为特种设备提供检验检测保障。锅炉、压力容器（含气瓶）、压力管道、电梯、起重机械、客运索道、大型游乐设施和场（厂）内专用机动车辆制造、安装、改造、修理的监督检验与定期检验·锅炉水（介）质定期检验·特种设备安全附件定期检验·特种设备金属结构件无损检测与型式试验·特种设备操作人员与管理人员培训
To solve the problems of low efficiency and insufficient accuracy of traditional elevator traction wheel detection methods,and the fact that other detection methods have high cost and poor adaptability to the environments such as oil pollution and stray light,a set of elevator traction wheel wear detection system based on linear structured light is designed in this paper.Firstly,the system is calibrated by camera and light plane,and then the deformation structured light strip image irradiated by the line structured light emitter irradiated in the rope groove of the elevator traction wheel is collected by the industrial camera,and the center line of the light strip is extracted by using the improved gray center of gravity method,and the three-dimensional coordinates of each point on the light strip in the area are screened after the extraction is completed,and then the coordinate information of the extreme point is analyzed and processed,so as to realize the real-time calculation of the depth of the rope groove.Through experiments,it is proved that the system can detect the wear of the rope groove in a non-contact manner,and the degree of oil pollution and other factors is small,and the accuracy can reach 0.1 mm,which has high practicability and reliability.
Oil and gas pipelines exposed to oil and gas mixtures and H2S during long-term service are susceptible to stress-induced cracks or other forms of damages. Thus， regular inspection and maintenance of pipelines have become an industry consensus. In order to promote the technical advancement of pipeline robots for enabling the safe pipeline operations， focusing on passive pipeline robots， active pipeline robots， and external pipeline inspection robots， this paper systematically reviews the overall trends of pipeline robots in recent years， introduces the structural classification and inspection modes of pipeline robots， and compare them in terms of overall performance， applicable pipelines and field application. It is indicated that passive and wheeled pipeline robots are superior to other types of walking robots， and represent the mainstream of future pipeline robots. Moreover， it is proposed that the pipeline robots will evolve to predominantly address the issues in functions， communication， pattern recognition， positioning， and inspection techniques.
