JPH02177618A - Signal transmission system - Google Patents
Signal transmission systemInfo
- Publication number
- JPH02177618A JPH02177618A JP33481888A JP33481888A JPH02177618A JP H02177618 A JPH02177618 A JP H02177618A JP 33481888 A JP33481888 A JP 33481888A JP 33481888 A JP33481888 A JP 33481888A JP H02177618 A JPH02177618 A JP H02177618A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- signal
- transmission line
- main
- main system
- 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
- 230000008054 signal transmission Effects 0.000 title claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000005856 abnormality Effects 0.000 abstract description 7
- 238000004891 communication Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、複数の送受信装置からなり、主系予備系の２
つの伝送路をループ状に構成する信号伝送方式に関する
。[Detailed Description of the Invention] [Industrial Application Field] The present invention consists of a plurality of transmitting/receiving devices, and has two main and standby systems.
This invention relates to a signal transmission method that configures two transmission lines in a loop shape.
従来、この種の信号伝送方式は、通常時には主系で信号
の送受信を行い、伝送路に異常が発生した場合に、ルー
プバック動作、又は系切替え動作を行い通信断となるこ
とを防止していた。Conventionally, in this type of signal transmission method, signals are normally sent and received in the main system, and when an abnormality occurs in the transmission path, a loopback operation or system switching operation is performed to prevent communication interruption. Ta.
上述した従来の信号伝送方式は、伝送路に異常が発生し
た場合にループバック動作、又は系切替え動作を行い、
通信断となることを防止するために詳細な異常検出手段
と複雑な制御手順を必要とし、装置が複雑高価となり、
かつシステムの理解が容易でないという欠点がある。The conventional signal transmission method described above performs loopback operation or system switching operation when an abnormality occurs in the transmission line.
In order to prevent communication interruptions, detailed abnormality detection means and complicated control procedures are required, making the equipment complicated and expensive.
Another drawback is that the system is not easy to understand.
本発明の信号伝送方式は、複数の送受信装置がらなり主
系予備系の２つの伝送路をループ状に構成し、送信側で
は前記主系予備系の伝送路に同一信号を送出し、受信側
では、前記主系予備系の伝送路のいずれか一方の信号を
選択して受信することを特徴とする。The signal transmission system of the present invention consists of a plurality of transmitting and receiving devices, and two transmission paths of the main system and protection system are configured in a loop shape, and the transmitting side sends out the same signal to the transmission path of the main system and protection system, and the receiving side The present invention is characterized in that a signal from one of the transmission lines of the main system and the protection system is selected and received.
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のブロック図である。FIG. 1 is a block diagram of one embodiment of the present invention.
本実施例は、複数の送受信袋Ｗ３からなり、主系と予備
系の伝送路４．５をループ状に構成し、送信側では主系
と予備系の両伝送路４．５に同一信号を送出し、受信側
では主系予備系の伝送路４．５のいずれか一方の信号を
選択して受信するように構成する。This embodiment consists of a plurality of transmitting/receiving bags W3, and the main and standby transmission lines 4.5 are configured in a loop, and on the transmitting side, the same signal is sent to both the main and standby transmission lines 4.5. The transmitting and receiving sides are configured to select and receive signals from either the main transmission line or the backup transmission line 4.5.
次に、動作について、説明を簡単にするために送受信装
置が２つの場合について行う。Next, in order to simplify the explanation, the operation will be described for a case where there are two transmitting and receiving devices.
送信回路２は送受信装置３から入力する送信４号を主系
伝送路４及び予備系伝送路５に送出する。主系伝送路４
及び予備系伝送路５を介して伝送された信号は系切替え
回路１に入力され、主系予備系いずれか一方の信号を選
択した後に、送受信装置ｆ３に入力する。The transmitting circuit 2 sends out a transmission signal 4 inputted from the transmitting/receiving device 3 to the main transmission line 4 and the protection transmission line 5. Main transmission line 4
The signals transmitted via the protection transmission line 5 are input to the system switching circuit 1, and after selecting one of the signals of the main system and the protection system, the signals are input to the transmitting/receiving device f3.
このようにすると、一方の伝送路に異常が発生したとき
他方の伝送路に切替えることによって通信断となること
を防止できる。In this way, when an abnormality occurs in one transmission line, switching to the other transmission line can prevent communication interruption.
以上説明したように、本発明は、送信４号を主系予備系
の両伝送路に送出し、受信側で主系予備系いずれから受
信するかを選択することにより、詳細な異常検出手段と
複雑な制御手順を必要とせず単純な構成にできるという
効果がある。As explained above, the present invention provides detailed abnormality detection means by sending the transmission No. 4 to both the main and protection channels, and selecting from which of the main and protection channels the receiving side receives the signal. This has the effect of allowing a simple configuration without requiring complicated control procedures.
第１図は本発明の一実施例のブロック図である。
１・・・系選択回路、２・・・送信回路、３・・・送受
信装置、４・・・主系伝送路、５・・・予備系伝送路。FIG. 1 is a block diagram of one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... System selection circuit, 2... Transmission circuit, 3... Transmission/reception device, 4... Main transmission line, 5... Backup transmission line.
Claims (1)
ループ状に構成し、送信側では前記主系予備系の伝送路
に同一信号を送出し、受信側では、前記主系予備系の伝
送路のいずれか一方の信号を選択して受信することを特
徴とする信号伝送方式。The two transmission lines of the main protection system are configured in a loop, consisting of a plurality of transmitting and receiving devices, and the transmitting side sends the same signal to the transmission path of the main protection system, and the receiving side sends the same signal to the transmission path of the main protection system. A signal transmission method characterized by selectively receiving a signal from either one of the transmission paths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33481888A JPH02177618A (en) | 1988-12-27 | 1988-12-27 | Signal transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33481888A JPH02177618A (en) | 1988-12-27 | 1988-12-27 | Signal transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02177618A true JPH02177618A (en) | 1990-07-10 |
Family
ID=18281560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33481888A Pending JPH02177618A (en) | 1988-12-27 | 1988-12-27 | Signal transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02177618A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59163923A (en) * | 1983-03-08 | 1984-09-17 | Nec Corp | Route changeover system |
-
1988
- 1988-12-27 JP JP33481888A patent/JPH02177618A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59163923A (en) * | 1983-03-08 | 1984-09-17 | Nec Corp | Route changeover system |
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