Abstract: A method for verifying completion of a task is provided. In various embodiments, the method includes obtaining location coordinates of at least one location sensor within a work cell. The at least one sensor is affixed to a tool used to operate on a feature of a structure to be assembled, fabricated or inspected. The method additionally includes, generating a virtual object locus based on the location coordinates of the at least one location sensor. The virtual object locus corresponds to a computerized schematic of the structure to be assembled and represents of all possible locations of an object end of the tool within the work cell. The method further includes, identifying one of a plurality of candidate features as the most likely to be the feature operated on by the tool. The identification is based on a probability calculation for each of the candidate features that each respective candidate feature is the feature operated on by the tool.

Abstract: A method of monitoring an entrance to a cargo container, comprising the following steps: (a) creating a entry record for each item of cargo loaded into a cargo container; (b) creating an ID record for each RFID tag that enters the cargo container during loading of the items of cargo; and (c) correlating the video and ID records to raise an alarm if an item of cargo is loaded without an authorized RFID tag attached thereto.

Abstract: A security system for sea cargo containers wherein each container is provided with a container security device comprising a processor, a radio, a memory, a battery and one or more sensors. When the containers are within range of each other, the container security devices communicate to form an ad hoc wireless sensor network. That network communicates with a communications infrastructure, such as satellites or GSM communications means, via a gateway that aggregates data originating from the various container security devices.