A security sensor device includes: a plurality of sensor units each of which includes an infrared ray detection element having a visual field in a predetermined target direction, the plurality of sensor units aligned in a predetermined arrangement direction; a plurality of optical systems through which detection rays transmit from a corresponding detection area to each infrared ray detection element, the plurality of optical systems aligned in the predetermined arrangement direction; a target object detection circuit into which an output signal is input from each infrared ray detection element; and a switching unit which is configured to change a configuration between each of the plurality of sensor units and the plurality of optical systems according to a user operation, so that two detections of low-place mounting detection and high-place mounting detection are respectively performed.

An infrared thermometer capable of switching a forehead temperature measurement mode and an ear temperature measurement mode and a switching method are disclosed. The infrared thermometer includes an infrared thermometer body and a forehead temperature measurement cover. The infrared thermometer body has a measuring probe and a printed circuit board. The printed circuit board is connected with a first electrical contact. The forehead temperature measurement cover has a thermistor and a second electrical contact. The forehead temperature measurement cover is detachably connected to the infrared thermometer body to selectively cover or expose the measuring probe for switching the forehead temperature measurement mode and the ear temperature measurement mode.

A flame or gas detection method includes determining non-imaging sensor system detection state for a scene of interest, determining an imaging sensor system detection state for the scene of interest, and validating one of the non-imaging sensor system detection state and the imaging sensor system detection state with the other of the non-imaging sensor system detection state and the imaging sensor system detection state. A flame or gas detecting system detection state is then indicated at a user interface including the validated one of the non-imaging sensor system detection state and the imaging system detection state. Flame or gas detection systems and computer program products are also described.

A multi-zone monitoring system is disclosed. The system includes a plurality of sensor modules configured to monitor conditions in a plurality of detection zones. The sensor modules include a combination of detection devices configured to detect different conditions based on a designated zone of each sensor module. The system further includes a reporting device in communication with each of the sensor modules. The reporting device is configured to report the status of each of the detection zones based on indications communicated via the detection devices in the corresponding detection zone.

According to one embodiment of the present disclosure, there is provided an ultraviolet detector, including: an ultraviolet ray transmitting part configured to transmit ultraviolet ray contained in incident light; a wavelength conversion part configured to convert the ultraviolet ray transmitted through the ultraviolet ray transmitting part into visible light; and a visible light receiving part configured to detect the visible light obtained by the wavelength conversion part.

The present invention relates to a method for detecting the presence of gas hydrates and/or ice in a medium. The method comprises at least the following steps: measuring at least at one measurement point in said medium two characteristic values of Raman spectra corresponding to two distinct vibration modes of the OH bonds of water, and determining the ratio of said two characteristic values, determining the temperature T in said medium at said measurement point of said spectra, comparing ratio with a value .sub.0 corresponding to a predetermined threshold of formation of said crystals for said temperature T, and determining the presence or not of hydrate and/or ice crystals from said comparison.

A system and method for use in environment with electrical equipment is provided. The system including a housing and at least one light source located on an exterior of the housing. The light source being activated when the system is in a switching mode of operation. At least one sensor is operably coupled to the housing and configured to measure at least one parameter associated with the electrical equipment. A computing device is disposed within the housing and coupled to communicate with the at least one light source and the at least one sensor.

A method and apparatus to determine a temperature of a substrate using a spectrum of radiation is disclosed herein. In one aspect, a process chamber includes a lamp assembly optically coupled to a spectrometer. The spectrometer is used to determine a temperature of a substrate within the process chamber. A controller is coupled to the spectrometer and controls the lamp assembly to selectively heat and cool the substrate. In another aspect, a method of includes exposing a substrate to a radiation source. A spectrum of radiation is detected by a spectrometer across a substrate. The spectrum of radiation passed through the substrate is determined and used to determine a temperature of the substrate.

Methods and systems for controlling tintable windows based on cloud detection.

A video-based food safety compliance system for use in a food area of a building includes a video camera having a field of view that encompasses at least part of the food area, a user interface and a controller that is operably coupled to the video camera and to the user interface. The controller is configured to receive video from the video camera and to analyze the video to determine when one or more food safety compliance rules are violated. The controller outputs an alert in response to determining that one or more of the food safety compliance rules have been violated.