27results about "Boundary marks" patented technology

The present disclosure relates to a device for calibrating a laser level, including a base platform configured to support the laser level that is to be mounted at a first position of the base platform, a laser detector arranged at a second position of the base platform and configured to receive a laser, and an optical path extension device arranged at a third position between the laser level and the laser detector and configured to receive the laser emitted by the laser level and project the laser to the laser detector after the laser is adjusted by the optical path extension device. With the optical path extension device, a physical distance between the laser level and the laser detector can be optically extended.

The application discloses a method for designing and calibrating a detection site of an unmanned aerial vehicle based on high-precision positioning, comprising the following steps: S1, setting a main control point and a standard point; S2, performing static relative measurement and free station measurement, and outputting a reference coordinate data set; S3, introducing a Boolean sand model, calculating accurate three-dimensional coordinate values of the main control point, evaluating residual errors, and generating reference data of the main control point; S4, performing multi-station redundant observation on the standard point, and outputting accurate coordinate data of the standard point; S5, constructing an improved Hamilton Monte Carlo-based Bayesian inference model, introducing a Gaussian mixture prior guide factor, calculating a posterior probability distribution and an extended uncertainty, and generating a calibration data report; and S6, performing independent measurement and comparative analysis, and outputting a final calibration result. The application realizes accurate measurement of point coordinates of a detection site and scientific evaluation of uncertainty, and effectively improves the reliability and robustness of value traceability.

A method including: recording a first image of a first field region; automatically treating a plant within the first region in-situ based on the first image; automatically verifying the plant treatment with a second image of the first region; and automatically treating a second region concurrently with treatment verification.

The invention discloses a benchmark protection device, and relates to the technical field of benchmark protection, the benchmark protection device comprises a shell assembly, the shell assembly comprises a protection shell, the lower end of the protection shell is provided with a protection shell gasket, the upper end of the protection shell is provided with a cover plate, and a cover plate gasket is arranged between the protection shell and the cover plate; the opening and closing assembly comprises a connecting plate, a first rotating rod, a second rotating rod, a spring, a clamping piece, a pressing piece and a limiting piece; the box staff fixing assembly comprises a benchmark, a ball bearing and a box staff rotating bin. The beneficial effects of the invention are that through the cooperation of the cover plate and the opening and closing assembly, the protection shell is closed and opened, under the action of the clamping piece, the cover plate is ensured to be closed tightly, and the cover plate is kept open stably without affecting the measurement under the action of the internal force of the opening and closing assembly during opening; the benchmark is protected through the protective shell, the benchmark is prevented from being corroded and damaged by rainwater, dust and the like, durability of the benchmark can be better guaranteed, the telemeter rod fixing assembly is matched, a telemeter rod can be better fixed during measurement, manpower is saved, and meanwhile the measurement accuracy can be improved.

To provide a boundary marker stake that includes a convergence part formed at a tip portion of the stake so as to enable cutting, allows the length of the stake to be shortened by cutting the stake along the convergence part, and is usable even when a soil layer is shallow.SOLUTION: A boundary marker stake includes: a leg body 1 embedded in the ground: and a head body 2 exposed above the ground to indicate a boundary point or a survey point, the leg body having a convergence part 6 formed at a predetermined region so that the outer shape gradually decreases toward a forward side, the convergence part 6 having a reinforcing rib 7 to provide a structure that becomes easy to break in a specific direction alone, the length of the stake being made adjustable by cutting the leg body along the convergence part 6.SELECTED DRAWING: Figure 1

Disclosed is an aircraft structural element (100) configured to be assemblable into an aircraft structure, the aircraft structural element (100) comprising an external surface (105) having an integrally formed photogrammetry target (182). A photogrammetry system (180), aircraft assembly system (10) and method of assembly based on the same are also disclosed.

An aircraft structural element configured to be assemblable into an aircraft structure, the aircraft structural element including an external surface having an integrally formed photogrammetry target. The aircraft structural element, the integrally formed photogrammetry target and the external surface are formed of a common material composition and are a single piece structure. A photogrammetry system, aircraft assembly system and method of assembly of the aircraft structural element into the aircraft structure.

An aircraft structural element 100, configured to be assembled into an aircraft structure, comprising an external surface 105 having at least one integrally formed photogrammetry target 182. A photogrammetry system comprises the aircraft structural element, a photogrammetry imaging device 184, and a photogrammetry processor 186. The imaging device and processor determine a position or orientation of the target. A sensor 142, 144 may be disposed on or within the element to sense a parameter during assembly and output a signal indicative of the parameter. The target may comprise a protruding and / or recessed portion which may be adjacent one another on the external surface. A method of assembling the aircraft structure comprises determining a position or orientation of the target using the photogrammetry system, determining a position or orientation of the element based on the position or orientation of the target, and performing assembly based on the position or orientation of the element.

Two-dimensional targets, such as AprilTags, are used as control points. AprilTags can be used as cost effective alternatives to traditional prism targets without losing accuracy. AprilTags can be placed precisely around a construction site as "permanent" survey control points, like positioning reflector targets. A robotic total station, equipped with a camera sensor, can image the two-dimensional targets to efficiently resection itself.

A method including: recording a first image of a first field region; automatically treating a plant within the first region in-situ based on the first image: automatically verifying the plant treatment with a second image of the first region; and automatically treating a second region concurrently with treatment verification.

Provided is a surveying instrument that reduces the burden of a centering work on a worker. A surveying instrument (1) capable of irradiating a spotlight (SL) as visible light for centering toward a position below a vertical axis of a surveying instrument main body (12) is configured such that that an irradiation shape of the spotlight (SL) is a toric shape. When visible light for centering which passes through a center point (O) of the surveying instrument (1) and is projected on a position right below the surveying instrument (1) is projected in a toric shape having a hole opened at a center like a donut shape, both of an inner circle and an outer circle can be recognized, and an outer shape of a measuring object on which a target point is set can also be used for alignment with the target point, so that many guides are provided, and it is easier for a worker to align the toric shape with the target point than a point shape, so that the burden of a centering work on the worker is reduced.

To provide a surveying instrument that reduces a burden of centering work on a worker.SOLUTION: In a surveying instrument (1) capable of irradiating with, spotlight (SL) as visible light for centering toward a position below a vertical axis of the surveying instrument main body (12), the spotlight (SL) is configured that an irradiation shape is an annular shape. When visible light for centering, which passes through a center point (O) of the surveying instrument 1 and is projected on a position right below the surveying instrument (1), is projected in an annular shape having a hole opened at a center like a doughnut, both of an inner circle and an outer circle can be recognized, an outer shape of a measuring object having a target point can be used for target point alignment, there are many marks, and it is easier for a worker to align the annular shape with the target point than a point shape, so that a burden of centering work on the worker is reduced.SELECTED DRAWING: Figure 1

A surveying instrument capable of irradiating a spotlight as visible light for centering toward a position below a vertical axis of a surveying instrument main body is configured such that that an irradiation shape of the spotlight is a toric shape. When visible light for centering which passes through a center point of the surveying instrument and is projected on a position right below the surveying instrument is projected in a toric shape having a hole opened at a center like a donut shape, both of an inner circle and an outer circle can be recognized, so that many guides are provided, and it is easier for a worker to align the toric shape with the target point than a point shape, so that the burden of a centering work on the worker is reduced.

A setting-out method, a measurement system (500), and a computer readable medium. The setting-out method is used for the measurement system (500). The measurement system (500) comprises a navigation module (1, 501), a laser ranging module (2, 502), and a centering rod (6, 503). The navigation module (1, 501) comprises an inertial measuring unit and a GNSS positioning unit. The setting-out method comprises: acquiring projection coordinates of a position vector of an antenna phase center in a first coordinate system by means of a GNSS positioning unit; acquiring distance information between a laser emission point and a laser irradiation point; on the basis of the projection coordinates and the distance information, calculating projection coordinates of the laser emission point in the first coordinate system and projection coordinates of the laser irradiation point in the first coordinate system; further calculating a corresponding setting-out error; and adjusting the centering rod (6, 503) on the basis of the setting-out error.

A lofting method, a multifunctional measurement apparatus and a computer-readable medium. The lofting method is used for a multifunctional measurement apparatus (500). The multifunctional measurement apparatus (500) includes a navigation module (1, 501) and a laser ranging module (2, 502), wherein the navigation module (1, 501) includes an inertial measurement unit. The lofting method includes: calculating plane projection coordinates of a laser irradiation point in a first coordinate system (S101); acquiring plane projection coordinates of a point to be lofted in the first coordinate system (S102); calculating a lofting error in a second coordinate system on the basis of the obtained coordinates (S103); and adjusting the position of the laser irradiation point on the basis of the lofting error until the laser irradiation point coincides with the point to be lofted within a lofting error range (S104). In the lofting method, a laser ranging module (2, 502) is used instead of a centering rod, so that a user can carry a multifunctional measurement apparatus and operate same conveniently, and it is only necessary to move a laser irradiation point in situ to implement long-distance lofting.

A painting assembly for a distance measuring wheel includes: a main body; a connecting device disposed on the main body and configured to connect the paining assembly to an arm member of the distance measuring wheel; a paint can fixing device disposed on the main body and configured to fix a paint can installed to the painting assembly; a communication device configured to receive a control signal for controlling a driving device; and the driving device connected to the main body and configured to: in response to the control signal, control a paint spraying state of the paint can.

To provide a marker which is easily manufactured and has high accuracy.SOLUTION: The relative position calculation method is a relative position calculation method using a marker 1 including a base material layer 10, a first layer 20 laminated on one surface of the base material layer 10 and observed in a first color, and a second layer 30 partially laminated on the first layer 20 and observed in a second color different from the first color and partially concealing the first layer 20, the first layer 20 being observable in a region where the second layer 30 is not laminated, the second layer 30 being formed of a resist material, the relative position calculation method including a step of photographing the marker attached to an object to be measured by a camera, and a step of calculating a relative positional relationship between the camera and the marker by a control unit.SELECTED DRAWING: Figure 1

A system for monitoring survey reflectors arranged at a plurality of locations on an object, having: a camera, including: - one or more light sources arranged to illuminate a field in space corresponding to at least 10% of a field of view of the camera, preferably the whole field of view; - an image sensor receiving light beams from reflections of the beam by the survey reflectors and providing data; - a body with an optical entry system, the image sensor located on a first side and the light source on a second side of the body; and a processing unit processing the data. The processing unit is configured to determine locations of the survey reflectors from the image sensor data and detect movement of the survey reflectors based on a comparison of the determined locations with previously determined locations.

To provide a technique capable of printing unevenness-level information on an inspection surface in an intuitively and visually recognizable manner.SOLUTION: An unevenness level inspection device 1 is provided with a target T whose distance from an inspection surface is known, a traveling unit 21 for traveling on the inspection surface, a first marker 23 for marking information onto the inspection surface, and a control unit 10 for controlling the first marker 23. The control unit 10 calculates the height of the inspection surface at a measurement position of the target T based on three-dimensional position coordinates of the target T input every time the unevenness level inspection device 1 travels a predetermined distance, a first marker 23 is controlled so as to mark unevenness level information indicating the difference between the height of the inspection surface and the reference height at a corresponding position of the inspection surface, and the unevenness level information is marked in different colors according to the level of the magnitude of the difference between the height of the inspection surface and the reference height.SELECTED DRAWING: Figure 2

Marking metadata during layout can be time intensive. A robotic device is used to mark out points at a construction site, and an augmented-reality device uses the points for alignment and provides metadata about the points to a user of the augmented-reality device as the user looks at the points.

Location systems and methods for locating paint and other markings on a surface are described. More specifically, but not exclusively, the disclosure relates to smart paint stick devices and methods for locating and marking buried utility lines or other buried objects. One system for locating a buried object may include a buried object locator and paint stick. The locator may include a tracking component for detecting a location of a buried object. The paint stick may be configured to cause a paint container to dispense paint at a first position associated with the location of the buried object. The paint stick may include a position determination component for transmitting one or more range vector signals that are detected by the tracking component. Sensors may be used to determine when paint is dispensed from a paint container, and to determine a color of the paint or a type of a marking.

An unevenness level inspecting device includes a target T at a known distance from a to-be-inspected surface, a traveling unit for traveling on the to-be-inspected surface, a first marker for marking information on the to-be-inspected surface, and a control unit configured to control the first marker, and the control unit calculates a height of the to-be-inspected surface at a measurement position of the target T based on three-dimensional position coordinates of the target input each time the unevenness level inspecting device travels a predetermined distance, and controls the first marker so as to mark unevenness level information indicating a difference between the height of the to-be-inspected surface and a reference height on a corresponding position on the to-be-inspected surface, and the unevenness level information is marked in a color that differs depending on a magnitude of the difference between the height of the to-be-inspected surface and the reference height.

To provide a marker with high accuracy, the marker easy to manufacture.SOLUTION: A relative position calculation method uses a marker 1 including: a base material layer 10; a first layer 20 laminated on one side of the base material layer 10 and observed as in a first color; and a second layer 30 laminated partially on the first layer 20, observed as in a second color different from the first color, and partially concealing the first layer 20. The first layer 20 is observable in an area not laminated with the second layer 30. The second layer 30 includes a resist material. The relative position calculation method includes: a step of imaging the marker adhered onto a measuring object by a camera; and a step of calculating a relative positional relation between the camera and the marker by the control part.SELECTED DRAWING: Figure 1

An aircraft structural element configured to be assemblable into an aircraft structure is disclosed. The aircraft structural element includes an outer surface having an integrally formed photogrammetric target. Photogrammetric systems, aircraft assembly systems, and assembly methods based thereon are also disclosed.