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Method for recognizing objects on a touch screen and electronic equipment using the method

A technology for electronic equipment and object recognition, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc.

Active Publication Date: 2016-10-05
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Through the research on the prior art, the inventor found that: the existing touch screen, no matter what type, can only detect the user's operation through the touch screen, and then perform corresponding actions according to the user's operation, but cannot perform the operation Body, that is, the object in contact with the touch screen, for identification

Method used

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  • Method for recognizing objects on a touch screen and electronic equipment using the method
  • Method for recognizing objects on a touch screen and electronic equipment using the method
  • Method for recognizing objects on a touch screen and electronic equipment using the method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] figure 1 It is a schematic flowchart of a method for recognizing an object on a touch screen provided in an embodiment of the present application.

[0052] like figure 1 As shown, the method includes the following steps:

[0053] S101: Obtain a covering position of the operating body on the touch screen.

[0054]When a certain operating body is placed on the touch screen, since the operating body has a certain volume, it will occupy a certain position on the touch screen. When obtaining the coverage position of the operating body, various methods such as jump point measurement, capacitance detection, or external camera detection can be used.

[0055] S102: Perform an impedance test on a plurality of electrodes located in the covering position on the touch screen to obtain an impedance distribution of the operating body.

[0056] In the embodiment of the present application, through pre-design, the impedance distribution is different in different operating bodies tha...

Embodiment 2

[0062] In the above embodiment, when the impedance test is performed after obtaining the coverage position of the operating body on the touch screen, the measurement can be performed by the jump point method. One of the electrodes is used as the excitation pole, and then the other electrodes are used as the detection pole for detection, and each electrode within the coverage of the object is selected as the excitation pole once.

[0063] In addition, when determining the covering position of the operating body on the touch screen, other methods can also be used to determine the approximate area of ​​the position covered by the object, for example: capacitance detection or an external camera can be used to determine the approximate area, Take the external camera as an example: the touch screen can be roughly divided into several areas. When an object is placed in a certain area, the image can be collected and analyzed by the external camera to obtain the approximate range of the...

Embodiment 3

[0080] image 3 It is a schematic flowchart of another method for recognizing an object on a touch screen provided in the embodiment of the present application.

[0081] like image 3 As shown, the method includes the following steps:

[0082] S301: Pre-acquire impedance distribution maps of operating bodies with different identifiers.

[0083] In the embodiment of the present application, through pre-design, the impedance distribution is different in different operating bodies that match the provided touch screen, that is to say, for each operating body, its impedance distribution is unique, This makes it possible to identify each operator through the impedance distribution.

[0084] S302: Establish a correspondence between the identifiers of different operating bodies and impedance distribution diagrams;

[0085] S303: Store the correspondence between the identifiers of the different operators and the impedance distribution diagrams in the form of an impedance distributi...

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PUM

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Abstract

The invention discloses a method for recognizing objects on a touch screen and electronic equipment applying the method. The method is applied to the electronic equipment, the touch screen is arranged on the electronic equipment, and resistance distribution in different operation bodies matched with the touch screen are different. The method includes acquiring covering positions of the operation bodies on the touch screen; performing resistance testing on multiple electrodes positioned, within the covering positions, on the touch screen to acquire resistance distribution conditions of the operation bodies; inquiring a prestored resistance distribution table containing various operation bodies to determine identities of the operation bodies matched with the resistance distribution conditions, of the operation bodies, acquired by testing. Compared with the prior art, the method has the advantages that the resistance distribution conditions of the operation bodies are different, so that each operation body is unique; by testing the resistance distribution conditions of the operation bodies and matching in the resistance distribution table, the operation bodies can be determined uniquely, and recognition of the operation bodies is realized.

Description

technical field [0001] The present application relates to the technical field of touch screens, in particular to a method for recognizing objects on a touch screen and an electronic device applying the method. Background technique [0002] As the latest electronic device input device, the touch screen is currently the simplest, most convenient and natural way of human-computer interaction. It endows multimedia with a new look and is a very attractive new multimedia interactive device. Mainly used in public information inquiry, leadership office, industrial control, military command, electronic games, ordering songs and dishes, multimedia teaching, real estate pre-sale, etc. [0003] Existing touch screens are divided into two types: resistive and capacitive, wherein: the resistive touch screen is set on a resistive film screen that can generate a resistance number after it can be stressed, that is, the resistive touch screen mainly uses pressure sensing to operate; and The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 阳光
Owner LENOVO (BEIJING) LTD