75 inch LCD interactive whiteboard & computer, handwriting recognition

1)    Display parameter: 

Screen size: diagonal, aspect ratio: 16:9

A grade imported display module

Displayed color: dual channel 10 bit, 16.77 million colors

Visual Angle: 178°

Display resolution: 1920(H) X 1080(V)

Brightness: 350cd/square meter

Contrast: 5000:1

2. Anti-impact: screen outer surface is a layer of 4mm all-tempered glass.

2) touch

1. Internal infrared multi-touch technology, 6 persons can write at the same time

2. Infrared tube pair technology, the number of emitters must be the same as of receivers. The distance between one tube and another can not be more than 2.0mm, the width of PCBA could not be over 18mm, the connection between one PCBA and another is flexible flat cable.

3. The touch equipment is connected to computer via USB with no need for any driving.

4. Anti-strong-light, water-proof, touch screen can be operated normally under direct sunlight or strong sun rays.

5. Touch resolution: equal or greater than 32767x32767

6. New generation intelligent recognition, even when blocked by large area objects (like palm, book, whiteboard eraser), or even the whole side frame is blocked, normal writing and operation is not affected.

7. Provide hardware inspection software which can quickly determine malfunction position.

8. 4 protecting corners of external frame can be removed separately to replace modules.

9. Firmware refreshing: firmware program support USB intelligent speedy upgrading for convenient remote upgrading of hardware.

10. Touch cycles: over 60 million times of touches for one position.

11. No less than 16 pcs of physical shortcut keys on both sides.

12. The connection between touch module and motherboard is socket interface.

3) TV machine design overall requirements:

1. Side frame width does not exceed 25mm except that installed with front speakers.

2. Special gas release and fast heat sink design, multi-row heat sink net structure which support dust proof at the same time.

3. The whole unit's external casing can not be plastic anywhere.

4. Front side TV buttons. The number of non-hidden physical buttons must be over 8. TV switch on/off buttons must differ than those of computer.

5. Input ports: internal 2xHDMIs, external 2xHDMIs, 2xVGAs, 1xYPbPr, 1xTV, 1xAV, 1xUSB and 1xRS232.

6. Output ports: 1xaudio, 1xVGA

7. Sound amplification input.

8. Front speakers: equal or greater than 2x10W

9. Voltage: AC(90-240)V - 50/60Hz

10. Power rating of whole unit: standby power: less than 1W, nominal power: 220W

11. Playing function: built-in USB multi media playing, support playing pictures, audio, video, texts without computers or any other external devices.

12. Full-touch function for the whole unit: in any passage way, without use of physical buttons, by using gestures, interactive intelligent feature menu can show up, picture mode, passage way switch, channel switch, brightness, audio volume and contrast adjust functions can be realized. Android system is not used in order to maintain stability of TV.

13. Intelligent light sensing: TV brightness will go down automatically upon approaching of touch TV users.

4) OPS structure computer

1. Computer is standard 80-pin pluggable and un-pluggable(no independent wire connection) OPS computer, non-standard OPS computer structure computer is not acceptable (OPS dimensions are limited to 130mm for length, 30mm for thickness and 200mm for width.

2. Internal PC is modular design. Except for power wire, not any other external visible wires are present in order to avoid signal loss due to wires and enable easy after sales maintenance.

3. Low-noise heat conduction tube heat sink design, avoiding heat sink problems due to excessive heat generation by desktop unit solution. Low power dissipation notebook CPU and OPS computer whole unit power dissipation less than 60W.

4. OPS power is supplied by a separate adapter.

5. PC CPU intel i5 dual core 2.8 GHz, internal 4G, hard disk 500G, CPU power dissipation of 35W, internal WiFi dual antenna module and internal internet card.

6. 1xHDMI output, 1xRS232, 1xinternet cable port, 2xUSB3.0, 4xUSB2.0

5) Software functions:

1. Gesture recognition: Support Windows, Android, MAC gestures,       enabling zoom, rotate; no need to click any buttons or shortcuts in thesoftware interface, you can  achieve writing, roaming and erasable    gestures (gesture recognition provide patent certificate);

2.    Screen Hold function: a key lock, setting to open or close the    touch function, prevent misuse by software directly. (Provide the  patent certificate)

3.    PPT application: work seamlessly with PPT software, during PPT playback, you can achieve directly PPT flip, labeling and erasing through software shortcuts.

4.    The pen functions: to provide pencils, soft pencil, brush, texture pen, objects, pens, etc. 8 kinds of pens and offer multi types of lines, line ends, thickness, color, contrasts and other property settings.

5.    The penwipe function: provides object rub, dot rub and scratch brush, to achieve different objects erases

6.    Graphic plotting: for fast graphics rendering, including linear, rectangular, oval, round, triangular, pentagonal, five-pointed star-shaped, hexagonal, diamond, arrow, double arrow; cubes, cylinders, cones, etc. user-friendly graphical tool to quickly create standard graphics. Vertices of drawn graphics can be edited, and graphics pattern filling, moving and rotating can be realized.

7.    Auxiliary tools: magnifying mirror, ruler, compasses, set-square, protractor, screen recording, video recording, video booth, fill bucket, searchlight, cover screen, camera, randomly getting a number and other commonly used tools, and various mathematically aiding drawing tools.

8.    Page function: can provide white pages, blackboard pages, green pages, transparent pages, picture pages, screen pages, can arbitrarily change the page background according to teaching needs

9.    Transparent Page:  to achieve seamless handover between handwriting and mouse. On the same page, computer operation, handwriting and labeling can be achieved together.

10.Picture Pages: Provide swastika grid, sheet music, Piano, four-line three-grid, English letters and other discipline page.

11.Page operation: support page zoom, roaming, roaming return, the whole page clear, page flip, etc., the roaming function support infinite amplification and moving for the writing page.                             

12.Direct calling external camera video; and the number of projectors (high shot instrument), with quasi-camera interface perfect combination of video booth, a key call.

13.Reading function (In win7 system, support Chinese, English, digital reading).

14.Handwriting recognition, support handwriting directly into printing, and rapid phonetic notation for Chinese characters.

15.Support recording and screen recording. Recording function allow s playback of all content written on the        whiteboard, and   saving it in a media format; screen recording can record not only writing, but also the whole operation including voice and save the video file in the format of AVI and SWF.

16.Insert object: insert picture supports PNG / BMP / WMV / JPG / JPEG and other insert, text, audio support MP3 format / WMA / WAV / AAC and other formats, video support AVI / SWF / MP4 / WMV / FLV / mpg insert / 3GP and other formats, such as     insert histograms

17. Compatible operating systems: Windows XP and above,   LINUX, Mac system, Android. All these OS   support double pen writing.

18.offline lessons preparing; software enables offline use   for       teacher preparing lessons conveniently; under WINDOWS7       operating system and Word, IE browser, PPT, image browser and other applications, multi-touch  function is realized directly without the aid of special  software or interface , such as zoom function which can be achieved directly by hand at any time, you do not have to go first to the menu, which greatly saves time and effort for teachers.

19.  Software upgrades: The software offers lifetime free upgrade

service.

20.Resource Library:

a)     The software comes with various disciplines of teaching resources, including pictures, text, multi disciplinary dynamic resources, and provides custom tools and custom resources. Teachers can implement custom resource conservation, management and calls.

b)     Mathematics teaching support: the math resource repository contains mathematical formulas, function curves, mathematics graphics. Common mathematical formulas include a number of commonly used mathematical formulas which have calculation function,  based on the variable value entered by the user. Function curves contain a number of commonly used functions curves, for example, sine, cosine, quadratic, etc. and according to the definition domain and value domanin of function, display corresponding two-dimensional functions, the user can change the function of the curve, definition domain and value domain and save it to the repository. Function graphs contain some common property graphics, such as  two-dimensional coordinate system, three-dimensional coordinates, sine curve, cosine curve graphics.

c)     Physics teaching support: contain slide rheostat, spiral micrometer, micrometer, spring balance, concave lens, lens and such experimental graphics as electric circuit, optics etc.

d)       Chemistry Teaching support: this repository contain conventional chemical reaction equations from junior high schools and high schools and a variety of chemical lab wares, including the commonly used chemical beakers, flasks, funnels, alcohol burner, measuring tube, separating funnel, etc. and also dynamic change of container liquid surface, automatic plane maintenance and random adjustment of liquid surface height.

e)      Language teaching support: Vocabulary library resources in English teaching and reading function. Chinese language teaching including the phonetic features of Chinese characters, Chinese characters stroke order playback function, support Chinese characters reading.

f)       Other disciplines Support: teaching resources include geography, history, biology, music and other disciplines.