JPS61270934A - Wireless signal transmission system - Google Patents

Wireless signal transmission system

Info

Publication number
JPS61270934A
JPS61270934A JP11255585A JP11255585A JPS61270934A JP S61270934 A JPS61270934 A JP S61270934A JP 11255585 A JP11255585 A JP 11255585A JP 11255585 A JP11255585 A JP 11255585A JP S61270934 A JPS61270934 A JP S61270934A
Authority
JP
Japan
Prior art keywords
data
transmission
bit
signal
wireless signal
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
JP11255585A
Other languages
Japanese (ja)
Inventor
Hiroshi Umeyama
梅山　寛
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP11255585A priority Critical patent/JPS61270934A/en
Publication of JPS61270934A publication Critical patent/JPS61270934A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To improve the reliability of transmission by sending a data pulse signal while keeping the pulse width per bit longer than the width of burst noise so as to correct a bit error over plural bits. CONSTITUTION:A transmission data added with an error check data from a transmission device 1 is sent in a form of a radio signal and a reception section 2a of a receiver 2 receives the radio signal and a signal processing section 2b applies an error check of the transmission data based on an error check data. In this case, a data signal (d) expanding the pulse width per one bit than the width of a burst noise is sent from the transmitter 1. Then even when the burst noise is generated, the bit error in the reception signal received by the receiver 2 due to the burst noise is only 1 bit as shown in figure (e) and the error is not given over plural bits.

Description

【発明の詳細な説明】 （技術分野） 本発明は、無線信号にてデータを伝送するワイヤレス信
号伝送システムに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a wireless signal transmission system that transmits data using wireless signals.

（背景技術） 従来、第２図（ａ）に示すように、無線信号にて伝送デ
ータの各ビット８１〜Ｂｎを伝送するこの種のワイヤレ
ス信号伝送システムにおいて、データパルス信号の各ビ
ット８１〜Ｂｎ当たりのパルス幅ＰＷが比較的狭いもの
であったので、第２図（ｂ）に示すようなバーストノイ
ズ（数１１８１！ｅ）が発生した場合、ビットの欠落あ
るいは変化によるビットエラーが複数箇所（例えば第２
図（ｃ）にＸ印を付した３ｍ所）で発生してしまい、簡
単な誤り訂正手段で対処できなくなるという問題があっ
た。すなわち、このような複数ビットに亘るビットエラ
ーを訂正可能にして伝送信頼性を良くするには多ビット
の誤りチェックデータを付加する必要が生じるとともに
、複雑な符号訂正処理を必要とするという問題があった
。(Background Art) Conventionally, as shown in FIG. 2(a), in this type of wireless signal transmission system in which each bit 81 to Bn of transmission data is transmitted by a wireless signal, each bit 81 to Bn of a data pulse signal is Since the percussion pulse width PW was relatively narrow, when burst noise (1181!e) as shown in Fig. 2(b) occurs, bit errors due to missing bits or changes occur in multiple places ( For example, the second
This problem occurs at the 3m point marked with an X in Figure (c)) and cannot be dealt with by simple error correction means. In other words, in order to be able to correct such bit errors over multiple bits and improve transmission reliability, it is necessary to add multi-bit error check data and also requires complex code correction processing. there were.

（発明の目的） 本発明は上記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、簡単な誤りチェックデータにて、伝
送信頼性を良くすることができ、しかも符号訂正処理が
簡単なワイヤレス信号伝送システムを提供することにあ
る。(Object of the Invention) The present invention has been made in view of the above points, and its purpose is to improve transmission reliability using simple error check data, and to provide code correction processing. The purpose is to provide a simple wireless signal transmission system.

（発明の開示） 第１図は本発明の一実施例を示すもので、送信器１から
誤りチェックデータを付加した伝送データを無線信号に
て送信し、受信器２の受信部２ａにて上記無線信号を受
信するとともに信号処理部２ｂにて伝送データのエラー
チェックを誤りチェックデータに基いて行うようにして
成る従来例と同様のワイヤレス信号伝送システムにおい
て、バースト性のノイズの幅よりも１ビット当たりのパ
ルス幅を長くしたデータパルス信号を送信器１から送信
するようにしたものであり、誤りチェックデータは、パ
リティビットあるいは１誤り訂正符号のような簡単なデ
ータとなっている。また、実施例にあっては、同一の伝
送データを複数回送信器１から送信することによって偽
送信頼性を向上させるようにしている。(Disclosure of the Invention) FIG. 1 shows an embodiment of the present invention, in which a transmitter 1 transmits transmission data to which error check data has been added as a wireless signal, and a receiver 2 receives the above data from a receiver 2a. In a wireless signal transmission system similar to the conventional example, in which a wireless signal is received and the signal processing unit 2b performs an error check on the transmitted data based on the error check data, the width of the burst noise is 1 bit smaller than the width of the burst noise. A data pulse signal with a longer per pulse width is transmitted from the transmitter 1, and the error check data is simple data such as a parity bit or a 1 error correction code. Furthermore, in the embodiment, the reliability of false transmission is improved by transmitting the same transmission data multiple times from the transmitter 1.

いま、実施例にあっては、第２図（ｂ）に示すようなバ
ースト性のノイズの幅よりも１ビット当たりのパルス幅
を長くした第２図（ｄ）のようなデータ信号を送信器１
から送信しているので、バースト性のノイズが発生した
場合にあっても、受信器２にて受信された受信信号にお
けるバースト性のノイズに起因するビットエラーは第２
図（ｅ）に示すように１ビットだけとなり、複数ビット
に亘ることがない。したがって、パリティビットあるい
は１訂正符号のような簡単な誤りチェックデータにて、
エラーチェックおよび符号訂正が可能となり伝送信頼性
を良くすることができることになる。In the present embodiment, the transmitter transmits a data signal as shown in FIG. 2(d) in which the pulse width per bit is longer than the width of burst noise as shown in FIG. 2(b). 1
Therefore, even if burst noise occurs, the bit error caused by the burst noise in the received signal received by receiver 2 is
As shown in Figure (e), it is only one bit and does not span multiple bits. Therefore, with simple error check data such as parity bits or 1-correction codes,
Error checking and code correction become possible, and transmission reliability can be improved.

また、この場合、信号処理部２ｂにおける符号訂正処理
が簡単（ハードお上りソフトが共に簡単）になって安価
なワイヤレス信号伝送システムを提供することができる
ようになっている。さらに、低ビットレート伝送となる
ので、）受信側の信号受信帯域を狭くすることができて
受信感度が向上し、伝送可能距離が長くなるとともに、
伝送信頼性も向上することになる。Furthermore, in this case, the code correction process in the signal processing section 2b is simple (both the hardware and the software are simple), making it possible to provide an inexpensive wireless signal transmission system. Furthermore, since it is a low bit rate transmission, it is possible to narrow the signal reception band on the receiving side, improving reception sensitivity and extending the possible transmission distance.
Transmission reliability will also be improved.

一方、実施例にありでは、＃ｌｌｓ図（ａ）に示すよう
に、送信器１から同一の伝送データを３回繰り返して送
信しているので、第３図（ｂ）に示すようなノイズ（バ
ースト性ノイズ、インパルスノイズ）が発生して１信号
系列にビットエラーが発生しても他の信号系列によって
正しいデータ伝送が可能となり、データ伝送がより確実
に行なえるようになっている。なお、実施例にあっては
低ビット伝送となっているので、インパルスノイズは容
易に除去できることは言うまでもない。したがって、実
施例にあっては伝送データの伝送信頼性が大幅に向上し
ており、双方向伝送によってデータ伝送が確実にされた
かどうかをチェックする必要がなく、システム構成が簡
略化されてシステムコストが安くなるようになっている
。On the other hand, in the embodiment, as shown in FIG. 3(a), the same transmission data is repeatedly transmitted from the transmitter 1 three times, so noise ( Even if a bit error occurs in one signal series due to occurrence of burst noise or impulse noise, correct data transmission is possible using other signal series, and data transmission can be performed more reliably. Note that in the embodiment, since low bit transmission is used, it goes without saying that impulse noise can be easily removed. Therefore, in the embodiment, the transmission reliability of the transmitted data is greatly improved, there is no need to check whether data transmission is ensured by bidirectional transmission, the system configuration is simplified, and the system cost is reduced. is becoming cheaper.

（発明の効果） 本発明は送信器から誤りチェックデータを付加した伝送
データを無線信号にて送信し、受信器の受信部にて上記
無線信号を受信するとともに信号処理部にて伝送データ
のエラーチェックを誤りチェックデータに基いて行うよ
うにして成るワイヤレス信号伝送システムにおいて、バ
ースト性のノイズの幅よりも１ビット当たりのパルス幅
を長くしたデータパルス信号を送信器から送信するよう
にトエラーが複数ビットに亘ることがないので、簡単な
誤りチェックデータにて、伝送信頼性を良くすることが
でき、しかも符号訂正処理が簡単で安価なワイヤレス信
号伝送システムを提供することができるという効果があ
る。(Effects of the Invention) The present invention transmits transmission data with error check data added from a transmitter as a wireless signal, receives the wireless signal at a receiving section of a receiver, and causes an error in the transmission data at a signal processing section. In a wireless signal transmission system in which checking is performed based on error check data, multiple errors occur so that the transmitter transmits a data pulse signal with a pulse width per bit longer than the width of burst noise. Since it does not cover bits, it is possible to improve transmission reliability with simple error check data, and furthermore, it is possible to provide an inexpensive wireless signal transmission system with simple code correction processing.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明一実施例のブロック回路図、＄２図およ
び第３図は同上の動作説明図である。 １は送信器、２は受信器、２ａは受信部、２ｂは信号処
理部である。FIG. 1 is a block circuit diagram of an embodiment of the present invention, and FIG. 2 and FIG. 3 are explanatory diagrams of the same operation. 1 is a transmitter, 2 is a receiver, 2a is a receiving section, and 2b is a signal processing section.

Claims (1)

【特許請求の範囲】[Claims] （１）送信器から誤りチェックデータを付加した伝送デ
ータを無線信号にて送信し、受信器の受信部にて上記無
線信号を受信するとともに信号処理部にて伝送データの
エラーチェックを誤りチェックデータに基いて行うよう
にして成るワイヤレス信号伝送システムにおいて、バー
スト性のノイズの幅よりも１ビット当たりのパルス幅を
長くしたデータパルス信号を送信器から送信するように
したことを特徴とするワイヤレス信号伝送システム。(1) The transmitter transmits the transmission data with error check data added as a wireless signal, the receiving section of the receiver receives the wireless signal, and the signal processing section checks the transmission data for error check data. A wireless signal transmission system based on the wireless signal transmission system, characterized in that a data pulse signal having a pulse width per bit longer than the width of burst noise is transmitted from a transmitter. transmission system.
JP11255585A 1985-05-25 1985-05-25 Wireless signal transmission system Pending JPS61270934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11255585A JPS61270934A (en) 1985-05-25 1985-05-25 Wireless signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11255585A JPS61270934A (en) 1985-05-25 1985-05-25 Wireless signal transmission system

Publications (1)

Publication Number Publication Date
JPS61270934A true JPS61270934A (en) 1986-12-01

Family

ID=14589593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11255585A Pending JPS61270934A (en) 1985-05-25 1985-05-25 Wireless signal transmission system

Country Status (1)

Country Link
JP (1) JPS61270934A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008517535A (en) * 2004-10-15 2008-05-22 アウェア， インコーポレイテッド DMT symbol repetition in the presence of impulse noise

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008517535A (en) * 2004-10-15 2008-05-22 アウェア， インコーポレイテッド DMT symbol repetition in the presence of impulse noise
US8913649B2 (en) 2004-10-15 2014-12-16 Tq Delta, Llc Impulse noise protection during initialization
US9621198B2 (en) 2004-10-15 2017-04-11 Tq Delta, Llc DMT symbol repetition in the presence of impulse noise
US11394485B2 (en) 2004-10-15 2022-07-19 Tq Delta, Llc DMT symbol repetition in the presence of impulse noise

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