JPS61210741A - Information communicating equipment - Google Patents

Abstract

PURPOSE:To execute information transmission in accordance with a condition by adding a transmitting capacity means to allot the channel for transmission in an information communicating equipment having plural transmission lines to communicate various pieces of information such as a computer, a television device and a telephone set and to unify the control the means for controlling the allotment of the transmitting capacity. CONSTITUTION:A transmitting capacity control device 6 connected to respective transmission line control devices 3 monitors unitedly the transmission line operating condition from respective transmission line control devices 3, and automatically or by the indication of an operator, the allotting control of the transmission capacity is executed to respective transmission line control devices 3. When the transmission capacity to transmit the information by an information communicating equipment as a whole is secured, the transmission channel is allotted by the transmission line control device 3 and the transmitting capacity control device 6. When a part of the transmission line is damaged and special information, for example, the allotment of the transmitting capacity for video information is little, the transmission capacity control device 6 changes automatically or by the indication of the operator the allotment of the existing transmission capacity.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a system in which a plurality of information devices that input and output various types of information, such as computers, television sets, and telephones, are connected to a common transmission path. communication between.

This relates to an information transmission device that performs multiplexing through a common transmission path.

[Conventional technology]

5 and 6 are diagrams for explaining the configuration of a conventional information transmission device that multiplexes and transmits data, video, audio signals, etc.

In Figure 5, (1) is information equipment that inputs and outputs data, video, and audio signals such as computers, television equipment, and telephones installed within a certain range, and (2) is a loop-shaped device that transmits information. A plurality of transmission lines have been installed, (3) a transmission line controller that controls information transmission on each transmission line (2), and (4)
sends information from information equipment (1) to transmission path (2),
A station serving as an interface for transferring information from the transmission line (2) to the information device (1), (5) a branching section for connecting the transmission line (2) and station (4), and (7) a branching section for connecting the transmission line (2) and station (4). Multiple transmission lines (2), transmission line controller (3)
, a station (4), and a branch section (5).

Each transmission line (2) is controlled and managed by a respective transmission line controller (3) and is connected to a station (4) via a branch section (5).

In FIG. 6, (8) is a transmission control circuit that controls transmission timing on a transmission path, and (9) is a channel control circuit that controls a transmission channel for transmitting information.

(3) is a transmission path controller composed of a transmission control circuit (81) and a transmission channel control circuit (9).

First, a method of transmitting information in a conventional information transmitting device will be explained.

In FIG. 5, information on information equipment (1) is sent from a station (4) via a branch section (5) onto a transmission line (2), and each branch section transmits information on a transmission line (2). It monitors various types of information being transmitted, captures information addressed to connected stations, and transfers it to station (4).

For information transmission, a transmission path controller (3) allocates a channel for information transmission, and the station (4) and branching section (5) transmit and receive information using the transmission channel.

The transmission path controller (3) in FIG. 5 generates a transmission frame as shown in FIG. 7 for transmitting information on the transmission path (2) laid in a loop, and controls its timing.

FIG. 7 is a diagram showing an example of an information transmission frame in a conventional information transmission device.

In FIG. 7, G is a frame header indicating the beginning of a transmission frame circulating on a transmission path at a constant period, (to) is a data field for transmitting computer data, etc.
1 is a video field for transmitting a digitized video signal, 2 is an audio field for transmitting a digitized audio signal, (161 is a plurality of data fields, a video field (to), an audio field) field (transmission frame composed of 4G).

As shown in FIG. 7, the frame ladder 0D is connected to the transmission frame (synchronization for detecting the beginning of IO) (turf 0η) and the transmission path controller (3) in FIG. 5 for information transmission.
) and the branch unit (5) or station (4).

The data is the destination address (01) and the source address (2).
The digitized video signal is transmitted in units of data fields (to) consisting of the data section t2z with 2 attached, and is divided into the video number (24) and the video data section (
Video field ta! consisting of two pieces! It is transmitted in units of j. Further, the digitized audio signal is transmitted in units of slots C2e, which are obtained by further subdividing the audio field (41).

The transmission channel control circuit (9) of the transmission line controller (3) in FIG. Perform field assignments. In addition, the transmission control circuit (
8) performs timing control of a transmission frame composed of such transmission fields.

Hereinafter, an example of an information transmission procedure in a conventional information transmission device will be explained with reference to FIGS. 4 to 7.

FIG. 4 is a diagram for explaining the procedure for transmitting information at stations and branch sections to which various information devices that transmit and receive information are connected.

In Figure 4, (2) is the transmission line, (2n is the transmission line (
This is a bypass switch that performs branching in step 2) and bypasses the branching function as necessary. (2 barrels are the receiving circuits that receive information, the wires are the transmitting circuits that send the information onto the transmission path (2), 00 is the transmission/reception control circuit for controlling the timing of sending and receiving information, and 011 is the interface with the station. Nasu station connection circuit, (
4) is a branch section consisting of a bypass switch (2η), a receiving circuit (to), a transmitting circuit (to 2), a transmission/reception control circuit (to), and a station connection circuit +(υ).

G'! G3) is a multiplex transmission line connection control circuit that is connected to the branch part (5) of a plurality of transmission lines (2) and performs connection control for the multiplexed transmission lines; A communication control circuit (4) for communicating with the station is a station composed of a multiple transmission line connection control circuit and a communication control circuit (3i).

(1) is an information device that inputs and outputs data, video, and audio signals, and Oo, 01, and (to) are data, respectively.
This is an input/output device for video and audio signals.

In FIG. 4, an information device (11) that has a request to transmit or receive information makes a transmission/reception request to the communication control circuit 0 of station (4).The communication control circuit 0 of station (4) According to the transmission line number set according to the priority set in advance in the line connection control circuit C32 or the type of information to be transmitted,
A transmission line controller (5) that selects a branch part (5) of a specific transmission line (2) and manages that transmission line using the field of transmission control information 0υ in the transmission frame tte shown in FIG. 3) Send a transmission/reception request to.

The transmission channel control circuit (9) of the transmission line controller (3) in FIG.
), the data field (2) is stored in the transmission frame structure as shown in FIG.

Video field 01. Or the audio field (
41, and the result is notified to the station (4) that made the transmission/reception request as a transmission frame (transmission control information (1'J) in 161).

In the case of audio signal transmission, the transmission path controller (3).

Not only the voice transmission channel +15) but also the slot 00 to be used within the transmission channel αυ is specified.

The branch unit (5) to which the station (4) that made the transmission/reception request is connected is connected to the station (4)
The destination transmission control information 0 barrel is received and transferred to station (4).

The station (4), which has been notified of the transmission field for transmitting information, sends the information of the information device (1) to the destination address (2) as shown in FIG. 7 when transmitting data.
υ, the source address (2z), and the data field □□□ consisting of the data field are reconfigured into a message form as a transmission unit, and sent out on the transmission path via the 9-branch unit (5).

In the case of video signal transmission, the video field 0I consists of the video number Q41 and the video data section 12.
A message to be sent is created using the unit of transmission.
) on the transmission path.

In the case of an audio signal, the digitized audio signal is sent out onto the transmission line via the branch unit (5) using designated slots (20) in the audio field (41) as a transmission unit.

Conversely, when receiving data, station (4
) notifies the transmission field of the information to be received to the transmission/reception control circuit (branch) via the station connection circuit 01) of the 2nd branch (5), and sends the transmission field of the information to be received to the transmission/reception control circuit (branch) of the 9th branch (5).
) monitors each transmission field within the transmission frame 00 circulating around the loop-shaped transmission path (2) at a constant period,
Information in the data field (to) having the destination address cLD indicating the connected station (4) is extracted from the transmission path (2) and transferred to the station (4).

When receiving a video signal, as in the case of data, each transmission field on the transmission path is monitored, and the information of the video field C (I) having the video number 04) to be received is extracted from the transmission path (2). Transfer it to the station (4).In addition, in the case of an audio signal, access the slot (Oi) in the audio field 4 instructed by the transmission line controller (3), take out the necessary audio information, and transfer it to the station (4).
).

The station (4) that receives data, video or audio signal information from the branch (5) converts the respective information into an appropriate format and transfers it to the information equipment (1).

[Problem that the invention seeks to solve]

In the above-mentioned information transmission equipment, the transmission capacity for transmitting information such as data, video, audio signals, etc. on each transmission path is fixed, so there is a possibility that a part of the transmission path may be damaged or
When the amount of transmission of specific information increases and a failure occurs such as a lack of transmission capacity for the transmission of that information, the information transmission capacity of the transmission path where the failure occurs stops or decreases. The intended information cannot be transmitted.

In addition, since each transmission path operates independently, the type of information to be transmitted can be set for each transmission path in order to effectively utilize the transmission performance of an information transmission device consisting of multiple transmission paths. If it is.

There is a problem in that each station needs to select a transmission path and a transmission path controller for making a transmission request depending on the type of information to be transmitted.

This invention was made to solve this problem, and it comprehensively monitors the operating status of each transmission path, and if the information transmission ability of a particular transmission path stops or decreases, other transmission It enables the transmission of specific information by changing the distribution of transmission capacity on the line, and comprehensively manages each transmission line controller.

For requests to send and receive information from each station.

The purpose of this invention is to allocate the most appropriate transmission paths and channels, not just for a single transmission path, but for the entire information transmission device that is composed of a plurality of transmission paths.

[Means for solving problems]

The information transmission device according to the present invention includes a transmission capacity controller for intensively monitoring the information transmission status on each transmission path and controlling the most effective allocation of the transmission capacity of the entire information transmission device as necessary. is installed and connected to each transmission line controller.

Further, in an information transmission device according to another aspect of the present invention, in order to improve reliability against damage to the transmission path and each device constituting the information transmission device, each transmission path controller is physically located within the information transmission device. It is installed in separate locations and has two communication functions added so that the transmission capacity controller and the two distributed transmission line controllers can communicate with each other via the transmission line.

Furthermore, an information transmission device according to another invention is an information transmission device in which a plurality of transmission paths are accommodated and installed in one cable, and each transmission path controller and a transmission capacity controller are integrated. This is a new equipment controller, and the connections between each transmission line control function and transmission capacity control function are simplified.

[Effect]

In this invention, the transmission capacity controller integrally monitors the operating status of the transmission lines by communicating with the transmission line controllers that respectively manage the plurality of transmission lines.

In addition to controlling the distribution of transmission capacity between transmission lines as necessary, it also allocates transmission channels as an entire information transmission device that integrates multiple transmission lines, and transmits information that can respond to changing conditions. .

〔Example〕

Hereinafter, the operation of the information transmission device according to the present invention will be explained with reference to FIGS. 1 to 4.

FIG. 1 is a diagram showing an embodiment of the present invention.

(1) to (5) indicate the same or equivalent parts as those of the conventional device described above.

(6) is a transmission capacity controller that is connected to each transmission line controller (3) and performs transmission capacity control between transmission lines; (7) is a transmission capacity controller that is connected to each transmission line controller (3); ),station(
4).

This is an information transmission device composed of a branching section (5) and a transmission capacity controller (6).

FIG. 2 is a diagram for explaining the connection and configuration of each transmission line controller (3) and transmission capacity controller (6) in FIG. (9) is a transmission channel control circuit that controls a transmission channel for transmitting information;

aO+ is a transmission capacity controller connection circuit for connecting to a transmission capacity controller, (3) is a transmission control circuit (8 (, transmission channel control circuit (9) and transmission capacity controller connection circuit (1o)
This is a transmission line controller consisting of: 0υ is a transmission line controller connection circuit that forms an interface for connecting the transmission capacity controller with each transmission line controller (3), (12 is a transmission capacity for controlling the distribution of transmission capacity for the entire information transmission device) The control circuit 03) is a control information input/output unit through which an operator monitors the operating status of each transmission line according to the situation and inputs transmission capacity distribution control information.

(6) is a transmission capacity controller composed of a transmission line controller connection circuit a1), a transmission capacity iL: control circuit (12), and a control information input/output section (131).

First, a method for transmitting information in an information transmitting device according to the present invention will be explained.

In Fig. 1, information from information equipment (11) is sent from a station (4) via a branch section (5) onto a transmission line (2), and each branch section transmits information on a transmission line (2). It monitors various types of information sent to it, captures information addressed to connected stations, and transfers it to station (4).

To transmit information, the station (4) first requests the transmission line controller (3) to send or receive information, and the transmission line controller (3) establishes a transmission channel for transmitting the information. Go ahead, station (4) and branch (5)
) sends and receives information through its transmission channel.

The transmission capacity controller (6) integrally monitors the operation status of the transmission line from each transmission line controller (3), and automatically or according to an operator's instruction, Controls the distribution of transmission capacity.

The transmission path controller (3) in FIG. 1 generates a transmission frame as shown in FIG. 3 for transmitting information on the transmission path (2) laid in a loop, and controls its timing.

FIG. 3 is a diagram showing an example of an information transmission frame in the information transmission device according to the present invention.

An example of a transmission frame configuration is shown when data, video, and audio signals are multiplexed and transmitted.

In FIG. 3, (14i is a frame header indicating the beginning of a transmission frame that circulates on a transmission path at a constant cycle,
(l is a transmission channel commonly used for the transmission of data, video and audio-coding, and Gel is a transmission frame consisting of a frame header (14) and n transmission channels (Im). As shown in Figure 3, the header 041 contains a synchronization pattern (lη) for detecting the beginning of a transmission frame (1G), indicating whether each transmission channel 0 is used for transmitting data, video, or audio signals, or is in an unused state. Channel control status (Il'O and transmission/reception request) indicating whether

The transmission channel allocation is made up of various fields of the transmission control information 04) used for transmitting information such as. Each transmission channel (19 starts with a channel header (20),
For each type of information to be transmitted in the remaining area, the format to be used is set and the information is transmitted.

For data transmission, a channel format consisting of a channel header eυ, a destination address (211), a source address (22+), and a data section is used.

When transmitting digitized video signals.

In addition to channel header ■, video number t241. A channel format consisting of a video data section (2) is used.Also, when transmitting audio, a slot (which is a unit of transmission of an audio signal in which parts other than the channel header CI of the transmission channel αS to be used are digitized) is used. Divide into 20 parts and use.

An example of an information transmission procedure in the information transmission apparatus according to the present invention will be explained below with reference to FIGS. 1 to 4.

FIG. 4 is a diagram for explaining the procedure for transmitting information at stations and branch sections to which various information devices that transmit and receive information are connected.

In Figure 4, (2) is the transmission line, and 0η is the transmission line [2]
This is a bypass switch that performs branching and bypasses the branching function as necessary. C281 is a receiving circuit that receives information, Go is a transmitting circuit that sends information onto the transmission path (2), 00 is a transmission/reception control circuit that controls the timing of transmitting and receiving information, and 0υ is an interface with the station. Station connection circuit, (4)
is the bypass switch (2η, receiving circuit Q8, transmitting circuit 4, transmitting/receiving control circuit (to) and station connection circuit l3
This is a branching section consisting of 1).

03 is connected to a branch part (5) of a plurality of transmission lines (2),
A multiplex transmission line connection control circuit that controls connections to multiplexed transmission lines; (g) a communication control circuit for communicating with other stations using the transmission line (2); and (4) a multiplex transmission line connection. Control circuit 03. This station consists of a communication control circuit (c) and a communication control circuit (c).

(1) is an information device that inputs and outputs data, video, and audio signals, and C341, C351, and (to) are input and output devices that input and output data, video, and audio signals, respectively.

In FIG. 4, the information device fl1 that has a request to transmit or receive information makes a transmission/reception request to the communication control circuit 0 of station (4), and the communication control circuit (to) of station (4) responds to the request. Create a send/receive request for the information.

The transmission/reception request is made by selecting the branch path (5) of the transmission path (2) to be used according to a preset priority in the multiplex transmission path connection control circuit 02), and sending the transmission frame (transmission in Ie) shown in FIG. Using the field of control information 0 seconds, a transmission/reception request is sent to the transmission line controller (3) that manages the transmission line.

The transmission channel control circuit (9) of the transmission line controller (3) in FIG.
) According to the transmission capacity allocation stored in ), the unused transmission channels are set to 0.

It is assigned as a transmission channel for a video or audio signal, and the result is displayed in the transmission frame in Figure 3 (frame header in 161 (channel control status in 14)
It is also notified to the station (4) that made the transmission/reception request as transmission control information θ.

In the case of audio signal transmission, the transmission path controller (3).

It instructs not only the audio transmission channel 09 but also the slot C161 to be used within the transmission channel α9.

The branch unit (5) to which the station (4) that made the transmission request is connected receives the transmission control information α1 addressed to the connected station (4) and transfers it to the station (4).

If the transmission capacity for the requested information is not secured on the transmission path (2) managed by the transmission path controller (3) that received the transmission/reception request, the transmission path controller (3)

A request to secure the transmission capacity is made to the transmission capacity controller (6) via the transmission capacity controller connection circuit atn.

The transmission capacity controller (6), which has received a request to secure transmission capacity via the transmission line controller connection circuit aυ, investigates the allocation status of transmission capacity on other transmission lines, which is known in the transmission capacity control circuit α2. However, if the transmission capacity for the requested information is secured on another transmission path, the transmission from the station (4) to the transmission line controller (3) via the transmission line controller connection circuit 0υ. Instructs transmission channel allocation for transmission/reception requests.

The transmission line controller (3), which has received an instruction to allocate a transmission channel for information transmission from the transmission control information (6), sends the station (4) that issued the transmission/reception request the transmission path to which information should be transmitted/received, The number of transmission channel α9 is notified as transmission control information 09.

In the case of data transmission, the station (4) that has been notified of the transmission channel for transmitting information uses the destination address C7l+ and the source address (22) as shown in FIG.
and a data transmission channel 09 consisting of a data section.
When creating a message using Q4 as a transmission unit and transmitting a video signal, create a message using a video transmission channel (1j as a transmission unit) consisting of a video number Q4 and a video data part.

It is sent out onto the transmission path via the branch section (5).

In the case of audio signals, digitized audio information is created using slots (26) as transmission units, and the information is sent out onto the transmission path (2) via the branching section (5).

Conversely, when receiving data, station (4
) notifies the transmission channel (I9) of the information to be received to the transmission/reception control circuit (to) of the 2nd branch (5) via the station connection circuit (31+) of the 2nd branch (5). monitors each transmission channel of the transmission frame 0θ circulating around the loop-shaped transmission line at a constant period.

The data to which 0 is added as the destination address indicating the connected station (4) is taken out from the transmission path (2) and transferred to the station (4).

When receiving video signals, monitor each transmission channel (country) where the data is being transmitted as well.

The video information with the video number (24) to be received is taken from the transmission line (2) and transferred to the station (4).

In the case of an audio signal, the slot (a) in the audio field music instructed by the transmission path controller (3) is accessed, necessary audio information is extracted, and the information is transferred to the station (4).

The station (4) that receives data, video, or audio signal information from the branch (5) converts each piece of information into an appropriate format and transmits it to each information device (1).

As mentioned above, when the transmission capacity for transmitting information is secured for the entire information transmission device composed of multiple transmission paths, the transmission path controller (3) and the transmission capacity controller (6
) to allocate transmission channels.

Part of the transmission line may be damaged or the allocation of transmission capacity for 2% constant information, such as video information, may be reduced.

When there is no transmission channel in the device that should be allocated to a newly generated video information transmission/reception request,
The transmission capacity controller (6) changes the existing transmission capacity allocation automatically or according to an operator's instructions.

When priorities are set in advance for each type of information, or when there is sufficient transmission capacity for information other than the information requested for transmission/reception.

The transmission capacity controller (6) automatically performs transmission capacity redistribution control.

If a priority has not been set for each type of information in advance, or if there is not enough transmission capacity for information other than the information requested for transmission/reception, the transmission capacity controller (
6) uses the control information input/output unit Oj to notify the operator of the situation and requests input of control information regarding redistribution of transmission capacity.

As described above, the transmission capacity controller (6) automatically or according to an operator's instruction allows the transmission capacity used for transmitting low-priority information to be used for transmitting high-priority information. Therefore, an instruction is given to the relevant transmission line controller (3) to redistribute the transmission capacity.

The transmission line controller (6) receives instructions from the transmission capacity controller (6).
In 3), the attributes of each transmission channel α9 indicated by the channel control status α mark in the transmission frame aQ are controlled to change it to a transmission channel for the requested information, and the transmission/reception request source station (4) Notify the newly secured transmission channel number and transmission path number.

The station (4) transmits information using the transmission channel of the transmission path notified by the transmission path controller (3).

In the above embodiment, each transmission line controller is connected directly to the transmission capacity controller, but the transmission capacity controller is connected to the transmission line via two branches like the station, and the transmission capacity controller is A line controller is a system that adds a communication function to each transmission line controller and transmission capacity controller so that each transmission line can be used for communication. , each transmission path controller can also be installed in a distributed manner to improve the reliability of the transmission system of the information transmission device.

Conversely, in an information transmission device whose purpose is to reduce the number of cables by accommodating multiple transmission paths in one cable, each transmission path controller and transmission capacity controller are By integrating them into a new transmission controller, it is possible to further simplify the connection between each transmission path control function and transmission capacity control function.

[Effects of the Invention] As explained above, the present invention integrates means for controlling the allocation of information transmission channels and the allocation of transmission capacity in each transmission path in an information transmission device having a plurality of transmission paths. By adding a controlling transmission capacity means, there is an effect that the information transmission apparatus as a whole can transmit information according to the situation.

Another invention of the present invention is to add a function of communicating via the transmission path to the control means of each transmission path and the transmission path amount control means, thereby controlling the control means of each transmission path laid down by different routes. It becomes possible to arrange them in a distributed manner, which has the effect of increasing reliability against failures such as damage to the transmission line control means.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of an information transmission device showing an embodiment of the present invention, FIG. 2 is a configuration diagram of each transmission path controller and transmission capacity controller, and FIG. 3 is a configuration example of an information transmission frame. diagram showing,
Figure 4 is a configuration diagram of the branching section and station, and Figure 5 is
FIG. 6 is a block diagram of a conventional information transmitting device. FIG. 6 is a block diagram of a transmission path controller in the conventional information transmitting device. FIG. 7 is a diagram showing an example of the structure of a transmission frame in the conventional information transmitting device. In the figure, (1) is information equipment, (2) is a transmission path, and (3 is
) is a transmission path controller, (4) is a station, and (6) is a transmission capacity controller. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (5)

[Claims] (1) Information devices that input and output various types of information such as computers, television equipment, telephones, etc. that are distributed within a certain range, such as data, video, and audio, are connected to each other using a common transmission path. , in an information transmission device that multiplexes and transmits multiple pieces of information such as data, video, and audio, allocates multiple independent transmission paths and transmission channels for various types of transmission information, and controls the transmission timing on each transmission path. connected to a transmission line control means and a plurality of transmission line control means,
1. An information transmission device comprising: transmission capacity control means for controlling the distribution of transmission capacity in the entire device constituted by a plurality of transmission paths. (2) The transmission path control means has a transmission control function that controls the transmission timing on the transmission path, and a channel control function and transmission capacity control means that controls the allocation of transmission channels to each transmission information for multiplex transmission of various information. The transmission capacity control means connects to a plurality of transmission line control means and transmits and receives transmission line operation information and control information. means connection function and integrated monitoring of the operating status of each transmission line,
It consists of a transmission capacity control function that controls transmission capacity allocation to each transmission path control means according to the situation, and an information input/output function that allows operators to input and output information regarding transmission capacity as necessary. An information transmission device according to claim (1), characterized in that: (3) The transmission path control means has a transmission control function that controls the transmission timing on the transmission path, a channel control function that controls the allocation of multiplexed transmission of various information, and allocation of transmission channels for each transmission information, and a transmission path. The transmission capacity control means communicates with a plurality of transmission line control means using the transmission line, and controls the operation of the transmission line. Transmission line control means communication function for sending and receiving information and control information, and transmission capacity that integrally monitors the operating status of each transmission line and controls transmission capacity allocation to each transmission line control means according to the situation An information transmission device according to claim (1), comprising a control function and an information input/output function for an operator to input/output information regarding transmission capacity as necessary. . (4) A patent claim characterized in that the transmission line control means and the transmission capacity control means for each transmission line are integrated to form a new transmission control means, and the connection between the transmission line control means and the transmission capacity control means is simplified. The information transmission device according to scope (1). (5) Each transmission path control means has a transmission control function that controls the transmission timing on the transmission path, a channel control function that controls the allocation of transmission channels for each transmission information, and its transmission path for multiplex transmission of various information. and a transmission capacity control function for controlling the transmission capacity of the transmission line managed by the control means, and each transmission line can independently control the transmission capacity. (
1) Information transmission device described in section 1).