Various embodiments are directed to facilitating imagery and point-cloud based facility modeling and remote change detection. A computing device may receive collected data for a facility. The collected data may include spatial image data obtained from light detection imaging and ranging systems (LiDAR), multispectral data, and thermal data. The computing device may then analyze, based on software models generated for previously collected data for the facility, the collected data to determine changes in the previously collected data. The computing device may then update the models upon determining changes in the previously collected data. Finally, the computing device may generate an alert based on the updated models when any changes in the previously collected data are above a predetermined threshold corresponding to a current security or operational condition associated with the facility.

A temperature-regulating unit includes a base, a thermal element, a contactless sensing assembly, and a controller. The base is configured to support at least one of a pan or a food product. The thermal element is positioned to thermally regulate the at least one of the pan or the food product. The contactless sensing assembly is positioned to acquire sensor data regarding the at least one of the pan or the food product. The controller is configured to receive the sensor data from the contactless sensing assembly and adaptively control the thermal element based on the sensor data.

A bidirectional reflectance distribution function (BRDF) measurement system and method, an electronic device, and a storage medium. The BRDF measurement system includes: a blackbody, a spectroradiometer and a controller; where in case that the blackbody is heated to a target temperature, it undergoes a solid-liquid phase change; the spectroradiometer is used to measure the blackbody and transmit a first measurement signal to the controller, and in case that the blackbody irradiates a to-be-measured point on a sample surface, the spectroradiometer is further used to measure radiation from the to-be-measured point, and transmit a second measurement signal to the controller; and the controller is used to obtain a BRDF of the to-be-measured point based on the first measurement signal, the second measurement signal, the target geometric relationship, a target mapping relationship and a dimension parameter of the blackbody.

An endoscope system includes an observation optical system, a beam splitter configured to branch light from the observation optical system into first light including visible light from a subject and second light for temperature measurement, an image pickup device configure to receive the first light from the beam splitter and pick up an image of the subject, a spectroscope configured to receive the second light from the beam splitter and measure plural spectral radiances of the subject, and a personal computer configured to calculate the temperature of the subject based on an output signal including the plural spectral radiances of the spectroscope.

The invention relates to a device for the spectrally resolved detection of optical radiation (5) during a thermal process, more particularly during laser processing. The device comprises at least two elements (4.1, 4.2) which are light-sensitive in one 5 predefined wavelength range each, a reflective diffraction grating (2), and at least one lens (3) for focusing and collimation. The device optionally comprises a reflective beam splitter (1) designed to divide the incident optical radiation (5) into a plurality of partial beams (5.1, 5.2). Said reflective beam splitter (1) is disposed upstream of the at least one lens (3) along the propagation direction of the optical radiation (5). The partial beams (5.1, 5.2) are spectrally split by means of the diffraction grating (2), and at least the first order of diffraction is deflected back through the at least one lens (3) onto one of the light-sensitive elements (4.1, 4.2).

A gas analyzing apparatus includes first and second laser sources that output first and second laser lights, a laser controller that controls the first and second laser sources to vary wavelengths of the first and second laser lights in the respective predetermined wavelength ranges, an optical multiplexer that multiplexes the first and second laser lights to transmit the multiplexed laser light to a target gas, an optical receiver that receives the laser light transmitted through the target gas, and an analyzer that analyzes a temperature and/or a concentration of the target gas based on an electric signal output from the optical receiver. While varying the wavelengths of the laser lights, the laser controller controls amplitudes of the first and second laser lights to differ from each other and varies intensities of the first and second laser lights in the opposite direction.

Various embodiments are directed to facilitating imagery and point-cloud based facility modeling and remote change detection. A computing device may receive collected data for a facility. The collected data may include spatial image data obtained from light detection imaging and ranging systems (LiDAR), multispectral data, and thermal data. The computing device may then analyze, based on software models generated for previously collected data for the facility, the collected data to determine changes in the previously collected data. The computing device may then update the models upon determining changes in the previously collected data. Finally, the computing device may generate an alert based on the updated models when any changes in the previously collected data are above a predetermined threshold corresponding to a current security or operational condition associated with the facility.

A method of measuring a temperature of a thermally-insulated, high temperature system. The method includes directing a first electromagnetic energy into the high temperature system so that the first electromagnetic energy may cause multi-photon ionization of a molecular or atomic species within the high temperature system. A second electromagnetic energy resulting from the multi-photon ionization is detected through a thermally-insulating wall of the high temperature system. The detected second electromagnetic energy is related to a temperature within the high temperature system.

An indicator device including a protective layer, an optically reflective layer, a polymeric material layer disposed between and coupling the protective layer to the optically reflective layer, and a dye disposed within the polymeric material layer, the dye being sensitive to external stimuli.

Devices, methods, and systems for calibrating an infrared (IR) sensor in a fire sensing device are described herein. One device includes a camera configured to capture an image of an environment, an IR sensor configured to detect a radiation level of the environment, and a controller configured to compare a radiation level of the image of the environment captured by the camera to the radiation level of the environment detected by the IR sensor and calibrate the IR sensor based on the comparison.