An entertainment system for the blind using tactile display

该项目旨在为盲人开发一个使用触觉显示的娱乐系统。触觉显示就像使用针阵的大量盲文显示。销由压电致动器驱动。触觉显示系统可以即时改变触觉图像。我们的娱乐系统由这样一个触觉显示系统、一台电脑和一支使用超声波设备的触控笔组成。盲人可以直接用超声波笔将位置信息输入到系统的触觉表面。这是我们系统的主要特点。盲人用户可以在触觉图像上指向任意位置，系统可以向用户反馈一种触觉或声音动作，如振动销钉、改变图像、播放声音等。我们通过网线将两个系统连接起来，制作了对位式乒乓球游戏和绘图软件。乒乓球游戏是两个用户玩的简单游戏。他们用手找到用触觉图像表示的“移动的球”，然后用超声波笔控制的球拍击球。绘图软件是将用户绘制的图像从一侧传输到另一侧。从估计实验的结果来看，初学盲人可以玩和享受乒乓球类游戏，并且他们想要更多的游戏标题来享受。在绘图软件方面，通过本系统可以实现简单图像的传输。

The project aims to develop an entertainment system for the blind using tactile display. Tactile display is like a mass of Braille display using pin-matrixes. The pins are drove by Piezo-actuators. The tactile display system can change the tactile image immediately. Our entertainment system is composed of such a tactile display system, a computer, and a stylus pen using ultra sonic device. The blind person can input position information to the tactile surface of the system directly with the ultrasonic pen. That is the main feature of our system. The blind user can point arbitrary positions over the tactile image, and the system can make feedback to the user a kind of tactile or acoustic actions, like vibrating pins, changing the image, playing a sound, and so on. We connect two of the system through network cable, and made match-up type ping-pong game and drawing software. The ping-pong game is simple game played by two users. They find 'moving ball' expressed by tactile image by hand, and hit back it by racket controlled by ultrasonic pen. The drawing software is to transmit an image drawn by the user from one side to the other side. From the results of estimating experiment, beginner blind person can play and enjoy the ping-pong type game, and they want to more title of games to enjoy. About drawing software, it was clear that simple image can be transmit using the system.