Examensarbeten för masterexamen // Master Theses
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- PostSTYRNING AV ROBOT MED HJÄRNVÅGOR. En förstudie av gränssnitt med öppen källkod(2018) Källander, Sara; Johansson, Martin; Chalmers tekniska högskola / Institutionen för rymd-, geo- och miljövetenskap; Chalmers University of Technology / Department of Space, Earth and EnvironmentThis report investigates possibilities and difficulties with the OpenBCI Ganglion equipment that allows for monitoring of brain activity through EEG (Electroencephalography) for non professionals. This type of technology has previously been exclusive for researchers and medical professionals and it is therefore interesting to explore new user scenarios such as controlling external devices through BCI (Brain Computer Interface). Due to limitations it is mainly the alpha waves that are examined as they have a large amplitude and are the only type of brain wave that appear to provide a satisfactory signal with regard to both control of brain activity and amplitude of the signal. Two open source pieces of software are used to manage the hardware and signal processing, OpenBCI GUI and BrainBay. Attempts are made to connect the EEG system with an external device, a Sphero robot. However, problems with the software prevented this from being completed. The conclusion is that it is possible to control external devices with brain activity using this equipment, however, only using one channel and with significant delay. The limitations in both hardware and software, and in the ability to consciously influence the brain’s activity make the system dfficult to apply in situations where high reliability or precision is required. The report is written in Swedish.
- PostTekniker för kommunikation mellan arbetsfordon: utvärdering av DSRC samt C-V2X(2019) Kjellkvist, Karin; Ahlberg, Tedd; Chalmers tekniska högskola / Institutionen för rymd-, geo- och miljövetenskap; Chalmers University of Technology / Department of Space, Earth and EnvironmentIn a transport system where vehicles are on their way of becoming autonomous, wireless transmission can be a key factor for success. Information is being shared between vehicles as well as with their surroundings. CPAC Systems in Mölndal, Sweden, are using intervehicular communication as part of their development of control systems for the automotive industry. In the present project, technologies for data transmission are evaluated based on certain criteria, such as latency, range and data rate. The project is a prestudy that lays a foundation for further testing. The evaluated technologies are Dedicated Short Range Communications (DSRC) and Cellular Vehicle-To-Everything (C-V2X). DSRC is recommended when fast data transfer is required and safety has high priority. C-V2X is recommended for data transfer with long distance between units.
- PostVägen mot ett förnyelsebart svenskt elsystem(2018) Andersson, Jenny; Farooqi, Arslan; Ahlborg Delvin, Kristine; Skvor, Eva; Schelander, Joel; Mehinagic, Ernad; Chalmers tekniska högskola / Institutionen för rymd-, geo- och miljövetenskap; Chalmers University of Technology / Department of Space, Earth and Environment