CN105048555B - A kind of method and system of USB charger charging identification - Google Patents
A kind of method and system of USB charger charging identification Download PDFInfo
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- CN105048555B CN105048555B CN201510470037.5A CN201510470037A CN105048555B CN 105048555 B CN105048555 B CN 105048555B CN 201510470037 A CN201510470037 A CN 201510470037A CN 105048555 B CN105048555 B CN 105048555B
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- China
- Prior art keywords
- charger
- identification marking
- mobile terminal
- symbol
- identification
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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 present invention provides a kind of method and system of USB charger charging identification, by the way that identical first identification marking symbol is stored in the charger and mobile terminal to match in advance, after mobile terminal is connected to power supply by charger, obtain the first identification marking symbol stored in charger, and judge whether the first identification marking got symbol and its pre-stored first identification marking symbol are identical, if identical, then the charger control charges to the mobile terminal, otherwise the charger is forbidden charging to the mobile terminal, to realize mobile terminal only by charging provided with the charger that identification marking accords with, avoid the security risk that may occur when being charged using other chargers.
Description
Technical field
The present invention relates to intelligent terminal field more particularly to a kind of method and system of USB charger charging identification.
Background technology
Mobile terminal generally uses rechargeable battery at present, and therefore, routine use charger charges to mobile terminal
It is the most commonly used one of function；Conventionally, as charger generally use USB interface, therefore be all it is general, only
Want mobile terminal connection charger that can start to charge up, centre lacks the identification to charger, if user connects damage
Charger or non-standard charger, there may be some potential safety problems；Although some mobile terminal manufacturers exist
Distinctive identification function is added in its charger, if iPhone can only be charged using apple charger, this is because
Apple charger has connected upper and lower pull-up resistor on DP, DN foot of the USB interface of charger internal, only insighted in iPhone
The resistance being clipped in the respective pins of charger just allows to charge；However, the technical solution of these chargers is simple, it is easy to quilt
It imitates.
Therefore, the identification technology of charger is more lacked in the prior art, it is too simple easily by mould having
Imitative, when user charges to mobile terminal using charger, there are security risks.
Invention content
In view of above-mentioned shortcoming in the prior art, it is an object of the invention to provide a kind of USB charger to the user
Charge the method and system of identification, overcome in the prior art charger it is low to the recognition performance of mobile terminal, cause using not
When the charger to match is charged, the defect for the security risk that may cause.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of USB charger charging knowledge method for distinguishing, wherein including：
A, identical first identification marking symbol is stored in the charger and mobile terminal to match in advance；
B, when mobile terminal connection charger charging, the first identification marking symbol stored in charger is obtained；And judge
Whether the first identification marking symbol and its got is stored in advance in local the first identification marking and accords with identical, if identical, holds
Row step C, it is no to then follow the steps D；
C, the charger control charges to the mobile terminal；
D, the charger is forbidden charging to the mobile terminal.
Method for distinguishing is known in USB charger charging, wherein the step C further includes：
C1, the mobile terminal generate the second identification marking symbol, and by the symbol storage to charger of the second identification marking, replace
Change the first identification marking symbol wherein stored.
Method for distinguishing is known in USB charger charging, wherein the method further includes：
E, when mobile terminal is again coupled to charger charging, the second identification marking symbol stored in charger is obtained；And
Second identification marking symbol and the second identification marking symbol of storage in memory are matched, if identical, allow to pass through institute
It states charger to charge, otherwise no thoroughfare, and the charger charges.
Method for distinguishing is known in USB charger charging, wherein the step B further includes：
When B1, charger power on, whether rising edge voltage pulse is generated by the VBUS pins on charger detection USB interface
Signal then illustrates that charger is connected with mobile terminal when detecting rising edge voltage pulse signal, otherwise illustrates charger not
It is connected with mobile terminal.
Method for distinguishing is known in any one USB charger charging, wherein the first identification marking symbol or the second identification
Identifier is time data character.
A kind of system of USB charger charging identification, wherein including：
Memory module is identified, for storing identical first identification mark in the charger and mobile terminal to match in advance
Know symbol；
Charge identification module, for when mobile terminal connection charger charges, obtaining first stored in charger and knowing
Other identifier；And judge the first identification marking got symbol with its be stored in advance in local the first identification marking accord with whether phase
Together；
Charging module is controlled, for being stored in advance in the first local identification when the first identification marking symbol got and its
When identifier is identical, then controls the charger and charge to the mobile terminal；
Forbid charging module, the first identification marking symbol for getting is stored in advance in the first local identification with it and marks
When knowledge symbol differs, then controls the charger and forbid charging to the mobile terminal.
The system of USB charger charging identification, wherein the control charging module further includes：Identify updating unit,
The second identification marking symbol is generated for the mobile terminal, and by the symbol storage to charger of the second identification marking, is replaced wherein
The first identification marking symbol of storage.
The system of the USB charger charging identification, wherein the system also includes：
Module is again identified that, for when mobile terminal is again coupled to charger charging, obtaining the stored in charger
Two identification markings accord with；And second identification marking symbol and the second identification marking symbol of storage in memory match, if phase
Together, then allow to charge by the charger, otherwise no thoroughfare, and the charger charges.
The system of USB charger charging identification, wherein the charging identification module includes：Connecting detection unit is used
When charger powers on, whether rising edge voltage pulse signal is generated by the VBUS pins on charger detection USB interface, works as inspection
Rising edge voltage pulse signal is measured, then illustrates that charger is connected with mobile terminal, otherwise illustrates charger not with movement eventually
End is connected.
The system of the USB charger charging identification, wherein the first identification marking symbol or the second identification marking symbol
For time data character.
Advantageous effect, the present invention provides a kind of method and system of USB charger charging identification, by advance in phase
Identical first identification marking symbol is stored in the charger and mobile terminal matched, when mobile terminal is connected to power supply by charger
Afterwards, the first identification marking symbol stored in charger is obtained, and judges that the first identification marking got symbol is prestored with it
The first identification marking symbol it is whether identical, if identical, charger control charges to the mobile terminal, otherwise institute
It states charger to forbid charging to the mobile terminal, to realize that mobile terminal is only filled by what is accorded with provided with identification marking
Electric appliance charges, and avoids the security risk that may occur when being charged using other chargers.
Description of the drawings
Fig. 1 is the step flow chart that method for distinguishing is known in a kind of USB charger charging of the present invention.
Fig. 2 is that flow chart of steps in method for distinguishing specific embodiment is known in a kind of USB charger charging of the present invention.
Fig. 3 is a kind of theory structure schematic diagram of the system of USB charger charging identification of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and do not have to
It is of the invention in limiting.
It charges the present invention provides a kind of USB charger and knows method for distinguishing, as described in Figure 1, the method includes：
S1, identical first identification marking symbol is stored in the charger and mobile terminal to match in advance.
The identification marking for carrying out match cognization is prestored in charger and mobile terminal to accord with.The identification marking
Symbol can be arranged with User Defined, or by mobile terminal acquiescence generate after, input and be stored in charger.
Preferably, the identification marking symbol can be encrypted character string.After it is encrypted in the terminal,
Encrypted character string, is then transferred in charger and stores by storage.
S2, when mobile terminal connection charger charging when, obtain charger in store the first identification marking symbol；And judge
The the first identification marking symbol got matches with its pre-stored first identification marking symbol, if identical, thens follow the steps S3,
It is no to then follow the steps S4.
When mobile terminal is connected with charger, then the VBUS pins of the USB interface of charger will produce rising edge
Voltage pulse signal, thus whether can be generated by the VBUS pins to charger UDB interfaces the signal to charger whether
It is connected with mobile terminal and is judged, therefore this step further includes specifically：
When charger powers on, detect whether the VBUS pins on its USB interface generate rising edge voltage pulse by charger
Signal is detected, and when detecting rising edge voltage pulse signal, is then illustrated that charger is connected with mobile terminal, is otherwise illustrated
Charger is not connected with mobile terminal.
When charger is connected with mobile terminal, then mobile terminal obtains the memory module in charger from charger
First identification marking of middle storage accords with, and judges that the symbol of the first identification marking in charger and the first identification of its storage inside are marked
Whether identical know symbol, if identical, thens follow the steps S3, it is no to then follow the steps S4.
S3, the control charger control charge to the mobile terminal.
If charger is identical with the first identification marking symbol in mobile terminal, illustrate to connect to establish with charger
It is matched mobile terminal, then charger control charges to mobile terminal.
S4, the control charger are forbidden charging to the mobile terminal.
If charger is different with the first identification marking symbol in mobile terminal, illustrate to connect to establish with charger
Be not matched mobile terminal, then control charger and forbid charging to mobile terminal.
The step S3 further includes：
S31, the mobile terminal generate the second identification marking symbol, and the second identification marking symbol is stored into charger,
Replace the first identification marking symbol wherein stored.
The method further includes：
S5, when mobile terminal be again coupled to charger charging when, obtain charger in store the second identification marking symbol；And
Second identification marking symbol and the second identification marking symbol of storage in memory are matched, if identical, allow to pass through institute
It states charger to charge, otherwise no thoroughfare, and the charger charges.
Preferably, the first identification marking symbol or the second identification marking symbol are time data character.Due to generation
Identification marking symbol data are to be set as time composition, and time data can have uniqueness, therefore identification marking symbol is not
The phenomenon that will appear repetition.Such as：Obtain composition data in accordance with the following methods after current time：If the current time obtained is 24
Hour system, e divides f seconds when being a b month c day d, then the data generated are abcdef, and wherein a is four figures, remaining is double figures,
It is filled by 0 insufficient position；Such as the time of acquisition 36 divides the data then generated for 08 second to be when being 02 day 20 November in 2014
20141102203608。
In order to which the above method is described in more details, below by taking its concrete application embodiment as an example, it is done
Further explanation.
USB interface includes in the prior art：Tetra- pins of VBUS, DP, DN, GND, two pins of VBUS, GND and charging are defeated
Go out equipment to be connected, two pins of DP, DN are connected with storage unit；
Preferably, power down nonvolatile memory is set as in charger, such as FLASH, EEPROM accord with identification marking
It is preserved, the specific storage unit is I2C interface, and clock line, data line are respectively connected to DP, DN of USB interface
Pin.
Whether setting is attached the module being detected with charger to mobile terminal in charger, passes through detection
The interruption of USB interface VBUS pins detects whether mobile terminal is connected with charger, when mobile terminal is connected with charger
When connecing, VBUS pins will generate rising edge and interrupt, and when the connection of mobile terminal and charger disconnects, VBUS pins will be under generation
Drop is along interruption.
Charge control module is also set up in charger, which is used to control the enabled and forbidden energy of charge function.
Module for reading and writing, the mould for obtaining the identification marking symbol stored in storage unit in charger are provided in mobile terminal
Block is used to read or write the storage unit in charger；Specifically, the clock of I2C is used as by DP, DN pin of USB interface
Line, data line read and write the storage unit of charger internal.
When mobile terminal is connected with charger, mobile terminal reads the identification marking preserved in charger storage unit
Identification marking symbol is compared by symbol with the identification marking symbol being arranged in mobile terminal, and charger is legal if equal, fills
Charge control module in electric appliance then allows charger to charge mobile terminal, otherwise, judge charger be it is illegal, because
This forbids charger to charge mobile terminal.
It is zero to preserve variable k in the terminal, and the primary data preserved in the storage unit of charger is also zero,
After mobile terminal manufacture, as described in Figure 2, following steps are executed when user is charged using charger：
Step S1, charger detects that mobile terminal is connected with charger；
Step S2, the module for reading and writing data of reading and saving in the memory unit from the storage unit of charger, are set as k1；
Step S3, data1 is compared with the variable k that mobile terminal preserves, illustrates that charger is legal if identical, it
Step S4 is executed afterwards；Illustrate that charger is illegal if differing, executes step S6 later；
Step S4, control charger charges to mobile terminal；
Step S5, data generation module obtains current time and generates data k2, and k2 is assigned to k, and k is then passed through reading
The storage unit of charger is written in writing module；
Step S6, charger is forbidden to charge mobile terminal.
Under the premise of the above method provided by the invention, the present invention also provides a kind of USB charger charging knowledges
Other system, as described in Figure 3, the system comprises：
Memory module 110 is identified, is known for storing identical first in the charger and mobile terminal to match in advance
Other identifier；
Charge identification module 120, for when mobile terminal connection charger charging, obtaining the stored in charger
One identification marking accords with；And judge that the first identification marking got symbol is stored in advance in local the first identification marking symbol with it and is
It is no identical；
Charging module 130 is controlled, for being stored in advance in local first with it when the first identification marking got is accorded with
When identification marking symbol is identical, then controls the charger and charge to the mobile terminal；
Forbid charging module 140, the first identification marking symbol for getting is stored in advance in local first with it to be known
When other identifier differs, then controls the charger and forbid charging to the mobile terminal.
The control charging module further includes：It identifies updating unit, the second identification marking is generated for the mobile terminal
Symbol, and by the symbol storage to charger of the second identification marking, replace the first identification marking symbol wherein stored.
The system also includes：
Module is again identified that, for when mobile terminal is again coupled to charger charging, obtaining the stored in charger
Two identification markings accord with；And second identification marking symbol and the second identification marking symbol of storage in memory match, if phase
Together, then allow to charge by the charger, otherwise no thoroughfare, and the charger charges.
The charging identification module includes：Connecting detection unit, for passing through on USB interface when the charger
Whether VBUS pins, which generate rising edge voltage pulse signal, is detected, and when detecting rising edge voltage pulse signal, then illustrates
Charger is connected with mobile terminal, otherwise illustrates that charger is not connected with mobile terminal.
The first identification marking symbol or the second identification marking symbol are time data character.
Advantageous effect, the present invention provides a kind of method and system of USB charger charging identification, by advance in phase
Identical first identification marking symbol is stored in the charger and mobile terminal matched, when mobile terminal is connected to power supply by charger
Afterwards, the first identification marking symbol stored in charger is obtained, and judges that the first identification marking got symbol is prestored with it
The first identification marking symbol it is whether identical, if identical, charger control charges to the mobile terminal, otherwise institute
It states charger to forbid charging to the mobile terminal, to realize that mobile terminal is only filled by what is accorded with provided with identification marking
Electric appliance charges, and avoids the security risk that may occur when being charged using other chargers.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement should all belong to the guarantor of appended claims of the invention
Protect range.
Claims (4)
1. method for distinguishing is known in a kind of USB charger charging, which is characterized in that including：
A, identical first identification marking symbol is stored in the charger and mobile terminal to match in advance；
B, when mobile terminal connection charger charging, the first identification marking symbol stored in charger is obtained；And judge to obtain
To the first identification marking symbol be stored in advance in local the first identification marking with it and whether identical accord with, if identical, execute step
Rapid C, it is no to then follow the steps D；
C, the charger control charges to the mobile terminal；
D, the charger is forbidden charging to the mobile terminal；
The step C further includes：
C1, the mobile terminal generate the second identification marking symbol, and by the symbol storage to charger of the second identification marking, replace it
First identification marking of middle storage accords with；
The method further includes：
E, when mobile terminal is again coupled to charger charging, the second identification marking symbol stored in charger is obtained；And by institute
It states the second identification marking symbol with the second identification marking symbol of storage in memory to match, if identical, allows to fill by described
Electric appliance charges, and otherwise no thoroughfare, and the charger charges；
The first identification marking symbol or the second identification marking symbol are time data character；
The first identification marking symbol or the second identification marking symbol are formed in accordance with the following methods after obtaining current time：If obtaining
Current time be to make for 24 hours, e divides f seconds when being a b month c day d, then first identification marking that generates accords with or second
Identification marking symbol is abcdef, and wherein a is four figures, remaining is double figures, and insufficient position is filled by 0.
2. method for distinguishing is known in USB charger charging according to claim 1, which is characterized in that the step B further includes：
When B1, charger power on, whether rising edge voltage pulse letter is generated by the VBUS pins on charger detection USB interface
Number, when detecting rising edge voltage pulse signal, then illustrate that charger is connected with mobile terminal, otherwise illustrate charger not with
Mobile terminal is connected.
3. a kind of system of USB charger charging identification, which is characterized in that including：
Memory module is identified, for storing identical first identification marking in the charger and mobile terminal to match in advance
Symbol；
Charge identification module, for when mobile terminal connection charger charges, obtaining the first identification mark stored in charger
Know symbol；And judge the first identification marking got symbol with its be stored in advance in local the first identification marking accord with it is whether identical；
Charging module is controlled, for being stored in advance in the first local identification marking with it when the first identification marking got is accorded with
When according with identical, then controls the charger and charge to the mobile terminal；
Forbid charging module, the first identification marking symbol for getting is stored in advance in the first local identification marking with it and accords with
When differing, then controls the charger and forbid charging to the mobile terminal；
The control charging module further includes：It identifies updating unit, the second identification marking symbol is generated for the mobile terminal, and
By in the symbol storage to charger of the second identification marking, the first identification marking symbol wherein stored is replaced；
The system also includes：
Module is again identified that, for when mobile terminal is again coupled to charger charging, obtaining second stored in charger and knowing
Other identifier；And second identification marking symbol and the second identification marking symbol of storage in memory match, if identical,
Allow to charge by the charger, otherwise no thoroughfare, and the charger charges；
The first identification marking symbol or the second identification marking symbol are time data character；
The first identification marking symbol or the second identification marking symbol are formed in accordance with the following methods after obtaining current time：If obtaining
Current time be to make for 24 hours, e divides f seconds when being a b month c day d, then first identification marking that generates accords with or second
Identification marking symbol is abcdef, and wherein a is four figures, remaining is double figures, and insufficient position is filled by 0.
4. the system of USB charger charging identification according to claim 3, which is characterized in that the charging identification module packet
It includes：Whether connecting detection unit when being powered on for charger, rising is generated by the VBUS pins on charger detection USB interface
Then illustrate that charger is connected with mobile terminal when detecting rising edge voltage pulse signal along voltage pulse signal, otherwise say
Bright charger is not connected with mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510470037.5A CN105048555B (en) | 2015-08-04 | 2015-08-04 | A kind of method and system of USB charger charging identification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510470037.5A CN105048555B (en) | 2015-08-04 | 2015-08-04 | A kind of method and system of USB charger charging identification |
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| Publication Number | Publication Date |
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| CN105048555A CN105048555A (en) | 2015-11-11 |
| CN105048555B true CN105048555B (en) | 2018-09-07 |
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| CN201510470037.5A Expired - Fee Related CN105048555B (en) | 2015-08-04 | 2015-08-04 | A kind of method and system of USB charger charging identification |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826975B (en) * | 2016-03-25 | 2018-07-27 | 维沃移动通信有限公司 | A kind of charging circuit, mobile terminal and charge control method |
| CN105896649B (en) * | 2016-04-12 | 2018-09-04 | 广东欧珀移动通信有限公司 | Terminal and the method for control terminal charging |
| CN107677923A (en) * | 2016-08-02 | 2018-02-09 | 昆山研达电脑科技有限公司 | The detecting system and method for tablet personal computer charging connection situation |
| CN106816923A (en) * | 2016-12-26 | 2017-06-09 | 广东欧珀移动通信有限公司 | A kind of wireless original-pack adapter knows method for distinguishing and terminal |
| CN107492923A (en) * | 2017-07-27 | 2017-12-19 | 无锡昊瑜节能环保设备有限公司 | Energy-saving type portable power source based on Bluetooth control |
| CN109409141B (en) * | 2017-08-18 | 2020-08-11 | 纬创资通（中山）有限公司 | Electronic device and charging control method thereof |
| WO2019084813A1 (en) * | 2017-10-31 | 2019-05-09 | 深圳市柔宇科技有限公司 | Electronic device and charging cable verification method |
| CN108923512A (en) * | 2018-06-28 | 2018-11-30 | 珠海市魅族科技有限公司 | A kind of power supply adaptor, charging system and method |
| CN109301888B (en) * | 2018-08-27 | 2022-03-25 | Tcl移动通信科技（宁波）有限公司 | Charging interference-free control method, mobile terminal and storage medium |
| WO2020113472A1 (en) * | 2018-12-05 | 2020-06-11 | 深圳市欢太科技有限公司 | Charge prompting method and device, mobile terminal, and computer-readable storage medium |
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| CN102300177A (en) * | 2011-09-28 | 2011-12-28 | 宇龙计算机通信科技(深圳)有限公司 | terminal, server and identification code updating method |
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| JP5773920B2 (en) * | 2012-03-19 | 2015-09-02 | ルネサスエレクトロニクス株式会社 | Charger |
| CN103645400B (en) * | 2013-12-10 | 2016-05-11 | Tcl通讯（宁波）有限公司 | A kind of charger detection system and method for measuring charged thereof |
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| CN102300177A (en) * | 2011-09-28 | 2011-12-28 | 宇龙计算机通信科技(深圳)有限公司 | terminal, server and identification code updating method |
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| CN104007342A (en) * | 2014-05-23 | 2014-08-27 | Tcl通讯（宁波）有限公司 | Charger, charger detection system and detection method thereof |
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