Research on Intelligent Anti-collision Monitoring for Construction Tower Crane Group Based on GNSS Sensors

A novel anti-collision monitoring method is proposed based on GNSS single-epoch positioning technology via high-precision carrier phase observations, which is applied to intelligent anti-collision monitoring for construction tower crane group. GNSS-based anti-collision monitoring principles are given in detail. A set of GNSS-based anti-collision monitoring auxiliary system named as GNSS_ACS for construction tower crane group is designed and developed. It can realize three kinds of alarm monitoring function consist of C-level, B-level and A-level respectively. The monitoring accuracy in the GNSS_ACS system ,for 600 consecutive epochs of the rover station such as rover_1727, the min-error of N-RMS is 0.007m, the max-error of N-RMS is 0.012m and the avg-error of N-RMS is 0.010m; the minerror of E-RMS is 0.005m, the max-error of E-RMS is 0.008m and the avg-error of E-RMS is 0.011m; the min-error of U-RMS is 0.015m, the max-error of U-RMS is 0.029m and the avg-error of U-RMS is 0.022m, is obtained in cm-level which verifies the effectiveness and feasibility of the proposed solutions in the experimental results. It can provide a new solution for intelligent anti-collision monitoring of construction tower crane group.