Topcon Corporation

Kabushiki Kaisha Topcon

Nobuyuki Nishita

Kaoru Kumagai

Jumpei Kochi

Fumio Ohtomo

You Sasaki

Toshio Yamada

Yasushi Tanaka

Satoshi Yanobe

Takeshi Ishida

Yasuhito Haijima

Goro Iwasaki

Mitsuru Ogawa

Hiroyuki Nakabe

Takeshi Sasaki

Kazuki Osaragi

Tetsuji Anai

Takashi Takahashi

Satoshi Hirano

Tatsuya Kojima

Koji Onishi

Noriyasu Kiryuu

Atsushi Doji

Kenichiro Yoshino

Nobuyuki Fukaya

Junki Kaneko

Hajime Shinozaki

Hiroyuki Ikegami

Yasuo Terashima

Saki Horita

Yoshiyuki Daibo

Ryosuke Jinnouchi

Kunpei Komagamine

Provided is a reference point indicating apparatus comprising at least two link plates, a slide slit formed in each link plate, an indicator configured to be slidable along each slide slit and to be provided at an intersection of a center line of each slide slit, and at least three leg portions configured to be provided on the same circumference centered on the indicator, wherein the indicator is configured to be located on an intersection of a perpendicular bisector of each straight line connecting centers of leg portions adjacent to each other, the leg portions are configured to be contactable with an objectby sliding the indicator, the indicator is configured to indicate a reference point of the object in a state where each leg portion is in contact with the object.

Reference point indicating apparatus

Provided is a surveying instrument including a surveying instrument main body, in which the surveying instrument main body includes a distance measuring module configured to project the distance measuring light toward an object and to perform the distance measurement, an optical axis deflector configured to at least uniaxially perform a scan using the distance measuring light, a storage module configured to store a two-dimensional map, and an arithmetic control module, and the arithmetic control module is configured to compare two-dimensional coordinates excluding a height in three-dimensional coordinates of each point acquired along a locus of the distance measuring light with the positional information of the measuring point in said two-dimensional map, and select a point which is in a range of a threshold value set in advance from the positional information of the measuring point in the two-dimensional map as the measuring point.

Surveying instrument and surveying system

To efficiently and accurately detect coordinates positions of a measurement object formed in a linear shape regardless of a distance from a measurement light emitting unit. The provided survey system includes: a distance measuring unit; a deflecting unit for deflecting a direction of measurement light with respect to a reference optical axis and for scanning with the measurement light with respect to a prescribed center in a circumferential direction; and a calculation control unit which controls the distance measuring unit and the deflecting unit, wherein the calculation control unit detects coordinates of intersection points of a measurement object formed in a linear shape and a scan trajectory of the measurement light, and controls a deflection operation of the deflecting unit so that intervals of the intersection points adjacent to each other are constant intervals on the measurement object.

Measurement device and method for controlling measurement device

Provided is a technology to properly display information onto a projection surface without depending on a distance image sensor, and directly project a wide range of information other than a survey setting point onto a construction site. A system includes: a projector including an inclination sensor and at least one reflector; a measuring device configured to measure a position of the reflector; a means having surface information; and a means configured for setting a distance between a projection surface onto which the surface information is projected and the measuring device in a normal direction, wherein the measuring device measures the reflector, and the surface information adjusted according to the distance in the normal direction is projected onto the projection surface.

Information projecting system and information projecting method

A surveying system comprises a target and a measuring instrument. The target has retro-reflection characteristics, the measuring instrument comprises a point measuring unit for irradiating a distance measuring light, for receiving a reflected light and for measuring three-dimensional coordinates of the target based on a light receiving result, a scanner unit for rotatably irradiating a laser beam and for acquiring the point cloud data and an arithmetic control module, wherein the point measuring unit measures the target held in the vicinity of an object, the arithmetic control module calculates a region of a three-dimensional space including the object based on a target measurement result of the point measuring unit, the scanner unit scans a predetermined range including the object and acquires the point cloud data, and the arithmetic control module selects the point cloud data only included in the region of the point cloud data.

Surveying system, point cloud data acquiring method, and point cloud data acquiring program

An external controller specifies the direction of a surveying instrument with respect to a laser marking instrument to calculate a first relative angle as an angle relative to the surveying instrument, calculates a second relative angle as an angle relative to a target line based on design information, and calculates a differential angle between the first relative angle and the second relative angle, thereby rotating a marking laser emitter by the differential angle to project marking laser light onto the target line.

Marking system and marking method

The present management system includes a design database recording member identification information and member shape information on construction members constituting a construction object, a measurement database recording point coordinates of measurement points of the construction object, a member shape information acquiring unit configured to acquire the member shape information of a shape calculation member selected among the construction members recorded in the design database, a member in-range determining unit configured to determine whether coordinates of an object point selected among the measurement points recorded in the measurement database are of the shape calculation member by using the member shape information of the shape calculation member, and an allocated measurement data creating unit configured to record the object point in association with member identification information of the shape calculation member in the measurement database.

Data management system and management method

A surveying system includes a distance measuring unit for performing the distance measurement based on the distance measuring light, an optical axis deflector configured to enable two-dimensionally deflecting the optical axis of the distance measuring light, a projecting direction detecting module for performing the angle measurement of the optical axis of the distance measuring light, and an arithmetic control module performs captures the pole by a scan pattern having a predetermined shape, acquires the point cloud data of at least two positions where the scan pattern crosses the pole, calculates an axis of the pole, calculates a direction vector, performs a linear scan along the direction vector, determines as a measuring point a point where an intersection of the optical axis of the distance measuring light and the direction vector coincides or substantially coincides with a measurement result, and calculates the three-dimensional coordinates of the measuring point.

Surveying instrument, pole having a reflective peripheral surface and surveying system having trigger device for irradiating a laser point along an axis of the pole

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 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 mobile body is controlled even in a place in which a navigation signal is difficult to receive from a navigation satellite. A three-dimensional information processing unit operates a device or a functional part which measures three-dimensional coordinates of a controlled target and operates a laser scanner or a laser scanning part which obtains three-dimensional point cloud data of the target. The unit includes a positioning section that operates the device or the functional part which measures the three-dimensional coordinates, to calculate the three-dimensional coordinates, and includes a scan controlling section that obtains the three-dimensional point cloud data from the laser scanner or the laser scanning part. The unit also includes a range calculator that calculates a movable range of the target from the three-dimensional coordinates and the three-dimensional point cloud data, and includes a controlled target position calculator that calculates a position of the target in the movable range.

Three-dimensional information processing unit, apparatus having three-dimensional information processing unit, unmanned aerial vehicle, informing device, method and program for controlling mobile body using three-dimensional information processing unit

An electro-optical distance meter includes a light source configured to emit light for distance measurement, a detector configured to receive the light and generate a distance measurement signal, a calculator configured to measure the distance from the distance measurement signal, an external optical path configured to guide the light from the light source to a target as measurement light, an internal optical path configured to guide the light from the light source directly to the detector as reference light, and a liquid shutter that can select one of the external and internal optical paths as the optical path through which the light from the light source travels by switching a region of light-blocking liquid.

Electro-optical distance meter

Disclosed is a measurement device including: a distance measurement unit that has a light-generating element, a measurement light emission unit, a light reception unit, and a light reception element and measures a distance to a measurement target on the basis of a light reception signal; a deflection unit that is capable of performing scanning with measurement light; and a control unit that controls the distance measurement unit and the deflection unit. The control unit finds a surface of the measurement target, generates a grid having lines that are arranged at regular intervals on the surface of the measurement target and include a component parallel to a reference direction and a component perpendicular to the reference direction, and controls a deflection behavior of the deflection unit so that a scanning track of the measurement light traces the lines of the grid.

Measurement device

A leveling base includes the leveling base including a pedestal, a leveling plate provided to the pedestal via leveling screws such that the leveling is enabled, and a prism unit including a prism having retroreflective characteristics. The prism unit is provided on the leveling plate, the prism unit retro-reflects a light beam entering from a vertically lower side by the prism, a lower through-hole through which a light beam which enters/is reflected to the prism penetrates is provided in the pedestal, and an attachment/detachment portion which enables the attachment/detachment of a predetermined measuring device is provided on an upper surface of the leveling plate.

Leveling base, surveying instrument and surveying system

An apparatus and method are provided that can identify an array direction of a measurement object formed in a linear shape and efficiently perform a localized measurement of the measurement object. A measurement apparatus includes a distance measuring unit, a deflecting unit which deflects a direction of emission of measurement light with respect to a reference optical axis and which is capable of performing scanning with the measurement light with respect to a prescribed center in a circumferential direction, and a calculation control unit which controls the distance measuring unit and the deflecting unit. The calculation control unit detects coordinates of intersection points of a measurement object formed in a linear shape and a scanned trajectory of the measurement light with the basis of a distance measurement result by the distance measuring unit and the direction of emission that is deflected by the deflecting unit, and identifies an array direction of the measurement object on the basis of the coordinates of a plurality of intersection points.

Growing community of inventors

Tokyo, Japan

Nobuyuki Nishita