A wireless power supply system includes a power receiving device disposed on a bottom surface of a cart, a guide rail extending along a first direction for guiding wheels of carts, and a plurality of power transmission devices configured to wirelessly transmit power to the power receiving device. The power transmission devices are arranged along the guide rail at predetermined intervals. The guide rail has a plurality of recesses arranged at the predetermined intervals such that one of the power transmission devices faces the power receiving device when a wheel of the cart fits into one of the recesses.

Techniques for predictive system remediation are disclosed. Based on attributes associated with applications of one or more system-selected remedial actions to one or more problematic system behaviors in a system (e.g., a database system), the system determines a predicted effectiveness of one or more future applications of a remedial action to a particular problematic system behavior, as of one or more future times. The system determines that the predicted effectiveness of the one or more future applications of the remedial action is positive but does not satisfy a performance criterion. Responsive to determining that the predicted effectiveness is positive but does not satisfy the performance criterion, the system generates a notification corresponding to the predicted effectiveness not satisfying the performance criterion. The system applies the remedial action to the particular problematic system behavior, despite already determining that the predicted effectiveness does not satisfy the one or more performance criteria.

The automated robotic shopping cart is a shopping cart with a controller and locomotion subsystem. The controller may provide shopping assistance to the shopper and may play audio/visual programming to entertain a child riding in the cart. The controller may wirelessly pair with a phone carried by the shopper and may use battery powered motors to propel and steer the cart such that the cart follows the shopper through a store. The battery may be recharged from a solar panel when the cart is outdoors. A GPS receiver in the controller may determine the physical location of the cart and may activate a brake if an attempt is made to remove the cart from the retail property. The invention may further comprise a reading light to illuminate products and a distress button to request assistance.

A control device for a wireless power supply system includes a battery configured to supply power to a first device, a power reception coil, a power reception circuit connected to the power reception coil and configured to adjust a voltage generated by the power reception coil to charge the battery, and a switch circuit connected between the battery and the first device and configured to detect the adjusted voltage applied to the battery. The switch circuit is further configured to, when the adjusted voltage is not detected, electrically connect the battery and the first device, and when the adjusted voltage is detected, electrically disconnect the battery and the first device.

A cart power supply device includes a power supply resonance circuit, a notification element, a current detection circuit, and a control circuit. The power supply resonance circuit includes a power supply coil that can be electromagnetically coupled to a power reception coil mounted on a shopping cart or the like. The current detection circuit detects a current flowing through the power supply resonance circuit. The control circuit supplies an alternating current to the power supply resonance circuit at a first level and operates the notification element in a first mode when the detected current is less than a first threshold. The control circuit supplies the alternating current at a second level when the detected current is greater than the first threshold and operates the notification element in a second mode.

A portable workstation for use in a front passenger seat in an interior of a vehicle includes a body member having a plurality of walls that, together, form a box-shape configuration defining a closed bottom, an open top, and an interior area. The body member includes side walls having lower edges that are angled and increasingly offset from the bottom wall so as to be complementary to a bottom of the front passenger seat. A front wall extends downwardly from the bottom wall and in front of the front passenger seat, whereby to grip the front passenger seat. Walls extend upwardly to form compartments for receiving an article. The portable workstation includes a module attachment assembly having a plurality of upstanding side walls and a top surface defining multiple receiver slots. The workstation includes multiple accessory modules each having at least one boss removably received in a receiver slot.

A personal electronic shopping cart (marCart) having a portable scanning device to eliminate the common practice involving picking up a shopping cart from the store to load and unload then reload before exiting the store then unload again into your vehicle. The cart can be owned if purchased from its manufacturers or rented from a marCart Docking Station. The marCart can be hauled from behind any vehicle or humanly operated with its battery-powered mechanism. The marCart also come with Wireless Self Checkout Register to be installed inside of the store for check out purposes. The marCart Wireless Self Checkout Register connect to the marCart. The marCart size is designed in compliances with guidelines established by proper authority. For many years, people make the trip to the store to shop for many different items; groceries, clothes, etc . . . one common practice involve picking up a shopping cart, go inside of the store, pick items then place them in the shopping cart then go to the register remove every items, pay for them then place them back in the cart, push it outside the store unload then place in the vehicle. This old process is an inconvenient and tedious way to shop. The marCart is invented to give a better option to shoppers to make shopping more convenient and easier.

A shopping cart and a shopping cart system are provided. A shopping cart includes a cart body having one or more wheels, a non-contact power receiving device, and a cleaning member. The non-contact power receiving device is mounted on a bottom portion of the cart body. The non-contact power receiving device has a power receiving surface region on a bottom surface thereof. The cleaning member is provided at the bottom portion of the cart body. The cleaning member extends downward beyond the bottom surface of the non-contact power receiving device and is provided closer to a front end of the cart body than is the power receiving surface.

A non-contact power supply unit includes connectable units. Each of the connectable units includes a cart wheel guide, a non-contact power supply device configured to perform wireless power charging of a cart, a first connector, and a second connector. The first connector is connectable to the second connector of another connectable unit and the second connector is connectable to the first connector of another connectable unit. The cart wheel guides of the connectable units are aligned with each other when connected.

A navigation system uses a dead reckoning method to estimate an object's present position relative to one or more prior positions. In some embodiments, the dead reckoning method determines a change in position from the object's heading and speed during an elapsed time interval. In embodiments suitable for use with wheeled objects, the dead reckoning method determines the change in position by measuring the heading and the amount of wheel rotation. Some or all of the components of the navigation system may be disposed within a wheel, such as a wheel of a shopping cart.