MDSP:a Modular DSP Architecture for a Real-Time 3D Laser Range Sensor

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ConferenceProceedings of the Electronic Imaging 2002 Conference, January 20-25, 2002., San Jose, California, USA
Subject3D laser scanners; Real-time operating systems; Multiprocessors; Digital signal processors; systèmes d'exploitation temps réel; multiprocesseur; processeur de signal numérique
AbstractBy combining a number of embedded digital signal processors (DSPs) within a desktop PC, we have developed a system that offers not only the mass storage, network utilities, user interface and presentation graphics of a regular PC, but also the real-time response rates normally associated only with embedded systems. In this paper we outline the design of such a system that has been built to demonstrate a real-time 3D laser range sensor. The prototype range sensor consists of a custom-built auto-synchronized 3D laser scanner head that is directly interfaced to off-the-shelf computing hardware. The hardware includes a number of PCI bus DSP cards that communicate using dedicated high-speed interprocessor links. Communication between the desktop PC and the embedded DSPs uses the PCI bus. This processing power will be required to achieve real-time data acquisition and 3D geometrical tracking capabilities. This paper outlines the prototype 3D laser range sensor and describes its computing architecture. The embedded DSPs run under a commercial multiprocessor real-time operating system. This combination leads to a highly modular system in which processors may be added or removed with minimal side effects.
Publication date
AffiliationNRC Institute for Information Technology; National Research Council Canada
Peer reviewedNo
NRC number44896
NPARC number5765299
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Record identifier27b4e566-49ea-4e07-a71d-2696d7f324bc
Record created2009-03-29
Record modified2016-05-09
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