CN104978300A - Mobile terminal as well as detecting method and device for connection of mobile terminal and external equipment - Google Patents
Mobile terminal as well as detecting method and device for connection of mobile terminal and external equipment Download PDFInfo
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- CN104978300A CN104978300A CN201510419355.9A CN201510419355A CN104978300A CN 104978300 A CN104978300 A CN 104978300A CN 201510419355 A CN201510419355 A CN 201510419355A CN 104978300 A CN104978300 A CN 104978300A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims description 20
- 230000001960 triggered effect Effects 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 8
- 230000007547 defect Effects 0.000 abstract description 5
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 10
- 238000010606 normalization Methods 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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Abstract
The invention relates to the technical field of mobile terminals, and provides a mobile terminal as well as a detecting method and a detecting device for connection of the mobile terminal and external equipment. The detecting method comprises the following steps of: when an identification pin in a USB interface of the mobile terminal is trigged, outputting an OTG identification signal to the external equipment, and judging whether communication between the mobile terminal and the external equipment is carried out or not within predetermined time; if the communication is carried out, identifying that OTG equipment is accessed into the USB interface and the communication between the mobile terminal and the OTG equipment is carried out; otherwise, stopping outputting the OTG identification signal and enabling an external adapter to charge the mobile terminal when external adaptive access is judged. By judging communication failure between the mobile terminal and the OTG equipment under a micro short circuit condition within predetermined time, the identification signal outputting is stopped to close an OTG detecting function, so that a charging function of the mobile terminal is recovered, and the defect that the USB interface of the mobile terminal cannot be charged during micro short circuit is avoided.
Description
Technical field
The present invention relates to technical field of mobile terminals, particularly relate to a kind of mobile terminal and the detection method that is connected with external unit and device.
Background technology
Current increasing mobile phone possesses OTG function, and under normal circumstances, mobile phone is all that therefore charge function and OTG function all can accurately identify by having come the identification and usb communication that identify pin to the detection of OTG equipment.But due to the factor of user environment, such as, at the environment of humidity or under holding corrosion-prone environment, USB interface there will be the phenomenon of micro-short circuit, now to supporting that the mobile phone of OTG can exist the fault that can not charge.Most current mobile phone is internal battery, so can not charge for user is a very serious problem.In sum, the defect that the USB interface that there is mobile terminal in prior art causes mobile terminal not charge when there is the phenomenon of micro-short circuit.
Summary of the invention
The detection method that the object of the present invention is to provide a kind of mobile terminal and be connected with external unit and device, be intended to solve the defect causing mobile terminal not charge when there is the phenomenon of micro-short circuit for the USB interface that there is mobile terminal in prior art.
The present invention is achieved in that the detection method that first aspect provides a kind of mobile terminal and is connected with external unit, and described detection method comprises the following steps:
A. when the identification pin in the USB interface detecting described mobile terminal is triggered, external device exports OTG identification signal, and judges whether communicate with external unit in the given time, be, then perform step B, no, then perform step C;
B. be identified as USB interface described in OTG equipment access, and communicate with described OTG equipment;
C. stop exporting OTG identification signal, and when judging external adapter access, external adapter is charged to mobile terminal.
In conjunction with first aspect, in the possible implementation of the first of first aspect, detect the step that the identification pin in the USB interface of described mobile terminal is triggered described in described steps A and be specially:
When detecting that no input electronegative potential is drawn in described identification, judge that described identification pin is triggered.
In conjunction with first aspect, in the possible implementation of the second of first aspect, external device described in described steps A sends OTG identification signal and judges whether be specially with the step that external unit carries out communicating in the given time:
External device output supply voltage, and judge whether in the given time to complete usb communication agreement with external unit.
In conjunction with first aspect, in the third possible implementation of first aspect, described in described step C, judge that the step that external adapter accesses is specially:
When positive differential signal pins and negative differential signal pin short circuit being detected, judge external adapter access.
The pick-up unit that second aspect present invention provides a kind of mobile terminal to be connected with external unit, described pick-up unit comprises detecting unit and control module;
When described detecting unit is triggered for the identification pin detected in the USB interface of described mobile terminal, to described control module output detections signal;
Described control module is used for external device and exports OTG identification signal, and judge whether communicate with external unit in the given time, when judged result is for being, be identified as USB interface described in OTG equipment access, and communicate with described OTG equipment, when judged result is no, stop exporting OTG identification signal, and when judging external adapter access, external adapter is charged to mobile terminal.
In conjunction with second aspect, in the possible implementation of the first of second aspect, detecting unit described in described steps A detects the process that the identification pin in the USB interface of described mobile terminal is triggered and is:
When described identification pin input electronegative potential being detected, judge that described identification pin is triggered.
In conjunction with second aspect, in the possible implementation of the second of second aspect, described control module external device sends OTG identification signal and whether judgement with the process that external unit carries out communicating is in the given time:
External device output supply voltage, and judge whether in the given time to complete usb communication agreement with external unit.
In conjunction with second aspect, in the third possible implementation of second aspect, when described control module is also for positive differential signal pins and negative differential signal pin short circuit being detected, judge external adapter access.
Third aspect present invention provides a kind of mobile terminal, comprises pick-up unit and USB interface that the mobile terminal described in above-mentioned second aspect is connected with external unit.
The detection method that the invention provides a kind of mobile terminal and be connected with external unit and device, by judging the communication failure under micro-short circuit situation and between OTG equipment in the given time, stop exporting identification signal to close OTG measuring ability, thus recover the charge function of mobile terminal, the defect cannot charged when avoiding the USB interface generation micro-short circuit of mobile terminal.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only 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.
Fig. 1 is the process flow diagram of the detection method that a kind of mobile terminal that an embodiment of the present invention provides is connected with external unit;
Fig. 2 is the structural representation of the pick-up unit that a kind of mobile terminal that the another kind of embodiment of the present invention provides is connected with external unit.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In order to technical scheme of the present invention is described, be described below by specific embodiment.
The detection method that an embodiment of the present invention provides a kind of mobile terminal to be connected with external unit, as shown in Figure 1, described detection method comprises the following steps:
Step S101. is when the identification pin in the USB interface detecting described mobile terminal is triggered, and external device exports OTG identification signal, and judges whether communicate with external unit in the given time, be, then perform step S102, no, then perform step S103.
In described step S101, the step that the identification pin in the USB interface of the described mobile terminal of described detection is triggered is specially:
When detecting that no input electronegative potential is drawn in described identification, judge that described identification pin is triggered.
External device described in described step S101 sends OTG identification signal and judges whether be specially with the step that external unit carries out communicating in the given time:
External device output supply voltage, and judge whether in the given time to complete usb communication agreement with external unit.
Concrete, when there is the situation of USB interface micro-short circuit, due to ID pin earth impedance 1.5M under normal circumstances, the resistance of micro-short circuit is between 100 to 10Kohm, the usual scope of resistance that circuit is identified as OTG is larger at 0 to 180K, therefore, now system can export 5v power supply and communicates with OTG equipment.When inserting charger because mobile terminal is as OTG main equipment, therefore cannot complete usb communication agreement with adapter, now system can judge that the equipment inserted is non-OTG equipment.
Step S102. is identified as USB interface described in OTG equipment access, and communicates with described OTG equipment.
Step S103. stops exporting OTG identification signal, and when judging external adapter access, external adapter is charged to mobile terminal.
In this step, concrete, close OTG equipment 5v power supply output enable, make whole system recover charging path.
In this step, concrete, the step of described judgement external adapter access is specially:
When positive differential signal pins and negative differential signal pin short circuit being detected, judge external adapter access.
Further, the information of voltage of external adapter that is connected with this mobile terminal of described acquisition for mobile terminal; The information of voltage received and normalization voltage range compare by described mobile terminal, if described information of voltage is in described normalization voltage range, then can identify described USB adapter is the USB adapter matched with described hand-held set, otherwise, identifying described adapter is not the USB adapter matched with described mobile terminal, when described adapter is not the USB adapter matched with described mobile terminal, charge again after input voltage being converted to normal voltage.
The pick-up unit that the another kind of embodiment of the present invention provides a kind of mobile terminal to be connected with external unit, described pick-up unit comprises detecting unit 201 and control module 202;
When described detecting unit 201 is triggered for the identification pin detected in the USB interface of described mobile terminal, to described control module 202 output detections signal;
Described control module 202 exports OTG identification signal for external device, and judge whether communicate with external unit in the given time, when judged result is for being, be identified as USB interface described in OTG equipment access, and communicate with described OTG equipment, when judged result is no, stop exporting OTG identification signal, and when judging external adapter access, external adapter is charged to mobile terminal.
Concrete, when there is the situation of USB interface micro-short circuit, due to ID pin earth impedance 1.5M under normal circumstances, micro-short resistance is between 100 to 10Kohm, the usual scope of resistance that circuit is identified as OTG is larger at 0 to 180K, therefore, now system can export 5v power supply and communicates with OTG equipment.When inserting charger because mobile terminal is as OTG main equipment, therefore cannot complete usb communication agreement with adapter, now system can judge that the equipment inserted is non-OTG equipment, by stopping exporting the charge function that OTG identification signal achieves mobile terminal.
Described detecting unit 201 detects the process that the identification pin in the USB interface of described mobile terminal is triggered:
When described identification pin input electronegative potential being detected, judge that described identification pin is triggered.
Described control module 202 external device sends OTG identification signal and judges:
External device output supply voltage, and judge whether in the given time to complete usb communication agreement with external unit.
External adapter access is judged when described control module 202 is also for positive differential signal pins and negative differential signal pin short circuit being detected.
Further, the control module in described mobile terminal obtains the information of voltage of the external adapter be connected with this mobile terminal; The information of voltage received and normalization voltage range compare by described mobile terminal, if described information of voltage is in described normalization voltage range, then can identify described USB adapter is the USB adapter matched with described hand-held set, otherwise, identifying described adapter is not the USB adapter matched with described mobile terminal, when described adapter is not the USB adapter matched with described mobile terminal, charge again after driving voltage changing module to convert input voltage to normal voltage.
The another kind of embodiment of the present invention provides a kind of mobile terminal, comprises pick-up unit and USB interface that above-mentioned mobile terminal is connected with external unit.
The detection method that the invention provides a kind of mobile terminal and be connected with external unit and device, by judging the communication failure under micro-short circuit situation and between OTG equipment in the given time, stop exporting identification signal to close OTG measuring ability, thus recover the charge function of mobile terminal, the defect cannot charged when avoiding the USB interface generation micro-short circuit of mobile terminal.
Those of ordinary skill in the art can recognize, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with the combination of electronic hardware or computer software and electronic hardware.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the system of foregoing description, device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that disclosed system, apparatus and method can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.
If described function using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; make some equivalent alternative or obvious modification without departing from the inventive concept of the premise; and performance or purposes identical, all should be considered as belonging to the scope of patent protection that the present invention is determined by submitted to claims.
Claims (9)
1. the detection method that is connected with external unit of mobile terminal, it is characterized in that, described detection method comprises the following steps:
A. when the identification pin in the USB interface detecting described mobile terminal is triggered, external device exports OTG identification signal, and judges whether communicate with external unit in the given time, be, then perform step B, no, then perform step C;
B. be identified as USB interface described in OTG equipment access, and communicate with described OTG equipment;
C. stop exporting OTG identification signal, and when judging external adapter access, external adapter is charged to mobile terminal.
2. detection method as claimed in claim 1, is characterized in that, detects the step that the identification pin in the USB interface of described mobile terminal is triggered and be specially described in described steps A:
When detecting that no input electronegative potential is drawn in described identification, judge that described identification pin is triggered.
3. detection method as claimed in claim 1, is characterized in that, external device described in described steps A sends OTG identification signal and judges whether be specially with the step that external unit carries out communicating in the given time:
External device output supply voltage, and judge whether in the given time to complete usb communication agreement with external unit.
4. detection method as claimed in claim 1, is characterized in that, judge that the step that external adapter accesses is specially described in described step C:
When positive differential signal pins and negative differential signal pin short circuit being detected, judge external adapter access.
5. the pick-up unit that is connected with external unit of mobile terminal, it is characterized in that, described pick-up unit comprises detecting unit and control module;
When described detecting unit is triggered for the identification pin detected in the USB interface of described mobile terminal, to described control module output detections signal;
Described control module is used for external device and exports OTG identification signal, and judge whether communicate with external unit in the given time, when judged result is for being, be identified as USB interface described in OTG equipment access, and communicate with described OTG equipment, when judged result is no, stop exporting OTG identification signal, and when judging external adapter access, external adapter is charged to mobile terminal.
6. pick-up unit as claimed in claim 5, is characterized in that, detecting unit described in described steps A detects the process that the identification pin in the USB interface of described mobile terminal is triggered and is:
When described identification pin input electronegative potential being detected, judge that described identification pin is triggered.
7. pick-up unit as claimed in claim 5, is characterized in that, described control module external device sends OTG identification signal and whether judgement with the process that external unit carries out communicating is in the given time:
External device output supply voltage, and judge whether in the given time to complete usb communication agreement with external unit.
8. pick-up unit as claimed in claim 5, is characterized in that, judges external adapter access when described control module is also for positive differential signal pins and negative differential signal pin short circuit being detected.
9. a mobile terminal, is characterized in that, comprises pick-up unit and USB interface that the mobile terminal described in above-mentioned 5 to 8 any one is connected with external unit.
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| CN201510419355.9A CN104978300B (en) | 2015-07-16 | 2015-07-16 | Mobile terminal and its detection method being connect with external equipment and device |
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| CN201510419355.9A CN104978300B (en) | 2015-07-16 | 2015-07-16 | Mobile terminal and its detection method being connect with external equipment and device |
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Cited By (12)
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| CN106412245A (en) * | 2016-09-06 | 2017-02-15 | 青岛海信移动通信技术股份有限公司 | Waterproof method for USB interface and mobile terminal |
| CN106532383A (en) * | 2016-10-31 | 2017-03-22 | 深圳市金立通信设备有限公司 | Compatible design method and circuit |
| CN106597143A (en) * | 2016-11-10 | 2017-04-26 | 青岛海信移动通信技术股份有限公司 | Test device and test method |
| CN106786876A (en) * | 2016-12-20 | 2017-05-31 | 宇龙计算机通信科技(深圳)有限公司 | A kind of terminal is filled protection circuit, terminal and terminal and fills protection system soon soon |
| CN106786960A (en) * | 2017-01-13 | 2017-05-31 | 广东欧珀移动通信有限公司 | Charge control method, device and terminal |
| CN106844265A (en) * | 2017-02-06 | 2017-06-13 | 维沃移动通信有限公司 | The control method and mobile terminal of a kind of general-purpose serial bus USB interface |
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| CN108780345A (en) * | 2016-03-09 | 2018-11-09 | 雷蛇(亚太)私人有限公司 | Computing device, power supply device, the method for controlling computing device and the method for controlling power supply device |
| CN108874708A (en) * | 2018-06-28 | 2018-11-23 | 努比亚技术有限公司 | OTG equipment, terminal charging method, mobile terminal and computer readable storage medium |
| CN113672438A (en) * | 2021-08-23 | 2021-11-19 | 紫光展讯通信(惠州)有限公司 | Method, device, communication system and storage medium for maintaining USB connection |
| CN115017073A (en) * | 2021-03-05 | 2022-09-06 | 龙芯中科技术股份有限公司 | Communication controller enabling method and device, electronic equipment and storage medium |
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| CN106532383A (en) * | 2016-10-31 | 2017-03-22 | 深圳市金立通信设备有限公司 | Compatible design method and circuit |
| CN106597143A (en) * | 2016-11-10 | 2017-04-26 | 青岛海信移动通信技术股份有限公司 | Test device and test method |
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| CN106844265B (en) * | 2017-02-06 | 2018-10-19 | 维沃移动通信有限公司 | A kind of control method and mobile terminal of general-purpose serial bus USB interface |
| CN106844265A (en) * | 2017-02-06 | 2017-06-13 | 维沃移动通信有限公司 | The control method and mobile terminal of a kind of general-purpose serial bus USB interface |
| CN108874708A (en) * | 2018-06-28 | 2018-11-23 | 努比亚技术有限公司 | OTG equipment, terminal charging method, mobile terminal and computer readable storage medium |
| CN115017073A (en) * | 2021-03-05 | 2022-09-06 | 龙芯中科技术股份有限公司 | Communication controller enabling method and device, electronic equipment and storage medium |
| CN115017073B (en) * | 2021-03-05 | 2023-08-29 | 龙芯中科技术股份有限公司 | Enabling method and device of communication controller, electronic equipment and storage medium |
| CN113672438A (en) * | 2021-08-23 | 2021-11-19 | 紫光展讯通信(惠州)有限公司 | Method, device, communication system and storage medium for maintaining USB connection |
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