JPS56115959A - Frequency detection - Google Patents

Frequency detection

Info

Publication number
JPS56115959A
JPS56115959A JP1849380A JP1849380A JPS56115959A JP S56115959 A JPS56115959 A JP S56115959A JP 1849380 A JP1849380 A JP 1849380A JP 1849380 A JP1849380 A JP 1849380A JP S56115959 A JPS56115959 A JP S56115959A
Authority
JP
Japan
Prior art keywords
data
frequency
mean value
running
detect
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
JP1849380A
Other languages
Japanese (ja)
Inventor
Yuichiro Inoue
Masamichi Sakaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1849380A priority Critical patent/JPS56115959A/en
Publication of JPS56115959A publication Critical patent/JPS56115959A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B5/00—Anti-hunting arrangements
    • G05B5/01—Anti-hunting arrangements electric

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Feedback Control In General (AREA)

Abstract

PURPOSE:To make it possible to measure the frequency of the change of the control system and control the process by comparing the running average value of the whole sampling data within a fixec time with the data distribution curve. CONSTITUTION:The sampling of input is made at each sampling period to take the new data into the shift register keeping always only the data within a fixed time. Next, from the whole data of each shift register the running mean value is calculated for at every generating sampling pulse to detect the trend of the curve distribution of the input for said running mean value. That is to say that the new data are read out in a series from the shift register to detect the crossing point while reducing the running average value from the difference of the data from the running mean value and to count the frequency of detection. Said counting value is the frequency of going to and coming from the running mean value for enabling to detect the oscillation of the control quantity. Thereby the every moment changing input frequency can be measured and utilized for the feed forward control.
JP1849380A 1980-02-19 1980-02-19 Frequency detection Pending JPS56115959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1849380A JPS56115959A (en) 1980-02-19 1980-02-19 Frequency detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1849380A JPS56115959A (en) 1980-02-19 1980-02-19 Frequency detection

Publications (1)

Publication Number Publication Date
JPS56115959A true JPS56115959A (en) 1981-09-11

Family

ID=11973142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1849380A Pending JPS56115959A (en) 1980-02-19 1980-02-19 Frequency detection

Country Status (1)

Country Link
JP (1) JPS56115959A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60103406A (en) * 1983-10-26 1985-06-07 フィスラー　ゲーエムベーハー Measuring signal conducting apparatus for heater
JPS61230767A (en) * 1985-04-05 1986-10-15 Kanzaki Paper Mfg Co Ltd Apparatus for controlling coating amount

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60103406A (en) * 1983-10-26 1985-06-07 フィスラー　ゲーエムベーハー Measuring signal conducting apparatus for heater
JPH0441366B2 (en) * 1983-10-26 1992-07-08 Fissler Gmbh
JPS61230767A (en) * 1985-04-05 1986-10-15 Kanzaki Paper Mfg Co Ltd Apparatus for controlling coating amount

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