Multi-point measurement and control system and method based on optical sensing distributed multi-system parallel detection

Abstract

The invention discloses a multi-point measurement and control system and a multi-point measurement and control method based on optical sensing distributed multi-system parallel detection. The system comprises a touch panel, a plurality of optical sensors, a central processing system, an area determination unit and an area information processing unit, wherein the plurality of optical sensors are arranged behind a screen of the touch panel; the touch panel is divided into a plurality of areas; each area corresponds to one optical sensor; the area determination unit determines an area where touch occurs, the optical sensor corresponding to the area acquires touch information, and the area information processing unit processes the touch information and sends the processed touch information to the central processing system; and the central processing system comprehensively processes the touch information from each module, and the touch point information of various modules is integrated into the same screen coordinate system, packaged in a certain protocol format and sent to an application system. The distributed cooperative work detection method can be used for really effectively detecting and positioning a plurality of arbitrary touch points, and is high in detection accuracy; and the area of a touch surface can be infinitely expanded, and is not limited by the control area of a single optical sensor.

Description

technical field [0001] The invention relates to a new technology based on multi-channel optical sensing distributed cooperative work and multi-touch positioning. Computer interactive touch control system field. Background technique [0002] The rapid development of electronic information technology makes people's life, study and work more and more inseparable from the application of various electronic products. Every electronic product needs to provide a human-computer interaction user interface, such as buttons, switches, keyboards, mice, etc. Among the related technologies of various user interfaces, touch-sensitive displays (also known as "touch screens" or "touch panels") provide a user-centered natural and efficient way of human-computer interaction, and are used in personal portable electronic products, information It has broad application prospects in fields such as inquiry, education, games, exhibitions, and command decision-making. [0003] As a user man-machine ...

AI Technical Summary

Problems solved by technology

However, the accuracy of detecting touch events through the depth information obtained from the upper camera is not high, and there is a delay. The installed top camera takes up a large space, and there are restrictions on user interaction behavior. ) occlusion, etc. In addition, only one side camera cannot solve the problem of a large number of occlusions between contacts

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