CN102831084A - Controller and controlling method for re-identifying USB (universal serial bus) equipment - Google Patents
Controller and controlling method for re-identifying USB (universal serial bus) equipment Download PDFInfo
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- CN102831084A CN102831084A CN2012102928218A CN201210292821A CN102831084A CN 102831084 A CN102831084 A CN 102831084A CN 2012102928218 A CN2012102928218 A CN 2012102928218A CN 201210292821 A CN201210292821 A CN 201210292821A CN 102831084 A CN102831084 A CN 102831084A
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Abstract
The invention discloses a controller and a controlling method for re-identifying USB (universal serial bus) equipment. The controller comprises a first group of USB interface units, a second group of USB interface units, a circuit board, a switch unit and a switch controller, wherein the first group of USB interface units comprises a plurality of USB interfaces which are connected with USB interfaces on a server; the second group of USB interface units comprises a plurality of USB interfaces which are connected with USB interfaces on peripheral equipment; the circuit board is connected with the first group of USB interface units and the second group of USB interface units, and is used for connecting the USB interfaces in the first group of USB interface units and the corresponding USB interfaces in the second group of USB interface units; the switch unit is arranged on the circuit board, is serially connected with at least one power line of each USB interface, and is used for controlling on and off of the power lines of the USB interfaces; and the switch controller is connected with the server and the switch unit, receives on-off instruction information for communication between the USB interfaces and the server, and controls preset switches to be switched on or switched off according to the on-off instruction information. The power lines in the USB interfaces are disconnected and then are connected, so that the server re-identifies the peripheral equipment, and the peripheral equipment is not required to be unplugged and plugged.
Description
Technical field
The present invention relates to a kind of controller of discerning USB device again, the especially a kind of controller of discerning USB device again and control method that is applicable to the control of USB cable break-make.
Background technology
The prior USB interface is usually used in realizing being connected of main frame and peripheral hardware; In the process that connects, the peripheral hardware situation that main frame nonrecognition USB interface is connected can occur, need at first peripheral hardware from USB interface main frame on to be pulled up come in order to realize that main frame and the normal of peripheral hardware are connected this moment; And then be inserted in the USB interface on the main frame; And then be connected again then through peripheral hardware and main frame are cut off the power supply earlier, make main frame discern the peripheral hardware that connects on the USB interface again, reach that main frame normally is connected with peripheral hardware, the purpose of normal communication; Sometimes in order to let main frame discern peripheral hardware again, pull out earlier the action of afterwards inserting to repeat several times.Before dispatching from the factory, all need test various peripheral hardwares (such as mobile phone and notebook computer etc.); Also need in the time of test at first peripheral hardware to be connected with server with test; The situation of testing server nonrecognition peripheral hardware to be measured also happens occasionally in the test process, and the peripheral hardware quantity that connects on the server during in view of each test is bigger, and realizing through plug that main frame is discerned the workload of the method for peripheral hardware again in the prior art can be very big; And find that main frame and peripheral hardware cisco unity malfunction also need the time; Will certainly waste a large amount of stand-by period, end, continue test through plug even find the back at the stand-by period build-in test; Also can make and uncertain prolongation of test duration be unfavorable for the smooth completion of testing.
Chinese patent document CN201508549U discloses a kind of Apparatus and system of controlling the USB break-make; Realization is to the break-make control of the USB interface on the electronic message unit; Avoid the electronic personal information on the electronic message unit to be passed through the USB interface illegal copies by the people; Said apparatus comprises a control command unit and an on-off circuit unit; Wherein, the control command unit is connected with the control end of on-off circuit unit, is used for the closed or disconnection of first switch and the second switch of CS circuit unit; The power port of one USB controller is coupled to the power port of USB interface through first switch, and the first serial data line cap of USB controller is coupled to corresponding first data line ports of USB interface through second switch.Disclosed device of this patent documentation and system not only have the confidentiality of software systems, also have the reliability of hardware system simultaneously.Because the control command of control command unit is many, thus the probability that is cracked reduced greatly, thus strengthened the security of USB interface control greatly.The Apparatus and system of the disclosed control USB of this patent documentation break-make has been realized the break-make control of USB interface on the electronic message unit; But this control depends on the USB controller; Promptly depend on the control chip of USB; Be the equipment that is coupled with USB controller height, realization be the break-make of controlling USB interface on the electronic message unit internally, the control chip that can not be independent of USB works alone; Therefore, can not be used for when server nonrecognition peripheral hardware control direct server and peripheral hardware breaks off earlier and then is connected again and then lets server discern peripheral hardware again.
Summary of the invention
For this reason; To be solved by this invention is that the Apparatus and system of existing control USB break-make can't be implemented under the situation of not plug peripheral hardware Control Server and discerns the technical matters of being inconvenient to test peripheral hardware that peripheral hardware brings once more, and a kind of controller and control method of discerning USB device again is provided.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is following:
A kind of controller of discerning USB device again comprises:
A kind of controller of discerning USB device again comprises:
First group of usb interface unit comprises several USB interfaces, be used for server on USB interface link to each other;
Second group of usb interface unit comprises several USB interfaces, be used for peripheral hardware on USB interface link to each other;
Wiring board connects said first group of usb interface unit and second group of usb interface unit, and corresponding USB interface is connected in the USB interface that is used for realizing said first group of usb interface unit and the said second group of usb interface unit;
Switch element is arranged on the said wiring board, connects with at least one power lead of each USB interface in said first group of usb interface unit, is used to realize the break-make control at least one power lead of said USB interface;
On-off controller; Link to each other with said switch element with said server; Receive the USB interface and the command information of server communication break-make in first group of usb interface unit that said server sends, and break off and closure according to the predetermined switch that said break-make command information is controlled in the said switch element.
Said on-off controller further comprises,
The usb protocol conversion chip will carry out exporting after the protocol conversion from the command information that said server receives;
Programmable logic chip receives the protocol information after the conversion of said usb protocol conversion chip and resolves, and needing to obtain positional information and the CS of the USB interface of control to break off the instruction of closure then earlier and sends to switch element.
The quantity of USB interface is ten in said first group of usb interface unit and the said second group of usb interface unit, and divides equally two-layer setting.
Said first group of usb interface unit and said second group of usb interface unit lay respectively on two relative sides of said second housing.
Also comprise first housing and second housing; Wherein, Said on-off controller is packaged in said first housing; Said first group of usb interface unit, said second group of usb interface unit, said wiring board and said switch element are packaged in said second housing, and form USB interface on the relevant position of said second housing.
Said switch is the G6HK-2-DC5 relay, and said relay is used for realizing the break-make control of two power line signal of USB interface.
Said switch comprises USB2.0 signal specialized simulation switch and relay; Wherein, USB2.0 signal specialized simulation switch is used for realizing the break-make control of USB interface two data lines signals, and said relay is used for realizing the break-make control of two power line signal of USB interface.
The FT245BL chip that said usb protocol conversion chip is a FTDI company; The EPM3064A chip of said programmable logic chip AMTEL company.
Simultaneously; A kind of control method of discerning USB device again is provided; This method has been used the above-mentioned controller of discerning USB device again, has also used the server and the peripheral hardware that link to each other through the said controller of discerning USB device again simultaneously, and the concrete steps of the control method of its realization are following:
S01, server detect the communication situation between peripheral hardware and the server in real time, when detecting communicating interrupt, send the information of communication break-make;
S02, the switch element controller receives the information of said communication break-make, and generates disconnection of control predetermined switch and closed command information and output according to the information of said communication break-make;
S03, switch receive said command information and break off closure then earlier, make server discern peripheral hardware again.
Among the said step S02, specifically comprise with the command information that receives from said server carry out output after the protocol conversion and will change after protocol information resolve and obtain USB interface information and steering order that needs control and the step that sends to switch element.
Technique scheme of the present invention is compared prior art and is had the following advantages:
Again the controller of discerning USB device of the present invention comprises: first group of usb interface unit, comprise several USB interfaces, be used for server on USB interface link to each other; Second group of usb interface unit comprises several USB interfaces, be used for peripheral hardware on USB interface link to each other; Wiring board connects said first group of usb interface unit and second group of usb interface unit, and corresponding USB interface is connected in the USB interface that is used for realizing said first group of usb interface unit and the said second group of usb interface unit; Switch element, series connection is arranged at least one power lead of the USB interface in said first group of usb interface unit, is used for realizing the break-make control at least one power lead of a USB interface; On-off controller; Link to each other with said switch element with said server; Receive USB interface and the information of server communication break-make in first group of usb interface unit that said server sends, and open or turn-off according to the predetermined switch in the said switch element of said break-make information Control; Through when server and peripheral communication interrupt, break off being connected of power lead and server in the USB interface of the controller of discerning USB device again earlier, and then conducting; Be equivalent to peripheral hardware has been carried out once pulling out the operation of plugging again; And then break off afterwards through the elder generation of power lead in the USB interface and to be communicated with, let server discern peripheral hardware again, need not to carry out the operation of plug peripheral hardware; Time saving and energy saving, when the test peripheral hardware, can save plenty of time and manpower.The controller of discerning USB device again among the present invention is totally independent of the USB controller, is the independent peripheral that is independent of server, can be in needs plug and play, versatility strengthens greatly.
On-off controller among the present invention is the devices at full hardware circuit that comprises USB translation-protocol chip and programmable logic controller (PLC) spare, avoids the use of the MCU software systems and introduces uncertainty, guarantees the job stability of USB interface.
Described in the present invention in first group of usb interface unit and the said second group of usb interface unit quantity of USB interface be ten; Guarantee that the controller of discerning USB device again of the present invention at most once can connect ten peripheral hardwares simultaneously; But the time realize open close control to ten peripheral hardwares, control is convenient.
Said first group of usb interface unit and said second group of usb interface unit lay respectively on two relative sides of said second housing, and convenience is connected with server and peripheral hardware.
Through first housing and two housings of second housing are set; The feasible controller overall appearance of discerning USB device again; And also can play the effect of protecting packaged device in the housing simultaneously, and the more important thing is, effectively alleviated the weight of second housing that directly links to each other with server; Second housing after the convenient encapsulation directly is inserted on the server, avoids the too big damage server interface of quality.
Description of drawings
For content of the present invention is more clearly understood, below according to a particular embodiment of the invention and combine accompanying drawing, the present invention is done further detailed explanation, wherein
Fig. 1 is the structural representation of the controller of discerning USB device again of one embodiment of the invention.
Embodiment
Referring to shown in Figure 1, the controller of discerning USB device again as one embodiment of the invention comprises:
First group of usb interface unit; It comprises ten USB interfaces, and ten USB interfaces divide two-layer setting, and every layer comprises five USB interfaces (only illustrating a layer interface in the accompanying drawing); Each USB interface be used for server on a USB interface link to each other, realize communication with server; In the present embodiment, for guaranteeing the enough usefulness of USB interface quantity on the server, used the USB 2.0 PCI-E expansion card MC230 of 5 mouthfuls of two magic castrated rams to link to each other with server master board, realization is to the expansion of server USB interface.
Second group of usb interface unit; Identical with the interface quantity in said first group of usb interface unit; Also comprise ten USB interfaces, ten USB interfaces divide two-layer setting, and every layer of quantity that goes up USB interface is five (only illustrating a layer interface in the accompanying drawing); Each USB interface be used for peripheral hardware on a USB interface link to each other, realize communication with peripheral hardware;
Wiring board; Not shown; Be connected with said first group of usb interface unit and second group of usb interface unit on the wiring board; Being connected of a corresponding USB interface in each USB interface that is used for realizing said first group of usb interface unit and the said second group of usb interface unit, finally realize the connection communication between a server and ten peripheral hardwares, make the controller of discerning USB device again of the present invention at most once can connect ten peripheral hardwares simultaneously; Can realize the control that switches on and off simultaneously, control simple and convenient ten peripheral hardwares;
Switch element; Comprise ten switches; Switch described in the present embodiment is bistable relay G6HK-2-DC5; Each switch all is arranged on the said wiring board, and a power lead of a USB interface in itself and the said first group of usb interface unit is connected in series, and each bistable relay G6HK-2-DC5 is used for realizing the break-make control to a power lead of a USB interface;
On-off controller; Link to each other with said switch element with said server; Receive the USB interface and the information of server communication break-make in first group of usb interface unit that said server sends, and break off and closure according to the predetermined switch in the said switch element of said break-make information Control; The existing concrete course of work with on-off controller is described below: peripheral hardware is example with the mobile phone; Test before mobile phone is connected to and dispatches from the factory on the server; In the mobile phone test process, attend the testing progress of the real-time control and measuring software of testing software on mobile phone at server, interrupt in case detect test; At once judge the communication abnormality of server and mobile phone; At this moment the instruction that can pass through the Windows operating system of server end is issued on-off controller through api interface (Application Programming Interface, API), as a specific embodiment of the present invention; Said on-off controller further comprises usb protocol conversion chip and programmable logic chip; Said server sends to on-off controller through USB interface with instruction, and wherein the instruction of the Windows operating system that receives of on-off controller sends the usb protocol conversion chip earlier to, carries out protocol conversion such as the FT245BL chip of FTDI company; Agreement after the conversion is dealt into programmable logic chip again; EPM3064A programmable logic chip like AMTEL company is resolved the command content that receives, and obtains the positional information of USB interface that can not proper communication, so will control this USB interface breaks off earlier the instruction of afterwards connecting send to corresponding switch element realize to the once shutoff of being scheduled to USB interface and once connection control; Let server identify the mobile phone in the test again through outage, guarantee to test and normally carry out.Said on-off controller among the present invention is the devices at full hardware circuit that comprises USB translation-protocol chip and programmable logic controller (PLC) spare, avoids the use of the MCU software systems and introduces uncertainty, guarantees the job stability of USB interface.
First housing and second housing; Wherein, Said on-off controller is packaged in said first housing, and said first group of usb interface unit, said second group of usb interface unit, said wiring board and said switch element are packaged in said second housing, and said first group of usb interface unit and said second group of usb interface unit lay respectively on two relative sides of said second housing; Rationally lay, make things convenient for the connection between server and the peripheral hardware; Form USB interface on the relevant position of said second housing.Certainly among the present invention USB interface is not offered some clarification on female mouthful of public mouthful of USB or USB, but to those skilled in the art, a pair of USB interface that is connected inevitable one be public mouthful of USB another be female mouthful of USB, to no longer distinguishing explanation among this present invention.
Through when server and peripheral communication interrupt, being connected of power lead and server in the USB interface of controller of USB device discerned in disconnection earlier again, and then conducting in the present embodiment; Be equivalent to peripheral hardware has been carried out once pulling out the operation of plugging again; And then the elder generation through power supply breaks off afterwards and being communicated with, and lets server discern peripheral hardware again, need not to carry out the operation of plug peripheral hardware; Time saving and energy saving, when the test peripheral hardware, can save plenty of time and manpower.The controller of discerning USB device again among the present invention is totally independent of the USB controller, is the independent peripheral that is independent of server, can be in needs plug and play, versatility strengthens greatly.
As other embodiments of the invention; Said switch comprises MAX4906EF and G6HK-2-DC5 relay; Wherein MAX4906EF realizes the break-make control to two data lines in the USB interface; The G6HK-2-DC5 relay is realized the control to two power leads in the USB interface, has realized the separately control to data line in the USB interface and power lead, makes that also break-make is more thorough.Other can realize the object of the invention equally with above-mentioned embodiment, belongs to protection scope of the present invention.
As other embodiments of the invention; When not realizing communication between server and the peripheral hardware through USB interface; Said on-off controller responsively comprises other protocol conversion chip, is used for the command information that receives from server is carried out also exporting after the protocol conversion.Other can realize the object of the invention equally with above-mentioned embodiment, belongs to protection scope of the present invention.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (10)
1. a controller of discerning USB device again is characterized in that, comprising:
First group of usb interface unit comprises several USB interfaces, be used for server on USB interface link to each other;
Second group of usb interface unit comprises several USB interfaces, be used for peripheral hardware on USB interface link to each other;
Wiring board connects said first group of usb interface unit and second group of usb interface unit, and corresponding USB interface is connected in the USB interface that is used for realizing said first group of usb interface unit and the said second group of usb interface unit;
Switch element is arranged on the said wiring board, connects with at least one power lead of each USB interface in said first group of usb interface unit, is used to realize the break-make control at least one power lead of said USB interface;
On-off controller; Link to each other with said switch element with said server; Receive the USB interface and the command information of server communication break-make in first group of usb interface unit that said server sends, and break off and closure according to the predetermined switch that said break-make command information is controlled in the said switch element.
2. the controller of discerning USB device again according to claim 1 is characterized in that: said on-off controller further comprises,
The usb protocol conversion chip will carry out exporting after the protocol conversion from the command information that said server receives; Programmable logic chip receives the protocol information after the conversion of said usb protocol conversion chip and resolves, and needing to obtain positional information and the CS of the USB interface of control to break off the instruction of closure then earlier and sends to switch element.
3. the controller of discerning USB device again according to claim 1 and 2 is characterized in that: the quantity of USB interface is ten in said first group of usb interface unit and the said second group of usb interface unit, and divides equally two-layer setting.
4. the controller of discerning USB device again according to claim 3 is characterized in that: said first group of usb interface unit and said second group of usb interface unit lay respectively on two relative sides of said second housing.
5. the controller of discerning USB device again according to claim 4; It is characterized in that: also comprise first housing and second housing; Wherein, Said on-off controller is packaged in said first housing, and said first group of usb interface unit, said second group of usb interface unit, said wiring board and said switch element are packaged in said second housing, and form USB interface on the relevant position of said second housing.
6. according to claim 4 or the 5 described controllers of discerning USB device again, it is characterized in that: said switch is the G6HK-2-DC5 relay, and said relay is used for realizing the break-make control of two power line signal of USB interface.
7. according to claim 4 or the 5 described controllers of discerning USB device again; It is characterized in that: said switch comprises USB2.0 signal specialized simulation switch and relay; Wherein, USB2.0 signal specialized simulation switch is used for realizing the break-make control of USB interface two data lines signals, and said relay is used for realizing the break-make control of two power line signal of USB interface.
8. the controller of discerning USB device again according to claim 2 is characterized in that: the FT245BL chip that said usb protocol conversion chip is a FTDI company; The EPM3064A chip of said programmable logic chip AMTEL company.
9. control method of discerning USB device again; It is characterized in that: this method has been used arbitrary described controller of discerning USB device again like claim 1-8; Also used the server and the peripheral hardware that link to each other through the said controller of discerning USB device again simultaneously, the concrete steps of the control method of its realization are following:
S01, server detect the communication situation between peripheral hardware and the server in real time, when detecting communicating interrupt, send the information of communication break-make;
S02, the switch element controller receives the information of said communication break-make, and generates disconnection of control predetermined switch and closed command information and output according to the information of said communication break-make;
S03, switch receive said command information and break off closure then earlier, make server discern peripheral hardware again.
10. the control method of discerning USB device again according to claim 9; It is characterized in that: among the said step S02, specifically comprise with the command information that receives from said server carry out output after the protocol conversion and will change after protocol information resolve and obtain USB interface information and steering order that needs control and the step that sends to switch element.
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| CN108874700B (en) * | 2018-06-01 | 2021-07-16 | 联想(北京)有限公司 | Electronic device |
| CN110046108A (en) * | 2019-01-09 | 2019-07-23 | 阿里巴巴集团控股有限公司 | USB peripheral control device, system and its control method |
| CN113961498A (en) * | 2021-12-20 | 2022-01-21 | 长芯盛（武汉）科技有限公司 | Method, device and storage medium for processing USB (universal serial bus) mode reduction |
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