JPH0235391A - Discriminating method of individual body - Google Patents

Discriminating method of individual body

Info

Publication number
JPH0235391A
JPH0235391A JP18354788A JP18354788A JPH0235391A JP H0235391 A JPH0235391 A JP H0235391A JP 18354788 A JP18354788 A JP 18354788A JP 18354788 A JP18354788 A JP 18354788A JP H0235391 A JPH0235391 A JP H0235391A
Authority
JP
Japan
Prior art keywords
data
station
master station
slave station
cpu
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
JP18354788A
Other languages
Japanese (ja)
Inventor
Shiro Kondo
史郎 近藤
Kikuo Kawasaki
川崎 紀久雄
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP18354788A priority Critical patent/JPH0235391A/en
Publication of JPH0235391A publication Critical patent/JPH0235391A/en
Pending legal-status Critical Current

Links

Landscapes

  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To improve the speed of processing by providing a subordinate station with a means to check up its own data area, by conducting detection of abnor mality before the return of data and by informing a master station of the result of detection. CONSTITUTION:A subordinate station 2 is mounted on a moving body 3, and data such as a discrimination code are written therein at a point P1 by a master station 1. The moving body 3 is conveyed from the point P1 to a point P2 and there the data in the subordinate station 2 is read out by a master station 1A, so as to discriminate the moving body 3. The subordinate station comprises a non-contact communication device 10, CPU 11 and memories 12A to 12C, and when a command is received from the master station through the non- contact communication device 10, the CPU 11 executes writing and reading of the data in and from the memories 12A to 12C in accordance with the command. When the subordinate station 2 receives the data to be written from the master station 1 at the point P1, accordingly, the CPU 11 checks up these data as to whether they contain a communication error or not, and if they are normal, the CPU writes these data in the memories 12A, 12B and 12C in a tripled manner.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、個体別に取り付けられた子局メモリの内容
を親局が非接触で読み出すことにより、個体の識別を行
なう個体識別方法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an individual identification method in which an individual is identified by a master station reading the contents of a slave station memory attached to each individual without contact.

〔従来の技術〕[Conventional technology]

従来の個体識別装置においては、親局が子局に対してデ
ータの書き込みを行った際に、交信が失敗してメモリ内
のデータが異常となっているにもかかわらず、子局がと
シ付けられている移動物体が親局の交信エリアからはず
れてしまう等して子局のデータ異常が修復不能となって
しまうことがあシ、この場合はメモリ異常としてデータ
の書き込みの時に子局が異常フラグをセットし、それを
(別の)親局からの読出要求時にいっしょに親局に通知
するようにしている。
In conventional individual identification devices, when a master station writes data to a slave station, even though communication has failed and the data in the memory is abnormal, the slave station writes data to the slave station. If a moving object attached to the slave station moves out of the communication area of the master station, data errors in the slave station may become unrecoverable.In this case, a memory error may occur when the slave station An abnormality flag is set, and this is notified to the master station at the same time as a read request from (another) master station.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

ところで、子局がとシ付けられている個体は移動するこ
とが多く、このため場合によっては子局が極めて過酷な
環境下におかれることがあジ、子局内のデータが破壊さ
れてしまう可能性があるが、子局のデータ異常フラグは
以前に行われたデータ書き込みが成功していれば、っt
b上記の如き交信失敗等によるメモリ異常が発生しない
限シは正常となっているため、親局は異常フラグがしデ
ータ破壊を検知することができない。このため、親局は
子局からのデータに異常がないが否かのチェツクを行う
必要があり、親局を含めたシステムが複雑となるだけで
なく、処理に時間が掛かると云う問題がある。
By the way, the individuals to which the slave stations are attached often move around, so in some cases the slave stations may be exposed to extremely harsh environments, and the data in the slave stations may be destroyed. However, if the previous data writing was successful, the data error flag of the slave station will be set.
b. Unless a memory abnormality occurs due to a communication failure as described above, the memory is normal, so the master station cannot detect data corruption due to the abnormality flag being raised. For this reason, the master station must check whether there are any abnormalities in the data received from the slave station, which not only complicates the system including the master station, but also takes time to process. .

したがって、この発明は子局側でデータの異常を検出で
きるようにして親局側の負担を軽減し、信頼性を高める
ことを目的とする。
Therefore, an object of the present invention is to enable the slave station to detect data abnormalities, thereby reducing the burden on the master station and increasing reliability.

〔課題を解決するための手段〕[Means to solve the problem]

子局に自分のデータ領域をチェックするための手段を持
たせ、子局が親局からデータの続出要求を受けた時に、
データのチェックによる異常検出を親局に対してデータ
の返送を行う前に行い、そのチェック結果を親局へ通知
する。
The slave station is equipped with a means to check its own data area, and when the slave station receives a continuous request for data from the master station,
Abnormality detection is performed by checking the data before sending the data back to the master station, and the result of the check is notified to the master station.

〔作用〕[Effect]

データ返送時に親局へ通知されるデータの異常検出結果
は、子局のデータについて前回の受信によりデータが書
き込まれてから現在の交信が行われるまでの異常に関す
る情報を反映できるものとなる。これによって、子局が
移動している間に発生したデータの破壊等の検出が可能
となる。
The data anomaly detection result notified to the master station when data is returned can reflect information regarding anomalies in the slave station's data from the time the data was written in the previous reception until the current communication. This makes it possible to detect data destruction that occurs while the slave station is moving.

〔実施例〕〔Example〕

第1図はこの発明の詳細な説明するだめのタイミングチ
ャート、第2図はこの発明が適用される個体識別システ
ム例を示す概要図、第6図は子局の内部構成を示すブロ
ック図でちる。
Fig. 1 is a timing chart for detailed explanation of this invention, Fig. 2 is a schematic diagram showing an example of an individual identification system to which this invention is applied, and Fig. 6 is a block diagram showing the internal configuration of a slave station. .

第2図に示すように、移動体6には子局2が取り付けら
れておシ、こ匁ではP1ポイントにて親局1によシ例え
ば識別コード(ID)等のデータが書き込まれる。そし
て、移動体6はP1ポイントからP2ポイントへと搬送
され、そこで子局2のデータが親局1Aによシ読み出さ
れ、移動体3の識別が行われる。
As shown in FIG. 2, a slave station 2 is attached to the mobile body 6, and data such as an identification code (ID) is written to the master station 1 at the P1 point. Then, the mobile body 6 is transported from the P1 point to the P2 point, where the data of the slave station 2 is read out by the master station 1A, and the mobile body 3 is identified.

子局は例えば第3図の如く、非接触交信装置10、処理
装置(CPU)11およびメモリ12A〜12Cよシ構
成され、非接触交信装置1oを介して親局からのコマン
ドを受信すると、そのコマンドに応じてCPU11はメ
モリ12A〜12Cに対してデータの書き込み、読み出
しを行う。
For example, as shown in FIG. 3, the slave station is composed of a contactless communication device 10, a processing unit (CPU) 11, and memories 12A to 12C, and when it receives a command from the master station via the contactless communication device 1o, it processes the command. In response to commands, the CPU 11 writes and reads data into and from the memories 12A to 12C.

したがって、第2図のP1ポイントで子局2が親局1か
ら書き込むべきデータを受信すると、CPU11はこれ
らのデータに交信エラーがないか否かをチェックし、正
常ならばそのデータをメモリ12A、12B、12Cに
6重に書く。このことによシ、メモ1J12A〜12C
には同一のデータが記憶される。
Therefore, when the slave station 2 receives the data to be written from the master station 1 at point P1 in FIG. Write six times on 12B and 12C. For this reason, Memo 1J12A-12C
The same data is stored in .

一方、第2図において移動体3がポイントP2へ移動す
ると、親局1Aは子局2からデータを読み出す。その手
順を第1図に示す。すなわち、子局が親局から送信コマ
ンドを受信すると、まずコマンドの論理や交信エラーの
有無をチェックする(第1図(ハ)のコマンド受信処理
参照)。これが正しいと、CPU11はデータの異常検
出を行う。その方法としては、例えばデータに水平、垂
直パリティやCRCコードを付加しておき、これらチェ
ックコードをもとに異常を検出する方法や、メモリ内に
同一データを複数記憶しておき、それらを多数決判定し
て異常を検出する方法等色々考えられるが、こ〜では子
局メモリ内に同一データを3重に記憶しておき、多数決
判定によってデータ異常を検出すること&する。このた
め、子局のメモリは第3図の如く、メモリ12A〜12
CKよ′り3重化されている。なお、CPUがこのよう
な多数決判定を行っている間、子局は第1図(ロ)の如
きリーディング信号を送信する。これは子局→親局への
交信を安定に行うためのもので、親局の非接触交信装置
の受信出力をマーク状態に保つものでちる。
On the other hand, when the mobile body 3 moves to point P2 in FIG. 2, the master station 1A reads data from the slave station 2. The procedure is shown in FIG. That is, when the slave station receives a transmission command from the master station, it first checks the logic of the command and the presence or absence of a communication error (see command reception processing in FIG. 1(c)). If this is correct, the CPU 11 performs data abnormality detection. Methods for this include, for example, adding horizontal and vertical parity and CRC codes to the data and detecting abnormalities based on these check codes, or storing multiple pieces of the same data in memory and having them determined by a majority vote. Various methods can be considered for determining and detecting abnormalities, but in this case, the same data is stored in triplicate in the slave station memory, and data abnormalities are detected by majority decision. Therefore, the memory of the slave station is as shown in FIG.
It is triplexed from CK. Incidentally, while the CPU is making such a majority decision, the slave station transmits a leading signal as shown in FIG. 1(b). This is to ensure stable communication from the slave station to the master station, and is intended to keep the reception output of the contactless communication device of the master station in the marked state.

多数決判定では3者とも一致した時は正常として、第1
図(ハ)のデータ送信処理にて一致したデータを送信し
、異常データフラグ、異常発生通知フラグとも正常とし
て異常フラグ送信処理にょシ親局に正常であることを通
知する。3者のうち1者だけがくい違い残りの2者が一
致した場合は、2者一致したデータを送信する。異常通
知については異常データフラグは正常とし、異常発生通
知フラグは異常発生として親局へ通知する。この場合、
親局はデータについては正常としてとシ扱う。
In the majority decision, if all three parties agree, it is considered normal, and the first
In the data transmission process shown in FIG. 3(c), the matched data is transmitted, and both the abnormal data flag and the abnormality occurrence notification flag are determined to be normal, and the abnormality flag transmission process is notified to the master station that they are normal. If only one of the three differs and the remaining two match, the two match data is transmitted. Regarding abnormality notification, the abnormality data flag is set as normal, and the abnormality occurrence notification flag is notified to the master station as abnormality occurrence. in this case,
The master station treats the data as normal.

3者ともくい違った場合は、子局はデータ送信処理によ
シロ者のうちの1つをダミーとして送信し、異常通知は
異常データフラグ、異常発生通知フラグとも異常として
親局へ通知する。
If all three are significantly different, the slave station transmits one of the blanks as a dummy through data transmission processing, and notifies the master station that both the abnormal data flag and the abnormal occurrence notification flag are abnormal.

6一 親局は異常発生通知フラグが異常である場合に、子局の
全データを読み出してメモリ破壊の内容を詳細に知るこ
とができる。また、発生回数のカウントを行なって異常
発生頻度を解析することもできる。さらに、親局は所定
以上の頻度でデータ異常が発生する場合は、ユーザーに
使用環境の改善を指示することができる。これによシ、
適切な使用環境を整備することが可能となジ、システム
全体の信頼性向上に役立てることが可能となる。
6. When the abnormality occurrence notification flag is abnormal, the master station can read all the data of the slave station and know the contents of memory destruction in detail. It is also possible to analyze the frequency of abnormality occurrence by counting the number of occurrences. Furthermore, if data abnormalities occur more frequently than a predetermined frequency, the master station can instruct the user to improve the usage environment. For this,
By creating an appropriate usage environment, it is possible to improve the reliability of the entire system.

また、子局についてもデータ異常が何回も発生したもの
は、ストレスが多く掛かったものと判断できるため、完
全に故障する前に交換等のメンテナンスが可能となり、
システムの信頼度を上げることができる。
In addition, if a slave station has experienced data abnormalities many times, it can be determined that it has been under a lot of stress, so maintenance such as replacement can be performed before it completely breaks down.
System reliability can be increased.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、親局は子局の異常フラグによって、子
局の移動中に受けたストレス等で発生したデータの破壊
等を知ることができるため、親局は送られてくるデータ
の論理チェックによυデータ破壊を発見する必要がなく
なり、親局を含めたシステムの簡略化及び処理スピード
の向上が実現できる。また、この異常フラグが立つとい
うことは、子局の移動ルートに子局に対してストレスを
与える悪環境区域があることを示唆しており、したがっ
て本フラグを基に現場のストレス要因の解析や子局のメ
ンテナンスを実行することができ、システムの信頼性向
上に役立てることができる。
According to the present invention, the master station can learn from the abnormality flag of the slave station whether data has been destroyed due to stress, etc. while the slave station is moving. It is no longer necessary to detect υ data corruption through checking, and the system including the master station can be simplified and the processing speed can be improved. In addition, the fact that this abnormality flag is set indicates that there is a bad environmental area on the movement route of the slave station that causes stress to the slave station. Therefore, this flag can be used to analyze the stress factors at the site. Maintenance of slave stations can be performed, which can be used to improve system reliability.

さらに、メモリの異常チェックのために、実施例のよう
にメモリを多重化すれば、多重にしたメモリが全てくい
違うように破壊されない限シ親局は正しいデータを得る
ことができるため、データの信頼性が向上する。
Furthermore, if the memories are multiplexed as in the embodiment to check for memory abnormalities, the master station can obtain correct data as long as all the multiplexed memories are not destroyed in the same way. Improved reliability.

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

第1図はこの発明の詳細な説明するだめのタイミングチ
ャート、第2図はこの発明が適用される個体識別システ
ム例を示す概要図、第6図は子局の内部構成を示すブロ
ック図でちる。 符号説明 1.1A・・・・・・親局、2・・・・・・子局、6・
・・・・・移動体、4.4A・・・・・・制御器、10
・・・・・・非接触交信装置、11・・・・・・処理装
置(CPU)、12A〜12C・・・・・・メモリ。
Fig. 1 is a timing chart for detailed explanation of this invention, Fig. 2 is a schematic diagram showing an example of an individual identification system to which this invention is applied, and Fig. 6 is a block diagram showing the internal configuration of a slave station. . Code explanation 1.1A... Master station, 2... Slave station, 6.
...Moving object, 4.4A ...Controller, 10
...... Non-contact communication device, 11... Processing unit (CPU), 12A to 12C... Memory.

Claims (1)

【特許請求の範囲】 少なくともメモリおよび非接触交信手段をもつ子局と、
少なくとも非接触交信手段をもつ親局とを設け、該親局
で移動物体に取り付けられている子局のメモリ内容を非
接触に読み出して個体を識別すべく、 前記子局に自己のデータ内容をチェックするためのチェ
ック機能を付与し、データを送信する前に内部データの
異常検出をしてその結果を親局に通知することを特徴と
する個体識別方法。
[Claims] A slave station having at least a memory and a contactless communication means;
A master station having at least a contactless communication means is provided, and the master station reads out the memory contents of the slave station attached to the moving object in a contactless manner and transmits the data contents of the slave station to the slave station in order to identify the individual. An individual identification method characterized by providing a check function for checking, detecting anomalies in internal data before transmitting the data, and notifying the master station of the results.
JP18354788A 1988-07-25 1988-07-25 Discriminating method of individual body Pending JPH0235391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18354788A JPH0235391A (en) 1988-07-25 1988-07-25 Discriminating method of individual body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18354788A JPH0235391A (en) 1988-07-25 1988-07-25 Discriminating method of individual body

Publications (1)

Publication Number Publication Date
JPH0235391A true JPH0235391A (en) 1990-02-05

Family

ID=16137719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18354788A Pending JPH0235391A (en) 1988-07-25 1988-07-25 Discriminating method of individual body

Country Status (1)

Country Link
JP (1) JPH0235391A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169894A (en) * 1981-04-13 1982-10-19 Fuji Electric Co Ltd Abnormality notifying system
JPS622746A (en) * 1985-06-28 1987-01-08 Toshiba Corp On-line system
JPS6250677A (en) * 1985-08-30 1987-03-05 Toshiba Corp Distribution control system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169894A (en) * 1981-04-13 1982-10-19 Fuji Electric Co Ltd Abnormality notifying system
JPS622746A (en) * 1985-06-28 1987-01-08 Toshiba Corp On-line system
JPS6250677A (en) * 1985-08-30 1987-03-05 Toshiba Corp Distribution control system

Similar Documents

Publication Publication Date Title
US3950729A (en) Shared memory for a fault-tolerant computer
CA1307850C (en) Data integrity checking with fault tolerance
CN102135925B (en) Method and device for detecting error check and correcting memory
US3582880A (en) Data error correction by inversion storage
US4165533A (en) Identification of a faulty address decoder in a function unit of a computer having a plurality of function units with redundant address decoders
JP2012133456A (en) Storage device and control method of storage device
JPH0235391A (en) Discriminating method of individual body
US11921577B2 (en) Semiconductor storage element, semiconductor storage device and system-on-chip
CN104914784A (en) Numerical controller
JPH04181823A (en) Data carrier
JPH0715497B2 (en) Individual identification method
JPH0535616A (en) Data transfer system
JPH0787425B2 (en) Individual identification method
JPH05297128A (en) Individual body distinguishing device
JP2645021B2 (en) Bus abnormality inspection system
JPH0324601A (en) Control method
JPH0689236A (en) Random access memory monitor circuit
SU658592A1 (en) Apparatus for registering and transmitting information
KR100246526B1 (en) Automatic detector for communication error and compensation system and method thereof
JPS61224044A (en) Error check circuit
CN117242441A (en) Data transmission circuit, chip and terminal
JPH03163642A (en) Memory abnormality detecting system
JPS61253564A (en) Storage device
JPS62242287A (en) Ic card
JPH02188852A (en) Data processor