Portable Computer-Based System For Creation of As-Built Drawings

将（在第1阶段）建立概念证明，并（在第2阶段）将开发一种具有成本效益的便携式计算机系统，以获取和处理必要的数据，以便在需要时就地绘制建筑物和空间布局等设施的建成图纸。用于检查给定测量和用户界面图形的稳健算法将为最终的商业应用提供所需的可靠性。该系统的核心将基于高性能的32位单板计算机。计算机将配有方便的市售传感器，用于测量距离、方向和特定参考位置。这些传感器有多种选择；讨论了一些特殊的方法，如超声波收发器、具有直接电子读取角度和距离的经纬仪型系统和基于激光的系统。在第一阶段，将设计一个具有可靠的传感器数据采集、实时处理、分析和物理位置图形显示的整体系统，达到原型水平。

A proof of concept will be established (in Phase 1), and (in Phase II) a cost-effective portable computer-based system will be developed for acquisition and processing of data needed to create, on-site if desired, as-built drawings of facilities such as buildings and space layouts. Robust algorithms for checking the measurements given and user interface graphics will give the needed reliability for eventual commercial application. The core of the system will be based on a high-performance 32-bit single-board computer readily available. The computer will be supplemented with convenient commercially available transducers for measurement of distances, orientations and specific reference locations. Various options exist for these sensors; a number of particular approaches are discussed, such as an ultrasonic transmitter-receiver, theodolite-type systems with direct electronic readout of angles and distance, and laser-based systems. An overall system with reliable data-acquisition from sensors, real- time processing, analysis and graphical display of the physical location, will be designed to the prototype level in Phase I.