CN210899392U - Recording device for experimental examination - Google Patents

Abstract

The utility model provides an experimental examination recording device, which comprises a camera shooting unit; the upper end of the telescopic bracket is suitable for being fixed on the top wall of a classroom; the cross bar is fixed at the bottom of the telescopic bracket; the camera shooting unit is arranged on the cross rod through a first fixing piece. The utility model has the advantages of small volume, less change, low cost, etc.

Description

Recording device for experimental examination

Technical Field

The utility model relates to a laboratory, in particular to device is recorded in experiment examination.

Background

With the requirement of national innovative talent training, higher requirements are provided for experimental teaching, and each school section must complete the specified experimental teaching content and bring the experimental examination score into the scores of high school graduate and junior high school. Therefore, higher requirements are put on the examination function of the laboratory.

The experimental examination is carried out on junior high school graduates and high school schools, different from examination papers of other subjects, the preset experimental tasks are completed through on-site experimental operation of examinees, and experimental reports are provided, wherein the experimental examination needs not to be a certain answer result, but needs to be the operation capability and the experimental normative of students in the experimental process, so that the experimental examination has instantaneity and non-repeatability. At present, during experimental examinations, a large number of subject teachers with professional ability are required to carry out on-site invigilation and on-site scoring, each teacher generally needs to take charge of scoring of 4-6 examinees, and sometimes, the professional subject teachers are insufficient and need to call other subject teachers to carry out invigilation scoring work after temporary training. Therefore, the invigilator is stressed by a large number of scoring factors, is influenced by the degree of importance of parents to the upgradable scores, has the defects of on-site invigilation and on-site scoring and cannot be consulted again, so that the contradiction of the experimental examination is very prominent, and the seriousness and the fairness of the experimental examination are greatly challenged and are also questioned by the parents of vast examinees. Therefore, the method is a preferred mode at present by recording the experiment operation video of each examinee by shooting and collecting teachers to perform online reading and scoring. Therefore, the problem that a special teacher is insufficient is solved, meanwhile, the special teacher can be used for grading more clearly and more carefully, the important points can be checked repeatedly, the unfair results such as wrong watching, missing watching or grading deviation caused by factors such as visual angle, instant passing through operation, more examinees and the like in field grading are thoroughly avoided, and once the report is reported, the various contradictions are caused. Therefore, the mode of recording videos and reading scores in the experimental examination becomes the preferred mode at present, and the laboratory has the function of recording the examination inevitably.

At present, most laboratories do not have the function of recording video of experimental examinations, and new requirements can be met only by newly building or reconstructing the original laboratory.

However, through the thin change and thin change projects, a large amount of funds are already invested in and are matched with common laboratory equipment, and the laboratories do not have the video recording function due to the current construction standard, so that the large amount of funds need to be invested in the comprehensive reconstruction, the national situation is not practical, and how to utilize the original laboratory to transform the laboratory into a novel laboratory with the examination function can save a large amount of funds, greatly improve the teaching efficiency of the laboratory and have certain practical significance.

To increase the video function of recording in original laboratory, must increase the camera in the certain height of top in front of every laboratory table for shoot examinee experiment operation video, the installation camera needs the power in addition, still must have the network, considers stability, must use wired network, guarantees the reliability of transmission, and these all need lay again. Most of the ground surfaces of the original laboratories are paved with floor tiles and hardened, and if the ground surfaces are cut open, the pipeline is constructed and installed again, so that the engineering is expensive, and many original implementation or floor structures are damaged. If the newly added line is laid on the ground surface, the appearance is not beautiful, walking obstacles are caused, and the experiment and the in-and-out safety of students are influenced.

The position of installation camera is not reserved to current experiment table, if direct mount at the desktop, considers the visual angle, will support the camera in the desktop pole setting, not only influences exchanging between experiment operation and the student at ordinary times like this, also is easily damaged by the collision.

If invest again, all change professional laboratory tables that have the examination function, lay power and net twine again in underground, not only the cost is too high, eliminates original equipment also very extravagant.

SUMMERY OF THE UTILITY MODEL

For solving not enough among the above-mentioned prior art scheme, the utility model provides a device is recorded in experiment examination that occupies small, the original laboratory changes for a short time, reforms transform with low costs.

The utility model aims at realizing through the following technical scheme:

an experimental examination recording device comprises a camera shooting unit; the recording device for the experimental examination further comprises:

the upper end of the telescopic bracket is suitable for being fixed on the top wall of a classroom;

the cross rod is fixed at the bottom of the telescopic bracket;

the camera shooting unit is arranged on the cross rod through the first fixing piece.

Compared with the prior art, the utility model discloses the beneficial effect who has does:

1. the occupied volume is small;

the telescopic bracket is fixed on the roof and is descended according to requirements through manpower or electric power: the device descends during the experimental examination and ascends after the examination is finished, so that the passing of personnel is not influenced, and the occupied volume is small;

2. the change is small;

the existing configuration of an original laboratory is not required to be changed, only the telescopic frame is required to be installed on the roof, the camera shooting unit (and the tablet personal computer) are fixed on the support, a circuit is not required to be laid on the ground, and other components are not required to be installed on the experiment table;

3. the modification cost is low;

the telescopic support, the camera unit, the tablet computer and the like are all existing devices in the field, and only the telescopic support is fixed on a roof, so that the modification cost is low, and the device is suitable for being applied to modification of an original laboratory.

Drawings

The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are only intended to illustrate the technical solution of the present invention and are not intended to limit the scope of the present invention. In the figure:

fig. 1 is a schematic structural diagram of an experimental examination recording device according to an embodiment of the present invention.

Detailed Description

Fig. 1 and the following description depict alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. For the purpose of teaching the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations or substitutions from these embodiments that will be within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Accordingly, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.

Example 1:

fig. 1 schematically shows the structure diagram of the device is recorded in the experiment examination of the embodiment of the present invention, as shown in fig. 1, the device is recorded in the experiment examination includes:

a camera unit 41, such as a camera;

a telescopic bracket 21, such as a scissor lift unit, the upper end of the telescopic bracket 21 being adapted to be fixed to the ceiling 11 of a classroom; the telescopic bracket is the prior art in the field, and the specific structure and the working mode are not described again;

the cross bar 31 is fixed at the bottom of the telescopic bracket 21;

the first fixing piece, such as a hoop, and the camera shooting unit is arranged on the cross rod through the first fixing piece.

In order to compensate for insufficient illumination, the recording device for the experimental examination further comprises:

and the light supplement lamp 51 is arranged on the cross bar 31, and the light supplement lamp 51 is arranged on the cross bar 31.

In order to ensure that the examinee is not interfered by the outside world, further, the recording device for the experimental examination further comprises:

and the partition plates 61 are arranged on the transverse rod 31 and used for isolating adjacent examination positions.

In order to realize the identity confirmation of the examinee and the generation and submission of the experiment report, the experiment examination recording device further comprises:

the tablet personal computer is arranged on the cross rod;

and the tablet personal computer is arranged on the cross rod through the second fixing piece.

Example 2:

according to the utility model discloses the application example of device is recorded in experimental examination of embodiment 1.

In the application example, the telescopic support adopts an electric scissor differential type lifting platform, the bottom end of the telescopic support is fixedly provided with a first cross rod and a second cross rod which are arranged in front and at back, two cameras are fixedly arranged on the second cross rod through anchor ears, and the two cameras are opposite to the experiment for recording videos and audios and uploading the videos and audios to a server; the light supplementing lamp is fixed on the second cross rod to make up for the deficiency of light intensity; the tablet personal computer is fixed on the first cross rod through two folding connecting rod supports with damping; the tablet personal computer has the functions of examinee identity confirmation (examination face acquisition), login (examination number and password), experiment report generation and submission and the like; the baffle is fixed on the horizontal pole, prevents to disturb between the examinee.

The above embodiments are only examples of the telescopic bracket using a scissor-type lifting platform, but other technical means, such as a telescopic lifting unit, are also possible.

Claims (6)

1. An experimental examination recording device comprises a camera shooting unit; the method is characterized in that: the recording device for the experimental examination further comprises:

the upper end of the telescopic bracket is suitable for being fixed on the top wall of a classroom;

the cross rod is fixed at the bottom of the telescopic bracket;

the camera shooting unit is arranged on the cross rod through the first fixing piece.

2. The experimental examination recording apparatus of claim 1, wherein: the recording device for the experimental examination further comprises:

and the light supplement lamp is arranged on the cross rod.

3. The experimental examination recording apparatus of claim 1, wherein: the first fixing piece adopts a hoop.

4. The experimental examination recording apparatus of claim 1, wherein: the recording device for the experimental examination further comprises:

the baffle, the baffle sets up on the horizontal pole, keep apart adjacent examination position.

5. The experimental examination recording apparatus of claim 1, wherein: the recording device for the experimental examination further comprises:

the tablet personal computer is arranged on the cross rod;

and the tablet personal computer is arranged on the cross rod through the second fixing piece.

6. The experimental examination recording apparatus of claim 1, wherein: the telescopic support adopts a scissor differential type lifting unit or a sleeve type lifting unit.

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