This disclosure, and the exemplary embodiments provided herein, include a system and method for encoding information in a relatively dense and time-varying manner. In exemplary embodiments, a reflector or retroreflector is wrapped around a rotating member, such as a cylinder, (also referred to as “Rotational LIDAR Barcodes”), which encodes relatively longer data messages, as compared to a static barcode, which can be detected by a LIDAR system and decoded from every direction, i.e. bearings angles of 0-360 degrees, even when partially obstructed.

A system for enhanced object detection and identification is disclosed. The system provides new capabilities in object detection and identification. The system can be used with a variety of vehicles, such as autonomous cars, human-driven motor vehicles, robots, drones, and aircraft and can detect objects in adverse operating conditions such as heavy rain, snow, or sun glare. Enhanced object detection can also be used to detect objects in the environment around a stationary object. Additionally, such systems can rapidly identify and classify objects based on the encoded information in the emitted or reflected signals from the materials.

A system for enhanced object detection and identification is disclosed. The system provides new capabilities in object detection and identification. The system can be used with a variety of vehicles, such as autonomous cars, human-driven motor vehicles, robots, drones, and aircraft and can detect objects in adverse operating conditions such as heavy rain, snow, or sun glare. Enhanced object detection can also be used to detect objects in the environment around a stationary object. Additionally, such systems can rapidly identify and classify objects based on the encoded information in the emitted or reflected signals from the materials.

A flying body, which prevents others from measuring precise position of the flying body and allows friends to measure precise position of the flying body, is provided. The flying body (10) is provided with a reflector (100), a controller (300) and an anti-reflection section (200). The reflector (100) is provided with a reflective surface, arranged in an aperture, which reflects a radiated laser. The controller (300) generates a control signal on a basis of a state of the flying body. The anti-reflection section (200) prevents a reflection of the laser by the reflective surface on a basis of the control signal.

A calibration device and method of calculating a global multi-degree of freedom (MDF) pose of a camera affixed to a structure is disclosed. The method may comprise: determining, via a computer of a calibration device, a calibration device MDF pose with respect to a global coordinate system corresponding to the structure; receiving, from an image system including the camera, a camera MDF pose with respect to the calibration device, wherein a computer of the image system determines the camera MDF pose based on an image captured by the camera including at least a calibration board affixed to the calibration device; calculating the global MDF pose based on the calibration device MDF pose and the MDF pose; and transmitting the global MDF pose to the image system such that a computer of the image system can use the global MDF pose for calibration purposes.

A calibration device and method of calculating a global multi-degree of freedom (MDF) pose of a camera affixed to a structure is disclosed. The method may comprise: determining, via a computer of a calibration device, a calibration device MDF pose with respect to a global coordinate system corresponding to the structure; receiving, from an image system including the camera, a camera MDF pose with respect to the calibration device, wherein a computer of the image system determines the camera MDF pose based on an image captured by the camera including at least a calibration board affixed to the calibration device; calculating the global MDF pose based on the calibration device MDF pose and the MDF pose; and transmitting the global MDF pose to the image system such that a computer of the image system can use the global MDF pose for calibration purposes.

The present invention describes an electronic personal protective device (2) comprising a rechargeable battery (3), a transceiver (4) configured to send and receive wireless signals (FR1, FR2) with predetermined power and sensitivity as a function of the action radius (r) which is to be monitored, a memory unit (5) containing a unique recognition code (ID1, ID2), an actuator (6) configured to warn the person wearing said electronic device (2), a processing unit (20) configured to: generate and send to said transceiver (4) a frame (FR1, FR2) at programmable time intervals (Tadv), receive and process frames (FR1, FR2) sent from other electronic personal protective devices (2) placed within said action radius (r), generate an alarm signal (S_AL), if a second electronic device (2) is located within said action radius (r), send said alarm signal (S_AL) to said actuator (6). The invention further describes a corresponding method and computer program.

The present invention describes an electronic personal protective device (2) comprising a rechargeable battery (3), a transceiver (4) configured to send and receive wireless signals (FR1, FR2) with predetermined power and sensitivity as a function of the action radius (r) which is to be monitored, a memory unit (5) containing a unique recognition code (ID1, ID2), an actuator (6) configured to warn the person wearing said electronic device (2), a processing unit (20) configured to: generate and send to said transceiver (4) a frame (FR1, FR2) at programmable time intervals (Tadv), receive and process frames (FR1, FR2) sent from other electronic personal protective devices (2) placed within said action radius (r), generate an alarm signal (S_AL), if a second electronic device (2) is located within said action radius (r), send said alarm signal (S_AL) to said actuator (6). The invention further describes a corresponding method and computer program.

There are provided methods and systems for producing a wave-beam having substantially constant lateral extent over a desired range of distances, and interrogation and response system and methods utilizing the same. The method for producing a wave-beam having substantially constant lateral extent includes generating a plurality of at least partially incoherent constituent wave-beams having different divergences and directing the plurality constituent wave-beams to propagate along substantially parallel propagation axes such that the constituent wave-beams at least partially overlap and superpose to form a combined wave-beam. The divergences and intensities of the constituent wave-beams are selected such that the combined wave-beam has a desired substantially constant extent over a desired range of distances along said propagation axes.

There are provided methods and systems for producing a wave-beam having substantially constant lateral extent over a desired range of distances, and interrogation and response system and methods utilizing the same. The method for producing a wave-beam having substantially constant lateral extent includes generating a plurality of at least partially incoherent constituent wave-beams having different divergences and directing the plurality constituent wave-beams to propagate along substantially parallel propagation axes such that the constituent wave-beams at least partially overlap and superpose to form a combined wave-beam. The divergences and intensities of the constituent wave-beams are selected such that the combined wave-beam has a desired substantially constant extent over a desired range of distances along said propagation axes.