2071results about How to "Quick lock" patented technology

A process variable transmitter, implemented in a dual PLL structure, includes a first PLL having a first bandwidth producing a first output signal, and a second PLL having a second bandwidth narrower than the first bandwidth of the first PLL. The first and second PLLs are operable to lock into a frequency of an input signal and produce first and second output signals, respectively. The second PLL is operable to lock into the frequency of the input signal with greater accuracy and greater immunity to noise than the first PLL. A switch is operable to switch an output signal of the process variable transmitter between the first output signal and the second output signal.

A method for maintaining the states of a receiver during the silent line state of a network device operating in a low power link suspend mode is presented. Accordingly, a method of freezing the states of the equalizer and keeping the receiver clock locked to a frequency that is approximately equal to that of the input data while providing for rapid adjustment to the phase and thus recovery of the input data is presented. During Silent Line State (SLS), the receiver states are frozen using methods that avoid parasitic decay. Also, the receive clock phase lock loop is locked onto the local transmit clock since the local transmit clock has a frequency approximating the incoming data frequency. During the SLS, the transmitter of the remote network device may have been turned off to conserve power therefore the receiver has no way of immediately knowing the phase of an incoming data. Thus, in order to prevent loss of data, the receiver loops of the receiving network device are trained to the frequency of the transmitting remote network device using periodic Link Suspend packets. Thus, in most cases, only the phase of the incoming signal need be acquired when data arrives. The phase may be quickly acquired using loop bandwidth shift methods whereby the receive clock phase lock loop bandwidth is increased to a value that aids rapid acquisition of the input clock and then, after acquisition, the bandwidth is shifted to a low value to enhance noise rejection during tracking.

The invention discloses an automatic vehicle-mounted mobile power charging and exchanging station for an electric vehicle and a method for quickly exchanging a battery. The automatic vehicle-mounted mobile power charging and exchanging station comprises a tractor, a semitrailer and a battery box storage rack, a battery box, an automatic power exchanging device, a charging system, an electric quantity counting system, an automatic control unit and the like which are arranged on the semitrailer, wherein the storage rack can store a plurality of battery boxes three-dimensionally; the battery boxes are standard exchanging modules connected with a battery house on the lower part of a vehicle body by using a plurality of quick-opening locking bolts; the automatic power exchanging device comprises a lifting table, a transmigration machine, a shifting machine and a plurality of unlocking / locking bushings; the automatic power exchanging device can automatically transport and store the battery boxes, and lock or unlock the battery boxes and the battery house due to mutual matching of the lifting table, the unlocking / locking bushings and the quick-opening locking bolts, so automatic dismantling and exchange of the battery boxes can be realized; and the charging system is used for automatically charging the battery boxes. The station is complete in system, compact in structure, flexible in maneuvering, low in investment and short in construction period, so the automatic power charging / exchanging requirement of the battery of the electric vehicle can be met.

The invention provides a real-time monitoring system for a software system. The monitoring system is configured in a software system server and used for collecting log information generated by operation of the software system. The monitoring system comprises a log collecting module, an information system, a streaming type computing platform, a data storage module, an alarm module and a configuration management module. The log collecting module is used for screening and processing generated logs in real time and transmitting the logs selected to be monitored and alarmed to the information system; the information system is used for receiving the monitored logs transmitted by the log collecting module, and transmitting the logs needing to be monitored and alarmed to the streaming type computing platform according to a route rule; the streaming type computing platform is used for processing the logs one by one in a streaming data processing mode, and judging whether to need to record, alarm or notify the abnormal alarm situation to a related principal of the system according to log alarm levels; the data storage module is used for processing data information generated in the real-time monitoring process persistently and namely storing the data information into a database or a file system.

The present invention belongs to the technical field of concrete construction and particularly relates to a design method for a mixing proportion of a self-compacting concrete mixture. The method comprises the steps of: determining a performance design target; determining mixing strength and a water-binder ratio; determining densest gradation (or a sand rate) of aggregates and void ratios of different packing states; determining the usage amount of binding materials and mixing water; determining the usage amount of the aggregates; determining the usage amount of additives; determining the actual adding amount of the mixing water; and the like. According to the method provided by the present invention, aimed at blindness of material selection during self-compacting concrete mixing proportion design in the prior art, based on a fundamental theory of particulate dense packing and a composition rule of reaching a densest packing state of solid particulate materials with different particulate diameters, a mixing proportion of different materials is determined by an actually measured densest packing state, and relationships are established between the material mixing proportions corresponding to different densest packing states and expected self-compacting performance grades of the mixture, so that the design method used for the mixing proportion of the self-compacting high-performance concrete mixture and based on a use performance as a target is constructed.

A display device for displaying pictures at different angles based on the visual angle of a viewer comprises a display screen, a camera and a computer control system, wherein the computer control system is prestored with a series of pictures or videos taken at different visual angles of the same scene. The display device is characterized in that the camera is started by using the computer controlsystem to photograph the viewer in front of the display screen, and then the image of the viewer is sent to the computer control system; a face candidate region is quickly located on the image of theviewer photographed by a computer using the camera by combining a motion analysis method and a skin analysis method, and then a human-eye detection algorithm is applied to detecting the position of the eyes of the viewer; by combining the distance from the viewer to a screen, the visual angle between the viewer and the camera is calculated according to a formula described in the specification, and the visual angle theta between the viewer and the display screen is approximately equal to the visual angle gamma between the viewer and the camera according to another formula under the condition that the distance from the non-large screen of the display screen to the viewer is more than 1 m; after receiving the information of the visual angles, the system outputs pictures or videos corresponding to the visual angles to the display screen; in the formulas, theta is the visual angle of the viewer, f is the focal length of the lens of the camera, d is the distance from a target point in the collected image to the central point of the image and gamma is the visual angle between the viewer and the camera, theta is the visual angle between the viewer and the display screen, l is half of the width of the display screen, d is the distance from the viewer to the display screen, and beta is a rotating angle between the viewer and the centre line of the display screen.

The invention discloses a quick locking type digital time delay lock loop circuit and relates to the technology of signal phase deviation. The digital time delay lock loop circuit comprises a duty ratio adjusting circuit, a phase discriminator, a digital control time delay chain, a digital time converter, a shift counter and a replication time delay unit, wherein the digital control time delay chain comprises at least four levels of identical time delay units, all time delay units are controlled by the same controller and has the same time delay quantity; and each level of time delay units comprises a coarse tuning time delay unit and a fine tuning time delay unit, and the coarse tuning time delay unit and the fine tuning time delay unit are connected in series to expand the working frequency range of the delay lock loop. The digital time delay lock loop circuit provides an accurate 90-degree phase shift signal to a DQS (Data Strobe Signal) signal in a DDR (Data Direction Register) controller and has the properties of quickly locking and avoiding wrong lock of the loop.

The invention belongs to the technical field of intelligent robots and control and particularly relates to a mobile robot path planning method based on a variable-dimension particle swarm membrane algorithm. The mobile robot path planning method based on the variable-dimension particle swarm membrane algorithm includes the main steps of performing environment modeling, inputting path parameters, setting a fitness function, initializing parent particles and child particles of an effective path, classifying and re-classifying the path particles, evaluating the fitness function, updating the positions of d-dimension particles, judging whether the current particles have invalid dimensions or not, correcting the particles with invalid dimensions, removing redundant dimension information and the like. According to the mobile robot path planning method based on the variable-dimension particle swarm membrane algorithm, the optimum path suitable for a robot to walk along can be fast planned through global known or local position information of a complex environment and state parameters of an undetermined mobile robot.

The invention relates to a high-power radio frequency connector provided with a fast locking and separation mechanism, which comprises a plug and a socket. The plug comprises an elastic claw, an unlocking sleeve, a plug external conductor, an elastic gasket, a positioning nut, a dielectric body and an auxiliary nut. The locking face of the elastic claw, after being arranged in the unlocking sleeve, extends out of the unlocking sleeve a certain distance through a corresponding positioning groove and is axially positioned on the plug external conductor together with the elastic gasket through the positioning nut. The front end of the unlocking face of the elastic claw is positioned below the unlocking sleeve and locks the locking face in the locking groove. The socket comprises a socket external conductor, a waterproof O-shaped ring and a dielectric body, and a locking groove is arranged on the socket external conductor. The high-power radio frequency connector is ensured to meet the indexes of low reflection and low intermodulation and is convenient to use, high in reliability and excellent in mechanical and electric properties.

The invention relates to cat litter prepared from dry bean dregs and a preparation method thereof, wherein the cat litter is used for burying excrement and urine of pets. The cat litter is prepared from the following components through a series of processes including crushing, mixing and forming according to weight ratio: 5-90 parts of dry beam dregs, 10-90 parts of plant adhesive, 20-80 parts of filling agent, 0.1-10 parts of releasing agent, 0.1-5 parts of surface active agent, 0.01-3 parts of preservative, and 1-10 parts of deodorant. According to the invention, the cat litter prepared by the preparation method provided by the invention has the advantages of being wispy and hollow in surface, low in structural density, light in weight, higher in water absorption speed and better in water absorption performance; compared with other cat litters, the cat litter has the advantages of being more saving in use amount and higher in cost performance; after being used, the cat litter can be directly washed away through a sewer and cannot be blocked; the cat litter is convenient to clean; and the cat litter provided by the invention has the advantages of being environment-friendly, non-toxic, pollution-free, strong in absorption performance, simple in production process and free from wispy dust in production and transportation processes and has a deodorization function.

The invention relates to a semantic net based large scale offline data analysis framework. The large scale offline data analysis framework includes a data acquisition layer, a body layer, a data storage layer, a semantic layer, a data analysis layer and an application layer. A data source includes dynamic data and static data, and the static data includes data and database internal logic semantic and structure type. The static data is established into a body model in the analysis framework; the static data is extracted and modeled, and then the static data orients a user or an upper analysis task in a semantic service manner. The large scale offline data analysis framework can effectively improve the ability to organizing multi-source heterogeneous offline data and has a uniform interface to upper data; and application users or data analysis workers can access a lower data source through a semantic interface without knowing all the information of different data sources, and relevant data information is acquired. The large scale offline data analysis framework can effectively update the whole data source from a global perspective by correction of the body structure having changed content and update and inference service built in an application tool.

The invention relates to a method for pumping a rubidium bubble for outputting standard frequency by a lamp pump rubidium gas laser and a rubidium atomic clock. The method comprises the following steps of: adopting a filtered rubidium gas electrodeless lamp as a pumping light source for pumping a rubidium gas atom in an atom steam chamber, realizing distribution quantity conversion and then forming a lamp pump rubidium gas laser under the action of a laser resonant cavity; carrying out laser pumping on the rubidium bubble arranged in a microwave cavity by utilizing the lamp pump rubidium gas laser and detecting the transition probability of the pumped rubidium atom for generating transition by generating interaction with a microwave field in the microwave cavity by utilizing the lamp pump rubidium gas laser; and locking microwave frequency fed in the microwave cavity according to the detected transition probability and locking the microwave frequency fed in the microwave cavity on clock transition frequency of the atom. In the embodiment of the invention, because the frequency of the lamp pump rubidium gas laser still operates on a rubidium transition spectral line broadening spectrum in an unlocking state, even if the frequency of the lamp pump rubidium gas laser is unlocked, the lamp pump rubidium gas laser can be rapidly locked on needed laser frequency.

The invention discloses a system and method for collecting human health data in real time. The system comprises a health data measurer carried by a user, a data reader, an execution mechanism, a datamonitoring center, and an epidemic situation control center. Health code data can be transmitted to the health data measurer. The health data measurer is worn on a hand of a user. A wrist temperaturesensor is arranged in the health data measurer; the wrist temperature sensor can detect the temperature of the wrist of a human body in real time; health code data can be transmitted into the health data measurer through mobile phone Bluetooth communication. With the system and method, respiratory tract infectious diseases with large transmissibility can be prevented; the people with abnormal health data and people in close contact with the people with abnormal health data within 0-30 days in the past can be locked rapidly, and isolation measures can be taken rapidly, so that the infection source is isolated and a propagation path is cut off.

The invention provides a method for calculating the quantity of resources of continuous oil and gas reservoir based on space grids. The method comprises the following steps: dividing an evaluation area into a plurality of basic evaluation units in the space according to the similarity of geologic feature attributes; determining key parameters that each basic evaluation unit has obvious heterogeneity in a plane, and collecting space data of the key parameters in the evaluation area and carrying out space vectorization on the data; dividing each basic evaluation unit of the evaluation area into grids equal in size; endowing recovery ratio data to each grid by an EUR (Estimated Ultimate Recovery) evaluation or analogy method; carrying out interpolation on the space data of the key parameters in the evaluation area, and endowing key parameter data to each grid; calculating the quantity of geologic resources and the quantity of recoverable resources of each grid by adopting a volumetric method according to the key parameter data and the recovery ratio data of each grid; carrying out integration on all the grids and calculating the quantity of geologic resources and the quantity of recoverable resources of the whole evaluation area. According to the method provided by the invention, the evaluation precision and the primary evaluation efficiency of oversea blocks are improved, rapidness and convenience are achieved, and the production demands can be satisfied.

The present invention relates to a high power radio frequency connector capable of quickly locking and separating, a plug comprises a fixing ring, a collar, a sheath, a back-up ring, a large spring, asmall spring, a thread sleeve and a housing, the back-up ring is pressed and arranged on the housing, the thread sleeve connects the plug integrally, locking steel balls are evenly distributed in a circumferential hole of the fixing ring, outer side contacts with the sheath, and inner side contacts a bevel A on the collar, the large spring is mounted on inner side of the back-up ring, and the small spring is mounted on outer side of the back-up ring, the pre-pressure of the large spring is higher than that of the small spring, the sheath presses the locking steel balls in the fixing ring under press of the large spring and the small spring, a part pressing the locking steel balls at front end of the collar comprises the bevel A and a bevel B, and grooves are provided at front end of the butt joint interface of the socket. The invention has advantages of small butt joint locking force and separation unlock force, rapid butt joint and locking; large interface maintenance force, convenient locking and separation, high reliability, excellent mechanical and electrical property.

The invention discloses a rapid taking-off and landing device of an air vehicle. The rapid taking-off and landing device comprises an onboard device and a vehicle-mounted device, wherein the onboard device is arranged at the bottom of the air vehicle, and comprises a landing convex seat, an electric winch, a pulling rope, a cord weight, a dragging ball, a ball ejector, a photoelectric receiver and a taking-off and landing controller; the vehicle-mounted device is arranged at the top of a vehicle and comprises a landing concave ground, a ball falling hole, a locking device, a detection feedback device and a photoelectric transmitter; the landing convex seat of the onboard device and the landing concave ground of the vehicle-mounted device are in a funnel shape with an upward opening, and can be embedded and matched. The taking-off and landing controller can realize rapid and accurate capturing and dragging of the landing platform moving on the ground by the air vehicle according to a photoelectric signal state without human intervention, and the reliability of the taking-off and landing as well as the transportation and fixing of the air vehicle are guaranteed.

The invention relates to a system for measuring the height of a human body in a video image based on camera calibration and further discloses a method for measuring the height of a human body in a video image based on camera calibration. The system comprises a calibration point selecting module, a camera parameter calculating module, a body height measuring end point selecting module and a human body height calculating module. By the adoption of the system and the method, the height of a person erectly standing on the ground can be measured only by relying on monitored video image data after camera parameters and corresponding space transformation matrixes of the parameters are calculated. The height calculating process is simplified. The camera parameters are calculated according to the correspondence relation of image space coordinates and actual space coordinates of the same position point. The height of the person erectly standing on the ground is calculated by combining with the camera parameters and foot bottom point and head top point measurement end point information and utilizing a height calculating algorithm.

The invention provides an intelligent field unmanned plane search and rescue method and system based on double source video analysis. The intelligent field unmanned plane search and rescue method based on double source video analysis includes the steps: utilizing an infrared image to extract the candidate target and the region-of-interest ROI; using an improved deep convolutional neural network target detection framework Single-shot Multi-box Detector to perform optical target detection on the target region so as to locate the personnel to be searched and rescued; after locating the personnelto be searched and rescued, accurately delivering first aid materials; during the flying process, using LiDAR to perform autonomous obstacle avoidance; and based on detection of AprilTag, performing accurate autonomous landing. Mutual assistance between infrared and optical video analysis can effectively overcome the illumination factor, the shielding factor and other factors, so that the intelligent field unmanned plane search and rescue method and system based on double source video analysis can work all time so as to guarantee the search and rescue efficiency.

The invention discloses a multi-level freely telescopic rod. The telescopic rod comprises n levels of outer pipes, n levels of positioning elastic pieces, n levels of positioning pieces and n levels of rotating inner pressing pieces, wherein n is a natural number. The telescopic rod further comprises (n+1) levels of inner pipes, an (n+1)th level of outer pipe, an external rotating piece and a spring, wherein inner walls of each level of outer wall is evenly provided with a plurality of sawtooth-level positions, each level of positioning piece is provided with notches, one end of each level of positioning elastic piece is correspondingly fixed in each level of positioning piece, and the other end of each positioning elastic piece penetrates through the notches on each level of positioning pieces and is then clamped with the sawtooth level positions of each outer pipe. A non-level state can be considered as long as the sawtooth level positions of the inner walls of the outer pipes are dense enough, and the length of the telescopic rod can be extended according to occasion requirements. When the extended length is confirmed, motion is stopped, and the positioning elastic pieces and the sawtooth level positions are automatically locked after being clamped. When the rod is retracted, only the external rotating piece needs controlling, and a plurality of segments of the rod can be simultaneously retracted; and when operations are finished, the telescopic rod automatically returns.

The invention relates to dynamic image processing, in particular to a detection method for a body conflict event. The detection method comprises the following steps of: filtering an image in a relative static state by frame difference information of an image sequence to obtain profiles of motion objects; determining the quantity and the independence of the motion objects by carrying out filteringand noise reducing and then using an image projecting method; if the quantity of the motion objects is smaller than 2 or the motion objects are not crossed, showing that the body conflict event does not exist and otherwise carrying out accurate detection of the object bodies on the image, i.e. carrying out bidirectional motion estimation on the motion objects by using a block matching method; extracting a characteristic quantity of each motion object and constructing a behavior judgment model; and when the bidirectional motion characteristic quantity of at least one motion object respectivelymeets the judgment rule, showing the existence of the body conflict event and otherwise showing the inexistence of the body conflict event. According to the method disclosed by the invention, unattended condition and conflict event alarm in a monitoring area can be realized.

The invention discloses an odor evaluation method for automotive interior parts. Through larger sample sizes and higher test requirements, discrimination of an odor source is increased, so that contribution of a part assembly to the odor of the whole automobile can be investigated more visually. Compared to odor evaluation on material types, the method can quickly locate the whole automobile odor contribution source and achieve odor change, so that the problem of misjudgment caused by poor local homogeneity of constituent materials of the parts is effectively solved, and detection missing of a small number of the constituent materials or auxiliary materials of the complicated part assembly is prevented.

The invention belongs to the field of fixtures of milling machines and particularly relates to a locating fixture used for fixing pipe fittings. The pipe fitting locating fixture comprises a base plate and is characterized in that a limiting plate is arranged to be vertical to the base plate, a first clamping element is arranged on the limiting plate, a second clamping element is arranged on one side of the first clamping element, the first clamping element is connected with the second clamping element through a guide post, an eccentric cam used for locking is arranged on the base plate located on the outer side of the second clamping element, and V-shaped locating surfaces are symmetrically arranged on the first clamping element and the second clamping element. The pipe fitting locating fixture provided by the invention can be used for quickly clamping and loosening the pipe fittings, and the clamping elements can automatically reset to facilitate the installation of workpieces to be processed.

The invention relates to a natural gas hydrate rock core sample dwell transfer-type triaxial apparatus and a method thereof, which belongs to the technical field of natural gas hydrate base physical property measurement. The apparatus comprises a rock core transfer apparatus, a triaxial apparatus host, a confining pressure and aperture pressure control system, a computer data acquisition and a control system. By using the triaxial apparatus, a rock core is transferred from a sample storage device to the rock core transfer apparatus; the rock core transfer apparatus and the triaxial apparatus host are subjected to abutting joint and locked; a dwell rock core is transferred to a triaxial pressure chamber by the dwell rock core, an original plastic sleeve of the rock core is removed, and the rock core is sleeved by a rubber membrane, and pressure control and motion control are required during whole course of a hydrate dwell rock core transfer process. The apparatus realizes transfer of the hydrate dwell rock core, and realizes deposit intensity measurement under original cementation structure condition and consolidating condition of the hydrate, mechanical property of a practical storage layer is obtained, and the method has important meaning for revealing the destroy mechanism of the practical storage layer and evaluating the risk of exploitation geology of the natural gas hydrate.

The invention provides a mobile inventory system and a checking method of the same, for intelligent inventory and intelligent locking of specified object locations. The mobile inventory system includes a data management center and a mobile inventory device which are remotely communicated, wherein the mobile inventory device is used for mobile-scanning identifiable tags on each object in a warehouse; the unique identification code information of objects are written into the identifiable tags; the data management center is used for recording the attributes and the storage positions of the objects in the warehouse; during the inventory process, the information of the attributes and storage positions of the corresponding objects is obtained by means of mobile scanning and reading of the identifiable tags on the objects in each area in the warehouse; and the information of the attributes and storage positions of the corresponding objects is remotely sent to the data management center for comparison and recording, and then the warehouse stock inventory result can be obtained through analysis and integration. The mobile inventory system can intelligently and quickly position objects, can reduce the manual operation fault, can realize mass inventory, and can improve the inventory efficiency and reduce the inventory operation cost.

The invention provides a game virtual object locking method and device and electronic equipment. A game includes a specified virtual object; the specified virtual object executes a virtual action according to a game command received by a touch terminal; and a graphical user interface of the touch terminal includes a movement control area, a locking control and a game scene. The method comprises the following steps: controlling the specified virtual object to move in the game scene in response to a first touch operation specific to the movement control area; displaying a first aiming identifierin the graphical user interface in response to a second touch operation specific to the locking control; adjusting the presentation angle of view of the game scene in the graphical user interface inresponse to the movement of a touch point of the second touch operation, and determining a target virtual object in the game scene according to the first aiming identifier in the graphical user interface; and locking the target virtual object in response to an ending operation of the second touch operation. Through adoption of the game virtual object locking method and device, the technical problems that a user cannot rapidly and directly lock enemies and the user experience is relatively poor in an existing locking mechanism can be relieved.

The invention provides a large-scale energy storing device and a main circuit thereof. The main circuit comprises at least one energy storing unit; each energy storing unit comprises one converter and at least two DC (direct current) / DC modules; one side of the converter is connected with a power supply and the other side of the converter is connected with the DC / DC modules; each DC / DC module is correspondingly connected with a group of energy storing batteries; a monitoring platform comprises a background monitor, a coordinated controller and converter controllers as well as DC / DC controllers; and the background monitor is connected with the coordinated controller by an RS485 bus in a communication mode. The monitoring platform is of a layered distribution structure, and the coordinated controller is used for controlling the converter controllers and DC / DC controllers at the bottom layer uniformly, thus realizing the uniform coordinated action in the real-time control and avoiding the failure shutdown caused by uncoordinated actions.

The invention discloses a virtual object processing method and device, electronic equipment and a storage medium, relates to the technical field of game interface interaction controlling, and can be applied to the scene of a game where a target object is rapidly locked to further use abilities upon the target object. The method comprises the steps that a first touch operation of a virtual abilitybutton on a user interface is responded to generate a first ability area; multiple virtual objects in a current vision area and survival coefficients of the virtual objects are determined; the first virtual skill area is divided into multiple secondary areas corresponding to each virtual object based on the virtual objects and the survival coefficients; the secondary areas selected by a user are taken as the target areas, and the corresponding virtual objects of the target regions are determined as the target objects. The method has the advantages that moving objects in the game can be rapidlylocked to be taken as the target objects, and therefore the operation difficulty of locking targets of the user is reduced.

A phase detector is comprised of two cross-coupled gates which are capable of phase discrimination down to a level of approximately 10 picoseconds. An arbiter circuit, responsive to the cross-coupled gates, generates mutually exclusive UP and DOWN pulse signals. The UP and DOWN pulse signals may be filtered and used to control the delay line of an all digital delay locked or phase locked loop.