Secure control of wireless sensor network via the internet

• US 7,817,994 B2
• Filed: 09/20/2004
• Issued: 10/19/2010
• Est. Priority Date: 09/20/2004
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Schaefer, Jochen, Funk, Karsten, Ravula, Sharmila
• Primary Examiner(s): RAMPURIA, SHARAD K
• Application Number:
  US10/946,405
• Publication Number:
  US 20060062201A1
• Time in Patent Office: 2,220 Days
• Field of Search: 455/41.2, 455418-420, 455410-411, 455423-425, 340/539.22, 340/825.69, 340/5.64, 370/352, 370/401
• US Class Current: 455/419
• CPC Class Codes: G01D 21/00 Measuring or testing not otherwise provided for
• CPC Class Codes: G08C 2201/42 Transmitting or receiving remote control signals via a network
• CPC Class Codes: H04L 41/082 the condition being updates or upgrades of network functionality
• CPC Class Codes: H04L 41/0879 Manual configuration through operator
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/083 using passwords cryptographic mechanisms or cryptographic arrangements for entity authentication using a predetermined code H04L9/3226
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04W 12/03 Protecting confidentiality, e.g. by encryption
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A method and a system for controlling a wireless sensor network from a user interface coupled to the Internet are provided. A user accesses an Internet-based portal from the user interface and establishes a secure broadband Internet connection between a remote control module coupled to the wireless sensor network and the portal. The connection is established by manually triggering a connection between the remote control module and the portal from the remote control module.

Claims

1. A system comprising:

a wireless sensor network;

a remote control module directly connected to the wireless sensor network and adapted to exchange signals with the wireless sensor network via a base station, the remote control module including a broadband interface to the Internet;

a portal coupled to the Internet, the portal including an application for configuring and initializing the wireless sensor network; and

a user interface coupled to the Internet and adapted to communicate with the portal via the Internet;

wherein the user interface and the portal are remotely located from the remote control module, from the wireless sensor network, and from each other;

wherein a secure connection between the remote control module and the portal via the Internet is initiated from the remote control module, thereby enabling control of the wireless sensor network from the user interface via the portal;

wherein communication between the remote control network and the portal is encrypted; and

wherein the remote control unit is configured to deny any attempted connection via the Internet to the remote control module.

2. The system of claim 1, wherein the remote control module includes a user interface for manually triggering the secure connection to the portal.

3. The system of claim 1, wherein the wireless sensor includes at least one sensor node, and the remote control module is adapted to identify the at least one sensor node in communication with the base station and to store the identified sensor node in a table.

4. The system of claim 1, wherein prior to the initiation of a connection between the remote control module and the portal, the portal notifies the remote control module of a request to establish a connection via a telephone call.

5. The system of claim 4, wherein the remote control module establishes a broadband Internet connection with the portal upon receiving and rejecting the telephone call.

6. The system of claim 5, wherein the remote control module uses a caller identification (ID) of the portal derived from the telephone call to authenticate the portal.

7. The system of claim 1, wherein once a secure connection is established, the portal transmits configuration information to the remote control module.

8. The system of claim 7, wherein after the configuration information is downloaded, the remote control module sends a notification to the portal indicating whether or not the configuration was successfully performed.

9. A method for controlling a wireless sensor network coupled to a local remote control module from an Internet-based user interface, the method comprising:

accessing an Internet-based portal from the user interface;

establishing a secure Internet connection between the remote control module and the portal, the establishment of the secure connection being initiated via the Internet by the remote control module; and

denying, by the remote control module, any attempted connection via the Internet to the remote control module not initiated by the remote control module;

wherein;

the user interface and the portal are remotely located from the remote control module, from the wireless sensor network, and from each other;

the accessing the Internet-based portal from the user interface is via the Internet;

the communication between the remote control module and the portal is encrypted;

an Internet connection between the remote control module and the portal can be established only by the remote control module and only in one of the following cases;

a) by manually pressing a button at the remote control module;

b) during scheduled status reports initiated by the remote control module; and

c) when an alert or alarm is reported by the remote control module to the portal.

10. A method for controlling a wireless sensor network coupled to a local remote control module from an Internet-based user interface, the method comprising:

accessing an Internet-based portal from the user interface;

establishing a secure Internet connection between the remote control module and the portal, the establishment of the secure connection being initiated via the Internet by the remote control module; and

denying, by the remote control module, any attempted connection via the Internet to the remote control module not initiated by the remote control module;

wherein;

the user interface and the portal are remotely located from the remote control module, from the wireless sensor network, and from each other; and

the connection can be established only in one of the following cases;

a) by manually pressing a button at the remote control module;

b) during scheduled status reports initiated by the remote control module;

c) when an alert or alarm is reported by the remote control module to the portal; and

d) in response to a request from the portal via a telephone network.

11. The method of claim 10, wherein:

the remote control module is adapted to;

exchange signals with the wireless sensor network via a base station;

identify at least one sensor node of the wireless sensor network that is in communication with the base station; and

store the identified at least one sensor node in a table; and

a network topology is stored in the base station and within at least one of the sensor nodes.

12. The method of claim 10, further comprising:

receiving user input control instructions via the user interface;

transmitting the instructions from the user interface to the accessed portal, and from the portal to the remote control module via the secure Internet connection; and

controlling, by the remote control module, the wireless sensor network using the instructions.

13. The method of claim 10, wherein:

the accessing the Internet-based portal from the user interface is via the Internet; and

the communication between the remote control module and the portal is encrypted.

14. The method of claim 13, wherein the establishing step includes manually triggering a connection between the remote control module and the portal from the remote control module.

15. The method of claim 14, wherein the manual triggering is performed by pressing an activation button on the remote control module.

16. The method of claim 13, wherein the establishing step includes sending a notification from the portal to the remote control module indicating a request to establish a connection.

17. The method of claim 16, wherein the notification includes:

placing a telephone call to the remote control module; and

recording a caller identification (ID) from the call at the remote control module.

18. The method of claim 13, further comprising:

guiding set up of the wireless sensor network from the portal; and

transmitting configuration data from the portal to the remote control module.

19. The method of claim 13, wherein the remote control interface includes a broadband interface, and the connection between the remote control module and the portal is made over the Internet.

20. The method of claim 13, wherein the remote control interface includes a modem, and the connection between the remote control module and the portal is made over the Public Service Telephone Network (PSTN).

21. The method of claim 13, wherein once a secure connection is established, configuration information is downloaded from the portal to the local remote control module.

22. The method of claim 21, wherein after the configuration information is downloaded, the remote control module sends a notification to the portal indicating whether or not the configuration was successfully performed.

23. The method of claim 10, wherein an Internet connection between the remote control module and the portal can only be established by the remote control module.

24. The method of claim 23, wherein the remote control module is pre-programmed with an internet protocol address of the portal.

25. The method of claim 13, further comprising:

transmitting, via the Internet, configuration data, input via the user interface, to the portal;

transmitting, from the portal to the remote control module and via the Internet, the configuration data received by the portal; and

configuring the wireless sensor network, by the remote control module and in accordance with the configuration data received by the remote control module.

26. The method of claim 25, further comprising:

setting the remote control module such that configuration data is transmissible from the portal to the remote control module only in a connection between the remote control module and the portal that is initiated by the remote control module.

27. The method of claim 26, wherein the user-input configuration data is received by the portal when a connection is not established between the remote control module and the portal, the method further comprising:

storing the user-input configuration data at the portal at least until a connection initiated by the remote control module is established during which connection the user-input configuration data is transmitted by the portal to the remote control module.

28. The method of claim 26, wherein the user-input configuration data is received by the portal when a connection is not established between the remote control module and the portal, the method further comprising:

responsive to receipt of the user-input configuration information, the portal initiating a first connection with the remote control module, in which the portal requests a second connection in which to transmit the user-input configuration data;

responsive to receipt of the request in the first connection, the remote control unit initiating the second connection with the portal; and

in the second connection, the portal transmitting the user-input configuration data to the remote control unit.

29. The method of claim 25, wherein the portal stores a user-interface program via interaction with which the configuration data is inputtable by a user, the user-interface program providing information regarding sensors of the sensor network and being accessible from the user interface via the Internet.

30. The method of claim 29, wherein information regarding the sensors is transmitted from the remote control unit to the portal and is subsequently viewable at the user interface via interaction, via the Internet, with the user-interface program of the portal.

31. The method of claim 10, further comprising:

sending a notification from the portal to the remote control module indicating a request to establish the secure connection, the establishment of the secure connection being performed responsive to the request.

32. The method of claim 31, wherein the remote control interface includes a modem, and the notification is sent from the portal to the remote control module over the Public Service Telephone Network (PSTN).

33. A system comprising:

a wireless sensor network;

a remote control module adapted to exchange signals with the wireless sensor network via a base station, the remote control module including a broadband interface to the Internet;

a portal coupled to the Internet, the portal including an application for configuring and initializing the wireless sensor network; and

a user interface coupled to the Internet and adapted to communicate with the portal;

wherein;

the user interface and the portal are remotely located from the remote control module, from the wireless sensor network, and from each other;

a secure connection between the remote control module and the portal via the Internet is initiated from the remote control module, thereby enabling control of the wireless sensor network from the user interface via the portal; and

the remote control unit is configured to deny any attempted connection via the Internet to the remote control module.