A system and method includes at least one temperature sensor, a processing unit, and an output unit. The temperature sensor acquires a temperature measurement at a first location of an operational device, which first location is in thermal contact with a second location of the operational device. The processing unit selects a simulated temperature distribution of the first location of a simulated device from a plurality of simulated temperature distributions of the first location and compares the temperature measurement with simulated temperature distributions of the first location, and determines whether a hot spot exists or is developing at the second location. The determination comprises utilization of a correlation between the simulated temperature distribution of the first location and the second location for the selected simulated temperature distribution of the first location of the simulated device.

A digital sensor network is overlaid on an integrated circuit for identifying and mapping hotspots in the integrated circuit. The digital sensor network may include a plurality of digital sensors distributed within an area of an integrated circuit component of an integrated circuit. Each of the plurality of digital sensors may include a ring oscillator and may be configured to output a counter value of a ring oscillator counted over a designated period. A sensor network control unit may be provided that is communicatively connected to the plurality of digital sensors via a communication circuit. The sensor network control unit may be configured to receive a plurality of counter values including the counter value from each of the plurality of digital sensors and identify a hotspot within the area of the integrated circuit.

A digital sensor network is overlaid on an integrated circuit for identifying and mapping hotspots in the integrated circuit. The digital sensor network may include a plurality of digital sensors distributed within an area of an integrated circuit component of an integrated circuit. Each of the plurality of digital sensors may include a ring oscillator and may be configured to output a counter value of a ring oscillator counted over a designated period. A sensor network control unit may be provided that is communicatively connected to the plurality of digital sensors via a communication circuit. The sensor network control unit may be configured to receive a plurality of counter values including the counter value from each of the plurality of digital sensors and identify a hotspot within the area of the integrated circuit.

The present disclosure provides a measuring method for measuring heat distribution of a specific space using an SThM probe, and a method and device for detecting a beam spot of a light source. The method according to an embodiment of the present disclosure is the measuring method for measuring heat distribution of a specific space, the measuring method includes: linearly moving a SThM probe that may measure a temperature change in the specific space; and calculating heat distribution of the specific space using continuous temperature change values obtained from the SThM probe during the moving step. According to the measuring method, and the method and device for detecting a beam spot of a light source, it is possible to map temperature distribution in a small space using a SThM probe and it is possible to accurately detect a beam spot using the temperature distribution.

In an indoor environment on fire, automatic deployment of sensors disposed on, beneath or over the floor to look upward the ceiling to observe a body of smoke and flame risen near the ceiling allows important information regarding states and dynamics of the body of smoke and flame to be gathered at an early stage of fire (e.g. before arrival of firefighters). By distributing the sensors over the indoor environment, the states and dynamics of the body of smoke and flame are monitored holistically (i.e. as a whole) even at the early stage of fire. Such information is useful to predict development of the fire. In one implementation, a sensor is held in an infrastructure sensor holder mounted on the ceiling during normal time. Upon detecting occurrence of fire, the sensor drops from the holder to land on the floor and orients a sensing direction vertically upward to perform monitoring.

A fault detection system and method includes a sensor; a processing unit; and an output unit. The sensor is configured to acquire temperature data at a sensor location of a device, wherein the temperature data comprises first temperature data and second temperature data acquired a first time period after the first temperature data. The processing unit determines a temperature magnitude comprising utilization of the first temperature data and/or the second temperature data, and determines a rate of change of temperature. The processing unit predicts a temperature at a location of the device using the temperature magnitude, the rate of change of temperature, and a correlation, wherein the correlation is a correlation of a plurality of temperature magnitudes and a plurality of rate of change of temperatures at the sensor location with a plurality of hotspot temperatures at the location.

This invention relates to optimisation of the temperature range of thermochromic liquid crystal materials and to related methods and devices for temperature monitoring and measurement. The invention also relates to methods and devices for the improved registering of objects in contact with thermochromic liquid crystal materials.

An oven having multiple oven cavity temperature sensors that provide improved monitoring of oven temperature and that permit improved oven temperature control is provided. Multiple temperature values from the different sensors may be combined or analyzed to provide a more consistent and accurate measurement of the temperature of the food being cooked. Patterns of temperature as a function of location in the oven cavity may be analyzed to detect abnormal but correctable temperature inhomogeneities (for example, cold spots or stratification) and used to adjust parameters of the oven control, (for example, by fan speed/direction adjustment, cycle control of the fan and heater elements) to provide more even temperature distributions.

The present disclosure provides a measuring method for measuring heat distribution of a specific space using an SThM probe, and a method and device for detecting a beam spot of a light source.

The method according to an embodiment of the present disclosure is the measuring method for measuring heat distribution of a specific space, the measuring method includes: linearly moving a SThM probe that may measure a temperature change in the specific space; and calculating heat distribution of the specific space using continuous temperature change values obtained from the SThM probe during the moving step.

According to the measuring method, and the method and device for detecting a beam spot of a light source, it is possible to map temperature distribution in a small space using a SThM probe and it is possible to accurately detect a beam spot using the temperature distribution.

An optical fiber grating sensing method applied to small-scale fire source monitoring are provided, distinguishing two concepts of a spatial resolution and a perception resolution, under the premise of ensuring the spatial resolution of a traditional fiber Bragg grating sensing system, only increase the number of fiber Bragg gratings covered by a single pulsed optical signal without changing a pulse width of a pulsed optical signal, so as to improve the perception resolution of the system without increasing the requirements for a hardware circuit, and truly shorten an interval between adjacent fiber Bragg gratings. Improving the perception resolution of the system, which not only ensures the spatial resolution of the system, but also realizes the monitoring of small-scale fire sources; by adopting a simple feature extraction algorithm to obtain fire temperature information in different areas, the temperature detection speed of the system is fast.