1922results about How to "No interference" patented technology

The invention relates to a workbench with multiple degrees of freedom, which can move and rotate in multiple directions and is beneficial to overcoming of the disadvantage that the workbench in the prior art is of a fixed structure and can not move. The workbench comprises an elevator mechanism, a moving mechanism on a horizontal plane and a multi-angle rotating mechanism, wherein the elevator mechanism and the moving mechanism are of a lead screw moving mechanism, and the multi-angle rotating mechanism comprises a universal connection device and a locking mechanism. The moving mechanism can drive the workbench to move on the horizontal plane and ensure that the workbench can reach any positions on the horizontal plane within an effective range, and an X-directional moving mechanism and a Y-directional moving mechanism can operate independently or in a combined manner; the multi-angle rotating mechanism drives the surface of the workbench to incline; and the mechanisms are mutually combined to complete position change of the workbench surface.

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.

A backlight source for liquid crystal display device, comprising a plurality of light-emitting diodes, a light conducting board and a plurality of microlens, the light conducting board includes a plane of light incidence opposite the multiple light-emitting diodes, the multiple microlens are arranged between the multiple light-emitting diodes and the incidence plane, and the multiple light-emitting diodes and the light conducting board are positioned within the working distance on the two sides of the microlens.

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.

The invention discloses a biomass continuous pyrogenation carbonizing apparatus provided with a flexible screw conveying appliance, which comprises a motor (1), a coupling (3), bearings (4), a flexible screw spring (6), a pyrolysis tube (11), a feed inlet (5), a carbon discharging outlet (12) and a heating device; one end of the pyrolysis tube (11) is provided with the feed inlet (5) communicatedwith the inner cavity of the pyrolysis tube (11), and the other end is provided with the carbon discharging outlet (12) communicated with the inner cavity thereof; the inner cavity of the pyrolysis tube (11) is inserted with the flexible screw spring (6) along the axial direction; one end of the flexible screw spring (6) is connected with the output shaft of the motor (1) through the first bearing (4) and the coupling (3), and the other end is supported on the second bearing (4); and the outer side of the pyrolysis tube (11) is provided with the heating device for heating the pyrolysis tube (11). The biomass continuous pyrogenation carbonizing apparatus is easily suitable for long-distance convey and has simple structure.

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.

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.

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.

In the double-wire feeding arc welding method of the present invention, the first (leading) welding wire (11) and the second (backward) welding wire (12) that are insulated from each other are fed from the welding nozzle (6) at the front end of the welding torch, and the molten metal Welding the low-viscosity iron and steel materials, the welding current (Iw) is energized in the above-mentioned leading welding wire, and the arc (3) is generated to form a molten pool (21). The above-mentioned molten pool (21) under the pressure of the electric arc (3) is excavated to the raised position. Therefore, when welding iron and steel materials with low molten metal viscosity, a good bead shape without unevenness, undercut, and underfill can be obtained.

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.

The invention relates to a singlet state oxygen generation method, and belongs to the technical field of chemical oxygen-iodine lasers. The method comprises the following steps: mixing an alkaline ionic liquid insoluble in water with an aqueous hydrogen peroxide solution to form a two phase transfer system, and reacting the transferred ionic liquid phase with chlorine to generate singlet state oxygen in order to realize water and singlet state oxygen isolation. The method is helpful for reducing the quenching effect of water on singlet state oxygen, and reduces the content of water in the singlet state oxygen, and the alkaline ionic liquid has an enrichment effect on hydrogen peroxide to make effective solving of the bottleneck problem of hydrogen peroxide concentration restriction in the raw material regeneration process of chemical oxygen-iodine lasers under traditional technological conditions be possible, so the method is of great significance to improve the singlet state oxygen yield of the chemical oxygen-iodine lasers, reduce the water content of the singlet state oxygen and solve the raw material regeneration problem.

An auxiliary loading device for a bogie frame strength test belongs to the field of auxiliary loading devices for railway vehicle bogie frame strength tests and comprises four vertical torsion load loading seats, two vertical load loading seats, two groups of nut gaskets, transverse load loading units, four braking load loading sets, two snake-shaped swing resistant load loading seats, two gear box load loading seats, two longitudinal load and transverse restrain loading beams, two motor load loading seats, vertical restraint traction bases and two testing traction pull rods. The auxiliary loading device for the bogie frame strength test has the advantages that an original arrangement space is expanded through a plurality of force bearing load loading components with expanding structures, a bogie frame strength test needs not simplify the numbers of a stress loading points, the arrangement space among every application force driving component or force bearing component is sufficient, interference and conflicts cannot occur among the every application force driving component or force bearing component, and the testing results of a simulation bogie in a dynamic comprehensive force bearing state is more accurate and reliable.

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.

The invention relates to a shape-preserving foldable wing suitable for the occasions with the requirements of changing the pneumatic area of aircraft wings and saving the parking space. The foldable wing is composed of an inner wing section, an outer wing section and a shape-preserving rotation body. According to the layout design, the pneumatic continuity of the shape of the wing is effectively maintained in the folding process, and enough supporting rigidity can be provided. Thus, the shape-preserving foldable wing can meet the folding requirement when aircrafts are parked on the ground and can be folded by a specific angle according to the flight control requirements in the flying process.

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.

The invention provides a multivalent pneumococcal capsular polysaccharide composition as well as a preparation method and application thereof. The multivalent pneumococcal capsular polysaccharide composition contains a serotype 6A and at least one extra serotype selected from the group consisting of 1, 2, 3, 4, 5, 6B, 7F, 8, 9N, 10A, 11A, 12F, 14, 15B, 17F, 18C, 19A, 19F, 20, 22F, 23F and 33F. The multivalent pneumococcal capsular polysaccharide composition provided by the invention can be used for inducing an organism to generate humoral immunity, can generate a relatively good protecting effect for infectious diseases caused by the 24 common serotype pneumococcuses and is wide in immunity coverage rate and better in effect as comparison with various existing pneumococcal polysaccharide vaccines and conjugate vaccines sold on the market.

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.

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.

The invention discloses a dual-mode dual-standby terminal in which both a mode A non-access layer protocol stack and a mode B non-access layer protocol stack can access and update a Number 1 non-access layer information unit and a Number 2 non-access layer information unit, and also can perform a non-access layer processing to data flows and events of the Number 1 and the Number 2; both a mode A access layer protocol stack and a mode B access layer protocol stack can access and update a Number 1 access layer information unit and a Number 2 access layer information unit, and also can perform the access layer processing to the data flows and events of the Number 1 and the Number 2; besides, the mode A access layer protocol stack and the mode B access layer protocol stack can carry out information interaction. Switching between the modes can be accomplished by using the invention. Meanwhile, the invention also provides a method for switching between the modes of the dual-mode dual-standby terminal, and a single-mode dual-standby terminal.

The invention discloses a hexa-rotor aircraft, comprising a centre frame, six arms uniformly distributed at the periphery of the centre frame and a foot rest arranged below the centre frame, wherein a battery is arranged at the bottom surface of the centre frame, a holder is arranged below the centre frame, a camera is fixed on the holder, the front end of each arm is provided with a blade, and the front part of each arm is provided with a motor connected with the battery and located below a corresponding blade. The hexa-rotor aircraft provided by the invention can more easily realize horizontal and stable hovering in the process of flight; moreover, the aircraft employs electricity for a power system, so interference to an electric transmission line is not generated, the problem that a common aircraft cannot closely look over, monitor and shoot an electric transmission line is overcome, and the hexa-rotor aircraft has better security.

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.

The invention relates to a Pd @MIL-101 composite and a preparation method and application thereof. According to the adopted technical scheme, palladium chloride is added to methyl alcohol while sodium chloride is added, ultrasonic dispersion is conducted, stirring is conducted for 10-20 hours, and sodium tetrachloropalladate is obtained; a sodium tetrachloropalladate solution is dropwise added into MIL-101 crystals slowly, pd<2+>@MIL-101 is obtained; a methanol solution of asaturated sodium borohydride is added to the pd<2+>@MIL-101, reduction is conducted under the condition of ice-water bath, and the Pd @MIL-101 composite is obtained. The synthesized Pd @MIL-101 composite has special selectivity catalytic activity for phenylboronic acid and 1,4-dibromo-benzene in a suzuki reaction, and the yield of an intermediate product 4-bromobiphenyl is effectively raised.

A manufacture method of a latent heat recovery type heat exchanger. A plurality of heat absorbing snake pipes is provied in a body for flowing combustion discharging air. One end of the heat absorbing pipes is connected to an inflow assemble and the other end is connected to an outflow assemble so that the fluid to be heated can flow to the outflow assemble from the inflow assemble via the heat absorbing pipes. Thus, it is possible to manufacture a latent heat recovery type heat exchanger for recovering a latent heat in a cost as low as possible by coagulating the water vapour of the combustion discharging air outside the absorbing pipes and then recovering the latent heat. One and the other end of the plurality of the heat absorbing snake pipes are inserted into the inflow assemble (421), the outflow assemble (422), respectively, after assembled, an auxiliary assembling device is then thrown into a furnace to perform soldering in a furnace for soldering each end of the absorbing pipes (41) on the inflow assemble (421, 422). In addition, heat treatment is implemented in the furnace braze soldering process to remove the residual stress from the absorbing pipes (41).

Provided is a door handle device incorporated with an antenna that can prevent the magnetic flux produced from the electro-conductive members from impairing the performance of the antenna. The door handle device comprises an antenna coil 11 for external communication formed by winding copper wire and a circuit board 10 including a ground pattern 32 and detection electrode patterns 33 and 34 that are received in a door handle 5, and the ground pattern 32 and detection electrode patterns 33 and 34 are each provided with a plurality of slits 32S, 33S and 34S extending in parallel with an axial line A around which the antenna coil 11 is wound. The provision of the slits prevents generation of eddy current in each electro-conductive pattern which otherwise would interfere with the performance of the antenna.

The present invention discloses an on-chip parameter coplanar waveguide TRL calibration piece, relating to the technical field of a terahertz on-piece S parameter testing device. The calibration piece comprises a substrate layer. The material of the substrate layer is same with the substrate material of a tested piece. The upper surface of the substrate layer is provided with a direct access standard part, a reflection standard part and a transmission line standard part. The lower surface of the substrate is covered by a metal layer. The ground lines of the direct access standard part, the reflection standard part and the transmission line standard part go through the through holes of the substrate layer respectively to be connected to the metal layer. The probe end of the ground lines of the direct access standard part, the reflection standard part and the transmission line standard part are provided with an alignment marker. The calibration piece has the advantages of high calibration accuracy and simple operation, an error brought by de-embedding is avoided, and a device characteristic can be accurately represented.

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.

The invention discloses a micro-spectrometer based on microelectronic mechanical system technology (MEMS). It contains fiber connector, entrance slit, reflector, blazed grating, focusing mirror and detector etc. Reflector is made by MEMS, whose surface can do cycle motion controlled by external signal. Blazed grating is dispersion element, together with reflector to form spectroscopic light path system. In design of light path, after leading by fiber connecter, tested optical signal is split by reflector and blazed grating to monochromatic light with special wavelength, which is converged into detector by focusing mirror. Depending on cycle motion of reflector surface, monochromatic light with various wavelength enter detector to complete spectrum scanning. The spectrometer based on MEMS has merits of small capacity, extensive spectrum range and low cost etc.

The invention relates to a DMT (Discrete Multi-Tone)-based high-speed wire digital communication device. For aiming at providing a high-speed system which not only can improve the transmission speed of the current bus system, but also can be integrated with the original bus communication use, the invention adopts a technical scheme which is characterized in that a DMT-based transmission device of a high-speed 1553B communication bus comprises a parallel scrambling module, a RS (Reed-Solomon) coding module, a QAM (Quadrature Amplitude Modulatio) constellation labeling module, a block interleaver module, a pilot frequency insertion module, an IFFT (Inverse Fast Fourier Transform) module and a conjugate-symmetric transform module, a cyclic expansion module and a training symbol generating module which are serially connected in sequence by an FPGA (Field Programmable Gate Array). The DMT-based high-speed wire digital communication device is mainly applied to high-speed wire digital communication.

The invention relates to a manufacturing method of a double-anchor box type external node chord member. The double-anchor box type external node chord member is manufactured according to the steps of S1) blanking, S2) machining, S3) flat plate drilling, S4) web receiving and machining, S5) plate unit assembly welding and S6) chord member assembly welding. As nodes are mounted out of anchor boxes connected with stay cables on the chord member to avoid from the connecting places between the anchor boxes and the stay cables, the anchor boxes cannot be interfered with the nodes, the installation of the stay cables of a bridge and the welding of node plates are not mutually interfered, and the construction progress of the bridge is guaranteed.