CN105071484B - A kind of charging method and device of the terminal with data exchanging function - Google Patents

A kind of charging method and device of the terminal with data exchanging function Download PDF

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Publication number
CN105071484B
CN105071484B CN201510528762.3A CN201510528762A CN105071484B CN 105071484 B CN105071484 B CN 105071484B CN 201510528762 A CN201510528762 A CN 201510528762A CN 105071484 B CN105071484 B CN 105071484B
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terminal
usb interface
pins
voltage value
usb
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CN105071484A (en
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李路路
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Abstract

The embodiment of the invention discloses the charging method and device of a kind of terminal with data exchanging function, this method includes:Whether the power pins for detecting the USB interface of the terminal receive charging signals;It executes equipment charge access module if so, the terminal is switched to and controls the terminal charge;If it is not, then detecting the voltage value of the identified pins of the USB interface of the terminal, and execute corresponding control.Whether the embodiment of the present invention is by receiving charging signals as the Rule of judgment of switching terminal access module for the power pins of the general-purpose serial bus USB interface of the terminal, the access module switching to the USB interface of terminal is not only realized, but also solves the problems, such as that terminal caused by the USB interface short circuit of terminal in the prior art can not charge.

Description

A kind of charging method and device of the terminal with data exchanging function
Technical field
The present invention relates to charging technique more particularly to a kind of charging methods and dress of the terminal with data exchanging function It sets.
Background technique
OTG (On-The-Go) has been developed in recent years technology, is mainly used in a variety of different equipment or movement is set Connection between standby carries out data exchange.Such as digital camera is directly connected on printer, by OTG technology, connect two The USB interface of equipment room can print the photograph taken immediately.
Fig. 1 is the USB interface schematic diagram for the terminal that the prior art provides, which has grounding pin GND, mark Pin ID, positive voltage data pin D+, negative voltage data pin D- and power pins VBUS.As shown in Figure 1, terminal often through USB connecting line is connect to be charged by external power supply with external power supply.Terminal is to pass through terminal to the detection of OTG equipment The identified pins (ID) of USB interface are detected, then are communicated by USB interface;Terminal is logical to the detection of external power supply The power pins (VBUS) for crossing terminal USB interface are identified, thus terminal can accurately be identified by its USB interface it is external OTG equipment and external power supply.
Under normal circumstances, the identified pins (ID) of terminal USB interface are vacant state, i.e., are disconnected with grounding pin (GND) It opens, power pins (VBUS) will not generate the output voltage of 5V, so that terminal can complete normally charge detection and communication Control.But when USB interfaces of connecting wires or the aging of terminal USB interface or corrosion, lead to the USB connecting line of access terminal USB interface short circuit or the USB interface short circuit of terminal, both of these case can all make the identified pins (ID) and grounding lead of terminal interface Foot (GND) short circuit, so that the power pins VBUS of terminal exports 5V voltage signal, prevent terminal from charging, is brought to user Great inconvenience.
Summary of the invention
The present invention provides the charging method and device of a kind of terminal with data exchanging function, to solve in the prior art The problem of USB interface short circuit of terminal causes terminal to cannot achieve charging.
In a first aspect, the embodiment of the invention provides a kind of charging methods of terminal with data exchanging function, including:
Whether the power pins for detecting the general-purpose serial bus USB interface of the terminal receive charging signals;
It executes equipment charge access module if so, the terminal is switched to and controls the terminal charge;
If it is not, then detecting the voltage value of the identified pins of the USB interface of the terminal, and execute corresponding control.
Second aspect, the embodiment of the invention also provides a kind of charging unit of terminal with data exchanging function, packets It includes:
Power pins detection module, for detect the terminal general-purpose serial bus USB interface power pins whether Receive charging signals;
Access module switching module, for the power pins when the general-purpose serial bus USB interface for detecting the terminal When receiving charging signals, the terminal is switched to and executes equipment charge access module and controls the terminal charge;
Identified pins detection module, for the power pins when the general-purpose serial bus USB interface for detecting the terminal When not receiving charging signals, the voltage value of the identified pins of the USB interface of the terminal is detected, and executes corresponding control.
The charging method and device of a kind of terminal with data exchanging function provided by the invention, by detecting the end Whether the power pins of the general-purpose serial bus USB interface at end receive charging signals, will be described when receiving charging signals Terminal, which is switched to, to be executed equipment charge access module and controls the terminal charge;When being not received by charging signals, then examine The voltage value of the identified pins of the USB interface of the terminal is surveyed, and executes corresponding control.The embodiment of the present invention is by will test To the power pins of USB interface of terminal whether receive Rule of judgment of the charging signals as switching terminal access module, The access module switching to the USB interface of terminal is not only realized, but also solves the USB interface short circuit of terminal in the prior art Caused by terminal the problem of can not charging.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to do one simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the USB interface schematic diagram for the terminal that the prior art provides;
Fig. 2 is a kind of flow chart for terminal charging method with data exchanging function that the embodiment of the present invention one provides;
Fig. 3 is a kind of flow chart of the terminal charging method with data exchanging function provided by Embodiment 2 of the present invention;
Fig. 4 is a kind of schematic diagram for terminal charging device with data exchanging function that the embodiment of the present invention three provides.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, hereinafter with reference to attached in the embodiment of the present invention Figure, clearly and completely describes technical solution of the present invention by embodiment, it is clear that described embodiment is the present invention one Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment one
By the prior art it is found that when the USB interface of the USB connecting line of insertion terminal and/or the USB interface short circuit of terminal When, lead to the USB interface short circuit of terminal, then the power pins of terminal USB interface can export 5V voltage, and terminal is caused to cannot achieve Charging.
Fig. 2 is a kind of flow chart for terminal charging method with data exchanging function that the embodiment of the present invention one provides, The technical solution of the embodiment is applicable to have the terminal of OTG function according to the state of the power pins of USB interface, and judgement is The case where no execution equipment charge access module.Terminal can be any electronic equipment with OTG function, such as mobile phone, flat Plate computer etc..This method can be executed by the charging unit of the terminal with OTG function, the device can using software and/ Or the mode of hardware is realized, configuration executes in the terminal.As shown in Fig. 2, the charging side of the terminal with data exchanging function Method includes following operation:
S110, the detection terminal the power pins of general-purpose serial bus USB interface whether receive charging signals.If Charging signals are received, then execute S120;If being not received by charging signals, S130 is executed.
Such as above content, the USB interface of terminal have grounding pin GND, identified pins ID, positive voltage data pin D+, Negative voltage data pin D- and power pins VBUS.
When the USB interface of terminal have USB connecting line insertion when, terminal first determine whether its USB interface power pins whether Charging signals are received, and according to testing result, terminal is switched to and executes equipment charge access module or controlling terminal by control The voltage value of the identified pins of USB interface is continued to test to carry out corresponding operating.
This step using whether the power pins of the USB interface of terminal receive charging signals as pressure terminal by entering The judgment basis of charged state makes terminal be in charging when the power pins of the USB interface of terminal are when receiving charging signals Access module charges to terminal.
S120, the terminal is switched to execution equipment charge access module and controls the terminal charge.
Above-mentioned steps specifically can be when detecting that the power pins of USB interface of terminal receive charging signals, will Terminal, which is switched to, executes equipment charge access module and controlling terminal charging.This addresses the problem the USB line of insertion terminal or ends Cause terminal USB interface short circuit that terminal can not be filled when holding the identified pins (ID) of USB interface with grounding pin (GND) short circuit The situation of electricity.
In this step, the USB interface of the USB line or terminal that no matter are inserted into terminal is short circuit or normal, as long as detecting The power pins of the USB interface of terminal receive charging signals, then terminal is forced to be switched to equipment charge access module, so that eventually It charges at end.
S130, the detection terminal USB interface identified pins voltage value, and execute corresponding control.
Above-mentioned steps, which specifically can be to work as, detects that the power pins of the USB interface of terminal are not received by charging signals When, the voltage value of the identified pins of the USB interface of terminal is detected, and hold according to the voltage value of the identified pins of terminal USB interface The corresponding control of row.
Whether the power pins that the embodiment of the present invention will test the general-purpose serial bus USB interface of the terminal, which receive, is filled Rule of judgment of the electric signal as switching terminal access module not only realizes the access module switching to the USB interface of terminal, And solve in the prior art due to the short circuit of the identified pins of USB connecting line and/or the USB interface of terminal USB interface, cause The short circuit of terminal USB interface and caused by terminal the problem of can not charging.
Embodiment two
Fig. 3 is a kind of flow chart of the terminal charging method with data exchanging function provided by Embodiment 2 of the present invention. This method can be executed by the charging unit of the terminal with OTG function, which can use the side of software and/or hardware Formula realizes that configuration executes in the terminal.As shown in figure 3, the charging method of the terminal with data exchanging function includes as follows Operation:
S201, the detection terminal general-purpose serial bus USB interface power pins at voltage value whether be greater than or Equal to setting threshold value.
Above-mentioned steps specifically can be, when the USB interface for having USB line to be inserted into the terminal, first to the terminal Voltage value at the power pins of USB interface is detected, and the voltage value is compared with predetermined threshold value, judges institute State whether voltage value is greater than or equal to setting threshold value.Such as the threshold value that sets is 5V, at this to the setting threshold value It is not especially limited.
It is set in this step by the way that whether the voltage value at the power pins for the USB interface for detecting the terminal is greater than or equal to Determine threshold value, for judging whether the USB interface of the terminal has power-supply device access, i.e., whether receives charging signals.This Step can be set in the case where the USB interface for the USB line or terminal that terminal accesses is short-circuit so that terminal can also carry out power supply Standby access detection, solves problem of the prior art.
It is set if the voltage value at the power pins of the general-purpose serial bus USB interface of S202, the terminal is greater than or equal to Determine threshold value, it is determined that receive charging signals, and the terminal is switched to and executes equipment charge access module, described in control Terminal charge.
The specific can be that the electricity when terminal does not have external other equipment, at the power pins of the terminal USB interface Pressure is zero.Voltage value at the power pins of the terminal USB interface is greater than or equal to setting threshold value, that is, there is external electricity Source can control at this time terminal being switched to execution equipment charge access module to terminal input voltage signal, then external power supply is Terminal charges.Optionally, the setting threshold value can be 5V.
If the voltage value at the power pins of the USB interface of S203, the terminal, which is less than, sets threshold value, described in detection Whether the voltage value of the identified pins of the USB interface of terminal is setting low level.If so, executing S204;If it is not, then continuing to hold Row S201, that is, continue to test whether the voltage value at the power pins of the USB interface of the terminal is greater than or equal to setting thresholding Value.
Specifically, when can be voltage value at the power pins of the USB interface of terminal and being less than setting threshold value, then really Determine the access of terminal USB interface non-transformer equipment, whether the voltage value to the identified pins of the USB interface of the terminal is that setting is low Level is detected, and is judged whether terminal is switched to according to this and executed data exchange access module.
S204, when detection obtain the terminal USB interface identified pins voltage value for setting low level when, by institute It states terminal and is switched to execution data exchange access module, and execute the data exchange with external equipment.
When the identified pins of terminal USB interface are setting low level, illustrate to have detected OTG at the USB interface of terminal Equipment access, then carrying out OTG detection after terminal is switched to data exchange access module at this time to the OTG equipment of access, knowing It not and accesses, to carry out the data exchange with OTG equipment.
S205, the control terminal USB interface power pins output voltage.
Under data exchange access module, when having the access of OTG equipment at the USB interface of terminal, the terminal is controlled The power pins of USB interface export preset voltage value, supply external OTG equipment, and the data to realize terminal and OTG equipment are logical Letter.Illustratively, the preset voltage value can be 5V, not to the specific restriction of preset voltage value.
A kind of charging method of terminal with data exchanging function provided by Embodiment 2 of the present invention, it is described when detecting When terminal, it is determined that receive charging signals, terminal has power-supply device access, and the terminal is switched to and executes equipment charge visit It asks mode, controls the terminal charge.The present embodiment will test at the power pins of general-purpose serial bus USB interface of terminal Whether voltage value is greater than or equal to Rule of judgment of the setting threshold value as switching terminal access module, not only realizes to terminal USB interface access module switching, also solve in the prior art due to the USB interface of the USB connecting line of access terminal, And/or the identified pins short circuit of the terminal USB interface, it eventually leads to caused by the identified pins short circuit of the USB interface of terminal Terminal the problem of can not charging.
Embodiment three
Fig. 4 is a kind of schematic diagram for terminal charging device with data exchanging function that the embodiment of the present invention three provides. The device can execute the charging of the terminal described in above-described embodiment with OTG function by the way of software and/or hardware Method, device configuration execute in the terminal.
A kind of charging unit of terminal with data exchanging function provided in this embodiment includes:Power pins detect mould Block 310, access module switching module 320 and identified pins detection module 330.
Wherein, the power supply for the general-purpose serial bus USB interface that power pins detection module 310 is used to detect the terminal draws Whether foot receives charging signals;Access module switching module 320 is used for when the general-purpose serial bus USB for detecting the terminal When the power pins of interface receive charging signals, the terminal is switched to and is executed described in equipment charge access module and control Terminal charge;Identified pins detection module 330, which is used to work as, detects that the power supply of the general-purpose serial bus USB interface of the terminal draws When foot does not receive charging signals, the voltage value of the identified pins of the USB interface of the terminal is detected, and executes corresponding control.
Optionally the power pins detection module 310 is specifically used for:The general-purpose serial bus USB for detecting the terminal connects Whether the voltage value at the power pins of mouth is greater than or equal to setting threshold value, if so, determination receives charging signals.It is optional , the setting threshold value can be 5V.
Optionally the identified pins detection module 330 includes:Pin level detection unit 331 and data access switching are single Member 332.
Wherein, pin level detection unit 331, which is used to detect the voltage value of the identified pins of the USB interface of the terminal, is No is setting low level;Data access switch unit 332 is used for the electricity when the identified pins for the USB interface for detecting the terminal When pressure value is setting low level, then the terminal is switched to and executes data exchange access module.
Optionally the charging unit further includes:Pin voltage output unit 333.
Wherein, the terminal for being switched to by pin voltage output unit 333 in the data access switch unit 332 After executing data exchange access module, the power pins output voltage of the USB interface of the terminal is controlled.
A kind of device for terminal with data exchanging function that the embodiment of the present invention three provides, is detected by power pins Whether the power pins that module detects the general-purpose serial bus USB interface of the terminal receive charging signals, fill when receiving When electric signal, the terminal is switched to execute equipment charge access module and control the terminal by access module switching module fills Electricity;When being not received by charging signals, then the voltage value of the identified pins of the USB interface of the terminal is detected, and executes phase It should control.Whether the power pins that the present invention will test the general-purpose serial bus USB interface of the terminal receive charging signals As the Rule of judgment of switching terminal access module, the access module switching to the USB interface of terminal is not only realized, but also solve It has determined in the prior art due to the short circuit of the identified pins of USB connecting line and/or the USB interface of terminal USB interface, has led to terminal USB interface short circuit and caused by terminal the problem of can not charging.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation, It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.

Claims (4)

1. a kind of charging method of the terminal with data exchanging function, which is characterized in that including:
In the USB interface of USB line insertion terminal, the electricity with the general-purpose serial bus USB interface of terminal of OTG function is detected Whether the voltage value at source pin is greater than setting threshold value, for judging whether the USB interface of the terminal has power-supply device to connect Enter, realizes in the case where the USB interface for the USB line or terminal that terminal accesses is short-circuit, make terminal that can also carry out power-supply device Access detection;
If the voltage value at the power pins of the general-purpose serial bus USB interface of the terminal is greater than setting threshold value, force The terminal is switched to and executes equipment charge access module and controls the terminal charge;
If the voltage value of the power pins of the USB interface of the terminal is less than setting threshold value, the USB for detecting the terminal is connect Whether the voltage value of the identified pins of mouth is setting low level;
Data exchange access module is executed if so, the terminal is switched to;
If it is not, whether the voltage value then continued to test at the power pins of the USB interface of the terminal is greater than setting threshold value;
Under data exchange access module, when having the access of OTG equipment at the USB interface of terminal, the USB for controlling the terminal is connect The power pins of mouth export preset voltage value, external OTG equipment are supplied, to realize the data communication of terminal Yu OTG equipment.
2. charging method according to claim 1, which is characterized in that the threshold value that sets is 5V.
3. a kind of charging unit of the terminal with data exchanging function, which is characterized in that including:
Power pins detection module, for detecting the logical of the terminal with OTG function in the USB interface of USB line insertion terminal Whether it is greater than setting threshold value with the voltage value at the power pins of serial bus USB interface, for judging the USB of the terminal Whether interface has power-supply device access, realizes in the case where the USB interface for the USB line or terminal that terminal accesses is short-circuit, makes end End can also carry out the access detection of power-supply device;
Access module switching module, if the electricity of the power pins of the general-purpose serial bus USB interface for detecting the terminal Pressure value is greater than setting threshold value, then forces for the terminal to be switched to execute equipment charge access module and control the terminal and fill Electricity;
Identified pins detection module, if the electricity of the power pins of the general-purpose serial bus USB interface for detecting the terminal Pressure value is less than setting threshold value, then detects the voltage value of the identified pins of the USB interface of the terminal, and executes corresponding control;
The identified pins detection module includes:
Whether the voltage value of pin level detection unit, the identified pins of the USB interface for detecting the terminal is that setting is low Level, if it is not, whether the voltage value then continued to test at the power pins of the USB interface of the terminal is greater than setting threshold value;
Data access switch unit, the voltage value for the identified pins when the USB interface for detecting the terminal are low to set When level, then the terminal is switched to and executes data exchange access module;
The charging unit further includes:Pin voltage output unit is used under data exchange access module, as the USB of terminal When interface has the access of OTG equipment, the power pins output preset voltage value of the USB interface of the terminal is controlled, is supplied external OTG equipment, to realize the data communication of terminal Yu OTG equipment.
4. charging unit according to claim 3, which is characterized in that the threshold value that sets is 5V.
CN201510528762.3A 2015-08-25 2015-08-25 A kind of charging method and device of the terminal with data exchanging function Active CN105071484B (en)

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CN106412245B (en) * 2016-09-06 2021-02-26 青岛海信移动通信技术股份有限公司 USB interface waterproof method and mobile terminal
CN106300564A (en) * 2016-10-31 2017-01-04 宇龙计算机通信科技(深圳)有限公司 A kind of charging method and mobile terminal
CN108270266A (en) * 2018-01-22 2018-07-10 维沃移动通信有限公司 A kind of charging method and charger
CN110442539A (en) * 2019-06-17 2019-11-12 华为技术有限公司 Mobile phone OTG switching method and apparatus

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