Wireless vehicle-specific data management

• US 20060089145A1
• Filed: 10/27/2004
• Published: 04/27/2006
• Est. Priority Date: 10/27/2004
• Status: Abandoned Application

• Current Assignee: Transit Vehicle Technology Incorporated
• Original Assignee: Transit Vehicle Technology Incorporated
• Inventors: Chen, Infon, Chu, Yun-Ping
• Application Number:
  US10/974,320
• Publication Number:
  US 20060089145A1
• Time in Patent Office: Days
• US Class Current: 455/445
• CPC Class Codes: G08G 1/096716 where the received information does not generate an automatic action on the vehicle control
• CPC Class Codes: G08G 1/096741 where the source of the transmitted information selects which information to transmit to each vehicle
• CPC Class Codes: G08G 1/096775 where the origin of the information is a central station
• CPC Class Codes: G08G 1/127 to a central station ; Indicators in a central station
• CPC Class Codes: H04W 4/12 Messaging; Mailboxes; Announcements

Abstract

System and method for providing vehicle-specific data to vehicles is provided. A preferred embodiment comprises downloading vehicle-specific data to mass-transit vehicles when vehicles are within a predetermined area, such as a garage, parking lot, gas station, or the like, via a wireless interface, such as a WiFi communications link. The vehicle-specific information may include route information, advertising information, or the like. In a preferred embodiment, the information is encrypted and compressed for transmission by an application server and decrypted and decompressed upon receipt. The data may also be divided into multiple blocks for transmission and reassembled upon receipt. Data integrity checks may be performed for each block and for the entire message.

Claims

1. A method for providing information to a mass-transit vehicle comprising:

determining whether or not the mass-transit vehicle is within a first area;

retrieving information specific to the mass-transit vehicle;

transmitting vehicle-specific information to the mass-transit vehicle;

upon receiving an acknowledgement that all information has been received accurately by the mass-transit vehicle, transmitting an error-detection message; and

upon receiving an indication that all information has not been received accurately by the mass-transit vehicle, repeating the process.

2. The method of claim 1, wherein the first area is a parking lot or a maintenance area.

3. The method of claim 1, wherein the vehicle-specific information includes route-specific information.

4. The method of claim 1, wherein the vehicle-specific information includes advertising specific to a route.

5. The method of claim 1, wherein the transmitting is performed using WiFi.

6. The method of claim 1, further comprising encrypting the vehicle-specific information.

7. The method of claim 1, further comprising compressing the vehicle-specific information.

8. A method of receiving vehicle-specific information by a mass-transit vehicle, the method comprising:

receiving a polling message when the mass-transit vehicle enters a first area;

transmitting a first message indicating that the mass-transit vehicle is within the first area, the first message identifying the mass-transit vehicle;

receiving one or more messages, each message including vehicle-specific information; and

storing the vehicle-specific information.

9. The method of claim 8, further comprising transmitting at least a portion of the vehicle-specific information to an operator control unit.

10. The method of claim 8, further comprising transmitting at least a portion of the vehicle-specific information to a display.

11. The method of claim 8, wherein the vehicle-specific information includes route information.

12. The method of claim 8, wherein the vehicle-specific information includes advertising specific to the mass-transit vehicle.

13. The method of claim 8, further comprising receiving a last message, the last message including error-detection information for detecting errors in any of the one or more messages.

14. The method of claim 13, further comprising transmitting a second message indicating that no errors were found.

15. The method of claim 13, further comprising transmitting a second message indicating that errors were found.

16. The method of claim 8, wherein the transmitting is performed using WiFi.

17. The method of claim 8, further comprising encrypting the vehicle-specific information.

18. The method of claim 8, further comprising compressing the vehicle-specific information.

19. A method of retrieving data by a mass-transit vehicle, the method comprising:

(a) entering a sleep mode for a first time period;

(b) after expiration of the first time period, entering a low power mode;

(c) determining, while in the low power mode, whether a first message has been received;

(d) if the first message has not been received, re-entering the sleep mode; and

(e) if the first message has been received, performing the steps;

entering a normal operating mode;

receiving vehicle-specific information; and

re-entering the sleep mode.

20. The method of claim 19, wherein the sleep mode is entered upon detecting that emergency power is being used.

21. The method of claim 19, wherein the sleep mode is entered after a first time period after detecting that emergency power is being used.

22. The method of claim 19, wherein the first message includes a mass-transit vehicle identifier.

23. The method of claim 19, wherein steps (a)-(d) are repeated until the first message has been received.

24. The method of claim 19, wherein the first time period is between about one second to about one minute.

25. An apparatus for transmitting information to a mobile control unit, the apparatus comprising:

a transceiver;

an application server communicatively coupled to the transceiver, the application server being configured to store instructions to cause the application server to perform the steps;

determining whether or not the mobile control unit is within a first area;

retrieving information specific to the mobile control unit;

transmitting vehicle-specific information to the mobile control unit;

upon receiving an acknowledgement that all information has been received accurately by the mobile control unit, transmitting an error-detection message; and

upon receiving an indication that all information has not been received accurately by the mobile control unit, repeating the process.

26. The apparatus of claim 25, wherein the first area is a parking lot or a maintenance area.

27. The apparatus of claim 25, wherein the vehicle-specific information includes route-specific information.

28. The apparatus of claim 25, wherein the vehicle-specific information includes advertising specific to a route.

29. The apparatus of claim 25, wherein the transmitting is performed using WiFi.

30. The apparatus of claim 25, wherein the application server is further configured for encrypting the vehicle-specific information.

31. The apparatus of claim 25, wherein the application server is further configured for compressing the vehicle-specific information.

32. An apparatus for receiving vehicle-specific information by a mass-transit vehicle, the apparatus comprising:

a transceiver;

a control unit communicatively coupled to the transceiver;

memory communicatively coupled to the control unit, the memory being configured to store instructions to cause the control unit to perform the steps;

receiving a polling message when the mass-transit vehicle enters a first area;

transmitting a first message indicating that the mass-transit vehicle is within the first area, the first message identifying the mass-transit vehicle;

receiving one or more messages, each message including vehicle-specific information; and

storing the vehicle-specific information.

33. The apparatus of claim 32, wherein the memory is further configured to store instructions to cause the control unit to perform the step of transmitting at least a portion of the vehicle-specific information to an operator control unit.

34. The apparatus of claim 32, wherein the memory is further configured to store instructions to cause the control unit to perform the step of transmitting at least a portion of the vehicle-specific information to a display.

35. The apparatus of claim 32, wherein the vehicle-specific information includes route information.

36. The apparatus of claim 32, wherein the vehicle-specific information includes advertising specific to the mass-transit vehicle.

37. The apparatus of claim 32, wherein the memory is further configured to store instructions to cause the control unit to perform the step of receiving a last message, the last message including error-detection information for detecting errors in any of the one or more messages.

38. The apparatus of claim 37, wherein the memory is further configured to store instructions to cause the control unit to perform the step of transmitting a second message indicating that no errors were found.

39. The apparatus of claim 37, wherein the memory is further configured to store instructions to cause the control unit to perform the step of transmitting a second message indicating that errors were found.

40. The apparatus of claim 32, wherein the transmitting is performed using WiFi.

41. The apparatus of claim 32, wherein the memory is further configured to store instructions to cause the control unit to perform the step of encrypting the vehicle-specific information.

42. The apparatus of claim 32, wherein the memory is further configured to store instructions to cause the control unit to perform the step of compressing the vehicle-specific information.

43. An apparatus for receiving vehicle-specific information by a mass-transit vehicle, the apparatus comprising:

a transceiver;

a control unit communicatively coupled to the transceiver;

memory communicatively coupled to the control unit, the memory being configured to store instructions to cause the control unit to perform the steps;

(a) entering a sleep mode for a first time period;

(b) after expiration of the first time period, entering a low power mode;

(c) determining, while in the low power mode, whether a first message has been received;

(d) if the first message has not been received, re-entering the sleep mode; and

(e) if the first message has been received, performing the steps;

entering a normal operating mode;

receiving vehicle-specific information; and

re-entering the sleep mode.

44. The apparatus of claim 43, wherein the sleep mode is entered upon detecting that emergency power is being used.

45. The apparatus of claim 43, wherein the sleep mode is entered after a first time period after detecting that emergency power is being used.

46. The apparatus of claim 43, wherein the first message includes a mass-transit vehicle identifier.

47. The apparatus of claim 43, wherein the memory is further configured to store instructions to cause the control unit to repeat steps (a)-(d) until the first message has been received.

48. The apparatus of claim 43, wherein the first time period is between about one second to about one minute.