Virtual secondary projection touch-tone elevator call system and use method thereof
A technology of secondary projection and keys, applied in the field of electronic technology, can solve problems such as inconvenience and easily damaged keys, and achieve the effect of solving easy damage, preventing misoperation, and reducing difficulty.
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[0038] Example 1:
[0039] See figure 1 , A virtual secondary projection button type call system, including a car body 1, a central processing module 2 is installed on the car body 1, the central control module is connected with a power module 16, and the inner wall of the car body 1 is cut out The projection slot 3, on the one hand, can protect electronic devices such as the virtual button projection module 4, on the other hand, the setting of the projection slot 3 can reduce the projection brightness, thereby improving the definition of projection. The upper end wall of the projection slot 3 is equipped with a virtual button projection module 4 , The virtual key projection module 4 includes a laser projection unit 401, an infrared horizontal optical network unit 402, a sensor unit 403 and a different pattern storage unit 404. The laser projection unit 401 is used to project the virtual key pattern visible to the user, and the infrared horizontal optical network unit 402 It is u...
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