CN111638863A - KVM USB link switching system - Google Patents

KVM USB link switching system Download PDF

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Publication number
CN111638863A
CN111638863A CN202010703155.7A CN202010703155A CN111638863A CN 111638863 A CN111638863 A CN 111638863A CN 202010703155 A CN202010703155 A CN 202010703155A CN 111638863 A CN111638863 A CN 111638863A
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CN
China
Prior art keywords
signal
network
usb
unit
terminal module
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Pending
Application number
CN202010703155.7A
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Chinese (zh)
Inventor
李杨
曹臻
邱昊
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Shanghai Chenyu Information Technology Co ltd
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Shanghai Chenyu Information Technology Co ltd
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Priority to CN202010703155.7A priority Critical patent/CN111638863A/en
Publication of CN111638863A publication Critical patent/CN111638863A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Information Transfer Systems (AREA)

Abstract

The invention relates to a KVM USB link switching 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 the 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 the second network signal sent by the host terminal module into a fourth USB signal and sending the fourth USB signal to corresponding USB equipment; 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 the 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. The invention improves the compatibility of the KVM equipment.

Description

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
A switch (Keyboard Video Mouse, KVM for short) is widely used in a command center and a control center, and the KVM is connected to a set of Keyboard, Mouse, display and the like through a seat terminal to control a plurality of remote hosts, and is switched among the plurality of hosts, so that management is easier and more convenient, and work efficiency is improved.
In the current project, the KVM needs to be able to support not only the keyboard and the mouse, but also various USB devices, such as a printer, a scanner, a USB storage device, a USB audio/video device, and the like, and also needs to be compatible with various operating systems, such as Windows, Linux, IOS, and kylin operating systems, but the conventional KVM cannot support such diverse requirements.
Disclosure of Invention
The invention aims to provide a KVM USB link switching system with high compatibility.
In order to achieve the purpose, the invention provides the following scheme:
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.
Preferably, the USB device includes a mouse, a keyboard, a printer, a scanner, a USB storage device, and a USB audio/video device.
Preferably, 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.
Preferably, the seat terminal further includes:
and the KVM management unit completes pairing connection between each first network unit and each second network unit through the first processor.
Preferably, the system further comprises: 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.
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, data communication is performed between each first network unit and the switch and between each second network unit and the switch in an ethernet manner.
Preferably, each first network unit and each second network unit are further connected in a pairing mode through mouse sliding.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention relates to a KVM USB link switching 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 the 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 the second network signal sent by the host terminal module into a fourth USB signal and sending the fourth USB signal to corresponding USB equipment; 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 the 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. The invention improves the compatibility of the KVM equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic diagram of a KVM USB link switching system according to the present invention;
FIG. 2 is a schematic diagram of a seat terminal structure according to the present invention;
fig. 3 is a schematic structural diagram of a host terminal according to the present invention.
Description of the symbols: 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-keyboard and mouse subunit, and 122-USB subunit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a KVM USB link switching system with high compatibility.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a structural diagram of a KVM USB link switching system according to the present invention, and as shown in fig. 1, the present invention provides a KVM USB link switching system, which includes: 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 the USB device 5 into a first network signal and sending the first network signal to the host terminal module; the seat terminal module is further configured to convert the second network signal sent by the host terminal module into a fourth USB signal, and send the fourth USB signal to the corresponding USB device 5; the seat terminal module is further configured to convert the third network signal sent by the host terminal module into a first video signal, and send the first video signal to the 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/video device 56, and the like.
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 4; the host terminal module is further configured to convert a third USB signal sent by the host 4 into the second network signal, and convert a second video signal sent by the host 4 into the third network signal.
As an alternative embodiment, the seat terminal module of the present invention includes m seat terminals 1. The host terminal module includes n host terminals 2. m and n are both positive integers greater than or equal to 1.
Specifically, as shown in fig. 2, each seat terminal 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 configured to convert the first USB signal sent by the USB device 5 into a first data signal, and send the first data signal to the first processor 13; the first processor 13 performs a packet processing on the first data signal to obtain the first network signal, and sends the first network signal to the second processor 22 through the first network unit 15 and the second network unit 24; the second processor 22 analyzes the first network signal to obtain a second data signal; the third signal unit 21 converts the second data signal into the second USB signal, and sends the second USB signal 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 the third data signal to the second processor 22; the second processor 22 performs packet processing on the third data signal to obtain the second network signal, and sends the second network signal to the first processor 13 through the second network unit 24 and the first network unit 15; the first processor 13 analyzes the second network signal to obtain a fourth data signal; the first signal unit 12 converts the fourth data signal into the fourth USB signal, and sends the fourth USB signal to the corresponding USB device 5.
The fourth signal unit 23 is configured to convert the second video signal sent by the host 4 into a fifth data signal, and send the fifth data signal to the second processor 22; the second processor 22 performs packet processing on the fifth data signal to obtain the third network signal, and sends the third network signal to the first processor 13 through the second network unit 24 and the first network unit 15; the first processor 13 analyzes the third network signal 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 FE 2.1. The specific model of the first processor 13 is RK 3368. The specific model of the first network element 15 is IP 1001. The specific model of the fourth signal unit is LT 6211B. The specific model of the second processor 22 is RK 3368. The specific model of the second network element 24 is IP 1001.
As an alternative embodiment, 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 connect various USB devices 5.
The keyboard and mouse subunit 121 is used to access the mouse 52 and the keyboard 51.
The USB subunit 122 is used to access the printer 53, the scanner 54, the USB storage device 55, the USB audio/video device 56, and the like.
In order to realize diversified connectivity between each seat terminal 1 and each host terminal 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 by the switch 3, and the switch 3 is configured to perform transfer of the first network signal and/or the second network signal and/or the third network signal. The switch 3 adopts a TL-SG1024DT switch.
In order to establish a connection between each of the first network elements 15 and each of the second network elements 24 via the switch 3, the seat terminal 1 according to the present invention further comprises:
the KVM management unit 11, via the first processor 13, completes the pairing connection between any of the first network units 15 and any of the second network units 24. The invention can also be arranged to automatically switch along with the sliding of the mouse 52, so as to realize the pairing connection between any first network unit 15 and any second network unit 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 increase the transmission speed of signals.
In order to ensure the stability of the signal transmission process, in this embodiment, data communication is performed between each first network unit 15 and the switch 3 and between each second network unit 24 and the switch 3 in an ethernet manner.
Different seat terminals and different host terminals of the invention can be switched at will at any time, and support various types of USB equipment, and the invention can be adapted to various operating systems, such as: windows, Linux, IOS, kylin, etc.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist understanding of the system and its core concepts; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the 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.
CN202010703155.7A 2020-07-21 2020-07-21 KVM USB link switching system Pending CN111638863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010703155.7A CN111638863A (en) 2020-07-21 2020-07-21 KVM USB link switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010703155.7A CN111638863A (en) 2020-07-21 2020-07-21 KVM USB link switching system

Publications (1)

Publication Number Publication Date
CN111638863A true CN111638863A (en) 2020-09-08

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CN202010703155.7A Pending CN111638863A (en) 2020-07-21 2020-07-21 KVM USB link switching system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112269474A (en) * 2020-10-09 2021-01-26 上海晨驭信息科技有限公司 KVM USB link health management system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112269474A (en) * 2020-10-09 2021-01-26 上海晨驭信息科技有限公司 KVM USB link health management system
CN112269474B (en) * 2020-10-09 2024-02-09 上海晨驭信息科技有限公司 KVM USB link health management system

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