Nowadays, most networks are constructed based on *** with the IP addresses are becoming less and less, networks based on IPv6 are becoming more and more. So, some application programs based on IPv4 are needed to be im...
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ISBN:
(纸本)9783642286544
Nowadays, most networks are constructed based on *** with the IP addresses are becoming less and less, networks based on IPv6 are becoming more and more. So, some application programs based on IPv4 are needed to be improved to suit IPv4/IPv6 environment. The difference between IPv4 and IPv6 socket is first compared in the paper. Then a FTP program based on IPv4/IPv6 is designed by dual stack software. Syetem test shows that FIT server can support IPv4/IPv6, and the basic functions such as login, authentication of passwords, list of sending files, download files, upload file and delete files were implemented.
software testing which plays an increasingly important role on the assurance of software quality and reliability has been paid more and more attention. However, when to stop testing is still one of the challenges in s...
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ISBN:
(纸本)9783642259074
software testing which plays an increasingly important role on the assurance of software quality and reliability has been paid more and more attention. However, when to stop testing is still one of the challenges in software testing field. Firstly, the stopping criteria for software testing were studied from the theoretical point of view. Then the stopping criteria for software testing based on test quality were put forward. According to the different purposes of testing, two kinds of stopping criteria were discussed, one for software correctness testing (SCT), and the other for software reliability testing (SRT). Referred to the achievements of the stopping criteria for SCT and combined with the characteristics of SRT, stopping criteria for SRT were put forward, which showed when to stop testing can be explicitly decided by the control of the test procedure.
Friction torque is the main factor that influences dynamic response performance of high precise servo systems. To compensate for the friction torque, a compound control strategy based on backstepping and acceleration ...
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ISBN:
(纸本)9783642259074;9783642259081
Friction torque is the main factor that influences dynamic response performance of high precise servo systems. To compensate for the friction torque, a compound control strategy based on backstepping and acceleration feedback with friction observer is proposed. In this control strategy. the backstepping controller with integral element was used for the position loop;the acceleration feedback controller with friction observer was introduced to compensate for friction torque. The simulation results show that dynamic friction torque is inhibited more effectively, and the robustness of system for the exterior disturbance is also improved simultaneously.
We study the problem of representing the Choquet integral w.r.t. an arbitrary capacity as maximum of integrals w.r.t. belief functions. We propose an algorithm and prove that for 2-additive capacities it allows to obt...
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ISBN:
(纸本)9783642294600
We study the problem of representing the Choquet integral w.r.t. an arbitrary capacity as maximum of integrals w.r.t. belief functions. We propose an algorithm and prove that for 2-additive capacities it allows to obtain a decomposition with the lowest number of elements.
This paper analyzed the status and problems of agricultural products logistics development in Henan Province of China, put forward the general concept, guiding principle and development goal of modern agriculture logi...
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ISBN:
(纸本)9783642253485
This paper analyzed the status and problems of agricultural products logistics development in Henan Province of China, put forward the general concept, guiding principle and development goal of modern agriculture logistics development in Henan Province, which will provide theoretical and decision-making references for the relevant government departments and enterprises.
Electric Power Network is the main artery of national economy. It plays an important role in national *** the current rapid development of the Internet, regulating power quality relying on the network has always been ...
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ISBN:
(纸本)9783642279508
Electric Power Network is the main artery of national economy. It plays an important role in national *** the current rapid development of the Internet, regulating power quality relying on the network has always been an important research subject for various countries. Coverage of Internet is wide, full use of its resources make it to be able to control electricity better, and electricity get reasonable regulation during transmission according to the actual situation of power units. As the power network current, voltage, frequency, power factor can get the best match and delivery. Presently, traditional RTU is still widely used in data acquisition, whose communication adapt the way of CAN bus. However, it has been constrained by RS-232. RS-485, which results in the lower communication rates significantly. In order to completely surmount this bottleneck, it is necessary to reform the means of communication, and now through analyzing a large number of network communication, a network communication method is proposed in this paper based on embedded TCP/IP protocols. An intelligent measurement module with microprocessor runing independently is adopted to construct the core telecontrol acquisition part of SCADA system, by which the purpose of high-speed remote data acquisition in electric power system definitely.
This article discusses the common distance education experimental mode in and out of China, and combines with the development needs of modern distance education of Dalian University of Technology, aim at reinforced co...
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ISBN:
(纸本)9783642284656
This article discusses the common distance education experimental mode in and out of China, and combines with the development needs of modern distance education of Dalian University of Technology, aim at reinforced concrete beams to study the virtual demonstration experiment. On the basis of its completion conclusion, through the experimental comparison, experimental analysis, data collection, the feasibility means of achieving are proposed, which provide effective reference for experimental teaching mode.
Simulation training of communication equipment can remove restraints of unfavorable factors well. After researching the relative theory of developing simulation based on HLA, framework of communication simulation trai...
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ISBN:
(纸本)9783642253485
Simulation training of communication equipment can remove restraints of unfavorable factors well. After researching the relative theory of developing simulation based on HLA, framework of communication simulation training system is established and then Communication equipment federation members is designed. Development of object class and interaction class is to determinate data flow and control flow of federation members substantively. This simulation system uses pRTI 1516 as the bottom support system of federation execution for HLA interface development. The researcher will be economizing on manpower and material resources. Furthermore, it will play a significant role in normalizing operation procedure and upgrading technology level.
Built-in test (BIT) of absolute locating sensor of Maglev Train system is an important technique for improving testability, maintainability and fault diagnosis capability of absolute locating sensor system. The basic ...
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ISBN:
(数字)9783642273292
ISBN:
(纸本)9783642273285;9783642273292
Built-in test (BIT) of absolute locating sensor of Maglev Train system is an important technique for improving testability, maintainability and fault diagnosis capability of absolute locating sensor system. The basic principle of absolute locating sensor of Maglev Train is presented in the paper, and it analyses the issue of the absolute locating sensor in detail. An optimization design of BIT is made in order to deal with the problem. The experiment result shows the system can satisfy the practicable application of the absolute locating sensor of Maglev Train.
Fault tolerance has become one of the major concerns in routers or links as the transistor feature size is shrinking leading to gate scaling in Network on Chip (NoC). More number of processing elements (PE) are being ...
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ISBN:
(纸本)9783642283079;9783642283086
Fault tolerance has become one of the major concerns in routers or links as the transistor feature size is shrinking leading to gate scaling in Network on Chip (NoC). More number of processing elements (PE) are being incorporated for inter-connection in system on chip, making it difficult to deliver packets to the destination. Overcome from permanent fault can be achieved using efficient routing algorithms whereas retransmission of faulty packet resolve transient faults in the network. Routing would be efficient, if it can handle multiple faults in the path while managing congestion in the network. In this paper a path based randomized oblivious minimal routing algorithm (FTPROM) with fault tolerance is proposed. FTPROM is derived from parameterized PROM is an oblivious routing. It uses probability functions to provide more diversity to route in the network and handles congestion in better way. Routing follows minimal path in presence of faults both as node and link failure. Simulation results show that the proposed algorithm is effective in terms of congestion handling, latency, and degree of adaptiveness.
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