CN102830968A - Communication method of cloud operating system - Google Patents

Abstract

The invention provides a communication method of a cloud operating system. With development of science and technology, cloud computing starts being widely applicable to many fields. With the development of cloud computing, the requirements of cloud computing terminals for operating system performance and diversity and user experience are higher. Complex and varying environments and devices are involved in the field of cloud terminals at present, and the various existing terminal operating systems are imperfect in communication operation and generally only support communication manners most applied daily, such as USB (universal serial bus) interface communication and Bluetooth communication. By the method implementing serial communication on cloud terminal operating systems, application of the terminal operating systems in the traditional industrial environment and the traditional communication means is freed.

Description

A kind of means of communication of cloud operating system

Technical field

The present invention relates to the cloud computing technical field, specifically a kind of means of communication of cloud operating system.

Background technology

The cloud computing terminal operating system is at the early-stage and disperse state.Various technology and product are used and are immature; Particularly in the environment of cloud computing terminal device high complexityization, for the realization of the various communication modes of terminal device requirement has just been arranged, because cloud operating system is used on the intelligent artifact of daily life more now; So in the realization of the communication modes of traditional device with regard to defectiveness; Through realizing traditional serial communication mode, make the communication of the support various device that cloud computing operating system becomes reconciled, so that adapt to the various device environment.

Summary of the invention

The objective of the invention is under existing terminal operating system, provides a kind of means of communication of practicality of reality for developing commercial cloud terminal device particularly to the cloud terminal operating system in the complicated business working environment.

The objective of the invention is to realize that by following mode step is following:

1) at first with c language design JNI interface, through the opening and closing of JNI interface completion serial ports, the standard of JNI is Java_packagename_classname_methodname;

2) then create file jni/Android.mk; This file is the Makefile of local C code,

3) we need generate library file under the linux environment then, generate filename.so by name, open to this bottom, and the program of closing serial ports just designs and is over;

4) in order to realize system-level serial communication, we also must realize interface on cloud operating system, just only in this way on cloud operating system design of program can call serial communication;

Realize the interface of upper strata serial communication at last, concrete implementation method: at first the filename.so library file that generates is copied under the src catalogue, then write the serialport.java file, key code is following:

public?class?SerialPort?{?　　……?　　/*open?the?serial?port*/?　　mFd?=?open(device.getAbsolutePath(),?baudrate);?　　//?JNI?　　private?native?static?FileDescriptor?open(String?path,?int?baudrate);?　　public?native?void?close();?　　static?{?　　System.loadLibrary("serial_port");

We just can realize serial communication through calling this type of SerialPort in the upper procedure design like this.

The invention has the beneficial effects as follows: along with development of science and technology; Cloud computing begins to be used widely in a lot of fields; Development along with cloud computing; Terminal device to cloud computing is had higher requirement on performance, variation and the user experience of operating system, because present field, cloud terminal can relate to environment and complex equipments is changeable, what still current various terminal operating systems were done in communication work is not very perfect; Many communication modes have often just been supported to use in the daily life, for example: the communication of USB mouth, bluetooth communication etc.This patent is through providing a kind of method that on the cloud terminal operating system, realizes serial communication, makes terminal operating system on Traditional industrial environment and traditional communication modes, obtain liberation.

Description of drawings

Fig. 1 is the communication flow synoptic diagram.

Embodiment

Explanation at length below with reference to Figure of description method of the present invention being done.

Step is following:

1) at first with c language design JNI interface, through the opening and closing of JNI interface completion serial ports, the standard of JNI is Java_packagename_classname_methodname;

2) then create file jni/Android.mk; This file is the Makefile of local C code,

3) we need generate library file under the linux environment then, generate filename.so by name, open to this bottom, and the program of closing serial ports just designs and is over;

4) in order to realize system-level serial communication, we also must realize interface on cloud operating system, just only in this way on cloud operating system design of program can call serial communication;

Realize the interface of upper strata serial communication at last, concrete implementation method: at first the filename.so library file that generates is copied under the src catalogue, then write the serialport.java file, key code is following:

public?class?SerialPort?{?　　……?　　/*open?the?serial?port*/?　　mFd?=?open(device.getAbsolutePath(),?baudrate);?　　//?JNI?　　private?native?static?FileDescriptor?open(String?path,?int?baudrate);?　　public?native?void?close();?　　static?{?　　System.loadLibrary("serial_port");

We just can realize serial communication through calling this type of SerialPort in the upper procedure design like this.

Communication flow is as shown in Figure 1:

A, that SerialPort.java class that at first will generate import in your project;

B, then oneself the class in call the method among the SerialPort.java;

C, at last through calling the business that SerialPort.java realizes oneself.

Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.

Claims (1)

1. the means of communication of a cloud operating system is characterized in that step is following:

1) at first with c language design JNI interface, through the opening and closing of JNI interface completion serial ports, the standard of JNI is Java_packagename_classname_methodname;

2) then create file jni/Android.mk; This file is the Makefile of local C code,

3) we need generate library file under the linux environment then, generate filename.so by name, open to this bottom, and the program of closing serial ports just designs and is over;

4) in order to realize system-level serial communication, we also must realize interface on cloud operating system, just only in this way on cloud operating system design of program can call serial communication;

Realize the interface of upper strata serial communication at last, concrete implementation method: at first the filename.so library file that generates is copied under the src catalogue, then write the serialport.java file, key code is following:

public?class?SerialPort?{?　　……?　　/*open?the?serial?port*/?　　mFd?=?open(device.getAbsolutePath(),?baudrate);?　　//?JNI?　　private?native?static?FileDescriptor?open(String?path,?int?baudrate);?　　public?native?void?close();?　　static?{?　　System.loadLibrary("serial_port");

We just can realize serial communication through calling this type of SerialPort in the upper procedure design like this.

Images