Guide information display device and crane

Patent metadata

Field	Value
Publication number	US-11542127-B2
Application number	US-201816632622-A
Country	US
Kind code	B2
Filing date	Jul 19, 2018
Priority date	Jul 21, 2017
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

To accurately present guide information which expresses the shape and height of a hoisting load and an object located near the hoisting load. A guide information display device is equipped with: a data acquisition unit provided with a camera for capturing an image of a hoisting load region which includes at least a hoisting load and the ground surface below the hoisting load from above the hoisting load, and a laser scanner for obtaining a data point group in the hoisting load region; a data processing unit for estimating the top surface of the hoisting weight, the ground surface, and the top surfaces of objects, on the basis of the obtained data point group, and generating guide frames which surround the top surfaces of the hoisting weight and objects; and a data display unit which displays guide information obtained by overlapping the generated guide frames and the captured image with one another.

First claim

The invention claimed is:

1. A guide information display apparatus, comprising:
a data display section;
a data acquisition section that acquires image data of a suspended load region taken by a camera, and surface shape data of an object in the suspended load region scanned by a laser scanner, and
a data processing section that creates a guide frame corresponding to the object based on the surface shape data and causes the guide frame to be displayed on the data display section while superimposing the created guide frame on the object in the image data,
wherein the surface shape data is point cloud data acquired by scanning the object in the suspended load region from a top surface, and the object includes a suspended load and a ground object in the suspended load region.

2. The guide information display apparatus according to claim 1 , wherein the data processing section structures the point cloud data into a hierarchy from a distance direction from the laser scanner, cluster points which belong to a same layer and for which an inter-point distance is equal to or smaller than a predetermined value, and creates the guide frame for each of the cluster points of the point cloud data.

3. The guide information display apparatus according to claim 2 , wherein the data processing section causes an elevation value of each cluster from a ground surface to be displayed in association with the guide frame on the data display section as guide information.

4. The guide information display apparatus according to claim 3 , wherein the data processing section causes a height of an underside of the suspended load from a ground surface to be displayed on the data display section as guide information.

5. A work machine, comprising the guide information display apparatus according to claim 3 .

6. A work machine, comprising the guide information display apparatus according to claim 3 , wherein
the data processing section causes path information on the suspended load or axis information on a boom of the work machine to be displayed as guide information while superimposing the path information or the axis information on the image data.

7. A work machine, comprising the guide information display apparatus according to claim 4 .

8. A work machine, comprising the guide information display apparatus according to claim 4 , wherein
the data processing section causes path information on the suspended load or axis information on a boom of the work machine to be displayed as guide information while superimposing the path information or the axis information on the image data.

9. The guide information display apparatus according to claim 2 , wherein the data processing section causes a height of an underside of the suspended load from a ground surface to be displayed on the data display section as guide information.

10. A work machine, comprising the guide information display apparatus according to claim 9 .

11. A work machine, comprising the guide information display apparatus according to claim 9 , wherein
the data processing section causes path information on the suspended load or axis information on a boom of the work machine to be displayed as guide information while superimposing the path information or the axis information on the image data.

12. A work machine, comprising the guide information display apparatus according to claim 2 .

13. A work machine, comprising the guide information display apparatus according to claim 2 , wherein
the data processing section causes path information on the suspended load or axis information on a boom of the work machine to be displayed as guide information while superimposing the path information or the axis information on the image data.

14. A work machine, comprising the guide information display apparatus according to claim 1 .

15. A work machine, comprising the guide information display apparatus according to claim 1 , wherein
the data processing section causes path information on the suspended load or axis information on a boom of the work machine to be displayed as guide information while superimposing the path information or the axis information on the image data.

Assignees

• Tadano Ltd
• The School Corporation Kansai Univ

Inventors

• Kosaka Takayuki
• Ishikawa Iwao
• Kubota Satoshi
• Tanaka Shigenori
• Nakamura Kenji
• Yamamoto Yuhei
• NAKAHARA Masaya

Classifications

• B66C13/46 Primary

  Position indicators for suspended loads or for crane elements · CPC title

• B66C13/22

  for electric drives (transmitting control pulses B66C13/40; systems or devices of general application H02P) · CPC title

• B66C13/00

  Other constructional features or details · CPC title

• B66C2700/08

  Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists · CPC title

• H04N7/18 Primary

  Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast · CPC title