Safe embedded operating system capable of supporting multi-stage loading

Abstract

The invention provides a safe embedded operating system capable of supporting multi-stage loading. The safe embedded operating system supports the dynamic loading operation of an application program of an embedded terminal, realizes the isolation of the application program and an embedded terminal platform and comprises a system management module, a safety management module, a resource management module, a functional unit module, a GUI (Graphical User Interface) module, an application execution engine module, an application program interface (API) module and the like. Meanwhile, the safe embedded operating system is at least divided into a basic stage and an expansion stage by adopting stage treatment on the basis of the traditional Linux inner core, a basic stage module is fixedly loaded, each module and each functional module in the expansion stage are selectively and dynamically loaded according to application requirements under the scheduling of a system management framework, and thus, loading the system by stage is realized. By using the safe embedded operating system, a function of safety management and control for the application program through a safe framework module is achieved, mechanisms such as end-to-end safe issuing and loading of an application, safe operation protection based on an application process isolation and trust mechanism, application operation monitoring and the like are applied, and safe management and control on the whole life cycle of the application from issuing, downloading, loading to operating is realized.

Description

technical field [0001] The invention relates to the field of embedded systems, in particular to a safe embedded operating system supporting multi-level loading. Background technique [0002] With the rapid development of communication technology, telecommunication networks, computer Internet, and cable digital TV networks are increasingly showing multi-level integration characteristics, and various operators are also developing in the direction of full-service integrated operations, and the core of operator competition is whether they can provide users with Diverse and rich application service products. Embedded terminal, as a user-oriented service control and presentation device, is the ultimate operating carrier of service applications. Operators hope to attract more third-party application developers to continuously develop and deploy new value-added applications rapidly. This requires Technically realize the rapid development, deployment, and operation of terminal servi...

AI Technical Summary

Problems solved by technology

In the process of transplantation, the technical communication between terminal developers and application developers will inevitably lead to a longer application development cycle, and it will not be possible to achieve rapid business development and deployment.

[0006] 2. The application adopts a built-in method, which brings challenges to the configuration of embedded terminal resources

[0007] The application program is embedded in the overall software system of the embedded terminal in the form of a client software library. When the application development develops rapidly and the number of applications is extremely rich, it will inevitably pose a huge challenge to the allocation of terminal resources, resulting in continuous upgrading of the terminal hardware platform. , so that operators repeatedly invest repeatedly, terminal developers repeatedly invest in technology, and disperse investment in new business application development

[0008] 3. The business application update process is complicated and the maintenance cost is high

[0009] The development and deployment of new applications requires the participation of application developers, terminal developers, terminal manufacturers, operators and other links in the industrial chain. The process is complicated and will inevitably lead to high maintenance costs

In addition, the update of an application requires a large-scale user terminal software upgrade, which brings increased operational risks

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