Skip to main content

Table 2 Comparison of alarm method with the five types of presetting signals

From: Alarm method of communication intelligent manhole cover based on multiple event fusion

Input signal Number of alarm
The existing method The proposed method
Signal 1, Sa = 0, So = 0 0 0
Signal 2, Sa = 0, the duration lasts 1 s with So = 1 1 0
Signal 3, Sa = 0, the duration lasts 2 s with So = 1 1 0
Signal 4, Sa = 0, the duration lasts 3 s with So = 1 1 1
Signal 5, Sa = 0, So = 1 1 1