KR102327489B1 - Mobile tutoring platform server and method of providing mobile tutoring service using RTC switching - Google Patents

Abstract

The present invention relates to a mobile tutoring platform server using RTC switching and a method for providing a mobile tutoring service. According to the present invention, when receiving a request for tutoring service with a second user terminal on the instructor's side from the first user terminal on the learner's side, the first operator's RTC (Real Time Communication) channel preset in the first user terminal A call connection unit for providing a tutoring service based on a voice call by connecting a first user terminal to the second user terminal by call, and a call quality measuring unit for measuring the call quality of the first user terminal measured during the tutoring service, and When the call quality of the first user terminal is less than or equal to a preset reference value, when the first user terminal requests the next tutoring service, an RTC switching unit for selecting an RTC channel of a second operator other than the first operator from the RTC vendor DB Including, wherein the call connection unit provides a mobile tutoring platform server for call-connecting the first user terminal to the second user terminal through the RTC channel of the selected second operator.
According to the present invention, upon receiving a request for tutoring service from the learner terminal, the learner terminal selectively switches the RTC channel based on the call quality measured in the past to connect the call to the instructor's terminal, thereby increasing the call quality of the tutoring service and the user It can increase their satisfaction with service use.

Description

Mobile tutoring platform server and method of providing mobile tutoring service using RTC switching

The present invention relates to a mobile tutoring platform server and a method for providing a mobile tutoring service using RTC switching, and more particularly, to a mobile that can improve call quality when providing a mobile tutoring service by connecting a learner and an instructor on a network. It relates to a tutoring platform server and an RTC switching method using the same.

In general, an online education or tutoring system provides various educational contents classified according to information such as subjects, lecture levels, and instructors. As such, since the educational contents are very diverse, the user is accompanied by the process of selecting the desired lecture.

In general, when one of the instructor lists is selected from the network-connected learner terminal, the online education system performs a call connection between the learner terminal and the selected instructor terminal and provides a mobile tutoring service based on voice mediation.

However, in the case of the existing online education system, when a call is connected, the learner terminal is connected to the instructor terminal through a preset RTC (Real Time Communication) channel, that is, the RTC channel linked to the communication company of the learner terminal.

However, even with the RTC channel provided by the operator of the learner's terminal, the call quality cannot always be said to be good. This may happen. As such, when the tutoring service is conducted in a situation where the call quality is not good, there is a problem in that the lecture and learning efficiency between the learner and the instructor is lowered, and the desire to use the tutoring service is also reduced.

The technology that is the background of the present invention is disclosed in Korean Patent Application Laid-Open No. 2010-0115538 (published on October 28, 2010).

The present invention provides a mobile tutoring platform server and mobile tutoring service using RTC switching that can improve the call quality of tutoring services by selectively switching RTC channels based on the recently measured call quality in the learner terminal and connecting the call with the instructor terminal An object of the present invention is to provide a method for providing.

In the present invention, upon receiving a request for tutoring service with a second user terminal on the instructor's side from the first user terminal on the learner's side, the first user terminal through the RTC (Real Time Communication) channel of the first operator preset in the first user terminal 1 A call connection unit for providing a tutoring service based on a voice call by connecting a user terminal to the second user terminal by call, and measuring the call quality of the first user terminal during the tutoring service and comparing the call quality with a preset reference value And when the call quality of the first user terminal is less than or equal to the reference value, when the first user terminal requests the next tutoring service, the RTC channel of a second operator other than the first operator is RTC selected from the RTC vendor DB It includes a switching unit, wherein the call connection unit provides a mobile tutoring platform server that connects the first user terminal to the second user terminal through the RTC channel of the selected second operator.

Here, the RTC vendor DB stores a plurality of operators providing the RTC channel and RTC channel providing paths of each of the operators, and the call connection unit selects an RTC channel providing path corresponding to the operator selected by the RTC switching unit. It is possible to make a call connection between the first user terminal and the second user terminal by inquiring from the RTC vendor DB.

In addition, the mobile tutoring platform server, each corresponding to a plurality of the first user terminal, the terminal model, unique number, location, communication performance, environmental factors including at least one of the call time zone and weather, the operator and the call quality and a data storage unit storing a plurality of candidate lists matching with each other, wherein the RTC switching unit searches for at least one candidate list corresponding to the currently measured environmental factor of the first user terminal from the storage unit, , a corresponding operator on a list matched with the highest call quality among the searched candidate list may be selected as the second operator.

Also, the call quality measurement unit may measure the call quality using the call quality measurement algorithm.

And, in the present invention, in the RTC (Real Time Communication) switching method using a mobile tutoring platform server, when a tutoring service with a second user terminal on the instructor's side is requested from the first user terminal on the learner's side, the first user Providing a voice call-based tutoring service by connecting the first user terminal to the second user terminal through the RTC channel of the first operator preset in the terminal, and calling the first user terminal during the tutoring service measuring the quality and comparing it with a preset reference value; and when receiving the next tutoring service request from the first user terminal, if the previously measured call quality is less than the reference value, a second operator other than the first operator RTC switching using a mobile tutoring platform server comprising the steps of selecting an RTC channel of the RTC vendor from the RTC vendor DB, and calling the first user terminal and the second user terminal through the RTC channel of the selected second operator provide a way

In addition, the RTC vendor DB stores a plurality of operators providing the RTC channel and RTC channel providing paths of each of the operators, and the step of connecting a call through the RTC channel of the selected second operator includes the RTC switching unit The first user terminal may be connected to the second user terminal by inquiring from the RTC vendor DB for an RTC channel providing path corresponding to the operator selected in .

In addition, the RTC switching method, corresponding to each of the plurality of first user terminals, terminal model, unique number, location, communication performance, environmental factors including at least one of a call time zone and weather, the operator and the call quality The method further comprises the step of storing a plurality of mutually matched candidate lists, wherein the selecting of the RTC channel of the second operator from the RTC vendor DB includes at least one corresponding to the currently measured environmental factor of the first user terminal. The candidate list may be retrieved from the storage unit, and a corresponding operator on a list matching the highest call quality among the searched candidate lists may be selected as the second operator.

According to the mobile tutoring platform server and the RTC switching method using the same according to the present invention, when receiving a tutoring service request from the learner terminal, the RTC channel is selectively switched based on the recent call quality measured in the learner terminal to make a call with the instructor's terminal By connecting, the call quality of the tutoring service can be improved and users' satisfaction with the service can be increased.

1 is a view showing a mobile tutoring platform system according to an embodiment of the present invention.
FIG. 2 is a diagram showing the configuration of the mobile tutoring platform server shown in FIG. 1 .
3 is a diagram illustrating an RTC switching method using the mobile tutoring platform server shown in FIG. 2 .

Then, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily implement them.

1 is a view showing a mobile tutoring platform system according to an embodiment of the present invention. The mobile tutoring platform system according to an embodiment of the present invention includes a mobile tutoring platform server 100, a first user terminal 200, and a second user terminal 300, each of which is connected by a wired/wireless communication network 400 .

The mobile tutoring platform server 100 is a server that is implemented online and provides a mobile tutoring service, and is a tutoring service based on a voice call between the first user terminal 200 on the learner's side and the second user terminal 300 on the instructor's side. provides

The mobile tutoring platform server 100 may mediate tutoring services between the first and second user terminals 300 through an app that interworks with the tutoring service web server. Of course, the lecture content screen may be provided on the mobile app during tutoring service brokerage, and it may support not only voice calls but also real-time chatting and correctional guidance functions.

The mobile tutoring platform server 100 may manage a pool of instructors having a plurality of instructor profiles. The first user terminal 200 may access an app provided by the mobile tutoring platform server 100 to apply for or reserve a lecture of a desired instructor. The second user terminal 300 may be connected to the first user terminal 200 on a call to provide a learner with a lecture requested or reserved by the first user terminal 200 .

If the embodiment of the present invention is for a mobile language (English) tutoring service, the second user terminal 300 may correspond to a native speaker as well as a general instructor. In addition, since the present embodiment enables the mobile tutoring service in a network environment, the present system can be applied even when the instructor resides in a foreign country.

The first and second user terminals 300 may be various known means capable of accessing the network 400 , and may include a smart phone, a smart pad, various mobile devices, a notebook computer, a tablet PC, and the like.

In a general tutoring brokerage service, the learner terminal is connected to the instructor's terminal through the RTC channel (default channel) provided by the communication company of the learner terminal and the tutoring service is brokered. However, even with the RTC channel provided by the learner's terminal's carrier (ex, SK Telecom), the call quality cannot always be good, and the call quality drops or the call is cut off due to factors such as the location, model, and surrounding environment of the learner's terminal. phenomena may occur.

According to an embodiment of the present invention, if the last call quality previously measured in the first user terminal 200 is less than or equal to the reference value, when a tutor service request is received from the first user terminal 200 later, it is different from the existing RTC channel. A call connection may be made with the second user terminal 300 using an RTC channel (eg, a channel provided by KT).

That is, the embodiment of the present invention selectively switches the RTC channel based on the recent call quality measured in the learner terminal when receiving a tutor service request from the learner terminal to connect the call with the instructor's terminal, so the call quality of the tutoring service can increase user satisfaction with service use.

FIG. 2 is a diagram showing the configuration of the mobile tutoring platform server shown in FIG. 1 . Referring to FIG. 2 , the mobile tutoring platform server 100 according to an embodiment of the present invention includes a call connection unit 110 , a call quality measurement unit 120 , an RTC switching unit 130 , an RTC vendor DB 140 , and data and a storage unit 150 .

When the call connection unit 110 receives a request for tutoring service with the second user terminal 300 on the instructor's side from the first user terminal 200 on the learner's side, the RTC of the first operator preset in the first user terminal 200 The first user terminal 200 is connected to the second user terminal 300 through a channel to provide a tutoring service based on a voice call. Of course, the first user terminal 200 may be provided with a list of instructors when accessing the server 100 , and may be provided with tutoring services by making a call connection with the second user terminal 300 of the instructor selected from the list of instructors.

The call quality measurement unit 120 measures the call quality of the first user terminal 200 during the tutoring service. Call quality measurement may use a known call quality measurement algorithm. The call quality measurement unit 120 may compare the measured call quality with a preset reference value and provide the comparison result to the call connection unit 110 .

Here, if the call quality is higher than the reference value, the call quality is good, but if the call quality is below the reference value, the call quality is bad.

Therefore, in the present embodiment, when the next call connection (tutoring service request) is attempted later in the first user terminal 200 , the call connection unit 110 is the RTC of the first operator preset in the first user terminal 200 . A call connection is performed using an RTC channel of a second operator different from the channel, and for this purpose, the RTC switching unit 130 is used.

That is, when the next request for tutoring comes from the first user terminal 200 whose call quality is less than or equal to the reference value, the RTC switching unit 130 transfers the RTC channel of the second operator other than the first operator from the RTC vendor DB 140 . The selected and selected RTC channel information is provided to the call connection unit 110 .

Accordingly, the call connection unit 110 makes a call connection between the first user terminal 200 and the second user terminal 300 through the RTC channel of the second operator selected by the RTC switching unit 130 .

Of course, even when the next tutoring service connection request is made, the first user terminal 200 can request a connection with the instructor selected from the instructor list as before, so the second user terminal ( 200 ) connected through the RTC channel of the second operator. 300) may be the same instructor-side terminal as before or may be a different instructor-side terminal.

The RTC vendor DB 140 stores a plurality of operators providing an RTC channel and RTC channel providing paths of each of the operators. Therefore, the call connection unit 110 inquires from the RTC vendor DB 140 for an RTC channel providing path corresponding to the operator selected by the RTC switching unit 130 to connect the first user terminal 200 with the second user terminal 300 . connect the call

The data storage unit 150 stores a plurality of candidate lists in which environmental factors, operators, and call quality are matched with each other in correspondence with the plurality of first user terminals 200 , respectively. The environmental factor includes at least one of a terminal model, a unique number, a location, communication performance, a call time zone, and weather of the first user terminal 200 .

The data storage unit 150 matches and stores environmental factors, operators, and call quality for each of the plurality of first user terminals 200 , and holds the stored information as a candidate list. For example, for each of the N first user terminals 200 having a history of using the tutoring service, the environment factor, the operator, and the call quality information are matched, stored, and managed.

Based on this, when the RTC switching unit 130 selects the RTC channel of the second operator from the RTC vendor DB 140 , the RTC switching unit 130 corresponds to the currently measured environmental factor of the first user terminal 200 . At least one candidate list is first retrieved from the data storage unit 150, and then, a corresponding operator existing on a list with the highest call quality among the at least one candidate list is selected as the second operator.

For example, a candidate list matching the currently measured environmental factor of the first user terminal 200 is searched from among the N candidate lists stored in the data storage unit 150 . Thereafter, one candidate list having the highest call quality is finally selected from among the searched candidate lists, and the operator on the finally selected candidate list is selected as the second operator, and the RTC channel corresponding to the selected second operator is transferred to the RTC vendor DB (140). ) can be searched from.

3 is a diagram illustrating an RTC switching method using the mobile tutoring platform server shown in FIG. 2 . Hereinafter, an RTC switching method using a mobile tutoring platform server according to an embodiment of the present invention will be described in more detail with reference to FIGS. 2 and 3 .

First, the call connection unit 110 receives a request for tutoring service with the second user terminal 300 on the instructor's side from the first user terminal 200 on the learner's side (S310).

Then, the call connection unit 110 makes a call connection between the first user terminal 200 and the second user terminal 300 through the RTC channel of the first operator (ex, SK Telecom) preset in the first user terminal 200 . to provide a voice call-based tutoring service (S320, S330).

The call quality measurement unit 120 measures the call quality of the first user terminal 200 during the tutoring service and compares the measured call quality with a preset reference value (S340). The measurement and comparison result of the call quality may be provided to the call connection unit 110 after a later call (tutorial service) is terminated.

If the call quality is better than the reference value, the call connection unit 110 later receives the next tutoring service request from the first user terminal 200, RTC of the existing first operator (ex, SK Telecom) A call connection is performed with the second user terminal 300 by using the channel as it is.

However, if the existing measured call quality is less than the reference value, the call connection unit 110 makes a call with the second user terminal 300 through the RTC channel of another second operator (ex, KT) selected by the RTC switching unit 130 . make a connection

That is, when receiving the next tutoring service request from the first user terminal 200, if the call quality of the first user terminal 200 measured previously is less than the reference value, the RTC switching unit 130 is The RTC channel of the second operator is selected from the RTC vendor DB 140 (S350).

Accordingly, the call connection unit 110 makes a call connection between the first user terminal 200 and the second user terminal 300 through the RTC channel of the second operator selected by the RTC switching unit 130 (S360). Here, the call connection unit 110 inquires from the RTC vendor DB 140 for an RTC channel providing path corresponding to the operator selected by the RTC switching unit 130 to connect the first user terminal 200 with the second user terminal 300 . Just make a call connection.

In addition, in an embodiment of the present invention, in response to each of the plurality of first user terminals 200 , 'environmental factors' (terminal model, unique number, location, communication performance, call time zone, weather, etc.), call and storing a plurality of candidate lists that match the 'operator' of the RTC channel used during the call and the 'call quality' measured during the call.

This data storage step can be performed at any time after the first user terminal 200 is connected to the second user terminal 300 by call, and can be performed for all first user terminals (learners) to form big data. can

Using this, if the learner terminal is connected to the instructor terminal through the RTC channel of the first operator to provide tutoring service, and the call quality of the current learner terminal is not good, the learner terminal requests tutoring service again in the future The call is made by selecting the channel used by another learner terminal (RTC channel of the second operator), which is found to have good call quality in the environment factor most consistent with the current learner terminal, rather than the RTC channel of the first operator used previously. make it possible

The more historical accumulated data for each learner terminal, the more it is possible to select an RTC channel that matches the most similar environmental conditions to the current learner terminal, and accordingly, it is possible to provide a smooth tutoring service with good call quality anytime, anywhere, in any environment.

According to the mobile tutoring platform server and the RTC switching method using the same according to the present invention, when receiving a tutoring service request from the learner terminal, the RTC channel is selectively switched based on the recent call quality measured in the learner terminal to make a call with the instructor's terminal By connecting, there is an advantage to improve the call quality of tutoring services and to increase user satisfaction with the service.

Although the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100: mobile tutoring platform server 110: call connection unit
120: call quality measurement unit 130: RTC switching unit
140: RTC vendor DB 150: data storage unit
200: first user terminal 300: second user terminal

Claims (7)

A mobile tutoring platform server that provides tutoring services based on voice calls to a first user terminal on the learner's side and a second user terminal on the instructor's side, comprising:
When receiving a request for the tutoring service with the second user terminal on the instructor side from the first user terminal on the learner side, the first user terminal is preset in the first operator's RTC (Real Time Communication) channel a call connection unit for providing the tutoring service based on a voice call by connecting a first user terminal to the second user terminal by a call;
a call quality measuring unit for measuring the call quality of the first user terminal during the tutoring service and comparing it with a preset reference value;
When the call quality of the first user terminal exceeds the reference value, the first user terminal uses the RTC channel of the first operator as it is when requesting a next tutoring service, and the call quality of the first user terminal is the an RTC switching unit for selecting an RTC channel of a second operator other than the first operator from the RTC vendor DB when the first user terminal requests a next tutoring service if it is less than the reference value; and
Corresponding to the plurality of first user terminals, respectively, a plurality of candidate lists that match the environmental factors including at least one of terminal model, unique number, location, communication performance, call time zone and weather, the operator and the call quality. stored data storage unit;
includes,
The RTC vendor DB stores a plurality of operators providing the RTC channel and an RTC channel providing path of each of the operators,
The RTC switching unit searches for at least one candidate list corresponding to the currently measured environmental factor of the first user terminal from the data storage unit, and selects an operator with the highest call quality among the searched candidate lists Selecting as the second operator,
The call connection unit inquires from the RTC vendor DB for the RTC channel providing path corresponding to the operator selected by the RTC switching unit to call the first user terminal with the second user terminal,
Mobile tutoring platform server using RTC switching.
A method of providing a tutoring service based on a voice call to a first user terminal on the learner's side and a second user terminal on the instructor's side, the method comprising:
When the call connection unit receives a request for the tutoring service with the second user terminal on the instructor side from the first user terminal on the learner side, Real Time Communication (RTC) of the first operator preset in the first user terminal a call connection step of providing the tutoring service based on a voice call by connecting the first user terminal to the second user terminal through a channel;
a call quality measuring step of measuring, by a call quality measuring unit, the call quality of the first user terminal during the tutoring service and comparing it with a preset reference value;
The RTC switching unit, when the call quality of the first user terminal exceeds the reference value, uses the RTC channel of the first operator as it is when the first user terminal requests the next tutoring service, and the first user terminal an RTC switching step of selecting an RTC channel of a second operator other than the first operator from the RTC vendor DB when the first user terminal requests a next tutoring service if the call quality is less than or equal to the reference value; and
A data storage unit, corresponding to each of the plurality of first user terminals, a plurality of mutually matching environmental factors including at least one of terminal model, unique number, location, communication performance, call time zone and weather, the operator and the call quality a data storage step of storing a candidate list of ;
includes,
The RTC vendor DB stores a plurality of operators providing the RTC channel and an RTC channel providing path of each of the operators,
In the RTC switching step, the RTC switching unit searches for at least one candidate list corresponding to the currently measured environmental factor of the first user terminal from the data storage unit, and has the highest call quality among the searched candidate lists. Selecting this matched operator as the second operator,
In the call connection step, the call connection unit calls the first user terminal with the second user terminal by inquiring from the RTC vendor DB for the RTC channel providing path corresponding to the operator selected by the RTC switching unit,
A method of providing a mobile tutoring service using RTC switching.
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