Abstract: A sensor network system for determining a chimney maintenance schedule comprises a sensor unit (16) arranged for placement in or proximate to a chimney (6). The sensor unit comprises at least one sensor arranged to measure a parameter of the chimney (6) and use the measured parameter to generate chimney health data associated with the chimney (6). The sensor unit includes a transmission module arranged to transmit (20) the chimney health data to a remote analysis unit (18). The remote analysis unit (18) is arranged to receive chimney profile data associated with the chimney (6) and to estimate a chimney health level associated with the chimney (6) from the respective chimney health data and chimney profile data. The remote analysis unit (18) determines the chimney maintenance schedule from the estimated chimney health level.

Abstract: An air monitoring system for analysing an air sample including: a duct arranged such that the air sample flows therethrough from an inlet to an outlet; a relative humidity sensor arranged to measure a relative humidity of the air sample; a heating module including a first heater arranged to heat the air sample; a temperature sensor arranged to measure a temperature of the air sample; a controller arranged selectively to operate the first heater if the measured relative humidity is above an upper threshold; and an analysis module including at least one chemical analysis transducer providing an output corresponding to a presence or concentration of a predetermined substance in the air sample.

Abstract: An air monitoring system for analysing an air sample including: a duct arranged such that the air sample flows therethrough from an inlet to an outlet; a relative humidity sensor arranged to measure a relative humidity of the air sample; a heating module including a first heater arranged to heat the air sample; a temperature sensor arranged to measure a temperature of the air sample; a controller arranged selectively to operate the first heater if the measured relative humidity is above an upper threshold; and an analysis module including at least one chemical analysis transducer providing an output corresponding to a presence or concentration of a predetermined substance in the air sample.

Abstract: A method and system for speech recognition defined by using a microphone array that is directed to the face of a person speaking. Reading/scanning the output from the microphone array in order to determine which part of a face sound is emitting from. Using this information as input to a speech recognition system for improving speech recognition.

Abstract: A method and system for controlling selective audio output of captured sounds from an audience by means of a system comprising at least one microphone array located above or in front of said audience, and at least one camera.

Abstract: Method and system for digitally directive focusing and steering of sampled sound within a target area for producing a selective audio output accompanying video. In a preferred embodiment, the method and system is characterized by receiving position and focus data from one or more cameras shooting an event, and use this input data for generating relevant sound output together with the picture.