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GB1365853A - Stored programme centrally controlled telecommunications exchange systems - Google Patents

Stored programme centrally controlled telecommunications exchange systems

Info

Publication number
GB1365853A
GB1365853A GB352473A GB352473A GB1365853A GB 1365853 A GB1365853 A GB 1365853A GB 352473 A GB352473 A GB 352473A GB 352473 A GB352473 A GB 352473A GB 1365853 A GB1365853 A GB 1365853A
Authority
GB
United Kingdom
Prior art keywords
processor
monitor
programme
audit
alarm
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.)
Expired
Application number
GB352473A
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Publication of GB1365853A publication Critical patent/GB1365853A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F11/076—Error or fault detection not based on redundancy by exceeding limits by exceeding a count or rate limit, e.g. word- or bit count limit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
    • H04Q3/54575—Software application
    • H04Q3/54591—Supervision, e.g. fault localisation, traffic measurements, avoiding errors, failure recovery, monitoring, statistical analysis

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

1365853 Monitoring data processors SIEMENS AG 24 Jan 1973 [1 Feb 1972] 3524/73 Heading G4A [Also in Division H4] In a stored programme controlled exchange in which the central processor periodically sets up internal audits except when it is subject to a heavy load condition, an external monitor is provided for interrupting the processor and causing it to perform a self-check in the event that more than a predetermined number of audits are neglected. If a satisfactory result is not then obtained from the processor the monitor actuates an alarm and/or switches in a duplicate processor. A counter or a timing circuit that is zeroed every time a satisfactory audit is announced may be used to monitor said predetermined number. To prevent mad programme loops from heavily loading the processor while not revealing any faults during an error checking audit, the current programme number may be sent to the monitor every time it demands an audit whereby repeated occurrences of a same programme number institutes the alarm.
GB352473A 1972-02-01 1973-01-24 Stored programme centrally controlled telecommunications exchange systems Expired GB1365853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722204681 DE2204681C2 (en) 1972-02-01 1972-02-01 Method for the automatic monitoring of central units of program-controlled switching systems

Publications (1)

Publication Number Publication Date
GB1365853A true GB1365853A (en) 1974-09-04

Family

ID=5834697

Family Applications (1)

Application Number Title Priority Date Filing Date
GB352473A Expired GB1365853A (en) 1972-02-01 1973-01-24 Stored programme centrally controlled telecommunications exchange systems

Country Status (6)

Country Link
BE (1) BE794861A (en)
DE (1) DE2204681C2 (en)
FR (1) FR2170065B1 (en)
GB (1) GB1365853A (en)
IT (1) IT978509B (en)
NL (1) NL164720C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2309915A1 (en) * 1975-04-28 1976-11-26 Labo Cent Telecommunicat METHOD AND DEVICE FOR INCREASING THE SAFETY OF A COMPUTER CONTROL SYSTEM
DE3207633A1 (en) * 1982-02-26 1983-09-15 Siemens AG, 1000 Berlin und 8000 München CIRCUIT FOR MONITORING A MICROPROCESSOR

Also Published As

Publication number Publication date
FR2170065A1 (en) 1973-09-14
DE2204681B1 (en) 1973-07-19
DE2204681C2 (en) 1974-02-14
NL7300951A (en) 1973-08-03
IT978509B (en) 1974-09-20
FR2170065B1 (en) 1978-08-04
BE794861A (en) 1973-08-01
NL164720C (en) 1981-01-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee