254 results about "Automaticity" patented technology

The invention provides an automatic vulnerability validation method. The method comprises the steps that firstly, validation information is collected, wherein an active detection way is adopted for carrying out information detection, topological detection, vulnerability detection and website directory structure detection on a target; secondly, the validation information is packaged, wherein suspicious vulnerability key information in vulnerability detection results is extracted, uniform-interface modularized packaging is carried out on the data; thirdly, a validation strategy is searched for, wherein according to the suspicious vulnerability identity and variety information, an appropriate attack script template and a vulnerability utilizing tool are selected; vulnerability validation is carried out, wherein scripts are called to be loaded into the packaged vulnerability information to carry out validation attack, and an utilization voucher is obtained and stored; fifthly, validation traces are removed, wherein validation attack traces are removed, sessions are recycled; finally, a scanning report is generated. The automatic vulnerability validation method solves the problem that an existing vulnerability scanning system is high in false alarm rate and cannot carry out effective validation, is automatic and procedural, can automatically recognize and validate vulnerabilities, lowers the requirement for the ability of non-professional staff and improves the vulnerability validation efficiency.

The invention discloses a hedgerow pruning manipulator with six degrees of freedom (DOP). The manipulator comprises a main swing mechanism, a pruning knife assembly and a supporting mechanism, wherein the supporting mechanism is fixed on a dragging vehicle, and consists of a base, a rotary component, a lifting component and a telescopic component; the front end of the supporting mechanism is fixedly provided with the main swing mechanism capable of doing gyroscopic motion; the output shaft end of the main swing mechanism is fixedly connected with a horizontal mechanical arm the front end of which is connected with a vertical mechanical arm, and the front end of the vertical mechanical arm is provided with a wrist joint; the output end of the wrist joint is fixedly provided with the pruning knife assembly; and a control system utilizes a control module which takes ARM series processors as the core to automatically control the joint operation of the horizontal mechanical arm, the vertical mechanical arm, the wrist joint and the main swing mechanism, so that the pruning knife can be operated along various tracks in space, thus realizing pruning operation of various form such as a spherical shape, a conical shape, a cylindrical shape, a plane, an inclined face, a wavy face and the like. The pruning manipulator has the characteristics of high automaticity, wide adaptability, energy conservation, environmental protection and the like, and is convenient to popularize and use.

Tools that provide quality assurance to improve the efficiency of developing software using a Finite Input Output Semantic Model (FIOSM, or herein referred to as a Semantic Model (SM) or Semantic Model Program) and automated reasoning services compatible with a semantic model. Exemplary embodiments of the tools allow a user to validate a semantic model and its related source software system and executable, while providing the enormous benefit of automating the quality assurance process. Instead of rigorous manual analysis of code to determine where a problem resides, the tools, through their relationship with the semantic model, visualize for the user on a display or in another tangible media where in the source software system a problem(s) resides.

The invention discloses a code static analysis-based data race detecting method and a system of the detecting method. The method comprises the following steps of: reading software to be detected, statically analyzing a source program of the software to be detected, and generating an abstract syntax tree, a control flow graph and a global function call graph of the software to be detected; on thatbasis, computing alias information in each function, outlet alias information among functions, lock assembly information, an access link of an access escapable variable quantity in each function and a thread building relational graph; computing a plurality of initialized sentence pair sets of a plurality of access nodes in every two threads; and gradually eliminating the sets according to the alias information, the lock assembly information and a concurrency relation to obtain a sentence pair which can finally have the data race. The detecting method and the detecting system can effectively detect the data race of a multi-thread program compiled by C / C++, thereby having the characteristics of high test precision and high automaticity, and being applied to detecting the data race caused bytwo threads or multiple threads.

The invention belongs to the field of dispatching automation systems and especially relates to a construction and application method of knowledge map of a dispatching automation system. The method comprises following steps: 1. the construction of knowledge map: the bottom-up and top-down combination method is used to construct the knowledge map of the basic platform and detailed business logic ofan intelligent grid dispatch control system; 2. the storage and maintenance of knowledge; 3. the display and application of the knowledge map: a front page shows the basic platform of the system and the detailed business knowledge map; the knowledge map of the basic platform shows the overall framework knowledge, and the knowledge map of the business logic shows the detailed logical relationship.The knowledge map constructed by the invention presents the abstract dispatching automation system business knowledge in a graphical manner, so that the user has an intuitive understanding of the business knowledge of the entire system. At the same time, users can operate the corresponding entities to selectively view the business knowledge they care about, with strong interactivity and availability.

The invention discloses a visual cognitive behavioral learning automatic training system of big and small mice. The visual cognitive behavioral learning automatic training system of the big and small mice comprises a training box, a main control unit, a video monitor, a microcontroller, a reward unit, a punishment unit, and a visual clue display unit. The microcontroller is connected with the main control unit through a universal serial bus (USB) interface in a communication mode. The training box is a structure that an opening is formed in the upper portion of the training box. The video monitor is arranged on the upper portion of the training box. The reward unit is composed of a food plate which is arranged on the lower portion of the training box, an infrared induction switch which is arranged on one side of the training box, and a water supply pipe which is arranged above the food plate and controlled by an electric control valve. The punishment unit is composed of a sweep frequency ultrasonic speaker which is arranged on the upper portion of the training box. The visual clue display unit comprises a capacitance-type touch screen and a display screen. The capacitance-type touch screen is arranged inside a frame. The lower frame of the frame is hinged with the side wall of the training box. The upper frame of the frame is connected with the side wall of the training box through a tension spring. The display screen is arranged at a rear position of the capacitance-type touch screen. The visual cognitive behavioral learning automatic training system of the big and small mice has the advantages that a visual cognitive behavioral learning automatic training to experimental animals is achieved.

The invention discloses a multipoint flexible positioning method and tool for automatic drilling and riveting assembly of a wallboard. The method comprises the steps of: positioning a long truss and a skin which constitute the wallboard on an automatic drilling and riveting system tool, adjusting poses of the long truss and the skin through adjusting each degree of freedom of the positioning tooland then making pre-positioning holes for connecting the long truss and the skin; dismounting the skin, carrying out deburring and chipping removing on the pre-positioning holes in the long truss andthe skin and coating flue in the gaps between the long truss and the skin; positioning the skin again and arranging pre-positioning nails in the pre-positioning holes; dismounting the pre-positioningnails one by one while riveting rivets one by one in the pre-positioning holes and then dismounting the wallboard in the multipoint flexible positioning tool. By means of the method and tool which are disclosed by the invention, the flexible adjustment of positioning points is realized; a special tool is not needed; the assembly period is shortened; the tool cost is saved; the assembly requirements of different types of wallboards can be rapidly responded; the assembly efficiency can be obviously increased; and the higher automaticity and assembly accuracy are provided.

A simulation experiment platform and an experiment method for motion of cord suspension parallel mechanism, mainly comprise a machine frame, a suspension platform, wire ropes, directive wheels, rope devices, plates and a detection control system. The directive wheel is installed on the top of the machine frame. One end of each wire rope is enlaced on the rope device, and the other end is connected to the suspension platform rounding the directive platform. Rope devices are installed on the plates, and the plates are fixed on the plate brackets at the two sides of the machine frame. The detection control system comprises tension sensors, stay rectilinear transducers, rotary encoders, an attitude reference, a wireless data collection launcher, a wireless data receiver, a PLC controller, a transducer and an industrial personal computer. The experiment platform can simulate the suspension platform dynamic behavior and wire rope strain change event when process during the suspension platform centroid eccentricity and wire rope operation speed out of sync, and can examine the control performance of the controller when the designed suspension platform is in a steady operation. The experiment platform and the experiment method have a tight structure, a small space usage and a high automaticity.

The invention discloses a water quality monitoring method and a water quality monitoring device based on an adaptive model. The method comprises the steps of obtaining remote-sensing reflectivity data to be processed, setting a characteristic threshold value to extract a water body area as a collecting and study area; obtaining water quality data of the collecting and study area, conducting least squares correlation analysis on different wave bands or band combinations, comparing correlation coefficients to obtain the most sensitive wave band or band combinations, and establishing an adaptive water quality monitoring model based on the most sensitive wave band or band combinations. According to the water quality monitoring method and the water quality monitoring device based on the adaptive model, the problems that an existing water quality monitoring model is lack of automaticity, systematicness and universality are solved.

The invention discloses an automatic elementary mathematic algebra type question answering method and system. The method comprises the following steps of: question input; question understanding: classifying each category of elementary mathematic algebra type questions and carrying out word segmentation and part-of-speech labelling on question texts; extracting a direct statement mathematic relationship by using a syntax-semantic hybrid model and adding an implicit type mathematic relationship according to question types so as to form an algebra relationship group; machine solution: distributing variables for entities in the formed algebra relationship group, converting the algebra relationship group into an algebra equation group, obtaining an entity-variable comparison table, and automatically solving the algebra equation group by a machine; and quasi-man answer generation: recovering semantic meanings of the variables in the algebra relationship group solution process according to solution sequences of the variables and the entity-variable comparison table, and combining the question texts to form a quasi-man answer process. According to the method and system, the automation degree of answering mathematic algebra type questions can be greatly improved.

The invention discloses a method for restoring ancient Chinese calligraphy and painting images on the basis of conspicuousness detection. The method includes the steps of A, subjecting an original image to guide filter enhancement processing so as to obtain an enhanced image; B, acquiring a conspicuousness area image capable of reflecting attention distribution of human eyes and a mask image from the enhanced image obtained in the step A; C, confirming a foreground and a background of the enhanced image obtained in the step A according to the conspicuousness area image and the mask image, and replacing the color of the background to achieve the purpose of restoring. By means of the theory that a mask image of an image sectional drawing formula corresponds to a diffusion image of an atmospheric scattering model expression formula one by one in forms, the mask image identical to the mask image acquired via an existing conventional sectional drawing method in effect can be acquired automatically via acquiring the diffusion image of the scattering model, the problem that most of existing mask image acquiring methods require labors to appoint the foreground and the background of the image is solved, and automaticity and instantaneity for image restoration are realized.

The invention discloses an urban rainfall flood preventing and treating intelligent control system and a control method. A road surface accumulated water level sensor, a river level sensor, a well and pond level sensor, a pipeline, a flow rate sensor and a flow sensor of a pump outlet and a speed adjusting frequency converter arranged on a pump are arranged. A central control unit is arranged and in signal and control connection with the road surface accumulating water level sensor, the river level sensor, the well and pond level sensor, the flow rate sensor, the flow sensor and the speed adjusting frequency converter. The central control unit is provided with a display with a big screen, a printer, an interface and a communication line, wherein the interface and the communication line transmit data with an upper controller. The control method includes the following steps that the control system is set and an initial value of the control system is set; a network line is opened, the central control unit is connected and the system operates; warning situations are dealt with in time; data is filed, settled and reported. The urban rainfall flood preventing and treating intelligent control system and the control method are suitable for monitoring, preventing and treating of urban drainage and rainfall floods, complete in structure, high in automaticity, easy to operate, timely and accurate in monitoring and capable of ensuring safety of urban drainage and flood control.

A single disaster could leave hundred thousands of people injured or even dead. In order for the rescue team to reach this knowledge they should send one of the team members to investigate the scene. Body Sensor Networks are emerging systems that can be easily used to measure patient's physiological data and communicate relevant data to other patient using their smart phones. We propose to use Bloom filters, a space efficient probabilistic data structure, for efficiently collecting the dynamic status of patients in a mass casualty scenario. The collected data is disseminated to all nodes in the network to make it available to the rescue team wherever they arrive. In particular, we show that the members of the most urgent cases found at each node are found to be very close to the set of the actual urgent cases.

The present invention enables testing the effect of one or more test agent(s) on one or more animal(s) of a group of animals, preferably insects, to identify agents that affect behavioral properties of the animals. The invention is comprised of the steps of providing animals suitable for testing, bringing those animals into contact with the test agent(s), moving the animals from a growth container to isolate them, prepare and separate the animals for singulation, relocated the animals to a behavior arena, subject the animals to behavioral tracking to assess their behavioral state, and removing the animals from the behavioral tracking to facilitate iterative analysis of further groups. The invention enables a method for preparing a therapeutic compound for the treatment of an animal disease.

The invention discloses a healthy type air purifier suitable for smart homes. The healthy type air purifier includes a purifier base, a controlling panel, a wind-in steel mesh, a lifting protective cover, a wind outlet, a wind-out mesh, a moving roller, an air-detecting device, a fiber-filtering mesh, an HEPA filter layer, a cold catalyst filter layer, an activated carbon filter layer, an automatic lifting and controlling mechanism, an anion fan and a humidifying fragrance activity device; and the controlling panel is embedded at the front surface of the purifier base, and the controlling panel is electrically connected with the air-detecting device, the anion fan and the humidifying fragrance activity device. The healthy type air purifier suitable for the smart homes has the beneficial effects that the automatic lifting and controlling mechanism is used for controlling the protective cover to automatically lift to show a wind inlet when the purifier is electrified to operate and further is used for controlling the protective cover to automatically fall to cover the wind inlet when the purifier is not electrified, the dust can be prevented from entering the purifier, the space is decreased simultaneously, the automaticity of the healthy type air purifier suitable for the smart homes can be effectively improved, and the service life can be prolonged.

The invention discloses a system for detecting interrupt-driven type program data competition, which comprises a front-end processor and a data race analysis engine, wherein the front-end processor comprises a disassembler, a morphology / syntax analyzer, a control flow graph constructor and a function call relation graph constructor, and the data race analysis engine comprises an interrupt priority analysis module, an interrupt state analysis module, a memory access analysis module and a race condition identifier. A static detection method is adopted in the invention, wherein a source code or assembly code is input; the detected program does not need to run; the method can be applied in the early stage of software development; the automaticity is high; and the interrupt enabled state is analyzed in iterative inter-process manner; through 'iteration', all the possible interrupt switching conditions can be extremely collected and the failed report of data race detection is reduced; and through 'inter-process', the function call and the influence of the interruption on the program state are regarded and the detection accuracy and the detection efficiency are increased.

Instructional systems are assumed to include one or more learners, human and / or automated, content, means of presenting information to and receiving responses from learners, and an automated tutor capable of deciding what and when information is to be presented to the learner and how to react to feedback from the learner based on configurable options and the current status of the learner model. This invention discloses a method for authoring and delivering highly adaptive instructional systems based on abstract syntax tree representations of the problems to be solved by learners and, of the requisite knowledge structures to be acquired. Authoring includes: a) receiving and / or constructing abstract syntax tree representations of essentially any kind of to-be-acquired knowledge (KR), b) methods for representing problem schemas in an observable medium enabling communication between tutors and learners and c) configuring the learning and tutorial environment to achieve desired learning. Delivery includes general-purpose methods for: d) generating specific problems, updating the learner model and sequencing diagnosis and instruction.

The invention discloses a method for detecting an appearance of a capacitance product, and also discloses a detector implementing the method. The detector comprises a rack, a feed delivery device, a take out device, a rotary table mechanism arm, a first detecting device, a first rejection area, a belt conveying device, a second detecting device, a push-off device, a second rejection area, a final qualified area and an industrial personal computer. The method provided by the invention can be used for quickly and accurately complete detection of the appearance of the capacitance product. The detector provided by the invention has a compact structure and high automaticity, a working condition of each component device is correspondingly controlled through the industrial personal computer so as to realize automatic detection of the appearance of the capacitance product, and the detector has high detection accuracy and fast speed; the labor intensity is reduced, the production efficiency is greatly improved simultaneously, the quality of products is ensured, the qualified rate of the products is improved, and the competitiveness of enterprises is enhanced.

The invention provides an automatic bag supplying machine, which is characterized in that: a bag attraction arm cylinder is arranged on the upper part of a rack and is connected with a bag attraction arm, a vacuum generator is arranged on the bag attraction arm, and the bag attraction arm and the vacuum generator are connected with a bag distribution sucker group; a bag warehouse, a warehouse moving cylinder and a straight-line sliding rail are arranged in the middle of the rack, the bottom part of the bag warehouse is connected with the horizontally arranged warehouse moving cylinder, and the bag warehouse is connected with the straight-line sliding rail; a lifting control motor is arranged under the rack, the output end of the lifting control motor is connected with a lifting adjusting screw rod, the lifting adjusting screw rod is connected with a lifting mechanism, and the lifting mechanism is arranged on a fixed plate at the bottom of the rack and is located right below a bag-taking operation position of the bag warehouse; and four corners of the two side faces of the rack are respectively provided with a gear, the gears are connected with one another through bull chains, and a stainless steel wire chain is connected between one sections of the two bull chains. The automatic bag supplying machine can automatically distribute and supply bags, has high automaticity, occupies less area, and can be directly connected to an original definite quantity packaging production line, so that the labor intensity of operators can be greatly reduced, and the production efficiency can be improved.

The invention relates to a system and a method for automatic in-situ monitoring on leakage of an underground sewage pipeline. The system provided by the invention comprises an upper computer for controlling and a resistivity feeler lever the bottom of which is provided with a cone head, the resistivity feeler lever is formed by splicing at least 5 pluggable nylon modules and copper pole rings which are clamped in the butt seam of two adjacent nylon modules, sliver is plated on the inner and outer surfaces of the copper pole rings, and the top of the resistivity feeler lever is provided with acollection control circuit and a wireless data transfer module; the collection control circuit comprises a control program and is connected with the copper pole rings by virtue of wires; a public network server and client software are matched with the wireless data transfer module. The monitoring method comprises the following steps: burying or penetrating a monitoring point positioned on the underground sewage pipeline into the resistivity feeler lever; and controlling the system to operate and automatically alarm when the leakage reaches the threshold by virtue of client software. The system and method provided by the invention integrates the functions of automatic collection, remote transmission, data storage, intelligent processing, automatic alarm and remote control, is simple to useand high in automaticity, and can be used for overcoming the defect on the real-time performance and accuracy of traditional methods.

The invention discloses a method for treating phosphotriester flame retardant wastewater. The method comprises the following steps of: regulating the pH value of the wastewater to be between 4 and 6, adding hydrogen peroxide into the wastewater, and performing catalytic oxidation under the existence of a surface catalyst; introducing the wastewater into a biochemical distribution reservoir, and regulating the pH value to be between 7.5 and 8; pumping the wastewater into a biochemical system, and removing total phosphorus pollutants in the wastewater while organic pollutants in the wastewater are degraded; introducing the wastewater into a secondary settling tank, conveying settled sludge, introducing supernate into a phosphorous removal reaction tank, adding a coagulant and lime, and after fully reacting, introducing mixed solution into a phosphorous removal settling tank; and discharging the supernate which meets the standard, and conveying the sludge. The method is performed at normal temperature and normal pressure, has a mild reaction condition, high automaticity and small equipment investments and is easy and convenient to operate; and after effluent is subjected to biochemical treatment, chemical oxygen demand (COD) of the effluent reaches discharge standard completely, and the effluent is subjected to chemical phosphorous removal, so that the total phosphorous of the effluent reaches the discharge standard, the pollutants are reduced to an extremely low level, the chromaticity is reduced substantially, so that excellent environmental effect is achieved.

The invention discloses a multistation rubber injection vulcanizing forming device, and belongs to the technical field of rubber processing machines. The technical key point is that the multistation rubber injection vulcanizing forming device comprises a rubber injector, wherein a conveying mechanism is arranged on the side edge of the rubber injector; a multistation mold moving automatic butt-joint positioning mechanism is arranged on the conveying mechanism; a rubber vulcanizer, a demolding mechanism and a product extracting mechanism are arranged on the side edge of the rubber injector along the conveying mechanism respectively; a mold moving mechanism is arranged on the rubber injector and the rubber vulcanizer; the multistation mold moving automatic butt-joint positioning mechanism moves along the conveying mechanism and corresponds to the rubber injector and the mold moving mechanism, the demolding mechanism and the product extracting mechanism on the rubber vulcanizer respectively; and a product output rail is arranged adjacent to the product extracting mechanism. The invention aims to provide a multistation rubber injection vulcanizing forming device of which each functional part can operate fully and which has high automaticity and compact structure, and the device is used for processing rubber tires.

The invention discloses a method for automatically generating a chess endgame based on a machine game technology. The method comprises the following steps: automatically generating random endgame library; establishing a future-situation game tree for each endgame in the generated endgame library, and generating all possible future situations based on legitimate policy sequences of two parties; analyzing all leaf nodes generated by the game tree to generate a valuating game tree and a victory valuating game tree; calculating the maximum tolerable amplitude of a critical path by calculating the number of root nodes and the number of subtree solutions to obtain final endgame difficulty assessment, and screening and recording according to a set threshold value. The method can be adapted to characteristics of mainstream chess games, and is used for establishing an endgame database with controllable difficulty; for the finally established endgame library, the accuracy rate reaches 95% or higher.

The invention relates to a test device for measuring the spray characteristic of a local application nozzle of a carbon dioxide fire-extinguishing system. The test device comprises a hoisting weighing device, a driving gas cylinder group, a nozzle test interface, an adjustable oil tray, a video monitoring system, a data acquisition processing system and the like, wherein the hoisting weighing device is formed by combining an electric hoist and an electronic weighing platform scale effectively to measure and record the chemical weight of a carbon dioxide fire-extinguishing agent bottle group automatically; the installation height of the nozzle can be adjusted within the height range from 0.3 to 4 meters by an adjustable rack lifting frame, so the requirement of test height of an overhead type local application nozzle and a trough rim type local application nozzle which are specified by the standard is met; and the area of the oil tray can be adjusted within the range from 0.5 to 1 m<2>by the adjustable oil tray. The test device is convenient to operate, high in automaticity and high in measuring speed, improves work efficiency, reduces test cost and saves test space.

The invention relates to an automatic labeling method for professional vocabularies of medical documents. which comprises the following steps: carrying out data preprocessing on an input medical document to obtain a preprocessed medical document text; obtaining and fusing the letter-level feature vectors, the word-level feature vectors and the language feature vectors of the words to serve as encoding vectors of the words; word annotations of the medical document text after word segmentation are classified to obtain an annotated data set; outputting a multi-dimensional vector for each word asa spatial representation of the word; obtaining an enhanced annotation data set; and performing training modeling, and finally outputting a marking result. method in design. A semi-supervised learning algorithm is adopted to label a large amount of unlabeled data so that the defect that the existing medical industry is too few in labeled data is successfully overcome. The amount of data capable of being used by the model is effectively increased. The labeling accuracy of the algorithm on keywords and professional vocabularies is greatly improved and the method can be widely applied to medicalliterature processing.

The invention discloses a method for preprocessing coal tar. The method comprises the following steps of: mixing the coal tar and an extractant A in a mass ratio of 1:0.5-1:4, heating the mixture to the temperature of between 50 and 150 DEG C, and performing continuous centrifugal separation on the obtained mixed solution in a sedimentation type centrifuge to obtain soluble matters and impurity-containing extraction insoluble matters. The method has the advantages of good impurity-removing effect, high utilization ratio of the coal tar (over 96 percent), simple process, high automaticity, andlow labor intensity, and suitability for large-scale preprocessing of the coal tar and comprehensive utilization and deep processing of full-cut coal tar which is the byproduct in industries such as coal chemical industry, coal gasification industry and the like..

The invention discloses a method for stimulating and displaying geological drilling information on a digital earth software platform. The method includes the following steps of standardizing drill data and establishing a database, setting three-dimensional modeling control parameters, generating drilling point positions according to borehole geographical coordinates, generating drilling layered scattered points according to drilling layered information, generating a tubular solid model according to the drilling layered information, constructing huge amounts of drilling model multi-scale expression mechanisms based on LOD, and conducting three-dimensional visualization, inquiry and analysis operations on the digital earth platform. The implementation process of the method is simple and high in automaticity, the generated drilling model is rich in information, high in interaction and good in visualization effect, and distribution, integration and sharing of the generated drilling model can be easily conducted on internet. The method is beneficial to geologists for showing and distributing their drilling information to other researchers, professionals and the public.

The invention discloses a production method for vaccines of avian influenza virus and other influenza virus such as swine influenza, dog influenza and equine influenza, which comprises the following steps of: (1) transfer of culture and cultivation of vaccine-made cells; (2) reproduction of vaccine-made virus seeds; (3) microcarrier suspension culture of MDCK cells in a bioreactor; (4) reproduction of vaccine-made virus liquid; and (5) harvest of the virus liquid. The production method has the advantages of reducing the production cost greatly and improving the yield and quality of the vaccines obviously, along with short production period, no restriction to raw material supply, small occupied area, easy and quick expansion of production scale, light environmental pollution, easy processing, high automaticity, low employment and easy realization of balanced and stable quality.

The invention provides a Top K query supported automatic service combination method. The method comprises the following steps that: a user submits a query request for the previous K best-quality service combination result, a service dependency graph is established according to the query request, input parameters and output parameters of multiple atomic services and matching relations among the atomic services, and the first optimal key path meeting the query request is found according to the service dependency graph; the first optimal key path is saved in a collection; the key path, of which the all quality of service (all QoS) is the best, is selected from the collection as the currently optimal key path, the corresponding service combination result is generated, the currently optimal key path undergoes relaxation operation, and a new key path is generated and saved in the collection; and the previous steps are repeated until the number of all service combination results already found meet the K value needed by the user. The system improves the automaticity of finding the optimal service combination result.