JP2019095231A - 長さ計測器、コード及びコード変換方法 - Google Patents
長さ計測器、コード及びコード変換方法 Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34776—Absolute encoders with analogue or digital scales
- G01D5/34792—Absolute encoders with analogue or digital scales with only digital scales or both digital and incremental scales
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
- G01D5/34715—Scale reading or illumination devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06018—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking one-dimensional coding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/22—Analogue/digital converters pattern-reading type
- H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
- H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
- H03M1/285—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding of the unit Hamming distance type, e.g. Gray code
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34746—Linear encoders
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- Theoretical Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Spectrometry And Color Measurement (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
(1)変換対象の桁よりも上位の桁の数値の合計が0又は偶数の場合には、変換対象の桁の数値を維持する。
(2)変換対象の桁よりも上位の桁の数値の合計が奇数であり、且つ変換対象の桁の数値が1である場合には、変換対象の桁の数値を維持する。
(3)変換対象の桁よりも上位の桁の数値の合計が奇数であり、且つ変換対象の桁の数値が2である場合には、変換対象の桁の数値を0に変換する。
(4)変換対象の桁よりも上位の桁の数値の合計が奇数であり、且つ変換対象の桁の数値が0である場合には、変換対象の桁の数値を2に変換する。
2 読取部
3 マイコン
4 通信装置
7 格納部
7a メジャー
8 LED
9 フォトトランジスタ
Claims (5)
- それぞれが1つの異なる数字に割り当てられたパターンが複数配列され、前記複数のパターンのそれぞれは、N進数(Nは3以上)の数値が割り当てられた桁を複数有し、各桁は割り当てられている数値に応じた異なる色を有し、前記複数のパターンは昇順あるいは降順に配列され、配列方向に隣り合うパターン同士のハミング距離は1であり、前記隣り合うパターン同士の桁間の数値の変化量は1であるコードが印刷されたメジャーと、
前記パターンを光学的に読み取る読取手段と、
前記読取手段による読み取り結果から、測定対象の長さを計測する計測手段と、
を備えることを特徴とする長さ計測器。 - 前記読取手段は発光手段を備え、
前記発光手段から照射される光及び前記読取手段で受光される反射光は、赤外線、可視光線及び紫外線の少なくとも1つであることを特徴とする請求項1に記載の長さ計測器。 - それぞれが1つの異なる数字に割り当てられたパターンが複数配列された、光学的に読み取り可能なコードにおいて、
前記複数のパターンのそれぞれは、N進数(Nは3以上)の数値が割り当てられた桁を複数有し、
前記複数のパターンは昇順あるいは降順に配列され、
配列方向に隣り合うパターン同士のハミング距離は1であり、
前記隣り合うパターン同士の桁間の数値の変化量は1であることを特徴とするコード。 - 前記各パターンの各桁は、割り当てられている数値に応じた異なる色を有することを特徴とする請求項3に記載のコード。
- 第1の3進グレイコードを第2の3進グレイコードに変換するコード変換方法において、
前記第1の3進グレイコードの下位桁から順に変換対象の桁を設定し、
前記変換対象の桁よりも上位の桁の数値の合計が、0の場合、偶数の場合、あるいは奇数であり且つ前記変換対象の桁の数値が1の場合には、前記変換対象の桁の数値をそのまま維持し、
前記変換対象の桁よりも上位の桁の数値の合計が奇数であり、前記変換対象の数値が0の場合には、前記変換対象の桁の数値を2に変換し、
前記変換対象の桁よりも上位の桁の数値の合計が奇数であり、前記変換対象の数値が2の場合には、前記変換対象の桁の数値を0に変換することを特徴とするコード変換方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2017222727A JP7058983B2 (ja) | 2017-11-20 | 2017-11-20 | 長さ計測器、コード及びコード変換方法 |
US16/177,706 US10803271B2 (en) | 2017-11-20 | 2018-11-01 | Length measuring instrument, code, and code conversion method |
US16/679,931 US11334737B2 (en) | 2017-11-20 | 2019-11-11 | Length measuring instrument, code, and code conversion method |
JP2021185047A JP7200333B2 (ja) | 2017-11-20 | 2021-11-12 | コード変換方法 |
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JP2017222727A JP7058983B2 (ja) | 2017-11-20 | 2017-11-20 | 長さ計測器、コード及びコード変換方法 |
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JP2019211286A (ja) * | 2018-06-01 | 2019-12-12 | 富士通コンポーネント株式会社 | 計測器および光学読取器 |
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JP7411325B2 (ja) * | 2018-12-26 | 2024-01-11 | 富士通コンポーネント株式会社 | 計測器 |
CN113375600B (zh) * | 2021-07-15 | 2023-03-24 | 河北工业大学 | 一种三维测量方法、装置和电子设备 |
CN115223735A (zh) * | 2022-05-12 | 2022-10-21 | 中核核电运行管理有限公司 | 压水堆控制棒棒位判定方法、装置以及棒位测量系统 |
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- 2018-11-01 US US16/177,706 patent/US10803271B2/en active Active
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- 2019-11-11 US US16/679,931 patent/US11334737B2/en active Active
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JPH0735535A (ja) * | 1993-07-16 | 1995-02-07 | Japan Aviation Electron Ind Ltd | メジャー付き送信器及びメジャー信号受信・記録器 |
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JP2019211286A (ja) * | 2018-06-01 | 2019-12-12 | 富士通コンポーネント株式会社 | 計測器および光学読取器 |
JP7118748B2 (ja) | 2018-06-01 | 2022-08-16 | 富士通コンポーネント株式会社 | 計測器および光学読取器 |
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JP7058983B2 (ja) | 2022-04-25 |
US11334737B2 (en) | 2022-05-17 |
US20190156089A1 (en) | 2019-05-23 |
US10803271B2 (en) | 2020-10-13 |
US20200074128A1 (en) | 2020-03-05 |
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