Method and system for determining deviation of dynamic location

• US 8,217,771 B2
• Filed: 07/20/2009
• Issued: 07/10/2012
• Est. Priority Date: 04/09/2009
• Status: Active Grant

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Chen, Pin-Yung, Shih, Ya-Wen
• Primary Examiner(s): Pham, Toan N
• Application Number:
  US12/505,625
• Publication Number:
  US 20100259370A1
• Time in Patent Office: 1,086 Days
• Field of Search: 340/425.5, 340/539.13, 340/539.1, 340/539.15, 340/539.23, 701/400, 701/408, 701/1, 701/23, 701/24, 342/357.34, 342/357.25
• US Class Current: 340/425.5
• CPC Class Codes: G01C 21/3438 Rendez-vous, i.e. searching a destination where several users can meet, and the routes to this destination for these users; Ride sharing, i.e. searching a route such that at least two users can share a vehicle for at least part of the route
• CPC Class Codes: G01C 21/362 received from an external device or application, e.g. PDA, mobile phone or calendar application

Abstract

A method and a system of determining the deviation of dynamic position are provided. The determining method includes the follow steps. First, a server receives a plurality of first position data from a first mobile device. Next, the server receives a plurality of second position data from a second mobile device. Then, the server transmits the first position data to the second mobile device. Thereon, the server transmits the second position data to the first mobile device. Later, the server determines whether the first mobile device and the second mobile device deviate from each other according to the first position data and the second position data.

Claims

1. A method for determining the dynamic location deviation, the method comprising:

a server receiving a plurality of first location data of a first mobile device;

the server receiving a plurality of second location data of a second mobile device;

the server transmitting the first location data to the second mobile device;

the server transmitting the second location data to the first mobile device; and

determining if the first mobile device and the second mobile device deviate from each other according to the first location data and the second location data.

2. The method according to claim 1 further comprising:

calculating each of the first location data according to a plurality of signals of a positioning device; and

calculating each of the second location data according to the signals of the positioning device.

3. The method according to claim 2, wherein the positioning devices are global positioning system (GPS) satellites or wireless communication base stations.

4. The method according to claim 1 further comprising:

providing a lead device option and a following device option, for choosing the first mobile device and the second mobile device as a lead device or a following device;

the first mobile device logging in the server;

the first mobile device transmitting a first selection to the server, the first selection being that the first mobile device is chosen as the lead device or the following device;

the first mobile device transmitting a first identification datum to the server;

the second mobile device logging in the server;

the second mobile device transmitting a second selection to the server, the second selection being that the second mobile device is chosen to be the lead device or the following device;

the second mobile device transmitting a second identification datum to the server; and

storing the first identification datum, the second identification datum, the first selection and the second selection in the server.

5. The method according to claim 4, wherein the first identification datum and the second identification datum comprise license plate number, name of person, identification name, mobile phone number, identification number, group name or communication number of wireless communication module.

6. The method according to claim 4 further comprising following steps before the server receives the first location data:

the first mobile device sending connection requests to the server;

the first mobile device transmitting a first identity datum to the server;

determining if the first identity datum is the same as the first identification datum;

establishing the connection between the first mobile device and the server when the first identity datum is the same as the first identification datum;

wherein the method further comprises following steps before the server receives the second location data;

the second mobile device sending connection requests to the server;

the second mobile device transmitting a second identity datum to the server;

determining if the second identity datum is the same as the second identification datum;

establishing the connection between the second mobile device and the server when the second identity datum is the same as the second identification datum.

7. The method according to claim 4, wherein in the selection step, the first selection is that the first mobile device is chosen to be the lead device, and the second mobile device is chosen to be the following device, and the determining method further comprises:

transmitting a deviation warning signal to the second mobile device when the first mobile device and the second mobile device deviate from each other.

8. The method according to claim 4, wherein in the selection step, the first selection is that the first mobile device is chosen as the lead device, and the second selection is that the second mobile device is chosen to be the following device, and the step of determining deviation further comprises:

calculating a rejoining route between the first mobile device and the second mobile device according to the latest first location data and second location data.

9. The method according to claim 4, wherein in the selection step, the first selection is that the first mobile device is chosen to be the lead device, and the second selection is that the second mobile device is chosen to be the following device, and the step of determining deviation comprises:

setting the latest first location data to be a destination;

setting the latest second location data to be an origin; and

the second mobile device calculating a rejoining route between the origin and the destination.

10. The method according to claim 4, wherein in the selection step, the first selection is that the first mobile device is chosen to be the lead device, the second selection is that the second mobile device is chosen to be the following device, the server is further used for receiving a plurality of first speed values of the first mobile device and a plurality of second speed values of the second mobile device, the server further transmits the received first speed values to the second mobile device and transmits the received second speed values to the first mobile device, and the step of determining deviation further comprises:

orderly calculating a plurality of second deviations between N successive received first location data and second location data, wherein N is an integer not less than 2;

determining if the second deviations are increasing gradually;

determining if the second speed values are greater than a predetermined value; and

determining that the first mobile device and the second mobile device deviate from each other when the second deviations are increasing gradually and the second speed values are greater than the predetermined speed value.

11. The method according to claim 1 further comprising:

the first mobile device transmitting a first identification datum to the server;

the second mobile device transmitting a second identification datum to the server;

the server transmitting the received first identification datum to the second mobile device; and

the server transmitting the received second identification datum to the first mobile device.

12. The method according to claim 1 further comprising:

transmitting a connection confirmation password; and

storing the connection confirmation password in the server.

13. The method according to claim 12 further comprising:

the first mobile device and the second mobile device sending connection requests to the server;

the first mobile device and the second mobile device sending a connection request password to the server;

determining if the connection request password is the same as the connection confirmation password; and

establishing the connection between the first mobile device, the second mobile device and the server when the connection request password is the same as the connection confirmation password.

14. The method according to claim 1 further comprising following steps after the server receives the first location data:

storing the latest first location data and second location data in a real-time database and overwriting the content of the real-time database; and

storing the first location data and the second location data in a historical database according to the sequence of the first location data and the second location data.

15. The method according to claim 1, wherein the step of the server transmitting the second location data comprises:

transmitting the second location data to the first mobile device according to the sequence of the second location data;

the determining method further comprising;

providing a first map datum; and

positioning the latest first location data and second location data in the first map datum.

16. The method according to claim 1, wherein the step of the server transmitting the first location data comprises:

transmitting the first location data to the second mobile device according to the sequence of the first location data;

the determining method further comprising;

providing a second map datum; and

positioning the latest first location data and the second location data in the second map datum.

17. The system according to claim 16, wherein the first mobile device further comprises:

a first storage unit, for storing the first location data and the second location data.

18. The method according to claim 1, wherein the step of determining the deviation further comprises:

calculating a first deviation between the latest received first location data and the second location data;

determining if the first deviation is greater than a predetermined value; and

determining that the first mobile device and the second mobile device deviate from each other when the first deviation is greater than the predetermined value.

19. The method according to claim 1, wherein the step of determining the deviation comprises:

orderly calculating a plurality of second deviations between the N successive received first location data and second location data, wherein N is an integer not less than 2;

determining if the second deviations are increasing gradually; and

determining that the first mobile device and the second mobile device deviate from each other when the second deviations are increasing gradually.

20. The method according to claim 19, wherein the server is also used for receiving a plurality of first speed values of the first mobile device and a plurality of second speed values of the second mobile device, the server further transmitting the received first speed values to the second mobile device and transmitting the received second speed values to the first mobile device, and the step of determining deviation further comprises:

orderly calculating a plurality of speed deviations between the first speed values and the second speed values;

determining if the speed deviations are greater than a predetermined speed value; and

determining that the first mobile device and the second mobile device deviate from each other when the second deviations are increasing gradually.

21. The method according to claim 1 further comprising:

determining if a disconnecting time between the server and one of the first mobile device and the second mobile device is longer than a predetermined time; and

the server transmitting a disconnection notice signal to another of the first mobile device and the second mobile device, which is still connected to the server.

22. A system for determining deviation of dynamic location, the system comprising:

a server, comprising a server wireless communication module and a server process unit;

a first mobile device, comprising a first wireless communication module and a first process unit, the first wireless communication module used for transmitting a plurality of first location data to the server wireless communication module; and

a second mobile device, comprising a second wireless communication module and a second process unit, the second wireless communication module used for transmitting a plurality of second location data to the server wireless communication module;

wherein the server wireless communication module used for transmitting the received first location data to the second mobile device and transmitting the received second location data to the first mobile device;

wherein at least one of the server process unit, the first process unit and the second process unit is used for determining if the first mobile device and the second mobile device deviate from each other according to the first location data and the second location data.

23. The system according to claim 22, wherein the first mobile device further comprises:

a first positioning unit, for calculating the first location data according to signals of a plurality of positioning devices;

wherein the second mobile device further comprises;

a second positioning unit, for calculating the second location data according to the signals of the positioning devices.

24. The system according to claim 23, wherein the positioning devices are global positioning system (GPS) satellites or wireless communication base stations.

25. The system according to claim 22, wherein the first mobile device and the second mobile device provide a lead device option and a following device option, so that the first mobile device and the second mobile device are chosen to be the lead device or the following device, the server further used for storing a first identification datum of the first mobile device, a second identification datum of the second mobile device, a first selection and a second selection;

wherein the first selection is that the first mobile device is chosen to be the lead device or the following device, and the second selection is that the second mobile device is chosen to be the lead device or the following device.

26. The system according to claim 25, wherein the first identification datum and the second identification datum comprise license plate number, name of person, identification name, identification number, group name or communication number of wireless communication module.

27. The system according to claim 25, wherein the first wireless communication module is further used for sending connection requests to the server wireless communication module and for transmitting a first identity datum to the server communication module, the second wireless communication module is further used for sending connection requests to the server wireless communication module and for transmitting a second identity datum to the server communication module, and the server process unit is further used for determining if the first identity datum is the same as the first identification datum and for determining if the second identity datum is the same as the second identification datum.

28. The system according to claim 25, wherein the first selection is that the first mobile device is chosen to be the lead device, and the second selection is that the second mobile device is chosen to be the following device, at least one of the server process unit, the first process unit and the second process unit is further used for transmitting a deviation warning signal to at least one of the first mobile device and the second mobile device.

29. The system according to claim 25, wherein the first selection is that the first mobile device is chosen to be the lead device, the second selection is that the second mobile device is chosen to be the following device, and the second mobile device further comprises:

a second navigation module, used for calculating a rejoining route between the latest received first location data and second location data when the first mobile device and the second mobile device deviate from each other.

30. The system according to claim 25, wherein the first selection is that the first mobile device is chosen to be the lead device, the second selection is that the second mobile device is chosen to be the following device, and the second mobile device further comprises:

a second navigation module, for setting the latest first location data to be a destination and setting the latest second location data to be an origin and calculating a rejoining route between the origin and destination.

31. The system according to claim 25, wherein the first selection is that the first mobile device is chosen to be the lead device, the second selection is that the second mobile device is chosen to be the following device, the server wireless communication module is further used for receiving a plurality of first speed values of the first mobile device and a plurality of second speed values of the second mobile device, the server wireless communication module is further used for transmitting the first speed values to the second mobile device and transmitting the second speed values to the first mobile device;

wherein at least one of the server process unit, the first process unit and the second process unit is further used for orderly calculating a plurality of second deviations between N successive first location data and second location data and for determining if the second deviations are increasing gradually, wherein N is an integer not less than 2, the at least one of the server process unit, the first process unit and the second process unit is used for determining if each of the second speed value is greater than a predetermined speed value, and the at least one of the server process unit, the first process unit and the second process unit determines that the first mobile device and the second mobile device deviate from each other when the second deviations are increasing gradually and the second speed values are greater than the predetermined speed value.

32. The system according to claim 22, wherein the first wireless communication module is further used for transmitting a first identification datum to the server wireless communication module, the second wireless communication module is further used for transmitting a second identification datum to the server wireless communication module, the server wireless communication module further transmits the received first identification datum to the second wireless communication module, and the server wireless communication module further transmits the received second identification datum to the first wireless communication module.

33. The system according to claim 22, wherein the first wireless communication module is further used for transmitting a connection confirmation password, and the server is further used for storing the connection confirmation password.

34. The system according to claim 33, wherein the second wireless communication module is further used for sending connection requests to the server wireless communication module and for transmitting a connection request password to the server wireless communication module, the server process unit is further used for determining if the connection request password is the same as the connection confirmation password.

35. The system according to claim 22, wherein the server stores a real-time database and a historical database, the server process unit is further used for storing the latest received first location data and the second location data into the real-time database and overwriting the content of the real-time database and for storing the first location data and the second location data into the historical database according to the sequence of the first location data and the second location data.

36. The system according to claim 22, wherein the first mobile device further comprises:

a first geographic information module, for providing a first map datum; and

a first navigation module, for positioning the latest received second location data on the first map datum.

37. The system according to claim 22, wherein the second mobile device further comprises:

a second geographic information module, for providing a second map datum; and

a second navigation module, for positioning the latest received first location data on the second map datum.

38. The system according to claim 22, wherein at least one of the server process unit, the first process unit and the second process unit is used for calculating a first deviation between the latest received first location data and the second location data, and for determining if the first deviation is greater than a predetermined distance value;

wherein the at least one of the server process unit, the first process unit and the second process unit determines that the first mobile device and the second mobile device deviate from each other when the first deviation is greater than the predetermined value.

39. The system according to claim 22, wherein at least one of the server process unit, the first process unit and the second process unit is further used for calculating a plurality of second deviations between N successive first location data and second location data and for determining if the second deviations are increasing gradually, wherein N is an integer not less than 2;

wherein the at least one of the server process unit, the first process unit and the second process unit determines that the first mobile device and the second mobile device deviate from each other when the second deviations are increasing gradually.

40. The system according to claim 39, wherein the server wireless communication module is further used for receiving a plurality of first speed values of the first mobile device and a plurality of second speed values of the second mobile device, the server wireless communication module is further used for transmitting the first speed values to the second mobile device and transmitting the second speed values to the first mobile device;

wherein at least one of the server process unit, the first process unit and the second process unit is further used for orderly calculating a plurality of speed deviations between the N successive received first speed values and second speed values to determine if each of the speed deviation is greater than a predetermined speed value, the at least one of the server process unit, the first process unit and the second process unit determines that the first mobile device and the second mobile device deviate from each other when the speed deviations are increasing gradually and each of the speed deviations is greater than the predetermined speed value.

41. The system according to claim 22, wherein the server process unit is further used for determining if a disconnecting time between the server and one of the first mobile device and the second mobile device is longer than a predetermined time and for transmitting a disconnection notice signal to another of the first mobile device and the second mobile device, which is still connected, when the disconnecting time is longer than the predetermined time.

42. The system according to claim 22, wherein the second mobile device further comprises:

a second storage unit, for storing the first location data and the second location data.