Patent classifications
G01S3/781
Methods and systems for detecting shading for solar trackers
A solar tracker system including a tracker apparatus including a plurality of solar modules, each of the solar modules being spatially configured to face in a normal manner in an on sun position in an incident direction of electromagnetic radiation derived from the sun, wherein the solar modules include a plurality of PV strings, and a tracker controller. The tracker controller includes a processor, a memory, a power supply configured to provide power to the tracker controller, a plurality of power inputs configured to receive a plurality of currents from the plurality of PV strings, a current sensing unit configured to individually monitor the plurality of currents, a DC-DC power converter configured to receive the plurality of power inputs powered from the plurality of PV strings to supply power to the power supply, and a motor controller, wherein the tracker controller is configured to track the sun position.
Methods and systems for detecting shading for solar trackers
A solar tracker system including a tracker apparatus including a plurality of solar modules, each of the solar modules being spatially configured to face in a normal manner in an on sun position in an incident direction of electromagnetic radiation derived from the sun, wherein the solar modules include a plurality of PV strings, and a tracker controller. The tracker controller includes a processor, a memory, a power supply configured to provide power to the tracker controller, a plurality of power inputs configured to receive a plurality of currents from the plurality of PV strings, a current sensing unit configured to individually monitor the plurality of currents, a DC-DC power converter configured to receive the plurality of power inputs powered from the plurality of PV strings to supply power to the power supply, and a motor controller, wherein the tracker controller is configured to track the sun position.
Compound eye laser tracking device
The Compound Eye Laser Illumination Seeker (CELIS) is a tracking system used to guide items to point at a laser-illuminated target, with the illumination being either pulsed or modulated at either a specific rate or within a range of rates. The CELIS, comprising a multiaperture compound receiver optics (MACRO) to collect the signal, a set of light guides to combine the received light into light representing individual angular sectors and redirect it to detectors whose output represents the illumination signal in that quadrant, a spectral filter, an angle filter, the set of detectors, and processing electronics. The output is an electronic signal indicating the angular difference between the pointing direction of the signal and the pointing direction of the tracking device.
PASSIVE ALTIMETER SYSTEM FOR A PLATFORM AND METHOD THEREOF
A passive altimeter system comprising an angle between a point and a central boresight that is determined from distortion parameters of a lens in an infrared sensor in a countermeasure system on a mobile platform wherein the infrared sensor captures a first image for determining a distance between the platform and one of (i) a ground surface and (ii) a target, and the passive altimeter system further comprising a dimensional distance between two points in the first image that is determined from a secondary source external to the countermeasure system, and a processor to triangulate the distance between the platform and one of (i) the ground surface and (ii) the target based on the dimensional distance and the angle.
PASSIVE ALTIMETER SYSTEM FOR A PLATFORM AND METHOD THEREOF
A passive altimeter system comprising an angle between a point and a central boresight that is determined from distortion parameters of a lens in an infrared sensor in a countermeasure system on a mobile platform wherein the infrared sensor captures a first image for determining a distance between the platform and one of (i) a ground surface and (ii) a target, and the passive altimeter system further comprising a dimensional distance between two points in the first image that is determined from a secondary source external to the countermeasure system, and a processor to triangulate the distance between the platform and one of (i) the ground surface and (ii) the target based on the dimensional distance and the angle.
SEMANTIC MAPPING FOR LOW-POWER AUGMENTED REALITY USING DYNAMIC VISION SENSOR
A system and method for a master platform includes receiving first pose data associated with an image sensor of a first device, and a first semantic map generated by the first device, the first semantic map including a simplified object representation in a coordinate space of the first device. The master platform also receives second pose data associated with an image sensor of a second device, and a second semantic map generated by the second device, the second semantic map including a simplified object representation in a coordinate space of the second device. A shared simplified object representation common to the first and semantic maps is identified. The master platform further combines the first semantic and second semantic maps based on the first and second pose data. The first pose data, first semantic map, second pose data, and second semantic map are associated with a common time interval.
METHODS AND APPARATUS FOR TRACKING MOVING OBJECTS USING SYMMETRIC PHASE CHANGE DETECTION
An optical receiver including an optical resonator and a steering mechanism coupled to the at least one optical resonator is disclosed. The optical resonator is configured to receive a phase modulated input optical signal and to produce an intensity modulated output optical signal. An intensity modulation of the output optical signal is representative of the phase modulation of the input optical signal. The optical receiver further comprises an optical-electrical converter that detects the intensity modulated output optical signal and converts the intensity modulated output optical signal to an electrical signal, and signal processor that receives the electrical signal, performs symmetric phase change measurements based on the electrical signal, and provides a control signal to actuate the steering mechanism to steer the optical resonator to maintain normal incidence of the phase modulated input optical signal on a surface of at least one optical resonator.
SMART TRACK A SYSTEM FOR TRACKING AND/OR CONTROLLING CHANGE OF LOCATION BASED EVENTS
The subject invention is a system of apparatus interconnected by communication with a computer system. The primary detect transceiver detects entities involved in a change of location event. The detection data is analyzed to provide current location of entities. That data may also be analyzed to create/confirm a digital identity of each entity. The current location is compared their prior location in relation to a designated event area and outputting a location and vector. Identity, location and vector are compared to a rule data set to determine whether the event should proceed under normal rules or modified rules. The output of the computer system includes a representation of the event region, event area, entities and current event operation condition to a human perceivable interface which may also accept commands altering the output. That output is further transmitted to event enunciators which in turn signal to the event entities whether to proceed under normal or modified rules.
SMART TRACK A SYSTEM FOR TRACKING AND/OR CONTROLLING CHANGE OF LOCATION BASED EVENTS
The subject invention is a system of apparatus interconnected by communication with a computer system. The primary detect transceiver detects entities involved in a change of location event. The detection data is analyzed to provide current location of entities. That data may also be analyzed to create/confirm a digital identity of each entity. The current location is compared their prior location in relation to a designated event area and outputting a location and vector. Identity, location and vector are compared to a rule data set to determine whether the event should proceed under normal rules or modified rules. The output of the computer system includes a representation of the event region, event area, entities and current event operation condition to a human perceivable interface which may also accept commands altering the output. That output is further transmitted to event enunciators which in turn signal to the event entities whether to proceed under normal or modified rules.
Semantic mapping for low-power augmented reality using dynamic vision sensor
An apparatus includes a dynamic vision sensor (DVS) configured to output an asynchronous stream of sensor event data, a CMOS image sensor configured to output frames of image data, an inertial measurement unit (IMU), a processor and a memory. The memory contains instructions, which when executed by the processor, cause the apparatus to generate a semantic segmentation of a time-stamped frame, which is based on one or more of an output of the CMOS image sensor, or a synthesized event frame based on an output from the DVS and an output from the IMU over a time interval. The semantic segmentation includes a semantic label associated with a region of the time-stamped frame. When executed, the instructions further cause the apparatus to determine, based on the semantic segmentation, a simplified object representation in a coordinate space, and update a stable semantic map based on the simplified object representation.