Dangerous chemical stacking type storage cargo positioning optimization method

Abstract

The invention discloses a dangerous chemical stacking type storage cargo positioning optimization method, which comprises the following steps: establishing a dangerous chemical stacking type storage cargo positioning monitoring scene, and obtaining the time difference of arrival between a to-be-positioned label and each base station; establishing a TDOA-based positioning model in combination withthe obtained time difference of arrival, thereby determining an objective function of the position of the to-be-positioned tag; and searching an optimal solution of the objective function by utilizinga PSO algorithm for dynamically adjusting the inertia weight and the acceleration weight so as to obtain the position of the to-be-positioned tag. The method aims at the defects that an existing PSOalgorithm is prone to falling into local optimization and search stagnation occurs, the algorithm is improved, and inertia weight and acceleration weight are dynamically adjusted; The problem that theparticle swarm optimization algorithm is liable to fall into local optimum is effectively solved, so that the algorithm can be quickly converged to a globally optimal solution, and the algorithm is stable in performance and high in positioning precision; And a good technical means is provided for government departments to carry out dangerous chemical storage and mixed storage monitoring.

Description

technical field [0001] The invention relates to the technical field of hazardous chemicals safety, in particular to a method for optimizing the positioning of hazardous chemicals palletized storage goods. Background technique [0002] At present, there are seven basic types of hazardous chemical storage in my country, namely, flat warehouse, building warehouse, three-dimensional warehouse, storage tank, shed, freight yard and underground semi-underground warehouse. Beijing is a mega city that uses hazardous chemicals, and palletized storage is its main storage type. At present, most of the monitoring research on the storage safety status of hazardous chemicals is focused on the transportation process or the monitoring of the safety parameters of the boxes and tanks and the identification methods of risks and accidents. There are no effective regulatory tools. In order to realize the safe storage of hazardous chemicals, the National Standard 15603-1995 "General Rules for th...

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Problems solved by technology

It can be seen that researchers mainly carry out research on the inertia weight in PSO, and not many consider the inertia weight and acceleration weight at the same time. Therefore, the accuracy of the positioning results needs to be improved.

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