Patent ID: 6125710
Filing Date: 2000-10-03
Classification: G01N

Abstract:
A networked building air measurement system comprising:a sensor capable of measuring a characteristic of an air sample, the sensor having an air inlet port;a backbone tube in communication with the air inlet port of the sensor;a plurality of air intake valves remotely disposed from each other relative to distances within the building and in communication with the backbone tube such that air admitted through one of the plurality of air intake valves is communicated into the backbone tube;a controller connected to the sensor and to each air intake valve, the controller executing a control sequence which opens and closes each one of the plurality of air intake valves at individually defined times forming a separate air sample from each one of the plurality of air intake valves communicated through the backbone tube to the sensor; anda communication network including a common medium connecting the controller to the air intake valves so the controller can address messages over the common medium to one of the air intake valves.