JPS63111754A - Satellite facsimile communication control system - Google Patents
Satellite facsimile communication control systemInfo
- Publication number
- JPS63111754A JPS63111754A JP25907686A JP25907686A JPS63111754A JP S63111754 A JPS63111754 A JP S63111754A JP 25907686 A JP25907686 A JP 25907686A JP 25907686 A JP25907686 A JP 25907686A JP S63111754 A JPS63111754 A JP S63111754A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- reception
- circuit
- information
- control circuit
- 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.)
- Granted
Links
- 238000004891 communication Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 117
- 239000000872 buffer Substances 0.000 claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 3
- 102000015779 HDL Lipoproteins Human genes 0.000 description 2
- 108010010234 HDL Lipoproteins Proteins 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Facsimiles In General (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、衛星を利用した紙面電送の衛星紙面電送通信
制御方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a satellite paper transmission communication control system for paper transmission using a satellite.
本発明は、衛星を利用して主局から従局へ紙面情報およ
び制御情報を送る電送通信の制御を行う衛星紙面電送通
信制御方式において、
主局において、上記従局との間の電送通信に要する衛星
区間での遅延時間を測定し、測定された遅延時間に対応
した最適な情報フレーム長および送信回線バッファサイ
ズを設定して紙面情報および制御情報を送信し、従局に
おいては、上記主局からの紙面情報および制御情報内の
情報フレーム長を読み取り回線受信バッファサイズを設
定切り替えすることにより、
衛星区間での遅延時間中におけるフラグ連送の必要性を
なくし、伝送効率を向上させたものである。The present invention relates to a satellite paper transmission communication control system that uses satellites to control electrical transmission communication that sends paper information and control information from a master station to a slave station. The delay time in the section is measured, the optimal information frame length and transmission line buffer size are set corresponding to the measured delay time, and the paper information and control information are transmitted. By reading the information frame length in the information and control information and changing the setting of the line reception buffer size, it eliminates the need for continuous flag transmission during the delay time in the satellite section and improves transmission efficiency.
従来の衛星紙面電送通信制御方式に関して、第４図と、
第５図Ｔａ）および（ｂ）と第６図とを参照して説明す
る。第４図は従来例を示すブロック構成図、第５図（ａ
）および（ｂ）は従来のＨＤＬＣ（ハイレベルデータリ
ンク制御手順）フレームフォーマットの内容および送受
信回線の面数を示す説明図、および第６図は従来のＨＤ
ＬＣフレームの送受信形態を示す説明図である。Regarding the conventional satellite paper transmission communication control system, Figure 4 and
This will be explained with reference to FIGS. 5(a) and 5(b) and FIG. 6. Fig. 4 is a block diagram showing a conventional example, and Fig. 5 (a
) and (b) are explanatory diagrams showing the contents of the conventional HDLC (high-level data link control procedure) frame format and the number of transmitting/receiving lines, and FIG.
FIG. 2 is an explanatory diagram showing a transmission/reception form of an LC frame.
本従来例は、主局として、紙面電送の主局の送受信制御
を行う主局送受信監視回路１１と、紙面情報および制御
情報の送信制御を行う高速送信制御回路１２と、従局か
らの応答情報を受信する低速受信制御回路１３とを含み
、従局として、主局からの紙面情報および制御情報の受
信制御を行う高速受信制御回路１６と、紙面電送の従局
の送受信制御を行う従局送受信監視回路１５と、応答情
報を送信する低速送信制御回路１７とを含んでいる。In this conventional example, the main station includes a main station transmission/reception monitoring circuit 11 that controls the transmission and reception of the main station for paper transmission, a high-speed transmission control circuit 12 that controls the transmission of paper information and control information, and a high-speed transmission control circuit 12 that controls the transmission and reception of paper information and control information. a high-speed reception control circuit 16 that controls the reception of paper information and control information from the master station as a slave station; and a slave station transmission/reception monitoring circuit 15 that controls the transmission and reception of the slave station for paper transmission. , and a low-speed transmission control circuit 17 that transmits response information.
そして、地上系でのそのままの伝送速度（例えば主局か
ら従局方向の伝送速度１２８．１４４．１９２ＫＢＰＳ
、従局から主局方向の伝送速度４．８ＫＢＰＳ）で衛星
紙面電送を行った場合、第５図（ａｌおよび（ｂ）に示
すように紙面情報および制御情報のフレームサイズおよ
び送受信回線バッファサイズが、３３６または６７２バ
イトのいずれかに固定され、また、第６図に示すように
衛星区間での遅延時間（約２５０１ｍ５）のため、アウ
トスタンディング（応答時間を待たずに連続して主局か
ら従局へ送信可能なフレーム数）以内に応答情報を低速
受信制御回路１３で１個も受信されず、その間、高速送
信制御回路１２は、フラグ連送（タイムフィル）を行う
。Then, the transmission speed as it is in the terrestrial system (for example, the transmission speed from the master station to the slave station is 128.144.192KBPS)
When satellite paper transmission is performed at a transmission rate of 4.8 KBPS from the slave station to the master station), the frame size and transmission/reception line buffer size of the paper information and control information are as shown in Fig. 5 (al and (b)). It is fixed to either 336 or 672 bytes, and as shown in Figure 6, due to the delay time (approximately 2501m5) in the satellite section, outstanding (from the master station to the slave station continuously without waiting for the response time) The low-speed reception control circuit 13 does not receive any response information within the number of frames that can be transmitted, and during that time, the high-speed transmission control circuit 12 continuously transmits flags (time fill).
上述した従来の衛星紙面電送通信制御方式は、紙面情報
および制御情報が衛星区間での遅延時間に即応した最適
なフレームサイズとなっていないため、高速送信制御回
路１２におけるフラグ運送を行う必要があり、伝送効率
が低下する欠点があった。In the conventional satellite paper transmission communication control method described above, the paper information and control information do not have an optimal frame size that corresponds to the delay time in the satellite section, so it is necessary to carry out flag transportation in the high-speed transmission control circuit 12. However, there was a drawback that the transmission efficiency decreased.
本発明の目的は、上記の欠点を除去することにより、伝
送効率の低下を防止した衛星紙面電送通信制御方式を提
供することにある。An object of the present invention is to provide a satellite paper transmission communication control system that prevents a decrease in transmission efficiency by eliminating the above-mentioned drawbacks.
本発明は、紙面電送の送受信制御を行う主局送受信監視
回路、紙面情報および制御情報の送信制御を行う高速送
信制御回路および従局からの応答情報を受信する低速受
信制御回路を含む主局と、紙面電送の送受信制御を行う
従局送受信監視回路、上記主局からの紙面情報および制
御情報の受信制御を行う高速受信制御回路および応答情
報の送信制御を行う低速送信制御回路を含む従局とを備
えた衛星紙面電送通信制御方式において、上記主局は、
上記従局との間の電送通信に要する衛星区間での遅延時
間を測定しそれに対応した最適な情報フレーム長および
送信回線バッファサイズを設定出力する遅延測定回路を
含み、上記従局は、上記主局からの紙面情報および制御
情報内の情報フレーム長を読み取り回線受信バッファサ
イズを設定出力するフレーム長切替回路を含むことを特
徴とする。The present invention provides a main station including a main station transmission/reception monitoring circuit that controls the transmission and reception of paper data transmission, a high-speed transmission control circuit that controls the transmission of paper information and control information, and a low-speed reception control circuit that receives response information from slave stations; A slave station including a slave station transmission/reception monitoring circuit that controls the transmission and reception of paper transmission, a high-speed reception control circuit that controls the reception of paper information and control information from the master station, and a low-speed transmission control circuit that controls the transmission of response information. In the satellite paper transmission communication control system, the above main station is
The slave station includes a delay measurement circuit that measures the delay time in the satellite section required for transmission communication with the slave station, and sets and outputs the optimal information frame length and transmission line buffer size corresponding to the delay time, and the slave station is connected to the master station. The apparatus is characterized in that it includes a frame length switching circuit that reads the information frame length in the page information and control information, and sets and outputs the line reception buffer size.
遅延測定回路において、主局送受信監視回路で送信指示
後、従局からの応答情報を受信する時間を測定すること
により、衛星区間での遅延時間を求め、その遅延時間に
即応した最適な、すなわちアウトスタンディング以内に
低速受信回路に応答情報を受信できる送信情報フレーム
長および送信回線バッファサイズを設定し、主局送受信
監視回路へ伝達する。そしてこれにより高速送信制御回
路で上記設定された最適フレーム長を従局の高速受信制
御回路へ送信する。そして、フレーム長切替回路により
上記最適フレーム長を読み取り受信回線バッファサイズ
を設定し、従局送受信監視回路へ伝達する。そしてこれ
により従局受信監視回路で管理する受信バッファサイズ
を切り替える。In the delay measurement circuit, the delay time in the satellite section is determined by measuring the time it takes for the master station transmission/reception monitoring circuit to receive response information from the slave station after sending a transmission instruction. The transmission information frame length and transmission line buffer size that allow the low-speed reception circuit to receive response information within standing time are set and transmitted to the main station transmission/reception monitoring circuit. Then, the high-speed transmission control circuit transmits the optimum frame length set above to the high-speed reception control circuit of the slave station. Then, the frame length switching circuit reads the optimum frame length, sets the reception line buffer size, and transmits it to the slave station transmission/reception monitoring circuit. This switches the reception buffer size managed by the slave station reception monitoring circuit.
従って、アウトスタンディング以内に応答情報を受信す
ることができ、従来の遅延時間中におけるフラグ連送は
必要なくなり、伝送効率を向上させることが可能となる
。Therefore, response information can be received within an outstanding time frame, and the conventional continuous transmission of flags during the delay time is no longer necessary, making it possible to improve transmission efficiency.
以下、本発明の実施例について図面を参照して説明する
。Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例を示すブロック構成図、第２
図（ａ）および（ｂ）は本発明によるＨＤＬＣフレーム
フォーマットの内容および送受信回線バッファの面数を
示す説明図、および第３図は本発明のＨＤＬＣフレーム
の送受信形態を示す説明図である。FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG.
Figures (a) and (b) are explanatory diagrams showing the contents of the HDLC frame format and the number of transmission/reception line buffers according to the present invention, and Fig. 3 is an explanatory diagram showing the transmission/reception form of the HDLC frame according to the present invention.
本実施例は、紙面電送の主局の送受信制御を行う主局送
受信監視回路１と、紙面情報および制御情報の送信制御
を行う高速送信制御回路２と、従局からの応答情報を受
信する低速受信制御回路３と、主局送受信監視回路１で
送信指示後、従局からの応答情報を受信する時間を測定
することにより、衛星区間での遅延時間を求め、遅延時
間に即応した最適な情報フレーム長を選択、かつ、送信
回線バッファサイズを設定する遅延測定回路４と、主局
からの紙面情報および制御情報の受信制御を行う高速受
信制御回路６と、紙面電送の従局の送受信制御を行う従
局送受信監視回路５と、応答情報を送信する低速送信制
御回路７と、主局からの紙面情報および制御情報内の情
報フレーム長を読み取り、回線受信バッファサイズを設
定するフレーム長切替回路８とを含んでいる。This embodiment consists of a main station transmission/reception monitoring circuit 1 that controls transmission and reception of the main station for paper transmission, a high-speed transmission control circuit 2 that controls the transmission of paper information and control information, and a low-speed reception circuit that receives response information from slave stations. By measuring the time it takes for the control circuit 3 and the master station transmission/reception monitoring circuit 1 to receive response information from the slave station after sending a transmission instruction, the delay time in the satellite section is determined, and the optimal information frame length that immediately responds to the delay time is determined. a delay measurement circuit 4 that selects and sets the transmission line buffer size, a high-speed reception control circuit 6 that controls the reception of paper information and control information from the master station, and a slave station transmission/reception circuit that controls the transmission and reception of the slave station for paper transmission. It includes a monitoring circuit 5, a low-speed transmission control circuit 7 that transmits response information, and a frame length switching circuit 8 that reads the information frame length in the paper information and control information from the main station and sets the line reception buffer size. There is.
本発明の特徴は、第１図において、遅延測定回路４およ
びフレーム長切替回路８を設けたことにある。A feature of the present invention is that, in FIG. 1, a delay measurement circuit 4 and a frame length switching circuit 8 are provided.
次に、本実施例の動作について、第２図（ａ）および（
ｂ）と第３図とを参照して説明する。Next, regarding the operation of this embodiment, FIGS. 2(a) and (
This will be explained with reference to b) and FIG.
地上系でのそのままの伝送速度（主局から従局方向の伝
送速度１２Ｂ 、１４４．１９２ ＫＢＰＳ、従局から
主局方向の伝送速度４．８ＫＢＰＳ）で衛星紙面電送を
行う場合、主局送受信監視回路１の指示で、第２図（ａ
）に示すような遅延測定のためのテストパターンを高速
送信制御回路２から送信し、高速受信制御回路６で受信
すると、その応答情報を低速送信制御回路７から送信し
、低速受信制御回路３で受信する。主局の送信指示から
受信指示までの時間を遅延測定回路４で測定し、アウト
スタンディング以内に低速受信制御回路３に応答情報を
受信できる送信情報フレーム長および送信バッファサイ
ズを遅延測定回路４から主局送受信監視回路１へ伝達さ
れ、高速送信制御回路２で遅延時間に即応した最適な情
報フレーム長（ｍバイト＝ｍｌ−、ｍｔ−、ｍｚ”−’
）を高速受信制御回路６へＨＤＬＣフォーマントで送信
する。また、高速受信制御回路６で受信した上記ＨＤＬ
Ｃフォーマットは、フレーム長切替回路８で第２図（ａ
）に示す情報フレーム長が読み取られ、従局送受信監視
回路５で管理する受信回線バッファサイズを切り替える
ことによって、第３図に示すようなフラグ連送（タイム
フィル）のない伝送効率の高い衛星紙面電送通信ができ
る。When performing satellite paper transmission at the same transmission speed as in the terrestrial system (transmission speed from the master station to the slave station: 12B, 144.192 KBPS, transmission rate from the slave station to the master station: 4.8KBPS), the master station transmission/reception monitoring circuit 1 Figure 2 (a)
) When a test pattern for delay measurement as shown in FIG. Receive. The delay measurement circuit 4 measures the time from the master station's transmission instruction to the reception instruction, and determines the transmission information frame length and transmission buffer size that allow the low-speed reception control circuit 3 to receive response information within an outstanding period. It is transmitted to the station transmission/reception monitoring circuit 1, and the high-speed transmission control circuit 2 determines the optimum information frame length (m bytes = ml-, mt-, mz"-'
) is transmitted to the high-speed reception control circuit 6 in HDLC format. In addition, the HDL received by the high-speed reception control circuit 6
For C format, the frame length switching circuit 8 is used as shown in Fig. 2 (a
) is read, and by switching the reception line buffer size managed by the slave station transmission/reception monitoring circuit 5, satellite paper transmission with high transmission efficiency without continuous flag transmission (time fill) as shown in Fig. 3 is achieved. Can communicate.
以上、説明したように本発明は、衛星区間の遅延時間を
測定する遅延測定回路で、送信回路バッファおよび送信
する情報フレーム長サイズを設定し、かつフレーム長切
替回路で情報フレーム長を読み取り、回線受信バッファ
サイズを設定することにより、伝送効率の高い衛星紙面
電送通信ができる効果がある。As explained above, the present invention uses a delay measurement circuit that measures the delay time between satellite sections to set the transmission circuit buffer and the length size of the information frame to be transmitted, and reads the information frame length with the frame length switching circuit. Setting the reception buffer size has the effect of enabling satellite paper transmission communication with high transmission efficiency.
第１図は本発明の一実施例を示すブロック構成図。
第２図（ａ）および山）はそれぞれ本発明による）（Ｄ
ＬＣフレームフォーマットの内容および送受信回線バッ
ファの面数を示す説明図。
第３図は本発明によるＨＤＬＣフレームの送受信形態を
示す説明図。
第４図は従来例を示すブロック構成図。
第５図（ａ）および山）はそれぞれ従来例によるＨＤＬ
Ｃフレームフォーマットの内容および送受信回線バッフ
ァの面数を示す説明図。
第６図は従来例によるＨＤＬＣフレームの送受信形態を
示す説明図。
１．１１・・・主局送受信監視回路、２．１２・・・高
速送信制御回路、３．１３・・・低速受信制御回路、４
・・・遅延測定回路、５．１５・・・従局送受信監視回
路、６．１６・・・高速受信制御回路、７．１７・・・
低速送信制御回路、８・・・フレーム長切替回路。FIG. 1 is a block diagram showing an embodiment of the present invention. Figure 2(a) and mountain) are each according to the present invention) (D
FIG. 3 is an explanatory diagram showing the contents of an LC frame format and the number of sides of a transmission/reception line buffer. FIG. 3 is an explanatory diagram showing a transmission/reception form of an HDLC frame according to the present invention. FIG. 4 is a block diagram showing a conventional example. Fig. 5(a) and the peak) are respectively HDLs according to the conventional example.
FIG. 3 is an explanatory diagram showing the contents of a C frame format and the number of sides of a transmission/reception line buffer. FIG. 6 is an explanatory diagram showing a transmission/reception form of an HDLC frame according to a conventional example. 1.11... Main station transmission/reception monitoring circuit, 2.12... High speed transmission control circuit, 3.13... Low speed reception control circuit, 4
...Delay measurement circuit, 5.15...Slave station transmission/reception monitoring circuit, 6.16...High speed reception control circuit, 7.17...
Low-speed transmission control circuit, 8... frame length switching circuit.
Claims (1)
（１）、紙面情報および制御情報の送信制御を行う高速
送信制御回路（２）および従局からの応答情報を受信す
る低速受信制御回路（３）を含む主局と、 紙面電送の送受信制御を行う従局送受信監視回路（５）
、上記主局からの紙面情報および制御情報の受信制御を
行う高速受信制御回路（６）および応答情報の送信制御
を行う低速送信制御回路（７）を含む従局と を備えた衛星紙面電送通信制御方式において、上記主局
は、上記従局との間の電送通信に要する衛星区間での遅
延時間を測定しそれに対応した最適な情報フレーム長お
よび送信回線バッファサイズを設定出力する遅延測定回
路（４）を含み、上記従局は、上記主局からの紙面情報
および制御情報内の情報フレーム長を読み取り回線受信
バッファサイズを設定出力するフレーム長切替回路（８
）を含むこと を特徴とする衛星紙面電送通信制御方式。(1) A master station transmission/reception monitoring circuit (1) that controls the transmission and reception of paper data transmission, a high-speed transmission control circuit (2) that controls the transmission of paper information and control information, and a low-speed reception control circuit (2) that receives response information from slave stations. 3) and a slave station transmission/reception monitoring circuit (5) that controls transmission and reception of paper transmissions.
, a satellite paper transmission communication control comprising a high-speed reception control circuit (6) that controls the reception of paper information and control information from the main station, and a slave station including a low-speed transmission control circuit (7) that controls the transmission of response information. In this method, the main station has a delay measurement circuit (4) that measures the delay time in the satellite section required for transmission communication with the slave station, and sets and outputs the optimal information frame length and transmission line buffer size corresponding to the delay time. The slave station includes a frame length switching circuit (8) that reads the information frame length in the paper information and control information from the master station and sets and outputs the line reception buffer size.
) A satellite paper transmission communication control system characterized by including:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25907686A JPH0622342B2 (en) | 1986-10-29 | 1986-10-29 | Satellite page transmission control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25907686A JPH0622342B2 (en) | 1986-10-29 | 1986-10-29 | Satellite page transmission control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63111754A true JPS63111754A (en) | 1988-05-17 |
| JPH0622342B2 JPH0622342B2 (en) | 1994-03-23 |
Family
ID=17328988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25907686A Expired - Lifetime JPH0622342B2 (en) | 1986-10-29 | 1986-10-29 | Satellite page transmission control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0622342B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006186789A (en) * | 2004-12-28 | 2006-07-13 | Hitachi Ltd | Satellite communication control method, server side terrestrial station device, and terminal side terrestrial station device |
| JP2010098430A (en) * | 2008-10-15 | 2010-04-30 | Sumitomo Electric Ind Ltd | Communication device |
-
1986
- 1986-10-29 JP JP25907686A patent/JPH0622342B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006186789A (en) * | 2004-12-28 | 2006-07-13 | Hitachi Ltd | Satellite communication control method, server side terrestrial station device, and terminal side terrestrial station device |
| JP2010098430A (en) * | 2008-10-15 | 2010-04-30 | Sumitomo Electric Ind Ltd | Communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0622342B2 (en) | 1994-03-23 |
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