The electronic whiteboard is a high-tech product developed by integrating cutting-edge electronic technology, software technology and other high-tech means. It uses the principle of electromagnetic induction and combines computers and projectors to achieve paperless office and teaching. Electronic whiteboards evolved from ordinary whiteboards. The earliest electronic whiteboards that appeared were copy-type electronic whiteboards. With the development of technology and market needs, interactive electronic whiteboards appeared. Currently, these two types of electronic whiteboards coexist on the market. The following describes these two types of electronic whiteboards respectively.
Copy electronic whiteboard: The so-called copy electronic whiteboard means that the content written on the whiteboard can be scanned and printed out in a certain way through simple operations by the user. The function completion process is the same as the ordinary copying process. First, the image sensor device collects the content on the whiteboard. After the collected signal undergoes certain image processing, it is finally output using thermal, inkjet or other printing methods.
The output paper is generally A4 format. The image sensing device of this kind of electronic whiteboard is generally CCD, and the scanning method adopts CCD module movement or whiteboard film movement. Print output methods generally include thermal paper output and inkjet plain paper output. There are two types of print output: black and white and color output. In addition to the copy function, some manufacturers have also added the function of connecting to the computer, which can scan the contents of the whiteboard into the computer. The function is equivalent to a scanner. At present, the manufacturers of copy-type electronic whiteboards include Japan's Panasonic and Plux, which sell for about 10,000.
Interactive electronic whiteboard: The interactive electronic whiteboard can communicate with the computer, connect the electronic whiteboard to the PC, and use a projector to project the content on the PC onto the electronic whiteboard screen. In specialized applications With the support of the program, a large-screen, interactive collaborative conference or teaching environment can be constructed. By using a specific positioning pen to operate on the whiteboard instead of the mouse, you can run any application, edit, annotate, save files, and other operations that can be performed using the keyboard and mouse on a computer.
The interactive electronic whiteboard also supports copying. Connect the electronic whiteboard directly to the printer and use specific whiteboard pens to write on the blackboard. When you need to print, just press the print button on the panel to achieve color or black and white. Print. It can also be used as a PC whiteboard. Connect the electronic whiteboard to the PC. At this time, the electronic whiteboard is equivalent to a particularly large handwriting board. You can write and draw on it and display it on the PC in real time. The file is saved as a graphic file. . This feature generally requires a dedicated application to support it. If you use a specific application such as MICROSOFT's NETMEETING, the interactive electronic whiteboard can communicate with other offices and conference rooms through the network to achieve network meetings.
Working principle: The working principle of the electronic whiteboard is divided into two types: pressure-sensitive principle and laser tracking principle. A touch whiteboard using the pressure-sensitive principle is equivalent to a touch screen on a computer. It is a human-computer interactive input device that uses a finger or pen to touch the options displayed on the screen to complete specified work. There are two layers of pressure-sensitive film inside this electronic whiteboard. When a certain point on the surface of the whiteboard is pressed, the two films will cause a short circuit at this point. The controller of the electronic whiteboard detects the coordinate value of the pressure point (touched by a finger or pen). position) and sent to the computer via the RS232 interface. There are laser emitters on both sides of the whiteboard using the laser tracking principle. After the whiteboard is started, the laser transmitter emits a laser to scan the surface of the whiteboard, and the special pen has a laser sensing function to feedback the pen's position.
According to the installation type, it is divided into: wall-mounted, slide-type, mobile, and closet-type.
iBoard interactive electronic whiteboard is developed and produced by Shenzhen iBoard Technology Co., Ltd. with independent intellectual property rights and patented technology. It is widely used in education, training, conferences, information release, military High-tech products for command and remote collaboration.
iBoard interactive whiteboard is connected to the computer through the USB interface, and uses a projector to project the display content on the computer onto the electronic whiteboard. With the support of specialized applications, it can construct a large screen, Interactive collaborative meeting or teaching environment realizes paperless meetings and teaching.
IB-78W infrared interactive electronic whiteboard
Appearance: black aluminum alloy frame, white PVC panel surface covered with imported writing film (ordinary water pen can be erased)
Touch size: 1469mm (width)? 1145mm (height)
Physical size: 1634mm (width) Translucent objects, ordinary writing pens.
Touch characteristics
Sensing method: infrared sensing method
Positioning accuracy: typical accuracy is less than 2mm
Cursor speed: 180 points/ Seconds
Resolution: 4096(W)?4096(D)
Response time: First point (click): 25ms
Continuous (writing): 8ms
Infrared optics: 288 (wide edge)? 224 (high edge) pairs
Sensable object size: greater than: 3.0mm, recommended size: 5.0mm
Touch life: more than 60,000,000 single touches
Power supply
Power supply: USB direct power supply (no external power supply)
Working voltage ：DC4.6V～DC5V
Power consumption: less than 1W, working at USB-5V voltage, current less than 200mA
Working environment
Temperature: working temperature : -10?Cto50?C
Storage temperature: -30?Cto60?C
Humidity: Working humidity: 20to85
Storage humidity: 0~95
Lighting test: incandescent lamp (220V, 100W), working distance: 350mm
Working altitude: 3,000 meters
PC interface: USB2.0
Working life: more than 5 years
Working environment: Can work in sunlight, indoors, outdoors and other environments.
Software functions
Mouse function: It can completely replace the mouse and supports single-click, double-click, right-click and other functions.
Annotation function: supports OFFICE series software such as: PPT, WORD, EXCEL, etc., and supports the pen-up and screen annotation function of all application software.
Writing function: Provides writing functions of multiple pen types, multiple line types of hard pens, row pens, highlighters, and object pens.
Whiteboard function: supports the creation of whiteboard, blackboard, background panel, desktop panel function, and supports borderless full-screen writing function.
Zoom function: supports the function of reducing and enlarging the displayed content.
Object editing function: supports copying, deleting, moving and other editing functions of objects.
Searchlight function: Supports searchlight movement, changing shape, color and other operations.
Curtain function: supports the up and down, left and right movement of the mask.
Resource library function: Supports an open resource library, and users can add or delete content at will.
Multimedia import function: supports the import of FLASH, PPT, audio and video files and other types of files.
Multimedia recording function: supports the function of saving sounds and whiteboard writing content into multimedia files, and supports playback, copying and other functions.
Camera function: Support camera function.
Index function: Supports whiteboard index function.