Selectively mobile system and method detect and locate information to determine repair or replacement needs for bridge and roadway infrastructure by detection of subsurface defects. Multiple sensors collect data to be fused include 1) Visual capture device or devices [16] aboard a mobile carrier [10] capture visual spectrum in either HD or regular video and/or as still frame camera images; 2) Infrared spectrum sensors [18] aboard the mobile carrier capture video or still frame images; 3) Global positioning sensors (GPS) [12] aboard the mobile carrier determine position; 4) Light detection and ranging system (LIDAR) aboard the mobile carrier gives precise locations. Further, 5) ground penetrating microwave radar (GPR) sensors carried by a vehicle [22] and related electronics determine depth of subsurface defects. The sensor systems supply data to a digital processor [40] having analysis and graphical information system (GIS) software [44] that fuses the data and presents it for delivery and use.

An object of the present invention is to provide a photosensor unit with a structure which is simple and also does not cause decrease in detection accuracy. Provided is a photosensor unit including a light emitting element 1 and a light receiving element 2 housed in a unit case 3, and configured such that reflected light of detection light emitted from the light emitting element 1 to the outside of the unit case 3 is received with the light receiving element 2, the reflected light being reflected from the outside of the unit case 3. A plurality of the light emitting elements 1 are disposed around the light receiving element 2, and a passage space for the reflected light inside the unit case 3 is separated from a passage space for the detection light inside the unit case 3 by an appropriate partition 4.

Systems and methods of using active infrared (AIR) sensors to map a room of a home or building and determine whether an external portal (e.g., window and/or door) of the room is open or closed are provided. In particular, the systems and methods include outputting infrared (IR) light from an IR light source of an active infrared (AIR) sensor, receiving reflected IR light with a light sensor, and determining, with a processor coupled to the light sensor, whether a window of a room is open according to the received reflected IR light.

Apparatus and methods for navigation of a robotic device configured to operate in an environment comprising objects and/or persons. Location of objects and/or persons may changed prior and/or during operation of the robot. In one embodiment, a bistatic sensor comprises a transmitter and a receiver. The receiver may be spatially displaced from the transmitter. The transmitter may project a pattern on a surface in the direction of robot movement. In one variant, the pattern comprises an encoded portion and an information portion. The information portion may be used to communicate information related to robot movement to one or more persons. The encoded portion may be used to determine presence of one or more object in the path of the robot. The receiver may sample a reflected pattern and compare it with the transmitted pattern. Based on a similarity measure breaching a threshold, indication of object present may be produced.

An autonomous vehicle (AV) can include a predictive sensor configuration system that can dynamically detect reflectance anomalies that affect detectability by sensor array of the AV as the AV travels a current route. The predictive sensor configuration system can dynamically determine one or more configurations for the sensor array to attempt to positively identify the reflectance anomalies, and preemptively execute the one or more configurations for the sensor array as the AV travels the current route.

An autonomous vehicle (AV) can include a predictive sensor configuration system that can dynamically detect reflectance anomalies that affect detectability by sensor array of the AV as the AV travels a current route. The predictive sensor configuration system can dynamically determine one or more configurations for the sensor array to attempt to positively identify the reflectance anomalies, and preemptively execute the one or more configurations for the sensor array as the AV travels the current route.

An electronic device includes: a memory; a first infrared-ray emitter that emits a first infrared ray; a second infrared-ray emitter that emits a second infrared ray whose wavelength is partially overlapped with a wavelength of the first infrared ray; and a processor that is connected to the memory, the first infrared-ray emitter, and the second infrared-ray emitter. The processor is configured to determine whether an object is located in proximity to a device concerned during a proximity determination period based on a reflected light of the first infrared ray emitted, generate a capture image based on a reflected light of the second infrared ray emitted, conduct biometric authentication during an authentication period by using the capture image generated, and during the proximity determination period, stop emission of the second infrared ray or decrease an emission intensity of the second infrared ray from a reference level.

Optical systems and methods for object detection and location. One example of an optical system includes a laser radar optical source positioned to emit a pulsed laser beam, a non-mechanical beamsteering device positioned to scan the beam in a linear scan over a first area of a scene, a laser radar detector positioned to receive and integrate a reflection of the beam, a read-out integrated circuit (ROIC) configured to provide a first read-out signal based on the integrated reflection, and a controller configured to receive the first read-out signal, determine a range to the first area based on a time of flight of the pulsed laser beam, and identify a presence of an object within the scene based on a signal level of the first read-out signal, the first signal level corresponding to a reflectivity of a portion of the object within the first area of the scene.

An apparatus for determining a distance to a target area, including at least one imaging system configured to provide at least two images of a target area, the images being associated with different imaging axes for forming a stereo image of the target area. The apparatus also includes a Lidar system including at least one laser configured to direct an optical beam to the target area and an optical detection system configured to receive a portion of the optical beam from the target area and establish a distance to the target area based on the received portion.

Provided herein are a measurement device and an operation method thereof. The measurement device senses a distance variation between the measurement device and an object using a built-in proximity sensor and accordingly determines whether to turn on or turn off a track sensing module and an optical ranging module such that the measurement device provides intelligent selection to achieve energy saving without being interfered with by other sensors being turned on.