Gas leakage source positioning method based on improved artificial fish swarm algorithm
An artificial fish swarm algorithm and gas leakage technology, applied in the direction of calculation, calculation model, artificial life, etc., can solve problems such as prone to oscillation, insufficient precision, and reduced search efficiency, so as to increase the possibility of jumping out of local optimum, Efficient positioning, reducing the effect of the search area
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specific Embodiment 1
[0047] In the first embodiment, five unmanned aerial vehicles are used to search for the source of gas leakage. combine figure 1 , the specific implementation steps are as follows:
[0048] Step 1: Set up 5 drones in the area to be monitored;
[0049] Step 2: Use the divergence strategy to quickly find the plume;
[0050] Step 3: Determine whether the drone has found a plume, if found, go to step 4, otherwise go back to step 2;
[0051] Step 4: Use the improved artificial fish swarm algorithm to search for the source of gas leakage;
[0052] Step 5: update the position of each drone;
[0053] Step 6: Determine whether the location of the gas leakage source is successful, if successful, perform step 7, otherwise go back to step 4;
[0054] Step 7: Output the location of the gas leakage source.
[0055] The improved artificial fish swarm algorithm based on the curiosity model proposed in step 4, such as figure 2 shown, including the following steps:
[0056] Step 1: Ini...
specific Embodiment 2
[0068] In the second embodiment, the gas leakage concentration field is constructed by MATLAB software, and the standard artificial fish swarm algorithm and the improved artificial fish swarm algorithm are used to search for leakage sources.
[0069] like image 3 As shown, since the field of view and step size of the standard artificial fish swarm algorithm are fixed values, the oscillation phenomenon occurs in the later stage of the search, which cannot meet the problem of solution accuracy. like Figure 4 As shown, using the improved artificial fish swarm algorithm to search for leakage sources, the curiosity factor α 1 Under the effect of , as the search time increases, the field of view and step size gradually decrease, and the optimization is carried out with a smaller field of view and step size in the later stage of the search to avoid the phenomenon of oscillation.
[0070] like Figure 5 As shown, the fixed field of view and step size of the standard artificial fi...
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