JPS63292733A - Satellite communication education system - Google Patents
Satellite communication education systemInfo
- Publication number
- JPS63292733A JPS63292733A JP12922287A JP12922287A JPS63292733A JP S63292733 A JPS63292733 A JP S63292733A JP 12922287 A JP12922287 A JP 12922287A JP 12922287 A JP12922287 A JP 12922287A JP S63292733 A JPS63292733 A JP S63292733A
- Authority
- JP
- Japan
- Prior art keywords
- channel
- station
- teacher
- student
- pupil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004891 communication Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 241000283014 Dama Species 0.000 claims 2
- JNSGIVNNHKGGRU-JYRVWZFOSA-N diethoxyphosphinothioyl (2z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetate Chemical compound CCOP(=S)(OCC)OC(=O)C(=N/OC)\C1=CSC(N)=N1 JNSGIVNNHKGGRU-JYRVWZFOSA-N 0.000 claims 2
- 210000001747 pupil Anatomy 0.000 abstract 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
Landscapes
- Time-Division Multiplex Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、衛星通信技術の要求割当多元接続（ＤＡＭＡ
）方式を用いて任意の生徒局から教師局へ発言すること
を可能にする広域衛星通信教育システムに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is directed to demand allocation multiple access (DAMA) satellite communication technology.
) system that allows any student station to speak to a teacher station.
（従来の技術）
従来、この種の通信教育システムは、固定された地上回
線を利用した通信教育網を構築することにより実現され
る。この通信教育網においては、教師局（センタ）と生
徒局との間に設定された独立の専用・回線を介して音声
及び信号を交換する。(Prior Art) Conventionally, this type of correspondence education system has been realized by constructing a correspondence education network using fixed land lines. In this correspondence education network, voices and signals are exchanged via independent dedicated lines set up between a teacher station (center) and a student station.
（発明が解決しようとする問題点）
上述した従来の通信教育システムは、固定された地上回
線により通信教育網を構築するので、生徒局の位置が制
限されて広域をカバーできないという問題点がある。ま
た、この通信教育網が複数回線からなる場合には、教師
局から複数の生徒間への同報通信に対する特別な工夫が
必要となる。(Problems to be Solved by the Invention) The conventional correspondence education system described above has the problem that the correspondence education network is constructed using a fixed terrestrial line, so the location of the student station is restricted and a wide area cannot be covered. . Furthermore, if this correspondence education network consists of a plurality of lines, special measures are required for broadcast communication from the teacher's station to a plurality of students.
（問題点を解決するための手段）
上述の問題点を解決するなめに本発明が堤供する衛星通
信教育システムは、教師局と複数の生徒間との通信を、
同報性のある衛星通信により行う通信教育システムであ
って、前記教師局及び前記生徒間の各々に、小容量衛星
通信送受信機と、ＤＡＭＡ制御装置と、教育システム用
端末装置とを備え、前記生徒間から前記教師局へ発言要
求信号を送出するためのチャネルを設けてあり、前記教
師局の前記ＤＡＭＡ制御装置は、この発言要求用チャネ
ルにより発言を要求した前記生徒間に対して空きチャネ
ルを選択し、この空きチャネルを当該生徒間へ指定し、
前記空きチャネルを指定された生徒間の前記ＤＡＭＡ制
御装置は、前記発言要求用チャネルをこの空きチャネル
に切替えることにより、前記生徒間から前記教師局への
発言を当該空きチャネルで伝送させることを特徴とする
。(Means for Solving the Problems) In order to solve the above-mentioned problems, the satellite correspondence education system provided by the present invention provides communication between a teacher's station and a plurality of students.
A correspondence education system conducted by satellite communication with broadcasting capability, comprising a small capacity satellite communication transceiver, a DAMA control device, and an educational system terminal device, respectively between the teacher station and the student, A channel is provided for sending a speaking request signal from the students to the teacher station, and the DAMA control device of the teacher station creates an empty channel for the students who have requested to speak through this speaking request channel. Select and specify this free channel to the relevant student,
The DAMA control device between the students who have designated the free channel switches the comment request channel to the free channel, thereby transmitting the comments from the students to the teacher station over the free channel. shall be.
（実施例） 以下、本発明について図面を参照して説明する。(Example) Hereinafter, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例の衛星通信教育システムの主
要部を示すブロック図、第２図は本実施例における音声
及び信号の送受信に関するシーケンスを示す図である。FIG. 1 is a block diagram showing the main parts of a satellite correspondence education system according to an embodiment of the present invention, and FIG. 2 is a diagram showing a sequence regarding transmission and reception of audio and signals in this embodiment.
教師局９の送受信機３は、２個の受信用チャネル及び１
個の送信用チャネルを持ち、送信用チャネルをＦｌに、
受信用チャネルのうち１個をＦ３の周波数にそれぞれ設
定しておく、また、生徒間１０−１．１０−２．・・・
、１０−Ｎの送受信機４は、送信用及び受信用チャネル
を１個ずつ持っており、通常は送信用チャネルをＦ３、
受信用チャネルをＦｌの周波数にそれぞれ設定しておく
。The transmitter/receiver 3 of the teacher station 9 has two reception channels and one
The transmission channel is Fl,
One of the reception channels is set to the frequency of F3, and 10-1, 10-2. ...
, 10-N has one transmission channel and one reception channel, and normally the transmission channels are F3, F3,
Each receiving channel is set to the frequency of Fl.
教師局９からの講義は、Ｆ１チャネルに音声をのせて各
生徒間１０−１．１０−２．・・・、１０−Ｎへ放送さ
れる。衛星通信は１度に多数の対向局へ通信できる回報
性を持つので、比較的容易にこの放送を行える０例えば
生徒間１０−１から教師局９へ質問する場合に、生徒間
１０−１の生徒は、生徒卓８から質問要求をＦ３チャネ
ルにのせて送出する。The lecture from the teacher's station 9 is broadcast on the F1 channel and is broadcast between students at 10-1, 10-2. ..., broadcast to 10-N. Satellite communication has the ability to broadcast to many opposing stations at once, so this broadcasting can be done relatively easily. For example, when students 10-1 ask a question to teacher station 9, The student sends a question request from the student desk 8 on the F3 channel.
この質問要求を受けた教師局９は、教師卓７上で発言す
る生徒を選択し、生徒間１０−１へ許可信号をＦ１チャ
ネルにのせて送出する。このときＤＡＭＡ制御装置５は
、空きチャネルＦ２を選択し、この情報を周波数制御信
号として前記許可信号と共に生徒間１０−１へ送出する
。教師局９から送出された許可信号及び周波数制御信号
を受けた生徒間１０−１のＤＡＭＡ制御装置６は、周波
数Ｆ３に設定されていた送信用チャネルを前記周波数制
御信号により指定された周波数Ｆ２に設定し、教師局９
へ質問内容の音声を送出する。教師局９では、２個の受
信用チャネルのうち周波数Ｆ３に設定されたチャネルで
ないチャネルを周波数Ｆ２に設定して、この質問内容を
受は取る。教師局９は、必要に応じて質問内容及びその
回答をＦ１チャネルにのせて各生徒間１０−１．１０−
２．・・・、１０−Ｎへ放送することもできる。質問を
終えた生徒間１０−１は、平常通り送信用チャネルをＦ
３に、受信用チャネルをＦｌに設定する。教師局９では
常時Ｆ３チャネルを監視していて、質問要求のあった生
徒間１０−１．１０−２．・・・、１０−Ｎを検出し、
これらを順次指名していく形で質疑応答を行うことがで
きる。Upon receiving this question request, the teacher's station 9 selects a student who will speak on the teacher's desk 7, and sends a permission signal to the students 10-1 on the F1 channel. At this time, the DAMA control device 5 selects the vacant channel F2, and sends this information as a frequency control signal to the inter-student 10-1 together with the permission signal. The DAMA control device 6 of the student 10-1 receives the permission signal and the frequency control signal sent from the teacher station 9, and changes the transmission channel set to the frequency F3 to the frequency F2 specified by the frequency control signal. Set Teacher Station 9
Sends the audio of the question to the user. The teacher station 9 sets the channel other than the one set to the frequency F3 among the two receiving channels to the frequency F2, and receives the content of the question. The teacher's station 9 transmits the question contents and their answers on the F1 channel as necessary and sends them to each student.
2. ..., 10-N. After completing the question, student 10-1 changed the transmission channel to F as usual.
3, set the reception channel to Fl. Teacher station 9 constantly monitors the F3 channel, and answers questions from students 10-1, 10-2. ..., 10-N is detected,
Questions and answers can be held by naming these people one by one.
本実施例では、Ｆ１チャネルは教師局９から生徒間１０
−１．１０−２．・・・、１０−Ｎ方向への音声及び信
号チャネル、Ｆ２チャネルは生徒間１０−１゜１０−２
、・・・、１０−Ｎから教師局９方向への音声チャネ
ル、Ｆ３チャネルは生徒間１０−１．１（１−２゜・・
・、１０−Ｎから教師局９方向への信号チャネルとして
、それぞれ用いられている。Ｆ２チャネルは、衛星通信
技術のＤＡＭＡ方式により、生徒間１〇−ｉ、１ｏ−２
，・・・、１０−Ｎから要求して教師局って割当てられ
る。In this embodiment, the F1 channel is from the teacher station 9 to the student station 10.
-1.10-2. ..., audio and signal channels in the 10-N direction, F2 channel is 10-1°10-2 between students
,..., the audio channel from 10-N to the teacher station 9 direction, the F3 channel is 10-1.1 (1-2°...
. , 10-N are used as signal channels toward the teacher station 9, respectively. The F2 channel uses the DAMA method of satellite communication technology to communicate between students at 10-i and 1o-2.
, . . . , the teacher station is assigned upon request from 10-N.
（発明の効果）
以上説明したように本発明は、衛星回線を用いて通信教
育網を構築することにより、生徒間を比較的広範囲に設
置できる。また、衛星通信は回報性を備えているので、
多数の生徒間に対して容易に講義を放送できる。さらに
、教師局へ発言要求を行った生徒局に対して空きチャネ
ルを割当てるＤＡＭＡ方式を用いることにより、教師局
と生徒局との間の衛星回線を節約すると共に、教師局に
おいて各生徒局の発言を整理しながら順次閉いていくこ
とができる。(Effects of the Invention) As explained above, according to the present invention, by constructing a correspondence education network using satellite lines, it is possible to establish a correspondence education network over a relatively wide area among students. In addition, since satellite communication has repeatability,
Lectures can be easily broadcast to a large number of students. Furthermore, by using the DAMA method, which allocates an empty channel to a student station that has made a request to speak to the teacher station, the satellite link between the teacher station and the student station is saved, and each student station can speak at the teacher station. You can close them one by one while organizing them.
本発明にはこのような効果がある。The present invention has such effects.
第１図は本発明の一実施例の衛星通信教育システムの主
要部を示すブロック図、第２図は本実施例における音声
及び信号の送受信に関するシーケンスを示す図である。
１．２・・・アンテナ、３．４・・・送受信機、５，６
・・・ＤＡＭＡ制御装置、７・・・教師卓、８・・・生
徒卓、９・・・教師局、１０−１．１０−２．・・・、
１０−Ｎ・・・生徒局。FIG. 1 is a block diagram showing the main parts of a satellite correspondence education system according to an embodiment of the present invention, and FIG. 2 is a diagram showing a sequence regarding transmission and reception of audio and signals in this embodiment. 1.2... Antenna, 3.4... Transmitter/receiver, 5, 6
. . . DAMA control device, 7 . . . Teacher desk, 8 . . Student desk, 9 . . . Teacher station, 10-1.10-2. ...,
10-N...Student Bureau.
Claims (1)
信により行う通信教育システムであって、前記教師局及
び前記生徒局の各々に、小容量衛星通信送受信機と、Ｄ
ＡＭＡ制御装置と、教育システム用端末装置とを備え、 前記生徒局から前記教師局へ発言要求信号を送出するた
めのチャネルを設けてあり、 前記教師局の前記ＤＡＭＡ制御装置は、この発言要求用
チャネルにより発言を要求した前記生徒局に対して空き
チャネルを選択し、この空きチャネルを当該生徒局へ指
定し、 前記空きチャネルを指定された生徒局の前記ＤＡＭＡ制
御装置は、前記発言要求用チャネルをこの空きチャネル
に切替えることにより、前記生徒局から前記教師局への
発言を当該空きチャネルで伝送させることを特徴とする
衛星通信教育システム。[Scope of Claims] A correspondence education system that performs communication between a teacher station and a plurality of student stations by satellite communication with broadcast characteristics, wherein each of the teacher station and the student stations has a small-capacity satellite communication transmission/reception system. Machine and D
The DAMA control device of the teacher station is equipped with an AMA control device and an educational system terminal device, and is provided with a channel for sending a comment request signal from the student station to the teacher station. Selects an empty channel for the student station that has requested to speak on the channel, and designates this empty channel to the student station, and the DAMA control device of the student station to which the empty channel is designated uses the speaking request channel. A satellite correspondence education system characterized in that by switching to the vacant channel, the statement from the student station to the teacher station is transmitted over the vacant channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12922287A JPS63292733A (en) | 1987-05-25 | 1987-05-25 | Satellite communication education system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12922287A JPS63292733A (en) | 1987-05-25 | 1987-05-25 | Satellite communication education system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63292733A true JPS63292733A (en) | 1988-11-30 |
Family
ID=15004165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12922287A Pending JPS63292733A (en) | 1987-05-25 | 1987-05-25 | Satellite communication education system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63292733A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0715707A (en) * | 1993-06-25 | 1995-01-17 | Nec Corp | Question accepting type television education system |
-
1987
- 1987-05-25 JP JP12922287A patent/JPS63292733A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0715707A (en) * | 1993-06-25 | 1995-01-17 | Nec Corp | Question accepting type television education system |
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