Inventory storage module having actuators that move storage totes around a conveyor loop

    公开(公告)号:US10807798B1

    公开(公告)日:2020-10-20

    申请号:US15799847

    申请日:2017-10-31

    Abstract: In one embodiment, an inventory storage module has first to fourth conveyor segments that define a conveying loop. The module translates storage totes around the conveying loop using, at least in part, first and second actuator assemblies. The first actuator assembly has a first actuator and a first crossbar connected to the first actuator. The first actuator assembly moves the first crossbar in a first direction such that the first crossbar engages and pushes totes along the first conveyor segment in the first direction. The second actuator assembly has a second actuator and a second crossbar connected to the second actuator. The second actuator assembly moves the second crossbar in a second direction, opposite the first direction, such that the second crossbar engages and pushes totes along the second segment in the second direction. The third and fourth segments transfer totes between the first and second segments.

    Wireless control of tightly spaced machines

    公开(公告)号:US10278095B1

    公开(公告)日:2019-04-30

    申请号:US15795017

    申请日:2017-10-26

    Abstract: Embodiments herein describe wireless transmission techniques for mitigating interference between wirelessly controlled machines in a shared space. To mitigate interference, the machines may be assigned different channels within the same frequency band. However, if machines using the same channel in a frequency band receive each other's wireless signals, the wireless signals can interfere. To free up additional bandwidth, in one embodiment, the command signals are transmitted using a different frequency band than a heartbeat signal used to stop the machines in case of emergencies. In another embodiment, time multiplexing or directional antennas can be used to mitigate interference. In another example, antenna diversity and multiple-input-multiple output (MIMO) can be used to further focus the radiation pattern onto the desired machine while avoiding transmitting wireless signals to neighboring machines. In one embodiment, the machines may use dual-channels to transmit and receive duplicate data.

    Multi-channel communication with tightly spaced machines

    公开(公告)号:US10735991B1

    公开(公告)日:2020-08-04

    申请号:US15795078

    申请日:2017-10-26

    Abstract: Embodiments herein describe wireless transmission techniques for mitigating interference between wirelessly controlled machines in a shared space. To mitigate interference, the machines may be assigned different channels within the same frequency band. However, if machines using the same channel in a frequency band receive each other's wireless signals, the wireless signals can interfere. To free up additional bandwidth, in one embodiment, the command signals are transmitted using a different frequency band than a heartbeat signal used to stop the machines in case of emergencies. In another embodiment, time multiplexing or directional antennas can be used to mitigate interference. In another example, antenna diversity and multiple-input-multiple output (MIMO) can be used to further focus the radiation pattern onto the desired machine while avoiding transmitting wireless signals to neighboring machines. In one embodiment, the machines may use dual-channels to transmit and receive duplicate data.

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