[Retracted] Large-Area Saline-Alkali-Tolerant Rice Growth Environment Monitoring System Based on LoRa+UAV

Algorithm 1

Algorithm of UAV traversal.

	Input: R, r, monitoring area LL, divided into small areas ll, determine the values of NN, , m, a n
	Output: UAV traversal moves the set of nodes Larr sequentially
(1)	Create the empty set Larr
(2)	If([i/2] = 1)
(3)	For(j = 1,jk,j + 1)
(4)	(m, n)→Larr[] puts the current mobile node into the set Larr
(5)	end
(6)	If([i/2] = 0)
(7)	For(j = k,j1,j-1)
(8)	(m, n)→Larr[] puts the current mobile node into the set Larr
(9)	end
(10)	i + 1
(11)	if(i > k)
(12)	Break
(13)	Repeat (2)∼(12)
(14)	Output Larr