JPS58119060A - Fault recovery detector for central processing unit - Google Patents
Fault recovery detector for central processing unitInfo
- Publication number
- JPS58119060A JPS58119060A JP56215125A JP21512581A JPS58119060A JP S58119060 A JPS58119060 A JP S58119060A JP 56215125 A JP56215125 A JP 56215125A JP 21512581 A JP21512581 A JP 21512581A JP S58119060 A JPS58119060 A JP S58119060A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- processing unit
- value
- central processing
- program
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0751—Error or fault detection not based on redundancy
- G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
- G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08735—Polymers of unsaturated cyclic compounds having no unsaturated aliphatic groups in a side-chain, e.g. coumarone-indene resins
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- General Engineering & Computer Science (AREA)
- Debugging And Monitoring (AREA)
Abstract
Description
【発明の詳細な説明】
１１？発明の技術分野
本＃、＃４は中央処理ｉｋ皺が動作中プログラム１：関
する異常動作が発生し、目動作出した「！１数ケ計掬す
るａ會に関する。[Detailed Description of the Invention] 11? Technical Field of the Invention Books # and #4 relate to a meeting in which an abnormal operation related to program 1: occurred while the central processing unit was operating, and an eye movement occurred.
Ｑ１技術の背景
システムの動作プログラムが止常（二動作しているかど
うかな監視する方法の一つに〜オツチドッグタイマ１９
を便用することが行なわれ又（する。Q1 Background of the technology One of the ways to monitor whether the operating program of the system is stopped (2) is running - Otsuchidog timer 19
It is practiced to make use of (to do).
システムがノイズ等のため偶発時（二全生しだ外電が原
因でプログラムの１Ｉｈ７１：が起ったとぎ装置を自動
復１日さすることがでさる。１１図（二ｅ略的に示すウ
ォッチドッグタイマＣ：ＭＬ’て中央処理装＠ ｏｐｔ
ｒのアクセスによりリセットされるタイマチ１Ａン設け
ている。If the system is accidentally damaged due to noise, etc. (1I h71: of the program occurs due to an external power line), the sharpening device can be automatically restored for 1 day. Dog timer C: ML'te central processing unit @ opt
A timer 1A is provided which is reset by access of r.
タイマチ讐のリセットはプログラムの通常処瑯ルーチン
の中で行なわれ、９セツトされる場合の流れ１を第２図
に示す。しかしプログラムカβ異常動作を始めた場合は
タイマをアクセスしてリセットすることがない定め、予
め設定した時間を超えるので、そのときタイマは中央処
理装置１０７０に割込みを上げ、ζ１１込処理が行なわ
れたことにより、動作な書出さする。The reset of the timer is carried out in the normal processing routine of the program, and flow 1 when the timer is set is shown in FIG. However, if the program begins to operate abnormally, the timer will not be accessed and reset, and the preset time will be exceeded. At that time, the timer will issue an interrupt to the central processing unit 1070, and ζ11 processing will be performed. By doing so, you can write out the file in a working manner.
■質素抄術と問題点
ウォッチドッグタイマ舎工装置ｌン蕉入局に設置しであ
る場合などシステムを自動的に運転さゼである所では有
効であるがプログ２ムの異常動作発生回数は記録されな
い。即ちグログラムが華走しタイマにより自＊＋＊旧す
ることが、プログラムに一寸した欠陥が元来あって発生
していることが、偶発的に起ったためで特に原因がない
ことが判断できない。■Frugality and problems Watchdog timer construction equipment is effective in places where the system is not operated automatically, such as when installed in a station, but it records the number of times abnormal operation occurs in the program. Not done. In other words, it cannot be determined that the fact that the program runs out of date and becomes obsolete due to the timer is due to an accidental occurrence due to an original defect in the program, and that there is no particular cause.
＋４１発明の目的
本発明の目的はウォッチドッグタイマが動作し、中央処
理装置が自動復旧した回数ン離れた場所において針側で
さる装＆な提供すること１：ある。+41 OBJECTS OF THE INVENTION An object of the present invention is to provide a system for monitoring the number of times a watchdog timer operates and a central processing unit automatically recovers on the needle side at a remote location.
＋５１発明の構成
本発明の構成は中央部ｆ！！装置からのアクセスにより
リセットされるタイマを設け、所定特間以円Ｃ：リセッ
トされないとき中央処理装置に対し割込みン上げるウォ
ッチドッグタイマと、ｌｆ９オッチドッグタイマが割込
みを上げた回数を計数するカウンタと、該カウンタの匍
ケ上位装置へ連絡する通信装置とを具−することである
。+51 Structure of the Invention The structure of the present invention is the central part f! ! A timer that is reset by access from the device is provided, and a watchdog timer that raises an interrupt to the central processing unit when it is not reset after a predetermined period of time, and a counter that counts the number of times the lf9 watchdog timer raises an interrupt. , and a communication device for communicating with the upper level device of the counter.
−発明の実施例
第３−は本発明の一実施例１示すブロックηであって、
親局Ｍｅには中央制ａ曹ｔｉＩＣＣ，メモ５ｙＭｅ’Ｗ
ｉ遍列変攬装置８ρ、り′僧副器シＯＤＩＭ、入出力制
御装置Ｉｏｏを設け１表示袈負Ｄ８Ｐな接続している。-Embodiment 3 of the invention- is a block η shown in Embodiment 1 of the invention,
Main station Me is central system asotiICC, memo 5yMe'W
A parallel transformation device 8ρ, an auxiliary device ODIM, and an input/output control device Ioo are provided and connected to each other.
子局Ｓ８は親局Ｍ８と回線〒Ｌで′Ｊ＃続され、中央処
理製＆０Ｐｔ７．メモリＭＭ、［並列Ｗ戸装置Ｖア、資
復１器シ○ＤＩ輩。The slave station S8 is connected to the master station M8 by line 〒L, and is connected to the central processing unit &0Pt7. Memory MM, [parallel W door device V a, recovery 1 device S○DI guy.
入出力制ａｍ置ｒｏｅ、ウォッチドッグタイマＷＤテ、
カウンタＣＷＴとその１ｓｆｉＡＩＰｙｔ設け、センナ
１１８を接続している。カウンタ（’ＮＴにはクロック
入力端子ｃ′Ｌ工’ｓ ｔ ’Ｗｓ ｆＡ一端子Ｖｏｏ
、プリセットイネーブル端子７Ｂ！、カウンタ帥出力端
子０テ０が設けられているｎなおこのカウンタ０）ｆテ
は子局の中天処理装置ＩＩＬｃｐ’ｒｙが動作てるソフ
トウェアによってはカウント餉ンｔ！＋込むことができ
ない１１＃成としておく。それにプログラム暴１１ＩＬ
＃Ｐにカウンタの１１１ Ｖ ４に廉さｎないようにす
るためである。なおりウンデＯＮ〒の電源１は蓄電池等
−：よるバックアップ形式なとり１ｗＭ用電源の停電時
においてもカウンタＯＭＴの量は保持される構成として
おく。そしてカウント噛をＶ）期化することを工、動作
電源な立上げたとき、長期停電でバックアップ電源が継
持できなくなってから醤電なさせるときにのみ行なうよ
うにして１通常はエンドレスにカウントして行くのその
ためウォッチドッグタイマＷＤデが従来の方法でプログ
ラムの異常動作を検出し、中央処理装＊ ｃｐｔｒに割
込みを上げたとき、カウンタ０１丁はその信号をグロッ
クとしてカウントして行く。そのためプクグラム異常動
作の発生した回数は親局Ｍ８の中央制御装＠００が指令
すると各局の習醤胸装置を通信装置の主要部として子局
ｍｅのカウンタＣＮＴ偉を置ぐ軸普する。更ＣＨＩＮ輩
Ｂの中天制御装置００内に設ける装置として、単位＃Ｆ
間当りのカウンタＯｗ〒の萱化佃ｔｋ：鯛べるものを設
ける。そして単位時間毎４＝＠告されたカウンタの値が
予め設置した数と比較してχさな埴であるとさ、簀麹な
発する構成とするとき、その間にＪ！４富のあったこと
を離れｔ所で遺蓚に判断でさる。Input/output control am setting roe, watchdog timer WD te,
A counter CWT and its 1sfiAIPyt are provided, and a sensor 118 is connected thereto. Counter ('NT has clock input terminal c'L's t'Ws fA one terminal Voo
, preset enable terminal 7B! , a counter output terminal 0) is provided, and this counter 0) may not be counted depending on the software on which the central processing unit IILcp'ry of the slave station is running. It is set to 11# which cannot be inserted. And program violence 11IL
This is to prevent #P from incurring 111 V 4 of the counter. The power source 1 of the Naori Unde ON is a backup type such as a storage battery, etc. Even in the event of a power outage of the Natori 1wM power source, the amount of the counter OMT is maintained. Then, the count is set to V), and it is done only when the operating power supply is turned on and when the backup power supply cannot be sustained due to a long-term power outage, and when the power supply is turned off. Therefore, when the watchdog timer WD detects an abnormal operation of the program using the conventional method and raises an interrupt to the central processing unit *cptr, the counter 01 counts the signal as a clock. Therefore, when the central control unit @00 of the master station M8 issues a command, the number of times the program abnormal operation occurs is determined by using the counter CNT of the slave station me as the main part of the communication device in each station. Further, as a device installed in the Chuten control device 00 of CHIN-guy B, unit #F
Kaya Tsukuda tk of the counter Ow〒: Set up something that can be eaten. Then, if the value of the counter notified by 4=@ is smaller than the preset number per unit time, and when the configuration is set to emit a large amount of air, during that time J! 4 I left the place where I was rich and decided to leave it behind.
ｍ発明の効果
この五うＣ：して本発明によると比較旧簡易な装置で中
央処理装置におけるプログラムの異常動作が発生し、自
動伽旧をしたことについてその＠数ｖ婆嘉にチェックす
ることがでさるから、偶発的なものが、プログラムに弁
り欠陥が残っていたかを容ネー二判別でき遠方監初する
こと（；有効である。Effects of the Invention 5C: According to the present invention, when an abnormal operation of a program in the central processing unit occurs in a simple device compared to the old one, it is possible to check the automatic obsolescence. Therefore, it is effective to perform remote monitoring to determine if there are any accidental defects in the program.
【図面の簡単な説明】
第１図は従来のウォッチドッグの構成Ｙ示て内、
ｓ２図はウォッチドッグタイ−ｒ （：Ｌり中央処ｍ装
置がツ噸ットされるｉａ台の流れ［Ｙ示す図、ｓＳ図は
本発明の一実施例１示すブロッグ惰ｌ！図である。
ＯＰυ−中央処理装置 丁勧・・・タイマνＳ ６
６局 ＳＳ・・・子局 νシ・・・メモリＭＯＤ連
讐・・−堂醤調器
Ｘ０Ｃ−・・入出力側１ｉｎｉｕｔ
ＹＤ〒・・・ウォッチドッグタイマ
０１丁・・・カウンタ
０テ０・・・カウンタ個出力端子
特許出廟人 冨士通株式会社
代 理 人 紳土鈴木栄祐
手続補正書（自発）
１．事件の表示
昭和５６年 特許 １第２１５１２５号２、発明の名称
中央処理装置の真青復旧検出装置３、 補正をする
者
事件との関係 特許出願人
代表肴山本 卓眞
４、代理人
８、補正の内容 明細書の浄惜（内容（；汲史なし）手
続補正書（自発）
鈍な１
昭和１年２月【へＵゝ
特許庁長冨 島田春樹 殿
１、事件の表示
昭和５６ 年 特許 願第２１５１２５１：２、発明の
名称 中央処理装置の異”ｉ 空旧柳出装首３、 補
正をする者
事件との関係 ％相出願人
工 ゎ（４祢） ５２２ 菖士通株式費社代表省 山
本 車 眞
４、代理人
６、補正により増加する発明の数 な し７、補正の
対象
発明の！１ｆ−ａな説明の掴
１面の（資）率な説明の徊
８、補正の内容
＋１＋ 明細１１Ｉ第３頁第８行「石ことが、」以後
塾９打Ｆ判断でＦ ｒｘい。」までな［ることか、偶発
的Ｃユ起ったためで特に原因がないことか判断できない
。Ｊと補正する。
１２： 明細書１ＪＳ６頁第９行「偶発的なものが、
」を「偶発チ１なものか、」と補正する。
＋３１ 明細長第６頁弗１３行Ｆウォッチドッグ」を
［ウオッチドヅグタイｉ」と補正する。[Brief Description of the Drawings] Figure 1 shows the configuration of a conventional watchdog, and Figure s2 shows the flow of the watchdog tie-r (:L) where the central processing unit is connected. The diagrams shown in Y and sS are blog diagrams showing Embodiment 1 of the present invention.
6th station SS...Slave station ν...Memory MOD connection...-Douji adjuster ...Counter individual output terminal patent author Fujitsu Co., Ltd. Agent Eisuke Shindo Suzuki procedural amendment (voluntary) 1. Indication of the case 1982 Patent No. 1 No. 215125 2, Title of the invention True blue recovery detection device for central processing unit 3, Person making the amendment Relationship to the case Patent applicant representative Takuma Yamamoto 4, attorney 8, amendment Contents of the specification (Contents (no history)) Procedural amendment (spontaneous) Dull 1 February 1930 [To Uゝ Patent Office Director Tomi Haruki Shimada 1, Indication of the case 1982 Patent application no. 2151251:2, Title of the invention: Dissimilarity in the central processing unit 3, Relationship with the case of the person making the amendment % phase application artificial ゎ (4 熢) 522 Isushitsu Stock Exchange Representative Ministry Yamamoto Kurama 4, Agent 6, Number of inventions increased by amendment None 7, Grasping of a reasonable explanation of the invention subject to amendment 8, Contents of amendment + 1 + details 11I, page 3, line 8, ``Ishikoto...'' After that, it was determined that the cram school had a 9th stroke of F.'' It is not possible to determine whether this is due to an accidental C-yu occurrence and there is no particular cause.J 12: Specification 1JS page 6, line 9 “The accidental
” is corrected to ``Is it just a coincidence?'' +31 ``Watchdog'' on page 6, line 13 of the specification length is corrected to ``Watchdog I''.
Claims (1)
るタイマＹ設け、所定時間以内にリセットされないとき
中央外３！装置に対し割込みを上げるウォッチドッグタ
イマと、＃ウォッチドッグタイマが割込みなよげた回１
１９？計数するカウンタと、ｆｉカウンタの餉を上位装
置へ連絡する通信装置とを具備することを特許とする中
央処理装置の異常復旧検出装置。 ２ カウンタの個を受信する上位装置において単位時間
当りのカウンダ慣の変化な求め、それが所定像を超えた
と！、ＩＦ報を発することな特命とする特許請求の範囲
第１項記載の中央処理装置の異常り旧検出装置。[Claims] 1. A timer Y is provided which is set by access from the outside central 311 device, and when it is not reset within a predetermined time, the outside central 3! A watchdog timer that raises an interrupt to the device and #1 when the watchdog timer interrupts an interrupt.
19? An abnormality recovery detection device for a central processing unit, which is patented as having a counter for counting and a communication device for communicating the value of the fi counter to a host device. 2. In the host device that receives the counter data, determine the change in the counter value per unit time, and if it exceeds the predetermined value! , an abnormality detection device for a central processing unit according to claim 1, which is specially ordered to issue an IF report.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56215125A JPS58119060A (en) | 1981-12-31 | 1981-12-31 | Fault recovery detector for central processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56215125A JPS58119060A (en) | 1981-12-31 | 1981-12-31 | Fault recovery detector for central processing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58119060A true JPS58119060A (en) | 1983-07-15 |
Family
ID=16667138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56215125A Pending JPS58119060A (en) | 1981-12-31 | 1981-12-31 | Fault recovery detector for central processing unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58119060A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0528005A (en) * | 1991-07-19 | 1993-02-05 | Nec Corp | Malfunction detecting method |
-
1981
- 1981-12-31 JP JP56215125A patent/JPS58119060A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0528005A (en) * | 1991-07-19 | 1993-02-05 | Nec Corp | Malfunction detecting method |
| US5398332A (en) * | 1991-07-19 | 1995-03-14 | Nec Corporation | System for detecting the malfunction of a CPU including a watchdog timer circuit and a memory for storing a malfunction count |
| JP2758742B2 (en) * | 1991-07-19 | 1998-05-28 | 日本電気株式会社 | Malfunction detection method |
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