CN111179714A - A physical experiment teaching display device for junior middle school student - Google Patents
A physical experiment teaching display device for junior middle school student Download PDFInfo
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- CN111179714A CN111179714A CN202010125151.5A CN202010125151A CN111179714A CN 111179714 A CN111179714 A CN 111179714A CN 202010125151 A CN202010125151 A CN 202010125151A CN 111179714 A CN111179714 A CN 111179714A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/22—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for optics
Abstract
The invention discloses physical experiment teaching display equipment for junior middle school students, which can solve the problems that the existing school physical experiment equipment cannot be shared and students need to go to a laboratory for physical experiment operation display, and comprises a registration module, a server, an appointment module, a physical experiment module, an operation module and a display module; the registration login module is used for a junior middle school physical teacher to submit teacher information through a mobile phone terminal for registration and send the teacher information which is successfully registered to the server for storage; the invention carries out remote screening through the physical experiment equipment and establishes communication connection, thereby being convenient for sharing the physical experiment equipment in a school, simultaneously satisfying the manual operation of students by carrying out operation control and display on the physical experiment equipment, and simultaneously the students can carry out physical experiment operation without using a laboratory.
Description
Technical Field
The invention belongs to the technical field of physical teaching experiment display equipment, and particularly relates to physical teaching experiment display equipment for junior middle school students.
Background
The experimental physics is a subject for researching the most general rule of material motion and the basic structure of materials, is used as a leading subject of natural science, physically researches the most basic motion form and rule of all materials such as universe and basic particles, and is a research basis of other natural scientific subjects, the theoretical structure of the experimental physics fully uses mathematics as the working language of the experimental physics, and the physics can not be used as teaching articles in the teaching process;
in physics teaching, the optical refraction phenomenon is shown to be watched by students for enlightening the students, but the existing school physics experiment equipment cannot be shared and the students need to go to a laboratory for physical experiment operation display.
Disclosure of Invention
The invention aims to provide physical experiment teaching display equipment for junior middle school students, which can solve the problems that the existing school physical experiment equipment cannot be shared and students need to go to a laboratory to perform physical experiment operation display; the invention carries out remote screening through the physical experiment equipment and establishes communication connection, thereby being convenient for sharing the physical experiment equipment in a school, simultaneously, the operation control and display of the physical experiment equipment meet the manual operation of students, and simultaneously, the students can carry out physical experiment operation without using a laboratory;
the purpose of the invention can be realized by the following technical scheme:
a physical experiment teaching display device for junior middle school students comprises a registration and login module, a server, an appointment module, a physical experiment module, an operation module and a display module;
the registration login module is used for a junior middle school physical teacher to submit teacher information through a mobile phone terminal for registration and send the teacher information which is successfully registered to the server for storage; the teacher information comprises a name, a mobile phone number, a school name, a school position and an identification number; the reservation module is used for a junior middle school physics teacher to reserve physical experiment equipment through a mobile phone terminal, and the specific reservation steps are as follows:
the method comprises the following steps: the junior middle school physics teacher inputs the reserved time period and the name of the reserved physical experiment equipment through the mobile phone terminal and sends the reserved time period and the name of the physical experiment equipment to the reservation module;
step two: the method comprises the steps that a reservation module receives a reserved time period and a name of a physical experimental device and then performs primary selection, specifically, the physical experimental device without a reservation label in the reserved time period in a server is obtained and marked as the primary selection device; setting the initial selection equipment as Wi, wherein i is 1, … … and n;
step three: acquiring a school position correspondingly stored by the primary selection equipment, and calculating a learning position correspondingly stored by the primary selection equipment and a school position where a junior middle school physical teacher is located to acquire a distance difference of the primary selection equipment; and is denoted by JWi；
Step four: acquiring the total reservation times and the evaluation average value of the primary selection equipment through a server, and marking the total reservation times of the primary selection equipment as PWi(ii) a The evaluation mean is marked as UWi；
Step five: using formulas
Obtaining a physical experiment equipment value M of the primary selection equipmentWi(ii) a D1, d2 and d3 are all preset proportionality coefficients, mu is a correction factor, and the value is 0.8234;
step six: selecting the primary selection equipment with the maximum physical experiment equipment value as the appointed selection experiment equipment, and increasing the total times of appointment of the appointed selection experiment equipment by the colleagues once;
step seven: the reservation module sends a binding instruction to a mobile phone terminal of the junior middle school physical teacher, after the mobile phone terminal of the junior middle school physical teacher receives the binding instruction, the unique ID number of the operation module is input on the mobile phone terminal and is sent to the reservation module, the reservation module establishes reservation binding between the operation module and the experiment equipment selected in reservation in a reserved time period, and meanwhile, the reserved binding operation module, the experiment equipment selected in reservation and the reserved time period are sent to a server for storage;
the operation module is used for inputting an operation instruction and sending the operation instruction into the server, the server receives the operation instruction and sends the operation instruction to the physical experiment module, the physical experiment module receives the operation instruction and controls the physical experiment equipment to execute the corresponding operation instruction according to the operation instruction, and meanwhile video information of the physical experiment equipment executing the operation instruction is collected in real time and sent to the display module through the server; the display module is used for playing and displaying water refraction video information of the physical experiment equipment.
Preferably, the physical experiment module comprises a receiving unit, an analysis unit, an execution unit, a physical experiment device, an angle acquisition unit and a video acquisition unit; the receiving unit is used for receiving the operation instruction and sending the operation instruction to the analysis unit; the operation instruction is a rotation angle; the angle acquisition unit is used for gathering the current angle of laser lamp and sends current angle to the analysis unit, the analysis unit is used for carrying out the analysis to operating command, and concrete analysis step is:
the method comprises the following steps: calculating the rotation angle and the current angle of the laser lamp to obtain an offset angle;
step two: when the offset angle is larger than zero, generating a motor anticlockwise rotation instruction, and when the offset angle is smaller than zero, generating a motor clockwise rotation instruction; when the offset angle is equal to zero, no operation is performed;
step three: calculating an absolute value of the offset angle and converting the absolute value into the number of turns of the gear according to a certain proportion;
step four: the analysis unit sends a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns to the execution unit;
the execution unit is used for receiving a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns and controlling the motor to rotate, and the specific process is as follows: when a motor anticlockwise rotation instruction and the number of gear turns are received, controlling the motor to drive the gear to rotate anticlockwise, and when the number of anticlockwise rotation turns of the gear is equal to the number of gear turns, controlling the motor to stop rotating; when a clockwise rotation instruction and the number of turns of the gear of the motor are received, controlling the motor to drive the gear to rotate clockwise, and when the number of turns of the clockwise rotation of the gear is equal to the number of turns of the gear, controlling the motor to stop rotating;
preferably, the physical experiment equipment comprises a mounting plate, four clamping blocks are mounted on the mounting plate, rotating rings clamped in the four clamping blocks are placed on the mounting plate, a plurality of tooth sockets are uniformly formed in the outer side wall of each rotating ring, laser lamps are mounted on the inner side wall of each rotating ring, a circular ring container is mounted inside each mounting plate, angle lines are arranged inside each circular ring container, each angle line corresponds to one angle, water is filled inside each circular ring container, a motor is mounted on the mounting plate, a spindle end head of the motor penetrates through the mounting plate, a gear is welded at the end head, a number-of-turns sensor for detecting the number of turns of the gear is mounted on the gear, a plurality of teeth are uniformly mounted on the gear, and the gear is meshed and connected with the outer side wall of the rotating;
the video acquisition unit is used for acquiring water refraction video information of the physical experiment equipment.
Preferably, the display method of the physical experiment teaching display equipment comprises the following steps:
s1: a junior middle school physical teacher makes an appointment for a physical experimental device through a mobile phone terminal at an appointment module, the appointment module performs primary selection after receiving an appointment time period and a name of the physical experimental device, acquires a school position where the primary selection device is correspondingly stored, and calculates a learning position where the primary selection device is correspondingly stored and a school position where the junior middle school physical teacher is located to acquire a distance difference of the primary selection device; acquiring the total times of reservation and the evaluation mean value of the primary equipment through a server;
s2: acquiring a physical experimental device value of a primary selection device by using a formula, selecting the primary selection device with the maximum physical experimental device value as a reservation selection experimental device, sending a binding instruction to a mobile phone terminal of a physical teacher in the junior middle school by a reservation module, inputting a unique ID number of an operation module on the mobile phone terminal and sending the unique ID number to the reservation module after the mobile phone terminal of the physical teacher in the junior middle school receives the binding instruction, and establishing reservation binding between the operation module and the reservation selection experimental device in a reserved time period by the reservation module;
s3: in a preset time period, a junior and middle school physical teacher or a junior and middle school student inputs an operation instruction through an operation module and sends the operation instruction to a server, the server receives the operation instruction and sends the operation instruction to a receiving unit in a physical experiment module, and the receiving unit receives the operation instruction and sends the operation instruction to an analysis unit; the angle acquisition unit acquires the current angle of the laser lamp and sends the current angle to the analysis unit, and the analysis unit is used for analyzing the operation instruction to obtain a motor anticlockwise rotation instruction and the number of turns of a gear or a motor clockwise rotation instruction and the number of turns of the gear and sending the motor anticlockwise rotation instruction and the number of turns of the gear to the execution unit;
s4: the execution unit receives a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns and controls the motor to rotate, the execution unit controls the laser lamp to work, and the laser lamp emits laser which is refracted by water in the annular container; the video acquisition unit acquires the video information of the water refraction of the physical experiment equipment and sends the video information to the display module, and the display module plays and displays the water refraction video information of the physical experiment equipment.
The invention has the beneficial effects that: a junior middle school physical teacher makes an appointment for the physical experimental equipment at an appointment module through a mobile phone terminal, and the appointment module establishes appointment binding between the operation module and the experimental equipment selected in the appointment in an appointment time period; in a preset time period, a junior and middle school physical teacher or a junior and middle school student inputs an operation instruction through an operation module and sends the operation instruction to a server, the server receives the operation instruction and sends the operation instruction to a receiving unit in a physical experiment module, and the receiving unit receives the operation instruction and sends the operation instruction to an analysis unit; the angle acquisition unit acquires the current angle of the laser lamp and sends the current angle to the analysis unit, and the analysis unit is used for analyzing the operation instruction to obtain a motor anticlockwise rotation instruction and the number of turns of a gear or a motor clockwise rotation instruction and the number of turns of the gear and sending the motor anticlockwise rotation instruction and the number of turns of the gear to the execution unit; the execution unit receives a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns and controls the motor to rotate, the execution unit controls the laser lamp to work, and the laser lamp emits laser which is refracted by water in the annular container; the video acquisition unit acquires video information of water refraction of the physical experiment equipment and sends the video information to the display module, and the display module plays and displays the video information of the water refraction of the physical experiment equipment; carry out long-range screening through physics experimental facilities to establish communication connection, conveniently learn the physics experimental facilities in the school and share, simultaneously, through carrying out operation control and demonstration to physics experimental facilities, satisfy student's hands-on operation, the student can not carry out the physics experiment operation with the laboratory again simultaneously.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic block diagram of the overall structure of the present invention;
FIG. 2 is a view showing an overall configuration of a physical experiment apparatus according to the present invention;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a physical experiment teaching display device for junior middle school students includes a registration module, a server, an appointment module, a physical experiment module, an operation module and a display module;
the registration login module is used for the junior middle school physics teacher to submit teacher information through the mobile phone terminal for registration and send the teacher information which is successfully registered to the server for storage; the teacher information comprises a name, a mobile phone number, a school name, a school position and an identification number; the reservation module is used for a junior high school physics teacher to reserve the physical experiment equipment through a mobile phone terminal, and the specific reservation steps are as follows:
the method comprises the following steps: the junior middle school physics teacher inputs the reserved time period and the name of the reserved physical experiment equipment through the mobile phone terminal and sends the reserved time period and the name of the physical experiment equipment to the reservation module;
step two: the method comprises the steps that a reservation module receives a reserved time period and a name of a physical experimental device and then performs primary selection, specifically, the physical experimental device without a reservation label in the reserved time period in a server is obtained and marked as the primary selection device; setting the initial selection equipment as Wi, wherein i is 1, … … and n;
step three: acquiring the school position corresponding to the primary selection equipment, and correspondingly storing the learning position of the primary selection equipment and the position of the physical teacher in the junior high schoolCalculating the school position to obtain the distance difference of the primary selection equipment; and is denoted by JWi；
Step four: acquiring the total reservation times and the evaluation average value of the primary selection equipment through a server, and marking the total reservation times of the primary selection equipment as PWi(ii) a The evaluation mean is marked as UWi；
Step five: using formulas
Obtaining a physical experiment equipment value M of the primary selection equipmentWi(ii) a D1, d2 and d3 are all preset proportionality coefficients, mu is a correction factor, and the value is 0.8234;
step six: selecting the primary selection equipment with the maximum physical experiment equipment value as the appointed selection experiment equipment, and increasing the total times of appointment of the appointed selection experiment equipment by the colleagues once;
step seven: the reservation module sends a binding instruction to a mobile phone terminal of the junior middle school physical teacher, after the mobile phone terminal of the junior middle school physical teacher receives the binding instruction, the unique ID number of the operation module is input on the mobile phone terminal and is sent to the reservation module, the reservation module establishes reservation binding between the operation module and the experiment equipment selected in reservation in a reserved time period, and meanwhile, the reserved binding operation module, the experiment equipment selected in reservation and the reserved time period are sent to a server for storage;
the operation module is used for inputting an operation instruction and sending the operation instruction into the server, the server receives the operation instruction and sends the operation instruction to the physical experiment module, the physical experiment module receives the operation instruction and controls the physical experiment equipment to execute the corresponding operation instruction according to the operation instruction, and meanwhile video information of the physical experiment equipment executing the operation instruction is collected in real time and sent to the display module through the server; the display module is used for playing and displaying water refraction video information of the physical experiment equipment;
the physical experiment module comprises a receiving unit, an analysis unit, an execution unit, physical experiment equipment, an angle acquisition unit and a video acquisition unit; the receiving unit is used for receiving the operation instruction and sending the operation instruction to the analysis unit; the operation instruction is a rotation angle; the angle acquisition unit is used for gathering the current angle of laser lamp 17 and sends current angle to the analysis unit, and the analysis unit is used for carrying out the analysis to operating instruction, and concrete analysis step is:
the method comprises the following steps: calculating the rotation angle and the current angle of the laser lamp 17 to obtain an offset angle;
step two: when the offset angle is larger than zero, generating a motor anticlockwise rotation instruction, and when the offset angle is smaller than zero, generating a motor clockwise rotation instruction; when the offset angle is equal to zero, no operation is performed;
step three: calculating an absolute value of the offset angle and converting the absolute value into the number of turns of the gear according to a certain proportion;
step four: the analysis unit sends a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns to the execution unit;
the execution unit is used for receiving a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns and controlling the motor 19 to rotate, and the specific process is as follows: when a motor anticlockwise rotation instruction and the number of gear turns are received, controlling the motor to drive the gear 18 to rotate anticlockwise, and when the number of anticlockwise rotation turns of the gear is equal to the number of gear turns, controlling the motor to stop rotating; when a clockwise rotation instruction and the number of turns of the gear of the motor are received, controlling the motor to drive the gear 18 to rotate clockwise, and when the number of turns of the clockwise rotation of the gear is equal to the number of turns of the gear, controlling the motor to stop rotating;
the physical experiment equipment comprises a mounting plate 11, four fixture blocks 14 are mounted on the mounting plate 11, a rotating ring 12 clamped in the four fixture blocks 14 is placed on the mounting plate 11, a plurality of tooth sockets 13 are uniformly formed in the outer side wall of the rotating ring 12, a laser lamp 17 is mounted on the inner side wall of the rotating ring 12, a circular ring container 14 is mounted inside the mounting plate 11 and located in the rotating ring 12, angle lines 15 are arranged inside the circular ring container 14, each angle line 15 corresponds to one angle, water 16 is filled inside the circular ring container 14, a motor 19 is mounted on the mounting plate 12, a gear 18 penetrates through the mounting plate 11 at the end of a main shaft end of the motor 19, a circle number sensor 181 for detecting the number of rotating circles of the gear 18 is mounted on the gear 18, a plurality of teeth are uniformly mounted on the gear 18, and the gear 18 is meshed with the outer side wall; the physical experiment equipment is not limited to the above, and can provide intelligent control;
the video acquisition unit is used for acquiring water refraction video information of the physical experiment equipment.
The display method of the physical experiment teaching display equipment comprises the following steps:
s1: a junior middle school physical teacher makes an appointment for a physical experimental device through a mobile phone terminal at an appointment module, the appointment module performs primary selection after receiving an appointment time period and a name of the physical experimental device, acquires a school position where the primary selection device is correspondingly stored, and calculates a learning position where the primary selection device is correspondingly stored and a school position where the junior middle school physical teacher is located to acquire a distance difference of the primary selection device; acquiring the total times of reservation and the evaluation mean value of the primary equipment through a server;
s2: acquiring a physical experimental device value of a primary selection device by using a formula, selecting the primary selection device with the maximum physical experimental device value as a reservation selection experimental device, sending a binding instruction to a mobile phone terminal of a physical teacher in the junior middle school by a reservation module, inputting a unique ID number of an operation module on the mobile phone terminal and sending the unique ID number to the reservation module after the mobile phone terminal of the physical teacher in the junior middle school receives the binding instruction, and establishing reservation binding between the operation module and the reservation selection experimental device in a reserved time period by the reservation module;
s3: in a preset time period, a junior and middle school physical teacher or a junior and middle school student inputs an operation instruction through an operation module and sends the operation instruction to a server, the server receives the operation instruction and sends the operation instruction to a receiving unit in a physical experiment module, and the receiving unit receives the operation instruction and sends the operation instruction to an analysis unit; the angle acquisition unit acquires the current angle of the laser lamp 17 and sends the current angle to the analysis unit, and the analysis unit is used for analyzing the operation instruction, obtaining a motor anticlockwise rotation instruction and the number of turns of a gear or a motor clockwise rotation instruction and the number of turns of the gear and sending the instructions to the execution unit;
s4: the execution unit receives a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns and controls the motor 19 to rotate, the execution unit controls the laser lamp 17 to work, the laser lamp 17 emits laser, and refraction is carried out through water in the annular container 14; the video acquisition unit acquires the video information of the water refraction of the physical experiment equipment and sends the video information to the display module, and the display module plays and displays the water refraction video information of the physical experiment equipment.
The working principle of the invention is as follows: a junior middle school physical teacher makes an appointment for a physical experimental device through a mobile phone terminal at an appointment module, the appointment module performs primary selection after receiving an appointment time period and a name of the physical experimental device, acquires a school position where the primary selection device is correspondingly stored, and calculates a learning position where the primary selection device is correspondingly stored and a school position where the junior middle school physical teacher is located to acquire a distance difference of the primary selection device; acquiring the total times of reservation and the evaluation mean value of the primary equipment through a server; acquiring a physical experimental device value of a primary selection device by using a formula, selecting the primary selection device with the maximum physical experimental device value as a reservation selection experimental device, sending a binding instruction to a mobile phone terminal of a physical teacher in the junior middle school by a reservation module, inputting a unique ID number of an operation module on the mobile phone terminal and sending the unique ID number to the reservation module after the mobile phone terminal of the physical teacher in the junior middle school receives the binding instruction, and establishing reservation binding between the operation module and the reservation selection experimental device in a reserved time period by the reservation module; in a preset time period, a junior and middle school physical teacher or a junior and middle school student inputs an operation instruction through an operation module and sends the operation instruction to a server, the server receives the operation instruction and sends the operation instruction to a receiving unit in a physical experiment module, and the receiving unit receives the operation instruction and sends the operation instruction to an analysis unit; the angle acquisition unit acquires the current angle of the laser lamp 17 and sends the current angle to the analysis unit, and the analysis unit is used for analyzing the operation instruction, obtaining a motor anticlockwise rotation instruction and the number of turns of a gear or a motor clockwise rotation instruction and the number of turns of the gear and sending the instructions to the execution unit; the execution unit receives a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns and controls the motor 19 to rotate, the execution unit controls the laser lamp 17 to work, the laser lamp 17 emits laser, and refraction is carried out through water in the annular container 14; the video acquisition unit acquires video information of water refraction of the physical experiment equipment and sends the video information to the display module, and the display module plays and displays the video information of the water refraction of the physical experiment equipment; carry out long-range screening through physics experimental facilities to establish communication connection, conveniently learn the physics experimental facilities in the school and share, simultaneously, through carrying out operation control and demonstration to physics experimental facilities, satisfy student's hands-on operation, the student can not carry out the physics experiment operation with the laboratory again simultaneously.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A physical experiment teaching display device for junior middle school students is characterized by comprising a registration login module, a server, an appointment module, a physical experiment module, an operation module and a display module;
the registration login module is used for a junior middle school physical teacher to submit teacher information through a mobile phone terminal for registration and send the teacher information which is successfully registered to the server for storage; the teacher information comprises a name, a mobile phone number, a school name, a school position and an identification number; the reservation module is used for a junior middle school physics teacher to reserve physical experiment equipment through a mobile phone terminal, and the specific reservation steps are as follows:
the method comprises the following steps: the junior middle school physics teacher inputs the reserved time period and the name of the reserved physical experiment equipment through the mobile phone terminal and sends the reserved time period and the name of the physical experiment equipment to the reservation module;
step two: the method comprises the steps that a reservation module receives a reserved time period and a name of a physical experimental device and then performs primary selection, specifically, the physical experimental device without a reservation label in the reserved time period in a server is obtained and marked as the primary selection device; setting the initial selection equipment as Wi, wherein i is 1, … … and n;
step three: acquiring a school position correspondingly stored by the primary selection equipment, and calculating a learning position correspondingly stored by the primary selection equipment and a school position where a junior middle school physical teacher is located to acquire a distance difference of the primary selection equipment; and is denoted by JWi；
Step four: acquiring the total reservation times and the evaluation average value of the primary selection equipment through a server, and marking the total reservation times of the primary selection equipment as PWi(ii) a The evaluation mean is marked as UWi；
Step five: using formulas
Obtaining a physical experiment equipment value M of the primary selection equipmentWi(ii) a D1, d2 and d3 are all preset proportionality coefficients, mu is a correction factor, and the value is 0.8234;
step six: selecting the primary selection equipment with the maximum physical experiment equipment value as the appointed selection experiment equipment, and increasing the total times of appointment of the appointed selection experiment equipment by the colleagues once;
step seven: the reservation module sends a binding instruction to a mobile phone terminal of the junior middle school physical teacher, after the mobile phone terminal of the junior middle school physical teacher receives the binding instruction, the unique ID number of the operation module is input on the mobile phone terminal and is sent to the reservation module, the reservation module establishes reservation binding between the operation module and the experiment equipment selected in reservation in a reserved time period, and meanwhile, the reserved binding operation module, the experiment equipment selected in reservation and the reserved time period are sent to a server for storage;
the operation module is used for inputting an operation instruction and sending the operation instruction into the server, the server receives the operation instruction and sends the operation instruction to the physical experiment module, the physical experiment module receives the operation instruction and controls the physical experiment equipment to execute the corresponding operation instruction according to the operation instruction, and meanwhile video information of the physical experiment equipment executing the operation instruction is collected in real time and sent to the display module through the server; the display module is used for playing and displaying water refraction video information of the physical experiment equipment.
2. The physical experiment teaching display device for the junior middle school students according to claim 1, wherein the physical experiment module comprises a receiving unit, an analyzing unit, an executing unit, a physical experiment device, an angle collecting unit and a video collecting unit; the receiving unit is used for receiving the operation instruction and sending the operation instruction to the analysis unit; the operation instruction is a rotation angle; the angle acquisition unit is used for gathering the current angle of laser lamp (17) and sends current angle to the analysis unit, the analysis unit is used for carrying out the analysis to operating instruction, and concrete analysis step is:
the method comprises the following steps: calculating the rotation angle and the current angle of the laser lamp (17) to obtain an offset angle;
step two: when the offset angle is larger than zero, generating a motor anticlockwise rotation instruction, and when the offset angle is smaller than zero, generating a motor clockwise rotation instruction; when the offset angle is equal to zero, no operation is performed;
step three: calculating an absolute value of the offset angle and converting the absolute value into the number of turns of the gear according to a certain proportion;
step four: the analysis unit sends a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns to the execution unit;
the execution unit is used for receiving a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns and controlling the motor (19) to rotate, and the specific process is as follows: when a motor anticlockwise rotation instruction and the number of turns of the gear are received, the motor is controlled to drive the gear (18) to rotate anticlockwise, and when the number of turns of the anticlockwise rotation of the gear is equal to the number of turns of the gear, the motor is controlled to stop rotating; when a clockwise rotation command and the number of gear turns of the motor are received, the motor is controlled to drive the gear (18) to rotate clockwise, and when the number of the gear turns rotating clockwise is equal to the number of the gear turns, the motor is controlled to stop rotating.
3. The junior middle school student physical experiment teaching display device according to claim 2, wherein the physical experiment device comprises a mounting plate (11), four fixture blocks (14) are mounted on the mounting plate (11), a rotating ring (12) which is clamped in the four fixture blocks (14) is placed on the mounting plate (11), a plurality of tooth sockets (13) are uniformly formed in the outer ring side wall of the rotating ring (12), a laser lamp (17) is mounted on the inner ring side wall of the rotating ring (12), a circular ring container (14) is mounted inside the mounting plate (11) and located in the rotating ring (12), angle lines (15) are arranged inside the circular ring container (14), each angle line (15) corresponds to one angle, water (16) is filled inside the circular ring container (14), a motor (19) is mounted on the mounting plate (12), and the main shaft end of the motor (19) penetrates through the mounting plate (11), a gear (18) is welded at the end, a turn number sensor (181) for detecting the turn number of the gear (18) is arranged on the gear (18), a plurality of teeth are uniformly arranged on the gear (18), and the gear (18) is meshed and connected with the outer side wall of the rotating ring (12);
the video acquisition unit is used for acquiring water refraction video information of the physical experiment equipment.
4. The demonstration device for teaching physical experiments of junior middle school students according to claim 1, wherein the demonstration method for teaching physical experiments comprises the following steps:
s1: a junior middle school physical teacher makes an appointment for a physical experimental device through a mobile phone terminal at an appointment module, the appointment module performs primary selection after receiving an appointment time period and a name of the physical experimental device, acquires a school position where the primary selection device is correspondingly stored, and calculates a learning position where the primary selection device is correspondingly stored and a school position where the junior middle school physical teacher is located to acquire a distance difference of the primary selection device; acquiring the total times of reservation and the evaluation mean value of the primary equipment through a server;
s2: acquiring a physical experimental device value of a primary selection device by using a formula, selecting the primary selection device with the maximum physical experimental device value as a reservation selection experimental device, sending a binding instruction to a mobile phone terminal of a physical teacher in the junior middle school by a reservation module, inputting a unique ID number of an operation module on the mobile phone terminal and sending the unique ID number to the reservation module after the mobile phone terminal of the physical teacher in the junior middle school receives the binding instruction, and establishing reservation binding between the operation module and the reservation selection experimental device in a reserved time period by the reservation module;
s3: in a preset time period, a junior and middle school physical teacher or a junior and middle school student inputs an operation instruction through an operation module and sends the operation instruction to a server, the server receives the operation instruction and sends the operation instruction to a receiving unit in a physical experiment module, and the receiving unit receives the operation instruction and sends the operation instruction to an analysis unit; the angle acquisition unit acquires the current angle of the laser lamp (17) and sends the current angle to the analysis unit, and the analysis unit is used for analyzing the operation instruction to obtain a motor anticlockwise rotation instruction and the number of turns of a gear or a motor clockwise rotation instruction and the number of turns of the gear and sending the motor anticlockwise rotation instruction and the number of turns of the gear to the execution unit;
s4: the execution unit receives a motor anticlockwise rotation instruction and the number of gear turns or a motor clockwise rotation instruction and the number of gear turns and controls the motor (19) to rotate, the execution unit controls the laser lamp (17) to work, the laser lamp (17) emits laser, and refraction is carried out through water in the circular container (14); the video acquisition unit acquires the video information of the water refraction of the physical experiment equipment and sends the video information to the display module, and the display module plays and displays the water refraction video information of the physical experiment equipment.
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