JPH06252924A - Communications system - Google Patents
Communications systemInfo
- Publication number
- JPH06252924A JPH06252924A JP3298293A JP3298293A JPH06252924A JP H06252924 A JPH06252924 A JP H06252924A JP 3298293 A JP3298293 A JP 3298293A JP 3298293 A JP3298293 A JP 3298293A JP H06252924 A JPH06252924 A JP H06252924A
- Authority
- JP
- Japan
- Prior art keywords
- data
- control unit
- communication
- equipment
- devices
- 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.)
- Granted
Links
Landscapes
- Small-Scale Networks (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、１対１で通信を行う一
対の機器を複数組備える通信システムに関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system including a plurality of pairs of devices that perform one-to-one communication.
【０００２】[0002]
【従来の技術】従来の１対１で通信を行う一対の機器を
複数組備える通信システムでは、図５に示すように、夫
々対応する機器（Ｎ1 とＮ2 ，Ａ1 とＡ2 ，Ｂ1 と
Ｂ2 ）とを夫々個別の信号線（ケーブル）Ｌ1 〜Ｌ3 で
接続していた。なお、夫々の信号線Ｌ1 〜Ｌ3 は例えば
２線式となっている。2. Description of the Related Art In a conventional communication system having a plurality of pairs of devices for performing one-to-one communication, as shown in FIG. 5, the corresponding devices (N 1 and N 2 , A 1 and A 2 , B) are connected. 1 and B 2 ) are connected by individual signal lines (cables) L 1 to L 3 . The signal lines L 1 to L 3 are of the two-wire type, for example.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述の
ように各組をなす機器間を個別に信号線で接続する場合
に、組数が多くなると、信号線の本数がそれに伴って増
加する。このように組数が多い場合においては、配線作
業が煩雑になり、配線誤りなどを起こす恐れがあった。However, when the number of sets is large when the devices forming each set are individually connected by signal lines as described above, the number of signal lines increases accordingly. When the number of sets is large in this way, the wiring work becomes complicated and there is a risk of causing wiring errors.
【０００４】本発明は上述の点に鑑みて為されたもので
あり、その目的とするところは、１対１で通信を行う一
対の機器を複数組備える通信システムにおいて、一対の
信号線１本で通信を行うことを可能とすることになる。The present invention has been made in view of the above points, and an object of the present invention is to provide a pair of signal lines in a communication system including a plurality of pairs of devices that perform one-to-one communication. It will be possible to communicate with.
【０００５】[0005]
【課題を解決するための手段】本発明では、上記目的を
達成するために、１対１で通信を行う一対の機器を複数
組備え、すべての機器を一対の信号線を介して互いに接
続し、各機器に個別にアドレスを設定し、各機器間でデ
ータの送信を行う必要が生じたとき、組をなす相手の機
器のアドレスを付加してデータを信号線を介して伝送
し、データの送信先の機器は送信側の機器に対してデー
タを受信したことを示すデータの送信先の機器のアドレ
スを付与した応答信号を返送している。In order to achieve the above-mentioned object, the present invention comprises a plurality of pairs of equipment for performing one-to-one communication, and connects all equipment to each other through a pair of signal lines. , When it is necessary to set an address to each device individually and to transmit data between each device, add the address of the other device in the pair and transmit the data via the signal line. The device at the transmission destination returns to the device at the transmission side a response signal to which the address of the device at the transmission destination of the data is added.
【０００６】なお、少なくとも機器に対してデータの送
信を行う制御指令を与え、データの受信側の機器からの
応答信号を受けてデータが伝送されたことを監視する処
理を行う制御ユニットを信号線に接続してもよい。It is to be noted that at least a control unit for giving a control command for transmitting data to a device and receiving a response signal from the device on the data receiving side to monitor the transmission of the data is a signal line. You may connect to.
【０００７】[0007]
【作用】本発明は、上述のようにすれば、組をなす相手
を特定してデータの伝送を行え、１対１で通信を行う一
対の機器を複数組備える通信システムにおいて、一対の
信号線１本で通信を行うことが可能となる。According to the present invention, as described above, a pair of signal lines can be provided in a communication system including a plurality of pairs of devices which can identify a pair of parties to transmit data and perform one-to-one communication. It becomes possible to communicate with one line.
【０００８】[0008]
【実施例】（実施例１）図１乃至図３に基づいて本発明
の一実施例を説明する。本実施例では、図１に示すよう
に、各機器Ｎ1 ，Ｎ2 ，Ａ1 ，Ａ2 ，Ｂ1 ，Ｂ2 を一対
の信号線Ｌを介して接続する。そして、この信号線Ｌに
制御ユニットＣＵを接続する。(Embodiment 1) An embodiment of the present invention will be described with reference to FIGS. In this embodiment, as shown in FIG. 1, the devices N 1 , N 2 , A 1 , A 2 , B 1 , and B 2 are connected via a pair of signal lines L. Then, the control unit CU is connected to the signal line L.
【０００９】各組をなす機器Ｎ1 とＮ2 ，Ａ1 とＡ2 ，
Ｂ1 とＢ2 との間の通信は次のように行う。なお、以下
の説明は機器Ｎ1 から機器Ｎ2 に対してデータを伝送す
る場合を例として説明する。制御ユニットＣＵは、組を
なす一方の機器Ｎ1 に対してデータを送信させる制御指
令（コマンド）を与え、機器Ｎ1 かデータを送信させ
る。このとき、制御ユニットＣＵが上記データを受信す
る。Each pair of devices N 1 and N 2 , A 1 and A 2 ,
Communication between B 1 and B 2 is performed as follows. Note that the following description will be made by taking as an example the case where data is transmitted from the device N 1 to the device N 2 . The control unit CU gives a control command (command) for transmitting data to one of the paired devices N 1 and causes the device N 1 to transmit the data. At this time, the control unit CU receives the data.
【００１０】そして、制御ユニットＣＵはそのデータを
機器Ｎ2 に対して送信する。このデータを受信した機器
Ｎ2 では、データを受信したことを示す応答信号を制御
ユニットＣＵに対して返送して、データが受信されたこ
とを制御ユニットＣＵに知らせる。以上の通信制御を制
御ユニットＣＵが行うことにより、１対１の通信を行う
複数組の機器を１対の信号線Ｌに接続しても、図５のよ
うに１対１の通信を行う機器間を個別に信号線Ｌで接続
した場合と同様の通信を行うことができる。Then, the control unit CU sends the data to the device N 2 . The device N 2 that has received this data returns a response signal indicating that the data has been received to the control unit CU to notify the control unit CU that the data has been received. By performing the above communication control by the control unit CU, even if a plurality of sets of devices that perform one-to-one communication are connected to one pair of signal lines L, devices that perform one-to-one communication as shown in FIG. It is possible to perform the same communication as in the case where the respective units are individually connected by the signal line L.
【００１１】ところで、上述のように制御ユニットＣＵ
から機器Ｎ1 に対してデータを送信する制御指令を与え
たときに、機器Ｎ1 はその制御指令が自己に対する指令
であることを識別する必要がある。また、制御ユニット
ＣＵからのデータを受信する機器Ｎ2 でも、そのデータ
が自己に対して送信されたデータであることを識別する
必要がある。By the way, as described above, the control unit CU
When a control command for transmitting data is given from the device to the device N 1 , the device N 1 needs to identify that the control command is a command for itself. Further, the device N 2 that receives the data from the control unit CU also needs to identify that the data is the data transmitted to itself.
【００１２】このため、各機器には個別にアドレスを設
定してあり、制御ユニットＣＵは制御指令及びデータを
送信先の機器を特定するアドレスデータを付加して送信
する。各機器Ｎ1 ，Ｎ2 ，…，Ｂ1 ，Ｂ2 ではアドレス
データと自己に設定されたアドレスとが一致したときの
み、その制御ユニットＣＵからの伝送信号を受信する。
図３に制御ユニットＣＵのメモリマップを示し、送受信
データを格納する領域をイで示す。For this reason, an address is set individually for each device, and the control unit CU transmits the control command and the data by adding the address data for specifying the device of the transmission destination. Each of the devices N 1 , N 2 , ..., B 1 and B 2 receives the transmission signal from the control unit CU only when the address data and the address set in the device match.
FIG. 3 shows a memory map of the control unit CU, and an area for storing transmission / reception data is indicated by a.
【００１３】なお、例えば機器Ｎ1 ，Ｎ2 で送受信を行
う側が決まっている場合には、機器Ｎ1 ，Ｎ2 に同一の
アドレスを設定するようにしてもよい。また、上記通信
制御はアドレス順に従って各機器Ｎ1 ，Ｎ2 ，…，
Ｂ1 ，Ｂ2 に対して順次サイクリックに行うことによ
り、すべての組をなす機器Ｎ1 ，Ｎ2 ，…，Ｂ1 ，Ｂ2
の間での通信が可能である。また、上記通信に上述した
場合とは逆に機器Ｎ2 から機器Ｎ1 に対してデータを伝
送する処理を含ませることにより、組をなす機器、例え
ばＮ1 とＮ2 との間で双方向でデータ伝送を行わせるこ
とが可能となる。さらに、必ずしも常時順次サイクリッ
クにデータの伝送を行わせる必要はなく、制御ユニット
ＣＵでデータを伝送する必要が生じたときのみ、上記制
御を行って必要な組をなす機器間でデータ伝送を行わせ
るようにしてもよい。[0013] Incidentally, for example, when the side of transmitting and receiving by the device N 1, N 2 is determined, may be set the same address to the device N 1, N 2. Further, the communication control is performed according to the order of addresses by each device N 1 , N 2 ,.
By cyclically performing B 1 and B 2 sequentially, all the devices N 1 , N 2 , ..., B 1 , B 2 forming a set
Communication between the two is possible. On the contrary, by including a process of transmitting data from the device N 2 to the device N 1 in the above-mentioned communication, the bidirectional communication between the pair of devices, for example, N 1 and N 2. Data transmission can be performed by. Furthermore, it is not always necessary to always cyclically transmit data, and only when the control unit CU needs to transmit data, the above-mentioned control is performed to perform data transmission between the necessary sets of devices. You may allow it.
【００１４】ところで、上述の場合には制御ユニットＣ
Ｕを設けてあったが、例えば上述の場合の機器Ｎ1 など
のデータ送信側の機器に、制御ユニットＣＵの機能を組
み込めば、制御ユニットＣＵを用いることなく、上述の
場合と同様の通信が可能となる。 （実施例２）図４に他の実施例の通信方法を示す。本実
施例はシステム構成は図１と同じであり、本実施例では
データの伝送を例えば機器Ｎ1 から機器Ｎ2 に直接に行
わせた点に特徴がある。By the way, in the above case, the control unit C
Although U is provided, if the function of the control unit CU is incorporated in a device on the data transmission side such as the device N 1 in the above case, the same communication as in the above case can be performed without using the control unit CU. It will be possible. (Embodiment 2) FIG. 4 shows a communication method of another embodiment. The system configuration of this embodiment is the same as that of FIG. 1, and the feature of this embodiment is that data transmission is performed directly from the device N 1 to the device N 2 , for example.
【００１５】本実施例の動作は次のようになる。なお、
この動作説明も、機器Ｎ1 から機器Ｎ2 に対してデータ
を伝送する場合を例として説明する。まず、制御ユニッ
トＣＵが機器Ｎ1 に対してデータを送信させる制御指令
を与える。このとき、実施例１の場合には機器Ｎ1 はデ
ータを一旦制御ユニットＣＵが受信していたが、本実施
例の場合には、機器Ｎ2 がデータを直接に受信する。The operation of this embodiment is as follows. In addition,
This operation will also be described by taking the case of transmitting data from the device N 1 to the device N 2 as an example. First, the control unit CU gives a control command for transmitting data to the device N 1 . At this time, in the case of the first embodiment, the device N 1 once received the data by the control unit CU, but in the case of the present embodiment, the device N 2 directly receives the data.
【００１６】そして、データを受信した機器Ｎ2 では実
施例１の場合と同様に制御ユニットＣＵに対してデータ
を受信したことを示す応答信号を返送する。つまり、本
実施例の場合には、制御ユニットＣＵは、単にデータを
伝送させる制御指令を与え、データが受信されたことを
監視するように働く。このようにすれば、機器Ｎ1 から
制御ユニットＣＵにデータを送信し、制御ユニットＣＵ
から機器Ｎ2 にデータを送信する処理を、機器Ｎ1 から
機器Ｎ2 へのデータの伝送だけで対応でき、通信手順が
簡単になり、通信時間を短縮することができる。Then, the device N 2 that has received the data returns a response signal indicating that the data has been received to the control unit CU as in the case of the first embodiment. That is, in the case of the present embodiment, the control unit CU acts to simply give a control command for transmitting data and monitor that the data has been received. In this way, the data is transmitted from the device N 1 to the control unit CU, and the control unit CU
The process of transmitting data from the device N 2 to the device N 2 can be handled only by transmitting the data from the device N 1 to the device N 2 , the communication procedure is simplified, and the communication time can be shortened.
【００１７】なお、本実施例の場合にも、データ送信側
の機器に制御ユニットＣＵの機能を組み込めば、制御ユ
ニットＣＵを用いる必要がない。Also in the case of this embodiment, if the function of the control unit CU is incorporated in the device on the data transmitting side, it is not necessary to use the control unit CU.
【００１８】[0018]
【発明の効果】本発明は上述のように、１対１で通信を
行う一対の機器を複数組備え、すべての機器を一対の信
号線を介して互いに接続し、各機器に個別にアドレスを
設定し、各機器間でデータの送信を行う必要が生じたと
き、組をなす相手の機器のアドレスを付加してデータを
信号線を介して伝送し、データの送信先の機器は送信側
の機器に対してデータを受信したことを示すデータの送
信先の機器のアドレスを付与した応答信号を返送してい
るので、組をなす相手を特定してデータの伝送を行え、
１対１で通信を行う一対の機器を複数組備える通信シス
テムにおいて、一対の信号線１本で通信を行うことがで
きる。As described above, the present invention is provided with a plurality of pairs of devices for one-to-one communication, all devices are connected to each other through a pair of signal lines, and each device is individually assigned an address. When it becomes necessary to set and send data between devices, the address of the other device in the pair is added and the data is transmitted via the signal line. Since a response signal with the address of the destination device of the data indicating that the data has been received is sent back to the device, data transmission can be performed by specifying the other party in the pair,
In a communication system including a plurality of pairs of devices that perform one-to-one communication, communication can be performed using one pair of signal lines.
【図１】本発明の一実施例のシステム構成図である。FIG. 1 is a system configuration diagram of an embodiment of the present invention.
【図２】（ａ）〜（ｃ）は制御ユニットと各機器との通
信処理動作を示すフローチャートである。2A to 2C are flowcharts showing a communication processing operation between the control unit and each device.
【図３】制御ユニットのメモリマップである。FIG. 3 is a memory map of a control unit.
【図４】（ａ）〜（ｃ）は他の実施例の制御ユニットと
各機器との通信処理動作を示すフローチャートである。4A to 4C are flowcharts showing a communication processing operation between a control unit and each device of another embodiment.
【図５】従来の１対１で通信を行う一対の機器を複数組
備える通信システムのシステム構成図である。FIG. 5 is a system configuration diagram of a conventional communication system including a plurality of pairs of devices that perform one-to-one communication.
ＣＵ 制御ユニット Ｎ1 ，Ｎ2 ，Ａ1 ，Ａ2，Ｂ1 ，Ｂ2 機器 Ｌ 信号線CU control unit N 1 , N 2 , A 1 , A 2 , B 1 , B 2 equipment L signal line
Claims (2)
備え、すべての機器を一対の信号線を介して互いに接続
し、各機器に個別にアドレスを設定し、各機器間でデー
タの送信を行う必要が生じたとき、組をなす相手の機器
のアドレスを付加してデータを信号線を介して伝送し、
データの送信先の機器は送信側の機器に対してデータを
受信したことを示すデータの送信先の機器のアドレスを
付与した応答信号を返送して成ることを特徴とする通信
システム。1. A plurality of pairs of devices that perform one-to-one communication are provided, all devices are connected to each other via a pair of signal lines, an address is individually set for each device, and data is sent between each device. When it becomes necessary to send the data, the address of the other device in the pair is added and the data is transmitted via the signal line.
A communication system, wherein the device of the data transmission destination returns a response signal to the device of the transmission side to which the address of the device of the data transmission destination is added, which indicates that the data has been received.
行う制御指令を与え、データの受信側の機器からの応答
信号を受けてデータが伝送されたことを監視する処理を
行う制御ユニットを信号線に接続して成ることを特徴と
する請求項１記載の通信システム。2. A control unit for providing at least a control command for transmitting data to a device, receiving a response signal from a device on the data receiving side, and monitoring the transmission of data, the signal line being a control unit. The communication system according to claim 1, wherein the communication system is connected to the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03298293A JP3234330B2 (en) | 1993-02-23 | 1993-02-23 | Communications system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03298293A JP3234330B2 (en) | 1993-02-23 | 1993-02-23 | Communications system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06252924A true JPH06252924A (en) | 1994-09-09 |
| JP3234330B2 JP3234330B2 (en) | 2001-12-04 |
Family
ID=12374088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03298293A Expired - Fee Related JP3234330B2 (en) | 1993-02-23 | 1993-02-23 | Communications system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3234330B2 (en) |
-
1993
- 1993-02-23 JP JP03298293A patent/JP3234330B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3234330B2 (en) | 2001-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH06252924A (en) | Communications system | |
| JP3354620B2 (en) | AV network | |
| JPS62249542A (en) | Data transfer system | |
| JP2757279B2 (en) | Switch for Fiber Channel Standard System and Connection Method | |
| JP2658129B2 (en) | Data transmission equipment | |
| JPS6146645A (en) | Data transmission equipment | |
| JPH0531336B2 (en) | ||
| JPS63268394A (en) | Signal amplifier | |
| JPS6132629A (en) | Control method of multiple circuit communication | |
| JPH02272843A (en) | Data transmission equipment | |
| JPS6059847A (en) | Multiple address communication confirming system | |
| JPH0561820B2 (en) | ||
| JPH0380732A (en) | Bus transmission system | |
| JPH06141098A (en) | Communication equipment for air conditioner | |
| JPH01118939A (en) | Health check system for remote supervision system | |
| JPH06141383A (en) | 2 Behavior control command transmission method | |
| JPS6276959A (en) | Setting system for function data of terminal equipment | |
| JPH0584693B2 (en) | ||
| JPH02198244A (en) | Communication interface device | |
| JPS628249A (en) | Control system for data monitoring | |
| JPH0572141B2 (en) | ||
| JPH02113646A (en) | Equipment connecting system | |
| JPH0117625B2 (en) | ||
| JPH0738655B2 (en) | Preliminary identification method of availability of access to line processing unit by standby processor | |
| JPH04310035A (en) | Omnibus teleprinter system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010911 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080921 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080921 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090921 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090921 Year of fee payment: 8 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090921 Year of fee payment: 8 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090921 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100921 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110921 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |