高炉炉喉煤气流形态三维模型重建-控制理论与应用.pdf

31 5 Vol. 31 No. 5 2014 5 Control Theory Applications May 2014 DOI: 10.7641/CTA.2014.30756 , , , (1. , 410083; 2. , 410075; 3. , 410083) : ; . , , , , ; , , . 4, , , . : ; ; ; : TP273 : A Reconstruction of 3D model of gas flow distribution in blast furnace throat AN Jian-qi , LIU Yang , WU Min , CAO Wei-hua (1. School of Information Science and Engineering, Central South University, Changsha Hunan 410083, China; 2. School of Software, Central South University, Changsha Hunan 410075, China; 3. Hunan Engineering Laboratory for Advanced Control and Intelligent Automation, Changsha Hunan 410083, China) Abstract: Because of the importance of the gas flow distribution in testing the production status and the undetectable nature of it, we propose a 3D model reconstruction method based on the top camera for simulating the gas flow distribution in the blast furnace throat. First, we build the hardware architecture of the detection system. Next, the edge detection algorithm is applied to extract the feature points after preprocessing the generated image. The shape of gas flow is drawn by the edge detection algorithm based on the director chain code. Then, combining the camera internal parameters, we obtained the coordinates for the gas flow in 3D model by using the relations of coordinate 3D transform and coordinate mapping. The 3D model for the gas flow distribution is built eventually. The change of the gas flow distribution after the blast furnace burdening can be inferred in simulation by comparing the variations of 3D