Abstract: A method of measuring pressure includes the steps of (1) providing a vacuum cabinet with a storage compartment and an insulating space, and three temperature sensors; (2) sensing a first temperature level of an interior wall of the storage compartment; (3) sensing an ambient temperature level within the storage compartment; (4) sensing a second temperature level of an exterior wall of the storage compartment; (5) calculating an overall heat transfer coefficient (Q) using the ambient temperature level, the first temperature level, and a convective heat transfer coefficient for the interior wall of the storage compartment; (6) calculating a temperature differential between the second and first temperature levels; (7) determining a conductivity level (K) using the temperature differential, the overall heat transfer coefficient (Q) and a thickness of the insulating space; and (8) determining a pressure level (P) within the insulating space using the conductivity level (K).

Abstract: Beverage chillers are disclosed. A beverage chiller may include a container platform that receives a beverage container and a chiller tank. The chiller tank may have a central axis and may have an agitator. The chiller tank may be filled with water. A conveyor may move the container platform and beverage container into the chiller tank. The container platform and beverage container may rotate in a first direction in the chiller tank and the agitator may rotate the water in a second direction.

Abstract: An apparatus, system, device, and the like, for a liquid nitrogen dispensing head that may be used in a system for cooling aggregate, such as may be found in a batch plant involved in producing concrete. The dispensing head is positioned over a conveyor belt that conveys aggregate to a mixing apparatus to produce concrete. The head dispenses liquid nitrogen onto the aggregate to cool the aggregate and may include interior chambers separated by one or more baffles. The chambers may reduce the pressure of the liquid nitrogen onto the aggregate in relation to the flow pressure of the liquid nitrogen entering the dispensing head. In another example, an assembly may include sidewalls that extend to the aggregate on either side of the head to form a cooling tunnel through which the aggregate is conveyed and is exposed to the liquid nitrogen being dispensed from the head.

Abstract: In an aspect, a system comprises a water stream in fluid communication with an electrolyzer; the electrolyzer comprising an anode and a cathode side chamber; a deep space oxygen radiator in fluid communication with the anode side chamber of the electrolyzer; a cryogenic heat exchanger comprising an oxygen storage tank in fluid communication with the deep space oxygen radiator; an electrochemical hydrogen compressor in fluid communication with the cathode side chamber; a hydrogen storage tank in fluid communication with the electrochemical hydrogen compressor via a cooled hydrogen stream; wherein at least a portion of the cooled hydrogen stream is in a first fluid communication with an expansion valve and the cryogenic heat exchanger; wherein the hydrogen storage tank is in a second fluid communication with the electrochemical hydrogen compressor via a warmed hydrogen stream; and wherein the cryogenic heat exchanger is in fluid communication with the warmed hydrogen stream.

Abstract: Aspects of the present disclosure relate to at-shore liquefaction of natural gas. One exemplary aspect includes an apparatus comprising: (i) an air-cooled electric refrigeration module (“AER Module”) configured to input electricity and preprocessed feed gas from a source, convert the preprocessed feed gas into a liquefied natural gas (“LNG”), and output the LNG; and (ii) a plurality of LNG storage tanks configured to input the LNG from the AER Module and output the LNG to an LNG transport vessel. According to this aspect, the AER Module may be on an upper deck of a water-based apparatus, and the plurality of LNG tanks may be in a hull of the apparatus. Numerous additional exemplary aspects of the apparatus and related kits, methods, and systems are disclosed.

Abstract: An air separation unit and associated method for separating air by cryogenic distillation using a distillation column system including a higher pressure column, a lower pressure column, an intermediate pressure kettle column, and an argon column arrangement is provided. The disclosed air separation unit and method is particularly suited for production of high purity nitrogen for electronics applications and includes nitrogen recycle circuit necessary to attain the higher purity nitrogen products. In addition to the intermediate pressure kettle column, the present air separation unit and associated method employs a once-through argon condenser, preferably disposed within the lower pressure column as well as a once-through kettle column reboiler, a once-through kettle column condenser.

Abstract: An air separation device can include: a first compressor and a second compressor for compressing feed air; a first refrigerator and a second refrigerator for cooling the feed air; a pre-purification unit for pre-purifying the feed air; a flow rate measuring unit for measuring the flow rate of the feed air; a main heat exchanger for subjecting the feed air to heat exchange; a purification portion into which the feed air led out from the main heat exchanger is fed, and which separates and purifies product nitrogen and/or product oxygen from the feed air; and a compressor control unit for controlling the feed quantity of the feed air in accordance with an increase or decrease in the production quantity of product nitrogen and/or product oxygen.

Abstract: A modular industrial energy transfer system includes a shell and at least one energy transfer unit coupled to the shell. The shell includes a plurality of sidewalls, a ceiling member coupled thereto, and a plurality of mounting structures disposed along the shell. The plurality of sidewalls and the ceiling member cooperate to define an interior volume to accommodate a work product. The at least one energy transfer unit is coupled to the shell via at least one of the plurality of mounting structures and is partially disposed through the shell to generate an airflow pattern through the interior volume of the shell.

Abstract: A rotary tube kiln, with a rotatably mounted rotary tube, which has a motorized drive, a mounting, a material inlet and a material outlet, wherein the interior space of the rotary tube has a process space, the inside atmosphere of which is separate from the outside atmosphere. The process space is sealed off from a pressure space by means of a first seal and the pressure space is sealed off from the outside atmosphere by means of a second seal and, by means of a pressing device, a first pressing force can be applied to the first seal and a second pressing force can be applied to the second seal, the first pressing force can be set independently of the second pressing force and, during operation, the internal pressure of the pressure space is higher than the internal pressure of the process space.

Abstract: The disclosure provides a heat exchanger and an, air conditioner with the heat exchanger. A heat exchange assembly includes a first channel and a second channel which are used for allowing a refrigerant to pass through, a communication portion communicated with the first channel and the second channel, and a plurality of protrusions.

Abstract: The invention relates to a heat exchanger (20) plate (1, 2a) intended to delimit at least one channel (30, 30a, 30b) for circulation of a fluid, the circulation plate (1) being provided with a bottom (3) and a raised rim (5, 5a-5h) that surrounds the bottom (3), the circulation plate (1) comprising at least one opening (7, 7a-7d) through which a fluid can enter the channel (30, 30a, 30b), characterized in that the opening (7, 7a-7d) is delimited by at least one at least partially rectilinear edge (9a). Application to the field of heat exchanges.

Abstract: Ultrasound devices and systems are disclosed in which cooling of an active acoustic element of an ultrasound transducer is achieved via an electrically conductive member that extends beyond a proximal side of the active acoustic element to contact a heat exchanger. The electrically conductive member delivers electrical driving signals to the active acoustic element while conducting heat to the heat exchanger. A region of the proximal surface of the active acoustic element that is free from contact with the electrically conductive member may also absent from contact with a liquid or a solid, thereby facilitating reflection of ultrasound energy. The heat exchanger may include an electrically insulating fluid that contacts the electrically conductive member to remove the heat conducted through the electrically conductive member. The active acoustic element may be a multilayer lateral mode element, and the electrically conductive member may form an electrode of the lateral mode element.

Abstract: A heat exchanger includes an inlet for receiving bulk solids, a plurality of heat transfer plate assemblies, a plurality of spacers disposed between adjacent heat transfer plate assemblies, and supports for supporting the heat transfer plate assemblies. The heat transfer plate assemblies include a first plate having a first pair of holes extending therethrough, the first plate having channels extending along a surface thereof, for the flow of fluid through the channels, and a second plate bonded to the first plate to enclose the channels, the second plate including a second pair of holes generally aligned with the first pair of holes to form through holes to facilitate flow of the fluid through the through holes and the channels.

Abstract: A heat transport device comprises first flow passages through which a first fluid flows, and second flow passages through which a second fluid flows, wherein a cross-section A satisfying the following Requirement 1 to Requirement 3 can be achieved. Requirement 1 is that the cross-section A is a cross-section perpendicular to the second flow passages. Requirement 2 is that in the cross-section A, the holes of second flow passages are separated by meandering partition plates and are disposed in a layered manner. Two adjacent partition plates are a partition plate B and a partition plate C, and when comparing a point ?, which is the top point of a mountain in the partition plate B closest to the partition plate C, and a point ?, which is the bottom point of a valley in the partition plate C closest to the partition plate B, the point ? is closer to the partition plate C side than the point ?. Requirement 3 is that the first flow passages are present inside the partition plates.

Abstract: A heat exchanger for vehicle arranged to allow an internal circulation of at least one fluid, comprising at least a heat exchanger bundle and at least a duct (10) at least partially outside the heat exchanger bundle, the duct (10) penetrating into the heat exchanger bundle by a hole arranged in a terminal plate (8) of the heat exchanger bundle, the duct (10) comprising at least a collar (42) lining the hole, characterized in that the heat exchanger comprises a reinforcing mean (20) in touch with the collar (42) of the duct (10) and with the terminal plate (8) of the heat exchanger bundle.

Abstract: A recoilless gun system, comprising a gun assembly and associated ammunition for use with the gun assembly employs an integral barrel and a rear inserted ammunition round. The recoilless gun system may combine a laser initiator and a polymer cased ammunition to enable a lightweight system. In such embodiments, the cartridge case is made from a polymer that resists high pressure before extruding into small gaps.

Abstract: A firing mechanism for a striker-fired, magazine-fed semi-automatic pistol includes a linear cam that is attached to and moves with a slide. The linear cam moves a cam follower that pivots a reset bar. The reset bar bears upon a trigger bar projection, moving the trigger bar projection out of engagement with a lower end of a sear lower arm as the slide closes. Interference between the reset bar and the trigger bar projection prevents a second pull of the trigger from releasing the sear and moving the sear to the firing position to fire a second round until the pistol is in battery, while allowing the shooter to achieve a high rate of semi-automatic fire.

Abstract: A fire control group system for a firearm includes a trigger that includes a trigger base, a trigger extension extending from the trigger base, and an over-travel member coupled to the trigger base at a front end thereof. The trigger base has a sear hook extending therefrom and defining a recess and a transverse bore intersecting the recess. The over-travel member has a contact surface and is moveable relative to the trigger base such that a distance in a vertical direction between the contact surface and the trigger base is adjustable.

Abstract: A method of assembling a bolt handle to a bolt assembly of a firearm includes inserting the bolt handle through a handle opening defined by a bolt body. A distal end of the bolt handle is inserted through the handle opening until the distal end extends past an outer perimeter of the bolt body. At least a portion of a bolt shroud is inserted through a first portion of an aperture defined by the bolt handle. A force is applied to the bolt shroud while the bolt handle is retracted within the handle opening of the bolt body so that the bolt shroud is positioned within a second portion of the aperture. The bolt shroud is held in connection with the bolt handle when the bolt shroud is positioned within the second portion of the aperture to secure the bolt handle to the bolt body.

Abstract: A bolt carrier group and a method for manufacturing it are disclosed. The bolt carrier group contains a first bolt carrier section containing a first end and a second end, a second bolt carrier section containing a first end and a second end, a plurality of pins positioned between the first bolt carrier section and the second bolt carrier section, a coupling pin configured to prevent decoupling of the first bolt carrier section from the second bolt carrier section.

Abstract: A pistol is disclosed, including a body made from synthetic material having a channel formed inside the body. A slide is guided in a longitudinal direction of the body, the slide including a barrel and a breech. A single-block chassis having an elongated shape extends from a central portion of the body to a rear end of the body. The chassis further includes guiding elements for guiding the slide. The pistol is configured such that the channel is designed to receive the chassis removably, and the chassis is fastened to the body using a formfitting, sliding connection.

Abstract: A loading aid which projects beyond the lateral faces (220, 230) of the slide (200) and is attached in the region of a rear end face (210) of the slide (200) of a firearm is created by a panel (110) which projects beyond the lateral faces (220, 230) of the slide (200) with at least one of its lateral regions (120, 130) lying opposite one another and is introduced into a horizontally oriented recess (211) in the rear end face (210) of the slide (200).

Abstract: A hydraulic recoil device for a handgun or pistol is provided. The device includes a cylinder defining an interior hollow compartment having a first end and a second end. The device further includes a first resilient member; a piston assembly arranged adjacent to the first resilient member and at least partially within the cylinder, where the piston assembly includes a piston head, a piston rod, and a piston cap; a compressible accumulator arranged within the cylinder; and a second resilient member outside of the cylinder. When the piston rod is displaced toward the first end of the cylinder in operation, a hydraulic resistance is generated by the piston assembly, and when a first end of the second resilient member is displaced toward the second end of the cylinder in operation, additional resistance is generated by the second resilient member.

Abstract: Pneumatic simulator for an open bolt firearm including an actuator group having a stationary piston and a moving bolt. With each simulated firing cycle producing a firing event, the spring actuates moving bolt toward stationary piston such that the activator unseats a valve located in the stationary piston. Unseating the valve allows regulated compressed gas to exit a high pressure reservoir located in the firearm magazine well which drives the moving bolt back against the spring to complete a firing cycle. Subsequent firing cycles will continue automatically as long as the shooter keeps the trigger depressed. A tension rod, and laser also may comprise the simulator assembly. A nut may be used to secure the tension rod and laser. A laser cable may be used to electrically connect laser to a firing event signal generator. The firing event signal generator may include a magnet located in the moving bolt and a pickup positioned in the stationary piston.

Abstract: A loading aid device for a stick magazine (2) includes a holder part (1) for inserting the stick magazine, a feed part (13) held on the holder part for displaceable guidance of cartridge(s) (8) to be loaded, a thrust piece (14) which is adjustable between passive and active positions in order to push down the magazine feed (11) together with cartridges possibly already located in the receiving space (9) of the stick magazine and to free up a front free space in a front region of the receiving space, and a pusher (16) which is adjustable between a feed position and a push-in position for pushing one of the cartridges to be loaded into a rear free space which can be freed up during pulling back of the thrust piece from the active position in the direction of the passive position in a rear region of the receiving space.

Abstract: A manually operated toy pneumatic launcher for launching a ball projectile. The pneumatic launcher has a housing with a first section and a second section that move relative to each other. At least one handle extends from the second section that rotates through a range of motion. A base tube is affixed to the second section. A launch tube is affixed to the first section. The launch tube extends into the base tube creating a telescoping tube assembly. A mechanism is provided that is powered by the handle moving through its range of motion. The mechanism includes a gear box, a lever arm, and a slide that act together to linearly move the first section of the housing relative to the second section. This selectively changes the length of the telescoping tube assembly, therein enabling the telescoping assembly to compress and release air in the launching of the projectile.

Abstract: The disclosed technology includes a semi-automatic crossbow having a stock, a plurality of limbs, a drawstring, a bolt feeder, a barrel, a draw assembly, and a release. The draw assembly can be configured to automatically move the drawstring to a cocked position and the release can include a trigger and be configured to release the drawstring when the trigger is actuated. The disclosed technology can further include a truck configured to engage the drawstring and a bolt such that the bolt can be propelled forward by the truck when the drawstring is released by the release.

Abstract: In some embodiments, an archery bow comprises a riser, a first limb and a second limb. A first rotatable member is arranged to rotate about a first axis and a second rotatable member is arranged to rotate about a second axis. A bowstring is attached to the first rotatable member and arranged to bias the first rotatable member in a first rotational direction about the first axis. A power cable is attached to the first rotatable member. A servicing string is arranged for attachment to the first rotatable member and arranged to bias the first rotatable member in a second rotational direction about the first axis.

Abstract: A toy gun capable of illuminating soft projectile being ejected therefrom, comprising a gun body, a grip assembly is fixedly attached to the gun body, and a trigger assembly mounted on the grip assembly. The gun body has a power source, a motor, a launch assembly with a launch tube, a light source and a light reflecting unit. When the trigger assembly of the toy gun is actuated, the power source activates the motor and switches on the light source. The activated motor causes the launch assembly to discharge a soft projectile in the launch tube and the light emitted from the light source is reflected by the light reflecting unit onto the soft projectile once it is discharged, thereby illuminating the soft projectile.

Abstract: A projectile launching apparatus for launching projectile with the pressure exerted by the seawater. The projectile launching apparatus includes a large barrel launch, a piston, one or more piston stoppers, plurality of hinged doors, piston locks, and a plurality of water pump is available at bottom of the barrel to generate pressure and help to launch the projectile, wherein the assembly for the projectile is less expensive than present systems, lighter in weight, and of less complexity.

Abstract: A cover for use with an optic device to hold and display shooting information. The cover may have resilient retention members that allow a display to be releasably attached and detached from the cover. The display may be made from a single substrate or multiple substrates in order to make the shooting information contained thereon highly visible in a variety of conditions and shooting preferences. The cover may include a flexible body for securing the cover to optic devices of a variety of sizes.

Abstract: A firearm mounting plate assembly is provided. The firearm mounting plate assembly includes a firearm slide with a first side, a second side, and a top side. A recess defined by a first slide wall and a recess base surface is disposed on the firearm slide top side. The recess includes a rib. The firearm mounting plate assembly includes a mounting plate with a top surface, a bottom surface, a front side, and a rear side. The mounting plate includes one or more bosses. The mounting plate is configured to secure within the recess of the firearm slide.

Abstract: A hypersonic self-guided missile system is described. Particularly, embodiments describe missiles whose trajectories are controlled by an on-board control unit that decrease the effect of damaging heat to sensitive internal components by employing one or more annular windows, internal mirrors, lenses, and/or cameras. Embodiments may have an internal camera oriented substantially toward or away from the nose of the missile.

Abstract: A terrain-referenced navigation system for an aircraft comprises: a stored digital terrain map; a position calculation unit arranged to calculate aircraft position relative to the stored digital terrain map to determine a terrain-referenced aircraft position; a fall line calculation unit arranged to calculate a fall line for a projectile starting from the terrain-referenced aircraft position as a launch point; and an impact point calculation unit arranged to directly compare the fall line with the digital terrain map, by incrementally comparing a height of the projectile along the fall line with a height of the terrain according to the stored digital terrain map in order to find an expected impact point on the terrain.

Abstract: An exterior shell for an armored cab having a longitudinal axis and a transverse axis is provided. The exterior shell has a right side panel extending parallel to the longitudinal axis, a left side panel extending parallel to the longitudinal axis, and a rear panel extending parallel to the transverse axis. A cab lower surface extends between the right side panel and the left side panel. The cab lower surface has a center tunnel extending along the longitudinal axis with an exterior curvature having a variable radius as the center tunnel extends along the transverse axis of the exterior shell. The center tunnel is configured to act as a pressure vessel in the event of an explosion beneath the armored cab.

Abstract: A handheld personal security device comprising a computer processor, at least one trigger switch, noise generator, wireless transceiver, a directional defensive mechanism, and an electronic camera having a field of view. The defensive mechanism projects at least one defensive agent along the field of view. This agent can be a chemical spray or high-voltage low-current electrical charge. The device is configured so that activation of the trigger switch automatically activates the at least one defensive mechanism and the electronic camera. The device processor is also configured, when triggered, to use this camera to obtain at least one image of the field of view, and use its wireless transceiver to wirelessly transmit this image to an external computerized device or 911 emergency call system. Further, when triggered, the security device is also configured to activate its noise generator, which can produce at least one sound with an intensity exceeding 100 decibels.

Abstract: A target turner and associated components and methods. The target turner is configured to hold a target to be shot by a shooter. The target turner is configured to hold the target in a shooting orientation for being shot by the shooter and in a non-shooting orientation for hiding a face of the target from the user. A turning assembly of the target turner includes a crank wheel and two turning wheels. The crank wheel drives the first turning wheel for turning the target toward the non-shooting orientation and drives the second turning wheel for turning the target toward the shooting orientation. A target support of the target turner is configured to disconnect from the turning assembly to avoid damage to the turning assembly if outside force is applied to the target support.

Abstract: The present disclosure is directed to mobile correctional facility robots and systems and methods for coordinating mobile correctional facility robots to perform various tasks in a correctional facility. The mobile correctional facility robots can be used to perform many of the tasks traditionally assigned to correctional facility guards to help reduce the number of guards needed in any given correctional facility. When cooperation is employed among multiple mobile correctional facility robots to execute tasks, a central controller can be used to coordinate the efforts of the multiple robots to improve the performance of the overall system of robots as compared to the performance of the robots when working in uncoordinated effort to execute the tasks.

Abstract: A cartridge to be fired through a barrel comprises a cartridge body with a maximum outer diameter, and a removable and replaceable driving band with an outer diameter greater than the diameter of the cartridge body. The driving band is positioned on the cartridge body such that it is the only part of the cartridge that engages the barrel through which it is fired.

Abstract: An object of the present disclosure is to propose a height measuring device which performs height measurement with high accuracy at each height with a relatively simple configuration even when the sample surface height changes greatly. A height measuring device which includes a projection optical system configured to project a light ray onto an object to be measured and a detection optical system including a detection element configured to detect a reflected light ray from the object to be measured, where the projection optical system includes a light splitting element (103) which splits a trajectory of the light ray with which the object to be measured is irradiated into a plurality of parts, and thus it is possible to project a light ray to a predetermined position even when the object to be measured is located at a plurality of heights, is proposed.

Abstract: A method for characterising high aspect ratio (“HAR”) structures etched in a substrate includes, for at least one structure, an interferometric measurement step, carried out with a low-coherence interferometer positioned on a top surface of the substrate, for measuring with a measurement beam, at least one depth data relating to a depth of the HAR structure, and a first adjusting step for adjusting a diameter, at the top surface, of the measurement beam according to at least one top critical dimension (“top-CD”) data relating to a width of the HAR structure.

Abstract: A method and system implementing the method for characterising structures etched in a substrate, such as a wafer, includes at least one structure etched in the substrate, an imaging step including the following steps: capturing, with an imaging device positioned on the top surface of the substrate, at least one image of a top surface of the substrate, and measuring a first data relating to the structure from at least one captured image, at least one interferometric measurement step, carried out with a low-coherence interferometer positioned on the top surface, for measuring with a measurement beam positioned on the structure, at least one depth data relating to a depth of the structure; and a first adjusting step for adjusting the measurement beam according to the first data.

Abstract: An apparatus and method for inspecting an object by optical triangulation, where the signal of interest in a captured image corresponds to an interaction between a light beam and an environment surrounding the object rather than between a light beam and the object itself. The surrounding environment may be configured to interact in a manner that is detectable by filling it with a flowable scattering medium, e.g. a gas, mist or vapour comprising a suspension of fine particles in air. Light that is scattered by the flowable scattering medium is visible in a captured image. Where the flowable scattering medium is not present, e.g. because the object blocks it, the scattered signal is less. A boundary of a scattered signal region may thus provide information about the location of an object.

Abstract: Systems, methods, and computer readable medium are provided for determining a wall loss measurement associated with corrosion and/or erosion present within an insulated pipe. A inspection image is acquired for a pipe wall of an insulated pipe at a first location and used to determine an inspection thickness of the pipe wall at the first location. An amount of wall loss measurement can be determined based on a difference of a nominal thickness for the pipe wall at the first location and the determined inspection thickness. The wall loss measurement can characterize an amount of wall material lost due to corrosion and/or erosion present in the pipe wall at the first location. The wall loss measurement can be output for further processing and/or display.

Abstract: A three-dimensional data creation method for use in a vehicle including a sensor and a data receiver that transmits and receives three-dimensional data to and from an external device. The three-dimensional data creation method includes: creating second three-dimensional data based on information detected by the sensor and first three-dimensional data received by the data receiver; and transmitting, to the external device, third three-dimensional data that is part of the second three-dimensional data.

Abstract: This is a measuring tool for use in the installation of metal roofing when such metal roofing must be cut in order to fit along valleys in the roof structure. Valleys are places where the roof surface changes direction, such as where the roof of a gable joins the main body of the roof. The tool measures the point at which the metal roofing panel is to be cut by sliding the base of the tool down the last rib of the last installed panel until the tip of the pointer arm touches the chalk like along which the next panel must fit. The distance from the top of said last panel to the bottom of the base of the tool corresponds to the distance from the top of the new panel to the point at which its leading edge should be cut to fit along the chalk line.

Abstract: This sensor includes: a housing 10 which houses an electronic component in the internal space; a detection unit 40 which has a coil 42 and a core 41 that houses the coil 42 and which is arranged on the end side in the internal space; a substrate 30 which is arranged more inside the internal space than the detection unit 40 and on which a circuit electrically connected to the coil 42 is provided; a first shield 451 at least one portion of which is arranged further on the end side in the internal space than the detection unit 40 and which suppresses the penetration of noise from outside of the housing 10; and a spacer 51 which is positioned between the first shield 451 and the detection unit 40 and which separates the surfaces of the first shield 451 and the detection unit 40 that face each other.

Abstract: A dimensionless kinematics calibration method based on a virtual point and a related apparatus thereof. The method comprises: establishing a kinematics model of a motion mechanism, and arranging a plurality of virtual points at a tail end of the motion mechanism to establish a dimensionless kinematics model and a dimensionless error model; converting a measurement coordinate system into a motion mechanism coordinate system, acquiring a rotation matrix and a translation matrix of a target virtual point measured by the measurement device, and calculating actual coordinates of all virtual points to obtain a measured value of the dimensionless kinematics model; calculating a theoretical value of the dimensionless kinematics model according to a spatial relationship between a reflecting head and the tail end of the motion mechanism; and optimizing the dimensionless error model according to the measured value and the theoretical value to obtain a calibration result.

Abstract: Disclosed is a stereophotogrammetric method based on binocular vision, including the following steps: image acquisition, image correction and stereo matching are performed; cost matching and cost aggregation are performed on images of different sizes after correction; image segmentation is performed on the corrected image to determine edge pixel points of the object to be measured; and a pixel distance at an edge of the object to be measured is calculated to measure the size of the object. The method of the present invention enhances the matching accuracy of contour pixels of the object to be measured and improves the measurement accuracy.

Abstract: The instant innovation presents a real-time environmental-sensing platform and system and method for water level monitoring, reporting and human warning. The platform, system, and method monitors rising water levels throughout a given geographical area and provides real-time and trending data on flooding and flooding risks. The instant innovation utilizes an environmental sensing platform comprised of a plurality of sensor nodes that may be geographically dispersed for both collecting environmental data on a regular or variable-frequency schedule, and transmitting the environmental data.