CN111158501A - Video monitoring system based on KVM - Google Patents
Video monitoring system based on KVM Download PDFInfo
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- CN111158501A CN111158501A CN201911314074.1A CN201911314074A CN111158501A CN 111158501 A CN111158501 A CN 111158501A CN 201911314074 A CN201911314074 A CN 201911314074A CN 111158501 A CN111158501 A CN 111158501A
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- mouse
- keyboard
- decoding
- kvm
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 230000000694 effects Effects 0.000 claims description 4
- 241000699666 Mus <mouse, genus> Species 0.000 abstract description 51
- 238000012423 maintenance Methods 0.000 abstract description 6
- 241000699670 Mus sp. Species 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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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
- G06F3/01—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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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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
- G06F3/01—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
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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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/0482—Interaction with lists of selectable items, e.g. menus
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Abstract
The invention discloses a video monitoring system based on a KVM (keyboard, video and mouse), which aims to realize the function that a set of keyboard and mouse connected to a decoding device remotely controls a plurality of remote encoder keyboards and mice, thereby greatly facilitating the operation of a user on the remote encoder keyboards and mice, improving the user experience and reducing the maintenance cost of the device to the greatest extent. Because the invention uses USB slave device to virtualize the keyboard and mouse of computer on the remote coding device, all remote computers can be controlled remotely without mouse and keyboard, thus realizing the purpose of managing multiple remote encoder devices by one set of keyboard and mouse.
Description
Technical Field
The invention relates to the field of video monitoring, in particular to a KVM (keyboard, video and mouse) -based video monitoring system.
Background
KVM is an abbreviation of Keyboard (Keyboard), display (Video), and Mouse (Mouse), and the core idea of KVM technology is: through the configuration of proper keyboard, mouse and display, the centralized management of system and equipment is achieved, and the efficiency of equipment maintenance and management is improved. However, in the video monitoring industry, images and sounds of the encoder can be remotely checked to control the cradle head connected with the encoder, but a remote keyboard and a remote mouse cannot be remotely controlled, so that the user experience is not good, and the problems of remote positioning and equipment solving are not convenient. Some equipment faults which can be remotely positioned and processed originally exist, if the remote keyboard and the mouse are not controlled, some problem processing needs to be carried out by operation and maintenance colleagues to arrive at the site, so that the management cost of equipment maintenance of enterprises is increased, the user satisfaction is reduced, and the image of the enterprises is objectively damaged.
Disclosure of Invention
The invention aims to realize the function that a set of keyboard and mouse connected with the decoding equipment remotely controls a plurality of remote encoder keyboards and mice, thereby greatly facilitating the operation of a user on the remote encoder keyboards and mice, improving the user experience and reducing the maintenance cost of the equipment to the greatest extent. Because the invention uses USB slave device to virtualize the keyboard and mouse of computer on the remote coding device, all remote computers can be controlled remotely without mouse and keyboard, thus realizing the purpose of managing multiple remote encoder devices by one set of keyboard and mouse.
The adopted video monitoring system based on the KVM comprises a plurality of encoding devices and decoding devices, wherein each encoding device is connected with a video source host respectively so as to acquire and encode a video source from the video source host to form an encoder image, the decoding devices are connected with a mouse and a keyboard so as to carry out KVM control, the on-demand of each encoding device is realized, the corresponding encoder image is decoded after the on-demand, and then the decoded image is played on a local display;
when the KVM-based video monitoring system performs remote control: firstly, selecting coding equipment needing remote control through decoding equipment, and then requesting an encoder image of the coding equipment needing remote control; then acquiring keyboard and mouse signals generated by the operation of a user on the mouse and the keyboard, acquiring the keyboard and mouse signals by a decoding end control chip, sending the keyboard and mouse signals to a decoding end arm processor connected with the decoding end arm chip through a serial port, and analyzing corresponding keyboard data and mouse data by the decoding end arm processor; the arm processor at the decoding end encapsulates the keyboard data and the mouse data, and then sends the keyboard data and the mouse data to the arm processor on the encoder through the network port of the decoding equipment; an arm processor on a remote encoder receives and analyzes the keyboard data and the mouse data, and then an arm processor at an encoding end sends the analyzed keyboard data and mouse data to an encoding end control chip; the encoding end control chip realizes the function of a USB slave device and virtualizes the slave device into a device of a keyboard and a mouse of a computer, the encoding end control chip realizes the operation of the virtual keyboard and the virtual mouse of the video source host by using the keyboard data and the mouse data obtained by analysis, and the effect that the decoding device remotely controls the encoding device through a KVM is achieved;
the decoding device is also used for responding to the operation of a user, disconnecting the coding device which is currently requested and needs remote control, and selecting another coding device to realize the control of a remote keyboard and a remote mouse of another coding device.
Further, in the KVM-based video monitoring system of the present invention, the decoding side control chip and the encoding side control chip are single-chip microcomputers.
Further, in the KVM-based video monitoring system of the present invention, the encoding side control chip is located on the encoding side monolithic board, and the encoding side arm processor is located on the encoding side arm board; the decoding end control chip is positioned on the decoding end single chip microcomputer board, and the decoding end arm processor is positioned on the decoding end arm board.
Further, in the KVM-based video monitoring system of the present invention, the mouse and the keyboard are a USB mouse and a USB keyboard, and the USB mouse and the USB keyboard are connected to the decoding device through a USB interface.
Further, in the KVM-based video monitoring system of the present invention, the encoding device has a USB interface, is connected to the video source host, and transmits signals through the USB interface, thereby implementing the virtual keyboard and mouse operations on the video source host.
The KVM-based video monitoring system has the following beneficial effects: the invention can remotely control the remote coding equipment to operate the keyboard and the mouse through the KVM, thereby greatly improving the user experience and reducing the management and maintenance cost of the equipment.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a block diagram of an embodiment of a KVM based video monitoring system.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the KVM-based video monitoring system of this embodiment includes a plurality of encoding devices and a decoding device, where each encoding device is connected to a video source host, so as to obtain a video source from the video source host and perform encoding to form an encoder image, and the video source host is used to provide the video source. The decoding equipment is connected with the mouse and the keyboard so as to perform KVM control, the video-on-demand of each coding equipment is realized, the corresponding encoder images are decoded after the video-on-demand, and then the encoded encoder images are played on a local display, wherein the mouse and the keyboard are a USB mouse and a USB keyboard, and the USB mouse and the USB keyboard are connected to the decoding equipment through a USB interface. Each encoding device comprises an encoding end control chip and an encoding end arm processor, and each decoding device comprises a decoding end control chip and a decoding end arm processor.
When the KVM-based video monitoring system performs remote control: firstly, selecting coding equipment needing remote control through decoding equipment, and then requesting an encoder image of the coding equipment needing remote control; then acquiring keyboard and mouse signals generated by the operation of a user on the mouse and the keyboard, acquiring the keyboard and mouse signals by a decoding end control chip, sending the keyboard and mouse signals to a decoding end arm processor connected with the decoding end arm chip through a serial port, and analyzing corresponding keyboard data and mouse data by the decoding end arm processor; the arm processor at the decoding end encapsulates the keyboard data and the mouse data, and then sends the keyboard data and the mouse data to the arm processor on the encoder through the network port of the decoding equipment; an arm processor on a remote encoder receives and analyzes the keyboard data and the mouse data, and then an arm processor at an encoding end sends the analyzed keyboard data and mouse data to an encoding end control chip; the encoding end control chip realizes the function of a USB slave device and virtualizes the slave device into a device of a keyboard and a mouse of a computer, the encoding end control chip realizes the operation of the virtual keyboard and the virtual mouse of the video source host by using the keyboard data and the mouse data obtained by analysis, and the effect that the decoding device remotely controls the encoding device through a KVM is achieved. The encoding equipment is provided with a USB interface, is connected with a video source host and transmits signals by using the USB interface so as to realize the operation of the virtual keyboard and mouse of the video source host.
The decoding device is also used for responding to the operation of a user, disconnecting the coding device which is currently requested and needs remote control, and selecting another coding device to realize the control of a remote keyboard and a remote mouse of another coding device. The method comprises the following steps that a display displays a menu which can be connected with coding equipment in decoding equipment, a user can directly operate on a keyboard and a mouse, and coding equipment to be requested is reselected from the menu; in the second implementation mode, the decoding device is in communication connection with the infrared remote controller, and a user can directly select a menu on the infrared remote controller and select one item (namely, coding device) in the menu of the connection device.
In this embodiment, the decoding end control chip and the encoding end control chip are single-chip microcomputers. The coding end control chip is positioned on the coding end single chip microcomputer board, and the coding end arm processor is positioned on the coding end arm board; the decoding end control chip is positioned on the decoding end single chip microcomputer board, and the decoding end arm processor is positioned on the decoding end arm board.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A video monitoring system based on KVM comprises a plurality of coding devices and decoding devices, wherein each coding device is connected with a video source host respectively so as to acquire a video source from the video source host and carry out coding to form a coder image, the decoding devices are connected with a mouse and a keyboard to carry out KVM control so as to realize the on-demand of each coding device, decode the corresponding coder image after on-demand and then play the coded image on a local display, and the video monitoring system is characterized in that each coding device comprises a coding end control chip and a coding end arm processor, and each decoding device comprises a decoding end control chip and a decoding end arm processor;
when the KVM-based video monitoring system performs remote control: firstly, selecting coding equipment needing remote control through decoding equipment, and then requesting an encoder image of the coding equipment needing remote control; then acquiring keyboard and mouse signals generated by the operation of a user on the mouse and the keyboard, acquiring the keyboard and mouse signals by a decoding end control chip, sending the keyboard and mouse signals to a decoding end arm processor connected with the decoding end arm chip through a serial port, and analyzing corresponding keyboard data and mouse data by the decoding end arm processor; the arm processor at the decoding end encapsulates the keyboard data and the mouse data, and then sends the keyboard data and the mouse data to the arm processor on the encoder through the network port of the decoding equipment; an arm processor on a remote encoder receives and analyzes the keyboard data and the mouse data, and then an arm processor at an encoding end sends the analyzed keyboard data and mouse data to an encoding end control chip; the encoding end control chip realizes the function of a USB slave device and virtualizes the slave device into a device of a keyboard and a mouse of a computer, the encoding end control chip realizes the operation of the virtual keyboard and the virtual mouse of the video source host by using the keyboard data and the mouse data obtained by analysis, and the effect that the decoding device remotely controls the encoding device through a KVM is achieved;
the decoding device is also used for responding to the operation of a user, disconnecting the coding device which is currently requested and needs remote control, and selecting another coding device to realize the control of a remote keyboard and a remote mouse of another coding device.
2. The KVM-based video monitoring system of claim 1, wherein the decoding side control chip and the encoding side control chip are single-chip microcomputers.
3. The KVM-based video monitoring system of claim 2, wherein said encoder side control chip is located on an encoder side monolithic board, and the encoder side arm processor is located on an encoder side arm board; the decoding end control chip is positioned on the decoding end single chip microcomputer board, and the decoding end arm processor is positioned on the decoding end arm board.
4. The KVM-based video monitoring system of claim 1, wherein the mouse and keyboard are a USB mouse and USB keyboard, the USB mouse and USB keyboard connected to the decoding device through a USB interface.
5. The KVM-based video monitoring system of claim 1, wherein the encoding device has a USB interface, connects to a video source host, and transmits signals via the USB interface to realize the virtual keyboard and mouse operations of the video source host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911314074.1A CN111158501B (en) | 2019-12-18 | 2019-12-18 | Video monitoring system based on KVM |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911314074.1A CN111158501B (en) | 2019-12-18 | 2019-12-18 | Video monitoring system based on KVM |
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| Publication Number | Publication Date |
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| CN111158501A true CN111158501A (en) | 2020-05-15 |
| CN111158501B CN111158501B (en) | 2024-04-09 |
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| CN201911314074.1A Active CN111158501B (en) | 2019-12-18 | 2019-12-18 | Video monitoring system based on KVM |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021232818A1 (en) * | 2020-05-20 | 2021-11-25 | 威创集团股份有限公司 | Kvm-based distributed system, operation and control method, and medium |
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| CN111158501B (en) | 2024-04-09 |
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