JPH0193832A - Device for detecting temperature abnormality - Google Patents

Device for detecting temperature abnormality

Info

Publication number
JPH0193832A
JPH0193832A JP62249770A JP24977087A JPH0193832A JP H0193832 A JPH0193832 A JP H0193832A JP 62249770 A JP62249770 A JP 62249770A JP 24977087 A JP24977087 A JP 24977087A JP H0193832 A JPH0193832 A JP H0193832A
Authority
JP
Japan
Prior art keywords
signal
temperature
temperature abnormality
abnormality
circuit
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
JP62249770A
Other languages
Japanese (ja)
Inventor
Hidekazu Kaneko
秀和 金子
Tsuneo Horie
堀江 恒雄
Masatoshi Nishina
昌俊 仁科
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62249770A priority Critical patent/JPH0193832A/en
Publication of JPH0193832A publication Critical patent/JPH0193832A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To extract the final condition of data and to detect abnormal temperature by informing a high order of the temperature abnormality and executing a processing for an abnormal when the limit of the operating temperature of a peripheral device is detected. CONSTITUTION:When a thermostat 9 detects the abnormal temperature of devices while devices 1-3 are operated, a thermal alarm signal 30 is outputted and encoded by an ENCODE circuit 25. Then, the signal is sent to a magnetic disk control device. A magnetic disk control device 1 decodes a BUS signal and recognizes the thermal alarm signal 30. After an abnormality processing is executed, a temperature abnormality PSOFF signal 31 is sent to an A system logical part 17 by a BUS signal 7. On the other hand, for a controller 4, a signal to be received from the BUS signal 7 is decodes by a DECODE circuit 19 and the temperature abnormality PSOFF signal 31 is outputted. A latch circuit 21 is set by a temperature abnormality PSOFF set signal 32 and a signal 29 goes to be '0'.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、情報処理装置に係り、特に、周辺装置の温度
異常の保護に好適な、温度検出方式に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an information processing device, and particularly to a temperature detection method suitable for protecting peripheral devices from temperature abnormalities.

〔従来の技術〕[Conventional technology]

従来、周辺装置において温度異常を検出した場合、上位
装置に知らせることなく、無条件に、当該周辺装置の電
源をOFFするため、温度異常終了時の、データの情報
について配慮がなされていなかった。また、公報60−
43724によれば従処理機器からの電源OFFの要求
に対する処理は、配慮されているが、従処理機器の温度
異常については、配慮されてはいなかった。そして、特
開昭60−43724号では、特に電源遮断処理装置を
備えているが、該発明においては、特に電源遮断装置は
備えず、異常処理プログラムと、該周辺装置に、簡単な
温度異常検出回路と、電源OFF用の回路を設けるだけ
でよい。
Conventionally, when a temperature abnormality is detected in a peripheral device, the power of the peripheral device is unconditionally turned off without notifying the host device, so no consideration has been given to data information when the temperature abnormality ends. Also, Publication No. 60-
According to No. 43724, consideration has been given to the processing in response to a request to turn off the power from the slave processing equipment, but no consideration has been given to the temperature abnormality of the slave processing equipment. JP-A No. 60-43724 specifically includes a power cutoff processing device, but in this invention, a power cutoff processing device is not particularly provided, and the abnormality processing program and the peripheral device are equipped with a simple temperature abnormality detection device. It is only necessary to provide a circuit and a circuit for turning off the power.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来技術においては、温度異常検出時、データの異常時
の処理を行なう点について、配慮されておらず、無条件
に電源をOFFし、てしまうため、OFF直前までのデ
ータの状態を把握できないという問題があった。
In the conventional technology, no consideration is given to processing when an abnormality in data is detected when a temperature abnormality is detected, and the power is turned off unconditionally, making it impossible to grasp the state of the data just before the power is turned off. There was a problem.

本発明の目的は、温度異常が検出された場合。The purpose of the present invention is to detect a temperature abnormality.

既存の信号線を利用し、上位装置に報告し、しかも、複
数の上位装置と接続されている場合は、複数の上位装置
の処理が全て終ったことを確認して電源をOFFするか
、あるいは、上位に報告しない場合は、DRVへの制御
信号をOFFすることにより、DRVの制御を遮断し、
ある時間経過したのち、PWROFFすることにより、
温度異常によるデータの破壊を未然に防止することにあ
る。
If the existing signal line is used to report to the higher-level device, and if it is connected to multiple higher-level devices, confirm that all the processing of the multiple higher-level devices has been completed and then turn off the power, or , If not reported to the upper level, the control signal to the DRV is turned OFF to cut off the control of the DRV,
By turning off the PWR after a certain period of time has elapsed,
The purpose is to prevent data from being destroyed due to temperature abnormalities.

〔問題点を解決するための手段〕[Means for solving problems]

上記目的は、温度異常を検出したことを、上位に報告す
るための信号を設け、当該信号を上位装置と接続されて
いるTAG、BUS信号に載せるための回路と、上位か
らのTAG、BUS信号を解読し、電源OFFの信号を
出力する回路、及びこれらの回路を上位装置の数だけ用
意し、各々の電源0FFOKの信号のANDをとり、電
源をOFFする回路と、上位へ異常を知らせないで電源
OFFする場合は、切替回路により、DRV側への制御
信号線をOFFし、、その後、電源OFFまでの時間を
監視し、ある時間経過後、電源をOFFする回路を設け
ることにより達成される。
The above purpose is to provide a signal to report to the higher level that a temperature abnormality has been detected, and to provide a circuit for placing the signal on the TAG and BUS signals connected to the higher level device, and to transmit the TAG and BUS signals from the higher level. A circuit that decodes the power supply and outputs a power OFF signal, and prepares as many of these circuits as there are host devices, and a circuit that ANDs each power supply OFFOK signal and turns off the power, and a circuit that does not notify the higher level of an abnormality. When turning off the power, this can be accomplished by using a switching circuit to turn off the control signal line to the DRV side, then monitoring the time until the power is turned off, and installing a circuit that turns off the power after a certain amount of time has elapsed. Ru.

〔作用〕[Effect]

温度異常の検出回路により、温度の異常が検出されると
、磁気ディスク装置は、処理中のデータがある場合は、
当該データ処理を、DKCにて、あるいは、DRV側に
て、行ない、処理完了後、電源をOFFする。これによ
り、当該磁気ディスク装置の温度異常時、異常処理を行
なった後、電源をOFFするため、データ破壊を防止す
ることができる。
When the temperature abnormality detection circuit detects a temperature abnormality, the magnetic disk drive will
The data processing is performed on the DKC or on the DRV side, and after the processing is completed, the power is turned off. Thereby, when the temperature of the magnetic disk device is abnormal, the power is turned off after abnormality processing is performed, so data destruction can be prevented.

〔実施例〕〔Example〕

以下、本発明の一実施例を第1図、第2図により説明す
る。第1図において、1,2は、磁気ディスク制御装置
(以下DKCと称す。)3は、磁気ディスク装置を示す
。3は、さらに、4のコントローラ部(以下、CTL)
と複数のドライブ部(以下、DRV)より成り、1.2
と3は、TAG/BUS信号、及びREAD/WRIT
E信号の信号群7,8により接続されている。またDK
Cl、2は、CPU等の上位装置に接続されているもの
とする。CTL4は、装置の温度異常検出回路の(TH
)及び論理部11と、電源部13と。
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In FIG. 1, 1 and 2 indicate a magnetic disk control device (hereinafter referred to as DKC), and 3 indicates a magnetic disk device. 3 further includes a controller unit (hereinafter referred to as CTL) of 4.
and multiple drive units (hereinafter referred to as DRV), 1.2
and 3 are TAG/BUS signals and READ/WRIT
They are connected by signal groups 7 and 8 of E signals. Also DK
It is assumed that Cl,2 is connected to a host device such as a CPU. CTL4 is the temperature abnormality detection circuit (TH
), the logic section 11, and the power supply section 13.

各々10.12を介して接続され、DRVの電源部15
,16は、CTLの論理部11より、電源制御信号線1
4により接続されている。また、CTL4から、DRV
I、DRV2へ、制御信号線DRVCTL信号群41を
介して、各々のDRvのL/G42,43へ接続されて
いるものとする。
10 and 12, respectively, and are connected via the power supply section 15 of the DRV.
, 16 are the power supply control signal lines 1 from the logic section 11 of the CTL.
Connected by 4. Also, from CTL4, DRV
It is assumed that the control signal line I, DRV2 is connected to the L/Gs 42 and 43 of each DRv via the control signal line DRVCTL signal group 41.

第2図は、9〜11の詳細図であり、17は、上位装置
DKCIと接続されるA糸温度異常検出回路、18は上
位装置DKC2と接続されるB糸温度異常検出回路を示
す。
FIG. 2 is a detailed diagram of 9 to 11, in which 17 shows an A yarn temperature abnormality detection circuit connected to the host device DKCI, and 18 shows a B yarn temperature abnormality detection circuit connected to the host device DKC2.

まず最初に、温度異常を検出した時、信号群7゜8を用
いて、温度異常を上位装置のDKCI、2へ報告し、デ
ータの処理を行なう場合について、記述する。
First, a case will be described in which when a temperature abnormality is detected, the temperature abnormality is reported to the host device DKCI, 2 using the signal group 7.8, and the data is processed.

今、装置1〜3が稼動中に、TH9が、当該装置の温度
異常を、検出したとすると、温度異常信号10と、PO
NRDY信号29のANDがとれ、サーマルアラーム(
THALM)信号30を出力し、ENCODE回路25
により、コード化されて、信号群7により、DKCに送
出される。ここで、信号29は、CTL4の電源ONの
時、PONR8T−Pにより l(l I+になってい
るものとし、25より送出されるのは、特定のTAG/
BUS信号33の時のみ送出されるものとする。またD
KCI、2は、CTL4の論理部のA系論理部17.B
系論理部18に各々接続されている。
Now, suppose that TH9 detects a temperature abnormality in the device while devices 1 to 3 are in operation, the temperature abnormality signal 10 and the PO
The AND of NRDY signal 29 is removed and the thermal alarm (
THALM) signal 30 and outputs the ENCODE circuit 25.
The signal is encoded by the signal group 7 and sent to the DKC by the signal group 7. Here, it is assumed that the signal 29 is set to l(l I+) by the PONR8T-P when the CTL4 power is turned on, and the signal 29 is sent from the specific TAG/
It is assumed that the signal is sent only when the BUS signal 33 is used. Also D
KCI,2 is the A-system logic section 17. of the logic section of CTL4. B
Each is connected to the system logic unit 18.

そこでDKCIは、BUS信号を解読して、THALM
信号を認識し、異常処理を行なった後、CTLのA系論
理部17に対して、PSOFFの信号を、TAG/BU
S信号7により送出する。−方CTL4は、7により受
は取った信号を、DECOD回路19により、解読され
て、温度異常PSOFF信号31が出力される。31と
、10のANDがとれると、温度異常PSOFFセット
信号32により、温度異常PSOFFラッチ回路21が
セットされ、PONRDY信号29は“0″になる。信
号29が“0”になると、今まで。
Therefore, DKCI decodes the BUS signal and
After recognizing the signal and performing abnormality processing, a PSOFF signal is sent to the A-system logic section 17 of the CTL to the TAG/BU
It is sent by S signal 7. The signal received by CTL 4 is decoded by DECOD circuit 19, and temperature abnormality PSOFF signal 31 is output. 31 and 10, the temperature abnormality PSOFF latch circuit 21 is set by the temperature abnormality PSOFF set signal 32, and the PONRDY signal 29 becomes "0". Until now, when the signal 29 became "0".

“1”であったTHALM信号30がインヒビットされ
る。同時に、信号29は、OR回路23を通り、PSO
FFAOK信号34を有効にする。
The THALM signal 30, which was "1", is inhibited. At the same time, the signal 29 passes through the OR circuit 23 and the PSO
Enable FFAOK signal 34.

また、PONラッチ回路26は、電源制御インタフェー
ス回路24により、既に、ONセット信号35によりセ
ットされ、PONA信号28を有効にしているものとす
る。PSOFF時は、OFF信号36により、26がリ
セットされ、PONA信号も無効にする。ところで、C
TLのA系のPONA信号28と同様に、B系PONB
信号38もB系論理部より、OR回路39に接続され。
Further, it is assumed that the PON latch circuit 26 has already been set by the ON set signal 35 by the power supply control interface circuit 24 and has enabled the PONA signal 28. At the time of PSOFF, the OFF signal 36 resets 26 and also invalidates the PONA signal. By the way, C
Similar to the TL A-system PONA signal 28, the B-system PONB
The signal 38 is also connected to the OR circuit 39 from the B-system logic section.

39の出力が、DRVPON信号40となり、電源制御
信号線14に含まれ、DRV側の電源を0N10FFす
るものとする。また、46は、信号28を、遅延させる
時間監視回路である。以上により、A系における、温度
異常によるPSOFF○に信号34が有効になった状態
で保持されたまま、同様にB系の異常時の処理が行なわ
れると。
It is assumed that the output of 39 becomes the DRVPON signal 40, is included in the power supply control signal line 14, and turns the power supply on the DRV side 0N10FF. Further, 46 is a time monitoring circuit that delays the signal 28. As described above, while the signal 34 is maintained in a valid state for PSOFF○ due to temperature abnormality in system A, processing for abnormality in system B is similarly performed.

PSOFFBOK信号41かB系18より出力され、2
7でANDがとれると、PSOFF信号37を有効にし
、A系、B系のPONラッチをリセットし、信号28.
38をインヒビットする。
PSOFFBOK signal 41 is output from B system 18, and 2
7, the PSOFF signal 37 is enabled, the A system and B system PON latches are reset, and the signal 28.
38 is inhibited.

これにより、DRVPON信号4oは、無効になり、D
RV側の電源がOFFされることになる。
As a result, the DRVPON signal 4o becomes invalid and the DRVPON signal 4o becomes invalid.
The power on the RV side will be turned off.

次に、上位装置へ、温度異常を知らせずに、磁気ディス
ク装置3において、異常時の処理を行なう場合について
述べる。
Next, a case will be described in which the magnetic disk device 3 performs abnormality processing without notifying the host device of the temperature abnormality.

44は、DRVへのCTL信号群41を送出するDRV
CTL信号送出回路、45は、上位装置へ温度異常を報
告する場合には、回路44を常に有効にしてDRVCT
L信号41を送出し、上位装置に温度異常を報告しない
場合には、信号28をゲートし、28が、“0”になる
と、信号群41(例えば、5ELHLD信号)をOFF
にすることができる切替回路とする。ここで、前記の温
度異常を、上位へ報告する場合を例1、本例を例2とす
ると、47は、例2の場合のみ動作し、信号10をゲー
トするゲート回路である。そこで。
44 is a DRV that sends the CTL signal group 41 to the DRV.
The CTL signal sending circuit 45 always enables the circuit 44 and transmits the DRVCT when reporting a temperature abnormality to the host device.
When the L signal 41 is sent and the temperature abnormality is not reported to the host device, the signal 28 is gated, and when the signal 28 becomes "0", the signal group 41 (for example, the 5ELHLD signal) is turned off.
A switching circuit that can be used to Here, if the case where the temperature abnormality is reported to the upper level is Example 1, and this example is Example 2, then 47 is a gate circuit that operates only in Example 2 and gates the signal 10. Therefore.

例1と同様に、TH9が、温度異常を検出したとすると
、アラーム信号は、47によりゲートされ、ラッチ回路
26をリセットする。26がリセットされると、28が
“0″になり、切替回路45により、DRVCTL信号
41を無効にする。信号41が無効にされた後、DRv
(ll!lでのデータ処理時間だけ、電源がOFFされ
ないような時間監視回路46を通り、特定の時間後、回
路39より、DRVPON信号40が無効にされる0本
例では、特に信号群7は、使用されないが、他の回路の
動作は、例1と同様に働く。以上のようにして、DRV
側の電源がOFFされることになる。
As in Example 1, if TH9 detects a temperature abnormality, the alarm signal is gated by 47 and resets latch circuit 26. When 26 is reset, 28 becomes "0" and the switching circuit 45 invalidates the DRVCTL signal 41. After signal 41 is disabled, DRv
(During the data processing time in ll!l, the DRVPON signal 40 passes through a time monitoring circuit 46 such that the power is not turned off, and after a specific time, the DRVPON signal 40 is disabled by the circuit 39.) In this example, in particular, the signal group 7 is not used, but the operation of the other circuits works as in Example 1. In this way, DRV
The power on the side will be turned off.

〔発明の効果〕〔Effect of the invention〕

従来ならば、周辺装置の動作温度の限界を検出した場合
、上位に報告したり、異常時のデータ処理をすることな
く、当該装置の電源をOFFしていたが、本発明によれ
ば、温度異常を上位に知らせ、異常時の処理を行なうこ
とによ゛す、データの最終状態を採集することができ、
また、上位装置に、温度異常を報告しない場合は、DR
V側で、データ処理が行なえるようにすることにより、
データの信頼性を向上させる効果があり、アラーム信号
線を新たに追加することなく、温度異常の検出をし、デ
ータ処理することが可能になるため、少ないハード量の
追加で実現でき、コストアップを抑え、原価の低減の効
果がある。
Conventionally, when the operating temperature limit of a peripheral device was detected, the power to the device was turned off without reporting it to a higher level or processing the abnormal data, but according to the present invention, the temperature limit can be detected. It is possible to collect the final state of the data by notifying the higher level of the abnormality and processing the abnormality.
In addition, if the temperature abnormality is not reported to the host device, the DR
By enabling data processing on the V side,
It has the effect of improving data reliability, and makes it possible to detect temperature abnormalities and process data without adding new alarm signal lines, so it can be achieved with a small amount of additional hardware, reducing costs. This has the effect of reducing costs.

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

第1図は、本発明の一実施例のシステム構成の概略図、
第2図は、第1図の温度検出回路のブロック図である。 1.2・・・磁気ディスク制御装置、3・・・磁気ディ
スク装置、4・・・コントローラ部(CTL)、5.6
・・・ドライブ部(DRV)、9・・・サーモスタット
、11・・・コントローラ部の論理部、13・・・コン
トローラ部の電源、15.16・・・ドライブの電源部
、17・・・A系の温度異常検出回路、18・・・B系
の温度異常検出回路。
FIG. 1 is a schematic diagram of a system configuration of an embodiment of the present invention;
FIG. 2 is a block diagram of the temperature detection circuit of FIG. 1. 1.2...Magnetic disk control device, 3...Magnetic disk device, 4...Controller unit (CTL), 5.6
...Drive section (DRV), 9...Thermostat, 11...Logic section of controller section, 13...Power supply of controller section, 15.16...Power supply section of drive, 17...A System temperature abnormality detection circuit, 18...B system temperature abnormality detection circuit.

Claims (1)

【特許請求の範囲】[Claims] 1、上位装置と接続される周辺装置で、装置内温度が、
許容動作温度以上になった場合、当該温度を検出する回
路と、当該温度異常を上位装置に知らせる信号と、上位
装置は、異常時の処理を行なった後、当該装置の電源を
OFFする場合と、上位へ報告しない場合は、下位装置
への制御信号をOFFし、その後、データを破壊しない
ような時間遅延をもたせ、下位装置でのデータ処理を行
なった後、電源OFFする回路を設けたことを特徴とす
る温度異常検出装置。
1. The internal temperature of the peripheral device connected to the host device is
When the temperature exceeds the allowable operating temperature, a circuit that detects the temperature, a signal to notify the higher-level device of the temperature abnormality, and a case where the higher-level device turns off the power of the device after processing the abnormality. If the data is not reported to the upper level, a circuit is installed that turns off the control signal to the lower-level device, provides a time delay that does not destroy the data, and turns off the power after the data is processed in the lower-level device. A temperature abnormality detection device characterized by:
JP62249770A 1987-10-05 1987-10-05 Device for detecting temperature abnormality Pending JPH0193832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62249770A JPH0193832A (en) 1987-10-05 1987-10-05 Device for detecting temperature abnormality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62249770A JPH0193832A (en) 1987-10-05 1987-10-05 Device for detecting temperature abnormality

Publications (1)

Publication Number Publication Date
JPH0193832A true JPH0193832A (en) 1989-04-12

Family

ID=17197969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62249770A Pending JPH0193832A (en) 1987-10-05 1987-10-05 Device for detecting temperature abnormality

Country Status (1)

Country Link
JP (1) JPH0193832A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016531370A (en) * 2013-09-09 2016-10-06 シーゲイト テクノロジー エルエルシーSeagate Technology LLC Mobile data storage device with temperature management

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016531370A (en) * 2013-09-09 2016-10-06 シーゲイト テクノロジー エルエルシーSeagate Technology LLC Mobile data storage device with temperature management
US10942503B2 (en) 2013-09-09 2021-03-09 Seagate Technology Llc Mobile data storage device with predicted temperature management via command time delay

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