A large Central European logistics centre that provides warehousing, picking, distribution and forwarding services to other multinational companies is looking for new innovative solutions. The company also has several large warehouses in an industrial park in Slovakia. The inventory control system currently requires substantial human resources and takes much time, rarely having real-time information about inventory and storage solutions. For this reason, drone application has been introduced for automatic scanning of stocks, and the pilot version is already being tested. However, two grave problems were encountered during the tests: the first problem was that the warehouse functions as a Faraday cage, so no GPS signals can be received. The other problem is how to maximize the power of the drone available for moving, which also requires optimum route planning. We are looking for solutions to these problems in the present article.