137results about How to "Avoid exceeding" patented technology

The invention discloses a dual-loop low dropout regulator, which comprises a first loop and a second loop, wherein the first loop is a three-level amplifier formed by a first amplifier stage, a second amplifier stage, a third amplifier stage, a first compensation network and a second compensation network, and a second loop is a three-level amplifier formed by a second amplifier stage, a fourth amplifier stage, a fifth amplifier stage and a third compensation network. According to the invention, a constant-voltage output of the LDO (Low Dropout Regulator) is controlled by the first loop, an output current of LDO is limited by the second loop so as to prevent the output current from exceeding an over-current point when an over-current condition appears, and the second compensation network and the output port of the LDO are externally connected with a load capacitor, so that a pseudo ESR (Equivalent Series Resistance) zero setting compensation network is integrated in the first loop, and the frequency compensation of the first loop is realized; and meanwhile, the second amplifier stage of the second loop and the second amplifier stage of the first loop are shared, so that the conventional dual-loop LDO circuit is simplified, and the area and the consumption of a chip are reduced.

The invention discloses a measuring method for inversing reservoir feeding flow procedure, comprising the steps: step I, performing observation and sampling to obtain the information of reservoir water level and discharging flow via a water level in front of the reservoir dam; step II, building a data assimilative state model and an observation model according to the information obtained in the step I; and step III, ascertaining the reservoir feeding flow procedures by a data assimilation algorithm according to the state model and the observation model obtained in the step II. The method disclosed by the invention can be used for ascertaining the reservoir feeding flow; compared with the prior art, the method disclosed by the invention can ensure smooth reservoir feeding flow, and avoid exceptional data like negative values and the like of the flow; the method also can supply the reservoir feeding flow procedure of minute time step, so as to reflect the flood peak information more truthfully; in addition, the method disclosed by the invention has low precision requirement to the water level gauge on the reservoir dam, so that the building and management costs of water level measurement stations are saved.

The invention is applied in the technical field of traffic control, and provides a method and a system for controlling traffic in streaming media transmission, and a streaming media server. The method comprises the following steps that: before streaming media data is transmitted, the streaming media server receives a residual traffic value in a current subscriber combo of a terminal from the terminal; the streaming media server judges whether the residual traffic value in the current subscriber combo meets the transmission of the streaming media data or not according to a traffic value required by the streaming media data; if the residual traffic value in the current subscriber combo is judged to meet the transmission of the streaming media data, the streaming media server transmits the streaming media data to the terminal; and if the residual traffic value in the current subscriber combo is judged not to meet the transmission of the streaming media data, the streaming media server transmits a message, to the terminal, prompting the terminal that residual traffic corresponding to the residual traffic value is not enough to support the transmission of the streaming media data. The method and the system have the advantage of preventing the generation of additional unnecessary traffic cost because traffic used by a subscriber exceeds the total traffic in the current subscriber combo.

The invention discloses an organic electroluminescence device which comprises the components of a substrate; an electroluminescent structure which is arranged on the substrate and is located in a displaying area; at least one retaining wall which is arranged on the substrate and is arranged in a non-displaying area, wherein the retaining wall surrounds the displaying area; at least one retaining wall is successively arranged in a direction of departing from the displaying area, and the retaining walls comprise a first retaining wall which is adjacent with the displaying area; the first retaining wall comprises at least one stack structure, the stack structure comprises an organophilic material layer and an organo-hydrophobic material layer, the organo-hydrophobic material layer is arranged on one side, which is far from the substrate, of the organophilic material layer; and a thin-film packaging layer which comprises an organic film layer and an inorganic film layer, wherein the organic film layer is arranged in a space which is formed through surrounding the displaying area by the first retaining wall, and the inorganic film layer is arranged on the surface, which is far from the electroluminescent structure, of the organic film. According to the organic electroluminescence device, a good boundary of the organic film layer is formed and furthermore thickness at the boundary of the organic film layer is effectively controlled.

The invention discloses a construction method for the midspan closure segment of a longspan continuous rigid frame bridge, which is characterized by comprising the following steps: (a) adopting a hanging basket cantilever pouring method, and constructing a cantilever beam section in front of the closure segment; (b) disassembling the hanging basket, manufacturing components disassembled from the hanging basket into a cradle, and installing the cradle on the two beam sections of the midspan closure; (c) carrying out equivalent counterweight; and (d) supporting the beam. The traditional hanging basket is utilized in the closure process instead of manufacturing the cradle again. After the traditional hanging basket system is disassembled and combined again, the closure cradle is formed, thereby guaranteeing the design requirement, improving the working efficiency and saving fund. The construction method for the midspan closure segment is suitable for constructing of the same type of suspended irrigation closure. The traditional hanging basket is modified without additionally adding the cradle, the self weight is lightened, and the problem that the upper limit requirement of the total amount of the additional loading amount of the closure segment is exceeded if the hanging basket is directly used for closure.

A sensor for measuring the rotational speed of a turboshaft of a turbocharger includes a sensor housing and a sensor element which is positioned in the sensor housing and which senses a variation of a magnetic field caused by the rotation of the turboshaft. In order to provide a sensor for measuring the rotational speed of a turboshaft which can be produced simply and at low cost and also can be integrated in a turbocharger without major structural modifications, the sensor element can be positioned outside the turbocharger, on or in a compressor housing, and a pole piece is arranged on the sensor element in such a way that it concentrates the magnetic field in the sensor element.

A wind power plant system comprising: a plurality of wind turbine generators each having a corresponding generator controller, and a power plant controller for controlling the power generated by the wind power plant system; wherein at least some of the plurality of generator controllers are each configured to: generate a model that indicates the thermal capacity of one or more components of the wind turbine generator, determine power capacity data from the model, said data relating to: at least one reactive power supply level and a corresponding time limit for which that reactive power supply level may be maintained, and transmit to the power plant controller the determined power capacity data, wherein the power plant controller is operable to receive the power capacity data from the plurality of generator controllers and to transmit respective power references to the plurality of generator controllers to control the power generated by the wind power plant system.

The invention provides an image rendering method and an image rendering device based on depth image forward mapping, and the method comprises the following steps of: inputting a reference image and a corresponding depth image; obtaining a mapping coordinate set according to the reference image and the depth image; carrying out smooth filtering on the mapping coordinate set so as to obtain the filtered mapping coordinate set; carrying out forward mapping on the reference image according to the filtered mapping coordinate set so as to generate a corresponding virtual view; carrying out cavity filling on the virtual view so as to obtain the filled virtual view; and carrying out border finishing to the filled virtual view so as to obtain a final virtual view. The method and the device provided by the invention are small in energy consumption and good in rendering effect, calculation quantity is reduced and at the same time, quality of a two-dimensional virtual view is ensured, and thus, the method and the device are particularly suitable for being used in situations having certain requirements on both instantaneity and quality and limited in resource.

The invention relates to a power supply device for an electric automobile. The power supply device comprises a power receiving side device (9) used for being connected with electric equipment and a power supply side device (8) used for being electrically connected with a power source, wherein the power receiving side device (9) can move close to the power supply side device (8) along with the electric equipment to supply power; the power receiving side device (9) comprises a base frame (91) and guiding rods (92) supported by a supporting arm (93) which is fixedly connected with the base frame (91); and a power supply plug device (94) which is electrically connected with the electric equipment through a tensile cable (940) is mounted on the guiding rods (92) in a sliding manner.

The invention discloses a device for controlling an acceleration voltage of a superconductive circular accelerator, and the device comprises a signal generator, a local crystal oscillator unit, a local control unit, a radio frequency diagnosis unit, an FPGA data processing unit and an interlocking protection unit. The signal generator is connected with the local crystal oscillator unit, and the FPGA data processing unit is connected with the local crystal oscillator unit, the interlocking protection unit, the local control unit and an accelerator, and the interlocking protection unit is connected with the radio frequency diagnosis unit. According to the invention, the radio frequency diagnosis unit is used for detecting a radio frequency signal in a cavity, so as to prevent the radio frequency signal from exceeding a threshold value. The FPGA data processing unit is used for the interlocking protection, amplitude, tuning, phase and field balance control, adjusts the stabilization of the acceleration voltage of an accelerating cavity, and is combined with the interlocking protection unit. Once there is an abnormality in the cavity, a radio frequency source can be quickly cut off, thereby effectively protecting an accelerator and an operator, and improving the operation safety of the device and the stability of the acceleration voltage.

The invention discloses a low-maintenance cost depositing and withdrawing device. According to a dynamic correction method applied to the sensor of the depositing and withdrawing device, threshold value adjustment is carried out until distinction degree is lower than an acceptable level, and then power adjustment is carried out, and thus, power adjustment is not enabled readily, so that the power adjustment has little possibility of achieving an adjustment upper limit. With the method of the invention adopted, the frequency of human intervention can be decreased to the greatest extent.

An intelligent power supply device, comprising a power receiving side device (9) for connecting with electric equipment and a power supply side device (8) for electrically connecting with a power source, the power receiving side device (9) can be connected with the The electrical equipment moves close to the power supply side device (8) to realize power supply, wherein the power reception side device (9) includes a base frame (91) and a support arm fixed to the base frame (91) (93) is supported by a guide rod (92), on which a power supply plug device (94) electrically connected to the electrical equipment through an extendable cable (940) is slidably mounted.

Exemplary embodiments of the invention provide an image processing system, an image display apparatus, a printer, and a printing method that are capable of, when a user attempts to print-output image data, adjusting an orientation of printing of the image data and an orientation of a print sheet to an appropriate direction to print-output the image data on the print sheet. According to exemplary embodiments, an image display apparatus includes a display device and a display control unit that controls to display an image on the display device on the basis of image data to be inputted. A printer includes a printing unit that outputs an image based on the image data to a print medium and an image upper side judging unit that, in printing the image displayed on the display device, judges the top and the bottom of the image on the basis of additional information included in image data of the image. The printer rotates the image such that an upper side of the image and an upper side of the print media defined by the printer coincide with each other on the basis of a result of the judgment by the image upper side judging unit and outputs the image to the printing unit.

Provided is a power supply device for vehicle charging, which comprises a power receiving side device (9) connected with electric equipment, and a power supply side device (8) electrically connected with a power source. The power receiving side device (9) can realize power supply by moving close to the power supply side device (8) with the electric equipment. The power receiving side device (9) comprises a base frame (91) and guide rods (92) supported by a support arm (93) fixedly connected with the base frame (91). The guide rods (92) are slidably provided with a power supply plug device (94) capable of being electrically connected with the electric equipment through an extendable cable (940).

The invention discloses a conveying chain rotating platform rotation control method and a rotation control device, which are applied in the field of steel coil conveying control. The conveying chain rotating platform rotation control method comprises the steps of receiving a rotation angle value fed back by a rotary encoder arranged on a rotary motor; after operating the rotary motor at a first rotary speed, judging the received rotation angle value to be within a preset switchover range; controlling the rotary motor to operate at a second rotary speed switched from the first rotary speed, wherein the second rotary speed is less than the first rotary speed; and after operating the rotary motor at the second rotary speed, controlling the rotary motor to stop operating switched from the second rotary speed if monitoring a starting signal of a target limit switch arranged on a rotating platform or judging the received rotary angle value is equal to a target angle value. The conveying chain rotating platform rotation control method and the rotation control device provided by the invention solve the technical problem that the rotating platform cannot rotate to a target stop position accurately, so that the rotating platform can quickly and accurately rotate to the target stop position.

The invention provides a manufacturing method of a packaging component. The manufacturing method comprises the steps of dam installation, wafer fixing, packaging colloid injecting and packaging and mold removing. The invention further provides a packaging component which is manufactured by applying the packaging component manufacturing method. The packaging component is used for being mounted on a circuit board. The packaging component comprises a wafer, a bonding pad assembly arranged at one side of the wafer, packaging colloid packaging outside the wafer and the bonding pad assembly and a dam enclosing outside the packaging colloid, wherein the bonding pad assembly comprises a positive bonding pad, a negative bonding pad and metal pieces used for connecting the circuit board and the positive bonding pad and the negative bonding pad, the metal pieces are connected with the positive bonding pad and the negative bonding pad in a one-to-one correspondence manner, and the area of the metal piece is greater than or equal to the area of the positive bonding pad or the negative bonding pad. Batch production is performed by adopting cooperation of various molds, so that mass production can be carried out more conveniently. In addition, the positions of the wafer and the packaging colloid relative to the dam can be better limited, and the light emitting angle and the light color uniformity of an optical design are effectively ensured.

The invention discloses a new energy battery storage box with a cooling function, and relates to the technical field of battery storage. The new energy battery storage box comprises a box body, wherein a cooling groove is formed in the box body, a lower surface of an inner wall of the cooling groove is fixedly connected with a lower surface of a temperature sensor, a lower surface of the box bodyis in lap joint with an upper surface of a first rubber pad, and a lower surface of the first rubber pad is fixedly connected with an upper surface of a support plate. According to the new energy battery storage box with the cooling function, by arranging the box body, the cooling groove, the temperature sensor, the first rubber pad, the support plate, a support rod, a liquid pumping device, an infusion pipe, a liquid inlet pipe, a liquid outlet pipe, a groove, a recycling pipe, an electric push rod, a first support plate, a sliding block, a second support plate, a sliding groove, a cover plate, a hinge, a handle, a PLC controller, a power supply and a switch, a battery stored in the box body can be in a corresponding temperature range, the performance degradation of the battery caused bya high-temperature environment is prevented, so that the service life of the battery is ensured.

The invention discloses a sea-air collaborative visual tracking and autonomous recovery method for an unmanned ship-mounted unmanned aerial vehicle. The method comprises the following steps: the unmanned aerial vehicle searches an unmanned ship by adopting a camera and utilizing a deep learning target detection algorithm; the identification code arranged on the unmanned ship is identified by adopting an airborne camera; when the height between the unmanned aerial vehicle and the boat is smaller than a set value h1, the boat-mounted camera is started to recognize an identification code arranged at the bottom end of the unmanned aerial vehicle and obtain relative position information delta X, delta Y and height H of the unmanned aerial vehicle relative to the boat-mounted camera, and data fusion is performed on the relative position information obtained by the boat-mounted camera and the airborne camera, and control information for adjusting the flight pose of the unmanned aerial vehicle is outputted. The attitude of the unmanned aerial vehicle is adjusted based on the relative position information of the unmanned aerial vehicle relative to the unmanned ship to enable the unmanned aerial vehicle to move along with the unmanned ship, the error of the unmanned aerial vehicle relative to the two-dimensional plane of the landing platform is reduced, and a corresponding descending speed is given to control the unmanned aerial vehicle to land to the center of the identification code according to the vertical distance of the unmanned aerial vehicle relative to the identification code.

The invention relates to a video frame caching and forwarding method and device, computer equipment and a computer readable storage medium. The method comprises the following steps: receiving a videoframe of a video sharing terminal; if the received video frame is a key frame, clearing the video frame data in the buffer, storing the key frame in the buffer, and setting pointing positions of a head pointer and a tail pointer of the buffer to point to the key frame; and if the received video frame is not the key frame, moving the pointing position of the tail pointer backwards for one bit, andstoring the received video frame into the pointing position of the tail pointer in the buffer. According to the video frame caching method, the video sharing terminal only needs to send one piece of video frame data to the server for caching and forwarding, so that network congestion caused by sending the video frames to a plurality of video request terminals is avoided. The buffer only stores onekey frame at the same time, so that the real-time performance of the video frame stored by the buffer is ensured, the occupation of cache resources can be reduced, and the caching and forwarding efficiency of the video frame is improved.

The invention relates to a mechanical arm planning method suitable for visual information guiding under the multi-constrained condition. The mechanical arm planning method comprises the following steps that (1), the current working stage of a mechanical arm is judged; (2), the capture target position is obtained, and the target speed is calculated; (3), whether the capture condition is met or not is judged, if yes, capturing operation is completed, and if no, the step (4) is executed; (4), whether a hand-eye camera stably captures a target or not is judged, if yes, a capture stage mechanical arm planning instruction is carried out, and if not, the step (5) is executed; and (5), whether the mechanical arm enters a dangerous zone or not is judged, if yes, a searching approach stage mechanical arm planning instruction is carried out, and if not, a quick approach stage mechanical arm planning instruction is carried out. According to the mechanical arm planning method suitable for visual information guiding under the multi-constrained condition, a two-eye camera and the hand-eye camera serve as visual sensors, and the effectiveness of the mechanical arm planning input information is ensured; and a mechanical arm movement forecasting method under the visual information losing condition is added, so that the scheme is good in integrity and high in adaptability.

The invention provides a w-axis rotating mechanism and a manipulator capable of rotating around the z-axis, and belongs to the technical field of automated equipment. The w-axis rotating mechanism is characterized in that a w-axis stand column (39), a rotating unit rotatably installed on the w-axis stand column (39), a w-axis power unit and a detection unit are included; the w-axis power unit is fixedly connected with the w-axis stand column (39), the w-axis power unit is connected with the rotating unit and drives the rotating unit to rotate, the rotating unit and the w-axis stand column (39) are coaxially arranged, and the detection unit is used for measuring and limiting the rotating angle of the rotating unit. The w-axis rotating mechanism can output power rotating around the w-axis stand column and drive grasped ceramic tiles to rotate to change the postures of the ceramic tiles when the ceramic tiles are transferred or stacked and is wide in application range; the detection unit can detect the rotating angle of the rotating unit, and therefore the precision of the manipulator is guaranteed. According to the manipulator capable of rotating around the z-axis, the freedom degree of a grab mechanism is increased, and therefore the grab mechanism is more flexible.

The invention discloses an image correction method and shooting equipment, and belongs to the field of projection display. According to the method, after a shot image obtained by shooting a projection screen is obtained, the shot image can be sent to laser projection equipment. Therefore, the laser projection equipment corrects the projection position of the projection image to be displayed based on the shot image, thereby ensuring the display effect of the projection image. Moreover, if the shooting equipment detects that the frame of the projection screen in the preview picture is located outside the target area of the preview picture, the adjustment prompt information can be displayed. In this way, a user can adjust the shooting parameters of the camera in time, it is ensured that the shot image collected by the camera meets the requirement, the reliability of the collected shot image is ensured, and then the reliability of correcting the projection position of the projection image to be displayed based on the shot image is improved.

A power supply device with elastic connection, comprising a power receiving side device (9) for connecting with electric equipment and a power supply side device (8) for electrically connecting with a power source, the power receiving side device (9) can be connected with The power-consuming equipment moves close to the power supply-side device (8) to realize power supply, wherein the power-receiving-side device (9) includes a base frame (91) and a A guide rod (92) supported by a support arm (93), on which a power supply plug device (94) electrically connected to the electrical equipment through an extendable cable (940) is slidably installed ).

The embodiment of the invention provides a method and a device for early warning of traffic and a server. The method comprises the following steps: obtaining network traffic used by a user terminal ina historical time; determining a correspondence between the time and the used traffic according to the network traffic used by the user terminal in the historical time; predicting the intraday traffic use value of the user terminal according to the correspondence; and performing traffic warning on the user terminal according to the intraday actual traffic use value and the predicted traffic use value of the user terminal. According to the embodiment of the present invention, when the traffic consumption of the user terminal is abnormal, the user terminal can be notified immediately, so that the mobile network traffic consumed by the user terminal exceeds the traffic in a service package of the user or the traffic in the traffic packet, thereby preventing economic loss from being caused tothe user.

The invention provides a convenient-to-plug power supply device including a power receiving side device (9) connected with a power consuming device and a power supply side device (8) connected with a power source electrically. The power receiving side device (9) can move along with the power consuming device so as to get close to the power supply side device (8), so that power supply can be realized. The power receiving side device (9) includes a bed frame (91) and a guide rod (92) supported by a support arm (93) fixedly connected with the bed frame (91). The guide rod (92) is slidably provided with a power supply plug device (94) electrically connected with the power consuming device through an extendable cable (940).

The invention provides a flow limiting method and device for a distributed server. The method comprises the following steps: receiving at least one transaction request; if it is judged that the transaction requests meeting the flow limiting judgment rule exist in the at least one transaction request, obtaining the number of the transaction requests in unit time; wherein the current limiting judgment rule is preset; and if it is judged that the number of the transaction requests in the unit time is greater than a flow limiting threshold, rejecting the transaction requests which exceed the flowlimiting threshold and meet the flow limiting judgment rule. The device is used for executing the method. According to the flow limiting method and device for the distributed server provided by the embodiment of the invention, the running stability of the distributed server is improved.

A printer capable of saving printing paper comprises a machine base, a mark seaming detection unit, an edge detection unit and a controller. The mark seaming detection unit and the edge detection unit are connected with the controller separately; a rubber roller is arranged on the machine base and arranged on one side close to a paper outlet; the edge detection unit is arranged between the paper outlet and the rubber roller; and the mark seaming detection unit is arranged between the rubber roller and a paper inlet. According to a control method of the printer, firstly the edge detection unit and the mark seaming detection unit detect together to determine the initial state of the printing paper; and then according to the different states of the printing paper, the printing paper is controlled to advance or retreat, so that the edge detection unit detects the edge of the printing paper, and the mark seaming detection unit detects the height of the printing paper. No matter where the edge of the initial state of the printing paper is located, the first piece of printing paper can be not wasted, and the printing paper is saved.

The invention relates to a parking lot parking spot navigation system using a micro map and a WIFI position to perform positioning. The parking lot parking spot navigation system comprises a control center as well as a detection unit, a display light, a pressure sensor and a server which are electrically connected with the control center respectively; the parking lot parking spot navigation system further comprises a client end electrically connected with the server and an alarm electrically connected with the pressure sensor; and the detection unit is arranged in a parking spot; and the display light is fixed above the parking spot. According to the parking lot parking spot navigation system of the invention, the detection unit, the control unit, the control center and the client end are adopted, and therefore, real-time parking state query can be facilitated for the owner of a vehicle; micro map data stored in the server can play a role of navigation for the owner of the vehicle, and therefore, parking time can be greatly decreased.

The invention discloses a range hood. The range hood comprises a smoke collecting cover, a machine box arranged above the smoke collecting cover and a fan arranged in the machine box, an air inlet isformed in the smoke collecting cover, a smoke guide plate is arranged below the air inlet, the fan is a three-dimensional fan, at least a part of the lower surface of the smoke guide plate is gradually inclined upwards from the middle to the edge so as to cooperate with the corresponding wall surface of the smoke collecting cover to define an acceleration flow channel with the cross section gradually reduced from bottom to top. The amount of oil smoke entering the range hood per unit time can be increased through the acceleration flow channel, so that the oil smoke suction effect is improved;and through the horizontal three-dimensional fan and a rotary filter screen arranged at an inlet of an air duct, the oil smoke can pass through the rotary filter screen at a relatively low flow rate before not being accelerated through the air duct, then the mutual contact time between the oil smoke and the rotary filter screen is relatively long so that the oil smoke can be fully collided with the rotary filter screen.