Patent ID: 11892836
Assignee: LIEBHERR MINING EQUIPMENT NEWPORT NEWS CO.
Field: Control (Instruments)
Classification: CPC G  B  E | IPC B  E  G

Claim 18:
19. A portable device for controlling a plurality of autonomous vehicles on a mine site, the portable device comprising:
a push button;
a local emergency stop function that, when activated, causes the portable device to send a first command inhibiting motion of all vehicles out of the plurality of autonomous vehicles present within a predetermined distance from the portable device, and wherein the local emergency stop function is activated by a first user input to the push button on the portable device, and
a global emergency stop function that, when activated, causes the portable device to send a second command for inhibiting motion of all vehicles out of the plurality of autonomous vehicles, and wherein the global emergency stop function is activated by a second user input to the push button,
wherein the push-button has a first and a second stage, and wherein the local emergency stop function is activated by pushing the push-button to the first stage and the global emergency stop function is activated by pushing the push-button through the first stage to the second stage.