CN212324227U

CN212324227U - Blackboard writing positioning camera

Info

Publication number: CN212324227U
Application number: CN202021560584.5U
Authority: CN
Inventors: 杨敏
Original assignee: Sichuan Guangwei Technology Co ltd
Current assignee: Sichuan Guangwei Technology Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-01-08
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a blackboard-writing positioning camera, which comprises two vertical linear moving modules, wherein the two vertical linear moving modules are respectively arranged at two sides of a blackboard, and a horizontal linear moving module is arranged between sliders of the two vertical linear moving modules; a support piece is arranged on a sliding block of the horizontal linear moving module, an installation seat is arranged at the end part of the support piece, a tracking camera and a blackboard-writing camera for shooting a blackboard are arranged at the bottom of the installation seat, and the tracking camera is vertically downward; and a control button is arranged beside the vertical linear moving module and comprises a switch button, an ascending button and a descending button. This scheme is used for the teacher teaching time, carries out the video recording to mr's blackboard writing, can be in real time to mr's blackboard writing location tracking, no matter mr writes in the any position of blackboard, and the accurate blackboard writing position of tracking location mr of homoenergetic carries out the tracking video recording.

Description

Blackboard writing positioning camera

Technical Field

The utility model relates to an intelligent teaching technical field, concretely relates to blackboard writing location camera.

Background

In order to improve the ability of teachers and students in schools to apply information technology, promote the balance development of basic education, combine the guidelines of teaching informatization construction issued by the education department, construct a digital cloud recording and broadcasting teaching system, effectively accelerate the construction of basic education informatization facilities systems of colleges and secondary schools, and be beneficial to promoting the construction and sharing action of high-quality digital education resources, implementing the promotion of the education technical ability of teachers, and continuously improving the popularization and application level of education informatization, so that the information technology can better serve modern education.

The recording and playing system integrates and synchronously records the video and audio shot and recorded on site to generate a standardized streaming media file for external live broadcasting, storage, later editing or on-demand playing and the like. The recording and broadcasting system is applied to teaching, teaching courses of teachers are collected and recorded in a computer hard disk in a multi-azimuth mode through the camera, students or teachers can watch video files, and the students and teachers can learn conveniently.

The location can't be trailed according to mr's blackboard writing to current recorded broadcast camera, and mr's blackboard writing can't be seen to the video recording of shooting then, and mr can shelter from blackboard writing at the in-process of lecture simultaneously, leads to the unable complete shooting blackboard writing content of camera.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned among the prior art not enough, the utility model provides an accurate blackboard writing location camera fixes a position.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

the blackboard-writing positioning camera comprises two vertical linear moving modules, wherein the two vertical linear moving modules are respectively arranged on two sides of a blackboard, and a horizontal linear moving module is arranged between sliding blocks of the two vertical linear moving modules; a support piece is arranged on a sliding block of the horizontal linear moving module, an installation seat is arranged at the end part of the support piece, a tracking camera and a blackboard-writing camera for shooting a blackboard are arranged at the bottom of the installation seat, and the tracking camera is vertically downward;

the other control button that is provided with of vertical rectilinear movement module, control button include shift knob, rise button and decline button, and shift knob, rise button, decline button, vertical rectilinear movement module and horizontal rectilinear movement module all are connected with the controller electricity, and blackboard writing camera and tracking camera all are connected with the video recording host computer electricity.

The utility model has the advantages that: this scheme is used for the teacher teaching time, carries out the video recording to mr's blackboard writing, can be in real time to mr's blackboard writing location tracking, no matter mr writes in the any position of blackboard, and the accurate blackboard writing position of tracking location mr of homoenergetic carries out the tracking video recording.

Blackboard writing camera is used for shooting mr's blackboard writing on the blackboard, tracks the camera and is located mr's head directly over for gather mr's image, when mr writes, follow the position that mr removed and remove. Before class, through the height of rising button and decline button adjustment mount pad, adapt to the mr of different heights, avoid sheltering from the position that the mr can write, ensure simultaneously that the video recording is clear, make the blackboard-writing camera as far as possible more closely from the blackboard-writing position. The switch button is used for controlling the on and off of the whole camera. When not in use, the horizontal linear moving module moves to the topmost part, so that the blackboard is convenient to clean.

Drawings

Fig. 1 is a front view of a blackboard-writing positioning camera.

Fig. 2 is a side view of a blackboard-writing positioning camera.

Fig. 3 is a structural view of the damper device.

Wherein: 1. vertical rectilinear movement module, 2, horizontal rectilinear movement module, 3, extension rod, 4, slide cartridge, 5, spring, 6, mount pad, 7, support, 8, tracking camera, 9, blackboard writing camera, 10, the button that rises, 11, shift knob, 12, nut, 13, articulated shaft, 14, carousel, 15, articulated seat, 16, telescopic link, 17, infrared induction sensor, 18, limit switch.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1 to 3, the blackboard-writing positioning camera of the present scheme includes two vertical linear moving modules 1, the two vertical linear moving modules 1 are respectively installed on the walls on both sides of the blackboard, and a horizontal linear moving module 2 is arranged between the sliders of the two vertical linear moving modules 1; be provided with support piece on the slider of horizontal rectilinear movement module 2, support piece's tip is provided with mount pad 6, and the bottom of mount pad 6 is installed through support 7 and is tracked camera 8 and the blackboard-writing camera 9 of shooting the blackboard, and it is vertical downwards to track camera 8.

The other control button that is provided with of vertical rectilinear movement module 1, control button include shift knob 11, rise button 10 and decline button, and shift knob 11, rise button 10, decline button, vertical rectilinear movement module 1 and horizontal rectilinear movement module 2 all are connected with the controller electricity, and blackboard writing camera 9 and tracking camera 8 all are connected with the video recording host computer electricity, and the controller is connected with the video recording host computer electricity.

The controller adopts a C51 singlechip, the controller is installed in a control box below a control button, the video recording host adopts a VGAIC 8 machine position interactive recording and broadcasting all-in-one machine 1-path HDMI + 6-path 3GSDI + 1-path network stream input director, carries an ORB-SLAM2 primary (tracking module), and outputs the camera pose in real time according to the image frame input by the camera or the video.

This scheme is used for the teacher teaching time, carries out the video recording to mr's blackboard writing, can be in real time to mr's blackboard writing location tracking, no matter mr writes in the any position of blackboard, and the accurate blackboard writing position of tracking location mr of homoenergetic carries out the tracking video recording.

Blackboard writing camera 9 is used for shooing the blackboard writing of mr on the blackboard, and it is just preventing to trail camera 8 and be located mr's head for gather mr's image, when mr writes, remove about following mr's removal. Before class, the height of the camera is adjusted through the ascending button 10 and the descending button, the blackboard-writing desk adapts to teachers with different heights, the position where the teachers can write is prevented from being shielded, the video is clear, and the blackboard-writing camera 9 is enabled to be closer to the blackboard-writing position as far as possible. The switch button 11 is used for controlling the whole camera to be switched on and off. When not using, horizontal rectilinear movement module 2 removes to the topmost, is convenient for clear up the blackboard.

The support piece of this scheme includes horizontal extension rod 3, and the tip of extension rod 3 is provided with damping device, and mount pad 6 is installed on damping device. The vibration damping device plays a role in vibration damping, and can filter vibration in the process of moving the two cameras left and right, so that the shot video is prevented from shaking.

The damping device comprises a sliding barrel 4, an expansion rod 16 is movably arranged in the sliding barrel 4, a mounting seat 6 is fixed on the expansion rod 16, a spring 5 is arranged between the end part of the sliding barrel 4 and the mounting seat 6, and the expansion rod 16 is sleeved with the spring 5. In the vibration damping process, the telescopic rod 16 slides in the sliding barrel 4, the spring 5 provides elasticity, the mounting seat 6 is enabled to move stably, and the vibration damping device is stable and reliable.

The sliding barrel 4 is hinged on a hinge seat 15 arranged at the end part of the telescopic rod 16, one end of a hinge shaft 13 on the hinge seat 15 is provided with a rotary table 14, the other end is provided with a nut 12, and the nut 12 is in threaded connection with the hinge shaft 13. Articulated seat 15 is locked through the cooperation of articulated shaft 13 with nut 12 to the accessible rotates 14 loosening articulated seat 15 of carousel, conveniently takes off whole mount pad, maintains and maintains two cameras.

And both ends of the horizontal linear moving module 2 are provided with limit switches 18, and the limit switches 18 are electrically connected with the controller. The limit switch 18 is used for limiting the left and right moving positions of the sliding block on the horizontal linear moving module 2 to avoid excessive movement, and the limit switch 18 adopts a YBLX-ME-8108 roller rocker arm type limiter.

Be provided with the height scale mark on the shell body of vertical rectilinear movement module 1, the height scale mark is used for highly referring to the mount pad adjustment, makes the highly adapted mr's of two cameras height, and when the mr writes in comfortable position, the shooting that blackboard writing camera 9 can be accurate.

The bottom of mount pad 6 is provided with infrared inductive sensor 17, and infrared inductive sensor 17 is connected with the controller electricity. Infrared induction sensor 17 is used for the response to track whether have the mr to write in 8 below cameras, and only when the mr stands and begins to write in the below of making a video recording of tracking, two cameras just start, practice thrift the electric energy. The ir sensor 17 may be implemented as a diffuse reflection ir photoelectric switch of E3K series.

Claims

1. The blackboard-writing positioning camera is characterized by comprising two vertical linear moving modules (1), wherein the two vertical linear moving modules (1) are respectively arranged at two sides of a blackboard, and a horizontal linear moving module (2) is arranged between sliding blocks of the two vertical linear moving modules (1); a support piece is arranged on a sliding block of the horizontal linear moving module (2), an installation seat (6) is arranged at the end part of the support piece, a tracking camera (8) and a blackboard writing camera (9) for shooting a blackboard are arranged at the bottom of the installation seat (6), and the tracking camera (8) is vertically downward;

the other control button that is provided with of vertical rectilinear movement module (1), control button includes shift knob (11), rise button (10) and decline button, shift knob (11), rise button (10), decline button, vertical rectilinear movement module (1) and horizontal rectilinear movement module (2) all are connected with the controller electricity, blackboard writing camera (9) and tracking camera (8) all are connected with the video recording host computer electricity, the controller is connected with the video recording host computer electricity.

2. Blackboard-writing positioning camera according to claim 1, characterised in that the support comprises a horizontal elongated rod (3), the end of which rod (3) is provided with a damping device, on which the mounting seat (6) is provided.

3. The blackboard-writing positioning camera according to claim 2, characterized in that the vibration damper includes a sliding cylinder (4), an expansion link (16) is movably disposed in the sliding cylinder (4), the mounting seat (6) is fixed on the expansion link (16), a spring (5) is disposed between the end of the sliding cylinder (4) and the mounting seat (6), and the spring (5) is sleeved on the expansion link (16).

4. The blackboard-writing positioning camera according to claim 3, characterized in that the sliding cylinder (4) is hinged on a hinge seat (15) arranged at the end of the telescopic rod (16), a rotary disc (14) is arranged at one end of a hinge shaft (13) on the hinge seat (15), a nut (12) is arranged at the other end of the hinge shaft, and the nut (12) is in threaded connection with the hinge shaft (13).

5. The blackboard-writing positioning camera according to claim 1, characterized in that both ends of the horizontal linear movement module (2) are provided with limit switches (18), and the limit switches (18) are electrically connected with a controller.

6. The blackboard-writing positioning camera according to claim 1, characterized in that the outer shell of the vertical linear movement module (1) is provided with height graduation lines.

7. The blackboard-writing positioning camera head according to claim 1, characterized in that an infrared induction sensor (17) is mounted at the bottom of the mounting seat (6), and the infrared induction sensor (17) is electrically connected with a controller.