| 摘要 |
FIELD: transport.SUBSTANCE: claimed system 2010 comprises a drive assembly 2014, a front-end tool 2012, the first obstacle detector 2050 and the second obstacle detectors 2052A, 2052B. The first obstacle detector 2050 makes the pickup of the coordinate laser. The first obstacle detector detects the obstacles located outside the undetected zone DZ of the first detector 2050. The first obstacle detector scanning zones Z1, Z2, Z3 extend at the downward angle to the floor surface ahead of the drive assembly 2014. The second detectors 2052A, 2052B are located below, that is, nearby the ground surface, the first detector 2050. The second detectors detect the objects located in the aforesaid undetected zone DZ.EFFECT: higher safety.4 cl, 30 dwg |
