An automatic measurement system for sweeping brush wear of sweeping vehicles based on autonomous driving

By installing a distance measuring device and a cloud system on the autonomous sweeper, brush wear is detected and route compensation or replacement is performed, solving the cleaning error problem caused by brush wear, improving cleaning accuracy and providing brush life data.

CN115451831BActive Publication Date: 2025-09-23GUANGZHOU WERIDE TECH LTD CO
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Patent Information

Application Number
CN202211144566.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-20
Publication Date
2025-09-23
Estimated Expiration
2042-09-20

AI Technical Summary

Technical Problem

The sweeping brushes of self-driving sweepers will wear out after a period of use, resulting in a decrease in the edge cleaning effect. Existing technologies make it difficult to effectively detect and compensate or replace the sweeping brushes to maintain cleaning accuracy.

Method used

A distance measuring device that combines an automatic measuring unit with a slide rail measures the distance from the end of the brush to the vehicle body. The degree of wear is calculated through the cloud, and the cleaning route is adjusted or a replacement prompt is issued when necessary to detect and compensate for brush wear.

Benefits of technology

The edge cleaning accuracy of the autonomous sweeper has been improved, and the service life of the sweeping brush has been calculated to provide data support for research and development to ensure the cleaning effect.

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Abstract

The present invention discloses an automatic measurement system for the brush wear of a sweeper based on autonomous driving. When the sweeper enters a detection area, the laser sensor slides along the slide rail under the action of a drive mechanism and a pulley until it touches the end of the brush. Then, a laser rangefinder emits a laser beam to the laser sensor, measures the distance from the end of the brush to the outer shell of the sweeper, and reports the measured value to the cloud. The cloud calculates the degree of brush wear. When the degree of brush wear is less than a threshold, the sweeper's cleaning route positioning is adjusted according to the degree of brush wear, automatically compensating for the brush wear and maintaining the accuracy of edge cleaning. When the brush wear is greater than or equal to the threshold, a brush replacement prompt is issued to remind the operation and maintenance personnel to replace the sweeper's brush. This system realizes the wear detection of the sweeper's brush and performs edge compensation or timely replacement of the sweeper's brush according to the degree of brush wear, thereby improving the edge cleaning accuracy of the sweeper.
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