Physical, chemical and biological experiment platform
By designing a physics, chemistry and biology experimental platform, using two cameras to capture the entire operation process of students and combining with smart terminals to automatically score, the problems of long assessment cycles and waste of manpower in the existing technology were solved, and efficient and convenient experimental assessment was achieved.
Patent Information
- Application Number
- CN202421464226.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The existing physical, chemical and biology experiment assessment methods cannot achieve the simultaneous examination for everyone, resulting in a long assessment cycle and a large number of teachers invigilating the exam, wasting manpower and energy.
Design a physical, chemical and biological experimental platform, including a base, a bracket and a smart terminal. The two cameras capture the entire student operation through a top view and a second perspective. The smart terminal collects or forwards videos to achieve automatic scoring.
Through the joint acquisition of two cameras, the entire operation process of students can be effectively restored, the teacher’s demand for invigilating exams can be reduced, human resources can be saved, experimental efficiency can be improved, and the intelligent terminal can be automatically scored, reducing the workload of teachers.
Smart Images
Figure CN222943520U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of physical, chemical and biological experimental equipment structures, in particular to a physical, chemical and biological experimental platform. Background Art
[0002] When doing physics, chemistry and biology experiments in existing schools, the experimental materials are placed on the table, and then students start to do the experiments. If it is necessary to evaluate whether the experiments meet the requirements, teachers are generally required to judge with the naked eye. Due to the limited number of teachers, there are usually one or several students in a group, who take turns to do the experiments, and then the teacher gives the students scores based on their operations. This traditional method has the following disadvantages:
[0003] (1) It is not possible for all students to take the exam together, which results in a long assessment cycle;
[0004] (2) One or more teachers are required to monitor every step of the experiment, wasting a lot of manpower and energy.
[0005] With the popularization of AI technology, it is entirely possible to reduce teachers' workload through AI scoring and achieve more convenient and unified assessment. Therefore, it is necessary to develop a physics, chemistry and biology experiment platform to provide hardware support for the implementation of AI technology in physics, chemistry and biology experiments. Utility Model Content
[0006] In order to solve the problems in the prior art, the utility model provides a physical, chemical and biological experiment platform.
[0007] The utility model physical, chemical and biological experiment platform comprises a base, a first bracket arranged on the base, a second bracket and an intelligent terminal arranged on the base, a first camera is arranged on the upper part of the first bracket, a second camera is arranged on the upper part of the second bracket, the first camera is arranged just above a set area, and can shoot a video of the set area from a bird's-eye view, the second camera is arranged below the side of the first camera, and can shoot a video of the set area from a second view, the input end of the intelligent terminal is connected to the output end of the first camera and the output end of the second camera, and collects or forwards the videos collected by the first camera and the second camera,
[0008] The second bracket includes a second vertical bracket arranged vertically and a second horizontal bracket arranged vertically to the second vertical bracket. One end of the second horizontal bracket is connected to the top end of the second vertical bracket, and the other end is rotatably connected to the second camera through a hinge axis for adjusting the angle of the second viewing angle.
[0009] Furthermore, the first bracket includes a first vertical bracket and a first horizontal bracket, one end of the first horizontal bracket is connected to the top of the first vertical bracket, and the other end is provided with a first camera, and the second vertical bracket and the second horizontal bracket, the first vertical bracket and the first horizontal bracket are respectively hinged by a first hinge structure.
[0010] Furthermore, the second vertical bracket and the second horizontal bracket, the first vertical bracket and the first horizontal bracket can be folded and stored respectively through the first hinge structure.
[0011] Furthermore, the first hinge structure includes a hinged first rotating shaft and a rotating shaft seat, the edge of the first rotating shaft is provided with more than one bayonet, the rotating shaft seat is provided with a sliding button, a stop pin linked to the sliding button, and a spring sleeved on the end of the stop pin, the stop pin is provided with a circle of limiting ring, one end of the spring is fixed on the rotating seat, and the other end is limited by the limiting ring, the other end of the stop pin is set toward the first rotating shaft, and the stop pin can be stuck in the bayonet under the action of the spring, when the sliding button is slid, the stop pin is driven to move in the direction away from the first rotating shaft, the spring is compressed, the end of the stop pin leaves the bayonet, the first rotating shaft can rotate relative to the rotating seat, when the sliding button is released, the stop pin moves toward the direction of the first rotating shaft driven by the spring reset, and when the card is engaged with the bayonet, the rotation of the first rotating shaft is restricted.
[0012] Furthermore, the base includes a bottom plate and a vertical plate fixedly arranged on the bottom plate, and the first bracket and the second bracket are respectively arranged on the vertical plate.
[0013] Furthermore, ends of the first bracket and the second bracket are symmetrically arranged on both sides of the vertical plate, respectively, the first bracket is fixedly connected to the vertical plate, and the second vertical bracket is hinged to the vertical plate via a second hinge structure.
[0014] Furthermore, the base also includes a limit column, a reinforcement plate, a limit plate, and a mounting plate, wherein the limit column is horizontally arranged on the vertical plate, a raised inclined surface is provided in the middle of the limit plate, and the raised inclined surface cooperates with the front end surface of the limit column to make the limit plate present an inclined surface to form a mounting surface of the smart terminal, the reinforcement plate is arranged between the front end surface of the limit column and the raised inclined surface, the mounting plate is arranged on the limit plate, a plurality of mounting holes are provided on the mounting plate, and mounting parts are provided at positions corresponding to the mounting holes on the back of the smart terminal, and the smart terminal is detachably connected to the mounting plate through the cooperation between the mounting holes and the mounting parts.
[0015] Furthermore, it also includes a cover plate arranged on the upper surface of the mounting plate, the cover plate side walls are provided with a plurality of convex ribs around, the limiting plate is provided with embedded holes corresponding to the convex ribs, the cover plate is fixedly connected to the limiting plate, and the cover plate is provided with a second mounting hole corresponding to the position and size of the mounting hole.
[0016] Furthermore, it also includes an operation panel, the base is fixed on the operation panel, and the setting area is arranged in the middle of the operation panel.
[0017] Furthermore, a plurality of third mounting holes for mounting a limiting structure are provided on the front side of the operation panel close to the operator, and the limiting structure is used to limit the distance between the operator and the operation panel.
[0018] Compared with the prior art, the utility model has the following beneficial effects: when students conduct physical, chemical and biological experiments, by configuring the experimental platform of the utility model, the two cameras on the experimental platform can record the entire operation from a bird's-eye view and a second perspective, and there is no need for an invigilator to watch the entire process, which saves a lot of human resources, can easily organize a large number of physical, chemical and biological experiments, and improves experimental efficiency;
[0019] It provides hardware support for intelligent terminals to automatically score according to operations, further promoting the improvement of teaching efficiency;
[0020] The joint collection of the first camera and the second camera can easily restore and evaluate the entire process of student operation. By setting the second camera to be rotatable, the shooting angle of the second camera can be adjusted to avoid the situation where the operation exceeds a certain height and cannot be photographed from the side;
[0021] The first bracket and the second bracket are configured to be foldable, and they can be folded and stored during transportation or when not in use, which is beneficial to protecting the two cameras; by configuring the smart terminal to be detachable and installable, it is beneficial to match the smart terminal with different needs. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0023] Figure 1 It is a schematic diagram of the structure of the utility model;
[0024] Figure 2 for Figure 1 AA section view;
[0025] Figure 3 for Figure 2 Partial magnification;
[0026] Figure 4 This is a schematic diagram of the exploded structure of the utility model;
[0027] Figure 5 This is a schematic diagram of the installation structure of the second bracket and the base of the utility model;
[0028] Figure 6 This is a schematic diagram of the back structure of the utility model;
[0029] Figure 7 It is a schematic structural diagram of an embodiment of the utility model. DETAILED DESCRIPTION
[0030] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.
[0031] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive, independent, or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present invention may be combined with other embodiments.
[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0033] like Figure 1 and Figure 7 As shown, as an embodiment of the utility model, the physical, chemical and biological experiment platform of the utility model includes a base 100, a first bracket 300 arranged on the base 100, a second bracket 500 and an intelligent terminal 200 arranged on the base, the first bracket 300 is provided with a first camera 400 on the upper part, and the second bracket 500 is provided with a second camera 600 on the upper part.
[0034] The base 100 is fixed to the area near the rear end of the operation panel 900. A setting area 901 is provided in the middle of the operation panel 900 for students to operate physics, chemistry and biology.
[0035] The first camera 400 is arranged directly above the set area, and can shoot the set area 901 video from a top-down perspective. The second camera 600 is arranged below the side of the first camera 400, and can shoot the set area 901 video from a second perspective, generally set to shoot at a 45-degree angle. The input end of the smart terminal 200 is connected to the output end of the first camera 400 and the output end of the second camera 600, and collects or forwards the video collected by the first camera 400 and the second camera 500.
[0036] In order to prevent students from blocking the shooting of the first camera 400 and the second camera 600 due to their sitting posture during operation, in this example, a plurality of third mounting holes 902 for installing a limiting structure are provided on the front side of the operating panel 900 close to the operator. The limiting structure is used to limit the distance between the operator and the operating panel, and can be a baffle set to a certain height and fitting the body, or a limiting block, etc.
[0037] When students conduct physical, chemical and biological experiments, the experimental platform of the utility model is configured, and two cameras on the experimental platform are used to record the entire operation from a bird's-eye view and a second perspective. There is no need for an invigilator to watch them all the time, which saves a lot of human resources, can easily organize a large number of physical, chemical and biological experiments, and improves experimental efficiency.
[0038] The utility model provides hardware support for the intelligent terminal to automatically score according to the operation. Preferably, the operation steps or operation reminders can be configured on the intelligent terminal of the utility model to facilitate students to operate according to the requirements. The automatic scoring system can also be set to compare the acquired video with the standard video, so as to intuitively score the student's operation, reduce the workload of teachers, and further promote the improvement of teaching efficiency. The intelligent terminal in this example can also serve as a transfer station to transmit the video to the background, and the background teacher or system will score it.
[0039] like Figure 4As shown, as a preferred embodiment of the utility model, since physical, chemical and biological experiments usually involve adding solvents to containers, in order to avoid the situation where the second camera 600 cannot capture the scene from the side when the operation exceeds a certain height, the second bracket 500 and the second camera 600 in this example are rotatably connected through a rotating bracket 700. One end of the rotating bracket 700 is rotatably connected to the end of the second bracket 500, and the other end is fixedly connected to the housing of the second camera 600. In this example, through the joint collection of the first camera 400 and the second camera 600, the whole process of evaluating the student's operation can be easily restored.
[0040] like Figure 1-Figure 6 As shown, the first bracket 300 of this example includes a first vertical bracket 301 and a first horizontal bracket 303, one end of the first horizontal bracket 303 is rotatably connected to the top of the first vertical bracket 301 through a first hinge structure 302, and the other end is fixedly connected to the first camera 400. Similarly, the second bracket 500 includes a second vertical bracket arranged vertically and a second horizontal bracket arranged vertically to the second vertical bracket, one end of the second horizontal bracket is connected to the top of the second vertical bracket through a first hinge structure 302, and the other end is rotatably connected to the second camera through a hinge axis for adjusting the angle of the second viewing angle. The second vertical bracket and the second horizontal bracket, the first vertical bracket 301 and the first horizontal bracket 303 can be folded respectively through the first hinge structure 302. The first bracket 300 and the second bracket 500 are arranged to be foldable, and they can be folded and stored during transportation or when not in use, which is conducive to protecting the two cameras.
[0041] The first hinge structure 302 of this example includes a hinged first rotating shaft 3024 and a rotating shaft seat 3027, the first rotating shaft 3024 has more than one bayonet at its edge, the rotating shaft seat is provided with a sliding button 3021, a stop pin 3023 linked to the sliding button 3021, and a spring 3022 sleeved on the end of the stop pin 3023, the stop pin 3023 is provided with a circle of limiting ring, one end of the spring 3022 is fixed on the rotating seat 3027, and the other end is limited by the limiting ring, the other end of the stop pin 3023 is arranged toward the first rotating shaft 3024, and the stop pin 3023 is provided with a spring 3022. 023 can be inserted into the bayonet under the action of the spring 3022. When the sliding button 3021 is slid, the stop pin 3023 is driven to move in a direction away from the first rotating shaft 3024, the spring 3022 is compressed, the end of the stop pin 3023 leaves the bayonet, and the first rotating shaft 3024 can rotate relative to the rotating seat 3027. When the sliding button 3021 is released, the stop pin 3023 moves in the direction of the first rotating shaft 3024 under the reset drive of the spring 3022. When the bayonet is inserted into the bayonet, the first rotating shaft 3024 is restricted from rotating. When the first rotating shaft 3024 rotates, the splicing plate 3025 fixedly connected to the first rotating shaft drives the first horizontal bracket 303 to rotate.
[0042] The base 100 of this example includes a bottom plate 101 and a vertical plate 102 fixedly arranged on the bottom plate 101. The ends of the first bracket 300 and the second bracket 500 are symmetrically arranged on both sides of the vertical plate 102. The first bracket 300 is fixedly connected to the vertical plate 102 through a fixing member 1021. The second vertical bracket is hinged to the vertical plate 102 through a second hinge structure 800. The second hinge structure 800 of this example includes a hinge body 801 fixedly connected to the vertical plate 102 and a hinge member 802 fixedly connected to the second vertical bracket. By setting the second vertical bracket to be hinged, the second camera can not only be adjusted on the vertical plane, but also can be adjusted on the horizontal plane, thereby meeting various needs.
[0043] Preferably, the base 100 of this example further includes a limiting column 103, a reinforcing plate 104, a limiting plate 106, and a mounting plate 107, wherein the limiting column 103 is horizontally arranged in the middle of the front of the vertical plate 102, and a raised inclined surface is arranged in the middle of the limiting plate 106, and the raised inclined surface cooperates with the front end surface of the limiting column 103, so that the limiting plate 106 is an inclined surface, forming the mounting surface of the smart terminal 200, which is convenient for students to view the content on the screen of the smart terminal, and the reinforcing plate 104 is arranged between the front end surface of the limiting column 103 and the raised inclined surface, and the mounting plate 107 is arranged on the limiting plate 106, and the four corners of the mounting plate 107 are respectively provided with four mounting holes, and the back of the smart terminal 200 is provided with mounting parts corresponding to the mounting holes, and the smart terminal is detachably connected to the mounting plate through the cooperation of the mounting holes and the mounting parts. In this example, by adjusting the angle of the raised inclined surface, the inclination angle of the smart terminal 200 relative to the bottom plate 101 can be adjusted. In this example, the mounting plate 107, the limiting column 103, the reinforcing plate 104 and the limiting plate 106 are assembled together by screws 105 to form a complete smart terminal installation structure. By setting the smart terminal to be detachable, it is helpful to match smart terminals with different needs.
[0044] Preferably, this example further includes a cover plate 108 disposed on the upper surface of the mounting plate 107, the side walls of the cover plate 108 are provided with a plurality of convex ribs, the position of the limit plate corresponding to the convex ribs is provided with an embedding hole, the cover plate is fixedly connected to the limit plate, and the cover plate is provided with a second mounting hole corresponding to the position and size of the mounting hole. Thus, the assembly parts such as the screws 105 are hidden, and the user perception of the outer surface is better.
[0045] The specific implementation methods described above are preferred implementation methods of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation methods. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.
Claims
1. A physical, chemical and biological experimental platform, characterized by: The device comprises a base, a first bracket arranged on the base, a second bracket and a smart terminal arranged on the base, wherein a first camera is arranged on the upper part of the first bracket, a second camera is arranged on the upper part of the second bracket, the first camera is arranged directly above a set area and can shoot a video of the set area from a bird's-eye view, the second camera is arranged below the side of the first camera and can shoot a video of the set area from a second view, the input end of the smart terminal is connected to the output end of the first camera and the output end of the second camera, and collects or forwards the video collected by the first camera and the second camera, The second bracket includes a second vertical bracket arranged vertically and a second horizontal bracket arranged vertically to the second vertical bracket. One end of the second horizontal bracket is connected to the top end of the second vertical bracket, and the other end is rotatably connected to the second camera through a hinge axis for adjusting the angle of the second viewing angle.
2. The physical, chemical and biological experimental platform according to claim 1, characterized in that: The first bracket includes a first vertical bracket and a first horizontal bracket, one end of the first horizontal bracket is connected to the top of the first vertical bracket, and the other end is provided with a first camera. The second vertical bracket and the second horizontal bracket, the first vertical bracket and the first horizontal bracket are respectively hinged through a first hinge structure.
3. The physical, chemical and biological experimental platform according to claim 2, characterized in that: The second vertical bracket and the second horizontal bracket, the first vertical bracket and the first horizontal bracket can be folded and stored respectively through the first hinge structure.
4. The physical, chemical and biological experimental platform according to claim 2, characterized in that: The first hinge structure includes a hinged first rotating shaft and a rotating shaft seat, the edge of the first rotating shaft is provided with more than one bayonet, the rotating shaft seat is provided with a sliding button, a stop pin linked to the sliding button, and a spring sleeved on the end of the stop pin, the stop pin is provided with a circle of limiting ring, one end of the spring is fixed on the rotating seat, and the other end is limited by the limiting ring, and the other end of the stop pin is arranged toward the first rotating shaft, The stop pin can be inserted into the bayonet under the action of a spring. When the sliding button is slid, the stop pin is driven to move in a direction away from the first rotating shaft. The spring is compressed, and the end of the stop pin leaves the bayonet. The first rotating shaft can rotate relative to the rotating seat. When the sliding button is released, the stop pin moves in the direction of the first rotating shaft driven by the spring reset. When the stop pin is inserted into the bayonet, the rotation of the first rotating shaft is restricted.
5. The physical, chemical and biological experimental platform according to claim 1, characterized in that: The base comprises a bottom plate and a vertical plate fixedly arranged on the bottom plate, and the first bracket and the second bracket are respectively arranged on the vertical plate.
6. The physical, chemical and biological experiment platform according to claim 5, characterized in that: The ends of the first bracket and the second bracket are symmetrically arranged on both sides of the vertical board, the first bracket is fixedly connected to the vertical board, and the second vertical bracket is hinged to the vertical board through a second hinge structure.
7. The physical, chemical and biological experiment platform according to claim 5, characterized in that: The base also includes a limiting column, a reinforcing plate, a limiting plate, and a mounting plate, wherein the limiting column is horizontally arranged on the vertical plate, a raised inclined surface is provided in the middle of the limiting plate, and the raised inclined surface cooperates with the front end surface of the limiting column so that the limiting plate presents an inclined surface to form a mounting surface of the smart terminal, the reinforcing plate is arranged between the front end surface of the limiting column and the raised inclined surface, the mounting plate is arranged on the limiting plate, a plurality of mounting holes are arranged on the mounting plate, and mounting parts are provided at positions corresponding to the mounting holes on the back of the smart terminal, and the smart terminal is detachably connected to the mounting plate through the cooperation between the mounting holes and the mounting parts.
8. The physical, chemical and biological experiment platform according to claim 7, characterized in that: It also includes a cover plate arranged on the upper surface of the mounting plate, the cover plate side walls are provided with a plurality of convex ribs around, the limiting plate is provided with embedded holes corresponding to the convex ribs, the cover plate is fixedly connected to the limiting plate, and the cover plate is provided with a second mounting hole corresponding to the position and size of the mounting hole.
9. The physical, chemical and biological experimental platform according to any one of claims 1 to 8, characterized in that: It also includes an operation panel, the base is fixed on the operation panel, and the setting area is arranged in the middle of the operation panel.
10. The physical, chemical and biological experiment platform according to claim 9, characterized in that: The front side of the operation panel close to the operator is also provided with a plurality of third mounting holes for mounting a limiting structure, and the limiting structure is used to limit the distance between the operator and the operation panel.