CN111163275A - System supporting KVM and multi-channel pre-monitoring - Google Patents
System supporting KVM and multi-channel pre-monitoring Download PDFInfo
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- CN111163275A CN111163275A CN201911323797.8A CN201911323797A CN111163275A CN 111163275 A CN111163275 A CN 111163275A CN 201911323797 A CN201911323797 A CN 201911323797A CN 111163275 A CN111163275 A CN 111163275A
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- mouse
- keyboard
- remote control
- monitoring
- video source
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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
- 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
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
Abstract
The invention discloses a system supporting KVM and multi-channel pre-monitoring, which can respectively switch the seamless remote control entering (KVM keyboard and mouse operation when entering the remote control) and remote control exiting of 9 pre-monitoring pictures to pre-monitoring by pre-monitoring 9 pictures, wherein an ARM dual-core system simultaneously supports the decoding display of 9 different 1080P60 source pictures, and the end-to-end coding and decoding delay time is within 20 milliseconds when one picture is remotely controlled.
Description
Technical Field
The invention relates to the field of display control systems, in particular to a system supporting KVM and multi-channel pre-monitoring.
Background
The image pre-monitoring is that the input signal source in the video splicer is displayed on the client end connected with the video splicer in a previewing mode, namely, the content of the signal can be previewed before being displayed on the display terminal. Traditional distributed display control system: there is no pre-monitoring screen and no concept of dual pre-monitoring and remote control systems, and the clicked screen is the remote control kvm (keyboard video mouse) function, which cannot distinguish the pre-monitoring from the remote control.
Disclosure of Invention
The technical scheme adopted by the invention for solving the technical problems is as follows: a system supporting KVM and multi-channel pre-monitoring is constructed, which comprises a seat device and an input node device which is connected with the seat device in a communication way,
the seat equipment comprises a mouse, a keyboard, a display, a keyboard and mouse acquisition module and an ARM dual-core system, wherein the keyboard and mouse acquisition module is realized by adopting an STM32F407 single chip microcomputer, is connected with the mouse and the keyboard through a USB interface, is connected with the ARM dual-core system through a Uart and is used for acquiring keyboard and mouse signals and transmitting the keyboard and mouse signals to the ARM dual-core system, and the display is connected with an output interface of the ARM dual-core system; the ARM dual-core system adopts an HIS scheme to realize a pre-monitoring mode and a remote control mode, the pre-monitoring mode supports setting 9 split screens on a display and can simultaneously analyze 9 paths of videos, and the remote control mode supports one path of remote control and is used for remotely controlling input node equipment;
each input node device comprises an input source device, a keyboard and mouse reduction module and a video source host, wherein the input source device is connected with the video source host to transmit a video source, and the keyboard and mouse reduction module is connected with the video source host through a USB interface and is connected with the input source device through a Uart; the input source equipment is used for acquiring video source signals from the video source host, sending the video source signals to corresponding seat end equipment through an IP address, receiving key mouse signals sent by the seat equipment in a remote control mode and transmitting the key mouse signals to the key mouse restoration module; the keyboard and mouse reduction module is realized by adopting an STM32F407 single chip microcomputer and is used for converting the transparently transmitted keyboard and mouse signals into standard USB signals and transmitting the standard USB signals to the video source host through a USB interface, so that the video source is controlled.
Furthermore, in the system supporting KVM and multi-channel pre-monitoring, a 9-split screen mode is set in the ARM dual-core system, 1080P60 audio and video signals of 9 different input source devices can be decoded simultaneously, the 9-split screen mode and the decoding process belong to the pre-monitoring mode, and the mouse and the keyboard are used for controlling the pre-monitoring mode at the moment to perform interface operation and configuration.
Furthermore, in the system supporting KVM and multi-channel pre-monitoring of the present invention, when a certain pre-monitoring screen needs to be remotely controlled, the remote control screen is accessed through the mouse, the KVM keyboard and mouse operation is performed, the remote control screen is accessed, and the KVM keyboard and mouse operation process belongs to the remote control system.
Furthermore, in the system supporting KVM and multi-channel pre-monitoring of the present invention, when the remote control mode needs to be exited, the remote control mode exits through the keyboard shortcut key, then the system immediately enters the pre-monitoring mode, and simultaneously the mouse and the keyboard exit the KVM and enter the pre-monitoring mode.
Furthermore, in the system supporting KVM and multi-channel pre-monitoring, the remote control mode supports one-channel remote control, and the end-to-end delay is within 20 milliseconds.
Further, in the system supporting KVM and multi-channel pre-monitoring of the present invention, the video source host is a PC device.
Further, in the system supporting KVM and multi-channel pre-monitoring, the input source equipment and the ARM dual-core system are connected in a bidirectional mode through the Internet.
The system supporting KVM and multi-channel pre-monitoring has the following beneficial effects: the invention can respectively switch the 9 paths of pre-monitoring pictures to pre-monitoring when the pictures enter the remote control (the remote control can also be used for KVM key mouse operation) and exit the remote control in a seamless way, an ARM dual-core system simultaneously supports the decoding display of 9 paths of different 1080P60 source pictures, and the end-to-end coding and decoding delay is within 20 milliseconds during one path of remote control.
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 system supporting KVM and multi-way pre-monitoring according to the present invention;
FIG. 2 is a flow chart of pre-monitoring and on-demand.
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, FIG. 1 is a block diagram of an embodiment of a system supporting KVM and multi-way pre-monitoring according to the present invention. In this embodiment, the system supporting KVM and multi-channel pre-monitoring includes a seat device and an input node device communicatively connected to the seat device.
The seat equipment comprises a mouse, a keyboard, a display, a keyboard and mouse acquisition module and an ARM dual-core system, wherein the keyboard and mouse acquisition module is realized by adopting an STM32F407 single chip microcomputer, is connected with the mouse and the keyboard through a USB interface, is connected with the ARM dual-core system through a Uart and is used for acquiring keyboard and mouse signals (keyboard signals and the mouse) and transmitting the keyboard and mouse signals to the ARM dual-core system, and the display is connected with an output interface of the ARM dual-core system; the ARM dual-core system adopts an HIS scheme to realize a pre-monitoring mode and a remote control mode, the pre-monitoring mode supports setting 9 split screens on a display and can simultaneously analyze 9 paths of videos, the remote control mode supports one path of remote control and is used for remotely controlling input node equipment, and the end-to-end delay is within 20 milliseconds.
Each input node device comprises an input source device, a keyboard and mouse reduction module and a video source host, wherein the input source device is connected with the video source host to transmit a video source and can transmit a low-delay picture and a narrow-band coding picture. The keyboard and mouse restoring module is connected with a video source host through a USB interface and is connected with input source equipment through a Uart; the input source equipment is used for acquiring video source signals from the video source host, sending the video source signals to corresponding seat end equipment through an IP address, receiving key mouse signals sent by the seat equipment in a remote control mode and transmitting the key mouse signals to the key mouse restoration module; the key mouse reduction module is realized by adopting an STM32F407 single chip microcomputer and is used for converting a transparent key mouse signal into a standard USB signal and transmitting the standard USB signal to the video source host through a USB interface, so that a video source is controlled, and a video source acquired by input source equipment is the controlled video source.
In this embodiment, a 9-split screen mode is set in the ARM dual-core system, and can simultaneously decode 1080P60 audio/video signals of 9 different input source devices, the 9-split screen mode and the decoding process belong to a pre-monitoring mode, and the mouse and the keyboard are used for implementing the pre-monitoring mode at this time to perform interface operation and configuration. Referring to fig. 2, the ARM dual-core system is logged in for pre-monitoring on demand, 9 pre-monitoring pictures are displayed on the display, then, the user can perform low-delay on demand, one low-delay picture is displayed on the display after on demand, the user can select to quit on demand for pre-monitoring, then quit on demand state, and 9 pre-monitoring pictures are displayed on the display again.
When a certain pre-monitoring picture needs to be remotely controlled, a mouse enters a path of remote control picture, KVM keyboard and mouse operation is performed (KVM is remotely accessed and controlled by directly connecting a keyboard and a mouse (KVM) port), the remote control picture is entered, and the KVM keyboard and mouse operation process belongs to a remote control system. When the remote control mode needs to be exited, the remote control mode exits through the keyboard shortcut key, then the system immediately enters the pre-monitoring mode, and meanwhile the mouse and the keyboard exit the KVM and enter the pre-monitoring mode. In the remote control mode, the video source host acquires a standard USB signal, so that the video source is controlled.
The invention completely realizes the independence of the pre-monitoring system and the remote control system, distinguishes the pre-monitoring from the low-delay remote control, can directly enter 1-path full-screen low-delay picture (the end-to-end coding and decoding delay is less than 20ms) through a mouse when the pre-monitored picture needs to enter the remote control, can carry out KVM key mouse operation, and can realize the seamless switching of the pre-monitoring and the remote control through the keyboard shortcut key.
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 (7)
1. A system supporting KVM and multi-channel pre-monitoring comprises a seat device and an input node device which is connected with the seat device in a communication way,
the seat equipment comprises a mouse, a keyboard, a display, a keyboard and mouse acquisition module and an ARM dual-core system, wherein the keyboard and mouse acquisition module is realized by adopting an STM32F407 single chip microcomputer, is connected with the mouse and the keyboard through a USB interface, is connected with the ARM dual-core system through a Uart and is used for acquiring keyboard and mouse signals and transmitting the keyboard and mouse signals to the ARM dual-core system, and the display is connected with an output interface of the ARM dual-core system; the ARM dual-core system adopts an HIS scheme to realize a pre-monitoring mode and a remote control mode, the pre-monitoring mode supports setting 9 split screens on a display and can simultaneously analyze 9 paths of videos, and the remote control mode supports one path of remote control and is used for remotely controlling input node equipment;
each input node device comprises an input source device, a keyboard and mouse reduction module and a video source host, wherein the input source device is connected with the video source host to transmit a video source, and the keyboard and mouse reduction module is connected with the video source host through a USB interface and is connected with the input source device through a Uart; the input source equipment is used for acquiring video source signals from the video source host, sending the video source signals to corresponding seat end equipment through an IP address, receiving key mouse signals sent by the seat equipment in a remote control mode and transmitting the key mouse signals to the key mouse restoration module; the keyboard and mouse reduction module is realized by adopting an STM32F407 single chip microcomputer and is used for converting the transparently transmitted keyboard and mouse signals into standard USB signals and transmitting the standard USB signals to the video source host through a USB interface, so that the video source is controlled.
2. The system supporting KVM and multi-channel pre-monitoring as claimed in claim 1, wherein a 9-split screen mode is set in the ARM dual core system, and is capable of decoding 1080P60 audio/video signals of 9 different input source devices simultaneously, wherein the 9-split screen mode and the decoding process belong to the pre-monitoring mode, and the mouse and the keyboard are used for controlling the pre-monitoring mode at this time to perform interface operation and configuration.
3. The system of claim 1, wherein when a remote control operation is required for one of the pre-monitored frames, the remote control frame is accessed through a mouse, and the KVM keyboard and mouse operation is performed, the remote control frame is accessed and the KVM keyboard and mouse operation process belongs to the remote control system, and the mouse and the keyboard are used in the remote control mode at this time to remotely control the corresponding video source host.
4. The system of claim 1, wherein when the remote mode needs to be exited, the remote mode is exited by a keyboard shortcut key, and then the system immediately enters the pre-monitoring mode, and the mouse and keyboard exit the KVM to enter the pre-monitoring mode.
5. The system of claim 1, wherein the remote control mode supports one remote control and the end-to-end delay is within 20 ms.
6. The system supporting KVM and multi-channel pre-monitoring as recited in claim 1, wherein the video source host is a PC device.
7. The system supporting KVM and multi-channel pre-monitoring as claimed in claim 1, wherein the input source device and the ARM dual core system are connected bi-directionally via internet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911323797.8A CN111163275A (en) | 2019-12-19 | 2019-12-19 | System supporting KVM and multi-channel pre-monitoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911323797.8A CN111163275A (en) | 2019-12-19 | 2019-12-19 | System supporting KVM and multi-channel pre-monitoring |
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| CN111163275A true CN111163275A (en) | 2020-05-15 |
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| CN201911323797.8A Pending CN111163275A (en) | 2019-12-19 | 2019-12-19 | System supporting KVM and multi-channel pre-monitoring |
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Citations (7)
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| CN202093501U (en) * | 2011-01-07 | 2011-12-28 | 深圳市唯奥视讯技术有限公司 | Multi-frame combination preview contact control device for seamless switcher |
| CN104519310A (en) * | 2013-09-29 | 2015-04-15 | 深圳锐取信息技术股份有限公司 | Remote program director control system |
| CN207070236U (en) * | 2017-01-18 | 2018-03-02 | 北京小鸟科技股份有限公司 | IP-based audio frequency and video control Lossless transport and exchange system |
| CN109167975A (en) * | 2018-10-25 | 2019-01-08 | 上海哥瑞利软件有限公司 | A kind of split screen control system |
| CN109308123A (en) * | 2017-07-26 | 2019-02-05 | 刘清钧 | Adaptive KVM synchronizes divider |
| CN208768196U (en) * | 2018-09-19 | 2019-04-19 | 深圳市唯奥视讯技术有限公司 | A kind of video process apparatus with video premonitoring function |
| CN110493570A (en) * | 2019-08-14 | 2019-11-22 | 北京小鸟科技股份有限公司 | Photocell matrix formula KVM attends a banquet cooperative system and its operating method |
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2019
- 2019-12-19 CN CN201911323797.8A patent/CN111163275A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202093501U (en) * | 2011-01-07 | 2011-12-28 | 深圳市唯奥视讯技术有限公司 | Multi-frame combination preview contact control device for seamless switcher |
| CN104519310A (en) * | 2013-09-29 | 2015-04-15 | 深圳锐取信息技术股份有限公司 | Remote program director control system |
| CN207070236U (en) * | 2017-01-18 | 2018-03-02 | 北京小鸟科技股份有限公司 | IP-based audio frequency and video control Lossless transport and exchange system |
| CN109308123A (en) * | 2017-07-26 | 2019-02-05 | 刘清钧 | Adaptive KVM synchronizes divider |
| CN208768196U (en) * | 2018-09-19 | 2019-04-19 | 深圳市唯奥视讯技术有限公司 | A kind of video process apparatus with video premonitoring function |
| CN109167975A (en) * | 2018-10-25 | 2019-01-08 | 上海哥瑞利软件有限公司 | A kind of split screen control system |
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Application publication date: 20200515 |