JPS55158511A - Position detecting method - Google Patents
Position detecting methodInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59103113A (en) * | 1982-12-03 | 1984-06-14 | Hitachi Ltd | Positioning servo control system |
-
1979
- 1979-05-30 JP JP6611379A patent/JPS55158511A/en active Pending
Cited By (1)
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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