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Touch recognition device and method based on Doppler effect and touch screen

A technology of Doppler effect and identification device, which is applied in the field of touch control, and can solve problems such as the absence of human fingers

Active Publication Date: 2014-08-20
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are no related products on the market that recognize the touch actions of human fingers.

Method used

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  • Touch recognition device and method based on Doppler effect and touch screen
  • Touch recognition device and method based on Doppler effect and touch screen
  • Touch recognition device and method based on Doppler effect and touch screen

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] figure 1 A schematic structural diagram of a touch recognition device provided in Embodiment 1 of the present invention, as shown in figure 1 As shown, the recognition process of the touch recognition device is based on the Doppler effect, the touch recognition device includes: a first transceiver module 1, a second transceiver module 2 and a calculation module 3, the first transceiver module 1 is used to The second detection wave is transmitted in the second direction, and the first feedback wave formed after the first detection wave is reflected by the touch body; the second transceiver module 2 is used to transmit the second detection wave in the second direction, and receive the second detection wave through the The second feedback wave formed after the reflection of the touch body; the calculation module 3 is used to calculate the moving speed and movement of the touch body at the touch point according to the first detection wave, the first feedback wave, the secon...

Embodiment 2

[0112] Embodiment 2 of the present invention provides a touch screen. The touch screen includes: a touch recognition device. The touch recognition device adopts the touch recognition device provided in Embodiment 1 above. For details, please refer to the description in Embodiment 1 above. Let me repeat.

[0113] Since the touch recognition device provided in the first embodiment above is set on the touch screen, the touch screen can accurately judge the touch action of the touch body, which enhances the human-computer interaction capability of the touch screen, making the touch screen more Intelligent.

[0114] It can be seen from Embodiment 1 that each identification device corresponds to a touch point, so in actual production, multiple touch identification devices can be set on the touch screen, so that the touch objects at multiple positions on the touch screen can be identified. Judgment of touch actions. As a preferred solution, when there are multiple touch recognition...

Embodiment 3

[0117] Figure 4 The flow chart of the touch recognition method based on the Doppler effect provided by Embodiment 3 of the present invention, as shown in Figure 4 As shown, the touch recognition method is based on the touch recognition device in the first embodiment above, and the method includes:

[0118] Step 101: The first transceiver module transmits a first detection wave along a first direction, and receives a first feedback wave formed after the first detection wave is reflected by the touch body.

[0119] In step 101, the first transceiver module transmits along the first direction with a frequency f 1 The first detection wave, the first detection wave moves to the touch point and is reflected by the touch body to form a frequency f 3 The first feedback wave moves in a direction opposite to the first direction, and the first feedback wave is received by the first transceiver module.

[0120] Step 102: The second transceiver module transmits a second detection wave...

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Abstract

The invention discloses a touch recognition device and method based on the Doppler effect and a touch screen. The touch recognition device comprises a first receiving and sending module, a second receiving and sending module and a calculating module, and the first receiving and sending module is used for emitting a first detecting wave in the first direction and receiving a first feedback wave formed after the first detecting wave is reflected by a touch body. The second receiving and sending module is used for emitting a second detecting wave in the second direction, and receiving a second feedback wave formed after the second detecting wave is reflected by the touch body. The calculating module is used for calculating the moving speed and moving direction of the touch body at a touch point according to the first detecting wave, the first feedback wave, the second detecting wave and the second feedback wave. According to the technical scheme, one set of (two) receiving and sending devices is arranged, the moving speed and moving direction of the touch body of the touch point are solved based on the formula of the Doppler effect, and therefore the touch action of the touch body can be judged precisely.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a Doppler effect-based touch recognition device, method and touch screen. Background technique [0002] Human-computer interaction technology has become one of the most popular research topics at present, and human-computer interaction technology is gradually shifting from system-centered to user-centered, and the recognition of human finger movements has gradually become an important means of human-computer interaction. [0003] At present, there is no related product on the market that recognizes touch actions of human fingers. Contents of the invention [0004] The present invention provides a touch recognition device, method and touch screen based on the Doppler effect, which can accurately judge the touch motion of a touch body at a touch point. [0005] In order to achieve the above object, the present invention also provides a touch recognition device based on the Dopple...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/046
CPCG06F3/0416G06F3/046G06F3/042
Inventor 陈炎顺王红李耀辉许秋实
Owner BOE TECH GRP CO LTD
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