Certain examples relate to a terrestrial terahertz imaging system. In one example, the terrestrial terahertz imaging system has an imaging assembly to form a first image of at least a portion of an object using electromagnetic radiation in a terahertz band of frequencies and a receiver assembly comprising a cryostat. The cryostat contains a detector and reflective cold re-imaging optical components to receive the electromagnetic radiation from the imaging assembly. The reflective cold re-imaging optical components form a second image of at least a portion of the object on the detector. The imaging assembly has reflective optical components arranged in a confocal configuration that is arranged to image at finite conjugates. The reflective cold re-imaging optical components implement a reflective, confocal optical relay. Other examples relate to body and vehicle scanning devices that may be used in security applications.

An information processing apparatus includes an input unit and a control unit. The input unit to which sensing information and coordinate information are input, the sensing information being obtained by sensing a space in which video is projected, the coordinate information being obtained by pointing through a pointing operation of the space by a user. The control unit stores setting information for setting a projection region in a predetermined range in a storage unit on the basis of a result of analyzing a state in the space on the basis of the sensing information and the coordinate information. Then, the control unit controls, in a case where a projection region is designated by the user on the basis of the stored setting information, a projection apparatus to project the video onto the projection region.

Crosstalk mitigation among cameras in neighboring monitored workcells is achieved by computationally defining a noninterference scheme that respects the independent monitoring and operation of each workcell. The scheme may involve communication between adjacent cells to adjudicate non-interfering camera operation or system-wide mapping of interference risks and mitigation thereof. Mitigation strategies can involve time-division and/or frequency-division multiplexing.

A system for the active remote detection of radioactivity from a target of interest includes a first laser source for generating an ionizing laser beam when remotely directed on a radioactive target of interest, a second laser source for generating a laser probe beam on the radioactive target of interest, and a spectrometer configured to measure the frequency modulation of the probe beam caused by the ionization from the radioactive target of interest.

A system and method for detecting a suspicious object, including a wireless signal transmitter with first and second transmitter antennas, a first wireless signal receiver on an opposite side of the object from the transmitter having first and second receiver antennas, and a second wireless signal receiver on a same side of the object as the transmitter having a third receiver antenna. The transmitter may emit wireless signals from each of the transmitter antennas. The signals emitted by the first transmitter antenna may be received at the first and second receiver antennas. The signals emitted by both transmitter antennas may be received at the third receiver antenna. The object's material type may be determined based on channel state information of the wireless signals received at first receiver. A size of the object may be determined based on channel state information of the wireless signals received at the second receiver.

A parking management system is described that includes a light detector, a reflector positioned within a parking space and aligned to direct received light to the light detector, and a processor receiving a signal from the light detector that indicates an amount of light detected by the light detector. The processor causes a parking space indicator to indicate that the parking space is unoccupied based on the amount of light detected by the light detector being greater than a threshold, and causes the parking space indicator to indicate that the parking space is occupied based on the amount of light detected by the light detector being less than the threshold.

An automatic water faucet device 1 for automatically discharging water when an object to be detected is detected has: a sensor 14 that detects the object; a first water discharge part 12 that performs foamy water discharge; a second water discharge part 13 that performs spray water discharge; and a controller 40 that performs control for switching between the foamy water discharge from the first water discharge part 12 and the spray water discharge from the second water discharge part 13, wherein the controller 40 performs the foamy water discharge from the first water discharge part 12 while the sensor 14 detects the object, and when the sensor 14 no longer detects the object, the controller 40 stops this foamy water discharge, and thereafter performs spray water discharge from the second water discharge part 13 for a predetermined period.

An automatic water faucet device 1 includes: an electrolysis tank 37 that electrolyzes water to generate electrolyzed water; a second water discharge part 13 for discharging the electrolyzed water, a second flow path 18 that extends from the electrolysis tank 37 to the second water discharge part 13; a second solenoid valve 28 that switches between supply and blocking of normal water with respect to the electrolysis tank 37, and a controller 40 that controls the electrolysis tank 37 and the second solenoid valve 28. The controller 40 energizes the electrolysis tank 37 to discharge the electrolyzed water and thereafter stops the energization of the electrolysis tank 37 and maintains an open state of the second solenoid valve 28, to stop the supply of the electrolyzed water to the second flow path 18 and to supply normal water to the second flow path 18.

A device may include a first infrared sensor, a second infrared sensor, a temperature detecting component, and an occupancy detecting component. The first infrared sensor may connect to the temperature detecting component through a first temperature signal path and the occupancy detecting component through a first occupancy signal path. The second infrared sensor may connect to the temperature detecting component through a second temperature signal path and the occupancy detecting component through a second occupancy signal path. The temperature detecting component may determine a temperature measurement by calculating an average of a value received from the first temperature signal path and a value received from the second temperature signal path. The occupancy detecting component may determine an occupancy measurement by calculating a difference of the value received from the first occupancy signal path and the value received from the second occupancy signal path.

A device may include a first infrared sensor, a second infrared sensor, a temperature detecting component, and an occupancy detecting component. The first infrared sensor may connect to the temperature detecting component through a first temperature signal path and the occupancy detecting component through a first occupancy signal path. The second infrared sensor may connect to the temperature detecting component through a second temperature signal path and the occupancy detecting component through a second occupancy signal path. The temperature detecting component may determine a temperature measurement by calculating an average of a value received from the first temperature signal path and a value received from the second temperature signal path. The occupancy detecting component may determine an occupancy measurement by calculating a difference of the value received from the first occupancy signal path and the value received from the second occupancy signal path.