A stove sensor system includes a non-contact infrared detector, a memory, a microcontroller unit and a communication module. The microcontroller unit runs a monitoring algorithm that receives input from the ambient temperature sensor and the non-contract infrared detector and stores tracking information within the memory. The communication module communicates to a cloud server to provide to the cloud server tracking information and alert information produced by the monitoring algorithm run by the microcontroller unit.

A method for measuring furnace temperatures. The method includes obtaining radiance measurements from a plurality of regions of interest (ROIs) using a plurality of thermal imaging cameras, and measuring a surface temperature using a radiance measurement obtained from an ROI selected from the plurality of ROIs. Measuring the surface temperature includes determining an effective background radiance affecting the selected ROI using radiance measurements obtained from ROIs different from the selected ROI, obtaining a compensated radiance by removing the effective background radiance from the radiance measurement obtained from the selected ROI, and converting the compensated radiance to the measured surface temperature.

A stove guard having a data processing unit and a heat sensor arrangement for receiving heat radiation from objects located in a given field of view and for delivering the detector signals indicative of the received heat radiation to the data processing unit. The heat sensor arrangement is arranged to generate detector signals differently corresponding to the heat radiation received from a central area of the field of view than to the heat radiation received from a circumferential area of the field of view.

A heating, ventilation, and air conditioning (HVAC) system. The HVAC system includes a sensor that detects a temperature of a heater of a heating component and emits a signal indicative of the temperature. A flow management device controls a flow of electricity or fuel from a power source to the heating component. A controller receives the signal from the sensor and operates the flow management device to block the flow of electricity or fuel to the heating component when the signal is indicative of the temperature being above a set point.

A dedicated self-cleaning cycle for a camera for imaging a cavity of an oven is provided. An indication is received to perform a localized pyrolytic cycle to clean a view port glass protecting an image sensor of the camera from heat or detritus in the cavity of the oven. Responsive to the indication, a camera viewport heating element configured to provide localized heating to the view port glass is operated to perform the localized pyrolytic cycle. The camera is utilized to view the cavity of the oven.

A method for measuring furnace temperatures. The method includes obtaining radiance measurements from a plurality of regions of interest (ROIs) using a plurality of thermal imaging cameras, and measuring a surface temperature using a radiance measurement obtained from an ROI selected from the plurality of ROIs. Measuring the surface temperature includes determining an effective background radiance affecting the selected ROI using radiance measurements obtained from ROIs different from the selected ROI, obtaining a compensated radiance by removing the effective background radiance from the radiance measurement obtained from the selected ROI, and converting the compensated radiance to the measured surface temperature.

A device for estimating an outer surface temperature of a radiant coil which is provided in an cracking furnace for ethylene production including a convection coil that preheats hydrocarbons as raw materials and steam, a radiant coil that thermally decomposes the preheated hydrocarbons and steam, and a housing for accommodating them, and which includes an imaging camera that images a region to be imaged of the radiant coil, and an image analyzer that processes an output signal from the imaging camera and estimates an outer surface temperature of the radiant coil.

A system for monitoring a coating layer in a rotary kiln includes an infrared sensor and a computing system configured to: obtain a digital model of a coating layer of a rotary kiln, wherein the digital model of the coating layer is based on a coating thickness correlated with a measured infrared temperature for each coating layer region of interest; obtain infrared data of the rotary kiln with the at least one infrared imaging sensor; determine the measured infrared temperature for each coating layer region of interest; determine a coating layer thickness of a first coating layer region of interest in the coating layer based on the measured infrared temperature assigned to the first coating layer region of interest with the digital model of the coating layer; and provide the coating layer thickness of the first coating region of interest in a coating layer thickness report.

A system and a method for determining/predicting a tapping time for a metal melt in an electric arc furnace (EAF), at least one electrode is provided for melting the metal melt until it reach a target tapping temperature, the EAF further includes a slag and smoke layer on the surface of the metal melt, wherein an electromagnetic stirrer is provided for stirring the metal melt.

A heater with an optical sensor for over-temperature protection. The heater includes a heating element and a sensor assembly including a coupler and an optical sensor. Wavelengths emanating from the heating element passes directly through the coupler to the optical sensor. The optical sensor provides an over-temperature feedback signal for limiting power to the heating element to avoid an over-temperature condition for the heating element.