Stick-slip detection device, stick-slip detection method, and storage medium
By measuring, determining, calculating, and testing the combination of components, the stick-slip phenomenon can be detected with high accuracy, solving the problem that existing technologies cannot detect minute stick-slip phenomena, ensuring stable equipment operation and reducing the risk of accidents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AZBIL CORP
- Filing Date
- 2025-12-03
- Publication Date
- 2026-06-12
AI Technical Summary
Existing technologies cannot accurately detect stick-slip phenomena, especially minute stick-slip phenomena that change only once, which makes it impossible to detect poor sliding in time and increases the risk of accidents.
The measuring unit measures the displacement of the movable part, the determining unit determines the range in which the difference between the measured value and the set value remains unchanged within a specified period, the calculating unit calculates the index value, the detection unit detects an abnormality when the index value reaches the threshold, and the output unit outputs the detection result.
It achieves high-precision detection of minute sticky and slippery surfaces, reduces false detections, ensures stable equipment operation, and issues alarms when necessary to reduce the risk of accidents.
Smart Images
Figure CN122192718A_ABST
Abstract
Claims
1. A stick-slip detection device, characterized in that, have: The measuring unit measures the displacement of the movable part having a contact sliding part; The determining unit determines the interval in which the sign of the difference between the measured value of the movable part and the set value of the movable part, as determined by the measuring unit, does not change during a predetermined period; The calculation unit calculates the index value based on the measured value of the movable part in the interval determined by the determination unit and the set value of the movable part; as well as The detection unit detects an abnormality in the movable part when the index value calculated by the calculation unit is above a predetermined threshold.
2. The stick-slip detection device according to claim 1, characterized in that, The determining part Within the interval, an interval is defined that begins a predetermined time after the moment the difference was generated and ends a predetermined time before the moment the sign of the difference changes.
3. The stick-slip detection device according to claim 1, characterized in that, The calculation unit calculates the absolute value of the slope of the displacement of the set value of the movable part in the interval determined by the determination unit relative to the slope of the displacement of the measured value of the movable part, as an index value.
4. The stick-slip detection device according to claim 1, characterized in that, It also has an output unit that outputs the detection results obtained by the detection unit.
5. The stick-slip detection device according to claim 4, characterized in that, If the number of abnormalities detected by the detection unit in the movable part exceeds a threshold, the output unit will issue an alarm to the external device.
6. A stick-slip detection method, which is a stick-slip detection method performed by a stick-slip detection device, characterized in that, include: The measurement process involves measuring the displacement of the movable part with the contact sliding part; The process involves determining the interval within which the sign of the difference between the measured value of the movable part and the set value of the movable part, as determined by the measurement process, remains unchanged during a specified period. The process is calculated, and an index value is calculated based on the measured value of the movable part and the set value of the movable part in the interval determined by the process; as well as In the detection process, if the index value calculated by the calculation process is above a predetermined threshold, an abnormality in the movable part is detected.
7. A storage medium for storing a stick-slip detection program, characterized in that, The stick-slip detection program causes the computer to perform the following steps: The measurement procedure involves measuring the displacement of the movable part with the contact sliding part; The determination step involves determining the range in which the sign of the difference between the measured value of the movable part and the set value of the movable part, determined through the measurement step, remains unchanged within a specified period. The calculation step calculates the index value based on the measured value of the movable part in the interval determined by the determination step and the set value of the movable part; as well as The detection step involves detecting an abnormality in the movable part if the index value calculated through the calculation step is above a predetermined threshold.