CN111638863A - KVM USB link switching system - Google Patents

Abstract

The invention relates to a KVM USB link switching system, comprising: an agent terminal module and a host terminal module; the agent terminal module is used to convert a first USB signal sent by a USB device into a first network signal and send it to the host terminal module The seat terminal module is also used to convert the second network signal sent by the host terminal module into a fourth USB signal and send it to the corresponding USB device; the seat terminal module is also used to convert the third host terminal module sent over. The network signal is converted into a first video signal and sent to the display. The host terminal module is used to convert the first network signal sent by the agent terminal module into a second USB signal and send it to the host; the host terminal module is also used to convert the third USB signal sent by the host into the second USB signal. The second network signal is to convert the second video signal sent by the host into the third network signal. The present invention improves the compatibility of KVM equipment.

Description

A KVM USB Link Switching System

technical field

The invention relates to the technical field of USB transmission, in particular to a KVM USB link switching system.

Background technique

Switches (Keyboard Video Mouse, KVM for short) are widely used in command centers and control centers. KVM connects a set of keyboards, mice, monitors, etc. to control multiple remote hosts through the agent terminal, and switches between multiple hosts. It makes management easier and more convenient and improves work efficiency.

In the current project, in addition to supporting keyboards and mice, KVM also needs to be able to support a variety of USB devices, such as printers, scanners, USB storage devices and USB audio and video devices, etc. It also needs to be compatible with a variety of operating systems. Such as Windows, Linux, IOS, and Kylin operating systems, but traditional KVM devices cannot support such diverse needs.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a KVM USB link switching system with high compatibility.

For achieving the above object, the present invention provides the following scheme:

A KVM USB link switching system, the system comprises: an agent terminal module and a host terminal module;

The agent terminal module is used to convert the first USB signal sent by the USB device into a first network signal and send it to the host terminal module; the agent terminal module is also used to convert the first USB signal sent by the host terminal module. The second network signal is converted into a fourth USB signal and sent to the corresponding USB device; the agent terminal module is further configured to convert the third network signal sent by the host terminal module into a first video signal and send it to the corresponding USB device; monitor.

The host terminal module is used to convert the first network signal sent by the agent terminal module into a second USB signal and send it to the host; the host terminal module is also used to convert the third USB signal sent from the host. The signal is converted into the second network signal, and the second video signal sent from the host is converted into the third network signal.

Preferably, the USB device includes a mouse, a keyboard, a printer, a scanner, a USB storage device and a USB audio and video device.

Preferably, the agent terminal module includes m agent terminals; the host terminal module includes n host terminals; m and n are both positive integers greater than or equal to 1;

Each of the agent terminals includes: a first signal unit, a first processor, a second signal unit, a first network unit, and a KVM management unit;

Each of the host terminals includes: a third signal unit, a second processor, a fourth signal unit and a second network unit;

The first signal unit is used to convert the first USB signal sent by the USB device into a first data signal and send it to the first processor; the first processor converts the first data signal converted into the first network signal, and sent to the second processor through the first network unit and the second network unit; the second processor converts the first network signal into a second network signal a data signal; the third signal unit converts the second data signal into the second USB signal and sends it to the host;

The third signal unit is used to convert the third USB signal sent by the host into a third data signal and send it to the second processor; the second processor converts the third data signal into the second network signal, and send it to the first processor through the second network unit and the first network unit; the first processor converts the second network signal into fourth data signal; the first signal unit converts the fourth data signal into the fourth USB signal, and sends it to the corresponding USB device;

The fourth signal unit is used to convert the second video signal sent from the host into a fifth data signal and send it to the second processor; the second processor converts the fifth data signal into a fifth data signal. The third network signal is sent to the first processor through the second network unit and the first network unit; the first processor converts the third network signal into a sixth data signal ; The second signal unit converts the sixth data signal into the first video signal and sends it to the display.

Preferably, the agent terminal further includes:

The KVM management unit completes the pairing connection between each of the first network units and each of the second network units through the first processor.

Preferably, the system further comprises: a switch;

Each of the first network units and each of the second network units are connected through the switch, and the switch is used to perform the first network signal and/or the second network signal and/or the The transmission of the third network signal.

Preferably, each of the first network units and the switch and each of the second network units and the switch are connected by copper wires or optical fibers.

Preferably, Ethernet is used for data communication between each of the first network elements and the switch and between each of the second network elements and the switch.

Preferably, pairing connection is also performed between each of the first network units and each of the second network units by sliding a mouse.

According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

The invention relates to a KVM USB link switching system, comprising: an agent terminal module and a host terminal module; the agent terminal module is used to convert a first USB signal sent by a USB device into a first network signal and send it to the host terminal module The seat terminal module is also used to convert the second network signal sent by the host terminal module into a fourth USB signal, and send it to the corresponding USB device; the seat terminal module is also used for the host terminal module. The network signal is converted into a first video signal and sent to the display. The host terminal module is used to convert the first network signal sent by the agent terminal module into a second USB signal and send it to the host; the host terminal module is also used to convert the third USB signal sent by the host into the second USB signal. The second network signal is to convert the second video signal sent by the host into the third network signal. The present invention improves the compatibility of KVM equipment.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.

1 is a schematic structural diagram of a KVM USB link switching system of the present invention;

FIG. 2 is a schematic structural diagram of an agent terminal according to the present invention;

FIG. 3 is a schematic structural diagram of a host terminal of the present invention.

Symbol description: 1-seat terminal, 2-host terminal, 3-switch, 4-host, 5-USB device, 6-display, 11-KVM management unit, 12-first signal unit, 13-first processor, 14-second signal unit, 15-first network unit, 21-third signal unit, 22-second processor, 23-fourth signal unit, 24-second network unit, 51-keyboard, 52-mouse, 53-printer, 54-scanner, 55-USB storage device, 56-USB audio and video device, 121-key and mouse sub-unit, 122-USB sub-unit.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The purpose of the present invention is to provide a KVM USB link switching system with high compatibility.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a structural diagram of a KVM USB link switching system according to the present invention. As shown in FIG. 1 , the present invention provides a KVM USB link switching system. The system includes an agent terminal module and a host terminal module.

The agent terminal module is used to convert the first USB signal sent by the USB device 5 into a first network signal and send it to the host terminal module; the agent terminal module is also used to send the host terminal module over. The second network signal is converted into a fourth USB signal and sent to the corresponding USB device 5; the agent terminal module is also used to convert the third network signal sent by the host terminal module into a first video signal, and sent to display 6. In this embodiment, the USB device 5 includes a mouse 52 , a keyboard 51 , a printer 53 , a scanner 54 , a USB storage device 55 , a USB audio and video device 56 , and the like.

The host terminal module is used to convert the first network signal sent by the agent terminal module into a second USB signal and send it to the host 4; the host terminal module is also used to convert the first network signal sent by the host 4. The three USB signals are converted into the second network signal, and the second video signal sent from the host 4 is converted into the third network signal.

As an optional implementation manner, the agent terminal module of the present invention includes m agent terminals 1 . The host terminal module includes n host terminals 2 . Both m and n are positive integers greater than or equal to 1.

Specifically, as shown in FIG. 2 , each of the agent terminals 1 of the present invention includes: a first signal unit 12 , a first processor 13 , a second signal unit 14 , a first network unit 15 , and a KVM management unit.

As shown in FIG. 3 , each of the host terminals of the present invention includes: a third signal unit 21 , a second processor 22 , a fourth signal unit 23 and a second network unit 24 .

The first signal unit 12 is used to convert the first USB signal sent by the USB device 5 into a first data signal, and send it to the first processor 13; The first data signal is packaged to obtain the first network signal, and sent to the second processor 22 through the first network unit 15 and the second network unit 24; The first network signal is analyzed to obtain a second data signal; the third signal unit 21 converts the second data signal into the second USB signal, and sends it to the host 4 .

The third signal unit 21 is configured to convert the third USB signal sent by the host 4 into a third data signal, and send it to the second processor 22; the second processor 22 converts the third USB signal into a third data signal. The three data signals are packaged to obtain the second network signal, and sent to the first processor 13 through the second network unit 24 and the first network unit 15; The second network signal is analyzed to obtain a fourth data signal; the first signal unit 12 converts the fourth data signal into the fourth USB signal, and sends it to the corresponding USB device 5 .

The fourth signal unit 23 is configured to convert the second video signal sent from the host 4 into a fifth data signal and send it to the second processor 22; The data signal is packaged to obtain the third network signal, and sent to the first processor 13 through the second network unit 24 and the first network unit 15; The third network signal is analyzed to obtain a sixth data signal; the second signal unit 14 converts the sixth data signal into the first video signal and sends it to the display 6 .

In this embodiment, the specific model of the first signal unit 12 is FE2.1. The specific model of the first processor 13 is RK3368. The specific model of the first network unit 15 is IP1001. The specific model of the fourth signal unit is LT6211B. The specific model of the second processor 22 is RK3368. The specific model of the second network unit 24 is IP1001.

As an optional implementation manner, the first signal unit 12 of the present invention includes: a keyboard and mouse subunit 121 and a USB subunit 122, so that the present invention can be connected to various USB devices 5 .

The mouse and keyboard sub-unit 121 is used to connect to the mouse 52 and the keyboard 51 .

The USB sub-unit 122 is used to access the printer 53, the scanner 54, the USB storage device 55, the USB audio and video device 56, and the like.

In order to realize diversified connectivity between each of the agent terminals 1 and each of the host terminals 2 , the system of the present invention further includes: a switch 3 .

Each of the first network units 15 and each of the second network units 24 are connected through the switch 3, and the switch 3 is used to perform the first network signal and/or the second network signal and /or the transmission of the third network signal. The switch 3 adopts the switch of the TL-SG1024DT model.

In order to establish the connection between each of the first network units 15 and each of the second network units 24 through the switch 3, the agent terminal 1 of the present invention further includes:

The KVM management unit 11 completes the pairing connection between any one of the first network units 15 and any one of the second network units 24 through the first processor 13 . The present invention can also be set to automatically follow the sliding of the mouse 52 to switch, so as to realize the pairing connection between any one of the first network units 15 and any one of the second network units 24 .

Specifically, each of the first network units 15 and the switch 3 and each of the second network units 24 and the switch 3 are connected by copper wires or optical fibers, so as to improve the transmission speed of signals.

In order to ensure the stability of the signal transmission process, in this embodiment, Ethernet is used between each of the first network units 15 and the switch 3 and between each of the second network units 24 and the switch 3 . data communication.

Different agent terminals and different host terminals of the present invention can be switched arbitrarily at any time, and support various types of USB devices, and the present invention can adapt to various operating systems, such as Windows, Linux, IOS and Kylin.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The principles and implementations of the present invention are described herein using specific examples. The descriptions of the above embodiments are only used to help understand the system and the core idea of the present invention; meanwhile, for those skilled in the art, according to the present invention There will be changes in the specific implementation and application scope. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (8)

1. A KVM USB link switching system, the system comprising: the system comprises a seat terminal module and a host terminal module;

the seat terminal module is used for converting a first USB signal sent by USB equipment into a first network signal and sending the first network signal to the host terminal module; the seat terminal module is also used for converting a second network signal sent by the host terminal module into a fourth USB signal and sending the fourth USB signal to corresponding USB equipment; and the seat terminal module is also used for converting the third network signal sent by the host terminal module into a first video signal and sending the first video signal to a display.

The host terminal module is used for converting the first network signal sent by the seat terminal module into a second USB signal and sending the second USB signal to the host; the host terminal module is also used for converting a third USB signal sent by the host into the second network signal and converting a second video signal sent by the host into the third network signal.

2. The KVM USB link switching system of claim 1, wherein the USB devices comprise a mouse, a keyboard, a printer, a scanner, a USB storage device, and a USB audio video device.

3. The KVM USB link switching system of claim 2, wherein the seat terminal module comprises m seat terminals; the host terminal module comprises n host terminals; m and n are positive integers greater than or equal to 1;

each seat terminal includes: the KVM management unit comprises a first signal unit, a first processor, a second signal unit, a first network unit and a KVM management unit;

each of the host terminals includes: a third signal unit, a second processor, a fourth signal unit and a second network unit;

the first signal unit is used for converting the first USB signal sent by the USB equipment into a first data signal and sending the first data signal to the first processor; the first processor converts the first data signal into the first network signal and sends the first network signal to the second processor through the first network unit and the second network unit; the second processor converts the first network signal into a second data signal; the third signal unit converts the second data signal into the second USB signal and sends the second USB signal to the host;

the third signal unit is used for converting the third USB signal sent by the host into a third data signal and sending the third data signal to the second processor; the second processor converts the third data signal into the second network signal and sends the second network signal to the first processor through the second network unit and the first network unit; the first processor converting the second network signal into a fourth data signal; the first signal unit converts the fourth data signal into a fourth USB signal and sends the fourth USB signal to corresponding USB equipment;

the fourth signal unit is used for converting the second video signal sent by the host into a fifth data signal and sending the fifth data signal to the second processor; the second processor converts the fifth data signal into the third network signal and sends the third network signal to the first processor through the second network unit and the first network unit; the first processor converts the third network signal into a sixth data signal; and the second signal unit converts the sixth data signal into the first video signal and sends the first video signal to a display.

4. The KVM USB link switching system according to claim 3, wherein said seat terminal further comprises:

and the KVM management unit completes pairing connection between each first network unit and each second network unit through the first processor.

5. The KVM USB link switching system according to claim 3, further comprising: a switch;

each first network unit and each second network unit are connected through the switch, and the switch is used for transmitting the first network signal and/or the second network signal and/or the third network signal.

6. The KVM USB link switching system according to claim 5, wherein each of the first network units and the switch and each of the second network units and the switch are connected by copper wires or optical fibers.

7. The KVM USB link switching system according to claim 6, wherein data communication between each of the first network units and the switch and between each of the second network units and the switch is performed via Ethernet.

8. The KVM USB link switching system according to claim 4, wherein each of said first network units and each of said second network units are further coupled in a pairing manner by mouse sliding.

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