US 11,989,023 B2
Method for navigating an industrial truck
Marco Bellof, Aachen (DE); Bugra Turan, Aachen (DE); and Sebastian Müller, Bad Salzdetfurth (DE)
Assigned to StreetScooter GmbH, Aachen (DE)
Filed by StreetScooter GmbH, Aachen (DE)
Filed on Oct. 16, 2020, as Appl. No. 17/072,117.
Claims priority of application No. 10 2019 128 253.5 (DE), filed on Oct. 18, 2019.
Prior Publication US 2021/0116925 A1, Apr. 22, 2021
Int. Cl. G05D 1/00 (2006.01); G01C 21/00 (2006.01); G01C 21/20 (2006.01)
CPC G05D 1/0212 (2013.01) [G01C 21/206 (2013.01); G01C 21/3811 (2020.08); G05D 1/0088 (2013.01); G05D 1/0231 (2013.01); G05D 1/0255 (2013.01)] 7 Claims
OG exemplary drawing
 
1. Method for navigating an industrial truck in a predetermined area with the following method steps:
providing a map of the predetermined area with at least one permanent landmark, wherein the map is maintained in a central unit located outside of the industrial truck,
entering a temporary landmark in the map, when the temporary landmark is created, wherein the temporary landmark is a parked industrial truck, a parked swap body, a parked trailer or a parked container,
deleting the temporary landmark from the map when the temporary landmark is removed, and
navigating the industrial truck in the predetermined area on the basis of the map having the permanent landmark and the temporary landmark,
wherein the step of entering the temporary landmark in the map when the temporary landmark is created comprises: transferring to the map at least one geographical coordinate of the temporary landmark created, wherein the temporary landmark also determines its geographical coordinates, and wherein the step of transferring to the map the geographical coordinate of the temporary landmark created is performed from the created temporary landmark itself,
wherein the steps of entering the temporary landmark in the map when the temporary landmark is created and/or of deleting the temporary landmark from the map when the temporary landmark is removed is performed in real time,
wherein the step of entering the temporary landmark in the map comprises the industrial truck communicating with the central unit via a radio unit and a GPS receiver, and
wherein the radio unit comprises a radio transmitter configured to transmit a radio signal and the central unit comprises a central unit transmitter and a central unit receiver configured to receive the radio signal.