A structure integrating KVM and firmware burning in a display

Abstract

This utility model belongs to the field of information module integration technology, and particularly relates to a structure for integrating KVM and firmware programming in a display. It includes a USB uplink port, a USB downlink port, a multiplexer unit with data conversion, an HDMI input port, an HDMI output port, and a microcontroller unit. The microcontroller unit includes a USB switch, an HDMI switch, a mode switch, and a microcontroller chip. The microcontroller chip is connected to the USB switch, the HDMI switch, and the mode switch. The USB switch is connected to the USB uplink port; the HDMI switch is connected to the HDMI input port; the multiplexer unit with data conversion is connected to the USB downlink port; both the USB uplink port and the HDMI input port are connected to the host computer; the USB downlink port is connected to a peripheral device; the USB switch is connected to the multiplexer unit with data conversion; and the multiplexer unit with data conversion, the HDMI switch, and the HDMI output port are each connected to the mode switch. By using the structure of this utility model, users can upgrade the display firmware without an additional programming board.

Description

Technical Field

[0001] This utility model belongs to the field of information module integration technology, and in particular relates to a structure that integrates KVM and firmware burning in a display. Background Technology

[0002] With the increasing demand for digital office and multi-device collaboration, the integration of functions in monitors, as core terminals for human-computer interaction, has become an important development trend. To achieve signal switching between multiple hosts and the monitor, current monitors have integrated KVM functionality. For example, patent application number 201110318439.5, entitled "A Structure for Integrating KVM in a Monitor," describes a method that integrates a switching management microcontroller (MCU) within the monitor. This MCU is connected to a USB hub via an interface, and at least one USB input signal is output to the USB hub via a USB MUX. The MCU is connected to a VGA ADC controller and is also connected to the VGA MUX and USB MUX via switching control signals. The MCU also provides a PS / 2 output interface, and the USB hub provides a USB output interface, thus realizing the integration of KVM functionality on the monitor.

[0003] Although existing monitors integrate KVM functionality, firmware upgrades still require disassembling the monitor device and connecting the main control chip's port to an additional dedicated programming board, resulting in complex programming operations and strong device dependency. Utility Model Content

[0004] The purpose of this invention is to provide a structure that integrates KVM and firmware burning into a monitor, aiming to solve the problems of complex burning operations and strong device dependence in the existing technology, so that users can complete monitor firmware upgrades without the need for an additional burning board.

[0005] To achieve the above objectives, this utility model provides a structure for integrating KVM and firmware programming in a display, including a USB uplink port, a USB downlink port, a multiplexer unit with data conversion, an HDMI input port, an HDMI output port, and a microcontroller unit, wherein:

[0006] The microcontroller unit includes a USB switch, an HDMI switch, a mode switching switch, and a microcontroller chip;

[0007] The microcontroller chip is connected to the USB switch, the HDMI switch, and the mode switching switch respectively, and is used to control the on / off state of the USB switch, the HDMI switch, and the mode switching switch;

[0008] The USB switch is connected to the USB upstream port; the HDMI switch is connected to the HDMI input port; the multiplexer with data conversion is connected to the USB downstream port; both the USB upstream port and the HDMI input port are connected to the host computer and are used to receive programming data and video signal data, respectively; the USB downstream port is connected to a peripheral device and is used to receive control commands from the peripheral device; the USB switch is connected to the multiplexer with data conversion and is used to convert the data type of the programming data; the multiplexer with data conversion, the HDMI switch, and the HDMI output port are respectively connected to the mode switch and are used to switch the data type output by the HDMI output port.

[0009] As an optional solution of this utility model, the multiplexer unit with data conversion is connected to several USB downstream ports for connecting different types of peripherals.

[0010] As an optional solution of this utility model, the control commands of the peripheral device include switching firmware upgrade mode and selecting the host in KVM mode.

[0011] As an optional solution of this utility model, the USB switch and the HDMI switch are respectively connected to a plurality of USB uplink ports and HDMI input ports, and are respectively used to receive USB burning data input from any one of the USB uplink ports and video signal data input from any one of the HDMI input ports.

[0012] As an optional solution of this utility model, the multiplexing unit with data conversion is used to convert the USB programming data into IIC programming data.

[0013] As an optional solution of this utility model, the mode switching switch reads only the video signal data in the KVM mode; the mode switching switch reads only the IIC burning data in the firmware upgrade mode.

[0014] The above-mentioned technical solutions in the structure for integrating KVM and firmware burning in a display provided by this utility model embodiment have at least one of the following technical effects:

[0015] This application provides a structure integrating KVM and firmware programming into a monitor. By setting up a multiplexer unit with data conversion and a microcontroller unit, firmware upgrade and programming are integrated with KVM functionality, allowing end users and engineers to freely switch between firmware upgrade and programming and KVM functionality modes. The microcontroller unit enables management of multiple device input sources. In daily operation, it functions as a standard KVM device, seamlessly switching to programming mode during firmware upgrades. Users can complete monitor firmware upgrades without an additional programming board, significantly reducing reliance on dedicated hardware and complex processes. This avoids device failures due to KVM protocol updates or monitor driver version incompatibility, improving the long-term availability of the system. Engineers can handle both office and debugging needs on the same device, directly triggering upgrade mode in test environments, avoiding efficiency losses caused by device switching. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic block diagram of a display that integrates KVM and firmware burning. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0019] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0022] In specific embodiments of this utility model, such as Figure 1 As shown, a structure integrating KVM and firmware programming in a display is provided, including a USB uplink port, a USB downlink port, a multiplexer unit with data conversion, an HDMI input port, an HDMI output port, and a microcontroller unit, wherein:

[0023] The microcontroller unit includes a USB switch, an HDMI switch, a mode switching switch, and a microcontroller chip;

[0024] Both the USB uplink port and the HDMI input port are connected to the host computer and are used to receive USB programming data and video signal data from the host computer, respectively. The number of USB uplink ports and HDMI input ports can be set according to the number of host computers. In this specific embodiment of the present invention, only two USB uplink ports and two HDMI input ports are provided, which are connected to host computer 1 and host computer 2, respectively. The USB uplink port connected to host computer 1 is used to receive USB programming data from host computer 1, and the HDMI input port connected to host computer 1 is used to receive video signal data from host computer 1.

[0025] The USB downstream ports connect to peripherals and are used to receive control commands from them. The number of USB downstream ports can be set according to the types of peripherals that need to be connected. These peripherals include, but are not limited to, mice, keyboards, handwriting input pads, modems, scanners, printers, digital cameras, digital camcorders, and CD burners. In this specific embodiment, only two USB downstream ports are provided, connected to the keyboard and mouse respectively, for inputting control commands. The peripheral control commands include switching firmware upgrade modes and selecting the host in KVM mode. When the keyboard key is pressed 1, host 1 is selected to enter KVM mode, establishing signal communication between the peripheral and host 1, and the HDMI input port transmits video signal data with host 1. When the keyboard key is pressed 2, host 2 is selected to enter KVM mode, establishing signal communication between the peripheral and host 2, and the HDMI input port transmits video signal data with host 2. When the keyboard key is pressed 3, the currently selected host is switched to firmware upgrade mode, and the USB upstream port transmits USB burning data with the currently selected host.

[0026] All USB upstream ports are connected to a USB switch, which in turn is connected to a microcontroller chip. Upon receiving control commands, the microcontroller chip selects any one USB upstream port and its corresponding host for USB programming data transmission by controlling the on / off state of the USB switch. All HDMI input ports are connected to an HDMI switch, which in turn is connected to a microcontroller chip. Upon receiving control commands, the microcontroller chip selects any one HDMI input port and its corresponding host for video signal data transmission by controlling the on / off state of the HDMI switch. All USB downstream ports are connected to a multiplexer unit with data conversion capabilities. This multiplexer unit is connected to the USB switch and acts as a hub, receiving commands from peripheral input devices via the multiplexer unit and the USB switch before being received by the microcontroller unit.

[0027] A mode switching switch is connected to a microcontroller chip and is also connected to a multiplexer unit with data conversion, an HDMI switch, and an HDMI output port. This switch is used to switch the data type output by the HDMI output port. When host 1 is in KVM mode, the microcontroller chip controls the mode switching switch to disconnect data transmission with the multiplexer unit with data conversion, controls the HDMI switch to disconnect other HDMI input ports (except the HDMI input port connected to host 1), and only reads the video signal data corresponding to host 1. The HDMI output port then outputs the video signal data corresponding to host 1. When host 1 is in firmware upgrade mode, the microcontroller chip controls the mode switching switch to disconnect data transmission with the HDMI switch, controls the USB switch to disconnect other USB uplink ports (except the USB uplink port connected to host 1), and only reads the IIC programming data corresponding to host 1. The HDMI output port then outputs the IIC programming data corresponding to host 1. Generally, the firmware upgrade data from host 1 is USB data. The multiplexer unit with data conversion can convert the USB programming data into IIC programming data. In this specific embodiment, the multiplexer unit with data conversion uses an RTS5411T conversion chip.

[0028] The data flow process of this invention in KVM mode is as follows:

[0029] 1. When a control command is pressed on the keyboard, the command is received by the microcontroller chip through the interconnected USB downstream port, the multiplexer unit with data conversion, and the USB switch.

[0030] 2. The microcontroller chip controls the mode switch and HDMI switch according to the control instructions, and only reads the video signal data of the corresponding host and its corresponding HDMI input port.

[0031] 3. The HDMI output port outputs the video signal data read by the mode switch.

[0032] The data flow process of this invention in KVM mode is as follows:

[0033] 1. Pressing the keyboard switches the firmware upgrade mode control command. This control command is received by the microcontroller chip through the interconnected USB downstream port, the multiplexer unit with data conversion, and the USB switch.

[0034] 2. The microcontroller chip controls the USB switch according to the control instructions to read only the USB programming data of the corresponding host and its corresponding USB uplink port.

[0035] 3. The multiplexer unit with data conversion converts USB programming data into IIC programming data.

[0036] 4. The microcontroller chip controls the mode switching switch according to the control command and only reads the IIC programming data output by the multiplexer unit with data conversion.

[0037] 5. The HDMI output port outputs the IIC programming data read by the mode switch and programs it onto the display screen.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An architecture for integrated KVM and firmware burn-in in a display, comprising: It includes a USB upstream port, a USB downstream port, a multiplexer with data conversion, an HDMI input port, an HDMI output port, and a microcontroller unit, among which: The microcontroller unit includes a USB switch, an HDMI switch, a mode switching switch, and a microcontroller chip; The microcontroller chip is connected to the USB switch, the HDMI switch, and the mode switching switch respectively, and is used to control the on / off state of the USB switch, the HDMI switch, and the mode switching switch; The USB switch is connected to the USB upstream port; the HDMI switch is connected to the HDMI input port; the multiplexer with data conversion is connected to the USB downstream port; both the USB upstream port and the HDMI input port are connected to the host computer and are used to receive programming data and video signal data, respectively; the USB downstream port is connected to a peripheral device and is used to receive control commands from the peripheral device; the USB switch is connected to the multiplexer with data conversion and is used to convert the data type of the programming data; the multiplexer with data conversion, the HDMI switch, and the HDMI output port are respectively connected to the mode switch and are used to switch the data type output by the HDMI output port.

2. The structure for integrating KVM and firmware burning in a display according to claim 1, wherein, The multiplexer unit with data conversion is connected to several USB downstream ports for connecting different types of peripherals.

3. The structure for integrating KVM and firmware burning in a display according to claim 1, wherein, The control commands for the peripheral device include switching firmware upgrade mode and selecting the host in KVM mode.

4. The structure for integrating KVM and firmware burning in a display according to claim 1, characterized in that, The USB switch and the HDMI switch are respectively connected to a plurality of USB uplink ports and HDMI input ports, and are respectively used to receive USB burning data input from any of the USB uplink ports and video signal data input from any of the HDMI input ports.

5. The structure for integrating KVM and firmware burning in a display according to claim 4, characterized in that, The multiplexing unit with data conversion is used to convert the USB programming data into IIC programming data.

6. The structure for integrating KVM and firmware burning in a display according to claim 5, characterized in that, The mode switch reads only the video signal data in KVM mode; the mode switch reads only the IIC burning data in firmware upgrade mode.

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