JP2011107914A - Kvm switch, kvm system, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a KVM switch for properly displaying an image from a server on a monitor, even when a plurality of consoles different in resolution or the like are connected. <P>SOLUTION: A KVM switch control part 22 connected between a server and a plurality of consoles includes: an acquisition part 52 for acquiring, from each of the plurality of consoles, device information of a monitor included in the console; a creation part 54 for creating new device information on the basis of a plurality of device information acquired by the acquisition device 52; and a storage control part 56 for storing the new device information created by the creation part 54 in a ROM for EDID. The device information stored in the ROM for EDID is read by the server, and optimal display control is performed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a KVM switch, a KVM system, and a program connected between an information processing apparatus and a plurality of consoles.

  KVM (K: keyboard, V: video, M: mouse) connected between a plurality of servers and a plurality of consoles (each console includes a mouse, a keyboard and a monitor) and between the plurality of servers and the plurality of consoles. ) A KVM switch for switching signals is known.

  In addition, when the server is started up or when the device manager is updated, the server reads the EDID (Extended Display Identification Data) information of the monitor and displays an image on the monitor with an optimal resolution based on the read EDID information. Technology is known. The EDID information is a display-specific ID that conveys information such as the monitor model name, resolution, and screen size.

  Also, in order to improve the usability of the KVM switch for switching between a plurality of servers and a plurality of consoles, there is known a KVM switch for acquiring each name from each of the plurality of servers and storing the acquired name. (For example, Patent Document 1).

JP 2004-5069 A

  For example, as shown in FIG. 1A, when the server 10 and the monitor 11 are directly connected in a one-to-one relationship, the server 10 reads the EDID information of the monitor 11 so that an image is displayed on the monitor 11 with an optimal resolution. Can be displayed. Further, for example, as shown in FIG. 1B, a plurality of servers 10 (for example, three servers 10-1 to 10-3) and one console 30 are connected via the KVM switch 20. When all the servers 10-1 to 10-3 read the EDID information of the monitor 30a included in the console 30, the images from the servers 10-1 to 10-3 are displayed on the monitor 30a with the optimum resolution. it can.

  In addition, for example, when a plurality of servers and a plurality of consoles are connected via the KVM switch, the user selects which console among the plurality of consoles the server reads the EDID information of the monitor. I am letting. However, in this case, if different types of monitors exist in the plurality of consoles, an image is displayed on a monitor with a low specification (for example, resolution) in the plurality of consoles depending on the EDID information of the monitor selected by the user. Things that cannot be done will occur.

  An object of the present invention is to provide a KVM switch, a KVM system, and a program that can prevent an image from a server from being displayed on a monitor even when a plurality of consoles are connected to the KVM switch.

  The present invention provides a KVM switch connected between an information processing apparatus and a plurality of consoles, the acquisition means for acquiring device information of a monitor included in the console from each of the plurality of consoles, and the acquisition means Based on the acquired plurality of device information, a creation unit for creating new device information, and the new device information created by the creation unit are stored in a storage unit in which stored information is read by the information processing device And a storage control unit that performs the storage control. ADVANTAGE OF THE INVENTION According to this invention, even if it is a case where a some console connects to a KVM switch, it can suppress that the image from information processing apparatus is not displayed on a monitor.

  In the above-described configuration, the creation unit may create the new device information that supports contents commonly supported by the plurality of device information. According to this configuration, an image from the information processing apparatus can be displayed on all the monitors included in the plurality of consoles connected to the KVM switch.

  In the above configuration, the creation unit may create the new device information that supports a resolution supported in common among the resolutions supported by each of the plurality of device information. According to this configuration, an image from the information processing apparatus can be displayed on all the monitors included in the plurality of consoles connected to the KVM switch.

  In the above configuration, the creation unit may create the new device information that supports a minimum screen size among screen sizes supported by each of the plurality of device information. According to this configuration, an image from the information processing apparatus can be displayed on all the monitors included in the plurality of consoles connected to the KVM switch.

  The said structure WHEREIN: It can be set as the structure provided with the display control means which displays the said new apparatus information on the said monitor. According to this configuration, the user can know the device information stored in the storage unit.

  The said structure WHEREIN: The said apparatus information can be set as the structure which is EDID information.

  In the above configuration, the KVM switch and the plurality of consoles are connected via a network, and the device information of the monitor is converted into IP packet data and transmitted from the plurality of consoles to the KVM switch. It can be configured.

  The present invention relates to a plurality of consoles each including a monitor, and a device that is connected to the plurality of consoles, acquires device information of the monitor from each of the plurality of consoles, and is created based on the acquired plurality of device information A KVM system comprising: a KVM switch that stores device information in a storage unit; and an information processing device that is connected to the KVM switch and reads the new device information stored in the storage unit. ADVANTAGE OF THE INVENTION According to this invention, even if it is a case where a some console connects to a KVM switch, it can suppress that the image from information processing apparatus is not displayed on a monitor.

  The present invention provides an acquisition unit for acquiring device information of a monitor included in the console from each of the plurality of consoles, a plurality of KVM switches connected between the information processing apparatus and the plurality of consoles acquired by the acquisition unit. Creating means for creating new device information based on the device information, and storage means for storing the new device information created by the creating means in a storage unit in which stored information is read by the information processing device , A program characterized by functioning as. ADVANTAGE OF THE INVENTION According to this invention, even if it is a case where a some console connects to a KVM switch, it can suppress that the image from information processing apparatus is not displayed on a monitor.

  ADVANTAGE OF THE INVENTION According to this invention, even if it is a case where a some console connects to a KVM switch, it can suppress that the image from information processing apparatus is not displayed on a monitor.

FIG. 1A is a schematic diagram (part 1) for explaining reading of EDID information, and FIG. 1B is a schematic diagram (part 2). FIG. 2 is a block diagram illustrating an example of a configuration of a KVM system including a KVM switch according to the embodiment. FIG. 3 is an example of a functional block diagram of an MCU included in the KVM switch according to the embodiment. FIG. 4 is a flowchart illustrating an example of processing executed by the MCU included in the KVM switch according to the embodiment. FIG. 5 is an example of a selection screen displayed on the monitor. FIG. 6 is a flowchart for explaining an example of creation of new EDID information by the MCU. FIG. 7 is a diagram for explaining a specific example of creation of new EDID information by the MCU. FIG. 8 is a block diagram illustrating an example of a configuration of an IP-KVM system including a KVM switch according to the embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 2 is a block diagram illustrating a configuration of the KVM system 100 including the KVM switch 20 according to the embodiment. As illustrated in FIG. 2, the KVM system 100 includes a server 10 as an information processing apparatus, a KVM switch 20, and a console 30. For example, three servers 10-1 to 10-3 are connected to the KVM switch 20 via KVM cables 40-1 to 40-3. Further, for example, two consoles 30-1 and 30-2 are connected to the KVM switch 20 via KVM cables 42-1 and 42-2. The number of servers 10 and consoles 30 is not limited to the above number. A plurality of other servers 10 and consoles 30 may be connected to the KVM switch 20.

  The KVM switch 20 includes an MCU (Micro Control Unit) 22, an EDID (Extended Display Identification Data) ROM 24, a server I / F 26, and a console I / F 28. A plurality of EDID ROMs 24 are provided, and the plurality of EDID ROMs 24-1 to 24-3 correspond to the plurality of servers 10-1 to 10-3, respectively, and the information stored in the EDID ROM 24 is read by the server 10. It is done. The MCU 22 is connected to an EDID ROM 24, a server I / F 26, and a console I / F 28. The EDID ROM 24 and the server I / F 26 are connected.

  The MCU 22 is a control unit, and controls the entire KVM switch 20 such as switching of the KVM signal between the server 10 and the console 30, acquiring EDID information of the monitor 30a included in the console 30, and creating and storing new EDID information. I do. The EDID ROM 24 stores new EDID information created by the MCU 22. The server I / F 26 is an interface with the server 10, and the console I / F 28 is an interface with the console 30.

  Each console 30 includes a monitor 30a, a keyboard 30b, and a mouse 30c. The KVM switch 20 is, for example, based on key data or mouse data input by a keyboard 30b-1 or a mouse 30c-1 included in the console 30-1, and from the plurality of servers 10-1 to 10-3. Select the server connected to -1, and switch the connection. The console 30-2 also switches the connection to the connection target server by the same method.

  Here, for example, when the server 10-1 and the console 30-1 are connected by the KVM switch 20, a data flow between the server 10-1 and the console 30-1 will be briefly described. As shown in FIG. 2, for example, RGB signal image data generated by the server 10-1 is transmitted to the KVM switch 20 via the KVM cable 40-1 as RGB signals (arrow A). The RGB signal image data transmitted to the KVM switch 20 is transmitted as it is to the console 30-1 connected to the KVM switch 20 via the KVM cable 42-1 (arrow B). Thus, the image data generated by the server 10-1 is transmitted to the console 30-1 through the KVM switch 20 in the same signal format, and the image is displayed on the monitor 30a-1 included in the console 30-1. Is displayed.

  For example, key data and mouse data input from the keyboard 30b-1 and mouse 30c-1 included in the console 30-1 are input from the keyboard 30b-1 and mouse 30c-1 via the KVM switch 20. Key data and mouse data in the signal format are input to the server 10-1 (arrows C and D). Therefore, the server 10-1 can be operated by the console 30-1 as if the console 30-1 was directly connected to the server 10-1.

  FIG. 3 is a functional block diagram of the MCU 22 of the KVM switch 20. The MCU 22 executes a control program stored in a built-in ROM. As illustrated in FIG. 3, it functions as a determination unit 50, an acquisition unit 52 (acquisition unit), a creation unit 54 (creation unit), a storage control unit 56 (storage control unit), and a display control unit 58 (display control unit).

  The determination unit 50 determines a user operation on the selection screen displayed on the monitor 30a. The acquisition unit 52 acquires EDID information of the monitor 30 a included in the console 30 from each of the plurality of consoles 30 in accordance with the user operation determined by the determination unit 50. The creation unit 54 creates new EDID information that supports, for example, the contents commonly supported by all of the plurality of EDID information based on the plurality of EDID information acquired by the acquisition unit 52. The storage control unit 56 stores the EDID information created by the creation unit 54 in the EDID ROM 24. The display control unit 58 displays a selection screen on the monitor 30a, and displays the EDID information stored in the EDID ROM 24 by the storage control unit 56 on the selection screen displayed on the monitor 30a.

  FIG. 4 is a flowchart illustrating processing executed by the MCU 22 included in the KVM switch 20 according to the embodiment. As shown in FIG. 4, for example, when the server 10-1 and the console 30-1 are connected, the MCU 22 displays a selection screen on the monitor 30a-1 included in the console 30-1 (step S10). Further, the MCU 22 may display the selection screen by a hot key input from the user.

  FIG. 5 is an example of the selection screen 60 displayed on the monitor 30a-1. As shown in FIG. 5, the selection screen 60 includes, for example, an AUTO button 61 and a CUSTOM button 62, and can select either Auto or Custom. Furthermore, when a MONITOR # 1 button 63 and a MONITOR # 2 button 64 are provided and the CUSTOM button 62 is selected, either MONITOR # 1 or MONITOR # 2 can be selected. Here, MONITOR # 1 corresponds to the monitor 30a-1 in FIG. 2, and MONITOR # 2 corresponds to the monitor 30a-2. That is, the monitor 30a-1 can be selected by pressing the MONITOR # 1 button 63, and the monitor 30a-2 can be selected by pressing the MONITOR # 2 button 64. Further, the selection screen 60 includes a display portion 65 for displaying a model name included in the EDID information stored in the EDID ROM 24, a CANCEL button 66, and an EXECUTE button 67. Operations on the AUTO button 61, the CUSTOM button 62, the MONITOR # 1 button 63, the MONITOR # 2 button 64, the CANCEL button 66, and the EXECUTE button 67 can be performed by the user operating the mouse 30c-1. The AUTO button 61, the CUSTOM button 62, the MONITOR # 1 button 63, and the MONITOR # 2 button 64 are selected by making a black circle by operating the mouse 30c-1. Hereinafter, the flowchart of FIG. 4 will be described with reference to FIG.

  The MCU 22 determines whether or not the EXECUTE button 67 on the selection screen 60 has been pressed (step S12). If No in step S12, the MCU 22 determines whether or not the CANCEL button 66 has been pressed (step S14). If No in step S14, the determination is repeated. If Yes in step S14, the MCU 22 stops displaying the selection screen 60 on the monitor 30a-1 and hides the selection screen 60 (step S16). By hiding the selection screen 60, the EDID information cannot be stored in the EDID ROM 24 as described later. For this reason, the non-display of the selection screen 60 is executed when the EDID information is already stored in the EDID ROM 24 and the stored contents are not changed.

  If Yes in step S12, the MCU 22 determines which of the AUTO button 61 and the CUSTOM button 62 on the selection screen 60 has been pressed and which of Auto and Custom has been selected (step S18). If it is determined in step S18 that Custom has been selected, the MCU 22 next determines which of the MONITOR # 1 button 63 and the MONITOR # 2 button 64 has been pressed and which of the monitor 30a-1 and the monitor 30a-2 has been selected. (Step S20). If the MONITOR # 1 button 63 is pressed in step S20 and it is determined that the monitor 30a-1 is selected, the MCU 22 acquires the EDID information of the monitor 30a-1 (step S22). When the MONITOR # 2 button 64 is pressed in step S20 and it is determined that the monitor 30a-2 is selected, the MCU 22 acquires the EDID information of the monitor 30a-2 (step S24).

  If it is determined in step S18 that Auto is selected, the MCU 22 first acquires the EDID information of the monitor 30a-1 (step S26). Next, the MCU 22 acquires the EDID information of the monitor 30a-2 (Step S28). Then, the MCU 22 creates new EDID information based on the EDID information of the monitor 30a-1 and the EDID information of the monitor 30a-2 acquired in step S26 and step S28 (step S30). Here, the creation of new EDID information will be described using the flowchart of FIG.

  As shown in FIG. 6, the MCU 22 performs a logical sum of the acquired EDID information of the monitor 30 a-1 and the EDID information of the monitor 30 a-2, so that a new EDID that supports only items supported together by the two EDID information. Information is created (step S40).

  FIG. 7 is a specific example of creating new EDID information from the EDID information of the monitor 30a-1 and the EDID information of the monitor 30a-2 by the method described with reference to FIG. As shown in FIG. 7, the items of EDID information include, for example, the monitor manufacturer name, model name, screen size, power management, separate sync, composite sync, DDC / CI, standard resolution, and individual resolution. Note that the standard resolution is a resolution that is commonly used by each manufacturer and the content cannot be adjusted.The individual resolution differs for each manufacturer, and fine adjustments such as refresh rate, front porch, and back porch are possible. It means possible resolution.

  As for the details of the EDID information of the monitor 30a-1, the manufacturer name is A company, the model name is Dmodel, the screen size is 410 × 310 mm, and Power Management supports Standby, Suspend, and Active off / sleep. Separate sync is supported, but Composite sync is not supported. DDC / CI is supported. Standard resolutions are 720 x 400 dpi (70 Hz), 640 x 480 dpi (60 Hz, 640 x 480 dpi (75 Hz), 800 x 600 dpi (60 Hz), 800 x 600 dpi (75 Hz), 1024 x 768 dpi (60 Hz), 1024 x 768 dpi ( 75 Hz), 1280 × 1024 dpi (75 Hz), 1280 × 1024 dpi (60 Hz), 1600 × 1200 dpi (60 Hz), 1152 × 684 dpi (75 Hz), and 1600 × 1200 dpi (60 Hz) for individual resolution. Note that 60 Hz, 70 Hz, and 75 Hz are monitor refresh rates.

  As for the details of the EDID information of the monitor 30a-2, the manufacturer name is B company, the model name is Emodel, the screen size is 350 × 190 mm, and Power Management supports Standby, Suspend, and Active off / sleep. Separate sync is supported, but Composite sync is not supported. DDC / CI is not supported. For standard resolution, 640 × 400 dpi (70 Hz), 720 × 400 dpi (70 Hz), 640 × 480 dpi (60 Hz), 800 × 600 dpi (60 Hz), 1024 × 768 dpi (60 Hz), 1024 × 768 dpi (70 Hz), 1152 × 900 dpi Supports a resolution of (60 Hz). For the individual resolution, 1360 × 768 dpi (60 Hz) is supported. 60 Hz and 70 Hz are monitor refresh rates.

  From such EDID information of the monitor 30a-1 and EDID information of the monitor 30a-2, new EDID information that supports all items that are commonly supported by the two EDID information is created. Specifically, as shown in FIG. 7, the new EDID information has a manufacturer name and a model name of, for example, company C and KVMswitch. The smaller screen size 350 × 190 mm is supported so that the screen size is supported by two pieces of EDID information. Power Management supports Standby, Suspend, Active off / sleep, Separate sync is supported, Composite sync and DDC / CI are not supported. As for the standard resolution, 720 × 400 dpi (70 Hz), 640 × 480 dpi (60 Hz), 800 × 600 dpi (60 Hz), and 1024 × 768 dpi (60 Hz) are supported so that the resolution supported in common by the two EDID information is supported. Support resolution. Similarly to the standard resolution, the resolution supported by the two EDID information is supported in the same manner as the standard resolution. Therefore, the supported resolution does not occur in FIG. 60 Hz and 70 Hz are monitor refresh rates.

  Returning to FIG. 4, the MCU 22 uses one of the EDID information of the monitor 30a-1 acquired in step S22, the EDID information of the monitor 30a-2 acquired in step S24, and the new EDID information created in step S30 for EDID. It memorize | stores in ROM24 (step S32). Next, the MCU 22 displays the model name in the EDID information stored in the EDID ROM 24 on the display portion 65 of the selection screen 60 shown in FIG. 5 (step S34). In the embodiment, since the AUTO button 61 is selected as shown in FIG. 5, KVMswitch is displayed on the display portion 65. The process ends as described above.

  As described above, according to the embodiment, when Auto is selected by the user's operation on the selection screen 60, the KVM switch 20 includes the monitor 30a included in the console 30 from each of the plurality of consoles 30 connected to the KVM switch 20. EDID information is acquired. Then, the KVM switch 20 creates new EDID information based on the acquired plurality of EDID information, and stores the created EDID information in the EDID ROM 24 from which the stored information is read by the server 10. That is, the new EDID information stored in the EDID ROM 24 becomes EDID information considering each of the EDID information of the plurality of monitors 30a. Therefore, when the server 10 is started up or when the device manager is updated, the server 10 reads the EDID information stored in the EDID ROM 24, so that a plurality of monitors 30a connected to the KVM switch 20 can receive from the server 10. It can suppress that an image is not displayed.

  In the embodiment, the KVM switch 20 creates new EDID information that supports contents commonly supported by the acquired plurality of EDID information. In other words, the KVM switch 20 creates new EDID information having contents suitable for all of the acquired plurality of EDID information. For example, the KVM switch 20 creates new EDID information that supports a resolution supported in common among the resolutions supported by each of the plurality of EDID information. Also, for example, for Power Management, Separate sync, Composite sync, and DDC / CI, the KVM switch 20 creates new EDID information that supports the contents that are commonly supported by a plurality of EDID information. Further, for example, the KVM switch 20 creates new EDID information that supports the minimum screen size from among the screen sizes supported by each of the plurality of EDID information. As a result, new EDID information that supports the EDID information of the monitor 30 a with low specifications among the plurality of monitors 30 a connected to the KVM switch 20 is stored in the EDID ROM 24. Therefore, the image from the server 10 can be displayed on all the monitors 30a connected to the KVM switch 20. The KVM switch 20 supports a part of the contents that are commonly supported, except when creating new EDID information that supports all the contents that are commonly supported by the plurality of acquired EDID information. It is also possible to create new EDID information.

  Further, as shown in FIG. 5, the KVM switch 20 displays new EDID information stored in the EDID ROM 24 on the selection screen 60 displayed on the monitor 30a. Thereby, the user can know the EDID information stored in the EDID ROM 24. Therefore, for example, a case where erroneous EDID information is stored in the EDID ROM 24 due to a user operation error on the selection screen 60 can be recognized.

  In the embodiment, the case where the KVM switch 20 acquires EDID information from the monitor 30a and creates new EDID information based on the acquired EDID information is shown as an example. Newly created device information acquired from the monitor 30a is not limited to EDID information, and may be device information including information such as resolution and screen size that can be supported by the monitor 30a.

  In the embodiment, the server 10 and the KVM switch 20 are connected by a KVM cable 40, and the console 30 and the KVM switch 20 are connected by a KVM cable 42. However, the present invention is not limited to this. It is not necessarily done. The server 10 and the KVM switch 20 may be connected by a KVM cable, and the console 30 and the KVM switch 20 may be an IP-KVM system connected via a network.

  Here, FIG. 8 shows a block diagram of a configuration of an IP-KVM system 200 including the KVM switch 20 according to the embodiment. As shown in FIG. 8, the IP-KVM system 200 includes a server 10 as an information processing apparatus, a KVM switch 20, a monitor 30a connected to a personal computer 70 (hereinafter referred to as PC 70), a keyboard 30b, and a mouse 30c. A console 30 is provided. Note that the PC 70 may be a notebook PC including a monitor 30a, a keyboard 30b, and a mouse 30c in an integrated manner. The server 10 and the KVM switch 20 are connected by a KVM cable 40. The KVM switch 20 and the PC 70 are connected via the network 80. In FIG. 8, the description of the components already described in FIG. 2 is omitted.

  Here, the flow of data between the server 10 and the console 30 in the case of the IP-KVM system 200 will be briefly described. For example, image data of an RGB signal generated by the server 10 is transmitted to the KVM switch 20 as an RGB signal (arrow A) and converted into IP packet data by the KVM switch 20. The IP packet data is transmitted to the PC 70 via the network 80 (arrow B), and the image data of the same RGB signal as the signal format of the image data generated by the server 10 is acquired from the IP packet data by the PC 70 and the image is displayed on the monitor 30a. Is displayed. Alternatively, the IP packet data is transmitted to the PC 70 via the network 80, and the image data of the server 10 is displayed on the monitor 30a on the browser of the PC 70.

  The key data and mouse data input by the keyboard 30b and the mouse 30c are converted into IP packet data by the PC 70, and then transmitted to the KVM switch 20 via the network 80 (arrow C). Then, key data and mouse data are acquired from the IP packet data by the KVM switch 20, and key data and mouse data having the same signal format as the signals input by the console 30 are input to the server 10 (arrow D).

  As illustrated in FIG. 8, the PC 70 includes a CPU (Central Processing Unit) 72 as a control unit and a ROM 74 including a control program for controlling the CPU 72. The CPU 72 executes the software stored in the ROM 74 to save the EDID information of the monitor 30a connected to the PC 70 in a registry in the PC 70. Then, the CPU 72 converts the EDID information stored in the registry into IP packet data and transmits it to the KVM switch 20 (arrow C).

  As shown in FIG. 8, when the KVM switch 20 and the console 30 are connected via the network 80, the EDID information is converted into IP packet data and transmitted from the console 30 to the KVM switch 20. Even in such a case, the MCU 22 of the KVM switch 20 executes the flowchart shown in FIG. 4 to acquire the EDID information of the monitor 30a included in each of the plurality of consoles 30, and based on the acquired plurality of EDID information. The new EDID information created in this way can be stored in the EDID ROM 24. Thereby, it can suppress that the image from the server 10 is not displayed with the some monitor 30a.

  In the embodiment, a recording medium on which a software program for realizing the function of the KVM switch 20 is recorded is supplied to the KVM switch 20, and the MCU 22 of the KVM switch 20 reads and executes the program recorded on the recording medium. By doing so, the same effects as in the embodiment can be obtained. Examples of the recording medium that supplies the program include a CD-ROM (Compact Disc Read Only Memory), a DVD (Digital Versatile Disc), and an SD (Secure Digital) card.

  In addition, this invention is not limited to the Example mentioned above, In the range which does not deviate from the summary, it can change and implement variously.

10 server 11 monitor 20 KVM switch 22 MCU
24 ROM for EDID
26 Server I / F
28 Console I / F
30 console 30a monitor 30b keyboard 30c mouse 40 KVM cable 42 KVM cable 50 determination unit 52 acquisition unit 54 creation unit 56 storage control unit 58 display control unit 60 selection screen 61 AUTO button 62 CUSTOM button 63 MONITOR # 1 button 64 MONITOR # 2 button 65 Display part 66 CANCEL button 67 EXECUTE button 70 Personal computer 80 Network 100 KVM system 200 IP-KVM system

Claims (9)

A KVM switch connected between the information processing apparatus and a plurality of consoles,
Obtaining means for obtaining device information of a monitor included in the console from each of the plurality of consoles;
Creating means for creating new device information based on the plurality of device information acquired by the acquiring unit;
A storage control unit that stores the new device information created by the creation unit in a storage unit in which stored information is read by the information processing device.   2. The KVM switch according to claim 1, wherein the creation unit creates the new device information that supports contents commonly supported by the plurality of pieces of device information.   The said creation means produces the said new apparatus information which supports the resolution supported in common among the resolutions supported by each of these several apparatus information, The Claim 1 or 2 characterized by the above-mentioned. KVM switch.   4. The device according to claim 1, wherein the creation unit creates the new device information that supports a minimum screen size from among screen sizes supported by each of the plurality of device information. The KVM switch described in the item.   5. The KVM switch according to claim 1, further comprising display control means for displaying the new device information on the monitor.   6. The KVM switch according to claim 1, wherein the device information is EDID information.   The KVM switch and the plurality of consoles are connected via a network, and the device information of the monitor is converted into IP packet data and transmitted from the plurality of consoles to the KVM switch. The KVM switch according to any one of claims 1 to 6. Multiple consoles, each containing a monitor,
A KVM switch connected to the plurality of consoles, acquiring device information of the monitor from each of the plurality of consoles, and storing new device information created based on the acquired plurality of device information in a storage unit;
An information processing apparatus that is connected to the KVM switch and reads the new apparatus information stored in the storage unit;
A KVM system comprising: A KVM switch connected between the information processing device and a plurality of consoles,
Acquisition means for acquiring device information of a monitor included in the console from each of the plurality of consoles;
Creating means for creating new device information based on the plurality of device information acquired by the acquiring unit;
Storage means for storing the new device information created by the creation means in a storage unit in which stored information is read by the information processing device;
A program characterized by functioning as

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