1786results about How to "Address reliability" patented technology

The invention relates to a network-based PB level cloud storage system and a processing method thereof. The network-based PB level cloud storage system comprises a main control server, a storage server cluster and a client side which are operated through an internal exchange, wherein the main control server is used for providing the directory information and the meta data information for a cloud storage client side and monitoring the storage server cluster; the storage server cluster comprises a plurality of storage servers used for data storage; the client side is used for providing the virtual disc service for a cloud storage client machine, submitting an operation request of the cloud storage client machine to a virtual disc to the main control server and reading / writing the file data from the storage server, and a client-side module is arranged on the cloud storage client machine. The invention is easy to expanded and is convenient to manage, solves the problem of storage island, can construct a cloud storage file system provided with the dynamic load balancing capability and the online backup and automatic recovery functions and capable of being expanded on demand on a general-purpose low-performance PC (personal computer) cluster.

A signal bearing medium tangibly embodies a program of machine-readable instructions executable by a digital processing apparatus to perform operations comprising receiving an email message having an extended email address encoded virtual address, resolving said address to an actual email address, replacing the virtual address with the actual email address, and transmitting said email message.

The invention discloses an event authentication method and device. The method includes: collecting the related information of a to-be-authenticated event; generating an authentication request for performing authentication on the to-be-authenticated event when the related information meets the triggering conditions of the to-be-authenticated event; responding to the generated request to retrieve historical records associated with the requested to-be-authenticated event from a block chain; authenticating the to-be-authenticated event according to the historical records. The method has the advantages that the collected event information is compared with preset event information to trigger the event authentication flow, and the problems that an existing authentication program is complex, long in authentication time, non-objective in authentication, and the like are solved; the authentication is performed on the basis of the historical records, which cannot be tampered and are high in reliability, in the block chain, and high authentication result reliability and high safety node are achieved.

The invention relates to an integrated IBE data encryption system. The system comprises an IBE key server, a certification authority (CA) system, an identification authority system, an IBE service publication system, an IBE encryption application program, an IBE encryption application program interface (API), an IBE crypto module and an IBE key management client. The IBE service publication system publishes related service system information on line, and the encryption application program calls the IBE crypto module through the IBE encryption API to complete IBE data encryption and decryption functions; the IBE crypto module is connected with the IBE key server through the IBE key management client to obtain IBE public parameters and IBE private keys needed for the encryption and decryption; when the private keys are obtained, the IBE key management client obtains identification certifications from the CA system; and in an online interaction process, the key management client proves identities of users by using the identification certifications signed by the CA system. The system solves the key problems of identification safety, identification attribution confirmation, obtaining convenience of the public parameters and the like in IBE encryption.

The combined grouting construction process of reinforcing foundation includes the following steps: drilling grouting hole; establishing hole top grouting apparatus; high pressure rotary spraying clear water to expand hole; high pressure rotary spraying mortar and static pressure grouting. The present invention combines static pressure grouting technology and high pressure rotary spraying grouting technology with different advantages, so as to reach maximum application range, optimized reinforcing effect, and successive and safe reinforcement.

The invention relates to an intelligent carrier for a mechanical parking system, comprising two vehicle bodies connected through a set of connecting rods, wherein, at least one vehicle body is provided with a traveling mechanism and a positioning device; the two vehicle bodies respectively comprise two rushing board mechanisms; each rushing board mechanism comprises a rushing board body, clamping bars on two ends of the rushing board body, a combined guide rail which is arranged on the two ends of the rushing board body and fixed on the vehicle body, and a power unit which controls the movement of the rushing board body; the combined guide rail comprises a first guide unit and a second guide unit; the rushing board body is moved under the action of the power unit and further drives the clamping bars to make linear motion along the first guide unit or rotary motion along the second guide unit. All motions are completed through the driving of a motor, which solves the problem of structural reliability of the prior carrier; the rushing board mechanisms for clamping tyres are driven by the motor, adopt a leadscrew-nut transmission mechanism, a synchronous belt driving mechanism, a chain transmission mechanism or a wire cable transmission mechanism for transmission, and are guided by the guide rail, thereby having high reliability.

The invention discloses an authentication method and a system. The method comprises the following steps: acquiring user identity information after receiving a user authentication request, wherein the user identity information comprises user identification and at least two biological characteristics; fusing and matching the biological characteristics with each corresponding characteristic model in a pre-registered identity information base, thereby acquiring multiple candidate fusing scores, wherein each registered user identity in the identity information base is corresponding to a set of characteristic model; judging if the registered user identity corresponding to the characteristic model with the highest fusing score is identical to the acquired user identity; if yes, confirming the success of the user authentication; if not, confirming the failure of the user authentication. The authentication method can be utilized to increase the safety of the authentication.

The application provides an application server selecting method and a network connection method. The methods include that a client simultaneously sends a DNS (Domain Name System) query request which comprises a domain name to a plurality of DNS servers; When a DNS server send an IP (Internet Protocol) address corresponding to the domain name back to the client according to the DNS query request, the client generates a candidate list of IP addresses in accordance with the IP address; the client simultaneously sends a connection request to an application server corresponding to every IP address in accordance with the candidate list of IP addresses; an optimal application server is determined according to state information of response to the connection request of every application server. The application server selecting method and the network connection method can ensure the reliability of DNS resolution service and shorten time consumption as well as can meet the specific needs of network applications and improve the safety.

The invention provides a method for reducing time limit combination step progression of distribution network relaying protection, comprising the following steps: 1, realizing differential protection (DP) between all incoming switches and all outgoing switches in a distribution switching station or a distribution firewall; and 2.1,, if the DP meets action conditions, tripping off all the incoming switches without time delay; 2.2, if the DP does not meet the action conditions, executing overcurrent criterion on all the outgoing switches: judging whether the overcurrent I is more than set current Iset, namely I is more than Iset; and if the outgoing switches meet the overcurrent criterion at some time, tripping off the outgoing switches. The method is utilized to realize selective actions without time delay for the relaying protection between two-stage panel switches in the distribution switching station (or a distribution firewall), thus reducing the time limit combination step progression of the distribution network relaying protection, and greatly decreasing maintenance workload of relaying protection personnel. The invention also discloses a device for reducing time limit combination step progression of distribution network relaying protection.

The invention relates to a method for modeling and evaluating reliability of three types of functional components of a numerical control machine tool. The method comprises the following steps: drawing a WPP (Wax Polypropylene) diagram of the fault interval time according to the reliability on-site test data of the numerical control machine tool; if the WPP diagram trends to one straight line, carrying out two-parameter Weibull distribution modeling on the service lives of the functional components and evaluating the reliability of the functional components; if the WPP diagram has an obvious inflection point, adopting the double Weibull mixing distribution modeling and estimating the parameters of the WPP diagram; and carrying out the reliability evaluation on the double Weibull mixing distribution model. By utilizing the method, the reliability modeling and evaluation on the functional component is carried out based on the reliability data on-site test data of the three types functional components of the numerical control machine tool in operation state, the fault distribution regulation in the service life period process of the functional component products is revealed by adopting multiple Weibull distribution models, and furthermore the comprehensive parameter estimation is carried out, so that the reliability modeling and evaluation problem of complex systems such as the functional components is better solved.

The invention belongs to InforGuard web page tamper-proof system middleware field, particularly is a file protection technology based on Window system file filter drive, which is realized by the following steps: A: loading drive, by calling Service provided by Window system to manage API in order to load a drive file; B: building up and maintaining a protected file assembling to obtain protected file assembling information after loading drive; C: building up and maintaining a privilege progress list to obtain privilege progress information which can visit the protected file after loading the drive; D: processing a file visit request to realize file protection according to claim. The scheme changes previous process ideas of file protection technology, and replaces passive prosthesis with active interception so that invalid act of amending is directly forbidden.

The invention provides an identification method for turnout faults. The method comprises steps as follows: a curve of each action of a turnout is collected; the obtained turnout action curves are divided into normal curves and fault curves; for the normal curves and the fault curves, one normal curve and one fault curve with the most representative characteristics are selected as representative curves of the normal curves and the fault curves respectively; similarity 1 of a to-be-identified curve and the representative normal curve and similarity 2 of the to-be-identified curve with the fault representative curve are calculated with a similarity algorithm; the similarity 1 and the similarity 2 obtained through calculation are compared, if the similarity 1 is larger than the similarity 2, the curve is a normal curve, and if the similarity 1 is smaller than the similarity 2, the curve is a fault curve. According to the identification method for the turnout faults, the problems of missing report and mistaken report caused by the fact that the turnout fault type is judged through artificial experience in the prior art are solved, so that the turnout fault category is automatically identified, repair efficiency and system reliability are improved, and traffic safety is guaranteed.

The invention discloses a catering and amusement management system and a special electronic menu and a self-help ordering method thereof. The internet-based catering and amusement management system comprises a remote data service unit, a remote application service unit, at least one catering and amusement shop operating unit and an access terminal unit, wherein the remote data service unit is used for the collective and concentrated storage of data from the units in the system; the remote application service unit is used for acquiring the data from the units, analyzing and processing the data collectively, distributing the data to the units and providing an internet-based catering management application service module; the at least one catering and amusement shop operating unit is used for the daily operation of a catering and amusement shop and the data interaction with the remote data service unit; and the access terminal unit is used for accessing the corresponding catering management application service module according to the right distributed by the remote application service unit. The system has high data safety, remote management, convenient and quick maintenance, low system maintenance cost and good augmentability, and can be simultaneously applied to the management of a plurality of catering and amusement shops with different brands.

The invention provides an all-solid-state planar array three-dimensional imaging laser radar system, which comprises a detection target, a laser planar array data acquisition and point cloud generating module, and a data processing system, wherein the detection target is installed on a butting surface of a all-solid-state planar array three-dimensional imaging laser radar, so that a pulse laser signal transmitted by means of the laser radar for tracking the detection target returns in the original path, a reception and detection system of the laser radar completes the searching and capture ofthe detection target, acquires relative distance and position measurement parameters of the detection target in real time and acquires a plurality of feature points of the detection target in a laserirradiation range of the detection target and the laser radar, and the feature points are set in an optical field of view region with a fixed divergence angle; the laser planar array data acquisitionand point cloud generating module completes the measurement of the detection target and the depth data generation of the feature points, and transmits the depth data to the data processing system; andthe data processing system calculates azimuth information according to the depth data of each feature point and pixel positions in the field of view region, calculates angle and distance data and calculates attitude data of the detection target.

The invention discloses an intelligent illumination system based on a power line carrier communication technology. The system is characterized by comprising a master controller, a plurality of slave controllers and a plurality of LED (light emitting diode) lamp groups, wherein the master controller and the plurality of slave controllers perform data communication through power lines, and each slave controller controls one LED lamp group. The intelligent illumination system performs intelligent management to the LED lamp groups, reasonably sets opening, closing and brightness of the lamps in the area according to intensity of illumination of natural light and people walking conditions in each area, and can control opening, closing and brightness of the lamps in each area by virtue of a control command which is manually input on a touch screen, so that the LED lamp group has a remarkable energy-saving effect on the premise of guaranteeing the illumination quality; and by adopting the power line carrier communication technology and utilizing the existing illumination circuit, cabling is not required, and communication is reliable, so that the cabling cost is saved, and the problems of communication quality and safety are solved.

The invention discloses a safe access method based on a dynamic host configuration protocol (DHCP) SNOOPING. The method is characterized by: adding a definition or default-arranged OPTION 82 to a user DHCP request message received by a switchboard; configuring a binding quantity on a port; issuing binding information (IP, MAC, VLAN, PORT) of the user to hardware by using the switchboard; uploading the binding information which is encrypted to a background server. Once the switchboard restarts, the binding information is acquired from the background server and the downloaded binding information needs to send an ARP request so as to confirm the binding. And the binding information can be determined whether to be effective or not. By using a technical scheme of the invention, safety and reliability brought by distributing addresses through the DHCP can be guaranteed; a security problem of accessing network through the DHCP mode can be effectively controlled and managed.

The invention relates to a cloud computing network architecture and a method for enhancing the reliability of the cloud network architecture. The cloud computing network architecture comprises an infrastructure layer, a fog computing layer and a cloud service layer. The method for enhancing the reliability of the cloud network architecture comprises the following steps: (1) constructing a weighted undirected graph of the cloud network architecture; (2) constructing a time delay optimization model of business processing in the cloud network architecture when the fog computing layer is not broken down; (3) constructing an average time delay optimization model of business processing in the cloud network architecture when the fog computing layer is broken down; and (4) constructing the time delay optimization strategy under the condition that the fog network is not broken down and constructing the average time delay optimization strategy under the condition that the fog network is broken down.

The invention discloses transmitter and receiver of communication system and synchronization method thereof. The invention aims at the characteristics of periodically changed strong noise, high attenuation, signal distortion and the like of low-voltage network channels, the transmitter transmits modulated data in time in noncontiguous manner to avoid periodically worsened time zones of the channels; a single capture and verify strategy adopted by the receiver detects and identifies effective data intervals to establish accurate synchronous capture. The harmful effects onto communication caused by the severe environment of the channels can be overcome when the invention is adopted in low-voltage power line carrier communication systems, thereby enabling the reliability of the communicationsystems to be improved.

The invention discloses a space positioning platform which comprises an X-direction guide rail, a Y-direction guide rail driven by an X-direction driving mechanism to be in linear reciprocating motion along the X-direction guide rail, a Z-direction guide rail driven by a Y-direction driving mechanism to be in linear reciprocating motion along the Y-direction guide rail, and a carrying platform driven by a Z-direction driving mechanism to be in up-down reciprocating motion along the Z-direction guide rail. The Y-direction guide rail is mounted on the X-direction guide rail , the Z-direction guide rail is mounted on the Y-direction guide rail, the carrying platform is mounted on the Z-direction guide rail, and the X-direction driving mechanism, the Y-direction driving mechanism and the Z-direction driving mechanism form a servo driving system for adjusting position of the carrying platform in directions X-axis, Y-axis and Z-axis of a space rectangular coordinate system. The space positioning platform is simple in structure, reasonable in design, simple and convenient to use and operate, good in using effect and high in positioning efficiency, and the problem that an existing lifting device is single in moving direction, inaccurate in positioning, poor in reliability and the like can be effectively solved.

The invention discloses a frequency control method, a frequency control device, a multi-split air conditioner and a storage medium. The frequency control method comprises the following steps that whenthe multi-split air conditioner is in the heating operation, a capability requirement identification value corresponding to each indoor unit in all indoor units in the running state, set temperatureand indoor environment temperature are acquired at interval preset time so as to determine the initial operating frequency of a compressor in each preset time; in each preset time, outdoor environmenttemperature is acquired; a target frequency correction coefficient within each preset time is determined according to the outdoor environment temperature; and the initial operation frequency within each preset time is corrected according to the target frequency correction coefficient so as to determine the target operating frequency of the compressor. According to the frequency control method, the frequency control device, the multi-split air conditioner and the storage medium, the problems that the accuracy of the tube temperature correction frequency of the middle of the indoor unit is lowand the needed time is too long are solved, and the effect of improving the heating capacity of the multi-split air conditioner is achieved.

The invention discloses a structural reliability analysis method based on an agent model under the condition of hybrid uncertainty. The structural reliability analysis method comprises the steps that random uncertainty is modeled by adopting random variables, and epistemic uncertainty is modeled by adopting interval variables; uniform samples generated by the random variables in an approximate value section and all the interval variables within upper bounds and lower bounds of respective intervals and a system response value are used as training sample points for establishing a Kriging agent model, and according to the obtained Kriging agent model, the maximum values and the minimum values of the reliability sensitivity, the failure probability and the system failure probability under any interval variable value are calculated by adopting a Monte Carlo simulation method. By the adoption of the structural reliability analysis method, the problems that a traditional agent model under the condition of the hybrid uncertainty has a certain precision locally, and the traditional reliability analysis calculated quantity is larger are solved, and the structural reliability analysis method better accords with engineering practice.

The invention discloses a movable connector with a self-locking device. The movable connector is characterized in that a plug mounting board is provided with a guide post pair; locking grooves with annular structures are arranged on the guide posts; a socket mounting board arranged on a movable seat is provided with a guide cylinder pair and a locking mechanism; the locking mechanism comprises a pair of symmetrically arranged locking claw; one end of the locking claw is a lock hook; the side wall of the locking mechanism close to the guide cylinder is provided with a window adaptive with the lock hook; when the movable connector is connected and locked, the lock hook passes through the window, and the end part of the lock hook is located in the locking grooves on the guide posts. By usingthe movable connector, the problems that the movable connector is lack of a locking device and the connection reliability is weak, and the connector is not convenient to use because that the connector is locked or unlocked with the aid of tools in the prior art, can be effectively solved. The movable connector provided by the invention is stable in connection and good in reliability, can be self-locked after the connector is plugged, and can be unlocked without any tools, thus, the use is very convenient.

The invention relates to a transformer fault diagnosis method based on a neural network. The method comprises the following steps: analyzing fault reasons, and extracting a sample set of dissolved gas in transformer oil and a corresponding a fault type inside a transformer; determining the number of Neurons in a neural network hidden layer according to experience and a successive optimization searching method, and building a neural network; adopting an improved Cuckoo optimization algorithm to train the neural network; and finally utilizing the trained neural network to diagnose a fault of the transformer. The entire design method has the characteristics of high search precision and high global search capability, and effectively improves the accuracy of fault diagnosis for a transformer.

The invention relates to the field of global satellite positioning and navigation, in particular to a satellite searching and dispatching method for a global positioning system (GPS); the method comprises three parts: a classifying satellite possibility dispatching method which comprises the steps as follows: the state of the satellite is judged by the obtained satellite information; each satellite is classified by the satellite state, thus presuming the searching scene further; according to the satellite classes and the searching scenes, different searching weights are arranged for each satellite so as to carry out the searching; a maintaining re-catching method for continuously searching the blocked satellites and a self-adaptive sensitiveness catching method which uses the catching methods of different sensitiveness by aiming at the satellites of different signal-noise-ratio. When the three methods are smartly used, the successful possibility of searching satellite is greatly improved, the time used for searching the satellite is reduced, the starting and positioning speed and the re-catching positioning precision are greatly improved, the power dissipation is reduced, and the problems of robustness and reliability in the satellite dispatching arithmetic are solved, thus improving the feasibility of the receiving machines in the urban forests where the blocking is severe, and greatly improving the experience of the user.

The invention relates to a method for detecting complete blockage of an air conditioning system. The method includes a, enabling an MCU (microprogrammed control unit) to judge whether an air conditioner is in a refrigerating mode or a heating mode; b, judging whether the air conditioning system is completely blocked or not according to the difference between the temperature of an indoor environment and the temperature of a coil of an indoor heat exchanger, the difference between the temperature of a coil of an outdoor heat exchanger and the temperature of an outdoor environment and a relation between the magnitude of real-time current and the magnitude of rated current corresponding to real-time frequency when the air conditioner is in the refrigerating mode and the operating time is longer than or equal to set time; and c, judging whether the air conditioning system is completely blocked or not according to the difference between the temperature of the coil of the indoor heat exchanger and the temperature of the indoor environment, the difference between the temperature of the outdoor environment and the temperature of the coil of the outdoor heat exchanger and a relation between the magnitude of real-time current and the magnitude of rated current corresponding to real-time frequency when the air conditioner is in the heating mode and the operating time is longer than or equal to set time. The method has the advantages that the problem of complete blockage of the air conditioning system can be timely and accurately judged, the intelligent degree of the air conditioner is effectively improved, and the problem of poor reliability caused when an existing air conditioner works in a faulty mode is prevented.

The invention relates to a technology method for connecting a three-body structure of a titanium aluminum alloy turbine rotation shaft, belonging to the technical field of mechanical processing technology design. The three-body structure of the titanium aluminum alloy turbine rotation shaft comprises a titanium aluminum alloy turbine impeller, a K418 high-temperature alloy transition sleeve and a 42 CrMo alloy steel shaft, wherein the K418 high-temperature alloy transition sleeve and the 42 CrMo alloy steel shaft rub through end surfaces and welded with each other, and then the K418 high-temperature alloy transition sleeve and the titanium aluminum alloy turbine rotation shaft are connected with each other through the interference fit of outside diameters and inside diameters. The invention has simple technology and stable and reliable stretch-proof strength and property.

A surface emitting laser having a substrate with top and bottom surfaces; a first stack of mirror layers of alternating indices of refraction located upon the top surface of the substrate; and active layer disposed over the first stack; a second stack of mirror layers of alternating indices of refraction disposed over the active layer and a recessed portion located centrally in the second stack extending through at least some of the second stack of mirror layers for improving the spectral width characteristic of the laser.

The invention relates to an electronic air throttle body for a non-contact sensor, which belongs to air throttle assemblies of automobile engine air inlet systems. The air throttle body is provided with a direct current motor, a motor gear is meshed with a middle gear, and the middle gear is meshed with a sector gear arranged on an air throttle shaft; a rotating position of the sector gear on the body is provided with two protuberant limit stops; one end of a torsion spring is fixed on the body, while the other end is fixed on the sector gear; one end of another torsion spring positioned between the sector gear and a gear blocking cover is fixed on the sector gear, while the other end is fixed on the gear blocking cover; the gear blocking cover is clamped on a hook of the sector gear; and when the air throttle shaft rotates positively to a full open position, a sector gear stop dog resists against one limit dog of the body; and when the air throttle shaft rotates reversely to a low idle speed position, the sector gear stop dog resists against the other limit dog of the body. When the direct current motor has failure and cannot work normally, valves of the air throttle are always in a high idle speed state under the actions of the two torsion springs so as to increase the safety of an engine system.

The invention discloses a double-layer channel variable-section turbine control device, belonging to the field of an internal combustion engine. The double-layer channel variable-section turbine control device comprises a turbine housing, wherein the turbine housing is internally provided with a gas inlet inner channel and a gas inlet outer channel; the gas inlet outer channel is positioned at the outer side of the circumferential direction of the gas inlet inner channel; and a partition wall is arranged between the gas inlet outer channel and the gas inlet inner channel. The double-layer channel variable-section turbine control device is characterized in that the gas inlet inner channel is provided with a gas inlet; the position on the partition wall, close to the gas inlet, is provided with an outer channel gas inlet which is provided with a gas inlet control device; the double-layer channel variable-section turbine control device can effectively guarantee that the double-layer channel variable-section turbine meets the supercharging needs of the all condition range of the engine, simultaneously has no existence of potential unreliability of rotary vane type and axial movement type variable-section turbine supercharger and has simple and reliable products.