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Remote controlled wireless locating electronic whiteboard system

An electronic whiteboard and wireless positioning technology, which is applied in the fields of electrical digital data processing, instruments, calculations, etc., can solve the problem of inconvenient operation of wireless positioning electronic whiteboards, and achieve the effects of increasing convenience, eliminating influence, and reducing volume

Inactive Publication Date: 2006-10-04
UNKNOWN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The present invention provides a wireless positioning electronic whiteboard system with a remote control function, which solves the inconvenience in the operation of the existing wireless positioning electronic whiteboard

Method used

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  • Remote controlled wireless locating electronic whiteboard system
  • Remote controlled wireless locating electronic whiteboard system
  • Remote controlled wireless locating electronic whiteboard system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 The present invention shown can be divided into stroke sensor 11, signal pen 15, blackboard eraser 16, remote controller 17 and whiteboard 18 structurally, wherein stroke sensor 11 is made up of left signal receiver 12, right signal receiver 13 and signal processor 14 compositions.

[0047] figure 2 As shown, the remote controller can be a general-purpose radio remote controller, and should have at least four buttons: button 1, button 2, button 3, and button 4, respectively representing new whiteboard, page up, page down, The whiteboard prints four remote control functions, and sends the remote control information through the modulation module 402 and the antenna 403 .

[0048] The signal pen 15 is made up of a battery 21, a mechanical switch 22, a thin film circuit board 23, an infrared emission sensor 27 and an ultrasonic emission sensor 28, wherein an infrared driving circuit 24, an ultrasonic driving circuit 26 and a microprocessor 25 are arrang...

Embodiment 2

[0069] The monostable trigger 71 in the first narrow pulse filter 371 and the second narrow pulse filter 372 can also be realized by using an 8253 timing counter.

Embodiment 3

[0071] The monostable flip-flop 71 in the narrow pulse filter one 371 and the narrow pulse filter two 372 can also adopt a dedicated chip 74XX122.

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Abstract

The invention relates to a remote control and radio position finding electrical white board system. The invention is composed of the strokes sensor 11, the signal pencil 15, the board eraser 16, the common writing white board 18 and the remote controller 17. The remote controller employs the general radio remote controller with at least four keys, together with the modulation module and the aerial, which transmits the remote control information. With the software interface of operating the PC remotely and wirelessly, the use can use conveniently. The influence of the external noise and the supersonic echo is eliminated, by adding the narrow pulse filter and by controlling the working period of the pulse shaping circuit. By this means, the volume of the signal pencil can be decreased.

Description

technical field [0001] The invention relates to a wireless positioning electronic whiteboard which can be controlled by a remote controller. The so-called wireless positioning electronic whiteboard is an electronic whiteboard based on joint positioning of ultrasound and infrared, and its remote control device is a device for remote operation of the wireless positioning electronic whiteboard. Background technique [0002] The electronic whiteboard system is widely used in the occasions of teaching, office, meeting and distance education. According to its working principle, it can be divided into scanning electronic whiteboard, touch electronic whiteboard, laser electronic whiteboard and wireless positioning electronic whiteboard. Among them, the wireless positioning electronic whiteboard based on ultrasonic and infrared signals has the advantages of small size, light weight, convenient transportation and installation, and high resolution. The wireless positioning electronic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/033G06F3/00G06F3/0354
Inventor 王树勋
Owner UNKNOWN
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