Method and apparatus for ensuring air quality in a building, including method and apparatus for controlling a working device using a handheld unit having scanning, networking, display and input capability

摘要

A method for wirelessly controlling a working device using a handheld unit, the method including connecting the working device to a central server by a network, wherein the working device is uniquely identified on the network by an assigned network address, wherein a device-specific identification marker is linked to the assigned network address of the working device; scanning the identification marker with the handheld unit, whereby to identify the working device and the assigned network address linked to the working device; and using the handheld unit to cause the central server to communicate with and control the working device at the assigned network address, whereby to allow the user to control operation of the working device via the handheld device and/or to receive data concerning the working device from the central server.