420results about How to "Strong independence" patented technology

The invention discloses a scanning type laser vision sensing-based narrow-gap deep-groove automatic laser multilayer welding method for a thick plate, relates to a welding method, and aims to solve the problems that the conventional structured light vision sensing-based welding method can only be used for a simple shallow-groove laser weld seam tracking task and that when the conventional structured light vision sensing-based welding method is used for the narrow-gap deep-groove weld seam welding of the thick plate, a covering phenomenon is easily produced, the groove identification accuracy is lower, only real-time weld seam alignment calibration can be realized and narrow-gap deep-groove laser multilayer welding bead planning and welding cannot be realized. The method specifically comprises the following steps of: 1, selecting a groove form; 2, scanning a groove section image of a thick plate workpiece to be welded by using an image scanning unit; 3, processing the acquired groove section image by using an image algorithm to obtain weld seam image data; 4, performing fitting calculation; and 5, finishing the welding of welding beads layer by layer. The method is used for the deep-groove weld seam welding of the thick plate.

The invention discloses an electric marketing service application system, and a construction method and platform thereof. The electric marketing service application system comprises an SaaS cloud platform, a PaaS cloud platform and an IaaS cloud platform; an electric marketing service application constructed based on a micro-service architecture is arranged on the SaaS cloud platform; the electric marketing service application comprises an interface micro-service, an API gateway and a micro-service set including multiple electric marketing micro-services; each electric marketing micro-service in the micro-service set uniquely corresponds to a corresponding basic service in electric marketing; and furthermore, any electric marketing micro-service is a micro-service, which is obtained by performing micro-service development of the corresponding basic service, wherein the architectural pattern of the micro-service architecture is an architectural pattern having the characteristics of independent development, independent testing, independent deployment and independent operation. By means of the electric marketing service application system, and the construction method and platform thereof disclosed by the invention, the fact that the electric marketing service application system can be suitable for rapid development tendency of current electric marketing services can be ensured.

The invention provides a vehicle lane charging assisting system and relates to a vehicle. The assisting system comprises an audio capturing unit, a video capturing unit, a radar capturing unit, a local vehicle information obtaining unit, a processor and a man-machine interaction terminal, wherein the audio capturing unit is used for obtaining audio information sent by a surrounding vehicle of a local vehicle; the video capturing unit is used for obtaining image information of videos around the local vehicle; the radar capturing unit is used for obtaining the position information of the distance and speed, relative to the local vehicle, of the surrounding vehicle; the local vehicle information obtaining unit is used for obtaining the information of the local vehicle in a driving state; the processor fuses and analyzes the audio information, the image information, the position information and the information of the local vehicle, predicts a traveling track of the local vehicle and a traveling track of the surrounding vehicle and judges whether the local vehicle and the surrounding vehicle have a collision risk or not; and the man-machine interaction terminal is used for sending collision warnings to a driver. Therefore, the burden of the driver is greatly reduced, and safety of the local vehicle in the lane changing process is effectively ensured.

The invention provides a robot autonomous walking method based on cloud computing. A cloud is used to control walking, and real-time matching correction of a position of a robot is realized. By adopting cloud control and ROS system computing, the autonomous walking and the autonomous map building of the robot are realized. By adopting the method provided by the invention, the autonomous route planning and the map building of the robot are realized. The method has advantages of high working efficiency, low cost, accurate positioning, high practicability and reliability, and less calculation quantity.

The invention relates to a symmetrical noncoherent distance measurement / time synchronism system of a cluster link two-way asynchronous communication channel, belonging to the autonomous technical field of aviation data links, radio navigation and aircrafts. By the invention, a symmetrical noncoherent distance measurement / time synchronism method and a system framework can be realized on a DSP (Digital Signal Processor) of a circuit board and an FPGA (Field Programmable Gate Array). Based on the two-way asynchronous communication link between cluster link member nodes, the noncoherent distance measurement / time synchronism system provides a noncoherent spread spectrum distance measurement principle of a two-way asynchronous communication frame under a comprehensive channel system, constructs a noncoherent spread spectrum distance measurement algorithm structure of the air fleet link two-way asynchronous communication frame in a uniform form by adopting a communication frame based on CCSDS Proximity-1 version-3 and provides two algorithms of base line measurement and time synchronism measurement control: an interprocessor time synchronism recursive algorithm and a Doppler integral compensation algorithm. The invention overcomes the defects of the traditional coherent transferring distance measurement and the two-way synchronous noncoherent distance measurement and provides a distance measurement scheme, in which both parts of the two-way asynchronous communication distance measurement can equally acquire a measurement result.

The invention discloses a medium and long term runoff forecasting method based on early stage meteorological factors and a data mining technology. The method comprises the steps of 1, determining various early stage primary election forecasting factors which influence medium and long term runoff, calculating correlation coefficients between all categories of primary election forecasting factors and a history forecasting object sequence, and extracting the factors with high correlation and high variance contribution as final forecasting factors according to a stepwise regression method; 2, establishing various forecasting models based on the data mining technology, taking a history final forecasting factor sequence and the forecasting object sequence as input and output of the different forecasting models and training the forecasting models; and 3, carrying out runoff forecasting according to the various forecasting models and comprehensively integrating a multi-model forecasting result through utilization of an optimal combination weighting theory. The method provided by the invention can be widely applied to water resource forecasting of which forecasting period is measure of ten days, a month, a season, a year and multiple years.

The invention relates to a multi-business supporting network switching device and an implementation method therefor. The device employs a multi-level CLOS switching configuration, and an input unit, an output unit and a switching unit are respectively provided with a buffer memory. The device can process a multi-business flow, and can achieve switching according to the business characteristics. The device can generate quick flow control in a congestion scene through the output unit, wherein the quick flow control acts on an input end, thereby reducing the congestion stress on the output end, and reducing the congestion degree of a central level. The device can reduce the input flow of a fault plane in a link fault scene through a load balancing scheme, and alleviates the congestion of the switching unit. An output unit package ordering method is employed, thereby reducing the design complexity of the switching unit. A data package cell load balancing method of the input unit is employed for enabling the time difference among cells to be small, thereby reducing the time delay of a data package, and reducing the size of the ordering and recombination buffer memory of an output end.

The invention discloses a multi-core parallel simulation engine system supporting joint operations. The system solves the problem that the real-time performance of a traditional joint operation system is easily influenced when step length is used to forward logic time. The system includes a model scheduling management module, a thread management module, an external interface management module and a high-level architecture (HLA) management module. According to the system, target nodes are assigned for simulation entities to enable total computation amounts of models on each node to be equivalent; then through the model scheduling management module, a scheduling schedule of each node is generated based on a principle of load balancing, the simulation step length is assigned for the models, and during a simulation process, the scheduling schedule is adjusted and the simulation step length of the destroyed entities and generated new entities is adjusted. The system can autonomously divide the scheduling schedule according to operating cycles of the models and the system step length, allow the entities to use the different physical models or the behavior models according to needs for simulation, and support real-time scheduling of large-scale simulation and the high-fidelity operation models.

The invention provides a design method for a power system stabilizer capable of suppressing ultra-low frequency oscillation. The design method comprises the steps that the operating frequency of the power system stabilizer is divided into an ultra-low frequency band with rotor angular velocity deviation delta omega as input signals and a medium-high frequency band with acceleration power deviation integral as input signals; the input signals of the ultra-low frequency band are screened and subjected to phase compensation; the input signals of the medium-high frequency band are obtained and subjected to phase compensation. According to the design method for the power system stabilizer capable of suppressing ultra-low frequency oscillation, two parallel branch structures are adopted and compensate for different frequency domain ranges respectively, the parameters of the two parallel branch structures are greatly independent with respect to setting, and the problem that an existing PSS is insufficient in damping within an ultra-low frequency domain is solved by means of adding ultra-low frequency branches.

The invention discloses a data flow correlation control method and an architecture of a computer numerical control system, namely DRC control technology. In accordance with the generation, transmission and execution of the control information processing flow and based on the movement command of the execution organism, the DRC control technology divides the numerical control technology into three levels, such as a PC system, a data flow controller and an execution organism. The PC system completes the user program compiler, trajectory numerical calculation, data control flow generation, data manifold optimization and data-flow distribution matrix generation, execution program generation, etc in off-line. The data flow controller operates the execution program and distributes movement command in real time. The execution organism carries out the movement command. The DRC control system realizes the real-time control of the soft opening and process parameter of the numerical control system, cancels the real time control function of the interpolation iteration control technology, and substitutes the control method and the architecture of the prior art taking the interpolation iteration control algorithm as core based on the real-time operation system.

The invention discloses a W-waveband dual polarized slot antenna working in a TM210 resonant mode and a feed network. A radiating part and a feed part are respectively composed of a radiation chamberand a substrate integrated waveguide. Characteristics of high Q-value and low loss of a metal radiating chamber and characteristics of easy machining and easy integration are combined. A metal chamberis used as a radiator which has high radiation efficiency and improves integral efficiency of the antenna. The substrate integrated waveguide is used as a feed structure and has advantages of easy machining, relatively simple realization of a multilayer structure, and can remarkably reduce cost when compared with a metal waveguide slot feed network. The upper surface of the metal radiator is provided with four independent radiating channels, and the lower surface is provided with a resonant chamber for coupling signals of a horizontal polarized feed structure and a vertical polarized feed structure into four independent channels, thereby realizing one-to-four same-phase feeding from a single coupling slot to four radiating channels, simplifying the feed structure and reducing complexity of the feed network.

A flexible tool for assembling a row-line chuck type wall board comprises a guide rail base, an X-direction driving unit and an upright post shape-adjusting assembly unit, wherein the guide rail base is fixedly connected to the ground; the upright post shape-adjusting assembly unit is arranged on two X-direction linear guide rails of the guide rail base and can move along the X-direction linear guide rails; and the X-direction driving unit is positioned between the bottom of the upright post shape-adjusting assembly unit and the guide rail base, is fixedly connected with the guide rail base and is connected with the bottom of the upright post shape-adjusting assembly unit. According to the flexible tool disclosed by the invention, aircraft panel assemblies are adsorbed, clamped and digitally positioned by a dot matrix vacuum chuck and stability and reliability in clamping and positioning and high positioning precision are obtained; and the digitalized positioning and drilling and riveting assembly of different wall board assemblies can be realized by reconfiguration through the dot matrix chuck of the tool. The flexible tool has higher practical value and broad application prospect in the fields of mechanical engineering / aircraft assembly.

The invention belongs to the field of a distributed real-time database and provides a real-time database hierarchical indexing method in a distributed environment. According to the method, under the condition of implementing the distributed real-time database, data storage servers correspond to hash key values and are connected end to end to form a ring-shaped hash space; and the data hierarchical indexing method is established, so that high-efficiency storage and retrieval of data in the database are ensured.

The invention discloses a transmission control method for the data processing of a real-time monitoring system, which is characterized by comprising the following steps of: 1) creating a priority transmission queue and setting an upper limit for transmission per unit of time; 2) dynamically adjusting a dequeuing sequence according to different data time delays in queues of various grades; and 3) in case of queue blockage caused by information avalanche, storing vital data in a mode of temporary data storage and retransmitting the vital data in idle time. The method avoids blockage on an application processing terminal by setting the upper limit for transmission, ensures the real time of the data through the priority queue and a dequequing control policy, ensures the integrity of data through a temporary data storage technique and an enqueuing control policy, is strong in commonality, free from limitation of operation system version and implementing instrument and high in independence, and can be added to the prior real-time monitoring system after modularization.

The invention provides a large power grid overall situation on-line integrated quantitative evaluation method based on a response. The method comprises a first step of acquiring power grid topology structural information from an SCADA system and an EMS system and establishing a corresponding relation between the power grid topology structural information and a WAMS system power grid component, a second step of acquiring present power grid operation method trend data from the SCADA system or the EMS system or a WAMS system or acquiring various preconceived trends or transient state fault time domain data from a DSA system, and a third step of dividing responding data into two operation scenes including a steady state (or a quasi-stable state) and a transient state (or a dynamic state) in a macroscopic mode, wherein static state stabilization situation assessment is carried out on a power grid through an on-line node-facing method, and transient state stabilization situation assessment is carried out on the power grid through an on-line unit-facing method. Static state and transient state comprehensive assessment indicators are constructed based on component class thermostabilization, electric parameter acceptable range and system class stabilization, the comprehensiveness and reasonability of the overall situation assessment indicators are improved, and the efficiency of overall situation integrated assessment is improved through the method that tasks are carried out at the same time.

The invention relates to a control system, method and device of an intelligent robot. The system comprises a control module and a monitoring module arranged on the intelligent robot, and a cloud service terminal arranged on a cloud server; the control module is used for acquiring information input by users and processing the input information through ROS nodes to generate logic control instructions or cloud service request data to control the intelligent robot; the monitoring module is used for acquiring performance data of the intelligent robot and condition data of all the ROS nodes and generating log information according to the performance data and the condition data; and the cloud service terminal is used for analyzing the cloud service request data to generate response information and returning the response information to the intelligent robot. In the control system, method and device of the intelligent robot, a distributive system architecture is adopted in the intelligent robot, so that each function unit achieves high independence and low coupling, and the code reusability is improved.

The invention relates to a method for realizing a heartbeat mechanism. The method comprises the following steps: sending a heartbeat request data packet to all clients by a server; after setting time, receiving the data packet in a non-blocking way by the server, if the server does not receive the data packet, determining that all the clients work abnormally, and returning to an initial step; if the server receives the data packet, analyzing the received data packet; and if the data packet is a heartbeat response data packet, determining that the clients sending the heartbeat response data packet work normally, and that the clients not sending any data packet work abnormally, and returning to the initial step, and otherwise, determining that the clients sending the heartbeat response data packet and the clients not sending any data packet work abnormally and returning to the initial step. The method has the advantages of strong independence and reliability, no limitation of bandwidth, simpleness, easy operation and strong universality.

Devices (1) comprising sensor arrangements (10) with field detectors (12) for detecting components (18) of magnetic fields in planes of the field detectors (12) and with movable objects (13) for, in response to tilting movements, changing at least parts of the components (18) of the magnetic fields in the plane; of the field detectors (12) are made less sensitive to in-plane stray fields by providing the fold detectors (12) with saturated field-dependent elements (31). The movable object (13) 1 nay comprise a movable field generator for generating the magnetic field, or the movable of object (13) and the field generator (11) may be different objects. The magnetic field is such that the field-dependent element (31) is saturated. The field generator (11) is smaller than the field detector (12), and the movable object (13) is larger than the field detector (12), to reduce alignment problems. The movable object (13) has a pivoting point close to the field detector (12).

The invention is applied to the field of video monitors and particularly relates to a method, a device and a system for achieving compatibility among multiple video monitor equipment. When the method, the device and the system for achieving the compatibility among the multiple video monitor equipment are carried out, the method includes that operating orders sent by users are received, the operating orders are sent to sub-processes corresponding to the video monitor equipment through a uniform interface of a host process according to equipment types which are corresponding to the operating orders, the sub-processes are provided with interfaces corresponding with the uniform interface, and when the sub-processes do not normally respond to the operating orders, the sub-processes are reset to continue to send the operating orders to the sub-progresses. The method guaranteed the stability of a video monitor system when a software development kit (SDK) provided by a manufacturer producing the video monitor is abnormal. Due to the fact that each sub-process corresponding to each monitor device is provided with the interface corresponding to the uniform interface, when another monitor device is added, only the SDK is needed to be added with a corresponding sub-process, and therefore strong independency and good expansibility of the video monitor system are guaranteed.

The invention discloses a power supply management integrated marine monitoring general data collector which comprises three parts including a power supply module, a master-slave control module and a sensor module, wherein the power supply module is mainly used for supplying energy to the master-slave control module and the sensor module, the master-slave control module is communicated with the sensor module through a field CAN bus and is used for managing and controlling the sensor module, and the sensor module is compatible with standard sensors with different interfaces and is used for transmitting sensor data and managing a power supply. According to the power supply management integrated marine monitoring general data collector, the sensor power supply management is integrated, interface sensors of digital quantity, analog quantity, switching quantity, pulse quantity and frequency quantity (partial low frequency) are effectively compatible, marine scientific instruments of hydrology, meteorology, chemistry and the like can be integrated and carried, and the design requirements of online observation and self-contained monitoring can be satisfied. During extended integration, only corresponding sensor modules need to be increased or reduced, simple application software is configured, and the effects of convenience and flexibility are achieved.

The invention discloses an inertia / vision integrated navigation method adopting a PSO (particle swarm optimization)-based CKF (cubature kalman filter). The method comprises the following main steps: Step 1, when a visual signal is effective, acquiring a dynamic video with a camera carried by a mobile robot and determining the speed of the camera by an image feature extraction and nearest neighbor matching method; Step 2, calculating the speed of the mobile robot according to a course angle measured by an inertia navigation system and in combination with the speed of the camera and estimating the speed and the accelerated speed of the mobile robot with the CKF; Step 3, updating time and measurement with the CKF according to measurement values and status values at all time of the system and selected filter parameter values, so as to obtain an estimation value of a status of the system; Step 4, optimizing filter parameters Q and R by using a particle swarm algorithm according to current objective function values and filter parameter values at all time and taking an obtained modification value as an input parameter of the CKF until an optimal status estimation value is obtained.

The invention relates to circuit arrangements for cable checking, cable testing, cable diagnosis and / or cable fault localization witha voltage source having a first voltage multiplier for a positive voltage and a second voltage multiplier for a negative voltagecurrent sources that are connected to one another in combination with the voltage multipliers to generate a test voltage over the load impedance of the cable to charge and discharge the load capacitance of the cable anda control device that is interconnected with the voltage source and the current sources anddevices with a circuit arrangement of that type.The circuit arrangements distinguish themselves, in particular, by the fact that arbitrary voltage curves of different amplitudes can be generated through the cable as the impedance acting as the test specimen.

The invention discloses a rotor magnetism gathering type two-stator field modulation permanent magnet generator, which sequentially comprises an outer stator (1), a rotor (3) and an inner stator (5) which are coaxial from outside to inside, wherein an outer air gap (2) is arranged between the outer stator (1) and the rotor (3), and an inner air gap (4) is arranged between the rotor (3) and the inner stator (5); the outer stator (1) comprises an outer stator yoke (11), outer stator teeth (12) which protrude from the inner surface of the outer stator yoke to the axis direction, and an outer stator armature winding (13) embedded into outer stator grooves arranged between the adjacent outer stator teeth (12), and the rotor (3) comprises a rotor core (31) and uniformly distributed rotor permanent magnets (32) embedded into the rotor core; and the inner stator (5) comprises an inner stator yoke (51), inner stator teeth (52), inner stator grooves, and an inner stator armature winding (53) embedded into the inner stator grooves. The two-stator structure provided by the invention can improve the space utilization rate and reduce the magnetic flux leakage of a magnetism gathering structure.

The invention discloses a distributed power line fault positioning system and method based on wave velocity dynamic measurement of traveling waves. A hand-in-hand distributed system architecture is adopted, in the case that the system has no central master station, when a certain measurement point cannot work normally, the system can still position a fault normally due to the multi-end redundant design, so that the reliability of the system is improved. The independently operating ranging devices can know the operation states and measurement results of other related devices, the measurement result of the present device can be verified, the positioning accuracy of the present device is improved, and the fault / abnormal node can be quickly discovered through mutual verification. Moreover, dueto the application of the hand-held distributed system architecture, bad data having great influence on the accuracy can be filtered and eliminated, and then the measurement precision and accuracy ofthe system are further improved. The actual wave velocity of traveling waves generated by the present fault is measured in real time by using the same type of power wires or power cables in an adjacent area of the fault point, thereby further improving the accuracy of positioning and ranging.

The invention relates to a method for collecting and processing map data of a micro-road network by using a portable data collection intelligent terminal carried by a bicycle or a power-assisted vehicle. The intelligent terminal is in transmission connection with a server arranged on a nearby map collection vehicle device. According to the method, the data collection efficiency of a scene where amotor vehicle cannot collect data can be improved, and the labor intensity of a data collector can be reduced, so that micro-road network update data required by a high-precision map is provided efficiently and accurately at low cost; and particularly, a more reliable data basis is provided for map path selection in a riding or walking mode.

The invention relates to a method for optimizing an automobile product development system based on hierarchical decomposition. The method comprises: determining an optimized product development target; transmitting the development target in the entire vehicle hierarchy to lower hierarchies, namely the system hierarchy and the component hierarchy; realizing synergistic optimized solving among various hierarchies; and realizing the flexibility of a development task and modularized execution of development subtasks by combing the method with a multidisciplinary design optimization method. The invention provides the method which has quick convergence speed and high solving quality and can simultaneously realize optimization of development performance indexes and a design proposal in the entire vehicle hierarchy, the system hierarchy and the component hierarchy.

The invention relates to a new method for identifying disturbance information of a large-scale interconnected power system, which comprises the following steps: (1) determining an observation space which comprises PMU measuring equipment arranged on a 500 kV transformer substation; (2) carrying out geographical zoning for the power system in accordance with regional administrative jurisdiction zones, emulationally calculating spread velocity of frequency shift (FS) corresponding to each observation point when large disturbance occurs in each zone, and establishing a dynamic frequency response characteristic database of the system; (3) detecting the time which the FS at each observation point reaches a given threshold value for the first time aiming at wide area frequency information obtained by collection or emulation after system fault; (4) identifying zones one by one, reading spread velocity vectors of the FS corresponding to the zones, bringing the vectors to the equations that s. t. f (x, y) is more than 0 (5), adopting an SQP optimization method to solve and identifying disturbance position and disturbance occurrence time, and treating all zones one by one, wherein t is more than tmin and less than tmax; and (5) comprehensively analyzing identification results and taking the disturbance position and time information corresponding to the minimum target function as the final identification result.

The invention provides a train collision avoidance system based on acoustic echo detection and a collision avoidance method thereof, relates to the technical field of track traffic and aims at solving the technical problem of the safety of a train running in a tunnel. The train collision avoidance system comprises an acoustic emission device, an acoustic receiving device and a signal control processing device. The collision avoidance method comprises the steps of utilizing an acoustic emission device to emit an acoustic detection signal to the front of the train, utilizing the acoustic receiving device to receive an echo of the acoustic detection signal reflected from the front of the train, analyzing the received echo of the acoustic detection signal, calculating the size of a front obstacle and a distance between the front obstacle and the train according to receiving-emitting time difference between the acoustic detection signal and the echo, the acoustic transmission speed and the train running speed and then judging collision risks of the train according to calculated results. The train collision avoidance system based on the acoustic echo detection and the collision avoidance method are especially suitable for application in urban metro lines.

The invention discloses a power distribution network abnormal line loss diagnosis method based on synchronous characteristics and improved K-means clustering. The method comprises: 1, collecting lineloss data of a certain line of a power distribution network; constructing three key indexes capable of reflecting abnormal reasons, namely a real-time line loss rate, an average line loss rate in nearly 24 hours and a line loss distortion rate; 2, classifying the features and reasons of the abnormal line loss, and preliminarily establishing a line loss abnormality diagnosis mode; 3, determining the number of clusters by adopting an improved K-means clustering method, and training the clustering model by using a large amount of sample data to obtain a clustering center; 4, mapping the labels ofthe clustering center to various abnormal reasons; and 5, finally, automatically diagnosing the newly acquired real-time line loss data of a certain line of the power distribution network according to the clustering center to obtain an abnormal reason. The method can quickly, effectively and automatically diagnose the abnormal reason of the regional line loss.

The invention relates to a plate type heat exchanger field experiment system taking unpurified water as a heat exchanging medium. The experiment system comprises a plate type heat exchanger to be detected, a heat pump, a load plate type heat exchanger, a self-washing filter, a water storage tank, a water replenishing tank, a water pump system, an unpurified water source and a pipeline connecting the parts. The invention can independently simulate the floating working situation of the plate type heat exchanger in an unpurified water source ground on the spot and has the advantages of compact system structure, energy saving, environment protecting and large working situation adjusting range. The experiment system can be used for carrying out the experiment research on the scale formation characteristics of the unpurified water and the scale formation countermeasure scheme in the plate type heat exchanger and the optimization design scheme of the unpurified water plate type heat exchanger. The experiment data acquired has important guiding significance on the long period safe and economic operation of the unpurified water plate type heat exchanger.