JPS55158511A - Position detecting method - Google Patents

Position detecting method

Info

Publication number
JPS55158511A
JPS55158511A JP6611379A JP6611379A JPS55158511A JP S55158511 A JPS55158511 A JP S55158511A JP 6611379 A JP6611379 A JP 6611379A JP 6611379 A JP6611379 A JP 6611379A JP S55158511 A JPS55158511 A JP S55158511A
Authority
JP
Japan
Prior art keywords
encoder
sampling
time
movement
maximum value
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
JP6611379A
Other languages
Japanese (ja)
Inventor
Motosuke Murakami
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 JP6611379A priority Critical patent/JPS55158511A/en
Publication of JPS55158511A publication Critical patent/JPS55158511A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE: To perform the position detection without a multidigit encoder by computing the position by sampling outputs of an encoder the digit of which is not less than that of the increment of the maximum value of the movement of the object to be detected.
CONSTITUTION: When the maximum value of the movement is four increments or less during the sampling and the number of digits of the encoder is one and the present position at the time this sampling is finished is Sn and the value of the encoder in the sampling at this time is xn, the following formulas hold. Namely ΔSn=xn-xn-1...(1), when |ΔSn|≤4...(2), Sn=Sn-1+ΔSn= Sn-1+xn-xn-1... (3), when ΔSn≥6...(4), Sn=Sn-1-(10-ΔSn)=Sn-1-[10- (xn-xn-1)]...(5), when ΔSn≤-6 ...(6), Sn=Sn-1+(10+ΔSn)=Sn-1+[10+(xn-xn-1) ]...(7), Sn-1=Sn...(8), xn-1=xn...(9). Accordingly the present position can be obtained by computing the formulas (1)W(9) every time the sampling time is reached. When the maximum value of the movement of the object to be detected is 49 increments or less, the detection is performed by a two- digit encoder.
COPYRIGHT: (C)1980,JPO&Japio
JP6611379A 1979-05-30 1979-05-30 Position detecting method Pending JPS55158511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6611379A JPS55158511A (en) 1979-05-30 1979-05-30 Position detecting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6611379A JPS55158511A (en) 1979-05-30 1979-05-30 Position detecting method

Publications (1)

Publication Number Publication Date
JPS55158511A true JPS55158511A (en) 1980-12-10

Family

ID=13306498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6611379A Pending JPS55158511A (en) 1979-05-30 1979-05-30 Position detecting method

Country Status (1)

Country Link
JP (1) JPS55158511A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59103113A (en) * 1982-12-03 1984-06-14 Hitachi Ltd Positioning servo control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59103113A (en) * 1982-12-03 1984-06-14 Hitachi Ltd Positioning servo control system

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