127 results about "Arrangement number" patented technology

The invention relates to an energy source minimization arrangement method of a radio-frequency energy capturing wireless sensor network based on particle swarm optimization. From the beginning of an initial state that the wireless sensor network does not have a radio-frequency energy source, the following two steps are executed repetitively: a new radio-frequency energy sending source is additionally deployed; and improvement of K energy source positions based on particle swarm optimization is carried out; when a new energy source is additionally deployed every time, the initial position, the initial speed and the optimal position of each particle are necessary to initialize; then, the energy source position optimal operation based on particle swarm optimization is executed; and, for each K value, if the optimal deployment of K energy positions satisfies capturing power requirements of all sensor nodes after improvement of the energy source positions based on particle swarm optimization is executed, the energy source minimization arrangement method is ended. The energy source minimization arrangement method of the radio-frequency energy capturing wireless sensor network based on particle swarm optimization provided by the invention is capable of effectively reducing the arrangement number of energy sources and saving the economical cost.

The invention provides an electromagnetic handwriting device and a method for arranging antennae of the electromagnetic handwriting device. The electromagnetic handwriting device comprises an electromagnetic handwriting plate and an electromagnetic input pen which is used for performing handwriting input on the electromagnetic handwriting plate, wherein the electromagnetic handwriting plate comprises an antenna plate and a control plate which controls the antenna plate; the antenna plate comprises transmitting coils and receiving coils; the transmitting coils transmit electromagnetic waves tothe electromagnetic input pen; the receiving coils are staggered with the transmitting coils and used for receiving the electromagnetic waves which are reflected after the electromagnetic input pen receives the electromagnetic waves transmitted by the transmitting coils; and at least the transmitting coils or the receiving coils are in a reuse structure. The method for arranging the antennae of the electromagnetic handwriting device comprises the step of: setting at least the transmitting coils or the receiving coils in the reuse structure. By the electromagnetic handwriting device and the method, the arrangement number of the antennae is small and the antennae are easy to arrange; in addition, the method can be widely applied in the electromagnetic handwriting device.