connected to the power supply mainboard and the display screen respectively, and the communication mainboard includes: Main control chip; The communication module is connected to the main control chip to remotely connect and communicate with the cloud server; a display interface, connected to the main control chip and the display screen, respectively, wherein the main control chip displays device status information through the display screen, wherein the device status information includes at least one of charging voltage information, current information, time information, power information, pulse dynamic information, and fan status information; The current acquisition module is connected to the main control chip to obtain the current information of the power supply motherboard; Relays are connected to the input terminals of the main control chip and the power supply motherboard respectively; The MOS tube power output module is connected to the output terminals of the main control chip and the power supply motherboard respectively to control the DC voltage output; The AD-DC power supply module is connected to the relay, converts the input power into DC and supplies power to the 4G communication motherboard; The voltage acquisition module is connected to the main control chip to obtain the charging voltage information of the power supply motherboard; The temperature sensor is connected to the main control chip to obtain the temperature information of the power supply motherboard.

[0015] The beneficial effects of the method for controlling an IoT charging device and the charger provided by the embodiments of the present invention are: Continuously monitor the ambient temperature and / or device status information of the charger, upload the ambient temperature and / or device status information, and the corresponding current location, to the cloud device, and determine whether the charger is in an abnormal state based on the ambient temperature and / or device status information. If so, immediately drive the charger's local alarm (such as sound and light prompts) to alert on-site personnel to the danger and take action. At the same time, push the alarm information containing the precise location to the user's bound mobile device. The user can not only immediately know the dangerous situation and its location, but also remotely control the charger through the cloud (such as immediately cutting off the power). When the user cannot be present at the scene, the risk source can be quickly cut off to prevent the accident from worsening, thereby achieving rapid early warning and disposal, and maximizing the protection of personal and property safety during the charging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which: Figure 1 This is a flow chart of an embodiment of the method for controlling an IoT charging device provided by the present invention; Figure 2 This is a schematic diagram of an application scenario of the Internet of Things charging device provided by the present invention; Figure 3 This is a flow chart of another embodiment of the method for controlling an IoT charging device provided by the present invention; Figure 4 This is a flow chart of another embodiment of the method for controlling an IoT charging device provided by the present invention; Figure 5 It is a structural schematic diagram of an embodiment of the charger provided by the present invention.

[0017] The reference numerals in the figures are: 1. Charger; 11. Power supply motherboard; 12. Communication motherboard; 121. Main control chip; 122. Communication module; 123. Display interface; 124. Current acquisition module; 125. Relay; 126. MOS tube power output module; 127. AD-DC power supply module; 128. Voltage acquisition module; 129. Temperature sensor; 13. Display screen; 2. Cloud devices; 3. Mobile devices. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, the preferred embodiments of the present invention will be described in detail.

[0019] Please refer to Figure 1 and Figure 2 , Figure 1 It is a flow chart of an embodiment of the method for controlling an IoT charging device provided by the present invention. Figure 2 This is a schematic diagram of an application scenario for the IoT charging device provided by the present invention. A charger 1 and a cloud device 2 communicate and interact via a wireless network. A mobile device 3 also communicates with the cloud device 2 via a wireless network. The charger 1 and mobile device 3 are pre-bound. One charger 1 can be bound to multiple mobile devices 3, and one mobile device 3 can also be bound to multiple chargers 1. The binding relationships are pre-stored in the cloud device 2. This allows the cloud device 2 to promptly send information about the charger 1 to the bound mobile devices 3. Control commands from the mobile devices 3 can also be sent to the charger 1 via the cloud device 2.

[0020] The method for controlling an IoT charging device provided by the present invention comprises the following steps: S101: Obtain the ambient temperature of the charger during charging and / or the device status information of the charger, and obtain the current location through the built-in positioning component.

[0021] In a specific implementation scenario, a charger is used to charge an electric vehicle. One end of the charger is connected to the vehicle's battery (including lithium batteries and lead-acid batteries) and the other end is connected to a power source. The charger is equipped with at least one temperature sensor to monitor the real-time temperature inside the charger and the ambient temperature outside the charger. Ambient temperature directly affects the heat dissipation efficiency of the charger. High temperatures (such as in summer or in confined spaces) can reduce the charger's heat dissipation capabilities.

[0022] The charger is internally provided with a positioning component, such as a GPS component or a Beidou positioning component, based on which the current location of the charger can be obtained.

[0023] The charger is equipped with an internal information sampling component that can obtain real-time device status information. This information includes at least one of the following: charging power, charging voltage, and charging current. This device status information and the ambient temperature can indicate whether the current charging status is abnormal. For example, high ambient temperature and high charging power are more likely to cause a fault.

[0024] The device status information also includes the charger's own temperature. If the ambient temperature is high and the charger's own temperature is also high when working, it is more likely to malfunction.

[0025] Furthermore, an electronic fence is provided, which is formed by GPS positioning and can be tracked in case of failure or loss.

[0026] Equipment status information also includes the aging of the equipment. The heat dissipation performance of old equipment has declined. When the ambient temperature is high, the probability of failure of old equipment is higher when working at high temperature.

[0027] S102: Share the ambient temperature and / or device status information, and the current location to a cloud device.

[0028] In a specific implementation scenario, the ambient temperature and / or device status information, as well as the current location, are shared with a cloud device so that the cloud device can store this information. When a mobile terminal bound to the charger applies for access to this information, the cloud device can grant access rights to the mobile terminal based on the binding information, and the cloud device can access this information in real time.

[0029] Furthermore, the cloud device can store information within a period (such as a week, the past three days, or the past 24 hours) and organize this information into charts. Mobile devices can access the charts corresponding to their bound chargers.

[0030] S103: Determine whether the charger is in an abnormal state based on the ambient temperature and / or device status information; if so, execute step S104.

[0031] In a specific implementation scenario, whether the charger is in an abnormal state is determined based on the acquired ambient temperature and / or device status information. For example, a temperature threshold may be preset, and when the ambient temperature exceeds the temperature threshold, the charger is considered to be in an abnormal state. Alternatively, the charger is considered to be in an abnormal state only when the charger's own temperature exceeds the threshold. This determination can be made by the charger itself or by a cloud device.

[0032] In other implementation scenarios, at least one of a power threshold, a voltage threshold, and a current threshold may be set, and the temperature threshold may be combined with these thresholds to determine the working state of the charger and detect whether it is in an abnormal state.

[0033] S104: driving the charger to issue an abnormal alarm and outputting the alarm information to a cloud device; so that a mobile device bound to the charger can obtain the alarm information and remotely control the charger through the cloud device.

[0034] In a specific implementation scenario, if the charger is determined to be in an abnormal state, the charger is activated to issue an abnormality alarm. The abnormality alarm can be at least one of acoustic, optical, and light. When a user of the charger is nearby, the abnormality alarm can be promptly received and the charger can be handled accordingly. For example, the charging power of the charger can be reduced or the charging plug of the charger can be unplugged.

[0035] The charger sends an alarm message to the cloud device. The alarm message includes the current location and may also include the ambient temperature or device status information. The cloud device can forward the alarm message to the mobile device bound to the charger, so that the user can remotely obtain the charger's alarm information through the mobile device. Furthermore, the user can issue control instructions through the mobile device, such as controlling the charger to disconnect the power supply or reduce the charging power. After receiving the control instruction, the cloud device forwards the control instruction to the corresponding charger, and the charger will perform the corresponding operation according to the control instruction, or the cloud device can directly control the charger to perform the corresponding operation according to the control instruction. In this way, remote control of the charger by the mobile device is realized, which effectively ensures that the user can perform safe operations on the charger in a timely manner even if he is far away from the charger, thereby ensuring charging safety.

[0036] As can be seen from the above description, in this embodiment, the ambient temperature and / or device status information of the charger is continuously monitored, and the ambient temperature and / or device status information, as well as the corresponding current location, are uploaded to the cloud device. Based on the ambient temperature and / or device status information, it is determined whether the charger is in an abnormal state. If so, the charger's local alarm (such as sound and light prompts) is immediately driven to alert on-site personnel to the danger and take action. At the same time, the alarm information containing the precise location is pushed to the user's bound mobile device. The user can not only immediately know the dangerous situation and its location, but also remotely control the charger through the cloud (such as immediately cutting off the power). When the user cannot be present at the scene, the risk source can be quickly cut off to prevent the accident from worsening, thereby achieving rapid early warning and disposal, and maximizing the personal and property safety of the charging process.

[0037] Please refer to Figure 3 , Figure 3 1 is a flow chart of another embodiment of the method for controlling an IoT charging device provided by the present invention. The method for controlling an IoT charging device provided by the present invention comprises the following steps: S201: Acquire the ambient temperature of the charger during charging and / or device status information of the charger, and acquire a preset temperature threshold based on the ambient temperature and / or the device status information.

[0038] In a specific implementation scenario, a charger is used to charge an electric vehicle. One end of the charger is connected to the vehicle's battery (including lithium batteries and lead-acid batteries) and the other end is connected to a power source. At least one temperature sensor is installed on the charger to monitor the real-time temperature inside the charger and the ambient temperature outside the charger. Ambient temperature directly affects the charger's heat dissipation efficiency. High temperatures (such as in summer or in confined spaces) can reduce the charger's heat dissipation capacity. Therefore, the preset temperature threshold needs to be adjusted according to the ambient temperature to reduce risks.

[0039] Device status information includes at least one of the charger's rated power, rated voltage, or rated current. A higher rated power, rated voltage, or rated current will result in higher heat generation during charging, necessitating adjustments to the preset temperature threshold. Device status information also includes device aging. As older devices experience reduced heat dissipation, the preset temperature threshold may need to be lowered to ensure safety (e.g., a 50°C threshold for new devices and a 45°C threshold for older devices). Device aging can be determined based on the device's usage history (e.g., duration and number of uses) and health status (e.g., charging efficiency and component performance).

[0040] Dynamically adjusting the preset temperature threshold according to the ambient temperature and device status information can improve the flexibility and adaptability of the monitoring effect, and also ensure the safety of use and the accuracy of the alarm.

[0041] A basic threshold can be preset, and the basic temperature threshold can be adjusted according to the ambient temperature and device status information to obtain the preset temperature threshold. For example, if the ambient temperature is higher than the first ambient threshold (for example, 35°C) and lasts for more than the preset time, it means that the charger is working in a high-temperature environment. Therefore, raising the basic temperature threshold can avoid frequent alarm triggering due to the high ambient temperature itself and reduce the false alarm rate. On the contrary, if the ambient temperature is lower than the second ambient threshold (for example, 0°C) and lasts for more than the preset time, it means that the charger is working in a low-temperature environment. The alarm threshold should be appropriately lowered to cope with abnormal conditions that may occur in low-temperature environments.

[0042] The aging of the device will affect its performance and stability. Therefore, the older the device, the greater the reduction in the basic temperature threshold, ensuring that any possible failure or abnormality of the charger is detected in time.

[0043] As can be seen from the above description, the charger's operating characteristics in different environments and states are fully considered, and the preset temperature thresholds are more targeted. By dynamically adjusting the preset temperature thresholds, the system can react more quickly to changes in the charger's status, promptly identifying potential problems and taking appropriate measures to avoid charger damage or production interruptions.

[0044] S202: Obtain the current temperature of the charger and determine whether the current temperature exceeds a preset temperature threshold; if so, execute step S203; if not, execute step S204.

[0045] In a specific implementation scenario, the current temperature inside the charger is obtained through a temperature sensor, and the current temperature is compared with the current preset temperature threshold. If the current temperature exceeds the preset temperature threshold, a corresponding strategy needs to be executed to prevent the temperature inside the charger from continuing to rise and ensure the safe use of the charger.

[0046] S203: Reduce the current charging power of the charger or cut off the power supply path of the charger, collect current information to generate an alarm log, and issue a first alarm prompt to the user and / or issue a second alarm prompt to the target contact.

[0047] In a specific implementation scenario, if the current temperature exceeds a preset temperature threshold, it indicates that the current charger is at risk and that the heat generated by the charger during operation needs to be controlled to prevent problems such as explosion and combustion. Heat can be reduced by reducing the current charging power of the charger. The current charging power can be reduced by a preset ratio, for example, by 70% of the current charging power as the new charging power. The charging current / charging voltage can also be gradually reduced to reduce heat while maintaining charging function. Alternatively, the charging circuit can be directly disconnected to cut off the source of heat generation and prevent fire or explosion accidents.

[0048] Therefore, through the above steps, automatic temperature control is achieved, automatically adjusting charging parameters according to temperature changes to avoid overheating risks. In addition, real-time alarms are implemented, and when the temperature is abnormal, an alarm message is sent to the user in a timely manner, improving safety.

[0049] Collect current information to generate an alarm log for post-analysis and troubleshooting. Current information includes at least one of the current time, current location, current temperature, and the charger's operating status. The current location can be obtained via GPS / Wi-Fi positioning (e.g., Zhongguancun, Haidian District, Beijing), facilitating recalls or on-site inspections. The current time is accurate to milliseconds (e.g., 2025-05-07 14:30:45.123) and is used to locate the time when the problem occurred. The current temperature is the real-time temperature value (e.g., 82.5°C) when the preset temperature threshold is exceeded. The operating status includes the charging mode (fast charge / slow charge), current / voltage values, device SN code, etc. The alarm log can be stored in the charger's built-in Flash or uploaded to the cloud for synchronization with the manufacturer's server and user app.

[0050] Based on the current temperature, a first alarm prompt is issued to the user and / or a second alarm prompt is issued to the target contact. For example, if the current temperature is high, only the first alarm prompt can be issued to the user, and an alarm can be popped up in the mobile app, while the charger LED light flashes red and / or a buzzer alarm sounds. If the current temperature is extremely high, a second alarm prompt can be sent to the target contact. The target contact can be a pre-bound property staff or a fire department, so that relevant personnel can be notified in time to take measures to prevent greater losses. Therefore, remote control and real-time monitoring can be achieved through mobile phones, improving the user experience.

[0051] In other implementation scenarios, a multi-level temperature monitoring and safety protection mechanism is adopted. By setting different temperature thresholds, different measures are gradually taken to ensure the safety of the charging process. This mechanism can effectively prevent damage or fire accidents caused by device overheating and protect the personal and property safety of users. Specifically, the preset temperature thresholds include a first target threshold, a second target threshold, a third target threshold, and a fourth target threshold (for example, 70°C, 80°C, 140°C, and 160°C), which increase in sequence. Each target threshold can be set based on the ambient temperature and device status information, and the interval between the target thresholds can be preset. Any target threshold is obtained based on the ambient temperature and device status information, and the other target thresholds are then obtained based on the interval.

[0052] When the current temperature exceeds the first target threshold, the charger's current charging power is automatically reduced to reduce heat generated during charging and prevent further temperature increases. If the current temperature of the charger continues to rise, exceeding the second target threshold, a first alarm will be issued to the user, reminding them that the device temperature is too high and may pose a safety risk. At the same time, the user is given the option to stop charging, allowing them to choose whether to continue charging, ensuring that they can take timely action to reduce risks.

[0053] When the charger's current temperature exceeds the third target threshold, the system automatically cuts off power to prevent damage or fire from overheating. A second alarm alert is sent to the designated contact (property personnel or fire department) to notify them of the abnormality and ensure they can take necessary action. When the current temperature exceeds the fourth target threshold, the system cuts off power to prevent a possible fire. A third alarm alert is sent to the fire department, requesting emergency assistance. This ensures that, in extreme cases, the fire department can quickly respond and provide emergency assistance, protecting people and property.

[0054] S204: Adjust charging parameters of the charger according to the current temperature.

[0055] In other implementation scenarios, if the current temperature does not exceed the preset temperature threshold, the charging parameters are intelligently adjusted according to the real-time temperature to balance charging speed and safety. Charging parameters include at least one of charging current, charging voltage, and charging protocol. For example, if the current temperature is low, the current is slightly increased (such as +0.5A) to compensate for the decrease in charging efficiency caused by low temperature. If the current temperature is moderate, the optimal charging parameters are maintained (such as PD fast charging full power output). If the current temperature is close to the preset temperature threshold, the current is reduced (such as 0.2A for every 1°C increase) to prevent sudden overheating. In other implementation scenarios, when the temperature is high, switch from fast charging (PD3.0) to slow charging (BC 1.2), or reduce the voltage (such as from 9V→5V) to reduce heat generation.

[0056] In one embodiment, the adjusted charging voltage is obtained according to the following formula:

[0057] in, is the adjusted charging voltage, is the current temperature, is the preset reference temperature, It is a negative number and is negatively correlated with the ambient temperature.

[0058] According to this formula, the charging voltage can be dynamically adjusted according to the current temperature to ensure safe charging and performance of the battery at different temperatures. When the current temperature is higher than the reference temperature, is a positive value, If it is a negative number, the charging voltage will decrease accordingly. When the current temperature is lower than the reference temperature, is a negative value, If it is a negative number, the charging voltage will increase.

[0059] Indicates the rate of change of charging voltage per degree Celsius temperature change, which is negatively correlated with the ambient temperature. When the ambient temperature is higher, For example, if the current temperature is 0℃, =-0.05V / °C, the current temperature is 80°C, =-0.5V / °C.

[0060] From the above description, it can be seen that in this embodiment, the preset temperature threshold is obtained based on the ambient temperature and device status information, and the threshold can be dynamically adjusted according to different situations to ensure charging safety under different conditions. The current temperature of the charger is monitored in real time and compared with the preset temperature threshold. The current charging power of the charger can be reduced or the power supply path of the charger can be cut off in time to ensure that necessary measures are taken when the temperature exceeds the threshold to prevent overheating problems. An alarm log is generated and a first alarm prompt is issued to the user and a second alarm prompt is issued to the target contact. This can ensure that relevant personnel are aware of the abnormal situation of the equipment in a timely manner and take corresponding actions quickly, thereby improving the efficiency of responding to emergencies.

[0061] Please refer to Figure 4 , Figure 4 This is a flow chart of another embodiment of the method for controlling an IoT charging device provided by the present invention. In this embodiment, the battery management system can monitor the remaining capacity (SOC) of the battery in real time, and divide the charging process into three stages based on the SOC value. The first stage occurs when the target battery's remaining charge has not reached a first threshold (e.g., 30%). The second stage occurs when the target battery's remaining charge exceeds the first threshold but has not reached a second threshold (e.g., 98%). The third stage occurs when the target battery's remaining charge exceeds the second threshold and reaches full capacity. In the first stage, the target battery's remaining charge is low, requiring a rapid charge increase. Consequently, the first duty cycle is high (e.g., 97%-98%). As the battery charge gradually increases, when the remaining charge exceeds the first threshold and falls below the second threshold, the charger gradually reduces the duty cycle based on the remaining charge percentage. By dynamically adjusting the duty cycle, the charger can more precisely control the charging process, avoiding overcharging or overdischarging and extending battery life. Furthermore, by controlling the charging speed, the problem of battery overheating caused by excessive charging can be avoided. When the battery charge approaches the upper limit of the second threshold (98%), the charger further reduces the duty cycle to a minimum of 5%-10%. This low duty cycle helps prevent overcharging. Even when the target battery is nearly fully charged, charging can continue, but at a lower rate to protect the battery from overcharging. In addition to adjusting the duty cycle, the charger can also dynamically adjust the pulse frequency and charging current according to the target battery state. By dynamically adjusting these parameters, the charger can more accurately control the charging process, ensuring charging efficiency and safety.

[0062] When the remaining charge exceeds the second threshold, the battery is nearly fully charged and enters the saturation charge phase. During this phase, the charger appropriately increases the charge voltage and current to ensure full battery saturation. Increasing the voltage and current accelerates chemical reactions within the battery, ensuring that all active materials are fully charged, thereby maximizing battery capacity and performance. After saturation charging is complete, the system switches to trickle charge mode. In this mode, the charge current is low, typically 5%-10% of the battery's rated capacity. Trickle charge aims to maintain the battery's full charge while compensating for self-discharge, preventing charge loss during idle time. During trickle charge, the intermittent pulse circuit outputs pulsed current at a set frequency and duty cycle. These pulses help further repair the battery's internal chemistry, promote balanced charging, reduce cell polarization, and extend battery life and performance.

[0063] When increasing the charging voltage and current, dynamic step-by-step voltage and current adjustments can be used to ensure full battery saturation. By gradually increasing the charging voltage and current, the charging process can be controlled, ensuring that the chemical reactions within the battery proceed fully and stably. This method prevents overcharging and overheating while maximizing battery capacity. After saturation charging, when trickle charging mode is entered, the voltage can be dynamically stepped down. This gradual voltage reduction maintains a full battery charge while minimizing the effects of voltage on the battery, preventing overcharging or damage. This method helps maintain a stable battery state and prolongs battery life.

[0064] By dynamically adjusting the voltage and current in steps, the battery charging process can be more finely controlled to ensure that the battery is fully charged and maintained in optimal condition. This helps optimize charging efficiency, improve battery performance, and ensure battery safety, thereby extending battery life and providing a reliable power supply.

[0065] The method for controlling an IoT charging device provided by the present invention comprises the following steps: S301: When the remaining power does not reach the second threshold, determine whether the current temperature exceeds the preset pause threshold. If so, execute step S302.

[0066] In a specific implementation scenario, when the remaining power does not reach the second threshold, the charging current and charging voltage are large, and therefore the heat generated during charging is also high. Therefore, it is necessary to constantly monitor the current temperature of the charger and make timely adjustments. A preset pause threshold is obtained. If the preset pause threshold is lower than the preset temperature threshold, the preset pause threshold can be calculated based on the preset temperature threshold.

[0067] If the current temperature exceeds the preset pause threshold, then corresponding processing needs to be performed to prevent the temperature from rising. If the current temperature does not exceed the preset pause threshold, then charging can continue according to the current charging parameters.

[0068] S302: Driving the charger to pause charging for a preset time period to obtain battery information of the target battery.

[0069] In a specific implementation scenario, if the current temperature exceeds a preset pause threshold, the charger will pause charging for a preset duration (e.g., 5 seconds). This stops the heat generated by charging, allowing the charger to cool naturally and effectively reducing the temperature. During this pause, battery information of the target battery is acquired, including charging voltage, charging current, battery temperature, and battery level. Subsequent charging strategies can be adjusted based on this battery information. By analyzing this battery information, the cause of the heat generation (such as poor contact or overheating) can be located.

[0070] S303: reducing the charging voltage and / or the charging current, and performing charging with the reduced charging voltage and / or the reduced charging current.

[0071] In one specific implementation, after the pause ends, the original charging mode is not directly restored. Instead, the charging voltage and / or charging current are reduced. For example, the charging voltage is reduced from 9V to 8V to reduce the intensity of the electrochemical reaction, and the charging current is reduced from 3A to 2A to directly reduce heat generation. Charging is then restarted using the adjusted low voltage / current, while temperature changes are continuously monitored. If the temperature again approaches the preset pause threshold, steps S302-S303 are repeated.

[0072] As can be seen from the above description, in this embodiment, active charging is paused to avoid temperature runaway, reduce the risk of fire, and maintain charging as much as possible within a safe range, rather than simply terminating it completely. Data collection during the pause period allows for early identification of battery degradation trends. Consequently, charging data is stored and analyzed on the cloud platform to optimize charging strategies.

[0073] In one implementation scenario, the charger displays device status information through a built-in human-computer interaction component, where the device status information includes at least one of charging voltage, current, time, power level, pulse dynamics, and fan status. The user can also input adjustment instructions to the charger through the human-computer interaction component, and the charger can adjust the charging parameters according to the adjustment instructions, such as reducing the charging power or reducing the charging current.

[0074] See also Figure 5 , Figure 5 The figure is a schematic diagram of the structure of an embodiment of a charger provided by the present invention. The charger is used to implement the method described above. The charger 1 includes a power supply motherboard 11, a communication motherboard 12, and a display screen 13. External electrical energy is processed at the input of the power supply motherboard 11 and then output through its output. The communication motherboard 12 is connected to the power supply motherboard 11 and the display screen 13, respectively, so that the display screen 13 can display device status information collected by the communication motherboard.

[0075] The communication mainboard 12 includes: a main control chip 121, a communication module 122, a display interface 123, a current acquisition module 124, a relay 125, a MOS tube power output module 126, an AD-DC power supply module 127, a voltage acquisition module 128, and a temperature sensor 129.

[0076] The communication module 122 is connected to the main control chip 121 to remotely connect and communicate with the cloud device; the display interface 123 is connected to the main control chip 121 and the display screen 13 respectively, and the main control chip 121 displays the device status information through the display screen 13, and the device status information includes at least one of charging voltage information, current information, time information, power information, pulse dynamic information and fan status information; the current acquisition module 124 is connected to the main control chip 121 and obtains the current information of the power supply motherboard 11; the relay 125 is connected to the main control chip 121 and the display screen 13 respectively. The main control chip 121 is connected to the input end of the power supply motherboard 11; the MOS tube power output module 126 is respectively connected to the output end of the main control chip 121 and the power supply motherboard 11 to control the DC voltage output; the AD-DC power supply module 127 is connected to the relay 12, converts the input electric energy into AD and supplies power to the communication motherboard 12; the voltage acquisition module 128 is connected to the main control chip 121 and obtains the charging voltage information of the power supply motherboard 11; the temperature sensor 129 is connected to the main control chip 121 and obtains the temperature information of the power supply motherboard 11.

[0077] The power supply motherboard 11 is responsible for power input conversion and output, while the communication motherboard 12 implements intelligent management and control. The communication motherboard 12 contains a main control chip 121, which serves as the "brain," connecting to a cloud server via a communication module 122 (e.g., 4G). It is equipped with multiple sensors (current acquisition module 124, voltage acquisition module 128, and temperature sensor 129) to monitor the power supply status (voltage, current, and temperature) and device operating information (battery charge, time, fan status, etc.) in real time, displaying these information on the display 13. The main control chip 121 controls the external power input via a relay 126 and precisely manages the DC output via a MOS transistor 128. A unique AD-DC power supply module 127 ensures the communication system can operate independently even in the event of an external power anomaly. When an anomaly such as overvoltage, overcurrent, or overheating is detected, the main control chip 121 immediately triggers a local alarm (such as an audible and visual alert) and sends an alarm message, including the user's location, to the user's mobile phone via a cloud device. It also supports remote user-initiated commands (such as emergency power off), thus achieving comprehensive charging safety protection from status awareness, risk warnings, and remote intervention.

[0078] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A method for controlling an Internet of Things charging device, characterized in that: Applied to a charger with Internet of Things function, the charger communicates and interacts with cloud devices through the Internet of Things, and the charger is used to charge electric vehicles; The method for controlling the Internet of Things charging equipment includes: Obtaining the ambient temperature of the charger during charging and / or device status information of the charger, and obtaining the current location through a built-in positioning component; Sharing the ambient temperature and / or the device status information, and the current location to the cloud device; determining whether the charger is in an abnormal state based on the ambient temperature and / or the device status information; If so, the charger is driven to issue an abnormal alarm and output the alarm information to the cloud device, the alarm information including the current location; so that the mobile device bound to the charger can obtain the alarm information and remotely control the charger through the cloud device.

2. The method for controlling the Internet of Things charging equipment according to claim 1, characterized in that: After the step of obtaining the ambient temperature of the charger during charging and / or the device status information of the charger, the method further includes: Acquire a preset temperature threshold based on the ambient temperature and / or the device status information; The step of determining whether the charger is in an abnormal state based on the ambient temperature and / or the device status information includes: Determining whether the current temperature exceeds the preset temperature threshold; If so, reducing the current charging power of the charger or cutting off the power supply path of the charger; If not, adjusting the charging parameters of the charger according to the current temperature; The step of driving the charger to issue an abnormality alarm includes: Collect current information to generate an alarm log, and issue a first alarm prompt to the user and / or a second alarm prompt to the target contact, wherein the current information includes at least one of the current time, the current location, the current temperature, and the working status of the charger.

3. The method for controlling the Internet of Things charging equipment according to claim 2, characterized in that: The step of obtaining a preset temperature threshold based on the ambient temperature and / or the device status information includes: Get the basic temperature threshold; Acquiring a degree of device aging according to the device status information, lowering the basic temperature threshold based on the degree of device aging to obtain the preset temperature threshold, wherein the higher the degree of device aging, the greater the reduction in the basic temperature threshold; and / or If the ambient temperature is higher than the first ambient threshold, increasing the basic temperature threshold to obtain the preset temperature threshold; If the ambient temperature is lower than the second ambient threshold, the basic temperature threshold is lowered to obtain the preset temperature threshold.

4. The method for controlling the Internet of Things charging equipment according to claim 3, characterized in that: The preset temperature thresholds include a first target threshold, a second target threshold, a third target threshold, and a fourth target threshold that increase in sequence; When the current temperature exceeds the first target threshold, reducing the current charging power of the charger; When the current temperature exceeds the second target threshold, issuing the first alarm prompt to the user and providing the user with an option to stop charging; When the current temperature exceeds the third target threshold, cutting off the power supply path of the charger and issuing a second alarm prompt to the target contact; When the current temperature exceeds the fourth target threshold, cutting off the power supply path of the charger and sending a third alarm prompt to the fire department; The charger uses a pulse level to charge; the temperature-based charging control method and the management and control method of the Internet of Things charging device also include: When the remaining power of the target battery being charged does not reach a first threshold, driving the charger to output a pulse level with a first duty cycle; When the remaining power of the target battery exceeds the first threshold but does not reach a second threshold, driving the charger to output a pulse level with a second duty cycle, where the second duty cycle is lower than the first duty cycle; The step of adjusting the charging parameters of the charger according to the current temperature includes: When the remaining power does not reach the second threshold, determining whether the current temperature exceeds a preset pause threshold; If so, the charger is driven to pause charging for a preset time period, and battery information of the target battery is obtained, where the battery information includes at least one of the charging voltage, the charging current, the battery temperature, and the battery power.

5. The method for controlling the Internet of Things charging equipment according to claim 4, characterized in that: The charger uses a pulse level to charge; the temperature-based charging control method and the management and control method of the Internet of Things charging device also include: When the remaining power of the target battery being charged does not reach a first threshold, driving the charger to output a pulse level with a first duty cycle; When the remaining power of the target battery exceeds the first threshold but does not reach a second threshold, driving the charger to output a pulse level with a second duty cycle, where the second duty cycle is lower than the first duty cycle; The step of adjusting the charging parameters of the charger according to the current temperature includes: When the remaining power does not reach the second threshold, determining whether the current temperature exceeds a preset pause threshold; If so, the charger is driven to pause charging for a preset time period, and battery information of the target battery is obtained, where the battery information includes at least one of the charging voltage, the charging current, the battery temperature, and the battery power.

6. The method for controlling the Internet of Things charging equipment according to claim 4, characterized in that: After the step of driving the charger to pause charging for a preset time, the method further includes: The charging voltage and / or the charging current are reduced, and charging is performed using the reduced charging voltage and / or the reduced charging current.

7. The method for controlling the Internet of Things charging equipment according to claim 4, characterized in that: The method for controlling the Internet of Things charging device further includes: When the remaining power exceeds the second threshold, the charging voltage and / or the charging current are increased stepwise, and the battery is charged for a preset time period using the increased charging voltage and / or charging current; The pulse level is output according to a preset frequency and a preset duty cycle, and the pulse level is reduced in a step-by-step manner.

8. The method for controlling the Internet of Things charging equipment according to claim 2, characterized in that: The step of adjusting the charging parameters of the charger according to the current temperature includes: The adjusted charging voltage is obtained according to the following formula: in, is the adjusted charging voltage, is the current temperature, is the preset reference temperature, It is a negative number and is negatively correlated with the ambient temperature.

9. The method for controlling the Internet of Things charging equipment according to claim 2, characterized in that: The charger displays device status information through a built-in human-computer interaction component, wherein the device status information includes at least one of charging voltage, current, time, power, pulse dynamics, and fan status; The method for controlling the Internet of Things charging device further includes: The adjustment instruction input by the user is received through the human-computer interaction component, and the charging parameter is modified according to the adjustment instruction.

10. A charger for implementing the method for controlling an IoT charging device according to any one of claims 1 to 9, characterized in that: The charger includes a power supply mainboard, a communication mainboard, and a display screen. External electric energy is input and processed through the input end of the power supply mainboard and then outputted through the output end of the power supply mainboard. The communication mainboard is connected to the power supply mainboard and the display screen respectively. The communication mainboard includes: Main control chip; The communication module is connected to the main control chip to remotely connect and communicate with the cloud server; a display interface, connected to the main control chip and the display screen, respectively, wherein the main control chip displays device status information through the display screen, wherein the device status information includes at least one of charging voltage information, current information, time information, power information, pulse dynamic information, and fan status information; The current acquisition module is connected to the main control chip and obtains the current information of the power supply motherboard; Relays are connected to the input terminals of the main control chip and the power supply motherboard respectively; The MOS tube power output module is connected to the output terminals of the main control chip and the power supply motherboard respectively to control the DC voltage output; The AD-DC power supply module is connected to the relay, converts the input power into DC and supplies power to the 4G communication motherboard; The voltage acquisition module is connected to the main control chip and obtains the charging voltage information of the power supply motherboard; The temperature sensor is connected to the main control chip and obtains the temperature information of the power supply motherboard.

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