| CPC G01N 21/3504 (2013.01) [G01F 1/46 (2013.01); G01N 21/61 (2013.01)] | 13 Claims |
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1. A system comprising:
a flow valve coupled to a gas inlet of a landfill gas system;
a pump coupled to the flow valve and configured to draw gas from the landfill gas system via the gas inlet;
an exhaust port configured to direct the gas into a methane detection device, wherein the methane detection device is configured to detect at least a methane concentration in the gas;
a static pressure transducer positioned between the flow valve and the gas inlet, the static pressure transducer configured to sense a static pressure when the flow valve is in a closed position;
a barometric pressure transducer coupled to the gas inlet, the barometric pressure transducer configured to sense an atmospheric pressure via a path to the atmosphere;
a main board comprising a computer processor and a plurality of receiving connectors each configured to mechanically and electronically couple with any one of a plurality of smart sensor block assemblies, wherein the receiving connectors provide respective communication paths between the computer processor and the coupled smart block assemblies;
a plurality of smart sensor block assemblies configured to sense concentrations of a respective plurality of chemicals in the gas, each smart sensor block assembly comprising:
a chemical sensor configured to access the gas drawn from the landfill gas system and to output sensor data indicative of a concentration of one of the plurality of chemicals in the gas;
a memory storing predetermined calibration data generated and stored in the memory prior to installation of the smart sensor block assembly with the main board; and
an adapting connector removably mechanically and electronically coupled to one of the receiving connectors of the main board, the adapting connector configured to transmit the predetermined calibration data and the sensor data to the main board via the adapting connector; and
a communication interface coupled to the computer processor and configured to communicate the sensed data to a mobile control device,
wherein the main board is configured to apply the predetermined calibration data from each smart sensor block assembly to the corresponding sensor data to determine adjusted sensor data that is normalized with reference to other sensors.
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