中文说明：三角定位方法用来定位标签的位置，通过三个天线来接受辐射从而将时间量转化为距离量，从而确定标签位置，三角定位时天线的放置按照等腰三角形来防止，通过做圆的方法使三个圆交于一点，这点就是标签位置
English Description：
Triangulation method used to position the label position, through the three antenna to receive radiation to convert the amount of time for the distance, to determine the location of tags, triangle positioning antenna placed in accordance with the isosceles triangle to prevent, the circle the three round cross at one point, this is the position of the label