| With the rapid development of China’s economy and culture, more and more movementsof person and cars. Existing mobile-police device has been unable to meet the requirements ofpolicemen’s working. So this paper designs and implements a software system on embeddedmobile-police device, which can ensure that system has real-time data and system is secure.Main contents of this paper include: Firstly, I have analyzed the research background,significance and related technologies of software on embedded mobile-police device;Secondly, I have researched and analyzed requirements of software. I have divided themobile-police software into three modules base on system functions: basic functional module,verification of personnel and vehicles modules. In security, software system must ensure thesecurity of system data and software itself. And I declared performance and availabilityrequirements. Thirdly, I have designed the software architecture. System is divided into datalayer, security reinforcement layer, data acquisition layer, business logic layer and displaylayer using the idea of layering. In the functional architecture design, I refined the systemmodules. I enhanced data protection and the ability to resist reverse engineering in the systemsecurity design. Finally, I implemented the software system on embedded mobile-policedevice. This paper described the implementation process of several major sub-modules. Idiscussed database encryption, data protection and system software protection implementationmethod, and tested and analyzed the system from the angles on database password disclosureand reverse engineering. And I proposed the corresponding optimization measures.This paper not only has implemented the software system on embedded mobile-policedevice, but also has reinforced the security of the software system. The security of softwaremainly consists of two aspects: data security and software security. In order to protect thesystem data better, I have achieved the digital envelope, data encryption and databaseencryption; In order to ensure the software security better, I have finished the function ofdatabase password protection and resistance to reverse engineering.However, the system also has some shortcomings, such as the system interface is notvery beautiful and so on. In the future works, I hope to improve the system in those aspects.In summary, this paper has completed the functional requirements of the software system on embedded mobile-police device, analyzed and optimized the system performance and security.The system is able to achieve the requirements of policemen work and can ensure datasecurity and efficiency of the software system. |
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