Advanced Engineering Forum Vols. 2-3

Abstract: Absence of trusted online transaction environment (TOTE) becomes the biggest obstacle to e-commerce development, which embodies three key problems: unauthentic identity information, false product information and insecure transaction process. In order to present a systematic method to build trusted online transaction environment with identity authentic information, accurate product information and secure transaction process, this article puts forward a framework composed of three information infrastructures: Identity Authentication Service (IAS), Product Information Service (PIS) and Electronic Contracts Service (ECS). They have been implemented in online pharmaceutical transaction field in China, and have facilitated all online transaction participants such as pharmaceutical manufactures, dealers, consumers, online market operators and government regulators.

Abstract: The quick development of internet technology and electronic commerce has driven the demand of internationalization of logistics services. The internationalization trend of logistics requests that local logistics system should integrate with other information systems in terms of data, business and knowledge. However, the integration among heterogeneous systems has always been the key problem to the development of internet technology. More and more information systems of the logistics enterprises become “information solitary islands”, due to the incompatibility of IT en-vironment, database format or knowledge structure. As the demand of business and technique changing, a large number of “solitary islands” are destined to be legacy systems, which causing a great waste of resources. The article employed the SOA (Service Oriented Architecture) framework and ESB (Enterprise Service Bus) technology to solve integration problems among heterogeneous systems. SOA is a software architecture theory, which based on services as components. ESB is employed to supply SOA with base architecture of message-oriented middleware in the term of in-cremental bus. However, there isn’t any integrated design method for logistics system based on SOA & ESB up to now. To fill the gap, this article presents an integrated design method through analyzing the integration environment of logistics platform, building service directory, designing system architecture and service components. The most significant results show that Firstly, this ar-ticle has presented a stratified implementation model for logistics platform to implement SOA con-cept into system model framework, so as to guide the design and development. Secondly, it also presents methods of system analysis and design with samples in following steps: service catalogue design, integral architecture design, service design, service and module depending design and ser-vice implementation design. The whole design method has been used successfully in actual project of design and development of international logistics platform. It is proved that this method can effi-ciently create integrated service logic, reduce the cost of design and development, and improve the compatibility of logistics system.

Abstract: Ballistocardiogram signal (BCG) is a non-invasive technique for the assessment of the cardiac function. It consists mainly of heart movement and the movement of blood in aorta, arteries, and periphery, which can be used to real-time monitor the heart rate and respiration frequency at home. In our laboratory, a sitting BCG detection chair has been designed successfully, and the acquisition and analysis system based on virtual instruments is proposed in this paper. MATLAB7.0 and LabVIEW8.5 were used to simulate the operational environment, and the results show high efficiency and accuracy in displaying waveform and spectrum, extracting main characteristics of heart rate and respiratory frequency, and alerting when abnormal heart-rate occurs.

Abstract: Aiming at the limited resources and the security issues in wireless sensor networks, a routing approach is proposed. In this approach, the factors of reputation, remaining energy, and the distance to the destination are taken into considered while searching a routing path from an original sender node to the destination. A reputation-based mechanism is also proposed, and a node’s reputation depends on its behaviors. The malicious behaviors nodes will be punished and isolated, and the cooperative ones will be rewarded. Simulation results show that our proposed routing scheme can prolong the lifetime of the network and can offers a relatively high throughput than other routing protocols even when there are malicious nodes in the networks.

Abstract: The paper mainly researched the game actions among partners in complex interactions supported by Web Service. It studied web service provider’s implementation decision satisfied with perfect Bayesian equilibrium thus results a controllable equilibrium route in voluntary implementation. It also contributes to the problem of voluntary implementation when the planner is also a player and finds out the full characterization of it. So the implementation mechanism can always get the reconciliation of web service, which is able to effectively facilitate dynamic interactions among trading partners in a peer to peer mode.

Abstract: This paper builds an efficient agent-based flexible scheduling for real-world manufacturing systems. Considering the alternative processes and alternative machines, the allocation of manufacturing resources is achieved through negotiation among the job and machine agents in a multi-agent system (MAS). Ant Colony Intelligence (ACI) is proposed to be combined with Contract Net Protocol (CNP) so as to make agents adaptive to changing circumstances. ACI is integrated into both machine agents and job agents to solve the task allocation and sequencing problem. CNP is introduced to allow the agents to cooperate and coordinate their local schedules in order to find globally near-optimal robust schedules. The negotiation protocol is an interactive bidding mechanism based on the hybrid contract net protocol. The implementation of the issues using CNP model is discussed. Experimental results verify the effectiveness and efficiency of the proposed algorithm integrated with ant-inspired coordination.

Abstract: In this article, the definition, the nature and the parameter of the NURBS (Non-Uniform Rational B-spline) curves are defined, the more thorough analysis and research of the real-time NURBS curve interpolation algorithm and the feed rate adaptive control are carried out.

Abstract: The computer simulation method is used to test the correctness of the NURBS curve interpolation algorithm, through the comparison of the five S-phased curve acceleration and deceleration control method and the line acceleration and deceleration control method, to validate the superiority of the five S-phased curve acceleration and deceleration control method.

Abstract: The moments transmitted by a universal joint in varying operating condition was investigated. A model of shaft system driven by a universal joint which consists of a driving shaft, a driven shaft and a cross piece is chose. Both structure misalignment and error misalignment between the two shafts at the universal joint was considered, and the study was based on the assumption that friction, inertia and elastic forces of the cross piece were disregarded. Two pairs of Euler angles were introduced to denote structure misalignment and error misalignment respectively, sets of reference frames were built up on the driving shaft, driven shaft and cross piece. Using direction cosine matrixes to describe the relation between different frames, then the expressions of components of the Considering the processes of manufacturing enterprise design, plan, technology, manufacture and etc, it analyses the composition and interdependence of enterprise information system data in this paper. Emphasizing the technical and process section data, analyzing these data’s source, attribute and outgoing. It creates an integral information system basic data model, obtains a system overlap model of these kinds of source data acquisition, provides a settle method for source data incomplete, inaccurate, and substandard of the manufacturing enterprise information system.

Abstract: There are a lot of dynamic changing problems for design version in the complex product design process. We have study a dynamic version control technology for result it. Firstly, we have researched the three level version control model, including the complex product structure layer, the node version tree layer and the version structure layer. Secondly, we have researched the version control model operations, including the version structure operations and the version operations, and analyzed the implementation of the version generation function and the version mergence function. Finally, the method has been applied and verified in the development of an aircraft flight loads integrated design platform.