390results about How to "Drive fast" patented technology

An apparatus for measuring the coordinates of a point on the surface of an object comprises a projection system for projecting a beam of energy onto the surface of the object, a receiving system for receiving reflected beam energy from the target surface, and a detector for detecting the received energy. The projection system comprises a beam expander for expanding the width of the beam, and a focussing device for focussing the projected beam. The position of the reflected beam energy at the detector provides a measure of the range of the point on the target surface using triangulation and the direction of the projected beam provides the x and y coordinates. The focussing device can be controlled to vary the focal length of the projected beam and to control the beam size at the target object to vary the area of the target surface illuminated by the beam and thereby to control the resolution of the measurements.

The invention relates to a bionic antenna and thermal expansion based macroscopical-microcosmic driving rotary platform, and belongs to the precision driving field. A macro piezoelectric driving unit performs clockwise macroscopic driving for a columnar rotary body through enveloping type flexible hinges and the elastic deformation of bionic wedge-shaped antennas; a microcosmic thermal expansion driving unit generates controllable thermal expansion deformation in intermittent places of the bionic wedge-shaped antennas through thermal conduction of a high-temperature ceramic heating rod so as to further drive the antennas to perform micro linear displacement to realize the microcosmic driving of the columnar rotary body; the columnar rotary body is embedded in the rotary body of a ceramic ball bearing in an interference fit manner, and a rigid planar reflective plate is mounted in the groove of the rotary body in an embedding manner; and the rigid planar reflective plate is used for a non-contact type optical displacement measurement system to perform quantitative detection on the rotary deformation of the columnar rotary body. The macroscopical-microcosmic driving rotary platform has the advantages of compact structure and capability of satisfying the requirements of the fields, such as micro-nano operation, micro-nano machining, precision optics, spaceflight and medical engineering and the like, on the micro-nano-level precision driving and positioning.

Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes,

• • and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.

The application discloses a pixel circuit based on a double-gate transistor and a drive method thereof. In one embodiment, the pixel circuit comprises a light-emitting device OLED, a drive transistor T1, switch transistors T2-T5, a capacitor C1 and a capacitor C2; and the drive transistor T1 is a double-gate transistor and is used to drive the light-emitting device OLED to emit light. For the drive transistor in the pixel circuit of the application, the double-gate transistor is used to replace a single-gate transistor as a drive transistor in a traditional technology, a bottom gate of the double-gate transistor is used as the main gate, and then a top gate source voltage is used to adjust a threshold voltage of the drive transistor; and, because stability of a double-gate a-IGZO TFT is higher than stability of a single-gate device, the double-gate a-IGZO TFT can achieve threshold extraction and compensation and can achieve good display uniformity at the same time.

A milling head (16) for a milling machine (1) arranged for machining large-size workpieces comprises a fork 18, which is rotatably arranged around a first axis (C) and demonstrates a pair of fork arms (21, 22), which are separated from one another, a spindle device (23), which is arranged between the fork arms and rotatable around a second axis A, a first torque motor (42), which is coupled to the fork 18 for directly driving and controlling of the rotation of the fork around the first axis (C), and a second torque motor (57) for driving and controlling the rotation of the spindle around the second axis (A), said second torque motor being coupled to the spindle device (23) by means of a one-stage toothed gearing (61), which is mechanically clamped free of backlash. The configuration according to the invention is arranged to achieve high torque with high dynamic stiffness and small interference contour of the milling head (16).

A modular retaining wall with improved features is illustrated and described. Open or closed polygonal modules having channels disposed therein are set at least partially below a surface, said surface either being land-based or aqueous-based, and interfaces therebetween, e.g., shoreline, and attached to each other by respective fastening means which provide engaging connectivity between the modules.

A robot hand has a plurality of fingers including a contact sensing finger that senses contact with an object. A base provided with the fingers detects a resultant reaction force that is the combination of reaction forces from the fingers. When no resultant reaction force is detected, the plurality of fingers are moved toward the object, and when the contact sensing finger comes into contact with the object, a force that drives the fingers is switched to a force corresponding to a grasp force. When the contact sensing finger has not come into contact with the object but a resultant reaction force is detected, the driving of the fingers is terminated and the position of the base is corrected by moving the base in a direction in which the resultant reaction force having acted thereon is not detected any more.

A motor speed control device. The motor speed control device applied to a direct current (DC) fan includes a driving element constituted by a driving IC and Hall IC, a thermal sensor and a control element electrically connected between the driving element and the thermal sensor. The present invention utilizes a thermal sensor and a simple control element to effectively and stably control the variable speed of the fan within different temperature ranges.

The invention provides a composite mobile robot with wheel-track legs. The composite mobile robot comprises a frame, track arms, support legs and a wheeled elevating mechanism, wherein the track arms are connected with the frame through an inner shaft and an outer shaft, the four sets of the track arms are symmetrically distributed at four corners of the frame; the support legs are connected with the frame through a support leg transmission shaft, and the two support legs are symmetrically distributed in front of and behind the frame; the wheeled elevating mechanism is connected with the frame through a connecting plate, and is arranged at the middle part of the frame. According to the composite mobile robot disclosed by the invention, motors are used for driving the track arms, the support legs and the wheeled elevating mechanism to move, so that the robot has different postures, the composite motion manner of wheels, tracks and legs is realized, and the obstacle surmounting capacity is greatly improved.

A passively transformable wheel includes a wheel base including a centrally positioned transmitter rotation shaft and one or more passive leg rotation shafts positioned in the outer periphery; a force transmitter rotatably coupled to an end of the transmitter rotation shaft, the force transmitter including a trigger slide and one or more passive leg joints spaced apart from one another; a trigger leg arranged between the wheel base and the force transmitter and rotatably coupled to the trigger leg rotation shaft, the trigger leg including a trigger joint fitted to the trigger slide; and

• • one or more passive legs arranged between the wheel base and the force transmitter so as not to interfere with the trigger leg and rotatably coupled to the passive leg rotation shafts, the passive legs including one or more passive leg slides engaging with the passive leg joints of the force transmitter.

The present invention provides a torque-free robot arm, comprising: a base unit; and a first link in which one end is rotatably connected to the base unit to form a first joint as a rotary shaft horizontal to the ground and the center of gravity is separated from the first joint, wherein the first link includes one end arranged at the first joint, the other end arranged along the longitudinal direction of the first link, and a first counter balancer for compensating the gravity of the first link when the first link is rotated around the first joint.

A permanent magnet fixed to a peripheral portion of a lens cell includes two magnets that are joined together so that the north poles face each other and the south poles are exposed. A first driving coil is arranged to face toward exits for lines of magnetic force from the joining surfaces of the north poles of the permanent magnet, and a second driving coil is arranged to face toward entrances for lines of magnetic force in the permanent magnet. The orientation of the lens is adjusted by adjusting the currents supplied to the first driving coil and second driving coil to drive the lens cell in an optical axis direction and horizontal direction in a state in which the lens cell is levitated relative to the cover.

Embodiments for controlling cylinder air flow are provided. In one example, a method for controlling airflow into a cylinder of an engine comprises, if a previous cylinder airflow is different than a desired cylinder airflow, allocating flow into an intake manifold between a throttle and an EGR valve to provide the desired cylinder airflow while maintaining a desired EGR amount in the cylinder. In this way, transient air flow requests may be met without delay while maintaining desired cylinder EGR amounts.

An all-wheel drive with hybrid drive has an internal combustion engine (1), a first drive train (4) for a first driven axle (2), a second drive train (10) for a second driven axle (3), an electric machine (15) in the second drive train (10; 110), and a first clutch (20) upstream of the electric machine (15) and a second clutch (21) downstream of the electric machine (15). In order to improve all the electrical functions and to provide an all-wheel drive which meets all requirements, the electric machine (15) is composed of a stator (17) and of a rotor (18) which is connected to a first element (44) of a three-element planetary gear mechanism (19), whose second element (45) is connected to the first clutch (20) and whose third element (46) is connected to the second clutch (21).

The power tool includes a housing, an output shaft for fixing and driving a head to work, the output shaft being provided with a receiving portion extending out of the housing, a locking member for locking the head on the receiving portion of the output shaft, a fastener supported on the output shaft for fastening the locking member, and a driving mechanism rotatably displaced on the housing. The driving mechanism is operable to rotate along a first direction to make the fastener and the locking member screwed, and also is operable to rotate along a direction opposite to the first direction to loosen the fastener and the locking member. The power tool can assemble or disassemble the head quickly and provide a stable axial press to avoid the slippage of the head without any other auxiliary tools. Meanwhile, the operation method of the power tool is easy and reliable.

The present invention is directed to a cholesteric liquid crystal display that includes a homogeneous alignment surface effective to provide increased brightness, low focal conic reflectance and/or reflected light that is to a significant degree circularly polarized. The homogeneous alignment surface substantially homogeneously aligns the liquid crystal director adjacent thereto. The homogeneous alignment surface may be disposed on one or both sides of a cell of the display. In the case of a cell in which the homogeneous alignment surface is disposed on only one side, the substrate with the inhomogeneous alignment surface may be upstream or downstream of the substrate with the homogeneous alignment surface relative to a direction of incident light. Also included especially in the case of a cell that has the homogeneous alignment surface on both sides is the use of a polarizer to provide very good brightness and low focal conic reflectance. Such a cell may employ an alignment layer material with a high pretilt angle. A stacked display may be produced including at least one cell with at least one homogeneous alignment surface. In particular, a stacked cell display may include a lower cell with two homogeneous alignment surfaces and an upper cell in which the top side has an inhomogeneous alignment surface and the bottom side has a homogeneous alignment surface. The present invention achieves any one or combinations of the above features through the use of the homogeneous alignment surface produced with a predetermined alignment layer material and predetermined alignment conditions. The invention also includes a method of making the inventive display and the stacked inventive display.

An alternating unipolar carrier waveform is used to drive a pi-cell modulator. The pi-cell is driven by the carrier, but the carrier never changes polarity within the time period that the cell is energized. However, each time the cell is energized, i.e., once per field, the polarity alternates. Further, a burst of pulses each separated by a short rest period is used on initial application of power to more quickly drive the pi-cell to its activated state.

The invention discloses a towing vehicle capable of being used for both roads and rails. The towing vehicle capable of being used for both roads and rails can make full use of the weight of the entire vehicle, is good in driving stability, is high in speed, and has low requirements for sites. The towing vehicle capable of being used for both roads and rails comprises a vehicle frame, a front axle, a rear axle, a front towing mechanism, a rear towing mechanism, a front guide mechanism and a rear guide mechanism, wherein a front wheel is arranged on the front axle, a rear wheel is arranged on the rear axle, the vehicle frame is a hinged type vehicle frame, the hinged type vehicle frame comprises a front vehicle frame and a rear vehicle frame, the front vehicle frame is connected with the rear vehicle frame through a pin shaft, vehicle frame driving hydraulic cylinders are respectively arranged at two sides of the vehicle frames, two ends of each vehicle frame driving hydraulic cylinder are hinged to the front vehicle frame and the rear vehicle frame respectively, a revolution rail-getting-on device is arranged at the front end of the rear vehicle frame, the front wheel and the rear wheel are both of a double-tire structure, and the center distance of each inside tire is the same as the rail gauge. The towing vehicle capable of being used for both roads and rails adopts the hinged type vehicle frame, permits both the front axle and the rear axle to be provided with double tires, guarantees that the inside tire of the front axle and the inside tire of the rear axle are contacted with a rail when the towing vehicle drives on the rail, and achieves full-wheel driving.

There has been a trade-off between the rigidity and the mass of a movable section of a microactuator, and also between the rigidity of the movable section and the electrostatic force. A microactuator 100 includes: a base 1; a first comb electrode 2 supported by the base 1; a movable section 6 having a second comb electrode 8 opposing the first comb electrode 2, and at least one reinforcement rib 9 protruding toward the base 1; and an elastic supporting member 3 for supporting the movable section 6 so as to allow the movable section 6 to be displaced with respect to the base 1. The height of the second comb electrode 8 is different from the height of the at least one reinforcement rib 9.

A modular retaining wall is illustrated and described having open or closed polygonal modules with channels disposed therein. The wall is set at least partially below a surface, the surface either being land-based or aqueous-based, and interfaces therebetween, e.g., shoreline. The modules of the wall are fastened to each other by respective fastening means such that engaging connectivity is provided between the modules, yet retains the ability for fluid to pass through.

Disclosed are a method and apparatus for enabling a mobile terminal to drive a camera with low power. The mobile terminal applies power to an image sensor in response to a camera function execution request, initializes the image sensor, maintains the image sensor in a software standby state in which a streaming output of sensed data is interrupted, when a low power standby mode is set, and displays a null image on a display unit.

The invention relates to the technical field of a flight vehicle and particularly relates to a one-man flight vehicle capable of jetting at points of rotor blades. The flight vehicle comprises a flight vehicle body, a rotor system, a power system, an operation system, and an electric and flight control system, wherein the rotor system, the power system and the operation system are arranged on the flight vehicle body. The rotor system comprises blade shells and blades. The power system comprises an engine which is connected with a gas transmission pipeline and arranged above the blade shells, and the gas transmission pipeline is communicated with the blades. The operation system comprises an auto-bank unit and a control rod. The electric and flight control system comprises a battery and engine controller and a flight parameter meter. An oil tank for supplying fuel to the engine is arranged on the flight vehicle body. The one-man flight vehicle capable of jetting at the points of the rotor blades provided by the invention has the advantages of light and convenient structure and convenience for operation. The problem of centrifugal force caused by mounting the engine at the blade points is effectively removed. The defects of low speed and the like in the jet flight vehicle using a turbo fan engine are overcome with the adoption of rotors. The flight vehicle disclosed by the invention has the advantages of high driving speed, strong controllability of rotation, higher operation security and the like.