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53results about How to "Precise positioning function" patented technology

Power distribution fault studying and judging method based on multisystem collaboration

The invention relates to a power distribution fault studying and judging method based on multisystem collaboration. The method comprises the following steps: a power distribution transformer object is positioned; whether the scheduled power outage is performed is judged; the known fault power outage is judged; a power outage range is defined by adopting an asynchronous interrogation mode; and a low-voltage line fault is judged. According to the studying and judging method, more comprehensive analysis of the operation state of a power distribution network is facilitated, detailed basis is provided for fault processing and standardized first-aid repair work of a power supply system, and accurate power supply device positioning and fault range defining functions are provided for low-voltage user repair reporting processing. Meanwhile, the acquired reading inquiring function of real-time electricity-using readings of intelligent meter users and the attributed power distribution transformers can be basically realized by the studying and judging method so that powerful auxiliary means are provided for real-time and accurate definition of repair reporting accident range for repair reporting users.
Owner:STATE GRID TIANJIN ELECTRIC POWER +1

Full-automatic integrated air column bag packaging machine

The invention discloses a full-automatic integrated air column bag packaging machine. The full-automatic integrated air column bag packaging machine comprises a rack, wherein a winding roller and a redirection roller are rotatably installed on the top of the rack, the winding roller is positioned on the front side of the redirection roller, the winding roller is parallel to the redirection roller, an air column bag clamp is installed on the lower part of the rack, the end of an air column bag bypasses the redirection roller and then is clamped by the air column bag clamp, a block pushing mechanism is installed on the front side of the rack, both the winding roller and the redirection roller are positioned above the block pushing mechanism, the block pushing mechanism is positioned above the air column bag clamp, a vertical pressing heat sealing device and a transverse pressing heat sealing cutting device are installed on the rear side of the rack, and the transverse pressing heat sealing cutting device is positioned between the redirection roller and the vertical pressing heat sealing device. The full-automatic integrated air column bag packaging machine has the advantages of reasonable structural design, rapidity and convenience in packaging, high packaging efficiency, stability and reliability in block pushing, attractive appearance and environmental friendliness of packaging materials, the problem of heavy workload caused by manual packaging is solved, an accurate positioning function is realized, and the system safety is increased.
Owner:XIAN UNIV OF SCI & TECH

Mounting structure for slot paper in a motor stator

A mounting structure for slot paper in a motor stator. The slot paper is embedded in stator slots and includes a paper bottom, a paper side, and a paper front. A lug boss is protruded between two adjacent tooth block segments and protrudes from the inner wall of an outer ring. Two ends of the slot paper extend out of each stator slot. Two ends of the paper bottom are locked between the lug bosses respectively arranged on the upper end insulator and the lower end insulator. One end of each tooth block segment is provided with a clip slot and the paper front near the opening is embedded therein. The structure is simple, has a precise slot paper positioning function, does not occupy space of the stator slot, maximizes the slot filling ratio of the slots, and thus improves the overall performance of the motor.
Owner:ZHONGSHAN BROAD OCEAN

Vehicle, electronic fence and method and system for recording vehicles in electronic fence

The invention provides a vehicle stored in an electronic fence. An emitting device in the electronic fence can emit wireless signals outwards in real time, and a wireless signal receiving device is arranged on the vehicle; when the vehicle enters into the electronic fence, the receiving device can receive wireless signals in the electronic fence, the vehicle is shown to have entered the electronic fence, and a user successfully returns the vehicle; meanwhile, when the vehicle is driven out of the electronic fence, the receiving device cannot receive the wireless signals, the vehicle is shown to have been driven out of the electronic fence, and the user successfully borrows the vehicle. Whether the vehicle is successfully borrowed or returned can be judge by emitting and receiving the wireless signals; compared with GPS location in a related technology, the wireless signals emitted by the electronic fence have a more accurate location function, can shorten an error of 200 to 500 meters within an error range of 1 meter, improves convenience for the user to borrow and return the vehicle and improves user experience.
Owner:ZHEJIANG LUYUAN ELECTRIC VEHICLE

Welding equipment for automatically and efficiently welding reinforcing steel bars to invisible well lid

The invention relates to the technical field of welding machining of invisible well lids, in particular to welding equipment for automatically and efficiently welding reinforcing steel bars to an invisible well lid. The welding equipment comprises a rack, a storage frame, a clamping and feeding assembly, a material moving and bearing assembly, a reinforcing steel bar feeding assembly and a weldingassembly; the clamping and feeding assembly comprises a first rotary table arranged on the side, close to the storage frame, of the rack, a first lifting mechanism vertically mounted at the output end of the first rotary table, a first mounting support horizontally mounted at the output end of the first lifting mechanism, a clamping and driving mechanism arranged on the first mounting support anda positioning and clamping mechanism arranged at the output end of the clamping and driving mechanism; and the clamping and driving mechanism is in transmission connection with the positioning and clamping mechanism. According to the welding equipment for automatically and efficiently welding the reinforcing steel bars to the invisible well lid, the reinforcing steel bars of the invisible well lid can be automatically welded, the labor intensity is reduced, the working efficiency is improved, the welding precision is improved, and the multiple ends of a reinforcing steel bar net can be weldedat the same time.
Owner:傅迪生

Water surface floating power generation device

The invention discloses a water surface floating power generation device, belongs to the power generation field of rescue equipment, and aims at solving the problem of floating power generation. The device comprises a large hollow sphere and a small hollow sphere, and an electrode is plated on the inner surface of the hollow sphere. Metal oxide nanorods grow on the electrode and form a nano array.Electrodes are plated on the outer surfaces of the hollow balls. A friction material is attached to a gold layer, and the small hollow ball is arranged in the large hollow ball. The interiors of thesmall hollow ball and the large hollow ball have spaces for enabling a small ball to move. One wire is connected to the electrode of the small hollow ball, and passes through the large hollow ball andis led out of one wire hole in the large hollow ball; the other wire is connected to the electrode of the hollow large ball, is led out from the other wire hole. The two wire holes allow the wires tocome out and are sealed, and the two wires are connected with a signal transmitting device to supply power, thereby achieving the floating power generation.
Owner:DALIAN NATIONALITIES UNIVERSITY

Water surface self-powered signal transmitting device

The invention discloses a water surface self-powered signal transmitting device, and belongs to the field of rescue device power generation. The problem of supplying power to a floating signal transmitting device is solved. The water surface self-powered signal transmitting device comprises a power generation device and a signal transmitting device. The power generation device floats in water andshakes on the water surface, so parts of the power generation device rub one another and generate charges, and the charges are guided out by a wire and supplied to the signal transmitting device. Theeffect of supplying power to the floating signal transmitting device can be realized.
Owner:南京青企蜂巢科技有限公司商河分公司

High-speed cutting machine for automatically ascending, descending, expanding and positioning paper core

The invention discloses a high-speed cutting machine for automatically ascending, descending, expanding and positioning a paper core. The high-speed cutting machine is characterized in that a cutting machine cutter and material alignment paper core positioning mechanism, a paper reel reeling automatic expanding mechanism and a shaftless reeling automatic lifting correction mechanism are arranged on a cutting machine frame; the cutting machine cutter and material alignment paper core positioning mechanism is aligned to a cutter and the reel paper core; the paper reel reeling automatic expanding mechanism is used for expanding and locking the reel paper core; the shaftless reeling automatic lifting correction mechanism is used for performing automatic ascending and descending and correction on the reel paper core. According to the high-speed cutting machine for automatically ascending, descending, expanding and positioning the paper core, the structure is simple, the space is reduced, the positioning function is accurate, and the functions of paper core automatic expanding, shaftless automatic ascending and descending and correction and the like are achieved.
Owner:潮州市彩达包装机械有限公司

Movable water quality monitoring system

The invention relates to a movable water quality monitoring system. The system comprises a mobile platform, a wireless anchor node, a hand-held terminal and a monitoring center, the mobile platform comprises an embedded main control board, a storage battery, a water sample collecting module, a water quality detection module, a movement control module, and a wireless communication and range finding module, the water quality detection module comprises a pH sensor, a temperature sensor, a conductivity sensor, a dissolved oxygen sensor and a turbidity sensor, the movement control module comprises a motor driving circuit and two direct current motors, the direction is controlled the direction is controlled through controlling the speeds of the direct current motors, and the wireless communication and range finding module is communicated with the hand-held terminal or the monitoring center and cooperates with the wireless anchor node to complete a range finding function. The system has the advantages of low cost, small size, flexible and convenient operation, and suitableness for being promoted.
Owner:天津盛优宝网络科技有限公司

High-emulation snake robot for investigation and exploration

The invention discloses a high-emulation snake robot for investigation and exploration, which comprises a high-emulation snake body, a plurality of drive motors I, a battery pack, a signal acquiring unit and a circuit board, wherein the high-emulation snake body comprises a plurality of rotational joints with the cardan joint function; the drive motors I are sequentially installed in the high-emulation snake body from the head to the tail and correspondingly drive the high-emulation snake body to realize flexible movement; the battery pack is connected with the drive motors I; the signal acquiring unit is installed on the high-emulation snake body; the circuit board is installed in the high-emulation snake body; a controller connected with the signal acquiring unit as well as a data storing module and a wireless communication module which are respectively connected with the controller are installed on the circuit board; power output shafts of the drive motors I are connected with the rotational joints by a transmission mechanism; and the drive motors I are connected with the controller. The invention has small volume, reasonable design, simple and convenient control and operation,good hiding effect, perfect function and wide application range and can effectively overcome various defects of the prior investigation and exploration device.
Owner:SHAANXI KINGTECH INFORMATION TECH DEV

Non-blind area real-time monitoring and alarming system for highway sudden accidents

The invention discloses a non-blind area real-time monitoring and alarming system for highway sudden accidents, belongs to the field of photoelectricity, and can solve the problems that the existing whole-course information monitoring of the highway is lack of all-road-section, all-weather and timeliness, is easily restricted by severe environments such as rainy, foggy and snowy days or unclear sight at night and the like. The system comprises a distributed sound wave detection optical cable, a sound wave signal demodulator, a network switch, a work station and a monitoring terminal. Through a sensing optical fiber network composed of a series of reflection nodes distributed at equal intervals, sound wave signals generated when traffic accidents happen are monitored at a high speed in real time without blind areas, the traffic accidents are accurately positioned by analyzing frequency components, and alarm information is sent in time. Real-time on-line monitoring and timely alarm without blind areas along the highway are achieved, linkage is carried out through a local area network and a video and unmanned aerial vehicle inspection system, accurate positions and types of faults are provided, and large-capacity and long-distance distributed sound wave monitoring is achieved.
Owner:WUHAN UNIV OF TECH

Vehicle-mounted unit and system with ambiguous path identification function

The invention belongs to the technical field of intelligent transportation, and relates to a vehicle-mounted unit and system with an ambiguous path identification function. The vehicle-mounted unit comprises a single-chip microcomputer, a wide area network module, a Beidou compatible positioning module, a DSRC (Dedicated Short Range Communication) radio frequency module and a security module, wherein the single-chip microcomputer is a core chip which is responsible for control, operation and storage; the wide area network module is used for performing authentication and data communication between the vehicle-mounted unit and a background service system; the Beidou compatible positioning module provides accurate position information and speed information of a vehicle for the single-chip microcomputer; and the DSRC radio frequency module can perform DSRC with a highway road side unit; and functions of data writing and reading are realized at the entrance and exit of a highway toll station through the security module and the DSRC radio frequency module with a DSRC antenna. The vehicle-mounted unit and the system of the invention can solve the technical problems such as static, isolated-point and lagged identification and inaccurate and incomprehensive recorded, provided and read information of the existing highway ambiguous path identification technology.
Owner:WATCHDATA SYST

Portable wireless communication device, wireless positioning system having the same and positioning method thereof

The invention discloses a portable wireless communication device, a wireless positioning system having the same and a wireless positioning method. A wireless communication module in the portable wireless communication device can be connected with a plurality of wireless lamp control devices around the portable wireless communication device. A processing module can perform data transmitting or receiving with the plurality of wireless lamp control devices through the wireless communication module, and furthermore can screen a preset number of selected wireless lamp control devices according to the wireless communication signal strength or communication reaction time of the plurality of wireless lamp control devices. The processing module can transmit a position request signal to each selected wireless lamp control device through the wireless communication module for acquiring the position signal of each selected wireless lamp control device. The processing module utilizes the wireless communication module for transmitting a lamp control signal to a random wireless control device through one or a plurality of devices in the plurality of selected wireless lamp control devices, or can transmit the position signal of each selected wireless lamp control device or the identity signal of the portable wireless communication device to a control center.
Owner:HEP TECH

Novel inspection rail robot device

The invention discloses a novel inspection rail robot device. The novel inspection rail robot device comprises a robot system, a rail and a controller, the robot system runs on the rail and comprisesa vehicle frame, a stepping motor, wheels, a rotating mechanism, a camera and a color recognition sensor, the wheels are located below the vehicle frame, the stepping motor drives the wheels to rotatethrough a gear set, the rotating mechanism is fixed above the vehicle frame, the camera is fixed above a steering engine, and the color recognition sensor is fixed in front of the vehicle frame; a plurality of road signs with different colors are arranged on one side of the rail at equal intervals and divide the rail into a plurality of sections which are numbered and stored in the controller; the stepping motor, the rotating mechanism, the color recognition sensor and the camera are connected with the controller; and the controller judges the position of the robot system according to the color recognized by the color recognition sensor and the rotation data of the stepping motor. The inspection rail robot device is simple in structure and capable of achieving the accurate positioning function and improving the accuracy of inspection work.
Owner:XUZHOU NORMAL UNIVERSITY

Multiple article injection molding system

Principal components of injection molding apparatus include a U-frame, a carrier plate remotely affixable to the U-frame, preferably two cavity blocks remotely affixable to the carrier plate, a corresponding pair of core blocks, and a hot runner assembly remotely affixable to rear faces of the core blocks. These components are placed in a hydraulic press. In a molding operation, the U-frame, carrier plate and cavity blocks move as a unit relative to the hot runner assembly and the core blocks affixed thereto. To quickly change out one or both block pairs, a subassembly comprising the carrier plate and all core and cavity blocks is remotely released from the U-frame and the hot runner assembly and is removed as a unit. Face clamps in the front face of the carrier plate, the rear face of the cavity blocks, the rear face of the core blocks and the front face of the cavity blocks speed the changeout process and obviate potential damage to the molding geometry. A hot runner nozzle cap seat in each core block has a rear-facing bevel which receives a beveled hot runner nozzle cap tip.
Owner:MACNEIL IP

Flat shunting mechanical control device with high-accurate positioning

The invention discloses a flat shuntingmechanical control device with high-accurate positioning. According to the flat shunting mechanical control device, a main control unit is correspondingly electrically connected with a radio frequency tag receive-and-send unit, a 400MHz digital radio receive-and-sent unit, a signal lamp display unit, a button display unit, a DSP digital audio modulation-demodulation unit, a storage unit, a USB communication unit, a camera unit, a bluetooth unit and a power supply unit. The radio frequency tag receive-and-sent unit receives activation signals of an annuciator in a switchyard, and identifies field intensity of the activation signals; and the main control unit controls the radio frequency tag receive-and-sent unit to send positioning information to a base station at an ultrahigh frequency of 1.2G. A source radio frequency tag is adopted by the flat shunting mechanical control device, and through rapid identification of the base station to the sourceradio frequency tag in the covered range, accurate locating geographical location information of the mechanical control device is obtained by the base station and is sent to a dispatching center, so that the function of accurately locating a shunting locomotive by the dispatching center is achieved, and location error can be controlled within 0.3-1 meter.
Owner:泉州市铁通电子设备有限公司

Voice and gesture auxiliary operation system convenient for the old to operate smart phone

The invention discloses a voice and gesture auxiliary operation system convenient for the old to operate a smart phone. The system comprises basic function modules and additional function modules. The basic function modules comprise phone function modules and short message function modules; the additional function modules comprise an emergency help calling module, a one-key time telling module and one-key electric quantity knowing module; the phone function modules comprises a call dialing module, a call answering module, a call rejection module and a missed call processing module; and the short message function modules comprise a short message checking module and a short message sending module. According to the system, the great vacancy of the market is made up to a certain extent; the possibility of using the smart phone at will by the old is provided; and the application enables the great old group to enjoy the convenience brought by the smart phone.
Owner:HENAN POLYTECHNIC UNIV

Multiple article injection molding system

Principal components of injection molding apparatus include a U-frame, a carrier plate remotely affixable to the U-frame, preferably two cavity blocks remotely affixable to the carrier plate, a corresponding pair of core blocks, and a hot runner assembly remotely affixable to rear faces of the core blocks. These components are placed in a hydraulic press. In a molding operation, the U-frame, carrier plate and cavity blocks move as a unit relative to the hot runner assembly and the core blocks affixed thereto. To quickly change out one or both block pairs, a subassembly comprising the carrier plate and all core and cavity blocks is remotely released from the U-frame and the hot runner assembly and is removed as a unit. Face clamps in the front face of the carrier plate, the rear face of the cavity blocks, the rear face of the core blocks and the front face of the cavity blocks speed the changeout process and obviate potential damage to the molding geometry. A hot runner nozzle cap seat in each core block has a rear-facing bevel which receives a beveled hot runner nozzle cap tip.
Owner:MACNEIL IP

Robot with 3D scanning function

The present invention provides a robot with a 3D scanning function. The 3D scanning function comprises a 3D scanner, a control module, a sensing module and an execution module; the 3D scanner and the sensing module collect external data information; the collected external data information is transmitted to the control module for processing the external data information; and after performing precise operation processing, the control module controls the execution module to perform a corresponding action. According to the robot with the 3D scanning function of the invention, the 3D scanner and the sensing module collect the data information, the control module processes the data information through using an SLAM algorithm, so that the robot has an accurate positioning and navigation function and can avoid obstacles, and thus, the robot has the advantages of high intelligence degree, high user friendliness and high practicability.
Owner:胡高鹏

A system for transferring samples and precisely positioning samples for a sample analysis device

A system for transferring samples to a sample analysis device and precisely positioning the samples relates to the technical field of sample analysis devices and aims to solve the problem of inaccurate positioning of sample containers and the inability to achieve two There are technical problems in the three aspects of fast switching positioning between individual sample racks and complex structures. The system includes a sample support strip, a conveyor belt device, a positioning mechanism and a movable mechanism; the positioning mechanism is set on the movable mechanism and has two states, one is the positioning state, which prevents the sample support strip from moving with the conveyor belt by touching the sample support strip , the other is the release state, which is withdrawn from the sample holder strip so that the sample holder strip returns to move with the conveyor belt, and the positioning mechanism can be switched between these two states; the movable mechanism is used to drive the positioning mechanism in a direction parallel to the conveyor belt Reciprocating motion for precise displacement. The system can be widely used in various existing sample analysis devices.
Owner:SHENZHEN YHLO BIOTECH

Mechanical arm on double-arm mechanical arm automatic line

The invention discloses a mechanical arm on a double-arm mechanical arm automatic line. The mechanical arm comprises the mechanical arm body arranged on the double-arm mechanical arm automatic line; the mechanical arm body is composed of a horizontal moving part and a vertical moving part; the horizontal moving part comprises a Y-axis base, the two ends of the Y-axis base are provided with a junction box and a cross beam cover respectively, one end of the Y-axis base is provided with a junction box connecting plate which is connected with the junction box through bolts, a wire passing hole isformed in the outer wall of the junction box, and the two sides of the wire passing hole are provided with a main body connecting plate and a drag chain supporting plate through bolts respectively; and the vertical moving part comprises a Z-axis base. The mechanical arm has the advantages that the mechanical arm moves on an X-axis of the automatic line while the displacement of the mechanical armin the Y-axis direction and the Z-axis direction is achieved through rotation of a rotating motor and a driving motor, and thus the operation space of the mechanical arm is larger, and the two requirements of positioning motion and workpiece clamping in a larger range can be met.
Owner:陕西久捷机器人有限公司

Positioning method, device and system based on magnetic field characteristic vector

ActiveCN111272168AExtended working hoursIt has the function of positioning and posture determinationAngle measurementNavigation instrumentsComputational physicsComputer vision
The invention provides a positioning method, device and system based on a magnetic field characteristic vector, and relates to the technical field of signal positioning. The positioning method based on the magnetic field characteristic vector comprises the following steps: acquiring characteristic vectors of a plurality of magnetic beacons at a target; determining the position of the target according to the feature vector; and determining an attitude angle of the target relative to the magnetic beacon according to the position of the target. The invention discloses a technical scheme, a low-frequency magnetic field characteristic vector is generated through a magnetic beacon, so that long working time is provided in complex environments with a large number of obstacles, such as underground, indoor and the like; the navigation service scheme has the advantages of simple structure, stability, no accumulation of position errors and target attitude errors, and irrelevance of navigation positioning results and target attitudes, and effectively improves the navigation capability in a complex environment.
Owner:HARBIN INST OF TECH

Assembly type bentonite stone wallboard and combined mounting method thereof

ActiveCN107268837APrecise positioning functionAccurate leveling and straightening functionWallsClimate change adaptationFloor slabArchitectural engineering
The invention discloses an assembly type bentonite stone wallboard and a combined mounting method thereof, and relates to the field of fixed buildings. The assembly type bentonite stone wallboard comprises a layer of panel and a plurality of layers of standard boards; the panel is arranged on the upper surface of a lower floor of a building; an upper floor of the building is in rigid connection with the standard board at the top end of a wall body; and the standard boards and the panel are in tenon-and-mortise connection, and every two adjacent layers of standard boards are also in tenon-and-mortise connection. The method comprises the steps that S1, a leveling-out layer and a leveling layer are laid and the panel is mounted; S2, the standard boards are assembled; and S3, a top rigid structure is connected, and combined mounting of the assembly type bentonite stone wallboard is finished. The precision of the appearance shape and size of the wallboard is strictly controlled, a pin lock and a pin hole have the precise positioning function, and tenons and mortises have the accurate leveling and straightening functions; and at the same time, the connection and construction methods with the building have multiple function features, the connection function is ensured, the precision is also ensured, and the optimal effect is generated through mutual restriction.
Owner:BEIJING TIANJI NEW MATERIALS

Device for clamping and locking inching switch

The invention relates to a device for clamping and locking an inching switch. The device for clamping and locking the inching switch comprises a workbench, a bracket, an electric cylinder and a mounting plate, wherein the workbench can be moved up and down in the Z direction, a guide rail is arranged on the workbench, the bracket is connected onto the guide rail of the workbench, the electric cylinder for providing power for the realization of an automatic compression effect is vertically connected with the mounting plate, a buffering mechanism of a pressing plate spring is arranged at the lower part of the electric cylinder, and a supporting plate on which a sample to be tested is placed is arranged on the mounting plate. Compared with the prior art, with the adoption of the device for clamping and locking the inching switch disclosed by the invention, the mounting problem of the sample of the inching switch is well solved, the sample is well compressed and buffered, and the surface of the sample is protected from being damaged, so that the automation degree of an experimental facility is greatly increased.
Owner:SHANGHAI UNIV OF ENG SCI

Protection system with stem-leaf-imitated structure

PendingCN113229912AEasy to compressReduced access incision sizeSurgeryForeign matterStructural engineering
The invention relates to the field of medical instruments, in particular to a protection system with a stem-leaf-imitated structure, the protection system with the stem-leaf-imitated structure at least comprises a blocking device, and the blocking device comprises an elastic framework and a filtering device connected to the framework; wherein the framework comprises at least two rhizomes, a supporting skeleton is arranged between the stems, the supporting skeleton is connected with all the stems, the stems and the supporting skeleton have shape memorability and anatomic form self-adaptability, and the filtering device can intercept foreign matters without influencing blood cell components and water passing; or the framework further comprises a plurality of branch rod structures, the branch rod structures have shape memorability and anatomic form self-adaptability, and the branch rod structures are distributed on the stems in a comb shape; when the blocking device is placed in a predetermined position, all the stems and / or the plurality of branch structures can form a convex surface, and when the blocking device comprises the branch structures, each branch structure is generally perpendicular to the whole stem in the axial direction or faces the far end.
Owner:NINGBO DIOCHANGE MEDICAL TECH CO LTD

A fully automatic integrated air column bag packaging machine

The invention discloses a full-automatic integrated air column bag packaging machine. The full-automatic integrated air column bag packaging machine comprises a rack, wherein a winding roller and a redirection roller are rotatably installed on the top of the rack, the winding roller is positioned on the front side of the redirection roller, the winding roller is parallel to the redirection roller, an air column bag clamp is installed on the lower part of the rack, the end of an air column bag bypasses the redirection roller and then is clamped by the air column bag clamp, a block pushing mechanism is installed on the front side of the rack, both the winding roller and the redirection roller are positioned above the block pushing mechanism, the block pushing mechanism is positioned above the air column bag clamp, a vertical pressing heat sealing device and a transverse pressing heat sealing cutting device are installed on the rear side of the rack, and the transverse pressing heat sealing cutting device is positioned between the redirection roller and the vertical pressing heat sealing device. The full-automatic integrated air column bag packaging machine has the advantages of reasonable structural design, rapidity and convenience in packaging, high packaging efficiency, stability and reliability in block pushing, attractive appearance and environmental friendliness of packaging materials, the problem of heavy workload caused by manual packaging is solved, an accurate positioning function is realized, and the system safety is increased.
Owner:XIAN UNIV OF SCI & TECH

Control method suitable for portable rotary table

ActiveCN111756289AQuick positioning functionSmooth positioning functionElectronic commutation motor controlVector control systemsMotor speedLow speed
The invention discloses a control method suitable for a portable rotary table. According to the control method, a high-precision encoder is driven to rotate through forward and reverse rotation of a motor, and a transmission dead zone is measured in a mode of acquiring and analyzing data of a Hall sensor and the high-precision encoder at a motor end. The high-precision encoder is combined with a reduction ratio to calculate the position of a motor rotor in real time, then the Hall sensor is used for accurately correcting the position of the motor rotor and judging whether the motor is locatedin a transmission dead zone or not so as to achieve dead zone compensation in control, and the control method has a positioning working mode and a speed working mode. In the positioning control mode,a variable stable point control algorithm is adopted in a system precision allowable range, and a quick, stable and accurate positioning function is realized. In the speed control mode, the robustnessof a high reduction ratio system is utilized, a difference angle control algorithm is adopted for a motor speed ring, and the system is guaranteed to be able to operate stably at a high speed and a low speed.
Owner:XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST

Positioning method, device and system based on inertial navigation

The invention provides a positioning method, device and system based on inertial navigation and relates to the technical field of signal positioning. The positioning method based on inertial navigation comprises the following steps of: acquiring the characteristic vector of a magnetic beacon at a target, acquiring the state output of an inertial navigation system, and determining the position of the target according to the state output and the characteristic vector; and determining a position error and an attitude error according to the position of the target, and adjusting the position and attitude of the inertial navigation system according to the position error and the attitude error. According to the technical schemes of the invention, the low-frequency magnetic field characteristic vector is generated through the magnetic beacon, so that a navigation service scheme with long working time, stability and positioning and attitude determination functions is provided in complex environments with a large number of obstacles, such as underground and indoor environments; and the position and attitude accumulation error of the inertial navigation system is corrected according to the characteristic that the error is not accumulated along with time, so that the system precision of integrated navigation is effectively improved.
Owner:HARBIN INST OF TECH
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