CN209543330U - The resource switch system of usb hub - Google Patents
The resource switch system of usb hub Download PDFInfo
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- CN209543330U CN209543330U CN201920582384.0U CN201920582384U CN209543330U CN 209543330 U CN209543330 U CN 209543330U CN 201920582384 U CN201920582384 U CN 201920582384U CN 209543330 U CN209543330 U CN 209543330U
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Abstract
It is including source terminal, USB device and hub this application discloses a kind of resource switch system of usb hub.Source terminal has the first transmission channel, the second transmission channel and third transmission channel；Hub has switching circuit, switching switch, first equipment interface, second equipment interface and control chip, switching circuit is coupled to the first equipment interface, second equipment interface and control chip, first transmission channel is connected to the first equipment interface, third transmission channel is connected to the second equipment interface, switching circuit selects the path of the second transmission channel, first equipment interface and the second equipment interface are electrically connected to the GPIO foot position of control chip, chip is controlled through the communication type of GPIO foot position identification USB device, and determine that the second transmission channel is connected to the first equipment interface or the second equipment interface.
Description
Technical field
A kind of switching system of periphery hardware resource, the resource switch system of particularly relevant usb hub.
Background technique
With the promotion of Computing ability, so that the transmittability of peripheral device is also required to reinforce.Therefore general sequence
Column busbar connector (Universal Serial Bus, abbreviation USB) is reinforced from the 1.5Mbps of first generation agreement to third generation agreement
5Gbps.USB device is also expanded from storage facilities, peripheral device to functions such as image outputs.
Due to the image output mechanism of third generation usb protocol so that single docking station (dock) can provide USB interface with
Image interface, such as display port (DisplayPort), high picture quantity multimedia interface (High Definition Multimedia
Interface, abbreviation HDMI) or film graphic array (Video Graphics Array, abbreviation VGA).Port is shown in transmission
High-resolution image need the channel of high bandwidth, therefore the docking station of known techniques can provide image data and data information
The mechanism of channel switching.Addressed in 6515719 case of Taiwan patent of invention I (automatic switching control equipment and automatic switching method) with
The image analytic degree flow of transmission is as transmission channel quantity and switching.In I6515719 case when resolution convert when docking station
The quantity in USB transmission channel can increase or decrease, the biography of data information is also complied with while transmitting image data so as to meeting
It is defeated.For example, in the case where transmitting high-res, docking station can be switched to the second generation from third generation USB communications protocol
USB communications protocol, and the transmission channel being available is supplied to image data and is transmitted.
But such handover mechanism can generate two disadvantages, and first the disadvantage is that the identification of resolution is by host side (host)
It is determined.Since docking station itself does not have the recognition mechanism of data flow.Therefore it can only be judged by host side, and be
Realize that this target then needs to have corresponding broker program in host side.After judging image flow by broker program, broker program
In the processing of the switching transmission channel of driving docking station.Second point is then that the switching of image analytic degree will cause the biography of data information
Input mistake by mistake.Especially data information during transmission, if at this time docking station switching transmission channel quantity it will cause numbers
According to the write error of data.This is because by four transmission channels be reduced to two transmission channels can make transmission in data information
Lose, thus leads to write error.And image analytic degree when frequent switching occurs, then the write-in of data information also can be related
It is affected.
Utility model content
Technical problems to be solved in this application are: usb hub can provide corresponding when reconnecting different USB devices
Transmission channel and speed.
To solve the above-mentioned problems, the application provides a kind of resource switch system of usb hub, it is characterised in that switching
It is simultaneously transmitted for the acceleration of data in the data transmission channel of source terminal.The resource switch system of the USB hub of the application includes
Source terminal, USB device and hub.Source terminal has the second communication interface, and the second communication interface has the first transmission channel, the
Two transmission channels and third transmission channel；Hub is electrically connected at source terminal and USB device, hub have switching circuit,
Switching switch, the first communication interface, the first equipment interface, the second equipment interface and control chip, switching circuit are coupled to first
Interface, the first equipment interface, the second equipment interface and control chip are communicated, switching switch is connected to control chip, the first communication
Interface is connected to the second communication interface, and switching circuit is used to select the path of the second transmission channel, and the first transmission channel is connected to
First equipment interface, third transmission channel are connected to the second equipment interface, and the first equipment interface electrically connects with the second equipment interface
It is connected to the GPIO foot position of control chip, the second equipment interface connects USB device, and control chip identifies USB through GPIO foot position
The communication type of equipment, and determine that the second transmission channel is connected to the first equipment interface or the second equipment interface.
The application more proposes a kind of usb hub, it is characterised in that according to the USB device connected and then determines that transmission is logical
The quantity in road.The usb hub of the application connects including the first communication interface, switching switch, the first equipment interface, the second equipment
Mouth, switching circuit and control chip.First communication interface is connected to source terminal, the first communication interface have the first transmission channel,
Second transmission channel and third transmission channel；Switching command is generated when triggering switching switch；First equipment interface is electrically connected at
First communication interface and the first transmission channel；Second equipment interface is electrically connected at the first communication interface and third transmission channel,
Second equipment interface has plural data foot position, and the second equipment interface is for connecting USB device；It is logical that switching circuit is connected to first
Interface is interrogated, switching circuit is used to select the connection path of the second transmission channel；Controlling chip includes GPIO foot position, controls wafer electric
Property be connected to switching circuit, control chip switches the second transmission channel according to the type of USB device and is connected to the first equipment interface
Or second equipment interface, or the second transmission channel is connected to the first equipment interface according to switching command by control chip.
The application separately proposes a kind of resource switch method of usb hub, is the following steps are included: USB device is connected
It is connected to the first equipment interface of hub；The GPIO foot position of hub is triggered by USB device, for identification the type of USB device；
If USB device system is USB1.0 or USB2.0, the second transmission channel is connected to the first equipment interface by hub；If USB is set
Standby system is USB3.0, then the second transmission channel is connected to the second equipment interface by hub；Reset the second equipment interface and control
The transmission clock pulse of chip.
Compared with prior art, the application can be obtained including following technical effect:
1) the resource switch System and method for of usb hub provided herein can guarantee USB device transmission quality
With the play quality of display equipment, and the transmission of data is not influenced in handoff procedure.
2) the erroneous judgement situation when resource switch system of the usb hub of the application can switch to avoid image and data.
Certainly, any product for implementing the application must be not necessarily required to reach all the above technical effect simultaneously.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.
1st figure system is the system architecture schematic diagram of the application.
2nd figure system is the transmission channel connection schematic diagram of the application.
3rd figure system is the operation workflow schematic diagram of the application.
4th figure system is the status diagram of the USB device connection and transmission channel of the application.
5th figure system is another status diagram of the USB device connection and transmission channel of the application.
6th figure system is the operation workflow schematic diagram of the application.
The status diagram of transmission channel when 7th figure system is the switching switch triggering of the application.
Specific embodiment
It please cooperate accompanying drawings and embodiments that presently filed embodiment is described in detail below, how the application is applied whereby
Technological means solves technical problem and reaches the realization process of technical effect to fully understand and implement.
The application proposes a kind of resource switch system 100 of usb hub, is including hub 110, source terminal 120
With USB device 130 (Universal Serial Bus, abbreviation USB), and please cooperate shown in the 1st figure.Hub 110 includes control
Combinations piece 111, switching circuit 112, switching switch 113, first communicates interface 114, the first equipment interface 115 connects with the second equipment
Mouth 116.It is using heavy black article as being electrically connected in 1st figure, and arrow represents the transmission path of signal.
It controls chip 111 and couples source terminal 120, switching circuit 112, switching switch 113, the first equipment interface 115 and the
Two equipment interfaces 116.Control chip 111 have universal input and output (General-purpose input/output,
Abbreviation GPIO) foot position 117, and GPIO foot position 117 is connected to the second equipment interface 116.Control chip 111 is set for detecting USB
Standby 130 type and the connection path for driving switching circuit 112.Switch switch 113 to be used to switch the second transmission channel 121b
And it is connected to the second equipment interface 116.The type of switching switch 113 can be but be not limited to push switch, thumb-acting switch,
It can be the element that rotary switch etc. has transmittable triggering signal.
Source terminal 120 can be but be not limited to PC, notebook computer, be also possible to image output and money
Expect the computer installation of access, such as: mobile phone (mobile phone) or tablet computer (tablet).Source terminal 120 has
There is the second communication interface 121, the second communication interface 121 has the first transmission channel 121a, the second transmission channel 121b and third
Transmission channel 121c.Source terminal 120 is through the first transmission channel 121a, the second transmission channel 121b and third transmission channel 121c
Transmit image data or data information.
First communication interface 114, second communicates interface 121 and 116 system of the second equipment interface is USB interface, the first communication
The protocol type system of interface 114 and the second communication interface 121 is USB3.0 series, the protocol type system of the second equipment interface 116
For the series of USB1.0,2.0 or 3.0.First equipment interface, 115 system is display port (Display Port) or high picture quantity multimedia
Interface (High Definition Multimedia Interface, abbreviation HDMI).First equipment interface 115 is aobvious for connecting
Show equipment 140, and image output data extremely display equipment 140.First equipment interface 115 can transmit high-res image quality film
(High Definition or Full High Definition Video) or super-resolution degree image quality film (Ultra HD
Video)。
First transmission channel 121a by TX1 ± with RX1 ± two groups of differential signal lines constitute (totally four signal line),
And the second transmission channel 121b by TX2 ± with RX2 ± two groups of differential signal lines constituted.Third transmission channel 121c by
The D+ and D- of USB2.0 is constituted.In other words, the first transmission channel 121a has two groups of channels that can transmit image data.
Similarly, the second transmission channel 121b is also with two groups of channels for transmission image data or data information, such as the 2nd figure institute
Show.And third transmission channel 121c is then the data information for transmitting USB.Connecting line indicates that the electrical property of interelement connects in the 2nd figure
It connects, and arrow head part indicates the transmission path in channel.
First communication 114 system of interface is connected to the second communication interface 121 with cable, so that the first communication interface 114 is connected
First transmission channel 121a, the second transmission channel 121b and third transmission channel 121c.Switching circuit 112 is separately connected the second biography
Defeated channel 121b, the first equipment interface 115 and the second equipment interface 116.Switching circuit 112 is for switching the second transmission channel
The destination of 121b, so that the second transmission channel 121b, which can choose, is connected to the first equipment interface 115 or the second equipment interface
116.The second equipment interface 116 is electrically connected at the GPIO foot position 117 of control chip 111 in this application.Therefore hub 110
It can identify the type of connected USB device 130 in turn through the triggering content of GPIO foot position 117.
It is operation workflow schematic diagram for the application shown in the 3rd figure that the application, which please refers to, to clearly illustrate.In the application
Usb hub resource switch method the following steps are included:
Step S310: USB device is connected to the first equipment interface of hub；
Step S320: the GPIO foot position of hub is triggered by USB device, for identification the type of USB device；
Step S330: if USB device system is USB1.0 or USB2.0, the second transmission channel is connected to first by hub
Equipment interface；
Step S340: if USB device system is USB3.0, the second transmission channel is connected to the second equipment and connect by hub
Mouthful；And
Step S350: the second equipment interface of resetting and the transmission clock pulse for controlling chip.
When the second equipment interface 116 connects the USB device 130 for supporting the communications protocol of USB2.0 (or to drop), GPIO
Foot position 117 can detect the D of USB device 130 ± signal and trigger control chip 111.It controls chip 111 and drives switching circuit
Second transmission channel 121b is connected to the first equipment interface 115 by 112, as shown in Fig. 4.When the second equipment interface 116 connects
USB3.0 (or more) communications protocol USB device 130 when, due to GPIO foot position 117 will not receive D ± signal, because
This control chip 111 drives switching circuit 112 that second transmission channel 121b is connected to the second equipment interface 116, such as the 5th figure
It is shown.
In the handoff procedure for carrying out the second transmission channel 121b, in addition control chip 111 can reset (reset) to USB
The transmission clock pulse of equipment 130, so as to transmitting data information again to USB device 130 (or source terminal 120).Due to transmission channel
The change of quantity will affect configuration of the source terminal 120 for data information, therefore controls chip 111 and need to reset transmission clock pulse.
If the second equipment interface 116 connects new USB device 130, new USB device 130 belongs to identical with previous USB device 130
Communications protocol, then transmission clock pulse will not be reset by controlling chip 111.
As an example it is assumed that the first equipment 151 of the second equipment interface 116 connection USB2.0.Second transmission channel 121b
The first equipment interface 115 can be connected to.If the first equipment 151 is removed and installs the second equipment 152 by user, and second sets
Standby 152 be also USB2.0 (or 1.0) series.Control chip 111 will not switch the second transmission channel 121b.If the second equipment
152 for USB3.0 (or more) communications protocol, control chip 111 and second transmission channel 121b be connected to the second equipment interface
116。
In step S330, user can trigger the switching switch 113 of hub 110, please cooperate the 6th figure institute simultaneously
Show, is the processing flow schematic diagram of the triggering switching switch 113 for the application.It include with step in triggering switching switch 113
It is rapid:
Step S331: the switching switch of hub is triggered；And
Step S332: the second transmission channel is switched and is connected to the first equipment interface by driving hub.
When hub 110 connects the USB device 130 of USB3.0, the second transmission channel 121b is default to be connected to second
Equipment interface 116.When user presses toggle switch 113, control chip 111 is according to triggering signal by the second transmission channel
121b switches to the first equipment interface 115 from the second equipment interface 116, as shown in Fig. 7.Simultaneously, chip 111 is controlled
Also transmission clock pulse can be reset, has ensured that source terminal 120 is synchronous with USB device 130 and guarantees the integrality of data information.When
When the display equipment 140 that one equipment interface 115 is connected is removed, control chip 111 can just drive switching circuit 112 by the
Two transmission channel 121b reconfigurations to the first equipment interface 115.In addition, if second passes when the second equipment interface 116 connects for sky
Defeated channel 121b is default to be connected to the second equipment interface 116.
The resource switch system 100 of the usb hub 110 of the application can be according to the USB device being connect with method
The transmission channel of 130 determination data data and image data, the quality played so as to guaranteeing image.And the hub of the application
110 can identify the communications protocol type of connected USB device 130, and then select corresponding transmission channel quantity.Compared to
For known techniques, the application is not required to source terminal 120 and driving formula as identification service condition, therefore the application can be to avoid
The problem of automatic switchover of image analytic degree.
Described device is corresponding with method flow above-mentioned description, and shortcoming refers to the narration of above method process, no longer
It repeats one by one.Above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the application
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through within that scope of the inventive concept describe herein
It is modified.And changes and modifications made by those skilled in the art do not depart from spirit and scope, then it all should be in this Shen
It please be in the protection scope of appended claims.
Claims (10)
1. a kind of resource switch system of usb hub, it is characterised in that switch the data transmission channel of source terminal and for providing
The acceleration of material is transmitted, and the resource switch system of usb hub includes:
One source terminal has one second communication interface, which has one first transmission channel, one second transmission logical
Road and a third transmission channel；
One USB device；And
One hub is electrically connected at the source terminal and the USB device, the hub have a switching circuit, one switching switch,
One first communication interface, one first equipment interface, one second equipment interface control chip with one, the switching circuit be coupled to this
One communication interface, first equipment interface, second equipment interface and the control chip, switching switch are connected to control crystalline substance
Piece, the first communication interface are connected to the second communication interface, which is used to select the path of second transmission channel,
First transmission channel is connected to first equipment interface, which is connected to second equipment interface, this first
Equipment interface and second equipment interface are electrically connected to a GPIO foot position of the control chip, second equipment interface connection
The USB device, the control chip identify the communication type of the USB device through the GPIO foot position, and determine that second transmission is logical
Road is connected to first equipment interface or second equipment interface.
2. the resource switch system of usb hub as described in claim 1, it is characterised in that the type of the USB device includes
USB1.0 series, USB2.0 series and USB3.0 series.
3. the resource switch system of usb hub as described in claim 1, it is characterised in that the type of the USB device is
USB1.0 or USB2.0, then the control chip sends a first requirement to the source terminal, so that second transmission channel is connected to
First equipment interface, the type of the USB device are USB3.0 or USB3.1, then the control chip sends one the to the source terminal
Two require, so that second transmission channel is connected to second equipment interface.
4. the resource switch system of usb hub as described in claim 1, it is characterised in that enable switching switch makes the control
Combinations piece sends a first requirement to the source terminal, and second transmission channel is enabled to be connected to first equipment interface.
5. a kind of usb hub, it is characterised in that switch transmitting of the transmission channel of data to accelerate data, the USB set line
Device includes:
One first communication interface, is connected to a source terminal, which has one first transmission channel, one second transmission
Channel and a third transmission channel；
One switching switch generates a switching command when triggering switching switch；
One first equipment interface is electrically connected at the first communication interface and first transmission channel；
One second equipment interface is electrically connected at the first communication interface and the third transmission channel, second equipment interface tool
There is plural data foot position, second equipment interface is for connecting a USB device；
One switching circuit, is connected to the first communication interface, which is used to select the link road of second transmission channel
Diameter；And
One control chip, is including a GPIO foot position, which is connected to the switching circuit, the control chip root
Switch second transmission channel according to the type of the USB device and be connected to first equipment interface or second equipment interface, or should
It controls chip and second transmission channel is connected to by first equipment interface according to the switching command.
6. usb hub as claimed in claim 5, it is characterised in that the type of the USB device include USB1.0 series,
USB2.0 series and USB3.0 series.
7. usb hub as claimed in claim 6, it is characterised in that the type of the USB device is USB1.0 or USB2.0, then
The control chip sends a first requirement to the source terminal, so that second transmission channel is connected to first equipment interface, it should
The type of USB device be USB3.0 or USB3.1, then the control chip to the source terminal send one second require so that this second
Transmission channel is connected to second equipment interface.
8. a kind of usb hub, it is characterised in that switch transmitting of the transmission channel of data to accelerate data, the USB set line
Device includes:
One first communication interface, is connected to a source terminal, which has one first transmission channel, one second transmission
Channel and a third transmission channel；
One switching switch generates a switching command when triggering switching switch；
One control chip；
One first equipment interface, is electrically connected at the first communication interface and first transmission channel, which connects
Connect a display equipment；
One second equipment interface is electrically connected at the first communication interface and the third transmission channel, second equipment interface tool
There is plural data foot position, which connects a USB device；And
One switching circuit is connected to the first communication interface and the control chip；
Wherein, when which is connected to first equipment interface, which issues one and extends display identification information extremely
The control chip, by the switching circuit select second transmission channel be connected to first equipment interface or second equipment connects
Mouthful.
9. usb hub as claimed in claim 8, it is characterised in that if extension display identification information includes one surpassing news of taking stock of assets
(ultra-resolution information), then second transmission channel is connected to first equipment and connect by the control circuit
Mouthful.
10. usb hub as claimed in claim 8, it is characterised in that if extension display identification information includes one full HD
Money (full HD-resolution information) news one surpass news of taking stock of assets, then the control circuit is by second transmission channel
It is connected to second equipment interface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920582384.0U CN209543330U (en) | 2019-04-26 | 2019-04-26 | The resource switch system of usb hub |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920582384.0U CN209543330U (en) | 2019-04-26 | 2019-04-26 | The resource switch system of usb hub |
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| CN209543330U true CN209543330U (en) | 2019-10-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111858420A (en) * | 2019-04-26 | 2020-10-30 | 昆山尚尼司电子科技有限公司 | Resource switching system of USB hub |
| CN112131160A (en) * | 2020-09-27 | 2020-12-25 | 北京海益同展信息科技有限公司 | Working mode switching circuit, working mode switching method and robot |
-
2019
- 2019-04-26 CN CN201920582384.0U patent/CN209543330U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111858420A (en) * | 2019-04-26 | 2020-10-30 | 昆山尚尼司电子科技有限公司 | Resource switching system of USB hub |
| CN112131160A (en) * | 2020-09-27 | 2020-12-25 | 北京海益同展信息科技有限公司 | Working mode switching circuit, working mode switching method and robot |
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