Master Degree / Yüksek Lisans Tezleri
Permanent URI for this collectionhttps://hdl.handle.net/11147/3008
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Master Thesis Evaluation of Scheduling Architectures for Osek/Vdx Compliant Hard Real-Time Operating Systems(Izmir Institute of Technology, 2020) Saydam, Berkay; Ayav, TolgaTechnological advancements are reflected to the vehicles as well, but it brings the challenge of adding new functionalities to vehicles without compromising safety. Tasks are used to provide functionalities which are used in car. These tasks have different characterictics. Safety and performance are two main criteria to determine characterictic of tasks. Characteristics of tasks can be classified according to their safety levels which are known as Automotive Safety Integrity Levels. Designing of hardware and software and also testing them is a long progress in automotive industry. Any changes on the design of hardware is quite costly when an ECU began to be used in field. According to my hypothesis, scheduling algorithms which are used by Central Processing Unit to determine sequences of task executions, should be well known. Besides, designing of hardware and software should be done according to these characteristics and algorithms. If not, tasks will cause serious problem like missing deadline for safety-critical component. In this thesis, the scheduling architectures are evaluated and they are determined which scheduling architectures should be used for which purpose. Besides, the advantages and disadvantages are explained.Master Thesis An Operating System for Data Acquisition and Control Applications(Izmir Institute of Technology, 1999) Ayav, Tolga; Aytaç, İsmail SıtkıThe common controllers used in industrial environments today cannot fulfill the requirements of many data acquisition and control applications. As a result of this, personal computers has become to be popular in industry, as they have been so in many areas due to the fact that today's PCs have many advantages compared with their relatively low price. In this project, a PC based embedded controller was designed for data acquisition and control purposes, and a real-time executive running on DOS operating system was developed.