Automated monitoring alarm method and system
By using laser ranging, triaxial acceleration, and dual-axis tilt data fusion technology, the sway and height change components of the suspended sign are separated. Combined with phase compensation and dynamic threshold calculation, the problem of false alarms due to height changes of the suspended sign is solved, and a high-precision alarm system is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN COSUN SIGN ENG CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-17
AI Technical Summary
Over long-term use, suspended signs may experience changes in their height above the ground due to factors such as rope aging and loosening of connecting parts. Traditional distance measurement methods cannot effectively distinguish between swaying and actual height changes, resulting in a high false alarm rate.
By employing laser ranging, triaxial acceleration, and dual-axis tilt data fusion technology, the swing trajectory analysis and frequency domain transformation are used to separate the swing component and the height change component. Combined with phase compensation algorithm and dynamic threshold calculation, the false alarm rate is reduced and the alarm accuracy is improved.
It achieves accurate acquisition of all-dimensional information of the suspended sign, accurately extracts swing frequency, amplitude and phase characteristic parameters, reduces false alarm rate, and ensures the accuracy and reliability of alarm.
Smart Images
Figure CN122408698A_ABST