Method and apparatus for communicating with an object and module used thereby

• US 6,198,919 B1
• Filed: 12/01/1997
• Issued: 03/06/2001
• Est. Priority Date: 05/30/1995
• Status: Expired due to Fees

• Current Assignee: Naamloze Vennootschap Acunia
• Original Assignee: Smartmove Incorporated
• Inventors: Buytaert, Steven, Buntinx, Luc, Marc, Maes, Orens, Guy
• Primary Examiner(s): Blum, Theodore M.
• Application Number:
  US08/952,663
• Time in Patent Office: 1,191 Days
• Field of Search: 342/457, 455/426, 455/425, 455/456
• US Class Current: 455/426.1
• CPC Class Codes: B60R 2325/205 Mobile phones
• CPC Class Codes: B60R 25/04 operating on the propulsion system, e.g. engine or drive motor
• CPC Class Codes: B60R 25/1025 preventing jamming or interference of said signal
• CPC Class Codes: B60R 25/33 of global position, e.g. by providing GPS coordinates
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: G01S 5/14 Determining absolute distances from a plurality of spaced points of known location
• CPC Class Codes: G07B 15/063 using wireless information transmission between the vehicle and a fixed station identification of vehicles G08G
• CPC Class Codes: H04K 2203/16 for telephony
• CPC Class Codes: H04K 2203/22 for communication related to vehicles
• CPC Class Codes: H04K 3/25 based on characteristics of target signal or of transmission as countermeasure against surveillance H04K3/827, e.g. using direct sequence spread spectrum or fast frequency hopping spread spectrum techniques H04B1/69

Abstract

A method for communicating with an object, for example a vehicle, using a wide area paging network and a cellular mobile communication network that includes the steps of coupling a module with at least a transmitter and a receiver to the object and using the module for communicating with in combination at least three communication networks, the first one being the wide area paging network, the second one being the cellular mobile communication network and the third one being a local network using a spread spectrum modulation method.

Claims

1. A method for communicating with an object, comprising the steps of coupling a module with at least a transmitter and a receiver to the object, said module being one of a plurality of modules arranged to communicate with at least three communications networks, a first network being a wide area paging network with which the module selectively communicates, a second network being a cellular mobile communication network with which the module selectively communicates and a third network being a local network which uses a local beacon to communicate with all modules of said plurality of modules that pass nearby using a spread spectrum modulation method.

2. The method according to claim 1, further comprising the steps of sending a signal over one of the three networks to the module and automatically transmitting a reply signal back over one of the three networks.

3. The method according to claim 2, further comprising the steps of sending a signal over the paging network to the module and causing the module to automatically transmit a reply signal back over the cellular mobile communications network the cellular mobile communication network being switched off during stand-by operation to guarantee privacy of the vehicle during the stand-by operation.

4. The method according to claim 2, further comprising the steps of causing the module to transmit back the reply signal and using the reply signal for identification of the object.

5. The method according to claim 1, wherein the communication paging network is the European Radio Message System (ERMES).

6. The method according to claim 1, wherein the cellular mobile communications network is the Global System for Mobile (GSM) communications network.

7. A method according to claim 1, wherein said object is a vehicle, and further comprising the steps of using the wide area paging network for large volume communications and using the cellular mobile communications network for bidirectional data communication towards and from the vehicle.

8. The method according to claim 1, wherein the third network is a Code Division Multiple Access (CDMA) network.

9. A method according to claim 1, further comprising the step of using a third network which comprises a receiver used to receive data from a nearby said local beacon and a transmitter used to send data to a nearby receiver, whereby spreading codes of transmitters of several modules are different to enable a receiving beacon to recognize and differentiate data coming from each receiver that is a member of the population of receivers in a vicinity of the beacon.

10. The method according to claim 1, wherein the communication is used for the localization of a module.

11. The method according to claim 10, wherein information used to correlate towards a localization of a module includes:

timing information inherent to a cellular mobile communications network protocol which is available to the module and which is sent back to a service center, the timing information being correlated towards a distance from network base stations; and

field strength and identity of a paging network base station recorded at a moment where the timing information is extracted out of the mobile communications network, the strength being correlated towards a distance from the paging network base station in a vicinity of the module.

12. The method according to claim 1, wherein the signals from or to at least one of the communication networks are coded.

13. The method according to claim 1, wherein the signals from or to at least one of the communication networks is cryptographically transformed.

14. A method according to claim 1, wherein interfaces between the module and said networks are controlled by a control module.

15. The method according to claim 14, wherein said object is a vehicle, and further comprising the step of using a control module which comprises an interface with the vehicle.

16. A method according to claim 15, further comprising the step of using a control module comprising an interface which uses a cryptographic transformation for both authentication and data security in communication with the electrical system of the vehicle.

17. A method according to claim 1, wherein the data from or to at least one of the communication networks are digitally signed for authorization.

18. The method according to claim 1, further comprising the step of using a public key and a private key to make a cryptographic transformation of the signal transmitted over the paging network and for decrypting the signal received over the cellular mobile communications network.

19. The method according to claim 1, further comprising the step of downloading software by means of a receiving interface in said module.

20. The method according to claim 5, wherein the cellular mobile communications network is the Global System for Mobile (GSM) communications network.

21. An apparatus for communicating with an object comprising:

a module mounted on an object to be communicated with, said module including;

an interface with a paging network;

an interface with a cellular mobile communications network; and

an interface with a third local network using a spread spectrum modulation method.

22. The apparatus according to claim 21, wherein the interface with the third local network is an interface with a network using the Code Division Multiple Access (CDMA) method.

23. The apparatus according to claim 22, wherein the interface with the third network comprises a CDMA transmitter interface and a CDMA receiver interface.

24. The apparatus according to claim 21, further comprising a control module for controlling said interfaces.