WO2015113337A1 - 接口插接异常检测电路和方法 - Google Patents

接口插接异常检测电路和方法 Download PDF

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Publication number
WO2015113337A1
WO2015113337A1 PCT/CN2014/077046 CN2014077046W WO2015113337A1 WO 2015113337 A1 WO2015113337 A1 WO 2015113337A1 CN 2014077046 W CN2014077046 W CN 2014077046W WO 2015113337 A1 WO2015113337 A1 WO 2015113337A1
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WO
WIPO (PCT)
Prior art keywords
usb interface
power
interface
voltage
line
Prior art date
Application number
PCT/CN2014/077046
Other languages
English (en)
French (fr)
Inventor
张加亮
吴克伟
吴杰
袁幸伟
帅飞伍
Original Assignee
广东欧珀移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to EP18190800.5A priority Critical patent/EP3425410A3/en
Priority to EP14880785.2A priority patent/EP3101436B1/en
Priority to DK14880785.2T priority patent/DK3101436T3/da
Priority to US15/114,966 priority patent/US10082532B2/en
Priority to PL14880785T priority patent/PL3101436T3/pl
Priority to ES14880785T priority patent/ES2728166T3/es
Publication of WO2015113337A1 publication Critical patent/WO2015113337A1/zh
Priority to US16/110,656 priority patent/US10670668B2/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
    • G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
    • G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/24—Arrangements for testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2247—Verification or detection of system hardware configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the invention belongs to the field of mobile terminals, and in particular relates to an interface plug-in abnormality detecting circuit and method.
  • the Internet and mobile communication networks have provided a huge number of functional applications.
  • the user can not only use the mobile terminal for traditional applications, for example, using a smart phone to answer or make a call; at the same time, the user can also use the mobile terminal to perform web browsing, image transmission, games, and the like.
  • the frequency of using the mobile terminal increases, the power of the mobile terminal battery is consumed a lot, and the battery needs to be charged frequently; due to the accelerated pace of life, especially the sudden and urgent, more and more users want to be able to The battery of the mobile terminal is charged with a large current.
  • the mobile terminal needs to be charged frequently. If the USB interface is plugged abnormally and the charging is abnormal, it is easy to cause a security accident, and the USB interface, the mobile terminal, and the charging adapter may be damaged, and the battery may be damaged. Fire. Therefore, when the USB interface is plugged in, it is necessary to detect whether there is an abnormality in the USB interface.
  • the present invention provides an interface plug abnormality detecting circuit, including a power supply circuit, and further includes:
  • a first USB interface comprising a first power line and a first signal line, wherein a power end of the first power line is connected to the power circuit;
  • a second USB interface including a second power line and a second signal line, wherein the second power line and the second signal line are short-circuited; wherein the second USB interface passes through the first USB interface Plugging the second signal line with the first signal line; the first power line is configured to: receive a power signal output by the power circuit, and send the received power signal to the first USB Outputting the second power line in the second USB interface of the interface;
  • the first voltage collecting end is connected to the power end of the first power line of the first USB interface
  • the second voltage collecting end is connected to the signal end of the first signal line of the first USB interface
  • the present invention provides an interface insertion anomaly detection method, which is applied to a controller, and a first The USB interface, the second USB interface, and the interface of the power circuit are plugged into the abnormality detecting circuit, when the first The first signal line and the second signal line are connected when the USB interface is plugged into the second USB interface;
  • the interface plugging abnormality detecting method includes:
  • the power circuit When the first USB interface is plugged into the second USB interface, the power circuit is to the first The first power line of the USB interface outputs a power signal, and the first USB interface outputs the power signal to the second power line of the second USB interface through the first power line;
  • the controller detects a voltage of the first power line in the first USB interface, and detects the first
  • the voltage of the first signal line in the USB interface calculates a voltage difference between the voltage of the first power line and the voltage of the first signal line, and determines whether the interface is abnormal according to the voltage difference.
  • the beneficial effects of the present invention when the first USB interface is plugged into the second USB interface, as long as the first signal line of the first USB interface is connected to the second signal line of the second USB interface (not disconnected), The voltage of the first signal line of the first USB interface is approximately equal to the voltage of the second signal line of the two USB interfaces; in addition, since the second power line and the second signal line are short-circuited,
  • the power circuit outputs a power signal to the second power line through the first power line
  • the power of the first signal line acquired by the controller is the voltage of the second power line, so that the voltage difference calculated by the controller (the first) a voltage difference between a voltage of the power line and a voltage of the first signal line) is also: a voltage of the first power line in the first USB interface and the second power line in the second USB interface The voltage difference of the voltage; and further determining whether the first power line and the second power line are properly connected according to the calculated voltage difference, thereby determining whether the battery of the mobile terminal can be started through the first USB interface and
  • FIG. 1 is a circuit diagram of an interface insertion abnormality detecting circuit according to an embodiment of the present invention
  • FIG. 2 is a first flowchart of a method for detecting an abnormality of an interface according to an embodiment of the present invention
  • FIG. 3 is a second flowchart of an interface insertion abnormality detecting method according to an embodiment of the present invention.
  • FIG. 4 is a third flowchart of an interface insertion abnormality detecting method according to an embodiment of the present invention.
  • the charging adapter in the embodiment of the present invention includes: a power adapter, a charger, A terminal that can output a power signal to charge a battery cell (a battery cell of a mobile terminal) such as an IPAD or a smartphone.
  • first USB interface “first” in “first USB interface”, “first power line”, “first ground line” and “first signal line” are all referred to as “second USB interface”, The “second” in the “second power line”, the “second ground line”, and the “second signal line” are also referred to.
  • the charging adapter when the charging adapter is used to charge the mobile terminal, it is necessary to detect whether the first USB interface 1 and the second USB interface 2 are plugged in abnormally, in particular, detecting the first power line and the first in the first USB interface 1. Whether the second power line in the second USB interface 2 is well connected. If the plug is abnormal, the charging is not performed; the plugging is normal, and in particular, the first power cable in the first USB interface 1 and the second power cable in the second USB interface 2 are well connected, and the first USB interface is ensured.
  • the first ground line in 1 is well connected to the second ground line in the second USB interface 2 for charging, especially for charging large currents (3A and above).
  • FIG. 1 shows a specific circuit of an interface plug-in abnormality detecting circuit according to an embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the interface insertion abnormality detecting circuit includes the power supply circuit 4, and further includes:
  • a first USB interface 1 comprising a first power line and a first signal line, the power end of the first power line is connected to the power circuit 4;
  • a second USB interface 2 comprising a second power line and a second signal line, wherein the second power line and the second signal line are short-circuited; wherein the second USB interface 2 passes through the first USB
  • the plugging of the interface 1 connects the second signal line to the first signal line;
  • the first power line is configured to: receive a power signal output by the power circuit 4, and send the received power signal to the device The second power line output in the second USB interface 2 plugged in by the first USB interface 1;
  • the controller 3 has a first voltage collecting end connected to the power end of the first power line of the first USB interface 1 and a second voltage collecting end connected to the signal end of the first signal line of the first USB interface 1;
  • the controller 3 is configured to acquire, by the plugging of the first USB interface 1 and the second USB interface 2, a voltage of a first power line and a voltage of the first signal line in the first USB interface 1 And calculating a voltage difference between the voltage of the first power line and the voltage of the first signal line to determine whether the interface is abnormal according to the voltage difference.
  • the power circuit 4 starts to pass through the first USB interface 1.
  • a power line outputs a power signal to the second power line of the second USB interface 2.
  • the signal line Since the signal line transmits a signal, it is transmitted with a small current, when the first USB interface 1 and the second When the USB interface 2 is plugged in, as long as the first signal line of the first USB interface 1 and the second signal line of the second USB interface 2 are connected, even the first signal line of the first USB interface 1 and the second USB interface 2 The connection of the second signal line is not good enough. We can all think that the voltage of the first signal line of the first USB interface 1 and the voltage of the second signal line of the two USB interfaces are approximately equal.
  • the second power line and the second signal line in the second USB interface 2 are short-circuited, and the voltage of the first signal line acquired by the controller 3 is also the second USB interface 2
  • the voltage of the second power line; and the voltage difference calculated by the controller 3 (the voltage difference between the voltage of the first power line and the voltage of the first signal line) is also: the first USB interface 1 a voltage difference between a voltage of the first power line and a voltage of the second power line of the second USB interface 2.
  • the controller 3 can determine, according to the voltage difference between the voltage of the first power line and the voltage of the first signal line, the first power line in the first USB interface 1 and the second USB interface 2 Whether the second power line is well connected; specifically, if the voltage difference between the voltage of the first power line and the voltage of the first signal line is less than or equal to a preset voltage threshold, representing the first one in the first USB interface 1
  • the power line is well connected to the second power line of the second USB interface 2, and the battery of the mobile terminal can be charged; if the voltage of the first power line is different from the voltage of the first signal line If the first power line in the first USB interface 1 is not well connected to the second power line in the second USB interface 2, the battery of the mobile terminal cannot be charged.
  • the controller 3 sends a stop detection command to the power circuit 4 to control the power circuit 4 to stop
  • the power line of the first USB interface 1 outputs a power signal.
  • the preset voltage threshold is set according to at least the following conditions, including: the first power source calculated when the first power line of the first USB interface 1 and the power line of the second USB interface 2 are well connected. The voltage difference between the voltage of the line and the voltage of the first signal line, and the current that the power supply circuit 4 outputs to the second power line through the first power line when the abnormality is detected.
  • the controller 3 acquires the first USB interface in real time. Calculating the voltage difference between the voltage of the first power line and the voltage of the first signal line in real time by calculating the voltage of the first power line and the voltage of the first signal line, and determining the interface insertion according to the voltage difference in real time. Whether the connection is abnormal, if there is an abnormality, the controller 3 can send a stop detection command to the power supply circuit 4 in time to control the power supply circuit 4 to stop outputting the power supply signal to the power line of the first USB interface 1.
  • the interface plug abnormality detecting circuit further includes:
  • a warning indicating circuit 5 whose controlled end is connected to the control end of the controller 3, when the voltage of the first power line in the first USB interface 1 and the voltage of the first signal line in the first USB interface 1 When the voltage difference is greater than the preset voltage threshold, the prompt command sent by the controller 3 is received, and a warning prompt is issued.
  • the voltage of the first power line in the first USB interface 1 and the first one are not properly inserted when the first power line in the first USB interface 1 and the second power line in the second USB interface are not properly plugged in.
  • the voltage difference of the voltage of the first signal line in the USB interface 1 may be greater than a preset voltage threshold; thus, the controller 3 turns off the output of the power signal to the first power line in the first USB interface 1 at the control power supply circuit 4
  • a prompt command is sent to the warning prompt circuit 5, and then the warning circuit 5 issues a warning prompt.
  • the manner in which the warning prompt circuit 5 issues a warning prompt includes: prompting a warning by controlling the lighting or flashing of the LED light, and/or prompting by prompting the speaker to sound a warning prompt.
  • the USB plug included in the charging adapter needs to be plugged into the USB socket included in the mobile terminal, and the interface plugging abnormality detecting circuit detects the insertion of the USB plug and the USB socket. When the connection is good, the charging of the battery cells of the mobile terminal is performed.
  • the first USB interface 1 is a USB socket, and the power circuit 4, the first USB interface 1 and the controller 3 are included in a mobile terminal;
  • the second USB interface 2 is a USB plug, and the second USB interface 2 is included in a charging adapter.
  • the first USB interface 1 is a USB plug, and the power circuit 4, the first USB interface 1 and the controller 3 are included in a charging adapter;
  • the second USB interface 2 is a USB socket, and the second USB interface 2 is included in the mobile terminal.
  • the number of the first power lines included in the first USB interface 1 is P, and P is greater than or equal to 2;
  • the first USB interface 1 further includes Q first ground lines, and the Q is greater than or equal to 2.
  • the existing mobile terminal is charged by the MICRO USB interface because of the MICRO
  • the USB interface only contains: has a power cord and has a ground wire, so the existing MICRO
  • the USB interface can only charge one charging circuit formed by only one power supply path and one ground path, so that only the charging current of 3 amps (A) can be supported at most, so the charging speed is slow and time is wasted.
  • the first USB interface 1 provided by the embodiment of the present invention has P first power lines and Q first ground lines, and if the second power line included in the second USB interface 2 is at least If there are at least two second ground lines included in the second USB interface 2, at least two charging circuits may be formed when the first USB interface 1 is plugged into the second USB interface 2, Thereby capable of withstanding a charging current of at least 3A; in addition, if the second USB interface 2 is a normal MICRO The USB interface can also be compatible with the MICRO USB interface for charging.
  • the number of the second power lines included in the second USB interface 2 is M, and the M is greater than or equal to 2;
  • the second USB interface 2 further includes N second ground lines, and the N is greater than or equal to 2.
  • the second USB interface 2 provided by the embodiment of the present invention has M second power lines and N second ground lines, if the first power line included in the first USB interface 1 is also at least two And if the first USB interface 1 includes at least two of the first ground lines, when the first USB interface 1 and the second USB interface 2 are plugged in, at least two charging circuits can be formed, thereby enabling Withstand a charging current of at least 3A; in addition, if the first USB interface 1 is a normal MICRO The USB interface can also be compatible with the MICRO USB interface for charging.
  • the P, the M, the Q, and the N are all equal;
  • the first power cable of the first USB interface 1 is made of chrome bronze C18400 or phosphor bronze C7025
  • the first ground interface of the first USB interface 1 is made of chrome bronze C18400 or phosphor bronze C7025.
  • the second power cable included in the second USB interface 2 is made of chrome bronze C18400 or phosphor bronze C7025
  • the second ground wire 2 includes a second ground wire made of chrome bronze C18400 or phosphor bronze C7025.
  • the power cable and the ground wire of the USB interface are all made of metal copper foil with a conductivity of less than 20%, and the first power cable and the first ground wire and the second USB included in the first USB interface 1 provided in this embodiment are provided.
  • the second power line and the second ground line included in the interface 2 are made of phosphor bronze C7025 having a conductivity of 50%, thereby adopting at least two charging circuits (including: at least two first power lines, at least The charging current can be further increased in the case where the two first ground lines, the at least two second power lines, and the at least two second ground lines perform charging of the cells of the mobile terminal. More preferably, the first power line and the first ground line included in the first USB interface 1 and the second power line and the second ground line included in the second USB interface 2 are electrically conductive. Made of 70% chrome bronze C18400, which can further increase the charging current.
  • FIG. 2 shows a first specific process of the interface plug abnormality detecting method provided by the embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the interface insertion abnormality detecting method provided by the embodiment of the present invention is applied to an interface plug abnormality detecting circuit including a controller, a first USB interface, a second USB interface, and a power supply circuit 4, when the first USB interface is The first signal line and the second signal line are connected when the second USB interface is plugged in;
  • the interface plugging abnormality detecting method includes:
  • the power circuit 4 When the first USB interface is plugged into the second USB interface, the power circuit 4 is directed to the first The first power line of the USB interface outputs a power signal, and the first USB interface outputs the power signal to the second power line of the second USB interface through the first power line;
  • the controller detects a voltage of the first power line in the first USB interface, and detects the first
  • the voltage of the first signal line in the USB interface calculates a voltage difference between the voltage of the first power line and the voltage of the first signal line, and determines whether the interface is abnormal according to the voltage difference.
  • the charging terminal is used to charge the mobile terminal, the user inserts the first USB interface with the second USB interface; and further, as long as the first signal line and the second signal line are not disconnected (ie connected), we can think of the voltage of the first signal line of the first USB interface with two The voltages of the second signal lines of the USB interface are approximately equal.
  • the controller receives the voltage of the first power line and the voltage of the first signal line in the first USB interface, due to the second power line and the first in the second USB interface
  • the two signal lines are short-circuited, and the voltage of the first signal line obtained by the controller is also the voltage of the second power line in the second USB interface; and the voltage difference calculated by the controller
  • the voltage difference between the voltage of the first power line and the voltage of the first signal line is also: the voltage of the first power line in the first USB interface and the second power line in the second USB interface The voltage difference of the voltage.
  • the controller may determine, according to the calculated voltage difference between the voltage of the first power line and the voltage of the first signal line, the first power line and the second USB interface in the first USB interface. Whether the insertion of the second power line is abnormal, so as to determine whether the plugging of the first USB interface and the second USB interface is abnormal.
  • FIG. 2 shows a second specific flow of the interface plug abnormality detecting method provided by the embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the interface insertion abnormality detecting method further includes:
  • the controller controls the warning prompt circuit to issue a warning prompt.
  • Sending a stop detection command to the power supply circuit the power supply circuit stops outputting a power supply signal to a power line of the first USB interface.
  • the USB interface is caused to prevent the plugging abnormality (the first USB interface and the first The damage of the second USB interface), once the voltage difference between the voltage of the first power line in the first USB interface and the voltage of the first signal line in the first USB interface is greater than a preset voltage threshold, the controller stops the power circuit The power signal outputted to the power line of the first USB interface; at the same time, the controller controls the warning prompt circuit to issue a warning prompt.
  • FIG. 3 shows a third specific flow of the interface insertion abnormality detecting method provided by the embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the interface plugging abnormality detecting method further includes:
  • the controller After the preset period of time, the controller sends a detection command to the power circuit to output a power signal to the power line of the first USB interface.
  • the controller sends a detection instruction to the power circuit every time a predetermined period of time elapses; and further, the power circuit is directed to the first USB interface
  • the power line outputs a power signal
  • the controller reacquires the voltage of the first power line in the first USB interface and the voltage of the second power line in the second USB interface, and calculates a voltage difference, and calculates the The voltage difference re-determines whether the plugging of the first power line of the first USB interface and the second power line of the second USB interface is good.

Abstract

提供了适用于移动终端领域的接口插接异常检测电路和方法。所述接口插接异常检测电路包括电源电路（4）；还包括：第一USB接口（1），其包括第一电源线和第一信号线，所述第一电源线的电源端连接所述电源电路（4）；第二USB接口（2），包括第二电源线和第二信号线，所述第二电源线和所述第二信号线短路连接；所述第二USB接口（2）通过与所述第一USB接口（1）的插接将所述第二信号线与所述第一信号线相连；控制器（3），其第一电压采集端和第二电压采集端分别与第一电源线的电源端和第一信号线的信号端对应连接；从而控制器（3）根据计算出的电压差可以判断第一电源线与第二电源线是否插接良好，进而判断出是否可以通过第一USB接口（1）和第二USB接口（2）对移动终端的电芯开始充电或继续充电。

Description

接口插接异常检测电路和方法 技术领域
本发明属于移动终端领域，尤其涉及接口插接异常检测电路和方法。
背景技术
随着时代的进步，互联网和移动通信网提供了海量的功能应用。用户不但可以使用移动终端进行传统应用，例如：使用智能手机接听或拨打电话；同时，用户不但可以还可以使用移动终端进行网页浏览、图片传输，游戏等。
使用移动终端处理事情的同时，由于使用移动终端的频率增加，会大量消耗移动终端电芯的电量，从而需要经常充电；由于生活节奏的加快，尤其是突发急事越来越多，用户希望能够对移动终端的电芯进行大电流充电。
伴随着移动终端的使用频率增加，移动终端需要经常充电，如果USB接口插接异常而导致充电异常，则容易引发安全事故，轻则损坏USB接口、移动终端中以及充电适配器损坏，重则可能引起火灾。因此需要在USB接口插接时，对USB接口插接是否存在异常进行检测。
 技术问题
本发明的目的在于提供一种接口插接异常检测电路和方法，以在USB接口插接时，对USB接口插接是否存在异常进行检测。
 技术解决方案
一方面，本发明提供一种接口插接异常检测电路，包括电源电路，还包括：
第一USB接口，其包括第一电源线和第一信号线，所述第一电源线的电源端连接所述电源电路；
第二USB接口，其包括第二电源线和第二信号线，所述第二电源线和所述第二信号线短路连接；其中，所述第二USB接口通过与所述第一USB接口的插接将所述第二信号线与所述第一信号线相连；所述第一电源线用于：接收所述电源电路输出的电源信号，将接收到的电源信号向与所述第一USB接口插接的所述第二USB接口中的所述第二电源线输出；
控制器，其第一电压采集端连接所述第一USB接口中第一电源线的电源端，其第二电压采集端连接所述第一USB接口中第一信号线的信号端；所述控制器用于通过所述第一USB接口与所述第二USB接口的插接获取所述第一USB接口中第一电源线的电压和所述第一信号线的电压，计算出所述第一电源线的电压与所述第一信号线的电压的电压差，以根据所述电压差确定接口插接是否异常。
一方面，本发明提供一种接口插接异常检测方法，应用于包括控制器、第一 USB接口、第二USB接口以及电源电路的接口插接异常检测电路，当所述第一 USB接口与所述第二USB接口插接时所述第一信号线和所述第二信号线相连；所述接口插接异常检测方法包括：
将所述第二USB接口中的第二电源线和所述第二USB接口中的第二信号线短接；
当所述第一USB接口与所述第二USB接口插接时，所述电源电路向所述第一 USB接口的第一电源线输出电源信号，以所述第一USB接口通过第一电源线向所述第二USB接口的第二电源线输出所述电源信号；
所述控制器检测所述第一USB接口中第一电源线的电压，同时检测所述第一 USB接口中第一信号线的电压，计算所述第一电源线的电压与所述第一信号线的电压的电压差，根据所述电压差确定接口插接是否异常。
 有益效果
本发明的有益效果：当第一USB接口与第二USB接口插接时，只要第一USB接口的第一信号线与第二USB接口的第二信号线是连接的（不是断开的），则第一USB接口的第一信号线的电压与二USB接口的第二信号线的电压是近似相等的；另外由于所述第二电源线和所述第二信号线是短路连接的，在当电源电路通过第一电源线向第二电源线输出电源信号时，控制器获取到的所述第一信号线的电也即为第二电源线的电压，从而控制器计算出的电压差（第一电源线的电压与所述第一信号线的电压的电压差）也为：所述第一USB接口中第一电源线的电压与所述第二USB接口中的所述第二电源线的电压的电压差；进而根据计算出的电压差可以判断第一电源线与第二电源线是否插接良好，进而判断出是否可以通过第一USB接口和第二USB接口对移动终端的电芯开始充电或继续充电。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的接口插接异常检测电路的电路图；
图2是本发明实施例提供的接口插接异常检测方法的第一种流程图；
图3是本发明实施例提供的接口插接异常检测方法的第二种流程图；
图4是本发明实施例提供的接口插接异常检测方法的第三种流程图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。为了说明本发明所述的技术方案，下面通过具体实施例来进行说明。
需要说明的是，本发明实施例中的充电适配器包括：电源适配器、充电器、 IPAD、智能手机等能够输出电源信号以对电芯（移动终端的电芯）进行充电的终端。
需要说明的是，“第一USB接口”、“第一电源线”、“第一地线”以及“第一信号线”中的“第一”均为代指；“第二USB接口”、“第二电源线”、“第二地线”以及“第二信号线”中的“第二”也均为代指。
在本发明实施例中，通过充电适配器向移动终端充电时，需要检测第一USB接口1和第二USB接口2是否插接异常，尤其是检测第一USB接口1中的第一电源线与第二USB接口2中的第二电源线是否良好连接。如果插接异常，则不进行充电；待插接正常，尤其保证第一USB接口1中的第一电源线与第二USB接口2中的第二电源线是良好连接的，保证第一USB接口1中的第一地线与第二USB接口2中的第二地线是良好连接的，才能进行充电，尤其是进行大电流（3A及以上）充电。
图1示出了本发明实施例提供的接口插接异常检测电路的具体电路，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
本发明实施例提供的接口插接异常检测电路，包括电源电路4，还包括：
第一USB接口1，其包括第一电源线和第一信号线，所述第一电源线的电源端连接所述电源电路4；
第二USB接口2，其包括第二电源线和第二信号线，所述第二电源线和所述第二信号线短路连接；其中，所述第二USB接口2通过与所述第一USB接口1的插接将所述第二信号线与所述第一信号线相连；所述第一电源线用于：接收所述电源电路4输出的电源信号，将接收到的电源信号向与所述第一USB接口1插接的所述第二USB接口2中的所述第二电源线输出；
控制器3，其第一电压采集端连接所述第一USB接口1中第一电源线的电源端，其第二电压采集端连接所述第一USB接口1中第一信号线的信号端；所述控制器3用于通过所述第一USB接口1与所述第二USB接口2的插接获取所述第一USB接口1中第一电源线的电压和所述第一信号线的电压，计算出所述第一电源线的电压与所述第一信号线的电压的电压差，以根据所述电压差确定接口插接是否异常。
在本实施例中，如若使用充电适配器对移动终端进行充电，在待用户将所述第一USB接口1与第二USB接口2插接之后，电源电路4开始通过第一USB接口1中的第一电源线向第二USB接口2中的第二电源线输出电源信号。
由于信号线在传输信号时，是采用小电流传输的，当第一USB接口1与第二 USB接口2插接时，只要第一USB接口1的第一信号线与第二USB接口2的第二信号线是连接的，即使第一USB接口1的第一信号线与第二USB接口2的第二信号线的连接不够良好，我们都可以认为第一USB接口1的第一信号线的电压与二USB接口的第二信号线的电压是近似相等的。
进而，控制器3从第一电压采集端获取到的所述第一USB接口1中第一电源线的电压，和从第二电压采集端获取到的所述第一信号线的电压；由于所述第二USB接口2中的所述第二电源线和所述第二信号线是短路连接的，进而控制器3获取到的所述第一信号线的电压也为所述第二USB接口2中的所述第二电源线的电压；进而控制器3计算出的电压差（第一电源线的电压与所述第一信号线的电压的电压差）也为：所述第一USB接口1中第一电源线的电压与所述第二USB接口2中的所述第二电源线的电压的电压差。
进而，控制器3可以根据第一电源线的电压与所述第一信号线的电压的电压差，判断所述第一USB接口1中的第一电源线与所述第二USB接口2中的第二电源线是否良好连接；具体地，如果第一电源线的电压与所述第一信号线的电压的电压差小于或等于预设电压阈值，代表所述第一USB接口1中的第一电源线与所述第二USB接口2中的第二电源线是良好连接的，则可以对移动终端的电芯充电；如果第一电源线的电压与所述第一信号线的电压的电压差大于预设电压阈值，代表所述第一USB接口1中的第一电源线与所述第二USB接口2中的第二电源线不是良好连接的，则不能对移动终端的电芯充电。优选地，如果第一电源线的电压与所述第一信号线的电压的电压差大于预设电压阈值，控制器3向所述电源电路4发送停止检测指令，以控制电源电路4停止向所述第一USB接口1的电源线输出电源信号。
需说明的是，所述预设电压阈值至少根据以下条件设定，包括：第一USB接口1中第一电源线与第二USB接口2中电源线良好连接时计算出的所述第一电源线的电压与所述第一信号线的电压的电压差，以及插接异常检测时电源电路4通过第一电源线向第二电源线输出的电流等。
优选的是，即使在一开始第一USB接口1与第二USB接口2是良好的而开始对移动中端中的电芯进行充电后，还是控制器3还是实时分别获取所述第一USB接口1中第一电源线的电压和所述第一信号线的电压，实时计算出第一电源线的电压与所述第一信号线的电压的电压差，以实时根据所述电压差确定接口插接是否异常，如果存在异常，控制器3能够及时向所述电源电路4发送停止检测指令，以控制电源电路4停止向所述第一USB接口1的电源线输出电源信号。
在本发明的另一实施例中，所述接口插接异常检测电路还包括：
警告提示电路5，其受控端与所述控制器3的控制端连接，当所述第一USB接口1中第一电源线的电压与所述第一USB接口1中第一信号线的电压的电压差大于预设电压阈值时，接收所述控制器3发送的提示指令，发出警告提示。
为了在第一USB接口1中的第一电源线与第二USB接口2种的第二电源线未良好插接时，所述第一USB接口1中第一电源线的电压与所述第一USB接口1中第一信号线的电压的电压差会大于预设电压阈值；从而，控制器3在控制电源电路4断开向所述第一USB接口1中的第一电源线输出电源信号的同时，向警告提示电路5发送提示指令，继而警告提示电路5发出警告提示。优选的是，所述警告提示电路5发出警告提示的方式包括：通过控制LED灯的点亮或闪亮以进行警告提示，和/或通过控制扬声器发声以进行警告提示等等提示方式。
另需说明的是，如果需要使用充电适配器对移动终端充电时，则需将充电适配器包括的USB插头插接移动终端包括的USB插座，待接口插接异常检测电路检测USB插头与USB插座的插接良好时，进行对移动终端的电芯的充电。
在本发明另一实施例中，所述第一USB接口1为USB插座，所述电源电路4、所述第一USB接口1以及所述控制器3包含于移动终端；
所述第二USB接口2为USB插头，所述第二USB接口2包含于充电适配器。
这样，可以通过移动终端对第一USB接口1中的第一电源线与第二USB接口2中的第二电源线是否良好连接进行检测。
在本发明另一实施例中，所述第一USB接口1为USB插头，所述电源电路4、所述第一USB接口1以及所述控制器3包含于充电适配器；
所述第二USB接口2为USB插座，所述第二USB接口2包含于移动终端。
这样，可以通过充电适配器对第一USB接口1中的第一电源线与第二USB接口2中的第二电源线是否良好连接进行检测。
在本发明另一实施例中，所述第一USB接口1包含的所述第一电源线的个数为P个，P大于或等于2；
所述第一USB接口1还包含有Q个第一地线，所述Q大于或等于2。
需说明的是，现有的移动终端在采用MICRO USB接口进行充电时，由于该MICRO USB接口仅包含：具有一个电源线、具有一个地线，因此现有的MICRO USB接口只能通过仅包括一条电源通路和一条地通路而形成的一路充电回路的充电，从而只能最大支持3安培（A）的充电电流，因此，充电速度慢，浪费时间。
在此基础上，本发明实施例提供的第一USB接口1具有P个第一电源线和有Q个第一地线，如果所述第二USB接口2包含的所述第二电源线也至少为两个，且如果所述第二USB接口2包含的所述第二地线也至少为两个，当第一USB接口1与第二USB接口2插接时可以形成至少两个充电回路，从而能够承受至少3A以上的充电电流；另外，如果第二USB接口2为普通的MICRO USB接口，也可以兼容该MICRO USB接口进行充电。
在本发明另一实施例中，所述第二USB接口2包含的所述第二电源线的个数为M个，所述M大于或等于2；
所述第二USB接口2还包含有N个第二地线，所述N大于或等于2。
同理，本发明实施例提供的第二USB接口2具有M个第二电源线和有N个第二地线，如果所述第一USB接口1包含的所述第一电源线也至少为两个，且如果所述第一USB接口1包含的所述第一地线也至少为两个，当第一USB接口1与第二USB接口2插接时可以形成至少两个充电回路，从而能够承受至少3A以上的充电电流；另外，如果第一USB接口1为普通的MICRO USB接口，也可以兼容该MICRO USB接口进行充电。
在本发明另一实施例中，所述P、所述M、所述Q以及所述N均相等；
所述第一USB接口1包含的第一电源线采用铬青铜C18400或磷青铜C7025制成，所述第一USB接口1包含的第一地线采用铬青铜C18400或磷青铜C7025制成，所述第二USB接口2包含的第二电源线采用铬青铜C18400或磷青铜C7025制成，所述第二USB接口2包含的第二地线采用铬青铜C18400或磷青铜C7025制成。
值得说明的是，现有MICRO USB接口的电源线和地线均采用导电率不到20%的金属铜箔制成，而本实施例提供的第一USB接口1所包含的第一电源线和第一地线、第二USB接口2所包含的第二电源线和第二地线均采用导电率能够达到50%的磷青铜C7025制成，从而，在采用至少两个充电回路（包括：至少两个第一电源线、至少两个第一地线、至少两个第二电源线以及至少两个第二地线）进行对移动终端的电芯充电的情况下能够进一步提高充电电流。更优的是，本实施例提供的第一USB接口1所包含的第一电源线和第一地线、第二USB接口2所包含的第二电源线和第二地线均采用导电率能够达到70%的铬青铜C18400制成，能更进一步地提高充电电流。
图2示出了本发明实施例提供的接口插接异常检测方法的第一种具体流程，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
需要说明的是，本发明实施例提供的接口插接异常检测方法与本发明实施例提供的接口插接异常检测电路相互适用。
本发明实施例提供的接口插接异常检测方法，应用于包括控制器、第一USB接口、第二USB接口以及电源电路4的接口插接异常检测电路，当所述第一USB接口与所述第二USB接口插接时所述第一信号线和所述第二信号线相连；所述接口插接异常检测方法包括：
将所述第二USB接口中的第二电源线和所述第二USB接口中的第二信号线短接；
当所述第一USB接口与所述第二USB接口插接时，所述电源电路4向所述第一 USB接口的第一电源线输出电源信号，以所述第一USB接口通过第一电源线向所述第二USB接口的第二电源线输出所述电源信号；
所述控制器检测所述第一USB接口中第一电源线的电压，同时检测所述第一 USB接口中第一信号线的电压，计算所述第一电源线的电压与所述第一信号线的电压的电压差，根据所述电压差确定接口插接是否异常。
需要说明的是，如若使用充电适配器对移动终端进行充电，用户会将所述第一USB接口与第二USB接口插接；进而只要所述第一信号线和所述第二信号线不是断开的（即相连的），我们都可以认为第一USB接口的第一信号线的电压与二 USB接口的第二信号线的电压是近似相等的。
当控制器从获取到的所述第一USB接口中第一电源线的电压和所述第一信号线的电压时，由于所述第二USB接口中的所述第二电源线和所述第二信号线是短路连接的，进而控制器获取到的所述第一信号线的电压也为所述第二USB接口中的所述第二电源线的电压；进而控制器计算出的电压差（第一电源线的电压与所述第一信号线的电压的电压差）也为：所述第一USB接口中第一电源线的电压与所述第二USB接口中的所述第二电源线的电压的电压差。
从而，控制器可以根据计算出的所述第一电源线的电压与所述第一信号线的电压的电压差，判断所述第一USB接口中第一电源线与所述第二USB接口中的所述第二电源线的插接是否异常，从而判断出第一USB接口与第二USB接口的插接是否异常。
图2示出了本发明实施例提供的接口插接异常检测方法的第二种具体流程，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
在本发明另一实施例中，所述接口插接异常检测方法还包括：
当所述第一USB接口中第一电源线的电压与所述第一USB接口中第一信号线的电压的电压差大于预设电压阈值时，所述控制器控制警告提示电路发出警告提示，向所述电源电路发送停止检测指令，以所述电源电路停止向所述第一USB接口的电源线输出电源信号。
这样，无论是在将第一USB接口插接第二USB接口时，还是在完成插接异常检测并在进行充电的过程中，为了防止出现插接异常而引起USB接口（第一USB接口和第二USB接口）的损坏，一旦所述第一USB接口中第一电源线的电压与所述第一USB接口中第一信号线的电压的电压差大于预设电压阈值，则控制器停止电源电路向所述第一USB接口的电源线输出的电源信号；同时，控制器控制警告提示电路发出警告提示。
图3示出了本发明实施例提供的接口插接异常检测方法的第三种具体流程，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
在本发明另一实施例中，所述控制器控制警告提示电路发出警告提示的步骤之后，所述接口插接异常检测方法还包括：
间隔预设时间段之后，所述控制器向所述电源电路发送检测指令，以所述电源电路向所述第一USB接口的电源线输出电源信号。
具体在当接口插接异常出现时，由于已通过警告提示电路发出警告提示，从而用户可以将第一USB接口与第二USB接口进行重新插接。相应地，电源电路停止向所述第一USB接口的电源线输出电源信号之后，每经过预设时间段，控制器向所述电源电路发送检测指令；进而电源电路向所述第一USB接口的电源线输出电源信号，控制器重新获取所述第一USB接口中第一电源线的电压与所述第二USB接口中的所述第二电源线的电压并计算出电压差，通过计算出的电压差重新判断第一USB接口的第一电源线与第二USB接口的第二电源线的插接是否良好。
以此类推，只有在第一USB接口与第二USB接口是良好插接的情况下，才会进行充电，尤其是快速的大电流（3A以上的电流）充电。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下做出若干等同替代或明显变型，而且性能或用途相同，都应当视为属于本发明由所提交的权利要求书确定的专利保护范围。

Claims (10)

  1. 一种接口插接异常检测电路，包括电源电路，其特征在于，还包括：
    第一USB接口，其包括第一电源线和第一信号线，所述第一电源线的电源端连接所述电源电路；
    第二USB接口，其包括第二电源线和第二信号线，所述第二电源线和所述第二信号线短路连接；其中，所述第二USB接口通过与所述第一USB接口的插接将所述第二信号线与所述第一信号线相连；所述第一电源线用于：接收所述电源电路输出的电源信号，将接收到的电源信号向与所述第一USB接口插接的所述第二USB接口中的所述第二电源线输出。
    控制器，其第一电压采集端连接所述第一USB接口中第一电源线的电源端，其第二电压采集端连接所述第一USB接口中第一信号线的信号端；所述控制器用于通过所述第一USB接口与所述第二 USB接口的插接获取所述第一USB接口中第一电源线的电压和所述第一信号线的电压，计算出所述第一电源线的电压与所述第一信号线的电压的电压差，以根据所述电压差确定接口插接是否异常。
  2. 如权利要求1所述的接口插接异常检测电路，其特征在于，所述接口插接异常检测电路还包括：
    警告提示电路，其受控端与所述控制器的控制端连接，当所述第一USB接口中第一电源线的电压与所述第一USB接口中第一信号线的电压的电压差大于预设电压阈值时，接收所述控制器发送的提示指令，发出警告提示。
  3. 如权利要求1所述的接口插接异常检测电路，其特征在于，所述第一USB接口为USB插座，所述电源电路、所述第一USB接口以及所述控制器包含于移动终端；
    所述第二USB接口为USB插头，所述第二USB接口包含于充电适配器。
  4. 如权利要求1所述的接口插接异常检测电路，其特征在于，所述第一USB接口为USB插头，所述电源电路、所述第一USB接口以及所述控制器包含于充电适配器；
    所述第二USB接口为USB插座，所述第二USB接口包含于移动终端。
  5. 如权利要求1至4任一项所述的接口插接异常检测电路，其特征在于，
    所述第一USB接口包含的所述第一电源线的个数为P个，P大于或等于2；
    所述第一USB接口还包含有Q个第一地线，所述Q大于或等于2。
  6. 如权利要求5所述的接口插接异常检测电路，其特征在于，
    所述第二USB接口包含的所述第二电源线的个数为M个，所述M大于或等于2；
    所述第二USB接口还包含有N个第二地线，所述N大于或等于2。
  7. 如权利要求6所述的接口插接异常检测电路，其特征在于，
    所述P、所述M、所述Q以及所述N均相等；
    所述第一USB接口包含的第一电源线采用铬青铜C18400或磷青铜C7025制成，所述第一USB接口包含的第一地线采用铬青铜C18400或磷青铜C7025制成，所述第二USB接口包含的第二电源线采用铬青铜C18400或磷青铜C7025制成，所述第二USB接口包含的第二地线采用铬青铜C18400或磷青铜C7025制成。
  8. 一种接口插接异常检测方法，应用于包括控制器、第一USB接口、第二USB接口以及电源电路的接口插接异常检测电路，当所述第一USB接口与所述第二USB接口插接时所述第一信号线和所述第二信号线相连；其特征在于，所述接口插接异常检测方法包括：
    将所述第二USB接口中的第二电源线和所述第二USB接口中的第二信号线短接；
    当所述第一USB接口与所述第二USB接口插接时，所述电源电路向所述第一USB接口的第一电源线输出电源信号，以所述第一USB接口通过第一电源线向所述第二USB接口的第二电源线输出所述电源信号；
    所述控制器检测所述第一USB接口中第一电源线的电压，同时检测所述第一USB接口中第一信号线的电压，计算所述第一电源线的电压与所述第一信号线的电压的电压差，根据所述电压差确定接口插接是否异常。
  9. 如权利要求8所述的接口插接异常检测方法，其特征在于，所述接口插接异常检测方法还包括：
    当所述第一USB接口中第一电源线的电压与所述第一USB接口中第一信号线的电压的电压差大于预设电压阈值时，所述控制器控制警告提示电路发出警告提示，向所述电源电路发送停止检测指令，以所述电源电路停止向所述第一USB接口的电源线输出电源信号。
  10. 如权利要求9所述的接口插接异常检测电路，其特征在于，所述控制器控制警告提示电路发出警告提示的步骤之后，所述接口插接异常检测方法还包括：
    间隔预设时间段之后，所述控制器向所述电源电路发送检测指令，以所述电源电路向所述第一USB接口的电源线输出电源信号。
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