CN105071484A - Charging method and apparatus of terminal having data exchange function - Google Patents
Charging method and apparatus of terminal having data exchange function Download PDFInfo
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- CN105071484A CN105071484A CN201510528762.3A CN201510528762A CN105071484A CN 105071484 A CN105071484 A CN 105071484A CN 201510528762 A CN201510528762 A CN 201510528762A CN 105071484 A CN105071484 A CN 105071484A
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Abstract
The embodiment of the invention discloses a charging method and apparatus of a terminal having a data exchange function. The method comprises: whether a power pin of a USB interface of a terminal receives a charging signal or not is detected; if so, the terminal is switched into an equipment charging access execution mode and the terminal is controlled to be charged; if not, a voltage value of an identified pin of the USB interface of the terminal is detected and corresponding control is executed. According to the embodiment of the invention, whether the power pin of the universal serial bus (USB) interface of the terminal receives the charging signal is used as the determination condition of switching to the terminal access mode, so that switching of the access mode of the USB interface of the terminal is realized and a problem that the terminal can not be charged due to short circuit of the USB interface of the terminal in the prior art can be solved.
Description
Technical field
The present invention relates to charging technique, particularly relate to a kind of charging method and the device with the terminal of data exchanging function.
Background technology
OTG (On-The-Go) is the technology grown up in recent years, is mainly used in the connection between various different equipment or mobile device, carries out exchanges data.Such as digital camera is directly connected on printer, by OTG technology, connects the USB interface of two equipment rooms, the photograph taken can be printed immediately.
The USB interface schematic diagram of the terminal that Fig. 1 provides for prior art, this USB interface has grounding pin GND, identified pins ID, positive voltage data pin D+, negative voltage data pin D-and power pins VBUS.As shown in Figure 1, terminal is connected to be charged by external power supply often through USB connecting line with external power supply.The detection of terminal to OTG equipment is detected by the identified pins (ID) of terminal USB interface, then communicated by USB interface; The detection of terminal to external power supply is identified by the power pins (VBUS) of terminal USB interface, and therefore terminal identifies external OTG equipment and external power supply accurately by its USB interface.
Under normal circumstances, the identified pins (ID) of terminal USB interface is vacant state, namely be disconnect with grounding pin (GND), power pins (VBUS) can not produce the output voltage of 5V, thus terminal can complete normal charging detects and Control on Communication.But when USB interfaces of connecting wires or terminal USB interface is aging or corrosion, cause the USB interface short circuit of the USB connecting line accessed terminal or the USB interface short circuit of terminal, both of these case all can make the identified pins (ID) of terminal interface and grounding pin (GND) short circuit, thus the power pins VBUS of terminal exports 5V voltage signal, terminal can not be charged, bring great inconvenience to user.
Summary of the invention
The invention provides a kind of charging method and the device with the terminal of data exchanging function, cause terminal cannot realize the problem of charging with the USB interface short circuit solving terminal in prior art.
First aspect, embodiments provides a kind of charging method with the terminal of data exchanging function, comprising:
Whether the power pins detecting the general-purpose serial bus USB interface of described terminal receives charging signals;
If so, by described terminal switch be actuating equipment charging access module and control described terminal charge;
If not, then detect the magnitude of voltage of the identified pins of the USB interface of described terminal, and perform corresponding control.
Second aspect, the embodiment of the present invention additionally provides a kind of charging device with the terminal of data exchanging function, comprising:
Power pins detection module, whether the power pins for the general-purpose serial bus USB interface detecting described terminal receives charging signals;
Access module handover module, for when the power pins of the general-purpose serial bus USB interface described terminal being detected receives charging signals, by described terminal switch is actuating equipment charging access module and controls described terminal charge;
Identified pins detection module, for when the power pins of the general-purpose serial bus USB interface described terminal being detected does not receive charging signals, detects the magnitude of voltage of the identified pins of the USB interface of described terminal, and performs corresponding control.
A kind of charging method and device with the terminal of data exchanging function provided by the invention, whether charging signals is received by the power pins of the general-purpose serial bus USB interface detecting described terminal, when receiving charging signals, by described terminal switch being actuating equipment charging access module and controlling described terminal charge; When not receiving charging signals, then detect the magnitude of voltage of the identified pins of the USB interface of described terminal, and perform corresponding control.Whether the embodiment of the present invention is by receiving the Rule of judgment of charging signals as switching terminal access module using the power pins of the USB interface detecting the terminal obtained, not only achieve and the access module of the USB interface of terminal is switched, and the problem that the terminal that causes of the USB interface short circuit solving terminal in prior art cannot be charged.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, introduce doing one to the accompanying drawing used required in embodiment or description of the prior art simply below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The USB interface schematic diagram of the terminal that Fig. 1 provides for prior art;
A kind of flow chart with the terminal charging method of data exchanging function that Fig. 2 provides for the embodiment of the present invention one;
A kind of flow chart with the terminal charging method of data exchanging function that Fig. 3 provides for the embodiment of the present invention two;
A kind of schematic diagram with the terminal charging device of data exchanging function that Fig. 4 provides for the embodiment of the present invention three.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, hereinafter with reference to the accompanying drawing in the embodiment of the present invention, by execution mode, technical scheme of the present invention is described clearly and completely, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
From prior art, when inserting the USB interface short circuit of the USB interface of USB connecting line of terminal and/or terminal, cause the USB interface short circuit of terminal, then the power pins of terminal USB interface can export 5V voltage, causes terminal cannot realize charging.
A kind of flow chart with the terminal charging method of data exchanging function that Fig. 2 provides for the embodiment of the present invention one, the technical scheme of this embodiment be applicable to there is OTG function terminal according to the state of the power pins of USB interface, judge whether actuating equipment charging access module situation.Terminal can such as, for having arbitrarily the electronic equipment of OTG function, mobile phone, panel computer etc.The method can be performed by the charging device of the terminal with OTG function, and this device can adopt the mode of software and/or hardware to realize, and configuration performs in the terminal.As shown in Figure 2, this charging method with the terminal of data exchanging function comprises following operation:
Whether S110, the power pins of general-purpose serial bus USB interface detecting described terminal receive charging signals.If receive charging signals, then perform S120; If do not receive charging signals, then perform S130.
As foregoing, the USB interface of terminal has 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 has USB connecting line to insert, first terminal judges whether the power pins of its USB interface receives charging signals, and according to testing result, control terminal switch to be actuating equipment charging access module, or control terminal continues the magnitude of voltage of the identified pins detecting USB interface to carry out corresponding operating.
Whether this step is by receiving charging signals as the basis for estimation of forcing terminal to enter charged state using the power pins of the USB interface of terminal, when the power pins of the USB interface of terminal is when receiving charging signals, make terminal be in charging access module, terminal is charged.
S120, by described terminal switch be actuating equipment charging access module and control described terminal charge.
Above-mentioned steps can be specifically when the power pins of USB interface terminal being detected receives charging signals, is actuating equipment charging access module and control terminal charging by terminal switch.This addresses the problem the identified pins (ID) inserting the USB line of terminal or terminal USB interface and the situation causing the short circuit of terminal USB interface that terminal cannot be charged during grounding pin (GND) short circuit.
In this step, the USB interface of the USB line or terminal that no matter insert terminal is short circuit or normal, as long as detect that the power pins of the USB interface of terminal receives charging signals, then forces terminal switch to be equipment charge access module, charges to make terminal.
S130, detect the magnitude of voltage of the identified pins of the USB interface of described terminal, and perform corresponding control.
Above-mentioned steps can be specifically when the power pins of USB interface terminal being detected does not receive charging signals, the magnitude of voltage of the identified pins of the USB interface of sense terminals, and performs corresponding control according to the magnitude of voltage of the identified pins of terminal USB interface.
Whether the power pins of the general-purpose serial bus USB interface detecting described terminal is received the Rule of judgment of charging signals as switching terminal access module by the embodiment of the present invention, not only achieve and the access module of the USB interface of terminal is switched, and the identified pins short circuit solved due to the USB interface of USB connecting line and/or terminal USB interface in prior art, cause the short circuit of terminal USB interface and the problem that cannot charge of the terminal caused.
Embodiment two
A kind of flow chart with the terminal charging method of data exchanging function that Fig. 3 provides for the embodiment of the present invention two.The method can be performed by the charging device of the terminal with OTG function, and this device can adopt the mode of software and/or hardware to realize, and configuration performs in the terminal.As shown in Figure 3, this charging method with the terminal of data exchanging function comprises following operation:
Whether S201, the magnitude of voltage at power pins place detecting the general-purpose serial bus USB interface of described terminal are more than or equal to setting threshold value.
Above-mentioned steps can be specifically, when there being USB line to insert the USB interface of described terminal, first the magnitude of voltage at the power pins place of the USB interface of described terminal is detected, and described magnitude of voltage and predetermined threshold value are compared, judge whether described magnitude of voltage is more than or equal to setting threshold value.Such as described setting threshold value is 5V, does not do concrete restriction at this to described setting threshold value.
Setting threshold value whether is more than or equal to, for judging whether the USB interface of described terminal has power-supply device to access, and namely whether receives charging signals by the magnitude of voltage at the power pins place detecting the USB interface of described terminal in this step.This step can when the USB line of terminal access or the USB interface short circuit of terminal, and the access making terminal can also carry out power-supply device detects, and solves the problem of prior art.
If the magnitude of voltage at the power pins place of the general-purpose serial bus USB interface of the described terminal of S202 is more than or equal to setting threshold value, then determine to receive charging signals, and be actuating equipment charging access module by described terminal switch, control described terminal charge.
Concrete can be that, when terminal does not have other equipment external, the voltage at the power pins place of described terminal USB interface is zero.Magnitude of voltage when the power pins place of described terminal USB interface is more than or equal to setting threshold value, namely there is external power supply to terminal input voltage signal, now can control to be actuating equipment charging access module by terminal switch, then external power supply is that terminal is charged.Optionally, described setting threshold value can be 5V.
If the magnitude of voltage at the power pins place of the USB interface of the described terminal of S203 is less than setting threshold value, then whether the magnitude of voltage detecting the identified pins of the USB interface of described terminal is setting low level.If so, then S204 is performed; If not, then continue to perform S201, whether the magnitude of voltage namely continuing the power pins place of the USB interface detecting described terminal is more than or equal to setting threshold value.
Concrete, can be that the magnitude of voltage at the power pins place of the USB interface when terminal is when being less than setting threshold value, then determine terminal USB interface non-transformer equipment access, whether be that setting low level detects to the magnitude of voltage of the identified pins of the USB interface of described terminal, and judge whether terminal switches to execution data switched access pattern according to this.
S204, when detect obtain the identified pins of the USB interface of described terminal magnitude of voltage for setting low level time, by described terminal switch for performing data switched access pattern, and perform the exchanges data with external equipment.
When the identified pins of terminal USB interface is for setting low level, illustrate that the USB interface place of terminal has detected OTG equipment access, be so now after exchanges data access module by terminal switch, OTG detection, identification and access are carried out, to carry out the exchanges data with OTG equipment to the OTG equipment of access.
S205, control the power pins output voltage of the USB interface of described terminal.
Under exchanges data access module, when there is OTG equipment access at the USB interface place of terminal, the power pins controlling the USB interface of described terminal exports preset voltage value, supplies external OTG equipment, to realize the data communication of terminal and OTG equipment.Exemplary, described preset voltage value can be 5V, the concrete restriction not to preset voltage value.
A kind of charging method with the terminal of data exchanging function that the embodiment of the present invention two provides, when described terminal being detected, then determine to receive charging signals, terminal has power-supply device to access, be actuating equipment charging access module by described terminal switch, control described terminal charge.Whether the magnitude of voltage at the power pins place of the general-purpose serial bus USB interface of sense terminals is more than or equal to the Rule of judgment of setting threshold value as switching terminal access module by the present embodiment, not only achieve and the access module of the USB interface of terminal is switched, also solve due to the USB interface of USB connecting line that accesses terminal and/or the identified pins short circuit of described terminal USB interface in prior art, the problem that the terminal finally causing the identified pins short circuit of the USB interface of terminal to cause cannot be charged.
Embodiment three
A kind of schematic diagram with the terminal charging device of data exchanging function that Fig. 4 provides for the embodiment of the present invention three.This device can adopt the mode of software and/or hardware to perform the charging method with the terminal of OTG function described in above-described embodiment, and the configuration of this device performs in the terminal.
A kind of charging device with the terminal of data exchanging function that the present embodiment provides comprises: power pins detection module 310, access module handover module 320 and identified pins detection module 330.
Wherein, whether power pins detection module 310 receives charging signals for the power pins of the general-purpose serial bus USB interface detecting described terminal; Described terminal switch, for when the power pins of the general-purpose serial bus USB interface described terminal being detected receives charging signals, is actuating equipment charging access module and controls described terminal charge by access module handover module 320; Identified pins detection module 330, for when the power pins of the general-purpose serial bus USB interface described terminal being detected does not receive charging signals, detects the magnitude of voltage of the identified pins of the USB interface of described terminal, and performs corresponding control.
Alternatively described power pins detection module 310 specifically for: whether the magnitude of voltage detecting the power pins place of the general-purpose serial bus USB interface of described terminal is more than or equal to setting threshold value, if so, then determines to receive charging signals.Optionally, described setting threshold value can be 5V.
Described identified pins detection module 330 comprises alternatively: pin level detecting unit 331 and data access switch unit 332.
Wherein, pin level detecting unit 331 is for detecting whether the magnitude of voltage of the identified pins of the USB interface of described terminal is setting low level; Data access switch unit 332 for when the magnitude of voltage of identified pins of USB interface of described terminal being detected for setting low level, then by described terminal switch for performing data switched access pattern.
Described charging device also comprises alternatively: pin voltage output unit 333.
Wherein, pin voltage output unit 333 for described data access switch unit 332 by described terminal switch for after performing data switched access pattern, control the power pins output voltage of the USB interface of described terminal.
A kind of device with the terminal of data exchanging function that the embodiment of the present invention three provides, whether the power pins being detected the general-purpose serial bus USB interface of described terminal by power pins detection module receives charging signals, when receiving charging signals, described terminal switch is actuating equipment charging access module and controls described terminal charge by access module handover module; When not receiving charging signals, then detect the magnitude of voltage of the identified pins of the USB interface of described terminal, and perform corresponding control.Whether the power pins of the general-purpose serial bus USB interface detecting described terminal is received the Rule of judgment of charging signals as switching terminal access module by the present invention, not only achieve and the access module of the USB interface of terminal is switched, and the identified pins short circuit solved due to the USB interface of USB connecting line and/or terminal USB interface in prior art, cause the short circuit of terminal USB interface and the problem that cannot charge of the terminal caused.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (10)
1. there is a charging method for the terminal of data exchanging function, it is characterized in that, comprising:
Whether the power pins detecting the general-purpose serial bus USB interface of described terminal receives charging signals;
If so, by described terminal switch be actuating equipment charging access module and control described terminal charge;
If not, then detect the magnitude of voltage of the identified pins of the USB interface of described terminal, and perform corresponding control.
2. charging method according to claim 1, is characterized in that, whether the power pins detecting the general-purpose serial bus USB interface of described terminal receives charging signals comprises:
Whether the magnitude of voltage detecting the power pins place of the general-purpose serial bus USB interface of described terminal is more than or equal to setting threshold value, if so, then determines to receive charging signals.
3. charging method according to claim 2, is characterized in that, described setting threshold value is 5V.
4. charging method according to claim 1, is characterized in that, detects the magnitude of voltage of the identified pins of the USB interface of described terminal, and performs corresponding control and comprise:
Whether the magnitude of voltage detecting the identified pins of the USB interface of described terminal is setting low level;
If so, be then perform data switched access pattern by described terminal switch.
5. charging method according to claim 4, is characterized in that, by described terminal switch for after execution data switched access pattern, also comprises: the power pins output voltage controlling the USB interface of described terminal.
6. there is a charging device for the terminal of data exchanging function, it is characterized in that, comprising:
Power pins detection module, whether the power pins for the general-purpose serial bus USB interface detecting described terminal receives charging signals;
Access module handover module, for when the power pins of the general-purpose serial bus USB interface described terminal being detected receives charging signals, by described terminal switch is actuating equipment charging access module and controls described terminal charge;
Identified pins detection module, for when the power pins of the general-purpose serial bus USB interface described terminal being detected does not receive charging signals, detects the magnitude of voltage of the identified pins of the USB interface of described terminal, and performs corresponding control.
7. charging device according to claim 6, is characterized in that, described power pins detection module specifically for:
Whether the magnitude of voltage detecting the power pins place of the general-purpose serial bus USB interface of described terminal is more than or equal to setting threshold value, if so, then determines to receive charging signals.
8. charging device according to claim 7, is characterized in that, described setting threshold value is 5V.
9. charging device according to claim 6, is characterized in that, described identified pins detection module comprises:
Pin level detecting unit, for detecting whether the magnitude of voltage of the identified pins of the USB interface of described terminal is setting low level;
Data access switch unit, for when the magnitude of voltage of identified pins of USB interface of described terminal being detected for setting low level, then by described terminal switch for performing data switched access pattern.
10. charging device according to claim 9, it is characterized in that, described charging device also comprises: pin voltage output unit, after described terminal switch being execution data switched access pattern at described data access switch unit, control the power pins output voltage of the USB interface of described terminal.
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| CN201510528762.3A CN105071484B (en) | 2015-08-25 | 2015-08-25 | A kind of charging method and device of the terminal with data exchanging function |
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| CN201510528762.3A CN105071484B (en) | 2015-08-25 | 2015-08-25 | A kind of charging method and device of the terminal with data exchanging function |
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| 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 |
| CN111159083A (en) * | 2019-12-20 | 2020-05-15 | 惠州华阳通用电子有限公司 | USB master-slave mode switching method, system, storage medium and terminal |
| CN112986865A (en) * | 2021-04-13 | 2021-06-18 | 深圳维普创新科技有限公司 | Cable function detection method, circuit and detector |
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| CN111159083A (en) * | 2019-12-20 | 2020-05-15 | 惠州华阳通用电子有限公司 | USB master-slave mode switching method, system, storage medium and terminal |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |