JPS61168434U - - Google Patents
Info
- Publication number
- JPS61168434U JPS61168434U JP5088685U JP5088685U JPS61168434U JP S61168434 U JPS61168434 U JP S61168434U JP 5088685 U JP5088685 U JP 5088685U JP 5088685 U JP5088685 U JP 5088685U JP S61168434 U JPS61168434 U JP S61168434U
- Authority
- JP
- Japan
- Prior art keywords
- microcomputers
- reference pulse
- microcomputer
- program
- runaway
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Multi Processors (AREA)
- Debugging And Monitoring (AREA)
Description
第１図はこの考案の一実施例の回路図、第２図
はそのタイミングチヤートを示す図、第３図は従
来例の回路図である。
１１，１２……マイクロコンピユータ、１３…
…基準パルス信号発生回路、１４……他のマイク
ロコンピユータ、１５……他のマイクロコンピユ
ータ用暴走検知回路、１７……暴走検知回路、１
８……ゲート回路、１９……フイルタ回路、２０
……インバータ。
FIG. 1 is a circuit diagram of an embodiment of this invention, FIG. 2 is a timing chart thereof, and FIG. 3 is a circuit diagram of a conventional example. 11, 12... microcomputer, 13...
... Reference pulse signal generation circuit, 14 ... Other microcomputer, 15 ... Runaway detection circuit for other microcomputer, 17 ... Runaway detection circuit, 1
8... Gate circuit, 19... Filter circuit, 20
...Inverter.
Claims (1)
行なう複数のマイクロコンピユータ１１，１２を
備え、該複数のマイクロコンピユータ１１，１２
は、夫々プログラムが正常に動作し得る状態にあ
るときに、その外部に設けられた基準パルス発生
回路１３から供給される基準パルス信号ａに基づ
いて、互に同一周期のパルス信号ｃ，ｂを夫々所
定の出力ポートから出力するプログラムを有し、
更に、前記複数のマイクロコンピユータ１１，１
２の各出力ポートから出力される複数のパルス信
号ｃ，ｂと前記基準パルス発生回路１３から出力
される基準パルス信号ａとを入力し、該複数のパ
ルス信号ｃ，ｂ及び基準パルス信号ａの各周期が
互に同一か否かを検出する暴走検知回路１７を備
えたことを特徴とするマイクロコンピユータの暴
走検知システム。 (2) 前記暴走検知回路１７は、前記複数のマイ
クロコンピユータ１１，１２の各出力ポートから
夫々出力される複数のパルス信号ｃ，ｂと前記基
準パルス発生回路１３から出力される基準パルス
信号ａとの各周期が互に同一でなくなつたことを
検出したときに、前記複数のマイクロコンピユー
タ１１，１２の各プログラムをリセツトせしめる
リセツト信号ｈを発生するか、又は警報を発生す
る回路であることを特徴とする実用新案登録請求
の範囲第(1)項記載のマイクロコンピユータの暴
走検知システム。 (3) 前記基準パルス発生回路１３は、自己のプ
ログラム暴走に対するフエイルセイフリセツト機
能を備え、かつ前記複数のマイクロコンピユータ
１１，１２と共にそのプログラムに従つて所定の
システム制御を行なう他のマイクロコンピユータ
１４からなることを特徴とする実用新案登録請求
の範囲第(1)項記載のマイクロコンピユータの暴
走検知システム。 (4) 前記複数のマイクロコンピユータ１１，１
２は前記他のマイクロコンピユータ１４のフエイ
ルセイフリセツト機能によるリセツト信号を受け
て、夫々のプログラムがリセツトされることを特
徴とする実用新案登録請求の範囲第(3)項記載の
マイクロコンピユータの暴走検知システム。[Claims for Utility Model Registration] (1) Comprising a plurality of microcomputers 11 and 12 that perform predetermined system control according to a program, the plurality of microcomputers 11 and 12
generate pulse signals c and b of the same period based on the reference pulse signal a supplied from the reference pulse generation circuit 13 provided externally when the respective programs are in a state where they can operate normally. Each has a program that outputs from a predetermined output port,
Furthermore, the plurality of microcomputers 11,1
A plurality of pulse signals c, b outputted from each output port of 2 and a reference pulse signal a outputted from the reference pulse generation circuit 13 are inputted, and the plurality of pulse signals c, b and the reference pulse signal a are inputted. A runaway detection system for a microcomputer, comprising a runaway detection circuit 17 that detects whether each cycle is the same or not. (2) The runaway detection circuit 17 receives a plurality of pulse signals c and b outputted from each output port of the plurality of microcomputers 11 and 12, and a reference pulse signal a outputted from the reference pulse generation circuit 13. The circuit generates a reset signal h for resetting each program of the plurality of microcomputers 11 and 12 or generates an alarm when detecting that the cycles of the microcomputers 11 and 12 are no longer the same. A runaway detection system for a microcomputer according to claim (1) of the registered utility model. (3) The reference pulse generation circuit 13 has a fail-safe reset function against its own program runaway, and is connected to another microcomputer 14 that performs predetermined system control in accordance with the program together with the plurality of microcomputers 11 and 12. A runaway detection system for a microcomputer as set forth in claim (1) of the utility model registration claim, characterized in that the system comprises: (4) The plurality of microcomputers 11, 1
2 is a microcomputer runaway as set forth in claim (3) of the utility model registration, characterized in that each program is reset upon receiving a reset signal from the fail-safe reset function of the other microcomputer 14; detection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5088685U JPH0426914Y2 (en) | 1985-04-05 | 1985-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5088685U JPH0426914Y2 (en) | 1985-04-05 | 1985-04-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61168434U true JPS61168434U (en) | 1986-10-18 |
| JPH0426914Y2 JPH0426914Y2 (en) | 1992-06-29 |
Family
ID=30569438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5088685U Expired JPH0426914Y2 (en) | 1985-04-05 | 1985-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426914Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016038620A (en) * | 2014-08-05 | 2016-03-22 | 日立オートモティブシステムズ株式会社 | Electronic control device |
-
1985
- 1985-04-05 JP JP5088685U patent/JPH0426914Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016038620A (en) * | 2014-08-05 | 2016-03-22 | 日立オートモティブシステムズ株式会社 | Electronic control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0426914Y2 (en) | 1992-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61168434U (en) | ||
| JPS61120951U (en) | ||
| JPS62100544U (en) | ||
| JPS62125957U (en) | ||
| JPS6228262U (en) | ||
| JPS6348202U (en) | ||
| JPH01175305U (en) | ||
| JPS6137539U (en) | Microcomputer runaway detection system | |
| JPS6275543U (en) | ||
| JPS625359U (en) | ||
| JPS5866445U (en) | Alarm generation circuit | |
| JPS643961U (en) | ||
| JPS6443462U (en) | ||
| JPS6327946U (en) | ||
| JPH026347U (en) | ||
| JPH01164548U (en) | ||
| JPH0212685U (en) | ||
| JPS6454103U (en) | ||
| JPS62134149U (en) | ||
| JPS61112452U (en) | ||
| JPS63110945U (en) | ||
| JPS63157639U (en) | ||
| JPS6361043U (en) | ||
| JPH022748U (en) | ||
| JPS6271706U (en) |