MTK默认wifi信号格

发布于 by

信号格数：5

MIN: -100

MAX: -55

格数 WIFI信号值RSSI

0   < -88.75
1   >= -88.75 and < -77.5
2   >= -77.5 and < -66.25
3   >= -66.25 and < -55
4   >= -55

计算公式：

N = (RSSI-MIN) * (信号格数-1) / (MAX-MIN)

即：

N = (RSSI+100)*4/45

结果取整

通过公式反算边界值

RSSI=N*45/4-100

>>> 0.0*45.0/4.0-100.0
-100.0
>>> 1.0*45.0/4.0-100.0
-88.75
>>> 2.0*45.0/4.0-100.0
-77.5
>>> 3.0*45.0/4.0-100.0
-66.25
>>> 4.0*45.0/4.0-100.0
-55.0

< -100 按0计

如果改成6格

通过公式反算边界值

RSSI=N*45/5-100

>>> 0.0*45.0/5.0-100.0
-100.0
>>> 1.0*45.0/5.0-100.0
-91.0
>>> 2.0*45.0/5.0-100.0
-82.0
>>> 3.0*45.0/5.0-100.0
-73.0
>>> 4.0*45.0/5.0-100.0
-64.0
>>> 5.0*45.0/5.0-100.0
-55.0

格数 WIFI信号值RSSI

0    < -91.0
1    >= -91.0 and < -82.0
2   >= -82.0 and < -73.0
3    >= -73.0 and < -64.0
4    >= -64.0 and < -55
5   >= -55