把家裡的牆面 DIY 成觸控屏，需要多少錢？

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圖片來源：Brown Bird Design, 「Wall : Room-Scale Interactive and Context-Aware Sensing,」 by Yang Zhang et al. Presented at Chi Conference on Human Factors in Computing Systems, Montreal, April 21-26

研究人員用價值幾百美元的材料，就把一堵牆變成了一個巨大的觸摸屏。

在家也能 DIY 智能牆壁

這種智能牆壁可以感知人的觸摸，並在短距離內跟蹤手勢，還可以檢測設備的位置及運行狀態；有朝一日，這項技術甚至可以在有人進入房間時打開燈、在互動式電子遊戲中跟蹤玩家的動作，或者監控孩子的電視使用情況。「牆壁無處不在，為什麼不把它們變成智能家居的感測器呢？」 幫助開發「智能牆壁」這一概念的張揚（音譯，Yang Zhang）說，他是卡內基梅隆大學（Carnegie Mellon University）的計算機科學博士生。

Turn a Wall into a Touch Screen Cheap

The right paint can addpizazzto your walls—and now it can also make them smarter. Researchers recently converted a wall into an outsizetrackpadand motion sensor by using low-costconductivepaint to create a large grid of electrodes.

Such a smart wall can sense human touch and track gestures from a short distance. It can also detect the locations of appliances and whether they are switched on. The technology could someday turn on lights when a person enters a room, track a player"s motion in an interactive video game or monitor a child"s television use. 「Walls are everywhere, so why not turn them into sensors for smart homes?」 says Yang Zhang, a computer science doctoral student at Carnegie Mellon University, who helped to develop the concept.

To create the high-tech surface, Zhang and his colleagues applied painter"s tape in a lattice pattern to a 12-by-eight-foot wall, then coated it with commercially available conductive nickel paint. Removing the tape left a pattern of diamond-shaped electrodes, which the researchers connected using a grid of thin copper tape strips. Theyaffixedavinylsticker in the middle of each diamond toinsulatethe electrodes from one another. Finally, they wired the strips to a custom-built circuit board and covered the wall with standard latex paint. The entire project took…[read more]

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