Remote control device

Abstract

The utility model discloses a remote control device which comprises an HDMI input interface, a video conversion chip, a first MIPI interface, a second MIPI interface, an HDMI output interface, a main control chip, an audio output interface and a video output interface. The output end of the HDMI input interface is connected with the input end of the video conversion chip, and the output end of the video conversion chip is connected with the input ends of the first MIPI interface, the second MIPI interface and the HDMI output interface; the output ends of the first MIPI interface and the second MIPI interface are connected with the input end of the main control chip, and the output end of the main control chip is connected with the input ends of the audio output interface and the video output interface; the main control chip is realized by adopting a main control chip of which the model is Junzheng T40N, and the video conversion chip is realized by adopting a video conversion chip RK628D. Through cooperation of the video conversion chip RK628D and the main control chip T40N, the remote control capability is enhanced, the cost is reduced, and high-quality video and audio transmission is realized.

Description

Technical Field

[0001] This utility model relates to the field of remote control technology, and in particular to a remote control device suitable for hardware management and control of remote computer systems. Background Technology

[0002] Existing KVM over IP (or KVMoIP or IP KVM, remote management technology) implementations typically rely on operating system support, making remote control impossible when the system is shut down, frozen, or the BIOS fails to boot. Current remote management technologies mostly use dedicated BMC chips integrated on server motherboards, resulting in high costs and limited applicability to inexpensive personal PCs and commercial motherboards. Furthermore, existing technologies have shortcomings in high-resolution video transmission and audio processing, failing to meet the demands of high-quality remote control. Utility Model Content

[0003] A brief overview of embodiments of the present invention is provided below to provide a basic understanding of certain aspects of the invention. It should be understood that this overview is not an exhaustive summary of the invention. It is not intended to identify key or essential parts of the invention, nor is it intended to limit the scope of the invention. Its purpose is merely to present certain concepts in a simplified form as a prelude to the more detailed description that follows.

[0004] To address the aforementioned technical problems, this application provides a remote control device that improves upon existing hardware implementation schemes for remote management technologies. Through innovative hardware design, it achieves low-cost, high-performance remote control functions while supporting high-resolution video and audio transmission.

[0005] Specifically, a remote control device according to this application includes an HDMI input interface, a video conversion chip, a first MIPI interface, a second MIPI interface, an HDMI output interface, a main control chip, an audio output interface, and a video output interface; wherein, the output terminal of the HDMI input interface is connected to the input terminal of the video conversion chip, and the output terminal of the video conversion chip is connected to the input terminals of the first MIPI interface, the second MIPI interface, and the HDMI output interface; the output terminals of the first MIPI interface and the second MIPI interface are connected to the input terminals of the main control chip, and the output terminal of the main control chip is connected to the input terminals of the audio output interface and the video output interface; the main control chip is implemented using a Junzheng T40N RISC-V IPCamera main control chip, and the video conversion chip is implemented using a Rockchip RK628D front-end video input conversion chip.

[0006] This application optimizes the hardware solution for KVM over IP technology by combining the RK628D video conversion chip and the T40N main control chip. Through its powerful remote access and control capabilities, it provides efficient and secure solutions for various industries and scenarios. The Ingenic T40N RISC-V IPCamera chip, as the main control chip, boasts high integration and scalability. It features 1Gbit DDR memory, supports 4K / 20FPS H265 / H264 video encoding, has an I2S interface and 96kHz audio encoding capability, and an 8T AI Engine to support AI automated processing. The front-end video input conversion chip uses the Rockchip RK628D chip, supporting HDMI 1.4 / 2.0 input, enabling 4K@60fps HDMI input and loop-out, and also supporting 2K@60fps MIPI output. The RK628D video conversion chip also features an I2S interface for expanding HDMI audio loop-out capabilities.

[0007] In use, the remote control device receives video signals from the HDMI input interface. The video conversion chip converts the input video signals into MIPI interface signals, which are then output through the first and second MIPI interfaces. Simultaneously, the HDMI output interface is used to output the original video signals input from the HDMI input interface, thereby achieving HDMI loop-out. The video signals output from the first and second MIPI interfaces are encoded and processed by the main control chip T40N, and then output through the video output interface and audio output interface.

[0008] Furthermore, the remote control device also includes an Ethernet interface connected to the main control chip, which is used to output the video and audio signals processed by the main control chip T40N.

[0009] Furthermore, the remote control device also includes a standard USB host interface (USB 2.0 Device interface) and a USB 2.0 OTG interface (an interface supporting USB On-The-Go function) connected to the main control chip. The standard USB host interface and the USB 2.0 OTG interface are connected to the USB port of the main control chip and can be used as a combined device driver to support virtual USB HID keyboards and mice, and can mount stored ISO optical disc files as virtual optical discs.

[0010] The remote control device implemented in this application, through the above-described scheme, converts HDMI video signals into MIPI signals using the RK628D chip, then encodes the video and audio signals using the T40N main control chip, and finally transmits the encoded signals via an Ethernet interface. Simultaneously, the original HDMI signal can be looped out through the RK628D to maintain the original video quality. This design is suitable for applications requiring high-quality video transmission and remote monitoring. It offers the following advantages:

[0011] 1. Enhanced remote control capabilities: This remote control device, through the T40N main control chip and the standard USB host device interface and USB 2.0 OTG interface, can achieve remote control in the event of shutdown, system crash, or BIOS failure to boot, and supports functions such as remote power on / off, BIOS settings, and system reinstallation.

[0012] 2. Reduced costs: Compared with the existing server BMC chip solution, this device can be deployed on inexpensive personal PCs or motherboards without the need for motherboard or host upgrades, significantly reducing usage costs.

[0013] 3. High-quality video and audio transmission: With the use of the RK628D video conversion chip, it supports high-resolution, high-frame-rate video transmission and high-quality audio processing, and can be used as a remote gaming device to reduce the processing burden on the host CPU and graphics card and improve game smoothness. Attached Figure Description

[0014] This invention can be better understood by referring to the following description taken in conjunction with the accompanying drawings, in which the same or similar reference numerals are used throughout the drawings to denote the same or similar parts. These drawings, together with the following detailed description, are incorporated in and form part of this specification, and are used to further illustrate preferred embodiments of the invention and explain the principles and advantages of the invention. In the drawings:

[0015] Figure 1 This is a schematic diagram of the remote control device of this utility model;

[0016] Figure 2 This is a schematic block diagram of the remote control device in this embodiment;

[0017] Figure 3 This is a schematic diagram of the video conversion chip RK628D in this embodiment;

[0018] Figure 4 This is a schematic diagram of the keyboard and mouse in this embodiment;

[0019] Figure 5 This is a block diagram illustrating the principle of remote control in this embodiment;

[0020] Figure 6 The circuit principle of the video conversion chip RK628D in this embodiment is shown below. Figure 1 ;

[0021] Figure 7 The circuit principle of the video conversion chip RK628D in this embodiment is shown below. Figure 2 ;

[0022] Figure 8 This is the circuit schematic of the interface module in this embodiment; Detailed Implementation

[0023] Embodiments of the present invention will now be described with reference to the accompanying drawings. Elements and features described in one drawing or embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that, for clarity, representations and descriptions of components and processes unrelated to the present invention and known to those skilled in the art have been omitted from the drawings and description.

[0024] In the description of this utility model, it should be understood that the terms "first", "second" and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] See Figure 1 This utility model provides a remote control device, including an HDMI input interface, a video conversion chip, a first MIPI interface, a second MIPI interface, an HDMI output interface, a main control chip, an audio output interface, and a video output interface; wherein, the output end of the HDMI input interface is connected to the input end of the video conversion chip, and the output end of the video conversion chip is connected to the input ends of the first MIPI interface, the second MIPI interface, and the HDMI output interface; the output ends of the first MIPI interface and the second MIPI interface are connected to the input ends of the main control chip, and the output end of the main control chip is connected to the input ends of the audio output interface and the video output interface.

[0027] See Figures 2-8In this embodiment, the main control chip is implemented using the Ingenic T40N RISC-VIPCamera main control chip, denoted as the main control chip T40N. The video conversion chip is implemented using the Rockchip RK628D front-end video input conversion chip, denoted as the video conversion chip RK628D. Figure 2 This is a schematic block diagram of the remote control device for the main control chip in this embodiment. Figure 3 This is a schematic diagram of the video conversion chip RK628D in this embodiment. Figure 4 This is a schematic diagram of the keyboard and mouse in this embodiment. Figure 5 This is a block diagram illustrating the principle of remote control in this embodiment. Figure 6 and Figure 7 These are partial circuit schematics of the RK628D video conversion chip in this embodiment. Figure 8 This is the circuit schematic of the interface module in this embodiment.

[0028] This application optimizes the hardware solution for KVM over IP technology by combining the video conversion chip RK628D and the main control chip T40N. Through its powerful remote access and control capabilities, it provides efficient and secure solutions for various industries and scenarios. This application does not use a dedicated BMC chip; instead, the device uses the Ingenic T40N RISC_VIPCamera chip. The T40 boasts high integration and scalability, with built-in 1Gbit DDR memory and excellent H.265 / H.254 video encoding capabilities at 4K / 20FPS. It features an I2S interface and 96kHz audio encoding capabilities. The T40N has an 8T AI Engine, paving the way for AI automation processing. The front-end video input uses the Rockchip RK628D as the HDMI video loop-out and MIPI out conversion chip. HDMI 1.4 / 2.0 supports HDMI 4K@60fps input and loop-out, allowing connection without occupying a display screen; it also supports 2K@60fps MIPI output. The RK628D features an I2S interface that can expand HDMI audio loop-out capability. Practical verification has shown that the combination of the RK628D video converter chip and the T40N main control chip not only enhances remote control capabilities and reduces costs but also achieves high-quality video and audio transmission.

[0029] In use, the remote control device receives video signals from the HDMI input interface. The video conversion chip converts the input video signals into MIPI interface signals, which are then output through the first and second MIPI interfaces. Simultaneously, the HDMI output interface is used to output the original video signals input from the HDMI input interface, thereby achieving HDMI loop-out. The video signals output from the first and second MIPI interfaces are encoded and processed by the main control chip T40N, and then output through the video output interface and audio output interface.

[0030] As a specific embodiment, the remote control device also includes an Ethernet interface connected to the main control chip. The Ethernet interface is used to output the video and audio signals processed by the main control chip T40N.

[0031] As a specific embodiment, the remote control device also includes a standard USB host interface (USB 2.0 Device interface) and a USB 2.0 OTG interface (an interface supporting USB On-The-Go function) connected to the main control chip. The standard USB host interface and the USB 2.0 OTG interface are connected to the USB port of the main control chip and can be used as a combined device driver to support virtual USB HID keyboards and mice, and can mount stored ISO optical disc files as virtual optical discs.

[0032] The T40N features one USB 2.0 Device and one USB 2.0 OTG port. The USB Device connects to the motherboard's USB port, allowing multiple virtual devices to be connected to a single USB port, such as a virtual USB HID keyboard, an HID keyboard, or a virtual CD / DVD drive.

[0033] Compared to traditional remote control hardware devices, the device described in this application can achieve remote control even when the system is powered off, crashed, or the BIOS fails to boot, supporting functions such as remote power on / off, BIOS settings, and system reinstallation. Reduced costs: Compared to server BMC chip solutions, this device can be deployed on inexpensive personal PCs or motherboards without requiring motherboard or host upgrades, significantly reducing operating costs. High-quality video and audio transmission: Supports high-resolution, high-frame-rate video transmission and high-quality audio processing, enabling it to be used as a remote gaming device, reducing the processing burden on the host's CPU and graphics card, and improving game smoothness.

[0034] In the above description of specific embodiments of the present invention, features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0035] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, element, step, or component, but does not exclude the presence or addition of one or more other features, elements, steps, or components.

[0036] Although the present invention has been disclosed above through the description of specific embodiments, it should be understood that all the embodiments and examples described above are exemplary and not restrictive. Those skilled in the art can design various modifications, improvements, or equivalents to the present invention within the spirit and scope of the appended claims. These modifications, improvements, or equivalents should also be considered to be included within the protection scope of the present invention.

Claims

1. A remote control device, characterized by: It includes an HDMI input interface, a video conversion chip, a first MIPI interface, a second MIPI interface, an HDMI output interface, a main control chip, an audio output interface, and a video output interface. The output of the HDMI input interface is connected to the input of the video conversion chip, and the output of the video conversion chip is connected to the inputs of the first MIPI interface, the second MIPI interface, and the HDMI output interface. The outputs of the first and second MIPI interfaces are connected to the input of the main control chip, and the output of the main control chip is connected to the inputs of the audio output interface and the video output interface. The main control chip is implemented using a Junzheng T40N RISC-VIPCamera main control chip, and the video conversion chip is implemented using a Rockchip RK628D front-end video input conversion chip.

2. The remote control device of claim 1, wherein: The remote control device also includes an Ethernet interface that connects to the main control chip.

3. The remote control device of claim 1, wherein: The remote control device also includes a standard USB host interface and a USB 2.0 OTG interface that connect to the main control chip.

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