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1 results about "Spatial network" patented technology
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A spatial network (sometimes also geometric graph) is a graph in which the vertices or edges are spatial elements associated with geometric objects, i.e. the nodes are located in a space equipped with a certain metric. The simplest mathematical realization is a lattice or a random geometric graph, where nodes are distributed uniformly at random over a two-dimensional plane; a pair of nodes are connected if the Euclidean distance is smaller than a given neighborhood radius. Transportation and mobility networks, Internet, mobile phone networks, power grids, social and contact networks and neural networks are all examples where the underlying space is relevant and where the graph's topology alone does not contain all the information. Characterizing and understanding the structure, resilience and the evolution of spatial networks is crucial for many different fields ranging from urbanism to epidemiology.
An underground garage positioning method and system based on a lamp composite controller
This invention discloses a method and system for locating users in underground parking garages based on a lighting fixture composite controller. The method includes: a mobile terminal device sending a location request to the composite controller of the smart lighting fixtures; the composite controller receiving the request and obtaining the mobile terminal device ID and wireless signal strength value, and uploading the relevant information to a server via a wireless router gateway; the server constructing a parking garage spatial network topology using the composite controller as a graph node, the spacing between lighting fixtures as edges, and the wireless signal strength value as node features, and aggregating the signal features through a graph neural network to obtain the mobile terminal's location information; after the mobile terminal sends a search request, the server combining current and historical location information to formulate a guidance route and sending brightness control signals to designated smart lighting fixtures to provide lighting guidance. This invention integrates lighting fixtures with positioning functions, eliminating the need for dedicated positioning equipment, providing intuitive search instructions, and effectively improving the user experience of locating users in underground parking garages.
