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This paper introduces the concept of Voice Assistant, the voice recognition service providers, several typical Voice Assistant product, and then the basic working process of the Voice Assistant is described in detail and proposed the technical bottleneck problems in the development of Voice Assistant software.

With the deepening reform of the management system of modern enterprises, the effective use of new technology and science has become increasingly important to every enterprise in order to make themselves in an invincible position in the competition must establish their own set of efficient operation of information management systems, the company embarked on a road of healthy development. Based on this, the paper mainly discusses the use of computer management information systems in the modern enterprises.

Composite material is becoming the key material of aviation industry, in this paper we get the optimal detection parameters of aircraft honeycomb structure by digital ray detection technology after many trials and testing image contrast, using gray linear transformation and reliefs enhancement technology to improve image contraction and sensitivity.

Among the digital monitoring system, MPEG4 encoding compression technology and embedded technologies are widely used, chemical embedded MPEG4 video surveillance system has a broad market prospect and highly advanced technology. In this paper, the MPEG coding standards and on the basis of analysis of the characteristics, given a set of MPEG4 video surveillance system design, and implementation are integrated MPEG4 exposition, after the actual chemical application shows that the system performance stable, real good, do not need to assign someone to manage, scalability is also very good.