Abstract: There is disclosed a passive intumescent fire damper having a metal housing, an inner meltable liner and having a metal and intumescent laminate assembly surrounding the inner liner.

Abstract: A coupling harness useful with a HVAC mini-split system includes a first interface connected to a thermistor, a second interface connected to a condensate overflow sensor and a control device interface connected to a HVAC electronic control device. The first and second interfaces can notify the control device interface of the existence of an alarm condition of the thermistor and condensate overflow sensor, respectively. The control device interface can actuate the HVAC electronic control device in response to such notifications that an alarm condition exists for the thermistor or condensate overflow sensor.

Abstract: A liquid heater such as a direct electrical resistance liquid heater having multiple flow channels is provided with a temperature-sensing element in the form of a wire extending across numerous channels, preferably all of the channels, near the downstream ends of the channels. The resistance of the wire represents the average temperature of the liquid passing through all of the channels, and hence the temperature of the mixed liquid exiting from the heater. A bubble suppressing structure is provided in the vicinity of the wire.

Abstract: A water mixing system attached to an existing plumbing system supplying ambient temperature water and providing temperature regulated water to a user. The water mixing system includes an insulated water tank, a heat pump connected to the insulated water tank with a heat rejecting radiator inside the insulated water tank and a heat absorbing radiator outside the insulated water tank, a temperature detector in the insulated water tank, and one outlet of the insulated water tank connected to a first inlet of a first dispensing water tank. Having a second inlet to receive the ambient temperature water from the existing plumbing system and at least one dispensing outlet, the first dispensing water tank provides mixed water of a desirable temperature from heated water from the insulated water tank and the ambient temperature water via control of the valves attached to the first inlet and the second inlet.

Abstract: An automatically flushing water heater maintenance system may be provided, the system including a water heater and a water heater controller. The water heater may include an inlet, an outlet, and a flush outlet having a first control valve in flow communication therewith. The first control valve may be configured to control a flow of water and sediment through the flush outlet out of the water heater. The water heater controller may be configured to communicate with the first control valve by transmitting a first control signal to the first control valve, the first control signal configured to cause the first control valve to open or close as part of an automatic flushing process. As a result of the flushing, the useful life of the water heater may be extended, and/or water heater leakage alleviated. Insurance discounts may be provided based upon using the automatic water heater flushing functionality.

Abstract: A solar thermal collector and an accessory structure of a building are provided. The solar thermal collector includes at least one heat absorbing plate and at least one heat insulating plate. Each of the heat absorbing plate includes at least one first slab and first engaging parts connected with the first slab. Each of the heat insulating plate includes at least one second slab and second engaging parts connected with the second slab. The first engaging parts are respectively engaged with the second engaging parts, and a gap is maintained between the first slab and the second slab to define a heat collecting channel, through which a heat transfer medium flows between the heat absorbing plate and the heat insulating plate. A heat conductivity of the heat absorbing plate is at least 30 times greater than a heat conductivity of the heat insulating plate.

Abstract: A target condensing temperature and a target evaporating temperature are changed in accordance with a load of each load side unit obtained by using load detection means, and an operating frequency of a compressor and a rotation speed of a fan are controlled such that a condensing temperature obtained by using temperature detection means coincides with the target condensing temperature and an evaporating temperature obtained by using the temperature detection means coincides with the target evaporating temperature.

Abstract: An ejector refrigeration circuit, which is configured for circulating a refrigerant, includes at least two controllable ejectors, which are connected in parallel and respectively comprise a primary high pressure input port, a secondary low pressure input port and an output port; and a control unit, which is configured for operating the ejector refrigeration circuit employing a method which includes a) operating a first ejector by controlling the opening of its high pressure port until the maximum efficiency of said first ejector has been reached or the actual refrigeration demands are met; b) operating at least one additional ejector by opening its primary high pressure input port for increasing the refrigeration capacity of the ejector refrigeration circuit in case the actual refrigeration demands are not met by operating the first ejector alone.

Abstract: An adsorption heat pump may include a high temperature circuit for a high temperature heat transfer medium, a medium temperature circuit for a medium temperature heat transfer medium, and at least one sorption module in operative communication with the high temperature circuit and the medium temperature circuit. The at least one sorption module may include a sorption zone, a phase change zone, a working medium, a sorbent which may absorb and desorb the working medium, a first flow channel thermally contacting the sorbent, and a second flow channel thermally contacting the phase change zone. A first valve and a second valve may be in operative communication with the sorption module, the high temperature circuit, and the medium temperature circuit. The first valve and second valve may be configured to move between a closed position, a first open position, a second open position, and at least one intermediate position.

Abstract: A compact cooling system based on thermoelastic effect is provided. In one embodiment, the system comprises a pair of rollers serving as a heat sink, stress applicator and belt drive, a cold reservoir and a solid refrigerant belt coupled to the cold reservoir and to the heat sinks to pump heat from the cold reservoir to the heat sink. The refrigerant belt comprises solid thermoelastic materials capable of thermoelastic effect. The refrigerant material is mechanically compressed when entering the gap of the roller and subsequently released after passing through. When compressed the refrigerant material transforms to martensite phase and releases heat to the roller and neighboring materials. After released by the rollers, the refrigerant material transforms back to austenite and absorbs heat from the ambient atmosphere.

Abstract: A heat pump system includes a shared motor having a common shaft; a thermoelectric generator conductively coupled to the shared motor, the thermoelectric generator is configured to provide electricity to the shared motor; a high-temperature compressor rotatably attached to the common shaft, the high-temperature compressor is configured to rotate the shared motor via the shared shaft and configure to channel heated fluid to the thermoelectric generator; a low-temperature compressor rotatably attached to the common shaft, the low-temperature compressor is configured to rotate the shared motor via the shared shaft and configure to channel cooled fluid to the thermoelectric generator; a first evaporation core in fluid communication with the thermoelectric generator; and a second evaporation core in fluid communication with the first evaporation core and in fluid communication with the high-temperature compressor.

Abstract: Liquid desiccant air-conditioning systems cool and dehumidify a space in a building when operating in a cooling operation mode, and heat and humidify the space when operating in a heating operation mode.

Abstract: Apparatuses, systems and methods implementing a multi-coil heat exchanger are directed to providing good heat transfer performance, capacity, and efficiency, and while reducing pressure drop through multi-coil microchannel evaporators. The multi-coil heat exchanger in some examples is a multi-coil microchannel evaporator. The multi-coil microchannel evaporator can be implemented in a refrigerant system that is a single circuit, where the multi-coil microchannel evaporator is an air to refrigerant type heat exchanger. The multi-coil microchannel evaporator includes a distribution to the multiple coils of the multi-coil microchannel evaporator, where the distribution includes one or more separations to transmit refrigerant to each of the coils of the multi-coil microchannel evaporator and one or more junctions to transmit refrigerant from the coils.

Abstract: A combined suction header and accumulator for a refrigeration system is described that may protect a compressor from refrigerant liquid entering the compressor while reducing superheat used to evaporate the refrigerant. The combined suction header and accumulator unit for a refrigeration system includes a suction header coupled to an exit side of an evaporator. The suction header includes a main body and receives a flow of refrigerant from the evaporator. The flow of refrigerant includes a liquid portion and a vapor portion. The combined suction header and accumulator unit includes a liquid accumulator disposed within the main body of the suction header. The liquid accumulator blocks the liquid portion of the flow of refrigerant from exiting the main body.

Abstract: A refrigeration system includes a valve and a controller. The valve is configured to control the flow of refrigerant into an evaporator, the refrigerant having an associated liquid setting comprising a temperature and a pressure at which the refrigerant flows through the valve. The controller is operable to adjust the liquid setting, the adjusted liquid setting comprising a temperature and a pressure selected to improve energy efficiency under conditions currently being experienced by the refrigeration system, wherein the controller is operable to adjust the temperature and the pressure simultaneously such that the adjustment does not interfere with operation of the valve.

Abstract: There is provided a method for diagnosing an ice-making apparatus, wherein the ice-making apparatus includes a control unit and a display unit, wherein the method comprises: determining, by the control unit, whether a diagnosis-initiation condition for the ice-making apparatus is satisfied or not; upon determination that the diagnosis-initiation condition for the ice-making apparatus is satisfied, counting, by the control unit, an actual number of ice forming and removing cycles performed by the ice-making apparatus; and displaying the counted number on the display unit by the control unit.

Abstract: A refrigeration appliance includes a fresh food compartment and a freezer compartment. An ice maker with an ice mold is disposed within the fresh food compartment for freezing water into ice pieces. A refrigeration system includes a system evaporator and an ice maker evaporator dedicated to cooling the ice mold. A frame rotatably supports the ice mold within the fresh food compartment between an ice-forming position and an ice-harvesting position. The frame supports the ice maker evaporator at a stationary position that serves as a pivot axis for the ice mold so the ice mold can rotate around the ice maker evaporator between the ice-forming position and the ice-harvesting position, while the ice maker evaporator remains stationary. In one example, a heater is rotatable with the ice mold, and a drip tray is located underneath ice mold and rotatable with the ice mold.

Abstract: An island merchandiser including a first merchandiser module, a second merchandiser module, and a single, unitary base. The first merchandiser module includes a first case defining a first product display area that is maintained within a predetermined temperature range below approximately 41 degrees Fahrenheit. The second merchandiser module is positioned next to the first merchandiser module, and includes a second case defining a second product display area The second merchandiser module is positioned so that a rear wall of the second case is in communication with a rear wall of the first case so that the first and second merchandiser modules are positioned in a back-to-back relationship. The unitary base is positioned to at least partially support each of the first and second merchandiser modules relative to a support surface. The module defined by the second merchandiser module is different from the module defined by the first merchandiser module.

Abstract: An ice making assembly for a refrigerator appliance is provided. The ice making assembly includes an icebox defining an ice making chamber and a heat exchanger aperture. The icebox is mounted to a refrigerator door and surrounded by a door liner defining a circulation duct for receiving cooled airflow. A heat exchanger is positioned within the heat exchanging aperture and includes a first side positioned within the ice making chamber and a second side positioned outside the ice making chamber within the circulation duct. An icemaker is positioned within the ice making chamber and a fastener removably attaches the icemaker to the first side of the heat exchanger.

Abstract: A system and method for controlling a refrigeration system is disclosed. The system includes a cooled compartment, at least one heat source selectively activated to provide heat, at least one sensor, and a controller. The sensor detects a temperature and a relative humidity of ambient air that surrounds the cooled compartment. The controller is in communication with the at least one heat source and the at least one sensor. The controller includes logic for calculating a dew point temperature based on the temperature and the relative humidity. The controller also includes logic for selecting a region of operation based on at least one of the dew point temperature and the relative humidity, where the region of operation is representative of ambient conditions that surround the cooled compartment. The controller further includes logic for determining if the at least one heat source is activated based on the region of operation.

Abstract: A refrigerator including a main body having a storage compartment; a door rotatably coupled to the main body to open or close the storage compartment; and an icemaker and an ice bucket configured to store ice cubes produced by the icemaker. The ice bucket is provided with a feeding device to feed the ice cubes stored therein. The main body includes a driving device configured to drive the feeding device. When the door is closed, the driving device is connected to the feeding device, and when the door is opened, the driving device is disconnected from the feeding device.

Abstract: Handling and storage of beer kegs in walk-in coolers used in the food/beverage industry. The invention utilizes a track system with an electric hoist to lift and stack kegs anywhere within the defined beer cooler. The invention is designed to optimize the keg storage footprint and better organize keg rotation. With the optional digital scale, the end user can take the guess work out of calculating partial kegs for precise inventory control.

Abstract: The subject matter of this specification can be embodied in, among other things, a method for time shifting when a cold storage facility is cooled that includes determining a thermal model of a cold storage facility, obtaining an energy cost model that describes a schedule of variable energy costs over a predetermined period of time in the future, determining an operational schedule for at least a portion of a refrigeration system based on the thermal model, the energy cost model, and a maximum allowed temperature, and powering on the portion the refrigeration system based on the operational schedule, cooling, by the powered portion of the refrigeration system to a temperature below the maximum allowed temperature, reducing power usage of the powered portion of the refrigeration system based on the operational schedule, and permitting the facility to be warmed by ambient temperatures toward the maximum allowed temperature.

Abstract: Embodiments described herein provide methods and systems for separating a mixed ethane and CO2. A method described includes generating a liquid stream including ethane and CO2. The liquid stream is flashed to form an ethane vapor stream and solid CO2. The solid CO2 is accumulated in an accumulation vessel and the gas is removed from the top of the accumulation vessel.

Abstract: The present invention relates to methods of increasing the operability, capacity, and efficiency of natural gas liquefaction processes, with a focus on mixed refrigerant cycles. The present invention also relates to natural gas liquefaction systems in which the above-mentioned methods can be carried out. More specifically, a refrigerant used in a pre-cooling heat exchanger of a natural gas liquefaction plant is withdrawn from the pre-cooling heat exchanger, separated into liquid and vapor streams in a liquid-vapor separator after being cooled and compressed. The vapor portion is further compressed, cooled, and fully condensed, then returned to the liquid-vapor separator. Optionally, the fully condensed stream may be circulated through a heat exchanger before being returned to the liquid-vapor separator for the purpose of cooling other streams, including the liquid stream from the liquid-vapor separator.

Abstract: A method and apparatus for drying a wet textile article with a radio frequency (RF) applicator and a controller, the method includes energizing the RF applicator to generate a field of electromagnetic radiation (e-field), determining a dynamic drying cycle of operation in the controller, and controlling the energization of the RF applicator according to the determination of the dynamic drying cycle of operation, wherein the wet article is dried.

Abstract: Sports equipment racks of the present disclosure may include an enclosure having odor mitigating features. Sports equipment racks may include a drip pan for retaining liquid that may drip from associated wet sports equipment hanging on the rack. Sports equipment racks may include forced ventilation configured to draw air external from an associated enclosure.

Abstract: A heat exchange plate for a plate-type heat exchanger and a plate-type heat exchanger provided with said heat exchange plate. The heat exchange plate includes an opening used to form an end opening, a plurality of protrusions arranged around at least a portion of the opening along a circular line along the opening, the plurality of protrusions protruding towards one side of a plate plane; transition portions arranged between at least two neighbouring protrusions, the transition portions being located on one side of the plate plane, and being a preset distance from the plate plane. The distance from the tops of the protrusions to the plate plane is greater than the distance from the lowest points of the transition portions to the plate plane.

Abstract: A heat exchanger according to the present invention comprises: a plate-shaped body having an interior space in which a working fluid is vaporized or condensed and flows; and a wick located within the body, the wick comprising a plurality of needle-shaped particles between which the working fluid flows. By forming a wick comprising needle-shaped particles, the heat exchanger according to the embodiments of the present invention can improve the porosity of the wick compared to conventional groove or mesh-shaped or sintered wicks. Accordingly, the working fluid is capable of flowing inside the wick more smoothly than in the conventional wicks, thereby improving a heat exchange rate or heat exchange performance.

Abstract: The present invention discloses a closed system for thermochemical storage comprising at least one water condenser and at least two thermochemical modules, wherein a first thermochemical module comprises a first thermochemical material and a second thermochemical module comprises a second thermochemical material, and wherein the at least one water condenser and the thermochemical modules are connected so that water vapor can be exchanged individually between any two selected from the list consisting of the at least one water condenser and the at least two thermochemical modules. A method for desorption in the system according to the invention is also described. In this method, the first thermochemical module is used as a condenser to dry the second thermochemical module.

Abstract: The invention relates to a heat exchanger, in particular for a motor vehicle, including a bundle (3) for a heat exchange between a first and second fluid A, L and a housing (5) inside of which said bundle (3) is housed, said exchanger further including at least one collector (7) attached to said housing (5), said collector (7) being configured to guide said first fluid A between said bundle (3) and an inlet or outlet of said exchanger. According to the invention, said collector (7) is configured to form an abutment (9) for positioning the heat exchanger bundle (3) in the housing (5) for attaching said collector (7) to said housing (5).

Abstract: A heat exchanger and method for making a heat exchanger assembly is described, involving generating a digital model of a heat exchanger assembly that comprises a heat exchanger core within a housing. The digital model is inputted into an additive manufacturing apparatus or system comprising an energy source. The additive manufacturing apparatus applies energy from the energy source to successively applied incremental quantities of a metal powder, which fuses the powder to form incremental portions of the heat exchanger core and housing according to the digital model. Unfused or partially fused metal powder is enclosed in a first region of the heat exchanger assembly between the heat exchanger core and the housing.

Abstract: The system and method for installing external corrosion guards of the present disclosure comprises a method of protecting tubing in tubular heat exchangers from external corrosion that includes the installation of protective collars or guards around the tube outer diameter at the tubsheet plate, anti-vibration baffle, and/or pass partition plate levels. The external corrosion guards can be installed using a ridge method, where a ridge sits on a plate level, using a mechanical expansion method, and using a mechanical rolling method.

Abstract: A container for a waste heat utilization circuit may include a housing that defines a housing interior such that the housing interior can be flowed through by a working medium. A sheath may be arranged in the housing interior for accommodating an auxiliary medium. The sheath may be fluid-tight and heat-conductive at least in certain areas. The sheath may define a sheath interior of variable volume.

Abstract: A method for joining a first metal part with a second metal part, the metal parts having a solidus temperature above 1000° C. The method includes applying a melting depressant composition on a surface of the first metal part, the melting depressant composition including a melting depressant component that includes phosphorus and silicon for decreasing a melting temperature of the first metal part; bringing the second metal part into contact with the melting depressant composition at a contact point on said surface; heating the first and second metal parts to a temperature above 1000° C.; and allowing a melted metal layer of the first metal component to solidify, such that a joint is obtained at the contact point. The melting depressant composition and related products are also described.

Abstract: A device implementable in an AR-15 styled firearm includes a buffer tube and spring system and a bolt carrier assembly. The buffer tube and spring system is mounted on a lower receiver of the firearm and includes a pusher and a buffer tube which has a cavity that receives the pusher and the bolt carrier tail therein. The bolt carrier assembly includes a bolt carrier head and a bolt carrier tail connected to the pusher. The bolt carrier head includes a cavity that houses a bolt assembly of the firearm therein. The bolt carrier tail is elastically coupled to the bolt carrier head such that the bolt carrier head travels linearly at most by a first dimension, the bolt carrier tail travels linearly at most by a second dimension smaller than the first dimension, and the buffer travels linearly at most by a third dimension smaller than the second dimension.

Abstract: A break barrel rifle comprises a butt, on which the cylinder (2) is attached, a barrel (3) where the pellet chamber (5) is located, a magazine (12) for pellets (13), together with articulation means (4) and characterised in that it comprises: an elastic rod (6), with a central section (9) and two ends that are coupled to the cylinder (2), a body (10) where the central section (9) of elastic rod (6) is positioned, with forward and backward movement inside said body (10) and that is coupled to the barrel (3) and pushing means (11) linked to the elastic rod (6) and positioned between the pellet (13) to be loaded and the elastic rod (6).

Abstract: An adapter for coupling ammunition magazines together comprises a structure formed to include a first interior pocket having an opening facing in a first direction, and a second interior pocket having an opening facing in a second direction opposite the first direction. The first interior pocket is configured to receive a base of a first magazine, while the second interior pocket is configured to receive a base of a second magazine. To enable receipt of a magazine base by a pocket and a tight, secure fit within the pocket, the first interior pocket has an interior dimension slightly less than a corresponding exterior dimension of the base of the first magazine, and the second interior pocket has an interior dimension slightly less than a corresponding exterior dimension of the base of the second magazine.

Abstract: A weapons system comprises a firearm, one or more sensors on an interior or exterior portion of the firearm configured to detect a motion or location of a moving part of the firearm relative to the sensor, a microprocessor configured to detect a signal sent by the one or more sensors and determine a status of the firearm, and a display in communication with the microprocessor configured to display information relating to the status of the firearm.

Abstract: A device enabling a shotgun operator to carry an additional choke tube on the body of a shotgun is disclosed. Embodiments include a universal adapter end cap configured to be threaded onto the end of a shotgun magazine, the universal adapter end cap including an opposite end adapted to secure an accessory (e.g., shotgun choke tube). Accordingly, embodiments enables an operator to stow and carry a second unused choke tube at the end of the shotgun magazine. Some embodiments of the universal adapter end cap include a threaded opening that enables the choke tube to be threaded into the threaded opening. Some embodiments provide threads constructed from flexible material to enable both threading and push insertion of an accessory into the universal adapter end cap.

Abstract: A flash redirecting recoil compensator for a firearm includes a compensator body that provides a platform for the rest of the components. The compensator body attaches with a firearm in order to reduce recoil force and redirect the muzzle flash away from the site of the shooter. An attachment chamber and a discharge chamber of the compensator body are positioned through a top portion of the compensator body from a rear face to a front face. The attachment chamber fastens the compensator body into the firearm while the discharge chamber provides space for the discharging bullet. At least two vectoring ports, which are traversed through the compensator body and into the discharge chamber, redirect hot gas and unspent propellants away from the firearm after the bullet is discharged as the redirection of the hot gas and unspent propellants reduce the recoil force and provide a clear shooting sight.

Abstract: A support pod that supports a weapon in a firing position includes a support tube telescopingly joined with a leg having a longitudinal axis. A lock portion defines grooves downwardly angled relative to the longitudinal axis. A guide portion defines recesses downwardly angled relative to the axis. The recesses can be distal and separate from the grooves, and both optionally are downwardly spiraling. The leg is operable in a locked mode, in which a lock element is in a groove, and a guide element is in a corresponding recess, to set a first overall length of the support. The leg can operate in an adjustment mode in which the lock and guide element can transition out from the groove and recess, and can move to other respective grooves and recesses chosen by a user to set the pod at another overall length. A related method of use is provided.

Abstract: A shooting support bag is provided. The shooting support baq includes first and second opposite sides. The first side has a butterfly shape and has at least one panel. The shooting support bag further includes a top portion. The top portion is positioned between the first and second sides. The top portion includes a top section and a first angled section. The first angled section extends downwardly and outwardly relative to the top section. The first angled section defines a first bearing surface area. The top portion has an exterior surface. The exterior surface comprises a non-slip surface.

Abstract: A tensioning device for a crossbow or the like, such as a harpoon, a line throwing device, a toy crossbow, a pistol crossbow, a spear thrower, or a ballista, includes a shaft and limbs connected thereto. A connection element designed to connect to the shaft of the crossbow has securing devices for rotatably or pivotally securing the limbs. The connection element is connected to at least one drive device which can be connected to the limbs and by which the limbs can be converted rotatably or pivotally from a first position, in which the limbs form a first angle together with the shaft, into a second position, in which the limbs form a second angle together with the shaft, wherein the second angle is larger than the first angle, in order to convert the limbs and a bowstring connected thereto from a non-tensioned position into a tensioned shoot-ready position.

Abstract: The crossbow tripod rest is configured for use with a crossbow. The crossbow tripod rest is configured for use with a tripod. The tripod is further defined with a tripod head and a quick release plate. The quick release plate attaches the crossbow to the tripod head such that the tripod forms a load path that supports the weight of the crossbow above a supporting surface. The crossbow tripod rest comprises a cylindrical structure, a first quadric segment, a second quadric segment, and a plurality of shims. The first quadric segment and the second quadric segment are formed in the cylindrical structure. The plurality of shims secure the crossbow in the crossbow tripod rest.

Abstract: A compressed gas gun including a housing and a bolt movable within a passage in the housing. Movement of the bolt relative to the housing opens a flow path for firing a projectile.

Abstract: A target marking system includes a light source emitting a thermal beam having a predetermined temporal modulation, and an optics assembly directing the thermal beam to impact a target, the target directing radiation to the optics assembly in response to the impact. A portion of the radiation having the predetermined temporal modulation. The target marking system further includes a detector configured to distinguish the portion of the radiation having the predetermined temporal modulation from a remainder of the radiation, the portion of the radiation passing to the director through the optics assembly. The system also includes a readout integrated circuit, the detector directing an input signal to the readout integrated circuit, and the readout integrated circuit producing a digitally enhanced output signal in response to receipt of the input signal.

Abstract: An electronic accessory for a firearm includes a housing including a right side, a left side, and an attachment mechanism for securing the electronic accessory to the firearm. The housing contains components of the electronic accessory. The components of the electronic accessory include an electronic component, a sensor sensing a magnetic field, and a circuit board coupled to the electronic component and the sensor. The circuit board controls the electronic component and suspends power to the electronic component when the sensor senses a magnetic field above a threshold strength. A first switch is disposed on the right side of the housing and a second switch is disposed on the left side of the housing. The switches are operable to control the electronic component via the circuit board. A power source provides power to at least one of the electronic component, the sensor, and the circuit board.

Abstract: Devices, systems and methods for providing firearms, including handguns, with infrared sights and a camera which can be held in one shooter's hand. The camera can send live video which can display a target to a portable display, such as a smart phone, smart watch or smart glasses, that is held in another hand of the shooter, so that the shooter remains out of harms' way if the target is armed.

Abstract: A laser shooting training system includes a target device including a target area and a camera for photographing the target area, and an analysis device for calculating a coordinate of a laser discharged to the target area based on an image photographed by the camera, and displaying a spotted position corresponding to the laser coordinate to a user display screen. The analysis device calculates a center coordinate of a laser area included in the image, corrects the center coordinate based on a correction value relating to a size of the laser area, and calculates the laser coordinate.