CN111711242A - Electric quantity detection method, electronic equipment and charging method - Google Patents
Electric quantity detection method, electronic equipment and charging method Download PDFInfo
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- CN111711242A CN111711242A CN202010601421.5A CN202010601421A CN111711242A CN 111711242 A CN111711242 A CN 111711242A CN 202010601421 A CN202010601421 A CN 202010601421A CN 111711242 A CN111711242 A CN 111711242A
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- charging
- main controller
- charging chip
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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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
- H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses an electric quantity detection method, which is used for measuring the electric quantity of electronic equipment, wherein the electronic equipment comprises a main controller and a charging chip, and an enabling pin, an input end and an output end of the charging chip are sequentially connected with a first input/output interface, a second input/output interface and an analog-to-digital conversion port of the main controller; the method comprises the following steps: when an external power supply is inserted, the main controller receives a charging notice sent by the charging chip and enters a charging mode; the main controller controls the charging chip to start a charging mode; after the charging is carried out for the first preset time, the charging chip is controlled to stop charging through the first input/output interface; after the charging is stopped for a second preset time, the main controller detects the voltage of the first output end of the charging chip through the analog-to-digital conversion port; and determining the current electric quantity of the electronic equipment according to the voltage of the first output end. According to the invention, through ADC detection and software logic algorithm processing, the technical problems of high cost and poor accuracy in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to an electric quantity detection method, electronic equipment and a charging method.
Background
At present, lithium batteries are basically used in electronic equipment such as intelligent recording pens, early education machines and the like, but the mode of counting electric quantity basically adopts a coulometer or a common ADC detection mode. However, the coulometer method is expensive, the software debugging period is long, and the single ADC detection method has poor accuracy.
Disclosure of Invention
An embodiment of the present invention provides an electric quantity detection method, an electronic device, and a charging method, which are used to solve at least one of the above technical problems.
In a first aspect, an embodiment of the present invention provides an electric quantity detection method, configured to measure an electric quantity of an electronic device, where the electronic device includes a main controller and a charging chip, an enable pin of the charging chip is connected to a first input/output interface of the main controller, an input end of the charging chip is connected to a second input/output port of the main controller, and an output end of the charging chip is connected to an analog-to-digital conversion port of the main controller;
the method comprises the following steps:
when an external power supply is plugged in, the main controller receives a charging notification sent by the charging chip through an output end, and the main controller enters a charging mode;
the main controller controls the charging chip to start a charging mode through the first input/output interface;
after charging for a first preset time, the main controller controls the charging chip to stop charging through the first input/output interface;
after the charging is stopped for a second preset time, the main controller detects the voltage of the first output end of the charging chip through the analog-to-digital conversion port;
and determining the current electric quantity of the electronic equipment according to the first output end voltage.
In a second aspect, an embodiment of the present invention provides an electronic device, including a main controller and a charging chip, where an enable pin of the charging chip is connected to a first input/output interface of the main controller, an input end of the charging chip is connected to a second input/output port of the main controller, and an output end of the charging chip is connected to an analog-to-digital conversion port of the main controller;
the master controller is configured to:
when an external power supply is plugged in, the main controller receives a charging notification sent by the charging chip through an output end, and the main controller enters a charging mode;
the main controller controls the charging chip to start a charging mode through the first input/output interface;
after charging for a first preset time, the main controller controls the charging chip to stop charging through the first input/output interface;
after the charging is stopped for a second preset time, the main controller detects the voltage of the first output end of the charging chip through the analog-to-digital conversion port;
and determining the current electric quantity of the electronic equipment according to the first output end voltage.
In a third aspect, an embodiment of the present invention provides a charging method, configured to charge an electronic device, where the electronic device includes a main controller and a charging chip, an enable pin of the charging chip is connected to a first input/output interface of the main controller, an input end of the charging chip is connected to a second input/output port of the main controller, and an output end of the charging chip is connected to an analog-to-digital conversion port of the main controller;
the method comprises the following steps:
s10, when an external power supply is inserted, the main controller receives a charging notification sent by the charging chip through an output end, and the main controller enters a charging mode;
s20, the main controller controls the charging chip to start a charging mode through the first input/output interface;
s30, after charging for a first preset time, the main controller controls the charging chip to stop charging through the first input/output interface;
s40, when the charging is stopped for a second preset time, the main controller detects the voltage of the first output end of the charging chip through the analog-to-digital conversion port;
s50, determining the current electric quantity of the electronic equipment according to the first output end voltage;
s60, when the current electric quantity of the electronic equipment is lower than a preset electric quantity threshold value, jumping to the step S20, and otherwise, ending the charging.
In a fourth aspect, an embodiment of the present invention provides a storage medium, where one or more programs including execution instructions are stored, where the execution instructions can be read and executed by an electronic device (including but not limited to a computer, a server, or a network device, etc.) to perform any one of the above power detection method and/or the charging method of the present invention.
In a fifth aspect, an electronic device is provided, comprising: the power detection device comprises at least one processor and a memory which is connected with the at least one processor in a communication mode, wherein the memory stores instructions which can be executed by the at least one processor, and the instructions are executed by the at least one processor so as to enable the at least one processor to execute any one of the power detection method and/or the charging method.
In a sixth aspect, the present invention further provides a computer program product, where the computer program product includes a computer program stored on a storage medium, and the computer program includes program instructions, and when the program instructions are executed by a computer, the computer is caused to execute any one of the above-mentioned electricity quantity detection method and/or charging method.
The embodiment of the invention has the beneficial effects that: through ADC detection and software logic algorithm processing, the technical problems of high cost and poor accuracy in the prior art are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 some embodiments of the present invention, 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 flowchart of an embodiment of a power detection method according to the present invention;
fig. 2 is a flowchart of a charging method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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 should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiment of the invention provides an electric quantity detection method which can be used for detecting the electric quantity of electronic equipment (such as a touch and talk pen, a recording pen, an intelligent sound box and the like).
The electronic device comprises a main controller and a charging chip, wherein an enabling pin of the charging chip is connected with a first input/output interface of the main controller, an input end of the charging chip is connected with a second input/output port of the main controller, and an output end of the charging chip is connected with an analog-to-digital conversion port of the main controller.
Illustratively, a common charging chip without a coulometer and with an enabling function is used, and an enabling pin of the charging chip is communicated with a GPIO1 port of the main control MCU; communicating the input end of the charging chip with a GPIO2 port of the master control MCU; and communicating the output end of the charging chip with an ADC pin of the master control MCU.
As shown in fig. 1, a flowchart of an embodiment of a power detection method according to the present invention is shown, and the method of the embodiment includes the following steps:
s11, when an external power supply is inserted, the main controller receives a charging notification sent by the charging chip through an output end, and the main controller enters a charging mode;
s12, the main controller controls the charging chip to start a charging mode through the first input/output interface;
s13, after charging for a first preset time, the main controller controls the charging chip to stop charging through the first input/output interface;
s14, when the charging is stopped for a second preset time, the main controller detects the voltage of the first output end of the charging chip through the analog-to-digital conversion port;
and S15, determining the current electric quantity of the electronic equipment according to the first output end voltage. Illustratively, the current electric quantity corresponding to the first output end voltage is determined according to a pre-stored voltage-electric quantity mapping relation.
According to the embodiment of the invention, the charge stopping detection is set through a software algorithm, namely when the ADC detects the voltage, the charging chip stops charging, then the detection is started, and the more accurate voltage is obtained, so that the electric quantity of the battery is obtained, and the technical problems of high cost and poor accuracy in the prior art are solved.
Illustratively, the power detection method of the invention further comprises: when no external power supply is inserted, the main controller detects the voltage of a second output end of the charging chip through the analog-to-digital conversion port; and determining the current electric quantity of the electronic equipment according to the second output end voltage. For example, the current power amount corresponding to the second output terminal voltage may be determined according to a pre-stored voltage-power amount mapping relationship.
The invention further provides electronic equipment, which comprises a main controller and a charging chip, wherein an enabling pin of the charging chip is connected with a first input/output interface of the main controller, an input end of the charging chip is connected with a second input/output port of the main controller, and an output end of the charging chip is connected with an analog-to-digital conversion port of the main controller;
the master controller is configured to:
when an external power supply is plugged in, the main controller receives a charging notification sent by the charging chip through an output end, and the main controller enters a charging mode;
the main controller controls the charging chip to start a charging mode through the first input/output interface;
after charging for a first preset time, the main controller controls the charging chip to stop charging through the first input/output interface;
after the charging is stopped for a second preset time, the main controller detects the voltage of the first output end of the charging chip through the analog-to-digital conversion port;
determining the current electric quantity of the electronic equipment according to the first output end voltage; illustratively, the current electric quantity corresponding to the first output end voltage is determined according to a pre-stored voltage-electric quantity mapping relation.
Illustratively, the master controller is further configured to: when no external power supply is inserted, the main controller detects the voltage of a second output end of the charging chip through the analog-to-digital conversion port; and determining the current electric quantity of the electronic equipment according to the second output end voltage.
The invention further provides a charging method for charging an electronic device, wherein the electronic device comprises a main controller and a charging chip, an enable pin of the charging chip is connected with a first input/output interface of the main controller, an input end of the charging chip is connected with a second input/output port of the main controller, and an output end of the charging chip is connected with an analog-to-digital conversion port of the main controller;
as shown in fig. 2, it is a flowchart of an embodiment of the charging method of the present invention, which includes the following steps:
s21, when an external power supply is inserted, the main controller receives a charging notification sent by the charging chip through an output end, and the main controller enters a charging mode;
s22, the main controller controls the charging chip to start a charging mode through the first input/output interface;
s23, after charging for a first preset time, the main controller controls the charging chip to stop charging through the first input/output interface;
s24, when the charging is stopped for a second preset time, the main controller detects the voltage of the first output end of the charging chip through the analog-to-digital conversion port;
s25, determining the current electric quantity of the electronic equipment according to the first output end voltage; exemplarily, the current electric quantity corresponding to the first output end voltage is determined according to a pre-stored voltage-electric quantity mapping relation;
s26, when the current electric quantity of the electronic equipment is lower than a preset electric quantity threshold value, jumping to the step S22, and otherwise, ending charging; for example, the preset charge threshold may be a charge value when the electronic device is fully charged.
Exemplarily, the charging method of the present invention further includes: when no external power supply is inserted, the main controller detects the voltage of a second output end of the charging chip through the analog-to-digital conversion port; and determining the current electric quantity of the electronic equipment according to the second output end voltage.
Illustratively, the charging method for the electronic device of the invention comprises the following steps:
1. when no external power supply is inserted, no charging is carried out at the moment, the voltage of the output end of the charging chip can be accurately detected by the ADC port of the main control MCU, the voltage is reported and recorded as V1, the corresponding electric quantity percentage B1 is found, and the UI interface can display the current moment
2. When an external power supply is inserted, the input end of the charging chip transmits the voltage information to the GPIO2 port on the main control MCU at the moment, and the main control MCU is informed that the external power supply is inserted and needs to enter a charging mode
3. After the master control MCU enters the charging mode, the master control MCU sends a command to the charging chip enable pin through the GPIO1 port, so that the charging chip starts to start the charging mode, the charging IC output pin starts to output voltage (generally 4.2-4.4V) and starts to charge the lithium battery
4. After charging for 6 minutes (the first preset time period) (which can be set according to needs, but cannot be too short, which can result in long overall charging time and too long which can result in too long reported electric quantity interval), the main control MCU will send a command to the charging chip enable pin through the GPIO1 port to notify the charging chip to stop charging (the purpose of stopping charging is set because the voltage at the output terminal of the charging chip is higher than the voltage of the battery during charging, and the voltage detected by the MCU ADC is higher than the voltage of the battery, which is not the true battery voltage)
5. And keeping the charging stop for 9 seconds (the second preset time period is that the purpose of keeping the charging stop for 9 seconds is that even after the charging is stopped, the voltage in the battery pack still floats high, the time of waiting for more than 4 seconds is needed to recover the battery pack to a normal state value, and then the detection is carried out, so that the voltage value at the moment is accurate), in the 10 th second, the MCUADC port starts to detect the voltage, records the voltage value as V2, finds the corresponding electric quantity percentage B2 at the moment, and updates the electric quantity of the battery at the moment
6. After the report is finished, the MCU sends a command to the charging chip enabling pin through the GPIO1 port to inform the charging chip to start charging, and after the charging is carried out for 6 minutes, the two steps of 4-5 are repeated until the battery is fully charged.
It should be noted that for simplicity of explanation, the foregoing method embodiments are described as a series of acts or combination of acts, but those skilled in the art will appreciate that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention. In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. An electric quantity detection method is used for measuring the electric quantity of electronic equipment, the electronic equipment comprises a main controller and a charging chip, an enabling pin of the charging chip is connected with a first input/output interface of the main controller, the input end of the charging chip is connected with a second input/output port of the main controller, and the output end of the charging chip is connected with an analog-to-digital conversion port of the main controller;
the method comprises the following steps:
when an external power supply is plugged in, the main controller receives a charging notification sent by the charging chip through an output end, and the main controller enters a charging mode;
the main controller controls the charging chip to start a charging mode through the first input/output interface;
after charging for a first preset time, the main controller controls the charging chip to stop charging through the first input/output interface;
after the charging is stopped for a second preset time, the main controller detects the voltage of the first output end of the charging chip through the analog-to-digital conversion port;
and determining the current electric quantity of the electronic equipment according to the first output end voltage.
2. The method of claim 1, further comprising:
when no external power supply is inserted, the main controller detects the voltage of a second output end of the charging chip through the analog-to-digital conversion port;
and determining the current electric quantity of the electronic equipment according to the second output end voltage.
3. The method of claim 1, wherein said determining a current amount of power for the electronic device from the first output voltage comprises:
and determining the current electric quantity corresponding to the voltage of the first output end according to a pre-stored voltage-electric quantity mapping relation.
4. The method according to any of claims 1-3, wherein the first preset duration is 6min and the second preset duration is 9 s.
5. An electronic device comprises a main controller and a charging chip, wherein an enabling pin of the charging chip is connected with a first input/output interface of the main controller, an input end of the charging chip is connected with a second input/output port of the main controller, and an output end of the charging chip is connected with an analog-to-digital conversion port of the main controller;
the master controller is configured to:
when an external power supply is plugged in, the main controller receives a charging notification sent by the charging chip through an output end, and the main controller enters a charging mode;
the main controller controls the charging chip to start a charging mode through the first input/output interface;
after charging for a first preset time, the main controller controls the charging chip to stop charging through the first input/output interface;
after the charging is stopped for a second preset time, the main controller detects the voltage of the first output end of the charging chip through the analog-to-digital conversion port;
and determining the current electric quantity of the electronic equipment according to the first output end voltage.
6. The device of claim 5, wherein the master controller is further configured to:
when no external power supply is inserted, the main controller detects the voltage of a second output end of the charging chip through the analog-to-digital conversion port;
and determining the current electric quantity of the electronic equipment according to the second output end voltage.
7. The device of claim 5, wherein said determining a current amount of power for the electronic device from the first output voltage comprises:
and determining the current electric quantity corresponding to the voltage of the first output end according to a pre-stored voltage-electric quantity mapping relation.
8. A charging method is used for charging electronic equipment, the electronic equipment comprises a main controller and a charging chip, an enabling pin of the charging chip is connected with a first input/output interface of the main controller, an input end of the charging chip is connected with a second input/output port of the main controller, and an output end of the charging chip is connected with an analog-to-digital conversion port of the main controller;
the method comprises the following steps:
s10, when an external power supply is inserted, the main controller receives a charging notification sent by the charging chip through an output end, and the main controller enters a charging mode;
s20, the main controller controls the charging chip to start a charging mode through the first input/output interface;
s30, after charging for a first preset time, the main controller controls the charging chip to stop charging through the first input/output interface;
s40, when the charging is stopped for a second preset time, the main controller detects the voltage of the first output end of the charging chip through the analog-to-digital conversion port;
s50, determining the current electric quantity of the electronic equipment according to the first output end voltage;
s60, when the current electric quantity of the electronic equipment is lower than a preset electric quantity threshold value, jumping to the step S20, and otherwise, ending the charging.
9. The method of claim 8, further comprising:
when no external power supply is inserted, the main controller detects the voltage of a second output end of the charging chip through the analog-to-digital conversion port;
and determining the current electric quantity of the electronic equipment according to the second output end voltage.
10. The method of claim 8, wherein said determining a current amount of power for the electronic device from the first output voltage comprises:
and determining the current electric quantity corresponding to the voltage of the first output end according to a pre-stored voltage-electric quantity mapping relation.
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| CN102005795A (en) * | 2010-11-29 | 2011-04-06 | 鸿富锦精密工业（深圳）有限公司 | Electric quantity detecting device for rechargeable battery |
| US20180048170A1 (en) * | 2016-08-15 | 2018-02-15 | Beijing Xiaomi Mobile Software Co., Ltd. | Electronic equipment, charger and charging method |
| CN110323827A (en) * | 2019-06-28 | 2019-10-11 | 努比亚技术有限公司 | Charging method, mobile terminal and computer readable storage medium |
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2020
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| CN102005795A (en) * | 2010-11-29 | 2011-04-06 | 鸿富锦精密工业（深圳）有限公司 | Electric quantity detecting device for rechargeable battery |
| US20180048170A1 (en) * | 2016-08-15 | 2018-02-15 | Beijing Xiaomi Mobile Software Co., Ltd. | Electronic equipment, charger and charging method |
| CN110323827A (en) * | 2019-06-28 | 2019-10-11 | 努比亚技术有限公司 | Charging method, mobile terminal and computer readable storage medium |
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Address after: 215123 building 14, Tengfei Innovation Park, 388 Xinping street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Applicant after: Sipic Technology Co.,Ltd. Address before: 215123 building 14, Tengfei Innovation Park, 388 Xinping street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Applicant before: AI SPEECH Co.,Ltd. |
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Application publication date: 20200925 |