火灾模拟实验智能测控系统

Intelligent test and control system for fire simulated experiment

按国际标准ISO834升温特性,针对火灾模拟实验炉开发了一套火灾模拟实验过程智能测控系统。该系统包含带智能通信的多路温度采集、带主元分析神经网络炉温数据融合、炉温智能PID控制等多种智能信息处理技术。智能通信同时拥有RS-485串行和EPP并行接口,保证了所采集的多路温度数据的实时性;采用带主元分析和RBF神经网络的炉温数据融合模型使炉温估计精度比采用常规的最小二乘方法所得的拟合精度明显提高;采用智能PID控制则使炉膛的实际升温曲线符合ISO834国际标准升温要求。

An intelligent test and control system for fire simulated experiment process is developed based on temperature rising speciality of fire simulated experiment furnace according to international standard ISO834. This system combines multi-technique of intelligent information process such as multi-loops temperature collection with intelligent communication, furnace temperature data fusion with principle component analysis neural network and furnace temperature intelligent PID control. With RS-485 serial and EPP parallel interface simultaneously, intelligent communication can ensure the real time characteristics of collected multi-loops temperature data. Furnace temperature data fusion model with principle component analysis and RBF neural network makes the estimate precision of furnace temperature 2 times higher than that of general least square. The intelligent PID control makes the practical furnace temperature curve well meet with standard ISO834.