CN113270936B - Power supply conversion method and device - Google Patents

Power supply conversion method and device Download PDF

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Publication number
CN113270936B
CN113270936B CN202110812485.4A CN202110812485A CN113270936B CN 113270936 B CN113270936 B CN 113270936B CN 202110812485 A CN202110812485 A CN 202110812485A CN 113270936 B CN113270936 B CN 113270936B
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module
power supply
real
vehicle
powered
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CN113270936A (en
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薛贤海
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Ningbo Joynext Technology Corp
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Ningbo Joynext Technology Corp
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/36—Arrangements using end-cell switching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Telephone Function (AREA)
  • Alarm Systems (AREA)

Abstract

The application discloses a power supply conversion method, which comprises the steps of responding to the fact that a main battery of a vehicle does not meet preset conditions, and obtaining the real-time voltage of a standby battery of the vehicle through a sensor; determining a first candidate working module needing power supply according to the current working state of one or more working modules and/or the triggering operation of a user on one or more working modules; determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the working module which can supply power for the first time at least comprises a trigger circuit module of emergency call service; the method comprises the steps of determining a target module to be powered according to a first candidate working module and a second candidate working module, and performing first power supply on the target module to be powered through a standby battery to enable the target module to be powered to execute corresponding services, so that the problems that the standby battery is quickly exhausted due to the fact that the working module is powered, and the longer power supply time for emergency call services cannot be supported are solved.

Description

Power supply conversion method and device
Technical Field
The present disclosure relates to the field of vehicle control, and more particularly, to a power supply conversion method and apparatus.
Background
In order to improve the driving experience of users, TBOX, i.e. vehicle-mounted terminals, are mounted on many vehicles. The TBOX has multiple functions of data acquisition, remote diagnosis, remote control and the like, and can provide driving assistance and safety guarantee for driving of a user. The emergency call service is an essential basic function of the TBOX, and can automatically or manually trigger by a user to send help seeking information to a preset alarm platform when a vehicle is in an emergency or the like, so that the efficiency of the user for obtaining help in the emergency can be improved, and the driving safety of the user is guaranteed.
However, as technology advances, more and more TBOX is added with functions of 5G, V2X and the like. These functions have the need to push data to the background, with greater power consumption at TBOX. When the vehicle encounters an emergency, the main battery of the vehicle may not be able to continue to power the TBOX, and power has to be supplied to the TBOX through the backup battery. The electric quantity of the backup battery cannot support the long-time starting of the TBOX, and when the electric quantity of the backup battery is used up, the emergency call service cannot continuously send help seeking information outwards, so that the safety of a user is threatened.
Therefore, a power conversion method is needed to improve the endurance time of the TBOX and avoid the situation that the emergency call service cannot be used due to insufficient power, so as to solve the above technical problems in the prior art.
Disclosure of Invention
In order to solve the deficiencies of the prior art, the present application provides a power conversion method and device to solve the above technical problems of the prior art.
In order to achieve the above object, the present application provides in a first aspect a power supply conversion method including:
the method comprises the steps that in response to the fact that a main battery of a vehicle does not meet a preset condition, real-time voltage of a standby battery of the vehicle is obtained through a first preset sensor, and the standby battery is used for supplying power to a vehicle-mounted terminal of the vehicle;
determining a first candidate working module needing power supply in one or more working modules according to the current working state of the one or more working modules and/or the triggering operation of a user on the one or more working modules, wherein the one or more working modules belong to the vehicle-mounted terminal;
determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the working module which can supply power for the first time at least comprises a trigger circuit module of emergency call service;
determining a target module to be powered according to the first candidate working module needing power supply and the second candidate working module which can supply power first and corresponds to the real-time voltage, and performing first power supply on the target module to be powered through the standby battery so as to enable the target module to be powered to execute corresponding services.
In some embodiments, before determining the second candidate operating module capable of first power supply corresponding to the real-time voltage according to the correspondence between the voltage and the operating module capable of first power supply, the power supply conversion method further includes:
acquiring the real-time temperature of the standby battery through a second preset sensor;
determining a power supply rule corresponding to the real-time temperature as a target power supply rule according to a corresponding relation between a preset temperature and the power supply rule;
and determining the corresponding relation between the voltage and the working module capable of first power supply according to the target power supply rule.
In some embodiments, the first supplying, by the backup battery, the target module to be powered to perform a corresponding service includes:
when the standby battery supplies power to the target module to be powered, if the real-time voltage is smaller than a first preset threshold and/or the target module to be powered completes the execution of corresponding services, the vehicle-mounted terminal is switched to a monitoring state so as to cut off the power supply of the standby battery to the target module to be powered except for the communication module and the trigger circuit module of the emergency call service, and the standby battery supplies power to the communication module and the trigger circuit of the emergency call service so as to enable the communication module and the trigger circuit of the emergency call service to be in a state to be awakened.
In some embodiments, the power supply conversion method further comprises:
and when the first candidate working module needing power supply does not exist and the duration time of the first candidate working module needing power supply does not exist exceeds a preset time threshold, switching the vehicle-mounted terminal into a monitoring state.
In some embodiments, the determining, according to the correspondence between the voltage and the first-powered working module, the second candidate working module, which can be powered first, corresponding to the real-time voltage includes:
when the real-time voltage is not less than a second preset threshold, determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the second preset threshold is greater than the first preset threshold;
and when the real-time voltage is smaller than the second preset threshold value, switching the vehicle-mounted terminal into a monitoring state.
In some embodiments, when the real-time voltage is not less than a second preset threshold, determining, according to a correspondence between a voltage and a first power-suppliable working module, a second candidate working module, which is corresponding to the real-time voltage and is suppliable by the first power-suppliable working module, includes:
when the real-time voltage is higher than a third preset threshold value, determining that a second candidate working module which corresponds to the real-time voltage and can supply power for the first candidate working module comprises a trigger circuit module, an SOC module and a communication module of the emergency call service, wherein the third preset threshold value is larger than the second preset threshold value;
and when the real-time voltage is not less than the second preset threshold and not more than the third preset threshold, determining that the second candidate working module capable of first power supply corresponding to the real-time voltage comprises the trigger circuit module of the emergency call service and the communication module.
In some embodiments, the first supplying, by the backup battery, the target module to be powered to perform a corresponding service includes:
when the standby battery supplies power to the target module to be powered for the first time, if the target module to be powered comprises the SOC module and the real-time voltage is smaller than a fourth preset threshold value, the power supply of the SOC module through the standby battery is cut off, and the fourth preset threshold value is smaller than the third preset threshold value.
In some embodiments, the switching the in-vehicle terminal into the listening state includes:
detecting a real-time state of the main battery;
responding to the fact that the real-time voltage of the standby battery is not smaller than a second preset threshold value and the triggering operation of a user on the emergency call service is monitored, and performing first power supply on the target module to be powered through the standby battery;
and/or cutting off the power supply of the vehicle-mounted terminal by the backup battery and supplying power to the vehicle-mounted terminal through the main battery in response to the fact that the main battery meets the preset condition.
In some embodiments, the power supply conversion method further comprises:
when the target module to be powered does not exist and the real-time voltage does not exceed a fifth preset threshold, the vehicle-mounted terminal is switched to a sleep state so as to wake up the vehicle-mounted terminal when the main battery is detected to meet the preset condition, power is supplied to the one or more working modules of the vehicle-mounted terminal through the main battery, and the fifth preset threshold is smaller than a second preset threshold.
In a second aspect, the present application provides a power conversion apparatus, including:
the acquisition module is used for responding to the fact that a main battery of a vehicle does not meet a preset condition, acquiring the real-time voltage of a standby battery of the vehicle through a first preset sensor, wherein the standby battery is used for supplying power to a vehicle-mounted terminal of the vehicle;
the judging module is used for determining a first candidate working module which needs to supply power in the one or more working modules according to the current working state of the one or more working modules and/or the triggering operation of a user on the one or more working modules, and the one or more working modules belong to the vehicle-mounted terminal;
the judging module is further used for determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the working module which can supply power for the first time at least comprises a trigger circuit module of emergency call service;
the control module is used for determining a target module to be powered according to the first candidate working module which needs to be powered and the second candidate working module which can be powered firstly and corresponds to the real-time voltage, and carrying out first power supply on the target module to be powered through the standby battery so as to enable the target module to be powered to execute corresponding services.
In a third aspect, the present application provides a vehicle-mounted terminal, including:
one or more processors; and memory associated with the one or more processors for storing program instructions that, when read and executed by the one or more processors, perform operations comprising:
the method comprises the steps that in response to the fact that a main battery of a vehicle does not meet a preset condition, real-time voltage of a standby battery of the vehicle is obtained through a first preset sensor, and the standby battery is used for supplying power to a vehicle-mounted terminal of the vehicle;
determining a first candidate working module needing power supply in one or more working modules according to the current working state of the one or more working modules and/or the triggering operation of a user on the one or more working modules, wherein the one or more working modules belong to the vehicle-mounted terminal;
determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the working module which can supply power for the first time at least comprises a trigger circuit module of emergency call service;
determining a target module to be powered according to the first candidate working module needing power supply and the second candidate working module which can supply power first and corresponds to the real-time voltage, and performing first power supply on the target module to be powered through the standby battery so as to enable the target module to be powered to execute corresponding services.
The beneficial effect that this application realized does:
the application provides a power supply conversion method which comprises the steps that in response to the fact that a main battery of a vehicle does not meet a preset condition, the real-time voltage of a standby battery of the vehicle is obtained through a first preset sensor, and the standby battery is used for supplying power to a vehicle-mounted terminal of the vehicle; determining a first candidate working module needing power supply in one or more working modules according to the current working state of the one or more working modules and/or the triggering operation of a user on the one or more working modules, wherein the one or more working modules belong to the vehicle-mounted terminal; determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the working module which can supply power for the first time at least comprises a trigger circuit module of emergency call service; the method comprises the steps of determining a target module to be powered according to a first candidate working module needing to be powered and a second candidate working module which can be powered firstly and corresponds to the real-time voltage, performing first power supply on the target module to be powered through a standby battery so as to enable the target module to be powered to execute corresponding services, determining the target module to be powered and supplying power for the first power supply according to the real-time electric quantity of the standby battery, the working state and the calling condition of the working module when a main battery cannot be powered, and avoiding the problems that the electric quantity of the standby battery is exhausted quickly and the longer power supply time for emergency call service cannot be supported due to the fact that the working module which is not powered is powered;
the application also discloses that the real-time temperature of the standby battery is obtained through a second preset sensor; determining a power supply rule corresponding to the real-time temperature as a target power supply rule according to a corresponding relation between a preset temperature and the power supply rule; according to the target power supply rule, determining the corresponding relation between the voltage and the working module capable of supplying power for the first time, and avoiding the situation that the voltage cannot accurately represent the residual electric quantity of the battery due to the fluctuation of the temperature of the battery, so that the accuracy of the electric quantity estimation of the vehicle on the standby battery is influenced, and the working module capable of supplying power for the first time cannot be accurately judged;
the application also discloses that when the standby battery supplies power to the target module to be powered first, if the real-time voltage is smaller than a first preset threshold and/or the target module to be powered completes the execution of corresponding service, the vehicle-mounted terminal is switched to a monitoring state so as to cut off the power supply of the standby battery to the target module to be powered except for the communication module and the trigger circuit module of the emergency call service and supply power to the communication module and the trigger circuit of the emergency call service for second power through the standby battery so as to enable the communication module and the trigger circuit of the emergency call service to be in a state to be awakened, and when the electric quantity of the standby battery does not meet the power supply condition, the standby battery supplies power to the target module to be powered first again after the electric quantity of the standby battery is recovered or the standby battery supplies power to the vehicle-mounted terminal through the main battery when the main battery can recover the power supply, seamless switching between the standby battery and the main battery is realized, repeated restarting of the system can be avoided when the electric quantity of the standby battery does not meet the power supply condition, and the stability of the system is enhanced;
the method comprises the steps that when the first candidate working module needing power supply does not exist and the duration time of the first candidate working module needing power supply does not exist exceeds a preset time threshold, the vehicle-mounted terminal is switched to a monitoring state, and when the first candidate working module needing power supply does not exist, the vehicle-mounted terminal is switched to the monitoring state in time, so that the power consumption of the vehicle-mounted terminal can be reduced, the endurance of the vehicle-mounted terminal can be improved, and the vehicle-mounted terminal can be awakened in time when the subsequent power supply is recovered;
the method comprises the steps that when the real-time voltage is not smaller than a second preset threshold value, a second candidate working module which corresponds to the real-time voltage and can supply power for the first time is determined according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the second preset threshold value is larger than the first preset threshold value; when the real-time voltage is smaller than the second preset threshold value, the vehicle-mounted terminal is switched to a monitoring state, and the vehicle-mounted terminal can be switched to the monitoring state in time when the electric quantity of the standby battery is insufficient, so that the electric quantity of the standby battery is prevented from being further exhausted due to the fact that power is supplied to the working module;
the method comprises the steps that when the real-time voltage is higher than a third preset threshold value, it is determined that a second candidate working module which corresponds to the real-time voltage and can supply power for the first candidate working module comprises a trigger circuit module, an SOC module and a communication module of the emergency call service, and the third preset threshold value is larger than the second preset threshold value; when the real-time voltage is not less than the second preset threshold and not more than the third preset threshold, determining that a second candidate working module capable of first power supply corresponding to the real-time voltage comprises a trigger circuit module of the emergency call service and the communication module, realizing differentiated power supply strategies under different battery voltages, and weakening the influence of other working modules on the endurance of the emergency call service;
when the standby battery supplies power to the target to-be-powered module for the first time, if the target to-be-powered module comprises the SOC module and the real-time voltage is smaller than a fourth preset threshold value, the power supply of the SOC module through the standby battery is cut off, the fourth preset threshold value is smaller than the third preset threshold value, the power consumption of the vehicle-mounted terminal can be further reduced by cutting off the power supply of the SOC when the electric quantity of the standby battery is insufficient, and the power supply duration of emergency call service through the standby battery is prolonged;
the application provides switching the vehicle terminal to the monitoring state includes: detecting a real-time state of the main battery; responding to the fact that the real-time voltage of the standby battery is not smaller than a second preset threshold value and the triggering operation of a user on the emergency call service is monitored, and performing first power supply on the target module to be powered through the standby battery; and/or in response to detecting that the main battery meets the preset condition, cutting off the power supply of the backup battery to the vehicle-mounted terminal and supplying power to the vehicle-mounted terminal through the main battery, and performing first power supply to a target module to be powered again after the electric quantity of the backup battery is recovered or switching to supplying power to the vehicle-mounted terminal through the main battery when the main battery can supply power again, so that seamless switching between the backup battery and the main battery is realized, repeated restarting of the system when the electric quantity of the backup battery does not meet the power supply condition can be avoided, and the stability of the system is enhanced;
this application provides treating power module and not having the target and when real-time voltage does not exceed the fifth threshold of predetermineeing, will vehicle mounted terminal switches to sleep state so that detect the main battery satisfies awaken up when predetermineeing the condition vehicle mounted terminal, and pass through the main battery to vehicle mounted terminal one or more work module supply power, the fifth threshold of predetermineeing is less than the second and predetermines the threshold, through switching vehicle mounted terminal to sleep state when battery power is low excessively, can make and in time awaken all work module so that vehicle mounted terminal can resume the use of all functions as early as possible after the main battery resumes the power supply, has promoted the convenience.
All products of this application need not have all of the above-described effects.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a block diagram of a vehicle-mounted terminal according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of power conversion provided by an embodiment of the present application;
FIG. 3 is a flow chart of a method provided by an embodiment of the present application;
FIG. 4 is a block diagram of an apparatus according to an embodiment of the present disclosure;
fig. 5 is a structural diagram of a vehicle-mounted terminal according to an embodiment of the present application.
Detailed Description
In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As described in the background, more and more functions are integrated into TBOX, i.e., a vehicle-mounted terminal in the related art, resulting in further increase in power consumption thereof. Under the condition that the main battery cannot supply power to the TBOX, the standby battery cannot support long-time endurance of the TBOX, so that the calling of the emergency call service and the endurance time of the vehicle-mounted terminal by a user are influenced, and the safety guarantee of the user is influenced.
In order to solve the technical problem, the present application provides a power supply conversion method, which can adjust the power supply to the working module of the TBOX according to the remaining power of the backup battery and the actual use requirement of the working module of the TBOX by a user or other devices or devices integrated on a vehicle, and improve the cruising ability of the TBOX to the emergency call service.
As shown in fig. 1, a TBOX in the prior art can typically support voice services and data services. As shown in fig. 1, the link of the data service includes a 5G Module and an SOC Module, the link of the voice service includes a Speaker, a power Amplifier, a microphone MIC, and a digital-to-analog signal conversion Module Codec and the 5G Module, where the 5G Module is a communication Module circuit capable of implementing cellular, GNSS, V2X, and the Speaker, the power Amplifier, the microphone MIC, the digital-to-analog signal conversion Module Codec, and the 5G Module jointly form a communication Module.
When a user calls the emergency call service of the TBOX, the trigger circuit Module of the emergency call service can call the communication Module, the communication Module collects voice data of the user through the microphone MIC and the numerical analog signal conversion Module Codec and transmits the voice data to the 5G Module, the 5G Module transmits the voice data to the alarm platform and returns the voice data transmitted by the alarm platform to the user through the numerical analog signal conversion Module Codec, the power Amplifier and the loudspeaker Speaker, so that the user can establish voice communication with the alarm platform through the trigger circuit and the communication Module of the emergency call service.
Example one
Therefore, when the voice service and the data service of the vehicle-mounted terminal can independently operate, as shown in fig. 2, the process of performing the power supply conversion of the vehicle-mounted terminal based on the power supply conversion method disclosed by the present application includes:
s10, responding to the fact that the main battery of the vehicle does not meet the preset conditions, acquiring the real-time voltage of the backup battery of the vehicle through a first preset sensor and acquiring the real-time temperature of the backup battery through a second preset sensor;
wherein, the main battery can supply power to the vehicle-mounted terminal and other vehicle-mounted equipment under the conventional condition. In the case that the voltage of the main battery is too low or the power cannot be supplied, the vehicle-mounted terminal receives a KL30 OFF signal indicating that the main battery cannot supply power, and automatically starts the backup battery for supplying power. The vehicle-mounted terminal can acquire the real-time voltage of the backup battery through a corresponding sensor and acquire the real-time temperature of the backup battery through a temperature sensor after receiving the KL30 OFF signal or in advance. Since the remaining capacity of the battery is positively correlated with the voltage, the real-time voltage of the battery can be used to indicate the remaining capacity of the battery. When the standby battery does not supply power to any working module of the vehicle-mounted terminal, the real-time voltage is the real-time no-load voltage of the standby battery; when the standby battery is supplying power to any working module of the vehicle-mounted terminal, the real-time voltage is the real-time loading voltage of the standby battery.
After the real-time temperature is obtained through measurement, the power supply rule corresponding to the real-time temperature can be determined to be the target power supply rule according to the corresponding relation between the preset temperature and the power supply rule. The target power supply rule may include a correspondence of a voltage to a first powered operational module. The corresponding relation between the voltage and the working module capable of first power supply corresponds to a plurality of voltage thresholds and at least comprises a first preset threshold, a second preset threshold, a third preset threshold, a fourth preset threshold and a fifth preset threshold. Each preset threshold may be determined in advance through experiments, and specifically, all the preset thresholds should be arranged in the order from large to small according to the magnitude of the value: a third preset threshold, a second preset threshold, a fifth preset value, a first preset threshold and a fourth preset threshold. When the real-time voltage is reduced due to the fact that the standby battery supplies power to the vehicle-mounted terminal or other situations, if the real-time voltage is reduced to a corresponding preset threshold value, the power supply mode of the standby battery to the vehicle-mounted terminal can be switched.
S20, when the real-time no-load voltage of the standby battery is not less than a second preset threshold VS2, the vehicle-mounted terminal is switched to a BBN mode;
as shown in fig. 2, where MBN represents the mode in which the main battery is normally powered. When receiving a KL30 OFF signal indicating that the main battery cannot supply power and the real-time no-load voltage of the backup battery is not less than a second preset threshold value, the vehicle-mounted terminal switches from the MBN mode to the BBN mode.
After switching to the BBN mode, the method comprises:
s21, determining a first candidate working module needing first power supply according to the current working state of the working module and/or the triggering operation of a user on the working module;
the operation module of the vehicle-mounted terminal may include a trigger circuit module, an SOC module and a communication module for an emergency call service. The hardware which needs power supply and corresponds to the trigger circuit module of the emergency call service at least comprises a Micro Control Unit (MCU) of the vehicle-mounted terminal and a peripheral sensor unit of the MCU; the hardware needing power supply corresponding to the SOC module at least comprises an SOC processor, peripheral circuits such as an SOC processor memory (EMMC), a double-rate synchronous dynamic random access memory (DDR) and the like, and can be used for executing data processing; the hardware corresponding to the communication Module and requiring power supply at least comprises a 5G Module, a Speaker (Speaker), a power Amplifier (Amplifier), a Microphone (MIC), a numerical analog signal conversion Module (Codec) and other auxiliary circuits, and can be used for uploading data of the SOC Module and/or the trigger circuit Module of the emergency call service to a corresponding receiving end or receiving data of a sending end and returning the data to the SOC Module and/or the trigger circuit Module of the emergency call service.
The MCU included in the trigger circuit module of the emergency call service can be used for calling the communication module to execute corresponding emergency service when receiving the trigger of a user, and can also be used for controlling other functional modules or hardware equipment of the vehicle-mounted terminal.
Specifically, it may be determined that the working module currently in the working state and the working module receiving the trigger operation or the call operation of the user thereto are the first candidate working module requiring the first power supply, and the working module receiving the first power supply may normally execute the corresponding service.
S22, when the first candidate working module needing power supply does not exist after the BBN mode is switched, and the duration time of the first candidate working module needing power supply does not exist exceeds a preset time threshold, switching the vehicle-mounted terminal to a BBLP1 mode;
in the BBLP1 mode, the in-vehicle terminal is in a listening state.
The time threshold may be 40 seconds. In some embodiments, the method further comprises:
s23, when the real-time no-load voltage is smaller than a second preset threshold VS2, the vehicle-mounted terminal is switched to a BBLP1 mode;
in the BBLP1 mode, the in-vehicle terminal is in a listening state.
As shown in fig. 2, when the real-time no-load voltage is less than the second preset threshold VS2, the vehicle-mounted terminal will switch from the MBN mode to the BBLP1 mode.
In the BBLP1 mode, the backup battery may be turned off to power the SOC module and a second power may be provided to the trigger circuit module and the communication module for emergency call services. In the embodiment of the application, the working module is powered for the second time, so that the working module is in a low-power consumption state to be awakened, and is rapidly awakened and corresponding emergency call service or other operations are executed when the electric quantity of the standby battery is recovered or the main battery can normally supply power to the vehicle-mounted terminal.
In a BBLP1 mode, when the main battery recovers the power supply to the vehicle-mounted terminal, the micro control unit MCU contained in the trigger circuit module of the emergency call service can wake up all modules and hardware equipment of the vehicle-mounted terminal so as to provide service for the user again; or when the real-time voltage of the standby battery is not lower than a second preset threshold and the triggering operation of the user on the emergency call service is monitored, the standby battery is used for carrying out first power supply on the corresponding target module to be powered.
After the vehicle-mounted terminal is switched to the BBN mode, the method comprises the following steps:
s30, when the real-time voltage is higher than a third preset threshold VS3, determining that a second candidate working module which corresponds to the real-time voltage and can supply power for the first time comprises a trigger circuit module, an SOC module and a communication module of emergency call service;
when the real-time voltage does not exceed the third preset threshold VS3 and is not lower than a second preset threshold VS2, determining that a second candidate working module which can supply power for the first time and corresponds to the real-time voltage comprises a trigger circuit module and a communication module of the emergency call service;
in the embodiment of the present application, the first power supply to the working module means that sufficient power supply capable of supporting normal operation of the working module is provided to the working module, so that the working module powered by the first power supply can normally execute tasks to be executed, such as providing corresponding services to a user or generating and returning corresponding processing results.
Meanwhile, in the embodiment of the application, according to the experiment in advance and the influence on the normal work or safety of the vehicle-mounted terminal and the vehicle caused by whether each working module can normally run or not, the working module capable of first power supply corresponding to each real-time voltage range is determined in advance, and the first power supply of the standby battery to the working module which is not in the working module capable of first power supply corresponding to the real-time voltage is cut off when the real-time voltage is too low.
When the real-time voltage exceeds a third preset threshold VS3, the vehicle-mounted terminal is switched to a BBECALL1 mode, and the standby battery can supply power for the trigger circuit module, the SOC module and the communication module for the first time in the BBECALL mode; when the real-time voltage does not exceed the third preset threshold VS3 and is not lower than the second preset threshold VS2, the vehicle-mounted terminal is switched to a bbecalal 2 mode, and in the mode, the standby battery can supply power for the trigger circuit module and the communication module for the first time.
S40, determining a target module to be powered according to a second candidate working module capable of first power supply and a first candidate working module needing power supply;
the target module to be powered may be an intersection of the second candidate working module which can be powered first and the first candidate working module which needs to be powered. After the target module to be powered is determined, the vehicle-mounted terminal can control the standby battery to supply power to the target module to be powered for the first time.
When the target module to be powered comprises a trigger circuit module of the emergency call service, the vehicle-mounted terminal can simultaneously control the standby battery to supply power for the communication module for the second time so that the communication module can wait for a user to send out a trigger operation on the emergency call service in a state to be awakened, and the trigger circuit module of the emergency call service can control the standby battery to supply power for the communication module for the first time after receiving the trigger operation on the emergency call service from the user, so that the communication module collects voice data of the user and uploads the voice data to the alarm platform, and then the voice data returned by the alarm platform is returned to the user so as to establish communication between the user and the alarm platform.
After the vehicle-mounted terminal is switched to the BBECALL1 mode, the method further comprises the following steps:
s41, when the real-time voltage of the standby battery is lower than a fourth preset threshold VS4, the vehicle-mounted terminal is switched to a BBECALL2 mode;
when the real-time voltage of the standby battery is lower than a fourth preset threshold value VS4, the power supply of the SOC module through the standby battery can be cut off. Meanwhile, when the real-time voltage of the standby battery is lower than a fourth preset threshold VS4 and the target module to be powered comprises the communication module, the first power supply of the communication module can be continued through the standby battery.
When the vehicle-mounted terminal is switched from the BBECALL2 mode to the BBLP1 mode, the standby battery switches the communication module and the trigger circuit module for the emergency call service from the first power supply to the second power supply, so that the output current of the standby battery is reduced, and the real-time voltage of the standby battery rises to a certain extent although the electric quantity of the standby battery further drops. Through experiments, it can be determined that the fourth preset threshold should be smaller than the first preset threshold and the third preset threshold.
After the vehicle-mounted terminal is switched to the BBECALL1 mode or the BBECALL2 mode after the standby battery supplies power to the target module to be powered, the method comprises the following steps:
s42, when the real-time voltage of the standby battery is lower than a first preset threshold VS1 and/or after the target module to be powered finishes the execution of corresponding services, the vehicle-mounted terminal is switched to a BBLP1 mode;
the target module to be powered to complete execution of the corresponding service may include the SOC module completing the corresponding data service, and the user cutting off the call of the emergency call service after the call is completed. After entering the BBLP1 mode, the vehicle-mounted terminal may cut off power supply to a target module to be powered by the backup battery, except for the communication module and the trigger circuit module of the emergency call service, and perform second power supply to the communication module and the trigger circuit of the emergency call service by the backup battery to make the communication module and the trigger circuit of the emergency call service in a state to be awakened, so as to perform first power supply to the trigger circuit of the emergency call service by the backup battery when a real-time voltage of the backup battery exceeds a second preset threshold or to immediately awaken the communication module and the emergency call service after power supply is restored to the main battery.
After the vehicle-mounted terminal enters the BBLP1 mode, the method further comprises the following steps:
s50, when receiving the triggering operation of the user to the emergency call service and the real-time voltage is not less than a second preset threshold VS2, switching to a BBN mode;
when the real-time voltage is lower than the second preset threshold value, the electric quantity of the standby battery is not enough to support the first power supply for the trigger circuit module of the emergency call service, and the standby battery can supply the second power supply for the trigger circuit module and the communication module of the emergency call service, so that the standby battery is in a state to be awakened. And after the electric quantity of the standby battery is recovered to the state that the real-time voltage is above the second preset threshold value and the triggering operation of the user on the emergency call service is received, the vehicle-mounted terminal can be switched to the BBN mode.
Meanwhile, after the vehicle-mounted terminal enters the BBLP1 mode, if the vehicle-mounted terminal receives a KL30 ON signal indicating that the main battery can normally supply power, the vehicle-mounted terminal can be switched to the MBN mode, that is, the main battery supplies power to the vehicle-mounted terminal.
S60, when the real-time voltage is lower than a fifth preset threshold VS5, the vehicle-mounted terminal is switched to a BBLP2 mode;
after the vehicle-mounted terminal is switched to the BBLP2 mode, the vehicle-mounted terminal is in a sleep mode, all power supply of the standby battery to the communication module and the SOC module is cut off, but the standby battery still maintains the second power supply to the trigger circuit module, so that the standby battery can be rapidly awakened after the main battery is powered back, and all other modules and hardware can be correspondingly awakened.
After the vehicle-mounted terminal enters the BBLP2 mode, if the vehicle-mounted terminal receives a KL30 ON signal indicating that the main battery can normally supply power, the vehicle-mounted terminal can be switched to the MBN mode, namely, the main battery supplies power to the vehicle-mounted terminal.
Although the electric quantity of the backup battery is insufficient when the vehicle-mounted terminal is switched to the BBLP1 mode, the vehicle-mounted terminal stops the first power supply to the working module and only keeps the second power supply to part of the modules after being switched to the BBLP1 mode, at the moment, the current output by the backup battery is reduced, and therefore, although the electric quantity of the backup battery is still reduced, the real-time voltage of the backup battery rises to a certain extent. By experiment, it may be determined that the fifth preset threshold indicating a need to switch from the BBLP1 mode to the BBLP2 mode should be greater than the first preset threshold but less than the second preset threshold.
Based on the technical scheme disclosed by the embodiment of the application, the vehicle-mounted terminal can realize the standby and use of the long-time emergency call service through the standby battery under the condition that the main battery cannot supply power, and the safety guarantee of a user under the emergency condition is improved.
Example two
Corresponding to the above embodiments, the present application provides a power supply conversion method, wherein in this embodiment, the same or similar contents as those in the above embodiments may be referred to the above description, and are not repeated herein. As shown in fig. 3, the power supply conversion method includes:
310. the method comprises the steps that in response to the fact that a main battery of a vehicle does not meet a preset condition, real-time voltage of a standby battery of the vehicle is obtained through a first preset sensor, and the standby battery is used for supplying power to a vehicle-mounted terminal of the vehicle;
320. determining a first candidate working module needing power supply in one or more working modules according to the current working state of the one or more working modules and/or the triggering operation of a user on the one or more working modules, wherein the one or more working modules belong to the vehicle-mounted terminal;
preferably, before determining the second candidate operating module capable of first power supply corresponding to the real-time voltage according to the correspondence between the voltage and the operating module capable of first power supply, the power supply conversion method further includes:
321. acquiring the real-time temperature of the standby battery through a second preset sensor;
322. determining a power supply rule corresponding to the real-time temperature as a target power supply rule according to a corresponding relation between a preset temperature and the power supply rule;
323. and determining the corresponding relation between the voltage and the working module capable of first power supply according to the target power supply rule.
330. Determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the working module which can supply power for the first time at least comprises a trigger circuit module of emergency call service;
preferably, the determining, according to the correspondence between the voltage and the working module capable of first power supply, the second candidate working module capable of first power supply corresponding to the real-time voltage includes:
331. when the real-time voltage is not less than a second preset threshold, determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the second preset threshold is greater than the first preset threshold;
332. and when the real-time voltage is smaller than the second preset threshold value, switching the vehicle-mounted terminal into a monitoring state.
Preferably, when the real-time voltage is not less than a second preset threshold, determining, according to a correspondence between a voltage and a working module capable of first power supply, a second candidate working module capable of first power supply corresponding to the real-time voltage includes:
333. when the real-time voltage is higher than a third preset threshold value, determining that a working module which can supply power for the first time and corresponds to the real-time voltage comprises a trigger circuit module, an SOC module and a communication module of the emergency call service, wherein the third preset threshold value is larger than the second preset threshold value;
334. and when the real-time voltage is not less than the second preset threshold and less than the third preset threshold, determining that the working module capable of supplying power for the first time corresponding to the real-time voltage comprises the trigger circuit module of the emergency call service and the communication module.
340. Determining a target module to be powered according to the first candidate working module needing power supply and the second candidate working module which can supply power first and corresponds to the real-time voltage, and performing first power supply on the target module to be powered through the standby battery so as to enable the target module to be powered to execute corresponding services.
Preferably, the performing, by the backup battery, the first power supply to the target module to be powered so that the target module to be powered executes a corresponding service includes:
341. when the standby battery supplies power to the target module to be powered, if the real-time voltage is smaller than a first preset threshold and/or the target module to be powered completes the execution of corresponding services, the vehicle-mounted terminal is switched to a monitoring state so as to cut off the power supply of the standby battery to the target module to be powered except for the communication module and the trigger circuit module of the emergency call service, and the standby battery supplies power to the communication module and the trigger circuit of the emergency call service so as to enable the communication module and the trigger circuit of the emergency call service to be in a state to be awakened.
Preferably, the performing, by the backup battery, the first power supply to the target module to be powered so that the target module to be powered executes a corresponding service includes:
342. when the standby battery supplies power to the target module to be powered for the first time, if the target module to be powered comprises the SOC module and the real-time voltage is smaller than a fourth preset threshold value, the power supply of the SOC module through the standby battery is cut off, and the fourth preset threshold value is smaller than the third preset threshold value.
Preferably, the power supply conversion method further includes:
350. and when the first candidate working module needing power supply does not exist and the duration time of the first candidate working module needing power supply does not exist exceeds a preset time threshold, switching the vehicle-mounted terminal into a monitoring state.
Preferably, the switching the vehicle-mounted terminal to the monitoring state includes:
351. detecting a real-time state of the main battery;
352. responding to the fact that the real-time voltage of the standby battery is not smaller than a second preset threshold value and the triggering operation of a user on the emergency call service is monitored, and performing first power supply on the target module to be powered through the standby battery;
353. and/or cutting off the power supply of the vehicle-mounted terminal by the backup battery and supplying power to the vehicle-mounted terminal through the main battery in response to the fact that the main battery meets the preset condition.
Preferably, the power supply conversion method further includes:
360. when the target module to be powered does not exist and the real-time voltage does not exceed a fifth preset threshold, the vehicle-mounted terminal is switched to a sleep state so as to wake up the vehicle-mounted terminal when the main battery is detected to meet the preset condition, power is supplied to the one or more working modules of the vehicle-mounted terminal through the main battery, and the fifth preset threshold is smaller than a second preset threshold.
EXAMPLE III
Corresponding to all the above embodiments, the present application provides a power supply conversion apparatus, wherein in this embodiment, the same or similar contents as those in the first embodiment and the second embodiment may refer to the above description, and are not repeated herein. As shown in fig. 4, the power supply conversion apparatus includes:
the acquisition module 410 is used for responding to the fact that the main battery of the vehicle does not meet the preset condition, acquiring the real-time voltage of a standby battery of the vehicle through a first preset sensor, wherein the standby battery is used for supplying power to a vehicle-mounted terminal of the vehicle;
a determining module 420, configured to determine, according to a current working state of one or more working modules and/or a triggering operation of a user on the one or more working modules, a first candidate working module that needs to be powered on among the one or more working modules, where the one or more working modules belong to the vehicle-mounted terminal;
the determining module 420 is further configured to determine, according to a correspondence between a voltage and a working module capable of first power supply, a second candidate working module capable of first power supply corresponding to the real-time voltage, where the working module capable of first power supply at least includes a trigger circuit module for emergency call service;
the control module 430 is configured to determine a target module to be powered according to the first candidate working module requiring power supply and the second candidate working module capable of first power supply corresponding to the real-time voltage, and perform first power supply on the target module to be powered through the backup battery so that the target module to be powered executes corresponding services.
Preferably, the obtaining module 410 is further configured to obtain a real-time temperature of the backup battery through a second preset sensor; determining a power supply rule corresponding to the real-time temperature as a target power supply rule according to a corresponding relation between a preset temperature and the power supply rule; and determining the corresponding relation between the voltage and the working module capable of first power supply according to the target power supply rule.
The control module 430 may be further configured to, when the standby battery supplies power to the target module to be powered first, switch the vehicle-mounted terminal to a monitoring state if the real-time voltage is less than a first preset threshold and/or the target module to be powered completes execution of a corresponding service, so as to cut off power supply of the standby battery to the target module to be powered except for the communication module and the trigger circuit module of the emergency call service, and supply power to the communication module and the trigger circuit of the emergency call service second through the standby battery so that the communication module and the trigger circuit of the emergency call service are in a state to be wakened up.
The control module 430 may further be configured to switch the vehicle-mounted terminal to a monitoring state when the first candidate working module requiring power supply does not exist and the duration of the first candidate working module requiring power supply does not exist exceeds a preset time threshold.
The control module 430 is further configured to determine, when the real-time voltage is not less than a second preset threshold, a second candidate working module capable of first power supply corresponding to the real-time voltage according to a correspondence between the voltage and the working module capable of first power supply, where the second preset threshold is greater than the first preset threshold; and when the real-time voltage is smaller than the second preset threshold value, switching the vehicle-mounted terminal into a monitoring state.
Preferably, the determining module 420 is further configured to determine that the working module capable of first power supply corresponding to the real-time voltage includes a trigger circuit module, an SOC module, and a communication module of the emergency call service when the real-time voltage is higher than a third preset threshold, where the third preset threshold is greater than the second preset threshold; and when the real-time voltage is not less than the second preset threshold and less than the third preset threshold, determining that the working module capable of supplying power for the first time corresponding to the real-time voltage comprises the trigger circuit module of the emergency call service and the communication module.
Preferably, the control module 430 may be further configured to, when the standby battery supplies power to the target module to be powered for the first time, cut off power supply to the SOC module through the standby battery if the target module to be powered includes the SOC module and the real-time voltage is smaller than a fourth preset threshold, where the fourth preset threshold is smaller than the third preset threshold.
Preferably, the control module 430 may also be configured to detect a real-time state of the main battery; responding to the fact that the real-time voltage of the standby battery is not smaller than a second preset threshold value and the triggering operation of a user on the emergency call service is monitored, and performing first power supply on the target module to be powered through the standby battery; and/or cutting off the power supply of the vehicle-mounted terminal by the backup battery and supplying power to the vehicle-mounted terminal through the main battery in response to the fact that the main battery meets the preset condition.
Preferably, the control module 430 may be further configured to, when there is no target module to be powered and the real-time voltage does not exceed a fifth preset threshold, switch the vehicle-mounted terminal to a sleep state so as to wake up the vehicle-mounted terminal when it is detected that the main battery meets the preset condition, and power is supplied to the one or more working modules of the vehicle-mounted terminal through the main battery, where the fifth preset threshold is smaller than a second preset threshold.
Example four
Corresponding to all the above embodiments, an embodiment of the present application provides a vehicle-mounted terminal, including: one or more processors; and memory associated with the one or more processors for storing program instructions that, when read and executed by the one or more processors, perform operations comprising:
the method comprises the steps that in response to the fact that a main battery of a vehicle does not meet a preset condition, real-time voltage of a standby battery of the vehicle is obtained through a first preset sensor, and the standby battery is used for supplying power to a vehicle-mounted terminal of the vehicle;
determining a first candidate working module needing power supply in one or more working modules according to the current working state of the one or more working modules and/or the triggering operation of a user on the one or more working modules, wherein the one or more working modules belong to the vehicle-mounted terminal;
determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the working module which can supply power for the first time at least comprises a trigger circuit module of emergency call service;
determining a target module to be powered according to the first candidate working module needing power supply and the second candidate working module which can supply power first and corresponds to the real-time voltage, and performing first power supply on the target module to be powered through the standby battery so as to enable the target module to be powered to execute corresponding services.
Fig. 5 illustrates an architecture of a vehicle terminal, which may include a processor 1510, a video display adapter 1511, a disk drive 1512, an input/output interface 1513, a network interface 1514, and a memory 1520. The processor 1510, video display adapter 1511, disk drive 1512, input/output interface 1513, network interface 1514, and memory 1520 may be communicatively coupled via bus 1530.
The processor 1510 may be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits, and is configured to execute related programs to implement the technical solution provided by the present Application.
The Memory 1520 may be implemented in the form of a ROM (Read Only Memory), a RAM (Random Access Memory), a static storage device, a dynamic storage device, or the like. The memory 1520 may store an operating system 1521 for controlling the operation of the in-vehicle terminal, and a Basic Input Output System (BIOS)1522 for controlling low-level operations of the in-vehicle terminal. In addition, a web browser 1523, a data storage management system 1524, an icon font processing system 1525, and the like can also be stored. The icon font processing system 1525 may be an application program that implements the operations of the foregoing steps in this embodiment of the application. In summary, when the technical solution provided by the present application is implemented by software or firmware, the relevant program codes are stored in the memory 1520 and called for execution by the processor 1510. The input/output interface 1513 is used for connecting an input/output module to realize information input and output. The i/o module may be configured as a component in a device (not shown) or may be external to the device to provide a corresponding function. The input devices may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output devices may include a display, a speaker, a vibrator, an indicator light, etc.
The network interface 1514 is used to connect a communication module (not shown) to enable the device to communicatively interact with other devices. The communication module can realize communication in a wired mode (such as USB, network cable and the like) and also can realize communication in a wireless mode (such as mobile network, WIFI, Bluetooth and the like).
The bus 1530 includes a path to transfer information between the various components of the device, such as the processor 1510, the video display adapter 1511, the disk drive 1512, the input/output interface 1513, the network interface 1514, and the memory 1520.
In addition, the in-vehicle terminal may also obtain information of specific pickup conditions from the virtual resource object pickup condition information database for performing condition judgment, and the like.
It should be noted that although the above devices only show the processor 1510, the video display adapter 1511, the disk drive 1512, the input/output interface 1513, the network interface 1514, the memory 1520, the bus 1530, etc., in a specific implementation, the devices may also include other components necessary for proper operation. Furthermore, it will be understood by those skilled in the art that the apparatus described above may also include only the components necessary to implement the solution of the present application, and not necessarily all of the components shown in the figures.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, or the like, and includes several instructions for enabling a computer device (which may be a personal computer, a cloud server, or a network device) to execute the method according to the embodiments or some parts of the embodiments of the present application.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (9)

1. A power supply conversion method, characterized by comprising:
the method comprises the steps that in response to the fact that a main battery of a vehicle does not meet a preset condition, real-time voltage of a standby battery of the vehicle is obtained through a first preset sensor, and the standby battery is used for supplying power to a vehicle-mounted terminal of the vehicle;
determining a first candidate working module needing power supply in one or more working modules according to the current working state of the one or more working modules and/or the triggering operation of a user on the one or more working modules, wherein the one or more working modules belong to the vehicle-mounted terminal;
determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the working module which can supply power for the first time at least comprises a trigger circuit module of emergency call service;
determining a target module to be powered according to the first candidate working module which needs to be powered and the second candidate working module which can be powered firstly and corresponds to the real-time voltage, and carrying out first power supply on the target module to be powered through the standby battery so as to enable the target module to be powered to execute corresponding services,
the first power supply to the target module to be powered through the standby battery so as to enable the target module to be powered to execute corresponding services comprises the following steps:
when the standby battery supplies power to the target module to be powered, if the real-time voltage is smaller than a first preset threshold and/or the target module to be powered completes the execution of corresponding services, the vehicle-mounted terminal is switched to a monitoring state so as to cut off the power supply of the standby battery to the target module to be powered except for the communication module and the trigger circuit module of the emergency call service, and the standby battery supplies power to the communication module and the trigger circuit of the emergency call service so as to enable the communication module and the trigger circuit of the emergency call service to be in a state to be awakened.
2. The power supply conversion method according to claim 1, wherein before determining the second candidate operating module capable of first power supply corresponding to the real-time voltage according to the correspondence between the voltage and the operating module capable of first power supply, the power supply conversion method further comprises:
acquiring the real-time temperature of the standby battery through a second preset sensor;
determining a power supply rule corresponding to the real-time temperature as a target power supply rule according to a corresponding relation between a preset temperature and the power supply rule;
and determining the corresponding relation between the voltage and the working module capable of first power supply according to the target power supply rule.
3. The power supply conversion method according to claim 1, characterized by further comprising:
and when the first candidate working module needing power supply does not exist and the duration time of the first candidate working module needing power supply does not exist exceeds a preset time threshold, switching the vehicle-mounted terminal into a monitoring state.
4. The power supply conversion method according to claim 1, wherein the determining, according to the correspondence between the voltage and the first power supply available working module, the second candidate working module available for the first power supply corresponding to the real-time voltage comprises:
when the real-time voltage is not less than a second preset threshold, determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the second preset threshold is greater than the first preset threshold;
and when the real-time voltage is smaller than the second preset threshold value, switching the vehicle-mounted terminal into a monitoring state.
5. The power supply conversion method according to claim 4, wherein when the real-time voltage is not less than a second preset threshold, determining a second candidate operating module capable of first power supply corresponding to the real-time voltage according to a correspondence between the voltage and the operating module capable of first power supply comprises:
when the real-time voltage is higher than a third preset threshold value, determining that a second candidate working module which corresponds to the real-time voltage and can supply power for the first candidate working module comprises a trigger circuit module, an SOC module and a communication module of the emergency call service, wherein the third preset threshold value is larger than the second preset threshold value;
and when the real-time voltage is not less than the second preset threshold and not more than the third preset threshold, determining that the second candidate working module capable of first power supply corresponding to the real-time voltage comprises the trigger circuit module of the emergency call service and the communication module.
6. The power supply conversion method according to claim 5, wherein the first power supply to the target module to be powered by the backup battery to enable the target module to be powered to perform a corresponding service comprises:
when the standby battery supplies power to the target module to be powered for the first time, if the target module to be powered comprises the SOC module and the real-time voltage is smaller than a fourth preset threshold value, the power supply of the SOC module through the standby battery is cut off, and the fourth preset threshold value is smaller than the third preset threshold value.
7. The power supply conversion method according to any one of claims 3 to 6, wherein the switching the in-vehicle terminal into the monitoring state includes:
detecting a real-time state of the main battery;
responding to the fact that the real-time voltage of the standby battery is not smaller than a second preset threshold value and the triggering operation of a user on the emergency call service is monitored, and performing first power supply on the target module to be powered through the standby battery;
and/or cutting off the power supply of the vehicle-mounted terminal by the backup battery and supplying power to the vehicle-mounted terminal through the main battery in response to the fact that the main battery meets the preset condition.
8. The power supply conversion method according to claim 1 or 2, characterized by further comprising:
when the target module to be powered does not exist and the real-time voltage does not exceed a fifth preset threshold, the vehicle-mounted terminal is switched to a sleep state so as to wake up the vehicle-mounted terminal when the main battery is detected to meet the preset condition, power is supplied to the one or more working modules of the vehicle-mounted terminal through the main battery, and the fifth preset threshold is smaller than a second preset threshold.
9. A power supply conversion apparatus, characterized by comprising:
the acquisition module is used for responding to the fact that a main battery of a vehicle does not meet a preset condition, acquiring the real-time voltage of a standby battery of the vehicle through a first preset sensor, wherein the standby battery is used for supplying power to a vehicle-mounted terminal of the vehicle;
the judging module is used for determining a first candidate working module which needs to supply power in the one or more working modules according to the current working state of the one or more working modules and/or the triggering operation of a user on the one or more working modules, and the one or more working modules belong to the vehicle-mounted terminal;
the judging module is further used for determining a second candidate working module which can supply power for the first time and corresponds to the real-time voltage according to the corresponding relation between the voltage and the working module which can supply power for the first time, wherein the working module which can supply power for the first time at least comprises a trigger circuit module of emergency call service;
the control module is used for determining a target module to be powered according to the first candidate working module which needs to be powered and the second candidate working module which can be powered firstly and corresponds to the real-time voltage, and carrying out first power supply on the target module to be powered through the standby battery so as to enable the target module to be powered to execute corresponding services,
the control module is further configured to switch the vehicle-mounted terminal to a monitoring state when the standby battery supplies power to the target module to be powered first and if the real-time voltage is smaller than a first preset threshold and/or the target module to be powered completes execution of a corresponding service, so as to cut off power supply of the standby battery to the target module to be powered except for the communication module and the trigger circuit module of the emergency call service and supply power to the communication module and the trigger circuit of the emergency call service second through the standby battery so that the communication module and the trigger circuit of the emergency call service are in a state to be awakened.
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CN114851990A (en) * 2022-05-25 2022-08-05 中国第一汽车股份有限公司 Multifunctional vehicle compatible system, method and device and storage medium
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