摘要: |
This paper describes the functional requirements for an In-Vehicle Information System (IVIS), which will manage and display all driving-related information from many sources. There are numerous information systems currently being fielded or developed (e.g., routing and navigation, collision avoidance). However, without a logical integration of all of the possible on-board information, there is a potential for overwhelming the driver. The system described in this paper will filter and prioritize information across all sources, and present it to the driver in a timely manner, within a unified interface. To do this, IVIS will perform three general functions: 1) interact with other, on-board information subsystems and the vehicle; 2) manage the information by filtering, prioritizing, and integrating it; and 3) interact with the driver, both in terms of displaying information to the driver and allowing the driver to input requests, goals and preferences. The functional requirements described in this paper have either been derived from these three high-level functions or are directly mandated by the overriding requirements for modularity and flexibility. IVIS will have to be able to accommodate different types of information subsystems, of varying levels of sophistication. The system will also have to meet the diverse needs of different types of drivers (private, commercial, transit), who may have very different levels of expertise in using information systems. It is assumed that each on-board information subsystem will be responsible for gathering and processing data relevant to its class of information. The IVIS will be the recipient of this information and will provide an integrated gateway between the diverse subsystems and the driver. The ongoing effort to define the IVIS functional requirements, described here, is complemented by parallel efforts, within this project, which address system prototype development and testing. This work is being conducted by the Oak Ridge National Laboratory for the U.S. Federal Highway Administration as part of the Intelligent Transportation System Program. |