Design And Realization Of Ship Electrical Fire Extinguishing Evaluation System

Nowadays,the frequency of ship electrical fire is more and more high,so it is very important for the prevention and treatment of ship electrical fire.When there is an electrical fire on a ship,the fire-fighting ability of the crew determines the safety of the ship and personnel,so it is very necessary to strengthen the fire-fighting ability of the crew for the safety of the ship.At present,there is no training equipment and evaluation method for ship electrical fire in China,so it is of great significance to design a ship electrical fire evaluation system to evaluate the fire-fighting ability of shipmen..This article is carried out in conjunction with the "Electric Fire Simulation Control System Research" scientific research project.Through this scientific research project,we can build the basis for the Navy ’s electrical fire extinguishment evaluation system.Based on the relevant indicators of the ship ’s electrical fire extinguishment evaluation system,we can evaluate the crew ’s fire extinguishing ability,improve the crew ’s fire extinguishing skills,and ensure the crew ’s safe operation.The main work of this article is as follows:First,the overall research plan of the ship’s electrical fire extinguishing evaluation system was designed.Including electric fire simulation and flame identification system hardware and software construction.The scheme can simulate the burning phenomenon of electrical equipment by means of technology,and make the training more close to the actual combat.Secondly,the index system of the ship’s electrical fire extinguishing evaluation system was designed.Based on the analysis of the ship’s disaster process,the indicators of the electrical fire extinguishing evaluation system were formulated in conjunction with the Kirkpatrick model,and the indicators were revised through expert revisions.And completed the construction of the indicator system.Aiming at the above indicators,AHP is used to calculate the indicator weights,and then the expert scoring method is used to score each indicator,and the final fire assessment score is obtained according to its score and corresponding weight.This method has the advantages of comprehensive,scientific and stable.Through this method,the scores obtained by different experts will not deviate too much and basically meet the evaluation requirements.Then,the flame image recognition algorithm is studied.The method of combining the background difference method based on the mixed Gaussian model and the color thresholdmethod based on the YCb Cr color space is used to complete the extraction of the flame suspected area,and then the flame roundness feature,sharp corner feature and flame image change rate feature are extracted and passed through the support vector The machine(SVM)completes the optimization of the flame recognition algorithm.Through the experiment,the recognition rate of this method can reach more than 90%,and it can recognize the flame image in the process of fire-fighting training very well.Finally,the general interface of the electric fire simulation control system based on Force Control V 7.0 and the flame identification interface based on MFC are designed to realize the functions of ignition,fire extinguishing,data storage,flame identification and fire extinguishing evaluation.Subsequently,the corresponding hardware system was introduced,and the firefighting training was verified in conjunction with the above design,and the effectiveness of the firefighting evaluation system was verified.