Load balancing technology and Web cache technology have high priory to solve the problem of network congestion and server overload and to ensure the supply of uninterrupted, high quality services. As a rising star of server software, Nginx is famous for its high concurrent processing capability, while its performance and scalability are excellent. The load balancing and web cache solution in some typical cases were studied in this paper, and focus on how to design solutions combined with the Nginx and its modules. A virtual Discuz BBS application server cluster environment is designed according to the topology in real network, together with a set of corresponding load balancing and Web caching optimization solution are designed and simulated. Through the analysis of the simulation result, we find that the solution based on Nginx is very significant. It proves that solutions based on Nginx for load balance and Web cache are not only feasible, but also very suitable and efficient for deployment in high concurrent environment.
In the process of self-Reconfigurable for modular robot, the module's assembly, connection, transmission, cantilever deformation and joint flexibility would affect the pose error of the execution module in the end, which would cause the adjacent module not to be properly connected, so the position and orientation of the end module must be calibrated. For analysis, various error factors were attributed to the error of structural parameters and movement variable of the robot. On the "L" structure of the modular reconfigurable robot M-Cubes, the forward product of exponential error calibration model was derived by the nominal coordinate system built on the link coordinate system, in which the rotation coordinate transformation and the translation coordinate transformation caused by the error factors to the nominal coordinate system was amended. The calibrated model would be applied to the "L" structure of the self-reconfigurable robot M-Cubes, which properly calibrate the pose error of the rotary joint axis and hole in the end execution module, and ensure properly connected with the adjacent joints. The foundation was laid for the self-reconfigurable robot.
Digital information technology is the key to realize the efficient management of enterprises. It is necessary to analyze the information technology and provide perfect operating conditions for enterprises in combination with the economic management of enterprises. This article studies enterprise management in the digital information environment, improves the effectiveness of enterprise management methods, and judges the management state of enterprises. At the same time, formula calculation is used to provide a test method for the application effect of digital information technology so that that information technology can be evaluated fairly. The experimental results show that enterprise management also involves inventory management. It is necessary to use information technology to identify products, record the process of products entering and leaving the warehouse in combination with code scanning technology, and optimize the product management process. In the process of enterprise management, the process management form should be adopted to improve the reliability of management methods and ensure that the enterprise has a normal management mode and perfection of enterprise operation state. It proves that digital information technology can promote the development of enterprises, improve the reliability of enterprise management, and reduce the impact of adverse factors on enterprises.
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