JP2000115036A - Data transmitting device - Google Patents

Data transmitting device

Info

Publication number
JP2000115036A
JP2000115036A JP28612298A JP28612298A JP2000115036A JP 2000115036 A JP2000115036 A JP 2000115036A JP 28612298 A JP28612298 A JP 28612298A JP 28612298 A JP28612298 A JP 28612298A JP 2000115036 A JP2000115036 A JP 2000115036A
Authority
JP
Japan
Prior art keywords
data
signal
transmitting device
program
personal computer
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
Application number
JP28612298A
Other languages
Japanese (ja)
Inventor
Shigetoshi Sekiyama
繁利 関山
Haruo Nakamura
治男 中村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAITAKKU KK
Kawamoto Electric Co Ltd
Original Assignee
MAITAKKU KK
Kawamoto Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MAITAKKU KK, Kawamoto Electric Co Ltd filed Critical MAITAKKU KK
Priority to JP28612298A priority Critical patent/JP2000115036A/en
Publication of JP2000115036A publication Critical patent/JP2000115036A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Landscapes

  • General Factory Administration (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain a data transmitting device by which data transmission with resistance to noise is executed without requiring a dedicated cable and without a complicated work by utilizing existing power lines through the use of a spread spectrum method and transmitting a program or numerical value data. SOLUTION: This system is the one by which the program or numerical data are exchanged through existing electric lighting lines 3 between a personal computer 1 and six NC working machines 2. The signal cable 4 of the personal computer 1 is connected to the electric lighting lines 3 with the data transmitting device 5. In the meantime, the signal cables 6 of the NC working machines 2 are connected to the electric lighting lines 3 with the data transmitting device 5. The data transmitting device 5 transmits the electric signal of the program or numerical data to a target device by sharing the electric lighting lines 3 for supplying AC 100 V and three phases 200 V. Therefore, release from the complicated cable wiring work is attained.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、NC加工機やパー
ソナルコンピュータなどのプログラム或いは数値データ
をホストコンピュータなどに伝送するデータ伝送装置に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data transmission device for transmitting a program or numerical data of an NC machine or a personal computer to a host computer or the like.

【0002】[0002]

【従来の技術】従来、NC加工機やパーソナルコンピュ
ータなどのプログラム或いは数値データの保存は、紙テ
ープ、フロッピーディスクが主体であったが、光通信や
LANのようなネットワーク化が進んでくると、ホスト
コンピュータとNC加工機やパーソナルコンピュータな
どを接続してプログラムやデータを集中管理するように
なった。
2. Description of the Related Art Conventionally, programs such as NC machines and personal computers or numerical data are mainly stored in a paper tape or a floppy disk. Computers and NC machines and personal computers have been connected to centrally manage programs and data.

【0003】一般に、通信に使用されるインタフェース
としては、RS232Cなどのシリアル通信方式が主流
であり、通信方法としては、専用通信ケーブルや光ファ
イバを利用する有線方式、電波や赤外線を利用する無線
方式とがある。
Generally, a serial communication system such as RS232C is mainly used as an interface used for communication, and a communication system is a wired system using a dedicated communication cable or an optical fiber, or a wireless system using radio waves or infrared rays. There is.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、従来の
有線方式では、NC加工機やパーソナルコンピュータな
どとホストコンピュータとの間でデータの授受を行う場
合専用のケーブルを必要とし、しかもNC加工機が設置
されている工場では、ケーブルの取り回しが煩雑にな
る。また、無線方式では、自動車や機械の発するノイズ
や遮蔽物の影響を受けやすい等どの方式を取ってみても
多くの問題を抱えている。
However, in the conventional wired system, a dedicated cable is required for exchanging data between an NC processing machine or a personal computer and the host computer, and the NC processing machine is installed. In a factory where it is used, cable management becomes complicated. In addition, the wireless system has many problems regardless of which system is used, such as being susceptible to noises or obstacles generated by automobiles or machines.

【0005】本発明は、従来の技術が有するこのような
問題点に鑑みてなされたものであり、その目的とすると
ころは、専用のケーブルや煩雑な工事を必要とせず、ノ
イズに対して強いデータ伝送ができるデータ伝送装置を
提供しようとするものである。
The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to eliminate the need for a dedicated cable or complicated construction, and to be resistant to noise. An object of the present invention is to provide a data transmission device capable of data transmission.

【0006】[0006]

【課題を解決するための手段】上記課題を解決すべく本
発明は、NC加工機やパーソナルコンピュータなどのプ
ログラム或いは数値データをホストコンピュータ、他の
NC加工機やパーソナルコンピュータなどに伝送するデ
ータ伝送装置であって、スペクトラム拡散方式を用いる
ことにより既設の電力線を利用して前記プログラム或い
は数値データを伝送する伝送手段を有するものである。
SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a data transmission apparatus for transmitting a program or numerical data of an NC processing machine or a personal computer to a host computer, another NC processing machine or a personal computer. And a transmission means for transmitting the program or the numerical data using an existing power line by using a spread spectrum method.

【0007】[0007]

【発明の実施の形態】以下に本発明の実施の形態を添付
図面に基づいて説明する。ここで、図1は本発明に係る
データ伝送装置を用いたデータ伝送システムの説明図、
図2はスペクトラム拡散方式の概念説明図、図3は電灯
線を使用したスペクトラム拡散方式と従来方式との比較
説明図である。
Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is an explanatory diagram of a data transmission system using the data transmission device according to the present invention,
FIG. 2 is a conceptual explanatory diagram of the spread spectrum method, and FIG. 3 is a comparative explanatory diagram of a spread spectrum method using a power line and a conventional method.

【0008】本発明に係るデータ伝送装置を用いたデー
タ伝送システムは、図1に示すように、パーソナルコン
ピュータ1と6台のNC加工機2との間で、プログラム
或いは数値データの授受を既設の電灯線3を介して行う
システムである。
A data transmission system using a data transmission apparatus according to the present invention, as shown in FIG. 1, transmits and receives programs or numerical data between a personal computer 1 and six NC machines 2. This is a system performed via the power line 3.

【0009】パーソナルコンピュータ1の信号ケーブル
4は、データ伝送装置5を介して電灯線3に接続され
る。一方、NC加工機2の信号ケーブル6も、データ伝
送装置5を介して電灯線3に接続される。なお、7は電
灯線3から電力を供給するコンセント、8はコンセント
7に接続するプラグである。
A signal cable 4 of the personal computer 1 is connected to a power line 3 via a data transmission device 5. On the other hand, the signal cable 6 of the NC processing machine 2 is also connected to the power line 3 via the data transmission device 5. In addition, 7 is an outlet for supplying power from the power line 3, and 8 is a plug connected to the outlet 7.

【0010】データ伝送装置5は、スペクトラム拡散方
式を用いて、電力線として使われているAC100Vや
三相200Vなどを供給する電力線3を共用してプログ
ラム或いは数値データの電気信号を目的の装置まで伝送
する装置である。
The data transmission device 5 transmits an electric signal of a program or numerical data to a target device by sharing a power line 3 for supplying AC 100 V or three-phase 200 V used as a power line by using a spread spectrum method. It is a device to do.

【0011】ここで、スペクトラム拡散方式とは、伝送
したい情報波形を変調操作によって搬送波に重畳させる
方式である。このとき変調された信号は、ある周波数幅
を持っている。一般には、この周波数幅が数Hz程度で
あるのに対し、スペクトラム拡散方式では、その数十倍
から数千倍に広くさせる変調方式である。周波数幅が広
くなることによって、 信号の秘匿性がある。 妨害波、干渉波の排除能力が高い。 同じ周波数帯域を共用しても混信を防ぐことができ
る。 などの特徴を有することになる。
Here, the spread spectrum system is a system in which an information waveform to be transmitted is superimposed on a carrier by a modulation operation. At this time, the modulated signal has a certain frequency width. In general, this frequency width is about several Hz, whereas the spread spectrum method is a modulation method in which the frequency width is increased by several tens to several thousand times. Widening the frequency width provides signal confidentiality. High ability to reject interfering waves and interference waves. Even if the same frequency band is shared, interference can be prevented. And so on.

【0012】例えば、図2(a)に示す情報信号Sを6
0HzのAC100Vの交流電源を供給する電灯線3を
使用して目的の装置に伝送する場合に、図2(b)に示
すように、データ伝送装置5により情報信号Sを送信信
号として拡散させた変調信号S’にする。そして、拡散
させた変調信号S’を電灯線3を介して目的の装置に伝
送する。
For example, the information signal S shown in FIG.
When transmitting to a target device using the power line 3 that supplies 0 Hz AC 100 V AC power, as shown in FIG. 2B, the information signal S is spread as a transmission signal by the data transmission device 5. The modulation signal is S '. Then, the spread modulated signal S ′ is transmitted to the target device via the power line 3.

【0013】伝送途中で、図2(c)に示すように、例
えば60HzのAC100Vの交流周波数がノイズNと
して拡散させた変調信号S’に乗ってきて、図2(d)
に示すように、拡散させた変調信号S’のうち一部(例
えば、1〜2個位)が欠落する場合がある。
In the course of transmission, as shown in FIG. 2C, for example, an AC 100 V AC frequency of 60 Hz rides on the modulated signal S 'spread as noise N, and as shown in FIG.
As shown in (1), a part (for example, about one or two) of the spread modulated signal S ′ may be missing.

【0014】しかし、拡散させた変調信号S’のうち一
部が欠落しても、拡散させた変調信号S’全体としては
何等影響を受けずにデータ伝送装置5により、図2
(e)に示すように、元の情報信号Sに復元することが
できる。
However, even if a part of the spread modulated signal S ′ is lost, the spread modulated signal S ′ is not affected at all by the data transmission device 5 as shown in FIG.
As shown in (e), the original information signal S can be restored.

【0015】次に、電灯線3を使用したスペクトラム拡
散方式と従来方式の比較を図3に示す。スペクトラム拡
散方式(SS方式)では、図3(a)に示すように、信
号を送るための送信周波数帯を10kHzから450k
Hzの帯域に分散させるので、送信信号としては単位ヘ
ルツ当たりの電圧レベルは低下する。なお、図3(a)
において、横軸は周波数f、縦軸は電圧V(f)であ
り、同(b)〜(e)も同様である。
Next, FIG. 3 shows a comparison between the spread spectrum method using the power line 3 and the conventional method. In the spread spectrum system (SS system), as shown in FIG. 3A, a transmission frequency band for transmitting a signal is changed from 10 kHz to 450 kHz.
Since the signal is dispersed in the frequency band of Hz, the voltage level per unit Hertz of the transmission signal decreases. FIG. 3 (a)
, The horizontal axis represents the frequency f and the vertical axis represents the voltage V (f), and the same applies to (b) to (e).

【0016】一方、従来方式では、図3(b)に示すよ
うに、信号を送るための送信周波数帯をある周波数f0
を中心として±数%の帯域を有するので、送信信号とし
ては単位ヘルツ当たりの電圧レベルは高い。
On the other hand, in the conventional system, as shown in FIG. 3B, a transmission frequency band for transmitting a signal is set to a certain frequency f 0.
, The voltage level per unit hertz is high as a transmission signal.

【0017】また、電灯線の特性として、図3(c)に
示すように、一般に周波数帯域全体にわたってノイズが
乗るが、例えば周波数f0を中心とした帯域で、特に送
信信号を減衰させるようなノイズが生じる場合がある。
As a characteristic of the power line, as shown in FIG. 3C, noise generally occurs over the entire frequency band. For example, in a band centered on the frequency f 0 , a noise such as a transmission signal is attenuated. Noise may occur.

【0018】すると、SS方式では、送信信号としては
単位ヘルツ当たりの電圧レベルは低いが、送信信号を1
0kHzから450kHzの帯域に分散させているの
で、図3(d)に示すように、周波数f0を中心とした
±数%の帯域で分散させた信号の一部が欠落するもの
の、送信信号全体としての影響は少ない。従って、分散
させた信号の一部が欠落するものの、分散させた信号か
ら元の信号に復元することが容易にできる。
In the SS system, although the transmission signal has a low voltage level per unit hertz, the transmission signal is 1
As shown in FIG. 3 (d), although a part of the signal dispersed in a band of ± several% around the frequency f 0 is missing, but the entire transmission signal is dispersed, as shown in FIG. The effect is small. Therefore, although a part of the dispersed signal is lost, it is easy to restore the original signal from the dispersed signal.

【0019】一方、従来方式では、送信信号としては単
位ヘルツ当たりの電圧レベルは高いが、送信信号が周波
数f0を中心として±数%の帯域に存在するので、図3
(e)に示すように、周波数f0を中心としたノイズに
より送信信号は大きく減衰し、ノイズによる影響は大き
い。
On the other hand, in the conventional system, the transmission signal has a high voltage level per unit hertz, but since the transmission signal exists in a band of ± several% around the frequency f 0 , FIG.
As shown in (e), the transmission signal is greatly attenuated by noise centered on the frequency f 0 , and the influence of the noise is great.

【0020】[0020]

【発明の効果】以上説明したように本発明によれば、ス
ペクトラム拡散方式を用いることにより、ノイズに対し
て強いデータ伝送ができる。また、専用の伝送ケーブル
を必要とせず、NC加工機やパーソナルコンピュータな
どのプログラム或いは数値データをホストコンピュー
タ、他のNC加工機やパーソナルコンピュータなどに伝
送が可能となり、特にNC加工機が設置されている工場
での煩雑なケーブル取り回し作業から解放される。
As described above, according to the present invention, data transmission resistant to noise can be performed by using the spread spectrum system. In addition, a dedicated transmission cable is not required, and a program or numerical data of an NC processing machine or a personal computer can be transmitted to a host computer, another NC processing machine or a personal computer, and in particular, an NC processing machine is installed. You are freed from complicated cable management work in factories.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係るデータ伝送装置を用いたデータ伝
送システムの説明図
FIG. 1 is an explanatory diagram of a data transmission system using a data transmission device according to the present invention.

【図2】(a)乃至(e)はスペクトラム拡散方式の概
念説明図
FIGS. 2A to 2E are conceptual explanatory diagrams of a spread spectrum system.

【図3】(a)乃至(e)は電灯線を使用したスペクト
ラム拡散方式と従来方式との比較説明図
FIGS. 3A to 3E are explanatory diagrams comparing a spread spectrum method using a power line and a conventional method.

【符号の説明】[Explanation of symbols]

1…パーソナルコンピュータ、2…NC加工機、3…電
灯線、4,6…電源ケーブル、5…データ伝送装置、7
…コンセント、8…プラグ。
DESCRIPTION OF SYMBOLS 1 ... Personal computer, 2 ... NC processing machine, 3 ... Electric power line, 4, 6 ... Power cable, 5 ... Data transmission device, 7
... outlet, 8 ... plug.

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 5H269 AB01 BB01 BB11 KK01 KK03 5K022 EE01 EE12 EE21 5K046 BA02 BA05 BB05 PP01 PS05 PS55  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H269 AB01 BB01 BB11 KK01 KK03 5K022 EE01 EE12 EE21 5K046 BA02 BA05 BB05 PP01 PS05 PS55

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 NC加工機やパーソナルコンピュータな
どのプログラム或いは数値データをホストコンピュー
タ、他のNC加工機やパーソナルコンピュータなどに伝
送するデータ伝送装置であって、スペクトラム拡散方式
を用いることにより既設の電力線を利用して前記プログ
ラム或いは数値データを伝送する伝送手段を有すること
を特徴とするデータ伝送装置。
1. A data transmission apparatus for transmitting a program or numerical data of an NC processing machine or a personal computer to a host computer, another NC processing machine or a personal computer, etc., wherein an existing power line is provided by using a spread spectrum method. A data transmission device comprising transmission means for transmitting the program or the numerical data by utilizing the program.
JP28612298A 1998-10-08 1998-10-08 Data transmitting device Pending JP2000115036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28612298A JP2000115036A (en) 1998-10-08 1998-10-08 Data transmitting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28612298A JP2000115036A (en) 1998-10-08 1998-10-08 Data transmitting device

Publications (1)

Publication Number Publication Date
JP2000115036A true JP2000115036A (en) 2000-04-21

Family

ID=17700224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28612298A Pending JP2000115036A (en) 1998-10-08 1998-10-08 Data transmitting device

Country Status (1)

Country Link
JP (1) JP2000115036A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006101130A (en) * 2004-09-29 2006-04-13 Ibiden Co Ltd Manufacturing facilities
JP4810051B2 (en) * 2000-06-07 2011-11-09 コネクサント システムズ,アイエヌシー. Method and apparatus for media access control in power line communication network system
CN106200550A (en) * 2015-05-27 2016-12-07 安萨尔多能源英国知识产权有限公司 To the method for component processing and the device that performs the method on gang tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4810051B2 (en) * 2000-06-07 2011-11-09 コネクサント システムズ,アイエヌシー. Method and apparatus for media access control in power line communication network system
JP2006101130A (en) * 2004-09-29 2006-04-13 Ibiden Co Ltd Manufacturing facilities
CN106200550A (en) * 2015-05-27 2016-12-07 安萨尔多能源英国知识产权有限公司 To the method for component processing and the device that performs the method on gang tool
CN106200550B (en) * 2015-05-27 2021-06-04 安萨尔多能源英国知识产权有限公司 Method for machining a component on a multi-axis machine tool and device for carrying out the method

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