RSSI-based method for positioning wireless sensor network node
A technology of wireless sensors and positioning methods, applied in the field of telecommunications, achieving good application prospects and high positioning accuracy
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[0022] The present invention will be further described in detail below in conjunction with the drawings and preferred embodiments.
[0023] The wireless sensor network node positioning method provided by the present invention is aimed at m unknown nodes to be tested in the coverage area of a certain outdoor flat empty field wireless sensor network. m Positioning. The specific positioning process of the first preferred embodiment includes the following steps.
[0024] Step 1: Calibrate the location of the test point.
[0025] First, in the coverage area of the wireless sensor network, m unknown nodes to be tested W m Randomly select an unknown node W to be tested in 1 , And underline W 1 Is the test area with the center of the circle and D′ is the radius and D′ is less than the farthest communication distance of the sensor network node. There are K beacon nodes M in the test area j (1≤j≤K) Participate in the positioning test and K≥3. In the wireless sensor network coverage area co...
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