JPH03216049A - Control path backup system - Google Patents
Control path backup systemInfo
- Publication number
- JPH03216049A JPH03216049A JP2013061A JP1306190A JPH03216049A JP H03216049 A JPH03216049 A JP H03216049A JP 2013061 A JP2013061 A JP 2013061A JP 1306190 A JP1306190 A JP 1306190A JP H03216049 A JPH03216049 A JP H03216049A
- Authority
- JP
- Japan
- Prior art keywords
- line
- speed
- public telephone
- data
- control path
- 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 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Time-Division Multiplex Systems (AREA)
- Communication Control (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は制御パスバックアップ方式に関し、特に時分割
多重化装置群と時分割多重化装置群を一元管理制御を行
う制御装置間の制御パスのバックアップ用に公衆電話回
線を使用する制御パスバックアップ方式に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a control path backup system, and in particular to a control path backup system between a time division multiplexing device group and a control device that centrally manages and controls the time division multiplexing device group. This invention relates to a control path backup method that uses public telephone lines for backup.
従来のこの種の制御パスバックアップ方式としては通常
使用する専用回線の制御パスと，バックアップ時の公衆
電話回線の制御パス上の伝送速度が同一となっていた。In the conventional control path backup method of this type, the transmission speed on the normally used dedicated line control path and the public telephone line control path during backup were the same.
上述した従来の制御パスバックアップ方式は、通常使用
する専用回線の制御パスと、通信回線障害時に使用する
公衆電話回線のバックアップ用の制御パス上の伝送速度
が同一でなければならないため、公衆電話回線で使用で
きる通信速度が２．４Ｋｂｐｓ， ４． ８ Ｋｂｐｓ
， ９． ６κｂｐｓ等に限定されるので、これに対応
し専用回線の制御パスの速度も限定されることになり、
従って制御装置からの制御を高速処理しようとしても制
御パスの速度制限により高速処理にも限界が生じるとい
う欠点がある。The conventional control path backup method described above requires the same transmission speed on the normally used dedicated line control path and the public telephone line backup control path used in the event of a communication line failure. The communication speed that can be used is 2.4Kbps, 4. 8 Kbps
, 9. 6κbps, etc., so the speed of the control path of the dedicated line is also limited accordingly.
Therefore, even if an attempt is made to process the control from the control device at high speed, there is a drawback that there is a limit to the high speed processing due to the speed limit of the control path.
本発明の制御パスバックアップ方式は、相互に通信回線
で接続されネットワークを形成する時分割多重化装置群
と前記時分割多重化装置群を一元的に管理制御する制御
装置とを接続する専用回線による制御パスと、前記通信
回線障害時に前記制御装置と前記時分割多重化装置群と
のバックアップ用の公衆電話回線による制御パスとの２
系統の制御パスを有して前記制御装置による制御を行な
う制御パスバックアップ方式において、前記専用回線を
介して前記制御装置から受信するデータに第１のフレー
ム信号を付加し前記通信回線上の伝送速度に速度変換す
る専用回線受信手段と、前記公衆電話回線を介して前記
制御装置から受信するデータに第２のフレーム信号を付
加し前記通信回線上の伝送速度に速度変換する公衆電話
回線受信手段と、前記通信回線もしくは専用回線ならび
に前記公衆電話回線のいずれかを介して受信するデータ
を前記通信回線に多重化送出する多重送出平段と、前記
第１および第２のフレーム信号を識別し受信データを前
記専用回線および公衆電話回線の伝送速度に変換して受
信する受信データ速度変換手段とを備えて構成される。The control path backup method of the present invention uses a dedicated line that connects a group of time division multiplexing devices connected to each other via communication lines to form a network and a control device that centrally manages and controls the group of time division multiplexing devices. a control path, and a control path using a public telephone line for backup between the control device and the time division multiplexing device group in the event of a communication line failure;
In a control path backup method in which a system has a control path and is controlled by the control device, a first frame signal is added to data received from the control device via the dedicated line to increase the transmission speed on the communication line. a dedicated line receiving means for converting the speed to the transmission speed on the communication line; and a public telephone line receiving means for adding a second frame signal to data received from the control device via the public telephone line and converting the speed to the transmission speed on the communication line. , a multiplex transmission stage for multiplexing and transmitting data received via either the communication line or the dedicated line or the public telephone line to the communication line; and a multiplex transmission stage for identifying the first and second frame signals and transmitting the received data. and reception data rate converting means for converting the data to the transmission rate of the dedicated line and the public telephone line and receiving the data.
また本発明の制御パスバックアップ方式は、前記受信デ
ータ速度変換手段における前記第１および第２のフレー
ム信号の識別をそれぞれのフレーム同期速度の差にもと
づいて行なう構成を有する。Further, the control path backup system of the present invention has a configuration in which the first and second frame signals are identified in the reception data rate conversion means based on the difference in frame synchronization rate.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例を示す構成図、第２図は本発
明のシステム楕成図、第３図は通信回線断におけるバッ
クアップ時のシステム構成図である。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a system elliptical diagram of the present invention, and FIG. 3 is a system block diagram at the time of backup when a communication line is disconnected.
第１図の実施例は、専用回線を介して制御装置から受信
するデータに第１のフレーム信号を付加し通信回線上の
伝送速度に速度変換する専用回線受信手段としての専用
回線受信回路２、フレーム生成速度変換回路３と、公衆
電話回線を介して制御装置から受信するデータに第２の
フレーム信号を付加し通信回線上の伝送速度に速度変換
する公衆電話回線受信手段としての公衆電話回線受信回
路４、フレーム生成速度変換回路５と、通信回線もしく
は専用回線ならびに公衆電話回線のいずれかを介して受
信するデータを通信回線に多重化送出する多重送出手段
としての分離回路１、選択回路６，７、多重回路８と、
上述した第１および第２のフレーム信号を識別し受信デ
ータを前記専用回線および公衆電話回線の伝送速度に変
換して受信する受信データ速度変換手段としてのフレー
ム同期速度変換回路９、制御データ受信回路１０とを備
えて成る。The embodiment shown in FIG. 1 includes a dedicated line receiving circuit 2 as a dedicated line receiving means that adds a first frame signal to data received from a control device via a dedicated line and converts the speed to the transmission speed on the communication line; Frame generation speed conversion circuit 3 and public telephone line reception as a public telephone line receiving means that adds a second frame signal to data received from the control device via the public telephone line and converts the speed to the transmission speed on the communication line. a circuit 4, a frame generation speed conversion circuit 5, a separation circuit 1 as a multiplex transmission means for multiplexing and transmitting data received via a communication line, a dedicated line, or a public telephone line to the communication line, a selection circuit 6, 7, multiplex circuit 8;
A frame synchronization speed conversion circuit 9 as a reception data speed conversion means for identifying the first and second frame signals described above and converting the received data to the transmission speed of the dedicated line and public telephone line for reception, and a control data reception circuit. 10.
次に、本実施例の動作について説明する。Next, the operation of this embodiment will be explained.
第１図に見る如く、時分割多重化装置は制御パスの入力
部として通信回線、専用回線、公衆電話回線の３種の回
線に接続される。As shown in FIG. 1, the time division multiplexing device is connected to three types of lines, ie, a communication line, a private line, and a public telephone line, as an input part of a control path.
通信回線から入力データは、分離回路１により制御パス
を分離して選択回路６へ送出する。専用回線からの入力
された速度■１のデータは専用回線受信回路２を介して
フレーム生成速度変換回路３によりフレームＦ１を付加
し通信回線へ多重する速度Ｖ３へ速度変換され、選択回
路６へ送出される。Input data from the communication line is separated into control paths by the separation circuit 1 and sent to the selection circuit 6. The data at speed 1 input from the dedicated line is sent through the dedicated line receiving circuit 2 to the frame generation speed conversion circuit 3, which adds frame F1 and converts the data to speed V3, which is multiplexed onto the communication line, and sends it to the selection circuit 6. be done.
選択回路６は、直接制御装置と専用回線で接続されてい
る時分割多重化装置にあっては専用回線側に、他の時分
割多重化装置では通信回線側が選択されている。The selection circuit 6 selects the dedicated line side in a time division multiplexing device that is directly connected to the control device through a dedicated line, and selects the communication line side in other time division multiplexing devices.
公衆電話回線から入力された速度ｖ２のデータは、公衆
電話回線受信回路４を介してフレーム生成速度変換回路
５によりフレームＦ２を付加し通信回線へ多重する速度
■３へ速度変換されて選択回路７へ送出される。選択回
路７は通常選択回路６からの信号を選択しており、公衆
電話回線からデータが公衆電話回線受信回路４に受信さ
れた時、受信回路４からの信号により選択回路７は公衆
電話回線の信号を選択する。The data at speed v2 inputted from the public telephone line passes through the public telephone line receiving circuit 4, is added frame F2 by the frame generation speed conversion circuit 5, and is converted to speed 3 for multiplexing onto the communication line, and then sent to the selection circuit 7. sent to. The selection circuit 7 normally selects the signal from the selection circuit 6, and when data is received by the public telephone line receiving circuit 4 from the public telephone line, the selection circuit 7 selects the signal from the public telephone line based on the signal from the receiving circuit 4. Select a signal.
選択回路７からのデータは多重回路８へ送出され他の時
分割多重化装置への通信回線へ多重化され伝送される。The data from the selection circuit 7 is sent to the multiplexing circuit 8, where it is multiplexed and transmitted onto a communication line to another time division multiplexer.
フレーム同期速度変換回路９は選択回路７からのフレー
ム同期をとり受信されたフレームがＦ１であれば速度Ｖ
１に、フレームＦ２であれば速度ｖ２に変換してデータ
を制御データ受信部１０へ送出する．制御データ受信部
１０はフレーム同期速度変換回路９からの情報により受
信速度をＶ１又はＶ２にして制御データを受信する．第
２図は、通信回線が全て正常である場合を示しており、
時分割多重化装置１１は専用回線１８を介して直接制御
装置１７と接続され、他の時分割多重化装置１１〜１６
は通信回線２０を介して接続され、全て専用回線の速度
■１にて通信を行なっている。The frame synchronization speed conversion circuit 9 performs frame synchronization from the selection circuit 7, and if the received frame is F1, the speed is V.
1, if it is frame F2, it is converted to speed v2 and the data is sent to control data receiving section 10. The control data receiving section 10 receives the control data with the reception speed set to V1 or V2 based on the information from the frame synchronization speed conversion circuit 9. Figure 2 shows a case where all communication lines are normal.
The time division multiplexing device 11 is directly connected to the control device 17 via a dedicated line 18, and is connected to the other time division multiplexing devices 11 to 16.
are connected via a communication line 20, and all communicate at the dedicated line speed 1.
第３図は、時分割多重化装置１２．１３間の通信回線２
０が通信断の場合を示し、時分割多重化装置１１〜１４
は第２図の場合と同様に速度■１にて制御装置ｌ７と通
信を行う。時分割多重化装置１５と制御装置１７とは公
衆電話回線で接続され、時分割多重化装置１５．１６へ
はフレームＦ２が受信され速度Ｖ２で通信を行う。Figure 3 shows the communication line 2 between the time division multiplexers 12 and 13.
0 indicates a communication disconnection, and time division multiplexers 11 to 14
communicates with the control device 17 at speed 1 as in the case of FIG. The time division multiplexer 15 and the control device 17 are connected by a public telephone line, and the time division multiplexer 15.16 receives the frame F2 and performs communication at a speed V2.
以上説明したように本発明は、通常使用する専用回線の
制御パスと、通信回線障害時に使用する公衆電話回線の
バックアップの制御パスの速度をそれぞれ独立に設定す
ることにより、専用回線の制御パスの速度を高速に設定
して通常時の制御装置からの制御が高速に行なうことが
できる効果がある。As explained above, the present invention independently sets the speeds of the normally used control path of the leased line and the backup control path of the public telephone line used in the event of a communication line failure, thereby improving the control path of the leased line. By setting the speed to a high speed, there is an effect that the control from the control device during normal operation can be performed at high speed.
第１図は本発明の一実施例を示す構成図、第２図は本発
明のシステム構成図、第３図は通信回線障害時のシステ
ム構成図である。
１・・・分離回路、２・・・専用回線受信回路、３・・
・フレーム生成速度変換回路、４・・・公衆電話回線受
信回路、５・・・フレーム生成速度変換回路、６．７・
・・選択回路、８・・・多重回路、９・・・フレーム同
期速度変換回路、１０・・・制御データ受信回路、１１
〜１６・・・時分割多重化装置、１７・・・制御装置、
１８・・・専用回線、１９・・・制御パス、２０・・・
通信回線、２１・・・公衆電話回線。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a system block diagram of the present invention, and FIG. 3 is a system block diagram in the event of a communication line failure. 1... Separation circuit, 2... Dedicated line receiving circuit, 3...
- Frame generation speed conversion circuit, 4... Public telephone line reception circuit, 5... Frame generation speed conversion circuit, 6.7.
... Selection circuit, 8... Multiplex circuit, 9... Frame synchronization speed conversion circuit, 10... Control data receiving circuit, 11
~16... Time division multiplexing device, 17... Control device,
18... Dedicated line, 19... Control path, 20...
Communication line, 21...Public phone line.
Claims (1)
時分割多重化装置群と前記時分割多重化装置群を一元的
に管理制御する制御装置とを接続する専用回線による制
御パスと、前記通信回線障害時に前記制御装置と前記時
分割多重化装置群とのバックアップ用の公衆電話回線に
よる制御パスとの２系統の制御パスを有して前記制御装
置による制御を行なう制御パスバックアップ方式におい
て、前記専用回線を介して前記制御装置から受信するデ
ータに第１のフレーム信号を付加し前記通信回線上の伝
送速度に速度変換する専用回線受信手段と、前記公衆電
話回線を介して前記制御装置から受信するデータに第２
のフレーム信号を付加し前記通信回線上の伝送速度の速
度変換する公衆電話回線受信手段と、前記通信回線もし
くは専用回線ならびに前記公衆電話回線のいずれかを介
して受信するデータを前記通信回線に多重化送出する多
重送出手段と、前記第１および第２のフレーム信号を識
別し受信データを前記専用回線および公衆電話回線の伝
送速度に変換して受信する受信データ速度変換手段とを
備えて成ることを特徴とする制御パスバックアップ方式
。 ２、前記受信データ速度変換手段における前記第１およ
び第２のフレーム信号の識別をそれぞれのフレーム同期
速度の差にもとづいて行なうことを特徴とする請求項１
記載の制御パスバックアップ方式。[Claims] 1. Control by a dedicated line that connects a group of time division multiplexing devices that are connected to each other via communication lines to form a network and a control device that centrally manages and controls the group of time division multiplexers. and a control path using a public telephone line for backup between the control device and the time division multiplexing device group in the event of a failure of the communication line, and the control path is controlled by the control device. In the backup method, a dedicated line receiving means adds a first frame signal to data received from the control device via the dedicated line and converts the speed to a transmission speed on the communication line; The data received from the control device includes a second
a public telephone line receiving means for adding a frame signal and converting the transmission rate on the communication line; and multiplexing data received via either the communication line, the dedicated line, or the public telephone line onto the communication line. and a receiving data rate converting means that identifies the first and second frame signals and converts the received data to the transmission speed of the dedicated line and public telephone line for reception. A control path backup method featuring: 2. Claim 1, wherein the first and second frame signals are identified in the received data rate converting means based on a difference in their respective frame synchronization rates.
Control path backup method described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013061A JP2689668B2 (en) | 1990-01-22 | 1990-01-22 | Control path backup method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013061A JP2689668B2 (en) | 1990-01-22 | 1990-01-22 | Control path backup method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03216049A true JPH03216049A (en) | 1991-09-24 |
| JP2689668B2 JP2689668B2 (en) | 1997-12-10 |
Family
ID=11822619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013061A Expired - Fee Related JP2689668B2 (en) | 1990-01-22 | 1990-01-22 | Control path backup method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2689668B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63181550A (en) * | 1987-01-23 | 1988-07-26 | Toshiba Corp | Modem device with managing function |
| JPS63248255A (en) * | 1987-04-03 | 1988-10-14 | Hitachi Ltd | Online data transmission system |
| JPS63158049U (en) * | 1987-04-06 | 1988-10-17 | ||
| JPH01264338A (en) * | 1988-04-15 | 1989-10-20 | Hitachi Ltd | Adapter for centralized control |
| JPH01269356A (en) * | 1988-04-21 | 1989-10-26 | Nec Corp | Communication line switching system |
-
1990
- 1990-01-22 JP JP2013061A patent/JP2689668B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63181550A (en) * | 1987-01-23 | 1988-07-26 | Toshiba Corp | Modem device with managing function |
| JPS63248255A (en) * | 1987-04-03 | 1988-10-14 | Hitachi Ltd | Online data transmission system |
| JPS63158049U (en) * | 1987-04-06 | 1988-10-17 | ||
| JPH01264338A (en) * | 1988-04-15 | 1989-10-20 | Hitachi Ltd | Adapter for centralized control |
| JPH01269356A (en) * | 1988-04-21 | 1989-10-26 | Nec Corp | Communication line switching system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2689668B2 (en) | 1997-12-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |