CN106294250A - A kind of method keeping USB (universal serial bus) communication robust and relevant device - Google Patents
A kind of method keeping USB (universal serial bus) communication robust and relevant device Download PDFInfo
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- CN106294250A CN106294250A CN201510268472.XA CN201510268472A CN106294250A CN 106294250 A CN106294250 A CN 106294250A CN 201510268472 A CN201510268472 A CN 201510268472A CN 106294250 A CN106294250 A CN 106294250A
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- usb
- output circuit
- relay
- data line
- electric output
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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
-
- 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
- G06F13/4081—Live connection to bus, e.g. hot-plugging
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Information Transfer Systems (AREA)
Abstract
The embodiment of the invention discloses a kind of method keeping USB (universal serial bus) communication robust and relevant device, the reconnect of USB between full automatic mobile terminal and the PC realizing and disconnecting.The method comprise the steps that and USB data line exists relay, and the electric output circuit of relay is used for turning on this USB data line, when detecting that the USB set up with mobile terminal by this USB data line is connected not online, control this relay and disconnect electric output circuit and reconnect after preset time period.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of method keeping USB (universal serial bus) communication robust
And relevant device.
Background technology
USB (universal serial bus) (Universal Serial Bus, USB) be a kind of for proper calculation machine with outer
The external bus standard being connected and communicate with of portion's equipment, apply personal computer (personal computer,
PC) interfacing in field.
Frequently with USB data line, PC is connected with mobile terminal at present, thus on PC, this is moved end
The data of end update or debug this mobile terminal.
But, in the case of current mobile terminal connects PC for a long time by USB data line, can be indefinite
Time the situation that communication is unstable and disconnects occurs, need continuous manual plug USB data line that this is moved
Terminal reconnects with PC.Particularly under the scene of test program or test mobile terminal, when test journey
When sequence or test mobile terminal are the most, if wherein there being mobile terminal to be connected disconnection with the USB of PC, need
Expending substantial amounts of manpower manual intervention goes the mobile terminal of lookup disconnection plug USB data line to make
USB reconnects, cause testing efficiency underground, and the strong influence full-automatic portion of testing tool
Administration.
Summary of the invention
Embodiments provide a kind of method keeping USB (universal serial bus) communication robust and relevant set
Standby, the reconnect of USB between full automatic mobile terminal and the PC realizing and disconnecting.
A kind of method keeping USB (universal serial bus) communication robust, including:
Set up USB by general-purpose serial bus USB data wire with mobile terminal to be connected, described USB number
Including that relay, described relay include electric output circuit according to line, described electric output circuit is used
In turning on described USB data line；
Detect described USB and connect the most online；
When determining that described USB connects not online, control described relay and disconnect described electric output circuit
And reconnect after preset time period.
A kind of device keeping USB (universal serial bus) communication robust, including:
Set up module, be connected for setting up USB by USB data line with mobile terminal, described USB
Data wire includes that relay, described relay include electric output circuit, described electric output circuit
For turning on described USB data line；
Detection module, connects the most online for detecting the described USB setting up module foundation；
Control module, for when described detection module determines that described USB connects not online, controlling described
Relay disconnects described electric output circuit and reconnects after preset time period.
A kind of USB data line, described USB data line includes:
Relay；
Described relay specifically includes:
Electrically output circuit, the conducting as described USB data line switchs, the two of described USB data line
Section is connected to the two ends of described electric output circuit；
Control circuit, when being used for receiving reset command, disconnects described electric output circuit and when preset
After length, described electric output circuit is reconnected.
A kind of USB data line, described USB data line includes:
Relay；
Described relay specifically includes:
Electrically output circuit, the conducting as described USB data line switchs, the two of described USB data line
Section is connected to the two ends of described electric output circuit；
Control circuit, for when the "on" position of control circuit changes, by electric output circuit by
Disconnection is switched to Guan Bi or is switched to disconnect by Guan Bi, and described "on" position includes electriferous state and power down shape
State.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that the embodiment of the present invention
Middle USB data line exists relay, and the electric output circuit of relay is used for turning on this usb data
Line, when detecting that the USB set up with mobile terminal by this USB data line is connected not online, controls
This relay disconnects electric output circuit and reconnects, due to this electric output circuit after preset time period
For turning on this USB data line, disconnect electric output circuit and be i.e. equal to disconnect the thing of this USB data line
Reason connects, and reconnects this electric output circuit and is i.e. equal to reconnect the physics of this USB data line even
Connect, so, automatically disconnecting and reconnecting by relay, reach and artificial plug usb data
The effect that line is identical, the reconnect of USB between mobile terminal and PC that full automatic realization disconnects,
And it is no longer necessary to manual intervention, substantially increase testing efficiency and save human cost.
Accompanying drawing explanation
Fig. 1 is one the flow process signal of method keeping USB (universal serial bus) communication robust in the embodiment of the present invention
Figure；
Fig. 2 is to keep another flow process of method of USB (universal serial bus) communication robust to show in the embodiment of the present invention
It is intended to；
Fig. 3 is to keep another flow process of method of USB (universal serial bus) communication robust to show in the embodiment of the present invention
It is intended to；
Fig. 4 is one structural representation of device keeping USB (universal serial bus) communication robust in the embodiment of the present invention
Figure；
Fig. 5 is one structural representation of system keeping USB (universal serial bus) communication robust in the embodiment of the present invention
Figure.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those skilled in the art are not making wound
The every other embodiment obtained under the property made work premise, broadly falls into the scope of protection of the invention.
Term " relay " represents a kind of electric control device, is the input quantity (energizing quantity) when control circuit
Change reach regulation when requiring, make controlled volume that predetermined Spline smoothing occurs in electric output circuit
A kind of electrical equipment.
It is understood that in the embodiment of the present invention, the device keeping USB (universal serial bus) communication robust can
Think a variety of, such as, can be PC, it is also possible to for server, it is also possible to for industrial computer etc., this
Place is not construed as limiting.Below with this holding in each embodiment of the method for holding USB (universal serial bus) communication robust
The device of USB (universal serial bus) communication robust is to illustrate as a example by PC, and in actual applications, this holding is led to
May be used without identical method when being other equipment with the device that serial bus communication is stable, do not limit
Fixed.
Refer to Fig. 1, the embodiment of the present invention keeps one reality of method of USB (universal serial bus) communication robust
Execute example to include:
101, set up USB by USB data line with mobile terminal to be connected；
In this step, USB data line has two USB interface, and one of them USB interface is with PC's
USB interface connects, and another USB interface is connected with the USB interface of mobile terminal.Two USB connect
After mouth has all connected, PC can set up USB by this USB data line with this mobile terminal and be connected,
Wherein, this USB data line also includes relay, and this relay includes electric output circuit, and this is electric
Output circuit is used for turning on this USB data line.
It is understood that this mobile terminal can be mobile phone, it is also possible to for flat board, it is also possible to be portable
Player, it is also possible to be the mobile terminal of other support USB interface, be not construed as limiting herein.
102, detect described USB and connect the most online；
PC sets up after USB is connected by USB data line with mobile terminal, and PC can detect this USB even
Connect the most online, it is to be understood that USB connects online expression PC can read this USB connection also
Can be connected by this USB and send data to mobile terminal；USB connects and represents that PC can not read the most online
Connect to this USB or PC can not be connected to mobile terminal transmission data by this USB.
103, when determining that described USB connects not online, control described relay and disconnect described the most defeated
Go out circuit and reconnect after preset time period.
In this step, when PC determines that this USB connects not online, control continuing in this USB data line
Electrical equipment disconnects electric output circuit, is i.e. disconnected this USB data line, reconnects after preset time period,
The most again turn on this USB data line, reach identical effect with artificial plug USB data line.
The embodiment of the present invention exists in USB data line relay, and the electric output circuit of relay is used
In turning on this USB data line, when the USB set up by this USB data line being detected with mobile terminal
When connecting not online, control this relay and disconnect electric output circuit and reconnect after preset time period,
Owing to this electric output circuit is used for turning on this USB data line, disconnect electric output circuit and be i.e. equal to break
Open the physical connection of this USB data line, reconnect this electric output circuit and be i.e. equal to reconnect be somebody's turn to do
The physical connection of USB data line, so, automatically disconnecting and reconnecting by relay, reach
The effect identical with artificial plug USB data line, mobile terminal and PC that full automatic realization disconnects it
Between the reconnect of USB, and be no longer necessary to manual intervention, substantially increase testing efficiency and save people
Power cost.
It is understood that in actual applications, the USB having multiple situation can cause establishing connects not
Online, need to reconnect, a such as debugging acid (Android Debug in android system
Bridge, ADB) service operation time, arise that the situation that communication is unstable, and need continuous plug
USB data line reconnects, and the most once in a while during USB interface corrupt data, also has other some feelings
Condition, is not construed as limiting herein.
In above example, detection USB connects the most online, in actual applications, and the triggering bar of detection
Part can have multiple, on the other hand, controls relay and disconnect described electric output circuit in above example
And reconnect after preset time period, in actual applications, according to the difference of relay, it would however also be possible to employ
Various ways is controlled, below to the side keeping USB (universal serial bus) communication robust in the embodiment of the present invention
Method is specifically described, and refers to Fig. 2, keeps USB (universal serial bus) communication robust in the embodiment of the present invention
Another embodiment of method includes:
201, set up USB by USB data line with mobile terminal to be connected；
In this step, USB data line has two USB interface, and one of them USB interface is with PC's
USB interface connects, and another USB interface is connected with the USB interface of mobile terminal.Two USB connect
After mouth has all connected, PC can set up USB by this USB data line with this mobile terminal and be connected,
Wherein, this USB data line also includes relay, and this relay includes electric output circuit, and this is electric
Output circuit is used for turning on this USB data line.
It is understood that this mobile terminal can be mobile phone, it is also possible to for flat board, it is also possible to be portable
Player, it is also possible to be the mobile terminal of other support USB interface, be not construed as limiting herein.
202, detect described USB and connect the most online；
PC sets up after USB is connected by USB data line with mobile terminal, and PC can detect this USB even
Connect the most online, it is to be understood that USB connects online expression PC can read this USB connection also
Can be connected by this USB and send data to mobile terminal；USB connects and represents that PC can not read the most online
Connect to this USB or PC can not be connected to mobile terminal transmission data by this USB.
Have a variety of the most online opportunity it is understood that PC detection USB connects:
Optionally, PC can detect this USB according to during cycle and connect the most online, this during cycle
Can preset, it is also possible to by User Defined, be not construed as limiting herein；
Optionally, PC can be worked as and determine and exist when being sent to the data of this mobile terminal, detect this USB
Connect the most online；
Optionally, it is also possible to when PC sends data to mobile terminal failure, detecting this USB connection is
No online.
In actual applications, can with select according to the actual requirements to use which kind of mode to determine detection opportunity,
It is not construed as limiting herein.
It is understood that PC can detect relay (the control electricity of relay in USB data line
Road) whether it is in connection status with this PC, whether can be connected with PC by this relay, judge
The most whether the USB interface of this USB data line is connected with the USB interface of this PC；
In actual applications, optionally, can set only determine the USB interface of USB data line with
In the case of the USB interface of this PC connects, just perform step 202.
203, when determining that described USB connects not online, reset command is sent to described relay, institute
State reset command for indicate described relay disconnect described electric output circuit and after preset time period again
Connect.
In this step, this relay has certain instruction processing function, can receive the instruction that PC sends,
Perform the instruction received.When determining that USB connects not online, this PC sends reset command and continues to this
Electrical equipment, this reset command is used for indicating this relay disconnect this electric output circuit and weigh after preset time period
New connection.After relay receives this reset command, perform this reset command, disconnect electric output circuit,
I.e. it is disconnected the physical connection of USB data line, reconnects after preset time period, turn on this most again
USB data line, reaches identical effect with artificial plug USB data line.
In the embodiment of the present invention, various ways detection trigger USB can be used to connect the most online, increase
The applicable scene of the method, and relay has the ability processing instruction, it is only necessary to directly transmit and restart life
Order, to relay, simplifies operating procedure, improves treatment effeciency.
In actual applications, except sending reset command, it is also possible to use other control modes, refer to
Fig. 3, keeps another embodiment of method of USB (universal serial bus) communication robust to include in the embodiment of the present invention:
301, set up USB by USB data line with mobile terminal to be connected；
In this step, USB data line has two USB interface, and one of them USB interface is with PC's
USB interface connects, and another USB interface is connected with the USB interface of mobile terminal.Two USB connect
After mouth has all connected, PC can set up USB by this USB data line with this mobile terminal and be connected,
Wherein, this USB data line also includes relay, and this relay includes electric output circuit, and this is electric
Output circuit is used for turning on this USB data line.
It is understood that this mobile terminal can be mobile phone, it is also possible to for flat board, it is also possible to be portable
Player, it is also possible to be the mobile terminal of other support USB interface, be not construed as limiting herein.
302, detect described USB and connect the most online；
PC sets up after USB is connected by USB data line with mobile terminal, and PC can detect this USB even
Connect the most online, it is to be understood that USB connects online expression PC can read this USB connection also
Can be connected by this USB and send data to mobile terminal；USB connects and represents that PC can not read the most online
Connect to this USB or PC can not be connected to mobile terminal transmission data by this USB.
Have a variety of the most online opportunity it is understood that PC detection USB connects:
Optionally, PC can detect this USB according to during cycle and connect the most online, this during cycle
Can preset, it is also possible to by User Defined, be not construed as limiting herein；
Optionally, PC can be worked as and determine and exist when being sent to the data of this mobile terminal, detect this USB
Connect the most online；
Optionally, it is also possible to when PC sends data to mobile terminal failure, detecting this USB connection is
No online.
In actual applications, can with select according to the actual requirements to use which kind of mode to determine detection opportunity,
It is not construed as limiting herein.
It is understood that PC can detect relay (the control electricity of relay in USB data line
Road) whether it is in connection status with this PC, whether can be connected with PC by this relay, judge
The most whether the USB interface of this USB data line is connected with the USB interface of this PC；
In actual applications, optionally, can set only determine the USB interface of USB data line with
In the case of the USB interface of this PC connects, just perform step 302.
303, when determining that described USB connects not online, described relay is changed with preset time interval
The "on" position twice of control circuit, described "on" position includes electriferous state and power-down state, described
Control circuit is for controlling disconnection and the Guan Bi of described electric output circuit.
It is understood that the "on" position of control relay circuit (control coil) can affect the most defeated
Going out disconnection and the Guan Bi of circuit, according to the difference of the contact types of this electric output circuit, control circuit is led to
Electricity condition is also different on its impact.In actual applications, this electric output circuit can be snap action
Contact (normally opened contact of snap action, the normally-closed contact of snap action), it is also possible to touching for timing closing
Point (normally opened contact of timing closing, the normally-closed contact of timing closing).Concrete delay duration and relay
Self performance relating to parameters, is not construed as limiting herein.
When the contact that this relay is snap action, this preset time interval is electric output circuit and breaks
Opening the duration of re-attached, when the contact that this relay is timing closing, electric output circuit disconnects
The duration of re-attached is this preset time interval delay duration plus relay.If it addition, electricity
Gas output circuit is normally-closed contact, and the most generally, this control circuit should be at power-down state, to protect
The conducting of card USB data line, if electrically output circuit is normally opened contact, then under general state, this control
Circuit should be at electriferous state, to ensure the conducting of USB data line.According to the actual requirements, meeting
Under conditions of USB data line is conducting state after accessing PC, the relay of different contact types can be chosen
Device, is not construed as limiting herein.
In this step, no matter which kind of contact types relay selects, and is conducting state in USB data line
Under the conditions of, changing the "on" position of control relay circuit once, then this control circuit controls electrically output
Circuit disconnects, i.e. the physical connection of USB data line disconnects, and after preset time interval, then changes relay
Once, then this control circuit controls electric output circuit Guan Bi, i.e. USB number to the conduction state of control circuit
Again turn on according to the physical connection of line, reach identical effect with artificial plug USB data line.
In the embodiment of the present invention, the "on" position directly changing control circuit controls electric output circuit
Disconnect and Guan Bi, it is not necessary to relay has too many Intelligent treatment function, provides cost savings, and improves
The reaction efficiency of relay.
Additionally, in actual applications, a PC can include multiple USB interface, thus by many
Root USB data line is simultaneously connected with multiple mobile device, for being connected with the USB of each mobile device, all
The method described in the various embodiments described above can be respectively adopted.
For ease of understanding, total to the embodiment of the present invention keeps general serial with a concrete application scenarios below
The method of line communication robust is specifically described:
3 USB interface on one PC are respectively adopted USB data line and are connected with 3 mobile phones, right
These 3 mobile phones are tested.Wherein usb 1 uses USB data line 1 to be connected with mobile phone 1,
USB interface 2 uses USB data line 2 to be connected with mobile phone 2, and USB interface 3 uses USB data line
3 are connected with mobile phone 3；
PC is set up USB with mobile phone 1 be connected 1 by USB data line 1, by USB data line 2 and
Mobile phone 2 is set up USB and is connected 2, sets up USB by USB data line 3 with mobile phone 3 and is connected 3；
Mobile phone 3 is debugged by PC, when needing to send data to mobile phone 3, detects and sets up with mobile phone 3
USB connect 3 online, connect 3 by this USB and transmit data to mobile phone 3；
Mobile phone 2 is debugged by PC, when needing to send data to mobile phone 2, detects and sets up with mobile phone 2
USB connect 2 the most online；
The "on" position of the control circuit of PC change USB data line 2 repeat circuit twice, the electricity of relay
Gas output circuit is timing closing normally-closed contact, and the control circuit of relay is the most charged, disconnects electrically output
Circuit, control circuit is the most charged, the timing closing after 5 seconds of electric output circuit；
After electrically output circuit reconnects, it is online, by this USB even that PC detects that USB connects 2
Connect 2 and transmit data to mobile phone 2.
Below to the embodiment of the present invention keeping the device of USB (universal serial bus) communication robust illustrate, please
Refering to Fig. 4, the embodiment of the present invention keeps one embodiment bag of device of USB (universal serial bus) communication robust
Include:
Set up module 401, be connected for setting up USB by USB data line with mobile terminal, described
USB data line includes that relay, described relay include electric output circuit, described electric output
Circuit is used for turning on described USB data line；
Detection module 402, connects the most online for detecting the described USB setting up module 401 foundation；
Control module 403, is used for when described detection module 402 determines that described USB connects online,
Control described relay disconnect described electric output circuit and reconnect after preset time period.
The embodiment of the present invention exists in USB data line relay, and the electric output circuit of relay is used
In turning on this USB data line, when detection module 402 detects by this USB data line and mobile terminal
When the USB set up connects not online, control module 403 controls this relay and disconnects electric output circuit also
Reconnect after preset time period, owing to this electric output circuit is used for turning on this USB data line, disconnect
Electrically output circuit is i.e. equal to the physical connection disconnecting this USB data line, reconnects this and electrically exports
Circuit is i.e. equal to the physical connection reconnecting this USB data line, so, and automatic by relay
Disconnect and reconnect, having reached the effect identical with artificial plug USB data line, full automatic realization
The reconnect of USB between the mobile terminal and the PC that disconnect, and it is no longer necessary to manual intervention, significantly carry
High testing efficiency also saves human cost.
In actual applications, detection module can trigger on multiple different opportunity:
Optionally, as in the embodiment of the present invention keep USB (universal serial bus) communication robust device another
Embodiment, above-mentioned detection module 402 specifically may be used for, and detects described USB according to during cycle and connects
The most online；
Optionally, as in the embodiment of the present invention keep USB (universal serial bus) communication robust device another
Embodiment, the detection module 402 in Fig. 4 correspondence embodiment specifically may be used for, when determine exist pending
When delivering to the data of described mobile terminal, detect described USB and connect the most online.
In actual applications, the described relay of above-mentioned control disconnects described electric output circuit and when preset
Reconnect after length and can use various ways:
Optionally, as in the embodiment of the present invention keep USB (universal serial bus) communication robust device another
Embodiment, above-mentioned control module 403 specifically for, send reset command to described relay, described heavy
Open order for indicating described relay disconnect described electric output circuit and again connect after preset time period
Connect.
In the embodiment of the present invention, relay has the ability processing instruction, and control module 303 only needs directly
Transmission reset command, to relay, simplifies operating procedure, improves treatment effeciency.
Optionally, as in the embodiment of the present invention keep USB (universal serial bus) communication robust device another
Embodiment, above-mentioned control module 403 specifically for, change described relay with preset time by interval
The "on" position of control circuit twice, described "on" position includes electriferous state and power-down state, described control
Circuit processed is for controlling disconnection and the Guan Bi of described electric output circuit.
In the embodiment of the present invention, control module 403 directly changes the "on" position of control circuit to control electricity
The disconnection of gas output circuit and Guan Bi, it is not necessary to relay has too many Intelligent treatment function, saves into
This, and improve the reaction efficiency of relay.
For the ease of understanding above-described embodiment, below with the dress of above-mentioned holding USB (universal serial bus) communication robust
Put modules interaction in a concrete application scenarios to illustrate:
3 USB interface on one PC are respectively adopted USB data line and are connected with 3 mobile phones, right
These 3 mobile phones are tested.Wherein usb 1 uses USB data line 1 to be connected with mobile phone 1,
USB interface 2 uses USB data line 2 to be connected with mobile phone 2, and USB interface 3 uses USB data line
3 are connected with mobile phone 3；
Set up module 401 to set up USB by USB data line 1 with mobile phone 1 and be connected 1, pass through USB
Data wire 2 is set up USB with mobile phone 2 and is connected 2, sets up USB by USB data line 3 and mobile phone 3
Connect 3；
Mobile phone 3 is debugged by PC, and when needing to send data to mobile phone 3, detection module 402 detects
The USB set up with mobile phone 3 is connected 3 online, transmits data to mobile phone 3 by this USB connection 3；
Mobile phone 2 is debugged by PC, and when needing to send data to mobile phone 2, detection module 402 detects
It is the most online that the USB set up with mobile phone 2 is connected 2；
Control module 403 changes the "on" position twice of the control circuit of USB data line 2 repeat circuit,
The electric output circuit of relay is timing closing normally-closed contact, and the control circuit of relay is the most charged, disconnected
Driving electric output circuit, control circuit is the most charged, the timing closing after 5 seconds of electric output circuit；
After electrically output circuit reconnects, detection module 402 detects that USB connection 2 is online, passes through
This USB connects 2 and transmits data to mobile phone 2.
Below the USB data line in the embodiment of the present invention is described:
In the embodiment of the present invention, an embodiment of USB data line includes::
This USB data line includes relay；
This relay specifically includes:
Electrically output circuit, the conducting as described USB data line switchs, the two of described USB data line
Section is connected to the two ends of described electric output circuit；
Control circuit, when being used for receiving reset command, disconnects described electric output circuit and when preset
After length, described electric output circuit is reconnected.
The relay of the embodiment of the present invention has the ability processing instruction, after receiving reset command, from
Dynamic circuit breaker is driven electric output circuit and is reconnected by described electric output circuit after preset time period, simplifies
Operating procedure, improves treatment effeciency.
In the embodiment of the present invention, another embodiment of USB data line includes:
This USB data line includes relay；
This relay specifically includes:
Electrically output circuit, the conducting as described USB data line switchs, the two of described USB data line
Section is connected to the two ends of described electric output circuit；
Control circuit, for when the "on" position of control circuit changes, by electric output circuit by
Disconnection is switched to Guan Bi or is switched to disconnect by Guan Bi, and described "on" position includes electriferous state and power down shape
State.
In the embodiment of the present invention, when the control circuit "on" position of relay changes, directly switching is the most defeated
Go out the closed and disconnected state of circuit, it is not necessary to relay has too many Intelligent treatment function, saves into
This, and improve the reaction efficiency of relay.
It is understood that the "on" position of control relay circuit (control coil) can affect the most defeated
Going out disconnection and the Guan Bi of circuit, according to the difference of the contact types of this electric output circuit, control circuit is led to
Electricity condition is also different on its impact.In actual applications, this electric output circuit can be snap action
Contact (normally opened contact of snap action, the normally-closed contact of snap action), it is also possible to touching for timing closing
Point (normally opened contact of timing closing, the normally-closed contact of timing closing).Concrete delay duration and relay
Self performance relating to parameters, is not construed as limiting herein.
When the contact that this relay is snap action, this preset time interval is electric output circuit and breaks
Opening the duration of re-attached, when the contact that this relay is timing closing, electric output circuit disconnects
The duration of re-attached is this preset time interval delay duration plus relay.If it addition, electricity
Gas output circuit is normally-closed contact, and the most generally, this control circuit should be at power-down state, to protect
The conducting of card USB data line, if electrically output circuit is normally opened contact, then under general state, this control
Circuit should be at electriferous state, to ensure the conducting of USB data line.According to the actual requirements, meeting
Under conditions of USB data line is conducting state after accessing PC, the relay of different contact types can be chosen
Device, is not construed as limiting herein.
Below with keep USB (universal serial bus) communication robust device as PC, the relay in USB is instantaneous
The normally-closed contact of action, as a example by mobile terminal is mobile phone, total to the embodiment of the present invention keeps general serial
The system of line communication robust illustrates, and refers to Fig. 5, keeps USB (universal serial bus) in the embodiment of the present invention
One embodiment of the system of communication robust includes:
Keep the device 501 of USB (universal serial bus) communication robust, USB data line 502, mobile terminal 503；
The device 501 keeping USB (universal serial bus) communication robust has USB interface 5011, USB data line
502 have USB interface 5021 and USB interface 5022, and mobile terminal 503 has USB interface 5031；
USB interface 5021 is connected with USB interface 5011, USB interface 5022 and USB interface 5031
Connect；
USB data line 502 includes relay 5023；
(Fig. 5 is with the normally-closed contact of snap action to include electric output circuit 50231 in relay 5023
As a example by), this electric output circuit 50231 is used for turning on this USB data line 502, i.e. USB data line
The two ends of 502 are connected on the two ends of this electric output circuit 50231；
Relay 5023 includes control circuit 50232 (in Fig. 5 as a example by control coil), this control
Circuit 50232 is for controlling disconnection and the Guan Bi of electric output circuit 50231, this control circuit 50232
It is connected with the device 501 keeping USB (universal serial bus) communication robust by this USB interface 5021, can connect
Receive the reset command of the device 501 of this holding USB (universal serial bus) communication robust, or be kept general serial
The stable device 501 of bus communication changes "on" position, and described "on" position includes electriferous state and power down
State.
Those skilled in the art is it can be understood that arrive, and for convenience and simplicity of description, above-mentioned retouches
The specific works process of the system stated, device and unit, is referred to the correspondence in preceding method embodiment
Process, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, device and
Method, can realize by another way.Such as, device embodiment described above is only shown
Meaning property, such as, the division of described unit, be only a kind of logic function and divide, actual can when realizing
There to be other dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another
System, or some features can ignore, or do not perform.Another point, shown or discussed each other
Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit
Or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, makees
The parts shown for unit can be or may not be physical location, i.e. may be located at a place,
Or can also be distributed on multiple NE.Can select according to the actual needs part therein or
The whole unit of person realizes the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit
In, it is also possible to it is that unit is individually physically present, it is also possible to two or more unit are integrated in one
In individual unit.Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ software merit
The form of energy unit realizes.
If described integrated unit realizes and as independent production marketing using the form of SFU software functional unit
Or when using, can be stored in a computer read/write memory medium.Based on such understanding, this
The part that the most in other words prior art contributed of technical scheme of invention or this technical scheme
Completely or partially can embody with the form of software product, this computer software product is stored in one
In storage medium, including some instructions with so that computer equipment (can be personal computer,
Server, or the network equipment etc.) perform completely or partially walking of method described in each embodiment of the present invention
Suddenly.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory),
The various medium that can store program code such as magnetic disc or CD.
The above, above example only in order to technical scheme to be described, is not intended to limit；
Although being described in detail the present invention with reference to previous embodiment, those of ordinary skill in the art should
Work as understanding: the technical scheme described in foregoing embodiments still can be modified by it, or to it
Middle part technical characteristic carries out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence depart from various embodiments of the present invention technical scheme spirit and scope.
Claims (10)
1. the method keeping USB (universal serial bus) communication robust, it is characterised in that including:
Set up USB by general-purpose serial bus USB data wire with mobile terminal to be connected, described USB number
Including that relay, described relay include electric output circuit according to line, described electric output circuit is used
In turning on described USB data line；
Detect described USB and connect the most online；
When determining that described USB connects not online, control described relay and disconnect described electric output circuit
And reconnect after preset time period.
Method the most according to claim 1, it is characterised in that the described USB of described detection connects
Specifically include the most online:
Detect described USB according to during cycle and connect the most online；
Or,
When determine exist be sent to the data of described mobile terminal time, detect described USB and connect and whether exist
Line.
Method the most according to claim 1 and 2, it is characterised in that the described relay of described control
Disconnect described electric output circuit reconnecting after preset time period to specifically include:
Transmission reset command is to described relay, and described reset command is used for indicating described relay to disconnect institute
State electric output circuit and reconnect after preset time period.
Method the most according to claim 1 and 2, it is characterised in that the described relay of described control
Disconnect described electric output circuit reconnecting after preset time period to specifically include:
Change the "on" position twice of the control circuit of described relay by interval with preset time, described logical
Electricity condition includes that electriferous state and power-down state, described control circuit are used for controlling described electric output circuit
Disconnection and Guan Bi.
5. the device keeping USB (universal serial bus) communication robust, it is characterised in that including:
Set up module, be connected for setting up USB by USB data line with mobile terminal, described USB
Data wire includes that relay, described relay include electric output circuit, described electric output circuit
For turning on described USB data line；
Detection module, connects the most online for detecting the described USB setting up module foundation；
Control module, for when described detection module determines that described USB connects not online, controlling described
Relay disconnects described electric output circuit and reconnects after preset time period.
Device the most according to claim 5, it is characterised in that described detection module specifically for:
Detect described USB according to during cycle and connect the most online, or, when determining that existence is sent to described shifting
When moving the data of terminal, detect described USB and connect the most online.
7. according to the device described in claim 5 or 6, it is characterised in that described control module is specifically used
In, transmission reset command is to described relay, and described reset command is used for indicating described relay to disconnect institute
State electric output circuit and reconnect after preset time period.
8. according to the device described in claim 5 or 6, it is characterised in that described control module is specifically used
In, change the "on" position twice of the control circuit of described relay by interval with preset time, described logical
Electricity condition includes that electriferous state and power-down state, described control circuit are used for controlling described electric output circuit
Disconnection and Guan Bi.
9. a USB data line, it is characterised in that described USB data line includes:
Relay；
Described relay specifically includes:
Electrically output circuit, the conducting as described USB data line switchs, the two of described USB data line
Section is connected to the two ends of described electric output circuit；
Control circuit, when being used for receiving reset command, disconnects described electric output circuit and when preset
After length, described electric output circuit is reconnected.
10. a USB data line, it is characterised in that described USB data line includes:
Relay；
Described relay specifically includes:
Electrically output circuit, the conducting as described USB data line switchs, the two of described USB data line
Section is connected to the two ends of described electric output circuit；
Control circuit, for when the "on" position of control circuit changes, by electric output circuit by
Disconnection is switched to Guan Bi or is switched to disconnect by Guan Bi, and described "on" position includes electriferous state and power down shape
State.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268472.XA CN106294250A (en) | 2015-05-22 | 2015-05-22 | A kind of method keeping USB (universal serial bus) communication robust and relevant device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268472.XA CN106294250A (en) | 2015-05-22 | 2015-05-22 | A kind of method keeping USB (universal serial bus) communication robust and relevant device |
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| Publication Number | Publication Date |
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| CN106294250A true CN106294250A (en) | 2017-01-04 |
Family
ID=57633280
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510268472.XA Pending CN106294250A (en) | 2015-05-22 | 2015-05-22 | A kind of method keeping USB (universal serial bus) communication robust and relevant device |
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