Honeywell International Inc.

Smart Technologies Inc.

Steve Worthington

Gerald D Morrison

Trevor Akitt

Dale Broemer

Randy McCharles

Emily Fabes

A gas detection unit capable of automatically communicating event data is provided. The unit includes a housing, a gas detector module mounted in the housing, and a programmable processor configured to retain preselected event data of the gas detector module and to automatically initiate a wireless signal communicating the preselected event data for further transmission to a remote database in response to the detection of an available communication connection. The unit can include a low power radio module configured to transmit a low power radio signal communicating the preselected event data in response to initiation of the wireless signal by the programmable processor.

Automatic collection and updating of compliance data for gas detection equipment

A camera-based touch system includes at least one pair of cameras having overlapping fields of view and a touch surface encompassed within the overlapping fields of view across which a pointer is moved. The cameras of the at least one pair acquire images at intervals asynchronously. In order to estimate the position of the pointer relative to the touch surface from image data acquired by the at least one pair of cameras, the images are synthetically synchronized. During this process, for each camera in the pair, each acquired image is processed to determine the position of the pointer therein and the position of the pointer is recorded together with a timestamp representing the time elapsed between a reference point common to the cameras and the time the image was acquired. Successive pairs of recorded positions are interpolated to generate interpolated positions and the interpolated positions are recorded together with synchronization times representing times the images would have been acquired had the cameras been synchronized. Interpolated positions generated by the cameras having equivalent associated synchronization times are determined and these interpolated positions are triangulated to estimate the position of the pointer relative to the touch surface.

Synchronization of cameras in camera-based touch system to enhance position determination of fast moving objects

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Calgary, Canada

Steve Worthington