a genetic algorithm was introduced into the neural network approach, and the water jet landing prediction model was further improved. the colour information was used to find the minimum rgb chromatic aberration of the current detection point in the jet direction to set the starting point for the next detection. therefore, considering gravity and the air resistance of a water flow, a force analysis was carried out. in this paper, the output was the coordinate value of the drop point, that is, the coordinate value of (x, y), so the number of output nodes was set to 2. transfer functions and training processes. according to eq (12), the range for the number of nodes in the hidden layer was calculated as 4~13. p is the landing point of water jet and p’is the deviation position.
matlab was used to simulate the experiments for the prediction model for the water jet displacement points of a sprinkler gun. in the bpnn, the weights of each neuron were arranged according to certain rules, and the individuals were generated. therefore, the number of populations was set to 80 in this paper. the water jet prediction model based on a ga-bpnn is constructed and is compared to the water jet prediction model using the traditional bpnn. as a result, it was found that the prediction error of the water jet landing point based on the bpnn was relatively large. then, a water jet prediction model based on the ga-bpnn was proposed.
water mist has a central advantage over the conventional water jet, in that the mist can penetrate everywhere and thus cool and extinguish very efficiently. abstract. the results of research into the factors governing the performance of water jets from hand-held equipment are presented with the aim of incorporating the jet streams from a water nozzle in an open field are investigated in terms of essential hydraulics characteristics such as overall shape patterns and throw., high pressure water mist fire fighting system, water mist fire fighting system specification, water mist fire extinguisher working principle, water mist system, water mist system.
‘ a constant stream of water extinguishing fires faster means giving firefighters access to a constant and sufficient stream of water released at the right pressure. to achieve this, the jet anti-fire system uses two specific components: a hydrant tap and a water jet system. the fire water jet model designed in this paper was based on the bpnn. first, according to the requirements of the bpnn, the hierarchical lieutenant david gates with miami-dade (fl) fire rescue water jet extinguishers work by spraying a jet of water at the flames and burning materials, extinguishing them and preventing it from re-igniting., wet chemical fire extinguisher, fire fighting techniques.
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