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Specification and Design of Video Chat Controller

Specification and Design of Video Chat Controller. Project Presentation Ye Tian Chunhua Li. EECS 488 - Embedded Systems Professor: Dr.Papachristou. Content. Introduction System Functional Description System Specification Components Specification Feasibility Study

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Specification and Design of Video Chat Controller

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  1. Specification and Design of Video Chat Controller Project Presentation Ye Tian Chunhua Li EECS 488 - Embedded Systems Professor: Dr.Papachristou

  2. Content • Introduction • System Functional Description • System Specification • Components Specification • Feasibility Study • Controller Analysis • Simulation and Testing EECS 488 - Embedded Systems Professor: Dr.Papachristou

  3. System Functional Description • Basic phone functionalities (Mode 1) Like any other phones, it can transfer voice messages over standard telephone lines. • Answer machine functionalities (Mode 2) Not Like other answer machines, it can save both voice messages and video messages in memory. The message stored in the memory can be traced. • Video transmission (Mode 3) Continuous high-speed transmission of entire monitored scenes. EECS 488 - Embedded Systems Professor: Dr.Papachristou

  4. System specification EECS 488 - Embedded Systems Professor: Dr.Papachristou

  5. Components Specification • Memory Unit • Compact Flash 64MB Memory Card (Crucial) • Audio Process Unit • Microphone  AD  Audio Compression • Decompression  DA  Speaker • SONY - Omni directional Microphone • Motorola DSP’s 24-bit DSP56321T • Shihpei speaker EECS 488 - Embedded Systems Professor: Dr.Papachristou

  6. Components SpecificationCont’ • Video Process Unit • Camera  Image Compression • Decompression  LCD Display • V-1245 1/4" color board camera (CCD) • MC149570 Multi-Standard Video Processor • LCD: Model # ED10020TRU (Emerging Display Technologies). • Network Internet Unit • APTIVA 56K MODEM ISA (IBM) • Control Unit EECS 488 - Embedded Systems Professor: Dr.Papachristou

  7. Feasibility Study

  8. Components Specification- Control Units • Software design Using UML • Socket programming using Java • Hardware level programming using C • Memory Management • Software Simulation and Testing using Java & C • PC based simulation • Peer to peer • GUI program • Connect C with Java by JNI EECS 488 - Embedded Systems Professor: Dr.Papachristou

  9. Components Specification- Control Units UML Design • Use case diagram EECS 488 - Embedded Systems Professor: Dr.Papachristou

  10. Components Specification- Control Units UML Design Cont’ • Sequence Diagram-Receiving EECS 488 - Embedded Systems Professor: Dr.Papachristou

  11. Components Specification- Control Units UML Design Cont’ • Sequence Diagram-Answer machine (1) EECS 488 - Embedded Systems Professor: Dr.Papachristou

  12. Components Specification- Control Units UML Design Cont’ • Sequence Diagram-Answer machine (2) EECS 488 - Embedded Systems Professor: Dr.Papachristou

  13. Components Specification- Control Units UML Design Cont’ • Sequence Diagram-Recording EECS 488 - Embedded Systems Professor: Dr.Papachristou

  14. Components Specification- Control Units UML Design Cont’ • Sequence Diagram-Buttons EECS 488 - Embedded Systems Professor: Dr.Papachristou

  15. Components Specification- Control Units UML Design Cont’ • Sequence Diagram-Sending/Talking EECS 488 - Embedded Systems Professor: Dr.Papachristou

  16. Components Specification- Control Units UML Design Cont’ • Class Diagram-Receiving EECS 488 - Embedded Systems Professor: Dr.Papachristou

  17. Components Specification- Control Units UML Design Cont’ • Class Diagram-Answermachine EECS 488 - Embedded Systems Professor: Dr.Papachristou

  18. Components Specification- Control Units UML Design Cont’ • Class Diagram-Announcement EECS 488 - Embedded Systems Professor: Dr.Papachristou

  19. Components Specification- Control Units UML Design Cont’ • Class Diagram-Recording EECS 488 - Embedded Systems Professor: Dr.Papachristou

  20. Components Specification- Control Units UML Design Cont’ • Class Diagram-Buttons EECS 488 - Embedded Systems Professor: Dr.Papachristou

  21. Components Specification- Control Units UML Design Cont’ • Class Diagram-Sending/Talking EECS 488 - Embedded Systems Professor: Dr.Papachristou

  22. Components Specification- Control Units Design Cont’ • System Analysis Unit 1 Unit 2 Unit n Control Unit Unit 3 … Unit 4 EECS 488 - Embedded Systems Professor: Dr.Papachristou

  23. PC Based Simulation and Testing • Port deification • port 1255 :phone call (Mode 1) • port 1256: answer machine (Mode 2) • port 1257: video transmission (Mode 3) EECS 488 - Embedded Systems Professor: Dr.Papachristou

  24. PC Based Simulation and Testing • Java Interface-Control Panel   EECS 488 - Embedded Systems Professor: Dr.Papachristou

  25. PC Based Simulation and Testing • Peer to peer • both can be client and server • Socket Programming • audio message transmission • video message transmission • command message transmission • R/W memory • memory management EECS 488 - Embedded Systems Professor: Dr.Papachristou

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