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To overcome the lengthy search time, massive space occupation, and overlong planned path of the traditional A* algorithm, this paper integrates the bidirectional search with the intelligent ant colony algorithm to obtain the heuristic function selection factor, and uses the factor to improve the evaluation function of the algorithm. The simulation results show that the improved algorithm achieved better dynamic navigation than the traditional A* algorithm both in search time and distance, featuring shorter path searching time and the algorithm running time. Therefore, the result of this research has effectively reduced the search time and enhanced the dynamic search.

The wireless sensor networks is a new technology for information acquisition and processing, which includes the techniques of sensor, computer, Internet of Things and network. Due to the fragility of wireless sensor networks, the security issue has become a prevalent concern in the wireless communication for Internet of Things. This paper offers a deep insight to the secrecy capacity of wireless sensor network and a calculable threshold of capacity based on the amplify-and-forward (AF) compressed sensing scheme. Moreover, we provide a feasible algorithm based on augmented Lagrange method for source reconstruction for the legitimate nodes and un-authorized nodes. Furthermore, we also discuss the impact of the numbers of active sensor nodes, relay nodes and eavesdropper nodes to the secrecy capacity. Simulation results demonstrate the correctness of the derived secrecy capacity.

Network-faxing service system is integrated with telephone network and Internet .NET Framework is an internal Windows component which supports to build and run nextgeneration applications and XML Web Services. Online payments provide a safe, fast and convenient electronic business environment and on-line financing settlement tools for enterpriser and individual. Network-faxing is a modern communication network technology with the new rise of a network communication mode, this paper discusses how to realize a networkfaxing service system with the .NET Framework, paymentonline technology and voice Fax Card.

This paper base on the application of the Internet of things in the logistics industry as the breakthrough point, to investigate the identification technology, network structure, middleware technology support and so on, which is used in the Internet of things, also to analyze the bottleneck of technology that the Internet of things could meet. At last, summarize the Internet of things’ application in the logistics industry with the intelligent port architecture.

This paper designs and implements a Smart Card Operation System COS which accords with national and industry standards, possesses high security and good compatibility. Firstly, the hardware structure of Smart Card is introduced, then the architecture and work principle of Smart Card COS are explained, and the design and implementation of Smart Card COS is discussed from four function modules such as transmission management, command interpreter, security control and file management. Finally, an application instance - SIM card is given to show the application on Smart Card.