JPS5582977A - Detecting method of leftover in container - Google Patents

Detecting method of leftover in container

Info

Publication number
JPS5582977A
JPS5582977A JP15900478A JP15900478A JPS5582977A JP S5582977 A JPS5582977 A JP S5582977A JP 15900478 A JP15900478 A JP 15900478A JP 15900478 A JP15900478 A JP 15900478A JP S5582977 A JPS5582977 A JP S5582977A
Authority
JP
Japan
Prior art keywords
vessel
light
leftovers
switch
reflected
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
JP15900478A
Other languages
Japanese (ja)
Inventor
Shoji Doi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP15900478A priority Critical patent/JPS5582977A/en
Publication of JPS5582977A publication Critical patent/JPS5582977A/en
Pending legal-status Critical Current

Links

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  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE: To make possible automatic detection and to increase the holding capacity by detecting the conditions of the reflected light in the vessel from a reflection member mounted on the inner surface thereof as the vessel is being static condition with respect to a photoelectric switch.
CONSTITUTION: A vessel having a reflecting member 6 such as mirror on the inner bottom is conveyed with a conveyor on a frame facing upward and detection is made to determine the existence of leftovers in the vessel when it reaches the frame 8. First, light is projected into the vessel with respective reflecting photoelectric switchs on through a cable 13 or the like. The light 16 reflected turns back to the photoelectric switches if there is no leftover in the vessel 5. On the other hand, if there is some leftovers therein, no light reflected returns to the switch. Or if there is some leftovers therein spreading thin over the reflection member 6, the light is returns to the switch but reduced in the intensity.
COPYRIGHT: (C)1980,JPO&Japio
JP15900478A 1978-12-19 1978-12-19 Detecting method of leftover in container Pending JPS5582977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15900478A JPS5582977A (en) 1978-12-19 1978-12-19 Detecting method of leftover in container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15900478A JPS5582977A (en) 1978-12-19 1978-12-19 Detecting method of leftover in container

Publications (1)

Publication Number Publication Date
JPS5582977A true JPS5582977A (en) 1980-06-23

Family

ID=15684125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15900478A Pending JPS5582977A (en) 1978-12-19 1978-12-19 Detecting method of leftover in container

Country Status (1)

Country Link
JP (1) JPS5582977A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016004025A (en) * 2014-06-19 2016-01-12 株式会社ダイフク Existence determination device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016004025A (en) * 2014-06-19 2016-01-12 株式会社ダイフク Existence determination device

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