International Business Machines Corporation

Julio Alvarez

Phuc Ky Do

Justin Monroe Pierce

Susan Elizabeth Wince

Richard John Kairis, Jr

A location-based service includes detecting the relative motion of an on-site resource, detecting the absolute position of the on-site resource, and tracking the position of the on-site resource. The position is tracked by deriving a deduced position based on the detected relative motion and adjusting the deduced position as a function of and in response to the detected absolute position. According to one embodiment, the on-site resource can be a shopping cart and the tracking includes recording a travel pattern of the shopping cart as it moves through a site floor plan such that the travel pattern is reproducible. Preferably, the recorded travel pattern includes travel patterns within an aisle in the site floor plan such that the recorded patterns include travel along the length of the aisle and travel having components which are perpendicular to the length of the aisle.

Tiered on-demand location-based tracking service and infrastructure

A location-based service includes detecting the relative motion of an on-site resource, such as a shopping cart, in addition to detecting the absolute position of the on-site resource, and displaying information on the on-site resource. The displayed information is based upon the detected relative motion and the detected absolute position. The relative motion is tracked and a position on a floor plan is deduced. This deduced position is adjusted, for example, synchronized or reset, as a function of and in response to the detected absolute position.

Tiered on-demand location-based service and infrastructure

A system receives AC power from an Uninterruptable Power Supply (UPS) on an AC power cable. The AC power cable couples a primary AC line voltage or a switched secondary AC line voltage depending on the quality of the primary AC line voltage. The UPS has a modulating circuit with a power line carrier protocol that receives a power down signal from the UPS if the primary AC line voltage indicates that the system should power down in a controlled manner or take other power down actions. The modulating circuit generates a modulated power down signal that is coupled to the AC power cable. The system has a corresponding demodulating receiving circuit with the power line carrier protocol that receives the modulated power down signal and regenerates the power down signal. The power down signal is coupled to circuitry in the system that initiates power down sequencing options.

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Cary, NC, United States of America

Julio Alvarez