Topcon Corporation

Kabushiki Kaisha Topcon

Riken Corporation

Satoshi Yanobe

Kaoru Kumagai

Nobuyuki Nishita

Fumio Ohtomo

Yasufumi Fukuma

Toshio Yamada

Hideyuki Matsumoto

Akira Yajima

Shigenori Nagano

Yoshie Otake

Yosuke Okudaira

Goro Iwasaki

Yasuo Wakabayashi

Hanako Aikoh

Satoru Ishiguro

Eiji Takeuchi

Tetsutaro Kouji

Masato Takamura

Masaki Kamiki

Shinji Yamaguchi

Jun-ichi Kodaira

Kazuki Osaragi

Takahiro Inoue

Jumpei Kochi

Atsushi Doji

Homare Momiyama

A non-destructive inspection system includes a non-destructive inspection apparatus and a management apparatus. The non-destructive inspection apparatus includes: a neutron emission unit capable of emitting a neutron beam; a gamma-ray detector capable of detecting a gamma ray; an apparatus case covering the neutron emission unit and the gamma-ray detector and including an opening; an outer shutter configured to open and close the opening; dose monitors each provided on the apparatus case and configured to detect a radioactive dose; an apparatus communication unit capable of transmitting apparatus information including the detected radioactive dose to the management apparatus and capable of receiving inspection permission information from the management apparatus; and an apparatus control unit configured to open the outer shutter and allows emission of the neutron beam from the neutron emission unit upon acquisition of the inspection permission information.

Non-destructive inspection device and non- destructive inspection system

A non-destructive inspection system includes: a neutron emission unit capable of emitting neutrons having a first neutron dose; a neutron detection unit capable of detecting a second neutron dose of neutrons scattered inside an inspection object A by the emission of the neutrons from the neutron emission unit; a gamma-ray detection unit capable of detecting a gamma dose of gamma rays released from the inspection object A by the emission of the neutrons from the neutron emission unit; and an analysis unit configured to calculate a content of a predetermined substance based on the gamma dose and correct the content of the predetermined substance based on the first neutron dose and the second neutron dose.

Nondestructive inspection system

Provided is a work management system enabling real-time inspection by simultaneously performing work and measurements. The work management system includes a tool including a communication unit and a trigger switch, a camera unit including a communication unit, a camera capable of identifying 3D camera coordinates from an image, a posture detecting device configured to acquire camera posture information, a control unit, and a prism, and a surveying instrument including a communication unit, a tracking unit, a distance-measuring unit, an angle-measuring unit, and a control unit, wherein upon detection that the trigger switch has been used, the camera unit collects camera posture information by the posture detecting device, a tool image by the camera, position coordinates of the prism measured by the surveying instrument, and orientation information of the camera unit viewed from the surveying instrument, and obtains and stores position coordinates of a tip end position of the tool.

Work management system and work management method

The data set receiving unitof the information processing apparatusof an aspect example receives a data set that includes at least BIM data. The route setting processorsets a route, which is arranged inside and/or outside a virtual building represented by the BIM data, based on the data set received. The virtual image set generating processorgenerates a virtual image set of the virtual building along the route, based on the received data set and the set route. The inference model creating processorcreates an inference model by applying machine learning with training data that includes at least the generated virtual image set to a neural network. The inference model created is used to identify data of a building material from data acquired by measuring a building.

Photogrammetry of building using machine learning based inference

A management system of the present invention includes a design database storing member identification information, member coordinates, and member shapes of construction members constituting a construction object, a management member selecting unit configured to select a management member to be managed among the construction members stored in the design database, a related member selecting unit configured to select a related member adjacent to the management member from the design database, a boundary information creating unit configured to select an adjacent portion between the management member and the related member, and with respect to the adjacent portion, as boundary information, associate identification information, adjacent portion coordinates, an adjacent portion shape of the adjacent portion, member identification information of the management member, and member identification information of the related member with each other, and a comparison result database configured to store information associated by the boundary information creating unit.

Data management system, management method, and storage medium

A rotary encoder includes: a rotary disk with an angle code; a light source; a detector reading the angle code; and a processing unit acquiring a reading value. The light source includes at least two light-emitting elements spaced from each other. Every time the rotary disk is rotated by a predetermined angle, where an arbitrary angle from a rotation angle &#x3b8; within a reading range on the detector is provided as &#x3c6;, the processing unit acquires reading values f(&#x3b8;+&#x3c6;) and f(&#x3b8;) with a first light-emitting element and a reading value f(&#x3b8;+&#x3c6;) with a second light-emitting element, to calculate a reading value error due to deflection at an angle &#x3b8;+&#x3c6; based on the difference between the reading values f(&#x3b8;+&#x3c6;) and f(&#x3b8;+&#x3c6;), to obtain a difference g(&#x3b8;,&#x3c6;) between the reading values f(&#x3b8;+&#x3c6;) and f(&#x3b8;) such that the error is reflected, and to self-calibrate based on a change in the difference g(&#x3b8;,&#x3c6;).

Rotary encoder

A surveying system comprising a rover having an illuminating lamp for emitting an illumination light, a second azimuth indicator for detecting an azimuth angle of an optical axis of the illumination light, a surveying instrument comprises a surveying instrument main body and a rotary driving unit capable of rotating the surveying instrument main body in at least a left-and-right direction, wherein the surveying instrument main body comprises a first azimuth indicator for detecting an azimuth angle of a reference optical axis, and as arithmetic control module, and wherein the arithmetic control module is configured to calculate the azimuth angle of the reference optical axis which is in parallel or approximately parallel with the optical axis of the illumination light based on the azimuth angle of the optical axis of the illumination light received from the rover and the azimuth angle of the reference optical axis.

Surveying system

When a camera and a surveying device are connected by a synchro cable, and a photographing condition obtaining unit obtains a photographing start time of the camera, a survey control unit makes a survey time measurement unit start time measurement. After the camera and the surveying device are disconnected, the survey control unit starts a survey by a predetermined surveying period &#x394;T when tracking of the prism starts. Based on the time measurement by the survey time measurement unit, the survey control unit associates the survey result with the photographing position of each image taken by the camera to generate the data for photogrammetry.

Surveying device and survey system

Provided is a method for controlling an ultrasonic motor to reduce deterioration of automatic tracking performance, and a surveying instrument for the same. The present invention provides a method for controlling an ultrasonic motor in a surveying instrument including a rotary shaft, an ultrasonic motor that drives a rotary shaft, a tracking unit that includes a light emitting unit and a light receiving unit and tracks a target, and a clock signal oscillation unit that outputs a clock signal, wherein at the time of low-speed rotation of the ultrasonic motor, based on the clock signal, a ratio of an acceleration period in which a drive signal is applied and a deceleration period in which the drive signal is stopped in a drive cycle of the drive signal of the ultrasonic motor is set, and the light emitting unit is made to emit light in the deceleration period.

Method for controlling ultrasonic motor and surveying instrument for the same

To eliminate influences of unnecessary reflected light other than a liquid surface in a liquid surface reflection type inclination sensor. In order to attain the object described above, an inclination sensor includes a liquid that forms a liquid surface, an illumination section, a barcode pattern to be illuminated by the illumination section, an optical system that projects the barcode pattern on the liquid surface, a light receiving element that detects the barcode pattern, a storage section that stores a detection image when the liquid surface is removed from an optical path of the optical system, and an arithmetic section that calculates an inclination angle by subtracting the detection image when the liquid surface is removed from a detection image when the liquid surface is present on the optical path of the optical system.

Inclination sensor

A measurement device and measurement method are provided which are capable of measuring the inclination of a measurement target object surface both with a simple configuration and at high speed. The measurement device includes: a rangefinding light emitting section; a rangefinding unit configured to receive reflected rangefinding light; an optical axis deflection section provided on an optical path common to rangefinding light and reflected rangefinding light, and configured to deflect optical axes thereof; a motor configured to cause the optical axis deflection section to rotate; an emission direction detection unit configured to detect a deflection angle and deflection direction resulting from the optical axis deflection section; and a computation controller that measures the inclination of a measurement target object surface with respect to the emission optical axis on the basis of acquired coordinate data on the measurement target object surface.

Measurement device and measurement method

The invention provides a laser scanner, which comprises a light projecting unit for irradiating a distance measuring light, a light receiving unit for receiving a reflected distance measuring light, a distance measuring unit for performing a distance measurement based on a light receiving signal, a rotary deflecting unit for performing a rotary irradiation of the distance measuring light, and an arithmetic control unit, wherein the arithmetic control unit has a light receiving intensity judging component and a threshold value setting component, a light receiving intensity which is obtained by scanning the distance measuring light is inputted in advance to the threshold value setting component from the light receiving intensity judging component, the threshold value setting component sets a threshold value for detecting light receiving corresponding to the light receiving intensity, and the arithmetic control unit acquires a light receiving signal based on the threshold value and performs a distance measurement.

Laser scanner

The invention provides a tilt angle measuring device, which comprises a discoid container for including a liquid forming a free liquid surface, a light emitting source for allowing a detection light to enter the free liquid surface, a photodetector for receiving the detection light reflected on the free liquid surface and a signal processing unit for detecting a tilt of the free liquid surface based on a detection signal from the photodetector, wherein the signal processing unit sets a detection light storage time of the photodetector so that an error incidence rate of the detection signal is a predetermined value.

Tilt angle measuring device

The invention provides an angle detecting device, which comprises absolute encoders provided on a rotation member which rotates at a constant speed, a clock signal generating component, a counter circuit, an angle calculating component, and a trigger signal generating component, wherein an angle trigger signal is inputted to the absolute encoders and the counter circuit at a predetermined time interval, the absolute encoders input rotation angles for each angle trigger signal to the angle calculating component, the counter circuit outputs the number of clock counts to the angle calculating component from the moment when a rotation angle measuring trigger signal is inputted by inputting the rotation angle measuring trigger signal for detecting the rotation angle of the rotation member to the counter circuit, and wherein the angle calculating component detects the rotation angle of the rotation member based on the rotation angles from the absolute encoders and on the number of the clock counts.

Growing community of inventors

Tokyo, Japan

Satoshi Yanobe