WO2019024338A1

WO2019024338A1 - Lid and device thereof based on gesture recognition

Info

Publication number: WO2019024338A1
Application number: PCT/CN2017/112525
Authority: WO
Inventors: 曾德智; 尹波
Original assignee: 深圳市汇春科技股份有限公司
Priority date: 2017-08-01
Filing date: 2017-11-23
Publication date: 2019-02-07
Also published as: CN207046035U

Abstract

Disclosed are a lid and device based on gesture recognition. The lid comprises a body (1), wherein the body is internally provided with a cavity (4), a through hole (3) is provided between the top of the cavity (4) and an upper surface of the body, and an infrared filter is placed above the through hole. The device further comprises a photoelectric sensor, wherein the photoelectric sensor is placed at the bottom of the cavity. According to the lid and device based on gesture recognition, by combining a cavity, light is transmitted to the photoelectric sensor by means of a small hole so that light collection and recognition is carried out in an enclosed space, and interference from an external environment is reduced. The lid and device based on gesture recognition have a simple structure, and can be widely applied to the field of human-machine interaction.

Description

Cover and device based on gesture recognition

Technical field

The invention relates to the field of human-computer interaction, in particular to a device for spatial gesture recognition.

Background technique

In the prior art, the gesture recognition of the space is judged by the gesture action of the space to identify the operation intention of the person who gives the gesture action. However, the traditional gesture recognition process requires gesture modeling, gesture segmentation, gesture analysis, and the like. Complex steps and processes, poor user experience, and complex product structure, are susceptible to interference from the surrounding environment.

Therefore, the technology needs to be improved.

Summary of the invention

In order to solve the above technical problems, an object of the present invention is to provide a gesture recognition-based cover and device which is simple in structure and less disturbed by the surrounding environment.

The technical solution adopted by the invention is:

The invention provides a cover based on gesture recognition, comprising a body, a cavity is arranged in the body, and a through hole is opened between the top of the cavity and the upper surface of the body, above the through hole An infrared filter is placed.

As a modification of this technical solution, the cavity is an inverted funnel-shaped cavity.

As a modification of the technical solution, the upper surface of the body is provided with a recess for placing the infrared filter.

Further, the through hole has a height of 0.5 mm.

Further, the through hole has a diameter of 0.8 mm.

Further, a bottom of the body is further provided with a positioning post.

In another aspect, the present invention also provides a gesture recognition based device comprising the cover, further comprising a photosensor, the photosensor being placed at the bottom of the cavity.

The invention has the beneficial effects that the gesture recognition-based cover and device provided by the invention combines a cavity and transmits light to the photoelectric sensor through the small hole, so that the light is collected and recognized in the closed space, thereby reducing the outside world. Environmental interference; and simple structure.

DRAWINGS

The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings:

Figure 1 is a plan view of a first embodiment of the present invention;

Figure 2 is a bottom plan view of the first embodiment of the present invention;

Figure 3 is a bottom plan view of another perspective of the first embodiment of the present invention;

Figure 4 is a perspective view of a first embodiment of the present invention.

Detailed ways

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

1 to 4 are schematic views of a first embodiment of the present invention. The present invention provides a cover for gesture recognition, comprising a body 1 in which a cavity is provided. Preferably, the cavity is an inverted funnel-shaped cavity 4, and the cavity 4 can also be square. , hexagonal, etc.; there is a space between the top of the cavity 4 and the upper surface of the body 1, and a through hole 3 is opened between the top and the bottom, above the through hole 3 An infrared filter is provided which cuts off ultraviolet light and visible light, and transmits infrared light.

Preferably, the through hole 3 is placed at the center of the body 1, and the through hole 3 has a certain length.

Preferably, the body 1 has a rectangular shape.

As a modification of the technical solution, the upper surface of the body is provided with a groove 2 for placing the infrared filter.

As a modification of this technical solution, the height of the through hole 3 is 0.5 mm.

Further, the through hole 3 has a diameter of 0.8 mm.

Further, the bottom of the body 1 is further provided with a positioning post 5. The positioning post 5 is provided with four shapes and has a cylindrical shape.

The cover can be applied to a variety of chips or integrated circuits, and the cover can be placed above the photoelectric sensor, which is very convenient; at the same time, based on the small hole imaging, it is less affected by external ambient light, effectively improving the gesture recognition. effect.

In another aspect, the present invention also provides a gesture recognition based device comprising the cover, further comprising a photosensor, the photosensor being placed at the bottom of the funnel shaped cavity 4.

The invention provides an optical structure cover for space-intercept gesture recognition, the cover is placed above the photoelectric sensor to form a relatively dark environment in the cavity; a small hole is left in the center of the cover to allow light to enter Into the cavity; the small hole is covered with an infrared light transmission filter capable of filtering out ultraviolet light and visible light, which only allows infrared light to enter the cavity through the small hole; through the aperture imaging principle, the external image is Infrared light is projected onto the photosensor; the cover also protects the photosensor wafer from external environmental damage to the photosensor wafer.

Principle of small hole imaging: Light travels along a straight line, and the light-emitting point emits light in all directions. A small beam of light passes straight through the small hole, forming a small spot on the screen opposite to the light-emitting point. When many of the light-emitting points make up an image, an inverted image is formed on the screen through the small holes.

As an embodiment, the present invention adopts the following technical solutions:

(1) A groove having a length, width and height of 6.6 mm*6.6 mm*1 mm at the top of the cover for placing a filter, and filtering the ultraviolet light and the visible light through the filter;

(2) a small round hole of 0.8 mm diameter is opened at the top of the inverted cavity of the inner cavity; the small circular hole is used for light to enter the cavity of the cover and is projected onto the photoelectric sensor; the thickness of the groove of the inner cavity to the top of the cover to the top of the cover is 0.5mm;

(3) The inner cavity height of the cover is 2.8 mm, and the inner cavity is formed into an inverted funnel shape, which is favorable for the light to be uniformly projected onto the photosensitive area on the photoelectric sensor after entering the inner cavity;

(4) There are four cylindrical positioning posts with a diameter of 1.3mm and a height of 1.0mm at the bottom of the cover to facilitate the fixing of the cover to the gesture recognition module.

The gesture recognition-based device provided by the invention combines a cavity to transmit light to the photoelectric sensor through the small hole, so that the interference in the external environment is reduced in the closed space; and the structural design is simple and the cost is saved.

The above is a detailed description of the preferred embodiments of the present invention, but the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the invention. Such equivalent modifications or alternatives are intended to be included within the scope of the claims.

Claims

A cover for gesture recognition includes a body, wherein a cavity is disposed in the body, and a through hole is formed between a top of the cavity and an upper surface of the body, and the through hole is An infrared filter is placed above it.
The gesture recognition based cover of claim 1 wherein said cavity is an inverted funnel shaped cavity.
The gesture recognition based cover according to claim 1, wherein the upper surface of the body is provided with a recess for placing the infrared filter.
The gesture recognition based cover according to claim 1, wherein the through hole has a height of 0.5 mm.
The gesture recognition based cover according to any one of claims 1 to 4, characterized in that the through hole has a diameter of 0.8 mm.
The gesture recognition based cover according to claim 5, wherein the bottom of the body is further provided with a positioning post.
A device for gesture recognition, comprising the cover of any one of claims 1 to 6, further comprising a photosensor, the photosensor being placed at the bottom of the cavity.