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186 results about "Multirotor" patented technology
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A multirotor or multicopter is a rotorcraft with more than two rotors. An advantage of multirotor aircraft is the simpler rotor mechanics required for flight control. Unlike single- and double-rotor helicopters which use complex variable pitch rotors whose pitch varies as the blade rotates for flight stability and control, multirotors often use fixed-pitch blades; control of vehicle motion is achieved by varying the relative speed of each rotor to change the thrust and torque produced by each.
Unmanned aerial vehicle for monitoring infrastructure assets
ActiveUS9162753B1Solve the short flight timeStable platformAircraft controlRemote controlled aircraftFlight computerMultirotor
An unmanned aerial vehicle and associated methods for inspecting infrastructure assets includes a multirotor, electrically driven helicopter apparatus and power supply; a flight computer; positioning and collision avoidance equipment; and at least one sensor such as a camera. The flight computer is programmed for automated travel to and inspection of selected waypoints, at which condition data is collected for further analysis. The method also includes protocols for segmenting the flight path to accomplish sequential inspection of a linear asset such as a power line using limited-range equipment.
Owner:SOUTHERN ELECTRICAL EQUIP
High Performance VTOL Aircraft
ActiveUS20150344134A1Maximize effective thrustMaximize useRemote controlled aircraftWing adjustmentsJet aeroplaneEngineering
The present disclosure relates to a high performance Vertical Takeoff and Landing (VTOL) aircraft for executing hovering flight, forward flight, and transitioning between the two in a stable and efficient manner. The VTOL aircraft provides a highly stable, controllable and efficient VTOL aircraft. The preferred comprises: (1) a pusher propeller configuration with strategic placement which maximizes the effective use of thrust, (2) four propellers which allow for the highly-controllable and mechanically simple control methods used in multirotor aircraft, (3) electric motors which create mechanically simple, lightweight and reliable operation, (4) and a tandem wing configuration which is stable, controllable and efficient in both hovering and forward flight. The VTOL aircraft is capable of full runway, short runway or vertical takeoffs or landings, having unobstructed forward view for camera and sensor placement; and providing a compact, mechanically simple and low-maintenance VTOL aircraft design.
Owner:HYUNDAI MOTOR CO LTD +1
Fixed-wing multi-shaft aircraft
ActiveCN105539833AImprove flight efficiencyImprove operational efficiencyRotocraftFixed wingRotary wing
The invention provides a fixed-wing multi-shaft aircraft, and belongs to the field of aircrafts. The fixed-wing multi-shaft aircraft comprises a fixed wing and a multi-shaft rotor wing rack which are connected with each other, and the multi-shaft rotor wing rack is provided with multiple rotor wing mechanisms; the rotor wing mechanisms comprise propellers and rotating shafts, the propellers are rotatably connected with drive devices, the drive devices are fixedly connected with the rotating shafts, and the rotating shafts are connected with rotating control mechanisms. The fixed-wing multi-shaft aircraft has the advantages of both a fixed-wing aircraft and a multi-shaft aircraft, can achieve a multi-shaft mode, a fixed-wing mode and a fixed-wing and multi-shaft mixed mode and also has the advantages of achieving vertical taking-off and landing and hovering and being high in flying speed and long in flying time.
Owner:CHENGDU XUESHANG TECH CO LTD
All-electric multirotor full-scale aircraft for commuting, personal transportation, and security/surveillance
ActiveUS20150353192A1Contribute to operational simplicity and stability and safetyEnergy efficient board measuresEfficient propulsion technologiesAviationThrottle control
Methods and systems for a full-scale vertical takeoff and landing manned or unmanned electric aircraft, having an all-electric, non-hydrocarbon-powered lift and propulsion system, an integrated avionics system for navigation and guidance, and simple joystick and throttle controls to provide the operator with ‘drive by wire’ style direction control. The vehicle employs counter-rotating sets of propellers and lift is provided by multiple pairs of small electric motors driving directly-connected, counter-rotating sets of propellers. Automatic computer monitoring by one or a plurality of programmed redundant digital motor management computer or autopilot controls each motor-controller and motor to produce pitch, bank and elevation, while simultaneously restricting the flight regime that the pilot can command. Sensed multi-axis information and parameter values about vehicle state are used to provide stable vehicle control and to detect when stable vehicle operating limits are about to be exceeded.
Owner:ALAKAI TECH
Multirotor flying vehicle
A multirotor flying vehicle including at least one rotor support frame organized on a geometric grid, with a plurality of rotor assemblies coupled to the at least one rotor support frame. At least one power supply is coupled to and powers the rotor assemblies. A control system is coupled to the rotor assemblies and is configured to operate the vehicle.
Owner:GEISE DAVID +1
Asymmetric multirotor helicopter
ActiveUS20150274286A1Increase speedShorten speedRemote controlled aircraftRotocraftDrive shaftMultirotor
An asymmetric multirotor helicopter has a structure supporting at least one main and two secondary propulsion systems. A flight control unit controls the helicopter by varying the relative speed of each of the main and secondary propulsion systems. Each main propulsion system includes at least one main motor drive and a main drive shaft that carries and propels a main differential contra-rotating transmission configured to share the power provided by the main drive shaft with two contra-rotating output shafts. Each secondary propulsion system includes at least one secondary motor drive and a secondary drive shaft that carries and propels respective secondary propulsion blades. The two contra-rotating output shafts support and propel for mutually contra-rotation motion two sets of main propulsion blades. The main drive shaft rotates in the same direction as one of the secondary drive shafts and at least one secondary drive shaft rotates in an opposite direction.
Owner:KERETH YEFIM
Multi-shaft aircraft
InactiveCN103786878ALow costReduce weightRemote controlled aircraftRotocraftMotor driveFlight vehicle
The invention discloses a multi-shaft aircraft. The multi-shaft aircraft comprises a bracket and a driving system; the bracket comprises a first side rod, a second side rod, and a main rod, wherein the first side rod and the second side rod are arranged in parallel; the main rod is fixed between the first side rod and the second side rod; two ends of the main rod are respectively fixed in the middle parts of the first side rod and the second side rod; the driving system is mounted on the bracket and comprises a motor and four rotor wings, wherein the four rotor wings are respectively mounted at four end parts of the first side rod and the second side rod; the motor drives a plurality of rotor wings to rotate through a synchronous transmission mechanism; the synchronous transmission mechanism comprises a main shaft which is driven to rotate through the motor; a synchronous transmission belt is arranged between the main shaft and each of the rotor wings; the synchronous transmission belt is arranged in the first side rod or the second side rod. According to the multi-shaft aircraft, the synchronous transmission belt is arranged in cavity body between the first side rod and the second side rod, a first synchronous belt wheel is arranged in a first protection space of a first support, and thus the synchronous transmission belt and the first synchronous belt wheel can be effectively protected once the aircraft collides by accident.
Owner:张家港锐泰智能科技有限公司
All-electric multirotor full-scale aircraft for commuting, personal transportation, and security/surveillance
ActiveUS9242728B2Contribute to operational simplicity and stability and safetyEnergy efficient board measuresEfficient propulsion technologiesThrottle controlAviation
Owner:ALAKAI TECH
Multirotor type unmanned aerial vehicle available for adjusting direction of thrust
InactiveUS20160325829A1Minimizes influence of disturbanceUnmanned aerial vehiclesRemote controlled aircraftGyroscopeFixed frame
The multi-rotor type unmanned aerial vehicle includes: a main body including the battery module and the control module; a plurality of frames connected to a side surface of the main body and extending therefrom; a first motor connected to a distal end of each of the frames; and a drive unit connected to the first motor, wherein the drive unit includes a rotary frame and a stationary frame each having a circular shape and connected to each other in the form of a gyroscope, a second motor supported at the center of the rotatable frame, and a propeller connected to the second motor, and a vector of thrust generated by rotation of the propeller is variable according to rotation of the first and second motors.
Owner:GWANGJU INST OF SCI & TECH
Hybrid Power Supply For Electric Multirotor Rotorcraft
InactiveUS20170008627A1Increase distanceExtension of timePower plant cooling arrangmentsBatteries circuit arrangementsJet aeroplaneElectric power system
Embodiments are directed towards hybrid power supply that provides electric power to a multirotor rotorcraft to extend range or flying time. In one embodiment, an internal combustion engine and fuel tank are provided that interoperate with a battery provided by a commercial multirotor rotorcraft to substantially extend flying time or flying distance.
Owner:DE SOTO JOAQUIN +1
Fire-fighting and rescue robot system and control method
The invention discloses a fire-fighting and rescue robot system and a control method. The fire-fighting and rescue robot system comprises an upper computer, a fire-fighting robot, a rescue robot and a multi-shaft aircraft. The fire-fighting robot, the rescue robot and the multi-shaft aircraft conduct information interaction with the upper computer. The fire-fighting and rescue robot system further comprises a wall sensor unit conducting information interaction with the upper computer. The wall sensor unit comprises a flame sensor, a combustible gas sensor, an infrared temperature measurement sensor and a doppler displacement sensor. In the fire-fighting and rescue robot system, the fire-fighting robot, the rescue robot and the wall sensor unit are responsible for environmental monitoring, fire fighting and rescue in a building. The multi-shaft aircraft is responsible for image capture outside the building, and obtained data are comprehensive and have practical application and referable performance. Cooperative work between the robots is achieved through the fire-fighting and rescue robot system, a computer-computer communication work mode and a human-computer interaction work mode are included, the requirements in an actual fire scene are met, the work efficiency can be improved greatly, and an inestimable function is achieved on the conditions that quick reaction is achieved, thus property loss caused by a fire disaster is reduced, and trapped people are rescued.
Owner:NANJING INST OF TECH
Multirotor aircraft that is adapted for vertical take-off and landing
ActiveUS20200269975A1Increasing structural efficiency of structureOperational securityPower plant constructionWing shapesClassical mechanicsMechanical engineering
A multirotor aircraft 10 that is adapted for vertical take-off and landing, comprising a fuselage, a thrust producing units assembly that is provided for producing thrust in operation, and a forward-swept wing that comprises a portside half wing and a starboard side half wing. Each one of the portside and starboard side half wings comprises an inboard section that is connected to the fuselage and an outboard section that forms a wing tip. The inboard sections of the portside and starboard side half wings form a central wing region. The portside and starboard side half wings are respectively connected in the region of their wing tips to an associated outboard wing pod that supports at least two non-tiltably mounted thrust producing units of the thrust producing units assembly.
Owner:AIRBUS URBAN MOBILITY GMBH
Tube launched hybrid multirotor methods and apparatus for system
A launching system may include a multirotor platform that includes a plurality of motors and propellers. The multirotor platform may be launched from a launch tube and actuated to transition from a storage state to a flight state where the propellers are operable via the motors. The multirotor platform may include pivotable pivoting motor arms that are connected between the main flight body and the propellers. After the multirotor platform is deployed from the launch tube, the pivoting motor arms may be actuated to extend from a retracted position against the main flight body and enable operation of the motors and the propellers for powered flight of the multirotor platform. The multirotor platform may include motor pylon wings connected to the motors and retractable nose gears for deploying the motor pylon wings and enabling unpowered flight or gliding movement of the multirotor platform.
Owner:RAYTHEON CO
Amphibious power propulsion device suitable for sea and air and multi-axis aircraft
InactiveCN105539831AComplex structureReduce weightPropulsion power plantsOutboard propulsion unitsRotational axisFlight vehicle
Owner:SOUTH CHINA UNIV OF TECH
Multicopter with angled rotors
A multicopter with angled rotors is disclosed. In various embodiments, a multicopter as disclosed herein includes a fuselage and a plurality of rotors. At least some of the rotors are disposed on opposite sides of the fuselage and each is oriented at a corresponding angle to a substantially horizontal plane of the aircraft, the angle being of a magnitude such that a plane of rotation of the rotor does not intersect at least a critical portion of the fuselage.
Owner:WISK AERO LLC
Rich fuel multi-grade environmental protection type oil for internal comustion engine and its production method
The invention discloses a multi-fuel multistage environmental-protection internal-combustion oil, composed of mineral basal oil and hydrogenated plant oil, oil residue HVI150BS bright recombinant oil and compound additive, it can adapt to different-structural internal-combustion engines, including: gasoline engine, turbine pressure diesel engine, ship diesel engine, locomotive diesel engine, multirotor engine, adaptive to different-fuel automobiles, adaptive to the vehicles used in the winter and the summer, adopting closed-loop electrojet machine inner-purifying technique and converting tertiary tail gas, and has better degradability, lower environmental protection after leaked or used as compared with existing internal-combustion oil, and because its degradation ratio reaches 80%, it relatively reasonably solves the compounding of high-efficacy clean disperser with high-temperature antioxidant, and also solves problems of low discharge, low-temperature fluidity, high-temperature dispersivity and key low ash content.
Owner:南宁飞日润滑科技股份有限公司
Take-off and landing platform for aircraft
InactiveCN106379550AExtended Vibration Conduction PathReduce vibration transmissionHelicopter landing platformTemporary pavingsStable fixationMulti axis
The invention provides a take-off and landing platform for assisting an aircraft to take off and land in a bumpy environment. The take-off and landing platform comprises a fixing plate and an attitude adjustment seat, wherein the fixing plate is used as a platform where the aircraft takes off and lands, and is used for fixing the aircraft before the aircraft takes off; the attitude adjustment seat is mounted on the lower side of the fixing plate and is used for stabilizing a space attitude of the fixing plate; and the attitude adjustment seat is at least provided with two degrees of freedom capable of rotating around the X axis and the Y axis. The multi-axis aircraft is fixed on the fixing plate before taking off, and the attitude adjustment seat dynamically stabilizes the attitude of the aircraft, so that the aircraft can be prevented from swinging back and forth, and good take-off conditions are supplied to taking off; and the stable fixing plate can supply a good landing environment to the multi-axis aircraft.
Owner:ZHUHAI PANSHI ELECTRONICS TECH CO LTD
Multi-axis aircraft capable of movably flying, flying assisting platform and flying method
PendingCN106394886ASimple structureImprove safety and reliabilityGround installationsRotocraftMulti axisMultirotor
The invention relates to a multi-axis aircraft capable of movably flying. The multi-axis aircraft capable of movably flying comprises an aircraft body, a power device and a taking off and landing device, wherein the taking off and landing device comprises an undercarriage and a fixer which is mounted at the lower side of the undercarriage; the multi-axis aircraft is fixed to a platform through the fixer. The multi-axis aircraft capable of movably flying is characterized by further comprising a tilting rotating driving device used for driving the power device to tilt and rotate toward the moving direction until a preset angle is reached while the platform moves; the fixer is used for releasing the multi-axis aircraft from the platform when the rotating speed of rotating wings of the power device, the generated thrust or an accelerator reaches a preset value; the tilting power device can absorb the airflow which impacts the multi-axis aircraft, so that the wind resistance can be reduced, and as a result, the safety and reliability in taking off can be improved.
Owner:ZHUHAI PANSHI ELECTRONICS TECH CO LTD
A multirotor unmanned aerial vehicle and a controlling method thereof
ActiveCN106716273AIncreased number of rotorsSolve the need for large loadProgramme control in sequence/logic controllersPosition/course control in three dimensionsUncrewed vehicleEngineering
A multirotor unmanned aerial vehicle includes a first-rotor unmanned aerial vehicle (1a) comprising a first rack (19a) and a plurality of first rotor assemblies (111a) mounted on the first rack; a second-rotor unmanned aerial vehicle (1b) comprising a second rack (19b) and a plurality of first rotor assemblies (111b) mounted on the second rack; and a fixing mechanism (1c) used for connecting and fixing the first rack (19a) to the second rack (19b). The first-rotor unmanned aerial vehicle (1a) or the second-rotor unmanned aerial vehicle (1b) also comprises a main controller used for selecting a control mode for the multirotor unmanned aerial vehicle after abutting according to the manner of abutting the first-rotor unmanned aerial vehicle (1a) and the second-rotor unmanned aerial vehicle (1b), and controlling the plurality of first rotor assemblies (111a) and the plurality of first rotor assemblies (111b). A controlling method of the multirotor unmanned aerial vehicle is also provided.
Owner:SZ DJI TECH CO LTD
Systems and methods for stabilisation of aerial vehicles
InactiveUS20180281949A1Compromise in efficiencyCompromise in flight timePropellersAircraft stabilisationFlight vehiclePropeller
A rotor assembly for a multirotor aircraft, and a multirotor aircraft, are disclosed herein. The rotor assembly has a first motor having a first axis of rotation and a first propeller connected to the first motor. The rotor assembly has a second motor having a second axis of rotation, and a second propeller connected to the second motor. The second propeller is smaller in length than the first propeller. The first motor and the first propeller produce a greater proportion of a total lift thrust of the rotor assembly than the second motor and the second propeller. The multirotor aircraft includes an airframe and a plurality of the rotor assemblies mounted to the airframe.
Owner:ALTUS IP LTD
Aircraft Battery Systems and Aircraft Including Same
PendingUS20180086472A1Primary cell to battery groupingUnmanned aerial vehiclesAdhesiveElectric aircraft
Battery modules for unmanned and human piloted electric aircraft comprise two planar substrates with electrochemical cells secured between to form load-bearing structural components from which aircraft with greater endurance can be constructed. The cells can be oriented perpendicular or parallel to the substrates, and in the latter case the substrates can include slots that the cells fit into. The cells can be secured to the substrates by adhesives, welding, soldering and the like, as well as by mechanical tensioners. Battery modules can be formed to the shapes of aircraft parts such as wings. Multirotor aircraft are disclosed in which the arms and other parts of the aircraft are constructed from such battery modules.
Owner:IMPOSSIBLE AEROSPACE CORP
Security drone with non-lethal deterrent
InactiveUS20200027326A1Alarms using electric shocksAutonomous decision making processWireless transceiverTransceiver
A drone for deterring intruders within a monitored area includes a multirotor aerial vehicle with an electric drive apparatus and a power supply configured to provide electrical energy. A controller is configured to control the multirotor aerial vehicle. A first sensor is in electrical communication with the controller, the sensor configured to provide navigation information to the controller. A wireless communication circuit is in electrical communication with the controller, and in wireless communication with an external wireless transceiver. A deterrence effector bay is in electrical communication with the controller. The deterrence effector bay includes a non-lethal deterrence effector and an actuator. Activation of the actuator causes the delivery of the non-lethal deterrence effector to a target. The drone may be used in conjunction with an alarm system as a deterrent against intrusion.
Owner:AMCREST GLOBAL HLDG
Aircraft Battery Systems and Aircraft Including Same
InactiveUS20180099756A1Primary cell to battery groupingFinal product manufactureAdhesiveElectric aircraft
Owner:IMPOSSIBLE AEROSPACE CORP
Multirotor drone with variable center of lift
InactiveUS20160376014A1Extended flight timeImprove stabilityUnmanned aerial vehiclesWingsControl systemRotor (electric)
A system and method for efficiently maneuvering a multirotor drone having a control system, an electrical power source, a plurality of rotor assemblies each having a rotor boom, a rotor mast, at least one rotor blade, a rotor assembly adjustment apparatus, a plurality of electric motors, wherein each electric motor is connected to a rotor boom positioned in a substantially horizontal direction and drives a rotor mast positioned in a substantially vertical direction and connected to at least one rotor blade, with the position of said rotor boom automatically adjustable in a substantially horizontal direction by the adjustment apparatus and the control system.
Owner:ALNAFISAH KHALID HAMAD MUTLEB
Flight control method and apparatus for multiaxial flight vehicle
ActiveCN105253301ASmooth landingAttitude controlPosition/course control in three dimensionsFlight vehicleFlight control modes
The invention discloses a flight control method and apparatus for a multiaxial flight vehicle. The method includes: detecting whether a plurality of power systems with countershaft design are abnormal by a flight control system; and when the flight control system detects that any power system is abnormal, adjusting the countershaft power system to make the multiaxial flight vehicle land stably. The method and the apparatus provided by the invention solve the problem that the multiaxial flight vehicle cannot maintain balance when any power system in the multiaxial flight vehicle is abnormal in the prior art, and the multiaxial flight vehicle still can land stably when abnormality occurs to any power system of the multiaxial flight vehicle.
Owner:SICHUAN AEE AVIATION TECH CO LTD
Multi-axis aircraft
InactiveCN105599895AIncrease flexibilityImprove stabilityFuselagesAir-flow influencersRemote controlPropeller
The invention belongs to the technical field of an unmanned aerial vehicle and specifically relates to a multi-axis aircraft. The multi-axis aircraft comprises a frame, a plurality of pipe clamps and an aircraft arm, wherein the pipe clamps are uniformly distributed on a side surface of the frame; an inner end of the aircraft arm is connected with the pipe clamps; a motor base is arranged at an outer end of the aircraft arm; a positive assembling motor is arranged in the motor base; a reversed assembling motor is arranged in the middle of the aircraft arm; a propeller easily assembled structure is respectively arranged on each of the revolving shafts of the positive assembling motor and the reversed assembling motor; a positive assembling propeller is arranged on the propeller easily assembled structure on the positive assembling motor; a reversed assembling propeller is arranged on the propeller easily assembled structure on the reversed assembling motor; an electric footstool foldable device is arranged at the bottom of the frame; and a footstool is connected with the electric footstool foldable device. The multi-axis aircraft can increase the generated lifting force within the limited volume size; the cruising power is higher; the manufacturing cost is lower; the structure is stable and firm; the sensitivity, the stability and the remote control precision are higher; the mounting and dismounting of each part are simple; and the multi-axis aircraft has competitive advantages in the competition process.
Owner:浙江智天科技有限公司
A multirotor aircraft with an airframe and at least one wing
ActiveUS20190112039A1Suitable for transportationSafe and reliablePropellersWing shapesAirframeMultirotor
A multirotor aircraft with an airframe and at least one wing that is mounted to the airframe, the at least one wing being provided with at least four thrust producing units that are arranged in spanwise direction of the at least one wing, wherein each one of the at least four thrust producing units comprises at least one rotor assembly that is accommodated in an associated shrouding, the associated shrouding being integrated into the at least one wing, wherein the associated shrouding defines an air duct that is axially delimited by an air inlet region and an air outlet region, wherein the air inlet region exhibits in circumferential direction of the air duct at least two different aerodynamic profiles.
Owner:AIRBUS HELICOPTERS DEUT GMBH
Multirotor joined-wing aircraft with vtol capabilities
ActiveUS20200269980A1Large load levelReduction of structural weight efficiencyPropellersPower plant constructionFlight vehicleClassical mechanics
A multirotor aircraft that is adapted for vertical take-off and landing. The multirotor aircraft comprises a fuselage, a tail boom that is provided with a vertical fin, a thrust producing units assembly that is provided for producing thrust in operation, at least one lower wing which comprises a lower wing inboard section that is connected to the fuselage and a lower wing outboard section that forms a lower wing tip, and at least one upper wing which is connected to the vertical fin and which forms an upper wing tip. The at least one upper wing is joined to the at least one lower wing in a joined-wing configuration.
Owner:AIRBUS URBAN MOBILITY GMBH
UNIVERSAL CONTROLLER FOR ROBUST TRAJECTORY TRACKING IN MULTIROTOR UNMANNED AERIAL VEHICLES (UAVs)
InactiveUS20190031341A1Unmanned aerial vehiclesRemote controlled aircraftDifferentiatorControl signal
A universal controller for robust trajectory tracking in multirotor unmanned aerial vehicles (UAVs) is disclosed. A particular embodiment includes: a sensor system to measure position and orientation of a multirotor unmanned aerial vehicle (UAV); and a flight control system, coupled to the sensor system, the flight control system being configured to: obtain position and orientation data from the sensor system; generate a plurality of derivatives from the position and orientation data using a differentiator; apply a decoupling control law to approximately decouple translation dynamics from each other in a three-dimensional (3D) space; compute error values between desired trajectories and actual trajectories in each dimension of 3D space using the plurality of derivatives and the decoupled dynamics; and generate control signals to vary speeds of a plurality of thrust elements to counteract the computed error values in each dimension of 3D space.
Owner:INTEL CORP
Mine field inventory method and system
ActiveCN106528592AImprove accuracyImprove securityMeasurement devicesStill image data indexingGraphicsShape change
The invention provides a mine field inventory method and system. The method comprises the step of using a multi-axis aircraft as a mine inventory tool, and further comprises the following steps of setting motion parameters of the multi-axis aircraft; performing mine inventory in a specified region by the multi-axis aircraft; collecting mine field parameters acquired by the multi-axis aircraft; and generating at least one of a mine field database and a graph library. Mineral stacks are counted, measured and calculated at any time through various coal inventory technologies including an unmanned aerial vehicle type coal inventory instrument; the shape changes of the mineral stacks caused in material getting and material stacking processes are scanned and recorded; after the volumes and weights of the mineral stacks are accurately calculated, the first-in first-out process of related minerals is guided through digital management of mineral field zoning; and different minerals are displayed in different colors.
Owner:北京壬工智能科技有限公司
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