935results 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 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 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.

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.

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.

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.

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.

The invention relates to a construction method for a mixed map for the navigation of mobile robots. A whole area is divided into a plurality of local areas, and each local area has an overlapping area with one or more adjacent local areas thereof, visual marks are added in each overlapping area, the mobile robots respectively move in each local area and acquire data of all points in each local area; an occupied grid map principle is employed to have acquired data in each local area generate corresponding local measuring maps; a note is added on each local measuring map, the note comprises a switch node, and the switch nodes correspond to the visual marks of the overlapping areas; and same switch nodes of different local measuring maps are connected, and the topology structure of whole area is formed. According to the method, the reliability of the mixed map can be realized, management and maintenance of the maps can be facilitated, the adaptability and expansibility are realized, and reliable navigation information can be provided for the mobile robots.