JPH10228229A - Remote education system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the notice of a question request and the communication of video and audio with simple system configuration at low communication cost by using UUI information of an INS network, notifying the question request from a trainee station to a lecturer station and also using the INS network for the up direction from the trainee station to the lecturer station. SOLUTION: The down direction from the lecturer station 100 to the trainee stations 200, 300 is performed by satellite communication. The question request from the trainee stations 200, 300 is notified to the lecturer station by using the UUI information of the INS network, and by allowing a question from the lecturer station 100, the lecturer station is connected with the trainee station that the question is allowed, and the video and audio of the trainee station are notified to the lecturer station 100. The lecturer station 100 inputs a lecturer video from a camera 1 to a CODEC 104 for satellite, and inputs a transmission audio from a microphone 2 to the CODEC 104. Then, the video and audio signals coded by the CODEC 104 for satellite are transmitted by a satellite equipment 105.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distance education system using a satellite, and more particularly to a distance education system having a means for communicating video and audio from a student station during a request for a question from the student station.

[0002]

2. Description of the Related Art Heretofore, a remote education system using a satellite of this type has a satellite channel of one image channel in the down direction for multiplexing and distributing video, audio and control signals from a teacher station to a student station, and a plurality of lectures. Inquiry requests from student stations have been received by using satellite channels of a plurality of voice channels in the upstream direction for multiplexing and notifying voice and control signals from the station to the instructor station.

[0003]

The above-mentioned prior art has the following problems.

[0004] The first problem is that it requires satellite channels for a plurality of voice channels in the upward direction from a plurality of attending stations to the instructor station, which is costly.

[0005] The second problem is that the upstream direction from the attending station to the instructor station is only for voice communication and not for video communication.

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, an object of the present invention is to provide a simple system configuration with a low communication cost, to notify a question request from a student station to a lecturer station, and to transmit video and audio from the student station to the lecturer station. To provide a distance learning system for communication.

[0007]

SUMMARY OF THE INVENTION A distance learning system according to the present invention is an education system using satellite communication between a lecturer station and a plurality of learning stations. Satellite communication transmitting means for transmitting video and audio by satellite communication, and a question request from the student station is I
The instructor station is notified using the user information on the NS Net, and the instructor station allows questions, and connects the instructor station to the instructed student station through the INS net, and the student station and video And a question request receiving means for communicating with the audio and voice. The attending station is a satellite communication receiving means for receiving video and audio from the instructor station by satellite communication, and a question request to the instructor station is provided on the INS network. Notifying the instructor station using the user information of the user and allowing the instructor station to ask a question, connecting to the instructor station via the INS net, and requesting a question to communicate video and audio with the instructor station Transmission means.

[0008] The satellite communication transmitting means transmits the instructor's image from the first camera to the first satellite C through the image switch.
ODEC, the instructor's audio from the first microphone is input to the first satellite CODEC via the first audio distributor and audio mixer, and the video and audio encoded by the first satellite CODEC are input. Means for transmitting the signal by the first satellite facility, and under the control of the first control device, the image of the lecturer from the first camera input to the video switcher and the question input from the video distributor are permitted. With the video from
The switching control is performed, and the video of the lecturer and the video of the interrogator are switched and input to the first CODEC for the satellite. The audio mixer mixes the voice of the lecturer from the first microphone and the voice from the second voice distributor. Means for adding the voice of the interrogator and inputting it to the first satellite CODEC, and transmitting the video and audio signal encoded by the first satellite CODEC by the first satellite equipment. You may.

The inquiry request receiving means is connected to a ground system CO via a first DSU which is a line termination device of the INS network.
The DEC receives the question request from the student station based on the user / user information on the INS net, separates and outputs it to the first control device, and sends the question request to the operation panel connected to the first control device. When the instructor permits the question by operating the operation panel, the first controller issues an instruction to connect the INS network to the first ground CODEC, and the first ground CODEC is the attending station to which the question is permitted. Is connected to the second terrestrial CODEC via the first DSU and the second DSU, and communicates with the attending station with video and audio, and the question-permitted course decoded by the first terrestrial CODEC The image of the interrogator from the station is output to the first monitor via the video distributor, and the voice of the interrogator from the student station permitted to interrogate is output to the first speaker via the second audio distributor. May be a means to .

[0010] When a question request is made by operating the operation panel, the question request transmitting means controls the second ground system CODEC via the second control device to control the user of the INS network.
A question request is notified to the instructor station via the second DSU based on the user information, the question is permitted by the instructor station, and the second terrestrial CODEC communicates with the instructor station via the second DSU with the instructor station.
When connected by the S-net, the video of the interrogator from the second camera and the audio of the interrogator from the second microphone are encoded by the second terrestrial CODEC, and the INS net is transmitted via the second DSU. Means for transmitting to the instructor station.

The satellite communication receiving means outputs the video and audio signals from the instructor station received by the second satellite equipment to the second satellite CODEC, and decodes the video and audio signals by the second satellite CODEC. Means for outputting the sound signal decoded by the second satellite CODEC to the second speaker via a sound switch, and means for outputting the sound of the lecturer from the lecturer station to the second monitor. Decoded by the terrestrial CODEC and output to the voice switch, the voice switch under the control of the second control device, and the additional voice of the instructor and the interrogator decoded by the second CODEC for the satellite, Second terrestrial CODEC
Means for switching to the instructor's voice from the second speaker and outputting to the second speaker.

In the distance learning system using satellites of the present invention, a question request from a student station is transmitted to an INS net (Infor).
UUI information (User-User Inform)
, user and user information), and also notifies the instructor station of the video and audio from the attending station via the INS network.

The use of the INS net eliminates the need for expensive satellite equipment and reduces communication costs. Also, video communication can be performed at low communication cost. In addition, by using the UUI information, it is possible to receive a notification of a question request from another student station even while communicating with one student station for a question.

[0014]

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the configuration of a distance education system according to the present invention.

The instructor station 100 and a plurality of enrollment stations 200 and 30
This is an educational system using satellites between 0,..., From the instructor station to the attending station by satellite communication, and a request from the attending station is notified to the instructor station using UINS information on the INS net. By permitting a question at the station, the instructor station is connected to the instructor station to which the question is permitted via the INS net, and the video and audio of the student station are notified to the instructor station.

The instructor station 100 transmits the instructor image from the first camera 1 to the satellite CODEC 1 via the image switch 102.
04, the transmission sound from the first microphone 2 is input to the first satellite codec 104 via the audio distributor 101 and the audio mixer 103, and the first satellite codec 104 is input.
The video and audio signals encoded in C104 are transmitted by the first satellite equipment 105.

The instructor station 100 is provided with a first DSU (Digital Se) which is an INS network line terminating device.
1 via the service unit 106
.. Are received by the ODEC 107 based on the UUI information from the student stations 200, 300,.
Is output to the control device 110. When the attending station that requested the question is displayed on the operation panel 5 connected to the first control device 110, and the instructor operates the operation panel 5 to permit the question,
From the first control device 110 to the first terrestrial CODEC 10
7 is instructed to connect to the INS network, and the first terrestrial CO
DEC 107 is the second ground system C of the student station which is permitted to ask questions.
ODEC 207, first DSU 106 and second DSU
A connection is made via the communication unit 206 to perform video and audio communication. The video from the question-permitted student station decoded by the first terrestrial CODEC 107 is output to the first monitor 3 via the video distributor 108, and the audio from the question-permitted student station is transmitted to the audio distributor 109. Through the first speaker 4.

Further, under the control of the first control device 110, the switching control of the instructor image from the camera 1 input to the image switching device 102 and the image from the attending station permitted to be interrogated and input from the image distributor 108 is performed. Then, the video of the instructor and the interrogator is switched and distributed to the students via the satellite. Further, the audio mixer 103 adds the instructor's voice from the first microphone 2 and the interrogator's voice from the voice distributor 109 and distributes them to the student station via satellite.

The attending station 200 outputs the video and audio signals from the instructor station received by the second satellite equipment 205 to the second satellite CODEC 204, and outputs the second satellite CODEC2.
The video signal decoded at 04 is output to the second monitor 23, and the audio signal is output to the second speaker 24 via the audio switch 201.

When a question request is made by operating the operation panel 10, the second ground system CO
The second DSU is controlled by the UUI information by controlling the DEC 207.
A question request is notified to the instructor station via 206. After permission to ask questions from the instructor station, the second terrestrial CODEC 207
Is connected to the instructor station via the DSU 206, the interrogator video from the second camera 21 and the interrogator voice from the second microphone 22 are encoded and notified to the instructor station.

The instructor's voice from the instructor's station is decoded by the second terrestrial CODEC 207 and output to the audio switch 201. Under the control of the second control device 210, the audio from the satellite system is output by the audio switch 201. The additional voice of the instructor and the questioner,
During the inquiry, the voice is switched to the instructor voice from the second terrestrial CODEC 207 and output to the second speaker 24.

The learning stations 300,... Are constituted by the same devices as the learning station 200.

[0024]

As described above, according to the present invention, a question request from a plurality of enrollment stations to an instructor station is notified by using the UUI information of the INS net, so that the question request can be made with a simple configuration and at low communication cost. Communication can be performed.

In addition, the upward direction from the attending station to the instructor station is also I
The use of the NS net has an effect that video and audio communication can be performed with a simple configuration and low communication cost.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a distance education system configuration of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st camera 2 1st microphone 3 1st monitor 4 1st speaker 5 Operation panel 10 Operation panel 21 2nd camera 22 2nd microphone 23 2nd monitor 24 2nd speaker 100 Lecturer station 101 First audio distributor 102 Video switch 103 Audio mixer 104 First CODEC for satellite 105 First satellite equipment 106 First DSU 107 First terrestrial CODEC 108 Video distributor 109 Second audio distributor 110 First control device 200, 300, ... Student station 201 Audio switch 204 Second CODEC for satellite 205 Second satellite equipment 206 Second DSU 207 Second terrestrial CODEC 210 Second control device

Claims (5)

[Claims] 1. An educational system using satellite communication between an instructor station and a plurality of enrollment stations, wherein the instructor station transmits an instructor's video and audio and an image and audio from the enrollment station by satellite communication. Means for transmitting satellite communications, and a request for a question from the student station is provided by a user of the INS net.
The instructor station is notified using the user information, and by permitting a question in the instructor station, the instructor station is connected to the instructed student station via the INS network, and the instructor station and the image are displayed. And a question request receiving means for communicating with voice,
The attending station has satellite communication receiving means for receiving video and audio from the instructor station by satellite communication, and a question request to the instructor station is provided by the instructor using INS net user / user information. Having a question request transmitting means connected to the instructor station via the INS network and communicating with the instructor station by communicating with the instructor station by notifying the instructor station and instructing the instructor station to ask a question. Distance learning system characterized by the following. 2. The remote education system according to claim 1, wherein the satellite communication transmitting means inputs a video of the lecturer from the first camera to the first CODEC for the satellite via a video switch. Instructor's voice from one microphone is input to the first satellite CODEC via a first voice distributor and an audio mixer, and the video and audio signals encoded by the first satellite CODEC are converted to Means for transmitting by the first satellite equipment, and under the control of the first controller, the lecturer's image from the first camera input to the video switcher and the question-permitted lecture input from the video distributor. Switching between the video from the station and the video of the lecturer and the video of the interrogator are switched and input to the first satellite CODEC, and the voice of the lecturer from the first microphone is transmitted by the audio mixer. And the second , And input to the first satellite CODEC, and the video and audio signals encoded by the first satellite CODEC are added to the first satellite equipment. Means for transmitting by
Distance learning system characterized by having. 3. The remote education system according to claim 1, wherein said question request receiving means is provided from said student station by a terrestrial CODEC via a first DSU which is a line termination device of an INS network. INS Net user and user information,
Separated and output to the first control device, the attending station that requested the question is displayed on the operation panel connected to the first control device, and when the instructor operates the operation panel to permit the question, The first controller issues an instruction to connect the INS network to the first ground CODEC, and the first ground CODEC is connected to the second ground CODEC and the first DSU and the second DSU of the student station whose query is permitted. 2 DS
U, and communicates with the student station through video and audio. The video of the interrogator from the student station authorized to interrogate and decoded by the first terrestrial CODEC is transmitted through the video distributor. Means for outputting to the first monitor, and outputting the voice of the interrogator from the attending station authorized for the question to the first speaker via the second voice distributor. . 4. The remote education system according to claim 1, wherein the question request transmitting unit operates the operation panel to request a question, and causes the second control device to operate. Controlling the second terrestrial CODEC via the INS network to notify the instructor station of a question request via the second DSU based on the user / user information of the INS network; Terrestrial COD
When the EC is connected to the instructor station via the second DSU via the INS net, the video of the interrogator from the second camera and the audio of the interrogator from the second microphone are transmitted to the second microphone. The terrestrial CODEC encodes the second D
A remote education system, which is means for transmitting to the instructor bureau via an INS network via an SU. 5. The remote education system according to claim 1, wherein the satellite communication receiving means transmits a video and audio signal from the lecturer station received by a second satellite facility. Output to the second satellite CODEC, output the video signal decoded by the second satellite CODEC to the second monitor, and output the audio signal decoded by the second satellite CODEC to the audio switch. Means for outputting to the second speaker through the second terrestrial COD,
Under the control of the second control device, the speech is decoded by the EC and output to the speech switch, and the speech of the lecturer and the interrogator decoded by the second CODEC for the satellite is controlled by the speech switch under the control of the second control device. Means for switching to the instructor voice from the second terrestrial CODEC and outputting to the second speaker,
Distance learning system characterized by having.