Bluesky Downloads & Documentations : Apache Bluesky

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Student Client User Manual

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Summary

Student Client is a terminal of Real Class System. With the support of Class Server and DTU(data transfer unit), student client can join a class and take part in real time communication with the teacher in different network or different place. With the help of student client, we can join the excellent lessons performed by different teachers in different school. Student client supports various versions of Linux.
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Interface

Student client interface as follow image shows is very natty.

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1.Menu bar
+ Menu bar provides all the operations supported by student client system.The start menu includes the basic operations of the system.

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Operation	Description
Settings	Configure the student system
Login System	Login system with your user name and then you can have lessons
Quit	Quit sudent client

The class menu includes "Join Class" and "Exit Class" operations.

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Operation	Description
Join Class	Join a class
Exit Class	Quit the class

The Operations menu includes the communication operations.

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Operation	Description
Start Communication	Ask teacher for focus
Exit Communication	Exit the communication with teacher

Help menu includes an introduction dialog about student client.

2.Toolbar

Toolbar provides some shortcut of system basic functions.

Set system configuration
+ Login system
+ Join the selected class
+ Exit current class
+ Ask for focus to communicate with teacher
+ Exit current communication
+ Quit student client system

3.Teacher's screen display area
+ It is the biggest area of the interface as shown before. The teacher's screen will be presented in this area. In communication mode, the area will display the chat record.

4.Teacher's and student's image area
+ With a PC camera, you can see your image in student's image area, and if the teacher has a PC camera, the teacher's image will display in the area as figure shows.

5.Text communication
+ During the class you can express your opinion by text in this area. You can type the words in the message blank then click Snd button to send them. In this way, you can communicate with the other students as well as the teacher in text. You will see the chat record in the area neighboring the message blank as the image shows.

User Guide ãããã

1.Preparations
+ Before launch student client, there are some preparatory works you have to do. Student client will capture student video and voice by PC camera and microphone. Check all these equipment; make sure that they work well. Finally, check your network configuration and launch the student client system.

2.Student client Network Configuration
+ It's necessary to configure student client first.
+ Click the Settings button on Toolbar or select the Setting option of Start menu. The Network Configuration dialog as follow image shows.

First, configure the Server IP address.
+ Click the Advanced button, then you can modify the other three items. (We suggest keeping the default value.)
+ Server Port: The port of class server which is used to receive the data from student client.
+ User IP: Student client IP address. System gets the IP address automatically. You can also modify it manually.
+ Receive Port: The benchmark port of student client. With this benchmark, student client will determine which ports will used to receive the data form teacher client. Receive Port must be an even and greater than 1024.
+ When you finish the configuration, click OK button to save the settings.

3.Login System
+ After network configuration, the Login button becomes available. Click the Login button or select the Login System option of Start menu. The Login dialog as follow image shows.

Fill in your name and password, then click OK button to login server. The user name can't be null and make sure your user name is a unique one. If there is another user with the same name in class server, you will get an error prompt when you try to login server.

4.Join Class
+ After you login server, click the Join Class button or select Join Class option of Class menu. The Join Class dialog as follow image shows.

Select one class in the class list then click OK button. After you join the class, you will see the dialog as follow image shows.

5.Exit Class
+ Click the Exit Class button or select the Exit Class option of Class menu, then you can see the dialog as follow image shows.

Click Yes button to exit class. After that, you can select other class to join.

6.Interactive Mode
+ When teacher client turn on the Interactive mode, the teacher's screen display area will display the text communication between teacher and student.

Click Clr button to cleanup the display area.

7.Ask for focus
+ There are two methods for students to get focus.
+ 1). In interactive mode, if a student want to communicate to teacher visually, he can click the button or select the Start Communication option of Operations menu. With the teacher's authorization, the student will get the focus.
+ 2). Teacher can specify a focus actively. Students have no initiative right of specifying the focus but they have the right of asking for the focus being removed.
+ Once a student gets the focus, he can communicate with teacher visually as follow image shows.

8.Students View & My View
+ In the interactive mode, when teacher specify a focus, you can click Student View button to see the image of the student who got the focus. Click the My View button to see the image of yourself.

9.Remove the focus
+ There are two methods to remove the focus.
+ 1) Students click the Exit Communication button on Toolbar or select the Exit Communication option of Operations menu. With the teacher's agreement, the system will exit the interactive mode.
+ 2) Teacher can remove the focus directly. There is no need for students to do anything.

10.About Student Client
+ Select the About option of Help menu to check the version number and some information about student client.

11.Quit Student Client
+ If the class is over, you can click the Quit System button or select the Quit System option of Start menu, and then the Student client will be stopped.

Commentary

1. After you execute ./nc_stu command, if there is a segment error, please check your Linux system and make sure the artsd has been opened. Student client depends on the artsd service. If you can't open artsd, consult the system administrator for detail.

2. When configuring the network, fill in the class server IP address and port correctly. More important, the Receive Port must be greater than 1024. You can modify the settings according to the prompt.

3. During the login server phase, if you can't login successful, check your user name first. Maybe you forgot enter your user name or the user name was too long. There may be another student using the same user name. If the problem still exists, check your network configuration, especially the IP address and port of class server.

4. Once in a while the Join Class dialog may close automatically. Then, please click the Join Class button and choose one class again.
+ If there is no class after you open the Join Class dialog, make sure that teacher has created a class and reload the dialog.

5. When you find that you can't get focus, maybe teacher is too busy to notice your requirement or other student has been specified as focus. Please wait a moment and ask for focus later.

6. During the class, if you find that your system freezes up, you can reload your system. The reason may be the teacher exit class by accident.

7. If there is no voice during communication, make sure that your microphone is working. You can test your microphone by other program.
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