JPS554625A - Detection system for abnormality of electronic computer - Google Patents
Detection system for abnormality of electronic computerInfo
- Publication number
- JPS554625A JPS554625A JP7706078A JP7706078A JPS554625A JP S554625 A JPS554625 A JP S554625A JP 7706078 A JP7706078 A JP 7706078A JP 7706078 A JP7706078 A JP 7706078A JP S554625 A JPS554625 A JP S554625A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- computer
- logic
- abnormality
- electronic computer
- 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
Landscapes
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To obtain a high-reliability abnormality detection system by interrupting an electronic computer on a constant cycle and by extracting the logic of the operation supervisory output port of the computer, inverted between "0" and "1" at every time when a fixed number of interruptions end, via BPF and a transformer.
CONSTITUTION: On interrupting electronic computer 1 by fixed-cycle interruption signal 9 from timer 2, the interruption routine of computer 1 inverts the logic of the operation supervisory output port of the computer between "1" and "0" at every time of the transmission of several pulses from the timer and then outputs constant- frequency rectangular signal 9. Signal 9 is passed through BPF5 to output signal 10, which is also passed through rectifier circuit 7 from transformer 6, thereby obtaining normal operation signal 11a of logic "1" of the operation supervisory signal. When the operation of the computer becomes abnormal, absence of signal 9 or variation in frequency occurs, so that the output of circuit 7 will be zero, namely, 11b. Even if BPF gets out of order, the operation supervisory signal never stays at logic "1", and the abnormality can definitely be detected.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7706078A JPS554625A (en) | 1978-06-27 | 1978-06-27 | Detection system for abnormality of electronic computer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7706078A JPS554625A (en) | 1978-06-27 | 1978-06-27 | Detection system for abnormality of electronic computer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554625A true JPS554625A (en) | 1980-01-14 |
Family
ID=13623240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7706078A Pending JPS554625A (en) | 1978-06-27 | 1978-06-27 | Detection system for abnormality of electronic computer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554625A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6096219U (en) * | 1983-12-05 | 1985-07-01 | 日本オフセツト株式会社 | Mosquito repellent storage container |
-
1978
- 1978-06-27 JP JP7706078A patent/JPS554625A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6096219U (en) * | 1983-12-05 | 1985-07-01 | 日本オフセツト株式会社 | Mosquito repellent storage container |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS554625A (en) | Detection system for abnormality of electronic computer | |
JPS5587243A (en) | Zero detection system of adder output | |
JPS55116150A (en) | Fault detection system for processor | |
JPS54149670A (en) | Circuit device for detecting ultrasonic wave propagating time | |
JPS54162940A (en) | Computer supervisory device | |
JPS5470659A (en) | System of operating washing machine | |
JPS5523551A (en) | Control unit diagnostic equipment | |
JPS5516265A (en) | Counter circuit for train travelling distance measurement | |
JPS6426176A (en) | Automatic and real time disturbance monitoring/checking circuit network for microwave landing system | |
JPS55101705A (en) | Method of controlling operation of rotary machine through diagnosis of trouble caused therein | |
JPS5591040A (en) | Runaway monitor system for microprocessor | |
JPS5744356A (en) | Ais signal detecting circuit | |
JPS5671151A (en) | Anomaly detection system | |
JPS5371544A (en) | Abnormal loop detection circuit for microprogram | |
JPS5431245A (en) | Fault detection circuit | |
JPS5484911A (en) | Protection unit for signal transmission line | |
JPS537165A (en) | Synchronism detecting circuit of phase control circuit | |
JPS54105937A (en) | Monitor system for electronic computer system | |
JPS5390707A (en) | Detecting system for circuit fault | |
JPS5315545A (en) | Circuit trouble detector | |
JPS5444170A (en) | Digital controller | |
JPS57131650A (en) | Jam detector | |
JPS5657133A (en) | Fault diagnostic system in decentralized control system | |
JPS5572260A (en) | Input-output device | |
JPS5566030A (en) | Package of fault detection capability |