JPH022249A - Communication network control method - 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 the Invention The present invention relates to a method for controlling a communication network configured by connecting a plurality of terminals via a connecting device to a system in which a plurality of terminals are connected by a transmission path and communicate with each other. It is something.

Prior Art The prior art will be explained with reference to FIGS. 6 to 8. Fig. 5 shows an example of the configuration of a communication network to which the control method of the present invention is applied, Fig. 6 shows an example of the message structure of a home pass system, which is one of the systems related to the present invention, and Fig. 7 shows a conventional example. FIG. 8 is a diagram showing the address structure of a conventional video telephone.

In the conventional home bus system control method, the '1E statement structure is as shown in Figure 6.
The addresses of the devices on the system connected by the gateway (hereinafter referred to as gateway) are the source subdevice address (hereinafter referred to as SSD, Ato1l)), the destination address subdevice address (hereinafter referred to as DSD), respectively.
(referred to as A) 65° Zaboubanusoune address (hereinafter referred to as S A
62 subbus denunciation address (hereinafter referred to as DA') 63, but it is not possible to specify the original subdevice address of SA' or DA'. I didn't have the means.

In FIG. 5, consider the case where two systems connected by a day l-way are both home path systems. Assume now that the terminal a56 is a TV main phone consisting of a TV and a telephone, and the terminal person 53 is its controller.

At this time, in the conventional home bus system control method using control messages as shown in FIG.
Since the terminal a66 does not have a means to specify the telephone as a subdevice of the terminal a66, the terminal a66 assigns an address Tv8 related to the data link to the TV and the telephone, respectively, as shown in FIG.
2. It was necessary to bring a telephone 83.

Therefore, for example, from the controller (terminal A63) to the TV
If you want to simultaneously control each timer of the and telephone, as shown in FIG. 7, first send a request message B specifying the address of the terminal a66 as DA' to the gateway 55 (71), 56) composes a request message specifying the address of the controller (terminal A33) as SA' and sends it to Tv84 of the TV main telephone terminal a66) (72), and upon receiving it, TM01 starts a timer according to request message B. After making the settings, a response message specifying the controller (terminal A33) as DA' is sent to the gateway 65 (73), and the gateway sends T as SA'.
Response message B specifying the address of V main telephone terminal a56)
is sent to the controller (terminal A63) (74). Similarly, request messages C, c and response messages C, O regarding telephone timer settings are transmitted and received between the controller (terminal A63) and TV main telephone terminal a66) via the gateway 55 (75-78 ).

Problems to be Solved by the Invention As described above, when a device connected to a home bus controls a subdevice of a device connected to another system that does not share a transmission path, the device that has a subdevice on the other system Since it is necessary to have an address related to the data link for each subdevice, there are problems such as the total number of connected devices in the system becomes small and the expandability of devices with subdevices decreases. . In addition, when you want to control multiple subdevices at the same time, you need as many communication sequences as the number of subdevices you want to control, which causes problems such as poor control immediacy and increased traffic on the bus. It had

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in the prior art and to make it possible to specify sub-devices in a system that does not share a transmission line connected by a connecting device.

Means for Solving the Problems In a communication network configured by connecting a plurality of systems using connecting devices, a plurality of terminals are connected by transmission paths and communicate with each other.

In order to control individual subdevices of the terminal, which are composed of multiple subdevice addresses under address card-specific device addresses, from the subdevices of equipment on the system connected by the connection device, The control information is provided as a subheader.

Effect: The above means makes it possible to specify subdevices on the system that do not share the transmission path connected by the connection device, and equipment with subdevices does not need to have an address related to the data link for each subdevice. Effects that increase the total number of connected devices in a system to which devices with subdevices are connected, effects that improve the expandability of devices that have subdevices, effects that improve the immediacy of control of subdevices, and traffic on transmission paths. It has the effect of reducing

Example Embodiments of the present invention will be described using FIGS. 1 to 5.

Figure 1 shows an example of the structure of a sub-device address designation subheader which is an embodiment of the present invention, Figure 2 shows an example of the structure of a message header and subsequent parts using the subheader shown in Figure 1, and The figure shows the communication sequence in this embodiment, FIG. 4 shows the address structure of the TV phone in this embodiment, and FIG.
The figure is a diagram showing an example of the configuration of a communication network to which the antibacterial method of the present invention is applied.

As shown in FIG. 1, the subdevice address specification part by the subheader of this embodiment is the subbus source address (hereinafter SS), which is the original subdevice address of SA'.
1a (referred to as person D'), subbus destination address (hereinafter referred to as DSDA') 14, which is the original subdevice address of person D', and 5SDA'13 and D.
It is composed of a subheader 12 indicating the appearance of SDA'14 and a service group. 5SDA'13 exists only when bit 1 of subheader 12 is specified as O, and DSDA'14 exists only when bit 0 of subheader 12 is specified as 0.

An example of the configuration pattern below the header of the 1π sentence based on this subheader is shown in FIG.

As an application example of this subheader, as in the conventional example,
In the figure, the two systems connected by gateway 55 are both home bus systems, and terminal a56 is T
It is a TV phone consisting of V and 'i [talk, and terminal A53
Consider the case where is the controller. By using the subheader of the present invention, it is possible to specify the subdevice of the video phone (terminal 2L56) from the controller (terminal A33).The address of the video phone (terminal a56) is as shown in FIG. It consists of a device address 41 of the TV phone and its sub-device address TV 42°telephone 43. Therefore controller (terminal '53) 7
)'If you want to set the TV and telephone timers at the same time for TvTE talk (terminal A56), the controller (terminal A33) is set to TM71 as D person'.
The device address 42 of the first episode is specified, and a request message A is sent to the gateway 66 as a compound command, which includes a control command for the subdevice TM01 and the telephone 43 at the same time (31).

The gateway 56 sends a request message a specifying the address of the controller (terminal A63) as SA' to a video telephone (
(32). The TV phone (terminal A66) that received the request message sets each timer for the TV and phone, and then sends it to the controller (terminal Muro 3) as Person D'.
A response message a specifying the address of is sent to the gateway 66 (33).

The gateway 55 uses a TV phone (terminal a56) as SM'.
) is sent to the controller (terminal A33).

As described above, according to this embodiment, by introducing the sub-device addressing subheader into the home bus system, it is possible to access the home bus from the home bus with fewer communication sequences without having to have a separate address for each sub-device. It becomes possible to control subdevices of equipment connected to other systems.

Effects of the Invention As is clear from the above description, the present invention provides a system in which a plurality of terminals are connected by a transmission path and communicate with each other, in a communication network configured by connecting a plurality of terminals by a connecting device, in which addresses are unique. In order to control the individual subdevices of the terminal, which are configured by multiple subdevice addresses under the device address of By providing information for this as a subheader, it is possible to specify subdevices on a system that do not share the transmission path connected by the connecting device, and equipment with subdevices can specify the address related to the link layer for each subdevice. There is no need to have sub-devices, but there are also effects such as increasing the total number of connected devices in the system to which devices with sub-devices are connected, and improving the expandability of machines with sub-devices. This has the effect of improving the immediacy of control and reducing transmission line traffic.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of an example of a sub-device specification subheader according to the present invention, Fig. 2 is an explanatory diagram of an example of the structure after the header of a message using the subheader shown in Fig. 1, and Fig. 3 is an illustration Explanatory diagram of the communication sequence in the embodiment of the present invention, No. 4
The figure shows an address configuration diagram of a T''/'713: address in an embodiment of the present invention, FIG. 5 is a configuration diagram of an example of a communication network to which the present invention is applied, and FIG. 6 shows a home bus in a conventional example of the present invention. FIG. 7 is an explanatory diagram of a communication sequence in a conventional example of the present invention, and FIG. 8 is an address configuration diagram of a TVE talk in a conventional example of the present invention. 12...Sub device Dog addressing buhenda 1
3...SSD λ', 14...DS
D Mu', 31...-Request message, 32...
Request message, 33.A...Response'] [7 sentences 234...
Response message, 41...TV telephone address, 42.
...Tv'z talk sub-device TV sub-device address, 43... TV phone support--1'/<
Sub-device address 751 of chair 'mixed conversation'...
Transmission line, 52...Transmission line, 53...Terminal A, 54...Terminal B, 55...Gateway, 66...Terminal a, 57 ...terminal, 7
1...Request message, 72...Request message, 73
...Response message, 74...Response, ts
Sentence, completion 6...Request 'iu statement, 76...Request message, 77...Response message, 78...Response message, 82...TV address, 83・・・・・・'i
E story address. Name of agent: Patent attorney Toshio Nakao and 1 other person HD
tM'tAsHD HDtHippo'ko, 5HDtδδρA' HDtD, Q'fbaHD HD tD, InaδHO+ Dl;DA 'HDSM
``SumDA'' -rMoep HD tAA'-r ()fi'suδHρt, Sδjigi HDsuM'+ DA' +, SHρtD, SρA'HD
tASA'tDA'+βHDtJ5δDA'SDδ
DA'Figure 3 - Panorama

Claims (2)

[Claims] (1) In a communication network constructed by connecting a system in which multiple terminals are connected by transmission paths and communicate with each other using multiple connecting devices, the terminal address is one unique address (device address) related to the link layer. ) and multiple functional addresses (subdevice addresses) that define layers above the link layer existing under the device address,
A header related to the network layer in a communication message on a subsystem that is passed to a connecting device in order to control the individual subdevice addresses of a terminal on one system from a device on another system connected by the connecting device. A communication network control method, characterized in that information for the control is added to a region. (2) In the header area, include a part that specifies the subdevice of the device on the source subbus, a part that specifies the subdevice of the device on the receiving source subbus, and a part that specifies whether or not the subdevice exists. 2. The communication network control method according to claim 1, wherein the communication network control method is provided as a subheader.