Earthwork measuring device and method for excavator

By installing a depth sensor under the excavator boom and combining it with a protection device and controller, high-precision, fully automated, real-time estimation of the excavator's earthwork volume is achieved, solving the problems of inaccurate measurement and poor environmental adaptability in existing technologies, and making it suitable for various construction scenarios.

CN122192166APending Publication Date: 2026-06-12WEICHAI POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WEICHAI POWER CO LTD
Filing Date
2026-05-15
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing excavator earthwork measurement methods suffer from poor accuracy, stability, operational continuity, and environmental adaptability. In particular, they are deficient in terms of lidar installation location, scanning area, protection method, and real-time earthwork calculation, resulting in inaccurate measurement results and difficulty in achieving real-time feedback.

Method used

A depth sensor is installed under the excavator boom, combined with a protection device and controller, to achieve near-field measurement and active protection. Through a full-bucket intelligent triggering mechanism that integrates multi-dimensional state data, a fully automated operation data closed loop is constructed. Combined with dynamic point cloud processing, high-precision real-time estimation of the total volume of earth and rock in the bucket is achieved.

Benefits of technology

It achieves high-precision, fully automated real-time estimation of earthwork volume, avoids boom obstruction and environmental interference, has excellent engineering robustness and environmental adaptability, saves labor costs, and is suitable for various construction environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure provides a kind of excavator earthwork measuring device and method, it is related to excavator technical field, wherein excavator earthwork measuring device includes depth sensor, protection device and controller.Depth sensor is installed in the swing arm of excavator and is located below the swing arm, its scanning area covers the entire shovel operation area, for collecting the point cloud data of shovel operation area.Protection device has protective cover for opening and closing the field of view of depth sensor.Controller controls the opening and closing of protective cover according to the current multidimensional state data of excavator, and triggers the preset earthwork estimation process when excavator is in full bucket lifting state, to generate the total volume estimation value of earthwork in the bucket of excavator based on the point cloud data collected by depth sensor when protective cover is opened.The device adopts near-field measurement and active protection integrated design, so that depth sensor can collect point cloud data at a relatively close distance and optimal viewing angle, and accurately estimate the total volume of earthwork in the bucket.
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