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308results about How to "Guaranteed success" patented technology
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Nut cap of tubular anastomat
InactiveCN101716090AImprove use reliabilityExtended service lifeMetal-working hand toolsSurgical staplesEngineering
The invention discloses a nut cap of a tubular anastomat, belonging to a medical appliance. A sinking cavity is arranged in the inner end of a cap body and is internally provided with a backstop which is a bulge extending radially from the peripheral wall of the sinking cavity or a bulge extending axially from the bottom surface of the sinking cavity. The nut cap of the tubular anastomat is difficult to fall off from the rear end of an adjusting handle of the tubular anastomat and can improve the use reliability of the tubular anastomat.
Owner:李东瑞
Information block extraction apparatus and method for Web pages
InactiveUS20050066269A1Improve performanceGuaranteed successDigital data information retrievalSemantic analysisRepeat patternSemantic information
A method and apparatus for identifying coherent areas within a Web page. First, a Web page is parsed into an HTML DOM tree and an HTML tag token stream. Next, repeated-patterns are induced from the Web page. After filtering out improper repeated-patterns and generating corresponding instances of the repeated-patterns, the repeated-patterns are mapped back to corresponding regions in the Web page. Based on the mappings, a hierarchical RST tree containing information blocks is generated. Information items within the information blocks are detected then used to generate a hierarchical structural information block tree. Information blocks from the structural information block tree are then classified into text information blocks and link information blocks. Based on the classification and block semantic similarity, the bocks are clustered then grouped into semantic information blocks. The semantic information blocks contain main text information blocks and related link blocks which, if necessary, can be labeled.
Owner:FUJITSU LTD +1
Detecting and diagnosing faults in HVAC equipment
ActiveUS20080033674A1Guaranteed successVehicle testingMechanical apparatusState variableReliability engineering
A method and system detects and diagnoses faults in heating, ventilating and air conditioning (HVAC) equipment. Internal state variables of the HVAC equipment are measured under external driving conditions. Expected internal state variables are predicted for the HVAC equipment operating under the external driving conditions using a locally weighted regression model. Features are determined of the HVAC based on differences between the measured and predicted state variables. The features are classified to determine a condition of the HVAC equipment.
Owner:MITSUBISHI ELECTRIC RES LAB INC
Medical follow-up visit system and method based on cloud computation
InactiveCN104182843ASimplify the difficulty of follow-upImproving the quality of medical follow-upResourcesMedical departmentComputer science
The invention relates to a medical follow-up visit system and method based on cloud computation. The medical follow-up visit system based on cloud computation comprises a server side, a doctor side and a patient side, wherein the server side, the doctor side and the patient side are all established on a public cloud computation platform, the server side is used for integrating pieces of follow-up visit information according to follow-up visit requirements of different medical departments and then establishing the doctor side and the patient side which correspond to the follow-up information, the doctor side is used for acquiring information of a patient serving as the follow-up visit target, being associated with the patient side corresponding to the follow-up visit target, obtaining information submitted by the patient and feeding advice of a doctor back to the patient side and is also used for checking follow-up visit information through the server side, and the patient side is used for checking the follow-up visit information through the server side and submitting patient information specifically required in the follow-up visit information to the doctor side associated with the patient side. According to the medical follow-up visit system based on cloud computation, the public cloud computation platform is utilized, online follow-up visit management can be conducted anytime and anywhere through a browser, follow-up visit difficulty is lowered, and the follow-up visit quality can be improved easily.
Owner:BEIJING SANAI BODA MEDICAL TECH
Preparation method of graphene and graphene prepared by same
The invention relates to a preparation method of graphene and graphene prepared by the method, and is characterized in that the method adopts graphite as a raw material; a graphite intercalation compound is prepared by intercalating metal between graphite layers; and then graphene is prepared by peeling the graphite intercalation compound. The graphene prepared by the method has a length and a width of 5-15000 nm, and a thickness of 0.3-15 nm. The advantages of the invention are that: the raw material source is wide; the cost is low; the preparation method is simple; the product performance is stable and controllable; and the method is suitable for industrial production.
Owner:EAST CHINA UNIV OF SCI & TECH
Optical Transceiver Integrated with Optical Time Domain Reflectometer Monitoring
ActiveUS20120243863A1Improve protectionGuaranteed successTransmission monitoringTransmission monitoring/testing/fault-measurement systemsTime-domain reflectometerTime domain
An optical transceiver having an integrated optical time domain reflectometer monitoring unit and methods for using the same are disclosed. The disclosure relates to an optical transceiver comprising an optical device comprising a wavelength division multiplexing system (WDM), a data signal driver, a data signal limiting amplifier, and an optical time domain reflectometer (OTDR) data processing module. Furthermore, the optical transceiver is particularly advantageous in an optical line terminal (OLT) and / or a passive optical network (PON). The integrated OTDR data processing module can protect the optical transceiver, ensure successful monitoring data, simplify network wiring and decrease system and network costs by decreasing the number of OTDR modules and WDM units.
Owner:SOURCE PHOTONICS
Graphene preparation method, and graphene prepared through using method
InactiveCN102815694AWide variety of sourcesLow costGrapheneNanotechnologyCvd grapheneGraphite intercalation compound
The invention relates to a graphene preparation method, and graphene prepared through using the method. The preparation method is characterized in that a metal is intercalated into layers of graphite which is a raw material to prepare a graphite intercalation compound, and the graphite intercalation compound is peeled to prepare the graphene. The length, the width and the thickness of the graphene prepared through using the method are 5-15000nm, 5-15000nm and 0.3-15nm respectively. The method has the advantages of wide raw material source, low cost, simplicity, stable controllability of the graphene performances, and suitableness for industrialized production.
Owner:EAST CHINA UNIV OF SCI & TECH
Method and device for obtaining item information using RFID tags
ActiveUS20090273451A1Avoid it happening againGuaranteed successCo-operative working arrangementsSubscribers indirect connectionIdentification deviceComputer science
Methods and devices for enabling a user to obtain item information relating to an item (10), the item having associated therewith an item identification means (12) and an RFID response means (14) arranged to provide a predetermined response on being subjected to a currently applicable trigger signal; the method comprising steps of: establishing from the item identification means (12) item identification information; using the item identification information to determine from an item information source (30) a currently applicable trigger signal for the RFID response means (14); subjecting the RFID response means (14) to the currently applicable trigger signal; receiving a predetermined response from the RFID response means (14); and using the predetermined response to obtain item information from the item information source (30); wherein the RFID response means (14) is arranged to generate a new currently applicable trigger signal and a new predetermined response associated therewith following subjecting of the RFID response means (14) to the currently applicable trigger signal.
Owner:BRITISH TELECOMM PLC
Evolved Packet System and Method for Processing Emergency Call Attachment Thereof
InactiveUS20120231760A1Guaranteed successEmergency connection handlingAssess restrictionMobility managementMobile communication network
The disclosure discloses an evolved packet system and a method for processing an emergency call attachment thereof, wherein the method comprises: a NodeB selects one PLMN from those Public Land Mobile-communication Networks (PLMN) supporting emergency calls according to an emergency call request message received from a UE which is in a restricted state; the NodeB sends information of the selected PLMN to the UE through a Radio Resource Control (RRC) connection establishment message; and the UE uses the information to establish attachment with the selected PLMN. In the disclosure, it can be ensured that the PLMN to which the User Equipment (UE) selects to attach supports an emergency call, and it can be ensured that Kasmes generated by the UE and the Mobility Management Entity (MME) are consistent during the Authentication and Key Agreement (AKA) flow, so that the success of the emergency call can be guaranteed.
Owner:ZTE CORP
Method and interface board of retaining neighbourhood
ActiveCN101094186AIncrease flexibilityGuaranteed routing convergence speedData switching networksNeighbor relationComputer science
The method comprises: setting up the neighbor relation keeping messages in the distribution device and its neighbor devices; generating the neighbor relation keeping message in the interface in the distribution device; when the sending cycle of each pre-determined message comes, said neighbor relation keeping messages are sent to the said neighbor devices; said neighbor devices decide if said neighbor relation keeping messages are received in the keep-alive interval; if yes, then keeping the neighbor relation with the distribution device; otherwise, cutting off the neighbor relation with the distribution device.
Owner:NEW H3C TECH CO LTD
Method and device for improving quality of crawler proxy and computer readable storage medium
ActiveCN110147271AEfficient managementImprove acquisition efficiencyProgram initiation/switchingResource allocationEffective managementDistributed computing
The invention discloses a method and device for improving the quality of a crawler proxy and a computer readable storage medium. The method for improving the quality of the crawler proxy comprises: setting different priorities for a plurality of proxy pools; and calling the proxy pool based on the proxy pool priority and the utilization rate of the proxy pool priority. The proxy pools are reasonably graded, the proxies are classified and put into the proxy pools according to the high-quality degree, aproxy pool switching is carried out according to the proxy utilization rate of the proxy pools, effective management of the network proxies is achieved, the utilization rate of the high-quality proxies is increased to the maximum, and the network resource obtaining efficiency of the crawler program is improved; the available state of the agent is detected, the success of the request is ensured, unavailable agents are excluded, the occupation of network resources is reduced to a certain extent, and the damage of the network request to the target server is reduced.
Owner:重庆八戒传媒有限公司
Optical transceiver integrated with optical time domain reflectometer monitoring
ActiveUS8942556B2Successful monitoring of dataAvoid problemsTransmission monitoringTransmission monitoring/testing/fault-measurement systemsTime domainTransceiver
An optical transceiver having an integrated optical time domain reflectometer monitoring unit and methods for using the same are disclosed. The disclosure relates to an optical transceiver comprising an optical device comprising a wavelength division multiplexing system (WDM), a data signal driver, a data signal limiting amplifier, and an optical time domain reflectometer (OTDR) data processing module. Furthermore, the optical transceiver is particularly advantageous in an optical line terminal (OLT) and / or a passive optical network (PON). The integrated OTDR data processing module can protect the optical transceiver, ensure successful monitoring data, simplify network wiring and decrease system and network costs by decreasing the number of OTDR modules and WDM units.
Owner:SOURCE PHOTONICS
Whole-process leakage-plugging and well-cementing design method for high-temperature and high-pressure ultra-deep well
ActiveCN106437609AGuaranteed successReduce risk of leakageDesign optimisation/simulationSealing/packingWell cementingCement slurry
The invention discloses a whole-process leakage-plugging and well-cementing design method for a high-temperature and high-pressure ultra-deep well. The whole-process leakage-plugging and well-cementing design method sequentially comprises the following steps: A, pigging, calculating the annular total circulating pressure loss during pigging circulation, and using the annular total circulating pressure loss as stratum pressure bearing capacity; B, according to the stratum pressure bearing capacity, calculating the running speed of a casing pipe or a tail pipe, and then running a casing pipe string or a tail pipe string; C, according to the stratum pressure bearing capacity, calculating the drilling fluid circulating displacement after running the casing pipe or the tail pipe, and then circulating a drilling fluid; D, calculating the flow-plugging critical displacement during cement-injecting operation; E, calculating the safe critical displacement during the cement-injecting operation; F, according to the flow-plugging critical displacement and the safe critical displacement during the cement-injecting operation, determining the actual operation displacement, performing the flow-plugging and cement-injecting operations, and sequentially injecting a spacer fluid, a cement slurry and a slurry replacing fluid. By the whole-process leakage-plugging and well-cementing design method, guidance can be provided for plugging and well cementation of deep and ultra-deep wells so as to ensure that the ultra-deep well cementing operation is successful and improve the well-cementing quality.
Owner:SOUTHWEST PETROLEUM UNIV
Car brake friction lining and preparation method thereof
ActiveCN102758870AImprove friction performanceStable recovery performanceOther chemical processesFriction liningFiberMixed materials
The invention discloses a car brake friction lining and a preparation method thereof. The car brake friction lining comprises the following raw materials in percentage by weight: 10-20% of binder, 20-40% reinforced fiber, 10-20% friction increasing agent, 10-20% lubricant and 20-40% filler. The preparation method comprises the steps of: 1) mixing the raw materials, placing the mixture in a high-speed material mixer and evenly stirring; 2) placing the evenly mixed materials into a die for heating and moulding; 3) conducting heat preservation on moulded friction lining for 16-20 hours at 140-180 DEG C; and 4) conducting milling and drilling machining on the outer cambered surface, the inner cambered surface and the end surfaces of the heat-preserved moulded friction lining into a finished product. The raw material formula of the friction lining can ensure the stable friction property and reset property of the friction lining, the production process is simple, and the operation is convenient. Furthermore, through multiple tests, the mould pressing temperature and mould pressing pressure in optimal range can be obtained, thus ensuring the success rate of a mould pressing forming process.
Owner:湖北九霄汽车零部件股份有限公司
Casing horizontal well multi-segment refracturing method
ActiveCN106351634ASolve many problems such as easy failureGuaranteed successFluid removalSealing/packingMulti segmentMaterial Perforation
A multi-stage refracturing method for casing horizontal wells is proposed. This method is used for refracturing horizontal wells containing multiple stages. The method includes: according to the gel breaking requirements of each stage, determine the corresponding Temporary plugging; the plugging string can be dragged down the horizontal well; the temporary plugging corresponding to each section is used to seal the old perforation holes left after the previous fracturing operation in each section in sequence Re-orientate perforation on the first section of the horizontal well after plugging, and implement refracturing construction; perform the following operations on each section from the second section to the M section of the horizontal well in turn: lower the perforation bridge plug joint Manipulating strings, setting bridge plugs, reorienting perforating strings, and implementing repeated fracturing operations, wherein the first section is the section farthest from the wellhead, and the Mth section is the closest to the wellhead One section; and after the pressure is applied, all the bridge plugs are drilled and removed, and after all the bridge plugs are drilled and removed, the temporarily blocked rubber plug is broken and hydrated and then discharged.
Owner:CHINA PETROLEUM & CHEM CORP +1
Comprehensive inspecting and testing method for high voltage power transformer and distribution substation
ActiveCN104198832AShorten the construction periodImprove efficiencyElectrical testingTransformerElectrical current
Owner:CHINA METALLURGICAL CONSTR ENG GRP
Auto-feeder of integrated matching electrical testing machine equipment
ActiveCN104709711AGuaranteed successAvoid damageControl devices for conveyorsElectrical testingVisual system
The invention discloses an auto-feeder of integrated matching electrical testing machine equipment. The auto-feeder comprises a stand, a feeding mechanical arm, a discharging mechanical arm, a locating mechanism component, a discharging movable mechanism and a CCD detecting mechanism used for detecting products. The feeding mechanical arm, the discharging mechanical arm, the locating mechanism component, the discharging movable mechanism and the CCD detecting mechanism are all installed on a workbench of the stand. According to the auto-feeder, fast alignment, placement and detection of the products are achieved by the adoption of the feeding mechanical arm, the CCD detecting mechanism detects whether the products are aligned, unqualified products are subjected to automatic ink jet marking through the discharging movable mechanism, and a visual system examines and identifies the mark symbols automatically; the placing positions are accurate and reliable, it is guaranteed that 100% unqualified products are marked successfully through a fool-proof function, two groups of left-right movable mechanism are adopted, the synchronous working of the feeding mechanical arm and the discharging mechanical arm is achieved, the production efficiency is greatly improved, the labor cost is saved, and the product quality is guaranteed.
Owner:XIAMEN HONGXIN ELECTRON TECH +1
Guide wire/catheter delivery device for vascular interventional operation
A guide wire / catheter delivery device for vascular interventional operation comprises a clamping mechanism, a propelling assembly and a guiding mechanism, wherein the propelling assembly is used for driving the clamping mechanism to move; and the guiding mechanism is used for guiding a guide wire or catheter movement path. When a sliding clamp of the clamping mechanism is close to a fixed slidingtrack type clamp, a first anti-sliding elastic block and a second anti-sliding elastic block tightly presses a guide wire or a catheter so as to clamp the guide wire or the catheter; the propelling assembly comprises a boss synchronous belt, a synchronous belt pulley moving mechanism and a synchronous belt pulley tensioning mechanism; the boss synchronous belt and the synchronous belt pulley moving mechanism drive the clamping mechanism to move; and the synchronous belt pulley tensioning mechanism is used for tensioning a synchronous belt pulley so as to adjust the tightness of the boss synchronous belt. The guide wire / catheter delivery device for vascular interventional operation is small in size and high in delivery precision.
Owner:SHENZHEN INST OF ADVANCED TECH
Sampling device of deep-space asteroid sample collection detector
The invention discloses a sampling device of a deep-space asteroid sample collection detector; the structure is characterized in that the device comprises an ejection port, a housing, an ejection ball storage tube, a driving motor, an air valve housing, a piston, a cam, a trigger, a trigger return spring, a pedestal extension bar, a pedestal piston connector, a pedestal, a valve body, a valve core control spring, a valve core, a stopping block, ejection balls, an arch bar, a piston O-shaped sealing ring, and the like. The invention is characterized in that: the driving part controls the starting of the piston; the piston controls the on and off of compressed air by pushing the valve core of the air valve; the ejection balls are ejected out of the pipeline orifice with certain kinetic energy by pushing of the high-pressure air; and the sampling purpose is reached by soil sputtering caused by bumping with the asteroid surface. The invention is a surface trace sample collection device which is small in mass, simple and reliable in structure, and convenient for automatic operation, and overcomes the influence of 'zero-gravity' environment by a diffusion principle.
Owner:ZHEJIANG UNIV
Laser-assisted drilling method and device
InactiveCN103753223AImprove machinabilityReduce wearOther manufacturing equipments/toolsMetal working apparatusLaser assistedHigh energy laser beam
The invention provides a laser-assisted drilling method and a laser-assisted drilling device. The laser-assisted drilling device comprises a workbench, a fixture mounted on the workbench, a drill bit and a laser device, wherein the drill bit and the laser device are respectively arranged on the workbench through a movable device and arranged above the fixture, and the laser device and the drill bit are arranged to be provided with an included angle therebetween. According to the laser-assisted drilling method, the to-be-drilled area of a workpiece is preheated by a high-energy laser beam, so that, in a very short time, part of the to-be-drilled area is heated to have a very high temperature, meanwhile, the physical performance of the material is changed under the high temperature, and the to-be-drilled area of the workpiece material is softened. Once the laser heating is completed, drilling starts rapidly. Thus the drilling resistance can be reduced, the machinability of the material can be improved, the tool wear can be reduced, the success of drilling can be ensured, and the machining precision and the machining efficiency can be improved.
Owner:GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
Method for performing pronunciation error detecting based on holding vector machine
InactiveCN101231848AImprove performanceGood error detectionSpeech recognitionSupport vector machineAlgorithm
The invention relates to a method for detecting mispronunciation based on a support vector machine, which comprises a typical error support vector machine detection method, an abnormal error threshold detection method and an abnormal confusion error support vector machine detection method. The method provided by the invention comprises the following steps: a voice recognition system is established; mispronunciation detection features are extracted; the training objective data of a mispronunciation detection model is acquired; a mispronunciation support vector machine detection model is trained; and mispronunciation is detected; an abnormal mispronunciation detector is trained; a mispronunciation detection threshold is set; wrong pairs of each phoneme which are confused easily are defined; training featured files and target data are generated; a support vector machine model is trained; the mispronunciation detection threshold is set; abnormal confusion errors are determined. The invention can solve the problem of sparse manual marks and ensure that the error detecting model got by means of training can detect errors of different enunciators and different pronunciation styles.
Owner:IFLYTEK CO LTD
Medical ligation injection therapeutic instrument
The invention provides a medical ligation injection therapeutic instrument. The instrument comprises a shell, an adsorption part, a ring push part and a drive mechanism, wherein the adsorption part comprises a sucker, a cylinder, a piston and an air suction pipe; the ring push part comprises a push sleeve and a push pipe; the drive mechanism comprises a trigger and a composite gear which is matched with the trigger and drives the piston and the push pipe to move; and a piston cavity is arranged inside the cylinder. The instrument is characterized in that: the area of the round cross section of the piston cavity is gradually reduced from one end connected with the air suction pipe to the other end; and suspension ribs are arranged on the outer surface of the sucker. While the sealing performance between the piston and the inner wall of the cylinder is ensured, the friction force between a seal ring and the inner wall of the cylinder is reduced, so that the instrument is lighter and more convenient to use; and the position on the piston matched with the seal ring is set to be of a conical shape, thus, while the sealing performance and the reduction of the friction force are further ensured, the requirement on the size of the seal ring is reduced, so that most seal rings in a batch are in accordance with the use requirement.
Owner:济南戎翔医疗科技开发有限公司
Mobile communication terminal with intercom module and communication processing method thereof
InactiveCN101453798AReduce communication costsReduce complexitySubstation equipmentWireless communicationIntercomDatabase
The invention discloses a mobile communication terminal with an intercom module, and a communication processing method thereof, wherein the method comprises the following: step A, a list of on-line friends within a communication range of the intercom module is created and updated; and step B, users in the list of the on-line friends are called, or the intercom module is started and utilized for communication processing in a call process. The invention has the advantages of reducing the communication cost of users, reducing operation complexity and guaranteeing successful communication by use of the intercom module after switching.
Owner:ZTE CORP
Hydrate mining well mechanical screen pipe erosion evaluation simulation system and simulation testing method thereof
PendingCN107843513AGuaranteed successStrong referenceInvestigating abrasion/wear resistanceMining engineeringData acquisition
The invention discloses a hydrate mining well mechanical screen pipe erosion evaluation simulation system and a simulation testing method thereof. The simulation system comprises an underground subsystem, a ground subsystem and a data collection analysis subsystem, and can meet the requirement on full-scale simulation of an actual natural gas hydrate mining well screen pipe working condition; a simulation result can be directly used for evaluating a marine natural gas hydrate mining well screen pipe erosion attack condition; screen pipe erosion and actual hydrate production well working conditions are initiatively combined, and a pressure sensor, a pressure difference sensor, an online laser particle analyzer and a well mouth sand discharge concentration measurer are combined, so that a screen pipe erosion condition is monitored in real time; through a simulation experiment, an erosion attack rule of a screen pipe under a hydrate production condition can be obtained, the erosion resistance adaptability of the screen pipe during a hydrate mining process is evaluated, and a data support is further provided for designing a diversion trench of a protection cover outside the natural gashydrate mining well screen pipe, optimizing a screen pipe type, warning risks for a depressurization sand control scheme, and selecting a stored transformed section.
Owner:QINGDAO INST OF MARINE GEOLOGY
Additive manufacturing method for parts with thin wall structure based on SLM process
ActiveCN107876770AReduce manufacturing costGuaranteed successAdditive manufacturing apparatusIncreasing energy efficiencyProcess supportTitanium alloy
The invention relates to an additive manufacturing method for parts with a thin wall structure based on an SLM process, and belongs to the technical field of laser advanced additive manufacturing. According to the additive manufacturing method, the problem that aluminum alloy or titanium alloy thin wall structural components printed by an existing additive manufacturing method are difficult to form, prone to deforming and prone to breaking due to large stress can be solved; the cost of additive manufacturing can be reduced, the success of additive manufacturing of the aluminum alloy thin wallstructural components is ensured, and a practical and reliable process support design method for the additive manufacturing of the aluminum alloy or titanium alloy thin wall structural components is provided.
Owner:BEIJING SATELLITE MFG FACTORY
External fixing device of pelvis at lateral position in artificial hip-joint replacement and working method thereof
InactiveCN102309392AAccurate implantation angleAccurate locationDiagnosticsOperating tablesHuman bodyArtificial hip joints
The invention relates to an external fixing device of the pelvis at the lateral position in artificial hip-joint replacement, comprising a flat plate, a sliding plate, an operating arm, a sacrum fixing plate, an operating bed connecting and fixing piece, an anterior superior iliac spine fixing piece, a guide needle, a universal rotating shaft, a universal shaft seat and a fixed piece. A working method of the external fixing device of the pelvis at the lateral position in the artificial hip-joint replacement comprises the following detailed steps: (1) the device is fixed with the operating bed to lead a human body to be in the lateral position; (2) the sliding plate is adjusted to drive the anterior superior iliac spine fixing piece; (3) the anterior superior iliac spine fixing piece is adjusted; (4) a vertical needle body is parallel to the connecting line of the anterior superior iliac spines at the two sides, an inclined needle body expands outwards by 45 degrees, and inclines forwards by 15-20 degrees; and (5) an acetabulum placer is parallel to the inclined needle body. The external fixing device has the advantages that (1) the angle design of the inclined needle body in the two-in-one guide needle ensures the accuracy of the operation; (2) the accuracy, the firmness and the reliability of the pelvis fixing are ensured; (3) the operation is convenient; and (4) the wound is avoided.
Owner:朴哲 +1
Remote firmware upgrading method and system for intelligent Internet of Things metering instrument
InactiveCN109976784AReduce transmissionExtended service lifeData switching networksSoftware deploymentServer-sideUpgrade
The invention relates to the technical field of communication, and especially relates to a remote firmware upgrading method and system for an intelligent Internet of Things metering instrument. The method comprises the following steps of: S1, uploading a latest firmware upgrade package to a server, the server compares the latest firmware upgrade package with the last firmware upgrade package in the metering instrument; if the difference point is smaller than the set threshold value, the information of the difference point is packaged into a firmware upgrade package to be upgraded, and if the difference point is larger than or equal to the set threshold value, the latest firmware upgrade package is used as the firmware upgrade package to be upgraded, and an upgrade instruction is issued atthe server side; S2, receiving an upgrading instruction by the metering instrument, connecting a server according to the upgrading instruction, and downloading a corresponding firmware upgrading package to be upgraded; and S3, the metering instrument completes firmware upgrading according to the to-be-upgraded firmware upgrading package. The method has two modes of whole package upgrading and difference point upgrading, and can effectively cope with various upgrading conditions.
Owner:GOLDCARD HIGH TECH
Internet key management protocol re-negotiation authentication method and device
ActiveCN106169952AGuaranteed successEnsure safetyKey distribution for secure communicationThe InternetProtocol for Carrying Authentication for Network Access
The present invention provides an internet key management protocol (IKE) re-negotiation authentication method and device. The method comprises: in the first negotiation stage of the IKE renegotiation, a device at one end performs encryption of the ID of a local device through the SA obtained by IKE renegotiation between the device at one end and the device at an opposite end at the last time; the encrypted ID is sent to the device at the opposite end; after the ID sent by the device at the opposite end is received, the decryption is performed through the SA obtained by the IKE renegotiation between the device at one end and the device at an opposite end at the last time; it is determined whether the decrypted ID is consistent to the obtained ID at the negotiation at the last time or not; and the authentication passes in the condition that the decrypted ID is consistent to the obtained ID at the negotiation at the last time. According to the embodiment of the invention, the safety can be ensured in the re-negotiation process of the internet key management protocol with no need for performing the EAP authentication.
Owner:HANGZHOU DPTECH TECH
Grid-connection and off-grid double-mode ship solar power generating system
ActiveCN103929115AGuaranteed service lifeEmission reductionBatteries circuit arrangementsPV power plantsGrid connectionSolar power
The invention relates to a grid-connection and off-grid double-mode ship solar power generating system which comprises a solar cell panel, a battery charger, a solar electric management device, an alternating current distribution cabinet, a countercurrent preventing device, a photovoltaic controller, a photovoltaic inverter and a storage battery, wherein the a photovoltaic controller, the photovoltaic inverter and the storage battery are respectively in communication connection with the solar electric management device through RS485. The solar cell panel is electrically connected to the storage battery and the photovoltaic inverter through the photovoltaic controller. In the photovoltaic inverter, an off-grid mode end of the photovoltaic inverter is connected with a ship secondary load through the alternating current distribution cabinet to form an off-grid loop, and the grid-connection mode output end of the photovoltaic converter is electrically connected to a node between a main ship bus bar and a main transformer to form a grid-connection loop. The battery charger is respectively and electrically connected with a ship main distribution board and the storage battery. The countercurrent preventing device is electrically connected with nodes from the main ship bus bar to the main transformer, and is connected with the photovoltaic inverter through an RS485 communication line. The grid-connection and off-grid double-mode ship solar power generating system can ensure the stable operation of a ship power system, and can utilize solar energy to generate power and reduce fuel consumption and exhaust emission to the maximum extent.
Owner:湖南湘船重工股份有限公司
Requirement information processing method for system
InactiveCN101452550AImprove adaptabilityDecomposing complexityResourcesInformation processingInformation analysis
The invention discloses a demand information processing method for a system. The method analyzes service demand according to demand characteristic parameter information of the system, decomposes service demand information into different types, and carries out targeted processing on the demand information of each type to acquire demand information of the system for guiding development and construction of the system. Through analyzing demand characteristics of the system and classifying and decomposing service demand according to demand characteristic parameters of the system, the method elaborates the types of the service demand, has stronger direction according to demand analysis of the system, acquires accurate and reliable system demand, and ensures success of the development and the construction of the system; and at the same time, the method uses various information objects referred in the analysis processing procedure of the demand information as specific concept entities for uniform description, improves understanding degree of each member to service and the system during the construction of the system, and is convenient for the members to communicate.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD +1
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