250results about How to "Achieve high speed" patented technology

The invention provides a limit dynamic track tracking control system for an unmanned vehicle. The control system comprises a sensor module, a speed file solution module and a computing control module. The speed file solution module receives position parameters collected by the sensor module and reflects the position parameters on an expected track to obtain an ideal position; an expected longitudinal vehicle speed of the ideal position is solved and obtained; and motion parameters collected by the sensor module combined with the expected longitudinal vehicle speed are input into the computing control module to be processed to obtain a braking steering gear corner required by the whole vehicle and driving torque and a turning required steering gear corner required by a driving motor, and accordingly movement of the unmanned vehicle is controlled. Aiming at the problem of track tracking of a known path, the limit driving behavior of the unmanned vehicle can be realized, so that the track tracking process of the unmanned vehicle is completed with the quickest speed of the unmanned vehicle, and the great foundation effect is achieved for the high speed of the unmanned vehicle.

In compressed code processing of an image carried out by pipe lines for microblocks in parallel with each other, when coding subject blocks are compressed in code by a skip mode, etc. of the MPEG4AVC, moving vectors of adjacent blocks adjacent to the coding subject blocks are needed. There are some structures of pipe-line stages that do not determine the moving vectors, etc. of the adjacent blocks. This case is regarded as a problem to be solved that a compressed code processing cannot be carried out for coding subject blocks by the skip mode, etc. All moving information candidates of coding subject blocks are calculated for all moving information that previous blocks of the coding subject blocks can select, and the moving information corresponding to that determined for the previous blocks from the calculated moving information candidates after determining the previous moving information is deemed to be the moving information in the skip mode, etc. of the coding subject blocks.

The invention relates to the technology of information system safety engineering, in particular to an integral nonlinear mapping-based hash function constructing method. The method comprises the following steps of: (1) filling information; (2) setting a group of initial vectors and parameters; (3) performing non-linear segmental code word expansion of message packets; (4) using a coupling mapping system model to make the parallel mode blending iterative operation, and realizing the blending and dispersion of the expanded code words and the link variables; and (5) outputting a variable length hash. The hash function constructing method is mainly used in fields of digital certificates, electric signatures, password protection, digital integrity verification and the like, adopts the nonlinear segmental type code word expansion technology, speeds up the nonlinear dispersion degree of the code words, combines the integral nonlinear mapping and a logic function and has relative ideal blending and dispersing characteristics; the parallel iterative structure is used in the compression function of the method, so that the high-speed parallel realization of software and hardware can be realized conveniently; and the constructing method has high operating efficiency, and the hash function is easily modified, supplemented and maintained.

Optical deflector includes a movable mirror, a gimbal for rotatably supporting the movable mirror about a first rotational axis with a first support portion, and a frame for rotatably supporting the gimbal with a second support portion about a second rotational axis that forms an angle relative to the first rotational axis. A moving comb electrode is provided on the gimbal and has a surface extending approximately parallel to a direction of a rotational movement of the gimbal, and a stationary comb electrode is disposed facing the surface of the moving comb electrode. An electrostatic driving unit displaces the gimbal by an electrostatic force acting between the moving comb electrode and the stationary comb electrode. An electromagnetic driving unit displaces the movable mirror by an electromagnetic force.

In order to achieve high speed with a simple structure in a stretching machine that uses a ring-shaped link device composed of a plurality of equal-length link devices formed in the shape of a folding rule to stretch a sheet, in the stretching machine of the present invention, a There is a ring-shaped link device having a plurality of clamping devices holding the ends of the thermoplastic resin sheet at both side ends of the sheet. The rod device is driven by the sprocket on the entrance side of the sheet, guided by the guide rail arranged in a flared shape in the direction of travel, after the sheet is extended, the sheet is removed, driven by the sprocket on the exit side and returned to the entrance side sprocket, wherein a pair of radial bearings are provided on the outer peripheral portion of the bearing at the lowermost end of the connecting rod shaft of the connecting plate forming the folding ruler portion of the connecting rod device, and the radial bearings are arranged so as to Rolls on both sides of the guide rail that restricts the movement of the link unit.

PROBLEM TO BE SOLVED: To provide a transmission apparatus of a base station and a receiver of a mobile station in a cellular mobile communication system for solving a problem of difficulty in high speed data communication caused by deterioration in the communication quality due to an increase in the attenuation of a desired signal and also due to an increase in an interference signal quantity at a point apart from the base station. ŽSOLUTION: The cellular mobile communication system is provided with respective configurations of transmitting and receiving communication data in a first communication mode wherein a prescribed amount of the communication data is transmitted almost at a maximum communication speed, in a second communication mode wherein the prescribed amount of the communication data is divided and each of the communication data is transmitted with enhanced communication quality instead of a reduced communication speed, or in a third communication mode wherein the communication is carried out with only one base station like the case with the first or second communication mode without dividing the prescribed amount of the communication data and the data communication is carried out at a reduced communication speed with enhanced communication quality. the respective configurations select any of the communication modes according to a state of the communication environment, and carry out the transmission and the reception. Ž

A non-uniform-distribution pretightening-force-controllable high-speed main shaft based on a piezoelectric actuator and a control method thereof. A bearing (2) is mounted on the periphery of a main shaft (1), the bearing (2) is fixed through a bearing support (3), and a temperature sensor (7) is mounted on the bearing support (3). A pretightening ferrule (6) is mounted on the outer ring of the main shaft (1), and a piezoelectric actuator (9) is mounted on the pretightening ferrule (6) through a mounting hole provided in the pretightening ferrule (6). A signal processing unit is connected between the piezoelectric actuator (9) and the temperature sensor (7), and the mounting position of the temperature sensor (7) is closed to the pretightening regulation and control point of the main shaft. After the temperature sensor (7) detects a temperature signal of the pretightening regulation and control point of the main shaft, the temperature signal is processed by the signal processing unit, and the pretightening force of the main shaft is adjusted by adjusting the pressure of the piezoelectric actuator (9). The high-performance high-speed main shaft under different working conditions is obtained by performing on-line regulation and control on the non-uniformly distributed pretightening force of the supporting bearing (2) of the main shaft.

The invention discloses a high-speed high-voltage level conversion circuit applied to a GaN gate drive. The high-speed high-voltage level conversion circuit comprises an input circuit, a first PMOS (P-channel Metal Oxide Semiconductor) transistor, a level conversion circuit and a shaping circuit, wherein a first end of the input circuit is connected to a first end of the level conversion circuit at a first node; a second end of the input circuit is connected to a drain electrode of the first PMOS transistor at a second node; a gate electrode of the first PMOS transistor is connected to a firstpower line; a source electrode of the first PMOS transistor is connected to a second end of the level conversion circuit at a third node; the level conversion circuit is connected to a second power line; a second end of the level conversion circuit is connected to an input end of the shaping circuit at the third node; the shaping circuit is connected to the first power line and the second power line; an output end of the shaping circuit is connected to a first end of a power device at a fourth node; and the power device is connected to the first power line and the third power line.

The invention discloses a flying saucer and two smoke- and fire-free engines. The flying saucer is composed of a cabin and a disk which rotates round the cabin. The disk includes a disk-shaped wing and a rotary engine. The cabin includes a driving cabin, a passenger cabin and a device cabin. The rotary engine sucks air which is mixed with water, and then the mixture is jetted out horizontally through jet tubes installed on the edge of the disk according to the sprayer principle, so that a generated reactive force enables the disk to rotate at a high speed, thereby generating an upward raising force on the disk. Four fixing wings are installed outside the device cabin to eliminate reverse rotation of the cabin. A vector engine and a diesel power generating set are installed in the device cabin under the disk. The vector engine sucks large amount of air through an air inlet duct in the passenger cabin to form vacuum above the passenger cabin, which enables air pressure difference between an upper surface and a lower surface of the disk to be increased, thereby generating a huge raising force. The sucked air is compressed to form high-pressure gas which is discharged into vector jet tubes and is jetted out, wherein the directions and the angles of the vector jet tubes are adjustable to generate pushing forces in different directions, thereby achieving maneuvering flight of the flying saucer.

Disclosed is a parallel mechanism that performs driving with at least four degrees of freedom and is capable of achieving high speed and high precision. Four rotation armatures (31-34) arranged on a fixed plate (1) drive completely in parallel and with four degrees of freedom a movable plate (2) via four peripheral drive mechanisms (41-44) having upper arms (411, 421, 431, 441) integrated with rotors of the rotation actuators (31-34), lower arms (412, 422, 432, 442) configured from parallel links, upper joints (413, 423, 433, 443) which link the upper arms and lower arms, and lower joints (414, 424, 434, 444) which link the lower arms and the movable plate (2). Two lower joints (414, 434) of the four lower joints are both configured from a revolute pair with two degrees of freedom having two joint axes that are orthogonal to one another.

A diode grabbing manipulator is mainly composed of a left-right transplanting part, a lifting part, a one-dimensional slide table mechanism and a manipulator tail end execution mechanism (paw). According to the diode grabbing manipulator, the pneumatic technology, the servo technology and the vacuum technology are adopted, the structure is compact, suction and assembly of diodes of different ignition coils can be achieved, the high speed orientation and automation of ignition coil assembly are achieved, the diode grabbing manipulator is clean and free of pollution, and the surfaces of the diodes are not damaged.

The invention discloses a display panel drive method, a display drive circuit and a display device. After a data drive chip receives the image to be displayed transmitted by a graphic processor, all rows of sub-pixels including a high-definition display area in the connected display panel are controlled to perform scanning row by row according to the position of the high-definition display area inthe image to be displayed so as to meet clear imaging display of the high-definition display area; meanwhile, the data drive chip controls all rows of sub-pixels only including a low-definition display area in the display panel to perform simultaneous scanning of N rows according to the position of the low-definition display area in the image to be displayed, wherein N is an even number greater than 1 so that the number of the overall scanning rows displayed by each frame can be effectively reduced and the scanning time of each frame can be saved; and the charging time of the display panel can be increased under the condition of the same scanning time of each frame and thus the display requirements of high speed and low power consumption can be realized.

The present invention provides a variable stroke engine in which there is a pivot shaft which is rotatable around an eccentric axis parallel to the crankshaft and which is freely rotatably supported on the crankcase and at the same time connected to a control rod In this variable stroke engine, the camshaft (36) and The pivot (55) is linked and connected. Therefore, the number of components of the valve train can be reduced, and at the same time, the rotation speed can be increased, and the mechanical noise can be reduced.

The invention provides a substrate supporting mechanism which can achieve high speed conveyance of a substrate while ensuring proper conveyance operation. In the substrate supporting mechanism,a holding portion (15) made of carbon nano tubes is installed on the supporting surface (14a) of an end effector (14), and a substrate (W) is supported by the distal ends of the carbon nano tubes. An intermolecular force is generated between the substrate and the carbon nano tube and the substrate is supported with a fixed suction force to the supporting surface. The suction force is generated both in the atmosphere and in the vacuum and a bigger force is obtained for a larger number of carbon nano tubes perunit area. With such an arrangement, slip of a conveyance article on the supporting surface can be suppressed effectively and high speed conveyance of a substrate can be attained. Since the carbon nano tube is excellent in heat resistance, poor conveyance due to deterioration or sticking of the holding portion by heat is prevented during use under high temperature environment and proper conveyance operation of substrate can be ensured.

The invention discloses a method for manufacturing a dictionary, a handwriting input method and equipment. The method for manufacturing the dictionary can predict a character input by strokes so as to relieve the burden of a user. The method comprises the following steps: the feature of the integral character of an integral character sample of characters and the feature of partial strokes of a partial stroke sample of the characters with the number of the strokes larger than a preset value are extracted; and a learning algorithm by a machine is used to carry out learning to the feature of the integral character and the feature of the partial strokes to generate an integral character template and/or a partial stroke template of the characters, which are used as items of the dictionary. The system has the advantages of simple structure, low hardware requirement, rapid identification speed, high identification rate, and so on, and can be realized in an embedded type system and so on.

A sharp corner judgment means judges as to whether a corner of cut shape in a workpiece is a sharp corner is not on the basis of a machining program. When the corner is regarded as the sharp corner, an additional locus producing means for producing sharp corner produces an additional locus for producing sharp corner when machining on the corner regarded as the sharp corner, and a sharp corner machining execution means executes machining on the corner on the basis of the produced additional locus for producing sharp corner. Then, the additional locus for producing sharp corner can be automatically produced for the sharp corner so as to execute machining.

The invention provides a sewing machine that can realize high-speed needle rotation, wherein the sewing machine comprises a needle rod (12) that holds a needle (11); a needle rod rotation platform (31) that can move up and down to support the needle rod, and is supported on the sewing machine frame by rotating together with the needle rod around a centre line (C); a needle up-and-down move mechanism (20) that is connected with the needle rob and moves the needle rod up and down; a needle rotating motor (32) as a power for driving the needle rod rotate; and a scale (14) that pulls a thread. The needle rod rotation platform (31) can support part of the needle rod by moving up and down. The needle up-and-down move mechanism (20) is connected to the needle rod when the needle up-and-down move mechanism doesn't coincide with part of the needle rod supported by the needle rod rotation platform.

The invention discloses a cantilever-type lifting medical stretcher which comprises a bed stand, a lifting frame and a lead screw feeding mechanism. Casters are arranged at four bottom corners of the bed stand, a support frame is arranged on one side of the bed stand, a cantilever connected with the lifting frame is arranged on the upper portion of the support frame, a sleeve connected with the lifting frame is arranged in the middle of the support frame, the lifting frame is provided with a power mechanism, the lead screw feeding mechanism is positioned in the front of the lifting frame, and the front end of the lead screw feeding mechanism is connected with a bed board. The lifting frame together with the sleeve can vertically move along the supporting frame and is applicable to sickbeds with different heights, and the lead screw feeding mechanism can effectively advance and draw back the bed board. By the aid of the cantilever-type lifting medical stretcher, a patient can be effectively shifted to another bed and transferred, the pain of the patient is relieved, and the working pressure of medical workers is relieved. The cantilever-type lifting medical stretcher is unique in creation, convenient to use and easy to popularize.

A memory system includes a first memory that is used as a main memory of a target device, a second memory that has an access speed lower than that of the first memory, a securing section that secures a predetermined area of the first memory as a temporary storage area of the second memory, and a memory control section that receives an instruction to write data into the second memory, temporarily stores the data into the first memory and also transfers the stored data from the first memory to the second memory.

The present invention relates to a receipt data verification support device capable of correctly and efficiently verifying receipts and turnover data collected from shops of lessees, in order to achieve high speed and efficiency for lessee turnover management. When a business owner verifies numerical number of each turnover management project which is needed by the turnover management and input through hands or character recognition of the receipts with content of the actual receipts, a receipt image data processing part (11) cuts an image used for calculating the original receipt into one or more receipt project image parts corresponding to the turnover management project in a row direction according to the each turnover management project needing to be verified, a turnover verification image editing part (16) is used for making a turnover verification image, the image is displayed in a display device (2), the turnover verification image realigns the numerical numbers of the each turnover management project of the verified object and the images of the receipt project cut by the receipt image data processing part (11) according to order of the turnover management projects.

The invention relates to a double-channel analog/digital (A/D) combined variable gain data acquisition device. The device comprises a primary amplifying and conditioning circuit, two parallel amplifying circuits, an A/D conversion module and a digital control module, wherein the output ends of the primary amplifying and conditioning circuit are separately connected with the input ends of the two parallel programmable amplifiers in a two-way parallel programmable amplifier circuit; the output ends of the two parallel programmable amplifiers are separately connected with the corresponding inputchannels of the A/D conversion module; the A/D conversion module is connected with the digital control module; and the digital control module reads the sampling value which is through A/D conversion and sends a control signal to control the A/D conversion process and change the gains of the programmable amplifiers. The acquisition device can be used to increase the dynamic range and span of measurement, ensure the sampling accuracy of weak signals and large-range signals and realize high-speed and high-accuracy data acquisition; and the method is more suitable for the detection of the analog of which size is unknown and variation range is wider.