Mobile visual education equipment and visual education system

Abstract

The utility model relates to mobile visual education equipment, which comprises a case, a rack, a display screen and an input device, the rack comprises a movable chassis, a vertical frame, a transverse frame and a bearing table, and the vertical frame is configured to be a rotary telescopic frame; the display screen is fixedly arranged on the vertical frame, and the input device is fixedly arranged at the tail end of the vertical frame; a control box is fixedly arranged in the case, a wireless network module is arranged in the control box, and a wireless network antenna is arranged on the control box; the mobile visual education equipment further comprises a rechargeable power supply for simultaneously supplying power to each electric component of the mobile visual education equipment. And the visual education system comprises a plurality of mobile visual education devices and an Internet of Things router. According to the scheme, the recyclable charging power supply is provided for providing power supply, the controller is provided with wireless emission for providing a non-network-cable network, the mobile visual teaching equipment can be controlled and operated by adopting a technology based on Internet of Things communication, and flexible use in teaching practice is greatly facilitated.

Description

Technical Field

[0001] The utility model relates to the field of Internet of Things devices, in particular to a mobile video teaching device and a video teaching system. Background Art

[0002] Traditional teaching and practical training methods rely primarily on textbooks and presentations. Teachers explain theoretical knowledge, and students learn through observation and manipulation of physical objects. This approach suffers from a single teaching method, difficulty in standardizing operations, and uncertain educational outcomes. To address these issues, existing technologies have proposed several solutions, such as electronic whiteboards, projectors, physical display stands, and recording and playback systems. However, these solutions still have limitations, such as difficult deployment, complex operation, and limited functionality, failing to meet the personalized, diverse, and interactive demands of modern teaching.

[0003] With the rapid development of modern science and technology, remote visual teaching equipment can solve the aforementioned problems. In view of this, this solution proposes a mobile visual teaching device based on IoT control. This device addresses the pain points of insufficient equipment, non-standard operation, and poor learning outcomes during experimental training. With the goal of visual demonstration teaching, it integrates conventional teaching into demonstration teaching. Through a process of explanation, demonstration, drill, and reflection, this dual-track visual teaching combines theoretical knowledge with practical training to solve the problems of being unable to learn and those of learning but not being able to operate.

[0004] In the existing technology, some companies provide mobile visual teaching equipment, such as a trolley-type visual teaching equipment, but all of them require a host computer similar to a computer to communicate with a remote server through a network cable. Since the network cable and power cord have a great impact on the trolley, such as the location of the network port, it is extremely inconvenient to move. Therefore, it is difficult to promote it in schools with different hardware conditions, and it has great limitations. Utility Model Content

[0005] The utility model proposes a mobile visual teaching device, including a chassis, a frame, a display screen and an input device; the frame includes a movable chassis, a vertical frame, a horizontal frame and a supporting platform, and the vertical frame is configured as a rotating telescopic frame; the display screen is fixed to the vertical frame, and the input device is fixed to the end of the vertical frame; a control box is fixed in the chassis, and a wireless network module is provided in the control box, and a wireless network antenna is provided on the control box; and a rechargeable power supply is also included to simultaneously power various electrical components of the mobile visual teaching device.

[0006] Furthermore, the input device includes a camera and a microphone.

[0007] Furthermore, the mainboard of the control box is a PC mainboard.

[0008] Furthermore, the control box runs the PiKVM system.

[0009] Furthermore, the control box is provided with an RJ45 wired network port and an HDMI port.

[0010] The present invention also proposes a visual teaching system, comprising a plurality of the aforementioned mobile visual teaching devices and an Internet of Things router, wherein the plurality of mobile visual teaching devices communicate by receiving or sending instructions via a wireless network module, and the Internet of Things router is centrally connected to the visual teaching system.

[0011] Furthermore, the visual education system hub includes a comprehensive display screen for displaying information of all mobile visual education devices.

[0012] Furthermore, the mobile visual teaching device is provided with a switch device arranged in a power supply circuit, and the Internet of Things router is connected to the switch device based on communication.

[0013] Furthermore, the visual teaching system runs on a KVM encoding board.

[0014] Furthermore, the video teaching system obtains the IP address of each mobile video teaching device through the KVM encoding board.

[0015] Compared with the prior art, the beneficial effects of the present invention are: by providing a recyclable rechargeable power supply to provide power supply, and the controller is equipped with a wireless transmitter to provide a non-network cable network, the mobile video teaching equipment can be controlled and operated using technology based on Internet of Things communication, which greatly facilitates flexible use in teaching practice. Moreover, instead of using a traditional computer, a new low-power control box is used to eliminate the interference of physical lines. The equipment can be remotely controlled regardless of the hardware conditions of the site of use, and can be widely used in different geographical locations (including remote mountainous areas) and different places. In a video teaching system composed of multiple devices, the real-time information provided by numerous geographically dispersed terminals or user devices can be aggregated to a digital command center for coordinated scheduling, research and analysis, and other unified processing and centralized presentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a mobile visual teaching device;

[0017] Figure 2 Schematic diagram of the structure of the control box;

[0018] Figure 3 This is a schematic diagram of the internal functions of the control box;

[0019] Figure 4 This is a schematic diagram of the visual teaching system. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] Reference Figure 1 This is a schematic diagram of the structure of a mobile video education device, comprising a chassis 101, a frame 102, a display screen 103, and an input device 104, which includes a camera and a microphone. The frame 102 comprises a movable chassis 1020, a vertical frame 1021, a horizontal frame 1022, and a support platform 1023. The vertical frame 1021 is configured as a rotating and telescopic frame. The display screen 103 is fixed to the vertical frame 1021, and the input device 104 is fixed to the end of the vertical frame 1021 and can be moved and adjusted accordingly.

[0023] The mobile chassis 1020 features a four-wheel integrated design with a chassis body, and the matching casters are silent wheels with foot brakes. The display 103 comes standard with a 21-inch LCD screen, which has low power consumption and is energy-saving and environmentally friendly.

[0024] The vertical frame 1021 is made of widened and thickened aluminum alloy profiles, which can carry higher-quality items. There are T-slots on the front and back sides for the installation of peripheral equipment, and the surface coating is scratch-resistant.

[0025] The horizontal frame 1022 configured on the top is a pan / tilt head, which can be moved up and down and adjusted. The arm can rotate 360 ​​degrees horizontally through the shaft. The double sections shown in the figure can be adjusted in multiple directions and 60 degrees vertically. The movable joints are equipped with damping devices, and with the pneumatic movable arms, they support pulling and hovering at any angle and can be easily operated with one hand. It supports the internal threading of multiple wiring harnesses, and the vehicle has a hidden wiring design, which is clean and tidy as a whole. Due to the profile design, it supports the installation of various cameras. After testing, it can carry 80kg of mobile walking and meet the 15-degree tilt test. The height of the vehicle is 1.8 meters, and the unfolded size of the horizontal arm is 1.2 meters. The arm can rotate 360 ​​degrees horizontally and can be adjusted 60 degrees vertically.

[0026] The platform 1023 uses a metal tabletop to place items such as a mouse and keyboard. It is also adjustable in height. The ergonomic handle allows for easy one-handed movement.

[0027] The 101 chassis features a front-opening design for convenient product placement and debugging. It also features a removable, double-layered partition. It also features a multi-functional interface with a power switch, battery level indicator, and pre-reserved HDMI, network, and USB expansion ports.

[0028] One or more rechargeable power supplies are built into chassis 101. These can be standard commercially available products, such as the Dianxiaoer brand 2042Wh power bank, which can be charged at any time. The electronic devices in this system all draw relatively low power, such as a 30W screen, an 8W camera, and less than 1W for the microphone and mouse. The customized microcomputer (control box) employed in this solution also draws approximately 10W, so the entire system consumes no more than 100W. Using the aforementioned power bank, the system can operate continuously for up to 20 hours, sufficient for a full day of teaching at a classroom.

[0029] A control box is fixed in the chassis 101. Figure 2 This is a schematic diagram of the control box's structure. It's secured to the chassis 101 via mounting slots 1011 on the outer shell. The outer shell also features multiple heat dissipation holes 1012 to dissipate heat from the internal motherboard. On one side of the control box are an RJ45 wired network port 1014, a wireless antenna port 1013, a power port 1016, an HDMI port 1015, and a status indicator light. The control box also houses a wireless network module, and the wireless antenna plugs into the wireless antenna port 1013 to transmit wireless signals.

[0030] Reference Figure 3 Internal components are installed inside the control box. Its mainboard is a PC motherboard, running the PiKVM system. Its low power consumption makes it more energy-efficient and environmentally friendly than traditional computers. External electronic devices are connected to the device, such as a keyboard, mouse, and headphones. A rechargeable power supply continuously powers these components.

[0031] The device of this embodiment has close-up and panoramic camera functions, which can project the structural details of the experimental platform engine and the instructor's operation demonstration details on the display, so that students can learn and master the structural characteristics and practical operation skills more intuitively.

[0032] Example 2

[0033] Reference Figure 4 The visual teaching system includes three layers, namely the controlled device group layer (N mobile visual teaching devices described in Example 1), the network transmission layer, and the administrator computer group layer, wherein the network transmission layer includes a wide area network and a KVM encoding board.

[0034] N mobile visual teaching devices realize the Internet of Things through the Internet of Things router. The mobile visual teaching devices receive or send instructions through their own wireless network modules to achieve communication. The Internet of Things router is connected to the visual teaching system hub through the network transmission layer.

[0035] The administrator computer group layer includes a comprehensive display screen for displaying information of all mobile visual teaching devices and computers for each administrator to operate. The system corresponding to the operation of mobile visual teaching devices is the PiKVM system. The visual teaching system runs on the KVM encoding board. Different from the traditional high physical component requirements, the use of a virtual system is conducive to reducing the physical cost of the background system. It can also obtain the IP address and required information of each mobile visual teaching device. The KVM encoding board can perform real-time intelligent analysis of the display screen content of the controlled device group layer and feed back the analysis results to the Internet through the network. Each KVM encoding board can manage multiple controlled mobile visual teaching devices at the same time. The administrator PC-side KVM decoder is an application installed on the administrator's computer. It is developed based on the Windows platform API provided by HiSilicon Semiconductor. The application provides the following functions:

[0036] First, it provides access rights and operation log management functions; second, it obtains the KVM encoding board encoding stream from the Internet, decodes and plays it on the administrator's computer; finally, it polls the administrator's computer USB device, and encapsulates the USB device descriptor and USB payload data according to a specific network protocol and uploads it to the Internet.

[0037] The embedded KVM encoder board has a fixed initial IP address, which can be modified during use through the PC KVM decoder application. Assigning different IP addresses to KVM encoder boards on the same network segment allows for free link access between multiple administrator computers and multiple embedded KVM encoder boards, thus enabling matrix switching management of administrator computers and remotely controlled mobile video equipment.

[0038] Embedded KVM encoder board technology is already widely documented and will not be further elaborated on here. It can be ported to this system. The embedded KVM encoder board receives audio and video signals from the host computer of the controlled computer cluster via a DVI cable, compresses and encodes them, then encapsulates the encoded audio and video data using a specific network protocol and uploads it to the internet via a network cable. Simultaneously, the KVM encoder board retrieves USB-related data from the internet, parses it into USB device descriptors and USB payload data, and then creates a virtualized USB device. The KVM encoder board's USB cable is connected to the mobile video device, redirecting the administrator's USB device to the remote controlled computer.

[0039] To illustrate a remote control solution, a mobile video education device is equipped with a switch device in its power supply circuit. An IoT router is connected to the switch device via a communication link. When an administrator user issues a power on / off command, the IoT router forwards the command to the switch device. The switch device then switches the controlled device's power supply circuit on or off, turning it on or off, based on the command. This allows for remote shutdown of the device when it's unattended for extended periods, or forced shutdown at night when unattended.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile visual teaching device, comprising a chassis (101), a frame (102), a display screen (103) and an input device (104); the frame (102) comprises a movable chassis (1020), a vertical frame (1021), a horizontal frame (1022) and a bearing platform (1023), wherein the vertical frame (1021) is configured as a rotating telescopic frame; the display screen (103) is fixed to the vertical frame (1021), and the input device (104) is fixed to the end of the vertical frame (1021); It is characterized by: A control box is fixedly arranged in the chassis (101), wherein a wireless network module is arranged in the control box, and a wireless network antenna is arranged on the control box; and a rechargeable power supply is also included for simultaneously supplying power to various electrical components of the mobile visual teaching device.

2. The mobile visual teaching device according to claim 1, characterized in that The input device (104) includes a camera and a microphone.

3. The mobile visual teaching device according to claim 1, characterized in that The mainboard of the control box is a PC mainboard.

4. The mobile visual teaching device according to claim 1, characterized in that The control box runs the PiKVM system.

5. The mobile visual teaching device according to claim 1, characterized in that: The control box is provided with an RJ45 wired network port (1014) and an HDMI port (1015).

6. A visual teaching system, characterized in that: It comprises a plurality of mobile visual teaching devices as described in any one of claims 1 to 5, and an Internet of Things router, wherein the plurality of mobile visual teaching devices communicate by receiving or sending instructions through a wireless network module, and the Internet of Things router is centrally connected to the visual teaching system.

7. The visual teaching system according to claim 6, characterized in that The visual education system hub includes a comprehensive display screen for displaying information from all mobile visual education devices.

8. The visual teaching system according to claim 6, wherein: The mobile video teaching device is provided with a switch device arranged in a power supply circuit, and the Internet of Things router is connected to the switch device based on communication.

9. The visual teaching system according to claim 6, wherein: The video teaching system runs on the KVM encoding board.

10. The visual teaching system according to claim 9, characterized in that: The KVM encoding board obtains the IP address of each mobile video teaching device.

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