92
3 Physical Theory of RFID System Physical Anti-Collision
Fig. 3.21 Experimental data fitting function
Q=
S
y 1
× 100%
(3.52)
y 1 is the experimental data.y 2 is the fitted function value. S is the absolute error.
Q is the relative error. The relative error is shown in Fig. 3.22.
According to the contents of Fig. 3.22, the absolute error is very small, the relative
error is less than 5%, and the maximum relative error is only 3.7%. The fitted function
has two advantages. One is that the prediction value of the fitted function is closing
to the experimental value, and the absolute error and relative error are very small,
which has good practicality. Another is that the fitting function curve is roughly in
line with the simulation result curve, which has a good theoretical basis.
Fig. 3.22 Relative error of different concentrations
3 Physical Theory of RFID System Physical Anti-Collision
Fig. 3.21 Experimental data fitting function
Q=
S
y 1
× 100%
(3.52)
y 1 is the experimental data.y 2 is the fitted function value. S is the absolute error.
Q is the relative error. The relative error is shown in Fig. 3.22.
According to the contents of Fig. 3.22, the absolute error is very small, the relative
error is less than 5%, and the maximum relative error is only 3.7%. The fitted function
has two advantages. One is that the prediction value of the fitted function is closing
to the experimental value, and the absolute error and relative error are very small,
which has good practicality. Another is that the fitting function curve is roughly in
line with the simulation result curve, which has a good theoretical basis.
Fig. 3.22 Relative error of different concentrations