Methods and apparatuses are provided for use in monitoring product placement within a shopping facility. Some embodiments provide an apparatus configured to determine product placement conditions within a shopping facility, comprising: a transceiver configured to wirelessly receive communications; a product monitoring control circuit coupled with the transceiver; a memory coupled with the control circuit and storing computer instructions that when executed by the control circuit cause the control circuit to: obtain a composite three-dimensional (3D) scan mapping corresponding to at least a select area of the shopping facility and based on a series of 3D scan data; evaluate the 3D scan mapping to identify multiple product depth distances; and identify, from the evaluation of the 3D scan mapping, when one or more of the multiple product depth distances is greater than a predefined depth distance threshold from the reference offset distance of the product support structure.

A controller of a collaboration endpoint generates a primary audio signal for an ultrasonic source audio signal produced by a source audio speaker, a reference audio signal for the ultrasonic source audio signal, and, based on the reference audio signal, a predicted signal that is predictive of the primary audio signal. The controller produces a prediction error of the predicted signal by comparing the primary audio signal with the predicted signal and determines whether the prediction error is indicative of a motion of one or more persons near the collaboration endpoint.

A method and system for enabling the determination of a position of a receiver within a space includes transmitting a beacon signal from each of a plurality of beacon devices located at different locations within the space. The beacon signal transmitted from each beacon device has a unique information component and may have a unique frequency pattern of multiple frequencies. Each beacon signal can be distinguishable from the beacon signals transmitted from any other of the beacon devices based on the combination of its unique information component and its unique frequency pattern. The beacon signals are received at a receiver. At the receiver, for each beacon signal of a working subset, time-delay information of the received beacon signal is determined and multilateration is applied to determine the position of the receiver based on the location of each beacon device of the working subset.

Some embodiments include a motorized transport unit providing customer assistance at a shopping facility, comprises: a transceiver; a control circuit; a motorized wheel system; a lift system; and a memory coupled to the control circuit and storing computer instructions that when executed by the control circuit cause the control circuit to: activate a motorized wheel system, while continuing to monitor location information, to position the motorized transport unit under the item container and aligned, based on the location information, relative to a frame of the item container; and activate the lift system to lift on the frame of the item container lifting a first portion of the item container such one or more wheels of the item container are lifted off of a floor while two or more other wheels of the item container remain in contact with the floor.

A method includes obtaining or holding available a radio map that has been determined based on radio node observation data of radio signals emitted from radio nodes of a radio node network. The method obtains asset observation data of one or more radio signals that have been emitted from an asset and observed by radio nodes of the radio node network. The method also determines a position estimate of the asset based on the asset observation data and the radio map. A corresponding system is also disclosed.

Some embodiments include a track system comprising: an elevated track system comprising a series of elevated tracks that are positioned elevated above a sales floor and products distributed over at least a portion of the sales floor of a retail store, and configured such that multiple motorized transport units travel along the series of elevated tracks in traversing at least portions of the retail store.

Some embodiments provide apparatuses and methods useful to providing control over movement of motorized transport units. In some embodiments, an apparatus providing control over movement of motorized transport units at a shopping facility comprises: a central computer system comprising: a transceiver; a control circuit; a memory coupled to the control circuit and storing computer instructions that when executed by the control circuit cause the control circuit to perform the steps of: obtain, from one or more of the communications received from the motorized transport unit, route condition information comprising information corresponding to an intended route of travel; obtain additional route condition information detected by one or more detectors external to the motorized transport unit; detect an object affecting the intended route of travel; identify an action to be taken by the motorized transport unit with respect to the detected object; and communicate one or more instructions.

Some embodiments include apparatuses providing control over movement of motorized transport units at a retail facility, comprising: multiple self-propelled motorized transport units; a wireless communication network; and a central computer system, wherein the central computer system comprises: a transceiver; a control circuit; and a memory storing computer instructions that when executed cause the control circuit to: receive an override command, from a worker associated with the retail facility, to cause a first motorized transport unit of the multiple motorized transport units to implement one or more actions; confirm a valid authorization of the worker to override one or more operating limits of the first motorized transport unit; and override the one or more operating limits and communicate one or more instructions to the first motorized transport unit configured to cause the first motorized transport unit to implement the one or more actions in accordance with the override command.

A sending time determination method includes: determining a transmission duration and a synchronization error of signal transmission between the device to be measured and a goniometric device; determining a receiving time slot for the goniometric device to receive ultrasonic goniometric signal sent by the device to be measured, where the goniometric device is configured to receive ultrasonic goniometric signals sent by a plurality of devices to be measured, and the goniometer device receives the ultrasonic goniometric signals sent by different devices to be measured in different receiving time slots; and determining a sending time of the ultrasonic goniometric signal according to the receiving time slot, the transmission duration and the synchronization error.

Systems, apparatuses, and methods are provided herein for sorting items discarded in a shopping facility. A system for sorting discarded items comprises a motorized transport unit configured to travel around discarded items placed in a sorting area in the shopping facility, the motorized transport unit comprises a sensor device and an item mover device, an item characterization database storing characteristics corresponding to a plurality of items likely to be found in the shopping facility, and a central computer system. The central computer system is configured to receive data from the sensor device on the motorized transport unit, determine an item characteristic of an item among the discarded items in the sorting area, determine a sorting category of the item from a plurality of predefined categories, and cause the motorized transport unit to move the item, with the item mover device, from the sorting area into a category area.