CN105808461B - A kind of USB composite system and method - Google Patents
A kind of USB composite system and method Download PDFInfo
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- CN105808461B CN105808461B CN201410852522.4A CN201410852522A CN105808461B CN 105808461 B CN105808461 B CN 105808461B CN 201410852522 A CN201410852522 A CN 201410852522A CN 105808461 B CN105808461 B CN 105808461B
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Abstract
The invention discloses a kind of USB composite system and methods.Wherein, the system comprises functional select switches, for selecting operating mode；Controller is connect with the functional select switch, identifies that the operating mode with tissue interface agreement, and generates control instruction or setting configuration information for detecting the selection signal of the functional select switch, and according to the selection signal；Multifunctional equipment is connect with the controller, for receiving the control instruction from the controller, and the operational module specified according to control instruction gating, so that the specified operational module and external equipment carry out data communication；And USB interface, it is connect with the controller, for connecting the multifunctional equipment and the external equipment by the controller.Existing USB device is carried out operational module that is compound, and gating specified as needed by the present invention in the form of operational module, solves the problems, such as existing USB device redundancy.
Description
Technical field
The present invention relates to USB digital equipments, and in particular, to a kind of USB composite system and method.
Background technique
USB is an external bus standard, for being connected and communicate with for specification computer and external equipment.USB interface is mesh
One of preceding most popular PC interface.The plug and play and warm connection function of USB interface holding equipment.USB interface can be used for connecting
Up to 127 kinds of peripheral hardwares, such as mouse, modem and keyboard.USB be the end of the year 1994 by Intel, Compaq, IBM,
Microsoft Deng Duo company joint proposes, after releasing from 1996, successfully substitutes serial ports and parallel port, and become current
One of the interface that must match of PC and a large amount of smart machines.USB device currently on the market is thousands of, they are wide
It is general to be applied in the Working Life of people.But these existing USB devices mostly have a single function, and can be only done its fixed class
Other work.When user needs to use multiple USB devices, user have to go to buy them respectively, and it is outgoing when must band
Upper all these equipment.This causes the waste of resource and the increase of cost to a certain extent, and also adds user's
Burden.
Summary of the invention
The object of the present invention is to provide a kind of USB composite system and method, the system by existing USB device with work
The form for making module carries out operational module that is compound, and gating specified as needed, solves existing USB device redundancy
Problem.
To achieve the goals above, the present invention provides a kind of USB composite system.The system comprises: functional select switch,
For selecting operating mode；Controller is connect with the functional select switch, for detecting the selection of the functional select switch
Signal, and identify that the operating mode with tissue interface agreement, and generates control instruction or setting according to the selection signal
Configuration information；Multifunctional equipment is connect with the controller, for receiving the control instruction from the controller, and according to
The specified operational module of the control instruction gating, leads to so that the specified operational module and external equipment carry out data
Letter；And USB interface, it is connect with the controller, for connecting the multifunctional equipment and described outer by the controller
Portion's equipment.
Correspondingly, the present invention also provides a kind of USB complex methods.The described method includes: the choosing of detection function selection switch
Select signal；And identify that operating mode with tissue interface agreement, and generates control instruction or setting according to the selection signal
Configuration information, to gate specified operational module, so that the specified operational module and external equipment carry out data communication.
Through the above technical solutions, being carried out in the form of operational module to existing USB device compound, and select as needed
Lead to specified operational module, so that specified operational module and external equipment carry out data communication.This is not only solved
The problem of existing USB device redundancy, and also avoid the waste of resource.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of USB composite system provided by the invention；
Fig. 2 is the structural schematic diagram of pullup resistor in the specific embodiment of the invention；
Fig. 3 is the structural schematic diagram of the multifunctional equipment of USB composite system provided by the invention；
Fig. 4 is the flow chart of USB complex method provided by the invention；And
Fig. 5 is the schematic diagram of the digital switch in multifunctional equipment provided by the invention.
Description of symbols
10 functional select switch, 20 controller
30 multifunctional equipment, 40 USB interface
50 control circuit, 60 image module
70 audio-frequency module, 80 high-capacity storage module
90 smart card modules 100 extend mouth mold block
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 1 is the structural schematic diagram of USB composite system provided by the invention.As shown in Figure 1, USB provided by the invention is multiple
Collaboration system includes: functional select switch 10, for selecting operating mode；Controller 20 is connect with the functional select switch 10,
Identify the operating mode with group for detecting the selection signal of the functional select switch 10, and according to the selection signal
Interface protocol is knitted, and generates control instruction or setting configuration information；Multifunctional equipment 30 connect with the controller 20, is used for
The control instruction from the controller 20, and the operational module specified according to control instruction gating are received, so that institute
It states specified operational module and external equipment and carries out data communication；And USB interface 40, it connect, is used for the controller 20
The multifunctional equipment 30 and the external equipment are connected by the controller 20.
Wherein, the functional select switch may include pull-up rheostat.Fig. 2 is that electricity is pulled up in the specific embodiment of the invention
Hinder the structural schematic diagram of device.As shown in Fig. 2, the rheostatic resistance value of pull-up can be changed by pulling up the rheostatic end P by sliding.?
In a specific embodiment of the invention, it is desirable that pull-up rheostat provides 6 different resistance values, this means that pull-up is rheostatic
The end P will slide into 6 different positions.Wherein, pulling up rheostatic 6 different resistance values represents USB provided by the invention
6 kinds of different operating modes of composite system.According to Ohm's law, pulling up voltage value corresponding to rheostatic each resistance value is
Different.Therefore, the controller 20 can pull up rheostatic voltage value by detection to identify the Working mould of USB composite system
Formula.
Wherein, the functional select switch 10 is connect by the port AD of the controller 20 with the controller 20.Separately
Outside, the port AD is also used to convert analog selection signal to digital selection signal.
Wherein, the multifunctional equipment 30 passes through the port UART of the controller 20 and USB port and the controller
20 connections.The control instruction that the controller 20 generates enters the multifunctional equipment 30 by the port UART of itself, and
Data information in the multifunctional equipment 30 between appointed operational module and the external equipment first passes through the control
The USB port of device 20 enters the controller 20.Then, external equipment is entered by USB interface 40 by controller 20.
Fig. 3 is the structural schematic diagram of the multifunctional equipment of USB composite system provided by the invention.As shown in figure 3, it is preferred that
Ground, the multifunctional equipment 30 include one or more of control circuit 50 and following operational module: image module 60 is used for
Image information is obtained from the external world；Audio-frequency module 70, for obtaining audio-frequency information from the external world or playing from the external equipment
The content of audio-frequency information；High-capacity storage module 80, for storing the data information from the external equipment；Smart card module
90, for reading information from the smart card or the smart card being written from the information of the external equipment；Extend mouth mold
Block 100, for connecting other operational modules, wherein the control circuit 50 and described image module 60, audio-frequency module 70, big
The connection of one or more of capacity storage module 80, smart card module 90 and extension mouth mold block 100, comes from institute for receiving
The control instruction of controller 20 is stated, and described image module 60, audio-frequency module 70, large capacity are gated according to the control instruction and deposited
One or more of module 80, smart card module 90 and extension mouth mold block 100 are stored up, so that described image module 60, sound
Frequency module 70, high-capacity storage module 80, smart card module 90 and extension one or more of mouth mold block 100 with it is described outer
Data communication is carried out between portion's equipment.Whereby, the problem of not only solving existing USB device redundancy, and also improve USB
The scalability of composite system.
Preferably, the control circuit 50 includes: command line, is referred to for delivering the control from the controller 20
It enables；Digital switch, for gating corresponding operational module in closure；Chip is controlled, with the command line and the number
Switch connection, for the digital switch to be opened or closed according to the control instruction；And data/address bus, in the figure
When being strobed as one or more of module, audio-frequency module, high-capacity storage module, smart card module and extension mouth mold block
Deliver one of described image module, audio-frequency module, high-capacity storage module, smart card module and extension mouth mold block or more
Data information between person and the external equipment.It follows that the component division of labor that the control circuit 50 is included is clear.By
This, can be improved the working efficiency of the control circuit 50.
Preferably, the USB interface 40 has with one of Types Below or a variety of: Type A, Type B, Mini and
Micro.Whereby, USB composite system can be attached with the external equipment with different types of USB interface, so that USB is compound
System is promoted well in specific application.
USB complex method provided by the invention includes: the selection signal of 20 detection function of controller selection switch；Controller
20 according to the selection signal identify operating mode with tissue interface agreement, and generate control instruction or setting configuration information,
To gate specified operational module, so that the specified operational module and external equipment carry out data communication.Fig. 4 is this hair
The flow chart of the USB complex method of bright offer.Specifically, as shown in figure 4, in step s101,20 detection function of controller is selected
Select the selection signal of switch.In step s 102, controller 20 judges whether operating mode is image model according to selection signal.
In step s 103, controller 20 according to the selection signal judge the operating mode be image model in the case where,
Organization chart picture class interface protocol.In step S104, controller 20 sends the first control instruction to multifunctional equipment to gate figure
As module, so that described image module and the external equipment carry out data communication.In step s105,20 basis of controller
In the case that selection signal judges that operating mode is not image model, continue to judge whether operating mode is sound according to selection signal
Frequency mode.In step s 106, controller 20 is judging that the operating mode is audio mode according to the selection signal
In the case of, organizing audio class interface protocol.In step s 107, controller 20 to multifunctional equipment send the second control instruction with
Audio-frequency module is gated, so that the audio-frequency module and the external equipment carry out data communication.In step S108, controller
In the case that 20 judge that operating mode is not audio mode according to selection signal, continue to judge that operating mode is according to selection signal
No is massive store mode.In step S109, controller 20 is judging the operating mode according to the selection signal
In the case where massive store mode, mass storage class interface protocol is organized.In step s 110, it is sent out to multifunctional equipment
Send third control instruction to gate high-capacity storage module, so that the high-capacity storage module and the external equipment carry out
Data communication.In step S111, controller 20 according to selection signal judges operating mode not and is the feelings of massive store mode
Under condition, continue to judge whether operating mode is intelligent mode card according to selection signal.In step S112, controller 20 is in basis
In the case that the selection signal judges the operating mode for intelligent mode card, Organizational Intelligence card class interface protocol.In step
In rapid S113, controller 20 sends the 4th control instruction to gate smart card module, so that the intelligence to multifunctional equipment
Card module and the external equipment carry out data communication.In step S114, controller 20 judges Working mould according to selection signal
In the case that formula is not intelligent mode card, continue to judge whether operating mode is composite mode according to selection signal.In step
In S115, controller 20 reads and protects in the case where judging that the operating mode is composite mode according to the selection signal
The configuration information deposited.In step S116, controller 20 is according to the configuration information tissue complex class interface protocol.In step
In S117, controller 20 sends the 5th control instruction to multifunctional equipment to gate described image module, the audio-frequency module, institute
One or more of high-capacity storage module, the smart card module and extension mouth mold block are stated, so that described image mould
One or more of block, the audio-frequency module, the high-capacity storage module, the smart card module and extension mouth mold block
Data communication is carried out with the external equipment.In step S118, controller 20 judges operating mode not according to selection signal and is
In the case where composite mode, it can directly judge to obtain operating mode as programming mode.In step S119, controller 20 passes through
USB interface and the external equipment carry out data communication so that the configuration information is arranged.In the step s 120, controller 20 saves
The configuration information.
In a particular embodiment, user USB composite system provided by the invention obtain it is electric before can be as desired by
The operating mode of the selection of functional select switch 10 system.The system obtain it is electric after controller 20 detection function selection switch 10
Selection signal, and digital selection signal is converted for analog selection signal by the port AD of itself.
According to the above method, in the case that controller 20 identifies that operating mode is image model according to selection signal,
20 organization chart picture class interface protocol of controller, and generate the first control instruction.Multifunctional equipment 30 passes through the end UART of controller
Mouth receives the first control instruction.First control instruction is carried to control chip by the command line of control circuit 50.Fig. 5 is this hair
The schematic diagram of digital switch in the multifunctional equipment of bright offer.As shown in figure 5, control chip can be closed according to the first control instruction
Digital switch K1 is closed to gate image module 60.At this point, image module 60 and external equipment can carry out data communication.Image module
The image information that 60 integrated CCD and image chip are obtained from the external world is first carried to controller 20 by data/address bus.Then, by controlling
Device 20 processed enters external equipment by USB interface 40.
According to the above method, in the case that controller 20 identifies that operating mode is audio mode according to selection signal,
20 organizing audio class interface protocol of controller, and generate the second control instruction.Multifunctional equipment 30 passes through the end UART of controller
Mouth receives the second control instruction.Second control instruction is carried to control chip by the command line of control circuit 50.Such as Fig. 5 institute
Show, control chip can be closed digital switch K2 according to the second control instruction to gate audio-frequency module 70.At this point, audio-frequency module 70 with
External equipment can carry out data communication.The audio-frequency information that the integrated MIC of audio-frequency module 70 and audio chip are obtained from the external world first by
Data/address bus is carried to controller 20.Then, external equipment is entered by USB interface 40 by controller 20.User can also lead to
It crosses external equipment and sends audio-frequency module 70 for audio-frequency information.The integrated loudspeaker of audio-frequency module 70 can be played from external equipment
The content of audio-frequency information.Audio-frequency information from external equipment first passes through USB interface 40 and enters controller 20.Then, by controlling
Device 20 processed enters audio-frequency module 70 by data/address bus.
According to the above method, when controller 20 identifies that operating mode is the feelings of massive store mode according to selection signal
Under condition, controller 20 organizes mass storage class interface protocol, and generates third control instruction.Multifunctional equipment 30 passes through control
The port UART of device receives third control instruction.Third control instruction is carried to control core by the command line of control circuit 50
Piece.As shown in figure 5, control chip can be closed digital switch K3 according to third control instruction to gate high-capacity storage module 80.
At this point, high-capacity storage module 80 and external equipment can carry out data communication.User not only can be to large capacity by external equipment
Data information in memory module 80 is deleted, but also can be looked into the data information in high-capacity storage module 80
It sees.In addition, user can also be by external equipment by data information memory to mass-memory unit.The transmission process of data information
Similar with the above process, details are not described herein.
According to the above method, when controller 20 identifies the case where operating mode is intelligent mode card according to selection signal
Under, 20 Organizational Intelligence card class interface protocol of controller, and generate the 4th control instruction.Multifunctional equipment 30 passes through controller
The port UART receives the 4th control instruction.4th control instruction is carried to control chip by the command line of control circuit 50.Such as
Shown in Fig. 5, control chip can be closed digital switch K4 according to the 4th control instruction to gate smart card module 90.At this point, intelligence
Card module 90 and external equipment can carry out data communication.User can not only check what smart card module 90 integrated by external equipment
The information that intelligent card chip is read from smart card, but also smart card can be write information into.The transmission process of information and above-mentioned mistake
Journey is similar, and details are not described herein.
According to the above method, in the case that controller 20 identifies that operating mode is composite mode according to selection signal,
Controller 20 reads the configuration information saved to organize complex class interface protocol, and generates the 5th control instruction.Multifunctional equipment
30 receive the 5th control instruction by the port UART of controller.5th control instruction is delivered by the command line of control circuit 50
To control chip.As shown in figure 5, control chip can be closed digital switch K1, K2, K3, K4 and K5 according to the 5th control instruction
One or more of with gate image module 60, audio-frequency module 70, high-capacity storage module 80, smart card module 90 and expand
Open up one or more of mouth mold block 100.At this point, image module 60, audio-frequency module 70, high-capacity storage module 80, smart card
One or more of module 90 and extension mouth mold block 100 can carry out simultaneously data communication with external equipment.Data information
Transmission process is similar with the above process, and details are not described herein.
Wherein, extension mouth mold block 100 is used for as spare operational module.In daily life, some USB being of little use
Equipment can access USB composite system provided by the invention by the extension mouth in extension mouth mold block 100.In extension mouth mold block 100
In the case where being strobed, the USB device accessed can carry out data communication with external equipment.In addition, in extension mouth mold block 100
Extension mouth supports the interface type under all usb protocols.Whereby, the scalability of USB composite system provided by the invention is enhanced.
According to the above method, in the case that controller 20 identifies that operating mode is programming mode according to selection signal,
Controller 20 carries out data communication by USB interface and external equipment to create human-computer interaction interface.User can pass through man-machine friendship
Configuration information in mutual interface setting controller 20.When user completes the setting of configuration information, controller 20 saves user and sets
The configuration information set.
The present invention is compound being carried out in the form of operational module to existing USB device, and gating is signified as needed
Fixed operational module solves existing USB device so that specified operational module and external equipment carry out data communication
The problem of redundancy, and also avoid the waste of resource.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (6)
1. a kind of USB composite system, which is characterized in that the system comprises:
Functional select switch, for selecting operating mode；
Controller is connect with the functional select switch, for detecting the selection signal of the functional select switch, and according to institute
State selection signal identify the operating mode with tissue interface agreement, and generate control instruction or setting configuration information；
Multifunctional equipment is connect with the controller, for receiving the control instruction from the controller, and according to the control
The specified operational module of system instruction gating, so that the specified operational module and external equipment carry out data communication；And
USB interface is connect with the controller, is set for connecting the multifunctional equipment by the controller with the outside
It is standby；
Wherein, the multifunctional equipment includes more persons in control circuit and following operational module:
Image module, for obtaining image information from the external world；
Audio-frequency module, the content for the audio-frequency information from the external equipment from extraneous acquisition audio-frequency information or broadcasting；
High-capacity storage module, for storing the data information from the external equipment；
Smart card module, for reading information from the smart card or the intelligence being written from the information of the external equipment
Card；And
Mouth mold block is extended, for connecting other operational modules；
The controller reads and saves in the case where identifying that the operating mode is composite mode according to the selection signal
Configuration information, and according to the configuration information so that described image module, the audio-frequency module, the high-capacity storage module,
The smart card module and more persons and external equipment progress data communication in extension mouth mold block；
Wherein, the control circuit and described image module, audio-frequency module, high-capacity storage module, smart card module and expansion
More persons connection in mouth mold block is opened up, is gated for receiving the control instruction from the controller, and according to the control instruction
More persons in described image module, audio-frequency module, high-capacity storage module, smart card module and extension mouth mold block, so that
Described image module, audio-frequency module, high-capacity storage module, smart card module and more persons in extension mouth mold block and described outer
Data communication is carried out between portion's equipment.
2. system according to claim 1, which is characterized in that the control circuit includes:
Command line, for delivering the control instruction from the controller；
Digital switch, for gating corresponding operational module in closure；And
Chip is controlled, is connect with the command line and the digital switch, for being opened or closed according to the control instruction
The digital switch.
3. system according to claim 1, which is characterized in that the controller is identifying institute according to the selection signal
In the case where operating mode is stated as programming mode, data communication is carried out to be arranged by the USB interface and the external equipment
The configuration information, and save the configuration information.
4. system according to claim 1, which is characterized in that the USB interface has with one of Types Below or more
Person: Type A, Type B, Mini and Micro.
5. a kind of USB complex method, which is characterized in that the described method includes:
The selection signal of detection function selection switch；
Identify that operating mode with tissue interface agreement, and generates control instruction or setting with confidence according to the selection signal
Breath, to gate specified operational module, so that the specified operational module and external equipment carry out data communication；And
In the case where identifying that the operating mode is composite mode according to the selection signal, that reads preservation matches confidence
Breath, and according to the configuration information, so that image module, audio-frequency module, high-capacity storage module, smart card module and extension mouth
More persons and the external equipment in module carry out data communication.
6. USB complex method according to claim 5, which is characterized in that the method also includes:
According to the selection signal identify the operating mode be programming mode in the case where, by the USB interface with
The external equipment carries out data communication so that the configuration information is arranged, and saves the configuration information.
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| CN201410852522.4A CN105808461B (en) | 2014-12-31 | 2014-12-31 | A kind of USB composite system and method |
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| CN201410852522.4A CN105808461B (en) | 2014-12-31 | 2014-12-31 | A kind of USB composite system and method |
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| CN105808461A CN105808461A (en) | 2016-07-27 |
| CN105808461B true CN105808461B (en) | 2019-08-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106897242B (en) * | 2017-01-17 | 2020-09-29 | 建荣集成电路科技(珠海)有限公司 | USB composite equipment and working method thereof |
| CN111221768B (en) * | 2020-01-10 | 2024-05-31 | 珠海趣印科技有限公司 | USB equipment composite communication method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425049A (en) * | 2008-11-29 | 2009-05-06 | 中兴通讯股份有限公司 | Customer equipment based on USB and data channel switching method |
| CN102043462A (en) * | 2010-10-26 | 2011-05-04 | 青岛海信宽带多媒体技术有限公司 | USB equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6779059B2 (en) * | 2001-08-21 | 2004-08-17 | O2Micro International Limited | Reconfigurable flash media reader system |
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2014
- 2014-12-31 CN CN201410852522.4A patent/CN105808461B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425049A (en) * | 2008-11-29 | 2009-05-06 | 中兴通讯股份有限公司 | Customer equipment based on USB and data channel switching method |
| CN102043462A (en) * | 2010-10-26 | 2011-05-04 | 青岛海信宽带多媒体技术有限公司 | USB equipment |
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