938results about How to "Achieve reliability" patented technology

In a wire connector, when a manipulation button 40 is pushed into a casing 10, a manipulation portion 43 of the manipulation button 40 pushes down one side of a leaf spring 30, whereas by pressing and locking an upper surface of the manipulation button 40 to a corner portion 11 of the casing 10 due to a reaction of the leaf spring 30. Accordingly, it is possible to provide the small wire connector which is simple in structure, high in reliability of contact, and easy in assembly and connecting operation.

The present invention relates to a mobile Internet parking management method and system. The mobile Internet parking management method includes the following steps that: a server receives a reservation parking request sent by a client and generates reservation information according to the reservation parking request and allocates a reserved parking space; when a reservation automobile arrives at the entrance of a parking lot according to a reservation, the server searches the reservation information according to automobile information uploaded by the entrance of the parking lot and instructs the entrance of the parking lot to carry out parking according to the reservation information; when the automobile leaves, the server calculates parking fees of the automobile and sends fee payment information to the client so as to prompt the user to pay the fees; and after the server receives online fee payment of the client, a current parking process is terminated. With the mobile Internet parking management system of the invention adopted, the user can carry out registration and make a reservation in advance, the registration and reservation are directly recorded through the system, an unoccupied parking space is reserved; and when an automobile is being parked, the system automatically identifies whether the automobile is a reservation automobile. With the mobile Internet parking management method and system adopted, a situation that a large number of parking space guidance and automobile searching devices are installed in a parking lot can be avoided, investment cost and system maintenance cost can be saved.

The invention relates to a method and a system for building a big data distributed log. The method comprises the following steps that: 1, a log transmission sub system receives log data from a service system, generates a UUID (Universally Unique Identifier) for each piece of received log data, and sends the log data with the UUID to a log storage sub system through a plurality of nodes after the load balance; 2, the log storage system receives the log data, and stores the log data in a horizontal expansion mode; and 3, a mass log processing sub system extracts the log data stored in the log storage sub system, uses a MapReduce algorithm to regularly perform mass pre-processing on the log data, and generates a report by the hour and a report by the day to be required by an external service report system. The method and the system have the advantage that the requirements on the reliability, the real-time performance, the high performance, the high expandability and the maintainability of a log system under the big data condition can be met.

The invention discloses a metadata processing method and device, and is used for realizing the reliability and the availability of a metadata write operation in a distributed storage system. The metadata processing method provided by the invention comprises the following steps: a main node obtains a metadata write request sent from an access side, wherein the metadata write request comprises the metadata which needs to be uploaded into the distributed storage system, the distributed storage system comprises 2N+1 nodes, one node is a master node, rest nodes are 2N slave nodes, and N is a non-zero natural number; the master node stores the metadata according to the metadata write request, and independently sends the metadata to the 2N slave nodes; and if the master node receives confirmation information returned after at least N slave nodes in the 2N slave nodes store the metadata, the master node sends metadata write response to the access side.

The invention discloses a wireless self-organized network-based integrated heterogeneous emergency communication network. The emergency communication network comprises a layered framework, a layered framework-based system structure and a layered framework-based network structure, wherein the layered framework consists of a communication network layer, an information acquisition layer, a distributed computation layer and an application service layer sequentially from bottom to top; the system structure consists of a network infrastructure layer, a public service layer, a specific functional layer and an application system layer sequentially from bottom to top; and the network structure is a layered three-dimensional communication network structure. The emergency communication network provided by the invention can adapt to various emergency network deployment situations, can provide network capacity and a coverage area at any given time or place as required, can be conveniently expandedto a network of a required scale, enhances situational perception capability of an emergency occasion by comprehensively utilizing various communication measures, shortens transmission time delay andcall establishment time, can support the requirement on the performance of various services and expands the communication ranges and service support capabilities of various user groups on different emergency occasions.

The invention specifically discloses an embedded agency monitoring device and method supporting real-time operating state acquiring. The device comprises a monitoring server, at least one node server and a client end browser; each node server is communicated with the monitoring server which is communicated with the client end browser; the node server comprises a hardware monitoring agency module, a platform application monitoring agency module and a service monitoring agency module; the monitoring server comprises a hardware monitoring processing module, a platform application monitoring processing module and a service monitoring processing module; and the hardware monitoring agency module is communicated with the hardware monitoring processing module, the platform application monitoring agency module is communicated with the platform application monitoring processing module and the service monitoring agency module is communicated with the service monitoring processing module.

The invention discloses an evaluation method of reliability of an aerospace electronic product based on a failure mechanism. On the basis that an analysis method with a combination of physical simulation and a test is adopted, a physical simulation model of the electronic product is constructed, the means such as sensitivity analysis, Monte Carlo analysis, and stress analysis are adopted, and product key elements are identified and in combination with actual working conditions of the elements, a failure mechanism analysis is conducted. Currently, the failure mechanism analysis aiming at the elements is a means used for analyzing a failure reason after a failure occurs during the test or in the using process of the electronic product, thus pertinent improvement is conducted on the product, the service life of the product is prolonged, and the reliability of the product is improved; the failure mechanism analysis aims at finding key characteristic parameters which affect the service life and the reliability of weak elements as an independent variable of the reliability model.

The invention relates to an anti-blocking-and-hanging drilling well water-secluding pipe recovery guiding device. The device is characterized by comprising a support, a guiding chamber, a rubber sleeve, a rubber sleeve pressing ring and a supporting device; the support is provided with multiple connecting legs, multiple supporting device lower portion mounting holes are formed in the outer side of the support, and a guiding chamber mounting hole is formed in the middle of the support; the guiding chamber is in a horn-mouth shape, the rubber sleeve is arranged inside the guiding chamber, and the rubber sleeve pressing ring is arranged at the top of the guiding chamber; the supporting device comprises an upper supporting barrel, a wearproof bushing, an upper supporting barrel cover, a connecting rod, a spring, a lower supporting barrel cover, a piston, a piston embracing clamp and a lower supporting barrel; the wearproof bushing is arranged inside the upper supporting barrel, and the piston is arranged inside the lower supporting barrel; a groove is formed at the outer side of the piston, and the groove is matched with the piston embracing clamp; the upper end and the lower end of the connecting rod are both spherical bodies, and the spring is arranged at the outer side of the connecting rod; the spring is provided with an installing ring. The device is simple in structure, convenient to operate, high in reliability and easy and convenient to assemble and can be widely applied to all types of maritime water-secluding pipe anti-blocking-and-hanging recycling operation.

The invention provides a method for segmenting a white blood cell image, which is characterized by comprising the following steps: firstly carrying out binaryzation on the green component picture of a color white blood cell image to obtain an initial interested region based on a significance attention mechanism of human vision; carrying out cancellation and mergence on a region by labeling the initial interested region to obtain an adaptive significance window of each cell; and finally realizing segmentation of nucleuses and cytoplasm in each adaptive significance window by a boundary-extending method. The segmentation method is used to realize the fast segmentation of the white blood cells, particularly the accurate segmentation for high-capacity pictures which are the non-standard dyed and contain overlapped cells.

The invention relates to a multiple-factor detection system for the aging condition of a fuse. The system comprises an adjustable constant current source, an adjustable thermostat, a temperature acquisition device, a resistance measuring instrument and a PC machine, wherein the adjustable constant current source is connected in series with the fuse to be detected; the adjustable thermostat is used for simulating the on-site operating condition of the fuse to be detected; the resistance measuring instrument is used for measuring the resistance data of the fuse to be detected in the thermostat periodically or in real time; the PC machine is connected with an output end of a multi-channel acquisition card and used for receiving temperature data acquired by the multi-channel acquisition card in real time, analyzing the temperature rise characteristic of the fuse, and judging whether the fuse is aged or not by combining the resistance data transmitted by the resistance measuring instrument. The multiple-factor detection system for the aging condition of the fuse can measure purchasing fuses, stock fuses and fuses in service; and through the system, the use safety of the fuse can be effectively enhanced.

The embodiment of the invention provides a low-coupling distributed streaming computation framework with a master / slave architecture. The low-coupling distributed streaming computation framework comprises a distributed service environment, a cluster management master node, cluster work slave nodes and cluster service process nodes; the distributed service environment is used for storing the operation states, the load states and the task execution states of various distributed nodes; the cluster management master node is used for managing the operation states of cluster nodes and distributing tasks to the various cluster nodes; the cluster work slave nodes are used for executing tasks distributed by the cluster management master node and caching intermediate results of task execution in a Kafka; and the cluster service process nodes are used for consuming messages generated in the Kafka and obtaining service results. The low-coupling distributed streaming computation framework can be applied to streaming data process under multiple conditions, modules are fully decoupled, dynamic shrinkage and expansion can be achieved, redundant backup of data is achieved, and the service reliability can be achieved by means of the backup mechanism of the master node.

A single physical channel carries “fast feedback” information in such a way that each type of data is on a physical sub-channel. The sub-channels are not “logical” channels in that they cannot be separated by logical functions alone because some knowledge of the modulation mechanisms is required. Each sub-channel is independently channel coded (this is outer channel coding if an inner code is applied). The resulting code symbols from all sub-channels are then merged into one set of symbols. These code symbols can then optionally be concatenation interleaved and inner channel coded, if the performance enhancement is desired and the complexity is acceptable. The result is then extended by code symbol repetition to provide a total number of symbols greater than or equal to one of the possible quantities of symbols per frame supported by the physical channel, and then decimated (symbols deleted) to provide a number of symbols equal to one of the allowable quantities of symbols per frame. The result is then interleaved, and transmitted over the physical channel.

The invention discloses a spectrum OCT (optical coherent tomography) image method and relative system based on optical scanning delay line, wherein it arranges an optical scanning delay line in a reference arm of a spectrum OCT system, to realize scatter-free phase shift of reference light and system scatter compensation. And when guides in optical scanning delay line based on double gratings, the invention can generate group speed scatter and third-order scatter formed by any marks in large change range, to accurately match the scatters of reference arm and sample arm in spectrum OCT system. The scatter-free phase shift and scatter compensation can assure the axial resolution ratio of spectrum OCT system, eliminate coherent noise, and expand the image depth for one time. The invention is significant for dual-spectrum OCT system with ultra-high resolution ratio.

Provided is a bending test apparatus of a flexible device. The bending test apparatus includes: first and second electrode parts disposed in a horizontal direction and loading a flexible device horizontally, wherein the first electrode part is movable in the horizontal direction and the second electrode part is fixed so that the first electrode part horizontally moves toward the second electrode part to apply mechanical stress of the horizontal direction to the flexible device.

The invention discloses a memory management method applicable for an embedded system, comprising steps of: providing a memory area with a certain volume; dividing a memory area into a plurality of memory branch areas and unit memory blocks; when it is necessary to provide memory, distributing the unit memory block greater than needed memory for use. The memory management method related to the invention uses a memory layout aiming at the embedded system, distributing memory via simple algorithm in a high effect manner and detecting whether memory error occurs.

The invention relates to an electrical parking system capable of meeting automatic driving requirement. The electrical parking system is characterized by comprising an automatic driving control module, an electrical parking controller, an electrical parking actuator, an electrical parking switch, a brake controller and a brake actuator, wherein a CAN signal communication terminal of the automatic driving control module is connected with a CAN signal communication terminal of the electrical parking controller and a CAN signal communication terminal of the brake controller through a CAN bus; a parking actuating hardwire interface of the electrical parking controller is connected with a hardwire interface of the electrical parking actuator through a hardwire; a parking switch hardwire interface of the electrical parking controller is connected with a hardwire interface of the electrical parking switch through a hardwire; and a brake actuating hardwire interface of the brake controller is connected with a hardwire interface of the brake actuator through a hardwire. Through the adoption of the electrical parking system disclosed by the invention, reliable parking and release functions of an EPB on an automatic driving vehicle are achieved.

A device for laying a flexible material web 1 on a point of deposit 4 and which has at least one pair of deposit rollers 2, 3 that rotate in opposite directions. The deposit rollers 2, 3 form part of a deposit carriage 5 which is reciprocated in a reversible direction over at least the deposit length L of the material web 1. The device is more cost-effective in that the deposit carriage 5 has a smaller width than the point of deposit 4 and is reciprocated in a reversible direction over at least the deposit width B of the point of deposit 4.

The invention provides a control system trusted architecture-based TPCM (Trusted Platform Control Module). The TPCM comprises an internal bus, a TPM (Trusted Platform Module) processing module, a program memory, a configuration memory, a data memory and an integrity detection unit connected with the internal bus, and a bus arbitration management unit. The invention also provides a TPCM-based trusted detection technology. The technology comprises trust chain generation and transfer of trusted equipment, integrity trusted detection of basic information of a trusted process in a trusted operation system and integrity and trustiness detection of an executable file loaded by the trusted process. The control system trusted controllable architecture and the trusted detection technology which combine functional safety and information safety, combine external defense and internal defense, and cover the design, operation and service full life cycle of hardware configuration, software programming, network communication, real-time operation, engineering maintenance and the like are provided, and the reliability, the safety, the real-time property, the usability and the maintainability of an industrial control system are guaranteed.

The invention brings forward a data query method and system based on Key-Value data blocks. The method comprises following steps: selecting dimensions of data aggregation based on attributes of perception data, clustering perception data of the same attribute dimension in common, saving perception data to a same data block and utilizing selected data dimensions as attribute information corresponding to data blocks; adopting Key-Value data format to save and manage data in the data blocks; and saving and managing storage positions and corresponding attribute information by adopting a relational database. The data query method and system based on Key-Value data blocks has following beneficial effects: a deluge of perception data on the Internet of Things can be read and written in an efficient manner without using a great number of computers; and the data block is easy to expand according to business scale.

The invention discloses an acoustic emission testing apparatus with acoustic emission sensors built in a true triaxial chamber. T-shaped cavities are processed in rock sample clamps in three directions of a true triaxial electro-hydraulic servo mutagenesis testing system; the acoustic emission sensors are placed in the T-shaped cavities; a rubber plug located at an end part is used for fixing an acoustic emission signal line; the lead-out signal line is connected with a BNC adapter equipped with a terminal; the BNC adapter is directly connected with an amplifier to form a complete acoustic emission monitoring system; and the tail part of each acoustic emission sensor is fixedly connected with a push rod through a magnet piece, the push rod, a spring pad, a hard spring and minisized screws form a force-transferring mechanism together, and the acoustic emission sensor and a rock sample are allowed to always maintain tight contact in virtue of the mechanism. The acoustic emission testing apparatus is simple in structure and strong in operability; the acoustic emission sensors are repeatedly usable; considerable interference signals produced by external arrangement of the acoustic emission sensors are substantially reduced; and authenticity and reliability of acquired acoustic emission signals are guaranteed.

The invention discloses a computer system based on multi-module redundancy embedded software, which is composed of three redundancy modules: a system management module used for initializing system start; a data IO module used for receiving the data of the external redundant input; a voting module used to realize the synchronization and data exchange of the three redundancy modules and voting output, fault detection and system reconfiguration; a flight control module used for command processing and control rule solving; a recorder used to recording and storing data, and performing data exchangewith the host computer. The invention also discloses a design method thereof, comprising the following steps: S1, the redundancy modules are deployed; S2, reading the input data by the data IO moduleafter synchronization; S3, three redundancy modules interact with one other to input data; S4: the voting module performs input data voting and output right voting. The whole software system adopts athree-module redundancy architecture, and the FPGA also adopts the three-module redundancy architecture, which can realize the high reliability of the system in case of failure.

The invention relates to a method for transmitting optimized data in vehicular network based on geographic position. The method is as follows: a source node sends target node position request information; the target node responds to the target node position request information, and periodically updates position information of the target node on each node; a neighbor requests sending information; another neighbor answers sending the information, and the position information is obtained through a vehicular GPS system; transmission of data packet: data are transmitted in packet by routing greed transmitting arithmetic in a protocol according to a common geographic position; two retry systems during data transmission are as follows: the retry systems are started when the greed transmission does not find proper next jump at the data transmission, and the systems have two stages: one is only to increase reserved time for waiting neighbor table establishment; and the other one sends out new neighbor request message, and fully reestablishes a neighbor table. The method reserves multiple advantages of the prior mature route protocol well, and can be simply applied in the prior network without large range of change.

This invention provides an air-conditioner that continues a heating operation while performing a defrosting operation. A first bypass circuit 6 is provided for connecting the portion of a heat-pump-type refrigerating cycle between an indoor heat exchanger 3 and a decompressor 4 to the suction side of a compressor 1. The first bypass valve 6 is provided with a two-way valve 7 and a refrigerant heater 8. Further, a second bypass circuit 9 is provided for connecting the portion between a four-way valve 2 and the indoor heat exchanger 3 to the portion between the decompressor 4 and an outdoor heat exchanger 5. The second bypass circuit 9 is provided with a defrosting two-way valve 10. To defrost the outdoor heat exchanger 5, the decompressor 4 and the defrosting two-way valve 10 are closed according to outside air temperature and a fan 19 is rotated to perform a first defrosting operation. When the temperature detected by the temperature means of the outdoor heat exchanger is less than a predetermined value while the first defrosting operation is within a preset period of time, the two-way valve of the second bypass circuit is opened and an outdoor fan is stopped to perform a second defrosting operation.

An authentication system comprises: a generating part for generating face information including at least one of three-dimensional shape information and two-dimensional information in the face of a first person to be authenticated on the basis of measurement information of the first person; a model modifying part for modifying a standard model of a human face by using the face information, thereby generating an individual model of the face of the first person; a calculating part for calculating a first model perfection level as a perfection level of the individual model on the basis of reliability of the face information; an extracting part for extracting first feature information as feature information of the first person from the individual model; an obtaining part for obtaining second feature information as feature information of a second person to be compared which is pre-registered; and an authenticating part for performing an authenticating operation on the first person by using the first model perfection level in addition to similarity between the first feature information and the second feature information.

The present invention relates to a rotation angle determination device (1) used for determining the rotation angle position of a rotating shaft (10). The device comprises the following components: a main rotor (11) which is coupled with the rotating shaft (10) and is provided with a first sensor unit (12) for determining the rotation angle position of the main rotor (11); and an additional rotor (13) which is rotatably coupled with the main rotor (11) and is provided with a second sensor unit (14) for determining the rotation angle position of the additional rotor (13). According to the invention, each of the sensor unit (12, 14) is provided with at least one sensor with induction effect and at least one sensor with magnetic effect.

A greedy data forwarding method of vehicle-mounted network based on direction comprises: source node transmits target node position request message in aimless flooding broadcasting style; target node periodically updates target node position message on every node in response to position request message of target node; every node periodically broadcasts and transmits beacon message in self one hop range; the message is provided by GPS; every node establishes and updates neighbor table according to node position information and movement direction information after receiving beacon message transmitted by neighbor node; data packet forwarding: data packet is forwarded according to greedy forwarding algorithm of ordinary geographical position route protocol; if proper next hop is not found, then direction forwarding is enabled. The inventive method combines traditional standard routing protocol, keeps many merits of existing mature routing protocol, and can be easily used in existing network without need of large range modification.

The present invention provides a portable reactivity meter for carrying out full measuring range automatic monitoring on the reactor signal, and a reactivity correction method. According to the present invention, the reactor signal input portion supports USB data communication, is connected with a computer through USB, and can flexibly support online measurement and offline treatment on the reactivity; the portable reactivity meter is provided with a high-precision micro-current measurement unit, the neutron detector current value is read through an industrial-grade high-precision electrometer, the bus communication circuit is matched to form the micro-current measurement channel of the reactivity meter, and the current mature micro-current measurement technology is integrated into the reactivity meter so as to produce the intrinsic improvement effect on the precision and the stability of the reactivity meter; and with the system adopting the image value to recognize the non-intrusive read nuclear instrument display value, the disadvantages of the hardware intervention, time-saving and easy mistake during human reading in the previous nuclear instrument data acquiring way are overcome, and the nuclear instrument display value can be recognized as the data only requiring the camera so as to achieve the real-time collection and sharing of the important data.

The invention relates to a laboratory environment and equipment wireless monitoring and alarming system, belonging to the wireless monitoring field. The system comprises n wireless probes, one base station node, one PC and a prepared monitoring program therein, one GSM module and a user mobile phone, wherein, n is a positive integer; and the wireless probes establishes alletizin with the base station node through a short distance wireless communication protocol networking, the base station node is accessed into the PC by a serial port, the GSM module is accessed into the PC by a USB interface, and the PC is used for operating the monitoring program. The system can realize reconfigurability and availability of equipment by designing the wireless intelligent probes, realize convenient system layout by a short distance wireless communication technology, realize variety and realiablity of an alrming mode by the GSM module, and realize real-time property for updating wireless probe parameters by an online parameter table synchronization technology.

The invention provides an automatic verification platform and method for an on-chip memory management unit fault-tolerant structure. The automatic verification platform and method can conduct random fault injection verification on the fault-tolerant structure and are high in verification coverage rate. The platform comprises a debugging host and a to-be-tested host connected through a serial port. The debugging host is used for flow control verification, encoding result checking, fault injection, decoding result checking in the verification process, and monitoring and debugging of a processor. The on-chip memory stack fault-tolerant structure is integrated in the to-be-tested host and used for generation of check codes, decoding verification after decoding logic and fault injection and loading of an automatic verification program for the memory stack fault-tolerant structure. The memory stack fault-tolerant structure comprises a memorizer control module, a fault-tolerant module, a selector and a memory stack. The memorizer control module and the fault-tolerant module conduct read-write control over the memory stack through the selector to control the working mode and the failure mode of the on-chip memory stack fault-tolerant structure.