高压电器2025，Vol.61Issue(8)：67-73,7.DOI:10.13296/j.1001-1609.hva.2025.08.009
Shi-tomasi角点检测算法在高压断路器机械特性测试中的应用
Application of Shi-tomasi Corner Detection Algorithm in Mechanical Characteristic Test of High Voltage Circuit Breaker
李松磊 1张宝强 2苏戈 1陈怀亮 1骆常璐 1秦政敏1
作者信息
- 1. 河南平芝高压开关有限公司,河南 平顶山 467013
- 2. 西安高压电器研究院股份有限公司,西安 710077
- 折叠
摘要
Abstract
The mechanical characteristic test of operating mechanism can effectively diagnose the mechanical faults of high-voltage circuit breaker.The commonly used mechanical characteristic testing methods include such types as installation of linear displacement sensors and angle sensors.Both types of the sensors need to be firmly installed on the operating mechanism,and different circuit breakers may require different fixtures and sensors,resulting in weak universality.Moreover,fixed installation may increase the probability of mechanical failure.At present,the use of non-contact image recognition methods to test the mechanical stroke of high-voltage circuit breakers has received wide-spread attention from researchers.In this paper a non-contact measurement method is introduced.The diagonal sec-tor markers with reflective function are pasted at the position of the movable pulling rof of operating mechanism of high-voltage circuit breaker.The markers are captured by a high-speed camera during the operation process of the high-voltage circuit breaker.The Shi-tomasi corner detection method is used to identify the center point coordinates of the sector markers in each image,calibrate the physical distance and pixel distance,thus obtaining a set of contact movement coordinate points and drawing the contact movement curve.The results show that compared with the circu-lar marker image recognition method,this research method is simple,efficient with reliable result.Compared with tra-ditional sensors,the mechanical travel curve obtained by this method is smoother and truly reflects the mechanical characteristics of the operating mechanism.This method has a good prospect for promoting the application of mechan-ical characteristic test in online monitoring outage maintenance of circuit breaker.关键词
高压断路器/机械特性/Shi-tomasi角点检测/图像识别Key words
high-voltage circuit breaker/mechanical characteristics/Shi-tomasi corner detection/image recognition引用本文复制引用
李松磊,张宝强,苏戈,陈怀亮,骆常璐,秦政敏..Shi-tomasi角点检测算法在高压断路器机械特性测试中的应用[J].高压电器,2025,61(8):67-73,7.
