Inventory management system using event filters for wireless sensor network data
AssigneeTyco Fire & Security GmbH
InventorPaul Brent RASBAND
Life of this patent
Estimating the term…
Abstract
A wireless sensor node, WSN, tag and method for filtering sensor data obtained by the WSN. At least one event filter is applied to sensor data. The sensor data is based at least in part on motion of the WSN tag. The at least one event filter includes at least one filter parameter, and the at least one filter parameter includes a minimum amount of movement of the WSN tag within a predetermined time threshold.
Claims20
A method for filtering sensor data obtained by a wireless sensor node, WSN, the method comprising:
- applying at least one event filter to sensor data, the sensor data being based at least in part on motion of the WSN tag;
- and
- the at least one event filter including at least one filter parameter, the at least one filter parameter including a minimum amount of movement of the WSN tag within a predetermined time threshold.
A wireless sensor node, WSN, tag for identifying handling events, the WSN tag being associable with an item, the WSN tag comprising:
- at least one sensor, the at least one sensor configured to generate sensor data based at least in part on motion of the WSN tag;
- a memory, the memory configured to store at least one event filter and the sensor data;
- a processor, the processor configured to:
- apply at least one event filter to the sensor data, the at least one event filter including at least one filter parameter, the at least one filter parameter including a minimum amount of movement of the WSN tag within a predetermined time threshold.
A method for identifying handling events of a wireless sensor node, WSN, tag associable with an item, the method comprising:
- receiving sensor data, the sensor data being based at least in part on motion of the WSN tag;
- applying at least one event filter to the sensor data;
- triggering a filter firing of the at least one event filter based at least in part on the applying of the at least one event filter to the received sensor data;
- determining whether a handling event occurred based at least in part on the filter firing of the at least one event filter;
- and
- the at least one event filter including at least one filter parameter, the at least one filter parameter including a minimum amount of movement of the WSN tag within a predetermined time threshold.
Dependencies are inferred from the claim text.