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63results about How to "Compensate for positioning errors" patented technology

Master-slave mode multi-UUV (Unmanned Underwater Vehicle) cooperative location method based on underwater acoustic communication delay

The invention discloses a master-slave mode multi-UUV cooperative location method based on underwater acoustic communication delay, and relates to a cooperative location method. The method solves the problem of big location errors of a conventional master-slave mode multi-UUV cooperative location system, and comprises the following steps: the master and slave UUVs perform clock synchronization preparation, the master UUV measures the distance between the master UUV and the slave UUV through underwater acoustic ranging; the master UUV sends location information, spacing information and the time stamp during sending information all of the master UUV to the slave UUV through underwater acoustic equipment; delay duration of the underwater acoustic communication is calculated after the slave UUV receives the underwater acoustic of the master UUV, and the state equation of the cooperative location system is built; the slave UUV utilizes the state of the system to transfer the matrix, and the measurement equation of the cooperative location system is built; measurement update of the cooperative location system is completed through utilizing the measurement equation of the system; the state update of the cooperative location system is completed through utilizing the state equation of the system; the slave UUV compensates the state estimation errors. The method is suitable for the master-slave mode multi-UUV cooperative location.
Owner:HARBIN ENG UNIV

Automatic open and close multi-connected clamping device

The invention discloses a multi-linked clamp which can be automatically opened and closed, comprising a clamp beam, two ends of which are pivotally connected with a pulling rod respectively; each pulling rod is pivotally connected with a turning arm, the other end of the turning arm is pivotally connected with a connecting rod mechanism installation frame and a clamping jaw simultaneously; the clamp beam is connected with a heavy connecting rod by a hinge; the hinge hole where the upper end of the heavy connecting rod is pivotally connected with the clamp beam is a long round hinge hole with the aperture more than that of a pin shaft; the lower end of the heavy connecting rod is pivotally connected with an automatic unhooking device which can rotate by 90 degrees automatically after being pressed; the connecting rod mechanism installation frame of the self-gravity clamp is provided with a groove which is matched with the automatic unhooking device; the automatic unhooking device and the groove which are connected on the clamp beam and the connecting rod mechanism installation frame and matched with each other can automatically control the opening and closing of the clamping jaw of the self-gravity clamp when supporting carbon blocks; and the long round hinge hole at the upper end of the heavy connecting rod can be wholly lifted up with the connecting rod mechanism installation frame and the automatic unhooking device, thus compensating the horizontal position error of the clamped carbon blocks.
Owner:CHINA ALUMINUM INT ENG CORP

Magnetic resonance scanning method, system, device and storage medium

The invention provides a magnetic resonance scanning method, a system, a device and a storage medium. The method includes the following steps: generating a magnetic resonance radio-frequency pulse imaging sequence, and applying the magnetic resonance radio-frequency pulse imaging sequence to an imaging object to excite the imaging object at a radio frequency; collecting radio-frequency signal data generated by the imaging object according to the radio-frequency excitation; and implementing image reconstruction according to the radio-frequency signal data to form a magnetic resonance image, wherein, the magnetic resonance radio-frequency pulse imaging sequence includes at least one excitation pulse and a plurality of acquisition subsequences, and each acquisition subsequence contains a refocusing pulse and at least three readout gradient signals. The method, the system, the device and the storage medium disclosed by the invention significantly improve the imaging speed and the image quality.
Owner:SHANGHAI UNITED IMAGING HEALTHCARE

Light guiding element for a laser vehicle headlight

The invention relates to a light guiding element (1) for a laser vehicle headlight (2), wherein the laser vehicle headlight (2) comprises at least one laser light source (3) and at least one luminous element (4) which can be irradiated by the laser light source (3) and can thus be excited to emit visible light. The light guiding element (1) has a first side (10), which is designed at least partly as a light entrance surface (5), and a second side (20) arranged opposite the first side (10), said second side being designed at least partly as a light exit surface (6) and being assigned at least one receptacle (7) for at least one luminous element (4), wherein the light entrance surface (5) is assigned at least one first reflection region (50) which is oriented in the direction of the interior of the light guiding element (1) and reflects light from the light entrance surface (5) in the direction of the receptacle (7) for the luminous element (4), and wherein the light exit surface (6) is assigned at least one second reflection region (60) which is oriented in the direction of the interior of the light guiding element (1) and reflects light from the luminous element (4) in the direction of the light exit surface (6). The invention furthermore relates to a vehicle headlight (2) comprising at least one light guiding element of this type.
Owner:ZKW GRP GMBH

Rotary body surface robot grinding device and method

ActiveCN110549177AGain grinding efficiencyIncrease the number of stationsGrinding carriagesRevolution surface grinding machinesEngineeringContact force
The invention relates to a rotary body surface robot grinding and polishing device and method. According to the rotary body surface robot grinding and polishing device and method, a robot is used as an actuating mechanism to implement grinding. The device comprises the robot, softening devices, rotary pneumatic fixtures, a horizontal grinding machine and claw exchange devices. The grinding methodcomprises the following steps that S1, the robot grabs one ends of rotary bodies (workpieces) through the rotary pneumatic fixtures; S2, the robot are attached to the horizontal grinding machine according to the surface shapes of the rotary bodies, the rotary pneumatic fixtures rotate to conduct grinding on the surfaces of the rotary bodies, the grinding contact force is controlled through the softening devices, and position errors of the robot are compensated for; S3, the robot places the rotary bodies on the claw exchange devices, and the other ends of the rotary bodies are clamped through the rotary pneumatic fixtures after the claw exchange devices are turned over; and S4, the step S2 is repeated, and the remaining areas of the rotary bodies are subjected to grinding. The rotary body grinding method provided by the invention is simple, practical and applicable to surface grinding of rotary bodies such as metal cups, cylindrical containers and tube segments.
Owner:SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY

Flexible transporting and feeding and discharging device for robot

ActiveCN107344678ARandomly plan the movement pathImprove flexibilityConveyor partsAutomated guided vehicleMulti axis
The invention relates to an automatic transporting and feeding and discharging device for materials, in particular to a flexible transporting and feeding and discharging device for a robot. The flexible transporting and feeding and discharging device comprises an automatic guide vehicle, a multi-axis linkage robot, a grabbing mechanism and a vehicle body positioning tool. The multi-axis linkage robot and the vehicle body positioning tool are installed on the automatic guide vehicle. The output end of the multi-axis linkage robot is connected with the grabbing mechanism, and materials grabbed by the grabbing mechanism to the automatic guide vehicle are limited through the vehicle body positioning tool. The bottom of a vehicle body of the automatic guide vehicle is provided with a drive unit and multiple driven universal wheels, and the automatic guide vehicle moves in a reciprocating manner along a guide magnetic bar on the ground through driving by the driving unit. By means of the flexible transporting and feeding and discharging vehicle for the robot, the robot and the automatic guide vehicle are combined together, the flexible transporting and feeding and discharging vehicle is applied to the cargo carrying and feeding and discharging field, the system motion route can be planned at will, flexibility of the system is greatly improved, and the work range of the system is greatly enlarged.
Owner:QINGDAO SIASUN ROBOT & AUTOMATION CO LTD

Underwater electronic compartment

InactiveCN100554084CImprove sealingAchieve absolute sealingUnderwater equipmentSet screwEngineering
The invention relates to an underwater electronic cabin, which comprises a pressure-resistant casing and an electronic docking frame. The pressure-resistant shell is installed on the underwater carrier, and the electronic docking frame is installed inside the pressure-resistant shell. The pressure-resistant shell is that the connector end head and the top end head are positioned radially with the jacket respectively through the slit groove and the slit boss, and are connected together by the connecting ring, the first connecting flange and the second connecting flange. Structure; the debugging of electronic components and testing instruments on the electronic docking frame is realized through the additional debugging adapter frame assembly. The sealing of the pressure-resistant shell of the present invention is realized by the O-shaped sealing ring between the shell and the head through the pre-tightening of the set screw so that the O-shaped sealing ring produces a certain amount of deformation, and the sealing performance is reliable; the socket connection of the present invention The device is a movable structure, which makes the docking of the electronic docking frame easy to realize; the electronic docking frame of the present invention has the functions of radial positioning, axial positioning, and radial buffering; the present invention debugs the docking of the adapter frame and the docking plate assembly, System remote debugging can be realized.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Single-hole surgical device and medical equipment system

PendingCN113967054AHigh toleranceLittle change in production costsCannulasDiagnosticsSingle holeEngineering
The invention discloses a single-hole surgical device and a medical equipment system. The single-hole surgical device comprises a shell and at least one sheathing canal; the shell is tubular and comprises a horn mouth at the top and a shrink mouth at the bottom; one end of the sheathing canal extends into the shell and is communicated with the shrink mouth of the shell, and the other end of the sheathing canal extends out of the shell from the horn mouth; the sheathing canal comprises an inner sheathing canal section and an outer sheathing canal section; the inner sheathing canal section is located in the shell; the outer sheathing canal section is located outside the shell; and the outer sheathing canal section can deform; and deformation comprises deformation in the radial direction and / or the axial direction of the sheathing canal. The problem that the positioning precision of a moving arm is not enough due to machine control precision or other reasons is solved through partial structural improvement, higher permissibility is achieved for the position and angle of at least part of a medical tool entering a preset surgical site through the single-hole surgical device, and the production cost change is small.
Owner:BEIJING SURGERII TECH CO LTD

Patrol inspection device and use method thereof

PendingCN109217889AAvoid missingAccurate detection results at a certain pointTelevision system detailsChecking time patrolsInformation storageComputer module
The invention relates to the field of environmental detection, in particular to a patrol inspection device and a use method thereof. The device comprises a plurality of Bluetooth BEACOM devices and ahandheld terminal, wherein the handheld terminal is provided with an analyzer module, a CPU, a display, a power supply, an employee information memory and a task memory, and the CPU is connected witha Bluetooth 4.0 module; The analyzer module, the CPU and the display screen are all connected with the power supply, and the task memory and the employee information memory are all connected with theCPU. The patrol device of the invention can receive the detailed patrol task when the security personnel arrive at the specific area through the cooperation of the Bluetooth BEACOM equipment, the analyzer module, the Bluetooth 4.0 module, the CPU, the display, the power supply, the employee information memory and the task memory, so as to avoid the security personnel from omitting part of the patrol task.
Owner:青海华职康健康科技有限公司 +1

Light guide elements for laser automotive headlights

The invention relates to a light guide element ( 1 ) for a laser vehicle headlight ( 2 ), wherein the laser vehicle headlight ( 2 ) comprises at least one laser light source ( 3 ) and at least one irradiated by the laser light source ( 3 ) and thereby A light-emitting element (4) that can be excited for emitting visible light. The light guide element (1) has a first side surface (10), which is at least partially designed as a light entrance surface (5), and has a second side surface (20) opposite the first side surface (10), which is at least partially It is designed as a light exit surface (6) and at least one receiving body (7) for at least one light emitting element (4) is attached to it, wherein at least one alignment light guide element (1) is attached to the light entrance surface (5). The first reflection area ( 50 ) in the interior direction that reflects the light of the light incident surface ( 5 ) in the direction of the light-emitting element ( 4 ) containing body ( 7 ), wherein at least one alignment light guide element is attached to the light exit surface ( 6 ) (1) The second reflection area (60) in the inner direction, which reflects the light of the light-emitting element (4) in the direction of the light-emitting surface (6). The invention also relates to a motor vehicle headlight (2) having at least one such light-guiding element.
Owner:ZKW GRP GMBH
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