WO2019075822A1 - 一种远程教学培训系统及访问控制方法 - Google Patents

一种远程教学培训系统及访问控制方法 Download PDF

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Publication number
WO2019075822A1
WO2019075822A1 PCT/CN2017/111813 CN2017111813W WO2019075822A1 WO 2019075822 A1 WO2019075822 A1 WO 2019075822A1 CN 2017111813 W CN2017111813 W CN 2017111813W WO 2019075822 A1 WO2019075822 A1 WO 2019075822A1
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Prior art keywords
teaching
server
user
access
headquarters
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PCT/CN2017/111813
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English (en)
French (fr)
Inventor
卢启伟
刘佳
陈鹏丞
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深圳市鹰硕技术有限公司
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Publication of WO2019075822A1 publication Critical patent/WO2019075822A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/20—Education
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
    • G09B5/14—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations with provision for individual teacher-student communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/55—Push-based network services

Definitions

  • the invention relates to the field of multimedia teaching technology, and relates to an internet-based distance teaching training system and an access control method, in particular to a distance teaching training system and an access control method suitable for an education training group. .
  • the existing distance learning training system and the distance learning training method can be referred to, for example, Japanese Laid-Open Patent Publication No. 2000-250392.
  • the open distance teaching training system and the distance learning training method disclose the contents of the lectures performed in the school, the company, the lecture, and the like as image data and sound data, and the data is provided to the listener at the remote place via the network.
  • a remote teaching training system and method is disclosed in the patent document WO2006/123780, in which the lecturer's speech content is distributed to a remote distribution system at a remote location, and the lecturer's profile is previously sent to the listener in the form of an animation file.
  • the terminal automatically distributes audio and video data at the same time as the presentation, so that it can be displayed in the audience terminal in real time.
  • Chinese Patent Application No. 201210529681.1 discloses a remote teaching live broadcast system, and the remote teaching live broadcast system provided by the invention can effectively solve the teaching resources in economically underdeveloped areas by adding simple equipment, especially the problem of scarce excellent educational resources. . Moreover, the technology is mature and the cost is low, which is very suitable for large-scale promotion and use.
  • Chinese patent application 201310050124.6 provides a method and device for processing distance learning data, which is applied to the teaching of computer program writing, which can improve the convenience and learning efficiency of the students.
  • the method for processing the remote teaching data disclosed includes: the server sends the webpage to the terminal, the webpage includes a computer program segment as an example of teaching; the server receives the computer program segment extracted by the terminal from the webpage and Executing the computer program segment and then executing The result of the line is sent to the terminal.
  • the learner who learns the computer program can directly run the sample program in the tutorial in the webpage without installing the programming environment and without manually inputting the sample program. Students can modify the sample program or compile the program and run it on the server. If the program provided by the student is wrong, the server can also give corresponding prompts. It is also possible to compare between various programming languages. All of the above will bring convenience to the students and help to improve learning efficiency and enhance learning.
  • a mobile internet distance learning platform is disclosed in CN103544856, including a teacher PC version client, a student mobile version client, and an operator management background.
  • the user can obtain the teacher list through the mobile terminal, and select the online teacher to start the audio and video live online teaching anytime and anywhere according to the need.
  • the solution can improve portability and convenience.
  • the above-mentioned distance learning training system has the following shortcomings.
  • the development concepts of such systems are based on the educational philosophy of remote teaching in the past. That is, the existing or on-site educational resources are transmitted remotely through the network. Because the resources that can be transmitted remotely in real time are limited, the courses and teaching resources that such distance learning systems can teach are often very limited.
  • the present invention provides a distance learning training system suitable for an educational training group, the distance learning training system comprising: a plurality of regional servers in different geographical locations, the regional server Having a teaching platform disposed in the regional server; a management control terminal, a teaching terminal, and a student terminal communicatively coupled to the teaching platform; wherein: the distance learning training system further includes two A two-way interactively connected headquarters server, that is, the headquarters server is configured to form a two-way interactive connection with the plurality of regional servers to implement uploading and downloading of educational resources between the two.
  • Each of the plurality of regional servers is configured to allow the teaching end and the student to interact with the teaching platform in the regional server in a two-way interaction independent of the headquarters server to implement interactive distance learning training .
  • the present invention adopts a two-level interactive architecture system of a headquarters server and a regional server.
  • the headquarters server By setting multiple regional servers in different geographical locations, the headquarters server only An interactive connection is formed with the plurality of regional servers, rather than being directly connected to the headquarters server by the teaching end and the student end as in the centralized architecture system employed in the prior art.
  • This overcomes the shortcomings of the user experience in the centralized architecture in which the end users in different regions have different teaching resources and services due to geographical differences in the centralized architecture.
  • each regional server can provide distance learning training services for the teaching terminal and the student terminal independently of the headquarters server, it will not have a global impact as in the prior art; further, because The regional server is able to interact with the headquarters server for teaching resources and computing power, thereby improving the existing system Insufficient limitations in teaching resources and computing power.
  • the plurality of regional servers and the headquarters server download the teaching resources from the headquarters server to the regional server or upload the generated resources of the regional server to the headquarters server according to a predetermined pushing rule or a command operation.
  • the headquarters server can push the teaching resources to the regional server according to the predetermined pushing rules when the network is idle, thereby avoiding the problem that the teaching resources cannot reach the local and affecting the teaching due to the network problem, and also reducing the teaching end in the prior art.
  • the teaching platform preferably includes a management service module, an audio-visual processing module and an audio-visual file management module that are communicatively connected to each other to implement access or operation of the management control terminal, the teaching terminal and the student terminal to the teaching platform.
  • the management control terminal issues a management instruction to the management service module to manage the operation of the audio processing module and the audiovisual file management module.
  • the teaching resources can be processed, stored and played in the form of audiovisual files in the teaching platform, so that the teaching resources can be provided to the instructor or the training students in a playable form, which is convenient for improving the teaching efficiency and the teaching effect, and is also convenient.
  • the teaching platform is used in conjunction with the currently widely used smart terminal devices, thereby improving the scalability and versatility of the teaching platform.
  • At least one instructional camera operable between the teaching platform and the teaching end operable via the teaching end for filming or playing an audiovisual file from the audiovisual processing module
  • the audiovisual file performs file interaction between the teaching camera and the audiovisual processing module bidirectionally.
  • the instructor can operate or use the teaching platform via the teaching terminal, so that the instructor can provide a virtual classroom teaching atmosphere, which is convenient for improving the immersion of the trained students, thereby contributing to the improvement of the training. Student's consumption experience.
  • the student end is preferably any one of the following: a computer, a notebook computer, a mobile phone or a tablet.
  • the method further includes: an access control system disposed between the headquarters server and the regional server, wherein the access control system includes an area control module disposed in the area server and a headquarters control module disposed in the headquarters server, where The area control module includes a data exchange module and The user access control module, wherein the data exchange module is respectively connected to the user access control module and the headquarters control module through a network.
  • the access control system includes an area control module disposed in the area server and a headquarters control module disposed in the headquarters server, where The area control module includes a data exchange module and The user access control module, wherein the data exchange module is respectively connected to the user access control module and the headquarters control module through a network.
  • the above access control system can provide a secure access method for resource sharing between the headquarters server and the regional server, enabling the franchisees that have built their own regional servers to utilize the education and training group's headquarters server in a more secure manner.
  • the resources on the site prevent internal data leakage such as customer information held by the franchisees from affecting the end users' convenience to share the resources of the headquarters server, which not only improves work efficiency, but also reduces the risk of daily operation of the owner of the regional server. Can achieve good economic benefits.
  • the data exchange module is configured to process an access request of a user with access rights, bind the access request to a corresponding rights account according to the permission, and then enable the user of the regional server to obtain the corresponding address of the headquarters server by using the rights account.
  • Service and teaching resources ;
  • the headquarters control module is configured to determine the legal user information of the regional server that requests the access, review the rights account information of the regional server, obtain the role information of the user account in the headquarters server, and provide corresponding teaching resources according to the permissions of the role. service;
  • the user access control module is configured to process an access request of a user of the regional server to the headquarters server, perform matching of the user attribute and the user access control policy, and determine the access permission of the access request to the headquarters server.
  • the headquarters server is accessed by using the rights account after the binding information in the regional server, instead of directly accessing the headquarters server directly by the teaching terminal or the student terminal, for example. Therefore, the headquarters server only obtains the related information of the rights account, and does not directly obtain the information of the teaching end or the student end. Therefore, the preferred embodiment can implement the anonymous protection function on the customer information in the regional server of the affiliate institution, and can achieve good Economic benefits.
  • the different teaching or student connected to the regional server is grouped into different group attributes, and the user access control module is configured to match the group attribute of the teaching or student with the user access control policy. If the matching is unsuccessful, the user's access is denied. If the matching is successful, the user access control module submits the user information and the access rights of the user to the data exchange module.
  • the administrator of the regional server can set the access rights of different teaching ends or students through the management terminal, thereby avoiding the lack of permission of the instructor and the training student to access the teaching resources of the headquarters server in an orderly manner, thereby ensuring The security of the teaching resources in the headquarters server.
  • the access rights include operations such as read-only, write-only, read-write, and the like.
  • an access control method for a distance learning training system comprising the steps of:
  • Step 1 The teaching end or the student end of the regional server submits an access request to the regional server, and the regional server determines whether the teaching resource or service can satisfy the request, and if not, proceeds to step 2;
  • Step 2 The user access control module reviews the information of the teaching end or the student end to determine whether the teaching end or the student end is a legitimate user of the regional server, and if not, rejects the access request. If yes, proceed to step 3;
  • Step 3 The user attribute of the teaching end or the student end is matched with the user access control policy in the user access control module; if the matching is unsuccessful, the user's access is denied; if the matching is successful, the process proceeds to step 4;
  • Step 4 The user access control module submits the information of the teaching end or the student end and the access right thereof to the data exchange module according to the user attribute, thereby proceeding to step 5;
  • Step 5 The data exchange module temporarily stores the received information, and determines the access authority of the submitted teaching end or the student end, and then proceeds to step 6;
  • Step 6 Bind the corresponding rights account to the information, use the bound rights account to access the headquarters server, and then proceeds to step 7;
  • Step 7 After receiving the access request from the rights account in the regional server, the headquarters control module first checks the legal user information of the regional server to determine whether it is a legitimate user. If the regional server is illegal, the device rejects Accessing the request, and sending the denied access prompt to the data exchange module; if the regional server is legal, then the headquarters control module audits whether the account information of the authorized account that is requested to access belongs to the regional server; if not, the access is denied Request, and send the denied access prompt to the data exchange module; if yes, proceed to step 8;
  • Step 8 The data exchange module returns the information of the access request success to the teaching end or the student end, and the role information of the rights account is obtained by the headquarters server, and then the operation flow proceeds to step 9;
  • Step 9 The headquarters server provides corresponding teaching resources or services to the teaching terminal or the student terminal according to the access rights with the role of the rights account.
  • the above access control method can be used for the cooperation between the headquarters server and the regional server.
  • Source sharing provides a way to securely access the franchisees that have built their own regional servers to take advantage of resources on the headquarters of the Education and Training Group in a more secure way to prevent customer information held by the franchisees.
  • Internal data leakage does not affect the convenience of its end users to share the resources of the headquarters server, which not only improves work efficiency, but also reduces the risk of daily operation of the owner of the regional server, and can achieve good economic benefits.
  • FIG. 1 is a schematic diagram of the overall architecture of a distance learning training system of the present invention
  • FIG. 2 is a schematic structural diagram of a teaching platform of the present invention
  • FIG. 3 is a block diagram of an access control system of the present invention.
  • FIG. 4 is a flow chart of an access control method of the present invention.
  • FIG. 1 a general architectural diagram of a distance learning training system in accordance with a preferred embodiment of the present invention is disclosed.
  • the function of each functional module is represented by a graphic of the component.
  • Technical interrelationships between each other are shown in FIG. 1, a general architectural diagram of a distance learning training system in accordance with a preferred embodiment of the present invention.
  • a distance learning training system includes a plurality of regional servers 1 in different geographical locations, and a teaching platform 2 respectively correspondingly disposed in each regional server 1, wherein the teaching platform 2 Communicatingly connected to the management control terminal 4, the teaching terminal 5, and the student terminal 6 respectively; wherein the distance learning training system further includes a headquarters server 3 that is two-wayly and interactively connected to the plurality of regional servers 1 in a two-level interactive architecture manner, That is, the headquarters server 3 is configured to form a two-way interactive connection with the plurality of regional servers 1 to implement uploading and downloading of educational resources between the two, each of the plurality of regional servers 1
  • the teaching terminal 5 and the student 6 are allowed to operate in two-way interaction with the teaching platform 2 in the regional server 1 independently of the headquarters server 3 to implement interactive distance learning training.
  • the term "educational training group” in the meaning of the present invention refers to a group company engaged in teaching and training business, which comprises a consortium of vertical organization system composed of a headquarters and branches scattered in different geographical locations.
  • the term "two-level interactive architecture" includes an architectural approach consisting of a first-level interaction consisting of interactions between a headquarters server and a regional server and a second-level interaction consisting of interactions between the regional server and the end user. The first level interaction and the second level interaction are independent of each other.
  • the term “interactive” means that information or resources are transmitted, read or utilized bi-directionally between two components of the distance learning training system of the present invention.
  • regional server refers to a server that serves as an area computing center that serves as an end user individual, with the ability to independently provide teaching resources to end user individuals to enable distance learning training.
  • headquarters server refers to a server that acts as a public computing center that serves only the regional server and provides teaching resources or services to it.
  • the regional server and the headquarters server may adopt a blade server or a rack server produced by Oracle or Sun, that is, different from the concept of a centralized architecture, and the present invention mainly establishes a headquarters.
  • the computing system coexisting between the server and the regional server provides corresponding teaching resources and services for end users in different regions and different needs.
  • the plurality of regional servers 1 are, for example, servers of a subsidiary or branch office or an office of an affiliate institution disposed in respective regions of the educational training group, and the server has a server.
  • the server has a server.
  • the headquarters server 3 is an office located at the headquarters of the education and training group.
  • the server of the district which serves as a service platform, brings together all the existing teaching resources of the education and training group, and has a storage space and processing capability far larger than that of the regional server, and a two-way interactive connection is formed between the regional server 1 and the headquarters server 3 to Realize the uploading and downloading of educational resources between the two.
  • the headquarters server acts as a higher-level server of the regional server, which provides the regional server with the new educational resources it needs and can provide a certain storage space for the regional server to store the educational resources already existing in the regional server;
  • the regional server serves as a sub-platform under the head office server, each of which is configured to allow the teaching end 5 and the student end 6 to interact with the teaching platform 2 in the regional server 1 in two-way operation independently of the headquarters server to implement Interactive distance learning training.
  • the headquarters server 3 actively pushes the teaching resources to the respective regional servers 1 according to the push rules according to a predetermined push mechanism, for example, in the case where the nighttime network communication bandwidth is rich.
  • a predetermined push mechanism for example, in the case where the nighttime network communication bandwidth is rich.
  • the teaching resources to be used can be downloaded from the headquarters server to the regional server according to the instructional operation of the teaching terminal or the management control terminal received by each regional server. That is to say, the regional server is used to receive learning resources from the headquarters server for local teachers to use.
  • the regional server may also upload the locally received or generated resources to the headquarters server according to a certain transmission mechanism to store the educational resources in the headquarters server 3.
  • the interactive resources with a small amount of data in the regional server may be synchronously uploaded to the headquarters server during the real-time interaction between the teaching end and the student end; and the network bandwidth is limited or the amount of resource data is limited.
  • the resources used for teaching can be saved to the storage space built in the regional server for storage; when the network bandwidth is rich, it is asynchronously uploaded to the headquarters server for storage. This not only ensures the potential impact of network bandwidth changes on classroom teaching, but also reduces the network delay and congestion that the teaching and student terminals interact directly with the headquarters server.
  • FIG. 1 A schematic diagram of the architecture of a regional server in accordance with the present invention is shown in FIG.
  • the teaching platform 2 includes: a management service module 21, a sound image processing module 22, and an audiovisual file management module 23, wherein the management service module 21, the audiovisual processing module 22, and the audiovisual file management module 23 have mutually appropriate
  • the communication connection is as shown by the two-way arrow in FIG.
  • the area server 1 provides the teaching platform 2 with a working environment that can be connected and operated with external communication.
  • the management control terminal 4 the teaching terminal 5
  • the student terminal 6 is capable of communicating to the teaching platform via a wired or wireless network to enable access or operation of the teaching platform.
  • the regional server 1 can be connected to the headquarters server 3 via network communication, the teaching platform 2 can access or obtain the teaching resources from the headquarters server 3 via the regional server 1.
  • a system administrator of a subsidiary or branch office or affiliate institution in each of the different geographical locations can operate or use the teaching platform 2 via the management console 4, such as the one-way arrow in FIG. As shown.
  • the system administrator may choose to use a conventional personal computer or a smart phone and operate the teaching platform 2 using an application such as an application (APP) or a web page click from the management console 4
  • the management command can be sent to the management service module 21 to further manage the operation audio processing module 22 and the audiovisual file management module 23.
  • the instructor for example, a training teacher or a lecturer
  • the instructor can operate or use the teaching platform 2 via the teaching terminal 5, such as the two-way arrow shown in FIG. 2, as a preferred example, the instructor can At least one instructional camera 51 operable through the teaching terminal 5, which is disposed at a predetermined location (e.g., a classroom), is used to film or play an audiovisual file for teaching.
  • the audiovisual file can be filed between the instructional camera 51 and the audiovisual processing module 22, for example, in the manner of a two-way arrow as shown in FIG.
  • At least one training student can use the student terminal 6 to operate and use the teaching platform 2, such as the two-way arrow shown in FIG.
  • the training student may use a conventional personal computer or a mobile device such as a tablet or a smart phone, and operate the teaching platform 2 or accept audio, for example, from the teaching platform 2, by using an application or a web page.
  • the files are played locally, so that the audiovisual materials from the teaching platform 2 can be viewed to achieve the teaching purpose.
  • students can also convert their own problems into audio-visual files and upload them to audio-visual files and upload them to the teacher at the teaching terminal 5 to realize the teacher and Distance learning interaction between students.
  • the function provided by the management service module 21 includes: a function module provided with a related setting for the management console 4 to set such as access rights, login password, user identification, etc.; and the audiovisual processing module 22 Communication to issue an instance Functions such as video and audio processing control commands; communication with the audiovisual file management module 23 to implement file transfer and storage.
  • the function provided by the audio processing module 22 includes: performing dynamic or static recording and recording and performing multimedia compression decoding on the recorded audio and image files.
  • the functions of the audiovisual file management module 23 include: a function of storing or reading a recorded audio image and a compressed document file, and dynamically uploading the audio image and the document file to the area server 1 according to an external command.
  • the respective functions of the management service module 21, the audiovisual processing module 22, and the audiovisual file management module 23 can be implemented by electronically or software programming to form functional modules. Such an implementation is known in the prior art. , no longer repeat them here.
  • the operation of the distance education training system of the educational training group of the present invention will be described below by taking the operation of the single regional server 1 and the headquarters server 3 as an example.
  • the instructor trains the student via the teaching terminal 5 to connect to the teaching platform 2 via the student terminal 6, the connection being made, for example, by logging in a username and password.
  • the management service module 21 identifies and verifies the login user name and password according to the setting of the management console 4, and allows the instructor and the trained student to connect to the teaching platform 2 if the verification is passed.
  • the instructor can realize the teaching process by transmitting the teaching audio and video and the document to the student 6 of the plurality of students by means of the teaching camera 51, the audiovisual processing module 22, and the audiovisual file management module 23.
  • the training student can realize the teaching feedback and interaction by sending the documents such as questions or test paper feedback to the teaching end by means of the student terminal 6, the audio-visual processing module 22 and the audio-visual file management module 23. This completes the communication process of distance learning.
  • the instructor can issue an instructional operation requesting access to the headquarters server 3 to the teaching platform 2 via the teaching terminal 5 to request that the teaching resources to be used be downloaded from the headquarters server to the area.
  • the server, the teaching platform 2 processes the instructional operation and converts it into a signal that the headquarters server 3 can recognize.
  • the teaching resource numbered aaa is pushed to the regional server numbered ccc in the bbb time period.
  • the headquarters server 3 After identifying the signal, the headquarters server 3 performs packet processing on the resource requested for download, and actively pushes the packaged resource to the target area server 1 as needed according to a certain push rule.
  • the teaching platform After reading the teaching resource file downloaded to the regional server 1, the teaching platform establishes an information connection between the teaching terminal 5 and the student terminal 6 through the teaching platform in the above manner, thereby completing the communication process of the distance learning.
  • the local area service is made.
  • the teaching platform on the server can be used to the headquarters server via the network connection, thereby improving various limitations in the prior art that are limited by limited server resources and geographical differences in the network.
  • the respective regional servers 1 located in different geographical locations are affiliated institutions belonging to the educational training group, there is a need to use the teaching information of the teaching terminal 5 and the student 6 and the customer information of the training student as rich.
  • the resources of commercial value are not expected to be disclosed to the headquarters of the Education and Training Group. This is determined by the characteristics of the franchise system between the franchisee and the headquarters. In view of this, it is necessary to establish such an isolation mechanism between the headquarters server 3 and the regional server 1: 1.
  • the teaching terminal 5 and the student terminal 6 of the regional server 1 do not affect the resources of the headquarters server; 2.
  • the headquarters server does not acquire User information for instructors and trainees who perform the above operations.
  • the present invention preferably further provides an access control system which will be described in detail hereinafter between the head office server 3 and the area server 1.
  • an access control system between a head office server and a regional server is shown in FIG. 3, wherein the access control system includes an area control module 11 disposed in the area server 1 and is disposed at the headquarters.
  • the area control module 11 includes a data exchange module 111 and a user access control module 112, wherein the data exchange module 111 is respectively connected to the user access control module 112 and the headquarters control module 3 through a network.
  • the data exchange module 111 is configured to process an access request with an access authority user, bind to a corresponding rights account according to its authority, and enable the user of the area server 1 through the rights account. Get the corresponding service and teaching resources of the headquarters server 3.
  • the headquarters control module 31 is configured to determine the number information of the area server 1 that is requested to access, review the rights account information of the area server, obtain the role information of the user account in the headquarters server 3, and provide relevant teaching resources according to the rights of the role. and service.
  • the user access control module 112 is configured to process the access request of the instructor and the training student in the regional server 1 to the headquarters server 3 by using the teaching terminal 5 and the student terminal 6, and perform user attributes and users of the teaching terminal 5 and the student terminal 6.
  • the matching of the access control policies determines the access rights of the access requests from the teaching terminal 5 and the student terminal 6 to the headquarters server 3.
  • the access control operation principle of the above access control system will be exemplarily described below by way of example.
  • each affiliate organization has built its own regional server 1, each regional server 1 in daily In the work, it is necessary to access the teaching resources of the headquarters server 3 of the group headquarters and occupy a certain storage space of the headquarters server.
  • the regional server 1 of the affiliate institution first applies to the headquarters server 3, becomes a legitimate user of the headquarters server through the registration process, and registers legal user information, wherein the legal user information includes the name or font size, address, contact information, and the like of the affiliate institution. Basic number information.
  • there are multiple rights accounts with different permission attributes such as but not limited to read-only, write-only, read-write, etc.: User_Read, User_Write, and User_Operation. These rights accounts include account name, password, permission information, and information about the regional server.
  • the authorized user administrator creates a user account with the same account name and password as the rights account of the regional server 1 in the headquarters server 3 according to the rights account in the regional server 1, that is, the account of each regional server 1 in the headquarters server 3. Then, according to the rights possessed by the rights account having the same account name and password as the user account, each user account is given a corresponding role, and each role corresponds to a corresponding set of rights.
  • the headquarters server 3 stores the legal user information and the user account information on the headquarters server 3, and provides corresponding resources and services according to the rights of the role of the user account.
  • the user account information includes an account name, a password, legal user information of the slave regional server, and role information.
  • the user accounts created by the authorized user administrators are the user accounts assigned to the regional servers 1, and the legitimate user administrators are the accounts of the legitimate servers that are assigned by the headquarters server 3 to each legitimate user. It manages user accounts and various transactions belonging to the own regional server 1 in the headquarters server 3.
  • the authorized user administrator creates a user account User_Read with the same account name and password as the rights account User_Read in the headquarters server 3 according to the rights account User_Read in each regional server 1.
  • the account User_Read has only the right to read the teaching resources, so the user account C_Read is given a role with only Read permission.
  • the different teaching terminals 5 or the student terminals 6 connected thereto are grouped into different group attributes, such as, but not limited to, read-only "R”, write-only "W” ", read and write operations are given "O” and so on. The entire operation process will be described in detail below:
  • step 1 the instructor or the training student makes an access to the regional server 1 built by the affiliate institution via the teaching terminal 5 or the student terminal 6 connected to the regional server 1 of a certain affiliate institution.
  • step 2 For the request of the detailed information of the teaching resource A, only the local image of the teaching resource A is saved in the regional server 1, and the detailed information is obtained from the headquarters server 3, and the operation flow proceeds to step 2.
  • step 2 the user access control module 112 reviews the information of the teaching terminal 5 or the student terminal 6 to determine whether it is a legitimate user in the regional server 1, that is, whether the person is the affiliate institution. Sign a teacher or train a student. If not, the access request is rejected. If yes, the operation flow proceeds to step 3.
  • step 3 if the user access control module 112 detects that the teaching terminal 5 or the student terminal 6 is a legitimate user in the regional server 1, the user attribute is in the user access control module 112 and the user access control policy. Matching is performed; if the matching is unsuccessful, the user's access is denied; if the matching is successful, the operation flow proceeds to step 4.
  • the preferred policy role in the user access control policy in the user access control module 112 is: if the group attribute of the user attribute is "R", the user is allowed to access the teaching resource A in the headquarters server 3, and the access rights are only For reading. If the access request of the user is a request to read and write the teaching resource A in the headquarters server 3, the access requested by the user is rejected. Therefore, when the user access module 112 detects that the group attribute of the user attribute of the teaching end 5 or the student end 6 requesting access is “R”, the user attribute of the teaching end 5 or the student end 6 matches the user access control policy successfully. The user is allowed to access the teaching resource A in the headquarters server 3 via the teaching terminal 5 or the student terminal 6, and the access authority is only reading.
  • the matching result in step 4 is that the teaching end 5 or the student end 6 has the read permission to the teaching resource A in the head office server 3, and then the user access control module 112 will the teaching end 5 or
  • the information of the student terminal 6 and the read-only permission of the teaching terminal 5 or the student terminal 6 to the teaching resource A in the headquarters server 3 are submitted to the data exchange module 111, and the submission log is recorded, so that the operation flow proceeds to step 5.
  • step 5 the data exchange module 111 temporarily stores the received information of the teaching terminal 5 or the student terminal 6 and submits the teaching terminal or the student terminal 6 submitted by the user access control module 112 to the headquarters server 1
  • the reading authority of the teaching resource is judged, and the permission account User_Read having only the reading authority is selected in the area server 3, and then the operation flow proceeds to step 6.
  • step 6 the information of the teaching terminal 5 or the student terminal 6 is bound to the authority account User_Read, and then the authority account User_Read accesses the headquarters server 3, so that the operation flow proceeds to step 7.
  • step 7 after receiving the access request from the rights account User_Read in the area server 1, the headquarters control module 31 first checks the legal user information of the area server 1 to determine whether it is a legitimate user, if the area is If the server is not legal, the access request is denied, and the access denied prompt is sent to the data exchange module 111. If the regional server 1 is legal, after determining that the regional server 1 is a legitimate user, the headquarters control module is followed by 31, the permission account access User_Read account information belongs to the legal user, that is, the regional server 1; if not, the access request is rejected, and the access denied prompt is sent to the data exchange module 111; if yes, the operation flow proceeds to the step 8.
  • step 8 the privilege account User_Read information requesting access is approved, that is, the privilege account User_Read requesting access belongs to the legitimate user in the headquarters server 3, and the data exchange module 111 binds the information to the privilege account User_Read.
  • the teaching terminal 5 or the student terminal 6 returns the information indicating that the access request is successful, and the role information of the rights account is obtained by the headquarters server 3, and then the operation flow proceeds to step 9.
  • the headquarters server 3 provides corresponding teaching resources or services to the teaching terminal 5 or the student terminal 6 according to the access authority of the user account User_Read having the same account name and password as the rights account User_Read, due to the headquarters.
  • the role to which the user account User_Read in the server 3 belongs has only the read permission to the teaching resource A in the headquarters server 3, so the headquarters server 3 only allows the teaching terminal 5 or the student terminal 6 to read the content of the teaching resource A, and It is not allowed to modify or write to the teaching resource A.
  • the headquarters server Since the headquarters server is only accessed by the permission account User_Read, it obtains the relevant information of the rights account, and does not directly obtain the information of the teaching terminal 5 or the student terminal 6 (ie, the information of the instructor or the training student), Anonymous protection of customer information in the regional server of the affiliate.
  • the head office server 3 is accessed by using the rights account after the binding information in the area server 1, instead of directly accessing the head office server 3 directly by the teaching terminal 5 or the student terminal 6, for example.
  • This allows the headquarters server 3 to obtain only the relevant information of the rights account, and does not directly obtain the information of the teaching terminal 5 or the student terminal 6. Therefore, the preferred embodiment can implement the anonymous protection of the customer information in the regional server 1 of the affiliate institution. The role can achieve good economic benefits.
  • the above access control system and access control method can be used for the headquarters server and Resource sharing between regional servers provides a means of secure access, enabling affiliates that have built their own regional servers to use resources on the headquarters of the Education and Training Group in a more secure manner to prevent affiliates from holding Some internal data leakage such as customer information does not affect the convenience of the end users to share the resources of the headquarters server, which not only improves work efficiency, but also reduces the risk of daily operation of the owner of the regional server, and can achieve good economic benefits.
  • the above access control method can provide a secure access mode for resource sharing between the headquarters server and the regional server, and enables the franchisees who have built their own regional servers to utilize the education and training group in a safer manner.
  • the resources on the headquarters server prevent internal data such as customer information held by the franchisee from leaking, without affecting the end users' convenient sharing of resources of the headquarters server, which not only improves work efficiency, but also reduces the daily operation of the owner of the regional server. The risks can achieve good economic benefits.

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Abstract

一种远程教学培训系统及访问控制方法，包括：处于不同地理位置的多个区域服务器（1），区域服务器（1）具有：设置在区域服务器（1）中的教学平台（2）；与教学平台（2）通信连接的管理控制端（4）、教学端（5）和学生端（6）。远程教学培训系统还包括与多个区域服务器（1）网络通信连接的总部服务器（3）以实现总部服务器（3）与多个区域服务器（1）之间的资源共享，其中总部服务器（3）被构造为经由网络通信连接向教学平台（2）提供教学资源。由此克服了集中式架构中由于网络存在地域差异而带来的不同地域的终端用户得到的教学资源和服务存在差别的用户体验的缺陷，改善教学资源和计算能力受限的不足。

Description

一种远程教学培训系统及访问控制方法 技术领域
本发明涉及多媒体教学技术领域，涉及一种基于互联网的远程教学培训系统及访问控制方法，具体来说涉及一种适用于教育培训集团的远程教学培训系统及访问控制方法。.
背景技术
随着信息通信技术的发展，推动了远程教学培训技术的提高。现有的远程教学培训系统以及远程教学培训方法例如可以参见日本特开2000-250392号公报。其中公开的远程教学培训系统以及远程教学培训方法将在学校内部、公司内部、演讲会等进行的演讲内容作为影像数据、声音数据进行获取并将所述数据经由网络提供给远程地点的听讲者。
实践中发现存在以下不足：讲师通常需要面向用于进行远程录像的终端装置进行演讲，同时还需要由其进行点击操作以运行传播程序的限制，这使得讲师的操作负担大，而在听众侧则存在现场感差等不足。
为此，在专利文献WO2006/123780中披露了一种远程教学培训系统和方法，其中将讲师的演讲内容分发给在远程地点的远程分发系统，事先将讲师资料以动画文件的形式发给听讲者终端，在演讲开始同时自动分发音频和视频数据，从而可以实时地在听讲者终端进行显示。
在此之后，随着互联网的迅猛发展，催生了更多利用互联网技术来进行远程教学培训的系统和方法。
例如，中国专利申请201210529681.1公开了一种远程教学直播系统，所述发明提供的远程教学直播系统通过增加简单的设备，可以有效的解决经济欠发达地区教学资源，尤其是稀缺的优秀教育资源的问题。而且技术成熟，成本低廉，十分适用于大规模推广和使用。
又如，中国专利申请201310050124.6提供了一种远程教学数据的处理方法和装置，应用于计算机程序编写的教学，能够提高学员学习的方便性和学习效率。其中公开的远程教学数据的处理方法包括：服务器将网页发送给终端，所述网页中包含有作为教学示例的计算机程序段；服务器接收所述终端从所述网页中提取的所述计算机程序段并执行所述计算机程序段，然后将执 行结果发送给所述终端。根据所述技术方案，学习计算机程序编写的学员可以在网页中直接运行教程中的示例程序，无需安装编程环境并且无需手工输入所述示例程序。学员可以修改示例程序或者自己编制程序并交同服务器运行，在学员提供的程序存在错误的情况下，服务器还能够给出相应的提示。另外还可以进行各种编程语言之间的比较。以上这些都在给学员带来方便的同时，有助于提高学习效率、增强学习效果。
再如，在CN103544856中公开了一种移动互联网远程教学平台，包括教师PC版客户端，学生手机版客户端、运营商管理后台。根据其所披露的远程教学平台系统，使得用户能够通过移动终端获取教师列表，并根据需要选择在线的教师随时随地开始音视频真人在线教学。所述方案可提高便携性和方便性。
然而，上述远程教学培训系统存在以下不足，这类系统的开发理念均是基于以往远程教学的教育理念。即，将已有的或现场制作的教育资源通过网络的方式进行远程传播。由于能够实时远程传播的资源是有限的，因此这种远程教学系统所能够传授的课程和能提供的教学资源往往是非常有限的。
与此同时，随着生活节奏的加快，人们往往希望能够在一家机构接受各种类型的培训：例如小学、初中、高中、英语、电脑技术等等。顺应这种趋势，各种大型的教育培训集团应运而生，例如学而思、巨人、新东方等等集团公司。这类集团公司的运营有以下几个特点：1.全国化经营，在各个地方都设有多个分公司、子公司和数量繁多的加盟机构，需要克服不同地域所带来的网络服务上的差异，例如服务的速度、安全性和可靠性；2.教学资源海量，需要根据开设的科目预制很多教学资源，以用于与全国范围的用户在线交互；3.用户信息数据的安全性和隐私性难于得到保障。对于这类集团公司来说，现有的例如采用统一的运营后台，采用所谓的“集中式架构并管理”，使整个集团的运营系统处在一个地理位置，然后使所有用户均直接与所述运营后台进行教学资源交互是明显不令人满意的，包括：1.各个用户终端处的设备的教学资源往往受限于终端的硬件、储存能力和计算能力，不能满足实际需求。2.由于网络的地域差异，对于不同城市的子公司或加盟机构的终端用户得到运营系统的教学资源和服务的响应速度存在差别；3.一旦集团的运营系统发生故障或者需要进行维护，导致产生全局性影响；4.教学资源的传 输过程中容易出现阻塞，影响教学质量；5.集团总部会掌握所有终端用户的客户信息，这在某些情况下是人们所不期望发生和不愿意接受的。
申请人在此声明，以上部分中陈述的仅为申请人所知晓的技术内容。上述内容仅仅提供了涉及本公开相关的背景信息但并不必然构成本申请的现有技术。
鉴于此，如何提供一种适用于教育培训集团的远程教学培训系统以满足当前存在的市场需求，是当前远程教学技术领域的开发人员急待解决的技术问题。
发明内容
为了克服现有技术中存在的不足，本发明提供了一种远程教学培训系统，其适用于教育培训集团，所述远程教学培训系统包括：处于不同地理位置的多个区域服务器，所述区域服务器具有：设置在所述区域服务器中的教学平台；与所述教学平台通信连接的管理控制端、教学端和学生端；其中：所述远程教学培训系统还包括与所述多个区域服务器以两级交互式架构的方式双向交互连接的总部服务器，即，所述总部服务器被构造为仅与所述多个区域服务器之间形成双向交互连接以实现教育资源在两者间的上传和下载，所述多个区域服务器中的每一个均被构造为独立于所述总部服务器地允许所述教学端和所述学生端与所述区域服务器中的教学平台双向交互操作以实现互动式的远程教学培训。
不同于传统的远程教学培训系统中所采用的集中式架构系统，本发明采用的是总部服务器和区域服务器两级交互式架构系统，通过在不同的地理位置处设置多个区域服务器，总部服务器仅与所述多个区域服务器之间形成交互连接，而不是如现有技术中所采用的集中式架构系统那样由教学端和学生端直接与总部服务器进行交互连接。这样就克服了集中式架构中由于网络存在地域差异而带来的不同地域的终端用户得到教学资源和服务存在差别的用户体验度差的缺陷。同时，即使总部服务器发生故障或者进行维护时，由于各个区域服务器能够独立于总部服务器为教学端和学生端提供远程教学培训服务，因此不会如现有技术那样出现全局性的影响；进一步，由于区域服务器能够与总部服务器进行教学资源和计算能力的交互，从而改善了现有系统 中教学资源和计算能力受限的不足。
优选地，所述多个区域服务器和总部服务器之间根据预定的推送规则或者指令性操作将教学资源从总部服务器下载到区域服务器或将区域服务器的生成的资源上传到总部服务器。
据此，总部服务器可以在网络空闲时按照预定的推送规则将教学资源推送给区域服务器，避免了因网络问题导致教学资源不能到达本地而影响教学的问题，同时还减少了现有技术中教学端和学生终端直接与集中架构式中的总服务器交互所导致的网络延迟和拥堵。
优选地，所述教学平台优选地包括彼此间相互通信连接的管理服务模块、音像处理模块和音像文件管理模块以实现所述管理控制端、教学端和学生端对教学平台的访问或操作，所述管理控制端向所述管理服务模块发出管理指令以管理操作所述音像处理模块和音像文件管理模块。
据此，可以将教学资源以音像文件的形式在教学平台内处理、存储和播放，从而将教学资源以可播放的形式提供给授课教师或者培训学生，这便于提高授课效率和教学效果，也便于教学平台与目前广泛使用的智能终端设备配套使用，从而提高了教学平台的可扩展性和通用性。
优选地，还优选地包括可经由所述教学端操作的、设置在所述教学平台和所述教学端之间的至少一个教学摄像机以用于摄制或者播放音像文件，来自所述音像处理模块的音像文件双向地在所述教学摄像机与所述音像处理模块之间进行文件交互。
据此，授课教师可以经由所述教学端操作或使用所述教学平台，以便由所述授课教师提供一种虚拟的教室教学的氛围，这样便于提高受训学生的浸入感，从而有助于提高培训学生的消费体验。
优选地，所述学生端优选为以下中的任一种：计算机、笔记本电脑、手机或平板。
据此，这样便于培训学生能够克服在时间和空间上的障碍，随时随地的能够与所述教学平台进行交互连接。
优选地，：还包括设置在所述总部服务器和区域服务器之间的访问控制系统，其中所述访问控制系统包括设置在区域服务器中的区域控制模块和设置在总部服务器中的总部控制模块，所述区域控制模块包括数据交换模块和用 户访问控制模块，其中所述数据交换模块通过网络分别与用户访问控制模块和总部控制模块连接。
采用以上访问控制系统能够为总部服务器与区域服务器之间的资源共享提供一种安全访问的方式，能够使构建了自身区域服务器的加盟机构通过一种更安全的方式去利用教育培训集团的总部服务器上的资源，防止加盟机构自身所持有的客户信息等内部数据泄露，而不影响其终端用户方便共享总部服务器的资源，既提高工作效率，又减少了区域服务器的所有者的日常经营的风险，能够实现好的经济效益。
优选地，所述数据交换模块用于处理具有访问权限的用户的访问请求，根据其权限将访问请求绑定到相应的权限账号，再通过所述权限账号使区域服务器的用户能够得到总部服务器相应的服务和教学资源；
所述总部控制模块用于判断请求访问的区域服务器的合法用户信息，审核所属区域服务器的权限账号信息，获取总部服务器中用户账号所属的角色信息，根据角色带有的权限提供相应的教学资源和服务；
所述用户访问控制模块用于处理区域服务器的用户对总部服务器的访问请求，进行用户属性和用户访问控制策略的匹配，判定所述访问请求对总部服务器的访问权限。
据此，通过利用区域服务器中的绑定信息后的权限账号访问总部服务器，而不是例如直接由教学端或学生端直接访问总部服务器。这使得，总部服务器只得到权限账号的相关信息，并没有直接得到教学端或学生端的信息，因此所述优选实施例能实现对加盟机构的区域服务器中的客户信息进行匿名保护作用，能够实现好的经济效益。
优选地，使连接至区域服务器的不同教学端或学生端分组地被赋予不同的组属性，将所述用户访问控制模块构造成将所述教学端或学生端的组属性与用户访问控制策略进行匹配，如匹配不成功，则拒绝用户的访问，若匹配成功，则所述用户访问控制模块将用户信息和用户的访问权限提交到所述数据交换模块。
据此，能够由区域服务器的管理者经由管理端实现对不同教学端或学生端的访问权限进行设定，避免缺乏权限的授课教师和培训学生无序地对总部服务器的教学资源进行访问，从而保证了总部服务器中的教学资源的安全。
优选地，所述访问权限包括只读、只写、读写等操作。
据此，能够满足终端用户对总部服务器中的教学资源的各种操作需求。
优选地，提供一种根据本发明的远程教学培训系统的访问控制方法，其特征在于，包括以下步骤：
步骤1：某一区域服务器的教学端或者学生端向所述区域服务器提出访问请求，所述区域服务器判断其教学资源或服务是否能够满足所述请求，若否，则进入步骤2；
步骤2：由用户访问控制模块对所述教学端或者学生端的信息进行审核，判断所述教学端或者学生端是否为所述区域服务器的合法用户，若否，则拒绝所述访问请求。若是，则进入步骤3；
步骤3：将所述教学端或者学生端的用户属性在用户访问控制模块中与用户访问控制策略进行匹配；若匹配不成功，则拒绝用户的访问；若匹配成功，则进入步骤4；
步骤4：用户访问控制模块根据用户属性将所述教学端或学生端的信息和其访问权限提交到数据交换模块，从而进入到步骤5；
步骤5：数据交换模块将接收到的信息进行暂存，并对提交过来的所述教学端或学生端的访问权限进行判断，然后进入步骤6；
步骤6：将选择相应的权限账号与信息进行绑定，使用绑定后的权限账号访问总部服务器，然后进入步骤7；
步骤7：总部控制模块接收到来自区域服务器中的权限账号的访问请求后，先核实所述区域服务器的合法用户信息，确定其是否为合法用户，若所述区域服务器为不合法的，则拒绝访问请求，并将拒绝访问提示发送给数据交换模块；若所述区域服务器为合法的，接着由总部控制模块审核请求访问的权限账号的账号信息是否属于所述区域服务器；若否，则拒绝访问请求，并将拒绝访问提示发送给数据交换模块；若是，则进入步骤8；
步骤8：数据交换模块向教学端或学生端返回访问请求成功的信息并由总部服务器获取所述权限账号的角色信息，然后操作流程进入步骤9；
步骤9：总部服务器根据与权限账号的所属角色带有的访问权限，向所述教学端或学生端提供相应的教学资源或服务。
据此，采用以上访问控制方法能够为总部服务器与区域服务器之间的资 源共享提供一种安全访问的方式，能够使构建了自身区域服务器的加盟机构通过一种更安全的方式去利用教育培训集团的总部服务器上的资源，防止加盟机构自身所持有的客户信息等内部数据泄露，而不影响其终端用户方便共享总部服务器的资源，既提高工作效率，又减少了区域服务器的所有者的日常经营的风险，能够实现好的经济效益。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单的介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据本发明实施例的内容和这些附图获得其他的附图。
图1是本发明的远程教学培训系统的总体架构示意图；
图2是本发明的教学平台的架构示意图；
图3是本发明的访问控制系统的架构图；和
图4是本发明的访问控制方法的流程图。
附图标记列表
1区域服务器 2教学平台 3总部服务器 4管理控制端 5教学端 6学生端 21管理服务模块 22音像处理模块 23音像文件管理模块 51教学摄像机 31总部控制模块 111区域控制模块 112用户访问控制模块
具体实施方式
下面将结合附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明的实施例，本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1所示，其中公开了根据本发明的优选实施例的远程教学培训系统的总体架构示意图。在图1中，以组件的图形来表示各个功能模块的功能和 相互间的技术关联。请参见本申请的图1，根据本发明的远程教学培训系统包含处于不同地理位置的多个区域服务器1、分别对应地设置在每一个区域服务器1中的教学平台2，其中所述教学平台2分别通信连接到管理控制端4、教学端5、学生端6；其中所述远程教学培训系统还包括与所述多个区域服务器1以两级交互式架构的方式双向交互连接的总部服务器3，即，所述总部服务器3被构造为仅与所述多个区域服务器1之间形成双向交互连接以实现教育资源在两者间的上传和下载，所述多个区域服务器1中的每一个均被构造为独立于所述总部服务器3地允许所述教学端5和学生端6与所述区域服务器1中的教学平台2双向交互操作以实现互动式的远程教学培训。
术语“教育培训集团”在本发明的意义是指从事教学培训业务的团体公司，其包括总部和分散在不同地理位置的分支机构共同组成的、具有垂直型组织体制的联合体。术语“两级交互式架构”包括由总部服务器和区域服务器之间的交互所组成的第一级交互和由区域服务器与终端用户之间的交互所组成的第二级交互在内的架构方式，其中第一级交互与第二级交互之间是互相独立的。术语“交互”是指信息或者资源在本发明的远程教学培训系统的两个组成部分之间双向地传输、读取或者利用。术语“区域服务器”是指以终端用户个体为服务对象的作为区域计算中心的服务器，其具有独立地为终端用户个体提供教学资源以实现远程教学培训的能力。术语“总部服务器”是指仅以区域服务器为服务对象并向其提供教学资源或服务的作为公共计算中心的服务器。作为不意图限定本发明的示例，所述区域服务器和总部服务器可以采用Oracle或者Sun公司出品的刀片式服务器或者机架式服务器，即不同于集中式架构的构思，本发明主要是通过建立以总部服务器和区域服务器并存的计算系统为不同区域和不同需求的终端用户提供相应的教学资源和服务。
请再参见图1，作为一个示例，其中所述多个区域服务器1例如是设置在所述教育培训集团的各自区域的子公司或分公司或加盟机构的办公区的服务器，所述服务器具有用于存储例如教学课件、文档、音视频、PPT等教学资源的一定的存储空间和用于处理学生端发出的访问或者操作请求的处理能力。
相应地，所述总部服务器3则是设置在所述教育培训集团的总部的办公 区的服务器，其作为一个服务平台汇集了所述教育培训集团所有已有的教学资源，并且具有远大于区域服务器的存储空间和处理能力，区域服务器1和总部服务器3之间形成双向交互连接以实现教育资源在两者间的上传和下载。即，总部服务器作为区域服务器的上一级服务器，其为区域服务器提供其所需的新的教育资源并可为区域服务器提供一定的存储空间以存储区域服务器中已有的教育资源；与此同时，区域服务器作为总部服务器下面的子平台，其中的每一个均被构造为独立于所述总部服务器地允许教学端5和学生端6与所述区域服务器1中的教学平台2双向交互操作以实现互动式的远程教学培训。
总部服务器3会根据预定的推送机制，例如在夜间网络通信带宽富裕的情况下按照推送规则主动将教学资源推送到各个区域服务器1。作为一种示例，本领域技术人员能够理解得到所述推送规则中指定了资源被推送的目标区域服务器、推送时间要求。除了按照预定的推送机制主动推送外，还可以根据各个区域服务器所接受到的教学端或者管理控制端的指令式操作将需要使用的教学资源从总部服务器下载到区域服务器。也就是说，区域服务器用于从总部服务器接收学习资源，供本地的教师教学使用。当然，区域服务器也可以将本地接收或生成的资源，根据一定的传送机制上传至总部服务器以将所述教育资源存储在总部服务器3中。作为示例，在网络带宽富裕的情况下，区域服务器中的数据量不大的交互资源可以在教学端和学生端实时交互的过程中，同步上传到总部服务器；而在网络带宽有限或者资源数据量比较大的情况下，为保证课堂交互的实时性，教学所用的资源可以先保存到区域服务器内置的存储空间中进行存储；等待网络带宽富裕时，异步上传到总部服务器中进行存储。这样既保证了网络带宽变化对课堂教学的潜在影响，也减少了教学端和学生端直接与总部服务器交互的网络延迟和拥堵。
在图2中示出了根据本发明的一个区域服务器的架构示意图。其中所述教学平台2包括：管理服务模块21、音像处理模块22以及音像文件管理模块23，其中所述管理服务模块21、音像处理模块22以及音像文件管理模块23彼此之间相互地具有适当的通信连接，如图2中所示出的双向箭头那样。
根据图2所示，区域服务器1为教学平台2提供了能与外部通信连接和运行的工作环境。在使用所述教学平台2时，所述管理控制端4、教学端5、 学生端6能够经由有线或者无线网络的方式通信连接到所述教学平台从而实现对教学平台的访问或操作。同时，由于区域服务器1能够经由网络通信连接到总部服务器3，从而使得所述教学平台2能够经由区域服务器1接触到或获得来自总部服务器3的教学资源。
如图2所示，其中处于不同地理位置的各个区域的子公司或分公司或加盟机构的系统管理者能够经由管理控制端4操作或者使用所述教学平台2，如图2中的单向箭头所示出的那样。作为一种示例，所述系统管理者可以选择采用常规的个人计算机或者是智能手机，并使用诸如应用程序(APP)或者网页点击的方式来操作所述教学平台2，来自所述管理控制端4的管理指令能够发送给管理服务模块21进而管理操作音像处理模块22以及音像文件管理模块23。
同时，授课教师(例如，培训老师或者讲师)可以经由所述教学端5操作或使用所述教学平台2，如图2中所示出的双向箭头，作为一个优选的示例，所述授课教师可以采用设置在预定位置(例如教室)的，经由所述教学端5可操作的至少一个教学摄像机51，从而摄制或者播放教学用的音像文件。所述音像文件可以例如以图2所示的双向箭头的方式在教学摄像机51和音像处理模块22之间进行文件交互。
进一步，至少一个培训学生可以使用学生端6来操作和使用所述教学平台2，如图2中所示出的双向箭头。作为一个示例，所述培训学生可以使用常规的个人计算机或者诸如平板电脑或者智能手机在内的移动装置，并经由利用应用程序或者网页来操作所述教学平台2或者接受来自教学平台2的例如音像文件并在本地进行播放，如此可以观看来自教学平台2的教学音像资料，从而实现教学目的。当然，借助于个人计算机或者智能手机上附设的摄像装置，学生也可以将自己的问题以音像文件的方式转换成音像文件上传至教学平台2并转发至教学端5处的老师，从而实现教师和学生之间的远程教学互动。
接下来，描述所述教学平台2中的管理服务模块21、音像处理模块22以及音像文件管理模块23的各自功能。举例而言，所述管理服务模块21提供的功能包含：设置有可供管理控制端4设置诸如访问权限、登陆密码、用户识别等在内的相关设定的功能模块；与音像处理模块22进行通信以发出例 如录影与音像处理控制命令的功能；与音像文件管理模块23进行通信以实现文件转送和存储的功能。
同时，所述音像处理模块22提供的功能包含：进行动态或者静态录音录像并对录制的音像以及文档文件进行多媒体压缩解码。所述音像文件管理模块23的功能包含：存储或者读取录制的音像和压缩的文档文件的功能，根据外部命令将音像和文档档案动态地上传到区域服务器1等功能。本领域技术人员知晓，上述管理服务模块21、音像处理模块22以及音像文件管理模块23的各自功能能够以电子或者软件编程形成功能模块的方式来实现，这种实现方式是现有技术中已知的，在此不再赘述。
为简便起见，以下将单个区域服务器1与总部服务器3的操作作为示例来描述本发明的教育培训集团的远程教学培训系统的工作原理。在本地的区域服务器的教学资源足够的情况下，授课教师经由教学端5，培训学生经由学生端6连接到教学平台2，所述连接例如经由登陆用户名和密码的方式来进行。管理服务模块21根据管理控制端4的设定对登陆用户名和密码进行识别和校验，如果校验通过则允许授课教师和受训学生连接到教学平台2。授课教师可以借助于教学摄像机51、音像处理模块22以及音像文件管理模块23来实现将教学音像和文档传送给多个学生的学生端6并进行外显播放来完成教学过程。同时，培训学生可以借助于学生端6、音像处理模块22以及音像文件管理模块23来实现将提问或者试卷反馈等文档发送给教学端来实现教学反馈和互动。由此完成了远程教学的交流过程。
当本地的区域服务器1的教学资源不足够的情况下，授课教师可以经由教学端5向教学平台2发出要求访问总部服务器3的指令式操作以请求将需要使用的教学资源从总部服务器下载到区域服务器，教学平台2将所述指令性操作进行处理后转化为总部服务器3可以识别的信号，例如将编号为aaa的教学资源在bbb时间段推送到编号为ccc的区域服务器。总部服务器3在识别到所述信号后，会将请求下载的资源进行打包处理，并将打包后的资源按照一定的推送规则按需主动地推送给目标区域服务器1。教学平台在读取了下载至区域服务器1的教学资源文件后，按照上述的方式，通过教学平台在教学端5和学生端6之间建立信息连接，由此完成了远程教学的交流过程。
由上可知，通过改变原有的集中式服务器的架构，使得在本地的区域服 务器上的教学平台能够经由网络连接使用到总部服务器，从而改善了现有技术中受限于服务器资源有限、网络存在地域差异等种种不足。
进一步优选地，对于位于不同地理位置的各个区域服务器1是属于教育培训集团的加盟机构的情况下，存在这样的需求：使用教学端5和学生端6的授课教师和培训学生的客户信息作为富有商业价值的资源并不期望透露给教育培训集团的总部，这是源于加盟机构和总部之间采用加盟制的特点来决定的。鉴于此，需要在总部服务器3和区域服务器1之间建立一种这样的隔离机制：1.不影响区域服务器1的教学端5和学生端6获取总部服务器的资源；2.总部服务器不会获取到执行以上操作的授课教师和培训学生的用户信息。为了解决所述问题，本发明优选地在总部服务器3和区域服务器1之间还设置有在下文中将详细描述的访问控制系统。
如图所示，在图3中示出了根据本发明的总部服务器和区域服务器之间的访问控制系统，其中所述访问控制系统包括设置在区域服务器1中的区域控制模块11和设置在总部服务器3中的总部控制模块31。进一步，所述区域控制模块11包括数据交换模块111和用户访问控制模块112，其中所述数据交换模块111通过网络分别与所述用户访问控制模块112和总部控制模块3连接。
在本发明的优选实施例中，所述数据交换模块111用于处理具有访问权限用户的访问请求，根据其权限绑定到相应的权限账号，再通过所述权限账号使区域服务器1的用户能够得到总部服务器3相应的服务和教学资源。
同时，总部控制模块31用于判断请求访问的区域服务器1的编号信息，审核所属区域服务器的权限账号信息，获取总部服务器3中用户账号所属的角色信息，根据角色带有的权限提供相关教学资源和服务。
进一步，所述用户访问控制模块112用于处理区域服务器1中授课教师和培训学生借助教学端5和学生端6对总部服务器3的访问请求，进行教学端5和学生端6的用户属性和用户访问控制策略的匹配，判定来自教学端5和学生端6的访问请求对总部服务器3的访问权限。以下将通过示例对上述访问控制系统的访问控制工作原理进行示例性的说明。
如图4所示，其中描述了上述访问控制的完整的工作流程。作为示例，每一个加盟机构均构建了自己的区域服务器1，每一个区域服务器1在日常 工作中需要访问集团总部的总部服务器3的教学资源以及占用所述总部服务器一定的存储空间。加盟机构的区域服务器1首先向总部服务器3提出申请，通过注册流程成为总部服务器的合法用户，并且登记合法用户信息，其中合法用户信息包括加盟机构的名称或字号、地址、联系方式等加盟机构的基本编号信息。并且在每一个区域服务器中均创建有多个具有不同权限属性的权限账号，例如但不限于只读、只写、读写等在内的权限账号：分别为User_Read、User_Write和User_Operation等。这些权限账号包括帐号名、密码、权限信息和所属区域服务器等信息。
合法用户管理员根据区域服务器1中的权限账号在总部服务器3中创建与区域服务器1的权限账号具有相同账号名和密码的用户账号，即各区域服务器1在总部服务器3中的账号。然后根据与用户账号具有相同账号名和密码的权限账号所具备的权限，对各个用户账号赋予相应的角色，每一种角色对应一组相应的权限。总部服务器3保存合法用户信息和总部服务器3上的用户账号信息，根据用户账号的角色所具有的权限，提供相应的资源和服务。其中用户账号信息包括账号名、密码、从属区域服务器的合法用户信息及角色信息
对于总部服务器3来说，合法用户管理员创建的这些用户账号是配属给各个区域服务器1的用户账号，而合法用户管理员则是总部服务器3给各个合法用户的一个有一定高权限的账号，它在总部服务器3中管理从属于自己的区域服务器1的用户账号和各种事务。
为便于理解，作为示例性的实施例，合法用户管理员根据各个区域服务器1中的权限账号User_Read，在总部服务器3中创建一个账号名和密码与所述权限账号User_Read相同的用户账号User_Read，由于权限账号User_Read只有读取教学资源的权限，因此将用户账号C_Read赋予一种只有读取(Read)权限的角色。同样地，对于各个区域服务器1来说，将连接至其的不同教学端5或学生端6分组地赋予不同的组属性，例如但不限于地，只读赋予“R”、只写赋予“W”、读写操作赋予“O”等。以下将详细介绍整个操作流程：
在步骤1中，授课教师或者培训学生经由连接至某加盟机构的区域服务器1的教学端5或者学生端6向所述加盟机构构建的区域服务器1提出访问 教学资源A的详细信息的请求，而所述区域服务器1中只保存了教学资源A的本地影像，详细信息要从总部服务器3中获取，此时操作流程进入步骤2。
在步骤2中由用户访问控制模块112对所述教学端5或者学生端6的信息进行审核，判断其是否为所述区域服务器1中的合法用户，即所述人员是否为所述加盟机构的签约授课教师或者培训学生。若否，则拒绝所述访问请求。若是，则操作流程进入步骤3。
在步骤3中，若用户访问控制模块112检测到所述教学端5或学生端6为所述区域服务器1中的合法用户，则将其用户属性在用户访问控制模块112中与用户访问控制策略进行匹配；若匹配不成功，则拒绝用户的访问；若匹配成功，则操作流程进入步骤4。
其中在用户访问控制模块112中的用户访问控制策略中优选的策略角色为：如果用户属性的组属性为“R”，则允许所述用户访问总部服务器3中的教学资源A，并且访问权限仅为读取。若所述用户的访问请求为请求对总部服务器3中的教学资源A进行读写操作，则拒绝所述用户请求的访问。因此当用户访问模块112检测到请求访问的教学端5或学生端6的用户属性的组属性为“R”，则所述教学端5或学生端6的用户属性与用户访问控制策略匹配成功，允许使用者经所述教学端5或学生端6访问总部服务器3中的教学资源A，并且访问权限仅为读取。
在本实施例中，步骤4中的匹配结果为所述教学端5或学生端6具有对总部服务器3中教学资源A的读取权限，于是，用户访问控制模块112将所述教学端5或学生端6的信息和所述教学端5或学生端6对总部服务器3中的教学资源A的只读权限提交到数据交换模块111，同时记录提交日志，从而操作流程进入到步骤5。
在步骤5中，数据交换模块111将接收到的所述教学端5或学生端6的信息进行暂存，并对用户访问控制模块112提交过来的所述教学端或学生端6对总部服务器1中的教学资源的读取权限进行判断，在区域服务器3中选择只有读取权限的权限账号User_Read，然后操作流程进入步骤6。
在步骤6中，将所述教学端5或学生端6的信息与权限账号User_Read进行绑定，然后由所述权限账号User_Read去访问总部服务器3，从而操作流程进入步骤7。
在步骤7中，所述总部控制模块31接收到来自区域服务器1中的权限账号User_Read的访问请求后，先核实所述区域服务器1的合法用户信息，确定其是否为合法用户，若所述区域服务器为不合法的，则拒绝访问请求，并将拒绝访问提示发送给数据交换模块111；若所述区域服务器1为合法的，在确定所述区域服务器1为合法用户后，接着由总部控制模块31审核请求访问的权限账号User_Read账号信息是否属于所述合法用户即所述区域服务器1；若否，则拒绝访问请求，并将拒绝访问提示发送给数据交换模块111；若是，则操作流程进入步骤8。
在步骤8中，请求访问的权限账号User_Read信息审核通过，即请求访问的权限账号User_Read确实属于所述总部服务器3中的合法用户，数据交换模块111向信息绑定在所述权限账号User_Read上的教学端5或学生端6返回访问请求成功的信息并由总部服务器3获取所述权限账号的角色信息，然后操作流程进入步骤9。
在步骤9中，总部服务器3根据与权限账号User_Read具有相同账号名和密码的用户账号User_Read所属角色带有的访问权限，向所述教学端5或学生端6提供相应的教学资源或服务，由于总部服务器3中的用户账号User_Read所属的角色只具有对总部服务器3中的教学资源A的读取权限，因此总部服务器3只允许所述教学端5或学生端6读取教学资源A的内容，而并不允许其对教学资源A进行修改或者写入等其他操作。由于总部服务器只受到权限账号User_Read的访问请求，其得到的是权限账号的相关信息，并没有直接得到所述教学端5或学生端6的信息(即授课教师或培训学生的客户信息)，具有对加盟机构的区域服务器中的客户信息进行匿名保护的作用。
由此可见，在所述优选实施例中，通过利用区域服务器1中的绑定信息后的权限账号访问总部服务器3，而不是例如直接由教学端5或学生端6直接访问总部服务器3。这使得，总部服务器3只得到权限账号的相关信息，并没有直接得到教学端5或学生端6的信息，因此所述优选实施例能实现对加盟机构的区域服务器1中的客户信息进行匿名保护作用，能够实现好的经济效益。
由此可见，采用以上访问控制系统和访问控制方法能够为总部服务器与 区域服务器之间的资源共享提供一种安全访问的方式，能够使构建了自身区域服务器的加盟机构通过一种更安全的方式去利用教育培训集团的总部服务器上的资源，防止加盟机构自身所持有的客户信息等内部数据泄露，而不影响其终端用户方便共享总部服务器的资源，既提高工作效率，又减少了区域服务器的所有者的日常经营的风险，能够实现好的经济效益。
以上介绍了本发明的较佳实施方式，旨在使得本发明的精神更加清楚和便于理解，并不是为了限制本发明，凡在本发明的精神和原则之内，所做的修改、替换、改进，均应包含在本发明所附的权利要求概括的保护范围之内。
工业实用性
本发明采用以上访问控制方法能够为总部服务器与区域服务器之间的资源共享提供一种安全访问的方式，能够使构建了自身区域服务器的加盟机构通过一种更安全的方式去利用教育培训集团的总部服务器上的资源，防止加盟机构自身所持有的客户信息等内部数据泄露，而不影响其终端用户方便共享总部服务器的资源，既提高工作效率，又减少了区域服务器的所有者的日常经营的风险，能够实现好的经济效益。

Claims (10)

  1. 一种远程教学培训系统，包括：
    处于不同地理位置的多个区域服务器，所述区域服务器具有：
    设置在所述区域服务器中的教学平台；
    与所述教学平台通信连接的管理控制端、教学端和学生端；
    其特征在于：
    所述远程教学培训系统还包括与所述多个区域服务器以两级交互式架构的方式双向交互连接的总部服务器，即，
    所述总部服务器被构造为仅与所述多个区域服务器之间形成双向交互连接以实现教育资源在两者间的上传和下载，
    所述多个区域服务器中的每一个均被构造为独立于所述总部服务器地允许所述教学端和学生端与所述区域服务器中的教学平台双向交互操作以实现互动式的远程教学培训。
  2. 如权利要求1所述的远程教学培训系统，其特征在于：
    所述多个区域服务器和总部服务器之间根据预定的推送规则或者指令性操作将教学资源从总部服务器下载到区域服务器或将区域服务器的生成的资源上传到总部服务器。
  3. 如权利要求1所述的远程教学培训系统，其特征在于：
    所述教学平台优选地包括彼此间相互通信连接的管理服务模块、音像处理模块和音像文件管理模块以实现所述管理控制端、教学端和学生端对教学平台的访问或操作，
    所述管理控制端向所述管理服务模块发出管理指令以管理操作所述音像处理模块和音像文件管理模块。
  4. 如权利要求1所述的远程教学培训系统，其特征在于：
    优选包括可经由所述教学端操作的、设置在所述教学平台和所述教学端之间的至少一个教学摄像机以用于摄制或者播放音像文件，来自所述音像处理模块的音像文件双向地在所述教学摄像机与所述音像处理模块之间进行文件交互。
  5. 如权利要求1所述的远程教学培训系统，其特征在于：
    所述学生端优选为以下中的任一种：计算机、笔记本电脑、手机或平板。
  6. 如权利要求1所述的远程教学培训系统，其特征在于：
    还包括设置在所述总部服务器和区域服务器之间的访问控制系统，其中，
    所述访问控制系统包括设置在区域服务器中的区域控制模块和设置在总部服务器中的总部控制模块，
    所述区域控制模块包括数据交换模块和用户访问控制模块，其中，
    所述数据交换模块通过网络分别与用户访问控制模块和总部控制模块连接。
  7. 如权利要求6所述的远程教学培训系统，其特征在于：
    所述数据交换模块用于处理具有访问权限的用户的访问请求，根据其权限将访问请求绑定到相应的权限账号，再通过所述权限账号使区域服务器的用户能够得到总部服务器相应的服务和教学资源；
    所述总部控制模块用于判断请求访问的区域服务器的合法用户信息，审核所属区域服务器的权限账号信息，获取总部服务器中用户账号所属的角色信息，根据角色带有的权限提供相应的教学资源和服务；
    所述用户访问控制模块用于处理区域服务器的用户对总部服务器的访问请求，进行用户属性和用户访问控制策略的匹配，判定所述访问请求对总部服务器的访问权限。
  8. 如权利要求7所述的远程教学培训系统，其特征在于：
    使连接至区域服务器的不同教学端或学生端分组地被赋予不同的组属性，将所述用户访问控制模块构造成将所述教学端或学生端的组属性与用户访问控制策略进行匹配，如匹配不成功，则拒绝用户的访问，若匹配成功，则所述用户访问控制模块将用户信息和用户的访问权限提交到所述数据交换模块。
  9. 如权利要求7所述的远程教学培训系统，其特征在于，
    所述访问权限包括只读、只写、读写等操作。
  10. 一种如权利要求6-9中任一项所述系统的访问控制方法，其特征在于，包括以下步骤：
    步骤1：某一区域服务器的教学端或者学生端向所述区域服务器提出访问请求，所述区域服务器判断其教学资源或服务是否能够满足所述请求，若否，则进入步骤2；
    步骤2：由用户访问控制模块对所述教学端或者学生端的信息进行审核，判断所述教学端或者学生端是否为所述区域服务器的合法用户，若否，则拒绝所述访问请求。若是，则进入步骤3；
    步骤3：将所述教学端或者学生端的用户属性在用户访问控制模块中与用户访问控制策略进行匹配；若匹配不成功，则拒绝用户的访问；若匹配成功，则进入步骤4；
    步骤4：用户访问控制模块根据用户属性将所述教学端或学生端的信息和其访问权限提交到数据交换模块，从而进入到步骤5；
    步骤5：数据交换模块将接收到的信息进行暂存，并对提交过来的所述教学端或学生端的访问权限进行判断，然后进入步骤6；
    步骤6：将选择相应的权限账号与信息进行绑定，使用绑定后的权限账号访问总部服务器，然后进入步骤7；
    步骤7：总部控制模块接收到来自区域服务器中的权限账号的访问请求后，先核实所述区域服务器的合法用户信息，确定其是否为合法用户，若所述区域服务器为不合法的，则拒绝访问请求，并将拒绝访问提示发送给数据交换模块；若所述区域服务器为合法的，接着由总部控制模块审核请求访问的权限账号的账号信息是否属于所述区域服务器；若否，则拒绝访问请求，并将拒绝访问提示发送给数据交换模块；若是，则进入步骤8；
    步骤8：数据交换模块向教学端或学生端返回访问请求成功的信息并由总部服务器获取所述权限账号的角色信息，然后操作流程进入步骤9；
    步骤9：总部服务器根据与权限账号的所属角色带有的访问权限，向所述教学端或学生端提供相应的教学资源或服务。
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