Fault Detection Modelling and Analysis in a Wireless Sensor Network

Algorithm 1

: The pseudocode of low-energy-consumption distributed fault detection algorithm.

(1) Begin

(2) for each node in WSN

/* The following method is adopted to establish Q*/

(3)   for each k times before time t (including time t)

(4)    if

(5)     

(6)    else

(7)     

(8)   end if

(9)   end for

/* Generate test */

(10)   if

(11)    

(12)   else

(13)    

(14)   end if

/*Correct */

(15)   if and

(16)    , //

(17)   else if and

(18)    , //

(19)   end if

/* Generate a state value based on the value of */

(20)   if

(21)    

(22)   else

(23)     

(24)   end if

/* For the nodes with status value , test each member of their neighbors to generate test by adopting the following way*/

(25)   if

(26)    

(27)   else

(28)    

(29)   end if

/* Make the final decision of the nodes’ state */

(29)   if

(30)    

(31)   else

(32)   

(33)   end if

(34) end for

Process end