JPH0221793A - distributed communication system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to a terminal connected to a signal transmission line in the home,
The present invention relates to a communication system that performs communication via an external telecommunications line.

BACKGROUND ART FIG. 4 shows an example of the configuration of a conventional communication control system. In FIG. 4, 1 is a signal transmission path, which mainly includes a control signal channel for transmitting control signals exchanged between each device connected to the signal transmission path 1, and a control signal channel for transmitting control signals such as audio 1 and image data. and/or one or more information signal channels for transmitting digital information signals. Reference numeral 2 denotes a telecommunications line, which is terminated by a communication network termination section 44a of a communication network termination device material. The communication network termination device 44 accommodates the telecommunications line 2 and has a function of controlling the exchange of information signal channels between the housed telecommunications line 2 and the signal transmission line 1, and a call originating and/or call receiving control function to the telecommunications line 2. It has a communication network termination section 44a that performs the following operations. Further, a communication network termination device 44ij, which accommodates the telecommunication line 2
It has a control unit 44b that manages whether or not the terminal 6 connected to the signal transmission path 1 can use the terminal 6. 54 is a main device, which includes a main control unit 54c that manages the use of the information signal channel of the signal transmission path 1 by the terminal 6, and a terminal attribute management unit that manages the attributes, etc. of the terminal θ connected to the signal transmission path 1. I have ts4b. The terminal 6 has an applied control unit 6b that performs specific application control, and uses the information signal channel of the signal transmission path 1 to exchange information with other terminals and the main device 64 connected to the signal transmission path 1. It also performs information communication with the communication equipment of the external communication network 3 via the communication network termination device 44 and the telecommunication line 2, and each application control unit 6
b has terminal-specific attributes.

The communication network terminal bag @ 44, the main device 54, and the terminal 6 are all communication units 44c and 54a capable of transmitting and receiving common signals using the signal transmission path 10 control signal channel.

6a, and performs communication using commands and the like between each device.

The attributes of each terminal include information such as whether or not to use an information signal channel and which communication device of the external communication network 3 is used for communication. The information is sent from the terminal 6 to the main device 64, stored in the attribute management section of the main device 64, and referenced as needed.

FIG. 6 shows an example of a procedure for making a call from the terminal 6 to the external communication network 3 in the configuration shown in FIG. In FIG. 6, terminal A is an external network communication terminal and communicates with a communication device connected to external communication network 3, and terminal B is an extension communication terminal connected to signal transmission path 1. Communicate between terminals. When the communication network terminal device receives a request to use a telephone communication line (outgoing request) from a terminal, it makes a request for terminal attributes (attribute request) to terminal A, and receives a response from terminal A (attribute response). The terminal refers to the terminal attributes stored in the terminal, and if the terminal is capable of communicating with a communication device connected to an external communication network via a telecommunications line, and the electric line is available, the terminal Permit A to use the telecommunications line (the town that captured the line).

Problems to be Solved by the Invention In the conventional communication system described above, the terminal attributes that are necessary for determining whether or not a telecommunications line can be used in a communication network terminal device and whether or not an information signal channel can be used in a main device are mainly used. It is centrally managed only by the device attribute management section. However, among the terminal attributes, those related to the use of telecommunications lines are also necessary in the communication network terminal equipment.
Every time a terminal attribute is required at a communication network terminal device, a procedure is required to adjust the attributes to the terminal. Adjustment of terminal attributes occurs every time a terminal uses a telecommunications line, and is similarly necessary when there is an incoming call from an external communication network.

Therefore, there are problems in that the time delay until the telecommunication line and the information signal channel are connected becomes large, and the traffic of command communication in the control signal channel of the signal transmission path also increases.

Means for Solving the Problems In order to solve the above-mentioned problems, the distributed communication system of the present invention allows the terminals to simultaneously broadcast attribute responses to attribute requests sent from the main device to the terminals connected to the signal transmission path. It has a configuration in which the attribute information is sent by the communication network terminal device and the main device, respectively, and the necessary attribute information is distributed and managed by each device in advance.

Effect of the Invention The present invention enables the communication network termination device itself to manage terminal attributes unique to the communication network termination device by the above-described means, and it is possible to omit the procedure of adjusting the terminal attributes one by one when necessary. becomes.

Embodiment FIG. 1 shows a configuration diagram of an embodiment of the distributed communication system of the present invention. In FIG. 1, the same parts as in FIG. 4 of the conventional example are given the same numbers.

In FIG. 1, 41d is an attribute management unit of the terminal 6 managed by the communication network termination device 41, which indicates the types of terminals that can use the communication line 2, and the necessity of power supply to the information signal channel of the signal transmission line 1 to be used. It holds information regarding the usage conditions of the telecommunications line 2 when the terminal 6 communicates with the communication device connected to the external communication network 3 via the communication network termination device 41 and the telecommunications line 2, such as the presence or absence of ing.

FIG. 2 is a diagram showing a procedure for transferring each attribute of a terminal connected to a signal transmission path to each of the communication network termination device 41 and the main device 51 in the distributed communication system of the present invention.

The main device 61 sends a command (attribute request) requesting attribute transfer to each terminal connected to the signal transmission path. Terminal A, which has received the attribute request, adds its preset attribute to the attribute response command and transmits it by broadcast. The communication network terminal device 41 and the main device 61 are terminal A
The terminal receives the attribute response command sent from the terminal, extracts the necessary attribute information from the added terminal attributes, and registers it in the attribute management section along with the terminal address. Terminals other than the main device 51 of the communication network terminal device 41 that require attributes similarly register themselves in the attribute management section, and terminals that do not require attributes do not perform any processing. The above procedure makes it possible to transfer the attribute information of the terminal to devices other than the main device.

FIG. 3 shows a procedure for making a call from a terminal to the external communication network 3 in the distributed communication system of the present invention. In FIG. 3, terminal A is an external network communication terminal, which communicates with a communication device connected to the external communication network, and terminal B is an extension communication terminal, which communicates with other terminals connected to signal transmission path 1. Communicate with others. Terminal A requests the device 61 to use an information signal channel of a signal transmission path used for communication (channel request). When the main device 61 receives a channel request from terminal A, it checks the availability status of the information signal channel it manages, and selects the terminal attribute information registered in the attribute management unit that corresponds to the terminal address. Then, it is checked whether the conditions for using the information signal channel defined by the system are met.

If the predetermined conditions are satisfied, the main device 61 notifies the terminal person of permission to use the information signal channel (channel use permission). Next, terminal A sends a request command (call request) to the communication network terminal device 41 to make a call to an external communication network via the telecommunications line. When the communication network termination device 41 receives the outgoing call request, it checks the availability of the telecommunications line to be accommodated, extracts information that corresponds to the address of the terminal from among the terminal attribute information registered in the attribute management section, and
Attributes of the terminal A, such as whether the terminal A is a communication terminal that uses a telecommunications line, whether or not it is necessary to supply power to an information signal channel, and the communication network termination unit of the communication network termination device. Check whether the attributes match.

If the conditions are met, the communication network termination unit issues a command (
transmit a line seizing tone). If the conditions are not met, as in the case of terminal B, the communication network terminating device sends a command to refuse the use of the telecommunications line (line acquisition not possible).

Effects of the Invention According to the distributed communication system of the present invention, it is possible to independently manage the terminal attributes sent from the terminals in a simultaneous broadcast by the communication network terminal device and the main device, can also be imported if necessary. The attributes of the terminal include information regarding the use of the information signal CHV*# managed by the main device, call/input control of the telecommunications line performed by the communication network terminal device, and information regarding the usage conditions of the telecommunications line. There is no need to individually transfer information uniquely required for each of these devices from the terminal. Therefore, in the command communication procedure that the terminal should perform between the terminal and the communication network termination device when responding to an outgoing or incoming call, the attributes should not be transferred from the terminal to the communication network termination device each time. This makes it possible to quickly control the number of outgoing calls and one incoming call. Furthermore, it is possible to reduce the processing load of control related to outgoing calls 9 and incoming calls in the communication network terminal device of the terminal 9.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the distributed communication system of the present invention, FIG. Figure 3 is a diagram showing the procedure for making a call from a terminal to an external communication network in the distributed communication system of the present invention.
Figure 6 is a block diagram of a conventional communication control system, and Figure 6 shows the transmission of data from a terminal to an external communication network in a conventional communication control system. It is a diagram showing a procedure for making a call. 41...Communication network termination means, 41d...
Attribute management unit, 51...Main device, 6...
terminal. Name of agent: Patent attorney Shigetaka Awano and one other person ---Command'

Claims (1)

[Claims] at least one signal transmission path having one or more signal channels; a main device having at least a function of managing the signal transmission path, attributes of the signal transmission path, the signal channel, etc.; and at least one telecommunications line. and a communication network termination section that accommodates the signal transmission line or signal and has at least an exchange control function between the signal and the telecommunications line, and a call origination control function and/or call reception control function between the signal transmission line and the signal transmission line, and the signal transmission line. comprising at least a communication network termination device having a function of receiving predetermined terminal-specific attributes transmitted by simultaneous broadcast from connected terminals and managing information necessary for control at the communication network termination section; A distributed communication system characterized in that terminal attributes necessary for unique control performed by each of a main device and the communication network terminal device are managed in a distributed manner.