Radio frequency tomography positioning method capable of relieving influence of background electromagnetic waves
A technology of radio frequency tomography and positioning method, which is applied in positioning, radio wave measurement system, electrical components, etc., and can solve the problems of low imaging quality, influence of background electromagnetic wave positioning performance, and electromagnetic wave signal being easily affected by the environment.
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[0091] Based on the CC2530 wireless transceiver chip, the positioning node is independently developed. The positioning area is a square area of 21 feet by 21 feet, such as figure 2 As shown, one wireless communication node is placed at 3 feet, and there are a total of 29 wireless communication nodes. Each positioning module is supported by a bracket with a height of 3 feet, which ensures that the height of the sending space area of positioning data is similar to the height of the human body. Among them, 28 wireless communication nodes form a measurement network, and another wireless communication node is used as a data acquisition node. In terms of software protocol, this embodiment is based on the wireless communication protocol of IEEE802.15.4, and in the application layer of the Z-stack protocol stack, codes for sending messages and extracting strength values after receiving messages are added. The 28 measurement modules are numbered with ID numbers from 1 to 28 in ...
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