207results about "Movable markers" patented technology

A target (100) for use in surveying applications is provided. The target comprises a plurality of light sources (106) arranged around a longitudinal axis (A) of a base element (108) of the target. The plurality of light sources is configured to emit light radially. The target further comprises a control unit (214). The control unit is configured to control an intensity of the light (440a, 440b) emitted by the plurality of light sources based on a distance (d1, d2) between the target and a surveying instrument (120) aimed towards the target.

To solve the problems of prior arts, that is, to provide a surveying jig capable of being more easily installed on the tip of an anchor bolt than the prior arts.SOLUTION: A surveying jig of the present invention is a jig that is installed at the tip of an anchor bolt embedded in concrete, and comprises an anchor-side member and a marker-side member. The anchor-side member has an insertion hole penetrating in an axial direction, and the marker-side member has a housing hole that is surrounded by a lower surface of a pedestal body and an inner surface of a wall body. When the anchor-side member is attached to the marker-side member by housing an outer insert in the housing hole, and the anchor bolt is inserted into the insertion hole until the tip of the anchor bolt abuts against a magnet, the marker-side member is fixed to the anchor bolt.SELECTED DRAWING: Figure 1

To provide a reflector and a reference point surveying method having a simple structure and capable of detecting the incident direction of a light beam to the reflector without changing a measuring reference point regardless of the incident direction of the light beam.SOLUTION: The direction detector includes an image-forming lens (4) and a light-receiving sensor (5), and is configured such that principal rays 11a, 11b, 11c, and 11d that are incident so as to pass through the center of the ball lens and are transmitted through the ball lens are reflected by an outer face of the spherical crown and an inner face of the spherical crown or a face of the ball lens and are then incident on the direction detector. The direction detector is configured to detect the incident direction of the main light beam with respect to the main optical axis based on a light receiving position 5d of the light receiving sensor when the main light beam is incident on the imaging lens and is imaged on the light receiving sensor by the imaging lens.SELECTED DRAWING: Figure 1

To enable a detachable target jig for an anchor to be attached / detached to / from an anchor simply and quickly and to be reused, as a target used in photography and measurement processing for identifying a position of the anchor driven into a concrete structure.SOLUTION: A detachable target jig 1 for an anchor integrally comprises: jig body parts 1A, 1B each comprising a target mounting part 11 for detachably mounting a deflection-deformable target piece 2; and anchor clip parts 1A1, 1B1 that are detachably fitted to a shaft part 31 of an anchor 3 through elastic deformation. The target mounting part 11 has storage recess parts 1A2a, 1B2a formed by making some of the jig body parts 1A2, 1B2 thin, and flange parts 1A2b, 1B2b that narrow opening edges of the storage recess parts 1A2a, 1B2a. The deflected target piece 2 is detachably fitted into the target mounting part 11 by inserting it into the storage recess parts 1A2a, 1B2a through the inside of the flange parts 1A2b, 1B2b.SELECTED DRAWING: Figure 4

Provided are a movable marking system, a method of controlling a movable marking apparatus, and a computer-readable recording medium. The movable marking system is a movable marking system that includes a movable marking apparatus, and includes: a data receiver, which receives a marking data; a driver, which supplies power to the movable marking apparatus and moves the movable marking apparatus; at least one sensor, which senses a space; a sensing condition setter, which sets a movement path along which the movable marking apparatus moves; and a position detector, which detects a position of the movable marking apparatus by comparing sensing data obtained through the sensor with a reference map data. The reference map data is generated from a drawing corresponding to the space or from a former sensing process, the movable marking apparatus comprises a receiver receiving position signal received from at least one transceiver, and the position detector determines the position of the movable marking apparatus using information obtained from a transceiver and / or a marker installed in the space, thereby improving positioning accuracy of the movable marking apparatus in real-world environments.

The present inventive concept relates to a surveying pole (10) comprising: a pole arrangement (100) extending along a longitudinal axis (106) between a first end (1020) and a second end (1040), the pole arrangement (100) comprising: a first pole section (102) and a second pole section (104) telescopically arranged to provide adjustment of an extension (L, L') of the pole arrangement (100) along the longitudinal axis (106), and a target (108) internally arranged in the pole arrangement (100) at a predetermined distance (R) from the first end (1020); a top unit (110) having a center axis (112), the top unit (110) being arrangeable relative to the pole arrangement (100) for achieving a mounted state in which the top unit (110) is attached to the second end (1040) of the pole arrangement (100) such that the center axis (112) of the top unit (110) is parallel to the longitudinal axis (106) of the pole arrangement (100), and an unmounted state in which the top unit (110) is detached from the pole arrangement (100), the top unit (110) comprising: an electronic distance measurement unit (300) configured to emit a light beam (302) in a direction parallel to the center axis (112) of the top unit (110) for determining a distance to a measurement point, wherein the measurement point coincides with the target (108) of the pole arrangement (100) in the mounted state, and circuitry (310) configured to execute: in the mounted state, a pole length determination function (3112) configured to determine a length of the pole arrangement (100) based on the determined distance to the target (108), and in the unmounted state, a remote point distance determination function (3114) configured to determine a distance to a remote point coinciding with the measurement point.

In a surveying instrument including an instrument height measuring unit configured to make a distance measurement by emitting distance-measuring light to a distance-measuring object below a vertical axis of a surveying instrument main body, and an arithmetic unit configured to calculate a distance to the distance-measuring object by analyzing light being the distance-measuring light that has returned by being reflected by the distance-measuring object, and calculate an instrument height, the instrument height measuring unit is configured to make a distance measurement by irradiating the distance-measuring light toward a predetermined region of the distance-measuring object centered on a point below the vertical axis of the surveying instrument main body, and the arithmetic unit is configured to calculate the instrument height by operating an average value of distance-measurement values in the region. By calculating an average value of results of distance measurements of a predetermined region, the measurement accuracy can be improved.

Certain examples described herein present a method of configuring a headset for display of a building information model (BUM) at a construction site. In one example, the method includes: determining a pose of the headset using a positioning system; obtaining an image of a two-dimensional marker positioned within the construction site; determining a BIM-to-camera transformation between an origin of a coordinate system used by the building information model and an origin of the coordinate system of the camera based on a location of the two-dimensional marker within the image; determining a camera-to-positioning transformation between the origin of the coordinate system used by the camera and an origin of a coordinate system used by the positioning system; and determining a BIM-to-positioning transformation.

This invention discloses a method for improving the orbital accuracy of a lunar probe based on reflective prism constraints. The method first utilizes laser ranging data obtained from a known reflective prism on the lunar surface using an onboard laser altimeter, and constructs an error equation set by combining this data with a dynamic orbital model. Next, a high-resolution camera is used to perform multiple imaging operations on the lunar reflective prism from different orbits and perspectives. Using the bundle adjustment principle, the observed image point coordinates are combined with the dynamic model to construct the error equation set. Finally, laser ranging observations from the reflective prism and multi-temporal photogrammetry observations are used as two different types of geometric constraints to construct a joint adjustment model of multi-source observation data. The high-precision orbital parameters are then calculated using a least-squares algorithm. This invention uses laser ranging data and an optical image database to add new constraints to the estimated orbit, ultimately correcting and further improving the orbital accuracy of the lunar probe.

The present invention discloses a method for generating a dynamic coupling model. The method comprises setting benchmark points and arranging observation piers; transmitting benchmark gravity values ​​to the observation piers; collecting spatial pose change data and three-dimensional coordinate data of markers; obtaining relative gravity joint measurement data through relative gravity joint measurement; calculating the three-dimensional displacement of each observation pier based on the spatial pose change data; fusing the benchmark gravity values, relative gravity joint measurement data, and three-dimensional coordinate data to construct a gravity gradient field tensor model; systematically integrating the three-dimensional displacement, gravity gradient field tensor model, and three-dimensional coordinate data to form a spatial correlation framework; and performing a joint adjustment based on a conditional least squares model to constrain the physical coupling mechanism of displacement and gravity gradient to generate a dynamic coupling model of the interaction between the deformation field and the gravity field. The method achieves the unification of the spatiotemporal benchmarks of displacement and gravity data, eliminates rotation errors and local interference, enhances the reliability of the gravity gradient field, and physically constrains the coupling mechanism of deformation and gravity.

To provide a surveying system, a surveying device, a surveying method or a surveying program with which it is possible to promote appropriate swinging of a pole in surveying for swinging a pole and calculating the position of a measurement point.SOLUTION: This surveying system 1 comprises: a distance measuring unit 102 for measuring a distance to an object 301 to be surveyed, by range-finding light; direction detection units 106, 107 for detecting the emission direction of the range-finding light; a computation unit 101b for acquiring position information regarding the object 301 to be surveyed, on the basis of the distance measured by the distance measuring unit 102 and the emission direction detected by the direction detection units 106, 107; a storage unit 111 for storing offset information R that represents distance information from the object 301 to be surveyed to a measurement point P; and a swing guidance unit 201b for estimating a swing state of the object 301 to be surveyed, on the basis of a plurality of pieces of position information acquired by the computation unit 101b and the offset information, and generating swing guidance information for the object 301 to be surveyed, in accordance with the estimated swing state.SELECTED DRAWING: Figure 1

This invention belongs to the field of UAV mapping target technology, and particularly relates to a UAV aerial photogrammetry ground target, including a base. A frame is mounted on the base via a support mechanism. A central shaft runs through the frame in the front-to-back direction. A display screen and a solar panel are mounted on the central shaft via a right-angle mounting bracket. A conversion mechanism is provided within the frame, which drives the central shaft to rotate, controlling the rotation of the right-angle mounting bracket and switching the positions of the display screen and solar panel. The advantages are: this invention can effectively perform UAV mapping target work in natural environments for extended periods, has self-powered and self-cleaning functions, and features a long service life and strong environmental adaptability.

The invention relates to a ground station system (38a-c) for georeferencing aerial images, in particular for calibrating and / or surveying drone photogrammetry data, of an area (10a-c), such as, for example, a construction site, an archaeological find and / or excavation site or an infrastructure facility, with a plurality of control point units (12a-c, 14a-c, 16a-c) that can be arranged distributed over the area (10a-c), wherein each of the control point units (12a-c, 14a-c, 16a-c) has an optical marker (18a-c) on at least one surface that is uniquely identifiable from the air.It is proposed that each of the control point units (12a-c, 14a-c, 16a-c) is associated with a Global Navigation Satellite System (GNSS) module (20) for acquiring its instantaneous geographic position and a Wide Area Network (WWAN) module (28a-c) for at least wirelessly transmitting the acquired instantaneous geographic position, wherein at least one of the control point units (12a-c, 14a-c, 16a-c) is integrated into a functional object (22a-c, 24a-c, 26a-c) that is at least temporarily assigned to the area (10a-c) and performs a main function within the area (10a-c) that is different from georeferencing.

The invention relates to a ground station system (38a-c) for georeferencing aerial images, in particular for calibrating and / or surveying drone photogrammetry data, of an area (10a-c), such as, for example, a construction site, an archaeological find and / or excavation site or an infrastructure facility, with a plurality of control point units (12a-c, 14a-c, 16a-c) that can be arranged distributed over the area (10a-c), wherein each of the control point units (12a-c, 14a-c, 16a-c) has an optical marker (18a-c) on at least one surface that is uniquely identifiable from the air. It is proposed that each of the control point units (12a-c, 14a-c, 16a-c) is associated with a Global Navigation Satellite System (GNSS) module (20) for acquiring its instantaneous geographic position and a Wide Area Network (WWAN) module (28a-c) for at least wirelessly transmitting the acquired instantaneous geographic position, wherein at least one of the control point units (12a-c, 14a-c, 16a-c) is integrated into a functional object (22a-c, 24a-c, 26a-c) that is at least temporarily assigned to the area (10a-c) and performs a main function within the area (10a-c) that is different from georeferencing.

A surveying prism can include a housing, optical features, and a bumper. The optical features can be located on a radial surface of the housing azimuthally offset from one another by equal arcs. The bumper can cover the optical features. The bumper can include flat edges and position indicators. The flat edges can correspond to the optical features. Each flat edge can have a different first center point of first center points that is approximately at the same azimuthal angle with respect to the surveying prism as a corresponding second center point of a corresponding optical feature of the optical features. The position indicators can correspond to the optical features, and each position indicator can be positioned at a central point of a different flat edge of the flat edges.

The utility model relates to an intelligent construction point cloud acquisition device fused and registered with a BIM model, and the device comprises a vehicle body which comprises a bearing platform; the positioning piece is mounted on the bearing table; the collecting assembly comprises a conveying groove, a pushing assembly, a pressing assembly and a plurality of marking columns, the conveying groove is formed in the side face of the bearing table, an outlet in one end of the conveying groove is open, the multiple marking columns are suitable for being arranged in the conveying groove, and the pushing assembly pushes the marking columns towards the outlet of the conveying groove and pushes the marking columns out of the conveying groove; the pressing assembly is installed on the bearing table, and the driving end of the pressing assembly is located at an outlet of the conveying groove and used for pressing down the marking column pushed out of the conveying groove. Wherein the marking columns are pushed out in sequence along with the movement of the vehicle body to a specified point position, and the marking columns are pressed and inserted to a specified position by the lower pressing piece. The marking columns are sequentially arranged at the different construction point positions through positioning and moving of the vehicle body, so that the construction point positions are automatically marked with high precision.

To provide a method that enables easy investigation of a road condition at the time of starting repair work when repairing a road.SOLUTION: The method includes: a coordinate acquisition step of acquiring three-dimensional coordinates of a plurality of feature points; an imaging step of capturing a plurality of captured images by a camera 3 such that each of the plurality of feature points is included in at least two captured images; and an ortho image creation step of creating an ortho image having a ground pixel size of 5 millimeters or less on the basis of the three-dimensional coordinates of the feature points acquired by the coordinate acquisition step and the plurality of captured images captured by the imaging step.SELECTED DRAWING: Figure 5

The utility model relates to the technical field of pore-forming detection rods, in particular to a pore-forming detection rod with depth marking and calibration functions, which comprises a rod body, a marking ruler is mounted on the side surface of the rod body, a rope is connected to the top end of the rod body, a mounting plate is mounted on the side surface of the rod body, and a placement groove is formed in the top surface of the mounting plate. A pointer plate is mounted at the position, close to one side, of the inner wall of the bottom end of the containing groove, a through hole is formed in the position, close to the other side, of the inner wall of the bottom end of the containing groove, and a left side plate and a right side plate are mounted at the top end of the mounting plate. Through the arrangement of parts such as a mounting plate, a placement groove, a pointer plate, a through hole, a left side plate, a right side plate, a motor, a rotating shaft, a calibration cable, a conical block, a mounting ring and a telescopic supporting rod, the problem that an existing pore-forming detection rod only has the structure of a rod body, so that the pore-forming detection rod does not have the functions of depth marking and calibration; and therefore, the hole-forming detection rod is poorer in practical operation.

Provided is an apparatus for measuring the position and azimuth of a work machine (40), including a specified-point position calculation unit and an azimuth calculation unit. Based on the position of an index mark attached to a work mechanism (44) of the work machine (40) and posture information on the posture of the work mechanism (44), the specified-point position calculation unit calculates a specified-point position, which is the position of a specified point on the work mechanism (44), in a fixed control cycle. Only when a measurement permission condition is satisfied, the azimuth calculation unit calculates the azimuth of the machine body (42) of the work machine (40) based on a previous specified-point position, which is the specified-point position calculated last time by the specified-point position calculation unit, and a current time specified-point position, which is the specified-point position calculated this time. The measurement permission condition includes that current azimuth information corresponding to the current specified-point position is different from previous azimuth information corresponding to the previous specified-point position.

The utility model discloses a ground marking device for resource planning, and belongs to the technical field of ground marking devices. Comprising an electric trolley and a rotating disc, the rotating disc is arranged outside the electric trolley, a supporting plate is installed at the top end of the rotating disc, a stirring barrel is installed at the top end of the supporting plate, a Y-axis moving support is installed at the top end of the supporting plate on one side of the stirring barrel, and a Z-axis moving support is arranged outside the Y-axis moving support; and a control panel is mounted at the top end of the electric trolley. According to the utility model, the ground marking device can conveniently move and adjust the position for marking at multiple positions, conveniently rotate the angle for marking, enlarge the marking range of the ground marking device, conveniently mark on a slope surface, improve the marking convenience of the rotation angle of the ground marking device, and improve the working efficiency of the ground marking device. And the raw material mixing uniformity of the ground marking device is improved.

By enabling the determination of the size of the figures drawn on the actual surveying rod from images of the rod itself, the automation of surveying work can be achieved. [Solution] The surveying rod 11 has a figure drawn on it that shows three or more points whose positional relationship is known, and size information that indicates the size of that figure. The figure drawn on the surveying rod 11 is a polygon colored in different colors, and it shows the intersection of the boundary lines of two adjacent regions colored in different colors. The positional relationship of these intersections is known. Since the size information of the figure drawn on the surveying rod 11 is captured in an image of the surveying rod 11, the size of the figure drawn on the actual surveying rod 11 as seen in the image can be determined from that image.

To solve the problems in which conventional arts get involved, that is, to provide a surveying-purpose device that uses an external corner or internal corner not only as a surveying reference point, but also as a level reference point (a bench mark), and to provide a surveying method that uses the surveying-purpose device.SOLUTION: A surveying-purpose device according to the present invention comprises: a ruler plate that is made of an L-shaped plate in a plan view; and a supporting cylinder that is installed in a top surface of the ruler plate. The supporting cylinder is arranged almost vertically to the ruler plate. Then, an inner side L-shaped line or an exterior side L-shaped line abuts against an almost vertically intersecting exterior corner or internal corner, and in turn the ruler plate is almost horizontally arranged. In a state with the ruler plate almost horizontally arranged, when inserting a pin of a surveying-purpose reflection prism into an insertion hole, the surveying-purpose reflection prism is arranged almost vertically, and a lower end of the pin abuts against the top surface.SELECTED DRAWING: Figure 1

To provide a surveying system and a surveying method that allow measurement data obtained by measuring a measurement target to be visually recognized as measurement data with a position other than a position of a measurement device as a reference, from a position other than the position of the measurement device.SOLUTION: A surveying system 1 includes a measurement device 2 and a mobile terminal 3. The measurement device 2 includes a measuring instrument 4 that measures a measurement target, an AR marker 7 having a known relationship with a measurement reference position of the measuring instrument 4, a control unit 5, and a communication unit 6. The control unit 5 is configured to convert measurement data acquired by the measuring instrument 4 into AR-marker-referenced measurement data. The communication unit 6 transmits the converted measurement data to the mobile terminal 3. The mobile terminal 3 includes a camera 11 that captures an image of the measurement target so as to include the AR marker 7, a terminal communication unit 13 that receives the converted measurement data, a terminal control unit 12, and a display unit 14. The terminal control unit 12 recognizes the AR marker 7 from the image, creates an AR image on the basis of a recognition result of the AR marker 7 and the converted measurement data, and displays the AR image on the display unit 14.SELECTED DRAWING: Figure 1

An apparatus and a corresponding method for determining mapping data relating to a feature of a parcel region. The apparatus comprises: a measurement apparatus comprising: a plurality of inertial sensors for acquiring motion data representing a position of the measurement apparatus based on a linear acceleration and an angular velocity of the measurement apparatus; a distance measurer for acquiring, during use, distance data representative of a distance from the measuring device to the ground of the parcel area; and a measurement device computer processor to: obtain first motion data from the plurality of inertial sensors while the measurement device is stationary at a first mapping position associated with the feature; obtaining second motion data from the plurality of inertial sensors, the second motion data indicating that the measurement device is moving from the first mapping position to a second mapping position; when the measuring device is moving from the first surveying and mapping position to the second surveying and mapping position, controlling the distance measurer to acquire distance data once or multiple times based on the second motion data; the apparatus further comprises a processing device comprising a processing device computer processor for: determining X, Y, and Z positions of the first surveying position based on the first motion data; determining X, Y and Z positions of the measuring equipment based on the second motion data; determining a distance from the measuring device to the ground based on the acquired distance data; and generating mapping data for the feature based on the determined X, Y and Z positions of the first mapping position, the determined X, Y and Z positions of the measurement device, and the determined distance.

This reflector comprises: a deflection optical member (5) that is provided on an incident optical axis (3) of measurement light and reflects the measurement light; and a retroreflector (6) that retroreflects the measurement light on a reflection optical axis (3') of the deflection optical member. The reflector is configured to form a virtual image of the optical center of the retroreflector on an extension of the incident optical axis.