CN210091450U

CN210091450U - Teaching aid

Info

Publication number: CN210091450U
Application number: CN201920418978.8U
Authority: CN
Inventors: 刘德建; 汪松; 郭玉湖; 陈宏�; 方振华; 关胤
Original assignee: Fujian Tianquan Educational Technology Ltd
Current assignee: Fujian Tianquan Educational Technology Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-02-18
Anticipated expiration: 2029-03-29

Abstract

The utility model provides a teaching aid, includes the main part of tubular structure, the main part cavity, the first end opening of main part, the second end is for sealing or half opening, the second end still includes the infrared emission unit that sets up towards the outside, infrared emission unit is used for forming the facula of infrared formation of image on the object surface when being close to the object. The technical effect that the light spot can be emitted only when the light spot is positioned close enough can be achieved by the technical scheme.

Description

Teaching aid

Technical Field

The utility model relates to an optical signal control field especially relates to a teaching aid that can send infrared light as surveyed signal.

Background

In the existing video shooting and interaction field, the shot picture can be directly shared by combining the development of the communication technology, but a means for interacting with a receiver sharing the picture through optical information is lacked, if a signal, such as infrared light and the like, can be directly sent to a camera through a handheld device so as to obtain an optical signal of the handheld device through the camera, functions such as marking, point lifting and the like can be carried out in the picture.

Disclosure of Invention

Therefore, it is necessary to provide a teaching device capable of emitting light captured by a camera.

In order to achieve the above object, the inventor provides a teaching aid, which comprises a main body with a tubular structure, wherein the main body is hollow, a first end of the main body is open, a second end of the main body is closed or semi-open, the second end of the main body further comprises an infrared emission unit arranged towards the outside, and the infrared emission unit is used for forming a light spot for infrared imaging on the surface of an object when the infrared emission unit is close to the object.

Furthermore, a gravity sensor is also arranged and used for controlling the opening or closing of the infrared emission unit.

Specifically, a clamping piece is arranged on the inner side of the opening at the first end of the main body and used for clamping a part matched with the first end, the clamping piece is coupled with a microswitch, and the microswitch is used for controlling the infrared emission unit to be turned on or turned off.

Preferably, the engaging piece is a spring piece.

Optionally, the clamping pieces are protrusions, conductive connectors are respectively arranged at the protrusions of at least two clamping pieces, and the two conductive connectors of the two clamping pieces are respectively connected with two ends of the broken circuit of the branch where the infrared emission unit is located; when the clamping piece is clamped with the component matched with the first end, the conductor arranged in the component matched with the first end can connect the two conductive connectors.

Further, the main body is annular, square, diamond-shaped or oval.

Preferably, the outer surface of the main body is provided with a mark color block or a two-dimensional code in a preset shape.

Different from the prior art, the technical effect that the light spot can be emitted only when the light spot is located close enough can be achieved through the technical scheme.

Drawings

FIG. 1 is a front view of a teaching aid according to an embodiment;

FIG. 2 is a schematic diagram of an embodiment of a gravity sensor;

fig. 3 is an open end view of an embodiment.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Please refer to fig. 1, which is a teaching aid of the present invention, comprising a main body 1 with a tubular structure, wherein the main body is hollow, the cross section of the main body can be annular, square or diamond, oval, etc., a first end 11 of the main body has an opening, and the opening can be annular, square or diamond, oval, etc. The second end 12 of main part is for closing or half opening, the second end still includes the infrared emission unit 13 towards the outside setting, specifically, the transmission angle of infrared emission unit 13 namely the design orientation of infrared emission unit can set up to be, is 0-45 a certain predetermined contained angle with the axis direction of main part. In some specific application examples, when the power of the infrared emitting unit is set to be 0-3 cm away from the surface of the object, an infrared spot with a radius of 0.5-2 cm that can be captured by the camera can be obtained, in this embodiment, when the object is paper, the light emitting power of the infrared emitting unit is set to be 10mW-1W, so that the technical effect that the spot can be emitted only when the object is located close enough can be achieved.

Next, with continued reference to fig. 2, a gravity sensor unit 14 is further provided, and the gravity sensor is used for controlling the on or off of the infrared emission unit. Specifically, the gravity sensor unit is used for sensing the position posture of the teaching aid, or is called a pose sensor, and is used for enabling or disabling the infrared emission unit through the posture of the teaching aid. For example, in the embodiment shown in fig. 2, the gravity sensor unit may select a conventional gyroscope and an analysis chip (not shown) to sense whether the teaching aid is in a posture with the first opening facing upward and the second opening facing downward, and in different postures, the out pin of the chip outputs high and low levels to control the triode switch of the branch where the infrared emission unit is located. Through the scheme, the teaching aid can work only under a specific posture, emits light rays to facilitate the identification of the camera, and can save electric quantity and improve the service life of the whole device when being horizontally placed at other times.

In a further embodiment, referring to fig. 3, it can be seen that a snap-fit member 110 is disposed inside the opening of the first end of the main body, and the snap-fit member is used to snap-fit with a member adapted to the first end, in the embodiment shown in fig. 3, the member adapted to the opening of the first end can be a rod-shaped device, and two ends of the rod-shaped device are used to be inserted into the opening of the first end 11. The engaging member 110 is a protrusion protruding inward from the inner side of the opening, and the two ends of the rod-shaped device are provided with annular grooves matching with the protrusion, thereby achieving the effect of engaging and fixing each other. In order to further achieve the technical effects of controlling the gravity sensor unit and/or the infrared light emitting unit and saving electric energy, the clamping piece can be coupled with the microswitch. Or the gravity sensor unit is designed in a circuit where the gravity sensor unit is located and used for controlling the opening or closing of the gravity sensor unit. When the engaging member is a groove, the microswitch can also be designed in the groove, and the rest arrangement is the same, which is not described herein again.

In some other preferred embodiments, the engaging member is a metal elastic sheet, for example, the elastic sheet of the engaging member may contact another metal member under the engaging member after being pressed, so as to turn on the switch. When the clamping piece is not contacted with other parts, the switch is in a closed state. The function of the switch is as described in the above example. Through the design, the working states of other units can be controlled according to the clamping state of the clamping piece, so that the infrared light-emitting unit and the gravity sensor unit can be controlled to work better, energy is saved, and the technical effect of endurance is improved.

In other embodiments, the engaging member may be a protrusion, and the protrusion may be adapted to a groove on the rod-shaped device. The two conductive connectors of the two clamping pieces are respectively connected with the two ends of the broken circuit of the branch in which the infrared emission unit or the gravity sensor unit is positioned; when the clamping piece is clamped with the component matched with the first end, the conductor arranged in the component matched with the first end can connect the two conductive connectors. The groove at one end of the rod-shaped component can be provided with a conductor, and the groove at the other end of the rod-shaped component is not provided with a conductor, so that the work of the infrared light-emitting unit and the gravity sensor unit can be activated only when the teaching aid is sleeved on one side of the rod-shaped component. Therefore, through the design, the clamping state detection requirement of the teaching aid in the process of being matched with other components can be met by taking the conductor arranged in the rod-shaped device as an example and arranging the conductive connector in the bulge of the clamping piece. The technical effect of working in cooperation with the using state of the rod-shaped device is better achieved.

Preferably, the outer surface of the main body is provided with a marking color block of a preset shape or a 14-dimensional code. The marked color blocks can be set into any special shape, and only need to be easily captured by the camera, the functions of the two-dimensional code are the same, and the technical effects of facilitating the capture of the camera, finding light spots more easily and finding moving tracks more easily are achieved.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the scope of the present invention.

Claims

1. The utility model provides a teaching aid, its characterized in that, includes the main part of tubular structure, the main part cavity, the first end opening of main part, the second end is for sealing or half opening, the second end still includes the infrared emission unit that sets up towards the outside, infrared emission unit is used for forming the facula of infrared formation of image on the object surface when being close to the object.

2. The teaching aid of claim 1, wherein a gravity sensor is further provided for controlling the turning on or off of the infrared emission unit.

3. The teaching aid as claimed in claim 1, wherein a snap-fit member is provided inside the opening of the first end of the main body, the snap-fit member is used for being snapped with a component adapted to the first end, the snap-fit member is coupled with a micro switch, and the micro switch is used for controlling the infrared emission unit to be turned on or off.

4. The teaching aid of claim 3 wherein said engaging member is a resilient tab.

5. The teaching aid as claimed in claim 3, wherein the engaging members are protrusions, and the protrusions of at least two engaging members are respectively provided with a conductive connector, and the two conductive connectors of the two engaging members are respectively connected with two ends of the broken circuit of the branch in which the infrared emission unit is located; when the clamping piece is clamped with the component matched with the first end, the conductor arranged in the component matched with the first end can connect the two conductive connectors.

6. The educational material of claim 1, wherein the body is annular, square, diamond, or oval.

7. The teaching aid as claimed in claim 1, wherein the outer surface of the main body is provided with a mark color block or a two-dimensional code of a preset shape.