CN110378817B

CN110378817B - Method and system for switching student equipment account numbers in intelligent classroom whole class

Info

Publication number: CN110378817B
Application number: CN201910651995.0A
Authority: CN
Inventors: 秦曙光; 陈家峰
Original assignee: Zhuhai Dulang Online Education Co ltd
Current assignee: Zhuhai Dulang Online Education Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-11-10
Anticipated expiration: 2039-07-18
Also published as: CN110378817A

Abstract

The invention discloses a method for switching account numbers of student equipment in an intelligent classroom during the whole class, which is characterized in that before a teacher starts a class-taking mode through a teacher end, account number switching operation is executed, and the account number switching operation comprises the following steps: switching classes, acquiring all student account IDs corresponding to the classes, and distributing the student account IDs in a UDP multicast mode, wherein the method comprises the following steps: step 1, constructing a local area network interconnecting a teacher end and a student end, setting a UDP server in the local area network, adding a preset UDP multicast address into the teacher end, and sending a single student account ID and an account competition service address; step 2, after accessing the local area network, the student terminal receives the UDP multicast, and after taking the account ID and the account competition service address, the student terminal competes for the account and competes for student terminal equipment to log in; and 3, repeating the step 2 until all the student terminal equipment account numbers in the whole class are logged in. The invention can obviously improve the efficiency of shift change test in the intelligent classroom test.

Description

Method and system for switching student equipment account numbers in intelligent classroom whole class

Technical Field

The invention relates to the field of intelligent classes, in particular to a method and a system for switching student equipment accounts in an intelligent class in whole class.

Background

With the progress of the times and the development of a plurality of high and new technology industries in China, electronic equipment such as a multimedia teaching system, a cable IP broadcast system, a monitoring camera system and the like are introduced by more and more schools. However, with the increase of the use frequency, different system platforms are gradually exposed to be managed independently by manpower, so that numerous system platforms for daily management and control of teaching are complex and tedious; with the rapid development of information technology, especially from the internet to the mobile internet, a cross-space-time living, working and learning mode is created, the network teaching enables the knowledge acquisition mode to be fundamentally changed, the teaching and learning can not be limited by the conditions of time, space and place, and the knowledge acquisition channel is flexible and diversified.

For a smart classroom built in a local area network, applicants find that a teacher often needs to be changed and a class-changing test needs to be performed in the smart classroom test process, and each change requires manual account login for each student device, which is time-consuming and prone to error.

However, in the current automatic login scheme, login information is configured in advance, and the automatic login method is not suitable for automatic login required by batch equipment in an intelligent classroom.

Disclosure of Invention

The present invention is directed to at least solving the problems of the prior art. Therefore, the invention discloses a method for switching account numbers of student equipment in an intelligent classroom during the whole class, which is characterized in that before a teacher starts a class-taking mode through a teacher end, account number switching operation is executed, and the account number switching operation comprises the following steps: and switching classes, acquiring all student account IDs corresponding to the classes, and distributing the student account IDs in a UDP multicast mode.

Further, the distributing the student account numbers by means of networking broadcasting further comprises:

step 1: the method comprises the steps that a local area network with a teacher end and a student end interconnected is built, a UDP server is arranged in the local area network, the teacher end is added with a preset UDP multicast address, and sending of a single student account ID and an account competition service address is executed;

step 2: after accessing the local area network, the student terminal receives the UDP multicast, and after taking the account ID and the account competition service address, the student terminal competes for the account and the competed student terminal equipment logs in;

and step 3: and (5) repeating the step (2) until all the student terminal equipment account numbers in the whole class are logged in.

Furthermore, when the teacher end executes the account switching operation, the teacher end uploads a multicast message to a UDP (user Datagram protocol) server in the local area network, and the UDP server distributes the multicast message to the student end through network transmission; after receiving the distributed multicast message, the student end device stores the multicast message and checks timestamp information of the received multicast message, compares the timestamp with the current time, judges that student account ID data in the multicast message is a vacant account if the time exceeds a preset time length, and skips the account to enter a next account distribution link.

Further, the step of implementing the UDP server to play the packets to the student side further includes: creating a UDP server socket, constructing a UDP server address structure, binding a teacher end address, constructing a multicast attribute structure, setting multicast authority and attributes of the student end and the teacher end, setting a student end multicast address to set a preset UDP multicast address, and then sending message data by the teacher end.

Furthermore, the account switching operation is a one-click operation, and account switching of students in the whole class is realized through a single click.

The invention also discloses a system for switching student equipment accounts in an intelligent classroom during the whole class, which comprises the following steps: student end equipment, teacher end equipment and local area network who constitutes jointly thereof, its characterized in that before the teacher started the mode of giving lessons through the teacher end, carries out account number switching operation through switching module, account number switching operation includes: and switching classes, acquiring all student account IDs corresponding to the classes, and distributing the student account IDs in a UDP multicast mode.

step 1: the method comprises the steps that a local area network with a teacher end and a student end interconnected is built through an initialization module, a UDP server is set in the local area network, the teacher end is added with a preset UDP multicast address through a local area network setting module, and the account number distribution module is used for sending a single student account number ID and an account number competition service address;

step 2: after the student terminal is accessed to the local area network, the UDP multicast is received through the receiving module, after the student terminal takes the account ID and the account competition service address, the student terminal competes for the account, and the competed student terminal equipment logs in;

Furthermore, when the teacher end executes the account switching operation, the teacher end uploads a multicast message to a UDP (user Datagram protocol) server in the local area network, and the UDP server distributes the multicast message to the student end through network transmission; after receiving the distributed multicast message, the student end device stores the multicast and checks timestamp information of the received multicast message, compares the timestamp with the current time through a comparison module, judges that student account ID data in the multicast message is a vacant account if the time exceeds a preset time length, and skips the account to enter a next account distribution link.

Furthermore, the single-point switching module performs account switching operation as one-click operation, and account switching of students in the whole class is realized through single click.

As described above, the shift change test efficiency in the intelligent classroom test can be obviously improved through the technical scheme of the invention, and the shift change test can be completed by one-key batch login without logging in by one device; meanwhile, the delay of class time caused by memory forgetting and the like during account login is greatly reduced.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. In the drawings, like reference numerals designate corresponding parts throughout the different views.

Fig. 1 is a flowchart of a method for switching account numbers of student devices in an intelligent classroom throughout a shift.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. It should be noted that the detailed description set forth in connection with the appended drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The apparatus embodiments and method embodiments described herein are described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, units, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. The terms first, second, etc. in the description and claims of the present invention and in the drawings of the specification, if used in describing various aspects, are used for distinguishing between different objects and not for describing a particular order.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The student-side and teacher-side terminals may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.

The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Example one

As shown in fig. 1, before a teacher starts a class-taking mode through a teacher end, an account switching operation is performed, where the account switching operation includes: and switching classes, acquiring all student account IDs corresponding to the classes, and distributing the student account IDs in a UDP multicast mode.

Specifically, the teacher end plays the student ends in groups (sends data) through the UDP server.

The specific implementation steps comprise:

server.c

step 101: creating sockets for UDP servers

#include<sys/types.h>

#include<sys/socket.h>

int socket (int domain, int type, int protocol); // return socket

Step 102: building server address structures

struct sockaddr_in serveraddr；

#include<strings.h>

bzero(&serveraddr,sizeof(serveraddr))；

serveraddr.sin_family＝AF_INET；

serveraddr.sin_addr.s_addr＝htonl(INADDR_ANY)；//IP

sin _ PORT ═ htons (SERVER _ PORT); // Port

Step 103: binding teacher's IP address

int bind (int sockfd, const struct sockaddr × addr, socklen _ t addrlen); step 104: building multicast attribute structures

struct ip_mreqn group；

#include<arpa/inet.h>

INET _ pton (AF _ INET, GROUP, imr _ multiaddr); // setting multicast addresses

net _ pton (AF _ INET, "0.0.0.0", "group.imr _ address); // setting local Address

group, im _ ifindex ═ if _ namejoin ("ent 0"); // setting up network card interface

Step 105: setting multicast authority and attribute of teacher end and student end in multicast network

setsockopt(sockfd,IPPROTO_IP,IP_MULTICAST_IF,&group,

sizeof (group)); // set multicast permissions and options

Step 106: further setting the multicast address of the student end

struct sockaddr_in cliaddr；

bzero(&cliaddr,sizeof(cliaddr))；

cliaddr.sin_family＝AF_INET；

inet_pton(AF_INET,GROUP,&cliaddr.sin_addr.s_addr)；

cliaddr.sin_port＝htons(CLIENT_PORT)；

Step 107: the teacher end sends data to the student end

sendto(sockfd,buf,strlen(buf),0,(structsockaddr*)&cliaddr,

sizeof (cliaddr)); // sending information to multicast address, returning data size

The invention realizes the construction and generation of the multicast network through the steps.

Example two

The present embodiment mainly describes the inventive concept of the present invention from a hardware perspective, and provides a system for switching student device accounts in an intelligent classroom throughout the shift, including: student end equipment, teacher end equipment and local area network who constitutes jointly thereof, its characterized in that before the teacher started the mode of giving lessons through the teacher end, carries out account number switching operation through switching module, account number switching operation includes: and switching classes, acquiring all student account IDs corresponding to the classes, and distributing the student account IDs in a UDP multicast mode.

Preferably, the distributing the student account numbers in a networking broadcast manner further includes:

Preferably, when the teacher end executes the account switching operation, the teacher end uploads a multicast message to a UDP server in the local area network, and the UDP server distributes the multicast message to the student end through network transmission; after receiving the distributed multicast message, the student end device stores the multicast and checks timestamp information of the received multicast message, compares the timestamp with the current time through a comparison module, judges that student account ID data in the multicast message is a vacant account if the time exceeds a preset time length, and skips the account to enter a next account distribution link.

Preferably, the step of implementing the UDP server to play the packets to the student side further includes: creating a UDP server socket, constructing a UDP server address structure, binding a teacher end address, constructing a multicast attribute structure, setting multicast authority and attributes of the student end and the teacher end, setting a student end multicast address to set a preset UDP multicast address, and then sending message data by the teacher end.

Preferably, the single-point switching module performs the account switching operation as a one-click operation, and the account switching of the students in the whole class is realized by a single click

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. It is therefore intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.

Claims

1. The method for switching account numbers of student equipment in an intelligent classroom during the whole class is characterized in that account number switching operation is executed before a teacher starts a class mode through a teacher end, and the account number switching operation comprises the following steps: switching classes, acquiring all student account IDs corresponding to the classes, distributing the student account IDs in a UDP multicast mode, wherein the distributing of the student account IDs in the multicast mode further comprises the following steps:

and step 3: repeating the step 2 until all student terminal equipment account numbers in the whole class are logged in;

the step of implementing the multicast of the student end by the UDP server further includes: creating a UDP server socket, constructing a UDP server address structure, binding a teacher end address, constructing a multicast attribute structure, setting multicast authority and attributes of the student end and the teacher end, setting a student end multicast address to set a preset UDP multicast address, and then sending message data by the teacher end.

2. The method according to claim 1, wherein a teacher end uploads a multicast message to a UDP server in the local area network while performing the account switching operation, and the UDP server distributes the multicast message to the student end through network transmission; after receiving the distributed multicast message, the student end device stores the multicast message and checks timestamp information of the received multicast message, compares the timestamp with the current time, judges that student account ID data in the multicast message is a vacant account if the time exceeds a preset time length, and skips the account to enter a next account distribution link.

3. The method for switching account numbers of student devices in an intelligent classroom according to any one of claims 1-2, wherein the account number switching operation is a one-click operation, and account number switching of students in the whole class is achieved through a single click.

4. The utility model provides a system for switching student's equipment account number throughout class of wisdom, includes: student end equipment, teacher end equipment and local area network who constitutes jointly thereof, its characterized in that before the teacher started the mode of giving lessons through the teacher end, carries out account number switching operation through switching module, account number switching operation includes: switching classes, acquiring all student account IDs corresponding to the classes, distributing the student account IDs in a UDP multicast mode, wherein the distributing of the student account IDs in the multicast mode further comprises the following steps:

5. The system according to claim 4, wherein a teacher end uploads a multicast message to a UDP server in the local area network while performing the account switching operation, and the UDP server distributes the multicast message to the student ends through network transmission; after receiving the distributed multicast message, the student end device stores the multicast message and checks timestamp information of the received multicast message, compares the timestamp with the current time through a comparison module, judges that student account ID data in the multicast message is a vacant account if the time exceeds a preset time length, and skips the account to enter a next account distribution link.

6. The system for switching account numbers of student devices in an intelligent classroom according to any one of claims 4-5, wherein the account number switching operation is a one-click operation, and account number switching of students in the whole class is realized by a single click.