Blueberry, Cherry and Raspberry (berry) production is a potential alternative land use opportunity in the Limpopo Province (LP) of South Africa (RSA). RSA based site selection criterion and literature is limited. Haenertsburg and an area near Pietersburg (Polokwane) were identified for berry production potential. In Haenertsburg, most viable land is held by the timber industry. In Pietersburg, soil and climatic conditions vary greatly, representing a site selection risk. Using accepted site selection processes, a study was conducted which identified the need to select land qualities and characteristics (QC’s) appropriate to berry production. The study revealed key QCs’ and secondary QCs’. Key QCs’ must be adhered to for site selection, while secondary QCs’ have site-specific application. The key land qualities are climate, soil, water, topography and management. In order to design a land rating system (LRS), specific characteristic values were cataloged per quality and per berry. Characteristic values were assigned to a land rating system where S1 (highly suitable), S2 (moderately suitable), S3 (marginally suitable), N1 (currently not suitable) and N2 (not suitable). To test the LRS, a real, but non-representative resource assessment (RA) took place. The RA revealed the further need to incorporate land limits into site selection. QCs’ and land limit data was collected from existing sources and measured in situ where the data was insufficient. Finally the RA data was applied to the LRS through the process of matching. The matching precipitated the formation of a site selection process or tool, presented on tables. Each table represents a land quality. Water and soil criteria varied per berry, while topography, water and management were common to all three berries. Additionally, the site selection tool enabled the assessment of secondary QCs’. The assessment process is conservative, allocating the lowest land rating as the overall rating. This allows for the land user to address the most limiting factor from worst to least, thereby ensuring sustainable and good land use. / Dissertation (MInstAgrar (Land-Use Planning))--University of Pretoria, 2008. / Plant Production and Soil Science / unrestricted

The current most common methods for measuring a blood vessels flow with Doppler technique requires a cable between the patient and measuring instrument. In today’s technology and the progress made in microelectronics have made it possible to manufacture ultrasonic transmitters and receivers, control electronics and antennas small enough for them to be integrated in a probe attached to the blood vessel. In order to read the flow of blood used NFC to securely send the information wireless to a smartphone or a tablet. This ensures that the cable between the patient and the measuring instrument would not be needed and the patient possibility to move would increase. So this thesis was to continue on a prototype using a Raspberry Pi and other medical equipment to approach toward the ultimate objective. So with help of filtering and amplification the target was to reduce noise and amplify the signal so that the correct data was send to the recipient’s smartphone or tablet. / De nuvarande vanligaste metoderna för att mäta upp ett blodkärls blodflöde med Doppler-teknik kräver en kabel mellan patient och mätinstrument. I dagens teknik och de framsteg som har gjorts inom mikroelektroniken har gjort det möjligt att tillverka ultraljudssändare och mottagare, styrelektronik och antenner i tillräckligt liten storlek för att de ska kunna integreras i en prob som fästs vid blodkärlet. För att kunna läsa av blodflödet används NFC för att säkert kunna skicka över information trådlöst till en smartphone eller en surfplatta. Detta medför att kabeln mellan patienten och mätinstrumentet inte skulle behövas och patientens möjlighet att röra sig skulle öka. Så det här examensarbetet gick ut på att fortsätta på en prototyp med hjälp av en Raspberry Pi och annan medicinsk utrustning för att närma sig det slutgiltiga målet. Så med hjälp av filtrering och förstärkning är målet att minska störningar och förstärka signalen så att rätt data skickas till mottagarens smartphone eller surfplatta.

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The goal of this diploma thesis is to verify the practical applicability of the Raspberry Pi platform in control applications. The work consists of choosing a suitable operating system and implementing a discrete PID algorithm. An important part of the work was the Linux OS modification and compilation. Measurement has demonstrated the usability of the platform in control applications. The result of this work is a discreet PID controller implemented as a Linux kernel module. The solution also includes a web interface as a human-machine interface.

This thesis solves the development of Power Line Monitor. The thesis also describes the specific implementation of hardware, software and results.

The essence of this work is to summarize the knowledge about 3D printing, especially with FDM technologies. Create an overview of used FDM printing materials, identify their advantages and disadvantages, technical parameters and usability. Another purpose of the thesis is to examine the print quality and its problems and specify types of surface finishes for selected materials. The content also includes remote control and monitoring of the 3D print process using the Raspberry Pi microcomputer and the print server named Octoprint.

This thesis deals with design and implementation of wireless system for automated control and monitoring of central heating. Some of the existing solutions and their characteristics are briefly introduced at first. The attention in this thesis is subsequently given to the analysis of wireless technologies and power supply methods suitable for home automation. With regard to ascertained findings, the design and subsequent implementation of system modules using Raspberry Pi, the ARM Cortex-M0+ microcontroller and the ZigBee communication modules were performed. The firmware for created modules was designed and implemented. The designed system can be controlled and monitored using a mobile application for the Android platform, whose design is also described in this thesis.

This master's thesis deals with eye movement tracking using the Raspberry Pi platform. The theoretical part describes eye anatomy, eye detection and eyetracking. A system in Python programming language was designed in the practical part. This algorithm is able to perform the eye tracking function using the Raspberry Pi platform and the RPi Camera module. The OpenCV library is used for loading and preprocessing images from the camera. A method that detects and evaluates the direction of view after a calibration is available. The accuracy of the program is tested on three vector methods and two target methods for four screen resolutions.

The master's thesis introduces cash register system currently used by Brno zoo and Starezsport Brno. The aim of the thesis was to study and describe above-mentioned systems and hardware they are interacting with, to analyze, design and create new custom cashier system. The first chapter includes the analysis of cashier systems, and overview of selected technologies for developement. Second chapter introduces developement designs and practices. The third chapter contains short system documentation and the last, fourth chapter is devoted to testing basic cashier system functionality.

his thesis focuses on optimization of Linux-based operating system for a accumulator-powered device Raspberry Pi 4. Compared to other devices commonly used in Internet of Things projects, the Raspberry Pi 4 offers many functions within one device. However, the disadvantage is the high consumption of electricity. The aim of this thesis is to achieve greatest possible savings in electricity consumption of the Raspberry Pi 4 device, with regard to functionality of the device as a server for data collection from sensors.