265 results about "Vertical control" patented technology

A control method of a two-wheeled self-balance vehicle comprises the steps as follows: (1), performing initialization: (2), reading values of a gyroscope, an accelerometer and a rotation angle sensor as well as the pulse number of an encoder respectively; (3), obtaining a vehicle body inclination, a handlebar turning angle, motor speeds and a vehicle speed; (4), then calculating PWM (pulse width modulation) values of vertical control, direction control and speed control respectively through a PID (proportion integration differentiation) control algorithm; (5), superposing the three PWM values together and outputting the three PWM values to left and right motors; (6), then sending data of the gyroscope, the accelerometer, the vehicle body inclination, a battery voltage, motor currents and the vehicle speed to an upper computer so as to monitor the operating status of the whole vehicle; (7), when the battery voltage is monitored to be smaller than a preset value, and the motor currents or the vehicle speed is monitored to be larger than the preset value through monitoring, turning on corresponding LED warning lights; and (8), when the vehicle body inclination is larger than a preset angle through monitoring when the vehicle body inclination is monitored to be larger than a preset angle, determining that the vehicle body falls down, stopping the operation and returning to an initializer. According to the control method, a more accurate operational method is adopted.

Various embodiments of the invention relate generally to systems for providing active vertical control of an airship. More particularly, at least one embodiment of the invention relates to a system for actively controlling the aerostatic lift of an airship by manipulating the ratio of air to lifting gas contained within the airship, and thus the overall mass of the airship. This manipulation is accomplished by actively compressing and/or decompressing the lifting gas or internal air, with the resulting pressure differential borne primarily by the hull and/or an internal pressure tank depending upon the configuration.

Multi-gate NOR flash thin-film transistor (TFT) string arrays (“multi-gate NOR string arrays”) are organized as stacks of horizontal active strips running parallel to the surface of a silicon substrate, with the TFTs in each stack being controlled by vertical local word-lines provided along one or both sidewalls of the stack of active strips. Each active strip includes at least a channel layer formed between two shared source or drain layers. Data storage in the TFTs of an active strip is provided by charge-storage elements provided between the active strip and the control gates provided by the adjacent local word-lines. Each active strip may provide TFTs that belong to one or two NOR strings, depending on whether one or both sides of the active strip are used.

In some embodiments, vertical controlled side chip connection for 3D processor package is presented. In this regard, an apparatus is introduced having a substrate, a substantially horizontal, in relation to the substrate, integrated circuit device coupled to the substrate, and a substantially vertical, in relation of the substrate, integrated circuit device coupled to the substrate and adjacent to one side of the substantially horizontal integrated circuit device. Other embodiments are also disclosed and claimed.

The invention relates to a horizontal and vertical coordination control method for trajectory tracking of an intelligent vehicle. For association and coupling characteristics of horizontal and vertical dynamics of the intelligent vehicle, a horizontal and vertical coordination controller for trajectory tracking of the intelligent vehicle is designed. By applying a model prediction control and sliding mode control algorithm, the opening degree of a throttle valve of an engine, the pressure of a main braking cylinder and the deflection angle of a front wheel are cooperatively controlled. In thedesign of a horizontal MPC, the state amount of the vehicle is selected at the formula which is shown in the description, and the state amount (vertical speed vx) is real-time changable vehicle speedoutput by the vehicle after vertical control; vy is a horizontal speed at the mass center of the vehicle; the formulas which are shown in the description are the heading angle and heading angle speedat the mass center of the vehicle; Y and X are a horizontal position and a vertical position under world coordinates. According to a horizontal and vertical coordination control system, the intelligent vehicle efficiently and stably tracks an expectation trajectory at the expected speed. Large-steering operation can be remarkably improved, and the horizontal stability of the intelligent vehicle inthe trajectory tracking process is improved.

The invention relates to a testing method for laying ballastless tracks in the early stage before overall completion of a super long tunnel. In the traditional tunnel construction method, a tunnel is dug in two directions both from the left cave and the right cave; and tracks are laid after the tunnel is finished; and the traditional construction method has the disadvantages of low construction progress, long construction period, low efficiency and risks of potential safety hazards. In the invention, multiple inclined shafts are arranged along the direction of a main cave; with the inclined shafts as a boundaries, the main cave construction is carried out in two directions by sections and the ballastless tracks are laid before the cave is dug through; a horizontal control network and a vertical control network are established to carry out measurement and data acquisition, the mathematical model of curve fitting is used to carry out centerline fitting so as to confirm the deviation between a through centerline and a theoretical centerline and carry out assessment to determine theoretical position of the centerline of sections dug through latterly; tracks of the through sections arelaid according to the fitted centerline, the sections under construction are measured and guided according to the fitted centerline to ensure that the centerline of the sections dug through latterly is consistent to the centerline of the sections with tracks laid. The method greatly accelerates construction progress and ensures smoothness and collinearity of the tracks laid in the early stage.

A variable gravity field simulator can be utilized to provide three dimensional simulations for simulated gravity fields selectively ranging from Moon, Mars, and micro-gravity environments and/or other selectable gravity fields. The gravity field simulator utilizes a horizontally moveable carriage with a cable extending from a hoist. The cable can be attached to a load which experiences the effects of the simulated gravity environment. The load can be a human being or robot that makes movements that induce swinging of the cable whereby a horizontal control system reduces swinging energy. A vertical control system uses a non-linear feedback filter to remove noise from a load sensor that is in the same frequency range as signals from the load sensor.

Apparatus and method for a steerable horizontal electric dipole source system for underwater deployment as a moving source in electromagnetic surveying of subsurface regions for hydrocarbons. Position locating sensors (195) are placed near each electrode (26, 27), and means (197, 198) are provided for correcting the electrodes to be at the same elevation with azimuth aligned with the source tow line (11) and the electrode mid-point positioned over the source tow line, based on instantaneous location information from the sensors. The streamer (28) connecting the electrodes may also be monitored for shape by sensors, with corrections made by lateral and vertical control means disclosed herein. The invention can be applied to any marine streamer used in geophysical surveys, including a towed streamer (191) of electromagnetic or seismic receivers (192).

My invention provides a spinner unit for attachment to the intermittently rotating vertical control unit shaft of an animal feeder, the feeder having a feed storage unit that discharges feed through a discharge tube into a spinner unit housing interior, where the feed is enclosed prior to discharge from specially configured discharge openings. The extensive covering configuration provided by the housing top, bottom and in some embodiments, sides, allows little or no feed to be thieved by small animals such as birds, prevents feed loss from wind, and prevents feed from being thrown up and off the spinner unit when the spinner unit is spinning.

A system for controlling yaw associated with an airship may include one or more vertical control surfaces associated with the airship, a first power source and a second power source, each configured to provide a thrust associated with the airship, and a yaw control configured to receive an input indicative of a desired yaw angle. The system may further include a controller communicatively connected to the yaw control, the one or more vertical control surfaces, and the first and second power sources. The controller may be configured to receive an output signal from the yaw control corresponding to the desired yaw angle and to generate a control signal configured to modify a state associated with at least one of the one or more vertical control surfaces, the first power source, and the second power source, such that the airship substantially attains the desired yaw angle.

The invention provides a high resolution image laser radar vertical control point extracting and auxiliary positioning method. The method has a core that high resolution remote sensing image vertical control points and image control points are extracted through combined treatment of height measurement laser radar data and high resolution image data and improvement of high resolution image positioning precision is realized through constructing a high resolution image positioning model having elevation restriction. According to the invention, with the support of the height measurement laser radar data, stereoscopic positioning precision of the high resolution remote sensing images and high resolution image mapping product precision are improved distinctively.

The invention discloses a laser altimeter vertical control point generating method in combination with a stereopair. The method comprises the steps that dense elevation point cloud data is obtained through a stereo camera; then point cloud data within a footprint is classified according to elevations, and the surface feature classification number at different elevations within a light spot is obtained; finally, large-spot laser radar waveform decomposition is guided through the classification number, and a generalized vertical control point is obtained. The aim of cooperative mapping of the stereo camera and satellite-borne laser radar is achieved, the result of three-dimensional positioning of a laser altimeter is combined with the mapping result of the stereo camera, and automatic extraction of the generalized vertical control point is achieved.

The present invention relates to a video-signal processing system, a video-signal processing apparatus and method, a recording medium, and a program for immediately recovering from loss of synchronization while encrypting/decrypting a video signal. An encryption processing unit 22 encrypts a frame number Tx, which has been obtained by counting vertical control pulses of a video signal, and transmits the frame number Tx together with an unencrypted frame number Tx and an H/V control pulse. A decryption processing unit 32 decrypts the encrypted frame number Tx so as to generate a frame number Rx and supplies the frame number Rx together with the frame number Tx and the vertical control pulses to a correcting unit 33. The correcting unit 33 generates a pseudo load pulse when the frame numbers Tx and Rx do not match with each other 16 consecutive times, and supplies the pseudo load pulse to the encryption processing unit 22 and the decryption processing unit 32. The present invention can be applied to a display device compatible with digital television.

The invention relates to a non-linear self-adaptive flight control method belonging to the technical field of near-space aircraft flight control. According to the invention, with regard to problems of indeterminate parameters in vertical control of near-space aircrafts, and with consideration given to advantages of sliding-mode control over non-linear system control and the feature that interval second-type fuzzy control with nondeterminacy fuzzy sets is especially suitable for solving problems of nondeterminacy, a second-type fuzzy control system is combined with sliding-mode control and self-adaptive control to design a flight controller to enable the flight controller to have better control performance. The stability and robustness of the near-space aircrafts are raised.

The invention discloses a precise control network measurement method of urban rails. The measurement method is characterized in that all SCPs A are buried in two side walls of urban rail transit structures to serve as permanent references. Through a total-station instrument and a measurement method of edge and corner intersection of free observation stations, each SCP has direction, distance and height difference observation data of four free observation stations, a line and slope regulating high-level control point is connected and measured about every other 300 m, and the measurement data are rigorously adjusted. Through the measurement method, the measurement precision of urban rail transit engineering construction can be effectively improved, a horizontal control network and a vertical control network can be combined and be permanently preserved, and the permanent references are provided for fine regulation, operation, maintenance and settlement monitoring of the rails in the later stage.

The invention relates to a vertical plane control method for underwater robot, and the method comprises the steps: depth cascade control and longitudinal inclination angle cascade control. The depth cascade control and the longitudinal inclination angle cascade control respectively employ two first-order active-disturbance-rejection controllers: an outer ring first-order active-disturbance-rejection controller and an inner first-order active-disturbance-rejection controller. The depth cascade control comprises the steps: enabling a depth to serve as a feedback signal, and transmitting the feedback signal to the outer ring first-order active-disturbance-rejection controller, enabling an output value to serve as a given value of a vertical speed control inner ring, and obtaining a vertical control force through the inner ring first-order active-disturbance-rejection controller. The longitudinal inclination angle cascade control comprises the steps: enabling a longitudinal inclination angle to serve as a feedback signal, transmitting the feedback signal to the outer ring first-order active-disturbance-rejection controller, enabling an output value to serve as a given value of a longitudinal inclination angle speed control inner ring, and obtaining a vertical control moment through the inner first-order active-disturbance-rejection controller. The vertical control force and the vertical control force moment are enabled to act on the underwater robot. The method can improve the anti-interference capability of the underwater robot, weakens the impact from hysteresis of control of the underwater robot in water, and achieves the quick and stable control of the underwater robot on a vertical plane.

The present disclosure relates to a non-volatile memory on a semiconductor substrate, comprising: a first memory cell comprising a floating-gate transistor and a select transistor having an embedded vertical control gate, a second memory cell comprising a floating-gate transistor and a select transistor having the same control gate as the select transistor of the first memory cell, a first bit line coupled to the floating-gate transistor of the first memory cell, and a second bit line coupled to the floating-gate transistor of the second memory cell.

A method for controlling a vertical control system of a vehicle with at least two vertical control devices that influence the driving stability of the vehicle, includes monitoring the functionality of the at least two vertical control devices, detecting a fault condition of a first vertical control device of the at least two vertical control devices, and adjusting the control parameters of at least a second vertical control device of the at least two vertical control devices for at least partially compensating of the fault condition of the first vertical control device.

The invention relates to sports equipment, and specifically provides dynamic balance multi-people cooperative double-board skating equipment, aiming at solving the problem of existing skating equipment which cannot achieve multi-people cooperative motion. For the purpose, the equipment comprises a first skate board, a second skate board, a vertical control rack, a motion transmission mechanism and a human body supporting mechanism; under an assembled state, the vertical control rack is located between the first skate board and the second skate board and the first skate board and the second skate board are mutually connected by virtue of the motion transmission mechanism, so that the relative position and postures of the first skate board and the second skate board are correspondingly inclined when the vertical control rack is inclined under stress, and various skating actions are achieved. Through the structures above, the skating equipment disclosed by the invention can achieve simultaneous operations on two sides of two-people or multi-people skating equipment, so that the interesting, the competitiveness and the motion artistic performance of skating motion are greatly improved.