JPH03245636A - Communication connection system - Google Patents
Communication connection systemInfo
- Publication number
- JPH03245636A JPH03245636A JP2043155A JP4315590A JPH03245636A JP H03245636 A JPH03245636 A JP H03245636A JP 2043155 A JP2043155 A JP 2043155A JP 4315590 A JP4315590 A JP 4315590A JP H03245636 A JPH03245636 A JP H03245636A
- Authority
- JP
- Japan
- Prior art keywords
- address
- communication control
- control device
- connection
- communication
- 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
- 238000004891 communication Methods 0.000 title claims abstract description 94
- 230000005540 biological transmission Effects 0.000 claims abstract 2
- 238000012790 confirmation Methods 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 1
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- Small-Scale Networks (AREA)
- Communication Control (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は通信接続方式に関し、特にデータ通信システム
における端末とホストコンピュータとの通信接続方式に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication connection system, and particularly to a communication connection system between a terminal and a host computer in a data communication system.
従来の通信接続方式は、端末側で、最初から実際に通信
を行うホストコンピュータまたは通信制御装置のホスト
アドレスの登録が必要であり、それぞれの端末について
個々にホストアドレスを登録しておく必要があった。そ
して、ホストコンピュータに接続される通信制御装置を
１台として通信制御装置内でのアドレス比較を行わずホ
ストコンピュータ側の通信ソフトウェアでアドレス比較
を行っていた。Conventional communication connection methods require the terminal to register the host address of the host computer or communication control device that will actually communicate from the beginning, and it is necessary to register the host address for each terminal individually. Ta. Then, with only one communication control device connected to the host computer, address comparison is not performed within the communication control device, but is performed by communication software on the host computer side.
上述した従来の通信接続方式は、個々の端末についてそ
れぞれ実際に通信を行うホストコンピュータまたは通信
制御装置のホストアドレスを登録しなければならず、端
末側の通信情報がホストアドレスによりそれぞれ別々の
ものとなり、システム管理上、非常に煩わしくなるとい
う欠点を有している。In the conventional communication connection method described above, it is necessary to register the host address of the host computer or communication control device that actually communicates with each terminal, and the communication information on the terminal side is different depending on the host address. However, it has the disadvantage of being extremely troublesome in terms of system management.
また、従来の通信接続方式はアドレス比較をホストコン
ビエータ側のソフトウェアでしなければ成らず、ホスト
コンピュータの負荷が大キく、１台の通信制御装置で全
ての端末と通信しなければならないので通信能力が通信
制御装置の処理能力に制限されるという欠点を有してい
る。In addition, with conventional communication connection methods, address comparisons must be performed using software on the host combinator side, which places a heavy load on the host computer, and requires a single communication control device to communicate with all terminals. It has the disadvantage that the communication capability is limited by the processing capability of the communication control device.
本発明の通信接続方式は、ホストコンピュータに複数の
通信制御装置が接続されて回線により多スとが付加され
るとともに、送信先アドレスに同報アドレスを指定する
同報通信機能を有し、前記ホストコンピュータに接続さ
れた前記通信制御装置がそれぞれ固有のアドレスを持ち
、前記通信制御装置で送信先アドレスが自局宛または同
報フレームでかつ発信元アドレスが予め前記通信制御装
置内に登録されているデータのみを受信し、前記通信制
御装置内に登録できるアドレス数に制限を有し、前記端
末の一つからの接続要求に対して前記ホストコンピュー
タが接続確認を返すことによって接続が完了する通信接
続方式にあって、同報通信機能を用いて接続要求を送信
する前記端末の接続要求送信手段と、前記接続要求送信
手段を用いて送信された接続要求を受信アドレスをホス
トアドレスとして接続要求受信手段と、前記接続要求受
信手段で受信した接続要求の発信元アドレスが予め受信
した前記通信制御装置内に登録されているかどうかを比
較して発信元アドレスが登録されている接続要求のみを
前記ホストコンピュータに通知アドレスをホストアドレ
スとしてアドレス比較手段と、前記アドレス比較手段に
よって前記ホストコンピュータに通知された接続要求に
対して接続確認を前記通信制御装置に発行する前記ホス
トコンピュータの接続確認発行手段と、前記ホストコン
ピュータから前記通信制御装置に発行された接続確認に
よって前記通信制御装置のアドレスをホストアドレ接続
確認送信手段と、前記通信制御装置から送信された接続
確認を受信する前記端末の接続確認受信手段と、前記接
続確認受信手段によって受信したデータから発信元アド
レスをホストアドレスとして前記端末内に登録する前記
端末のホストアドレス登録手段と、前記ホストアドレス
登録手段によって登録されたホストアドレスを用いて、
前記ホストコンビ二一夕に前記通信制御装置を介して通
信を行う前記端末、前記通信制御装置、前記ホストコン
ビ二一夕のそれぞれの通信手段とを有して構成されてい
る。The communication connection system of the present invention has a plurality of communication control devices connected to a host computer to add multiple paths through lines, and has a broadcast communication function for specifying a broadcast address as a destination address, Each of the communication control devices connected to a host computer has a unique address, and the destination address of the communication control device is addressed to the own station or a broadcast frame, and the source address is registered in advance in the communication control device. communication in which only the data that can be received is received, the number of addresses that can be registered in the communication control device is limited, and the connection is completed when the host computer returns a connection confirmation in response to a connection request from one of the terminals. In the connection method, a connection request sending means of the terminal transmits a connection request using a broadcast communication function, and a connection request is received using a receiving address as a host address for the connection request sent using the connection request sending means. and the connection request receiving means compares whether or not the source address of the connection request received by the connection request receiving means is registered in the received communication control device in advance, and transmits only the connection request for which the source address is registered to the host. address comparison means for using a host address as a notification address to the computer; connection confirmation issuing means for the host computer that issues a connection confirmation to the communication control device in response to a connection request notified to the host computer by the address comparison means; host address connection confirmation sending means for transmitting the address of the communication control device based on a connection confirmation issued from the host computer to the communication control device; and connection confirmation receiving means of the terminal for receiving the connection confirmation sent from the communication control device. and a host address registration means of the terminal that registers a source address as a host address in the terminal from the data received by the connection confirmation reception means, and using the host address registered by the host address registration means,
The communication device includes the terminal that communicates with the host combination via the communication control device, the communication control device, and communication means of each of the host combination.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
形式説明図である。そして、第３図は本実施例の接続要
求のデータ形式説明図であり、第４図は本実施例の接続
確認のデータ形式説明図である。It is a format explanatory diagram. FIG. 3 is an explanatory diagram of a data format of a connection request in this embodiment, and FIG. 4 is an explanatory diagram of a data format of a connection confirmation in this embodiment.
第１図を参照すると、本実施例は、多数の端末１０を回
線で複数の通信接続装置２０に接続し、これらをホスト
コンピュータ３０に接続して構成されている。Referring to FIG. 1, the present embodiment is configured by connecting a large number of terminals 10 to a plurality of communication connection devices 20 via lines, and connecting these to a host computer 30.
そして、端末１０は、接続要求を送信する接続要求送信
手段１１と、接続確認を受信する接続確認受信手段１２
と、接続確認受信手段１２で受信した接続確認から発信
元アドレスをホストアドレスとして端末１０内に登録す
るホストアドレス登録手段１３と、通信制御装置２０を
介してホストコンピュータ３０と通信を行う通信手段１
４とを有している。The terminal 10 includes a connection request sending unit 11 that sends a connection request, and a connection confirmation receiving unit 12 that receives a connection confirmation.
, a host address registration means 13 that registers the source address as a host address in the terminal 10 based on the connection confirmation received by the connection confirmation reception means 12, and a communication means 1 that communicates with the host computer 30 via the communication control device 20.
4.
また、通信制御装置２０は、端末１０からの接続要求を
受信する接続要求受信手段２１と、接続要求受信手段２
１で受信した接続要求がその通信制御装置２０で通信す
る相手かどうかを調べるためにアドレスを比較するアド
レス比較手段２２と、ホストコンビコータ３０の接続確
認発行手段３１から受けた接続確認を送信する接続確認
送信手段２３と、端末１０とホストコンピュータ３０と
の間に入って通信を行う通信手段２４とを有している。The communication control device 20 also includes a connection request receiving unit 21 that receives a connection request from the terminal 10, and a connection request receiving unit 2 that receives a connection request from the terminal 10.
The connection confirmation received from the connection confirmation issuing means 31 of the host combination coater 30 is sent to the address comparison means 22 which compares addresses in order to check whether the connection request received in step 1 corresponds to the communication partner with which the communication control device 20 communicates. It has a connection confirmation transmitting means 23 and a communication means 24 that is inserted between the terminal 10 and the host computer 30 to perform communication.
さらに、ホストコンビ二−タ３０は、アドレス比較手段
２２によって通知された接続要求に対して接続確認を送
信することを通信制御装置２０に対して発行する接続確
認発行手段３１と、通信制御装置２０を介して端末１０
との通信を行う通信手段３２とを有している。Furthermore, the host combinator 30 includes a connection confirmation issuing means 31 that issues to the communication control device 20 a request to send a connection confirmation in response to the connection request notified by the address comparison means 22; terminal 10 via
and communication means 32 for communicating with.
一方、第２図のデータ形式に示すように、通信されるデ
ータ２００は、送信先アドレス２０１と、発信元アドレ
ス２０２と、データ部２０３とから構成されている。On the other hand, as shown in the data format of FIG. 2, the data 200 to be communicated is composed of a destination address 201, a source address 202, and a data section 203.
また、第３図の接続要求のデータ形式に示すように、接
続要求３００は、送信先アドレスとしての同報アドレス
３０１と、発信元アドレスとしての端末アドレス３０２
と、データ部３０３から構成されている。Further, as shown in the data format of the connection request in FIG. 3, the connection request 300 includes a broadcast address 301 as a destination address and a terminal address 302 as a source address.
and a data section 303.
そして、第４図の接続確認のデータ形式に示すように、
接続確認４００は、送信先アドレスとしての端末アドレ
ス４０１と、発信元アドレスとしてのホストアドレス４
０２と、データ部４０３とから構成されている。Then, as shown in the connection confirmation data format in Figure 4,
The connection confirmation 400 includes a terminal address 401 as a destination address and a host address 4 as a source address.
02 and a data section 403.
次に本発明の動作について、図面を参照して説明する。Next, the operation of the present invention will be explained with reference to the drawings.
まず、端末１０において同報通信機能を用いて接続要求
３００を送信する接続要求送信手段１１が起動され、端
末１０から接続要求３００が同報フレームで送信される
。First, the connection request transmitting means 11 that transmits the connection request 300 using the broadcast communication function in the terminal 10 is activated, and the connection request 300 is transmitted from the terminal 10 in a broadcast frame.
そして、端末１０から接続要求送信手段１１を用いて送
信された接続要求３００は、回線上の全ての通信制御装
置２０で接続要求受信手段２１によって受信される。そ
して、接続要求受信手段２１で受信した接続要求３００
は、アドレス比較手段２２によって発信元アドレス２０
２として入っている端末アドレス３０２が予め通信制御
装置２０内に登録されているかどうかを比較し、端末ア
ドレス３０２が登録されている接続要求３００のみをホ
ストコンピュータ３０に通知する。登録されていない端
末アドレス３０２の場合は接続要求３００を破棄してい
る。The connection request 300 transmitted from the terminal 10 using the connection request transmitting means 11 is received by the connection request receiving means 21 in all the communication control devices 20 on the line. Then, the connection request 300 received by the connection request receiving means 21
is the source address 20 by the address comparison means 22.
2 is registered in the communication control device 20 in advance, and only connection requests 300 in which the terminal address 302 is registered are notified to the host computer 30. If the terminal address 302 is not registered, the connection request 300 is discarded.
通信制御装置２０のアドレス比較手段２２によってホス
トコンピュータ３０に通知された接続要求３００に対し
てホストコンビコータ３０は、接続確認発行手段３１に
よって接続確認４００を通信制御装置２０に発行する。In response to the connection request 300 notified to the host computer 30 by the address comparing means 22 of the communication control device 20, the host combicoater 30 issues a connection confirmation 400 to the communication control device 20 by the connection confirmation issuing means 31.
通信制御装置２０は、ホストコンビコータ３０から接続
確認発行手段３１によって発行された接続確認４００を
接続確認送信手段２３によって受け、通信制御装置２０
のアドレスをホストアドレス４０２として接続確認４０
０の発信元アドレス２０２としてうめこみ接続確認４０
０を送信する。The communication control device 20 receives the connection confirmation 400 issued by the connection confirmation issuing means 31 from the host combination coater 30 by the connection confirmation transmitting means 23, and sends it to the communication control device 20.
Confirm connection 40 using the address as host address 402
Umekomi connection confirmation 40 as source address 202 of 0
Send 0.
通信制御装置２０から接続確認送信手段２３によって送
信された接続確認４００は、送信先アドレス２０１とし
て端末アドレス４０１が発信元アドレス２０２として通
信制御装置２０のアドレスであるホストアドレス４０２
がはいっているので接続要求３００を送信した端末１０
で接続確認受信手段１２によって受信される。The connection confirmation 400 sent from the communication control device 20 by the connection confirmation sending means 23 includes a terminal address 401 as the destination address 201 and a host address 402 which is the address of the communication control device 20 as the source address 202.
is entered, so the terminal 10 that sent the connection request 300
is received by the connection confirmation receiving means 12.
端末１０では、接続確認受信手段１２によって受信した
接続確認４００からホストアドレス登録手段１３によっ
て発信元アドレス２０２をホストアドレス４０２として
端末１０内に登録する。In the terminal 10, the host address registration means 13 registers the source address 202 as the host address 402 in the terminal 10 based on the connection confirmation 400 received by the connection confirmation reception means 12.
以後、端末１０は、ホストアドレス登録手段１３によっ
て登録されたホストアドレス４０２を用いてホストコン
ピュータ１０と通信制御装置２０を介して通信を行うこ
とができる。Thereafter, the terminal 10 can communicate with the host computer 10 via the communication control device 20 using the host address 402 registered by the host address registration means 13.
以上説明したように、本発明の通信接続方式は、ホスト
コンピュータに通信制御装置が複数個存在しても端末が
通信を行う相手のアドレスを意識しなくてもよいので端
末の通信情報の管理が容易であり、１台の通信制御装置
で通信できる端末台数に制限があっても複数台を使用し
て大規模な通信システムが構築できるとともに、回線を
流れるデータのアドレス比較を通信制御装置内でできる
のでホストコンピュータの負荷を軽減することができる
上に、複数の通信制御装置を使用できるので通信能力が
通信制御装置１台の処理能力の制限に左右されないとい
う種々の効果を有している。As explained above, in the communication connection method of the present invention, even if a host computer has a plurality of communication control devices, the terminal does not need to be aware of the address of the other party with which it communicates, so the communication information of the terminal can be managed easily. It is easy to use, and even if there is a limit to the number of terminals that can communicate with one communication control device, it is possible to construct a large-scale communication system using multiple terminals, and it is also possible to compare addresses of data flowing through a line within the communication control device. In addition to being able to reduce the load on the host computer, it also has various effects such as being able to use a plurality of communication control devices, so that the communication capability is not affected by the limitations of the processing capacity of a single communication control device.
第１図は本発明の一実施例を示すブロック図、第２図は
本実施例で使用されるデータ形式説明図、第３図は本実
施例の接続要求のデータ形式説明図、第４図は本実施例
の接続確認のデータ形式説明図、である。
１０・・・・・・端末、１１・・・・・・接続要求送信
手段、１２・・・・・・接続確認受信手段、１３・・・
・・・ホストアドレス登録手段、１４・・・・・・通信
手段、２０・・・・・・通信制御装置、２１・・・・・
・接続要求受信手段、２２・・・・・・アドレス比較手
段、２３・・・・・・接続確認送信手段、２４・・・・
・・通信手段、３０・・・・・・ホストコンピュータ、
３１・・・・・・接続確認発行手段、３２・・・・・・
通信手段、２００・・・・・・データ、２０１・・・・
・・送信先アドレス、２０２・・・・・・発信元アドレ
ス、２０３・・・・・・データ部、３００・−・・・・
接続要求、３０１・・・・・・同報アドレス、３０２・
・・・・・端末アドレス、３０３・・・・・・データ部
、４００・・・・・・接続確認、４０１・・・・・・端
末アドレス、４０２・・・・・・ホストアドレス、４０
３・・・・・・データ部。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram explaining the data format used in this embodiment, FIG. 3 is a diagram explaining the data format of a connection request in this embodiment, and FIG. 4 is an explanatory diagram of a data format for connection confirmation in this embodiment. 10... terminal, 11... connection request sending means, 12... connection confirmation receiving means, 13...
... host address registration means, 14 ... communication means, 20 ... communication control device, 21 ...
・Connection request receiving means, 22... Address comparing means, 23... Connection confirmation transmitting means, 24...
... Communication means, 30 ... Host computer,
31...Connection confirmation issuing means, 32...
Communication means, 200... Data, 201...
... Destination address, 202 ... Source address, 203 ... Data section, 300 ...
Connection request, 301...Broadcast address, 302.
...Terminal address, 303 ... Data section, 400 ... Connection confirmation, 401 ... Terminal address, 402 ... Host address, 40
3...Data section.
Claims (1)
回線により多数の端末とのデータ通信を行うシステムで
、回線上を流れるデータに発信元アドレスと送信先アド
レスとが付加されるとともに、送信先アドレスに同報ア
ドレスを指定する同報通信機能を有し、前記ホストコン
ピュータに接続された前記通信制御装置がそれぞれ固有
のアドレスを持ち、前記通信制御装置で送信先アドレス
が自局宛または同報フレームでかつ発信元アドレスが予
め前記通信制御装置内に登録されているデータのみを受
信し、前記通信制御装置内に登録できるアドレス数に制
限を有し、前記端末の一つからの接続要求に対して前記
ホストコンピュータが接続確認を返すことによって接続
が完了する通信接続方式にあって、同報通信機能を用い
て接続要求を送信する前記端末の接続要求送信手段と、
前記接続要求送信手段を用いて送信された接続要求を受
信する前記通信制御装置の接続要求受信手段と、前記接
続要求受信手段で受信した接続要求の発信元アドレスが
予め受信した前記通信制御装置内に登録されているかど
うかを比較して発信元アドレスが登録されている接続要
求のみを前記ホストコンピュータに通知する前記通信制
御装置のアドレス比較手段と、前記アドレス比較手段に
よって前記ホストコンピュータに通知された接続要求に
対して接続確認を前記通信制御装置に発行する前記ホス
トコンピュータの接続確認発行手段と、前記ホストコン
ピュータから前記通信制御装置に発行された接続確認に
よって前記通信制御装置のアドレスをホストアドレスと
して接続確認の発信元アドレスにうめこんで接続確認を
前記端末に送信する前記通信制御装置の接続確認送信手
段と、前記通信制御装置から送信された接続確認を受信
する前記端末の接続確認受信手段と、前記接続確認受信
手段によって受信したデータから発信元アドレスをホス
トアドレスとして前記端末内に登録する前記端末のホス
トアドレス登録手段と、前記ホストアドレス登録手段に
よって登録されたホストアドレスを用いて、前記ホスト
コンピュータに前記通信制御装置を介して通信を行う前
記端末、前記通信制御装置、前記ホストコンピュータの
それぞれの通信手段とを有することを特徴とする通信接
続方式。A system in which multiple communication control devices are connected to a host computer to perform data communication with a large number of terminals over a line, in which a source address and a destination address are added to the data flowing over the line, and a source address and a destination address are added to the data flowing over the line. It has a broadcast communication function that specifies a broadcast address, and each of the communication control devices connected to the host computer has a unique address, and the communication control device has a transmission destination address that is addressed to its own station or a broadcast frame. and receives only data whose source address is registered in advance in the communication control device, has a limit on the number of addresses that can be registered in the communication control device, and responds to a connection request from one of the terminals. In a communication connection method in which the connection is completed when the host computer returns a connection confirmation, a connection request sending means of the terminal transmits the connection request using a broadcast communication function;
A connection request receiving means of the communication control device that receives a connection request transmitted using the connection request transmitting means, and a source address of the connection request received by the connection request receiving means is received in advance in the communication control device. an address comparing means of the communication control device for notifying the host computer only of connection requests for which a source address is registered by comparing whether or not the source address is registered; connection confirmation issuing means of the host computer that issues a connection confirmation to the communication control device in response to a connection request, and a connection confirmation issued from the host computer to the communication control device to set the address of the communication control device as a host address. connection confirmation transmitting means of the communication control device that sends the connection confirmation to the terminal by filling it in the source address of the connection confirmation; and connection confirmation reception means of the terminal that receives the connection confirmation transmitted from the communication control device; Host address registration means of the terminal registers a source address as a host address in the terminal from the data received by the connection confirmation reception means, and the host computer uses the host address registered by the host address registration means. 1. A communication connection system, comprising communication means for each of the terminal, the communication control device, and the host computer that communicate via the communication control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2043155A JPH03245636A (en) | 1990-02-23 | 1990-02-23 | Communication connection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2043155A JPH03245636A (en) | 1990-02-23 | 1990-02-23 | Communication connection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03245636A true JPH03245636A (en) | 1991-11-01 |
Family
ID=12655967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2043155A Pending JPH03245636A (en) | 1990-02-23 | 1990-02-23 | Communication connection system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03245636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6405235B1 (en) | 1998-12-04 | 2002-06-11 | Nec Corporation | Data receiving device capable of executing simultaneous reception operation |
-
1990
- 1990-02-23 JP JP2043155A patent/JPH03245636A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6405235B1 (en) | 1998-12-04 | 2002-06-11 | Nec Corporation | Data receiving device capable of executing simultaneous reception operation |
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