CN217404562U

CN217404562U - Lens structure for indoor intelligent scene panel switch

Info

Publication number: CN217404562U
Application number: CN202221706430.1U
Authority: CN
Inventors: 倪嘉辉; 张涵智
Original assignee: Tianjin Aishi Kairui Technology Development Co ltd
Current assignee: Tianjin Aishi Kairui Technology Development Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-09-09
Anticipated expiration: 2032-07-04

Abstract

The utility model provides a lens structure for indoor intelligent scene panel switch, its characterized in that: the lens body comprises a square shape, and the square lens body is divided into an upper visual area and a lower visual area; the upper visual area and the lower visual area respectively comprise a plurality of small blocks, and the small blocks are square lens sheets provided with Fresnel grains and are focused at the induction positions of the pyroelectric sensors. The utility model provides an ingenious fresnel principle that utilizes of lens structure, to the application demand of intelligent scene panel switch, all obtain the increase at the detection angle and the visual area scope that look sideways at the region and overlook the region, control detection angle and can reach 80, and trigger point is many, for satisfying the demand that intelligent scene panel switch surveyed all ring edge borders and providing necessary hardware support, and prevent 0.6 meters high pet wrong report in lens detection distance, improve lens detection accuracy.

Description

Lens structure for indoor intelligent scene panel switch

Technical Field

The utility model belongs to the technical field of the optical accessories, especially, relate to a lens structure for indoor intelligent scene panel switch.

Background

The indoor intelligent scene panel switch is designed more and more perfectly, a passive infrared detection technology is applied to the function, the passive infrared detection technology needs two key elements, namely a pyroelectric infrared sensor PIR and a Fresnel lens, the Fresnel lens has two functions, namely, the pyroelectric infrared signal is refracted (reflected) on the PIR, and the second function is to divide the warning area into a plurality of bright areas and dark areas, so that a mobile object entering the warning area can generate a variable pyroelectric infrared signal on the PIR in a temperature change mode, and the PIR can generate a variable electric signal.

However, the lens structure for the indoor intelligent scene panel switch is single, so that the problems of small detection angle, small visual area range, easy false triggering of pets and the like exist, and the requirement of the intelligent scene panel switch on the human body detection function of the indoor environment cannot be met.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a lens structure for indoor intelligent scene panel switch, through the reasonable subregion overall arrangement of each fresnel lens piece that constitutes lens, realize intelligent scene panel switch to the indoor wide-angle detection response scope, and prevent the pet wrong report in lens detection distance.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a lens structure for an indoor intelligent scene panel switch comprises a square lens body, wherein the square lens body is divided into an upper visual area and a lower visual area, and the height of the upper visual area is smaller than that of the lower visual area; the upper visual area and the lower visual area respectively comprise a plurality of small blocks, the small blocks are square lens sheets provided with Fresnel lines, and the small blocks are focused at the sensing positions of the pyroelectric sensors of the indoor intelligent scene panel.

Furthermore, the small blocks of the upper visual area are arranged in parallel, the two small blocks at the left edge and the right edge of the upper visual area are equal in width, the centers of the concentric circles of the Fresnel lines of the small blocks at the left edge are located on the left lower side, the centers of the concentric circles of the Fresnel lines of the small blocks at the right edge are located on the right lower side, and the centers of the concentric circles of the Fresnel lines of the other small blocks are located on the vertical central line of the upper visual area and are lower than the horizontal central line of the upper visual area.

Furthermore, the small blocks of the lower visual area are arranged in parallel below the upper visual area, the two small blocks at the left edge and the right edge of the lower visual area are equal in width, the centers of the concentric circles of the Fresnel lines of the small blocks at the left edge are deviated to the left upper part, the centers of the concentric circles of the Fresnel lines of the small blocks at the right edge are deviated to the right upper part, and the centers of the concentric circles of the Fresnel lines of the other small blocks are all positioned on the vertical central line of the small blocks and are higher than the horizontal central line of the small blocks.

Furthermore, the number of the upper visual area small blocks is equal to that of the lower visual area small blocks, the upper visual area small blocks and the lower visual area small blocks are arranged in a one-to-one correspondence mode, the width of the corresponding two small blocks is equal to that of the corresponding two small blocks, and the height of the lower visual area small blocks is larger than that of the upper visual area small blocks.

Further, the number of the cell blocks of the upper view area and the lower view area is 3.

Compared with the prior art, a lens structure for indoor intelligent scene panel switch have following advantage:

the utility model provides an ingenious fresnel principle that utilizes of lens structure to the application demand of intelligent scene panel switch, all obtains the increase at the detection angle and the visual area scope of looking sideways at the region and overlooking the region, and detection angle can reach 60 from top to bottom, and the trigger point is many to prevent the high pet wrong report of 0.6 meters in the detection distance, satisfy intelligent scene panel switch and to the human accurate demand of surveying of indoor environment.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic view of a lens structure for an indoor intelligent scene panel switch according to an embodiment of the present invention;

description of the reference numerals:

1-upper viewing zone; 2-lower viewing zone.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The utility model discloses be applied to indoor intelligent scene panel switch, the positive outside indoor environment of surveying of the lens in the panel, the back then focuses on in pyroelectric sensor, constitutes infrared detection jointly. The utility model discloses the environment of using does: the detection position of the lens is 1.5 m high, the inclination angle is 0 degrees, the ambient temperature is 25 degrees, and the human body walks about 1 m/s.

As shown in figure 1, the lens structure for the indoor intelligent scene panel switch is a rectangular surface formed by longitudinally arranging and combining an upper large area and a lower large area in a plane and is matched with 1 PIR to form a detection structure with a large angle and a large visual area range. The lens comprises a square lens body, wherein the square lens body is divided into an upper visual area 1 and a lower visual area 2, and the height of the upper visual area 1 is smaller than that of the lower visual area 2. Go up visual area 1, look district 2 down and include 3 little blocks separately, the square lens piece of little block all for being provided with fresnel line, and all focus on the induction position of indoor intelligent scene panel's heat release electric sensor, the utility model discloses in, go up visual area and look district detection distance down and all be 3 meters. The concrete description is as follows:

a, 3 small blocks of the upper visual area 1 are arranged in parallel from left to right and have an optical included angle of 80 degrees, the 3 small blocks are equal in height, two small blocks at the left edge and the right edge are equal in width, and the widths of the small blocks at the left edge and the right edge are larger than the width of the small block in the middle. In these 3 little blocks, the concentric circles center of the fresnel line of the little block of edge of the left side is below left side, and the concentric circles center of the fresnel line of the little block of edge of the right side is below right side, improves the horizontal induction angle of last visual region for go up visual region optics contained angle and reach 80, the concentric circles center of the fresnel line of the little block in the middle of 3 little blocks all is located self vertical center line, and is less than self horizontal center line.

b, the 3 small blocks of the lower visual area 2 are arranged in parallel under the upper visual area 1, the 3 small blocks of the lower visual area 2 have the same height, the 3 small blocks of the lower visual area 2 correspond to the 3 small blocks of the upper visual area 1 one by one, and the corresponding two small blocks have the same width. In the 3 small blocks of the lower visual area, the centers of the concentric circles of the Fresnel lines of the left edge small block are arranged on the upper left side, the centers of the concentric circles of the Fresnel lines of the right edge small block are arranged on the upper right side, and the centers of the concentric circles of the Fresnel lines of the middle small block are arranged on the vertical central line of the middle small block and are higher than the horizontal central line of the middle small block. In the lens structure, because the height of the small block of the lower visual area 2 is larger than that of the small block of the upper visual area, the detection distance of the lower visual area is farther, the detection angle of the lower visual area 2 is correspondingly reduced, and the optical included angle of the lower visual area can reach 70 degrees.

In the lens structure, the height of the lower visual area 2 is larger than that of the upper visual area 1, so that the lens can prevent the pet misinformation with the height of 0.6 m, and the accuracy of the lens in detecting a human body is improved.

Among the lens structure, go up the visual area and down in the visual area the concentric circles centre of a circle of the fresnel line of left and right marginal little block all be located the perpendicular central line outside of self, improve lens optics contained angle size, and go up the concentric circles centre of a circle of the fresnel line of 1 each little block of visual area and all be less than self horizontal central line, the concentric circles centre of a circle of the fresnel line of 2 each little blocks of visual area all exceeds self horizontal central line down, has improved the spotlight ability of lens. The utility model discloses increased lens to indoor detection scope, the detection performance is superior to other products of the same kind.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a lens structure for indoor intelligent scene panel switch which characterized in that: the lens comprises a square lens body, wherein the square lens body is divided into an upper visual area (1) and a lower visual area (2), and the height of the upper visual area (1) is smaller than that of the lower visual area (2); the upper visual area (1) and the lower visual area (2) respectively comprise a plurality of small blocks, the small blocks are square lens sheets provided with Fresnel grains, and the small blocks are focused at the induction positions of the pyroelectric sensors of the indoor intelligent scene panel.

2. The lens structure for an indoor intelligent scene panel switch of claim 1, wherein: the upper visual area (1) is characterized in that the small blocks are arranged in parallel, the left edge small block and the right edge small block are equal in width, the center of a concentric circle of Fresnel lines of the left edge small block is deviated to the left lower side, the center of a concentric circle of Fresnel lines of the right edge small block is deviated to the right lower side, and the centers of concentric circles of Fresnel lines of other small blocks are all located on a vertical central line of the upper visual area and are lower than a horizontal central line of the upper visual area.

3. The lens structure for an indoor intelligent scene panel switch of claim 1, wherein: the small blocks of the lower visual area (2) are arranged in parallel under the upper visual area (1), the two small blocks at the left edge and the right edge of the lower visual area are equal in width, the centers of the concentric circles of the Fresnel lines of the small blocks at the left edge are on the left upper side, the centers of the concentric circles of the Fresnel lines of the small blocks at the right edge are on the right upper side, and the centers of the concentric circles of the Fresnel lines of the other small blocks are all located on the vertical central line of the lower visual area and are higher than the horizontal central line of the lower visual area.

4. The lens structure for an indoor intelligent scene panel switch of claim 1, wherein: the number of the small blocks of the upper visual area (1) is equal to that of the small blocks of the lower visual area (2), the small blocks are arranged in a one-to-one correspondence mode, and the width of the corresponding two small blocks is equal.

5. The lens structure for an indoor intelligent scene panel switch of claim 4, wherein: the number of the small blocks of the upper visual area (1) and the lower visual area (2) is 3.