Projection screen touch terminal device based on Android system

Abstract

The invention discloses a projection screen touch terminal device based on an Android system. Functions such as projection of a mobile phone interface or a flat computer interface under the Android system and interactive operations between a user and a projection screen are achieved by utilizing hardware equipment such as a camera, an advanced RISC machine (ARM) processor and a projector and combining image processing techniques. The user can achieve the functions of man-machine interaction, multi-touch and gesture recognition on the projection screen directly and remotely by utilizing lasers or the fingers directly, the limitation of existing projective plane materials is solved, and the problem of bad performance of man-machine interaction is solved. The projection screen touch terminal device based on the Android system is suitable for usage of aspects of educational training, enterprises, government working, entertainment, display and demonstration industries and the like.

Description

technical field [0001] The present invention relates to a touchable projection screen, and more specifically, to a terminal device for a projection screen based on an Android system and capable of multi-touch and gesture recognition. Background technique [0002] With the continuous progress of society, multimedia technology has also been rapidly developed and popularized. Multimedia is used by people in different industries such as education, commerce, and exhibitions. [0003] However, 1. The interface projected by the projector can only stay on one interface so far, without other rich functions, and when using the projector, human-computer interaction cannot be realized. At present, the improvement of the projector is only in the The size and performance are improved, but it cannot meet some special requirements of customers; 2. In view of the development of the current mobile phone touch screen, the current touch screen has four touch methods, namely: resistive touch, ca...

AI Technical Summary

Problems solved by technology

[0003] However, 1. The interface projected by the projector can only stay on one interface so far, without other rich functions, and when using the projector, human-computer interaction cannot be realized. At present, the improvement of the projector is only in the The size and performance are improved, but it cannot meet some special requirements of customers; 2. In view of the development of the current mobile phone touch screen, the current touch screen has four touch methods, namely: resistive touch, capacitive touch, infrared induction touch And the surface ultrasonic touch method, in addition to the above-mentioned several touch methods, the infrared touch and ultrasonic touch methods in the existing touch methods are also more practical. The price of the touch screen materials of other touch methods is relatively high, which makes it impossible to make a large touch screen. , can not meet the requirements of modern big screen

3. The touch screen can only be operated in a fixed place

[0004] In view of the above reasons, modern multimedia technology cannot meet people's needs and cannot bring more and better experiences to users.

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