308 results about "Reliability assurance" patented technology

A method and apparatus is disclosed herein for a resource allocation protocol. In one embodiment, the apparatus comprises a resource allocation engine to allocate physical resources to primary and redundant virtual infrastructures, wherein, when the resource allocation engine allocates virtual infrastructures, physical resources of redundant virtual infrastructures are shared across multiple primary virtual infrastructures.

The invention relates to the technical field of refrigerators, in particular to a refrigerator of which a shelf can be adjusted in height. The refrigerator comprises a door shelf body and guide rails which are arranged on a refrigerator door and extend in the vertical direction. Limiting structures are arranged between the door shelf body and the guide rails and used for limiting the vertical movement of the door shelf body. The refrigerator further comprises resetting mechanisms. One end of each resetting mechanism abuts against the corresponding guide rail, and the other end of the each resetting mechanism abuts against the door shelf body. The resetting mechanisms are arranged on one side of the corresponding guide rail. The limiting structures are arranged on the other side of the corresponding guide rail. According to the refrigerator, convenience is brought to a user; as the position of the door shelf can be adjusted within the height limited by the guide rails on the two sides, the door shelf does not need to be taken out, and the refrigerator is convenient to operate. Besides, the refrigerator is simple in structure, capable of guaranteeing reliability and easy to install and manufacture.

The invention discloses a satellite network route establishing method based on reliability assurance. The method comprises the following steps of: establishing a primary path by a maximum throughput routing method RADSN of a deep-space communication network; and determining primary nodes; respectively establishing a standby node set for each primary node, and selecting the standby nodes, meeting the requirements, from the standby node set; preferentially executing message transmission of the primary, after finishing the message transmission, transmitting the message, which is same as that transmitted by the primary node, by the standby nodes, until a destination node receives the message. For solving the problem of message loss caused by sudden failure of nodes of the satellite network in the prior art, the invention provides the satellite network route establishing method based on reliability assurance, the reliability of transmission of the satellite network is improved by a method of transmitting the message, which is same as that transmitted by the primary node, by the standby nodes; and simultaneously, a plurality of paths jointly formed by the standby nodes and the primary node are used for multiple transmission of standby messages, miscellaneous property of routing is minimized, and load on the satellite network is reduced.

Embodiments of the invention relate to computerized systems and computerized methods configured to optimize data transmission paths in a large-scale computerized network relative to reliability and bandwidth requirements. Embodiments of the invention further relate to computerized systems and methods that direct and control the physical adjustments to data transmission paths in a large-scale network's composition of computerized data transmission nodes in order to limit data end-to-end transmission delay in a computerized network to a delay within a calculated worst-case delay bound.

The invention discloses a secret information coding and sending method based on TCP effective loads and a corresponding secret information receiving and decoding method. On a sender, an encoder encodes secret information according to a coding schedule consulted in advance; then, the secret information is sent to a receiver. On the receiver, after the receiver monitors and captures a data packet of a fixed port, a decoder carries out TCP effective load extraction on the data packet monitored and captured at the fixed port, and the secret information is obtained through decoding according to the coding schedule. The methods are designed based on a TCP, and the quality and safety of covert channel communication are guaranteed through the reliability of the TCP. High practicality is achieved, the methods can be applied to the actual communication process well, the proportion of coding to non-coding of effective length can be adjusted in a balanced mode, and the controllability of the detection resisting performance of a covert channel is achieved.

An increased area of an element transistor to be evaluated causes an increased leakage current due to a tunnel effect, leading to a reduced accuracy in predicting a TDDB lifetime. A test element group (TEG) 1 is a pattern for evaluating electric characteristics, comprising a plurality of unit transistors T11, T12, T13, T21, T22, T23, T31, T32, T33, which are arranged so as to form a lattice-shaped pattern. Each of the unit transistors comprises a gate dielectric serving as an object to be evaluated, and source region and drain region, which are a short-circuited.

The invention discloses a tree structure-based data aggregation method with reliability assurance. The aggregation method comprises the following steps: generating a tree creating module, an in-tree data aggregation module and a data detection module, and generating a tree revising module. The aggregation method adopts the tree structure to realize fast aggregation of data in the network, ensure that data can be conveniently found and used in the entire network, reduce the communications of the network in the data aggregation process and prolong the service life of the entire network; and the data detection method and the method of generating tree revise are both adopted and the phenomenons such as the damage and death of node can be monitored and found, thus increasing the accuracy and effectiveness of data transmission in the network and the reliability of the entire network.

The utility model relates to a reliability assurance method and a device for transferring TRAP packets in simple network management protocol (SNMP), which can be used for realizing the checking mechanism of SNMP TRAP which can discover the loss of TRAP timely and request resending during transferring SNMP TRAP, comprising a sending source party and a receiving party. The sending source party sends TRAP packets to the receiving party. The TRAP packets contains the current serial number information obtained by numbering continuously according to sending sequence for each TRAP packet sending source party. The receiving party is used for dealing with the TRAP packets to get the current serial number information after receiving the TRAP packets. If the current serial number information is larger than the value by adding the former current serial number information of the TRAP packets and 1, the TRAP packet is defined to be lost during transferring. The lost TRAP packet is the packet corresponding with the missing serial number information between the current serial number information and the former serial number information.

The invention discloses an optimization scheduling method for a comprehensive energy system of a smart park on basis of multiple objectives. The optimization scheduling method comprises the followingsteps: determining and acquiring basic operation parameters of the comprehensive energy system; formulating evaluation indexes of multi-objective operation of the smart park; establishing an optimization scheduling model of a day-ahead economic scheduling stage of the comprehensive energy system; and solving the established multi-objective optimization scheduling model by adopting a mixed linear integer programming solver. According to the invention, through construction of a target function with minimized operation cost in a scheduling stage, on the basis of meeting power balance and safety constraints, evaluation indexes and constraint conditions are established from the perspectives of energy consumption, environmental protection and reliability; starting, stopping and output states ofenergy storage, flexible load and combined heat and power supply controllable units in the system are optimized; and multi-objective optimization scheduling of the comprehensive energy system of the smart park is realized. Thus, economic and environment-friendly operation of the system can be achieved; various energy supply reliability of the system can be guaranteed; and safe, stable, efficient and economical operation of the comprehensive energy system is guaranteed.

A method for testing the service performance of the file transfer protocol in an IPv6 network, the network, including having a client and a server. The method includes the steps of (a) the client transmits a test connection request to the server to establish a connection controlled by the file transfer protocol, (b) after receiving the test connection request, the server establishes the connection controlled by the file transfer protocol, and (c) a connection is established by the server between the client and the server to transfer the test file and perform the performance test of the file transfer protocol. The server can transfer the detecting message for the file transfer protocol in the application layer between nodes in the file transfer protocol network, thereby realizing the detecting and the monitoring in the file transfer protocol. A service performance condition of the file transfer protocol of the network can be instantly detected. Once an abnormity occurs, it can be discovered instantly, and solved by the user, so that the network provides a guarantee of reliability.

The invention relates to a dynamic and static combined interrupt drive program data race detection method. According to the method, through a detection technology of a shared source, a control flow diagram generation technology, a data flow analysis technology and a simulator operational control technology, static analysis is carried out on a source program with a static method so that a potential data race sequence can be obtained, dynamic execution is carried out on the result of static analysis to verify authenticity of potential races, sorting is carried out according to severity of the potential races, and a test result report is obtained. An implemented tool of the method is used for testing an interrupt drive program, the real competitive relation related to interruption can be effectively detected, a series of potential competitive relations are provided for guidance according to the severity, working efficiency of a tester can be greatly improved, data race detection of an interrupt drive is achieved, safety and stability of an embedded system are ensured, and the reliability guarantee can be provided for the key safety fields with the requirement for highly stable embedded programs such as the spaceflight field and the medical field.

The invention relates to the technical field of refrigerators, in particular to a refrigerator with a shelf adjustable in height. The refrigerator comprises a door shelf body, guide rails and a door shelf front cover, wherein the guide rails are arranged on a refrigerator door body and vertically extend, and the door shelf front cover is connected with the door shelf body. The refrigerator further comprises connecting blocks, sliding blocks and reset mechanisms. Guide grooves are formed in the lateral portions of the door shelf body. The reset mechanisms and the sliding blocks are arranged in the guide grooves. The sliding blocks can slide along the guide grooves. One ends of the reset mechanisms are connected with the guide grooves in an abutting-against mode, and the other ends of the reset mechanisms are connected with the sliding blocks in an abutting-against mode. Sliding block clamping connection parts connected with the guide rails in a clamped mode are arranged on the sliding blocks. One ends of the connecting blocks are connected with the door shelf front cover in a clamped mode, and the other ends of the connecting blocks are connected with the upper portions of the sliding block clamping connection parts in an abutting-against mode. By means of the refrigerator, the user convenience is improved, the position of the door shelf can be adjusted within the height scope limited by the guide rails on the two sides without taking out the door shelf, and the refrigerator is convenient to operate; in addition, the refrigerator is simple in structure and easy to install and manufacture, and the reliability is guaranteed.

The invention, which belongs to the field of image processing, proposes a method for extracting a region of interest of a finger vein, thereby providing the reliability guarantee for follow-up fingervein feature extraction and recognition. To be specific, the invention provides a method for extracting a region of interest of a finger vein based on fusion of finger contour and gradient distribution. On the basis of the imaging principle of the finger vein and the characteristic of low absorption coefficient of the near-infrared light by the interphalangeal joint, the finger rotation and gradient distribution are corrected based on the finger contour and the interphalangeal joint position is located; and thus the region of interest having the vein information is extracted automatically. Themethod is mainly applied to the image processing occasion.

The invention provides a dual-redundancy flight control computer and a redundancy management method, and belongs to the technical field of flight control. The dual-redundancy flight control computer comprises a host machine and an auxiliary machine which are similar in redundancy and perform hotbackup, and a communication module, a fault detection module and an arbitration switching circuit module; the redundancy management method comprises task synchronization processing based on a comparison point and fault detection and fault tolerance processing based on a cross comparison method, and by adopting the technical scheme, the reliability of the unmanned aerial vehicle system can be effectively improved, and the unmanned aerial vehicle can be effectively switched to the standby machine after the host has a fault, so that the unmanned aerial vehicle restores normal work and continues to complete the task.

The invention discloses an intelligent monitoring and shooting method and device for a power transmission line, and aims to solve the technical problems that an existing power transmission line troubleshooting method is low in troubleshooting reason efficiency, complex in device and high in maintenance cost. The method comprises the following steps: an intelligent monitoring and shooting device sending a time synchronization pulse to acquisition equipment; determining that the power transmission line has a fault according to the fault related parameters and the recording data; the intelligentmonitoring and shooting device synthesizing the wave recording data and determining the fault type of the power transmission line according to the synthesized wave recording data; triggering an imageacquisition function; and the intelligent monitoring and shooting device determining potential safety hazard information existing in the image data according to the fault type and the acquired image data. Through the method, the number of power transmission line acquisition equipment is reduced, the reliability of the system is improved, and the timeliness of troubleshooting is ensured.

The invention provides an anti-freezing control method and an anti-freezing control device of a cold and hot water unit, and the cold and hot water unit. The anti-freezing control method of the cold and hot water unit comprises the steps of detecting the refrigerant inlet temperature T1 of an evaporator; detecting the air suction temperature T2 of a compressor; detecting the pressure P of any one of an air suction inlet of the compressor, a refrigerant inlet of the evaporator and a refrigerant outlet of the evaporator; judging that the evaporator is in a freezing risk if T1 is continuously smaller than 0 DEG C in a second preset time and T2 is smaller than 0 DEG C or the pressure P is smaller than a preset pressure P1 after the cold and hot water unit is started to work in a refrigeration mode for a first preset time. According to the anti-freezing control method, the anti-freezing control device and the cold and hot water unit, provided by the invention, whether the evaporator is in the freezing risk or not can be jointly judged by detecting the refrigerant inlet temperature of the evaporator, the air suction temperature of the compressor and the refrigerant pressure P, and thus the problem that a heat exchanger is possible to be frozen while the cold and hot water unit works in the refrigeration mode can be avoided; meanwhile, error protection of the cold and hot water unit can be avoided, the reliability is increased, and the running safety and the running stability of the cold and hot water unit can be ensured.

Systems and methods for monitoring, logging, and managing data transformations and data streams of energy management (EM) data energy data sources.

The invention discloses an internet-of-things and cloud computing based intelligent monitoring and fault diagnosis system for mine ventilators. An operating process of the system includes the steps of 1, establishing a ventilator monitoring and fault diagnosis system for each ventilator; 2, integrating all ventilator monitoring and fault diagnosis systems in a mine and a ventilation safety monitoring system to establish mine ventilator air network monitoring systems, through an internet-of-things technology; 3, integrating the mine ventilator air network monitoring systems to establish a group-level ventilator air network monitoring system, through the internet-of-things technology; 4, integrating ventilator users, ventilator manufacturers and ventilator air network fault diagnosis experts in a work environment through a cloud computing platform, improving functions of the ventilator monitoring and fault diagnosis systems to multi-ventilator intelligent control so as to achieve air network intelligent optimization and ventilator fault auxiliary diagnosis. The system has the advantages that a ventilation system is more efficient and reliable, safety production of the mine is guaranteed, an air network is efficient and stable, energy is saved, and consumption is reduced.

The invention provides a method for ensuring the reliability of an 802.16MAC layer supporting service differentiation in a demanding protection way, relating to the field of communication. The invention adopts the technical proposal as follows: the service type is determined as a real time service or a non-real time service according to a connection identifier; three-time handshake process stipulated by IEEE802.16 protocol is executed to the tolerable real time service with time delay t less than time delay t ACK caused by data validation; and improved three-way handshake process is executed to the tolerable real time service or non-real time service with the time delay t more than the time delay t ACK caused by data validation, and received data is validated. The method can conduct data validation according to the service type, thus ensuring the reliability of data, reducing the error rate, improving the network throughput, and promoting the development and application of wireless Mesh network technology.

The invention discloses a visual identification method for a package falling of a crossed belt sorting machine. A plurality of package falling opening camera are arranged on the bag falling side of the sorting machine, a parcel of each discharge package opening is photographed, the physical photograph of the package and the photo of the package which should be discharged under the opening obtainedby the main line camera arranged on the loop line are compared and identified, so that whether the falling package is correct or not is judged. According to the crossed belt sorting machine, the visual identification method for the package falling of the crossed belt sorting machine is provided, a certain number of cameras are arranged at the package falling port for photographing, the wrapping of each discharge package opening is automatically recognized to be not a correct discharge package, and the problem of package falling in the automatic sorting process of the sorting machine is solved, the sorting accuracy of the sorting machine is greatly improved, and the labor intensity of workers is reduced, and the economic loss of the sorting center of the logistics company is reduced, and meanwhile, the reliability guarantee is provided for popularization and application of the logistics cross belt sorting machine.