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dc.descriptionB.SC.(HONS)COMPUTER ENG.en_GB
dc.description.abstractThis Final Year Project focused on producing a working prototype of a collision avoidance system for the retractable Radio-Protection (RP) arm, in the Train Inspection Monorail (TIM), located in European Organization for Nuclear Research (CERN)’s Large Hadron Collider (LHC) Tunnel. This retractable arm is deployed in specific regions in the tunnel, after the beams have been dumped, to take radiation and oxygen level measurment around LHC equipment. In turn, these measurements allow the CERN Radiation Protection Group to assess any health hazards inside the LHC tunnel, before access to it is permitted to the maintenance personnel. This prototype uses a series of eight distance measurement sensors based on the Infrared (IR) Time-of-Flight (ToF) technology, which scans a safety volume underneath the TIM and raises an alarm once this volume is breached. Namely, the TeraRanger One (TR1) IR ToF distance measurement sensor, is used, which is interfaced via the TeraRanger Hub (TRH), by TeraBee. A Cortex-M microcontroller, is mounted on the TRH, which in turn is connected to the distance measurement sensors via a multiplexed Universal Synchronous/Asynchronous Receiver/Transmitter (USART) connection among all eight sensors. The Micro Controller Unit (MCU) also provides an interface for the user maintaining the collision avoidance system, via a second, dedicated USART connection. The MCU’s Direct Memory Access (DMA) functionalities are also used to transfer the data from the TR1, directly into memory. Sensor characterisation tests were also devised and performed. The sensor characterisation tests obtained calibration results, by which the accuracy of the TR1 sensors was improved, established any effects that prolonged use of the TR1 might have on the distance measurement, due to components heating up over time, as well as the effects on the distance measurements, when the Field-of-View (FOV) of the TR1 was partially covered. For the specific role of aiding in the data acquisition during the sensor characterisation tests, a testing rig was designed and constructed. This was designed to ensure that the distance from the sensor array to the surface being scanned, was always known during testing.en_GB
dc.subjectEuropean Organization for Nuclear Researchen_GB
dc.subjectLarge Hadron Collider (France and Switzerland)en_GB
dc.subjectColliders (Nuclear physics)en_GB
dc.titleCollision avoidance system for the RP survey and visual inspection train in the CERN large hadron collideren_GB
dc.rights.holderThe copyright of this work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder.en_GB
dc.publisher.institutionUniversity of Maltaen_GB
dc.publisher.departmentFaculty of Information and Communication Technology. Department of Microelectronics and Nanoelectronicsen_GB
dc.contributor.creatorGrech, Leander-
Appears in Collections:Dissertations - FacICT - 2017
Dissertations - FacICTMN - 2017

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