Title:
CONTROLLING METHOD AND CONTROLLING DEVICE FOR CRANE
Document Type and Number:
Japanese Patent JP3241601
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a controlling method, by which a bucket can be safely conveyed while an automatic operation is carried out without any operator, for a crane.
SOLUTION: On the basis of an action schedule for a crane for conveying a bucket 3 from the conveyance start position A to a target position B, a predicted locus for the bucket 3 during its conveyance is computed previously. While the bucket 3 is conveyed by means of the crane 10 from the conveyance start position A to the target position B, the three-dimensional coordinates of the bucket 3 position is measured in every predetermined time by means of a total station 23, and at the same time, it is determined whether an error between the positional coordinates on the predicted locus of the bucket 3 and the measured positional coordinates of the bucket 3 is within the allowed error range or not. If it is determined an error between the previously computed positional coordinates of the bucket 3 on the predicted locus and the measured positional coordinates of the bucket 3 exceeds the allowed error range, an operation of the crane 10 is stopped.
Inventors:
Narimasa Shirooka
Masahiro Kurimoto
Kimsho Inaba
Toshiyuki Ishii
Yoshio Aratani
Masahiro Kurimoto
Kimsho Inaba
Toshiyuki Ishii
Yoshio Aratani
Application Number:
JP18195096A
Publication Date:
December 25, 2001
Filing Date:
July 11, 1996
Export Citation:
Assignee:
Okumura Gumi Co., Ltd.
International Classes:
B66C13/48; B66C23/00; (IPC1-7): B66C13/48; B66C23/00
Domestic Patent References:
| JP648196A | ||||
| JP5029985A | ||||
| JP826670A | ||||
| JP7117983A |
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)