CN110544399A

CN110544399A - Graphical remote teaching system and graphical remote teaching method

Info

Publication number: CN110544399A
Application number: CN201910813234.0A
Authority: CN
Inventors: 高勇; 杨洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2019-12-06

Abstract

The invention provides a graphical remote teaching system, which comprises: a teacher terminal; a classroom management device; a plurality of student operators; and the cloud server processes the graphical answers or creation information represented by the received pixel coordinate sequence, the graphical answers and the created design idea, and stores the graphical answers or the created design idea in the learning information storage part in a manner of corresponding to the student operators. The system helps teachers to track, count and analyze data of classroom teaching effects and teaching processes in a graphical mode, helps parents to obtain student learning effects and feedback of learning thinking processes in a graphical mode, laying cost of the system is far lower than that of an existing similar system, and graphical remote teaching can be achieved with extremely low cost. The invention also provides a graphical remote teaching method and another graphical remote teaching system.

Description

graphical remote teaching system and graphical remote teaching method

Technical Field

The invention relates to a graphical remote teaching system and a graphical remote teaching method.

Background

The graphical teaching refers to teaching performed in a graphical mode.

For example, in the graphical programming teaching, abstract contents such as programming codes are expressed by graphical answer elements (such as cartoon patterns, color blocks, building blocks and the like), and abstract logical relations among the programming codes are graphical relations such as selection, sequencing, connection, combination and the like among the graphical answer elements, so that students can better understand the logic of the method. The graphical teaching is very suitable for children, so that the graphical teaching is widely applied to kindergarten scenes, children interest shifts and other scenes. In addition, graphic teaching is often used in art teaching such as drawing, for example, students practice drawing or calligraphy creation, and then send the work to teachers to review and comment on it.

In the prior art, a system for implementing graphical teaching generally comprises a student terminal, a teacher terminal and a server. The student terminals are devices such as eye protection computers and panels, students perform graphical answering or graphical creation through the student terminals, and the server processes results or sends the results to the teacher terminal to enable teachers to check the results. In the graphical teaching system, in order to implement graphical processing, all student terminals need to be provided with hardware structures such as a central processing unit CPU, an application processor AP, a digital signal processor DSP, a graphics processing unit GPU, a memory, a hard disk, a wireless module, a wireless bluetooth module, a touch screen, a battery and charging module, an external module (a keyboard, a mouse, a speaker, a microphone), a sensor module, and the like, and a single student terminal is high in cost. Moreover, the graphical teaching generally has the characteristic of personalized targeted teaching, so that each student needs to be equipped with a student terminal, and the laying cost of each class is high, and the application is difficult to be widely realized.

Disclosure of Invention

in order to solve the problems, the invention adopts the following technical scheme:

the invention provides a graphical remote teaching system, which is used for graphical education and graphical answering or graphical creation, and is characterized by comprising the following components: a teacher terminal held by a teacher who performs graphical education; a classroom management device disposed in a classroom; a plurality of student operators, which are respectively held by students in the classroom and are in communication connection with the classroom management device through a short-distance wireless communication mode; and a cloud server communicatively connected to the teacher terminal and the classroom management device by remote communication, wherein the classroom management device at least comprises a device-side near-field communication unit associated with the near-field communication mode and a device-side remote communication unit associated with the remote communication mode, the student operators at least comprise an input/output unit and a student-side communication unit associated with the near-field communication mode, the cloud server at least comprises a learning information processing unit for processing answer information or creation information and a learning information storage unit for storing the answer information or creation information, the classroom management device receives the graphical education screen information from the cloud server through the device-side communication unit and transmits the received graphical education screen information to each student operator through the device-side near-field communication unit, the student operator receives graphical education picture information through the student side communication unit once, the graphical education picture is displayed through the input and output unit once a student conducts graphical answering or graphical creation through the input and output unit aiming at the graphical education picture, the student side communication unit transmits the answering information or the creation information to the classroom management device, the classroom management device sends each answering information or creation information to the cloud server through the device side remote communication unit, and therefore the cloud server processes the received graphical answering or creation information and stores the received graphical answering or creation information into the learning information storage part correspondingly to the identity information of the student operator.

in addition, the invention also provides another graphical remote teaching system, which comprises: a teacher terminal held by a teacher who performs graphical education; a plurality of student operators, each of which is held by each student in the classroom; and a cloud server in communication connection with the teacher terminal and the student operators, wherein the student operators at least comprise an input/output unit and a student side communication unit, the cloud server at least comprises a learning information processing part for processing answer information or creation information and a learning information storage part for storing the answer information or creation information, the cloud server sends graphical education picture information to each student operator, the student operators display the graphical education picture through the input/output unit once receiving the graphical education picture information through the student side communication unit, the student side communication unit transmits the answer information or the creation information to the classroom management device once the students perform graphical answer or graphical creation on the graphical education picture through the input/output unit, and the classroom management device sends each answer information or creation information to the cloud server through the cloud device side remote communication unit Therefore, the cloud server processes the received graphical answering or creating information and stores the received graphical answering or creating information into the learning information storage part correspondingly to the student operators.

The invention also provides a graphical remote teaching method which is characterized by comprising the following steps:

1) In an operation interface of a student operator, a student edits and manufactures operation instructions for answering and creating in a graphical mode, and the operation instructions are used for a remote server to generate a teaching execution instruction;

2) In an operation interface of a student operator, a design idea of student answering and creation is edited and manufactured in a graphical mode, and the design idea is used for a remote server to construct and reproduce a set of student answers and created design idea elements;

3) uploading an answering and created graphical operation instruction and a design thought, and a corresponding pixel coordinate sequence to a remote server in a wireless communication mode;

4) Compiling and executing the operation instruction and the design idea through a server compiling module to generate a pixel coordinate sequence and an instruction code which can be graphically displayed and continuously executed by the student operator;

5) And wirelessly sending the graphical pixel coordinate sequence and the instruction codes to a student operator, so that the student operator displays a set of design idea elements step by step until final answers and creative works are displayed.

action and Effect of the invention

According to the graphical remote teaching system and the graphical remote teaching method provided by the invention, the learning information processing part is arranged in the cloud server, and the cloud server can process the graphical answer information or the creation information of the students, so that no processor or memory is arranged in the student operator, and no operating system or application software is required to be installed. Correspondingly, the cost of the student operator is far lower than that of the existing student terminal, the laying cost of the teaching system is also far lower than that of the existing similar system, and graphical remote teaching can be realized at extremely low cost.

drawings

FIG. 1 is a block diagram of a graphical remote teaching system according to a first embodiment of the present invention;

FIG. 2 is a diagram of a graphical question screen according to a first embodiment of the present invention;

FIG. 3 is a diagram of a graphical question screen during an authoring process according to a first embodiment of the present invention;

fig. 4 is a block diagram showing a configuration of a learning information processing unit according to a first embodiment of the present invention;

FIG. 5 is a diagram of a graphical question screen displaying an authoring result according to a first embodiment of the present invention;

FIG. 6 is a flowchart illustrating a graphical creation process of a graphical remote teaching method according to a first embodiment of the present invention;

Fig. 7 is a schematic view of a graphical question screen according to a modification of the present invention;

FIG. 8 is a block diagram showing a graphical remote teaching system according to a second embodiment of the present invention;

FIG. 9 is a diagram of a fourth embodiment of the present invention, in which a user answers a question based on a handwriting input area;

Fig. 10 is a diagram illustrating a screen for performing art creation based on a handwriting input area according to a fourth embodiment of the present invention.

Detailed Description

as a first aspect, the present invention provides a graphical remote teaching system for performing graphical education and graphical answering or graphical creation, comprising: a teacher terminal held by a teacher who performs graphical education; a classroom management device disposed in a classroom; a plurality of student operators, which are respectively held by students in the classroom and are in communication connection with the classroom management device through a short-distance wireless communication mode; and a cloud server communicatively connected to the teacher terminal and the classroom management device by remote communication, wherein the classroom management device at least comprises a device-side near-field communication unit associated with the near-field communication mode and a device-side remote communication unit associated with the remote communication mode, the student operators at least comprise an input/output unit and a student-side communication unit associated with the near-field communication mode, the cloud server at least comprises a learning information processing unit for processing answer information or creation information and a learning information storage unit for storing the answer information or creation information, the classroom management device receives the graphical education screen information from the cloud server through the device-side communication unit and transmits the received graphical education screen information to each student operator through the device-side near-field communication unit, the student operator receives graphical education picture information through the student side communication unit once, the graphical education picture is displayed through the input and output unit once a student conducts graphical answering or graphical creation through the input and output unit aiming at the graphical education picture, the student side communication unit transmits the answering information or the creation information to the classroom management device, the classroom management device sends each answering information or creation information to the cloud server through the device side remote communication unit, and therefore the cloud server processes the received graphical answering or creation information and stores the received graphical answering or creation information into the learning information storage part correspondingly to the identity information of the student operator.

The graphical tutorial system according to the first embodiment may further have a feature that the short-range wireless communication system is any one of Wifi, bluetooth, 2.4G wireless BLE, IrDa, ZigBee, NFC, UWB, RFSIM, and SIMPASS.

the graphical remote teaching system according to the first aspect may further include a technical feature in which the input/output unit is a touch screen, the graphical education screen includes a graphical question screen, the graphical question screen includes a graphical answer element set option area, various graphical answer element sets required for completing answering and creating are displayed in the graphical answer element set option area, and the graphical answer information is formed by a student performing an answer operation or an creation operation including at least one of selection, movement, or combination on the graphical answer element set in the graphical question screen through the touch screen.

In the graphical remote teaching system according to the first embodiment, the technical feature may be further included in that the graphical education is a graphical programming or education creation process, the cloud server further includes a cloud side communication unit associated with the remote communication method, the learning information processing unit includes a code compiling module including a programming code storage unit, a programming code obtaining unit, and a programming code operating unit, the programming code storage unit stores programming codes corresponding to the respective graphical answer element sets, and the information processing control unit controls the programming code obtaining unit to retrieve the corresponding programming codes from the programming code storage unit according to the graphical answer element sets included in the answer information or the creation information once the cloud side communication unit receives the answer information or the creation information, the control programming code operation unit operates the acquired programming codes based on the answering process and the creating process in the answering information or the creating information so as to form answering results or creating results corresponding to the operation results, and the learning information storage part stores the answering information and the corresponding answering results or the creating information and the corresponding creating results.

The graphical remote teaching system according to the first aspect may further include: the parent mobile terminal is held by parents of students and is in communication connection with the cloud server in a remote communication mode, the cloud side control portion controls the learning information storage portion to store answer information and corresponding answer results or creation information and corresponding creation results, and simultaneously controls the cloud side communication unit to send the answer information or the creation information to the parent mobile terminal corresponding to the students, and the parent mobile terminal is made to display corresponding answer processes or creation processes.

in the graphical remote teaching system according to the first embodiment, the cloud server further has a result picture processing and generating unit, the cloud side control unit controls the learning information storage unit to store the answer information and the corresponding answer result or the creation information and the corresponding creation result, and controls the result picture generating unit to generate a frame image stream reflecting the answer result or the creation result as a result frame image stream, and further controls the cloud side communication unit to send the result frame image stream to the student operator in real time through the classroom management device, so that the input/output unit dynamically displays the answer result or the creation result.

The graphical remote teaching system according to the first embodiment may further include a technical feature that the input/output unit is a touch screen, the graphical education screen includes a graphical question screen including a graphical question and creation area, and the question information and creation information is formed by a student performing a question answering operation or a creation operation in the form of handwriting input in the graphical question and creation area.

In the graphical remote teaching system according to the first embodiment, the system may further include a real-time image processing and generating unit, wherein when a student performs an answering operation or an creating operation, the student-side communication unit sends a pixel coordinate sequence formed by the answering operation or the creating operation sensed by the touch screen to the cloud server through the classroom management device in real time, the real-time image generating unit processes the pixel coordinate sequence corresponding to the answering operation or the creating operation and generated by the touch screen according to different student operators to form corresponding frame image streams, and the cloud-side communication unit sends the frame image streams to the corresponding student operators through the classroom management device in real time, so that the input/output unit graphically and the creating area dynamically display an answering process or an creating process in a graphical answering and creating area.

In the graphical remote teaching system according to the first embodiment, the technical feature may be further provided that the cloud server further includes a real-time image command section, the classroom management apparatus further includes an image cache section and an image processing section, the apparatus-side near-field communication unit transmits graphical education image information to each student operator, the image cache section caches the graphical education image information, when a student performs an answering operation or an creating operation, the student-side communication unit transmits a pixel coordinate sequence formed by the answering operation or the creating operation sensed by the touch screen to the cloud server in real time through the classroom management apparatus, the real-time image command section processes the pixel coordinate sequence transmitted from the different student operators to form a real-time image command stream for changing a set of image elements displayed in the graphical education image to form graphical display contents corresponding to the answering process or the creating process, the cloud side communication unit sends the real-time image instruction stream to the classroom management device, the image processing part respectively processes the graphical education image information in the image cache part according to the real-time image instruction stream to form frame image streams corresponding to the student operators, and the management side short-distance wireless communication part sends the frame image streams to the corresponding student operators in real time, so that the input and output unit graphically and dynamically displays the answering process or the creating process.

in the graphical remote teaching system according to the first aspect, the technical feature may be that the student operator further includes a sound stream playing section for playing a sound stream corresponding to the answering operation or the creating operation sent from the cloud server in real time.

as a second aspect, the present invention provides a graphical remote teaching system for performing graphical education and graphical answering or graphical creation, comprising: a teacher terminal held by a teacher who performs graphical education; a plurality of student operators, each of which is held by each student in the classroom; and a cloud server in communication connection with the teacher terminal and the student operators, wherein the student operators at least comprise an input/output unit and a student side communication unit, the cloud server at least comprises a learning information processing part for processing answer information or creation information and a learning information storage part for storing the answer information or creation information, the cloud server sends graphical education picture information to each student operator, the student operators display the graphical education picture through the input/output unit once receiving the graphical education picture information through the student side communication unit, the student side communication unit transmits the answer information or the creation information to the classroom management device once the students perform graphical answer or graphical creation on the graphical education picture through the input/output unit, and the classroom management device sends each answer information or creation information to the cloud server through the cloud device side remote communication unit Therefore, the cloud server processes the received graphical answering or creating information and stores the received graphical answering or creating information in the learning information storage part correspondingly to the identity information of the student operator.

In the graphical distance teaching system of the second aspect, there may be a technical feature that the student-side communication unit is a cellular network wireless module.

The graphical remote teaching system according to the second embodiment may further include a technical feature in which the input/output unit is a touch screen, the graphical education screen includes a graphical question screen, the graphical question screen includes a graphical answer element set option area, various graphical answer element sets required for completing answering and creating are displayed in the graphical answer element set option area, and the graphical answer information is formed by a student performing an answer operation or an creation operation including at least one of selection, movement, or combination on the graphical answer element set in the graphical question screen through the touch screen.

In the graphical remote teaching system according to the second embodiment, the learning information processing unit may further include a code compiling module including a programming code storage unit storing programming codes corresponding to the respective graphical answer element sets, a programming code obtaining unit retrieving and obtaining the corresponding programming codes from the programming code storage unit according to the graphical answer element set included in the answer information or the creation information once the cloud-side communication unit receives the answer information or the creation information, and an information processing control unit controlling the programming code obtaining unit to execute the obtained programming codes based on the answer process and the creation process in the answer information or the creation information to form and execute the obtained programming codes And the learning information storage part stores the answering information and the corresponding answering result or the corresponding creating information and the corresponding creating result.

The graphical remote teaching system according to the second aspect may further include: the parent mobile terminal is held by parents of students and is in communication connection with the cloud server in a remote communication mode, the cloud side control portion controls the learning information storage portion to store answer information and corresponding answer results or creation information and corresponding creation results, and simultaneously controls the cloud side communication unit to send the answer information or the creation information to the parent mobile terminal corresponding to the students, and the parent mobile terminal is made to display corresponding answer processes or creation processes.

in the graphical remote teaching system according to the second embodiment, the cloud server further has a result picture processing and generating unit, the cloud side control unit controls the learning information storage unit to store the answer information and the corresponding answer result or the creation information and the corresponding creation result, and controls the result picture generating unit to generate a frame image stream reflecting the answer result or the creation result as a result frame image stream, and further controls the cloud side communication unit to send the result frame image stream to the student operator in real time through the classroom management device, so that the input/output unit dynamically displays the answer result or the creation result.

the graphical remote teaching system according to the second embodiment may further include a technical feature that the input/output unit is a touch screen, the graphical education screen includes a graphical question screen including a graphical question and creation area, and the question information and creation information is formed by a student performing a question answering operation or a creation operation in the form of handwriting input in the graphical question and creation area.

in the graphical remote teaching system according to the second embodiment, the technical feature may further be that the cloud server further has a real-time image processing and generating unit, when a student performs an answering operation or an creating operation, the student-side communication unit sends a pixel coordinate sequence formed by the answering operation or the creating operation sensed by the touch screen to the cloud server in real time, the real-time image generating unit processes corresponding pixel coordinate sequences sent by different student operators to form corresponding frame image streams, and the cloud-side communication unit sends the frame image streams to the corresponding student operators in real time, so that the input and output unit performs graphical dynamic display on an answering process or an creating process in a graphical answering and creating area.

in the graphical remote teaching system according to the second aspect, the technical feature may be that the student operator further includes a sound stream playing section for playing a sound stream corresponding to the answering operation or the creating operation sent from the cloud server in real time.

as a third aspect, the present invention provides a graphical remote teaching method, comprising:

In the graphical remote teaching method according to the third aspect, the technical feature is that the operation interface of the student operator includes a touch screen terminal, a computer terminal, a teach pendant terminal, or a tablet terminal.

In the graphical remote teaching method according to the third embodiment, the operation instruction in step 1) may be formed by uploading a serial number of the student operator, student identity authentication information, a pixel coordinate sequence of the graphical instruction, variable data, or a screenshot picture stream of the student operator to the server.

in the graphical remote teaching method according to the third embodiment, the design idea in step 2) may be formed by uploading a serial number of the student operator, student identity authentication information, a pixel coordinate sequence of the graphical design idea, variable data, or a screenshot picture stream of the student operator to the server.

In the graphical remote teaching method according to the third embodiment, it is also possible to have a technical feature that the instruction codes and the design idea element sets in the step 1) and the step 2) include: high-level computer code, machine code, and intermediate code in the remote server CPU and memory.

in the graphical remote teaching method according to the third aspect, it is also possible to have a technical feature that the execution manner of the instruction codes and the design idea element sets is at least one of sequentially executed and interrupted.

In the third embodiment of the graphical remote teaching method, the technical characteristics including the student numbers, the student identity authentication information, the student answers and creations, and the set of the answers and the elements of the design thought of the creations can be further provided, and the answers and the elements of the design thought of the creations are transmitted to a teacher holding terminal through a remote server in a graphical mode, so that the teacher holding terminal is used for tracking, counting and analyzing the data of the classroom teaching effect and the teaching process.

in the graphical remote teaching method according to the third embodiment, the technical features including the set of student numbers, student identity authentication information, student answers and creations, and design idea elements of answers and creations may also be transmitted to the terminal of the student parent through the remote server in a graphical manner, and displayed in a graphical manner for feedback of the learning effect and the learning and thinking process of the student.

hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings and examples. Hereinafter, the expressions of the respective embodiments each include a case where the embodiment is applied as a single embodiment, and a case where the embodiment is applied in combination with any other embodiment/embodiment part.

< example one >

fig. 1 is a block diagram of a graphical remote teaching system according to a first embodiment of the present invention.

As shown in fig. 1, a graphical distance teaching system 100 according to a first embodiment includes a plurality of student operators 10, at least one classroom management device 20, at least one teacher terminal 30, and a cloud server 40.

The graphical distance teaching system 100 of the present embodiment is used for graphical education as well as graphical answering or graphical creation. The graphical education refers to education that objects are students based on graphs, the graphical answers refer to corresponding answering processes (with corresponding standard answers) performed by the students based on the graphs, and the graphical creation refers to learning and creation processes (without the standard answers) mainly based on autonomous creation performed by the students based on the graphs.

in addition, the present embodiment can be applied to different types of graphical education and corresponding graphical answers or graphical creation processes, and the graphical programming education is described as an example below. In the graphical programming education process, students perform programming creation (for example, designing an algorithm flow and the like) according to own ideas under the education and inspiration of teachers, so that the students perform graphical creation.

The cloud server 40 is held by a remote teaching service provider, the classroom management device 20 is installed in a classroom in which graphical remote teaching is performed, the student operators 10 are held by students who perform graphical answering or graphical creation in the classroom, and the teacher terminal 30 is held by a teacher who performs graphical education.

The classroom management device 20 is in communication connection with the plurality of student operators 10 in the same classroom via a short-range wireless communication method, which may be any one of various short-range wireless communication methods in the prior art, such as Wifi, bluetooth, and 2.4G wireless BLE. Meanwhile, the classroom management device 20 and the teacher terminal 30 are also connected to the cloud server 40 in a remote communication manner, respectively.

in this embodiment, the classroom management devices 20 and the student operators 10 are provided by remote teaching service providers, and each classroom management device 20 and each student operator 10 has a corresponding number (i.e., identification code) for distinguishing between communication and data transmission. The teacher terminal 30 may be a computer device provided by the remote teaching service provider and having a corresponding number, or may be a general computer having a network connection function.

For convenience of explanation, fig. 1 shows only one classroom management device 20 and a plurality of student manipulators 10 communicatively connected to the classroom management device 20. However, in the present invention, there may be a plurality of classrooms, and each classroom is provided with one classroom management device 20 and a plurality of student operators 10 connected to the classroom management device 20 in communication, and each classroom management device 20 is connected to the cloud server 40 in communication.

as shown in fig. 1, in the present embodiment, the student manipulator 10 is composed of a student side input/output unit 11, an audio stream playing section 12, a student side communication unit 13, and a power supply section 14.

the student-side communication unit 13 is communicatively connected to the classroom management device 20 by a short-range wireless communication method. The student side input/output unit 11 is a touch display screen, which can not only display images according to the image information received by the student side communication unit 13, but also sense the touch operation of the student and form a corresponding pixel coordinate sequence. The audio stream playing unit 12 plays the audio information received by the student side communication unit 13. The power supply unit 14 is a battery and supplies power.

the student manipulator 10 of the present embodiment does not have any processor, memory or buffer, and the student side communication unit 13 is a communication module with a built-in graphics and audio decoding function, so that the student side input/output unit 11 can directly perform the screen display on the received screen information and directly transmit the pixel coordinate sequence through the student side communication unit 13, and the sound stream playing unit 12 can also directly perform the sound stream playing on the received sound information. In addition, the student side communication unit 13 may transmit the pixel coordinate sequence at a preset certain time interval, and may also transmit the pixel coordinate sequence at a time interval dynamically changing according to the magnitude of the touch action of the student.

As shown in fig. 1, the classroom management device 20 includes a device-side short-range communication unit 21, a device-side long-range communication unit 22, and a cache unit 23. The device side short-distance communication unit 21 is in communication connection with the student side communication unit through a short-distance wireless communication mode, the device side long-distance communication unit 22 is in communication connection through a long-distance communication mode, and the buffer unit 23 is used for buffering data transmitted in the communication process. The classroom management device 20 is configured to send data sent from the student operators 10 to the cloud server 40, and correspondingly send data returned from the cloud server 40 back to each student operator 10, that is, functions as a router. In addition, the data buffering and data transmission of the classroom management device 20 are based on the numbers of the student operators 10, that is, the data of different student operators 10 are respectively buffered and transmitted according to the numbers.

The teacher terminal 30 includes a teacher-side input/output unit and a teacher-side communication unit (not shown).

The teacher-side communication unit is used to connect the teacher terminal 30 and the cloud server 40 in a communication manner. In this embodiment, the communication connection is realized by a login method, that is, the teacher logs in using a specific teacher ID and a specific password, so that a data connection is established with the cloud server 40.

the teacher side input and output unit is used for displaying a teacher side picture, and a teacher can perform corresponding teacher operation through the teacher side picture, including classroom explanation, question issue to students, creation timing start, creation process or creation result check and the like. In this embodiment, the teacher-side screen is transmitted from the cloud server 40 to the teacher terminal 30 and displayed, but in another embodiment, a screen storage unit may be provided in the teacher terminal and the teacher-side screen may be stored in the screen storage unit.

As shown in fig. 1, the cloud server 40 includes a learning information storage unit 41, a student information storage unit 42, a screen information storage unit 43, a real-time screen processing generation unit 44, a learning information processing unit 45, a result screen processing generation unit 46, an effect sound generation unit 47, a cloud-side communication unit 48, and a cloud-side control unit 49.

the cloud-side communication unit 48 is configured to exchange data between the cloud server 40 and the classroom management device 20 and the teacher terminal 30, and between the cloud server 40 and each of the internal components, and the cloud-side control unit 49 is configured to control the operation of each of the internal components of the cloud server 40.

The learning information storage unit 41 stores the graphical authoring information and the corresponding authoring result. Specifically, the learning information storage unit 41 stores the authoring information and the authoring result in association with the number of the student manipulator 10.

The learning information storage unit 41 of the present embodiment also stores previously designed questions or problems matching the graphical distance education. For example, a graphical programming lesson for young children may be designed with the following questions: the students combine different action commands and cycle commands to finally make the moving object reach the designated position. Each question or topic also contains different graphical answer elements, such as moving objects, location blocks, action blocks, etc.

In the present embodiment, these questions or problems are previously designed and stored in the learning information storage unit 41, and for example, the teacher may be designed by the teacher terminal, and the designed questions or problems may be stored in association with the teacher terminal 30 (for example, in association with the teacher ID).

The student information storage 42 is used to store student-related information including the identity information of the student (for example, name, reference course number, school number, etc. which can be used as personal identification of the student) and the number of the corresponding student operator 10.

The screen information storage unit 43 stores screen information related to graphical distance teaching designed in advance, including teacher-side screen information for display to a teacher through the teacher terminal 30, graphical education screen information for display to students through the student operators 10, and graphical contents included in these screens.

the teacher-side screen is displayed in the input/output unit of the teacher terminal so that the teacher performs a corresponding teacher operation, and has a plurality of portions corresponding to different teacher operations. In this embodiment, the teacher-side screen has a view selection portion, and when the teacher needs to present a question or a subject to the student, the teacher can view different questions or subjects sent from the cloud server 40 through the view selection portion and select one of the questions to present to the student.

The graphical education screen is used for displaying in the student side input/output unit 11, and includes a graphical teaching screen for displaying teaching content of a teacher and a graphical question screen for displaying a question of the teacher.

The graphical teaching picture comprises a teaching content display area used for displaying teaching content of a teacher, and the teaching content can be courseware PPT or real-time images of the teacher and the like. The teaching contents are acquired or collected by the teacher terminal 30, transmitted to the classroom management device 20 in the classroom receiving the course through the cloud-side communication unit 48, and finally transmitted to the student operators 10 through the device-side short-range communication unit 21 in synchronization, so that the student-side input/output unit 11 displays the teaching contents. In this process, the audio acquisition unit of the teacher terminal 30 may acquire the voice of the teacher and transmit the acquired audio and the graphical teaching picture to each student operator 10, so that the sound stream playing unit 13 may play the synchronized voice.

the graphical quiz screen is formed after the teacher selects a question through the teacher-side screen, and then transmitted to the student manipulator 10 and displayed through the student-side input-output unit 11. The following description will be made in conjunction with the aforementioned problems.

fig. 2 is a schematic diagram of a graphical question screen according to a first embodiment of the present invention.

as shown in fig. 2, the graphical questioning screen includes the subject selected by the teacher and a graphical answer element set option area 430. The graphic answer element set option area 430 contains a plurality of graphic answer elements that can be selected, switched or combined by the student. In fig. 2, the cartoon animal 431 is an object to be moved; block 432 corresponds to a command, which can switch between different move commands or cycle commands when the student chooses to click on a block; the flag 433 corresponds to the end of the operation, and when the student selects the switch of the block 432 to form the command combination, the end of the authoring operation can be confirmed by clicking the flag 433.

the real-time screen image processing generation unit 44 is for generating a screen image to be displayed on the student manipulator 10 by real-time processing, and includes: when the teacher selects a question, the real-time screen processing generation unit 44 generates a graphical question screen including an answer element corresponding to the question, based on the selected question; when a student performs an answering operation or an authoring operation through the student-side input-output unit 11, the real-time screen processing generation section 44 generates a real-time frame image stream as a process frame image stream corresponding to an operation process from a pixel coordinate sequence of the answering operation or the authoring operation.

Fig. 3 is a schematic diagram of a graphical question screen in an authoring process according to a first embodiment of the present invention.

referring to fig. 3, when the student selects and switches a block 432 in the graphical questioning screen through the student side input/output unit 11, the cloud side communication unit 48 receives a pixel coordinate sequence corresponding to the selection and switching operation in real time, and the real-time screen processing generation unit 44 generates a frame image stream in which the corresponding answer element changes according to the received pixel coordinate sequence, and when the frame image stream is transmitted to the student operator 10, the student side input/output unit 11 displays the frame image stream in real time. In effect, a new command is displayed at block 432 via the student's selection toggle operation.

The learning information processing unit 45 processes answer information or creation information transmitted from the student manipulator 10.

Fig. 4 is a block diagram showing a configuration of a learning information processing unit according to a first embodiment of the present invention.

as shown in fig. 4, the learning information processing section 45 includes a code compiling module 451 and an information processing control unit 452, wherein the code compiling module includes a program code storage unit 451a, a program code acquiring unit 451b, and a program code executing unit 451 c.

The programming code storage unit 451a stores therein programming codes corresponding to the respective answer elements, and the programming codes may be in the form of any one of high-level computer codes, machine codes, and intermediate codes.

The program code acquisition unit 451b is used for retrieving and acquiring the corresponding program code from the program code storage unit 451a according to the authoring information, the program code operation part 453 operates the acquired program code based on the answer information to form an answer corresponding to the operation result, and the processing control unit 454 controls the operations of the program code storage unit 451a, the program code acquisition unit 451b, and the program code operation unit 451 c. Since the present embodiment is directed mainly to graphical programming teaching, the learning information processing unit 45 in the present embodiment actually corresponds to a compiling module.

In this embodiment, the authoring information is formed by the selection, switching and combination of the blocks 432 by the student. The student operator 10 transmits the pixel coordinate sequence and the serial number and also transmits the serial number corresponding to the question or subject, the processing control unit 454 acquires the content of the question or subject according to the serial number of the question or subject, further determines to obtain a specific programming command according to the corresponding relationship between the pixel coordinate sequence and the answer element and the subject content, and then controls the programming code acquisition unit 451b to retrieve and store the corresponding programming code from the programming code storage unit 451 a. When the authoring information includes the operation end information, the processing control unit 454 controls the program code execution part 453 to execute the temporarily stored program codes in the logical order of the answer elements included in the authoring information, thereby obtaining an execution result (for example, the moving object reaches the target position in a certain moving manner, or the moving object cannot reach the target position), which is also the authoring result. In addition, the program code execution unit 451c executes the code in the same manner as the related art code execution manner, including at least one of sequential execution and interrupted execution.

the result screen process generating section 46 is configured to generate a frame image stream reflecting the authoring result as a result frame image stream. For example, a frame image stream of a run effect animation that reflects a programming success, or a frame image stream of a fail effect animation that reflects a programming failure.

Fig. 5 is a schematic diagram of a graphical question screen displaying an authoring result according to a first embodiment of the present invention.

As shown in fig. 5, since the student selects the switching block 432 to obtain the command combination of "move forward", "move up", and "loop", and the obtained programming result can move the cartoon animal 431 to the designated position, the running effect animation of successful programming (i.e. the effect animation of "happy and successful cheer" is displayed) is displayed on the graphical question screen.

The effect sound generating unit 47 is used for generating a corresponding real-time effect sound according to the authoring operation or the authoring result of the student. The effect sound generating part 47 has a sound storage unit storing preset sound, and when receiving the pixel coordinate sequence sent by the student operator 10, the effect sound generating part 47 judges the corresponding operation according to the pixel coordinate sequence and acquires the corresponding operation effect sound from the sound storage unit; when the learning information processing section 45 completes the processing and forms the authoring result, the effect sound generating section 47 acquires the corresponding effect sound from the sound storage unit according to the authoring result. When the operation effect sound or the result effect sound is acquired, the effect sound generation unit 47 forms a corresponding sound stream in accordance with the frame image stream generated by the real-time screen processing generation unit 45 or the result screen processing generation unit 46, so that the sound stream playing unit 12 plays the corresponding effect sound while the student side input/output unit 11 of the student manipulator 10 performs the dynamic graphic display.

The following describes a flow of implementing the graphical remote teaching method by using the graphical remote teaching system of the present embodiment.

The graphical remote teaching realized by the graphical remote teaching system of the embodiment mainly comprises a graphical education part and a graphical answer or creation part. The graphical education part mainly collects video and audio information such as teacher images, teaching PPT (power point) and teaching voices through a teacher terminal 30, sends the video and audio information to the classroom management devices 20 in one or more corresponding classrooms through the cloud server 40, and sends the video and audio information to the corresponding student operators 10 through the classroom management devices 20 to perform picture display and sound stream playing. In this manner, a teacher may give simultaneous lectures to multiple students within one or more teachers.

When the teacher needs to present a question to the student to have the student create, the question or question previously stored in the learning information storage unit 41 can be selected by looking at the selection section as described above.

Fig. 6 is a flowchart of graphical creation of a graphical remote teaching method according to a first embodiment of the present invention.

As shown in fig. 6, when the graphical remote teaching system 100 of the present embodiment is used for graphical teaching, after the teacher selects a topic to be presented to the student, the process of the student performing graphical creation includes the following steps:

Step S1: the real-time screen processing generation unit 44 generates a graphical question screen including a graphical answer element set option area 430 based on the selected question;

step S2: the cloud-side communication unit 48 transmits the graphical questioning screen to the classroom management apparatus 20, and the apparatus-side short-range communication unit 21 further transmits the graphical questioning screen to each of the student operators 10 in the classroom;

Step S3, the student side input/output unit 10 displays the received graphical questioning picture, so that the student performs the creation operation in a graphical manner;

Step S4, the student side communication unit 13 transmits the pixel coordinate sequence of the student creation operation as creation information to the classroom management device 20, and the device side near field communication unit 22 correspondingly transmits the pixel coordinate sequence together with the serial number of the student operator 10 to the cloud server;

In step S5, the cloud-side control unit 49 controls the real-time image processing generation unit 44 to generate a process frame image stream corresponding to the authoring operation according to the received pixel coordinate sequence processing, controls the effect sound generation unit 47 to generate a corresponding operation effect sound, controls the cloud-side communication unit 48 to transmit the process frame image stream and the operation effect sound to the classroom management device 20 together with the serial number of the student operator 10, and allows the device-side short-range communication unit 22 to transmit the frame image stream to the corresponding student operator 10 to perform the graphic dynamic display and sound stream playback of the authoring process;

Step S6, the learning information processing unit 45 processes the received authoring information until a corresponding authoring result is obtained;

in step S7, when the learning information processing unit 45 processes the authoring result, the cloud-side control unit 49 controls the result screen processing unit 46 to generate a frame image stream reflecting the authoring result, controls the effect sound generating unit 47 to generate a corresponding result effect sound, controls the cloud-side communication unit 48 to transmit the result frame image stream and the operation effect sound to the classroom management device 20 together with the number of the student operator 10, and allows the device-side near-field communication unit 22 to transmit the frame image stream to the corresponding student operator 10 to perform graphical dynamic display and sound stream playback of the authoring result.

In the above-described graphical creation process, the cloud-side control unit 49 further controls the learning information storage unit 41 to store the creation information and the creation result in correspondence with the serial number of the student operator 10.

In addition, when the teacher wishes to check the creation process and result of a certain student, a check request may be sent to the cloud server 40 through the teacher terminal 30, and a frame image stream of the corresponding creation process and creation result may be received from the cloud server 40 for graphical dynamic display and check. The frame image stream during the viewing process may be generated by the cloud-side control unit 49 according to the viewing request, controlling the real-time image processing generation unit 44 to process the authoring information, or controlling the result image processing generation unit 46 to generate the authoring result.

In summary, the graphical remote teaching system of the embodiment can implement the graphical remote teaching method in the following processes:

Examples effects and effects

According to the graphical remote teaching system and the graphical remote teaching method provided by the embodiment, the learning information processing part is arranged in the cloud server, and the graphical answer information or the creation information of the student can be processed, so that no processor or memory is arranged in the student operator, and an operating system and application software are not required to be installed. Accordingly, the cost of the student operator of the embodiment is far lower than that of the existing student terminal, and graphical remote teaching can be realized at low cost.

Furthermore, the cloud server is also provided with a real-time image processing generation part and a result image processing generation part, the real-time image processing generation part can generate a process frame image stream according to the operation process of the student so as to realize the graphic dynamic display of the operation process, and the result image processing generation part can generate a result frame image stream according to the answer result or the creation result so as to realize the graphic dynamic display of the result.

in addition, the data information sent between the cloud server and the student operators is transmitted by the classroom management device, and the cache unit in the classroom management device can cache the data information in the transmission process, so that the student operators can be free of any cache structure.

In general, the graphical remote teaching system and the graphical remote teaching method of the embodiment can realize graphical personalized interactive teaching under the condition that the student operator is not provided with any central processing unit CPU, application processor AP, digital signal processor DSP, graphics processing unit GPU, memory, hard disk and other structures. Specifically, the embodiment can realize the same teaching effect with the cost of about 3% of the existing teaching system, so that the laying cost can be greatly reduced, and the teaching system can be widely applied.

< modification example >

This modification is a modification of the first embodiment. In this modification, the same components and processes as those in the first embodiment are denoted by the same reference numerals, and the same description thereof is omitted.

The difference between this modification and the first embodiment is that the teacher does not present an open topic to the students during the graphical distance teaching process, but presents a question with a fixed answer to the students.

fig. 7 is a schematic diagram of a graphical question screen according to a modification of the present invention.

as shown in fig. 7, in the graphical questioning screen, the question selected by the teacher has different answer options (i.e., A, B, C, D four options), which are displayed in the graphical answer element set option area 430 in the form of different graphical answer elements, and the student clicks the corresponding option through the student-side input/output unit 11 to complete the answer.

since the position coordinates of different answer options in the screen are different, when the student-side communication unit 13 transmits a pixel coordinate sequence corresponding to a student click as answer information, the pixel coordinate sequence directly corresponds to a certain answer. When the learning information processing unit 45 processes the answer information, the answer selected by the student can be restored to obtain the answer, that is, the answer result, only according to the position relationship of each graphical answer option in the graphical question screen.

in order to prevent a wrong touch, a decision key may be provided in the graphical answer element set option region 430 of the present modification, and the learning information processing unit 45 may perform processing to obtain an answer result when the answer information includes click information (i.e., corresponding coordinate information) of the decision key.

In this variation, since the answers to the questions are fixed, an answer sorting unit and an answer counting unit may be further provided in the cloud server 40, where the answer sorting unit may sort the answers of students in one class so as to allow the students, parents, or teachers to view the ranking condition of the students in the class during the answering process, and the answer counting unit may count the past answering results of all the students in one student or one class so as to allow the students, parents, or teachers to view past and present learning conditions. Other similar means for statistics, ranking, score analysis, etc. used in the remote teaching system and method can also be combined and used in this variation, and are not described herein again.

in addition, the implementation manner of the present variation may be combined with the first embodiment, so as to form a graphical remote teaching system and method capable of simultaneously implementing graphical education, graphical answering and graphical creation.

< example two >

in this embodiment, the same components and processes as those in the first embodiment are denoted by the same reference numerals, and the same description thereof is omitted.

Fig. 8 is a block diagram showing a configuration of a graphical remote teaching system according to a second embodiment of the present invention.

as shown in fig. 8, unlike the first embodiment, the classroom management device 20 of the graphical remote teaching system 200 of the present embodiment includes a graphics processing unit 24 in addition to a device-side short-range communication unit 21, a device-side long-range communication unit 22, and a cache unit 23. The real-time screen processing generation unit 44 in the cloud server 40 is replaced with the real-time screen command unit 441.

in the present embodiment, when the student uses the student manipulator 10, the displayed picture contents such as the graphical teaching picture, the graphical questioning picture, etc. are all cached by the caching unit 23.

when the student performs the answering operation through the student-side i/o unit 11, the pixel coordinate sequence is still transmitted to the cloud server 40 through the classroom management device 20 for processing, but at this time, unlike the process in which the real-time frame processing generation unit 44 generates the frame image stream according to the pixel coordinate sequence in the first embodiment, the real-time frame instruction unit 441 generates a real-time frame instruction stream for changing the cached frame content according to the pixel coordinate sequence, and these real-time frame instruction streams are transmitted to the classroom management device 20 through the cloud communication unit 48. Then, the graphic processing unit 24 changes and refreshes the screen contents to be displayed at the corresponding student manipulator 10 according to the received real-time screen instruction to form a new frame image stream, and the device-side near-field communication unit 21 transmits the frame image stream to the student manipulator 10 to perform graphic dynamic display.

In the above process, when some screen contents to be displayed do not exist in the cache unit 23, the cloud side communication unit 48 further transmits the corresponding screen content information in the screen information storage unit 43 to the classroom management device 20 according to the real-time screen instruction of the real-time screen instruction unit 441, and causes the cache unit 23 to cache and the graphics processing unit 24 to perform processing such as screen content superimposition, so that the formed frame image stream includes these additional screen contents.

In this embodiment, since the cloud server 40 does not send the frame image stream of the real-time frame to the classroom management device 20, the amount of sent data is reduced, and accordingly, the required communication bandwidth can be reduced, the data sending efficiency can be improved, and the system construction cost can be reduced.

< example three >

unlike the first embodiment, the student manipulator 10 of the present embodiment is also provided with a buffer unit for buffering picture information and sound information. Accordingly, the student side input/output unit 11 can display a screen based on the buffer means, and the audio stream playing unit 12 can also play an audio stream based on the buffer means, so that the frequency of data exchange between the student operator 10 and the classroom management device 20 can be reduced, and the required communication bandwidth can be reduced as well, thereby improving the data transmission efficiency.

< example four >

The present embodiment is different from the first embodiment in that the graphical answer element set option area in the graphical education screen is replaced with a handwriting input area, and the learning information processing section 45 has one handwriting processing unit.

The graphical distance teaching system of the embodiment is suitable for graphical education and graphical creation, that is, a teacher performs artistic creation education courses based on graphics, and a student performs artistic creation based on graphics.

in the teaching process, the student side input and output unit 11 displays a graphical education picture containing a handwriting input area, and students create in the handwriting input area through a handwriting input form. Handwriting input can be any one of a plurality of forms such as fingertip touch, a touch screen pen, a pressure sensitive pen and the like. At the time of authoring, the student-side communication unit 13 transmits the corresponding pixel coordinate sequence (together with the pressure-sensitive signal if the handwriting input is pressure-sensitive) as authoring information to the classroom management apparatus 20, and the classroom management apparatus 20 transmits it to the cloud server 40. The handwriting processing unit in the learning information processing part 45 performs processing to form an authoring result (i.e., an authored piece) based on the received authoring information, and then the learning information storage part 41 stores the authoring information and the authoring result in correspondence with the student operator 10 number. Meanwhile, the cloud communication part 49 may also transmit the creation result to the teacher terminal 30 so as to allow the teacher to check and comment on the student works.

Fig. 9 is a diagram illustrating a screen for answering based on a handwriting input area according to a fourth embodiment of the present invention.

As shown in fig. 9, in the present embodiment, since there are a handwriting input area and a handwriting processing unit, students can answer questions by way of handwriting input, that is, directly write answers to questions and allow teachers to view the answers. In addition, such a form may also enable education in calligraphy creation.

As shown in fig. 10, the present embodiment also enables students to perform drawing creation by handwriting input, and is suitable for art education.

In addition, in other graphical education processes, if handwriting-based creation or answer needs to be added in the teaching based on the pattern elements, a handwriting input area and a handwriting processing unit may be additionally added in the graphical remote teaching system 100 according to the first embodiment, so that the answering or creation based on the graphical answer element set and the handwriting input can be simultaneously realized.

< example five >

The difference between this embodiment and the first embodiment is that the graphical remote teaching system further includes a plurality of parent mobile terminals, and the student information storage 42 further stores the student identity information and the serial number of the student operator 10 in correspondence with the serial number of the parent mobile terminal. When a parent wishes to check an answer or creation process, a check request may be input through the input/output unit of the parent mobile terminal, the cloud-side communication unit 48 obtains the corresponding serial number of the student operator 10 from the student information storage unit according to the request, further obtains answer information or creation information from the learning information storage unit 41, and forms a process frame image stream through the real-time image processing generation unit 46 and sends the process frame image stream to the parent mobile terminal for graphic dynamic display, so that the parent can check the answer or creation information.

In addition, the parent may also request to view the answer or the creation result through the parent mobile terminal, and the cloud server 40 sends the result frame image stream corresponding to the answer or the creation result to the parent mobile terminal in a real-time manner generated by the real-time image processing and generating unit 46, so that the parent mobile terminal graphically and dynamically displays the result for the parent to view.

In this embodiment, the parent may request to view the answering process, and the process frame image stream corresponding to the answering process is sent to the parent mobile terminal, so that the content viewed by the parent can completely reflect the actual operation process and design idea of the student during answering or creating. Compared with the prior art, in the graphical teaching system in the prior art, the cloud server only stores the processed results of the student terminals, so that the parents cannot check the answering creation process, the contents checked by the parents can completely reflect the thought of the student, the parents can know the thinking mode, thinking characteristics and the like of the student more clearly, and family education is more favorably developed.

< example six >

In this embodiment, the same components and processes as those in the first embodiment are given the same reference numerals and the same description is omitted.

the graphical remote teaching system of the present embodiment is composed of a plurality of student operators 10, at least one teacher terminal 30, and a cloud server 40. That is, the graphical remote teaching system of the present embodiment does not include the classroom management device 20.

In this embodiment, the student side communication unit 13 is a cellular wireless network communication module, and is in direct communication connection with the cloud server 40 through a cellular wireless network. Therefore, the image information and the sound information generated by the cloud server 40 are directly transmitted to each student operator 10 in real time, and the answer information or the creation information including the pixel coordinate sequence corresponding to the operation generated by each student operator 10 is also directly transmitted to the cloud server 40 in real time. Since data transmission by the classroom management device 20 as in the first embodiment is not required, the student operators 10 do not need to be installed in a centralized manner in the classroom, and the graphical remote teaching system of the present embodiment is more suitable for distributed graphical remote teaching.

The above embodiments are only used to illustrate different embodiments of the present invention, and the protection scope of the present invention is not limited to the description scope of the above embodiments.

for example, in the above-described embodiment, when the parent or the teacher needs to view the answer or the creation process, what is sent to the parent mobile terminal or the teacher terminal is the process frame image stream generated by the real-time screen processing generation section from the content stored in the learning information storage section. In other embodiments of the present invention, the process frame image stream may also be stored in correspondence with the serial number of the student operator, and when a parent or a teacher requests to view the process frame image stream, the stored process frame image stream may be directly transmitted without being generated in real time.

In the above embodiment, the learning information processing unit performs processing based on only the answer information or the creation information to obtain the corresponding answer result or creation result. For example, in the first embodiment, the learning information processing unit is equivalent to a compiling module for graphical programming teaching. However, in the present invention, in order to further improve the teaching effect, a debugging module may be further provided in the learning information processing unit, which performs an optimization suggestion based on artificial intelligence big data through an external server on a debugging command, and the obtained optimization suggestion may form a graphical content and send the graphical content to the student operator along with the process frame image stream for graphical dynamic display during the creation process, may form a graphical content and send the graphical content to the student operator along with the result frame image stream for graphical dynamic display after the creation is completed, and may form a textual content and send the textual content to the student operator or the parent mobile terminal.

in an embodiment, the student manipulator has a corresponding number, answer information or creation information and the like are sent based on the number, and the cloud server acquires student identity information based on the student information storage part. However, in the present invention, the student operator may also send answer information or creation information and the student identity information in a manner that the student side input/output unit displays an information input screen to allow the student to input the identity information.

In the embodiment, the answer information or the creation information is composed of a pixel coordinate sequence operated by a student, but in the invention, the screen capture picture stream of the student operator can be used as the answer information or the creation information, and the learning information processing part carries out other processing after carrying out graphic processing on the received screen capture picture stream.

In an embodiment, the student side input and output unit is a touch screen. However, in the present invention, the input/output device may be a computer, a teach pendant, or a tablet.

In addition, the application scenarios of the present invention are not limited to the education courses described in the embodiments, and the graphical remote teaching system and the graphical remote teaching method of the present invention can be used for teaching courses based on graphics, such as keyboard playing simple music, palette color matching drawing of art courses, instrument and equipment engineering part assembly learning of STEM courses, experiments or sample manufacturing using raw materials, and the like.

Claims

1. a graphical distance teaching system for graphical education and graphical answers or graphical creations, comprising:

A teacher terminal held by a teacher who performs graphical education;

A classroom management device disposed in a classroom;

A plurality of student manipulators which are held by students in the classroom and are in communication connection with the classroom management device in a short-distance wireless communication mode; and

A cloud server in communication connection with the teacher terminal and the classroom management device in a remote communication manner,

Wherein the classroom management device includes at least a device-side short-range communication unit compatible with the short-range wireless communication method and a device-side long-range communication unit compatible with the long-range communication method,

The student operator at least comprises an input/output unit and a student side communication unit matched with the short-range wireless communication mode,

the cloud server at least comprises a learning information processing part for processing answer information or creation information and a learning information storage part for storing the answer information or the creation information,

The classroom management device receives the graphical education picture information from the cloud server through the device side communication unit and transmits the received graphical education picture information to each student operator through the device side short-range communication unit,

The student operator displays a graphical education screen through the input output unit upon receiving the graphical education screen information through the student side communication unit,

The student side communication unit transmits answer information or creation information to the classroom management device upon the students performing graphic answering or graphic creation through the input output unit with respect to the graphic education screen,

The classroom management device sends each piece of answer information or the creation information to the cloud server through the device side remote communication unit so that the cloud server processes the received graphical answer or the creation information, and identity information corresponding to the student operators is stored in the learning information storage part.

2. The graphical distance teaching system according to claim 1, wherein:

The short-distance wireless communication mode is any one of Wifi, Bluetooth, 2.4G wireless BLE, IrDa, ZigBee, NFC, UWB, RFSIM and SIMPASS.

3. the graphical distance teaching system according to claim 1, wherein:

Wherein the input/output unit is a touch screen,

The graphical education picture contains a graphical questioning picture which contains a graphical answer element set option area,

The option area of the graphic answer element set displays various graphic answer element sets required for completing answering and creating,

the graphical answer information is formed by the student performing answer operation or creation operation including at least one of selection, movement or combination on the graphical answer element set in the graphical questioning picture through the touch screen.

4. The graphical distance teaching system according to claim 3, wherein:

Wherein the graphical education is a graphical programming or educational process,

the cloud server is also provided with a cloud side communication unit matched with the remote communication mode,

The learning information processing section has a code compiling module including a programming code storage unit, a programming code acquisition unit, a programming code execution unit,

the programming code storage unit stores programming codes corresponding to the graphic answer element sets,

Once the cloud-side communication unit receives the answer information or the creation information, the information processing control unit controls the programming code acquisition unit to retrieve and acquire corresponding programming codes from the programming code storage unit according to the graphical answer element set included in the answer information or the creation information, controls the programming code operation unit to operate the acquired programming codes based on the answer information or the answer process and the creation process operation in the creation information to form an answer result or a creation result corresponding to the operation result,

The learning information storage unit stores the answer information and the corresponding answer result or the creation information and the corresponding creation result.

5. The graphical distance teaching system according to claim 4, further comprising:

A parent mobile terminal held by the parents of the students and in communication connection with the cloud server in a remote communication mode,

Cloud side control portion is in control learning information storage portion is right answer information with correspond answer result or creation information with correspond still control when creation result carries out the storage high in the clouds side communication unit will answer information or creation information send with the student is corresponding parent's mobile terminal lets this parent's mobile terminal show the answer process or the creation process that correspond.

6. the graphical distance teaching system according to claim 4, wherein:

wherein the cloud server further comprises a result image processing generation part,

the cloud side control part controls the learning information storage part to store the answer information and the corresponding answer result or the creation information and the corresponding creation result, and controls the result picture generation part to generate a frame image stream reflecting the answer result or the creation result as a result frame image stream, and further controls the cloud side communication unit to send the result frame image stream to the student operator in real time through the classroom management device, so that the input and output unit dynamically displays the answer result or the creation result.

7. The graphical distance teaching system according to claim 1, wherein:

wherein the input/output unit is a touch screen,

The graphical education picture contains a graphical question-asking picture which contains graphical answering and creating areas,

The answer information and the creation information are formed by the student performing answer operation or creation operation in the form of handwriting input in the graphical answer and creation area.

8. the graphical distance teaching system according to any of claims 3-7, wherein:

Wherein the cloud server further comprises a real-time image processing generation part,

When the students perform the answering operation or the creating operation, the student side communication unit sends a pixel coordinate sequence formed by the answering operation or the creating operation sensed by the touch screen to the cloud server through the classroom management device in real time,

the real-time picture generating part processes and forms corresponding frame image streams according to corresponding pixel coordinate sequences sent by different student operators,

the cloud end side communication unit sends the frame image stream to the corresponding student operators in real time through the classroom management device, so that the input and output unit graphically and dynamically displays an answering process or an creating process in the graphical answering and creating area.

9. The graphical distance teaching system according to any of claims 3 to 7, wherein:

Wherein, the cloud server is also provided with a real-time image instruction part,

The classroom management device also has a screen buffer unit and a screen processing unit,

The device-side near field communication unit transmits the graphical education screen information to each of the student operators, and the screen cache unit caches the graphical education screen information,

The real-time picture instruction part processes according to the pixel coordinate sequence sent by different student operators to form a real-time picture instruction stream for changing a graphic element set displayed in the graphical education picture so as to form graphic display content corresponding to an answering process or an authoring process,

the cloud side communication unit sends the real-time image instruction stream to the classroom management device,

The picture processing part respectively processes the graphical education picture information in the picture cache part according to the real-time picture instruction stream to form frame image streams corresponding to the student operators,

the management-side short-distance wireless communication part transmits the frame image stream to the corresponding student operator in real time, so that the input and output unit graphically and dynamically displays an answering process or an creating process.

10. The graphical distance teaching system according to any of claims 3 to 7, wherein:

The student manipulator is also provided with a sound playing part which is used for playing the sound stream which is sent by the cloud server and corresponds to the answering operation or the creating operation in real time.

11. A graphical remote teaching method is characterized by comprising the following steps:

12. the graphical distance teaching method according to claim 11, wherein:

The operation interface of the student operator comprises a touch screen end, a computer end, a demonstrator end or a panel end.

13. the graphical distance teaching method according to claim 11, wherein:

the operation instruction in the step 1) is formed by uploading the serial number of the student operator, the student identity authentication information, the pixel coordinate sequence of the graphic instruction, the variable data or the screenshot picture stream of the student operator to a server.

14. the graphical distance teaching method according to claim 11, wherein:

The design idea in the step 2) is formed by uploading the serial number of the student operator, the student identity authentication information, the pixel coordinate sequence of the graphical design idea, the variable data or the screenshot picture stream of the student operator to a server.

15. the graphical distance teaching method according to claim 11, wherein:

The instruction code and design idea element set in step 1) and step 2) comprises: high-level computer code, machine code, and intermediate code in the remote server CPU and memory.

16. the graphical distance teaching method according to claim 11, wherein:

The instruction code and the design concept element set are executed in at least one of a sequential execution mode and an interrupt execution mode.

17. The graphical distance teaching method according to claim 11, wherein:

Including student's serial number, student's identity authentication information, student's answer and creation to and the collection of the design idea element of answer and creation to the graphical mode, transmit through remote server and hold teacher's terminal for the data tracking, statistics and the analysis of classroom teaching effect and teaching process.

18. The graphical distance teaching method according to claim 11, wherein:

Including student's serial number, student's identity authentication information, student's answer and creation to and the collection of the design idea element of answer and creation to the terminal of this student's head of a family is transmitted through remote server to the graphical mode, shows with the graphical mode, is used for the feedback of student's learning effect and study thinking process.