Multifunctional laser virtual keyboard

Abstract

The invention relates to a multifunctional laser virtual keyboard, which comprises a laser keyboard projection module, an infrared line laser, a camera sensor, a microprocessor and an upper computer,wherein the laser keyboard projection module is used for generating the pattern of the keyboard on one plane; the infrared line laser generates line laser parallel with the plane for indicating the key position of the finger; the camera sensor is used for collecting the key position image of the finger and feeds image information back to a microprocessor; the microprocessor transmits the image information to the upper computer; the upper computer receives the image information and carries out image processing; and through a mapping relationship between the key position of the pattern of the projection keyboard and the keyboard key position collected by the camera sensor, a key detection function, a touch screen function and a scrawling and drawing function can be finished.

Description

technical field [0001] The invention relates to an input device, in particular to a multifunctional laser virtual keyboard. Background technique [0002] With the rapid development of social economy and the rise of various smart terminals such as notebooks, IPADs, and smart phones in recent years, people have higher and higher requirements for the experience of using interactive keyboards, not only limited to stable operation, but also fashionable, portable, and functional. The demand for innovation and other aspects is getting higher and higher. At present, the existing interactive keyboards supporting smart terminals on the market involve mechanical electronic keyboards, touch-screen soft keyboards, folding keyboards, laser projection virtual keyboards, and so on. However, these devices have many shortcomings. From the perspective of the realization principle of the keyboard, the current mechanical and electronic keyboards based on electronic circuits have knocking sounds...

AI Technical Summary

Problems solved by technology

However, there are many shortcomings in these devices. From the perspective of the realization principle of the keyboard, the current mechanical and electronic keyboard based on electronic circuits has knocking sounds, inconvenient maintenance, and cannot be strictly waterproof.

The soft keyboard based on pure software is limited by the touch screen, the input speed is slow, the correct rate is low, and the user experience has been criticized by users for a long time

At present, the emerging virtual keyboards on the market are all projection-type virtual keyboards, which are new keyboards based on image processing technology. The working principle is essentially different from traditional keyboards. This product has the advantages of both mechanical keyboards and soft keyboards, but the development is still Immature and expensive with many limitations

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