The present invention relates to a trench cross-section reference line setting device, comprising: a trench reference line setting body unit (100) for setting a trench cross-section reference line, wherein the trench reference line setting body unit (100) has a sensor unit (10) at the center thereof, two horizontal units (20) orthogonal to each other on the upper surface thereof, and three laser light source units (30) and a grid photographing unit (110′), respectively, on the side surfaces thereof; a reference line setting tripod unit (200) rotatably coupled to the trench reference line setting body unit (100) and having a posture adjusting unit (230) and a height adjusting unit (250); and a trench stratum analysis server (300) for receiving a fault image photographed by the grid photographing unit (110′) of the trench reference line setting body unit (100) and creating a stratum map of a trench cross-section structure.

An embodiment of a barrier assembly includes a housing having an aperture and a magnet at least partially disposed within the housing. A first surface of the magnet is exposed. The barrier assembly also includes a light-emitting component disposed within the aperture. Another embodiment of a barrier assembly includes a housing having a plurality of apertures formed about a perimeter of the housing. The barrier assembly also includes a magnet at least partially embedded within the housing and the magnet includes an opening formed through a center of the magnet and a plurality of light-emitting components, each light-emitting component at least partially disposed within a corresponding aperture of the plurality of apertures.

An embodiment of a barrier assembly includes a housing having an aperture and a magnet at least partially disposed within the housing. A first surface of the magnet is exposed. The barrier assembly also includes a light-emitting component disposed within the aperture. Another embodiment of a barrier assembly includes a housing having a plurality of apertures formed about a perimeter of the housing. The barrier assembly also includes a magnet at least partially embedded within the housing and the magnet includes an opening formed through a center of the magnet and a plurality of light-emitting components, each light-emitting component at least partially disposed within a corresponding aperture of the plurality of apertures.

A light receiver outputs a log indicating at least one of an operating status of a multiple optical axis photoelectric sensor and an environment surrounding the multiple optical axis photoelectric sensor, at the time of an output being turned off.

A light receiver outputs a log indicating at least one of an operating status of a multiple optical axis photoelectric sensor and an environment surrounding the multiple optical axis photoelectric sensor, at the time of an output being turned off.

The invention relates to a system for monitoring an airspace for an extensive area, with at least two optical sensors with a passive Fourier transform infrared spectrometer, wherein each optical sensor has an adjustable monitoring range and wherein the monitoring ranges of the at least two optical sensors overlap at least in sections, having a server for evaluating the measurement data and for controlling the at least two optical sensors, the server being set up to monitor the optical sensors for automatic scanning of the monitored areas, wherein the server assigns a respective solid angle to the measurement data on the basis of the position data of the optical sensor, evaluates the measurement data of the optical sensors to derive the spectral intensity distribution of the received IR radiation for each solid angle and, by means of correlation of the intensity distribution with known gas spectra, to identify at least one target substance, in the event of an incident, if a first optical sensor identifies a target substance in a first solid angle, to control at least one further optical sensor, to scan the overlap region with the monitoring region of the first optical sensor, to identify the target substance from the measurement data of the at least one further optical sensor and, in the event of an incident, to control at least one further optical sensor, to scan the overlap region with the monitoring region of the first optical sensor, to identify the target substance from the measurement data of the at least one further optical sensor, identifying at least one further solid angle with an infrared signal of the target substance, and determining the coordinates of the overlap region with increased concentration of the target substance from the solid angle information of the first solid angle and of the at least one further solid angle, wherein the measurement signals of the at least one further optical sensor in spatial directions with too small a measurement radius are not included in the evaluation.

An optical shooting accuracy indication system, comprising apparatus for generating a single-layer optical screen with alternatingly switching first and second light sources; a control apparatus for distinguishing between the light that is emitted by said first and second light sources during different first and second time domains, respectively, and for identifying an impingement region of a fired projectile through the generated optical screen.

An optical shooting accuracy indication system, comprising apparatus for generating a single-layer optical screen with alternatingly switching first and second light sources; a control apparatus for distinguishing between the light that is emitted by said first and second light sources during different first and second time domains, respectively, and for identifying an impingement region of a fired projectile through the generated optical screen.

A sensor assembly may include a housing and a collection of optical sensors. The housing may include a base portion, and a raised portion defining a summit of the housing. A collection of optical sensors may include a first set of forward-facing optical sensors individually aligned with a corresponding opening in a front segment of the base portion for the housing, a second set of rear-facing optical sensors individually aligned with a corresponding opening in a rear segment of the base portion for the housing, and multiple sets of lateral optical sensors. Each set of lateral optical sensors may be aligned with a corresponding opening in one of multiple lateral segments of the base portion of the housing. Additionally, at least a first long distance sensor may be mounted on the summit.

A sensor assembly may include a housing and a collection of optical sensors. The housing may include a base portion, and a raised portion defining a summit of the housing. A collection of optical sensors may include a first set of forward-facing optical sensors individually aligned with a corresponding opening in a front segment of the base portion for the housing, a second set of rear-facing optical sensors individually aligned with a corresponding opening in a rear segment of the base portion for the housing, and multiple sets of lateral optical sensors. Each set of lateral optical sensors may be aligned with a corresponding opening in one of multiple lateral segments of the base portion of the housing. Additionally, at least a first long distance sensor may be mounted on the summit.