WO1994007317A1 - Appareil pour transmissions multiples - Google Patents
Appareil pour transmissions multiples Download PDFInfo
- Publication number
- WO1994007317A1 WO1994007317A1 PCT/JP1993/001338 JP9301338W WO9407317A1 WO 1994007317 A1 WO1994007317 A1 WO 1994007317A1 JP 9301338 W JP9301338 W JP 9301338W WO 9407317 A1 WO9407317 A1 WO 9407317A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission
- terminal node
- terminal
- multiplex
- bias
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 164
- 238000004891 communication Methods 0.000 claims abstract description 39
- 238000010586 diagram Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
Definitions
- the present invention relates to a multiplex transmission apparatus in which a plurality of terminal nodes are connected to two or more common transmission paths.
- a multiplex transmission device of two transmission lines (main lines), a first bias device for biasing a first transmission line to a power-supply-side potential and a bias device for biasing a second transmission line to a ground-side potential.
- a plurality of first terminal nodes having a second bias device for performing communication control of data, and a plurality of second terminal nodes having a communication control device for performing communication control of data. are connected to each other via these common transmission paths. That is, in the first terminal node, the first bias device and the communication control device are connected to the first transmission line via the first branch line and communicate with the second bias device and the communication control device. The device is connected to the second transmission line via the second branch line. In the second terminal node, the communication control device is connected to the first and second transmission paths via two branch lines, respectively. Then, the first and second terminal nodes exchange data with each other via these common transmission paths.
- each terminal node is connected to each transmission line via a joint connector and two branch lines. Have been.
- the communication control device of the terminal node When one of the branch lines is disconnected, and a terminal node connected to the transmission line transmits and receives data via the disconnected branch line, the communication control device of the terminal node: The connection to one of the transmission lines is broken. For this reason, data transmission was one-sided transmission via one unbroken branch line.
- An object of the present invention is to provide a multiple transmission device that can prevent a double failure and improve reliability in data transmission even when a transmission line is disconnected.
- Another object of the present invention is to provide a multiplex transmission device that can prevent a reflected wave from being generated in a transmission waveform.
- Another object of the present invention is to provide a multiplex transmission apparatus capable of reducing the noise level radiated by the multiplex transmission apparatus.
- first bias means for biasing one of the transmission paths to the power supply side potential
- second biasing means for biasing the other transmission path of the transmission paths to the ground side.
- a plurality of first terminal nodes having two bias means, communication control means for controlling data transmission, respective bias means, and connection means for connecting the communication control means to the transmission path at at least two places, respectively.
- a plurality of second terminal nodes having the communication control means.
- connection means connects the first terminal node to each transmission line in a daisy-chain manner.
- the power supply line is provided along the transmission line.
- the connection means causes the bias means and the communication control means of the first terminal source to: Connect to each transmission line at two or more places without using branch lines, and perform multiplex transmission of data to and from other terminal nodes. For this reason, even if a fault occurs such that one of the transmission lines is disconnected, the transmission line is connected to the biasing means and the communication control means at a plurality of points, so that one-sided transmission and disconnection of the bias can occur. No double failures. In addition, since the power supply line runs along the transmission line, the noise level radiated by the multiplex transmission device can be reduced.
- FIG. 1 shows an embodiment of the present invention
- FIG. 1 is a block diagram showing a first embodiment of the configuration of a terminal node according to the present invention
- FIG. 3 is a block diagram showing a second embodiment of the configuration of the terminal node according to the present invention
- FIG. 3 is a block diagram showing a third embodiment of the configuration of the terminal node according to the present invention
- FIG. 5 is a block diagram showing a fifth embodiment of the configuration of the terminal node according to the present invention
- FIG. 6 is a block diagram showing a fifth embodiment of the configuration of the terminal node according to the present invention
- FIG. 7 is a block diagram showing a sixth embodiment of the terminal node according to the present invention
- FIG. 8 is a block diagram showing a seventh embodiment of the terminal node according to the present invention.
- FIG. 9 is a diagram showing a first embodiment of the configuration of the transmission apparatus.
- FIG. 9 is a diagram showing a second embodiment of the configuration of the multiplex transmission apparatus according to the present invention.
- FIG. 3 is a diagram showing a third embodiment of the configuration of the multiplex transmission apparatus according to the present invention, and
- FIG. 11 is a fourth embodiment of the configuration of the multiplex transmission apparatus according to the present invention.
- FIG. 12 is a diagram showing an embodiment, and FIG. 12 is a diagram showing a fifth embodiment of the configuration of the multiplex transmission apparatus according to the present invention.
- connection method of the transmission path may be, for example, a loop type or a bus type.
- the components of the device are almost the same for the loop type and the bus type. Therefore, in this embodiment, a case of a loop type will be described as a representative.
- a terminal node 40 having a bias device includes a first bias device 41, a second bias device 42, a communication control device 43, and connection terminals 44 to 47. It is composed of
- the first bias device 41 is connected to the first transmission line 10 and biases the first transmission line 10 to a power supply side potential.
- the second bias device 42 is connected to the second transmission line 11 and biases the second transmission line 11 to the ground side potential.
- the communication control device 43 is connected to each of the transmission lines 10 and 11 and controls the data communication by changing the voltage of each of the transmission lines 10 and 11 according to the dominant or passive state.
- Terminals 44 and 45 connect the first bias device 41 and the communication control device 43 to the first transmission line 10 at two places. It is to continue.
- the connection terminals 46 and 47 are for connecting the second bias device 4 and the communication control device 43 to the second transmission line 11 at two points.
- the transmission lines 10 and 11 and the terminal node 40 are connected by a daisy-chain connection.
- a terminal node 50 having no bias device is provided with a communication control device 51 having the same function as the communication control device 43 shown in FIG. 1, and connection terminals 52 to 5. And 5.
- connection terminals 52 and 53 are for connecting the communication control device 51 to the first transmission line 10 at two points.
- the connection terminals 54 and 55 are for connecting the communication control device 51 to the second transmission line 11 at two places.
- the transmission lines 10 and 11 and the terminal node 50 are connected by a daisy-chain connection, and the transmission lines 10 and 11 are respectively connected in a loop.
- connection terminals shown in FIGS. 1 and 2 can be provided at two or more places on the same transmission line.
- a terminal node having a bias device includes a first bias device 61, a second bias device 62, and a data terminal.
- the communication control devices 63 which control the communication of the communication lines, are connected independently to the transmission lines 10 and 11 via the branch lines 16 to 19, respectively.
- the first bias device 61 biases the first transmission line 10 to the power supply side potential
- the second bias device 62 applies the second transmission line 11 to the second transmission line 11. Bias to the ground side potential.
- the wiring between each device in the terminal node and the connection terminal can be realized by, for example, a printed board or the like.
- FIGS. 4 and 5 show another embodiment of the terminal node 40
- FIGS. 6 and 7 are block diagrams showing another embodiment of the terminal node 50. .
- this transmission line is connected within the terminal nodes 40 and 50 via connectors 48 and 56.
- the terminal nodes 40 and 50 are connected in a daisy chain to the terminal nodes 40 and 50.
- the terminal nodes 40 and 50 have four connection terminals 44 a to 47 a and 52 a to
- the transmission lines 10 and 11 and the terminal nodes 40 and 50 are connected in a daisy-chain manner in the connectors 48 and 56. I have. Therefore, in these embodiments, simultaneous disconnection of the transmission lines 10 and 11 can be prevented even if the connectors 48 and 56 are disconnected from the terminal nodes 40 and 50.
- each terminal node 40 having a bias device (see FIG. 1) and each terminal node 50 having no bias device (see FIG. 2) have two transmissions.
- the daisy chain is connected to the roads 10 and 11 respectively. That is, in each terminal node 40 having a bias device, both the bias devices 41 and 42 and the communication control device 43 are connected to the transmission lines 10 and 11 via the connection terminals 44 to 47. Are connected in two places at each location. Further, in each terminal node 50 having no bias device, the communication control device 51 is connected to the transmission lines 10 and 11 via the connection terminals 52 to 55, respectively. Connected.
- one of the transmission lines near the terminal node 40 having the bias device is disconnected, for example, a folder in which the position of the X mark of the transmission line 10 shown in FIG. 8 is disconnected. Even if a drop occurs, there is no branch line, and the first bias device 41 of the terminal node 40 is connected to the transmission line 10 via the connection terminal 44. As a result, in this embodiment, there is no out-of-bias or one-sided transmission, and the terminal node 40 can perform data transmission favorably with each of the other terminal nodes in the device.
- the transmission line is formed in a daisy-chain connection with a loop type, and the number of branch lines is reduced, so that a reflected wave is not easily generated in the transmission waveform.
- the transmission line is directly connected to the terminal node by a daisy-chain connection method without using a joint connector, so that the number of connection points is four, and the conventional connection method (connection point However, the number can be reduced compared to 8 places).
- the transmission lines are connected in a loop type, even if only one node 40 having a bias device exists in the multiplex transmission device, the transmission When the road is broken, double faults such as one-sided transmission and de-biasing can occur at the same time.
- a bias device is provided as shown in the second embodiment in FIG. 9 to prevent a double failure from occurring when the transmission path is disconnected. It is necessary to provide two or more terminal nodes 40 in the multiplex transmission apparatus, and to arrange the terminal nodes 40 at both ends of the transmission path. The same applies to the case where the loop type multiplex transmission apparatus of the third to fifth embodiments described below is applied to a bus type. As a result, even if a disconnection occurs in any part of the transmission line, it is possible to prevent a double failure in which one-sided transmission and bias release occur simultaneously.
- connection method other than the daisy-chain connection may be used, for example, a conventional connection method via a branch line may be used.
- FIG. 10 shows the structure of a multiplex transmission apparatus according to the present invention.
- FIG. 9 is a diagram showing a third embodiment of the present invention.
- each terminal node 30 without a bias device consist of two transmission lines 10 and 11 and branch lines 16 to 19 and Each terminal node 50 (see FIG. 2) connected via branch lines 14 and 15 and having no bias device is connected in a daisy-chain manner to two transmission lines 10 and 11 respectively. ing.
- both the bias devices 61 and 62 and the communication control device 63 are separately and independently transmitted via the connection terminals 64 to 67, respectively. It is connected to roads 10 and 11.
- the third embodiment even if a fault occurs in which one of the branch lines of the terminal node 60 having the bias device breaks, the double failure is eliminated, and the terminal node 60 is connected inside the device. Data transmission with other terminal nodes.
- the bias device is provided in each terminal node and connected to each transmission path, but the present invention is not limited to this.
- the first bias devices 71 and 81 for biasing the first transmission line 10 to the power supply side potential and the second transmission line 11 are grounded.
- the second biasing devices 72 and 82 for biasing to the bias side potential are independent of each other, It is also possible to provide nodes 70,80.
- the nodes 70 and 80 can be connected to the two transmission lines 10 and 11 via daisy-chain connections or branch lines, respectively.
- the power supply lines 91, 92 for supplying power from the power supply 90 to the terminal nodes 30, 40, 50 are transmitted through this transmission line. It is also possible to wire along routes 10 and 11. In this case, it is possible to reduce the number of wires and to reduce the current loop between the transmission line and the power supply line. Thus, in this embodiment, the noise level radiated from the multiplex transmission device can be reduced, and the influence on other electronic devices can be reduced.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Dc Digital Transmission (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69333764T DE69333764T2 (de) | 1992-09-22 | 1993-09-17 | Multiplexübertragungseinrichtung |
US08/244,235 US5450393A (en) | 1992-09-22 | 1993-09-17 | Multiplex transmission apparatus |
EP93919680A EP0618702B1 (en) | 1992-09-22 | 1993-09-17 | Multiplex transmission apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4/252564 | 1992-09-22 | ||
JP25256492 | 1992-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994007317A1 true WO1994007317A1 (fr) | 1994-03-31 |
Family
ID=17239133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/001338 WO1994007317A1 (fr) | 1992-09-22 | 1993-09-17 | Appareil pour transmissions multiples |
Country Status (4)
Country | Link |
---|---|
US (1) | US5450393A (ja) |
EP (1) | EP0618702B1 (ja) |
DE (1) | DE69333764T2 (ja) |
WO (1) | WO1994007317A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017169756A1 (ja) * | 2016-03-29 | 2017-10-05 | ソニー株式会社 | 電子機器および駆動方法、並びにスレーブ素子 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6480510B1 (en) | 1998-07-28 | 2002-11-12 | Serconet Ltd. | Local area network of serial intelligent cells |
US6956826B1 (en) | 1999-07-07 | 2005-10-18 | Serconet Ltd. | Local area network for distributing data communication, sensing and control signals |
US6549616B1 (en) | 2000-03-20 | 2003-04-15 | Serconet Ltd. | Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets |
US6961303B1 (en) | 2000-09-21 | 2005-11-01 | Serconet Ltd. | Telephone communication system and method over local area network wiring |
IL152824A (en) | 2002-11-13 | 2012-05-31 | Mosaid Technologies Inc | A socket that can be connected to and the network that uses it |
IL159838A0 (en) | 2004-01-13 | 2004-06-20 | Yehuda Binder | Information device |
JP7086117B2 (ja) | 2017-03-17 | 2022-06-17 | チャベス デ オリベイラ、エニオ | 腫大した血管構造を処置するための装置、システム、及び方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4994243A (ja) * | 1972-10-11 | 1974-09-06 | ||
JPS55107361A (en) * | 1979-02-09 | 1980-08-18 | Fujitsu Ltd | Control system for power supply |
JPS586638A (ja) * | 1981-07-04 | 1983-01-14 | Omron Tateisi Electronics Co | デ−タ伝送装置 |
JPS61253943A (ja) * | 1985-05-07 | 1986-11-11 | Mitsubishi Electric Corp | デ−タ伝送システム |
JPS62293845A (ja) * | 1986-06-13 | 1987-12-21 | Nec Corp | ブランチ系ロ−カルエリアネツトワ−クの分配器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2713436B2 (ja) * | 1988-10-21 | 1998-02-16 | 古河電気工業株式会社 | 多重伝送路のバイアス回路設置方式 |
US4937811A (en) * | 1989-02-24 | 1990-06-26 | General Instrument Corporation | Communication network |
US5200743A (en) * | 1989-09-01 | 1993-04-06 | Bently Nevada | Multiple remote sensor system for real time analog sensing and differential cummunication |
US5289365A (en) * | 1991-12-23 | 1994-02-22 | Donnelly Corporation | Modular network control system |
-
1993
- 1993-09-17 EP EP93919680A patent/EP0618702B1/en not_active Expired - Lifetime
- 1993-09-17 DE DE69333764T patent/DE69333764T2/de not_active Expired - Lifetime
- 1993-09-17 WO PCT/JP1993/001338 patent/WO1994007317A1/ja active IP Right Grant
- 1993-09-17 US US08/244,235 patent/US5450393A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4994243A (ja) * | 1972-10-11 | 1974-09-06 | ||
JPS55107361A (en) * | 1979-02-09 | 1980-08-18 | Fujitsu Ltd | Control system for power supply |
JPS586638A (ja) * | 1981-07-04 | 1983-01-14 | Omron Tateisi Electronics Co | デ−タ伝送装置 |
JPS61253943A (ja) * | 1985-05-07 | 1986-11-11 | Mitsubishi Electric Corp | デ−タ伝送システム |
JPS62293845A (ja) * | 1986-06-13 | 1987-12-21 | Nec Corp | ブランチ系ロ−カルエリアネツトワ−クの分配器 |
Non-Patent Citations (1)
Title |
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See also references of EP0618702A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017169756A1 (ja) * | 2016-03-29 | 2017-10-05 | ソニー株式会社 | 電子機器および駆動方法、並びにスレーブ素子 |
US10845863B2 (en) | 2016-03-29 | 2020-11-24 | Sony Corporation | Electronic device, driving method, and slave element to obtain sufficient transmission characteristics with low power consumption |
Also Published As
Publication number | Publication date |
---|---|
US5450393A (en) | 1995-09-12 |
EP0618702B1 (en) | 2005-02-23 |
DE69333764T2 (de) | 2006-03-23 |
DE69333764D1 (de) | 2005-03-31 |
EP0618702A1 (en) | 1994-10-05 |
EP0618702A4 (en) | 2003-02-12 |
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