Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1916results about How to "No interference" patented technology

Measuring device and measuring method for large three-dimensional morphology based on inertial navigation technology

The invention relates to a measuring device and a measuring method for large three-dimensional morphology based on an inertial navigation technology. The measuring device comprises a laser tracker, a portable handheld measuring terminal and a computer, wherein the portable handheld measuring terminal comprises a handheld support, a high-precision CCD (charge coupled device) camera is fixed at the upper part of the handheld support, an image processing and communication unit is positioned in the middle of the handheld support, a semiconductor laser projector is clamped at the lower part of the handheld support, an inertia navigation unit is clamped at the upper part of the handheld support, and the computer is connected with the communication unit and the laser tracker. According to the invention, the inertia navigation technology, the single-point tracking measuring technology of the laser tracker and the linear laser scanning technology are combined, the system can realize three-dimensional measurement in a measuring space which is 80m maximally, rigorous logicality is realized, the engineering is simple to realize, the precision is reliable, quick and high-precision acquisition of three-dimensional point cloud data of oversized workpieces can be realized without high cost on the basis of the existing laser tracker, and the measuring device and the measuring method have good economical usability.
Owner:XI AN JIAOTONG UNIV

Multi-lane motor vehicle tail gas detection system

The invention discloses a multi-lane motor vehicle tail gas detection system, which comprises a monitoring point processor and detection sub-systems in lanes. Each detection sub-system comprises a vehicle detection device, a tail gas detection device, a license plate detection device and a reflection zone. Each tail gas detection device comprises an infrared light emitter, an infrared light receiver, an infrared signal processing unit, an ultraviolet light emitter, an ultraviolet light receiver and an ultraviolet signal processing unit, wherein the infrared light emitter and the infrared light receiver are arranged in pair above the reflection zone and the ultraviolet light emitter and the ultraviolet light receiver are arranged in group above the reflection zone. Each tail gas detection device comprises a cradle head and an image acquisition device. Each vehicle detection device comprises a light emitter, a light receiver and a control unit, wherein the light emitter and the light receiver are arranged above the reflection zone. In the system disclosed by the invention, as the infrared rays and the ultraviolet rays in each lane are transmitted in directions which are perpendicular to each other approximately, the pollutant concentrations in tail gases of motor vehicles in the lanes can be detected at the same time without mutual interference, namely the pollutant concentrations in tail gases of motor vehicles in the lanes can be detected accurately at the same time.
Owner:UNIV OF SCI & TECH OF CHINA +1

Pure electric vehicle power assembly system

The invention relates to a pure electric vehicle power assembly system which solves the problems that in the prior art, one motor can not simultaneously meet the requirements on the vehicle accelerating performance and the maximum vehicle speed, and the increase of the power of the motor only depends on the increase of the volume of the motor, thereby increasing the quality and the performance parameters of the whole vehicle and increasing the manufacturing cost. The assembly system is arranged on a vehicle, is connected with a driving axle and mainly comprises two motors and power batteries, wherein the two motors comprise a high-speed motor and a low-speed motor; the high-speed motor is connected with the low-speed motor through a spline shaft; the high-speed motor and the low-speed motor are arranged coaxially; the low-speed motor is close to one end of the driving axle and is connected with the driving axle; the power output of the high-speed motor is transmitted to the driving axle through the low-speed motor; and the high-speed motor and the low-speed motor are respectively connected with motor controllers. By combining the high-speed motor and the low-speed motor, the applications in different working conditions, such as starting, low-speed operation, medium-speed operation, high-speed operation, climbing operation, braking operation and the like are realized. The combination of the two motors enables the motors to be always in the high-efficiency area, thereby improving the utilization ratio of the power energy and prolonging the continuously-driving distance.
Owner:万向电动汽车有限公司 +1

Method and device for precisely positioning large part of airplane in place

The invention discloses a method and a device for precisely positioning a large part of an airplane in place. The device is arranged in a transition part of connecting a positioner and the large part of the airplane; the positioner is a modularized unit which can realize motion in three mutual vertical directions and has high positioning precision and reliable work; through certain configuration, effective support and posture adjustment on the large part of the airplane can be formed. The device for precisely positioning the large part of the airplane in place has a positioner supporting plate; the bottom of the positioner supporting plate is provided with a sensor fixing bracket; the sensor fixing bracket is provided with four liner displacement sensors; the upper part of the positioner supporting plate is provided with a pressing plate; the top part of the pressing plate is provided with an emitter bracket; the emitter bracket is provided with a plurality of laser emitters; the inside of the positioner supporting plate is provided with a ball strut which is in interference fit and connection with an inner hole of the positioner supporting plate; the outer side of the positioner supporting plate is provided with a plurality of cylinders; and a piston rod of each cylinder is connected with a locking square cotter. The method and the device have simple operation, high positioning precision, good safety and reliable positioning algorithm.
Owner:ZHEJIANG UNIV

Mechanical double-overrunning clutch adaptive automatic transmission external motor drive axle

The invention discloses a mechanical double-overrunning clutch adaptive automatic transmission external motor drive axle. The drive axle comprises an axle shell, a drive motor is externally arranged,a transmission system is located in the axle shell and comprises a low gear transmission mechanism, a reverse gear transmission mechanism and an adaptive transmission assembly; the reverse gear mechanism has a transmission ratio I which transmits a reverse gear power from an auxiliary shaft to a main shaft, the low gear transmission mechanism has a transmission ration II which transmits a low gearpower from the auxiliary shaft to the main shaft, and the transmission ratio I is greater than or equal to the transmission ratio II. According to the mechanical double-overrunning clutch adaptive automatic transmission external motor drive axle, reasonable cooperation of two overrunning clutches is utilized, so that the overall structure is simple and compact, a transmission line is shared by reverse gear transmission, low gear transmission and fast gear transmission, and no interference is produced, the overall performance is ensured, the adaptive capacity is relatively strong, the cooperation with the adaptive automatic transmission mechanism is smooth and natural, the overall efficiency is improved, the whole transmission system is located in the axle shell, the overall structure is compact, the strength and rigidity of the whole axle is improved, and the occupying volume is small.
Owner:SOUTHWEST UNIVERSITY

Positioning information assistance-based massive multi-input multi-output beamforming method

InactiveCN105099534AReduce additional resource overheadReduce complexitySpatial transmit diversityTime delaysSystem capacity
The invention provides a positioning information assistance-based massive multi-input multi-output beamforming method. The objective of the invention is to solve the problem of high computational complexity in an existing massive multi-input multi-output beamforming method. The method includes the following steps that: (1) a user terminal obtains positioning information of the user terminal itself and sends the positioning information to a base station; (2) the base station obtains its own positioning information; (3) the base station calculates a direction of arrival according to the positioning information of the base station itself and the positioning information of the user terminal; and (4) the base station calculates beamforming vectors according to the direction of arrival. According to the positioning information assistance-based massive multi-input multi-output beamforming method of the invention, a massive MIMO (multi-input multi-output) beamforming method and positioning technologies are combined together, and therefore, the positioning information assistance-based massive multi-input multi-output beamforming method has the advantages of simple operation, small information feedback amount, short time delay, large system capacity and simple communication protocol, and can realize beamforming transmission of a massive MIMO system under an outdoor environment.
Owner:XIDIAN UNIV

Surface repairing and shaping device used for metal three-dimensional printing

The invention discloses a surface repairing and shaping device used for metal three-dimensional printing. The surface repairing and shaping device comprises a first omni-directional six-degree-of-freedom mechanical arm, an outer shell, a spatial scanning camera device, a processing workpiece, a workpiece lifting tray, a metal three-dimensional printing shaping device and a second omni-directional six-degree-of-freedom mechanical arm. The first omni-directional six-degree-of-freedom mechanical arm and the second omni-directional six-degree-of-freedom mechanical arm are symmetrically arranged on the inner wall of the outer shell. The metal three-dimensional printing shaping device and the spatial scanning camera device are arranged at the tail end positions of the first omni-directional six-degree-of-freedom mechanical arm and the second omni-directional six-degree-of-freedom mechanical arm respectively. The workpiece lifting tray is arranged at the bottom of the outer shell. The processing workpiece is arranged above the workpiece lifting tray. According to the surface repairing and shaping device, surface shaping can be carried out on molten metal during a three-dimensional printing process, and meanwhile by carrying out whole-process monitoring and shooting on the three-dimensional printing process, defect parts are recognized and recorded, and repairing is conducted by using metal three-dimensional printing.
Owner:CHANGZHOU INST OF ADVANCED MFG TECH

Global system for mobile communication (GSM) repeater and self-adaption interference cancellation method thereof

The invention discloses a global system for mobile communication (GSM) repeater and a self-adaption interference cancellation method thereof, comprising a donor antenna, an overlay antenna, a radio frequency module, a digital down-conversion module, a digital up-conversion module, a self-adaption interference cancellation module, a physical layer processing module and a high layer processing module. The physical layer processing module and the high layer processing module are connected with the self-adaption interference cancellation module through a parallel data line and a serial control line. The self-adaption interference cancellation module is respectively connected with the digital down-conversion module and the digital up-conversion module through a serial data and a control line. The radio frequency module is respectively connected with the digital down-conversion module and the digital up-conversion module through a SAM port, and the radio frequency module is connected with the donor antenna and the overlay antenna. In the invention, communication channels between a base station and a mobile station are detected, and narrow-band self-adaption interference cancellation algorithm is carried out on the communication channels, thereby the occurrence of self-excitation is reduced, interference among a plurality of repeater equipment can not occur, and the complexity of installation and debugging of equipment is simultaneously reduced.
Owner:XI AN JIAOTONG UNIV

Cable-controlled upper limb functional training robotic arm

The invention relates to a cable control type upper limb function training robot arm. An elbow joint is connected with a shoulder joint through an elbow joint U-shaped device; the shoulder joint is connected with a main rod by a shoulder joint U-shaped device and a scapula device; an elbow joint shaft passes through and is connected with the front part of a large arm rod in the elbow joint U-shaped device and is sleeved with an elbow joint roller which is fixedly connected with the elbow joint U-shaped device; a shoulder joint roller is connected in the shoulder joint U-shaped device; a shoulder joint shaft passes through and is connected with the scapula device and fixedly connected with an elbow joint large guide wheel; shoulder joint left-upper and right-upper guide wheels and shoulderjoint left-lower and right-lower guide wheels are arranged in the scapula device respectively; the scapula device is connected with a main rod frame through an intermediate main rod shaft; the main rod shaft is fixedly connected with a main rod roller; four main rod guide wheels are arranged at the rear end of the main rod frame respectively; and two main rod guide wheels are arranged at the lower end of the main rod frame. The cable control type upper limb function training robot arm can ensure that arms are far away from a motor so as to finish the movement that the motor drives a steel wire rope and then the steel wire rope drives various joints, and can also conveniently convert the functional rehabilitation training of left and right arms.
Owner:SUZHOU HAOBRO MEDICAL DEVICE

Mechanical double-overrunning clutch main shaft outputting adaptive automatic transmission high speed motor wheel chair hub

The invention discloses a mechanical double-overrunning clutch main shaft outputting adaptive automatic transmission high speed motor wheel chair hub. A reverse gear mechanism has a transmission ratioI which transmits a reverse gear power from an auxiliary shaft to a main shaft, a low gear transmission mechanism has a transmission ration II which transmits a low gear power from the auxiliary shaft to the main shaft, and the transmission ratio I is greater than or equal to the transmission ratio II. According to the mechanical double-overrunning clutch main shaft outputting adaptive automatictransmission high speed motor wheel chair hub, reasonable cooperation of two overrunning clutches is utilized, reasonable set of the transmission ratios are realized on the reverse gear structure andthe low gear mechanism, so that the overall structure is simple and compact, a transmission line is shared by reverse gear transmission, low gear transmission and fast gear transmission, and no interference is produced, the overall performance of the mechanical adaptive automatic transmission provided by the invention is ensured, the adaptive capacity is relatively strong, the cooperation with theadaptive automatic transmission mechanism is smooth and natural, the mechanical adaptive automatic transmission is applicable to the field of electric cars, meanwhile, a reducing input structure is utilized, the mechanical adaptive automatic transmission is suitable for power input of the high speed motor, and the overall efficiency is improved.
Owner:SOUTHWEST UNIV

Double-overrunning-clutch shaft sleeve output taper sleeve type self-adaptive automatic gear shifting spindle assembly

The invention discloses a double-overrunning-clutch shaft sleeve output taper sleeve type self-adaptive automatic gear shifting spindle assembly. The double-overrunning-clutch shaft sleeve output taper sleeve type self-adaptive automatic gear shifting spindle assembly comprises a spindle, a gear shifting system and a power output shaft sleeve, wherein the gear shifting system and the power outputshaft sleeve are arranged on the spindle. The gear shifting system comprises a low speed gear power input member, a reverse gear power input member and a self-adaptive gear shifting assembly; the reverse gear power input member has a transmission ratio I, the low speed gear power input member has a transmission ratio II, and the transmission ratio I is greater than or equal to the transmission ratio II; the double-overrunning-clutch shaft sleeve output taper sleeve type self-adaptive automatic gear shifting spindle assembly utilizes reasonable matching of two overrunning clutches, a reverse gear structure and a low speed gear mechanism reasonably set the transmission ratios, so that the overall structure is simple and compact, no interference occurs, the overall performance is ensured, thestability of the transmission is ensured, the shaft sleeve is used for outputting power, the output parts can be selected according to needs, and the double-overrunning-clutch shaft sleeve output taper sleeve type self-adaptive automatic gear shifting spindle assembly is not only suitable for the field of electric vehicles, but also suitable for other fields of variable torque mechanical transmission; and meanwhile, the shaft sleeve output can further ensure larger output torque.
Owner:SOUTHWEST UNIVERSITY

Electric locomotive roof assembly and welding tool

The invention relates to an electric locomotive roof assembly and welding tool, which comprises an integral frame, a gantry and a cylinder, wherein the integral frame consists of a reinforcing ribbed plate, a main beam, an edge beam, a bottom plate and a side wall board; the side wall board and the bottom plate form an inclination angle; a sliding track for mounting the gantry is arranged outside the side wall board; the gantry is provided with a movable cylinder fixing frame and is used for eliminating welding gap between an aluminum plate and the frame to guarantee welding quality; and the effect of reducing welding deformation is reduced by forming rigid fixing force for the aluminum plate and the frame. Side wall pressing cantilevers are uniformly distributed outside the edge beam; and the reinforcing ribbed plate is provided with a positioner connecting pipe. The interference between a product and the tool is eliminated in a movable pressing and fixed pressing combined mode, so that all products can be welded on the tool at one time. The working efficiency is increased. All positioning devices are used for quick and accurate positioning. The stability of the tool is effectively guaranteed, and the product quality requirements are met.
Owner:ZHUZHOU POWER LOCOMOTIVE PREUMATIC EQUIPOMENT

Planetary system output mechanical double-overrunning-clutch self-adaptive automatic speed change spindle assembly

The invention discloses a planetary system output mechanical double-overrunning-clutch self-adaptive automatic speed change spindle assembly. A planetary gear system is adopted for outputting power. Aspeed change system comprises a low-speed gear transmission mechanism, a reverse gear transmission mechanism and a self-adaptive speed change assembly. The reverse gear mechanism has a transmission ratio I for transmitting reverse gear power from an auxiliary shaft to a spindle, the low-speed gear transmission mechanism has a transmission ratio II for transmitting low-speed gear power from the auxiliary shaft to the spindle, and the transmission ratio I is larger than or equal to the transmission ratio II. Two overrunning clutches reasonably cooperate, the overall structure is simple and compact, reverse gear transmission, low-speed gear transmission and high-speed gear transmission share a transmission route and do not interfere in one another, the overall performance is guaranteed, highadaptability is achieved, cooperation with a self-adaptive automatic speed change mechanism is smooth and natural, planetary deceleration output is adopted, the output torque can be improved, a high-speed motor can be adopted as a power source, the overall efficiency is improved, and the spindle assembly is suitable for the field of electric vehicles and other torque-variable mechanical transmission fields.
Owner:SOUTHWEST UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products