Mobile robots operating in unknown environments need to build maps. To do so they must have an exploration algorithm to plan a path. This algorithm should guarantee that the whole of the environment, or at least some designated area, will be mapped. The path should also be optimal in some sense and not simply a "random walk" which is clearly inefficient. When multiple robots are involved, the algorithm also needs to take advantage of the fact that the robots can share the task. In this paper we discuss a modification to the well-known distance transform that satisfies these requirements.
UAVs are a disruptive technology bringing new geographic data and information to many application domains. UASs are similar to other geographic imagery systems so existing frameworks are applicable. But the diversity of UAVs as platforms along with the diversity of available sensors are presenting challenges in the processing and creation of geospatial products. Efficient processing and dissemination of the data is achieved using software and systems that implement open standards. The challenges identified point to the need for use of existing standards and extending standards. Results from the use of the OGC Sensor Web Enablement set of standards are presented. Next steps in the progress of UAVs and UASs may follow the path of open data, open source and open standards.
Abstract-TheInternet has become all-pervasive to the extent that many businesses now need an Internet presence to be successful. With this in mind, there are certain key competencies in the development of Web Applications that should be expected of all IT graduates. The Queensland University of Technology (QUT) has recognised this by making web development one of the core (required) units in its new Bachelor of IT degree. This paper includes a literature review of web development courses; it discusses the necessary skills and knowledge required of web developers; and it explains the innovative features of web development as it is taught at QUT.
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