JPS5493779A - Input data detector - Google Patents

Input data detector

Info

Publication number
JPS5493779A
JPS5493779A JP74278A JP74278A JPS5493779A JP S5493779 A JPS5493779 A JP S5493779A JP 74278 A JP74278 A JP 74278A JP 74278 A JP74278 A JP 74278A JP S5493779 A JPS5493779 A JP S5493779A
Authority
JP
Japan
Prior art keywords
data
unapproval
sampling
approved
effected
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
JP74278A
Other languages
Japanese (ja)
Inventor
Koji Maeda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP74278A priority Critical patent/JPS5493779A/en
Publication of JPS5493779A publication Critical patent/JPS5493779A/en
Pending legal-status Critical Current

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  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE: To provide a data detector capable of acting a suitable operation, by means of judging as an abnormalness when data obtained by third sampling is also slipping off from the sine wave after the detecting that the detected data was slipped off from the sine wave.
CONSTITUTION: A memory part 1 memolizes in turn by means of receiving the sampling data every electrical angle h. And it outputs three sampling data I(t) I(t-h) I(t-2h) to an operating part 2. When the data is normal, the formula I(t) I(t-2h) = 2I(t-h) coswh is approved. When it is not approved, it returnes to (A) by means of memorizing the number of unapproval, and the same operation is effected by means of progressing one step memorizing data. When the number of the unapproval is continued three times, it is judged as that it was received by electrical disturbance, and when the number of unapproval is continued beyond four times, it is judged as the failure of the device, thereby a prescribed protective operation is effected.
COPYRIGHT: (C)1979,JPO&Japio
JP74278A 1978-01-06 1978-01-06 Input data detector Pending JPS5493779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP74278A JPS5493779A (en) 1978-01-06 1978-01-06 Input data detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP74278A JPS5493779A (en) 1978-01-06 1978-01-06 Input data detector

Publications (1)

Publication Number Publication Date
JPS5493779A true JPS5493779A (en) 1979-07-25

Family

ID=11482155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP74278A Pending JPS5493779A (en) 1978-01-06 1978-01-06 Input data detector

Country Status (1)

Country Link
JP (1) JPS5493779A (en)

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