Vehicle low-voltage storage battery electricity shortage early warning method, device and equipment based on big data and vehicle

Abstract

The invention provides a vehicle low-voltage storage battery power shortage early warning method, device and equipment based on big data and a vehicle, which are used for solving the problems that a user easily neglects the power shortage of a low-voltage storage battery in an existing non-inductive starting mode, vehicle starting fails, and rescue and user complaints are increased. The vehicle low-voltage storage battery electricity shortage early warning method based on the big data comprises the steps that the current power-on and power-off state of a vehicle, the remaining electric quantity of a power battery, the voltage of a low-voltage storage battery, the vehicle door lock state and seat pressure data are obtained; and when it is confirmed that the low-voltage storage battery of the vehicle is about to lack of electricity according to the current power-on and power-off state of the vehicle, the remaining electric quantity of the power battery, the voltage of the low-voltage storage battery, the vehicle door lock state and the seat pressure data, an early warning prompt is output to a user terminal.

Description

Technical Field

[0001] The present application relates to the field of vehicle power control, and specifically to a method, device, equipment and vehicle for warning low-voltage battery power of a vehicle based on big data. Background Art

[0002] With the development and rapid popularization of smart electric vehicles, the vehicle starting method is basically seamless starting, and the traditional start button has been cancelled.

[0003] Since the sensorless start system does not require the key to be inserted, it can be started by pressing a button or approaching the vehicle. This convenience allows users to hardly feel the immediate status of the low-voltage battery when starting the vehicle; therefore, even if the low-voltage battery is low, as long as the vehicle can be started, the user may not notice the abnormality of the power. In addition, some users may not understand that behaviors such as parking the vehicle for a long time and using electrical equipment after the engine is turned off will cause the low-voltage battery to run low; for example, turning on the hazard warning lights when the engine is turned off and the vehicle is parked will cause the low-voltage battery to continue to discharge during parking.

[0004] Therefore, the sensorless starting method will cause users to be unaware of some improper usage methods that may easily cause the low-voltage battery to run low. Users will continue to use the vehicle when the battery is low, and then the vehicle will be unable to start due to low-voltage battery. Users can only choose to call for rescue or ask 4S shops for help to jump-charge the vehicle's low-voltage battery, which not only increases the rescue workload but also causes user complaints. Summary of the invention

[0005] The present invention provides a vehicle low-voltage battery low-power warning method, device, equipment and vehicle based on big data, which is used to solve the problem that the existing non-sensing starting method easily causes users to ignore the low-voltage battery low power, resulting in vehicle starting failure, increased rescue and user complaints.

[0006] The technical solution of the present invention is: On the one hand, the present application provides a vehicle low-voltage battery power shortage warning method based on big data, comprising: Obtain the vehicle's current power-on and power-off status, remaining power of the power battery, low-voltage battery voltage, door lock status, and seat pressure data; When it is confirmed that the vehicle's low-voltage battery is about to run low based on the vehicle's current power-on and power-off status, remaining power of the power battery, low-voltage battery voltage, door lock status, and seat pressure data, an early warning prompt is output to the user terminal.

[0007] Preferably, when it is confirmed that the low-voltage battery of the vehicle is about to run out of power based on the current power-on and power-off status of the vehicle, the remaining power of the power battery, the voltage of the low-voltage battery, the door lock status and the seat pressure data, the step of outputting a warning prompt to the user terminal includes: When the low-voltage battery voltage is lower than the preset voltage and maintains the preset time, the vehicle is powered on, and the remaining power of the power battery is lower than the preset power, an early warning prompt is output to the user terminal suggesting charging the low-voltage battery; When the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a powered-off state, and there is someone in the front seat, or when the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a powered-off state, and the door locks are not locked, a low-voltage battery warning prompt is output to the user terminal, suggesting starting the vehicle or charging the low-voltage battery.

[0008] Preferably, when the voltage of the low-voltage battery is less than a preset voltage and is maintained for a preset time, the vehicle is in a powered-on state, and the remaining power of the power battery is less than a preset power, the method further includes: Get the real-time location of the vehicle; According to the real-time position of the vehicle, a repair shop within a preset distance range from the vehicle is identified, and the identified repair shop information is recommended to the user terminal.

[0009] Preferably, when the voltage of the low-voltage battery is less than a preset voltage and is maintained for a preset time, the vehicle is in a powered-off state, and someone is sitting in the front seat, or when the voltage of the low-voltage battery is less than a preset voltage and is maintained for a preset time, the vehicle is in a powered-off state, and the door locks are not locked, the method further includes: Turn off electrical components that can only be turned on and off by hard key switches and are currently in the on state.

[0010] Preferably, the preset voltage is a pre-calibrated value or a value manually adjusted by a user.

[0011] On the other hand, the present application also provides a device for preventing low-voltage battery power failure in vehicles based on big data, including: The first acquisition module is used to obtain the current power-on and power-off status of the vehicle, the remaining power of the power battery, the voltage of the low-voltage battery, the door lock status and the seat pressure data; The early warning module is used to output an early warning prompt to the user terminal when it is confirmed that the vehicle's low-voltage battery is about to run out of power based on the vehicle's current power-on and power-off status, the remaining power of the power battery, the low-voltage battery voltage, the door lock status and the seat pressure data.

[0012] Preferably, the early warning module includes: The first warning unit is used to output a warning prompt of low power of the low-voltage battery to the user terminal, suggesting charging the low-voltage battery, when the voltage of the low-voltage battery is less than a preset voltage and maintained for a preset time, the vehicle is in a powered-on state, and the remaining power of the power battery is less than a preset power; The second warning unit is used to output a warning prompt to the user terminal that the low-voltage battery is low and it is recommended to start the vehicle or charge the low-voltage battery when the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a power-off state, and there is someone in the front seat; or when the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a power-off state, and the door locks are not locked.

[0013] Preferably, when the voltage of the low-voltage battery is less than a preset voltage and is maintained for a preset time, the vehicle is in a powered-on state, and the remaining power of the power battery is less than a preset power, the device further includes: The second acquisition module is used to acquire the real-time position of the vehicle; The recommendation module is used to identify the repair shops within a preset distance range from the vehicle according to the real-time location of the vehicle, and recommend the identified repair shop information to the user terminal.

[0014] On the other hand, the present application also provides a control device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the above-mentioned vehicle low-voltage battery low power warning method based on big data are implemented.

[0015] On the other hand, the present application also provides a vehicle, which is used to upload the vehicle's current power on and off status, remaining power of the power battery, low-voltage battery voltage, door lock status and seat pressure data to a cloud platform, so that the cloud platform executes the above-mentioned big data-based vehicle low-voltage battery low power warning method.

[0016] The beneficial effects of the present invention are: Once it is confirmed that the low-voltage battery is about to run out of power, the warning information will be pushed to the user terminal (such as a mobile phone APP) to remind the user to start the vehicle or charge the vehicle in time, so as to realize the charging of the low-voltage battery; this warning mechanism can let the user know the status of the low-voltage battery in advance, so that the user will not ignore the problem of low-voltage battery power due to the convenience of the non-sensing starting method. By analyzing the real-time status data of the vehicle through the algorithm model of the cloud platform, the low-voltage battery status can be judged more accurately and the user can be notified in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a flow chart of a method for early warning of low-voltage battery power failure in a vehicle based on big data in an embodiment of the present application; Figure 2 It is a flow chart of a method for early warning of low-voltage battery power failure in a vehicle based on big data in an embodiment of the present application; Figure 3 It is a flow chart of a method for early warning of low-voltage battery power failure in a vehicle based on big data in an embodiment of the present application; Figure 4 It is a flow chart of a method for early warning of low-voltage battery power failure in a vehicle based on big data in an embodiment of the present application; Figure 5 It is a flow chart of a method for early warning of low-voltage battery power failure in a vehicle based on big data in an embodiment of the present application; Figure 6 It is a flow chart of a method for early warning of low-voltage battery power failure in a vehicle based on big data in an embodiment of the present application; Figure 7 This is a structural block diagram of a vehicle low-voltage battery low-power warning device based on big data in an embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of those skilled in the art, the present invention is further described below with reference to the accompanying drawings. The description is relatively detailed, but it cannot be understood as limiting the scope of the present invention. The obvious variations and replacement forms of the following examples are all within the scope of protection of this patent.

[0019] Since the senseless starting method lacks intuitive feedback, users are not aware of the low-voltage battery power shortage, and continue to use the vehicle when the battery is low, which eventually causes the vehicle to fail to start, increases the rescue workload and causes user complaints. To this end, the embodiment of the present application provides a vehicle low-voltage battery power shortage warning method based on big data. When the method analyzes the low-voltage battery is about to run out of power based on the real-time status data of the vehicle, it will push the warning information to the user terminal (such as a mobile phone APP) to remind the user to start the vehicle or charge the vehicle in time, thereby realizing the charging of the low-voltage battery; this warning mechanism can let the user know the status of the low-voltage battery in advance, and avoid the user ignoring the low-voltage battery power shortage problem due to the convenience of the senseless starting method.

[0020] Reference Figure 1 The vehicle low-voltage battery power shortage warning method based on big data in the embodiment of the present application includes: S101, obtaining the current power-on and power-off status of the vehicle, the remaining power of the power battery, the voltage of the low-voltage battery, the door lock status and the seat pressure data; S102: When it is confirmed that the low-voltage battery of the vehicle is about to run out of power based on the current power-on and power-off status of the vehicle, the remaining power of the power battery, the voltage of the low-voltage battery, the door lock status and the seat pressure data, a warning prompt is output to the user terminal.

[0021] The vehicle's power-on or power-off status refers to whether the vehicle's power system is in an activated state, for example, whether the vehicle is powered on, started, idling, or off. The vehicle's electronic control unit (ECU) determines whether the vehicle is powered on or off based on information such as the vehicle's one-button start switch status and motor speed.

[0022] The Battery Management System (BMS) monitors the voltage, current, temperature and other parameters of the power battery in real time, and calculates the remaining power of the power battery (SOC, State of Charge).

[0023] The low-voltage battery voltage refers to the voltage of the vehicle's auxiliary battery (12V lead-acid battery or lithium-ion battery), which is usually used to start the engine and power the vehicle's electronic equipment. The low-voltage battery voltage is directly measured by the vehicle's voltage sensor.

[0024] The door lock status refers to whether each door of the vehicle is locked or unlocked. Each door is equipped with a lock sensor, which detects whether the door is locked.

[0025] Seat pressure data refers to whether there is a passenger in the vehicle seat, which is detected by a pressure sensor installed on the seat.

[0026] Ultimately, these real-time status data of the vehicle are sent to the cloud platform through the Internet of Vehicles function.

[0027] In this embodiment of the application, step S102 includes: S1021, when the voltage of the low-voltage battery is lower than a preset voltage and remains for a preset time, the vehicle is powered on, and the remaining power of the power battery is lower than a preset power, outputting a warning prompt of low power of the low-voltage battery to the user terminal, suggesting charging the low-voltage battery; S1022. When the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a powered-off state, and there is someone in the front seat; or when the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a powered-off state, and the door locks are not locked, a low-voltage battery warning prompt is output to the user terminal, suggesting starting the vehicle or charging the low-voltage battery.

[0028] Among them, under the condition of S1021, it is indicated that the vehicle is currently in an emergency situation where the low-voltage battery is about to be exhausted and the remaining power of the power battery is also low during operation. For example, for electric vehicles or hybrid vehicles: the low-voltage battery is about to be exhausted due to the long-term idling of the vehicle in congested road conditions, resulting in the inability of the generator to effectively charge the low-voltage battery; the long-term use of the vehicle's air conditioner, audio, headlights and other electrical equipment increases the burden on the low-voltage battery, etc.

[0029] In the scenario of step S1021, by outputting a warning prompt to the user terminal that the low-voltage battery is low and suggesting to start the vehicle or charge the low-voltage battery, the user can charge the vehicle's power battery or send the vehicle to a repair shop for repair before the low-voltage battery is depleted, thereby avoiding the low-voltage battery from being completely depleted.

[0030] In step S1022, for the scenario where the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a powered-off state, and there is someone in the front seat, in this scenario, since the vehicle is powered off, it indicates that the occupants may have forgotten to turn off the lights, audio, air conditioning or other electrical equipment, resulting in a continuous decrease in the power of the low-voltage battery. At this time, by outputting a warning prompt to the user terminal that the low-voltage battery power is low and suggesting starting the vehicle or charging the low-voltage battery, the user can promptly turn off the electrical equipment that is not turned off to reduce the power loss of the low-voltage battery; the user can also start the vehicle to use the generator to generate electricity to charge the low-voltage battery.

[0031] Similarly, in step S1022, when the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a power-off state and the door locks are not locked, in this scenario, since the vehicle has been powered off, it indicates that the occupants may have forgotten to turn off the hazard warning lights, lights, audio, air conditioning or other electrical equipment, resulting in a continuous decrease in the power of the low-voltage battery. At this time, by outputting an early warning prompt to the user terminal that the low-voltage battery power is low and suggesting starting the vehicle or charging the low-voltage battery, the user can promptly turn off the electrical equipment that is not turned off to reduce the power loss of the low-voltage battery; the user can also start the vehicle and use the generator to generate electricity to charge the low-voltage battery.

[0032] In the embodiment of the present application, for the scenario of step S1021, the user terminal can also be helped to perform low-voltage battery charging as soon as possible by pushing the repair shop information to the user terminal. At this time, the real-time location of the vehicle is obtained; according to the real-time location of the vehicle, the repair shop within the preset distance range from the vehicle is identified, and the identified repair shop information is recommended to the user terminal. The user selects the repair shop that he thinks is appropriate to contact based on the repair shop information, so that he can get help quickly.

[0033] For the scenario of step S1022, considering that the current vehicle is usually equipped with a one-touch power-off button, the one-touch power-off button cannot turn off electrical devices that can only be turned on and off by a hard key switch, such as the hazard warning light, which can only be turned on and off by a physical hard key. At this time, the power consumption of the low-voltage battery can be reduced by actively turning off such electrical devices that can only be turned on and off by a hard key switch and are currently in the on state.

[0034] In addition, considering that different users have different levels of anxiety about the remaining voltage of the low-voltage battery, in an embodiment of the present application, the preset voltage can be set to a pre-calibrated value or a value manually adjusted by the user, so that an early warning prompt is issued based on the voltage threshold manually adjusted by the user, thereby improving the user experience.

[0035] In the embodiment of the present application, the following rules are provided for outputting warning prompts to the user terminal: Rule 1: If Figure 2 , the message push process when the vehicle is powered on and the remaining power of the vehicle power battery is small and the battery voltage is low.

[0036] In step S201, the cloud platform determines whether the vehicle power supply status is powered on. If it is judged to be yes, it jumps to step S202. If it is judged to be no, it jumps to step S201 to continue judging.

[0037] Step S202, determine whether the remaining power of the power battery is less than or equal to the preset power, if it is determined to be yes, jump to step S203. If it is determined to be no, jump to step S202 to continue the determination.

[0038] Step S203, determine whether the low-voltage battery voltage is less than the preset voltage U1 for a preset time t1, if the determination is yes, jump to step S204. If the determination is no, jump to step S203 to continue determination.

[0039] Step S204: Push a message through the user terminal APP: "The low-voltage battery is low, please charge the low-voltage battery in time." Rule 2: If Figure 3 , the message push process when the vehicle is powered off, there is someone in the driver's seat and the battery voltage is low.

[0040] Step S301, the cloud platform determines whether the vehicle power supply status is powered on, if it is judged as no, then jump to step S302. If it is judged as yes, then jump to step S301 to continue judging.

[0041] Step S302, determine whether the driver's seat is occupied, if the determination is yes, jump to step S303. If the determination is no, jump to step S302 to continue determination.

[0042] Step S303, determine whether the low-voltage battery voltage is less than the preset voltage U1 for a preset time t1. If the determination is yes, jump to step S33. If the determination is no, jump to step S32 to continue determination. Step S304: Push a message through the user terminal APP: "The low-voltage battery is low, please charge the low-voltage battery or start the vehicle in time." Rule 3: If Figure 4, the message push process when the vehicle is powered off, there is someone in the passenger seat and the battery voltage is low.

[0043] Step 401, the cloud platform determines whether the vehicle power supply is powered on. If it is not, the process jumps to step S402. If it is yes, the process jumps to step S401 to continue the determination.

[0044] Step S402, judging whether there is someone in the passenger seat by whether the passenger pressure exceeds the set pressure, if it is judged to be yes, then jump to step S403. If it is judged to be no, then jump to step S402 to continue judging.

[0045] Step S403, determine whether the low-voltage battery voltage is less than the preset voltage U1 for a preset time t1. If the determination is yes, jump to step S404. If the determination is no, jump to step S403 to continue determination. Step S404: Push a message through the user terminal APP: "The low-voltage battery is low, please charge the low-voltage battery or start the vehicle in time." Rule 4: If Figure 5 , the message push process when the vehicle is powered off, the driver's side door is locked and the battery voltage is low.

[0046] Step 501, the cloud platform determines whether the vehicle power supply is powered on, if it is not, then jump to step S502. If it is yes, then jump to step S501 to continue the determination.

[0047] Step S502, determine whether the driver's door lock is locked, if it is determined to be locked, jump to step S503. If it is determined to be locked, jump to step S502 to continue the determination.

[0048] Step S504, determine whether the low-voltage battery voltage is less than the preset voltage U1 for a preset time period t1, if the determination is yes, jump to step S504. If the determination is no, jump to step S503 to continue determination.

[0049] Step S504: Push a message through the user terminal APP: "The low-voltage battery is low, please charge the low-voltage battery or start the vehicle in time." Rule 5: If Figure 6 , the message push process when the vehicle is powered off, the passenger side door is locked and the battery voltage is low.

[0050] Step 601, the cloud platform determines whether the vehicle power supply is powered on. If it is judged as no, it jumps to step S602. If it is judged as yes, it jumps to step S601 to continue judging.

[0051] Step S602, determine whether the passenger side door lock is locked, if it is determined to be locked, jump to step S603. If it is determined to be locked, jump to step S602 to continue the determination.

[0052] Step S603, determine whether the low-voltage battery voltage is less than the preset voltage U1 for a preset time t1, if the determination is yes, jump to step S604. If the determination is no, jump to step S603 to continue determination.

[0053] Step S604: Push a message through the user terminal APP: "The low-voltage battery is low, please charge or start the vehicle in time." On the other hand, refer to Figure 7 The embodiment of the present application also provides a device for preventing low-voltage battery power failure in a vehicle based on big data, including: The first acquisition module 701 is used to obtain the current power-on and power-off status of the vehicle, the remaining power of the power battery, the voltage of the low-voltage battery, the door lock status and the seat pressure data; The warning module 702 is used to output a warning prompt to the user terminal when it is confirmed that the low-voltage battery of the vehicle is about to run out of power based on the vehicle's current power-on and power-off status, the remaining power of the power battery, the low-voltage battery voltage, the door lock status and the seat pressure data.

[0054] Preferably, the early warning module 702 includes: The first warning unit is used to output a warning prompt of low power of the low-voltage battery to the user terminal, suggesting charging the low-voltage battery, when the voltage of the low-voltage battery is less than a preset voltage and maintained for a preset time, the vehicle is in a powered-on state, and the remaining power of the power battery is less than a preset power; The second warning unit is used to output a warning prompt to the user terminal that the low-voltage battery is low and it is recommended to start the vehicle or charge the low-voltage battery when the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a power-off state, and there is someone in the front seat; or when the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a power-off state, and the door locks are not locked.

[0055] When the voltage of the low-voltage battery is less than the preset voltage and is maintained for a preset time, the vehicle is in a powered-on state, and the remaining power of the power battery is less than the preset power, the device further includes: Preferably, the second acquisition module is used to acquire the real-time position of the vehicle; The recommendation module is used to identify the repair shops within a preset distance range from the vehicle according to the real-time location of the vehicle, and recommend the identified repair shop information to the user terminal.

[0056] On the other hand, the present application also provides a control device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the above-mentioned vehicle low-voltage battery low power warning method based on big data are implemented.

[0057] On the other hand, the present application also provides a vehicle, which is used to upload the vehicle's current power on and off status, remaining power of the power battery, low-voltage battery voltage, door lock status and seat pressure data to a cloud platform, so that the cloud platform executes the above-mentioned big data-based vehicle low-voltage battery low power warning method.

[0058] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0059] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0060] It should also be noted that, in this article, the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, relational terms such as "first" and "second" are used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations, nor can they be understood as indicating or implying relative importance. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements does not include those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0061] The technical solution provided by the present invention is described in detail above. The principle and implementation mode of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the present invention, and the content of this specification should not be understood as limiting the present invention. At the same time, for those skilled in the art, according to the present invention, there will be different forms of changes in the specific implementation mode and application scope. It is not necessary and impossible to list all the implementation modes here, and the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A vehicle low-voltage battery power shortage warning method based on big data, characterized in that: include: Obtain the vehicle's current power-on and power-off status, remaining power of the power battery, low-voltage battery voltage, door lock status, and seat pressure data; When it is confirmed that the vehicle's low-voltage battery is about to run low based on the vehicle's current power-on and power-off status, remaining power of the power battery, low-voltage battery voltage, door lock status, and seat pressure data, an early warning prompt is output to the user terminal.

2. The vehicle low-voltage battery power shortage warning method based on big data according to claim 1 is characterized in that: When it is confirmed that the low-voltage battery of the vehicle is about to run out of power based on the current power-on and power-off status of the vehicle, the remaining power of the power battery, the voltage of the low-voltage battery, the door lock status, and the seat pressure data, the step of outputting a warning prompt to the user terminal includes: When the low-voltage battery voltage is lower than the preset voltage and maintains the preset time, the vehicle is powered on, and the remaining power of the power battery is lower than the preset power, an early warning prompt is output to the user terminal suggesting charging the low-voltage battery; When the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a powered-off state, and there is someone in the front seat, or when the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a powered-off state, and the door locks are not locked, a low-voltage battery warning prompt is output to the user terminal, suggesting starting the vehicle or charging the low-voltage battery.

3. The vehicle low-voltage battery power shortage warning method based on big data according to claim 2 is characterized in that: When the voltage of the low-voltage battery is less than a preset voltage and is maintained for a preset time, the vehicle is in a powered-on state, and the remaining power of the power battery is less than a preset power, the method further includes: Get the real-time location of the vehicle; According to the real-time position of the vehicle, a repair shop within a preset distance range from the vehicle is identified, and the identified repair shop information is recommended to the user terminal.

4. The vehicle low-voltage battery power shortage warning method based on big data according to claim 2 is characterized in that: When the voltage of the low-voltage battery is less than a preset voltage and is maintained for a preset time, the vehicle is in a powered-off state, and someone is sitting in the front seat, or when the voltage of the low-voltage battery is less than a preset voltage and is maintained for a preset time, the vehicle is in a powered-off state, and the door locks are not locked, the method further includes: Turn off electrical components that can only be turned on and off by hard key switches and are currently in the on state.

5. The vehicle low-voltage battery power shortage warning method based on big data according to any one of claims 2 to 4 is characterized in that: The preset voltage is a pre-calibrated value or a value manually adjusted by the user.

6. A big data-based early warning device for preventing low-voltage battery power failure in vehicles, characterized in that: include: The first acquisition module is used to obtain the current power-on and power-off status of the vehicle, the remaining power of the power battery, the voltage of the low-voltage battery, the door lock status and the seat pressure data; The early warning module is used to output an early warning prompt to the user terminal when it is confirmed that the vehicle's low-voltage battery is about to run out of power based on the vehicle's current power-on and power-off status, the remaining power of the power battery, the low-voltage battery voltage, the door lock status and the seat pressure data.

7. The vehicle low-voltage battery power shortage warning device based on big data according to claim 6 is characterized in that: The early warning module includes: The first warning unit is used to output a warning prompt of low power of the low-voltage battery to the user terminal, suggesting charging the low-voltage battery, when the voltage of the low-voltage battery is less than a preset voltage and maintained for a preset time, the vehicle is in a powered-on state, and the remaining power of the power battery is less than a preset power; The second warning unit is used to output a warning prompt to the user terminal that the low-voltage battery is low and it is recommended to start the vehicle or charge the low-voltage battery when the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a power-off state, and there is someone in the front seat; or when the low-voltage battery voltage is less than a preset voltage and maintains a preset time, the vehicle is in a power-off state, and the door locks are not locked.

8. The vehicle low-voltage battery power shortage warning device based on big data according to claim 7 is characterized in that: When the voltage of the low-voltage battery is less than the preset voltage and is maintained for a preset time, the vehicle is in a powered-on state, and the remaining power of the power battery is less than the preset power, the device further includes: The second acquisition module is used to acquire the real-time position of the vehicle; The recommendation module is used to identify the repair shops within a preset distance range from the vehicle according to the real-time location of the vehicle, and recommend the identified repair shop information to the user terminal.

9. A control device, characterized in that: It includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the vehicle low-voltage battery low power warning method based on big data are implemented as described in any one of claims 1 to 5.

10. A vehicle, characterized in that: It is used to upload the vehicle's current power-on and power-off status, remaining power of the power battery, low-voltage battery voltage, door lock status and seat pressure data to a cloud platform, so that the cloud platform executes the vehicle low-voltage battery low power warning method based on big data as described in any one of claims 1-5.

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