Browsing by Author "Von Petersdorff, Hagen Alexander"
Now showing 1 - 3 of 3
Results Per Page
Sort Options
- ItemAutomated real-time performance feedback and time study using computer vision technology(Stellenbosch : Stellenbosch University, 2011-10) Von Petersdorff, Hagen Alexander; Van der Merwe, A. F.; Stellenbosch University. Faculty of Engineering. Dept. of Industrial Engineering.ENGLISH ABSTRACT: This final year project report describes the creation of a computer vision solution to assess worker performance in a manual labour environment. Time-study data is gathered by the system and performance feedback is given to workers in real-time. The system consists of a Microsoft Xbox Kinect camera, connected via USB to a PC. The Kinect camera is used alongside OpenNI software to perform skeletal-tracking on the worker, and this data is processed by an application created in C++ to perform cycle recognition. Performance is calculated by assessing the time period between successive cycles and simple feedback is given to the worker after each cycle by an LCD display. Performance data are stored for subsequent analysis.
- ItemIdentifying and quantifying maintenance improvement opportunities in physcial asset management(Stellenbosch : Stellenbosch University, 2013-12) Von Petersdorff, Hagen Alexander; Vlok, P. J.; Schutte, C. S. L.; Stellenbosch University. Faculty of Engineering. Dept. of Industrial Engineering.ENGLISH ABSTRACT: Asset Management initiatives suffer many barriers in implementation which hinder their influence and sustainability. One of these barriers is the lack of buy-in from all levels in the organisation, due to a lack of understanding of the perceived benefits of Asset Management. The relationship between throughput and the maturity of Asset Management implementation is usually felt throughout the organisation, but is difficult to prove or quantify. Furthermore, it is di cult to isolate the effects of maintenance using traditional methods. Organisational alignment in an Asset Management project is achieved by aligning employees' views on what the deficient areas in the organisation are, and managing their expectations in what the perceived benefit of a good application of Asset Management would bring forth. However, the lack of a transparent method to convey the significance of critical areas in the system, and a clear way to communicate these problems creates a barrier in implementation. Without empirical evidence people rely on argumentative opinions to uncover problems, which tends to create friction as opinions from various factions may differ. Typically, these initiatives are constrained by available resources, and the allocation of resources to the correct areas is thus vital. In order for Asset Management initiatives to be successful there first needs to be alignment in execution through a clear understanding of which assets are critical, so that resources can be allocated effectively. In this study, this problem is thoroughly examined and solutions are sought in literature. A method is sought which seeks to isolate the effects of the maintenance function in an operation and uncover critical areas. A study is performed on methods which are typically used to create such understanding, which are shown to have shortcomings that limit their applicability. Thus a new methodology utilising simulation is created in order to overcome these problems. The methodology is validated through a case study, where it is shown that the simulation, in the context of the methodology, is highly beneficial to uncovering critical areas and achieving organisational alignment through communication of results.
- ItemPrioritising maintenance improvement opportunities in physical asset management(Southern African Institute for Industrial Engineering, 2014-11) Von Petersdorff, Hagen Alexander; Vlok, Pieter-JanPhysical Asset Management (PAM) initiatives suffer many barriers in implementation that can hinder their influence and sustainability. One of these barriers is the lack of buy-in from all levels in the organisation, due to a lack of understanding of the perceived benefits of PAM. Organisational alignment in a PAM project is achieved by aligning employees’ views on the deficient areas in the organisation, and managing their expectations of the perceived benefits of a good application of PAM. Barriers in implementation are created, however, by the lack of a transparent method for conveying the significance of critical areas in the system and by an unclear way of communicating these problems. Typically these initiatives are constrained by available resources. In order for PAM initiatives to be successful, there first needs to be an alignment in the execution through a clear understanding of which assets are critical, so that resources can be allocated effectively. In this study, this problem is thoroughly examined, and a method is sought that seeks to isolate the effects of the maintenance function in an operation and to uncover critical areas. A study is performed on the methods that are typically used to create such understanding. This study highlights the shortcomings of these methods, which limit their applicability. A new methodology is therefore created in order to overcome these problems. The methodology is validated through a case study, where it shown to be highly beneficial in uncovering critical areas and achieving organisational alignment through the communication of results.