JPH05110542A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPH05110542A
JPH05110542A JP26668491A JP26668491A JPH05110542A JP H05110542 A JPH05110542 A JP H05110542A JP 26668491 A JP26668491 A JP 26668491A JP 26668491 A JP26668491 A JP 26668491A JP H05110542 A JPH05110542 A JP H05110542A
Authority
JP
Japan
Prior art keywords
data
case
again
signal
change
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
JP26668491A
Other languages
Japanese (ja)
Inventor
Tokuji Takada
徳二 高田
Original Assignee
Nec Corp
日本電気株式会社
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 Nec Corp, 日本電気株式会社 filed Critical Nec Corp
Priority to JP26668491A priority Critical patent/JPH05110542A/en
Publication of JPH05110542A publication Critical patent/JPH05110542A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To quicken a discrimination processing of retransmitting data by transmitting simultaneously the retransmitting data and data varied again at the time of retransmitting the data, and also, adding a discriminating signal.
CONSTITUTION: When data is varied, varied data is transmitted, and in the case a reception confirming signal generated from a receiving side arrives within a certain determined confirmation time, transmission of the data is completed, and in a first case the reception confirming signal does not arrive, and also, the data is not varied again, the data is retransmitted. Subsequently, in a second case the reception confirming signal does not arrive, and the data is varied again, the data is retransmitted, and thereafter, the data varied again is transmitted. In such a state, in a first case, the data and the discriminating signal are re-transmitted by the same packet, and in a second case, the data, the data varied again and the discriminating signal are transmitted by the same packet. In such a way, a transmission timing of the latest data is not delayed, and also, a discrimination processipng of retransmitting data can be quickened by the discriminating signal.
COPYRIGHT: (C)1993,JPO&Japio

Description

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

【0001】 [0001]

【産業上の利用分野】本発明は、データ伝送方式に関し、特に電力の監視制御システムに使用されるパケット方式によるデータ伝送方式に関する。 The present invention relates to relates to a data transmission system, to a data transmission method according to the packet type that is particularly used for power monitoring and control system.

【0002】 [0002]

【従来の技術】従来、この種のデータ伝送方式はデータの発生の都度、即ちデータが変化した時に変化したデータを伝送しており、この時に受信側よりの受信確認信号の到着をもって着信を確認しデータの伝送を完結している。 Conventionally, each of such data transmission scheme of the data generation, i.e., the data has to transmit the changed data when the change, confirm the incoming with a arrival acknowledgment signal from the receiving side when the and it has completed the transmission of data. この受信確認信号がある定められた確認時間(以下ACK=Acknouledgeタイムと称する)以内に到着しなかった場合はデータを再送するが、このAC While retransmitting the data if you did not arrive within the acknowledgment signal is a defined confirmation time (hereinafter referred to as ACK = Acknouledge time), this AC
Kタイム中にデータの再度の変化がなかった場合はそのまま再送するが、ACKタイム中にデータに再度の変化があった場合は前のデータを再送しこの後で再度変化後のデータを伝送するか或は再度変化後のデータのみを伝送している。 If there is no re-change data during K time resend it, but if there is a change again to the data during ACK time to transmit data after the change again after this resend previous data or is transmitting only the data after the change again, or. 尚、データ伝送方式としては上述した方式以外に定周期で全データを伝送する方式もある。 As the data transmission method is also a system for transmitting all the data at a constant period in addition to method described above.

【0003】 [0003]

【発明が解決しようとする課題】このように従来例においては、ACKタイムアウト時にデータに再度の変化があった場合、前のデータを再送した後に再度変化後のデータを送信しているので、データが連続して変化する場合は伝送タイミングが遅れてしまうという問題がある。 BRIEF Problem to be Solved] In this way conventional example, when there is again a change in the data when ACK timeout since the transmission data before the data after the change again after retransmitting the data there is a problem that vary continuously in delayed transmission timing.
又再度変化後のデータのみを送信する方式も受信側において再度変化後のデータであるという識別が難かしくなり処理に時間がかかるという問題がある。 Also there is a problem that re scheme of transmitting only the data after the change is identified that also data after the change again at the receiving side takes a long time to fire Kashiku be processed.

【0004】 [0004]

【課題を解決するための手段】本発明のデータ伝送方式はデータが変化した時に変化後のデータを送信しある定められた確認時間以内に受信側より発っせられる受信確認信号の到着があった場合は前記データの送信を完結し、前記受信確認信号の到着がなくかつ前記データに再度の変化がなかった第1の場合は前記データを再送し、 Data transmission method of the present invention SUMMARY OF] had arrived acknowledgment signal is brought after leaving from the receiving side within the confirmation time determined in transmit data after the change when the data changes If completed the transmission of the data, if the first was no change in again and the data is no arrival of the acknowledgment signal retransmits the data,
前記受信確認信号の到着がなく前記データに再度の変化があった第2の場合は前記データを再送しその後で再度変化後のデータを送信するパケット方式によるデータ伝送方式において、前記第1の場合は前記データと識別信号とを同一パケットで再送し、前記第2の場合は前記データと前記再度変化後のデータと前記識別信号とを同一パケットで送信する。 In the data transmission method according to the packet type is the second case of transmitting the data after the change again then retransmit the data arriving there is the data again changes without the acknowledgment signal, the first case resends said data and identification signals in the same packet, the second case sends said identification signal and data after the change again and the data in the same packet.

【0005】 [0005]

【実施例】次に本発明の一実施例について図を参照して説明する。 Will be described with reference to the drawings an embodiment of EXAMPLES The present invention will now. 図1は本実施例の信号送受信手順を示すシーケンスである。 Figure 1 is a sequence showing a signal transmission and reception procedure of this embodiment. 図2は本実施例の送信信号の伝送フォーマットを示す構成図である。 Figure 2 is a block diagram showing a transmission format of the transmission signals of the present embodiment. 図1において、データ1が発生した場合、受信側装置にこのデータ1を伝送し、A In Figure 1, when data 1 is generated, the data 1 is transmitted to the receiving side apparatus, A
CK信号を受信したため正常に終了する。 Upon successful completion due to receiving a CK signal. 次にデータ2 Next, the data 2
が発生したため、受信側装置にデータ2を伝送したが、 Because There occurred, but transmits data 2 to the receiving device,
ACK信号が受信できず再送を行った。 ACK signal went retransmission can not be received. このとき、データ2は再度の変化が発生していないため、パケットの識別ビットは“0”として再送する。 At this time, since the data 2 is not changed again occurs, the identification bit of the packet is retransmitted as a "0". 受信側装置は、識別ビットの“0”を識別してデータ2に対する処理を行う。 The receiving device performs processing for data 2 identifies the "0" of the identification bits.

【0006】データ3が発生した場合、受信側装置にデータ3を伝送したが、ACK信号が受信できずにこのとき、データ3は再度の変化を発生しデータ4となったので、パケットの識別ビットを“1”としてデータ3とデータ4とを一緒にして再送する。 [0006] If the data 3 is generated, but transmits data 3 to the receiving apparatus, this time can not be received ACK signals, the data 3, so was the data 4 to generate a change again, the identification of the packet retransmits the combined data 3 and data 4 as "1" bit. 受信側装置は、識別ビットの“1”を識別して、システムに応じた処理を行う。 Receiving device identifies the "1" of the identification bits, performs processing according to the system. 尚、上述した各ケースの信号の伝送フォーマットは図2に示す通りである。 The transmission format for each case of the signals described above are shown in FIG.

【0007】 [0007]

【発明の効果】以上説明したように本発明は、データを再送する時に再送データと再度変化後のデータとを同時に伝送しかつ識別信号を付加しているので、最新データの伝送タイミングが遅れることがなくなりかつ識別信号により再送データの識別処理が早まるという効果がある。 The present invention described above, according to the present invention is, since the transmission retransmitted data again after changing the data at the same time and by adding the identification signal when data is retransmitted, the transmission timing of the latest data is delayed there is an effect that disappears and identification process of the retransmission data by the identification signal is accelerated.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の一実施例の信号送受信手順を示すシーケンスである。 1 is a sequence showing a signal transmission and reception procedure of an embodiment of the present invention.

【図2】本発明の一実施例の伝送フォーマットを示す構成図である。 2 is a block diagram showing a transmission format of an embodiment of the present invention.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl. 5識別記号 庁内整理番号 FI 技術表示箇所 H04Q 9/00 K 7170−5K ────────────────────────────────────────────────── ─── front page continued (51) Int.Cl. 5 in identification symbol Agency Docket No. FI art display portion H04Q 9/00 K 7170-5K

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 データが変化した時に変化後のデータを送信しある定められた確認時間以内に受信側より発っせられる受信確認信号の到着があった場合は前記データの送信を完結し、前記受信確認信号の到着がなくかつ前記データに再度の変化がなかった第1の場合は前記データを再送し、前記受信確認信号の到着がなく前記データに再度の変化があった第2の場合は前記データを再送しその後で再度変化後のデータを送信するパケット方式によるデータ伝送方式において、 前記第1の場合は前記データと識別信号とを同一パケットで再送し、前記第2の場合は前記データと前記再度変化後のデータと前記識別信号とを同一パケットで送信することを特徴とするデータ伝送方式。 1. A case where data had arrived acknowledgment signal is brought after leaving from the receiving side within and is confirmed stipulated time transmitting data after the change when the change is completed the transmission of the data, the If first there was no change in again and the data is no arrival of the received confirmation signal retransmits the data, if the second arrival of the acknowledgment signal was again changes to the data rather than in the data transmission method according to the packet type for transmitting data after the change again then retransmit the data, the first case to retransmit said data and identification signals in the same packet, the second case is the data data transmission method, wherein the transmitting the data and the identification signal after the change again the same packets.
JP26668491A 1991-10-16 1991-10-16 Data transmission system Pending JPH05110542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26668491A JPH05110542A (en) 1991-10-16 1991-10-16 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26668491A JPH05110542A (en) 1991-10-16 1991-10-16 Data transmission system

Publications (1)

Publication Number Publication Date
JPH05110542A true JPH05110542A (en) 1993-04-30

Family

ID=17434261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26668491A Pending JPH05110542A (en) 1991-10-16 1991-10-16 Data transmission system

Country Status (1)

Country Link
JP (1) JPH05110542A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0799692A (en) * 1993-09-28 1995-04-11 Nec Corp Data monitoring and controlling device
US6092109A (en) * 1997-06-30 2000-07-18 Nec Corporation Information matching system and its matching method for matching information between terminal equipment connected via network
JP2006087124A (en) * 2004-09-16 2006-03-30 Internatl Business Mach Corp <Ibm> Envelope packet architecture for broadband engine
JP2009112016A (en) * 1997-11-13 2009-05-21 Qualcomm Inc Method and apparatus for time efficient retransmission using symbol accumulation
JP2012249647A (en) * 2011-05-31 2012-12-20 Sankyo Co Ltd Game machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0799692A (en) * 1993-09-28 1995-04-11 Nec Corp Data monitoring and controlling device
US6092109A (en) * 1997-06-30 2000-07-18 Nec Corporation Information matching system and its matching method for matching information between terminal equipment connected via network
JP2009112016A (en) * 1997-11-13 2009-05-21 Qualcomm Inc Method and apparatus for time efficient retransmission using symbol accumulation
US8438447B2 (en) 1997-11-13 2013-05-07 Qualcomm Incorporated Method and apparatus for time efficient retransmission using symbol accumulation
JP2006087124A (en) * 2004-09-16 2006-03-30 Internatl Business Mach Corp <Ibm> Envelope packet architecture for broadband engine
US7975064B2 (en) 2004-09-16 2011-07-05 International Business Machines Corporation Envelope packet architecture for broadband engine
JP2012249647A (en) * 2011-05-31 2012-12-20 Sankyo Co Ltd Game machine

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