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ISSN: 2088-8708

Int J Elec & Comp Eng, Vol. 9, No. 6, December 2019 : 5143 - 5149

5146

However, the 433 MHz bit rate is only 9.6 kbps, making it ideal for applications in which only

a small amount of data needs to be transmitted. Therefore, it is generally used for modern control systems.

Our WSAN used RF433 MHz wireless communication. It adopts a star topology in which the microcontroller

forms the main part and is responsible for building the entire 433 MHz wireless network. Flowcharts Figure2,

Figure3 bellow describes operation steps of the proposed system:

Figure 2. Operation steps of the proposed system

Figure 3. Operation steps of the proposed system

5.

EXPERIMENTAL RESULTS OF THE FUNCTION

Linear model Poly9:

����(����) = ∑

10

����=1

(1)

where x is normalized by mean 1.36 and std 0.8332

Coefficients (with 95% confidence bounds):

p1 = 0.1216 (-0.004683, 0.2478)

p2 = -0.2144 (-0.4598, 0.03102)

p3 = -0.3513 (-1.035, 0.3319)

p4 = 0.9463 (-0.2019, 2.095)

p5 = -0.2711 (-1.68, 1.138)

p6 = -1.502 (-3.206, 0.2034)

p7 = 1.415 (0.177, 2.652)

p8 = 1.635 (0.7719, 2.499)

p9 = 2.029 (1.679, 2.38)

p10 = 3.775 (3.668, 3.883)