CN202018635U

CN202018635U - Device capable of realizing switching of PS (personal system)/2 signals in KVM (kernel-based virtual machine)

Info

Publication number: CN202018635U
Application number: CN2011200950932U
Authority: CN
Inventors: 吴之光; 金长新; 梁智豪
Original assignee: Inspur Electronic Information Industry Co Ltd
Current assignee: Inspur Electronic Information Industry Co Ltd
Priority date: 2011-04-02
Filing date: 2011-04-02
Publication date: 2011-10-26
Anticipated expiration: 2021-04-02

Abstract

The utility model discloses a device capable of realizing switching of PS (personal system)/2 signals in a KVM (kernel-based virtual machine), which belongs to the technical field of computer management and structurally comprises a keyboard PS/2 input end, a mouse PS/2 input end, a PS/2 switching module and a mainframe computer PS/2 port, wherein the keyboard PS/2 input end and the mouse PS/2 input end are connected with the PS/2 switching module, and the PS/2 switching module is connected with the mainframe computer PS/2 port. Compared with the prior art, the device realizes switching of the PS/2 signals among a plurality of computers in the KVM, is more reliable and sensitive, and provides support for centralized management of the signals of keyboards and mouses in a PS/2 protocol of computers or a server group.

Description

Realize PS/2 signal device for switching among a kind of KVM

Technical field

The utility model relates to a kind of computer management technology field, realizes PS/2 signal device for switching among specifically a kind of KVM.

Background technology

Along with technical development of computer, the performance index of computing machine improve constantly, but computer application field even swifter and more violent than the development of computing machine itself, single computer can not satisfy the needs of whole computer system under a lot of occasions, the system that will form a perfect in shape and function by two or two above computing machines, huge system even need tens computing machines to build jointly.Relate to operation when therefore whole computer system being managed,, not only cause waste, and use very inconvenient if all dispose a cover input-output device separately at every computing machine of same machine room to each computing machine.In this case, the KVM technology is arisen at the historic moment, it is only with operation and the management that can finish multicomputer once cover keyboard, mouse and display apparatus, KVM makes multicomputer, and particularly the centralized management of group of server is just many easily, and this also is the developing direction of group of server aspect centralized management.One of gordian technique among the KVM is exactly the management of keyboard, mouse signal, current popular commercial KVM's is that keyboard, the mouse interface of usb protocol is connected with server, but in many instances, particularly still need the keyboard of reliable, sensitive PS/2 agreement, the PC or the server of mouse interface on the military computer.PS/2 is one of interface common on computer early, is used for equipment such as mouse, keyboard.

How to realize that in KVM the PS/2 signal switches between multicomputer, be the problem that those skilled in the art press for solution.

The utility model content

Technical assignment of the present utility model is at above weak point, provides and realizes PS/2 signal device for switching among a kind of KVM that realizes PS/2 signal switching between multicomputer among a kind of KVM.

The technical scheme that its technical matters that solves the utility model adopts is: the PS/2 port that comprises keyboard PS/2 input end, mouse PS/2 input end, PS/2 handover module, main frame, keyboard PS/2 input end is connected the PS/2 handover module with mouse PS/2 input end, and the PS/2 handover module connects the PS/2 port of main frame.

The PS/2 handover module can be connected to the PS/2 port of 1～100 main frame.

The agreement aspect is divided into computer terminal and device keyboard, the initialization procedure of mouse end PS/2 interface and the safe transmission process of valid data.After powering on, insertion PS/2 keyboard, PS/2 mouse can be finished its initialization automatically; PS/2 keyboard, PS/2 mouse are connected the PS/2 handover module by keyboard PS/2 input end with mouse PS/2 input end respectively; In the main frame start-up course, the PS/2 handover module can be simulated the initialization procedure that PS/2 keyboard, PS/2 mouse are finished the PS/2 port of main frame; When many main frames connected and start simultaneously, the PS/2 handover module can be handled multichannel simultaneously and start, and can not influence mutually, and keyboard, mouse can both normally use in the time of can guaranteeing to switch to each road.The transmission of valid data comprises the reception and the transmission of keyboard, mouse data, and after the PS/2 handover module received data, simulating keyboard, mouse sent to corresponding calculated machine host PS/2 port again data according to current gating passage.

The gordian technique of this patent is the data protection of the parallel initialization of multichannel main frame PS/2 port when starting simultaneously and passage PS/2 passage when switching.In the initialization procedure, data can not be lost, and can not multiplely retransmit wrong sending out, otherwise are easy to cause the initialization failure, and particularly under the situation that the multicomputer main frame starts simultaneously, what adopt in the design is to interrupt the control mode of inquiry more earlier.Passage switches moment, guarantee that last passage finished the transmission course of last group valid data, prevents loss of data, causes keyboard, mouse malfunctioning, also will remove the also untreated data of send buffer simultaneously, avoid data repeat send.

Realization PS/2 signal device for switching is compared with prior art among a kind of KVM of the present utility model, realized that in KVM the PS/2 signal switches between multicomputer, reliable, sensitive, for the keyboard of the PS/2 agreement of multicomputer or group of server, the centralized management of mouse signal provide support, thereby, have good value for applications.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Accompanying drawing 1 is a structural representation of realizing PS/2 signal device for switching among a kind of KVM;

Accompanying drawing 2 is an agreement process flow diagram of realizing PS/2 signal device for switching among a kind of KVM.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, realize PS/2 signal device for switching among a kind of KVM of the present utility model, the PS/2 port that comprises keyboard PS/2 input end, mouse PS/2 input end, PS/2 handover module, main frame, keyboard PS/2 input end is connected the PS/2 handover module with mouse PS/2 input end, and the PS/2 handover module connects the PS/2 port of main frame.

As shown in Figure 2, the agreement aspect is divided into computer terminal and device keyboard, the initialization procedure of mouse end PS/2 interface and the safe transmission process of valid data.After powering on, insertion PS/2 keyboard, PS/2 mouse can be finished its initialization automatically; PS/2 keyboard, PS/2 mouse are connected the PS/2 handover module by keyboard PS/2 input end with mouse PS/2 input end respectively; In the main frame start-up course, the PS/2 handover module can be simulated the initialization procedure that PS/2 keyboard, PS/2 mouse are finished the PS/2 port of main frame; When many main frames connected and start simultaneously, the PS/2 handover module can be handled multichannel simultaneously and start, and can not influence mutually, and keyboard, mouse can both normally use in the time of can guaranteeing to switch to each road.The transmission of valid data comprises the reception and the transmission of keyboard, mouse data, and after the PS/2 handover module received data, simulating keyboard, mouse sent to corresponding calculated machine host PS/2 port again data according to current gating passage.

Realize among a kind of KVM of the present utility model that its processing and fabricating of PS/2 signal device for switching is very simple and convenient, processing and fabricating gets final product shown in the by specification accompanying drawing.

Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.

Claims

1. realize PS/2 signal device for switching among a KVM, it is characterized in that comprising the PS/2 port of keyboard PS/2 input end, mouse PS/2 input end, PS/2 handover module, main frame, keyboard PS/2 input end is connected the PS/2 handover module with mouse PS/2 input end, and the PS/2 handover module connects the PS/2 port of main frame.

2. realize PS/2 signal device for switching among a kind of KVM according to claim 1, it is characterized in that the PS/2 handover module can be connected to the PS/2 port of 1～100 main frame.