System integration of WAP and SMS for home network system

1. System integration of WAP and SMS for home network system • Editor : Chi-Hsiang Wu, Rong-Hong Jan • School : the National Chiao Tung University • Source : Computer Network • Reporter : Yao • Date : Dec. 14th, 2005

2. Abstract & Motivation • A home network system (HNS) architecture integrated with wireless application protocol (WAP) and short message service (SMS) to support the connectivity between home and Internet/global system for mobile communication (GSM) networks. • The main object of the integrated system is to remotely monitor and control the devices in the HNS via laptop computer or a GSM mobile terminal.

3. System Architecture (1)

4. System Architecture (2) • An HNS gateway • Appliances subsystem • Security subsystem • Messaging subsystem

5. Communication (1)

6. Communication (2) • WAP protocol communicate with GSM network • HTTP protocol communicate with Internet • SMS protocol communicate with GSM network

7. Notification (1)

8. Notification (2) • HNS alert message can be sent to remote mobile phone via SMS protocol

9. Manager-Agent model

10. HNS management protocol • Managers can configure, diagnose, and maintain home devices which are connected to HNS via the HNS management protocol • The management protocol employs the concept of a client-server model, which in turn, forms the basis for manager-agent model • An agent entity resides in each managed device • The manager resides in the HNS gateway

11. Command format for management services (1)

12. Command format for management services (2) • The service field specifies HS_GET_DATA or HS_SET_DATA • The objects field is an object identifier • Data is the value of the object

13. HNS gateway (1)

14. HNS gateway (2) • The HNS gateway provides the interlinking of the controlled home network and the Internet/GSM network. • The HNS gateway performs the protocol translations between the controlled home network protocol and the HTTP/WAP/SMS protocol.

15. Protocol stack (1)

16. Protocol stack (2) • The left-hand plane is the HNS termination protocol stack consists of three layers : --- Physical layer (PHY) --- HNS protocol stack --- Management protocol • The right-hand plane is SMS, HTTP and WAP protocol stack.

17. HNS implementation (1) • The HNS gateway : --- A pentium-level desktop PC with Linux operating system • Web server • WAP gateway • Remote access service server • Short message driver • HNS configuration tool

18. HNS configuration tool (1)

19. HNS configuration tool (2) • Functions : --- List --- Add --- Delete --- Refresh --- Change --- Preference

20. HNS status (1)

21. HNS status (2) • Data consistency problem : • New appliances in the configuration tool : ----- HNS’s Wireless Makeup Language (WML) and HTML pages ----- Common Gateway Interface (CGI)

22. Implementation of home network subsystem • Home appliance subsystem --- Air-condition --- Light system • Security subsystem --- Charge-coupled device cameras connected to a PC as an surveillance system • Messaging subsystem --- E-mail system (POP3 or IMAP4 protocol) --- mail servers address, user IDs, passwords, and GSM phone numbers must be given to HNS gateway in advance

23. The GUI for appliance objects

24. Real-time images

25. Architecture for E-mail services

26. Conclusion • An HNS architecture consists of three subsystems provides remote monitoring and control of home appliances that are managed by the home gateway • The home gateway has the ability to actively notify home users in remote locations • The home gateway can push the altering message to home users

27. Future research • Extend the HNS with real-time processing capabilities • Develop authentication and security mechanisms for HNS • Study distributed component object model (DCOM), common object request broker architecture (CORBA), or Java remote method invocation (Java RMI) for the remote invocation approach of HNS • Implement more home network service and applications

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