Abstract: A breech release for a shotgun includes a push button, a return spring, a spring retainer, a threaded steel rod, and a release slide. the return spring is located between the push button and spring retainer. when the breech release engages with a breech, the breech release bisects an outer breech which hinged an inner breech, holding the breech closed in its default position. When the button is depressed, the button moves the slide out of the inner breech, allowing the breech to open.

Abstract: Apparatuses, systems, and methods are provided for selectively changing the force required to cycle a firearm. In some embodiments, an apparatus is provided with at least two biasing members or springs where one biasing member generates a softer or smaller force than another biasing member. When manually cycling the firearm, the softer biasing member reduces the effort required for a person to cycle the firearm, which reduces the likelihood of injury and allows people with a broader range of physical abilities to cycle the firearm. Then, when the firearm fires a round, the other biasing member provides the greater force required to cycle the firearm in a conventional, semi-automatic or automatic manner.

Abstract: An accountability control system may be configured to provide one or more accountability controls to a payload platform. A payload platform may comprise a device configured to deploy a payload. The accountability controls may comprise one or more of an authentication control, an authorization control, a custody control, or a security analysis control. The accountability controls may restrict or disable access and operations of the payload platform. The accountability controls may also create a chain of custody of operations and events taking place in the accountability control system and the payload platform.

Abstract: A firearm muzzle device comprises an elongate cylindrical body having an outer sidewall defining a chamber. The muzzle has a plurality of spaced-apart baffle walls trans within the chamber and segmenting the chamber into sub-chambers with each baffle element defining a central aperture; and the sidewall defining a plurality of apertures associated with each sub-chamber.

Abstract: A rifle with tapered interfaces has a receiver, a barrel extension connected to the receiver at a first interface, a barrel connected to the barrel extension at a second interface, a barrel nut element connected to the barrel extension at a third interface and to the barrel at a fourth interface, and at least two of the first, second, third, and fourth interfaces being tapered interfaces. The tapered interfaces may be stably tapered such that a wedging effect is generated. The barrel extension may have two tapered interfaces. The barrel extension may have a forward external tapered interface connecting to the barrel nut element and a forward internal tapered interface connecting to the barrel.

Abstract: The present invention relates to an arrangement for an elevation device of a vehicle mounted weapon system. The weapon system comprise a weapon and a feeding chute. Said elevation device is arranged to allow elevation movement of the weapon about an elevation axis. Said elevation is performed in connection to sides of said elevation device about said elevation axis. Said feeding chute is configured to be arranged in connection to one side. Said arrangement comprises an arc-shaped sector bearing device of a bearing configuration for facilitating said elevation. Said bearing device is arranged in connection to a front portion at said one side at a radial distance from said elevation axis so as to provide space for said feeding chute on said one side in connection to said elevation axis. The invention also relates to a vehicle with an arrangement according to the present invention.

Abstract: An electrically powered firearm training device with two main components—a simulator barrel assembly and a simulator magazine assembly. The simulator barrel assembly replaces the firearm's conventional barrel. The simulator magazine assembly replaces the firearm's conventional magazine. The simulator barrel assembly includes an electric motor that controllably moves a traveler using a jackscrew. The traveler cycles the slide in order to simulate the normal operation of the firearm. Electrical power is supplied to the motor from batteries within the simulator magazine.

Abstract: An archery bow is provided including opposing limbs and a riser. The riser can include a riser handle and one or more primary riser elongated elements extending away from the handle to respective limbs. The primary riser elongated elements can be straight, elongated round or other shaped tubes, rods or bars constructed optionally from a composite or other material. Vents can be included in ports of the riser to facilitate escape of air when riser elongated elements are installed in those ports. The riser can include one or more connector lugs disposed between tube portions to facilitate attachment of accessories to the elongated elements. The elongated elements can be bonded, adhered or otherwise fixed to the riser handle, struts, lugs and/or limb pockets, which can be constructed from a metal such as aluminum, titanium or an alloy, and which can handle significant moments and forces transferred via the elongated elements.

Abstract: In some embodiments, an archery bow comprises a riser, a limb member and a support member. The limb member is supported by the riser at a first location. The limb member supports an axle at a second location. The support member is supported by the riser and arranged to support the limb member. The support member contacts the limb member at a contact location. The contact location is oriented between the first location and the second location along the length of the limb member.

Abstract: A toy launcher with a housing and a toy projectile holder thereon. A lever arm extends outside the housing and is connected for pivoting movement relative thereto. A piston and cylinder arrangement is located in the housing, with the piston being resiliently biased toward a first end of the cylinder and being moveable toward a second end thereof to a cocked position by the lever arm being pivoted from a first position to a second position. The cylinder is configured to deliver compressed air to the toy projectile holder. A releasable piston catch holds the piston in the cocked position, and is releasable by the trigger or movement of the lever arm itself such that the piston is driven by the biasing element toward the first end of the cylinder to deliver compressed air to the toy projectile holder for launching. The toy projectile can be a foam dart.

Abstract: A quick disconnect assembly for a sling mount includes a cup having a top portion and a shaft portion connected to the top portion, the cup defining a non-circular through-opening and a recess that extends axially part way into the shaft portion. A post includes a post body extending axially between a first end portion and a second end, the first end portion having one or more protrusions. The post is configured to pass through the through-opening in the cup when the post is in an unlocked position with the protrusion(s) aligned with the through-opening. Rotating the post to a locked position aligns the protrusion(s) with the recess, which can define a plus shape with the through opening. A mounting body on the second end of the post defines or can include an attachment point. A spring is on the post between the mounting body and the cup.

Abstract: A free-floating handguard for mounting onto a firearm includes a tubular polymer-based handguard body allowing passage of a barrel therethrough. The handguard body has a free-floating muzzle end and a clamping end engaging a barrel nut that secures the barrel to the firearm. A downwardly extending lobe is formed on the handguard body proximate the clamping end. The handguard body may further include either or both of a first metal insert and a second metal insert. The first metal insert may be embedded within a bottom wall of the downwardly extending lobe and releasably couple with a mounting feature on a firearm sling. The second metal insert may be embedded within the downwardly extending lobe and defines a threaded bore for receiving a threaded fastener therein. The threaded fastener and second metal insert may clamp the clamping end on the barrel nut to secure the handguard body on the firearm.

Abstract: A latch for securing a buttstock to a receiver of a firearm. The buttstock has at least one compartment configured to receive a spare magazine. The latch comprises a shaft, a lever, a first spring, and a second spring. The shaft moves along a first axis within the buttstock and is biased by the first spring to engage with a recess in a receiver of the firearm. The lever extends along a second axis transverse to the first axis and is positioned between the buttstock and an end of the shaft. The second spring biases the lever toward the buttstock. The lever includes a projection configured to extend through an opening in the buttstock and engage with the spare magazine. The lever is pivotable and is configured to release the magazine when the lever is pivoted in a first direction.

Abstract: A method of providing extra ammunition for a firearm includes providing an ammunition holder with an array of cartridge receiving cavities; increasing cartridge retaining pressure of at least one cavity by compressing a resilient tubular member mounted adjacent to the cavity; and decreasing the cartridge retaining pressure of at least one cavity by decompressing a resilient tubular member mounted adjacent to the cavity.

Abstract: A firearm holster has an outer wall, extending between a muzzle end and a breech end, defining a cavity configured to receive a firearm. A magnet and/or magnet assembly may be included, wherein the magnet is at least partly in the cavity at the muzzle end. The magnet assembly is coupled to the muzzle end and includes a magnet housing coupled to the outer wall and connected to the magnet. The holster may include a protruding wedge on a side panel of the outer wall, wherein the protruding wedge comprises a surface formed at an angle from the longitudinal holster axis. The wedge presses against a user's body to help alleviate the holster sagging. The holster may also have a spacer assembly, a portion of which can be configured to press against a user's body to achieve a desired resting angle of the holster.

Abstract: Firearm bolt assemblies and firearms including the same are described. In embodiments the firearm bolt assemblies are configured to localize compressive forces applied during a transition from an initial position to a firing position to a first cam system on one side of the firearm bolt assembly, and to localize compressive forces applied during a transition from the firing position to the initial position to a second cam system another side of the firearm bolt assembly. Localizing the forces in that manner enables the use of a first cam system that is relatively robust compared to the second cam system.

Abstract: The invention provides devices for active modification of thermal radiation, the devices comprising: (i) a substrate; (ii) one or more polymeric permeable membranes comprising an ionic liquid electrolyte; (iii) one or more electrodes comprising carbon nanotubes deposited onto the surface of at least one of the one or more polymeric membranes; and (iv) a protective encapsulation layer. The invention also provides methods of making such devices.

Abstract: An aircraft wall assembly comprises a panel comprising a ballistic protection layer configured to deform to absorb energy during a projectile impact; and a barrier, wherein the ballistic protection layer comprises a constrained portion, wherein deformation of the ballistic protection layer is constrained at the constrained portion such that the energy absorbed by the constrained portion during the projectile impact is reduced; wherein the barrier is configured to deflect projectile material that passes through the constrained portion of the panel during the projectile impact.

Abstract: A method of forming ballistic glass includes heat forming a polycarbonate panel while the polycarbonate panel is sandwiched between a non-planar glass panel and a mold panel such that the polycarbonate panel is formed to a geometry of the glass panel. The polycarbonate panel is positioned adjacent the glass panel such that a volume of space is defined therebetween, and the volume of space is filled with a flowable resin. The resin is cured to form an intermediate polymer layer between the polycarbonate panel and the glass panel. Ballistic glass may be formed using such methods. Vehicles may include such ballistic glass.

Abstract: Armor plate having a thickness of at least 3 mm and an edge length of at least 20 mm, wherein the armor plate consists of a material made largely of a component selected from the group hard metal, cermet and/or combinations thereof. An armor plate composite comprising at least two layers of armor plates and an armor are provided as well.

Abstract: The present invention relates to a shooting target system comprised of a target body with at least one recording area and at least one target. The target may be a plurality of target styles for practice shooting, competition shooting, firearm zeroing, etc. The body may also have at least one recording area that allows a user to record relevant information related to the environment, firearm, bullet, and optic factors while shooting the target. The system may also include a method of zeroing a firearm shooting the system and a method of target shooting with the system.

Abstract: A warhead includes a gas generator, a plurality of barrels, and a plurality of projectiles. The warhead is configured to selectively actuate the gas generator to generate a pressurized gas that energetically propels the projectiles through and out from the barrels to strike a target.

Abstract: In a bullet cartridge (1) comprising a bullet case (3) defining a caliber diameter (D), a projectile (4) inserted into the neck portion (31) of the bullet case (3), and at least one annular layer (51, 52) of a sealing medium (5) formed from a sealing medium (5) between the bullet case (3) and the projectile (4), it is provided that the annular layer (51, 52) is applied by means of microdosing and/or comprises not more than 1 mg of sealing medium (5) per mm of caliber diameter (D).

Abstract: An ammunition press for manufacturing or reloading ammunition cartridges. The ammunition press includes a slide bearing about which the ram of the ammunition press moves to provide smooth operation of the ammunition press. A configurable spent primer system is provided to enable a user to select how they want to collect spent primers or other debris from the ammunition press. According to a user's preference, the ammunition press can also be customized to provide a cam-over or non-cam-over sensation as the user operates the ammunition press. A light is integrated with the ammunition press for illuminating a shell holder that holds the ammunition shells (sometimes called cases). Components of the ammunition press and associated methods are also disclosed.

Abstract: An automatic measuring apparatus includes an inside-diameter measuring unit that measures the inside diameter of a workpiece, a robot arm part, and a control unit. The inside-diameter measuring unit is installed with the tip side facing upward. A cone-shaped guide cone is provided at the tip of the inside-diameter measuring unit. A workpiece stopper is attached to the outside of the inside-diameter measuring unit. A support surface, which serves as a placing surface on which the workpiece is placed, is supported by a spring, and the inclination and position of the support surface changes to follow a change in the posture and position of the workpiece.

Abstract: An example of a position sensor system includes a magnet arrangement with at least one north pole and one south pole each. A first sensor is spaced apart from the magnet arrangement, wherein the first sensor includes four magnetoresistive elements interconnected in a first full-bridge circuit and sensitive for a first field direction, wherein the two magnetoresistive elements of a first branch of the first full-bridge circuit are arranged at a distance of more than 0.5 mm apart and wherein the two magnetoresistive elements of a second branch of the second full-bridge circuit are arranged at the distance apart. The magnet arrangement and the sensor can be moved relative to each other in a measuring direction.

Abstract: Various embodiments are directed to an angle position sensor system for detecting angle position of a movable member along a defined path comprising: an arc magnet array defining an arc path and configured to be coupled to the movable member. The arc magnet array comprising at least two magnetized pole layers arranged in a spiral pattern and having a tilt angle. A magnetic field sensor disposed proximate to the arc magnet array and movable relative to the magnetic field sensor. The magnetic field sensor configured to generate one or more periodic position signals having N number of periods per arc cycle along the arc path. The magnetic field sensor configured to transmit the one or more periodic position signals to a controller associated with the movable member. The angle position of the movable member is determined based at least in part on the one or more periodic position signals.

Abstract: A method including: scanning a sample over a period of time using an electro-magnetic radiation source, the period of time including a first time period and a second time period, a sample portion of the electro-magnetic radiation source being directed to the sample in a sample arm of an optical interferometric system, and a reference portion of the electro-magnetic radiation source being directed to a reference arm of the optical interferometric system; applying, using a phase modulator, a phase shift comprising a first phase shift and a second phase shift to at least one of the reference portion or the sample portion of the electro-magnetic radiation source, the first phase shift being applied during the first time period and the second phase shift being applied during the second time period, the second phase shift having a difference of 90 degrees from the first phase shift.

Abstract: A driving part of an analysis device includes a cylindrical part on one surface of which a moving mirror is fixed, and a VCM connected at another surface of the cylindrical part and reciprocating the cylindrical part. The VCM includes: a yoke in a cylindrical shape; magnets provided at two ends of the yoke; a fixing part which is in a cylindrical shape enclosing the yoke and fixes, at a bottom surface, the yoke provided with the magnets; a lid part provided with windows and covering an opening surface of the fixing part; a moving part which is arranged between the yoke and the fixing part and on which a coil in a cylindrical shape is fixed; and support parts each including one end fixed to the moving part and another end connected at the another surface of the cylindrical part through the window.

Abstract: A compact modular mount is provided for mechanically compensating for focal distance change on a table due to thermal expansion. The mount includes first and second rings, a plurality of spacers and a plurality of bolts. The second material has a multi-factor higher coefficient of thermal expansion than the first material. Each of the first and second rings has a plurality of holes for receiving the bolts. The spacers each include symmetrically arranged plates hinging to adjacent segments. The bolts maintain angular alignment of the rings.

Abstract: A system for automated surveying of motor vehicles, in particular passenger cars. To provide a system for automated surveying of motor vehicles, in particular passenger cars, which allows for precise surveying of the motor vehicle bodywork and/or the chassis of the motor vehicle, the system has a measuring unit including a scanning unit designed for contactless and/or tactile 3D detection of the geometry of the motor vehicle bodywork and/or surveying of the chassis of the motor vehicle. Furthermore, the measuring unit includes a travel unit for moving and orienting the measuring unit, and a central control unit for automatically controlling the measuring unit and orienting the scanning unit relative to the motor vehicle.

Abstract: A coordinate measuring machine includes two or more linear axes, at least one rotational axis, an optical distance sensor for detecting measuring points on a workpiece to be measured, and a light source. The linear axes and rotational axis are adapted to carry out relative movements between the workpiece to be measured and the optical distance sensor. The light source is adapted to provide source light for the optical distance sensor and includes: an illuminant mounted on a carrier board and a material which emits broadband light under excitation, a laser for exciting the illuminant, a device for actively regulating the light intensity of the source light generated by the light source, a device for actively regulating a temperature within the light source, an optical system, and a light guide coupled to the optical distance sensor. The optical system is adapted to focus the source light into the light guide.

Abstract: A conical workpiece length measurement method is provided. Two laser displacement sensors are symmetrically arranged at opposite sides of a to-be-measured conical workpiece or a tooling loaded with the to-be-measured conical workpiece. Distance X0 from each displacement sensor to a bottom plane of the to-be-measured conical workpiece is calibrated. An elongated base plate is arranged at a tip of the to-be-measured conical workpiece, and the two displacement sensors measure their respective distances to the base plate. The total length of the to-be-measured conical workpiece is calculated as follows: X=X0+(X1+X2)/2, where X1 represents distance from one of the two displacement sensors to the base plate, and X2 represents distance from the other of the two displacement sensors to the base plate. Factors influencing the length measurement include calibration of the fixed length, measurement accuracy of the displacement sensor and a tilt error of the base plate.

Abstract: This disclosure relates to non-destructive estimation of coating layer thickness based on sweep frequency photo acoustic guided wave technique. Coating of a substrate/surface protects it from wear, corrosion and serves the cosmetic aspect, hence making coating technology is an essential part industrial process. The existing techniques for coating thickness determination are either destructive or requires a prior knowledge of the refractive index of the surface under investigation or use of sophisticated instrumentation, complicated procedure and harmful radiation during industrial deployment. The disclosure utilizes an intensity modulated Continuous Wave (CW) laser diode to excite a sample thus, making the technique a partially contact based method. Further a calibration curve is plotted by determining a frequency spectrum and resonance frequency. The calibration curve is used for estimation of a coating layer thickness.

Abstract: Disclosed embodiments relate to systems and methods for locating, measuring, counting or aiding in the handling of drill pipes 106. The system 100 comprises at least one camera 102 capable of gathering visual data 150 regarding detecting, localizing or both, pipes 106, roughnecks 116, elevators 118 and combinations thereof. The system 100 further comprises a processor 110 and a logging system 114 for recording the gathered visual data 150. The method 200 comprises acquiring visual data 150 using a camera 106, analyzing the acquired data 150, and recording the acquired data 150.

Abstract: A method for estimating a geometrical shape of an optical fiber (106) includes transmitting (102) into the optical fiber an input optical signal that excites in the optical fiber multiple propagation modes. An output optical signal, which is output from the optical fiber in response to the input optical signal, is recombined with a reference signal derived from the input optical signal, so as to produce a recombined optical signal. The recombined optical signal is detected (108), and the geometrical shape of the optical fiber (106) is estimated based on the detected recombined optical signal.

Abstract: A three dimensional measurement system has a measurement unit that images the measuring object and that has a light projecting device projecting projected light onto the measuring object and a light receiving device receiving the reflected light. The system has a specular reflection member that forms a mounting surface for mounting the measuring object and reflects projected light at a specific angle. The system has a data acquisition unit that acquires imaging data and a coordinate calculation unit that calculates three dimensional coordinates for the part of the imaging data whose brightness is higher than the lower limit brightness and does not calculate three dimensional coordinates for the part whose brightness is lower than the lower limit brightness. The light receiving device is arranged at a position where the brightness of the part where the specular reflection member is imaged is lower than the lower limit brightness.

Abstract: An apparatus for detecting an angle of rotation of a rotating member includes a light source configured to emit light rays which are conditioned by a light conditioner to control a light beam geometry and emission pattern of the light rays. The conditioned rays are incident on an optical disk that emits refracted rays in form of a light spot on an optical detector. The optical disk rotates in synchronization with the rotating member. The optical detector uses position of the light spot to output an analog signal continuous and ratio-metric to the angle of rotation of the rotating member.

Abstract: In order to improve the throughput performance and/or economy of a measurement apparatus, the present disclosure provides a metrology apparatus including: a first measuring apparatus; a second measuring apparatus; a first substrate stage configured to hold a first substrate and/or a second substrate; a second substrate stage configured to hold the first substrate and/or the second substrate; a first substrate handler configured to handle the first substrate and/or the second substrate; and a second substrate handler configured to handle the first substrate and/or the second substrate, wherein the first substrate is loaded from a first, second or third FOUP, wherein the second substrate is loaded from the first, second or third FOUP, wherein the first measuring apparatus is an alignment measuring apparatus, and wherein the second measuring apparatus is a level sensor, a film thickness measuring apparatus or a spectral reflectance measuring apparatus.

Abstract: A detection method includes obtaining, during operation of a surface density device, a first current pose of a radiation source of the surface density device and a second current pose of a ionization chamber of the surface density device; ascertaining a first pose deviation of the radiation source based on the first current pose; ascertaining a second pose deviation of the ionization chamber based on the second current pose; and determining whether the radiation source has undergone a pose change with respect to the ionization chamber based on the first pose deviation and the second pose deviation.

Abstract: A method of calculating a thickness of a graphene layer and a method of measuring a content of silicon carbide, by using X-ray photoelectron spectroscopy (XPS), are provided. The method of calculating the thickness of the graphene layer, which is directly grown on a silicon substrate, includes measuring the thickness of the graphene layer directly grown on the silicon substrate, by using a ratio between a signal intensity of a photoelectron beam emitted from the graphene layer and a signal intensity of a photoelectron beam emitted from the silicon substrate.

Abstract: A probe assembly for measuring a synthetic turf infill profile having a probe, a turf surface contact assembly and a sensor. The probe is configured to extend down through the turf infill profile until a tip of the probe contacts a lower boundary of the turf infill profile. The surface contact assembly is vertically movable relative to the probe while the probe is being moved downwardly into the turf infill profile, wherein the surface contact assembly has a contact area with the turf surface that is large enough to retain the surface contact assembly resting atop an upper boundary of the turf infill profile when the lowermost tip of the at least one probe has contacted the lower boundary of the turf infill profile. The sensor reads the distance between the upper and lower boundaries of the turf infill profile at a sampled location in the turf surface.

Abstract: An apparatus for generating a roll map of a merge-wound electrode includes a position measurement device configured to acquire coordinate value data for a longitudinal position of an electrode according to an amount of rotation of the rewinder. The apparatus includes an input device configured to input an input signal indicating a start of merge-winding or an end of merge-winding, a seam detector configured to detect a seam, a reference point detector configured to detect a plurality of reference points of the merge-wound electrode, and a roll map generator configured to generate a roll map for simulating the merge-wound electrode moving in a roll-to-roll state based on the input signal of the input device, and to display the longitudinal coordinate values of the electrode, the electrode coordinate values of the seam, and the electrode coordinate values of the plurality of reference points of the merge-wound electrode on the roll map.

Abstract: Various embodiments of the present application set forth a computer-implemented method comprising aggregating positional signals that were received from device sensors, where each positional signal has an observed signal strength, identifying a subset of the positional signals, where each positional signal in the subset was received by a device sensor while the device sensor was located within the physical location, for each positional signal, generating, by an estimation device and based at least on a position of the device sensor, an approximate object height for an object located at the physical location, for each approximate object height, determining an expected signal strength for the positional signal corresponding to the approximate object height, generating a cost value that is based on a difference between the expected signal strength and the observed signal strength, and determining, by the estimation device and based on the cost values, an estimated object height.

Abstract: The invention relates to an add-on for a spirit level, designed as a marking aid for indicating and as a marking instrument for marking the position of drilled holes for mounting objects on a wall, wherein the add-on is fastened releasably on a spirit level and is arranged to be movable along the longitudinal axis of this spirit level. The object of the invention is that an add-on of this kind be designed in such a way that, during alignment, a spirit level equipped with this add-on bears fully on the associated wall and that the elements of the add-on that are necessary for a marking come into operational contact with the wall only temporarily. This object is achieved by the fact that the add-on has a pin head, a double U-shaped middle part and a fastening part for connection to the spirit level, with specific designs being proposed for these assemblies.

Abstract: Provided are various mounts, firearms, firearm components, and associated elements and methods. A mount for an at least partially curved body surface may include at least one body defining a clamping portion and a component portion connected to the clamping portion, and a level vial engaged with the component portion of the at least one body. The clamping portion may be configured to engage and secure the mount to the at least partially curved body surface, and the clamping portion may define at least two tangent contact surfaces configured to engage the at least partially curved body surface to secure the mount to the at least partially curved body surface.

Abstract: A watershed autonomous robotic data recorder maps subsurface topography and obtains water quality data for bodies of water. The device is capable of fully autonomous, manual, or hybrid navigation and includes a modular hull design which enables customization to accommodate both large and small bodies of water. A tangle-proof propulsion system is provided, to propel the hull(s). A deployable sensor pod includes a water sensor for determining if the sensor pod is in water, a pressure sensor for determining depth of the sensor pod, and a plurality of sensors for measuring water conditions. An onboard controller operates a winch that raises and lowers the sensor pod while the controller and a GPS receiver log positions of the sensor pod. This three-dimensional environmental, physical and chemical water quality attribute data collection creates a digital twin of the body of water to establish a common data environment for water modeling and analysis.

Abstract: 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.

Abstract: 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.

Abstract: 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 receiving unit for receiving marking data regarding a working surface; a marking unit for performing a marking operation on the working surface in response to the marking data; a sensing unit for scanning space targeted for scanning; and a scan condition setting unit for setting a movement path of the movable marking apparatus corresponding to the marking data, setting a scan position for scanning the space targeted for scanning by taking into account reference map data corresponding to the space targeted for scanning, and setting a scan angle of the sensing unit at the scan position.