Fig. 9

Roadway width at 10 m comparison chart. For roadway width at 10 m under conditions, MCCB precision accuracy is still the best. It can be seen that the coverage area is much larger than the width of the roadway, and with the roadway width becoming smaller, the positioning accuracy of the positioning method has all the mentioned precision at about 10%. Comparing positioning accuracy under different conditions of the roadway width, the roadway length is fixed at 1000 m; roadway widths are set to 3 m, 5 m, and 10 m; and the anchor node spacing is fixed at 25 m