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Non-contact control method and equipment based on gestures

A non-contact, control method technology, applied in the direction of program control, electrical program control, general control system, etc., can solve problems such as being vulnerable to electric shock, user electric shock, water vapor leakage, etc., to improve user experience, avoid electric shock hazards, and operate simple effect

Active Publication Date: 2015-04-08
SHENZHEN SUPERNODE NETWORK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the control of household appliances is generally direct button control or remote control. Remote control requires a remote control, and the remote control is easy to lose. Direct button control is also prone to the risk of electric shock, such as water heaters in humid environments. When the electrical appliances used in the water heater are directly controlled by the button, the water vapor on the control panel of the water heater can easily lead to electric leakage, thereby exposing the user to the risk of electric shock

Method used

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  • Non-contact control method and equipment based on gestures
  • Non-contact control method and equipment based on gestures
  • Non-contact control method and equipment based on gestures

Examples

Experimental program
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Embodiment approach 1

[0037] This embodiment provides a gesture-based non-contact control method, including the following steps:

[0038] S1: Pre-store a plurality of pre-stored gesture shapes that have been associated with different control signals.

[0039] Such as figure 1As shown, the pre-stored gesture shape can be any one or combination of the following: (1) make a fist up or down (that is, no finger extended), (2) extend a finger up or down, (3) up or down Extend two fingers downward, (4) extend three fingers upward or downward, (5) extend four fingers upward or downward, (6) extend palm fully open (i.e. extend five fingers); these different pre-stored gesture shapes can be associated with a control signal individually or in combination. For example: Stretch out a finger upward, which can be associated with control signals such as volume up, temperature rise, heating, forward; extend a finger downward, can be associated with control signals such as volume down, cool down, cool down, and b...

Embodiment approach 2

[0055] This embodiment is roughly the same as Embodiment 1, except that step S3-3 is different. In this embodiment, S3-3 is: remove the point cloud mid-distance preset corresponding to the point cloud data within the preset recognition range The point cloud beyond the preset distance from the origin to get a new smaller point cloud, which is the point cloud of the gesture to be tested.

[0056] Other steps in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

Embodiment approach 3

[0058] This embodiment is roughly the same as Embodiment 2, except that step S3-5 is different. In this embodiment, S3-5 is: detecting the contour of the two-dimensional shape projected by the point cloud on the projection plane to obtain a sense Measure gesture shape.

[0059] The specific steps for detecting the contour of the above-mentioned two-dimensional shape are as follows:

[0060] a) First find the convex hull of the contour ( Figure 6 circumscribed polygon in ).

[0061] The point cloud on the two-dimensional plane is detected, and the convex hull is a convex polygon formed by connecting the outermost points of the point cloud, which can contain all the points in the point cloud.

[0062] b) Find the palm position.

[0063] Find every two adjacent convex hull endpoints ( Figure 6 The point on the contour between the solid triangle points in ) is the farthest point from the two points, and this point is the deepest concave point on the contour, which is called ...

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Abstract

The invention relates to the non-contact control field and discloses a non-contact control method and equipment based on gestures. The method comprises steps that, S1, multiple pre-stored gesture shapes associated with different control signals are pre-stored; S2, point cloud data in a three-dimensional space of each point of gestures sensed through a point cloud mode is received; S3, the point cloud data is processed to form sensing gesture shapes in matching with the point cloud data; and S4, the sensing gesture shapes are matched with the pre-stored gesture shapes, if the matching degree of the sensing gesture shapes and one of the pre-stored gesture shapes reaches the preset degree, a control signal associated with the pre-stored gesture shape is emitted to control a to-be-controlled object. Compared with the prior art, the to-be-controlled object can be remotely controlled by a user through simple gestures, no direct contact with the to-be-controlled object is required, and a problem of electric shock danger caused by electric leakage of the to-be-controlled object can be settled.

Description

technical field [0001] The invention relates to the field of non-contact control, in particular to a gesture-based non-contact control method and equipment thereof. Background technique [0002] At present, the control of household appliances is generally direct button control or remote control. Remote control requires a remote control, and the remote control is easy to lose. Direct button control is also prone to the risk of electric shock, such as water heaters in humid environments. When the electrical appliances used in the water heater are directly controlled by buttons, the water vapor contained on the control panel of the water heater can easily cause electric leakage, thereby exposing the user to the risk of electric shock. Contents of the invention [0003] Purpose of the invention: Aiming at the problems existing in the prior art, the present invention provides a gesture-based non-contact control method and its device. The user can control the object to be contro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04
CPCG05B19/0423
Inventor 刘晓涛
Owner SHENZHEN SUPERNODE NETWORK TECH
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