Provided is a determination apparatus including: a determination unit configured to determine, based on a carbon dioxide concentration in a determination target, a situation of the carbon dioxide concentration in the determination target and a measurement situation of the carbon dioxide concentration in the determination target; a notification unit configured to notify a determination result by the determination unit; an information acquisition unit configured to acquire improvement information according to at least one of a situation of the carbon dioxide concentration and a measurement situation of the carbon dioxide concentration; and a control unit configured to control the notification unit to have the notification unit notify the determination result and the improvement information.

We disclose herein an electronic device comprising: a state machine for receiving an output signal from a sensor; a comparator operatively coupled with the state machine; and a first processor operatively coupled with the comparator. The state machine is configured to receive the output signal from the at least one sensor to obtain sensor measurement data and configured to pass the obtained sensor measurement data to the comparator. The comparator is configured to process the obtained sensor measurement data into first processed sensor data, and configured to compare the first processed sensor data with a first predetermined threshold limit. The comparator is configured to inform the first processor about the obtained sensor measurement data if the first processed sensor data exceed the first predetermined threshold limit.

Devices and techniques related to landfill gas extraction are disclosed. A technique for controlling extraction of landfill gas from a landfill through a gas extraction system is described. The method may include measuring a plurality of values indicating conditions associated with the landfill; computing, based at least in part on the plurality of values and on a model of the landfill, a predicted future state of the landfill; determining, based at least in part on the predicted future state of the landfill, one or more control parameters for one or more respective control devices configured to control operation of the gas extraction system; applying the one or more control parameters to the one or more respective control, and with the one or more control devices, controlling extraction of the landfill gas from the landfill based, at least in part, on the one or more respective control parameters.

A gas detection device and a gas detection process monitor an area for a combustible target gas. A detector (10), a compensator (11.1), a sensor array (40, 41) and an analysis unit (9) are arranged in a gas detection device housing. The detector includes an electrically conductive wire with a heating segment (20), electrical insulation around the wire and a catalytic material in the electrical insulation. The compensator extends in a plane and includes an electrical strip conductor (32) with a heating segment and a carrier plate for the strip conductor. The gas detection device applies an electrical voltage to the detector and to the compensator. The detector oxidizes the target gas with the heating segment. The sensor array measures detection variables (U10, U11) for the detector and the compensator. The analysis unit compares the two detection variables to determine if a combustible target gas is present.

A traffic pollution mapper detects pollution variations and generates mapping information for establishing one or more pollution maps. The traffic pollution mapper includes one or more pollution detectors, installed on vehicles, that detect pollution and generate pollution information from the same as the vehicles travel through traffic. This pollution information may be combined with location information and a timestamp to create mapping information that is stored on a server. The mapping information may be queried by one or more client devices in various formats, including as a pollution map. The traffic pollution mapper may utilize various sensors to detect pollution, including automotive AQSs that provide binary open and close signals.

A vehicle control system includes: a first vehicle including a smell detection unit, a smell determination unit configured to determine whether an intensity of the smell is equal to or larger than a predetermined threshold value, a first acquisition unit configured to acquire first vehicle position information indicating a position of the first vehicle, and a notification unit configured to notify a second vehicle about the first vehicle position information when the smell determination unit determines that the intensity of the smell is equal to or larger than the predetermined threshold value; and a second vehicle configured to communicate with the first vehicle and including an information output processing unit configured to cause an information output unit to output a warning notifying about a presence of the first vehicle when an approach determination unit determines that first vehicle is positioned less than the predetermined distance from the second vehicle.

Disclosed are various embodiments for determining whether food in a refrigerator has spoiled. An application executing on a computing device receives an identification of a food item located in a compartment of the refrigerator. The application then receives a chemical sensor reading from the refrigerator, wherein the chemical sensor reading represents a measured amount of a chemical associated with spoilage of the food item. Subsequently, the application determines that the measured amount of the chemical associated with spoilage of the food item exceeds a threshold amount of the chemical associated with spoilage of the food item. Finally, the application sends a notification to the client device, the notification comprising an indication that the food item is spoiled.

An optical detector device may receive a spectroscopic measurement from a multispectral sensor. The optical detector device may determine, based on the spectroscopic measurement, a particulate size of a particulate. The optical detector device may determine, based on the spectroscopic measurement, an identification of the particulate. The optical detector device may determine, based on the particulate size and the identification of the particulate, that an alert condition is satisfied. The optical detector device may trigger an alert based on determining that the alert condition is satisfied.

A monitoring system (100) is provided for flight crew members (99), e.g., aviators, pilots, copilots or passengers, of airplanes or aircraft, e.g., airplanes or helicopters of the civil or military aviation, passenger planes in the scheduled or charter service, especially also ultrafast passenger planes. The monitoring system includes a sensor mechanism and a control unit configured to organize a procedure of a measurement-based monitoring of the gas composition of air, breathing air or breathing gases with the sensor mechanism in an airplane or aircraft, and to control or regulate the procedure. A measurement-based detection of gas concentrations is carried out with the sensor mechanism (60).

An electrochemical sensor is provided having a housing with an opening therein. The housing defines a chamber. The sensor includes a primary cell having a primary working electrode aligned with the opening in the housing so that the primary working electrode is exposed to an environment outside of the chamber. A primary counter electrode is sealed within the chamber. The sensor includes a secondary cell having a secondary working electrode sealed within the chamber, and a secondary counter electrode sealed within the chamber.