2206results about How to "Adjustable speed" patented technology

A touch-sensitive device accepts single-touch and multi-touch input representing gestures, and is able to changing a parameter of a gesture responsive to introduction or removal of a point of contact while the gesture is in progress. The operation associated with the gesture, such as a manipulation of an on-screen object, changes in a predictable manner if the user introduces or removes a contact point while the gesture is in progress. The overall nature of the operation being performed does not change, but a parameter of the operation can change. In various embodiments, each time a contact point is added or removed, the system and method of the present invention resets the relationship between the contact point locations and the operation being performed, in such a manner as to avoid or minimize discontinuities in the operation. In this manner, the invention avoids sudden or unpredictable changes to an object being manipulated.

A dynamic and synchronized real-time captioning system and method for streaming media. A streaming encoder module can provide a code injection to marry textual data and audio/video (AV) data in order to form a text and/or audio stream. A streaming control module can allow an end-user to specify font format utilized to embed into an AV stream. A delay enhancement tool can be adapted to adjust speed of the text and/or audio stream, which allows the end-user to receive the text and/or audio stream at a proper speed. A customized graphical user interface (CGUI) can be adapted to assist with streaming administration to provide an encoding option, caption source location, delay control and slide control. Therefore, the captioning system can be able to synchronize and deliver the textual data and the AV data for live media streaming at an end-user's system.

A high bandwidth DRAM is provided with two separate bus networks connecting the DRAM to a processor. One bus network is a high speed (e.g., 500 MHZ) 8:1 or 16:1 multiplexed I/O bus and the second is a slower (e.g., 64-bit) bus. The high-speed bus is used for example for graphic intensive applications which require fast access to large numbers of bits in the DRAM memory array. This of course results in higher power requirements. Since, not all applications require such large amounts of data to be transferred between the DRAM and the processor, the slower bus is provided for these less demanding applications such as word processors, spreadsheets, and the like. The slower bus requires less power to operate and therefore results in a power saving mode which, among other things, facilitates longer battery life.

The invention relates to a communication system comprising a first and a second communication device, each comprising transmit and receive units for establishing a wireless link between the devices, wherein the first device is a portable listening device. The invention further relates to a method, a data processing system and a medium. The object of the present invention is to control power consumption in a short range wireless link. The problem is solved in that at least the first communication device comprises a control unit for dynamically adjusting the transmit power of its transmit unit based on a measure of the quality of the link, wherein the system is adapted to use the dynamic transmit power regulation to implement a partial power-down mode of the system, when the two communication devices are expected NOT to be in a normal use, wherein the partial power-down mode at least comprises a power-down of the components related to the wireless link. This has the advantage of enabling an adaptation of the power consumption to the current needs. The invention may e.g. be used for wireless communication between (portable) low power devices, e.g. between a pair of hearing instruments.

The invention discloses a new intelligent motor battery control system. Based on the former connection of the storage battery, the motor and the controller of electric truck/ battery motor vehicle/electric bicycle, a management system is added for the storage battery, and the motor is internally provided with a state monitoring and communication control module; at the same time, the controller is also additionally provided with a storage battery management system and a motor communication control module. The structure, integrating the storage battery, the motor and the controller, takes advantages of the best control proposal of the control to maximum the service life of the storage battery, providing most electric energy discharging for once; meanwhile, the control proposal, which is designed according to the motor characteristics, promises the motor to optimize the operation on the high efficiency platform. Without changing to the vehicle structure of the former electric truck/ battery motor vehicle/electric bicycle, the system can conveniently and efficiently combine the storage battery, the motor and the controller, thereby improving the energy utilization efficiency of the electric truck/ battery motor vehicle/electric bicycle; moreover, with characteristic of extensive application, and as the rising demand to the electric vehicles nationwide, bringing great yearly demand, the system possesses extremely large social and economic benefits.

The asphalt tamper includes a tamper plate connected to a reciprocating rod that oscillates inside of a protective sleeve, wherein the reciprocating rod abuts a cam that rotates about the output of a motor. The reciprocating rod has a shoulder that interacts with a spring that applies a biasing force ushering the reciprocating rod back and forth upon interaction with the rotating cam.

There is provided methods, apparatuses and computer program products for image processing in which a pair of images may be downsampled to lower resolution pair of images and further to obtain a disparity image representing estimated disparity between at least a subset of pixels in the pair of images. A confidence of the disparity estimation may be obtained and inserted into a confidence map. The disparity image and the confidence map may be filtered jointly to obtain a filtered disparity image and a filtered confidence map by using a spatial neighborhood of the pixel location. An estimated disparity distribution of the pair of images may be obtained through the filtered disparity image and the confidence map.

The invention provides an under-actuated unmanned surface vehicle self-adaptive trajectory tracking control device and method. The device comprises a reference path generator, a state sensor, a differential converter, a parameter estimator, a virtual controller and a longitudinal thrust and bow steering torque controller. According to the unmanned surface vehicle actual position and course angle collected by the state sensor (2) and the reference position and reference course angle information generated by the reference path generator (1), the new state variable is obtained through the differential converter (5), the new state variable and the speed and angle speed information collected by a sensor (4) are transmitted to the parameter estimator (8) and the longitudinal thrust and bow steering torque controller (12), a control instruction is obtained through calculation to drive an execution mechanism, and the longitudinal thrust and bow steering torque of an unmanned surface vehicle are adjusted. According to the device and method, the unmanned surface vehicle can reach the specific position within specific time at specific speed. Due to the under-actuated unmanned surface vehicle, energy consumption and manufacturing cost of a system can be lowered, and the weight of the system is reduced.

The invention relates to a device for measuring friction torque of a bearing under different axial load and revolution speed, comprising a fixing component, an axial loading component, a display component and a measurement component arranged on a stander base, wherein, the measurement component is arranged in a bearing support by an upper bearing and a lower bearing which are the same and fixed on a stander workbench, a bushing on the workbench supports the end face of the bearing outer ring of the lower bearing, so as not to contact the end face of the inner ring, and a loading head presses the end face of the bearing outer ring of the upper bearing. The two same bearings are used for measurement so that the axial load is not directly applied to a transmission shaft and a driving device to influence and damage the operation of the driving device. The voltage of a direct current motor is adjusted by a voltage regulator, so as to adjust the rotate speed of the motor. The axial load is adjusted by rotating a screw. The device can measure larger and different load and bearings with higher and different rotate speed, has wide measurement range which can be adjusted, can meet different requirements of users, and has the advantages of simple structure, easy fabrication, convenient, accurate and intuitive operation and use, wide universality and strong practicability.

A method and controller for operating pumps wherein each pump is modelled by a QH model indicating a high-efficiency region, a high-H region and a high-Q region and a rotational speed limit. A controller dynamically maintains a current set of operating pumps and controls their rotational speed (n). In steady-state operation, wherein the pumps operate in the high-efficiency region and below the rotational speed limit, all pumps of the current set are controlled together. If the pumps operate in the high-Q region or beyond the speed limit, a new pump is added to the current set, started and brought to a speed that produces flow. A balancing operation (12-3) follows the pump addition operation, wherein the speed of the pumps of the current set are adjusted for equal heads. If the pumps operate in the high-H region, a pump is removed from the current set of pumps.

The invention discloses an adjustable-speed magnetic induction coupler, which relates to the technical field of transmission in mechanical engineering, and comprises a driving disk assembly (I) and a driven disk assembly (II), wherein the driven disk assembly (II) comprises a driven disk substrate 1, a driven disk substrate 2, a driven disk substrate 3, sectorial copper plates or rectangular copper bars, a rotary connecting rod, springs, sliding rods and a sleeve 2; the driven disk substrate material is steel disk, the end faces of the driven disk substrates1 and 3 are provided with deep slots of which the depth is greater than half the thickness of the substrates, and the sectorial copper plates or rectangular copper bars, which have the same shape as permanent magnets, are rotationally embedded in the slots; the sliding rods are distributed on the two end faces of the driven disk substrate 2 along a circumferential direction, the springs are sleeved in the sliding rods, and the driven disk substrates 1 and 3 are fixed on the sliding rods and can compress the springs along the sliding rods; and the rotary connecting rods are connected with the driven disk substrates 1 and 3 and are fixed on the driven disk substrate 2 rotationally. The adjustable-speed magnetic induction coupler can be used in power transmission mechanisms between loads and high- vibration motors such as coal mills, crushers and coal belt conveyers and used in transmission systems of other devices.

The present invention relates to a frictional wear simulation test bench of a wobble friction pair, which is mainly composed of the following components: a frame workbench, a main shaft drive unit, a friction pair simulation swing mechanism, a hydraulic loading device, a hydraulic control system and a PC control system. The PC control system of the simulation test bench collects the signals of a torque sensor, a pressure sensor and a rotating speed sensor; and can realize the following functions: controlling an amplitude and a frequency of a loading force; operating and controlling a test program; collecting, processing and storing data; displaying and printing test data and a test curve. The frictional wear test follows a system correlation principle, a principle that the temperature fields are similar, a limit principle, a principle that the wear mechanisms are same, and a wear test simulation determination standard. A practical wobble friction pair is used as a test object. The frictional wear simulation test bench of the wobble friction pair has the following characteristics: compact structure, adjustable load amplitude, adjustable rotating speed, adjustable loading frequency, capability of simulating different working conditions of an engine, and capability for measuring the frictional wear characteristics of different types of wobble friction pairs.

The present invention discloses an electrically-controlled high-pressure oil pump performance testing device for engine common rail and its testing method. It includes the following several portions: testing table chassis, testing table drive system, fuel oil supply system, testing system and measuring control system. The testing system includes oil pump component and oil quantity measuring component. It is characterized by that the testing table drive system includes drive motor and rotating speed regulating device; oil pump component includes a high-pressure oil pump, said high-pressure oil pump is driven by testing table drive system. Said invention also provides the concrete structure and action of oil quantity measuring component and measuring control system. Said testing device can be used for simultaneously measuring and recording related parameters of high-pressure oil pump.

The invention discloses a simple sea motion simulation platform device, which comprises a base, the base is provided with a vertical guide rod, a support frame is sleeved on the guide rod to be matched with the guide rod in a sliding way, a swinging rod is fixed on a first electrical machine arranged on the base, the swinging rod is matched with a guide way arranged on the support frame by a slide block, the support frame is provided with a second electrical machine, one end of a material carrying platform is articulated with the support frame, and the other end of the carrying platform is matched with a cam wheel of the second electrical machine. The first electrical machine, the swinging rod, the second electrical machine and the cam wheel form into a 'sine-cam wheel' mechanism. The sine-cam wheel realizes the motion on the direction of rising and sinking, realizes the motion on the transverse direction, mutually overlaps the two motions, can respectively control the rotation speeds of the two drive motors though an adjustable resistor, realizes the adjustability of the motion frequency on two directions, and can adjust the amplitude on the direction of rising and sinking by changing the operating distance of the swinging rod.

Method of determining a motion of continuous variable velocity for display means, comprising a step of establishing a model of at least one simulated mechanical force and/or torque value from values measured by a sensor, and a second step of solving a newton equation of motion from these simulated mechanical force and/or torque values, wherein the second step allows a simulated velocity to be calculated for the display means.

The invention discloses a double-disk autorotation eccentric V-shaped groove grinder, which comprises a frame, and an upper abrasive disk and a lower abrasive disk arranged on the frame; wherein, the upper abrasive disk is arranged on the spindle of the upper abrasive disk and the spindle of the upper abrasive disk is connected with the driving motor of the upper abrasive disk; the lower abrasive disk is connected with the driving motor of the lower abrasive disk, and the upper abrasive disk and the lower abrasive disk are arranged at the top and bottom. The frame comprises a frame body and an upper stent; wherein, the upper stent can be rotatablely arranged on the upper end of the frame body, and the upper abrasive disk is arranged on the upper stent while the lower abrasive disk is arranged on the frame body; at least three V-shaped grooves used for placing ball-billets are cut on the upper surface of the lower abrasive disk; each V-shaped groove is a concentric circle, the circle center of the concentric circle coincides with that of the lower abrasive disk, and the upper abrasive disk and the lower abrasive disk are eccentric with each other. The double-disk autorotation eccentric V-shaped groove grinder provided by the invention has simple structure and low manufacturing cost, and simultaneously has higher machining accuracy and machining efficiency.

The agricultural harvesting machine having a crop picking head includes a pickup conveyer which can be driven so as to pick up the harvested crop at a first adjustable speed, a discharge conveyer which can be driven so as to receive the harvested crop picked up by the pickup conveyer, transport the harvested crop, and discharge the harvested crop at a second adjustable speed, and a feed-in conveyer disposed in a feed-in channel of the harvesting machine that can be driven so as to receive the harvested crop from the discharge conveyer, transport the harvested crop, and discharge the harvested crop to a harvested crop processing unit at a third adjustable speed. The third speed and the first speed are independent of one another, and the second speed is defined by the first and third speeds and falls in a range between the first and third speeds.

The invention discloses an intelligent automatic root tuber crop harvester. A conveying separation mechanism separates broken soil and harvested products conveyed by a broken soil feeding device and conveys root tuber crops to a box car or spreads the root tuber crops in strips on the ground; a vibrating compaction break barrow and an electromagnetic vibration excavating machine are arranged in front of the broken soil feeding device, and the vibrating compaction break barrow is connected with a suspension frame device through a connecting rod and is positioned at the front end of the harvester; and the shoveling part and the tail of a digging shovel of the electromagnetic vibration excavating machine are connected with a middle connector, the middle connector is connected with the suspension frame device through a cam shaft, an electromagnetic chuck is connected with the suspension frame device, and a spherical head part at the lower end of a ball head adjusting screw is matched with the inner spherical surface of the electromagnetic chuck. The intelligent automatic root tuber crop harvester can automatically adjust the working parameters of each working part according to soil types, soil specific resistance, soil humidity and harvesting requirements of different crops so as to satisfy the requirement of harvesting the root tuber crops. The intelligent automatic root tuber crop harvester is particularly applicable to heavy soil.

The invention relates to a single wheel type tennis ball pitching machine, comprising a ball feeding device (1), a pitching device (2) and a drive controller (3). The ball feeding device (1) and the pitching device (2) are electrically connected with the drive controller (3), wherein the pitching device (2) is in a single wheel type and is mainly composed of a motor (11), a single friction flywheel (12) and a roller path (13), the roller path (13) and the single friction flywheel (12) are arranged on a rack (9), a chopping channel is formed between the single friction flywheel (12) and the roller path (13), the ball inlet port of the roller path (13) is connected with the ball outlet port of the ball feeding device (1), and the motor (11) which drives the single friction flywheel (12) is also arranged on the rack (9) and is connected with the single friction flywheel (12) by virtue of a coupler. The invention has simple structure and low cost and is beneficial to popularization of tennis training.

A hydraulic system of shield spiral conveying machine with ratio feedback control and energy storing device for oil supplement consists of a three-position and four-way solenoid change valve, a motor, a rotation sensor, a one-way valve, a liquid-controlled one-way valve, a throttle valve, a two-position and two-way solenoid reversal valve, a shift sensor, a hydraulic cylinder, a range switch, a stop ball valve, a unloading valve, an overflow valve and an energy storing device. The machine has a sensor to monitor rotation and makes variable pump controlled according soil cabin pressure so as to control soil discharge volume and to achieve a hydraulic control system of a continuous real time controllable spiral-conveying machine. The energy-storing device is used oil supplement to close exhaust outlet reliably when accident occurs to guarantee safety for tunnel engineering. The electric feedback and ratio feedback are used to control turbulence to soil body when shield tunneling and reduce settlement of earth surface. The machine can be adaptable for various strata reliably.

The invention discloses an electric double open inner swing door, comprising door leaves and two drive devices driving the door leaves to be opened and closed; each drive device comprises a door spindle, a fan-shaped gear arranged on the door spindle in a penetrating manner, a drive mechanism used to drive the fan-shaped gear to rotate, and a mounting plate used to movably mount the drive mechanism; each drive mechanism comprises a gear and an electromotor driving the gear to rotate, when the drive mechanism is moved to enable the gear to be meshed with the fan-shaped gear, the electromotor is started to drive the gear to drive the fan-shaped gear to rotate, such that the door spindle realizes door opening and closing actions. The electric double open inner swing door is low in noise, stable in output and energy-saving and environment-friendly, a crankshaft connecting rod or coupler is not adopted as the drive device, the transmission efficiency is improved, full power output can be realized, the two door leaves can be separately opened and closed, the structure is simple, operation is reliable, the service life is long and the electric double open inner sing door has very high reliability.