Capacitive screen-based information input method and capacitive screen input system

Abstract

The invention discloses an information input method based on a capacitive screen. A capacitive screen input device is composed of a data input end, control software and a data storage device. The data input end comprises the capacitive screen and capacitive chalk, and data input is directly completed on the capacitive screen through the capacitive chalk. The control software is composed of a signal induction module and a signal identification module, the signal induction module induces the data input traces of the capacitive chalk on the capacitive screen, and the signal identification module completes data translation. The data storage device comprises a data storage unit and a data caching unit, the data storage unit and the data caching unit are connected through a data transmission bus, and the data storage unit receives translated data information and completes data calling and storing through the data caching unit. The invention further discloses a capacitive screen input system for achieving the method. The capacitive chalk is used for directly completing data input on the capacitive screen, auxiliary devices such as a displayer are not needed for completing data input, and thus cost is effectively saved. The functions of data inputting, identifying, transmitting and saving are achieved by combining a control program.

Description

technical field [0001] The invention relates to capacitive screen design technology, in particular to an information input method based on a capacitive screen, and more to a capacitive screen input system satisfying the method. Background technique [0002] The capacitive touch screen is coated with a layer of transparent special metal conductive substance on the glass surface. When a finger touches the metal layer, the capacitance of the contact will change, causing the frequency of the oscillator connected to it to change. By measuring the frequency change, the touch position can be determined to obtain information. At present, if it is necessary to realize data exchange through the main body of the capacitive screen, a special input terminal must be set on the capacitive screen, which is generally composed of a touch display device or an external input keyboard display, which makes the structure too complicated and not only inconvenient to use , the use range is relative...

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