TABLE 1.

Generalized position and orientation state classification rules for unknown number of photoelectric switches.

Orientation	Position
	1 ≤ Nd<3	Nd = 3	3<Nd ≤ 2N-1
N<Nf<N+1	A: Far away roadside to the outside yaw	B: Outside yaw	C: Near roadside to the outside
Nf = N+1	D: Far away roadside	E: Normal	F: Near roadside
N+1<Nf<(4N+3)/2	G: Far away roadside to the inside yaw	H: Inside yaw	I: Near roadside to the inside yaw