Indoor floor location method based on air pressure fingerprint
A positioning method and air pressure technology, applied in electrical components, wireless communication, etc., can solve problems such as insufficient two-dimensional positioning, and achieve the effect of promoting better development
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[0043] 1. Offline collection stage
[0044] 1.1 The floor positioning server starts the air pressure acquisition device in each floor through the communication network every t minutes to collect indoor air pressure data. Here, t=60 can be taken.
[0045] 1.2 After the floor air pressure device receives the air pressure collection command, it collects n pieces of air pressure data, and sends these data and their floors to the floor positioning server through the communication network. Here, n=30 can be taken
[0046] 1.3 After the floor positioning server receives the air pressure data returned by each floor, it preprocesses the n air pressure data according to the 3S criterion (Leite criterion). The specific method is as follows:
[0047] Suppose the air pressure data collected is p 1 ,p 2 ,...,pn , n=30.
[0048] (1) Calculate the sample mean of the n data
[0049] (2) Calculate the sample variance of the n data
[0050] (3) If a certain data is not in the interva...
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