-- 所有的group
groups = {
	{ id = 201009001, refresh_time = 0, pos = { x = 1.0, y = 0.0, z = 2.6 } },
	{ id = 201009003, refresh_time = 0, pos = { x = -0.2, y = 0.9, z = -1.8 } },
	{ id = 201009901, refresh_time = 0, pos = { x = 3.3, y = 0.0, z = 4.0 } }
}