Compaction management system

Patent metadata

Field	Value
Publication number	US-12104352-B2
Application number	US-202017435231-A
Country	US
Kind code	B2
Filing date	Mar 12, 2020
Priority date	Mar 19, 2019
Publication date	Oct 1, 2024
Grant date	Oct 1, 2024

Abstract

A compaction management system includes a position calculation unit that, when a bucket is pressed against a compaction target ground, calculates a position of the bucket, a rolling compaction force calculation unit that, when the bucket is pressed against the compaction target ground, calculates a rolling compaction force applied to the compaction target ground using the attitude of the machine body, the attitude of the attachment, a pressure of a cylinder, and dimensions of the attachment, a rolling compaction record creation unit that creates a rolling compaction record in which the position calculated by the position calculation unit is associated with the rolling compaction force calculated by the rolling compaction force calculation unit, and a storage control unit that causes a storage device to store the rolling compaction record created by the rolling compaction record creation unit.

First claim

The invention claimed is:

1. A compaction management system, comprising:
a work machine including;
a machine body,
a work device attached to the machine body rotatably and vertically,
a rotary device capable of hydraulically rotating the work device,
a machine body attitude detection device that detects an attitude of the machine body,
a work device attitude detection device that detects an attitude of the work device,
a position detection device that detects a position of the machine body,
an orientation detection device that detects an orientation of the machine body,
a pressure detection device that detects a pressure of the rotary device, and
a dimension storage device that stores dimensions of the work device;
a position calculation unit that, when the work device is pressed against a compaction target ground, calculates a rolling compaction position which is a pressing position of the work device against the compaction target ground using the attitude of the machine body detected by the machine body attitude detection device, the attitude of the work device detected by the work device attitude detection device, the position of the machine body detected by the position detection device, and the orientation of the machine body detected by the orientation detection device;
a rolling compaction force calculation unit that, when the work device is pressed against the compaction target ground, calculates a rolling compaction force applied to the compaction target ground using the attitude of the machine body detected by the machine body attitude detection device, the attitude of the work device detected by the work device attitude detection device, the pressure detected by the pressure detection device, and the dimensions of the work device stored in the dimension storage device;
a rolling compaction record creation unit that creates a rolling compaction record in which the rolling compaction position is associated with the rolling compaction force calculated by the rolling compaction force calculation unit;
a storage device; and
a storage control unit that causes the storage device to store the rolling compaction record created by the rolling compaction record creation unit.

2. The compaction management system according to claim 1 , wherein
the work machine further includes a time detection device that detects a time when the work device is pressed against the compaction target ground, and
the rolling compaction record creation unit creates the rolling compaction record in which the rolling compaction position, the rolling compaction force calculated by the rolling compaction force calculation unit, and the time detected by the time detection device are associated with each other.

3. The compaction management system according to claim 1 , wherein the storage device is disposed outside the work machine.

4. The compaction management system according to claim 1 , further comprising:
a display device; and
a display control unit that causes the display device to display the rolling compaction record created by the rolling compaction record creation unit.

5. The compaction management system according to claim 1 , further comprising:
a target value storage device that stores target values of a rolling compaction force at a plurality of locations of the compaction target ground; and
a rolling compaction state deriving unit that derives a rolling compaction state at a specific position of the compaction target ground using the target values stored in the target value storage device and the rolling compaction record stored in the storage device.

6. The compaction management system according to claim 5 , wherein the rolling compaction state is a state of whether the rolling compaction force has been applied.

7. The compaction management system according to claim 5 , wherein the rolling compaction state is a state of whether the rolling compaction force has reached the target value.

8. The compaction management system according to claim 5 , wherein the target value varies with a position on the compaction target ground.

9. The compaction management system according to claim 5 , further comprising a target value setting unit that sets the target values based on a shape of the compaction target ground.

10. The compaction management system according to claim 5 , further comprising:
a rolling compaction state storage device capable of storing the rolling compaction state; and
a rolling compaction state storage control unit that causes the rolling compaction state storage device to store the rolling compaction state derived by the rolling compaction state deriving unit.

11. The compaction management system according to claim 5 , further comprising:
a rolling compaction state display device capable of displaying the rolling compaction state; and
a rolling compaction state display control unit that causes the rolling compaction state display device to display the rolling compaction state derived by the rolling compaction state deriving unit.

Assignees

• Kobelco Constr Mach Co Ltd

Inventors

• Fujiwara Sho
• Kamimura Yusuke
• Yamazaki Yoichiro
• Yamashita Koji
• Noda Daisuke
• Yoshihara Hideki

Classifications

• E02F9/264 Primary

  Sensors and their calibration for indicating the position of the work tool · CPC title

• E02F3/437

  providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant · CPC title

• E01C19/288

  adapted for monitoring characteristics of the material being compacted, e.g. indicating resonant frequency, measuring degree of compaction, by measuring values, detectable on the roller; using detected values to control operation of the roller, e.g. automatic adjustment of vibration responsive to such measurements · CPC title

• E02F3/967 Primary

  of compacting-type tools (compacting tools in combination with special-purpose dredges or soil-shifting machines E02F5/30) · CPC title