Um framework para coprojeto de hardware e software de sistemas avançados de assistência ao motorista baseados em câmeras

Abstract

Dedico este trabalho aos meus pais Antonio Sérgio (in memorian) e Maria Célia, com todo meu amor e gratidão por tudo que me proporcionaram ao longo da vida. Desejo ser merecedor dessa dedicação incansável, especialmente quanto à minha formação. Palavras-chave: CoProjeto, ADAS, Sistemas Embarcados, Hardware. ABSTRACT MARTINEZ, L. A. Hardware and software codesign framework for camera-based advanced driver assistance systems. 2017. 130 p. Tese (Doutorado em Ciências -CiênciasThe demand for new technologies, enhanced security and comfort for urban cars has grown considerably in recent years prompting the industry to create systems designed to support drivers (ADAS -Advanced Driver Assistance Systems). This fact contributed to the development of many embedded systems in the automotive area among them, the pedestrians collision avoidance. Through the advancement in various research, began circulating through the streets vehicles with anti-collision systems and autonomous navigation. However, to achieve ever more challenging goals, designers need tools to unite technology and expertise from different areas efficiently. In this context, there is a demand for building systems that increase the level of abstraction of models of image processing for use in embedded systems enabling better design space exploration. To help minimize this problem, this research demonstrates a develop a specific framework for hardware/software codesign to build ADAS systems using computer vision. The framework aims to facilitate the development of applications, allowing better explore the design space, and thus contribute to a performance gain in the development of embedded systems in relation to building entirely in hardware. One of the requirements of the project is the possibility of the simulation of an application before synthesis on a reconfigurable system. The main challenges of this system were related to the construction of the intercommunication system between the various Intellectual Property (IP) blocks and the software components, abstracting from the end user numerous hardware details, such as memory management, interruptions, cache, types (Floating point, fixed point, integers) and so on, enabling a more user-friendly system for the designer.

Arquitetura multi-core reconfigurável para detecção de pedestres baseada em visão

“…Uma segunda vantagem da arquitetura desenvolvida reside em sua escalabilidade, uma vez que é possível replicar estágios ou até mesmo toda a cadeia de processamento a fim de obter maior desempenho ou processar uma maior quantidade de dados. Os módulos desenvolvidos, tanto em hardware quanto em software, podem ainda servir como blocos funcionais em um framework para coprojeto de HW/SW, como o de Martinez (2017).…”