A system for monitoring shopping carts uses cameras to generate images of the carts moving in a store. In some implementations, cameras may additionally or alternatively be mounted to the shopping carts and configured to image cart contents. The system may use the collected image data, and/or other types of sensor data (such as the store location at which an item was added to the basket), to classify items detected in the shopping carts. For example, a trained machine learning model may classify item in a cart as “non-merchandise,” “high theft risk merchandise,” “electronics merchandise,” etc. When a shopping cart approaches a store exit without any indication of an associated payment transaction, the system may use the associated item classification data, optionally in combination with other data such as cart path data, to determine whether to execute an anti-theft action, such as locking a cart wheel or activating a store alarm. The system may also compare the classifications of cart contents to payment transaction records (or summaries thereof) to, e.g., detect underpayment events.

An Urban Intermodal Freight System is capable of transporting large volumes and tonnage of freight by containerized or other means on a mass transit rail system. It captures excess capacity in the existing mass transit rail infrastructure to move packages, parcels, and freight by using miniaturized intermodal cargo containers that are designed to integrate seamlessly with the existing transit infrastructure, while displacing delivery trucks from increasingly crowded city streets. By enabling inbound trucks to transfer their cargo to the Urban Intermodal Freight System at a city's outskirts, freight is delivered without trucks entering congested downtown areas, greatly alleviating traffic congestion, delays, greenhouse gas emissions and other negative environmental impacts. The Linear Loading Dock and Conveyor System may have other useful applications, for example to access a facility, building or vehicle, or in other circumstances where off street truck parking or loading docks are not available.

An Urban Intermodal Freight System is capable of transporting large volumes and tonnage of freight by containerized or other means on a mass transit rail system. It captures excess capacity in the existing mass transit rail infrastructure to move packages, parcels, and freight by using miniaturized intermodal cargo containers that are designed to integrate seamlessly with the existing transit infrastructure, while displacing delivery trucks from increasingly crowded city streets. By enabling inbound trucks to transfer their cargo to the Urban Intermodal Freight System at a city's outskirts, freight is delivered without trucks entering congested downtown areas, greatly alleviating traffic congestion, delays, greenhouse gas emissions and other negative environmental impacts. The Linear Loading Dock and Conveyor System may have other useful applications, for example to access a facility, building or vehicle, or in other circumstances where off street truck parking or loading docks are not available.

A walker is disclosed. The walker includes a frame, a wheel, a brake selectively positionable in an engaged state, in which the brake resists wheel rotation, or a disengaged state, in which the brake does not resist wheel rotation, a brake actuator configured to place the brake in the engaged state or the disengaged state, a handle, a hand-position sensor configured to provide a first signal responsive to the handle being grasped in a walking grasp and to provide a second signal responsive to the handle being grasped in a standing/sitting grasp, and a processor configured to cause the brake actuator to place the brake in the disengaged state based at least in part on the first signal and to cause the brake actuator to place the brake in the engaged state based at least in part on the second signal. Related devices, systems, and methods are also disclosed.

A mobile cart for a medical device is disclosed. The cart is designed to transport a medical device such as a dialysis machine (e.g., a peritoneal dialysis (PD) machine). The medical device can be connected to a power supply included in the cart, where the power supply includes one or more energy storage devices (e.g., batteries), a charging circuit, and (optionally) an inverter. The cart can also include a number of features such as automatic brakes, UV light sterilization, sensors such as object detection safety features, environmental sensors, and the like. The cart can include electronic components that enables certain functionality such as hosting a wireless local area network or communicating wirelessly with the medical device. A docking station is also disclosed that enables wireless charging of the power supply such that neither the medical device nor the cart needs to be plugged into an external power supply.

A wagon having a wagon frame, a push bar and a handle is provided. The wagon frame has a first end assembly and an opposing second end assembly. First and second rear wheels are rotatably connected to the wagon frame adjacent the second end assembly, and first and second front wheels are rotatably and pivotally connected to the wagon frame adjacent the first end assembly. The handle is pivotally connected to the first end assembly, and the push bar is pivotally connected to the second end assembly. The push bar is lockably positionable in a plurality of use positions and a storage position with a ratchet mechanism.

A system for monitoring shopping carts uses cameras to generate images of the carts moving in a store. In some implementations, cameras may additionally or alternatively be mounted to the shopping carts and configured to image cart contents. The system may use the collected image data, and/or other types of sensor data (such as the store location at which an item was added to the basket), to classify items detected in the shopping carts. For example, a trained machine learning model may classify item in a cart as “non-merchandise,” “high theft risk merchandise,” “electronics merchandise,” etc. When a shopping cart approaches a store exit without any indication of an associated payment transaction, the system may use the associated item classification data, optionally in combination with other data such as cart path data, to determine whether to execute an anti-theft action, such as locking a cart wheel or activating a store alarm. The system may also compare the classifications of cart contents to payment transaction records (or summaries thereof) to, e.g., detect underpayment events.

A movable base for a shade structure, such as an umbrella, operable between a movable position and a fixed position. The movable base including a foot pedal to transition between the movable and fixed positions. In one example, the foot pedal operates a locking assembly, such as a plate or linkage assembly that engages with the ground in the fixed position and is raised from the ground in the movable positions.

The shopping cart security system is configured for use with a hand propelled vehicle known as a shopping cart. The shopping cart security system is a wheeled structure that allows the hand propelled vehicle to roll over a supporting surface. The shopping cart security system: a) determines the GPS coordinates of the shopping cart security system; b) compares the GPS coordinates of the shopping cart security system with a previously determined set of GPS coordinates that determine an operating perimeter for the shopping cart security system; and, c) disables the rotation of the wheeled structure that forms the shopping cart security system when the shopping cart security system is determined to be outside of the region bounded by the previously determined operating perimeter.

A portable power source is moveable over a support surface. The portable power source has a power supply, a frame at least partially surrounding the power supply, at least one wheel, handle having a user engagement member a and a clamping mechanism. The clamping mechanism moves from a first position to a second position. The clamping mechanism stops the wheel in the first position and allows the rotation of the wheel in the second position.