CN113534988B - Control method and device of KVM system and computer readable storage medium - Google Patents

Control method and device of KVM system and computer readable storage medium Download PDF

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Publication number
CN113534988B
CN113534988B CN202110721041.XA CN202110721041A CN113534988B CN 113534988 B CN113534988 B CN 113534988B CN 202110721041 A CN202110721041 A CN 202110721041A CN 113534988 B CN113534988 B CN 113534988B
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kvm
module
video
kvm module
target
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CN113534988A (en
Inventor
吴嵩
陆品李
贾正东
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Ater Technology Co ltd
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Ater Technology Co ltd
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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
    • G06F3/0383—Signal control means within the pointing device
    • 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
    • G06F3/04812—Interaction techniques based on cursor appearance or behaviour, e.g. being affected by the presence of displayed objects
    • 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]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • 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
    • G06F3/1438—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 using more than one graphics controller
    • 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
    • G06F3/16—Sound input; Sound output
    • G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path

Abstract

The application provides a control method and device of a KVM system and a computer readable storage medium, relating to the technical field of electronic information, wherein the control method comprises the following steps: displaying a first video-audio interface; acquiring a first operation signal, and judging whether the first operation signal meets a preset operation condition or not; if yes, a mode switching command signal is sent to a target second KVM module corresponding to the first operation signal, so that the target second KVM module sends first video and audio data; and acquiring the first video and audio data, and displaying a second video and audio interface based on the first video and audio data. Based on the technical scheme of the application, the use convenience of the KVM system is improved, and the working efficiency of a user when using the KVM system is improved.

Description

Control method and device of KVM system and computer readable storage medium
Technical Field
The present disclosure relates to the field of electronic information technology, and in particular, to a method and apparatus for controlling a KVM system, and a computer readable storage medium.
Background
In the prior art, a KVM (keyboard, video, and mouse) system includes a plurality of KVM modules, each KVM module is used for connecting with a host, and a user can use the host through the KVM module.
The prior art has the defects that each KVM module in the KVM system works independently, a user needs to operate different KVM modules to realize the use of different hosts, the convenience is poor, and the working efficiency of the user when using the KVM system is low.
Disclosure of Invention
The application provides a control method and device of a KVM system and a computer readable storage medium, which are used for solving the technical problem of lower working efficiency when a user uses the KVM system due to poor convenience of the KVM system in the prior art.
For solving the technical problem, the first technical scheme provided by the application is as follows: a control method of KVM system, KVM system includes: the control method comprises the steps of a first KVM module and a plurality of second KVM modules which are connected in a communication way, wherein the control method is applied to the first KVM module; the control method comprises the following steps: displaying a first video-audio interface; acquiring a first operation signal, and judging whether the first operation signal meets a preset operation condition or not; if yes, a mode switching command signal is sent to a target second KVM module corresponding to the first operation signal, so that the target second KVM module sends first video and audio data; and acquiring the first video and audio data, and displaying a second video and audio interface based on the first video and audio data.
In order to solve the technical problems, a second technical scheme provided by the application is as follows: a control method of KVM system, the control method is applied to a KVM system, wherein, the KVM system includes the first KVM module and several second KVM modules of communication connection; the control method comprises the following steps: the first KVM module displays a first video-audio interface; acquiring a first operation signal, and judging whether the first operation signal meets a preset operation condition or not; if yes, a mode switching command signal is sent to a target second KVM module corresponding to the first operation signal; when the target second KVM module acquires the mode switching command signal, the target second KVM module sends first video and audio data to the first KVM module; the first KVM module acquires first video and audio data and displays a second video and audio interface based on the first video and audio data.
In order to solve the technical problem, a third technical scheme provided by the application is as follows: a control device of a KVM system, comprising: a memory and a processor; the memory is used for storing program instructions and the processor is used for executing the program instructions to realize the control method.
In order to solve the technical problem, a fourth technical scheme provided by the application is as follows: a computer readable storage medium storing program instructions which, when executed by a processor, implement the control method described above.
The beneficial effects of this application lie in: compared with the prior art, when the first KVM module judges that the received first operation signal meets the preset operation condition, the first KVM module sends a mode switching command signal to the target second KVM module so as to send first video and audio data, and the first KVM module displays a second video and audio interface based on the first video and audio data, so that a user can use a host corresponding to the target second KVM module through the first KVM module, the convenience of the KVM system is improved, and the working efficiency of the user when using the KVM system is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an embodiment of a control method of a KVM system of the present application;
FIG. 2 is a schematic diagram of an embodiment of a KVM system of the present application;
FIG. 3 is a schematic diagram of an embodiment of a KVM module of the present application;
FIG. 4 is a flow chart of another embodiment of a control method of the KVM system of the present application;
FIG. 5 is a schematic diagram of a control device of a KVM system according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an embodiment of a computer-readable storage medium of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The terms "first," "second," and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
The application provides a control method of a KVM system, the KVM system comprises: the control method is applied to the first KVM module.
As shown in FIG. 1, FIG. 1 is a flow chart of an embodiment of a control method of a KVM system of the present application, which may comprise:
step S11: and displaying the first video-audio interface.
In this embodiment, each KVM module (e.g., a first KVM module and a second KVM module) may include or be connected to a host with computing capability, and the first KVM module may include or be connected to a display module. The first KVM module can display a first video-audio interface on the display module according to the received local video-audio data.
Specifically, the local audio and video data may be provided by a host computer included in or connected to the first KVM module.
Step S12: and acquiring a first operation signal, and judging whether the first operation signal meets a preset operation condition.
In this embodiment, the first KVM module may include or be connected to an operation module capable of generating an operation signal, and the user may use the operation module to input the first operation signal to the first KVM module. The first KVM module may continuously determine whether the received first operation signal meets a preset operation condition.
Specifically, the operation module may be a mouse and/or a keyboard and/or other operation modules, and the preset operation condition may be that a mouse cursor is double-clicked in a preset area of the first audio-visual interface, or moves in a preset direction in a preset area of the first audio-visual interface, or other conditions set according to a user requirement, which are not limited herein.
Step S13: if so, the mode switching command signal is sent to the target second KVM module corresponding to the first operation signal, so that the target second KVM module sends the first video and audio data.
In this embodiment, when the first operation signal meets the preset operation condition, the target second KVM module corresponding to the first operation signal may be determined based on the first operation signal, and then a mode switch command signal may be sent to the target second KVM module, so that the target second KVM module sends the first video/audio data to the first KVM module.
Specifically, the target second KVM module is a second KVM module corresponding to the first operation signal among the plurality of second KVM modules, and the first video/audio data may be provided by a host included in or connected to the target second KVM module.
Step S14: and acquiring the first video and audio data, and displaying a second video and audio interface based on the first video and audio data.
In this embodiment, the first KVM module may display the second audio/video interface on the display module based on the received first audio/video data sent from the second KVM module, so that the user may access the data of the host included in or connected to the target second KVM module through the first KVM module.
Optionally, after sending the mode switching command signal to the target second KVM module corresponding to the first operation signal, the control method further includes:
and acquiring a second operation signal, and sending the second operation signal to the target second KVM module so that the target second KVM module generates and returns second video and audio data based on the second operation signal.
And acquiring second video and audio data, and displaying a third video and audio interface based on the second video and audio data.
In this embodiment, after the mode switch command signal is sent to the target second KVM module, the user may use the operation module to input the second operation signal to the first KVM module, and the first KVM module may forward the received second operation signal to the target second KVM module, so that the target second KVM module controls the host included or connected to the target second KVM module based on the second operation signal, generates the second video/audio data based on the result of the control, and sends the generated second video/audio data to the first KVM module, and the first KVM module may display the third video/audio interface on the display module based on the received second video/audio data, so that the user may control the host included or connected to the target second KVM module through the first KVM module.
Optionally, the preset operation condition is that the mouse cursor moves in a preset direction in a preset area of the first video interface.
Specifically, the preset operation condition may be that the mouse cursor moves in an up/down/left/right direction at an up/down/left/right boundary of the first audio-visual interface, or that the mouse cursor moves in a certain preset direction within a range of other areas of the first audio-visual interface, which is not limited herein.
Further, the first KVM module and the plurality of second KVM modules are sequentially connected to form a cascade communication loop.
The first operation signal is that the mouse cursor moves to the right direction at the right boundary of the first video interface.
In step S13, sending a mode switch command signal to the target second KVM module corresponding to the first operation signal includes:
and sending a mode switching command signal to a first target second KVM module positioned on the right side of the first KVM module in the cascade communication loop.
Further, the method for sending a mode switch command signal to a first target second KVM module in the cascade communication loop on the right side of the first KVM module includes:
and sending the mode switching command signal to the next second KVM module in the cascade sequence of the cascade communication loop, so that the next second KVM module sends the mode switching command signal to the other next second KVM module in the cascade sequence of the cascade communication loop until the mode switching command signal is sent to the target second KVM module.
Specifically, as shown in fig. 2, fig. 2 is a schematic structural diagram of an embodiment of a KVM system of the present application, where the KVM system includes a first KVM module 21 and N-1 second KVM modules (second KVM modules 22, 23, 24 to 2N), one of the second KVM modules is a target second KVM module 23, the first KVM module 21 and each second KVM module (including the target second KVM module 23) are sequentially connected to form a cascade communication loop in fig. 2, signals or data sent by any one of the second KVM modules can be finally transmitted to the first KVM module 21 through receiving and transmitting of each of the second KVM modules between the cascade communication loop and the first KVM module 21, and signals sent by the first KVM module 21 can also be finally transmitted to any one of the second KVM modules through the cascade communication loop, so as to achieve communication between any two KVM modules in the cascade communication loop.
If the first operation signal is that the mouse cursor moves in the right direction at the right boundary of the first audio visual interface and the preset operation condition is that the mouse cursor moves in the right direction at the right boundary of the first audio visual interface, a mode switching command signal is sent to a first target second KVM module 23 located on the right side of the first KVM module 21 in the cascade communication loop shown in fig. 2, where the target second KVM module 23 is a second KVM module corresponding to the first operation signal preset in each second KVM module.
In addition to the above-mentioned predetermined operating condition, other predetermined operating conditions may be included, and when the first operating signal satisfies any one of the predetermined operating conditions, the target second KVM module 23 may be determined based on the current first operating signal and the mode switch command signal may be sent thereto.
It should be noted that in the conventional KVM system, control devices (such as a mouse and a keyboard) of each host and each client need to be connected to a KVM switch having a bidirectional optical matrix, and the connection between different hosts and different clients needs to be switched through the bidirectional optical matrix. The conventional KVM system has a disadvantage in that the KVM host device and the client device are not the same device, and the number of hosts and the number of clients of the KVM system are limited by the size of the bidirectional optical matrix, so that the size of the bidirectional optical matrix needs to be increased to increase the maximum number of connectable hosts and the number of clients, which is costly and complex.
In this application, compared with the traditional KVM system, the cascade communication loop circuit avoids the use of a bidirectional optical matrix, but adopts a cascade communication connection mode based on optical fiber communication, the delay of communication transmission is also extremely low, and the number of the hosts and the number of clients (such as a mouse, a keyboard, a display and the like) can be directly increased by adding the cascade KVM module, and meanwhile, the KVM host device and the client device use the same device, so that the system has simpler structure and lower hardware cost, and is completely suitable for the control method of the KVM system of this application.
Further, the first KVM module and the plurality of second KVM modules are sequentially connected to form a cascade communication loop.
The first operation signal is that the mouse cursor moves downwards at the lower boundary of the first video interface.
The method for sending the mode switching command signal to the target second KVM module corresponding to the first operation signal comprises the following steps:
and sending a mode switching command signal to a first target second KVM module positioned in the first KVM module according to the cascade communication loop direction.
Specifically, if the first operation signal is that the mouse cursor moves in the downward direction at the lower boundary of the first audio visual interface, and the preset operation condition is that the mouse cursor moves in the downward direction at the lower boundary of the first audio visual interface, the mode switch command signal is sent to the first target second KVM module 23 located on the right side of the first KVM module 21 in the cascade communication loop as shown in fig. 2.
For example, in an actual application scenario, as shown in fig. 2, the KVM system includes a first KVM module 21, and second KVM modules 22 to 2N (including a target second KVM module 23). FIG. 3 is a schematic diagram of an embodiment of a KVM module of the present application. The KVM module comprises: a video and audio de-embedding module 31, a data exchange and command management module 32, a data de-serialization module 33, a data serialization module 34 and a control module 35.
The video/audio de-embedding module 31 may be used to de-embed and separate video/audio data to obtain video data and audio data, or may directly receive audio data, and then send the video data and/or audio data to the data exchange and command management module 32. The audio-video data or audio data received by the audio-video data de-embedding module 31 may be data transmitted by a host connected to the KVM module where the audio-video data de-embedding module 31 is located, i.e. local audio-video data or audio data.
The data exchange and command management module 32 may be configured to interface with a USB interface of a host and a USB interface of a device module (e.g., a mouse and a keyboard in an operation module) for bi-directional transmission of data (e.g., operation signals) between the host and the device module. The data exchange and command management module 32 may also output video data and/or audio data so that the user may read the video data and/or audio data via a local display and/or sound.
In addition, the data exchange and command management module 32 may be connected to the data deserializing module 33 and the data deserializing module 34, respectively, and one KVM module (the first KVM module or the second KVM module) may be communicatively connected to the data deserializing module of the other KVM module (e.g., a fiber optic communication connection implemented by the photoelectric conversion input and the photoelectric conversion output in fig. 3) through the data deserializing module 34 thereof, so as to implement cascading of the two KVM modules. Based on the cascade connection mode of the two KVM modules, each KVM module in the KVM system can be cascade-connected to form a cascade communication loop as shown in fig. 2. The KVM modules can mutually transmit video and audio data and/or operation signals through the cascade communication loop.
The data deserializing module 33 may be used to deserialize the received data before sending the deserialized data to the data exchange and command management module 32.
The data serialization module 34 may be used to receive the data sent by the data exchange and command management module 32 and serialize the data before sending the serialized data to the next KVM module.
The control module 35 is operable to configure the data exchange and command management module 32 accordingly based on user settings to enable identification of the source of data entered by each KVM module based on the data deserialization module.
In the KVM system shown in fig. 2, it is assumed that the display currently connected to the first KVM module 21 displays a frame based on the first audio/video interface generated by the audio/video data of the host connected to the first KVM module 21, and the preset operation condition is that the mouse cursor moves in the right direction at the right boundary of the current audio/video interface.
When the mouse cursor moves in the right direction at the right boundary of the first video-audio interface, the first KVM module 21 sends the mode switching command information to the second KVM module 22 to transmit the video-audio data of the host connected thereto to the first KVM module 21 through the cascade communication loop, and the first KVM module 21 can generate and display the second video-audio interface based on the video-audio data of the second KVM module 22.
When the mouse cursor moves in the right direction at the right boundary of the second video/audio interface, the first KVM module 21 sends the mode switching command information to the second KVM module 23 through the cascade communication loop, so that the first KVM module 21 transmits the video/audio data of the host connected thereto to the first KVM module 21 through the cascade communication loop, and the first KVM module 21 can generate and display the third video/audio interface based on the video/audio data of the second KVM module 23. The second KVM module 23 is the current target second KVM module.
It should be noted that, when the KVM module of the frame displayed by the first KVM module is the first KVM module, both the first KVM module and each second KVM module are in the local control mode, and each KVM module can only control the host connected to itself and display the frame corresponding to the host connected to itself.
When the KVM module of the frame displayed by the first KVM module is a target second KVM module, the first KVM module is in a conference control mode to display the frame of the target second KVM module and control the host corresponding to the second KVM module, the target second KVM module is in a remote control mode to transmit the video and audio data to the first KVM module and is controlled by the operation signal of the first KVM module, and the modules except the target second KVM module in each second KVM module are in a local control mode.
When a KVM module is in the conference control mode, the audio data outputted from the KVM module to the local is from any KVM module except the KVM module in the KVM system, and the video data outputted from the KVM module to the local is from any KVM module in the KVM system. The switching of the video data sources can be performed through the data exchange and command module 32 (the data exchange and command module 32 may be configured with a corresponding button switching module), and the video data output to the local may be the local video data input by the video/audio de-embedding module 31 or the video data of a certain KVM module input by the data de-serializing module 33.
Therefore, through the mode, the user can continuously move the mouse cursor to the right on the right boundary of the current audio visual interface, so that the switching of corresponding pictures of the host controlled by the first KVM module and the displayed host is realized, the host connected with any KVM module in the KVM system can be further realized through the first KVM module, and the use convenience of the KVM system is improved. The above scheme is merely an embodiment of the present application, and the preset operation condition may be other types of conditions (such as that the mouse cursor moves left at the left boundary of the current audio-visual interface, or that the mouse cursor turns back up and down several times within a certain preset range, or a certain keyboard operation signal, or other types of operation signals), which are not limited herein. The corresponding relationship between the preset operation condition and the target second KVM module may also be set according to the user requirement, which is not limited herein.
Compared with the prior art, when the first KVM module judges that the received first operation signal meets the preset operation condition, the first KVM module sends a mode switching command signal to the target second KVM module so as to send first video and audio data, and the first KVM module displays a second video and audio interface based on the first video and audio data, so that a user can use a host corresponding to the target second KVM module through the first KVM module, the convenience of the KVM system is improved, and the working efficiency of the user when using the KVM system is further improved.
The application also provides a control method of the KVM system, which is applied to the KVM system, wherein the KVM system comprises a first KVM module and a plurality of second KVM modules which are connected in a communication way.
As shown in FIG. 4, FIG. 4 is a flow chart of another embodiment of a control method of the KVM system of the present application, which may comprise:
step S21: the first KVM module displays a first video-audio interface.
Step S22: and acquiring a first operation signal, and judging whether the first operation signal meets a preset operation condition.
Step S23: if yes, a mode switching command signal is sent to a target second KVM module corresponding to the first operation signal.
Step S24: when the target second KVM module acquires the mode switching command signal, the target second KVM module sends first video and audio data to the first KVM module.
Step S25: the first KVM module acquires first video and audio data and displays a second video and audio interface based on the first video and audio data.
Optionally, the control method further includes:
when the target second KVM module acquires the mode switching command signal, the local control mode is switched to the remote control mode based on the mode switching command signal.
The target second KVM module acquires a second operation signal sent by the first KVM module, and generates and returns second video and audio data based on the second operation signal.
The first KVM module acquires second video and audio data and displays a third video and audio interface based on the second video and audio data.
In this embodiment, when the target second KVM module in the KVM system receives the mode switch command signal sent by the first KVM module, the target second KVM module can switch its own working mode from the local control mode (the user can only control the local host corresponding to the target second KVM module through the target second KVM module) to the remote control mode (the user can control the local host corresponding to the target second KVM module through the first KVM module).
Compared with the prior art, when the first KVM module judges that the received first operation signal meets the preset operation condition, the first KVM module sends a mode switching command signal to the target second KVM module so as to send first video and audio data, and the first KVM module displays a second video and audio interface based on the first video and audio data, so that a user can use a host corresponding to the target second KVM module through the first KVM module, the convenience of the KVM system is improved, and the working efficiency of the user when using the KVM system is further improved.
The present application further provides a control device of the KVM system, as shown in fig. 5, and fig. 5 is a schematic structural diagram of an embodiment of the control device of the KVM system. The control device 50 of the present embodiment includes: a processor 51, a memory 52 and a bus 53.
The processor 51 and the memory 52 are respectively connected to the bus 53, and the memory 52 stores program instructions, and the processor 51 is configured to execute the program instructions to implement the control method of the KVM system.
In the present embodiment, the processor 51 may also be referred to as a CPU (Central Processing Unit ). The processor 51 may be an integrated circuit chip with signal processing capabilities. Processor 51 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The general purpose processor may be a microprocessor or the processor 51 may be any conventional processor or the like.
Compared with the prior art, when the first KVM module judges that the received first operation signal meets the preset operation condition, the first KVM module sends a mode switching command signal to the target second KVM module so as to send first video and audio data, and the first KVM module displays a second video and audio interface based on the first video and audio data, so that a user can use a host corresponding to the target second KVM module through the first KVM module, the convenience of the KVM system is improved, and the working efficiency of the user when using the KVM system is further improved.
The present application further proposes a computer readable storage medium, as shown in fig. 6, and fig. 6 is a schematic structural diagram of an embodiment of the computer readable storage medium of the present application. The computer readable storage medium 60 has stored thereon program instructions 61, which when executed by a processor (not shown) implement the control method of the KVM system described above.
The computer readable storage medium 60 of the present embodiment may be, but is not limited to, a usb disk, an SD card, a PD optical drive, a mobile hard disk, a high capacity floppy drive, a flash memory, a multimedia memory card, a server, etc.
Compared with the prior art, when the first KVM module judges that the received first operation signal meets the preset operation condition, the first KVM module sends a mode switching command signal to the target second KVM module so as to send first video and audio data, and the first KVM module displays a second video and audio interface based on the first video and audio data, so that a user can use a host corresponding to the target second KVM module through the first KVM module, the convenience of the KVM system is improved, and the working efficiency of the user when using the KVM system is further improved.
In the description of the present application, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., may be considered as a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device (which can be a personal computer, server, network device, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions). For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium may even be paper or other suitable medium upon which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
The foregoing is only the embodiments of the present application, and not the patent scope of the present application is limited by the foregoing description, but all equivalent structures or equivalent processes using the contents of the present application and the accompanying drawings, or directly or indirectly applied to other related technical fields, which are included in the patent protection scope of the present application.

Claims (9)

1. A method for controlling a KVM system, the KVM system comprising: the first KVM module and the second KVM modules are connected in sequence to form a cascade communication loop; the first KVM module comprises or is connected with a display module, and the control method is applied to the first KVM module; the control method comprises the following steps:
displaying a first video-audio interface on the display module;
acquiring a first operation signal, and judging whether the first operation signal meets a preset operation condition or not;
if yes, a mode switching command signal is sent to a target second KVM module corresponding to the first operation signal, so that the target second KVM module sends first video and audio data to the first KVM module;
acquiring the first video and audio data, and displaying a second video and audio interface on the display module based on the first video and audio data;
the sending the mode switching command signal to the target second KVM module corresponding to the first operation signal includes:
and sending the mode switching command signal to the next second KVM module in the cascade sequence of the cascade communication loop, so that the next second KVM module sends the mode switching command signal to the other next second KVM module in the cascade sequence of the cascade communication loop until the mode switching command signal is sent to the target second KVM module.
2. The control method according to claim 1, wherein after the mode switch command signal is sent to the target second KVM module corresponding to the first operation signal, the control method further comprises:
acquiring a second operation signal, and sending the second operation signal to the target second KVM module so that the target second KVM module generates and returns second video and audio data based on the second operation signal;
and acquiring the second video and audio data, and displaying a third video and audio interface based on the second video and audio data.
3. The control method according to claim 1, wherein the predetermined operation condition is that a mouse cursor moves in a predetermined direction in a predetermined area of the first audio-visual interface.
4. The control method according to claim 3, wherein the first operation signal is that a mouse cursor moves in a right direction at a right boundary of the first audio-visual interface;
the sending a mode switching command signal to the target second KVM module corresponding to the first operation signal includes:
and sending the mode switching command signal to a first target second KVM module positioned on the right side of the first KVM module in the cascade communication loop.
5. The control method according to claim 3, wherein the first operation signal is that a mouse cursor moves in a downward direction at a lower boundary of the first audio-visual interface;
the sending a mode switching command signal to the target second KVM module corresponding to the first operation signal includes:
and sending the mode switching command signal to a first target second KVM module positioned in the first KVM module according to the cascade communication loop direction.
6. The control method of the KVM system is characterized by being applied to the KVM system, wherein the KVM system comprises a first KVM module and a plurality of second KVM modules which are connected in a communication way, and the first KVM module and the plurality of second KVM modules are connected in sequence to form a cascade communication loop; the control method comprises the following steps:
the first KVM module displays a first video-audio interface; acquiring a first operation signal, and judging whether the first operation signal meets a preset operation condition or not; if yes, a mode switching command signal is sent to a target second KVM module corresponding to the first operation signal;
when the target second KVM module acquires the mode switching command signal, first video and audio data are sent to the first KVM module;
the first KVM module acquires the first video and audio data and displays a second video and audio interface based on the first video and audio data;
the sending the mode switching command signal to the target second KVM module corresponding to the first operation signal includes:
and sending the mode switching command signal to the next second KVM module in the cascade sequence of the cascade communication loop, so that the next second KVM module sends the mode switching command signal to the other next second KVM module in the cascade sequence of the cascade communication loop until the mode switching command signal is sent to the target second KVM module.
7. The control method according to claim 6, characterized in that the control method further comprises:
when the target second KVM module acquires the mode switching command signal, switching a local control mode into a remote control mode based on the mode switching command signal;
the target second KVM module acquires a second operation signal sent by the first KVM module, generates and returns second video and audio data based on the second operation signal;
and the first KVM module acquires the second video and audio data and displays a third video and audio interface based on the second video and audio data.
8. A control device of a KVM system, comprising: a memory and a processor;
the memory is configured to store program instructions, and the processor is configured to execute the program instructions to implement the control method according to any one of claims 1 to 5 and/or the control method according to any one of claims 6 to 7.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores program instructions, which when executed by a processor, implement the control method according to any one of claims 1 to 5 and/or the control method according to any one of claims 6 to 7.
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