Locating systems and methods for wireless seat belt monitoring in vehicles with removable or reconfigurable seats

Patent metadata

Field	Value
Publication number	US-11117546-B2
Application number	US-202016782206-A
Country	US
Kind code	B2
Filing date	Feb 5, 2020
Priority date	Feb 5, 2020
Publication date	Sep 14, 2021
Grant date	Sep 14, 2021

Abstract

Locating systems and methods for wireless seat belt monitoring in vehicles with removable or reconfigurable seats are provided herein. An example device includes a first transceiver associated with a seat belt buckle, the first transceiver having a processor and memory for storing instructions that include a first unique code identifying the first transceiver and a first orientation value of the seat belt buckle to a vehicle receiver, the first orientation value indicating a location of the seat belt buckle on a seat, the processor executes the instructions to transmit the first unique code and the first orientation value to a vehicle receiver.

First claim

What is claimed is:

1. A system, comprising:
a seat belt buckle of a vehicle; and
a first transceiver associated with the seat belt buckle,
wherein the first transceiver comprises a processor and memory for storing instructions that include a first unique code identifying the first transceiver and a first orientation value of the seat belt buckle to a vehicle receiver, the first orientation value indicating an orientation of the seat belt buckle on a seat, wherein the processor executes the instructions to transmit the first unique code and the first orientation value to a vehicle receiver, the vehicle receiver using the first unique code and the first orientation value to differentiate the first transceiver from other transceivers within the vehicle,
wherein the vehicle receiver is further configured to transmit low power signals to the first transceiver, wherein the first transceiver determines a signal strength of the low power signals, wherein a location of the first transceiver is determined by triangulation and/or trilateration using the signal strength, wherein the signal strength is indicative of a distance between the first transceiver and low power transmitters emitting the low power signal.

2. The system according to claim 1 , wherein the first orientation value indicates either right-handed position or a left-handed position of the seat belt buckle relative to the seat.

3. The system according to claim 1 , further comprising a buckle switch, wherein a buckle status of the seat belt buckle is buckled when the buckle switch indicates that a tongue of a seat belt has been inserted into the seat belt buckle, further wherein the buckle status is unbuckled when the buckle switch indicates that the tongue of a seat belt has not been inserted into the seat belt buckle, the first transceiver being configured to transmit the buckle status to the vehicle receiver.

4. The system according to claim 1 , wherein the first transceiver is assigned to the seat and data indicative of the assignment is stored by the vehicle receiver.

5. A system comprising:
a first transceiver associated with a first seat of a vehicle, the first transceiver being located in close proximity to a second transceiver of a second seat of the vehicle;
a third transceiver associated with the first seat of the vehicle, wherein the third transceiver is located centrally on the first seat, and wherein the third transceiver is operatively connected to the first transceiver; and
a vehicle receiver comprising:
a processor; and
a memory for storing instructions, the processor executing the instructions to:
determine a location of the first transceiver based on a first unique code identifying transmitted by the first transceiver; and
determine an orientation of the first transceiver relative to the first seat based on a first transceiver orientation value, the first transceiver orientation value indicating an orientation of the first transceiver relative to the seat.

6. The system according to claim 5 , wherein the processor is configured to:
determine a location of the second transceiver based on a second unique code transmitted by the second transceiver; and
determine an orientation of the second transceiver relative to the first seat based on a second transceiver orientation value, the second transceiver orientation value indicating an orientation of the second transceiver relative to the first seat.

7. The system according to claim 6 , wherein the first transceiver is associated with a first seat belt buckle, the first seat belt buckle being oriented on a left-hand side of the seat, further wherein the second transceiver is associated with a second seat belt buckle, the second seat belt buckle being oriented on a right-hand side of the seat.

8. The system according to claim 7 , further comprising:
determining a buckle status of the first seat belt buckle; and
presenting the location and the orientation of the first seat belt buckle, along with the buckle status on a vehicle display.

9. The system according to claim 7 , wherein the first seat belt buckle and the second seat belt buckle are collocated as a double buckle in the middle of a two position seat.

10. The system according to claim 6 , further comprising:
a plurality of vehicle antennas located throughout a cabin of the vehicle, the plurality of vehicle antennas being configured to transmit low power signals;
wherein the first transceiver:
receives the low power signals;
determines signal strengths of the low power signals; and
transmits the signal strengths to the vehicle receiver; and

wherein the vehicle receiver utilizes the signal strengths to triangulate and/or trilaterate the location of the first transceiver.

11. A method, comprising:
receiving a first unique code identifying a first transceiver and a first orientation value, the first transceiver being associated with a first seat belt buckle of a first seat;
receiving a second unique code identifying a second transceiver and a second orientation value, the second transceiver being associated with a second seat belt buckle of a second seat;
determining, at a first time, a location of the first transceiver using a signal strength provided by the first transceiver and location of the second transceiver using a signal strength provided by the second transceiver;
determining if the first transceiver and the second transceiver are associated with a single seat or are associated with two different seats using the first unique code, the second unique code, the first orientation value, and the second orientation value; and
determining, at a second time, a second location of the first transceiver using a signal strength provided by the first transceiver and a second location of the second transceiver using a signal strength provided by the second transceiver wherein the second location of the first transceiver and the second location of the second transceiver are different than the location of the first transceiver and the location of the second transceiver.

12. The method according to claim 11 , further comprising determining a buckle status of the first seat belt buckle.

13. The method according to claim 11 , further comprising displaying the location of the first seat belt buckle and the location of the second seat belt buckle.

14. The method according to claim 11 , further comprising transmitting low power signals to the first transceiver, wherein the first transceiver determines the signal strength signals of the low power signals, wherein the location of the first transceiver is determined by triangulation and/or trilateration using the signal strength signals, wherein the signal strength signals are indicative of a distance between the first transceiver and low power transmitters emitting the low power signal.

15. The method of claim 11 , further comprising:
determining a location of a third transceiver using signal strength signals provided by the third transceiver, wherein the third transceiver is located centrally on the first seat, and wherein the third transceiver is operatively connected to the first transceiver, and
wherein determining if the first transceiver and the second transceiver are associated with a single seat or are associated with two different seats is further based on the location of the third transceiver.

Assignees

• Ford Global Tech Llc

Inventors

• Cuddihy Mark
• Patel Dilip
• Zielinski Mark Andre
• Sadatsharan Karthikeyan

Classifications

• B60R2022/4816

  for sensing locking of buckle · CPC title

• B60R22/48 Primary

  Control systems, alarms, or interlock systems, for the correct application of the belt or harness · CPC title

• B60R2022/1812

  Connections between seat belt and buckle tongue · CPC title

• B60R2022/4866

  Displaying or indicating arrangements thereof · CPC title