Vehicle pedestrian safety system and methods of use and manufacture thereof

Patent metadata

Field	Value
Publication number	US-9786178-B1
Application number	US-201615187764-A
Country	US
Kind code	B1
Filing date	Jun 20, 2016
Priority date	Aug 2, 2013
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

The systems and methods are directed to a vehicle control system for use with: a vehicle communications network, at least one source of pedestrian data relevant to at least one pedestrian's location, and at least one source of vehicle system data relevant to the vehicle's location and movement. The control system can include a processor that is configured to determine a vehicle's current location and speed based on the vehicle system data, build a predetermined number of vehicle polygons hardcoded into an application for representing a predicted path of the vehicle, build at least one pedestrian polygon representing a predicted path for at least one pedestrian detected in pedestrian data, and define a plurality of warning zones based on the vehicle polygons, and determine if one or more of the pedestrian polygons intersects at least one of the predetermined number of hardcoded vehicle polygons.

First claim

What is claimed is:

1. A vehicle control system for use with: a vehicle communications network, at least one source of pedestrian data relevant to at least one pedestrian's location, and at least one source of vehicle system data relevant to the vehicle's location and movement, the control system, comprising: a processor that is configured to: access the pedestrian data and the vehicle system data, determine a vehicle's current location and speed based on the vehicle system data, build a predetermined number of vehicle polygons hardcoded into an application for representing a predicted path of the vehicle, build at least one pedestrian polygon representing a predicted path for at least one pedestrian detected in pedestrian data, classify each pedestrian detected in the pedestrian data as either at a left position or a right position relative to a centerline of the predicted path of the vehicle, define a plurality of warning zones based on the vehicle polygons, each warning zone defined by one or more vehicle polygons within the predicted path of the vehicle with a different level of warning based on a distance of each vehicle polygon from the vehicle, determine if one or more of the pedestrian polygons intersects at least one of the predetermined number of hardcoded vehicle polygons, and actuate a warning to a vehicle operator based on an intersection of the one or more pedestrian polygons with one or more of the vehicle polygons.

2. The vehicle control system of claim 1 , wherein the processor builds the predetermined number of hardcoded vehicle polygons based on at least a speed of the vehicle to determine a length of each vehicle polygon.

3. The vehicle control system of claim 1 , wherein the processor builds the predetermined number of hardcoded vehicle polygons based on predetermined distances from a center point of the vehicle to determine a width of each vehicle polygon.

4. The vehicle control system of claim 1 , wherein the processor builds the at least one pedestrian polygon based on at least a speed of the pedestrian to determine a length of each pedestrian polygon.

5. The vehicle control system of claim 1 , further comprising the processor configured to classify each pedestrian detected in the pedestrian data as either a left movement direction or a right movement direction relative to a centerline of the predicted path of the vehicle.

6. The vehicle control system of claim 5 , further comprising:
a display screen operationally connected to the controller, wherein the processor is configured to actuate the warning to the display screen, wherein the processor can display a relative direction and position each pedestrian detected in the pedestrian data.

7. The vehicle control system of claim 1 , wherein the processor is further configured to actuate the warning based on an intersection of the one or more pedestrian polygons with one or more of the warning zones.

8. The vehicle control system of claim 1 , wherein the processor is further configured to build the vehicle polygons by defining coordinates at each corner of each polygon based on an offset distance from a center point location of the vehicle.

9. The vehicle control system of claim 1 , wherein the processor is further configured to build the vehicle polygons by defining a lane width as a width of each vehicle polygon and defining a lane curve as curvature of the predetermined number of vehicle polygons.

10. A vehicle control system for use with: a vehicle communications network, at least one source of pedestrian data relevant to at least one pedestrian's location, and at least one source of vehicle system data relevant to the vehicle's location and movement, the control system, comprising: a vehicle communication system that is configured to receive pedestrian data from a pedestrian transceiver device, the pedestrian data including one or more pedestrian locations relevant to a location of the vehicle; an electronic storage medium that is configured to store at least one of the pedestrian data and vehicle system data, a processor that is configured to: access the pedestrian data and the vehicle system data, determine a vehicle's current location and speed based on the vehicle system data, build a predetermined number of vehicle polygons hardcoded into an application for representing a predicted path of the vehicle, build at least one pedestrian polygon representing a predicted path for at least one pedestrian detected in pedestrian data, classify each pedestrian detected in the pedestrian data as either at a left position or a right position relative to a centerline of the predicted path of the vehicle, define a plurality of warning zones based on the vehicle polygons, each warning zone defined by one or more vehicle polygons within the predicted path of the vehicle with a different level of warning based on a distance of each vehicle polygon from the vehicle, determine if one or more of the pedestrian polygons intersects at least one of the predetermined number of hardcoded vehicle polygons, and actuate a warning to a vehicle operator based on an intersection of the one or more pedestrian polygons with one or more of the vehicle polygons.

11. The vehicle control system of claim 10 , wherein the processor builds the predetermined number of hardcoded vehicle polygons based on at least a speed of the vehicle to determine a length of each vehicle polygon.

12. The vehicle control system of claim 10 , wherein the processor builds the predetermined number of hardcoded vehicle polygons based on predetermined distances from a center point of the vehicle to determine a width of each vehicle polygon.

13. The vehicle control system of claim 10 , wherein the processor builds the at least one pedestrian polygon based on at least a speed of the pedestrian to determine a length of each pedestrian polygon.

14. The vehicle control system of claim 10 , further comprising the processor configured to classify each pedestrian detected in the pedestrian data as either a left movement direction or a right movement direction relative to a centerline of the predicted path of the vehicle.

15. The vehicle control system of claim 14 , further comprising: a display screen operationally connected to the controller, wherein the processor is configured to actuate the warning to the display screen, wherein the processor can display a relative direction and position each pedestrian detected in the pedestrian data.

16. The vehicle control system of claim 10 , wherein the processor is further configured to actuate the warning based on an intersection of the one or more pedestrian polygons with one or more of the warning zones.

17. The vehicle control system of claim 10 , wherein the processor is further configured to build the vehicle polygons by defining coordinates at each corner of each polygon based on an offset distance from a center point location of the vehicle, and wherein the processor is further configured to build the vehicle polygons by defining a lane width as a width of each vehicle polygon and defining a lane curve as curvature of the predetermined number of vehicle polygons.

18. A method to enhance pedestrian safety using a vehicle control system that is configured for use with: a vehicle communications network, at least one source of pedestrian data relevant to at least one pedestrian's location, and at least one source of vehicle system data relevant to the vehicle's location and movement, the method comprising: accessing the pedestrian data and the vehicle system data; determining the vehicle's current location and speed based on th

Assignees

• Honda Motor Co Ltd

Inventors

• Bai Xue
• Miucic Radovan

Classifications

• G08G1/161

  Decentralised systems, e.g. inter-vehicle communication · CPC title

• B60Q9/008

  for anti-collision purposes · CPC title

• B60Q5/006

  indicating risk of collision between vehicles or with pedestrians · CPC title

• G08B21/06

  indicating a condition of sleep, e.g. anti-dozing alarms · CPC title

• G08G1/166 Primary

  for active traffic, e.g. moving vehicles, pedestrians, bikes · CPC title