228results about How to "Guaranteed correctness" patented technology

The invention relates to a wall plate processing technology for hyperboloid thin wall, belonging to the field of the mechanical processing technology. The process of producing the thin-wall wall boardwith double curved surfaces comprises the steps of rough finishing by a three-coordinate numerically controlled milling machine, heat-treating, semifinishing by a five-coordinate numerically controlled milling machine, natural aging, finishing by the five-coordinate numerically controlled milling machine, finishing on a vacuum platform and process boss cutting. The margin of the parts can be eliminated evenly and the deformation of the parts can be reduced to the maximum extent by adjusting the parameters including the processing allowance, the processing speed, the milling mode and the likein each numerically controlled procedure. The difficult problem of part clamping and positioning is solved by adopting the vacuum absorbing platform integrally having a cambered surface to absorb andprocess the parts.

The invention discloses a data storage system, a query method, a query device, a server and a storage medium and belongs to the Internet field. The data storage system comprises multiple servers serving as block chain nodes in a block chain network, wherein a target block chain is configured on the servers, and the servers receive a personnel information storage request; the personnel informationstorage request is sent to multiple servers serving as endorsement nodes in the data storage system, and all received storage responses and the personnel information storage request are submitted to servers serving as bookkeeping nodes in the target block chain; the servers serving as the bookkeeping nodes verify all the storage responses based on endorsement strategy information of the data storage system; and when all the storage responses conform to the endorsement strategy information, target blocks are generated based on the personnel information storage request, and the target blocks areadded into the target block chain. In this way, the reliability and authenticity of data are guaranteed.

The invention discloses an authorization method, a device, a device and a medium of a digital asset. The method comprises the following steps: receiving an access request to a target digital asset initiated by an application program, wherein, the application program logs in as a user identity in advance; responding to the access request, initiating a permission request to the block chain accordingto the information of the access request, and receiving the permission information returned by the block chain, wherein the block chain records the authorization information of the user's identity tothe target digital asset; returning the right information to the application. The method records the correspondence relation in the block chain in advance, which can relatively guarantee the reliability and correctness of authorizing the digital assets according to the correspondence relation, and further reduces the difficulty of copyright protection of the digital assets. In addition, the invention also provides an authorization device, a device and a medium for digital assets, the beneficial effects of which are as described above.

The invention discloses a distance protection method for a power transmission line containing a unified power flow controller. According to the method, a complex neural network algorithm or synchronous measurement phasor information on the two sides of the line is not required to be adopted, the voltage and current on the same side are used only, in cooperation with an R-L differential equation algorithm, the distance from a fault point to a mounting position of a relay protection device can be obtained through calculation, faults inside and outside regions can be recognized according to fault distance calculation results and fluctuation degree thereof, and influences of UPFC operation modes and control parameters are avoided, so that the accuracy of protection action behaviors is guaranteed, high convenience and reliability are realized, implementation is easy and a good application prospect is realized.

This invention discloses a realizing method for ending call service in a phone call continuous service including: S402, a service call session control functional entity transmits a session set-up request to a domain selecting functional entity in a phone call continuity application entity, S404, the domain selecting functional entity selects domains according to the request and adds the selection result to the request to forward it to a service call session control functional entity, S406, the control functional entity transmits the request with the domain selection result to other application servers to execute service logic process to get the session set-up request, S408, the control functional entity sends the request to a domain switch functional entity in the continuity entity for session anchoring, S410, the control functional entity receives the request from the domain switch functional entity and forwards it to a phone call continuity user device or a circuit domain network where the user device locates.

The invention relates to a Modbus protocol conversion device based on 3G (The 3rd Generation Telecommunication) Internet access, belonging to a protocol conversion device in the technical field of Internet. Aiming at the instable problem of 3G dial-up access, in order to ensure the correctness and transparency of data transmission during Modbus protocol conversion, the invention adopts the Modbus protocol conversion device based on 3G Internet access. A remote server, a protocol conversion device and data acquisition equipment are needed for hardware architectures. A 3G script completes dial-up access, and a PPP (Point to Point Protocol) automatically detects the network. When the Internet is turned off or a Ping (Packet Internet Groper) is illogical, automatic redial is conducted. Data communication between the protocol conversion device and the server adopts a Modbus TCP (Terminal Control Protocol), and data communication between the protocol conversion device and the data acquisition equipment adopts a Modbus RTU (Remote Terminal Unit) protocol. Transparent data transmission is realized, the protocol conversion device can quickly detect abnormal disconnection of the Internet and automatically connect the Internet to ensure stable and lasting operation, and the protocol conversion device can be used in more environments.

The invention provides a method and a device for processing communication charging. The method comprises: according to a charging strategy of each communication service, generating a charging strategy block; sending the currently generated charging strategy block to each user terminal node; according to expense recorded information of each communication service of each user terminal node in a preset time period, generating a user phone bill block; sending the currently generated user phone bill block to each user terminal node, to make the user terminal node identify the user phone bill block; according to an identification result sent by each user terminal node, when the currently generated user phone bill block is determined to be correct, generating a charging bill according to the charging strategy block and the user phone bill block. The chain mode of the charging strategy block and the user phone bill block ensures that a charging strategy in current time and information in a user phone bill would not be tampered. The user terminal node can identify information in the user phone bill block, so that a user terminal knows whether communication charging has faults.

The invention relates to an electric energy quality collecting device and the application of the electric energy quality collecting device in an electric energy quality comprehensive analysis system. The electric energy quality collecting device comprises a power module, a signal input module, a time tick module, a data collection and analysis module, a back plate data bus and an Ethernet port. The electric energy quality comprehensive analysis system is a background manager provided with embedded electric energy quality steady state/transient state synthetic analysis software and receives electric energy quality steady state data and transient state data transmitted by the device in real time to analyze the electric energy quality, and the electric energy quality comprehensive analysis system is high in real-time performance, misses no disturbance events, and can rapidly extract signal envelopes, accurately position transient state characteristics such as the starting time, the duration time and the amplitude of disturbance of the transient state electric energy quality and ensure correctness of extracting transient state information. By applying the synthetic analysis combining the steady state and the transient state of the electric energy quality, the defects that an electric energy quality transient state algorithm is poor in real-time performance and large in calculation quantity can be made up, causes of electric energy quality transient state events can be accurately positioned, and safe and stable operation of an electrical power system and electrical equipment can be ensured.

The invention provides a synchronizer self-learning identification control method and a vehicle synchronizer position verification control method based on the synchronizer self-learning identification control method. According to the synchronizer self-learning identification control method, forward and reverse rotation of a gear selection and shifting motor are controlled, the voltage change of a gear selection and shifting position sensor is monitored so as to identify the state of a synchronizer reaching extreme positions, the voltage value of the position sensor when the synchronizer is at each extreme position is recorded, and therefore self-learning identification of gear selection information and gear shifting information of the synchronizer is realized. According to the position verification control method, when a speed changer reaches a bottom line, a vehicle runs for a certain period of time and the vehicle cannot be started normally due to gear selection and shifting, the synchronizer self-learning identification control method is adopted for learning and identification of the gear selection information and the gear shifting information. By means of the synchronizer self-learning identification control method and the position verification control method, the problem that the synchronizer is inaccurate in position because of multiple factors is effectively eliminated, gear selection and shifting of the vehicle can be based on a correct synchronizer position, and therefore the correctness of gear selection and shifting of the vehicle is guaranteed.

The invention discloses a device for realizing the compatibility of multi-edition of software configuration data of a base station and an application of the device. The device comprises: a communication module, a data processing module and a document configuring module, wherein, the communication module is used for obtaining the existing edition number and the configuration data corresponding to the existing edition from the base station and sending out and submitting the corresponding configured data of the object version transformed by the data processing module to the base station; the data processing module is used for obtaining the corresponding configuration data of the existing edition from the communication module and obtaining the corresponding empty configuration data of the object edition from the document configuring module and writes the value of each sub-item in the corresponding configuration data of the existing edition according to a preset mode into the corresponding empty configuration data of the object edition; the document configuring module is used for storing the related configuration documents of the object edition in advance. The device realizes the automatic compatibility of the configuration data of different software editions during the edition of the base station upgrading process, thus simplifying the upgrading complexity of the base station and effectively ensuring the correctness of the upgrading of the configuration data.

The invention provides a lane line detection method based on straight lines with the maximum length.The lane line detection method includes the steps that 1, the lower half of a driving image is cut out, and edge detection is conducted on the lower half, an image is obtained after edge detection, and Hough straight line expansion is conducted on the image obtained after edge detection; 2, the straight lines, with the maximum length, located at the left side and the right side of the vertical center line of the image are selected from straight lines obtained through Hough straight line expansion; 3, the straight line, with the maximum length, on the left side is used as the left edge, the straight line, with the maximum length, on the right side is used as the right edge to define a binarization processing region, and the binarization processing region is processed in a binarization mode to obtain a binarization graph; 4, Hough straight line detection is conducted on the binarization graph, and the left and right straight lines close to the vertical center line of the image are selected as the true left and right lane lines.Color and shape information of lane line markers is fully used, and correctness of detected lane lines is ensured by using the method based on the straight lines with the maximum length and gray scale verification.

The invention provides a processing method of malicious affairs of a database system and a system thereof, aiming at the problem that the security is weak and the response efficiency is low when the prior database system faces the attack of the malicious affairs. An affair restoration log system independent of the original log system of the database is set, the executing history of affairs is recorded in the unit of an affair when the affair is submitted, and then the legality of the submitted affair is determined on the basis of the content recorded by the affair restoration log; when an invading malicious affair is detected, all the data affected by the malicious affair are searched by retrieving the affair restoration log and are restored, and the operation result of the unaffected affairs remains, thereby ensuring accuracy and usability of the database system. The after-set processing mode of the method and the system can limit the efficiency derating in an acceptable range, ensuring the timely response of the database system to a user's request.

The invention discloses a data loading method and a data loading device, which belong to the field of databases. The method comprises the steps of: creating a partition table according to partition types, wherein the partition table comprises partition fields; reading data to be loaded line by line; obtaining partition fields of the data in the line according to partition information in the partition table; determining the subordinative partition of the data in the line in the partition table according to the partition fields of the data; and loading the data in the line into the corresponding partition. The device comprises a creating module, a reading module, an obtaining module, a determining module and a loading module. The method and the device disclosed by the invention have the advantages that the partition fields of the data are obtained according to the partition information of the partition table, the subordinative partition of the data in the partition table is determined, the data in the line is automatically loaded into the corresponding partition, and the automatic data loading on a distributed file system is realized, so the data is ensured to be loaded into the correct partition, and the data loading error caused by the manual partition specifying is avoided.

The invention discloses an SOA (Service-Oriented Architecture) and WebService based data migration method. The method comprises the steps of establishing a WEB service and realizing a service operation. According to the method, when data migration is carried out, a WEB service of a source database is called, data is extracted one by one from the source database, the data consistency is verified,a source data structure of an interface is filled with the data, then a WEB service operation of a target database is called, the source data structure is converted into a target data structure, and the target data structure is inserted or updated to the target database. The method is suitable for dynamic migration of multi-platform heterogeneous data; and by packaging service logic and isolating the data, in online migration and incremental migration modes, stable, secure and dynamic migration of the heterogeneous data can be ensured, the data migration efficiency can be improved, the data migration cost can be reduced, and the data migration demand of not interrupting services can be met.

The embodiment of the invention discloses a method for visiting a server operation system and a device for visiting the server operation system; a safety verification device is installed in a server operation system, and contact information of an administrator is prestored in the safety verification device; after receiving the first login request sent by the client for visiting the server operation system, the first login request carries with a user name and a password; the user name and the password in the first login request are verified; after passing the verification, the verification code is sent to the corresponding device of the contact information according to the contact information of the administrator; after receiving the second login request sent by the client for re-visiting the operation system, the second login request carries with the user name, the password and the verification code; the user name, the password and the verification code carried in the second login request are verified; if the verification is successful, it is allowed to visit the server operation system. Through the safety verification twice, the safety of visiting the server operation system by the administrator is effectively promoted.

The invention relates to a detection method for the acute biological toxicity of drinking water contained in a plastic bottle, belonging to the technical field of drinking water detection. The method comprises the following steps: preparing a bacterial liquid used in tests from a fresh bacterial liquid or a bacterial liquid of freeze-dried powder, preparing a drinking water sample liquid, a control sample liquid, and a detection sample liquid for a plastic bottle, preparing a set of sample parallel samples by using the drinking water sample liquid or the detection sample liquid for the plastic bottle, then preparing a set of control parallel samples, adding 0.1 ml of fresh bacterial liquid or 0.05 ml of bacterial liquid of freeze-dried powder to each set of parallel samples, respectively placing for 15 min, determining the illumination intensity of one sample in each small test cup by a luminescence detecting device, and then calculating the relative illumination intensity. Compared with the prior art, the invention uses a freshwater luminescent bacterium peculiar to China, Vibrio-qinghaiensissp, as a detection strain, and the luminescent bacteria can grow and give out light without sodium chlorides. The invention has the advantages that the physical and chemical characteristics of the samples can not be changed, the correctness of the tests is ensured, and the detection speed is high.

The invention relates to a real-time low-bit rate video transcoding method based on H.264, belonging to the field of multi-media signal processing and mainly solving the problem that the transcoding speed is demanded to be high at low bit rate. Video transcoding in the invention is divided into an off-line modeling stage and an online transcoding stage; a model identification technology is utilized to select a macrolbock prediction model; the macrolbock prediction model selection process is a category decision-making process in model identification; and extracted characteristics are input into a classifier to obtain a classification result, i.e. a macroblock prediction model. The classifier is obtained through offline training. The method not only can remarkably accelerate the transcoding speed but also ensures the quality of a recoded image to meet the demand of real-time performance. The invention is suitable for the fields of wireless video monitoring, internet video monitoring and wireless video on demand.

The invention relates to the field of communication, and discloses a method for enhancing random access. In the method, UE receives high-speed downlink shared control channel command HS-SCCH order transmitted by a base station node Node B, and the UE corresponding to UE ID carried by the HS-SCCH launches enhanced uplink access with rising power according to an access leading signature corresponding to an uplink transmission resource number carried by the received HS-SCCH order or an access leading signature corresponding to an access leading signature number. Meanwhile, the invention also discloses a communication system and the UE. With the method, the communication system and the UE, the invention can ensure that initial transmission power of the UE is more accurate during uplink transmission, and is beneficial to accurate transmission of uplink transmission and quick completion of uplink synchronization.

The invention discloses a risk recognition method for operating vehicle road traffic accidents. The method includes: establishing a database of the operating vehicle traffic accidents, extracting risk sequences of an accident chain reaction, and constructing a random Petri network model of the accident chain reaction; conducting a system performance analysis by employing an isomorphic Markov chain; regarding road transportation enterprise traffic accident statistics data and operation management data as initial data, calculating the generation probability of risk accidents by employing fuzzy Delphi and Bayesian inference methods, and guaranteeing the correctness of the calculating result from two aspects of logic and calculation; and recognizing an accident chain in need of key monitoring via the comparison of the path risk degree. According to the method, the accident coupling conversion characteristics can be revealed, the key risk paths for the operating vehicle road traffic accidents are recognized, corresponding risk sequences and risk degrees are provided, and high practical guidance values are provided for risk recognition and early warning of the operating vehicle road traffic accidents.

The invention discloses a method for converting an aircraft assembly process tree by means of an MBOM tree structure, and aims to provide a multi-dimensional MBOM conversion method based on an AOE network, wherein the multi-dimensional MBOM conversion method occupies few system resources and is high in sharing degree. The method is realized through the following technical scheme: constructing a manufacturing material list MBOM and an MBOM conversion adapter based on the AOE network diagram; reconstructing the MBOM assembly tree, editing an MBOM tree structure initial model, establishing an MBOM tree structure release model, storing EBOM/PBOM tree structure information forming a product structure tree in a database, and performing unidirectional acyclic graph topology sorting; and then traversing all paths in the AOE network graph, calculating the sum of weights of each side in the paths to obtain a path with the maximum sum of weights, and generating a path which takes a final node asa root node and converts the AOE network graph into an MBOM multi-way tree structure for other related systems to share and call.

The invention relates to a real-time data acquisition and data processing integrated field measuring method of a rail datum network. In the known rail datum network, a method of respective indoor processing and field processing is adopted, data acquisition software is adopted in operation to collect data in the field, the data is stored into a format required by indoor calculation in real time, the data is collected and led into indoor software to be processed and calculated, and the field observed value is checked indoors, therefore, rework is easily caused. The real-time data acquisition and data processing integrated field measuring method combines indoor data acquisition with field data processing of the rail standard network, ensures that completes the two procedures at the same time in the same place and rework can be carried out on unqualified stations in time in the data acquisition process, therefore, the effectiveness and the accuracy of field data acquisition are effectively ensured, and the influence on the progress of work caused by unqualified field calculation and field rework is avoided; and the data processing algorithm is accurate and reliable, the system has the functions of gross error detection and analysis, the unqualified data is automatically removed in the processing procedure, and the accuracy and the reliability of the result can be greatly improved.

The invention provides a port mirroring method and device in stacking equipment, which are applied to an internet data center (IDC), wherein the IDC comprises at least two two-layer switchboards; the at least two two-layer switchboards form stacking equipment; two uplink ports of the stacking equipment are used as mirroring source ports; another port in addition to the mirroring source ports is used as a mirroring destination port; a spanning tree protocol is run on the two-layer switchboards in which the mirroring source ports are located for blocking one of mirroring source ports; the two-layer switchboards in which the mirroring source ports are located confirm a spanning tree state of the mirroring source port receiving a message after receiving the message through the mirroring source port; if the spanning tree state is a forwarding state, the mirroring message obtained by mirroring the message is forwarded to the mirroring destination port; and if the spanning tree state is a blocking state, the message is not mirrored. The invention can prevent the condition that the flow can not be normally forwarded due to the drift of an address resolution protocol (ARP).

The invention provides a method for ensuring safety and success of updating of line-card software in a distributed OLT system. The method includes the steps of adding an updating mirror image head portion to an updating mirror image file, verifying the content of the updating mirror image head portion and the content of an updating mirror image after the updating mirror image is well downloaded through a line card, then, conducting backup and verification on the mirror image running in the line card, and finally conducting backward read verification on the burnt mirror image on the line card. According to the method, correctness of the updating mirror image can be ensured, the problem that the updating process is finally unsuccessful due to the fact that updating is continued when the updating mirror image is downloaded and then changed due to the network transmission problem can be solved, the problem that the software system of the whole line card can not roll back after the burning motion is unsuccessful due to the problem of the mirror image can be solved, and the problem that the FLASH motion is successful while the burning of the mirror image is incorrect due to other causes can be solved.

The invention provides a software model synchronization method based on code modification. By means of the method, non-substantial modification, non-essential modification and non-correlation modification codes are filtered out from changed codes, and modification codes relevant to a software model are obtained. The software model is matched with the relevant modification codes, a corresponding relation between elements in the model and elements in the codes is built, the obtained code modification information and the corresponding relation between the elements in the model and the elements in the codes are translated into updating operation, a new model is generated, and model synchronization is achieved. The software model synchronization method can be integrated in a code version management system, automatic or semi-automatic updating of the software model can be conducted by pre-defining rules, and consistency of the software model and the codes is guaranteed.

The invention discloses a substation configuration description (SCD) calibration method based on model objectification semantics, and the method mainly comprises the following steps that (1) the detection contents of the communication part, the intelligent electronic device (IED) part and the DataTypeTemplates part of an SCD document are determined; (2) an SCD document node in the SCD document is created into an RDF Schema model, and the RDF Schema model carries the SCD document node in the SCD document; the SCD document is analyzed and controlled to judge whether grammar inspection or semantic inspection is needed; then grammar inspection and semantic inspection are respectively carried out according to an analysis, control and judgment result; and finally a grammar inspection report and a semantic inspection report are respectively obtained. The SCD calibration method based on model objectification semantics has the beneficial effects that the problem of the repeated rework caused by SCD semantic mistakes during a joint debugging process is effectively solved, the times for an equipment manufacturer to frequently lower a device are reduced, the SCD is updated on the premise of ensuring the accuracy of the SCD, so that the working efficiency is greatly improved, and the debugging cycle is shortened.

The invention discloses a distributed deployment method for a large-scale wireless sensor network testing and debugging distributed deployment method. The method is suitable for the establishment of debugging and texting network of the wireless sensor network. The method comprises the following steps: the nodes to be tested in a wireless sensor network are connected with different adapter plates according to different interface modes, the adapter plates are utilized to ensure that the sensor nodes of different kinds and different operating systems are compatible; the nodes are all connected with debugging data collecting and processing gateways through USB ports, the collecting and processing gateways are connected with a control server through an Ethernet or a wireless network; and a time synchronization scheme is adopted to constitute a distributed deployment architecture. The number of the data collecting and processing gateways can be increased to realize the large-scale network extension; and the data collecting and processing gateways are connected to a center control server in same and peer-to-peer modes on the basis of TCP/IP, the data collecting and processing gateways can avoid mutual interference, so that the reality and accuracy of debugging data can be ensured.

The invention relates to a method for realizing off-line reading files in an SAN (Storage Area Networking) shared file system. The method comprises the steps of opening a file, obtaining metadata, reading the file and ending file-reading, wherein the step of obtaining the metadata comprises a sub-step of detecting whether an original record exists, a sub-step of detecting the metadata validation, a sub-step of opening up a storage space; a sub-step of selecting and processing and a sub-step of obtaining all the metadata. In the invention, the fact that a client side also keeps a metadata backup locally is used, and the accordance and effectiveness of the metadata are guaranteed through a synchronized method, therefore, when a metadata server or an LAN (local area network) breaks down, a client server can continue to read files normally according to the local metadata backup. The method in the invention is adopted to realize the function that the client server can also continue to read SAN shared files according to the local backup metadata after the metadata server stops working.

The invention discloses a PCB (printed circuit board) packaging architecture method, which includes the steps: setting up a logic symbol in a logic symbol library, wherein the logic symbol comprises pins and mounting holes of an element and an auxiliary component thereof; setting up a traditional packaging symbol of the element, setting up an auxiliary packaging symbol according to the structural characteristics of the auxiliary component of the element, and combining the traditional packaging symbol and the auxiliary packaging symbol into integrated package or associating the traditional packaging symbol with the auxiliary packaging symbol into a combined packaging symbol; and mapping the logic symbol and the corresponding integrated package or combined package, and storing the integrated package or combined package into a PCB packaging bank for integral calling or combination calling. Using the PCB packaging architecture method can improve operating efficiency, reduce repetitive operations in PCB design and improve PCB design accuracy.

The invention discloses a decoding method for an LDPC coder. When a layered decoding algorithm is adopted and decoding of each layer is completed, except whether a calibration equation is met, whether overturn of sign bit decodes of all posteriori information (please find the formula in the specification) participating in the decoding happens is further calculated, and correctness and completeness of the termination condition of an HiTx result calculated previously are ensured. According to the decoding method for the LDPC coder, when hardware is achieved, the fault iteration termination situation can be avoided by only adding a small quantity of hardware logics so that the decoding condition of the system can be more complete and a lower bit error rate can be obtained. The decoding method for the LDPC coder can enable a fall line transitional zone of the bit error rate of the LDPC coder to be narrower and enable an error code flat layer to be lower.

The invention relates to the field of biometric identification, and provides an intelligent monitoring system based on camera monitoring. The system comprises a camera assembly, a processing module, an identification module, a storage module, a display module and a control module that can control the opening of a door, the camera assembly comprises two cameras arranged back to back and a cleaningmechanism, the two cameras are connected by a mounting piece, the cleaning mechanism comprises a cleaning chamber and a cleaning tube, a driving member is arranged in the cleaning chamber, and the driving member can drive the mounting piece to rotate; both ends of the cleaning tube pass through the a side baffle to stretch into the cleaning chamber, and an air inlet fan is arranged at the air inlet of the cleaning tube; a power supply circuit of the air inlet fan is arranged at the air outlet of the cleaning tube; the system further comprises a detection module for detecting image informationgenerated by the processing module, and outputting a starting signal to the cleaning mechanism when it is detected that the image information is a fuzzy image; and a confirmation module installed on auser terminal and capable of sending a control signal to the control module.