A device interface control method and system based on an Android system

Abstract

The invention discloses a control method and a control system for a device interface based on an Android system. The method provided by the invention comprises the following steps: initializing a service module of a hardware abstract layer, thereby generating a socket; after calling a client module of an application program layer, establishing communication connection with the service module through the socket; validating the right of the client module, thereby judging if the client module has the right for accessing the device; if yes, executing the next step, and if not, ending the operation and informing the client module that the client module has no right for accessing the device; and after sending an operation command and a corresponding data of the device interface to the service module by the client module passing the right validation through the socket, controlling the device corresponding to the device interface to operate by the service module through the device interface and feeding back a result of the device operation to the client module passing the right validation by the service module. According to the control method and system provided by the invention, the generality and the safety of the Android system are kept, and the control method and the control system can be widely applied to the communication field.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a device interface control method and system based on an Android system. Background technique [0002] Android (Android) system is a Linux-based open source operating system, mainly used on mobile devices. Such as figure 1 As shown, the Android (Android) system can be divided into five layers from the top layer down: application layer, application framework, system runtime library, hardware abstraction layer and Linux kernel. [0003] The native Android (Android) system is used on mobile devices, and it does not support device interfaces such as serial ports and GPIO (General Purpose Input / Output, general purpose input / output). In order to support these device interfaces, the existing technology will achieve the purpose of support by modifying the source code of the Android (Android) system or using the JNI (JavaNativeInterface, JAVA local call) mechanism. However, modi...

AI Technical Summary

Problems solved by technology

However, the application framework is used to maintain the system's own security and device access rights, so this technology makes the Android system lose its original system security and rights protection.

And the JNI development process is very cumbersome, it may be necessary to write multiple corresponding JNIs in order to complete an application, and these JNIs may not be reusable in other systems, and their reusability is low

[0004] Therefore, there is currently no Android system that is compatible with other device interfaces except the mobile terminal device interface, and can maintain system security and device access rights.

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