709results about How to "Continuity" patented technology

The invention discloses a tunnel body form deformation mobile monitoring system and a monitoring method thereof. The hardware comprises a laser scanner, a CCD camera, a speed meter, an inertial navigator, a central control unit and bar codes. The central operation control unit leads the hardware of each sensor to be synchronous, stores the data of each sensor and carries out the corresponding position and stature calculation so as to process the obtained point cloud data of the tunnel sections; the bar codes are distributed at the positions on the tunnel surface where the CCD camera can shoot and the storage position information of the bar codes is adopted as the position reference of moving carriers and sensors. The hardware of the tunnel body form deformation mobile monitoring system provided by the invention is helpful for quickly and dynamically collecting space data and for further carrying out the body form deformation analysis through three dimensional modeling and reconstruction of models so as to monitor the deformation process continuously.

The invention discloses a vehicle collision avoidance system and a track planning method thereof. The system comprises a forward looking radar, a camera, a vehicle speed sensor, a yaw angular velocity sensor, a sideslip angle sensor, a signal processing module, an electronic control unit (ECU), a throttle controller, a steering controller and a braking controller. When a vehicle is driven, signals which are transmitted by all sensors through the signal processing module are collected in real time by the electronic control unit, the road condition and the vehicle condition of the vehicle at the moment are judged in real time, if hazardous conditions possibly occur, a continuous collision avoidance executable track is generated by the ECU according to a track planning program preset in the ECU, and the related signals are output to the throttle controller, the steering controller and the braking controller for corresponding operations, so that the hazardous conditions are avoided. According to the vehicle collision avoidance system, a driver can be assisted to operate the vehicle in case of an emergency, so that the active driving safety performance can be increased.

The invention discloses an improved type active disturbance rejection controller. A tracking differential controller performs arrangement transition on an input current given signal iq<*>, and obtaining a smooth transition signal; comparing the output signal of the tracking differential controller with an output signal Z21 of an expansion state observer, and obtaining a system error e; using the system error as the input signal of a novel nonlinear state error feedback control rate; expanding total disturbance of the system to a state, observing the total disturbance by means of a novel expansion state observer and performing real-time compensation, and obtaining current output iq of a controlled object. The active disturbance rejection controller improves smoothness at the periphery of an original point of a traditional active disturbance rejection controller and settles a problem of high-frequency flutter of the active disturbance rejection controller. Through simulation in an MATLAB-Simulink environment, the improved type active disturbance rejection controller has advantages of relatively high speed, relatively high stability, relatively high robustness, and high practical value in engineering, etc.

The invention discloses a target detection and tracking method for three-dimensional point cloud data. The method comprises the following steps: reading original point cloud data from laser radar equipment, carrying out the segmentation and extraction of a ground plane point of the obtained original point cloud data, and obtaining a ground point Pg and a non-ground point Png; carrying out clustering processing on the non-ground points to generate respective independent target point cloud clusters; obtaining target data generated by clustering through calculation in the point cloud cluster; judging the generated target data to obtain a moving target and speed information of the target; obtaining prior estimation based on motion estimation of the constant-speed linear motion model; and performing state updating on prior estimation and actual observation of the target to obtain updated state which is target data obtained in real time currently, namely three-dimensional point cloud targetmatching. According to the invention, the adopted target tracking algorithm is combined with motion estimation and feature matching based on target information, and the accuracy of target tracking isimproved through comparison with the observed value of the current frame.

The invention provides a data processing method and device and a data acquisition system, and relates to the field of Internet of Things. The method is applied to data processing devices in a data acquisition system for acquiring energy data of buildings. The system comprises a server, a data processing device and multiple data acquisition devices arranged in a building. The method comprises steps that the data processing device acquires acquisition data acquired by the data acquisition devices and acquisition time corresponding to each acquisition data; the data processing device verifies the acquired acquisition data, stores acquisition data whose verification results are valid as valid-state data, and stores the storage time and the acquisition time of the valid-state data; and when the data processing device is in a network connection state, the stored valid-state data, the corresponding storage time and the corresponding acquisition time are sent to the serve.

The invention relates to a mobile terminal technical field and discloses an earphone playing-based sound adjustment method. The method includes the following steps that: external environment sound detection is started when earphone playing is performed, corresponding key information is set; and external environment sound is continuously acquired through a microphone, and a decibel value is calculated; when the decibel value of the external environment sound mutates, sound recognition processing is performed on the collected sound, and whether the external environment sound is matched with the key information can be judged according to the results of the sound recognition processing, if the external environment sound is matched with the key information, the volume of the earphone is turned down or the earphone playing is suspended, otherwise, sound acquisition and sound recognition processing are continued, when the decibel value does not mutate in a duration, the sound recognition processing is stopped. With the earphone playing-based sound adjustment method of the technical scheme adopted, important information in external environment can be automatically identified when a user uses the earphone playing, and the earphone playing can be suspended automatically when a situation requiring the attention of the user appears in the external environment, such that the user will not miss the important information of the external environment.

Disclosed is a door mirror device that is able to continuously emit light from two light guides. The door mirror device is equipped with a first light-emitting light guide, which is arranged in the visor part of a door mirror that is foldably mounted on the door mirror support part of a vehicle, a second light-emitting light guide, which is arranged in the door mirror support part with continuity so that one end thereof is opposite an end of the first light-emitting light guide, and a light source that shines light toward the first light-emitting light guide and the second light-emitting light guide in the visor part.

The invention discloses a continuous production method of carboxymethylcellulose lithium for lithium batteries in order to solve the problems that a lithium ion battery adhesion agent pollutes the environment, is single in function and high in price. The production method includes the steps that sodium carboxymethyl cellulose is prepared, and the carboxymethylcellulose lithium is obtained after the sodium carboxymethyl cellulose is acidized, alkalinized and purified. The prepared carboxymethylcellulose lithium breaks the pattern that autonomous mass production of carboxymethylcellulose lithium cannot be achieved domestically, according to the current condition of domestic production, on the basis that the performance of the carboxymethylcellulose lithium is guaranteed, continuous and large-batch production of the carboxymethylcellulose lithium can be achieved, and production cost is greatly reduced. A series of product performance testing preparation parameters are summarized in the method, and the parameters are quality control indexes of carboxymethylcellulose lithium and can also provide a reference for establishing standards of industrialized carboxymethylcellulose lithium in future.

The present invention discloses a melting method for production of mineral wool from liquid blast furnace slag, during use of the liquid blast furnace slag for direct production of the mineral wool, an acidic additive is added into a liquid blast furnace slag tank for conditioning, the liquid blast furnace slag filled tank is heated below an electrode, an inert gas is blown on the bottom of the tank, and stirred, then the liquid blast furnace slag is poured into an electric furnace, the electric furnace is provided with the well-mixed liquid blast furnace slag with the amount of two times of the liquid blast furnace slag tank, and sustainedly heated for heat insulation; finally the furnace is opened for discharge of the slag, the furnace slag is continuously sent into a wool making machine to prepare into the mineral wool. Compared with high energy consumption of traditional cupola furnaces and kilns, by use of the process, sensible heat of the liquid blast furnace slag can be maximumly used, conditioning cycle can be shortened, meanwhile the contradiction between intermittent blast furnace slag discharge and mineral wool continuous production can be solved by the electric furnace, so that blast furnace ironmaking and mineral wool production processes can be better effectively combined to maximize economic benefits.

The invention relates to an online broadband ultrasonic wave sewage treatment unit, belonging to the technical field of sewage treatment equipment and aiming at providing an improved ultrasonic wave sewage treatment unit with better effect; the technical proposal includes that: the sewage treatment unit is composed of a reactor, a sedimentation tank and a frequency converter tube, wherein the frequency converter tube is mounted in the reactor, an interfering plate is mounted between the outer circumference of the middle part of the frequency converter tube and the inner wall of the reactor, diffraction circular holes are evenly distributed on the interfering plate, the lower end of the frequency converter tube is mounted with a pressure jet nozzle, the pressure jet nozzle is connected with an ejector and a high pressure water pump, the bottom part of the reactor is provided with a planar reflection plate, a high frequency energy transducer and a low frequency energy transducer are mounted on the planar reflection plate, the sedimentation tank is mounted around the circumference of the reactor, the lower part and middle part of the reactor are respectively provided with a return port and an overflow port communicated with the sedimentation tank, and a water outlet is arranged on the upper part of the sedimentation tank. The online broadband ultrasonic wave sewage treatment unit has the advantages of wide ultrasonic wave bandwidth, increased amplitude, further improving cavitation effect, full reaction of atomized sewage and ozone and air, wide application range, high efficiency and economy and practicality.

A multivariate product quality monitoring method oriented to a digital workshop includes the steps: building a quality information acquisition scheme suitable for the digital workshop; building a quality control and improvement model oriented to the digital workshop, and particularly performing multivariate process capacity analysis based on an improved principal component analysis method according to multiple quality characteristics of key processes of key products of a machining workshop; controlling and diagnosing multivariate product by the aid of principal component analysis technology to solve the problem that a multivariate statistical control chart difficultly diagnoses and positions process exception. The quality assurance capability of the key processes of the key products can be quantitatively evaluated by the workshop, and a source of a quality problem is timely positioned when the quality problem arises, so that further cost loss is avoided.

The invention relates to a method for transferring graphene by using micro-molecule paraffin. The method comprises the following steps: preparing a graphene film growing on a copper foil by using a CVD (chemical vapor deposition) method, and then etching the graphene film away from one surface of the copper foil by using oxygen plasmas to ensure that the graphene film is remained on a single surface of the copper foil; spin-coating molten and heated paraffin to the graphene film at a certain rotating speed; after the graphene film is cooled to room temperature, corroding off the copper foil by using corrosive liquid; infiltrating the paraffin/graphene film by using clear water for multiple times, and then transferring the film to a target base; and drying the film for a plurality of hours until graphene and the base are adhered tightly, annealing by using an annealing furnace to remove the paraffin, thereby obtaining the graphene film transferred to the target base. The obtained graphene film, compared with a graphene film transferred by using macromolecules, has a cleaner surface, namely a support film is removed more thoroughly, and the continuity and good electrical conductivity of the graphene film are kept. By use of the method, graphene can be cleanly transferred to any base on a large scale.

The invention discloses a sliding formwork control method used in motion control of a virtual axis machine tool cutter, comprising the following steps: planning the space motion trail of the cutter in the processing procedure of a virtual axis machine tool; determining the expected motion trail of each active pair of the virtual axis machine tool in the processing procedure; then establishing the mathematical models of the controlled objects of each control branch circuit of the virtual axis machine tool; detecting and determining the actual motion state of each active pair of the virtual axis machine tool; calculating the function of the switching surface according to the sliding formwork control theory; determining the motor drive controlled variable of each control branch circuit of the virtual axis machine tool and sending to each motor driver; and finally driving each active pair by the motor drive controlled variable of each control branch circuit so as to drive the virtual axis machine tool cutter to realize the expected motion. In the invention, the precise models of the controlled objects of each branch circuit are not needed to be established, and the high-precision control towards the motion of the cutter can be realized by utilizing the excellent characteristics of the sliding formwork control technology; and the controlled variable of the sliding formwork is constituted by continuous functions with no trembling problems.

The invention discloses a multifunctional cleaning brush which comprises a base, a handle connected with the base, a lifting brush head device and a water absorbing scraper device which are arranged on the base, and a power supply for providing power for the lifting brush head device and the water absorbing scraper device; the lifting brush head device comprises a lifting driving device, and a brush head controlled to stretch out of or retract into a base wiping surface by the lifting driving device; and the water absorbing scraper device comprises scrapers hinged to two ends of the base, a linkage device connecting the two scrapers to link the two scrapers, and an air sucking device for sucking away water stains collected by scraping with the scrapers. The multifunctional cleaning brush provided by the invention has the functions of brushing for washing and water scraping, the two functions do not interfere with each other in use, the use is more humanized, and in use, conversion between brushing for washing and water scraping has continuity, thus improving the efficiency.

The invention relates to heat exchange equipment and discloses a plate-fin heat exchanger. The plate-fin heat exchanger comprises a shell, a fixing part arranged on the shell and used for fixing the plate-fin heat exchanger, a heat exchange core and an end socket cavity welded at two ends of the heat exchange core, wherein the end socket cavity is welded with an inlet pipe and an outlet pipe; the heat exchange core comprises outside clapboards, inside clapboards, an inside fin, an inside seal, an outside fin, an outside seal and bilateral side plates; the outside fin and the outside seal arranged between the outside clapboards forms a cold passageway ; the inside fin and the inside seal arranged between the inside clapboards forms a hot passageway; the end socket cavity is communicated with the hot passageway; the cold passageway and the hot passageway are arranged in a layered crossing way; the inside of the end socket cavity is provided with a punching baffle, and holes with diameters from small to large are distributed along a central axis of the punching baffle from inside to outside. The structure improves the uniformity of flow velocity distribution of outlet cross-section of the whole plate and improves the heat exchange performance of the heat exchanger.

The invention discloses a video synthesis method based on lip language synchronization and miracle adaptation effect enhancement. According to the method, the portrait and the audio stream to be synthesized are directly and integrally coded; a cyclic decoder network retaining original face information is used to decode converted abstract features into an image sequence, and then five discriminatornetworks are used to carry out adversarial training on the synthesized image sequence according to a real image sequence, so that a total reconstruction error is minimized. Compared with an existingvideo synthesis method, the method has the advantages that the continuity of face change between the front frame and the rear frame is guaranteed, the definition of face pictures in the frames is improved, meanwhile, under the action of the lip language synchronous discriminator and the miracle adaptation discriminator, the synthesized video appears more natural, and the authenticity of the visualeffect is greatly enhanced. The method has high practical value in the aspect of improving the user experience of virtual live broadcast and man-machine interaction.

The present invention is process of synthesizing guaiacol, and relates to the application of catalyst in catalytically synthesizing guaiacol through the solid phase alkylation reaction between catechol and methanol. The catalyst has active component of ammonium metatungstate, sodium tungstate, ammonium molybdenum, ammonium biphosphate, ammonium phosphate, ammonium chromate or silicotungstic acid; and carrier of active carbon, SiO2, ZnO, Al2O3, TiO2, BaCO3 or CaO; and active component supporting amount of 2.1-30.2 wt%. The process of synthesizing guaiacol has catalytic reaction temperature of 533-573 K, the molar ratio between catechol and methanol of 1/7-1/2.5, and catalyst amount of 0.84-2.8 weight portions. During the process, the mixed solution of catechol and methanol is fed to the pre-heater in the flow rate of 0.3-2ml/hr, gasified and reacted catalytically at the temperature of 533-573 K.

Provided are a real-time low speed detection device and method based on DSP quadrature encoding. The device comprises a pulse encoder, a signal conditioning circuit, a quadrature encoding module and a processor. The pulse encoder outputs difference pulse signals Ao, difference pulse signals Bo and difference pulse signals Co, the pulse signals Ao, the pulse signals Bo and the pulse signals Co, output from the pulse encoder, are input to three input ends of the quadrature encoding module respectively through the signal conditioning circuit, and the four output ends of the quadrature encoding module are respectively connected with the processor. The device and method have the advantages that by the adoption of the technical scheme, calculation of the rotating speed is faster, meanwhile interruption and a DSP internal counter are adopted in the whole calculation mode, and CPU time is not occupied; meanwhile, the mode of the rotating speed is used, so detection at a high speed, at a low speed and at an ultralow speed can be achieved at the same time, and the former method of calculation of the rotating speed can be completely replaced; in addition, the method has continuity and timeliness of calculated quantity, encapsulation of functions can be conducted, and modularized processing of software is facilitated.

The invention discloses a vehicle information acquisition method based on integration of depth information and visual image information and a device thereof, and is suitable for structured light laser devices of different wavebands. Structured light is projected to the surface of an imaging object by a laser device, and intersected laser rays of structured light and the imaging object are acquired by an area array camera; visual image gray scale information of the imaging object is acquired by a linear array camera; the three dimensional coordinates of each point of the center line of the laser rays are calculated; and the three dimensional coordinates of each point of the center line of the laser rays are corresponding to visual images acquired by the linear array camera through perspective transformation so that the four-dimensional coordinates of each point can be formed. The advantages of the vehicle information acquisition method based on integration of the depth information and the visual image information and the device thereof are that three-dimensional information and the visual image information can be acquired simultaneously, the three-dimensional information has advantages in aspect of object measurement and the visual grey scale images have advantages of continuity of acquisition. Both advantages are combined by the method and the device, the method and the device can be used for bottom part, the side part or the top part of vehicles, and the visual image information and the depth information of the vehicles can be acquired.

The invention discloses a dynamic pore-pressure static sounding probe for detecting sludge. A coaxial cable (1) is used for transferring a signal and data; an analogue-digital converter (2), an acceleration transducer (3) and a gradiograph (4) are arranged on an upper half section of the probe; a side-wall friction cylinder (5) is arranged on a lower half section of the probe; a side wall frictional resistance sensor (6), a pore water pressure sensor (7), a disc resistance sensor (8) and a temperature sensor (9) are arranged in the side-wall friction cylinder (5); a disc (10) is connected under the side-wall friction cylinder (5); a filtering net (11) is arranged at the center of the disc (10); the filtering net (11) is also located at the center of the side-wall friction cylinder (5); and a water inlet channel is formed between the filtering net (11) and the pore water pressure sensor (7). The application of the probe has the characteristics of in-situ, directness, quickness, accuracy, economical property, and the like, and a powerful testing tool is supplied to geotechnical engineering practice.