Wireless Bluetooth virtual instrument knob based on color discrimination and control method

Abstract

The invention discloses a wireless Bluetooth virtual instrument knob based on color discrimination and a control method. The wireless Bluetooth virtual instrument knob comprises a main circuit board, wherein a single-chip microcomputer, a color senor and a transparent sucking disc used for fixing the knob are arranged on the lower surface of the main circuit board; a rotary encoder and a Bluetooth communication module used for transmitting a color RGB (Red Green Blue) value and knob rotation encoding information are arranged on the upper surface of the main circuit board; a rechargeable battery used for supplying power to the main circuit board is also arranged on the main circuit board. According to the wireless Bluetooth virtual instrument knob, the color of a virtual instrument interface in a display area, in which the knob is positioned, is discriminated through the color sensor, after the color is processed through the single-chip microcomputer, the Bluetooth communication module transmits the color and a knob rotation code to the computer, virtual instrument software determines a position and functions of the knob through combining the corresponding relation between the colors of different areas of the virtual instrument interface displayed by the display and the received color code, and completes adjustment of virtual instrument parameters of the corresponding functions according to the knob rotation information.

Description

technical field [0001] The invention relates to the research field of virtual instrument knobs, in particular to a color recognition-based wireless bluetooth virtual instrument knob and a control method. Background technique [0002] A virtual instrument is a computer instrument system that uses a general-purpose computer as the core hardware platform, defines virtual panels designed by users, and uses test software to realize digital signal processing and test functions. Users use the mouse and keyboard or touch screen to operate the virtual panel, just like using a special measuring instrument. As computers get faster, software can perform more functions that were previously performed by hardware. [0003] Generally, when virtual instruments run on the hardware platform of general-purpose computers, our input devices are mouse, keyboard and touch screen. Compared with real instruments, virtual instruments lack real dedicated buttons and knobs, and have certain limitation...

AI Technical Summary

Problems solved by technology

If each virtual knob is equipped with a dedicated hardware control panel knob, not only the flexibility will be reduced, but also the pressure on cost and development cycle will be brought, which will greatly limit the development of virtual instruments and bury the "software is the instrument" of virtual instruments. "The advantages

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