CN215010529U

CN215010529U - Projection image detection device

Info

Publication number: CN215010529U
Application number: CN202120399369.XU
Authority: CN
Inventors: 农忠海; 韦继良; 颖斌; 罗海明; 覃锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-12-03
Anticipated expiration: 2031-02-23

Abstract

The utility model discloses a projection image detection device, which comprises a device main body, wherein a control system is arranged in the device main body, a plurality of moving blocks are arranged at the inner side of the device main body, a moving rod is arranged at the inner side between every two moving blocks, projection cloth is wound between the two moving rods, a rotating shaft is arranged at the rear end of the device main body, a limiting sleeve is welded at the rear end of the rotating shaft, a support column is arranged at the inner side of the limiting sleeve, and a bottom plate is arranged at the lower end of the support column; this practicality carries out simple image acquisition through the CCD camera that sets up to the image that will acquire is changed into digital signal, conveniently saves and image analysis, can preserve the image of projecting apparatus, and the in-process still assists through the test card of seting up and carries out the figure detection, carries out contrastive analysis according to the pixel of figure and original graphic file, and the analysis effect is more accurate.

Description

Projection image detection device

Technical Field

The utility model relates to a projection field specifically is a projection image detection device.

Background

Projection refers to the projection of the shape of an object onto a plane with a set of rays, called "projection". The image obtained on this plane is also called "projection". The projection can be divided into a forward projection and an oblique projection. The orthographic projection is a plane in which the center line of the projection line is perpendicular to the projection plane, and the projection center line is not perpendicular to the projection plane, and is called oblique projection.

Whether the projected image is normal or not and whether the projection position has slight change or not usually need to be detected when the projected image is projected, and the existing projected image detection device has certain problems:

the existing projection image detection device can only detect the position of an image simply, the detection is usually carried out at the edge of the image, the detection is carried out according to the light transmission amount, the detection effect is poor, and the detection is relatively troublesome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a projection image detection device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a projection image detection device, includes the device main part, control system has been seted up to the inside of device main part, a plurality of movable blocks have been seted up to the inboard of device main part, per two equal inboard has seted up the carriage release lever between the movable block, two the winding has projection cloth between the carriage release lever, the pivot has been seted up to the rear end of device main part, the rear end welding of pivot has the stop collar, the support column has been seted up to the inboard of stop collar, the bottom plate has been seted up to the lower extreme of support column.

Preferably, the control system comprises a wireless module, a speaker, an integrated component, a PCB control board, an image processing module, a central processing unit and a storage module.

Preferably, the image processing module comprises a test card, a lens module, a graphic position module, a CCD camera and an image analysis module.

Preferably, the wireless module, the speaker, the integrated component, the central processing unit and the storage module are integrated on the outer surface of the PCB control panel in a tin plating mode.

Preferably, the test card is arranged on the inner side of the projection cloth, the lens module is arranged on the inner side of the test card, the CCD camera is arranged on the inner side of the lens module, and the CCD camera is electrically connected with the image analysis module and the graph position module.

Preferably, the projection cloth is made of uniform transparent materials, and the limiting sleeve and the supporting column are fixed through bolts.

Compared with the prior art, the beneficial effects of the utility model are that:

carry out simple image through the CCD camera that sets up and acquire to the image that will acquire is changed into digital signal, conveniently saves and image analysis, and through the image processing module who sets up, can preserve the image of projecting apparatus in addition, the in-process still assists through the test card of seting up and carries out the figure detection, carries out contrastive analysis according to the pixel and the original graphic file of figure, and the analysis effect is more accurate, conveniently uses, and simple structure possesses certain beneficial effect.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic diagram of the operation of the present invention;

fig. 4 is a working schematic diagram of the image processing module of the present invention.

In the figure: 10-a device body; 11-a moving block; 12-a moving bar; 13-projection cloth; 14-a support column; 15-a base plate; 16-a stop collar; 17-a rotating shaft; 20-a control system; 21-a wireless module; 22-a loudspeaker; 23-an integrated component; 24-a PCB control board; 25-an image processing module; 251-a test card; 252-a lens module; 253-graphic position module; 254-CCD camera; 255-an image analysis module; 26-a central processing unit; 27-memory module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, a projection image detection device includes a device main body 10, a control system 20 is disposed inside the device main body 10, a plurality of moving blocks 11 are disposed inside the device main body 10, moving rods 12 are disposed inside each of the two moving blocks 11, projection cloth 13 is wound between the two moving rods 12, a rotating shaft 17 is disposed at the rear end of the device main body 10, a limiting sleeve 16 is welded at the rear end of the rotating shaft 17, a supporting column 14 is disposed inside the limiting sleeve 16, and a bottom plate 15 is disposed at the lower end of the supporting column 14.

The control system 20 comprises a wireless module 21, a speaker 22, an integrated component 23, a PCB control board 24, an image processing module 25, a central processing unit 26 and a storage module 27, the image processing module 25 includes a test card 251, a lens module 252, a graphic position module 253, a CCD camera 254 and an image analysis module 255, the wireless module 21, the speaker 22, the integrated component 23, the central processor 26 and the storage module 27 are integrated on the outer surface of the PCB control board 24 by tin plating, the test card 251 is arranged on the inner side of the projection cloth 13, the lens module 252 is arranged on the inner side of the test card 251, the CCD camera 254 is located inside the lens module 252, the CCD camera 254 is electrically connected to the image analysis module 255 and the graphic position module 253, the projection cloth 13 is made of uniform transparent materials, and the limiting sleeve 16 and the supporting column 14 are fixed through bolts.

The working principle is as follows: when in use, the projection lens of the projector is aligned with the projection cloth 13, the height of the projection cloth 13 is adjusted by the movable block 11 and the movable rod 12, the width is adjusted by the structures with different specifications, or directly adopts a method of blocking the board, in the process, the light of the projector enters the projection cloth 13, the projection cloth 13 is mapped, the test card 251 forms the combination of the patterns, at this time, the lens module 252 obtains the superposed patterns, and performs photographing and data conversion through the CCD camera 254, the data is subjected to graphic analysis through the image analysis module 255, the graph dislocation is judged according to the comparison between the graph dislocation in the image and the original graph, and the graph with the dislocation is judged to be the vertical dislocation or the transverse dislocation through the graph position module 253, so that the adjustment is convenient, the structure is simple, and certain beneficial effects are achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A projection image detection apparatus including an apparatus main body (10), characterized in that: the device is characterized in that a control system (20) is arranged inside the device main body (10), a plurality of moving blocks (11) are arranged on the inner side of the device main body (10), moving rods (12) are arranged on the inner sides of every two moving blocks (11), projection cloth (13) is wound between every two moving rods (12), a rotating shaft (17) is arranged at the rear end of the device main body (10), a limiting sleeve (16) is welded at the rear end of the rotating shaft (17), a supporting column (14) is arranged on the inner side of the limiting sleeve (16), and a bottom plate (15) is arranged at the lower end of the supporting column (14).

2. The projection image detection apparatus according to claim 1, characterized in that: the control system (20) comprises a wireless module (21), a loudspeaker (22), an integrated component (23), a PCB control panel (24), an image processing module (25), a central processing unit (26) and a storage module (27).

3. A projected image detection apparatus according to claim 2, characterized in that: the image processing module (25) comprises a test card (251), a lens module (252), a graphic position module (253), a CCD camera (254) and an image analysis module (255).

4. A projected image detection apparatus according to claim 3, characterized in that: the wireless module (21), the loudspeaker (22), the integrated element (23), the central processing unit (26) and the storage module (27) are integrated on the outer surface of the PCB control panel (24) in a tin plating mode.

5. A projected image detection apparatus according to claim 3, characterized in that: the testing card (251) is arranged on the inner side of the projection cloth (13), the lens module (252) is located on the inner side of the testing card (251), the CCD camera (254) is located on the inner side of the lens module (252), and the CCD camera (254) is electrically connected with the image analysis module (255) and the graph position module (253).

6. The projection image detection apparatus according to claim 1, characterized in that: the projection cloth (13) is made of uniform transparent materials, and the limiting sleeve (16) and the supporting column (14) are fixed through bolts.