Kabushiki Kaisha Topcon

Topcon Corporation

Tokyo Kogaku Kikai Kabushiki Kaisha

Tokyo Kogaku Kikai K. K.

Other

Tokyo Kabushiki Kikai Kabushiki Kaisha

Fumio Ohtomo

Kaoru Kumagai

Kazuki Osaragi

Jun-ichi Kodaira

Hitoshi Otani

Tetsuji Anai

Kunihiro Hayashi

Masahiro Ohishi

Satoshi Hirano

Masayuki Momiuchi

Hiroshi Koizumi

Kazuaki Kimura

Hiroyuki Nishizawa

Ken-ichiro Yoshino

Ikuo Ishinabe

Yoshiaki Goto

Kenichiro Yoshino

Richard W Davidson

Takashi Yokokura

Isao Minegishi

Kenichirou Yoshino

Susumu Saito

Nobuyuki Nishita

Hideyuki Matsumoto

Nobuo Hori

Hiroo Sugai

Hitoshi Ohtani

Makoto Omori

Susumu Takahashi

Hiroyuki Kawashima

Akihiko Sekine

Yoshikatsu Tokuda

Shinji Kawashima

Fumitomo Kondo

Tsuneo Sasaki

Kiichi Furuya

Vernon J Brabec

Takahiro Inoue

Hisashi Isozaki

Satoshi Yanobe

Hiroshi Tamaki

Akio Kimura

Yohei Ogawa

Shunji Murai

Toshikazu Adegawa

Masayuki Nishi

Haruhiko Kobayashi

Hiroyuki Frusho

Masaru Isono

Shinichi Nakamura

Koji Sato

Tadayuki Ito

Akihiro Arai

Hiroyuki Aoki

Toshifumi Mihashi

Masaaki Yabe

Shinji Yamaguchi

Takaaki Yamazaki

Masahiro Oishi

Kazuo Nunokawa

Yoshihiro Takahashi

Fumihiko Kamizono

Yasutaka Katayama

Junichi Kodaira

Minoru Chiba

Takumi Uchiyama

Kiwami Horiguchi

Masae Matsumoto

Naoki Shoji

Naoto Miki

Mitsuharu Yamada

Terukazu Nagashima

Noriyasu Kiryuu

Ritsuo Sakimura

Yoshiyuki Enomoto

Masaaki Kobayashi

Hideki Hatanaka

Junki Kaneko

Takayuki Fujioka

Makoto Ohmori

Mizuo Matsui

Kazushige Koshikawa

Jun Abe

Yoshio Horikawa

Shinichi Hayase

Tsuneo Sasaki, Deceased

Youhei Ogawa

Yoshikatu Tokuda

Toshio Hamada

Fumitoshi Kasahara

Takeshige Saito

Ryo-uji Musashi

Ray O'Connor

Hayashi Kunihiro

Richard J Jackson

Eduardo F Falcon

Clyde C Goad

Kazuhiro Shida

Ken-Ichiro Yoshino

The inclination sensor includes a gimbal mechanism rotatably supported around a first shaft and a second shaft, a first motor, a second motor, an acceleration sensor disposed in the gimbal mechanism with an origin point of coordinate axes being coincident with a point of intersection of a shaft center of the first shaft and a shaft center of the second shaft, and a control unit that simultaneously rotates the first shaft and the second shaft to continuously rotate the acceleration sensor around the first shaft and the second shaft and applies frequency analysis to the output values from the acceleration sensor to arithmetically determine the inclination angle with respect to the horizontal direction.

Inclination sensor and data acquisition device

A tilt detecting unit has a tilt sensor and is rotatably supported by an inner frame through a second shaft orthogonal to a first shaft, a first encoder is provided on the first shaft, a second encoder is provided on the second shaft, motors are provided on the respective shafts, an arithmetic processing module drives the respective motors so that the tilt sensor detects the horizontality based on a signal issued by the tilt sensor, calculates a tilt of the outer frame based on the outputs from the first and second encoders when the tilt sensor detects the horizontality, reverses the tilt detecting unit 180° at least once based on the outputs from the respective encoders in a stationary state of the tilt detecting device, and performs the calibration of the tilt sensor based on the detection signals output from the tilt sensor before and after the reversal.

Tilt detecting device and surveying instrument

A surveying instrument including an optical axis deflector which integrally deflects a distance measuring optical axis and a light receiving optical axis, a narrow-angle image pickup module having an optical axis a part of which is common to the distance measuring optical axis, a distance measurement calculation module and an arithmetic control module, in which the wavelength dispersion compensation prisms which is constituted of a plurality of optical members having the different wavelength characteristics are provided in the part of which is common to the distance measuring optical axis and the narrow-angle image pickup optical axis, the arithmetic control module performs the distance measurement of a measuring point based on a signal of the distance measuring light and a signal of the reflected distance measuring light, and acquires a narrow-angle image in which the dispersion has been compensated by the wavelength dispersion compensation prisms.

Surveying instrument having wavelength dispersion compensation prisms and surveying instrument system

A surveying instrument comprises a distance measuring unit configured to measure a distance to an object to be measured, an optical axis deflector configured to deflect a distance measuring light, a measuring direction image pickup module configured to acquires an observation image and an arithmetic control module, wherein the arithmetic control module is configured to continuously cut out sighting images around a tracking point set in the observation image, to set a first cutout sighting image as a reference sighting image, to calculate a movement amount of the sighting image with respect to the reference sighting image by an image matching of the reference sighting image and the sighting image and to control the optical axis deflector based on a calculation result in such a manner that the tracking point is positioned at a center of the sighting image.

Surveying instrument

There is provided a surveying instrument including a distance measuring light projecting module, a light receiving module, an optical axis deflector provided in a common portion of a distance measuring optical axis and a light receiving optical axis, a projecting direction detector which detects an optical axis deflection angle and a deflecting direction, a narrow angle image pickup module for a narrow angle of view, a distance measurement arithmetic module, and an arithmetic control module, wherein the arithmetic control module controls the optical axis deflector and the distance measurement arithmetic module, the distance measurement arithmetic module performs a distance measurement of a measuring point based on a transmission signal of a measuring light and a reception signal of a measuring light, the narrow angle image pickup module acquires a narrow angle image with reference to the distance measuring optical axis, a sighting is performed every different objects, and an acquisition of the narrow angle image and a three-dimensional measurement are performed.

Surveying instrument and surveying instrument system

A surveying system comprises an object to be measured having a retro-reflector and a surveying instrument main body for emitting a distance measuring light and performing a measurement based on a reflected distance measuring light, wherein the surveying instrument main body comprises a distance measuring light projecting module, a photodetector, a measuring unit, an optical axis deflector which has a reference optical axis and deflects a distance measuring optical axis, a projecting direction detecting module which detects a deflection angle and a deflection angle direction of the distance measuring optical axis, and an arithmetic control module, and wherein the arithmetic control module is configured to control the optical axis deflector, to perform a two-dimensional scan with the distance measuring light, to detect the deflection angle direction of the distance measuring light at a moment of detecting a photodetecting signal by the projecting direction detecting module, and to move an approximate center of the two-dimensional scan in the detected deflection angle direction.

Surveying system

A surveying instrument include a monopod installed on a reference point and a surveying instrument main body provided on the monopod, wherein the surveying instrument main body includes a measuring direction image pickup module which acquires first image including an object, a distance measuring unit which measures a distance to the object, a measuring direction detecting module which detects a measuring direction, a time detector which generates a reference time signal and an arithmetic control module, the arithmetic control module associates a distance measurement result with the reference time signal, associates a measuring direction with the reference time signal, and associates the first image with the reference time signal, associates an image change, the measuring direction, and a distance measurement result with each other based on the reference time signal, calculates a measuring direction in the distance measurement and determines a position of a measurement part of the object.

A distance measuring light projecting module comprises a light receiving module for receiving a reflected distance measuring light and a background light, a distance measuring unit for receiving the reflected distance measuring light and performs a distance measurement, an image pickup module for receiving the background light and for acquiring a background image, an optical axis deflector for integrally deflecting an optical axis of the distance measuring light and an optical axis of the background light, and an arithmetic control module for controlling the optical axis deflector, wherein the optical axis deflector has a rotary driving module for rotating a pair of disk prisms individually, and a projecting direction detecting module for detecting a rotation angle of each of the disk prisms.

A surveying device body includes a distance measuring section to measure a distance to the measurement target, an optical axis deflector that deflects distance measuring light with respect to a reference optical axis, a measurement direction imaging section that obtains an observation image, and an attitude detector that detects an incline of the surveying device body. A computation controller displays a portion of the observation image on the display unit, computes a direction angle of the distance measuring optical axis on the basis of a detection result of the attitude detector and a deflection angle of the distance measuring optical axis with respect to the reference optical axis, and measures the measurement target on the basis of the direction angle and a distance measurement result of the distance measuring section using a reference point as a reference.

Surveying device

A surveying instrument include a surveying instrument including a surveying instrument main body, a measuring direction image pickup module for acquiring a first image, a distance measuring unit for measuring a distance to the object, a projecting direction detecting module for detecting a projecting direction of the distance measuring light, a time detector for generating a signal of a reference time, a downward image pickup module for acquiring a second image, an attitude detector for detecting a tilt of the surveying instrument main body and an arithmetic control module, wherein the arithmetic control module is configured to detect a change between the first images or the second images, determine a measuring point of the object with respect to the vertical lower image based on the change between the images and the detection results of the distance measuring unit and the projecting direction detecting module and the reference time.

A surveying instrument comprises a monopod installed at a reference point, a surveying instrument main body provided at the monopod and having an attitude detector, wherein the surveying instrument main body carries out an image pickup and a scanning of an object to be measured at a pre-movement and a post-movement respectively, obtains at least three cross points of a locus of a scan pattern of the pre-movement and the post-movement, and calculates three-dimensional coordinates of an installation point of the post-movement based on three-dimensional coordinates of the cross points measured from the reference point, a measurement result of the cross points measured from the installation point of the post-movement and a detection result of the attitude detector.

A laser measuring instrument comprises a light emitter, a driver, a scanning unit, a light receiving signal processing module for detecting a reciprocating time per pulsed light of a distance measuring light and performing a distance measurement, and a timing generating circuit for issuing a timing signal, wherein the timing generating circuit is configured to issue a timing signal for making the light emitter pulse-emit in a short cycle and a timing signal for pausing a light emission, the driver is configured to make the light emitter pulse-emit according to the timing signals, a light emission time interval in the short cycle is set such that a measuring point is multiply irradiated with the pulsed light by two or more times within a time when the pulsed light passes the measuring point, and the light receiving signal processing module is configured to integrate acquired light receiving signals and to carry out the distance measurement.

Laser measuring method and laser measuring instrument

A surveying instrument comprises a monopod installed on a reference point, a surveying instrument main body having a reference optical axis and an operation panel, wherein the surveying instrument main body has a distance measuring unit, an arithmetic control module, a measuring direction image pickup module which acquires a first image, and an attitude detector which detects tilts of two axes of the surveying instrument main body to the horizontal, and wherein the operation panel has a display unit, a calculating module, and as operation module, and the at least either one of the arithmetic control module and the calculating module calculates a tilt angle of the reference optical axis to the horizontal and a tilt angle of the monopod to the vertical, and the at least either one measures a horizontal distance and a vertical distance to the object to be measured with reference to the reference point.

A surveying instrument comprises a distance measuring light projecting module, a light receiving module, an optical axis deflector which integrally deflects a distance measuring optical axis and a light receiving optical axis, a wide-angle image pickup module, a projecting direction detecting module configured to detect an optical axis deflection angle and a deflecting direction, a narrow-angle image pickup module, a distance measurement calculating module and an arithmetic control module, wherein the arithmetic control module is configured to control the optical axis deflector and the distance measurement calculating module, wherein the distance measurement calculating module is configured to perform a distance measurement of a measuring point based on a light emission timing of a distance measuring light and a light reception timing of a reflected distance measuring light, and wherein the narrow-angle image pickup module is configured to acquire a narrow-angle image with the distance measuring optical axis as an image center.

There is provided a surveying instrument including a tripod which is installed on an installation surface and a surveying instrument main body which is provided on the tripod and laterally rotatable around a longitudinal axis, wherein the tripod includes a reference leg has a known relationship between a lower end of the reference leg and a machine reference point which is a machine center of the surveying instrument main body, and two auxiliary legs, the reference leg is installed in such a manner that a lower end of the reference leg coincides with a reference point, wherein the surveying instrument main body calculates a position of the machine reference point with respect to the reference point based on the positional relationship between the lower end of the reference leg and the machine reference point.

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Saitama, Japan

Fumio Ohtomo