JPS564003A - System for detecting edge of moving body - Google Patents
System for detecting edge of moving bodyInfo
- Publication number
- JPS564003A JPS564003A JP7866379A JP7866379A JPS564003A JP S564003 A JPS564003 A JP S564003A JP 7866379 A JP7866379 A JP 7866379A JP 7866379 A JP7866379 A JP 7866379A JP S564003 A JPS564003 A JP S564003A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- time series
- photoelectric
- rising
- moving average
- 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.)
- Granted
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE: To remove occurrence of any erroneous operation and detect edges with high accuracy by detecting the rising or falling point of a differential signal between the time series signal of a photoelectric output and its moving average signal.
CONSTITUTION: Photoelectric elements of an array 4 provided with a plurality of photoelectric elements arranged in a line are respectively subjected to sampling scanning, and the time series signals of the photoelectric outputs from the photoelectric elements respectively by means of a sampling and holding circuit 8, an amplifier 9 and an A/D converter 10. The moving average signal of the time series signal of a predetermined average number is obtained by resistors 11 and 12, an addition circuit 13, and a dividing circuit 14. The differential signal between the time series signal and the moving average signal is sought by subtraction circuits 15 and 16. The rising or falling time point of this differential signal is detected and the position of the edge is detected by the rising or falling time point.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7866379A JPS564003A (en) | 1979-06-23 | 1979-06-23 | System for detecting edge of moving body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7866379A JPS564003A (en) | 1979-06-23 | 1979-06-23 | System for detecting edge of moving body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS564003A true JPS564003A (en) | 1981-01-16 |
JPS6226402B2 JPS6226402B2 (en) | 1987-06-09 |
Family
ID=13668093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7866379A Granted JPS564003A (en) | 1979-06-23 | 1979-06-23 | System for detecting edge of moving body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS564003A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61134610A (en) * | 1984-12-04 | 1986-06-21 | ケーニツヒ・ウント・バウエル・アクチエンゲゼルシヤフト | Measuring head |
-
1979
- 1979-06-23 JP JP7866379A patent/JPS564003A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61134610A (en) * | 1984-12-04 | 1986-06-21 | ケーニツヒ・ウント・バウエル・アクチエンゲゼルシヤフト | Measuring head |
Also Published As
Publication number | Publication date |
---|---|
JPS6226402B2 (en) | 1987-06-09 |
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