Interactive Classroom – With BJ80 intelligent collaboration terminal as the core, effectively integrating multimedia conference rooms or smart classroom interactive scene systems
Suzhou Bijie Network Co., Ltd., as a leading provider of multi screen assistance solutions, has been focusing on technological innovation, product innovation, and application innovation in the field of smart teaching applications. It has launched a group discussion smart classroom product solution, providing multiple learning islands, and each learning island can be controlled and freely discussed in an interactive classroom. The classroom should provide high-definition recording of the entire scene, multi group multi screen interaction, multi device access (mobile phones, tablets, laptops, etc.), group recording, and other support systems to support group discussions and sharing on one or more topics.
As the core product of the Bijie group discussion smart classroom solution, BJ80 undertakes the central control and interactive management functions of the entire system. Today, we will conduct an in-depth evaluation of this latest product.
1. Appearance is the primary productive force
As a flagship product, the BJ80 body adopts aluminum alloy CNC technology, with a 180 * 138 * 43mm rectangular integrated molding, deep blue glass with frosted material and rounded corner design. The simple business style appearance is very pleasing and can be easily matched with various types of conference rooms.
The BJ80 is equipped with a flagship processing chip RK3399 from Ruixin Microelectronics. The CPU adopts a dual core Cortex-A72 large core and quad core Cortex-A53 small core structure, supporting 4K @ 60fps 10 bit video playback and output capabilities, providing faster computing speed and better visual effects for terminals.
BJ80 provides 2 HDMI output interfaces and dual display support; And it is equipped with an 802.11AX (WiFi6) wireless module, providing higher wireless transmission efficiency and access capability.
2. Functional evaluation
Dual screen display
BJ80 supports two display modes: dual screen same display and dual screen different display.
- In the same display mode, the screens of multiple projection devices will be randomly assigned to the main/auxiliary screens for display. You can freely drag and drop a projection screen from one of the two screens to another large screen for display. When the touch icon enlarges any target screen, the two screens will synchronously display the projection screen in full screen. After use, the touch icon can shrink or remove the projection screen.
- In the abnormal display mode, two large screens will display different projection screens. After clicking the switch button, the projection screens displayed on the two large screens can be switched to each other; In addition, when using the dual screen abnormal display function, the dual screen supports one screen projection content display and one screen electronic whiteboard writing. It is worth noting that in the abnormal display mode, only when one channel is projected, the main and auxiliary screens display the same picture.
Wireless screen transmission
The BJ80 multi screen collaborative intelligent terminal is an enterprise level multimedia collaboration system display device that provides the best BYOD wireless screen transfer in the industry. It is compatible with wireless screen casting standard protocols such as Airplay, Miracast, WiDi, DLNA, Googlecast, etc. (wireless screen casting can be done without installing any software on mobile phones and computers), and also provides the BJCast wireless screen transfer protocol (Bijie private screen transfer protocol, mobile phones/computers need to install client programs). It can support up to 6 channels of same screen display.
BJ80 supports AP hotspot function and can provide local hotspot coverage. The addition of WiFi6 modules makes multimedia collaboration systems more efficient and convenient.
Screen mirroring and reverse control
BJ80 can provide screen mirroring and reverse control functions for Android and Windows devices. IOS and Mac OS devices currently do not support screen mirroring.
- Android device screen mirroring and reverse control
Android device screen mirroring is only effective in Miracast screen mirroring mode, and Android terminals need to support UIBC function (currently supported by Huawei, Samsung, and some high-end Xiaomi phones).
- Windows device screen mirroring and reverse control
Windows device screen mirroring can be supported in both WiDi direct mirroring and PC client screen mirroring modes. After the screen mirroring content is displayed, clicking on the large screen display area will pop up a function button to enable the mirroring function.
Win10 computer WiDi reverse control requires enabling ‘Allow mouse, keyboard, touch, and pen input from this device’.
Windows computer client screen mirroring and reverse control.
Screen mirroring is a very practical function used in teaching. Teachers can directly use the touch screen to reverse the operation of the screen mirroring on their mobile phone or computer during teaching, such as flipping through PPT pages, fast forward and rewind, and so on.
Multi machine linkage
The multi machine linkage function is mainly used for group discussion classrooms. This function mainly realizes the interaction between the classroom main screen and the group screen through the multi machine linkage function. The multi machine linkage function can broadcast the teacher’s main screen image to the group screen for simultaneous display with one click, or drag and drop the group screen image to the classroom main screen for display or distribution, making it convenient for the teaching teacher to share, review, and compare courseware.
(1) Main device broadcast:
① Click the “Broadcast” button to synchronously broadcast the screen projection content of the main device to all group screens. During the broadcast process, the screen images of the group screens and the main device remain synchronized and displayed.
② Click ‘Close Broadcast’ to disable the broadcast function.
(2) From device display:
① Click on Group Screen A in any “Group Signal Source” and drag its content to the “Main Device” large screen for display.
② When the screen of Group A is in the display state of the “main device” large screen, click the “broadcast” button of the “main device” to broadcast the screen of Group A to the large screens of Group B, Group C, and other groups.
Interactive touch control
BJ80 multi screen collaborative intelligent terminal provides various interactive operation solutions for different smart classroom display environments, whether it is a non OPS touch all-in-one machine, OPS touch all-in-one machine, or ordinary TV/projector, it can provide adaptive linkage solutions.
- Supporting non OPS touch all-in-one machine
The Bijie multi screen collaborative terminal has a sidebar control function. Clicking on the function buttons in the red area on the large screen allows for interactive operations and configuration changes on the multi screen collaborative terminal.
- Supporting OPS touch all-in-one machine
OPS all-in-one machines generally use the Windows system as the main system. During the teaching process, the frequency of using Windows teaching software in the classroom is very high. The video output of the Bijie Multimedia Collaboration System is an independent signal source, and the OPS all-in-one machine needs to be switched to HDMI display mode, which brings the problem of teachers needing to frequently switch signal sources. In response to this issue, Bijie Internet specifically provides Windows based control interaction software and control API interfaces.
Install interactive management software on the Windows side, using a floating window form, providing one click broadcasting, same screen content display, and screen projection device configuration functions;
The Bijie multimedia collaboration system and OPS touch all-in-one machine only require one data cable connection.
- Supporting independent central control device (Android/Windows)
For application environments that use independent intelligent central control, Bijie can provide multi screen interactive control apps or API interfaces, which can control the signal switching, screen broadcasting and other interactive operation functions of Bijie multi screen collaborative intelligent terminals through the app end.
Third party companies can integrate and adapt functions based on the Bijie Interactive Control API interface, which is currently compatible with Android and Windows platforms.
Electronic whiteboard and annotations
The Bijie Multimedia Collaboration System has built-in electronic whiteboards and annotation functions, providing flexible writing and implementation of annotations. Considering the demand for various paper and pen applications such as complex formulas and graphics in the actual teaching process, the electronic whiteboard annotation function can ensure efficient collaboration and spontaneous expression of ideas and inspirations between teachers and students during cooperative learning, collaborative exploration, and interactive teaching. Support multiple groups to discuss simultaneously, and multiple parallel discussion groups can share presentations and circle annotations internally; Support collaborative highlighting, teachers can annotate the demonstration content with different colored brushes to distinguish them. The intelligent writing function and multi screen interaction in the solution complement each other, allowing teachers, students, and groups to display their personal and group display content in a multi window manner at any time, annotate and analyze the display content, and broadcast and share, effectively enriching the interaction methods of group teaching and collaborative learning.
BJ80 supports reverse control of projected Windows and Android devices through single click and double-click operations on the large screen. Built in electronic whiteboard, supporting smooth writing. Open the annotation function, and the content displayed on the large screen can be annotated by touch.
Information Release
The BJ80 multi screen collaborative intelligent terminal supports wallpaper and subtitle push functions, and can customize image and letter scrolling playback during teaching activities. Information dissemination is convenient, fast, and accurate, without the need for traditional information dissemination methods. It can be pushed in the form of images or text, including public announcements, exam information, schedules, and other materials.
Unified management
The BJ80 multi screen collaborative intelligent terminal supports remote unified management function. By deploying an independent management service platform, front-end devices can be centrally controlled and managed. It supports operation and maintenance personnel to remotely view device information through the network, set device configurations individually or in batches, real-time statistics on device working status, operation and maintenance data, etc., thereby achieving efficient and intelligent management of a large number of devices, greatly reducing management difficulty and costs.
From the overall testing experience, the BJ80 multi screen collaborative intelligent terminal has moved beyond the scope of screen casting products. It is more like an exploration of the smart office and smart education scene ecology by Bijie Internet, fully integrating the concept of “multi screen interaction and multi screen collaboration” into product design. With the BJ80 Bijie intelligent collaborative terminal as the core, it effectively integrates the interactive scene system of multimedia conference rooms or smart classrooms, shapes a new form of professional and efficient office, and explores new ways to implement intelligent office and smart classroom networking, digitization, intelligence, and personalization.