A fire hydrant anti-theft water detection device and a fire hydrant anti-theft water detection method
By combining gyroscopes and water immersion sensors in fire hydrants, the rotation of the hydrant cap and water immersion status can be detected in real time. This solves the problems of false alarms and missed alarms in fire hydrant anti-theft water detection, realizes reliable anti-theft water alarm, and reduces the power consumption and installation complexity of the system.
CN115435987BActive Publication Date: 2025-12-16XIAN CHINASTAR M&C LTD
Patent Information
- Application Number
- CN202210896856.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-07-28
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2042-07-28
AI Technical Summary
Technical Problem
The existing fire hydrant anti-theft water detection methods suffer from unstable detection results and are prone to false alarms and missed alarms.
Method used
A gyroscope is used to sample the angular velocity of the cap in real time, and a water immersion sensor is used to detect whether there is water inside the cap. The rotation of the cap is determined by calculating the mean and standard deviation of the angular velocity, thus realizing a reliable anti-theft water alarm.
Benefits of technology
It effectively reduces false alarms and false negatives, improves detection reliability, reduces power consumption, and simplifies the installation process.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115435987B_ABST
Abstract
The embodiment of the application provides a fire hydrant anti-theft water detection device and a fire hydrant anti-theft water detection method, the device is located in a cover, the opening mode of the cover is a rotating mode, and the detection device comprises a gyroscope and a processor. The gyroscope is used for real-time sampling of the angular rate of the cover. The processor is used for calculating the mean value and the standard deviation of a group of angular rates collected at a first sampling time interval within a first sampling time when the angular rate is greater than a first threshold value. When the mean value of the angular rate is greater than a second threshold value and the standard deviation σ of the angular rate satisfies 2° / s≤σ<5° / s, it is determined that the cover has rotated, and the first threshold value is less than the second threshold value.
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Citation Information
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