G01B11/00

POSITION DETECTION DEVICE AND POSITION DETECTION METHOD
20230019450 · 2023-01-19 · ·

A position detection device includes a transmitter that transmits an optical pulse into an optical transmission line laid along the movement path of a moving body; a detector that detects back-scattered light in the optical transmission line; a data processor that calculates the intensity of the back-scattered light and the generation position of the back-scattered light; a storage in which the processing results of the data processor are saved; a search range derivation circuit that derives a search range for the position of the moving body; a maximum value extraction circuit that extracts the generation position at which the variation of intensity within the search range is at a maximum, and causes the extracted generation position to be saved in the storage; and an output circuit that outputs the extraction result.

APPARATUS FOR ANALYZING A PAYLOAD BEING TRANSPORTED IN A LOAD CARRYING CONTAINER OF A VEHICLE

An apparatus for analyzing a payload being transported in a load carrying container of a vehicle is disclosed. The apparatus includes a camera disposed to successively capture images of vehicles traversing a field of view of the camera. The apparatus also includes at least one processor in communication with the camera, the at least one processor being operably configured to select at least one image from the successively captured images in response to a likelihood of a vehicle and load carrying container being within the field of view in the at least one image, and image data associated with the least one image meeting a suitability criterion for further processing. The further processing includes causing the at least one processor to process the selected image to identify a payload region of interest within the image and to generate a payload analysis within the identified payload region of interest based the image data associated with the least one image.

FIN TIP POSITION MEASUREMENT METHOD, FIN TIP POSITION MEASUREMENT SYSTEM, AND JIG FOR MEASURING FIN TIP POSITION

This fin tip position measurement method comprises: a jig installation step for installing a jig having a flat measurement surface expanded in a circumferential direction and an axial direction to a tip of at least one among a plurality of seal fins that protrude in a radial direction with respect to an axial line, extend in the circumferential direction, and are arranged in a direction in which the axial line extends; a first measurement step for measuring a distance from the axial line to the measurement surface by scanning the measurement surface with a laser beam; and a first calculation step for calculating a distance from the axial line to the tip of the seal fin by adding a radial dimension of the jig to the distance to the measurement surface.

ESTIMATING TRACKING SENSOR PARAMETRIZATION USING KNOWN SURFACE CONSTRAINTS

A sensor system and a method of operating a sensor system including a plurality of sensors tracking a moving object in an area having known bounding surfaces. The apparatus and method calculate a time-specific position of the object based on data and sensor parameters from at least two of the plurality of sensors and determine errors between the calculated time-specific positions calculated. The method and apparatus calculate a minimum system error attributable to the at least two sensors by constraining at least one dimension in the data of the sensor used in the calculated time-specific position of the object associated with the sensor, the constraining based on an object/surface interaction, the minimum system error calculated by solving for modified sensor parameters for each sensor.

Methods and apparatus for initializing object dimensioning systems

Methods, systems, and apparatus for initializing a dimensioning system based on a location of a vehicle carrying an object to be dimensioned. An example method disclosed herein includes receiving, from a location system, location data indicating a location of a vehicle carrying an object; responsive to the location data indicating that the vehicle is approaching an imaging area, initializing, using a logic circuit, a sensor to be primed for capturing data representative of the object; receiving, from a motion detector carried by the vehicle, motion data indicating a speed of the vehicle; and triggering, using the logic circuitry, the sensor to capture data representative of the object at a sample rate based on the speed of the vehicle.

Methods and apparatus for initializing object dimensioning systems

Methods, systems, and apparatus for initializing a dimensioning system based on a location of a vehicle carrying an object to be dimensioned. An example method disclosed herein includes receiving, from a location system, location data indicating a location of a vehicle carrying an object; responsive to the location data indicating that the vehicle is approaching an imaging area, initializing, using a logic circuit, a sensor to be primed for capturing data representative of the object; receiving, from a motion detector carried by the vehicle, motion data indicating a speed of the vehicle; and triggering, using the logic circuitry, the sensor to capture data representative of the object at a sample rate based on the speed of the vehicle.

OPTICAL FIBER EVALUATION DEVICE AND OPTICAL FIBER EVALUATION METHOD

The purpose of the present invention is to provide an optical fiber evaluation equipment and an optical fiber evaluation method that evaluate the center of a cladding of an MCF and a deviation of the center of each core of the MCF from a design value with ease and high accuracy.

The optical fiber evaluation equipment according to the present invention approximates the outside diameter of a cladding by a circle, based on a cross-sectional image of an MCF, and determines the center of the circle as the center of the cladding. In addition, the optical fiber evaluation equipment according to the present invention obtains the center coordinates of cores with an origin at the center of the circle, rotates the cross-sectional image so as to minimize a difference between the center coordinates and design coordinates of each core, and derives the minimum value thereof as the amount of deviation of the center of each core.

GALVANOMETER POSITIONING TOOL AND LASER PRINTER

A galvanometer positioning tool and a laser printer. The galvanometer positioning tool includes: a base provided with a bearing surface and provided with a first concave spherical surface; a bracket placed on the bearing surface, a positioning assembly being provided on a side surface of the bracket facing the bearing surface, a galvanometer being mounted on the bracket; and a reflection center of the galvanometer located on the spherical center of the sphere where the first concave spherical surface is located. The rotation assembly includes a first rotation rod fixedly connected to the second rotation rod and rotatably connected to the base. The second rotation rod is slidably connected to the bracket, and when the first rotation rod rotates relative to the base, the first rotation rod is capable of driving the bracket to rotate with the y-axis of the galvanometer as a rotation axis.

Information processing apparatus, mobile object, control system, and information processing method
11698642 · 2023-07-11 · ·

There is provided an information processing apparatus that includes an information acquisition unit and a control prediction unit. The information acquisition unit acquires information regarding a location and a posture of a first mobile object that includes a sensing device. The control prediction unit predicts control performed with respect to the sensing device, on the basis of the information regarding the location and the posture and map information, the information regarding the location and the posture being acquired by the information acquisition unit.

Machine control device
11698434 · 2023-07-11 · ·

A machine control device includes an imaging control unit that controls an imaging device to capture two images at two different imaging positions; an imaging position information acquiring unit that acquires positional information of two imaging positions; a measurement distance restoring unit that restores a measurement distance of an object based on two images, distance information between two imaging positions, and a parameter of the imaging device, by using a stereo camera method; a measurement precision calculating unit that calculates a measurement precision of the measurement distance of the object based on two images, the distance information between two imaging positions, and the parameter of the imaging device; an area specifying unit that specifies a partial area of the object as a specified area; and a measurement precision determining unit that determines whether the measurement precision of the object satisfies a predetermined precision in the specified area.