A luminaire comprises at least one light emitting diode (LED) as a light source. Such LED comprises a limited light emitting angle for the emitted light radiation. Outside of the light emitting angle, an infrared sensor is assigned to the light source for detecting its temperature.

A fault detection device includes a thermal camera that takes thermal images of an electrical system. The fault detection device includes a processor that receives thermal images of the electrical system from the thermal camera and processes a temperature of an electrical component of the electrical system from the thermal images. The processor also processes a predicted temperature of the electrical component from the current passing through the component and the ambient temperature. The health of the electrical component and faults in the electrical system can be determined from the temperature difference between the measured temperature of the electrical component and the predicted temperature of the electrical component.

For generating a diagnosis, a method irradiates a product surface of a product with infrared light, the product surface including a stress sensitive pigment. The method detects an activation of the stress sensitive pigment as a color change at an infrared visible activation location. The method generates a diagnosis based on the activation.

Techniques discussed herein relate to an image based operational health detection which involves obtaining one or more images depicting an aerial view of a physical structure. The method for obtains one or more attributes associated with the physical structure and identifies a surface temperature corresponding to a portion of the physical structure from the one or more images depicting the aerial view of the physical structure. In addition, the method may determine a temperature control system associated with the physical structure is likely operating a reduced capacity based at least in part on the surface temperature and the one or more attributes associated with the physical structure and execute one or more operations based at least in part on determining that the temperature control system associated with the physical structure is likely operating the reduced capacity.

A medium voltage switchgear or controlgear monitoring system includes: an infrared camera; and a processing unit. The infrared camera is mounted within a medium voltage switchgear or controlgear. The infrared camera is configured to acquires an infrared image including image data of two or three current carrying parts of the switchgear or control gear. The two or three current carrying parts are the same current carry part of two or three equivalent systems within the switchgear or controlgear. The infrared camera provides the infrared image to the processing unit. The processing unit determines that the two or three current carrying parts are operating correctly or that one of the two or three current carrying parts has a fault. The determination includes analysis of the infrared image by an autoencoder implemented by the processing unit.

A system for monitoring a switchgear includes multiple infrared cameras with fields of view; a processing unit; and an output unit. The cameras acquire multiple image data of a plurality of phases of the switchgear, and the processing unit determines whether there is a phase imbalance in a specific phase comprising a determination from a plurality of image data that temperature information for a plurality of component parts and/or a plurality of connections for that specific phase has an overall enhanced temperature compared to the temperature information for the same plurality of component parts and/or the same plurality of connections for one or more other phases of the plurality of phases. The output unit is configured to output information that a fault or load imbalance has occurred in a phase.

A temperature abnormality detection device includes a plurality of infrared temperature sensors respectively capable of detecting temperature in a different detection area of an equipment, and a device body including a temperature abnormality determination unit that determines that the temperature in the detection area detected by each of the plurality of infrared temperature sensors is abnormal when the temperature in the detection area is higher than a reference temperature. The plurality of infrared temperature sensors is connected to each other by crossover wiring.

This application provides an electric leakage detection method for an electronic component, an electronic device, and a storage medium, and relates to the field of electric leakage protection technologies for electronic components. The method includes: acquiring, by the electronic device when the electronic device executes the target task, a target temperature value at a target position on the first electronic component measured by a target temperature sensor, where the target temperature sensor is one of the plurality of second electronic components; determining, by the electronic device, a target temperature reference value corresponding to the target position from the temperature distribution information of the first electronic component; and determining, by the electronic device when a difference value between the target temperature value and the target temperature reference value is greater than or equal to a first threshold, that the first electronic component leaks electricity.

According to one aspect, a method for remote monitoring of electrical equipment includes acquiring a set of data points, each data point representing a temperature associated with a piece of electrical equipment or a component thereof, assigning each data point to one or more groups of data points, and defining an alarm metric for each group. Each group's alarm metric may be defined independently of other group's metrics. The defined alarm metrics are used to determine the health of the electrical equipment. The data may be determined from virtual probes within an infrared sensor and/or received from RFID devices containing temperature sensor, which are attached to or near the equipment to be monitored, for example. The methods described herein do not require conversion of sensor data into temperature values, and thus obviate the need for expensive sensors and/or computationally demanding conversion, compensation, and calibration routines.

A system for monitoring a switchgear includes an infrared camera; a processing unit; and an output unit. The camera acquires a first infrared image. The processing unit determines a pixel in the first image with a maximum temperature and uses a second number of pixels to determine a temperature interval. The processing unit sorts the pixels in descending order of temperature to determine a threshold temperature and determines that a hot spot exists in the switchgear using the temperature interval for the first infrared image. The output unit is configured to output an indication of a fault in the switchgear when the determination has been made that a hot spot exists in the switchgear.