CN113270923A - Wireless charging safety monitoring method and system - Google Patents

Wireless charging safety monitoring method and system Download PDF

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Publication number
CN113270923A
CN113270923A CN202110648830.5A CN202110648830A CN113270923A CN 113270923 A CN113270923 A CN 113270923A CN 202110648830 A CN202110648830 A CN 202110648830A CN 113270923 A CN113270923 A CN 113270923A
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charging
battery
period
rated
current
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朱长仙
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Shenzhen Zhigaoxiang Technology Development Co ltd
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Shenzhen Zhigaoxiang Technology Development Co ltd
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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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a wireless charging safety monitoring method and a wireless charging safety monitoring system, which are applied to the technical field of wireless charging, and are used for acquiring a charging request of a battery to be charged, wherein the charging request comprises a battery state parameter; determining at least one charging strategy according to the charging request; monitoring by updating battery state parameters in the charging process, and comparing with a preset threshold value; if the current charge state is not within the range of the preset threshold value, the charging strategy is corrected; and if the voltage is within the range of the preset threshold value, disconnecting the battery until the charging is finished. According to the wireless charging safety monitoring method and system, the charging strategy is continuously updated according to the residual electric quantity of the battery in the charging process through the preset charging strategy, the charging in the preset charging strategy is ensured to be in a safe state, and the situations of overlarge current and voltage and the like are avoided.

Description

Wireless charging safety monitoring method and system
Technical Field
The invention relates to the technical field of wireless charging, in particular to a wireless charging safety monitoring method and system.
Background
Along with the development of science and technology, especially along with the appearance of electric automobile, charge for electric automobile and mainly adopt the interface rigid connection that charges with the interface that charges of car, the plug probably causes the life-span reduction of charging cable, then begins to develop wireless charging technology.
Wireless charging technology is derived from wireless power transmission technology, in which high-power wireless charging usually adopts a resonance mode (the mode is adopted by most electric vehicles) and energy is transmitted from a power supply device (charger) to a power-using device, and the device charges a battery by using the received energy and simultaneously provides the power-using device for self operation.
However, the existing resonant charging device may cause a great reduction in the service life of the battery due to inaccurate control of battery charging, or even cause a fire, which brings a danger to the life and property safety of users.
Therefore, it is an urgent need to solve the problem of the art to provide a wireless charging safety monitoring method and system capable of accurately controlling the charging process.
Disclosure of Invention
In view of this, the present invention provides a wireless charging safety monitoring method and system, which continuously updates a charging policy according to a remaining battery power in a charging process through a preset charging policy, so as to ensure that charging in the preset charging policy is in a safe state, and the situations of excessive current and voltage do not occur.
In order to achieve the above purpose, the invention provides the following technical scheme:
the wireless charging safety monitoring method comprises the following specific steps:
acquiring a charging request of a battery to be charged, wherein the charging request comprises battery state parameters;
determining at least one charging strategy according to the charging request;
monitoring by updating battery state parameters in the charging process, and comparing with a preset threshold value;
if the current charge state is not within the range of the preset threshold value, the charging strategy is corrected; and if the voltage is within the range of the preset threshold value, disconnecting the battery until the charging is finished.
Preferably, in the above wireless charging safety monitoring method, the battery state parameters at least include: the residual battery capacity, the rated charging voltage, the rated charging current, the charging period and the buffering period.
Preferably, in the above wireless charging safety monitoring method, the charging policy is determined according to the battery state parameter; the method comprises the following steps:
the residual electric quantity of the battery is lower than 20%, the charging voltage is controlled to be equal to the rated charging voltage, the charging current is controlled to be equal to 0.6 time of the rated charging current, and the charging period is m1Minute, buffer period n in each charging period1Second;
the residual electric quantity of the battery is 20-60%, the charging voltage is controlled to be equal to the rated charging voltage, the charging current is controlled to be equal to 0.6-0.8 times of the rated charging current, and the charging period is m2Minute, buffer period n in each charging period2Second;
the residual electric quantity of the battery is 60-90%, the charging voltage is controlled to be equal to the rated charging current, the charging current is controlled to be equal to the rated charging current, and the charging period is m3Minute, buffer period n in each charging period3Second;
the residual electric quantity of the battery is more than 90 percent, the charging voltage is 0.95 times of rated charging voltage, the charging current is 0.3 times of rated charging current, and the charging period is m4Minute, buffer period n in each charging period4And second.
Preferably, in the above wireless charging safety monitoring method, the specific steps of updating the battery state parameter parameters to monitor in the charging process are as follows:
acquiring initial residual battery capacity;
selecting a first charging strategy, and performing charging operation according to the selected first charging strategy;
after the fixed period is finished, the residual electric quantity of the battery is updated;
and updating the first charging strategy according to the updated current battery residual capacity to obtain a second charging strategy until charging is completed.
Preferably, in the above wireless charging safety monitoring method, after the fixed period is completed, the remaining battery power is updated to determine whether the remaining battery power is in the same range as the initial remaining battery power, if so, the first charging policy is continuously maintained, and if not, the second charging policy is updated.
Wireless safety monitoring system that charges includes:
the device comprises an acquisition module, a charging module and a charging module, wherein the acquisition module is used for acquiring a charging request of a battery to be charged, and the charging request comprises battery state parameters;
the strategy generation module is used for determining at least one charging strategy according to the charging request;
the updating module monitors the battery state parameters updated in the charging process and compares the battery state parameters with a preset threshold value;
the judging module is used for correcting the charging strategy if the charging strategy is not in the range of the preset threshold value; and if the voltage is within the range of the preset threshold value, disconnecting the battery until the charging is finished.
Preferably, in the above wireless charging safety monitoring system, the obtaining module includes a battery remaining capacity unit for obtaining a current battery remaining capacity;
the rated charging voltage unit is used for acquiring the rated charging voltage of the battery;
the rated charging current unit is used for acquiring rated charging current of the battery;
the charging cycle unit is used for acquiring a charging cycle;
and the buffer period unit is used for acquiring a buffer period.
Preferably, in the above wireless charging safety monitoring system, the policy generation module includes:
the first strategy unit controls the charging voltage to be equal to the rated charging voltage and the charging current to be equal to 0.6 time of the rated charging current, wherein the residual capacity of the battery is lower than 20 percent, and the charging period is m1Minute, buffer period n in each charging period1Second;
the second strategy unit controls the charging voltage to be equal to the rated charging voltage and the charging current to be equal to 0.6-0.8 times of the rated charging current, wherein the charging period is m2Minute, buffer period n in each charging period2Second;
the third strategy unit is that the residual battery capacity is 60-90 percent, and the charging voltage is controlled to be equal to the rated chargingCurrent, charging current equal to the rated charging current, and charging period of m3Minute, buffer period n in each charging period3Second;
the fourth strategy unit has the residual capacity of the battery larger than 90 percent, the charging voltage of 0.95 times of rated charging voltage, the charging current of 0.3 times of rated charging current, and the charging period of m4Minute, buffer period n in each charging period4And second.
Preferably, in the above wireless charging safety monitoring system, the update module:
the second battery residual capacity unit updates the battery residual capacity after the fixed period is finished;
and the strategy updating unit updates the first charging strategy according to the updated current battery residual capacity to obtain a second charging strategy until charging is completed.
Preferably, in the above wireless charging safety monitoring system, the wireless charging safety monitoring system further includes a comparing unit, which updates the remaining battery capacity to determine whether the remaining battery capacity is in the same range as the initial remaining battery capacity, if so, the first charging policy is continuously maintained, and if not, the first charging policy is updated to the second charging policy.
According to the technical scheme, compared with the prior art, the wireless charging safety monitoring method and system provided by the invention have the advantages that the charging strategy is continuously updated according to the residual electric quantity of the battery in the charging process through the preset charging strategy, the charging in the preset charging strategy is ensured to be in a safe state, and the situations of overlarge current and voltage and the like are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a wireless charging security monitoring method according to the present invention;
FIG. 2 is a flow chart illustrating a method for updating a charging strategy according to the present invention;
fig. 3 is a block diagram of a wireless charging safety monitoring system according to the present invention;
fig. 4 is a block diagram of a wireless charging safety monitoring device according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
It can be known from the background art that the control in the charging process in the prior art is not accurate enough, the situations of overvoltage and overcurrent charging are easy to occur, the service life of the battery is influenced, and the use safety of a user can be caused.
Based on this, the embodiment of the invention discloses a wireless charging safety monitoring method, which is applied to the field of wireless charging safety monitoring, and as shown in fig. 1, the method specifically comprises the following steps:
s101, a charging request of a battery to be charged is obtained, wherein the charging request comprises battery state parameters;
s102, determining at least one charging strategy according to the charging request;
s103, monitoring by updating battery state parameters in the charging process, and comparing with a preset threshold value;
s104, if the charge state is not within the range of the preset threshold value, the charging strategy is corrected; and if the voltage is within the range of the preset threshold value, disconnecting the battery until the charging is finished.
It can be understood that the charging strategy is modified by continuously updating the battery state parameters, so that the battery can be charged within a safe range under the condition of stable current and voltage, the charging speed is ensured, and the charging safety is ensured.
In step S101, the battery state parameters at least include: the residual battery capacity, the rated charging voltage, the rated charging current, the charging period and the buffering period.
The residual electric quantity of the battery is measured, an electric quantity metering chip is connected in series on a protection circuit of the battery, an integrated sampling resistor is connected in series, the current flowing through a loop in unit time is tested through the resistor, if the current changes along with time, different pressure differences are generated after different currents flow, the changed current is integrated, namely the current is accumulated in the period of time, the distance and the like, and finally the correct electric quantity when the user uses the electric quantity metering chip is obtained.
Further, the rated charging voltage and the rated charging current can be determined by the rated voltage and the rated current recorded on the battery nameplate.
Further, the charging period and the buffering period are optimized based on the simulation of the battery charging process, or by establishing a mathematical model of the battery charging.
It should be appreciated that the buffer period is much smaller than the charge period and is not charged during the buffer period.
In step S102, a charging strategy is determined according to the battery state parameters; the method comprises the following steps:
the residual electric quantity of the battery is lower than 20 percent, the charging voltage is controlled to be equal to the rated charging voltage, the charging current is equal to 0.6 time of the rated charging current, and the charging period is m1Minute, buffer period n in each charging period1Second;
the residual electric quantity of the battery is 20-60%, the charging voltage is controlled to be equal to the rated charging voltage, the charging current is equal to 0.6-0.8 times of the rated charging current, and the charging period is m2Minute, buffer period n in each charging period2Second;
the residual electric quantity of the battery is 60-90%, the charging voltage is controlled to be equal to the rated charging current, the charging current is equal to the rated charging current, and the charging period is m3Minute, buffer period n in each charging period3Second;
battery with a battery cellThe residual capacity is more than 90%, the charging voltage is 0.95 times of rated charging voltage, the charging current is 0.3 times of rated charging current, and the charging period is m4Minute, buffer period n in each charging period4And second.
Specifically, the determination of the charging strategies is based on a simulated battery charging process to obtain an optimal charging period and a buffer period, or by establishing a battery charging mathematical model.
In step S103, as shown in fig. 2, the specific steps of updating the battery state parameter parameters and monitoring in the charging process are as follows:
s1031, obtaining initial battery residual capacity;
s1032, selecting a first charging strategy, and performing charging operation according to the selected first charging strategy;
s1033, after the fixed period is finished, the residual electric quantity of the battery is updated;
s1034, the first charging strategy is updated according to the updated current battery residual capacity to obtain a second charging strategy until charging is completed.
Specifically, when the initial remaining battery capacity is less than 20%, the charging strategy is determined as follows: controlling the charging voltage to be equal to the rated charging voltage, the charging current to be equal to 0.6 times of the rated charging current, and the charging period to be m1Minute, buffer period n in each charging period1And second, after 10 charging cycles, judging the current residual capacity of the battery, and if the residual capacity of the battery is 21%, updating a first charging strategy as follows: the residual electric quantity of the battery is 20-60%, the charging voltage is controlled to be equal to the rated charging voltage, the charging current is equal to 0.6-0.8 times of the rated charging current, and the charging period is m2Minute, buffer period n in each charging period2And e, repeating the steps until the residual capacity of the battery is 100 percent.
Or, if the current remaining battery capacity is still less than 20%, continuing to charge by adopting the first charging strategy.
Further, after the fixed period is finished, the residual battery capacity is updated to judge whether the residual battery capacity is in the same range as the initial residual battery capacity, if so, the first charging strategy is continuously kept, and if not, the residual battery capacity is updated to be the second charging strategy.
In the following, the wireless charging safety monitoring system provided by the embodiment of the present invention is introduced, and the wireless charging safety monitoring system described below may be considered as a functional module that is required to be configured by the wireless charging safety monitoring system to implement the wireless charging safety monitoring method provided by the embodiment of the present invention, and the content of the wireless charging safety monitoring system described below may be referred to in correspondence with the content of the wireless charging safety monitoring method described above.
As an alternative, as shown in fig. 3, the wireless charging safety monitoring system includes:
the acquisition module is used for acquiring a charging request of a battery to be charged, wherein the charging request comprises battery state parameters;
the strategy generation module determines at least one charging strategy according to the charging request;
the updating module monitors the battery state parameters updated in the charging process and compares the battery state parameters with a preset threshold value;
the judging module is used for correcting the charging strategy if the charging strategy is not in the range of the preset threshold value; and if the voltage is within the range of the preset threshold value, disconnecting the battery until the charging is finished.
Further, the acquisition module comprises a battery residual capacity unit for acquiring the current battery residual capacity;
the rated charging voltage unit is used for acquiring the rated charging voltage of the battery;
the rated charging current unit is used for acquiring rated charging current of the battery;
a charging cycle unit for acquiring a charging cycle;
and the buffer period unit is used for acquiring the buffer period.
In order to further optimize the above technical solution, the policy generation module includes:
the first strategy unit controls the charging voltage to be equal to the rated charging voltage and the charging current to be equal to 0.6 times of the rated charging current, wherein the residual capacity of the battery is lower than 20 percent, and the charging period is m1Minute, buffer period n in each charging period1Second;
second policy sheetThe residual electric quantity of the battery is 20-60%, the charging voltage is controlled to be equal to the rated charging voltage, the charging current is equal to 0.6-0.8 times of the rated charging current, and the charging period is m2Minute, buffer period n in each charging period2Second;
the third strategy unit is that the residual battery capacity is 60-90%, the charging voltage is controlled to be equal to the rated charging current, the charging current is equal to the rated charging current, and the charging period is m3Minute, buffer period n in each charging period3Second;
the fourth strategy unit has the residual capacity of the battery larger than 90 percent, the charging voltage of 0.95 times of rated charging voltage, the charging current of 0.3 times of rated charging current and the charging period of m4Minute, buffer period n in each charging period4And second.
In order to further optimize the above technical solution, the update module:
the second battery residual capacity unit updates the battery residual capacity after the fixed period is finished;
and the strategy updating unit updates the first charging strategy according to the updated current battery residual capacity to obtain a second charging strategy until charging is completed.
In order to further optimize the technical scheme, the charging system further comprises a comparison unit, wherein the comparison unit is used for updating the residual battery capacity to judge whether the residual battery capacity is in the same range as the initial residual battery capacity, if so, the first charging strategy is continuously kept, and if not, the first charging strategy is updated to be the second charging strategy.
The embodiment of the invention also provides wireless charging safety monitoring equipment, and the wireless charging safety monitoring equipment can realize the wireless charging safety monitoring method provided by the embodiment of the invention by loading the wireless charging safety monitoring system. Optionally, an optional hardware structure of the wireless charging safety monitoring device may be as shown in fig. 4, where fig. 4 is a structural diagram of a wireless charging safety monitoring device provided in an embodiment of the present invention, and includes: at least one processor 01, at least one communication interface 02, at least one memory 03 and at least one communication bus 04;
in the embodiment of the present invention, the processor 01, the communication interface 02, and the memory 03 complete mutual communication through the communication bus 04;
processor 01 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement an embodiment of the invention.
The memory 03 may comprise a high-speed RAM memory and may further comprise a non-volatile memory, such as at least one disk memory.
The memory 03 stores a program, and the processor 01 calls the program stored in the memory 03 to execute the wireless charging safety monitoring method provided by the embodiment of the invention.
The embodiment of the invention also provides a storage medium which can store and execute the wireless charging safety monitoring method provided by the embodiment of the invention.
Optionally, the program may be specifically configured to:
s101, a charging request of a battery to be charged is obtained, wherein the charging request comprises battery state parameters;
s102, determining at least one charging strategy according to the charging request;
s103, monitoring by updating battery state parameters in the charging process, and comparing with a preset threshold value;
s104, if the charge state is not within the range of the preset threshold value, the charging strategy is corrected; and if the voltage is within the range of the preset threshold value, disconnecting the battery until the charging is finished.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The wireless charging safety monitoring method is characterized by comprising the following specific steps:
acquiring a charging request of a battery to be charged, wherein the charging request comprises battery state parameters;
determining at least one charging strategy according to the charging request;
monitoring by updating battery state parameters in the charging process, and comparing with a preset threshold value;
if the current charge state is not within the range of the preset threshold value, the charging strategy is corrected; and if the voltage is within the range of the preset threshold value, disconnecting the battery until the charging is finished.
2. The wireless charging safety monitoring method according to claim 1, wherein the battery state parameters at least include: the residual battery capacity, the rated charging voltage, the rated charging current, the charging period and the buffering period.
3. The wireless charging security monitoring method of claim 2, wherein the charging policy is determined according to the battery status parameter; the method comprises the following steps:
the residual electric quantity of the battery is lower than 20%, the charging voltage is controlled to be equal to the rated charging voltage, the charging current is controlled to be equal to 0.6 time of the rated charging current, and the charging period is m1Minute, buffer period n in each charging period1Second;
the residual electric quantity of the battery is 20-60%, the charging voltage is controlled to be equal to the rated charging voltage, the charging current is controlled to be equal to 0.6-0.8 times of the rated charging current, and the charging period is m2Minute, buffer period n in each charging period2Second;
the residual electric quantity of the battery is 60-90%, the charging voltage is controlled to be equal to the rated charging current, the charging current is controlled to be equal to the rated charging current, and the charging period is m3Minute, buffer period n in each charging period3Second;
the residual electric quantity of the battery is more than 90 percent, the charging voltage is 0.95 times of rated charging voltage, the charging current is 0.3 times of rated charging current, and the charging period is m4Minute, buffer period n in each charging period4And second.
4. The wireless charging safety monitoring method according to claim 1, wherein the specific steps of updating the battery state parameter parameters and monitoring in the charging process are as follows:
acquiring initial residual battery capacity;
selecting a first charging strategy, and performing charging operation according to the selected first charging strategy;
after the fixed period is finished, the residual electric quantity of the battery is updated;
and updating the first charging strategy according to the updated current battery residual capacity to obtain a second charging strategy until charging is completed.
5. The wireless charging security monitoring method of claim 4, wherein after the fixed period is completed, the remaining battery power is updated to determine whether the remaining battery power is in the same range as the initial remaining battery power, if so, the first charging policy is continuously maintained, and if not, the second charging policy is updated.
6. Wireless safety monitoring system that charges, its characterized in that includes:
the device comprises an acquisition module, a charging module and a charging module, wherein the acquisition module is used for acquiring a charging request of a battery to be charged, and the charging request comprises battery state parameters;
the strategy generation module is used for determining at least one charging strategy according to the charging request;
the updating module monitors the battery state parameters updated in the charging process and compares the battery state parameters with a preset threshold value;
the judging module is used for correcting the charging strategy if the charging strategy is not in the range of the preset threshold value; and if the voltage is within the range of the preset threshold value, disconnecting the battery until the charging is finished.
7. The wireless charging safety monitoring system according to claim 6, wherein the obtaining module comprises: the battery residual capacity unit is used for acquiring the current battery residual capacity;
the rated charging voltage unit is used for acquiring the rated charging voltage of the battery;
the rated charging current unit is used for acquiring rated charging current of the battery;
a charging cycle unit for acquiring a charging cycle;
and the buffer period unit is used for acquiring the buffer period.
8. The wireless charging security monitoring system of claim 7, wherein the policy generation module comprises:
the first strategy unit controls the charging voltage to be equal to the rated charging voltage and the charging current to be equal to 0.6 time of the rated charging current, wherein the residual capacity of the battery is lower than 20 percent, and the charging period is m1Minute, buffer period n in each charging period1Second;
the second strategy unit controls the charging voltage to be equal to the rated charging voltage and the charging current to be equal to 0.6-0.8 times of the rated charging current, wherein the charging period is m2Minute, buffer period n in each charging period2Second;
the third strategy unit is used for controlling the residual battery capacity to be 60-90%, the charging voltage to be equal to the rated charging current, the charging current to be equal to the rated charging current, and the charging period to be m3Minute, buffer period n in each charging period3Second;
the fourth strategy unit has the residual capacity of the battery larger than 90 percent, the charging voltage of 0.95 times of rated charging voltage, the charging current of 0.3 times of rated charging current, and the charging period ism4Minute, buffer period n in each charging period4And second.
9. The wireless charging safety monitoring system of claim 6, wherein the update module:
the second battery residual capacity unit updates the battery residual capacity after the fixed period is finished;
and the strategy updating unit updates the first charging strategy according to the updated current battery residual capacity to obtain a second charging strategy until charging is completed.
10. The wireless charging security monitoring system of claim 9, further comprising a comparing unit for updating the remaining battery capacity to determine whether the remaining battery capacity is in the same range as the initial remaining battery capacity, if so, continuing to maintain the first charging policy, and if not, updating to the second charging policy.
CN202110648830.5A 2021-06-10 2021-06-10 Wireless charging safety monitoring method and system Withdrawn CN113270923A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117479075A (en) * 2023-12-27 2024-01-30 山西尊特智能科技有限公司 Bluetooth headset wireless charging method and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117479075A (en) * 2023-12-27 2024-01-30 山西尊特智能科技有限公司 Bluetooth headset wireless charging method and system
CN117479075B (en) * 2023-12-27 2024-03-19 山西尊特智能科技有限公司 Bluetooth headset wireless charging method and system

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Application publication date: 20210817