713results about How to "Guaranteed versatility" patented technology

The invention discloses a multi-strategy commodity recommendation system basing on context information. The recommendation system acquires the operation information of a user through an information acquisition part which is operated by the user, analyzes the operation action of the user and establishes the interest description model of the user. During the interaction process between the user and an electronic commerce website, a recommendation strategy fitting the present user and the context information of the system is dynamically selected according to a strategy selection rule. The recommendation strategy describes and generates a personalized commodity recommendation list according with the interest and the requirement of the user according to the interest of the user. Through the selection of the recommendation strategy, the multi-strategy commodity recommendation system basing on context information improves the adaptability of the system to various applications and system dynamic changes. And compared with the existing recommendation system, the multi-strategy commodity recommendation system basing on context information is improved in the recommendation quality, the recommendation scale and the recommendation performance.

The present invention discloses an energy-saving thermal comfort controller and a control method for heating, ventilating and air-conditioning systems based on thermal comfort index, energy-saving control and neural network arithmetic. Wherein, the controller calculates and displays thermal comfort index based on air temperature, humidity, wind speed, radioactive temperature and user activity details and wearing details. The air temperature and humidity are measured by a sensor. The radioactive temperature is equivalent to the air temperature. The wind speed is obtained by calculating input power of a fan. User activity details and wearing details are defined by users themselves or conform to default values. The energy-saving control method divides heating, ventilating and air-conditioning system into three operating phases, viz. quick refrigerating / heating, comfortable operation and energy-saving operation and provides corresponding set comfort index. In addition, the neural network arithmetic conducts calculation and outputs control signals according to difference between set comfort index and actual index to control the heating, ventilating and air-conditioning system respectively through a AC and a DC drive circuit, thus realizing the highest comfort and the lower energy consumption.

The invention discloses a CAN bus based controller network monitoring system and a monitoring method. The monitoring system consists of monitoring software, a monitoring microcomputer, CAN bus communication interface equipment and a monitored controller network. The monitoring software is operated on the monitoring microcomputer, and the monitoring microcomputer is connected with the monitored controller network by the CAN bus communication interface equipment. The monitoring software is of modular component structure consisting of a communication component, an application component, an application layer protocol network configuration database and a management component thereof, a message analytic component and a message encapsulation component. The system is compatible with the CAN bus communication interface equipment of different manufacturers and can configure the application layer protocol flexibly, count bus communication characteristics and analyze messages in a real-time manner during a monitoring process, display monitoring information in a real-time manner by drawing a signal graph, tracking signal data and a CAN message and counting bus communication characteristic parameters, and reproduce the whole monitoring process afterwards, which has excellent versatility.

The invention discloses an LX I embedded type reconfigurable general test platform capable of being used for an on-site test. The test platform mainly comprises a core control unit, an FPGA integrated test unit, an instrument function unit, a test program set, a Web server and the like. Modularized hardware design is reliably and tightly connected with a function module through a compact and firm portable machine box. The core control unit finishes control and communication of a whole system. The integrated test unit mainly completes logic functions of test instruments. The instrument function unit mainly completes conversion of signals. On the basis of LX I standard design, the test platform has multiple communication modes, is suitable for mobile tests, and facilitates secondary development. Hardware is designed in a modularized mode, and is compact in structure, small in size and low in weight. Software meets standards such as IVI, SCPI, ATML and the like, and is strong in generality. The instruments have the strong data processing ability and have functions of multi-channel parallel testing and online reconfiguration of the hardware and the software. What is needed is a browser during use of the instruments, the instruments can be operated remotely and the online reconfiguration of the instruments is achieved.

The invention discloses a flexible switching system for a vehicle welding production line. The flexible switching system is used for solving the problems of low operating efficiency and poor universality in a current vehicle welding production line. The flexible switching system comprises a piece supplying mechanism, a transition track, a storage mechanism, a rotating platform, a trolley, a steering track switching mechanism and a lifting track switching mechanism, wherein the piece supplying mechanism and the rotating platform are arranged on two ends of the transition track, the storage mechanism is arranged on two sides of the transition track, the steering track switching mechanism is mounted in a joint position of the storage mechanism and the transition track, the lifting track switching mechanism is arranged on the transition track, and the trolley can move among the piece supplying mechanism, the storage mechanism and the rotating platform. According to the flexible switching system, an operating speed of a welding production line is improved, and synchronous operations of the piece supplying and the welding are realized. The flexible switching system is suitable for the mixing-line production of various vehicles, so that the cost on equipment development and operation is lowered, and the efficiency of welding production is improved.

The invention discloses a task scheduling method and system. The method comprises the steps that a task template achieved by the adoption of plug-ins is utilized for creating a task, and the task is scheduled according to the real-time status of the task. Due to the fact that the task template achieved by the adoption of the plug-ins is utilized for creating the task, task expandability is improved, and the method can create the general task. In addition, due to the facts that the plug-ins exist in the task template, and mutual independence and expandability exist and permutation and combination can be achieved among template configurations and / or a parameter list and / or strategies and / or result responses, reuse of all the components is greatly achieved, task expandability is greatly improved, the universality of the task scheduling method is ensured, the expandability of a trigger event is greatly improved, working efficiency is improved, and the working cost is reduced.

The invention discloses a single camera calibration method based on road surface collinear three points and parallel line thereof, comprising the following steps: (1) building an image two-dimensional coordinate system and a ground two-dimensional world coordinate system; (2) in a traffic scene, selecting three points in straight roadway demarcation lines and parallel roadway edge straight lines as a calibration target, measuring the intervals among three points and the interval between two parallel straight lines, and obtaining the coordinate of the corresponding pixel of the calibrated target in an image; (3) calculating the angle of parallel lines in a ground world coordinate system; (4) calculating the focal distance and the depression angle parameter of the camera; and (5) calculating the coordinate conversion relation of each corresponding point in the image coordinate system and the ground world coordinate system to finally finish calibrating the camera. The invention does not need to put a regular calibration rectangle in a traffic scene, but only needs three points and the parallel lines thereof on a traffic marking. The method is simple and practical and has favorable pertinence and popularity.

The invention provides a modularized open PCBA (Printed Circuit Board Assembly) functional circuit test platform, system and method. The quality of a PCBA product is effectively controlled by using a half-automatic test manner. When a test table uses a needle bed and a relay switching group controlled by a single chip microcomputer to test different PCBAs, probes of the needle bed are reconfigured, and then one ends of the probes are connected with a relay, so that the expansibility is improved. In view of the system reusability, the test table matched with one type of the PCBA is pre-manufactured. When the PCBA is tested by only using the corresponding test table and opening an attest file, the test efficiency is greatly improved. A test instrument can be replaced according to test demands, so as to expand a system test function. The modularization open PCBA functional circuit test platform is a core of an entire test platform to control the operation state of the entire test process and is used for judging and recording the test content and result of each step, so that the test result is finally obtained. The modularized open PCBA functional circuit test platform is convenient to store and output the data.

The invention discloses a travel time fusion prediction and query method based on traffic big data, and the method comprises the steps: carrying out the offline calculation or training of data uploaded by all online vehicles to obtain various types of prediction models and parameters, and building and dynamically updating a data dictionary according to the prediction models and parameters; carrying out the call of the prediction models and parameters, and carrying out the prediction of the traffic state of a road network or a single vehicle through combining the real-time travel time data of a road segment and a path, wherein the data dictionary comprises a vehicle data dictionary, a road segment data dictionary and a path data dictionary, and the online vehicles are the vehicles which are registered to access to the network and automatically upload positioning and speed data. The beneficial effects of the invention are that the method solves problems that a road network or single vehicle traffic state prediction method in the prior art is poorer in instantaneity, universality and practicality, greatly improves the measurement precision, greatly improves the online prediction precision, and guarantees the instantaneity, practicality and universality in engineering application.

The invention discloses a semi-physical simulation experimental system for a quad-rotor unmanned aerial vehicle and an experimental method of the semi-physical simulation experimental system. The system is provided with the quad-rotor unmanned aerial vehicle. The quad-rotor unmanned aerial vehicle is arranged on a globe joint which is located at the top end of a three-degree-of-freedom aircraft rotary table and has universal performance; the geometric center of the quad-rotor unmanned aerial vehicle is provided with an airborne attitude sensor; the quad-rotor unmanned aerial vehicle comprises an airborne bottom layer control panel; the airborne attitude sensor and the airborne bottom layer control panel are respectively connected with a simulation controller system; and a virtual scene online display computer connected with the simulation controller system is also arranged. The method comprises the following steps of running Simulink software in a host machine by utilizing modules and controls in a Matlab real-time tool kit and building a block diagram of a model for the simulation controller system, wherein the model comprises four subsystems: a subsystem for reading airborne sensor data, a subsystem for generating the virtual displacement of the quad-rotor unmanned aerial vehicle, a flight control algorithm subsystem and a control command transmission and virtual display interface subsystem. According to the semi-physical simulation experimental system for the quad-rotor unmanned aerial vehicle and the experimental method of the semi-physical simulation experimental system disclosed by the invention, the development cycle can be greatly reduced, and meanwhile, the flight experimental cost is saved.

The invention provides an Internet-based intelligent mobile charging system and method. The system comprises a breakdown van APP, a charging breakdown van, a fault car APP and a rescue platform, wherein the breakdown van APP comprises a user module, an order module, a monitoring module and a communication module, the charging breakdown van comprises a controller, a GPS device, a DC charger, an AC charger and a metering module, the fault car APP comprises a user module, an order module, a payment module and a communication module, and the rescue platform comprises an access module, an order executing module, a vehicle screening module, a breakdown van monitoring module, a bill management module and a user certification module. The Internet-based intelligent mobile charging system can fulfill the one-key rescue function, improve the rescue speed, enhance vehicle dispatching accuracy and efficiency, completely avoid mandatory consumption and mandatory service, improve the transparency and timeliness of the rescue service, and improve service experience and service quality.

The invention relates to a fault recognition and processing method based on a satellite-bone bus. The method of the invention comprises the following steps: firstly, determining the fault type of a satellite, telemetry parameters related to various fault types and a range of normal values of the parameters; then setting the maximum times that the telemetry parameters related to the various fault types exceed the range of the normal values, and storing security instruction groups for removing faults corresponding to the various fault types in an instruction library; collecting the telemetry parameters of each device of the satellite by the satellite-bone bus at a set time, and when the telemetry parameters related to a fault type are abnormal and the abnormal times exceed the set maximum times, judging and entering the fault type; obtaining the corresponding security instruction group from the instruction library, and judging whether the security instruction group is executed; if the security instruction group is executed, clearing the corresponding abnormal count values of the telemetry parameters until the execution of the security instruction group is finished; and if the security instruction group is not executed, sequentially executing every security instruction in the security instruction group until the execution of the security instruction group is finished. The invention has the characteristics of good real-time performance and strong versatility.

The invention discloses a template-based interface autogeneration method and system. The template-based interface autogeneration method comprises the following steps of: inputting common controls, interfaces, buttons, pictures and other objects which are designed in advance and available attributes of the objects into a database, converting XSD (XML (eXtensible Markup Language) Scheme Definition) configuration files into Flash-readable AMF (Action Message Format) files, pushing the AMF files into a foreground, and taking corresponding objects and attributes thereof out from the database to autogenerate a user interface. The template-based interface autogeneration method and system disclosed by the invention realize the purposes of out-of-browser interface display and cross-platform of interfaces and has the capability of flexibly generating the configuration file forming interface as required. In addition, due to the unique dragging function of Flash per se, users can design interfaces which accord with the using habits of the users again according to the self demands.

The invention discloses an intelligent home system which comprises an individual LAN (Local Area Network) coordinator and a plurality of terminal nodes, wherein the individual LAN coordinator comprises an equipment attribute list, an in-network equipment attribute registration module, an Ethernet service module and a node interface module; the in-network equipment attribute registration module generates an in-network equipment attribute list according to equipment identification codes of the terminal nodes, the corresponding home equipment state data and the equipment attribute list; the Ethernet service module is used for sending all item data of the in-network equipment attribute list to the Ethernet and for receiving control instructions corresponding to the equipment identification codes and equipment index number from the Ethernet; and the node interface module is used for receiving home equipment state data of all terminal nodes and for sending the control instructions corresponding to the equipment identification codes and equipment index number received from the Ethernet to the corresponding terminal nodes. According to the intelligent home system, all home equipment can be controlled through an intelligent terminal in a coordinating manner.

The invention discloses a motorcycle type identifying method in a complex scene, which comprises the following steps of: initializing a component dictionary of a video image, learning a parameter of each component in the component dictionary, calculating an optimal composition structure according to the learned parameters of the components and an XOR searching tree, training and integrating vehicle templates by adopting the optimal composition structure, and detecting and identifying a motorcycle type in the video image by using the vehicle templates. According to the motorcycle type identifying method, the optimal composition structure of the vehicle templates is learned by adopting a dynamic planning algorithm, the XOR searching tree and a large quantity of actual samples, thus the efficiency of training the templates is increased, better discrimination is achieved, and actual application is facilitated. According to the motorcycle type identifying method, by combining a Latent SVM (Support Vector Machine) algorithm and a robust HOG (Histograms of Oriented Gradients) characteristic, the motorcycle type in the complex scene can be processed, and instantaneity and generality are ensured.

The invention discloses a method for detecting the distance measured ahead, which includes the following steps: S1. Using a visual sensor to collect image information in the direction of travel of the vehicle, and using machine vision to detect the above-mentioned collected image information to obtain the target in the image information area; S2, in the target area in the image information acquired by machine vision, use the edge feature to extract the specific position of the front vehicle in the image information, and then use the corner point detection method to determine the position of the pixel point of the front vehicle in the image information; S3 1. Calculate the actual distance between the front vehicle and the self-vehicle by using the monocular vision ranging geometric model; the invention can be used to detect the distance of the front vehicle under different driving speeds and different lighting conditions on structured roads, and the invention is universal High, good robustness, fast calculation speed, simple implementation.

The invention discloses a communication interface of network household electrical appliance, wherein the communication interface is connected with network household electrical appliance and an independent communication module, the communication interface is connected via four lines, via asynchronous serial half-duplex communication to complete data communication, the connecting lines of four-line connection comprise a signal receiving line, signal sending line, an earth line, and a power line. The invention also discloses a relative communication method for transmitting control command from communication module to network household electrical appliance, comprising that (121), the communication module sends a control frame to the network household electrical appliance, (122), the communication module judges if receives a feedback frame of the network household electrical appliance, if receives, ending the communication, or not receives after waiting for preset maximum waiting time T1, entering into step (121). The invention also discloses a method for using network household electrical appliance to send report message to the communication module.

The invention discloses an intelligent home system based on cloud service and ZigBee technology and a design method thereof. The system adopts a browser / server (B / S) architecture, uses Apache as a Web server, uses Mysql as a database, stores a corresponding data record, converts the data into a Json format, then communicates with an Android mobile phone through HTTP and achieves related data transmission through a ZigBee protocol stack of the TI company, the ZigBee protocol stack transmits the received data to an Android home gateway through a serial port and transmits the data to the server through the HTTP, and a mobile phone client is connected with the server to synchronize all data and display home building conditions in real time. The intelligent home system disclosed by the invention mainly solves a ZigBee set-point control problem, a communication problem of a ZigBee coordinator and the home gateway and a remote control problem.

The invention relates to a numerical-control combined gear milling and hobbing machine for machining a large-modulus gear and application thereof. The machine comprises a numerical control computer and is characterized in that a disc milling cutter and a hobbing cutter are fixedly arranged on a cutter bar, and a cutter bar gasket group is arranged between the hobbing cutter and the disc milling cutter; one face of an angular sliding plate is abutted with a cutter holder through a Y-shaped guide track and a guide groove, the other face of the angular sliding plate is supported on a vertical sliding plate through an A-direction bearing and a bearing, and the other face of the vertical sliding plate is abutted with an upright column through a Z-direction guide track and a guide groove; the upright column is abutted with a bed body through a guide track which is arranged horizontally in an X direction and a guide groove; a gear blank workbench is supported on a bottom surface through a C-direction shaft and a bearing which are engaged with each other; and clamps are arranged on the gear blank workbench. Under the control of the numerical control computer, the machine can perform the milling operation and hobbing operation on a gear with the modulus more than or equal to 15 mm in one step, so as to greatly increase the work efficiency.

The present invention relates to a fall protection device used in the process of climbing steel tower of power transmission line. Said full protection device includes the following several portions: large hanger, small hanger, endless rope, delta wire-lock fastener, pear-shaped fastener, small tackle and safety hook. Said invention also provides a fall protection method by using said fall protection device and its concrete operation steps.

The invention discloses a three-dimensional ultrasonic image segmentation method based on machine learning. The method comprises following steps of sampling different regions in multiple groups of marked two-dimensional images, taking an image segment which takes a certain pixel point as a center, and the category represented by the pixel point as a group of samples, establishing many data samplesthereby and dividing the samples into a training set and a test set; constructing a convolution neural network as a classifier, and training the convolution neural network by taking the image segmentas input and the category of the pixel point as a tag; using the trained classifier to process data of the test set and calculating accuracy, estimating the performance of the classifier; adjusting parameters of the convolution neural network, repeating training and estimating processes for many times, and finally, taking an optimal result as the parameter of the classifier; and using the trainedclassifier to process the whole picture, and dividing pixel points in the image into different categories, thereby achieving segmentation of the image.

The invention discloses a multi-time scale electric vehicle clustering schedulable capacity prediction method. The method is characterized in that the method includes the following steps: establishing a real-time electric vehicle clustering schedulable capacity prediction model on a distributive parallel big data processing platform, using real-time state data, acquiring the result of real-time electric vehicle clustering schedulable capacity prediction based on the prediction model; based on the result of real-time electric vehicle clustering schedulable capacity prediction and feature data of symptom feature attributes, performing correlation analysis, extracting the feature data and establishing a data set, establishing the parallel big data algorithm on the distributive parallel big data processing platform, using the big data algorithm and the data set to establish the current electric vehicle clustering schedulable capacity prediction model. According to the invention, the method brings the advantages of big data parallel processing into full play, can provide strong data support for grid multi-time scale scheduling, electric vehicle charging and discharging control and gird reliability.

A real-time personnel positioning device based on a wireless sensor network relates to the technical field of wireless sensor networks. It comprises a positioning terminal (1), a positioning base station (2) and a host computer (3), wherein the positioning terminal (1) is connected to the host computer (3) through wireless signals, and the host computer (3) is connected to the positioning base station (2). Its positioning equipment takes into account both indoor and outdoor conditions, suitable for non-line-of-sight transmission and long-distance transmission, low-cost equipment, low power consumption, and high positioning accuracy.

The invention discloses a vehicle target three-dimensional information acquisition method based on a PTZ pan-tilt camera. The vehicle target three-dimensional information acquisition method includes the steps: identifying a vehicle target in a video frame through a deep learning method; and obtaining coordinates of a three-dimensional envelope reference point of the vehicle target in an image coordinate system, drawing a three-dimensional envelope frame which is most suitable for the vehicle target according to the coordinate information and the constraint of the horizon, and calculating three-dimensional size information of the vehicle target by utilizing a calibration result, thereby finishing acquisition of three-dimensional information of the vehicle target. The vehicle target three-dimensional information acquisition method can adapt to different road traffic scenes, and uses the pan-tilt camera to extract a large number of vehicle targets in the scene to complete the process of three-dimensional information acquisition. The vehicle target three-dimensional information acquisition method is simple to implement and good in universality, can be applied to three-dimensional information acquisition in various road scenes, and is accurate in result.

The invention discloses a file data transmission device and method used for a cloud storage system. The file data transmission device comprises a data server and a server side. A virtual machine monitor operating on a server side constructs a sealed computing environment according to the requirements, and returns the admission information of the sealed computing environment to a client side. A user automatically constructs a second secret key, and transmits the encrypted second secret key to the sealed computing environment, and the sealed computing environment obtains the second secret key through deciphering. The file data is encrypted according to the second secret key so as to form data stored in a cloud side. The sealing computing environment can obtain the second secret key through deciphering and then decipher the encrypted file data, and the file data deciphered according to the fist secret key is then encrypted so as to be transmitted to the client side. By utilizing the technical scheme provided by the invention, the file data is in a encryption state in the entire data transmission process, the sealed computing environment can decipher and encrypt file data in a sealing state so as to further enhance the privacy of the data of the user.

The invention provides an oil-gas-water three-phase multifunctional detection system. The system comprises an oil-gas-water separation and storage tank, a gas flow generating and regulating device, a liquid flow generating and regulating device and a multifunctional well casing device, wherein the oil-gas-water separation and storage tank is a device used for separation of oil-gas-water mixed fluid, liquid storage and liquid parameter adjustment, the gas flow generating and regulating device is a device for generating gas, providing power for flow of gas, indicating gas flow, and regulating the gas flow to enable the flow to be constant, the liquid flow generating and regulating device is used for providing power for flow of liquid, indicating liquid flow, and regulating the liquid flow to enable the flow to be constant, and a replaceable shaft is arranged in the multifunctional well casing device and is driven by the multifunctional well casing device to deflect.

The invention provides a stay cable force measuring device and a measuring method therefor. The device is simple in structure, and no expensive high precision equipment such as sensors is needed; a corresponding relation between cable force of a stay cable and radial elastic stress is adopted by the device, a contact type displacement sensor with guaranteed measurement accuracy is adopted for measuring variation of radial deformation and displacement before and after specified radial pressure is applied on the stay cable, and the cable force of the stay cable is measured via a pre-established function relation model between the cable force and deformation under stress; whether the stay cable is in installation processes or is put into use after installation, the cable force of the stay cable can be measured; based on a measurement principle adopted by the device, measurement precision can be prevented from being affected by interference factors such as span, sag, vibration, environment electromagnetic waves and the like of the stay cable; high measurement precision can be guaranteed, universality can be well ensured, convenience of use and operation is realized, and a new solution is provided for measurement of the cable force of the stay cable which is put into use after installation.

The invention discloses an open-cast mining GPS truck intelligent dispatching system and belongs to the technical field of open-cast mining digitizing mining. The open-cast mining GPS truck intelligent dispatching system comprises an intelligent terminal, a wireless communication system, a 100M network communication system, a GPS, a system general control server, a UPS, an electronic map system, a dispatching management system, a centralized control system, a core module and a network reporting system. The whole process of loading, conveying and unloading is controlled and managed by the open-cast mining GPS truck intelligent dispatching system through a computer and reasonable configuration and application of various production resources are achieved automatically, so that the purpose of intelligent truck dispatch with the highest efficiency, the lowest consumption and the largest output is achieved. Enhancement of production organization, intensification of stope management, improvement of production and adaptation of capacity change are further accelerated. Device management is strengthened, device guaranteeing capacity is improved, enterprise management is strengthened, management improvement is accelerated, improvement of production efficiency is achieved, production cost is reduced, a management level and a decision-making level are improved, and the open-cast mining GPS truck intelligent dispatching system lays the foundation for a digital mine.

The invention provides a management method of self-starting disaster recovery plans and a searching system. According to the invention, by universalizing assemblies, all factors are abstracted as all kinds of factors, irrelevant to business, like point, line and face in the computer field, and are uniformly processed and analyzed, and visualization operation is executed, so universality and uniformity of a platform are ensured. When there are a few of factors and disaster types are different, large quantity of resources will not be wasted and operation efficiency can be ensured. By combining real-time information and emergencies, the optimal path can be corrected in real time, and much more time can be gotten. The plan starting judging procedure is optimized, and the system will give out a plan starting alarm according actual front-end monitoring data or numbers of early warning in all places, so it can be avoided that the plane will not be timely started due to missing of specific information during the searching process. By overlaying the layer information and calling related data, information reference is provided. According to the data affected by plan execution results, dynamic adjustment can be performed in real time, selection of the optimal path can be corrected in real time and the management method and the searching system have higher application value.

The invention discloses a method, a device and a system for realizing universal single sign-on. A service middle layer universal to different single sign-on products is arranged between an access system and a single sign-on authentication server; and when the service middle layer carries out authority authentication on the access system in a single sign-on mode, the service middle layer receives the access request of a user browser, the identity token contained in the visit request is submitted to the single sign-on authentication server for verification, and in addition, the authentication results returned by the single sign-on authentication server are received. Through the method, the device and the system, the interaction between each access system and the service middle layer is not the direct interaction with the single sign-on products, and in addition, the service middle layer provides the universal single sign-on mode, so the universality of the single sign-on is ensured, and the authority authentication can be carried out on each access system in a unified way.