Honeywell International Inc.

Dongil Ko

JePhil Ahn

Junseong Park

Jeffrey Lee

Chikang Lee

ByungYong Lee

KiHo Bang

A gas-detecting apparatus, having a gas inlet and a gas outlet, for detecting a false alarm is disclosed. The gas-detecting apparatus comprises a control module, a sensor module, and an air chamber. In an example embodiment, the sensor module is electrically connected with the control module. The sensor module has a sensor inlet and a sensor outlet. The sensor inlet is fluidly coupled to the gas inlet of the gas-detecting apparatus. The air chamber has an air inlet and an air outlet, wherein the air inlet is fluidly coupled to the gas inlet of the gas-detecting apparatus and the air outlet is fluidly coupled to the gas outlet. The control module is configured to receive a first sensing signal for a first level of gas from the sensor module and determine whether magnitude of the first sensing signal is higher than a first threshold value. In an instance when the magnitude of the first sensing signal is higher than the first threshold value, the control module causes the air chamber to supply ambient air to the sensor module through the sensor inlet of the sensor module.

Method and system for detecting a false alarm event in gas detection

An explosion-proof electronic system. The system comprises a substantially explosion-proof enclosure, a substantially explosion-proof glass window forming a portion of the enclosure, an electrical coil located within the enclosure, an electrical excitation circuit located within the enclosure and connected to the electrical coil, where the excitation circuit is configured to cause the electrical coil to establish a magnetic field that extends through the explosion-proof glass window, and a processor located within the enclosure and coupled to the electrical excitation circuit. The processor is configured to monitor the electrical excitation circuit, determine an electrical inductance of the electrical coil based on monitoring the electrical excitation circuit, identify a fluctuation of the electrical inductance that exceeds a predetermined threshold as a control input, and transmit an output in response to the control input, whereby a human operator can provide the control input by bringing a finger proximate to the explosion-proof glass window.

Inductor type touch input in explosion-proof electronic enclosure

Growing community of inventors

Seoul, South Korea

Dongil Ko