32results about How to "Improve consistency" patented technology

The invention discloses a limb training recovery device for a fracture patient. The limb training recovery device comprises a frame body, an air cylinder is installed on the frame body through a rotating shaft, a locking buckle is arranged at one end of the rotating shaft, a limb fixing plate is connected to the top end of a piston of the air cylinder through a buffering cushion, and a hinge is arranged in the middle of the limb fixing plate; a plurality of binding belts are arranged on the edge of the limb fixing plate; the buffering cushion comprises a rubber body, a cavity is formed in therubber body, a spring is longitudinally installed in the center of the cavity, and a plurality of rubber sheets making contact with one another are arranged on the edge of the cavity. Defects in the prior art can be overcome, and vibration is well absorbed and buffered while the cost is controlled.

The invention discloses automatic assembling equipment and method for a door lock shell assembly. The automatic assembling equipment comprises a shell assembling part, a shell feeding device, a rivet feeding device and a buffer block feeding device. The shell assembling part comprises an assembling linear sliding rail and a shell assembling plate; the assembling linear sliding rail is provided with a shell assembling station, a rivet pressing-in station and a buffer block pressing-in station which are sequentially arranged along the axis of the assembling linear sliding rail. A rivet hole lifting positioning pin and a shell stop block are arranged on the shell assembling plate; the shell feeding device comprises a shell supply mechanism, a shell positioning component and a shell feeding mechanism. The rivet feeding device comprises a rivet supply mechanism, a rivet cutting component, a rivet feeding and transferring component and a rivet pressing-in component. The buffer block feeding device comprises a buffer block supply mechanism, a buffer block feeding mechanism and a buffer block positioning and pressing-in mechanism. Automatic assembling of the door lock shell assembly can be achieved, labor is saved, the production efficiency is improved, the quality consistency of assembled products is guaranteed, and the production cost is reduced.

The invention relates to a horn antenna, in particular to an amplitude impedance calibrated three-dimensional package surface antenna which comprises a metalized vertical via feeder (1), a horn antenna (2) and metalized via holes (3), wherein the metalized vertical via feeder (1), the horn antenna (2) and the metalized via holes (3) are integrated on a dielectric substrate (4) which is arranged on the topside of a three-dimensional package (5). One end of the metalized vertical via feeder (1) is connected with an internal circuit (8), the horn antenna (2) comprises a bottom metal plane (6), a top metal plane (9) and metalized via side walls (11), a via array consisting of the metalized via holes (3) comprises a middle metalized via array (17), a left metalized via array (18) and a right metalized via array (19), four dielectric filling waveguides are formed in the horn antenna (2), and port wave impedance of the four dielectric filling waveguides on an antenna caliber surface (12) is equal to free space wave impedance. Antenna caliber efficiency can be improved while return loss is reduced.

The invention provides a polarimetric SAR image classification method based on feature attention and a feature improvement network. The polarimetric SAR image classification method mainly solves the problems that an existing polarimetric SAR image classification method based on deep learning is poor in intra-area consistency and inconvenient for end-to-end classification. The implementation schemecomprises the following steps of: 1) inputting a to-be-classified polarized SAR image and filtering the to-be-classified polarized SAR image; 2) synthesizing a pseudo color image and a classificationlabel of the polarized SAR image; 3) extracting initial features of the polarimetric SAR image and preprocessing the features; 4) respectively constructing an input representation layer, a feature attention sub-network, an encoder and a decoder, and sequentially connecting the input representation layer, the feature attention sub-network, the encoder and the decoder to form a feature attention and feature improvement network; 5) training fa eature attention and feature improvement network; 6) Inputting the polarization SAR image into the trained network to obtain the classification result. The polarimetric SAR image classification method is high in intra-area consistency, low in noise and high in classification precision, end-to-end learning and classification are realized, and the polarimetric SAR image classification method can be used for polarimetric SAR image classification.

The invention provides a micromechanical structure driving amplitude correction system and method. The micromechanical structure driving amplitude correction system comprises a C/V converter, an amplitude reading module, a frequency reading module, an amplitude correction module and an automatic gain module. The input end of the C/V converter is connected with the output end of a detection capacitor of the micromechanical structure. The amplitude reading module is used for outputting amplitude representation signals of electric signals at the input end, and the input end of the amplitude reading module is connected with the output end of the C/V converter; the frequency reading module is used for outputting frequency representation signals of electric signals at the input end, and the input end of the frequency reading module is connected with the output end of the C/V converter; the amplitude correction module is respectively connected with the output end of the amplitude reading module and the output end of the frequency reading module, and outputs an amplitude correction signal according to the amplitude representation signal and the frequency representation signal; the input end of the automatic gain module is connected with the output end of the amplitude correction module, and the output end of the automatic gain module is connected with the input end of the driving capacitor of the micromechanical structure.

The invention relates to the technical field of circuit board production, in particular to a multilayer printed circuit board and a preparation method thereof. The multilayer printed circuit board comprises two outer layer boards and prepregs, wherein the two outer layer boards are integrally pressed through the prepregs; an inner layer route pattern is arranged on one surface of each outer layer board, and a baseplate with an outer layer route pattern is arranged on the other surface of each outer layer board; the multilayer printed circuit board is prepared from the procedures of board cutting, inner layer pattern transferring, pressing, outer layer pattern transferring and the like in sequence. By the adoption of the outer layer boards with the inner layer patterns on one surfaces and integral copper-clad surfaces on the other surfaces to form an outer layer copper foil of the multilayer printed circuit board, the media between the outer layer copper foil and a secondary outer layer copper foil are uniform in thickness, the influence of the media on the outer layer of the multilayer printed circuit board on the impedance can be steadily controlled, and uniformity of the impedance in different regions of the same large board is improved; the structural features of the multilayer printed circuit board are matched with the specific pressing process parameters to reduce the swell-shrink characteristic of the multilayer printed circuit board.

The invention discloses a method for adjusting the inclination angle of light beams. The method comprises steps as follows: S1, the light beams are collimated by a collimating lens, and the divergenceangle of light rays in the collimated light beams is smaller; S2, the inclination angle of the collimated light beams is adjusted by an angle regulator. The angle consistency of the light beams is improved, the uniformity of the illumination field of view is improved, the operation is simple and the production efficiency is improved. The invention also discloses an illumination device for adjusting the inclination angle of the light beams. The illumination device comprises at least one illumination mechanism, wherein the illumination mechanism comprises a light source, the collimating lens and the angle regulator which are arranged in the light ray propagation direction, light beams emitted by the light source are adjusted by the collimating lens to become parallel light beams, then, thelight beams are adjusted by the angle adjuster, angle deflection of the light beams is realized, the light beams are irradiated to the surface of a to-be-detected panel, and the large-angle oblique incidence illumination effect is realized.

The invention discloses an all-angle luminous LED light source and a preparation method thereof. The LED light source comprises a bracket, a chip and a wavelength conversion layer; the bracket comprises a plane main body and two pins; the chip is fixedly arranged on the upper end face of the plane main body and is connected to the two pins through a bonding wire; the wavelength conversion layer is covered above the plane main body; therefore, the chip is packaged in the wavelength conversion layer; the two pins are respectively connected to the cathode and the anode of a power supply. A reflection cup is canceled; the chip is fixed on the plane main body; the activation angles of the light are greatly improved; the emission angles of the light are improved to about 250 degrees; the phenomena that the wavelength conversion layer covered on the chip is small in size and thin in thickness so that the aperture uniformity is poor and the color temperature deviates are solved; the uniformity of the apertures is improved; the shade is eliminated; and the color temperature is relatively even.

The invention provides a method for correcting the position of a solder ball for BGA package. The method comprises the following steps that: a BGA circuit is provided and a solder paste is printed ona bonding pad of the BGA circuit; a solder ball is placed on the solder paste printed on the BGA circuit; a position correction plate is provided, wherein a positioning hole array is formed on the position correction plate and the position distribution of the positioning holes corresponds to positions of solder balls needed by BGA package of the BGA circuit, the positioning holes include semi-circular holes that are formed below through holes and are communicated with through holes and through holes, the apertures of the through holes are smaller than the diameters of the solder balls, and theapertures of the semi-circular holes are larger than the diameters of the solder balls by 0.01mm to 0.02mm; the position correction plate is pasted on the solder balls on the BGA circuit in an aligned manner, wherein the semi-circular holes of the positioning holes fix the corresponding solder balls; and on the basis of the reflow soldering process, reflow soldering is carried out on the BGA circuit and the position correction plate together and then the position correction plate is separated.

The invention belongs to the technical field of computer control, and specifically relates to an embedded software interface design method with a shared memory. The majority of embedded software highly depends on hardware, so that relatively poor transportability of the software is caused consequently. For the embedded software, a major part of tasks is data interaction with the hardware, so that an effective method, which can perform unified management on interface data of the embedded software, becomes an urgently needed solution; by adoption of the embedded software interface design method, the embedded application layer software and hardware or a bus can be decoupled, so that the relation between the application layer software and hardware and an external bus can be decoupled; and meanwhile, the software interface data management and interaction efficiency are improved.

Disclosed is an automatic charging and discharging equilibrium device for a battery pack. A battery switching circuit (1) is connected with a charging and discharging current sensing and signal acquiring circuit (2), a control circuit (5) is connected with the battery switching circuit (1), an equilibrium charging circuit (3) and an equilibrium discharging circuit (4) to control charging and discharging equilibrium parameters of the equilibrium charging circuit (3) and the equilibrium discharging circuit (4), the equilibrium charging circuit (3) and the equilibrium discharging circuit (4) are connected with a battery through the charging and discharging current sensing and signal acquiring circuit (2), the charging and discharging current sensing and signal acquiring circuit (2) is connected with the control circuit (5), and power switch devices of the equilibrium charging circuit (3) and the equilibrium discharging circuit (4) are serially connected with the battery. A voltage signal of a sampling resister (R1) of the charging and discharging current sensing and signal acquiring circuit (2) enters the control circuit (5) to analyze and calculate charging and discharging current, so that PID (proportion integration differentiation) closed-loop equilibrium charging or discharging is controlled.

The invention discloses a coreless bottom line winding and shaping automatic all-in-one machine and a method thereof. The coreless bottom line winding and shaping automatic all-in-one machine is characterized in that the coreless bottom line winding and shaping automatic all-in-one machine comprises a machine frame, a bottom line pretreatment device, a main shaft winding device, a back-and-forth cycloid transmission device, a winding pressing plate constant force and trimming device, a winding pushing device, a bottom line shaping device and a discharging device, and the bottom line pretreatment device, the main shaft winding device, the back-and-forth cycloid transmission device, the winding pressing plate constant force and trimming device, the winding pushing device, the bottom line shaping device and the discharging device are arranged on the machine frame. The coreless bottom line winding and shaping all-in-one machine has the advantages that coreless bottom line winding and shaping can be carried out at the same time, and the coreless bottom line winding and shaping efficiency is high; a plurality of coils are arranged on the main shaft winding shaft at the same time, new coils are wound on the main shaft winding shaft efficiently at the beginning, and the production efficiency of the coreless bottom line coils is improved; a bobbin-free bottom line is fully automatically finished by the equipment from winding to shaping, so that full automation is realized, and manual operation errors are avoided; and the customer use cost is reduced, the winding machine and the shaping equipment are integrated and automatic, multi-station simultaneous operation can be realized, the fixed investment of the equipment is further reduced while the production efficiency is improved, and the customer use cost is greatly reduced.

The invention provides a method for manufacturing a plate-type integrated power battery module, comprising the following steps: Step 1, making a battery pack (200); Step 2, making a supercapacitor (300); Step 3, providing a control circuit module (100) , Internet of Things sensing module (400), satellite positioning module (500), wireless communication module (600) and mileage counter (700); step 4, battery pack (200), supercapacitor (300), Internet of Things sensing module ( 400), the satellite positioning module (500), the wireless communication module (600) and the mileage counter (700) are integrated and electrically connected with the control circuit module (100); step 5, providing the solar charging module (800), and connecting with the battery pack (200) Electrically connect to make a block-type integrated power battery module; step 6, connect the block-type integrated power battery module to the interface of the power supply battery.

The invention discloses an electro-pneumatic brake control device and a brake control system. The electro-pneumatic brake control device comprises a middle body and a control unit. The middle body comprises a mounting base and a pre-control chamber, and the control unit is communicated with the pre-control chamber; the control unit comprises a switch electromagnetic valve, a pneumatic plunger valve A, a relay valve and a pre-control chamber; the lower side space of a relay valve diaphragm plate is communicated with a train pipe; a port F of the pneumatic plunger valve A is communicated with aport C of the switch electromagnetic valve A; the switch electromagnetic valve is connected with a control module, and the control module is connected with a communication module. The beneficial effects of the invention are that: according to the scheme, the switch electromagnetic valve is used for executing electric control signals to enable the train pipe of the middle-rear vehicle of the trainto follow the front vehicle as soon as possible, the consistency of the change of the braking force of the train is improved, the impact force between vehicles in the train is reduced, damage to locomotives and lines in the train braking process is reduced, and the controllability and application safety of the train are improved.

An arrow insert with threaded stem for retaining an arrow tip preferably includes an arrow tip and an arrow insert. The arrow tip may be a broadhead. The arrow tip includes tip portion formed on one end and a threaded tap formed in an opposite end thereof. An O-ring counter bore is formed in the opposite end. The arrow insert preferably includes a barbed shank, an arrow shaft contact portion, an end flange, an arrow tip locator, at least one O-ring groove and a threaded stem. The barbed shank extends from one end of the arrow shaft contact portion. The end flange extends from an opposing end of the arrow shaft contact portion. The arrow tip locator extends from the end flange. The threaded stem extends from the arrow tip locator. The at least one O-ring groove is formed in the arrow tip locator.