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International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Wireless information transmission is easy to be suffered from various threats in an open environment. In this paper, we proposed a new type of software oriented secure system for direct wireless information transmission. We first present the special functions and requirements, which have to be satisfied during introducing the secure system. Then, we divide the secure system into three stages: normal operating stage, key presetting stage, and key replanting stage. The security, reliability and the computing complexity of this system are analyzed in this paper. Finally, we carried out this secure system by software and proved the availability.

Indiana University-Purdue University Indianapolis (IUPUI) / In autonomous driving, medical diagnosis, unmanned vehicles and many other new technologies, the neural network and computer vision has become extremely popular and influential. In particular, for classifying objects, convolutional neural networks (CNN) is very efficient and accurate. One version is the Region-based CNN (RCNN). This is our selected network design for a new implementation in an FPGA. This network identifies stop signs in an image. We successfully designed and trained an RCNN network in MATLAB and implemented it in the hardware to use in an embedded real-world application. The hardware implementation has been achieved with maximum FPGA utilization of 220 18k BRAMS, 92 DSP48Es, 8156 FFS, 11010 LUTs with an on-chip power consumption of 2.235 Watts. The execution speed in FPGA is 0.31 ms vs. the MATLAB execution of 153 ms (on the computer) and 46 ms (on GPU).

During monitoring of rear-mounted equipment, frequent rearward turning of tractor drivers in awkward postures can cause musculoskeletal disorders related to the back, neck, and shoulders. A camera-based monitoring system, consisting of one or more cameras placed on the implement and a monitor placed inside the tractor cab, has potential ergonomic benefits compared with traditional implement monitoring strategies by reducing the rearward turning and twisting movements of tractor drivers. A camera-based monitoring system was compared with two traditional monitoring strategies (direct looking and using rear-view mirrors) in a lab environment using a Tractor Air-Seeder Driving Simulator. The operator’s reaction time and response errors, head/neck movement (acceleration), and neck muscle temperature were compared for the three monitoring strategies. The camera-based monitoring system yielded significantly (α=0.05) better outcomes in terms of acceleration and muscle temperature values. No significant difference was observed for response errors.

During monitoring of rear-mounted equipment, frequent rearward turning of tractor drivers in awkward postures can cause musculoskeletal disorders related to the back, neck, and shoulders. A camera-based monitoring system, consisting of one or more cameras placed on the implement and a monitor placed inside the tractor cab, has potential ergonomic benefits compared with traditional implement monitoring strategies by reducing the rearward turning and twisting movements of tractor drivers. A camera-based monitoring system was compared with two traditional monitoring strategies (direct looking and using rear-view mirrors) in a lab environment using a Tractor Air-Seeder Driving Simulator. The operator’s reaction time and response errors, head/neck movement (acceleration), and neck muscle temperature were compared for the three monitoring strategies. The camera-based monitoring system yielded significantly (α=0.05) better outcomes in terms of acceleration and muscle temperature values. No significant difference was observed for response errors.

Ingeniero Civil Eléctrico / La malla de Plan Común de ingeniería y ciencias de la Facultad de Ciencias Físicas y Matemáticas de la Universidad de Chile, determina que los estudiantes de primer año deben cursar las asignaturas de Introducción a la Ingeniería I y II, en las cuales desarrollan proyectos de ingeniería de forma grupal; diseñando, implementando y operando sus propias soluciones conforme a problemas escalables al quehacer de la ingeniería. La asignatura de Introducción a la Ingeniería es dictada en nueve secciones, conformadas por veinte grupos de cinco alumnos cada una, esta distribución está determinada por la Universidad y permite realizar un trabajo estructurado y sistemático. Se debe considerar que para la implementación de los proyectos de estas asignaturas de Ingeniería la Universidad dispone de recursos económicos y dedicación de tiempo limitados por alumno. En este Trabajo de Memoria se implementa el diseño de una experiencia para cursos de taller de introducción a la ingeniería II. Para ello se define un plan de trabajo, se diseñan los componentes mecánicos, eléctricos y computacionales, se confecciona el material de trabajo para ser utilizado durante el desarrollo de la experiencia y se define un plan piloto para la implementación de la actividad propuesta. La actividad definida para los alumnos consiste en el diseño, implementación y puesta en marcha (u operación) de un sistema de detección y transporte de carga que realiza un proceso cíclico controlado por una plataforma de desarrollo Arduino, que permite la manipulación de dispositivos electrónicos. Se mantiene el enfoque CDIO (Concebir, diseñar, implementar y operar) en el que se busca acercar el quehacer de la ingeniería, al estructurar una actividad en base a un problema concreto, para los alumnos, en la que se ponga a prueba sus conocimientos teóricos y sus habilidades. La propuesta concebida logra su objetivo y se mantiene dentro de los requerimientos y restricciones propios del curso de Introducción a la Ingeniería II.

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Thesis (M.S.)--University of Wisconsin--Madison, 1974. / Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1957. / Typescript. Abstracted in Dissertation abstracts, v. 17 (1957) no. 12, p. 2868. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 345-349).