An acquisition unit acquires laser measurement data every time a laser measurement is performed. Based on the acquired laser measurement data, a first detection unit detects an attention angle, which is an irradiation angle corresponding to a measurement distance not included in a standard distance range. A second detection unit detects a warning angle, which is an irradiation angle matching the attention angle for a time longer than an allowable time. A warning unit issues a warning when the warning angle is detected.

An acquisition unit acquires laser measurement data every time a laser measurement is performed. Based on the acquired laser measurement data, a first detection unit detects an attention angle, which is an irradiation angle corresponding to a measurement distance not included in a standard distance range. A second detection unit detects a warning angle, which is an irradiation angle matching the attention angle for a time longer than an allowable time. A warning unit issues a warning when the warning angle is detected.

The present invention discloses an erecting system and a binocular telescope for laser ranging. The erecting system comprises a roof half penta prism, a beam splitting prism and an isosceles prism. The beam splitting prism is positioned between the roof half penta prism and the isosceles prism. The beam splitting prism is formed by bonding two right-angle prisms. A beam splitting film is arranged on a bonding surface of the two right-angle prisms. The present invention not only has simple structure and small occupation volume, but also is convenient in use, can realize the binocular observation and targeting at a measured object, and can display the distance of the measured object in real time in the field of view while observing the object.

The present invention discloses an erecting system and a binocular telescope for laser ranging. The erecting system comprises a roof half penta prism, a beam splitting prism and an isosceles prism. The beam splitting prism is positioned between the roof half penta prism and the isosceles prism. The beam splitting prism is formed by bonding two right-angle prisms. A beam splitting film is arranged on a bonding surface of the two right-angle prisms. The present invention not only has simple structure and small occupation volume, but also is convenient in use, can realize the binocular observation and targeting at a measured object, and can display the distance of the measured object in real time in the field of view while observing the object.

A method is provided that involves mounting a transmit block and a receive block in a LIDAR device to provide a relative position between the transmit block and the receive block. The method also involves locating a camera at a given position at which the camera can image light beams emitted by the transmit block and can image the receive block. The method also involves obtaining, using the camera, a first image indicative of light source positions of one or more light sources in the transmit block and a second image indicative of detector positions of one or more detectors in the receive block. The method also involves determining at least one offset based on the first image and the second image. The method also involves adjusting the relative position between the transmit block and the receive block based at least in part on the at least one offset.

A method is provided that involves mounting a transmit block and a receive block in a LIDAR device to provide a relative position between the transmit block and the receive block. The method also involves locating a camera at a given position at which the camera can image light beams emitted by the transmit block and can image the receive block. The method also involves obtaining, using the camera, a first image indicative of light source positions of one or more light sources in the transmit block and a second image indicative of detector positions of one or more detectors in the receive block. The method also involves determining at least one offset based on the first image and the second image. The method also involves adjusting the relative position between the transmit block and the receive block based at least in part on the at least one offset.

A visualization system using mixed reality provides an extended view to the pilot or other crew of an aircraft. The extended view enables the user to visualize obstructed objects projected onto the real world scene viewed by the pilot using an optical the see-through display (OSTD) thus providing the user with greater situational awareness. A LIDAR point cloud model of the environment around the aircraft is generated from two or more laser scanning devices providing a 360 degree panoramic view. The combined point cloud model is aligned with the pilot's real world view based on the pilot's pose and projected onto the OSTD as an overlay so that the pilot sees the combined point cloud model in relation to the real world as seen by the pilot. One aspect of the invention is that the raw sensor data from the LIDAR devices is displayed on the actual real-world scene as a point cloud without any further image processing to enhance the user's perception.

A visualization system using mixed reality provides an extended view to the pilot or other crew of an aircraft. The extended view enables the user to visualize obstructed objects projected onto the real world scene viewed by the pilot using an optical the see-through display (OSTD) thus providing the user with greater situational awareness. A LIDAR point cloud model of the environment around the aircraft is generated from two or more laser scanning devices providing a 360 degree panoramic view. The combined point cloud model is aligned with the pilot's real world view based on the pilot's pose and projected onto the OSTD as an overlay so that the pilot sees the combined point cloud model in relation to the real world as seen by the pilot. One aspect of the invention is that the raw sensor data from the LIDAR devices is displayed on the actual real-world scene as a point cloud without any further image processing to enhance the user's perception.

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 change 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.

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 change 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.