Abstract. The smartphone segment has been witnessed the fastest growth in the handset market.Traditional phones will be replaced by smart phones. At the same time, smart phones may be used for fraud, forgery and defamation and other criminal activities.Symbian smartphones forensics is relatively a new field of interest among scientific and law enforcement.There are various mobile phones forensics process models now. But these models may not be able to solve the problems of the Symbian smartphone's adoption.In this paper,we describe a process model for forensic analysis of Symbian smartphones. As a result,this model can overcome some problems of the traditional model of digital investigation on Symbian smartphones.
In response to the demand of the development of energy Internet for the comprehensive perception and wide interconnection of massive data of power system, the concept of ubiquitous power Internet of things(UPIoT), which comes from the deep integration of Internet of things technology and smart grid, has been put forward, becoming an important content and key link in the transformation and upgrading of power grid enterprises. The centralized computing mode previously adopted by smart grid can no longer meet the needs of large-scale computing and rapid response, so the ubiquitous power Internet of things should adopt the operation mode combining centralized computing and distributed computing. Firstly, this paper discusses the basic concepts and main characteristics of ubiquitous power Internet of things. Based on edge computing, this paper constructs the basic architecture of substation internet of things composed of perception layer, network layer, platform layer and application layer. Secondly, it discusses the key technologies in the construction of substation internet of things, and finally analyzes the specific application of edge computing in the construction of substation internet of things.
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