Water level measurement system, etc.
JP2026100902APending Publication Date: 2026-06-22EIBITSUTO
Patent Information
- Application Number
- JP2024215121
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-06-22
AI Technical Summary
Technical Problem
Existing water level measurement systems using millimeter waves struggle to distinguish reflections from water from those from other objects in flowing rivers, leading to inaccurate measurements.
Method used
A system that analyzes the signal components of reflected millimeter waves for time difference, phase difference, and amplitude, combined with camera imagery, to identify whether the reflection is from water or an object, and uses a learning process to improve identification accuracy.
Benefits of technology
Accurately measures river water levels and recognizes objects floating in rivers, enhancing measurement precision and enabling detection of illegal dumping.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026100902000001_ABST
Abstract
By distinguishing whether the reflected millimeter waves emitted towards the river are reflected from the river water or from an object, the accuracy of water level measurements can be improved. The system also identifies what the object is if it is not water. [Solution] The system analyzes the signal components of the reflected wave and identifies whether the reflected wave is from water or an object based on the time difference, phase difference, and amplitude value compared to the outgoing wave. This identification is learned with each measurement, improving the identification ability. In addition, the system uses images captured by a camera to identify what the object is, and the identification results are also used in the learning process to improve the identification accuracy.
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Citation Information
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