Multimedia Digital Classroom with Video Auto-Record Systems By Jane Won Education Equipment Development Limited, China

Description

Solution of Multimedia Digital Classroom (Auto-Record System)

Combined Push-Pull Sliding Green Boards

Close status; Open status;

Specifications: Outer size ***0****0mm, adjustable as per the size of the chosen equipment, combined by 4 pcs of sliding boards. The upper and bottom tracks use the latest design of open type double-wheels and double-tracks, when the middle sliding boards are in the closed position, they will be on the same surface as the fixed boards. Adjacent frames use the design of narrow frame and same color, when the boards are in closed position, they look like a whole flat board, it is good for teachers smooth writing and students comfortable watching.

Technical parameters:
1. Panel requirement:
1) High quality original panel, entire board without joint, dark green, with protective film, good for teacher writing in order, comfortable view and eyes tiredless.
2) Thickness: ≥0.*0 mm.

2. Interlayer: Use extruded polystyrene board, neither too hard nor too soft, thickness ≥*4mm, flat and environment protection, elastic, non deformation, whole without joint, Methanol release mg/lâ‰¦1.5.

3. Reverse side: whole anti-rust galvanized plate, thickness≥0.*0mm; special two-component AB adhesives, high-pressure formation in full automatic production, strong adhesive, corrosion resistance, stroke resistance, waterproof, durable, flat, never apart, all indexes conform the international environmental protection requirement.

4. Outer frame: High precision sanded silvery white aluminum alloy profile, streamlined design, no obvious string light. Individual chalk holder, novel and nice shape.

5. Sliding system:
1) Pulley: main pulley block with super quality bearing steel PU soft plastic pulley, runs without noise, the main pulley block with automatic cleaning function, clean the dust while running, make sure smooth run.

6. Installation requirement: stealth mounted, safe and reliable. **5**2mm, wall thickness 3mm.
Side frame: high precision sanded silver white aluminum alloy, outer diameter **2**5mm, wall thickness 1.3mm
Blackboard frame: high precision sanded silver white + invisible dark green aluminum allay, outer diameter *5**1mm, wall thickness 1.0mm;
Blackboard connection: high precision sanded silver white aluminum alloy, outer diameter *7**0, wall thickness 4mm.

1.2 Fixed blackboard at the back of classroom

â˜…The frame uses 1.0mm thickness of luxury electrophoresis aluminum, Green board is dark green metal lacquered writing board, board thickness 0.*7mm, hardness 8H, easy wiping, good magnetic absorption, opaque, protect students eyes.The middle layer with multilayer corrugated paper, good elasticity, comfortable writing; the back board with 0.*1mm thick high quality galvanized plate to prevent the black board from out of shape; Strong adhesive, the plate will not come unglued, no bubbles.
â˜…The size of side frame: *0×*8 (face size), electrophoresis aluminum, beautiful looking, the hardness of aluminum *4HRC.
â˜…Overall size ***0 height x ***0 length (the size can be custom-made as per the classroom size). The total design is reasonable, durable, elastic, and comfortable in writing.

1.3 LCD Interactive Electronic Touch Machine G*0

1. Technology Requirement of Hardware:

Display Size: ≥*5 inches LED LCD screen.
Writing Technology: Infrared induction technology, min. **-points touch. No need of special pen, writing by fingers or any other opaque object directly on the surface.
â˜…Support HID drive-free technology: Under Windows system, completely compatible to Windows multipoint protocol, point while touch, no interferes on each other.
â˜…Detachable touch screen: The touch frame with detachable button design, disassemble from front, no need to dissemble any screws or protection angles during maintenance.
Response speed: 1st point≤8ms,continious writing≤3ms,positioning accuracy≤1mm
Display scale: *6:9
Resolution: ***0x***0 (full HD)
Brightness: ≥**0
Contrast: ***0:1
Visual angle:≥**8°
Sound output power:2**5W
Video formats:PAL/SECAM
Front interface: *-path USB (of whichPC USB*4, USB touch*1ã€TV USB*1)ï¼ŒVGA input*1ï¼ŒAUDIO input*1ï¼ŒMIC input*1ï¼ŒHDMI input*1.
Input port: *-path AV(VIDEO+R+L), *-path RF, 2 HDMI, *-path VGA/audio
Output port: *-path AV/audioï¼Œ *-path TV stereo audio outputï¼Œ *-path USB power supplyï¼šAC******0V *0/*0 Hz
Peripheral interface: 4 USB 2.0 port, 1 audio line input, 1 audio line output, 1 net interface, HDMI output
Power supply requirementAC**0V±*5% *0/*0HZ ultra-low power consumption: *0 W.
PC configuration requirement

With modularization design of computer, when the computer has malfunctions, the computer can be maintenance by plug type. To guarantee the compatibility, the computer module adopts to standard OPS-C structure, connection through standard **-core OPS port with other devices. Port:*-path USB2.0ã€*-path USB 3.0ã€*-path RJ*5 network port, *-path HDMI, *-path LINE output, *-path MIC input, support wifi.
â˜…Machine appearance: Aluminum alloy front housing, circular arc safe plastic corner, light and thin design, thickness of the whole machine *9.7mm, thickness of computer position *7.7mm (thickest)
â˜…Touch structure: touch screen PCBA part can be maintained by disassemble the infrared filter directly, no need to disassemble the front frame and corner or any other accessories.
Display module: adopt *5 inch LED LCD display, brightness≥**0cd/m2, highest resolution ***0(horizontal)x***0(vertical)
â˜…USB key at the front, dion cover key, dust proof and sweat proof design
â˜…Touch part parameter: infrared sensitive technique, fingers, pens or any other opaque objects can be used sensitively, response time required the 1st point (hit): less than 8ms, continuous (writing): less than 3ms, cursor speed no less than **0 points/s, screen protection by 4mm tempered glass.
â˜…Multi-point touch function: **-points touch function (min. *0 points) for different operation system and WIN7, It is fully compatible with WIN7 multi-point operation protocol, and can recognize multiple people writing at the same time and many natural gestures.
â˜…Multi-point touch module: Single point mode and multi-point mode switch function can be provided for different application requirements under different operating systems and WIN7 operating systems.
â˜…Remote maintenance: Touch screen with built-in detection tools, convenience in self finding problems of touching, after sales engineer can provide the best after sales service and support remote detection and update service on touch screen.

Qualification: 3C certification, ISO***1, ISO***1, CE, ROSE inspection report.

1.4 Multimedia Steel Lectern JTS*3

1. Dimension: Length/Width/Height,**0mm***0mm***0mm
2. Material: ABS engineering plastics + wood armrest + superior cold-roll steel plate + plastic injection insulation base, thickness of engineering plastic ≥4.0mm, steel part thickness ≥1.0mm.
3. Process technology: injection molding + sheet metal processing. Sheet metal surface is cheated by unoil, rust removal, parkerising, pickling, spraying plastics, robust and durable, with features of ant-corrosion, anti theft, water proof, wear-resisting.

Design features:
1) Green and environment protection
2) Humanization design: size of upper part**0mm***0mm***0mm; size of lower part **0mm***0mm***0mm,size of drawer of display stand **0mm***5mm. The design of total lectern is people first, marginal arc, exquisite workmanship. Console cover with the design of sliding cover left/right, not use slides to reduce failure. Upper stand is with snap joint and without screws, elegant looking. The R*0 circular arc design of the lectern reduces the possibility of harm to teachers and students, the tilting shrinkage design is more safe and elegant; the desk top function area with reasonable layout and exquisite design, easy to use by teachers; Open at both sides of front and back, easy to install and maintain.
3) Ergonomics: arm rest on left and right sides mounted with high grade wood grain width 4.2cm, suitable for use.
4) Widely use: in multimedia classrooms, lecture theatres, network and computer rooms, conference rooms, studios, various types of training rooms, lecture halls in colleges, universities and schools, etc.

Platform and blackboard are the same brand for later maintenance.

The following information are provided:

The letter of authorization of the products manufacturer and the original after-sales service commitment.
The manufacturer has ISO***1 quality management system certification, ISO****1 environmental management system certification, and GB/ t*********1 occupational health and safety management system certification.
It has the ***5 physical test certificate of the digital campus integrated solution delivered by the Central Audio-visual Education Center.
Certificate of environmental mark (II) type product certification.

1.5 Single up/down desk and chair

Panel material:Melamine environmental protection plate,
Steel material: Q**5 steel tube
Plastic part material: Engineering polypropylene
Desktop size: **0mm, desktop width **0mm, thickness of desktop plate *8mm.
Max height from ground: **0mm, min height from ground: **0mm
Adjustable height: ******0mm
Desk bucket depth: **0mm
Front panel: Thickness 0.8mm, material Q**5 steel plate.
Desk tube size: inner tube *0mmx*0mm/steel thickness 1.5mm, material Q**5 steel tube; Outer tube *0x*0mm/steel tube wall thickness 1.5mm, material Q**5 steel tube.
Desk leg bottom size: **0x*0mm/steel thickness 1.5mm, material Q**5 steel plate.
Adjustment of chair: ******0mm.
Outer tube size *0x*0mm, inner tube *5x*0mm
Color: customized.

1.6 Integrated Video Recording and Playing Machine

â˜…Highly integrated multifunctional wireless microphone, multimedia computer, object visualizer, stereo amplifier, intellectual console, sound box and tracking.
Support unified management in cloud video management platform.
â˜…Support the console recording from beginning to end.
Recording main board: (coordinate with special console equipment), hardware framework.â˜…Industrial grade insert typeARM+DSP framework, integrated plate card, no inserted card on the plate, no outer port (not industrial control plate + gathering card framework)
Operation system:â˜…Insert type Linux operation system.
â˜…Wall-mounted type integrated machine, direct current supply, power *0W, light and environment protection.
Video input:â˜…*-path sdi HD video + *-path VGA input, perfect supporting classrooms with 3 camera position.
Video output; HDMI+VGA.
Audio input:â˜…Double channel linear input + MIC input double audio input DSP hardware intellectual sound mixing.
Audio output: *-path Double channel linear output.
Other port: *-path RS**2 serial port, *-path USB 2.0 port, *-path RJ*5 Gigabit network interface.
â˜…B/S, C/S two architecture interaction, both local and remote can operate simultaneously.
â˜…Web pages are all flash architecture, no need to install any ActiveX plug-in. It is safe and convenient.
â˜…Insert type system and functional software are stored in the on-board flash memory, takeout and damage of the hardware do not affect the system function.
Insert type system and functional software cant be visited, modified, deleted or added by anyone or any program, thus avoid any system damage by maloperation nor any risk by internet virus infection.
Support recording of single picture mode/curriculum resource mode; support big rate/small rate live program; support switch on automatic/semi automatic/manual program directing.
*-path video live preview.
â˜…Support recording file on - demand playback, resource mode automatic three-screen preview, full display of index information.
â˜…Recording resources can be uploaded to resource platform, manual download, copy to movable storage devices
â˜…HDMI High definition anchor audio and video loop out, perfect connection to video conference system.
â˜…Support PTZ control, track by click of mouse, pulley control position.
Support pictures in picture, logo. Subtitle adding.
Video format: H.**4 high profile video coding. AAC audio coding, mp4 file format; local 2TB professional monitoring hard disk
â˜…Support timing recording. Upload to resource platform regularly.
â˜…A powerful Intel dual-core processor is built in, the main frequency is abov 3.0G. or Core i5 processor is optional. Memory 4G. **0g SATA hard disk (optional *2G SSD)/graphics card/integrated gigabit card, sound card.
â˜…Built-in multi-function wireless microphone can speak by a hand type or head type microphone, automatically select different frequency points, meet the need of **0 classrooms in use without interference. multifunction wireless microphone with laser pen, PPT up/down page function key and the signal switch control key of PC and display can remote control the up/down page in running PPT, or remote control the signal control switch of PC and display.
â˜…Built-in 2**0W stereo digital amplifier, with DSP digital chips, BLP digital feedback repeating techniques, intellectual testing and sampling, automatically test and adjust the volume gain, automatically source noise frequency point and Complete the sound suppression feedback. With power output and frequency output port.
â˜…Built-in alarm system against theft, the system will alert you if someone switches off the projector.
â˜…Built-in time delay power function, when press the power key, the equipment can be closed, dont need to wait the bulb cooling down, the system will delay *0 minutes for outage.

Built-in object display stand: shot size: A4(**0mm***7mm)/scanning speed: 1s/resolution ratio: 5 mil/image color: *4 bit/picture format: JPEG,TIF,PNG,GIF,BMP/video format: AVI format/port: USB2.0, no need external power/light source: natural light + LED lamp(usage time ***0 hours)/picture control: adjustment of brightness, sensitometry, acutance, color and gain control, character recognition: OCR recognition function/can write or postil on the presentation notes on the projection screen or electronic whiteboard.

There are audio input for laptop and VGA input, equipment side with audio and amplifier output port. With VGA input and projector VGA input, RJ*5 network port, USB port and power input/output socket.

â˜…For equipment maintenance, no need to disassemble the equipment, only need to open the front panel and replace the accessories in the equipment. Configure wireless keyboard and mouse.

â˜…The product passed the certification of ISO***1 ISO****1, CCC, CE, FCC, ROSH. Benefits: high integration, save space, convenient for transport and installation.

1.7 Insert Type Video Recording Playing System

1) Insert Type Framework
The Integrated Recording Machine adopts insert type framework, it is light and slim, portable, save space; with Linux system, to avoid the problem of Windows vulnerable to computer viruses, the system is more safe and stable; low energy consumption, fast cooling, avoid the problem of unnecessary damage of the parts due to high temperature, make it stable running; insert type adapts to various environment, e.g. dust, humidity, outdoors, reduce equipment failure rate, increase equipment life time, save cost of manual maintenance.
2) *-path concurrent video processing
The HD video recording system adopts HD shot technology in whole process, can conduct the *-path concurrent signal ***0P*0f/*0f, guarantee high quality of collected input signals. Furthermore, to make sure the effect of live recording, according to the environmental situation of recording, can support mixed input of SDI video signal, far-end video signal, HDMI HD video signal, make sure of the best effect of video recording.

3) Remote B/S broadcasting instruction and local broadcasting instruction
The recording system support 2 modes of broadcasting instructions - remote B/S broadcasting instruction and local broadcasting instruction, the remote B/S broadcasting instruction can let users to use the function of professional broadcasting instruction from remote which is accessible by network, without plug-in requirement, it is easy to use. The system supports the mode of local broadcasting instruction, you only need a mouse and display screen to get local broadcasting instruction, no delay, high fluency. Both broadcasting modes supports the operation of *-path video preview, Single and multi-stream live output, video switch, audio adjustment, recording mode, special effect, movie head and end, caption, logo, camera control, it is easy to use and flexible.

4) Various Recording Modes
Support single and multi stream recording modes, single stream mode supports the models of single-picture and multi-pictures, and switches in various display modes. Multi-stream recording mode support *-pat movie video and *-path video ***0P/*0ffps individual decoding, and save as independent *-path video, the video has no picture covered on each other, thus save complete materials for future editing.

5) Multi-point Interactive Education
The Integrated Recording and Broadcasting Machine has the function of remote education, the built-in *-point MCU multi-point interactive function, can open the function of *-point interactive education simultaneously; function of video conference end, support SIP protocol, can directly interconnect to multi-point interactive platform MCS and conference TV end, apply to simultaneous class education in big scale in the district or city.

6) Easy operation, One-key Conduct
Teacher can use the key on the control panel, operate by one-key, start and stop video recording. Also can set up automatic or manual recording on the network web page. If automatic recording, only need to press start. Press stop after class, the video of the whole class is finished. All other operation systems run automatically, simple and easy, very convenient.

1.8 Integrated Image Tracking Machine

Single board card embedded architecture, integrate teacher tracking, students positioning, writing positioning, broadcasting switch, the system releases intellectual analysis on the various scenes of teacher area, student area and writing area, etc., and control the camera equipment to make video in fully automatic intelligent personification, the teacher and students dont need to wear any tracking devices, there are no manual interference during the whole process of recording.
1) Video input port: SDI*4.
2) Video output port: DP*1HDMI*1
3) Cloud platform control port: RS***2*4 reuse cloud platform control port (PTZ), can set up the cloud platform control code.
4) Communication port: console*1
5) Network port: Gigabit network interface
6) USB: port*4
7) Audio port: LINEIN*1

1.9 Image Tracking System

1) Teacher Image Behavior Analysis
When the system detects the teacher moving much in the classroom, priorly adopts dynamic camera mode with mid-shot and full view; when the teacher sits or stays in the classroom, priorly adopts static mode, with mid-shot and close shot. In the situation of multimedia classroom, interactive teaching machine is necessary, so before adopting the image recognition technology to track the teachers behavior, we must consider the interference of these image sources, to avoid mis-recognition, the simulation of real teaching scene was fully carried out, after various simulation test on tracking scenes, in the software setting, shielding area is allowed in the setting, to avoid the interference of animations, shadows and fluttering curtain on the tracking effect.

2) Students Image Behavior Analysis
In traditional tracking, it is not allowed that someone passes the corridor of the classroom, but in actual situation of class, a passing class teacher will surely affect the normal tracking on students, thus rubbish shots will appear. Considering actual teaching scene, it is allowed to manually set the image recognition mask area during software debugging, thus set the effective tracking area according to the environment on site and avoid rubbish spots.

3) Advanced Comprehensive Anti-shake Technology
Having owned wide scene image anti-shake technology, while supporting innovative narrow scene anti-shake technology.
â‘ Wide scene image anti-shake technology: allow to neglect the teachers moving within a setting scope, keep camera fixed, guarantee the image smooth and stable, avoid the image bouncing or moving.
â‘¡Narrow scene anti-shake technology: in the narrow scene of 1.8~2.4m, under the moving speed of 0~3m/s, tracking people precisely, no shaking, no missing. In the meanwhile of tracking the teacher precisely, completely avoid the problem of shaking spots due to large body movements; it is a breakthrough in this field to solve the problem existing many years.

4) Adapts to Teachers height
Adjustment according to different teachers height, the teachers camera is on the proper position all the time, ensures reasonable composition. The tracking process is continuous, stable, smooth, the image output is stable.

5) Teachers Recognition
To complete the construction of curriculum information, the system automatically performs face recognition of the teacher, recognizes the teachers name and identification and feedback the recognized information on the basic data.

6) Tracking switching strategy customization
The image positioning system can intelligently adjust the camera strategy during the class according to the special scenic conditions and users need, fulfill the whole teaching process, maximize to reach the effect of manual shooting.

1.*0 Resource Management Platform

1. On-line Share

1) Quick classification on the resource by hot, latest, hits.
2) The resources can be navigated according to school, subject, grade, lecturer, key video, micro-course.
3) Possible setting of navigation by various classifications for display of resource.
4) Overall searching, fuzzy query or group query according to key words of school, subject, title, lecturer, etc.
5) Users can learn through various mobile terminals by login the platform whenever and wherever possible; break the limit of time and space.

2. Image Behavior Analysis
During course recording, besides obtaining the course video resource, data of S-T teaching behavior line graphs and pie graphs are created, proportion of course time of teacher and students during the class, proportion of teacher writing and PPT, it is convenient for a teacher to make reference to the above mentioned objective data and make a horizontal self-comparison, learn from excellent teachers, providing powerful resources for teaching and research later on.

3. Play on three-split screens
On the basis of playing normal single video course, the system provides *-split courseware for online learning, which consists of teacher video, students video and teaching file video. Because the *-split courseware is that the teacher video conforms to the PowerPoint presentation, the teaching effect is very close to live class.

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Multimedia Digital Classroom with Video Auto-Record Systems

Jane Won Education Equipment Development Limited

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Multimedia Digital Classroom with Video Auto-Record Systems

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