基于BIM模型的火灾探测器自动布置方法研究

当前，建筑设计单位普遍使用AutoCAD绘图软件进行房间内火灾探测器的布置工作。绘图软件的硬性束缚导致建筑设计可视化程度较低，且建筑设计涉及设备种类多、布置数量大，易导致绘图出错、效率较低等问题。本研究提出一种基于BIM模型的火灾探测器自动布置方法，依托JavaScript创建火灾探测器自动布置插件。主要方法是通过三维凸壳增量算法求得模型凸包，结合三维模型布尔运算得到模型内部空间，再根据规范明确房间内探测器布置数量和布置方式，完成对建筑房间内火灾探测器的自动布置。

Research on Automatic Arrangement Method of Fire Detectors Based on BIM Model

At present, AutoCAD is used by variety major design units to arrange the fire detectors in the room. The drawing visualization is low due to the compulsory restraint of the software, manual design involves many disciplines and a large number of equipment layout, which leads to drawing error prone and low efficiency. Therefore, a method of automatic fire detector layout is proposed which is based on BIM model, and an automatic fire detector layout plug-in based on JavaScript is created. The main method is that fire detectors are arranged automatically in building rooms by combining that the convex hull of the model is obtained by three-dimensional convex shell incremental algorithm, and that the internal space of the model is obtained with the Boolean operation of the three-dimensional model, and the number and arrangement of detectors in the room shall be determined according to the specifications.