A method for determining the position of one or more automated guided vehicles in an environment, the method comprising: receiving from a first automated guided vehicle information comprising an initial estimate of the position of the automated guided vehicle, said initial estimate based on a vehicle position measurement system associated with the vehicle; receiving from the first automated guided vehicle safety scanner information form a contactless safety scanner associated with the vehicle, said safety scanner information comprising information regarding the presence of one or more objects within a zone outside of the vehicle monitored by the scanner; identifying, from the safety scanner information, the presence of one or more navigational markers having a predetermined size, shape, and location; and determining an updated location of the automated guided vehicle based on the received initially determined location information and the location of the one or more detected navigational markers.
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