93results about How to "Reduce the risk of crashes" patented technology

The invention discloses a multi-process decoding method and a multi-process decoding system. The method includes starting a plurality of decoding processes; acquiring a plurality of decoding tasks; sequentially selecting a decoding task, acquiring load degree of each current decoding process according to related information, stored in a shared memory, of the decoding processes, and distributing the selected decoding task to the current decoding process with the lowest load for decoding. The problem that a single decoding process is easy to crash due to the fact that load balance cannot be achieved by multi-process decoding methods in the prior art is solved. The multi-process decoding method has the advantages that the decoding tasks are distributed to the decoding processes evenly to achieve load balance of the decoding processes, and accordingly, the risk of process crash caused by overload of a certain decoding process is reduced.

The invention discloses a commodity transaction system for two-dimensional pricing based on time / price of a commodity, a transaction match control method of a transaction server and a transaction system. The transaction server publishes two-dimensional changing information of the time / price of the commodity to a client and the two-dimensional changing information is used for representing the variation tendency of the price along the time; the transaction server is used for counting the commodity price corresponding to the current time and carrying out transaction operation for selling the commodity to the client. Therefore, the system provided by the invention not only reduces selling cost generated by the exchange of a commodity price label due to changing the price, modification of commodity introduction webpage and the like, but also is beneficial to increasing transaction efficiency and improving user experience because a costumer foresees the price in the future when the customer looks up the price label information of the commodity.

The invention discloses a network channel acceleration method and system. The method comprises the steps that a cache server is created, and website service content set by a network server is cached to the cache server; a user request for accessing the website service content is received from a user, and forwarded to the cache server; the cache server makes response to the user request, website content in response to a first user request which hits the website service content is back fed to the corresponding user, and a second user request which does not hit the website service content is forwarded to a website server; and the website server responds to the second user request, so that the website content in response to the second user request is back feeds to the corresponding user. Thus, the load of the website server is reduced, and especially the risk of breakdown of the website server when multiple users access the server simultaneously is reduced.

An embodiment of the invention discloses a data display method and device and aims to solve the problems that buffer caches are too small to buffer, data display is poor in effect and crash of the system or application programs are prone to causing by too large buffer caches. The data display method includes: initializing a cache threshold value of a buffer cache; monitoring memory usage to adjust the cache threshold value of the data buffer cache during display, wherein the cache threshold value is the ratio of the regional capacity used for caching data in the data buffer cache to the capacity of the data buffer cache. By the data display method and device, memory usage can be monitored in real time, the cache threshold value of the buffer cache can be adjusted according to the usage conditions. When the system has large memory space, the cache threshold value can be adjusted to be high, and data display effect can be improved. On the contrary, when the system has limited memory space, the cache threshold value can be decreased, and risk in crash of the system or application programs can be reduced.

The invention relates to the field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle autonomous landing method based on visual identification. The method comprises the steps of binocular camera correction and calibration, landing landmark selection, close-range landing landmark positioning and long-distance landing landmark positioning. According to the unmanned aerial vehicleautonomous landing method based on visual identification, the calibration process is simplified, the calibration precision is improved, and the positioning precision is guaranteed; and threshold segmentation is performed on an image by adopting a maximum between-cluster variance method, the threshold can be adaptively determined, calculation is facilitated, and two algorithms of short-distance landing landmark positioning and long-distance landing landmark positioning are respectively designed according to the distance between the unmanned aerial vehicle and the landing landmark, so the positioning precision of the unmanned aerial vehicle during autonomous landing is higher, and the risk of air crash caused by inaccurate positioning is reduced.

The invention discloses an underwater power supply suitable for a constant-current power supply type seabed observation network. The underwater power supply comprises a direct-current conversion cabinand a balance load cabin which are independent of each other, a main power conversion circuit and a constant power circuit are arranged in the direct-current conversion cabin; a balance load circuitis arranged in a balance load; an output end of the main power conversion circuit is connected with an input end of the constant power circuit, and an output end of the constant power circuit is connected with the balance load cabin, the main power conversion circuit is used for receiving electric energy provided by a shore base station through a submarine cable, converting constant current into constant voltage and supplying power to an electric load for a scientific instrument; the constant power circuit is used for controlling the constant-power output of the underwater power supply when load switching occurs in the electric load for the scientific instrument; and the balanced load circuit is used for converting redundant electric energy of the direct-current conversion cabin into heatenergy and dissipating the heat energy. The high common-mode voltage isolation and heat dissipation of an underwater power supply input port are realized by adopting encapsulation oil filling and a ceramic gasket, and the power supply is more suitable for a multi-seabed main base station and a long-distance large constant-current power supply network.

The embodiment of the invention relates to the technical field of unmanned aerial vehicle control, in particular to an unmanned aerial vehicle landing obstacle avoidance method and device, and an unmanned aerial vehicle. The unmanned aerial vehicle landing obstacle avoidance method comprises the following steps that: obtaining the point cloud distribution diagram of an area to be landed; accordingto the point cloud distribution diagram, determining a safe area in the area to be landed; in the safe area, determining a target position; and controlling the unmanned aerial vehicle to move to thetarget position to enable the unmanned aerial vehicle to be far away from an obstacle in the area to be landed. Through the above way, the embodiment of the invention can evade the obstacle in the area to be landed so as to reduce a risk that the unmanned aerial vehicle crashes.

The embodiment of the invention provides a signature of a file as well as a calibration method and device of the file. The method comprises the following steps: adding a private key of the file into ato-be-signed file to generate a temporary file including the private key of the file, and calculating the temporary file so as to acquire first digital signature information; adding the acquired first digital signature information into the to-be-signed file so as to generate the file with signature information; acquiring a to-be-calibrated file with the first digital signature information; addingthe private key of the file into the to-be-calibrated file, generating the to-be-calibrated file including the private key of the file, and calculating the to-be-calibrated file including the privatekey of the file to obtain second digital signature information; and comparing the second digital signature information with the first digital signature information, and judging that the to-be-calibrated file is an available file when the second digital signature information is identical to the first digital signature information. Through signature and calibration of the file, the security and thecompleteness of an installed firmware program are ensured, and the risk causing systemic collapse is reduced.

The invention relates to a server load control method and device, and the method comprises the steps: obtaining operating load data of an application server cluster; obtaining a load pressure value of the application server cluster according to the operating load data; determining a closable service corresponding to the load pressure value when the load pressure value exceeds a preset safety value; and transmitting a notification message of the closable service, so as to shield a data request of the closable service. The method and device can achieve the shielding of the data request of the closable service when the load pressure value of an application server is larger, so the method and device can reduce the load pressure of the server, and effectively protect a website from being collapsed.

The embodiments of the present invention belong to the technical field of unmanned aerial vehicle control, and relates to an unmanned aerial vehicle autonomous landing method, an unmanned aerial vehicle autonomous landing device and an unmanned aerial vehicle. The unmanned aerial vehicle autonomous landing method includes the following steps that: the point cloud distribution map of an area wherean unmanned aerial vehicle to land is acquired; a detection area in the point cloud distribution map is determined according to the actual landing area of the unmanned aerial vehicle in the point cloud distribution map, wherein the detection area refers to an area in the point cloud distribution map used for detecting the number of point clouds; the detection area is divided into at least two designated regions, each of the at least two designated regions is respectively corresponding to a portion of the area where the unmanned aerial vehicle to land; whether the number of point clouds in eachof the at least two designated regions is less than a preset threshold is judged; if the number of point clouds in a certain region in the at least two designated regions is less than the preset threshold, and the unmanned aerial vehicle is controlled to fly away from the designated region of which the point cloud quantity is less than the preset threshold, or the unmanned aerial vehicle is controlled to stopping landing. With the above method adopted, the local detection of the unmanned aerial vehicle can be realized, the accuracy of detection can be improved, and the risk of the crash of the unmanned aerial vehicle can be reduced.

The invention belongs to the mail delivery technical field and relates to an order information management system and an order information management method. The order information management method includes the following steps that: physical slow delivery orders issued by customers are acquired, and first mailing information is generated, and the first mailing information is transmitted to a cloud server; electronic slow delivery orders issued by the customers are acquired, and second mailing information is generated, and the second mailing information is transmitted to the cloud server; a personnel information database, an address database and an order database are built in the cloud server according to the first mailing information and the second mailing information; daily business lists are generated according to mapping relationships among the personnel information database, the address database and the order database; and the daily business lists are obtained periodically, and daily delivery business is executed. With the order information management method proposed by the invention adopted, the length of service of slow delivery business can be prolonged, and the delivery success rate of the slow delivery business can be improved, and therefore, the method has a potential for extending slow delivery business capacity on a large scale.

The embodiment of the invention discloses a management method of data, a server and a computer readable storage medium. The management method of the data comprises the steps of deleting key values corresponding to to-be-deleted buffering data in a buffering memory if an instruction for deleting the buffering data is detected; setting preset values as new key values, and making the new key values and keys corresponding to the to-be-deleted buffering data constitute key value pairs; storing the key value pairs into the buttering memory. According to the management method of the data, the situation that client sides concurrently access a database when data needed by the client sides is completely deleted due to the buffering memory can be avoided, and the risk that the database breaks down islowered.

The invention discloses a four-axis unmanned-aerial-vehicle flight control system, comprising a man-machine interaction interface of a ground station, an operation control system and an information processing system. The information processing system and the man-machine interaction interface are connected and can transmit data information to each other. The information processing system is connected with the operation control system via an input device interface and is connected with a data transfer radio. After receiving an operation command, the information processing system sends processed data information to the man-machine interaction interface for the purpose of display and control and meanwhile to a unmanned aerial vehicle and a piece of airborne equipment via the data transfer radio. By adopting the above structure, the operation interface is varied and the use cost of the unmanned aerial vehicle system is reduced. The airborne equipment on the unmanned aerial vehicle is under control, further reducing the system cost. The real-time fight data which is received from the flight control system is made full use of to conduct on-line fault prediction, thereby greatly improving the reliability of the unmanned aerial vehicle system and reducing the risk of air crash.

The invention discloses a tree barrier clearing aerial robot provided with rope suspended tools. The aerial robot comprises platform supports and operating tools, wherein the platform supports are symmetrically connected to a body, multiple rotor assemblies are connected to the platform supports, the bottom of the body is connected to a tool frame through a rope, tool motors are fixedly connectedto the tool frame, and output shafts of the tool motors are connected with the operating tools. The rotor assemblies and the naturally suspended horizontal operating tools connected with the rope aremounted on the body, the robot is suitable for performing 'haircut' type large-area rapid clearing from the top of a tree barrier from top to bottom or from one side of the tree barrier from outside to inside, is high in operation efficiency, avoids high-voltage power transmission lines in the position where an operator can contact the tree barrier in a short distance and is safer to operate, theclearing operation efficiency can be effectively improved, and the operation risk is reduced; the flexible rope is used for suspending the tools, vibration and impact of the operating tools are automatically isolated, and the attitude control stability of the aerial robot is effectively improved.

The invention discloses a block transmission method, device and equipment and a readable storage mediumand relates to the technical field of information, sorting node generation target block, generating a Merkel tree for the target block; and the Merkel tree and the target block header are sent to the endorsement node, so that the endorsement node can restore the target block based on the Merkel tree and the target block header, block transmission is not needed, the data volume transmitted between the sorting node and the endorsement node is reduced, the overlarge pressure of the node is avoided, and the risk of block chain crash is reduced. The method comprises the steps of receiving to-be-processed data transmitted by endorsement nodes, and sorting the to-be-processed data to generate initial transaction data; generating a target block based on the initial transaction data, and transmitting the initial transaction data to an endorsement node; and generating a Merkel tree according tothe target block, extracting a target block header of the target block, and transmitting the Merkel tree and the target block header to the endorsement node.

The invention provides a memory leak detection method, a device, equipment and a storage medium. According to the method of the invention, the life cycle of the to-be-detected object in the application program is monitored; determining a to-be-detected object total set and a to-be-detected object subset which has been recovered by garbage; and when a preset memory leak detection condition is met,judging whether a to-be-detected object which is not recycled by garbage exists in the to-be-detected object total set according to the determined to-be-detected object total set and the to-be-detected object subset which is recycled by garbage, and further obtaining a primary judgment result of whether memory leak occurs or not according to a judgment result. According to the method, the risk that the APP crashes due to memory overflow can be reduced, memory leakage is automatically detected, the learning cost is low, and the analysis efficiency is high.

The invention discloses a large-scale fiber grating sensor flexible multiplexing device based on OFDR. The device comprises a tunable light source, a main interferometer, an auxiliary interferometer,photoelectric detectors PD1 and PD2, a data acquisition unit and a control processing unit, wherein the tunable light source provides periodic scanning light with linearly changing wavelengths for themain interferometer and the auxiliary interferometer, the main interferometer comprises a reference arm and a measuring arm, wherein the reference arm is composed of a single-mode optical fiber and aFaraday rotator mirror connected to the tail end of the single-mode optical fiber, the measuring arm is composed of a plurality of identical weak reflection fiber grating sensors, the auxiliary interferometer comprises two paths of single-mode optical fibers with different lengths and Faraday rotator mirrors connected with the tail ends of the single-mode optical fibers, the data acquisition unittakes an auxiliary interferometer beat frequency signal acquired by the photoelectric detector PD1 as an external sampling clock and performs equal optical frequency interval sampling on a main interferometer beat frequency signal acquired by the photoelectric detector PD2, and the sweep frequency nonlinearity of the tunable light source is compensated. According to the scheme, on the premise that devices such as an optical divider and a photoelectric detector are not additionally arranged, flexible multiplexing of the single-channel multi-channel fiber grating sensor is achieved, and the device can be widely applied to multiple fields.

The invention relates to the field of aerospace engineering, specifically discloses a distributed power multi-rotor VTOL (vertical take off and landing) aircraft and a control method thereof. The aircraft comprises an aircraft body, a plurality of lift power units, a plurality of thrust power units, and a central flight control computer system, wherein the aircraft body is provided with a cowling covering outside the aircraft body; the lift power units and the thrust power units are uniformly arranged on the aircraft body and used for adjusting the attitude and speed of the aircraft; and the central flight control computer system is connected with the lift power units and the thrust power units and used for controlling the lift power units and the thrust power units to adjust the attitude and speed of the aircraft. Through uniformly setting a plurality of lift power units on the aircraft, the reliability, stability and disaster-tolerant capacity of the aircraft are improved, so that the aircraft still can fly normally when the components such as engines or rotors of the aircraft have mechanical failures, thereby reducing crash risk of the aircraft.

The invention discloses a cloud workflow management system (hereinafter referred to as a cloud workflow) supporting large-scale living example intensive applications, and belongs to the technical sub-field of workflow management and the technical field of cloud computation in the field of computer software engineering. The system mainly comprises the technical sub-fields of workflow process management, execution service, monitoring, load balance, early warning, automatic telescoping, execution service cloning, charging and the like under cloud computation environment; by utilizing cloud computation, the problem that the existing workflow management technology cannot elastically and economically support large-scale living example intensive workflow applications is solved; and the system is developed by using computer software technologies such as Java, HTML, CSS, Javascript and the like, integrates technologies such as Web services, an Eclipse Rich Client Platform plugin and the like, and is mainly used for business process management, business system integration and the like of government and enterprise units.

The invention discloses an obstacle avoiding method for an unmanned aerial vehicle, which is applied to a controller arranged on the unmanned aerial vehicle. A first detector mounted in front of the unmanned aerial vehicle always points to the connection direction of the unmanned aerial vehicle and a target point. When the first detector detects that an obstacle is located on the connection direction, each of other detectors respectively rotates and detects to the other set detection directions along the connection direction. The method comprises the following steps of: obtaining the detectiondata of each detector; determining whether an obstacle is located in each detection direction; and adjusting the unmanned aerial vehicle from the connection direction to a first detection direction when determining that the first detection direction is unobstructed, controlling the unmanned aerial vehicle to fly in the connection direction until determining that the connection direction is unobstructed by the detection data of the first detector. By applying the technical solution provided by the embodiment of the invention, the effective and autonomous obstacle avoidance of the unmanned aerial is realized, the risk of the unmanned aerial crash is reduced, and the flight safety of the unmanned aerial is enhanced. The invention also discloses an obstacle avoiding device for the unmanned aerial vehicle, which has corresponding technical effects.

The invention discloses a tree barrier cleaning flying robot with a suspended cutter system. The tree barrier cleaning flying robot comprises a flying platform, a suspension mechanism connected to thelower portion of the flying platform and the cutter system connected to the lower portion of the suspension mechanism. The suspension mechanism is a connecting rod with a fixed length or a telescopicsuspension mechanism with a variable length, and comprises L (L is greater than or equal to 2) vertical rods which are arranged in a bilateral symmetry manner, a transverse stiffening beam is arranged between the adjacent vertical rods, and the cutter system is an array combination of M (M is greater than or equal to 1) electric saw assemblies which are arranged in a bilateral geometric symmetryor mass symmetry manner; and an unhooking device capable of hooking or separating the suspension mechanism and the cutter system or the flying platform and the suspension mechanism is arranged betweenthe suspension mechanism and the cutter system or between the flying platform and the suspension mechanism. The tree barrier cleaning flying robot is suitable for implementing horizontal pushing typelarge-area rapid cleaning from the top of the tree barrier, the operation efficiency is high, an operator is prevented from getting close to a high-voltage transmission line at the tree barrier, andthe problems that in the prior art, the cleaning efficiency is not high, and the safety risk is large are solved.

The invention discloses a method and a device for releasing the memory of a user terminal, which relate to the technical field of the user terminal. The method comprises the following steps: when thememory of an operating system is found to be insufficient, the system priority, the occupied memory size and the user usage habit of the running application in the memory are counted; according to thesystem priority, the occupied memory size and the user usage habit obtained by statistics, the destruction application sorting of the destruction application running in the destruction memory is generated; according to the ranking of the destruction application, the destruction treatment is carried out on the running application in the memory. The invention optimizes the native memory recovery mechanism of the Android system, more reasonably adjusts the priority sequence of application destruction, ensures the important application of the system as far as possible, ensures the application being used by the user, and improves the stability of the system and the degree of user experience.

The invention particularly relates to a teaching information processing method. The teaching information processing method comprises the following steps of: transmitting, by a cloud server, first lesson program information and student information to a first teacher terminal, and transmitting first teaching program information and first teacher information to a student terminal; acquiring, by the cloud server, a first teaching connection request transmitted by the first teacher terminal, acquiring the first teaching information transmitted by the first teacher terminal when the student terminal receives the first teaching connection request, and transmitting the first teaching information to the student terminal; acquiring, by the cloud server, a first teaching connection disconnecting request transmitted by the first teacher terminal, and disconnecting the first teacher terminal and the student terminal; and acquiring, by the cloud server, second learning outcome information generated by the student terminal, transmitting the acquired learning outcome information to the first teacher terminal, acquiring first learning suggestion information generated by the first teacher terminal, and saving the second learning outcome information and the first learning suggestion information in a memory. By adopting the teaching information processing method, smoothness in communication of remote teaching information can be realized.

The invention discloses a tree barrier cleaning flying robot with a scissor fork type suspension cutter. The tree barrier cleaning flying robot comprises a flying platform, a suspension mechanism connected to the lower portion of the flying platform and a cutter system connected to the lower portion of the suspension mechanism. The suspension mechanism comprises a horizontally-arranged I-shaped frame, a telescopic device connected to the lower portion of the I-shaped frame in a hanging mode, and a lower connecting base connected to the lower end of the telescopic device and in butt joint withthe cutter system. The cutter system is an array combination of M (M is greater than or equal to 1) electric saw assemblies arranged in a left-right geometrical symmetry or mass symmetry mode. And anunhooking device capable of hooking or separating the suspension mechanism and the cutter system is arranged between the suspension mechanism and the cutter system. According to the tree barrier cleaning flying robot, the scissor fork type suspension mechanism capable of dynamically stretching and retracting is adopted for hanging the cutter system, the flying robot is suitable for implementing horizontal pushing type large-area rapid cleaning from the top of a tree barrier, the operation efficiency is high, and operators are prevented from getting close to a high-voltage transmission line atthe tree barrier; and problems that in the prior art, the cleaning efficiency is not high, and the safety risk is large are solved.

The invention discloses an easy-string-pressing guitar which comprises a guitar body and string pressing gloves. The guitar body comprises a guitar head, a finger plate, a resonance box and six strings. The finger plate is provided with a plurality of parallelly arranged fretwires. Six magnets are arranged between two random adjacent fretwires. The six magnets are arranged right below the six strings. The finger plate is provided with notches for placing the magnets. A thin sheet covers the surface of each magnet. A plurality of steel rings sleeve the strings. The steel rings are fixedly connected with the strings. The string right above each magnet is provided with a steel ring. The thin sheet is provided with a flat surface which abuts against the magnet, and an arc-shaped surface which abuts against the arc-shaped surface of the steel ring. The arc-shaped surface of the thin sheet is arranged on the surface of the magnet in a manner of facing the steel ring. The string pressing gloves comprise a left glove and a right glove. A soft cotton layer is fixed on the finger tip of the left glove. The cotton layer is connected with magnetic members. The magnetic members and the magnets attract each other. The finger nail of the right glove is provided with a guitar dialing piece which smoothly extends out. The invention provides the easy-string-pressing guitar.

The invention provides an information processing method and a device in a game. The method comprises the following steps: firstly, obtaining first load information of each virtual chat room operated by a chat server; secondly, determining second load information of the chat server based on the first load information of each virtual chat room; then, sending the second load information to a transitserver, wherein the second load information is used for providing a reference for the transit server to select a chat server for the client, and forwarding a chat room entry request of the client to the selected chat server; and finally, if the chat room entry request is received, determining a target virtual chat room allocated to the client according to the determined first load information of each virtual chat room operated by the chat server. Compared with the prior art, the load balancing of the chat server and the virtual chat rooms can be realized, the risk of server crash is reduced, the utilization rate of the server is improved, and the resource waste is reduced.

The invention belongs to the technical field of medical instruments, and provides a full-automatic artificial airway management instrument. The full-automatic artificial airway management instrument comprises a box, wherein the box is provided with an operation panel, an artificial airway air bag interface, an air bag upper drainage tube, a normal saline supply tube and a gas feeding / discharging tube; solenoid valves are separately arranged on the artificial airway air bag interface, the air bag upper drainage tube, the normal saline supply tube and the gas feeding / discharging tube; peristaltic pumps are further separately arranged on the air bag upper drainage tube and the normal saline supply tube; an air pump is arranged on the gas feeding / discharging tube; the operation panel, the peristaltic pumps, the solenoid valves and the air pump are connected with a CPU arranged in the box; and the CPU is further connected with a power supply module and a pressure acquiring chip. The full-automatic artificial airway management instrument is skillful in design and simple and convenient to operate; and the technical problems that in the prior art, when an artificial airway is used, the working intensity is large, and the operation accuracy is poor are solved.

The invention relates to the technical field of genealogical inheritance, in particular to an individual-oriented intergenerational inheritance data management system and method. The individual-oriented intergenerational inheritance data management method proposed by the invention comprises a user registration step, a file uploading step, a data storage step, an intergenerational graph generation and display step, a graph correlation step, a file downloading step and a data retrieval step. According to the method, a genealogical type independent genealogy compiling mode is broken through; all registered users are included in a unified tree genealogical diagram, or mutually independent genealogies are combined into a bigger genealogy; information channel advantages of the internet are fully utilized; and member data is linked in each member node of the tree genealogical diagram, so that users can obtain user information, intergenerational inheritance information, family culture data and ancestor history data more conveniently, visually and quickly, and officials or social organizations can conveniently perform history research based on the genealogy.

The invention discloses a client-service-oriented multinational game strategic decision simulation and deduction high level architecture (HLA) simulation system which can overcome defects of poor generality, low stability and complex operation in the prior art. All components of the system are connected into a local area network built with the HLA and a run-time infrastructure (RTI) soft bus as support technology; a plot generation module generates plots needed by the whole situation deduction; a practice management module manages and controls the deduction process, states of al parties and decision schemes according to the plots or instructions coming from a client of the director party; in each game, a client of the game playing party extracts a basic decision opinion collection from a decision scheme base through an official document editing module and sends decision opinions selected from the basic decision opinion collection and a self drawn action plan to the decision scheme base; and a simulation and deduction module performs deduction for the decision schemes collected in the decision scheme base to form a situation to be displayed in a comprehensive situation module.

The invention provides a game matching system, and belongs to the technical field of computers. The system comprises a plurality of control nodes, each control node operates at least one control process, and the control process is used for receiving a game request sent by a client and sending the game request to a corresponding matching process; each matching node runs at least one matching process, and the matching process is used for matching a corresponding client to a corresponding game server according to the game requests so as to play games; and the at least one monitoring node which isused for monitoring the running states of the control process and the matching process. According to the invention, the game matching efficiency can be improved, and the flexibility and disaster tolerance processing capability of the matching system are enhanced.