NAVIGATION METHOD AND DEVICE

• US 20160290815A1
• Filed: 02/26/2016
• Published: 10/06/2016
• Est. Priority Date: 03/30/2015
• Status: Active Grant

• Current Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Original Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Inventors: TANG, Mingyong, LIU, Huayijun, CHEN, Tao
• Granted Patent: US 10,161,756 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60Q 9/00 Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 , e.g. haptic signalling
• CPC Class Codes: B60W 40/06 Road conditions
• CPC Class Codes: G01C 21/34 Route searching; Route guidance
• CPC Class Codes: G01C 21/3453 Special cost functions, i.e. other than distance or default speed limit of road segments
• CPC Class Codes: G01C 21/3461 Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types, segments such as motorways, toll roads, ferries
• CPC Class Codes: G01C 21/3697 Output of additional, non-guidance related information, e.g. low fuel level G01C21/3679 takes precedence
• CPC Class Codes: G01G 19/08 for incorporation in vehicles

Abstract

A navigation method includes: obtaining status information of one or more tires of a vehicle; obtaining road condition information in real time; and performing a route navigation for the vehicle according to the status information, the road condition information, and a preset navigation strategy.

Claims

1. A navigation method for use in a device, comprising:

obtaining status information of one or more tires of a vehicle;

obtaining road condition information in real time; and

performing a route navigation for the vehicle according to the status information, the road condition information, and a preset navigation strategy.

2. The navigation method according to claim 1, wherein the status information of the tires of the vehicle comprises shape change information or tire pressure information of the tires of the vehicle, and

the road condition information comprises weather information, maximum load limits on possible drive routes, and maximum height limits on the possible drive routes.

3. The navigation method according to claim 2, wherein performing the route navigation for the vehicle according to the status information, the road condition information, and the preset navigation strategy comprises:

computing a current load of the vehicle according to the shape change information or the tire pressure information;

judging whether the current load of the vehicle exceeds the maximum load limit on a drive route planned for the vehicle; and

if the current load of the vehicle exceeds the maximum load limit on the planned drive route, sending an alarm to a user and planning an alternative route.

4. The navigation method according to claim 2, wherein performing the route navigation for the vehicle according to the status information, the road condition information, and the preset navigation strategy comprises:

computing a current height of the vehicle according to the shape change information or the tire pressure information;

judging whether the current height of the vehicle exceeds the maximum height limit on a drive route planned for the vehicle; and

if the current height of the vehicle exceeds the maximum height limit of the planned drive route, sending an alarm to a user and planning an alternative route.

5. The navigation method according to claim 2, wherein performing the route navigation for the vehicle according to the status information, the road condition information, and the preset navigation strategy comprises:

judging according to the tire pressure information whether a current tire pressure reaches a preset alert threshold; and

if the current tire pressure reaches the preset alert threshold, and it is determined according to the weather information that there is a slippery road on a drive route planned for the vehicle, sending an alarm to a user and planning an alternative route.

6. The navigation method according to claim 3, further comprising:

judging whether the current load of the vehicle exceeds a maximum load limit of the vehicle; and

if the current load of the vehicle exceeds the maximum load limit of the vehicle, determining that the vehicle is overloaded and sending an alarm to the user.

7. A navigation device, comprising:

a processor; and

a memory configured to store instructions executable by the processor;

wherein the processor is configured to;

obtain status information of one or more tires of a vehicle;

obtain road condition information in real time; and

perform a route navigation for the vehicle according to the status information, the road condition information, and a preset navigation strategy.

8. The navigation device according to claim 7, wherein the status information of the tires of the vehicle comprises shape change information or tire pressure information of the tires of the vehicle, and

the road condition information comprises weather information, maximum load limits on possible drive routes, and maximum height limits on drive routes.

9. The navigation device according to claim 8, wherein the processor is configured to:

compute a current load of the vehicle according to the shape change information or the tire pressure information;

judge whether the current load of the vehicle exceeds the maximum load limit on a drive route planned for the vehicle; and

if the current load of the vehicle exceeds the maximum load limit on the planned drive route, send an alarm to a user and plan an alternative route.

10. The navigation device according to claim 8, wherein the processor is configured to:

compute a current height of the vehicle according to the shape change information or the tire pressure information;

judge whether the current height of the vehicle exceeds the maximum height limit on a drive route planned for the vehicle; and

if the current height of the vehicle exceeds the maximum height limit of the planned drive route, send an alarm to a user and plan an alternative route.

11. The navigation device according to claim 8, wherein the processor is configured to:

judge according to the tire pressure information whether a current tire pressure reaches a preset alert threshold; and

if the current tire pressure reaches the preset alert threshold, and it is determined according to the weather information that there is a slippery road on a drive route planned for the vehicle, send an alarm to a user and plan an alternative route.

12. The navigation device according to claim 9, wherein the processor is further configured to:

judge whether the current load of the vehicle exceeds a maximum load limit of the vehicle; and

if the current load of the vehicle exceeds the maximum load limit of the vehicle, determine that the vehicle is overloaded and send an alarm to the user.

13. A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a terminal, cause the terminal to perform a navigation method, the navigation method comprising:

obtaining status information of one or more tires of a vehicle;

obtaining road condition information in real time; and

performing a route navigation for the vehicle according to the status information, the road condition information, and a preset navigation strategy.

14. The storage medium according to claim 13, wherein the status information of the tires of the vehicle comprises shape change information or tire pressure information of the tires of the vehicle, and

the road condition information comprises weather information, maximum load limit on possible drive routes, and maximum height limits on the possible drive routes.

15. The storage medium according to claim 14, wherein performing the route navigation for the vehicle according to the status information, the road condition information, and the preset navigation strategy comprises:

computing a current load of the vehicle according to the shape change information or the tire pressure information;

judging whether the current load of the vehicle exceeds the maximum load limit on a drive route planned for the vehicle; and

if the current load of the vehicle exceeds the maximum load limit on the planned drive route, sending an alarm to a user and planning an alternative route.

16. The storage medium according to claim 14, wherein performing the route navigation for the vehicle according to the status information, the road condition information, and the preset navigation strategy comprises:

computing a current height of the vehicle according to the shape change information or the tire pressure information;

judging whether the current height of the vehicle exceeds the maximum height limit on a drive route planned for the vehicle; and

if the current height of the vehicle exceeds the maximum height limit of the planned drive route, sending an alarm to a user and planning an alternative route.

17. The storage medium according to claim 14, wherein performing the route navigation for the vehicle according to the status information, the road condition information, and the preset navigation strategy comprises:

judging according to the tire pressure information whether a current tire pressure reaches a preset alert threshold; and

if the current tire pressure reaches the preset alert threshold, and it is determined according to the weather information that there is a slippery road on a drive route planned for the vehicle, sending an alarm to a user and planning an alternative route.

18. The storage medium according to claim 15, wherein the navigation method further comprises:

judging whether the current load of the vehicle exceeds a maximum load limit of the vehicle; and

if the current load of the vehicle exceeds the maximum load limit of the vehicle, determining that the vehicle is overloaded and sending an alarm to the user.