System and method for pedestrian alert
First Claim
1. A method for issuing a pedestrian alert comprising:
- deriving a pedestrian path representing a projected path for a pedestrian;
deriving a vehicle path representing a projected path for a vehicle;
determining an intersection of the pedestrian path and the vehicle path;
determining an alert characteristic responsive to the determined intersection; and
emitting an alert signal from the vehicle responsive to the determined alert characteristic using an array of loudspeakers, wherein the determined alert characteristic includes a direction and the alert signal is emitted in a direction responsive to the direction characteristic, and the direction of the emitted signal from the array of loudspeakers is electronically steered using phase modulation;
wherein the emitted alert signal draws the attention of the pedestrian to the presence of the vehicle to mitigate the likelihood of a collision between the vehicle and the pedestrian.
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Accused Products
Abstract
A system and method for pedestrian alert that derives a pedestrian path representing a projected path for a pedestrian, derives a vehicle path representing a projected path for a motor vehicle, determines an intersection of the pedestrian path and the vehicle path, determines alert characteristics responsive to the determined intersection, and generates an alert that is emitted from the vehicle responsive to the determined alert characteristics. The system and method for pedestrian alert may be built, installed or implemented in a motor vehicles that is operated in environments where the motor vehicle may be in close proximity to pedestrians. The system and method for pedestrian alert mitigates the likelihood of a collision between the motor vehicle and a pedestrian by emitting an alert that may draw the attention of the pedestrian to the presence of the motor vehicle.
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Citations
27 Claims
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1. A method for issuing a pedestrian alert comprising:
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deriving a pedestrian path representing a projected path for a pedestrian; deriving a vehicle path representing a projected path for a vehicle; determining an intersection of the pedestrian path and the vehicle path; determining an alert characteristic responsive to the determined intersection; and emitting an alert signal from the vehicle responsive to the determined alert characteristic using an array of loudspeakers, wherein the determined alert characteristic includes a direction and the alert signal is emitted in a direction responsive to the direction characteristic, and the direction of the emitted signal from the array of loudspeakers is electronically steered using phase modulation; wherein the emitted alert signal draws the attention of the pedestrian to the presence of the vehicle to mitigate the likelihood of a collision between the vehicle and the pedestrian. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for issuing a pedestrian alert comprising:
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a pedestrian path deriver to derive a pedestrian path representing a projected path for a pedestrian; a vehicle path deriver to derive a vehicle path representing a projected path for a vehicle; an intersection determiner to determine an intersection of the pedestrian path and the vehicle path; an alert characteristic generator to determine an alert characteristic responsive to the determined intersection; and an alert generator to emit an alert signal from the vehicle responsive to the determined alert characteristic using an array of loudspeakers, wherein the determined alert characteristic includes a direction and the alert signal is emitted in a direction responsive to the direction characteristic, and the direction of the emitted signal from the array of loudspeakers is electronically steered using phase modulation; wherein the emitted alert signal draws the attention of the pedestrian to the presence of the vehicle to mitigate the likelihood of a collision between the vehicle and the pedestrian. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for issuing a pedestrian alert comprising:
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deriving a pedestrian path representing a projected path for a pedestrian; deriving a vehicle path representing a projected path for a vehicle; determining an intersection of the pedestrian path and the vehicle path; determining an alert characteristic responsive to the determined intersection; and emitting an alert signal from the vehicle responsive to the determined alert characteristic; wherein a likelihood of a collision between the motor vehicle and the pedestrian is mitigated when the emitted alert draws the attention of the pedestrian to the presence of the vehicle; wherein the determined alert characteristic includes any of;
a loudness, a pitch or a signal content;where a signal content characteristic includes an impulsive sound containing transient broadband information, and wherein the source of the alert signal is more easily localized by the pedestrian.
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18. A system for issuing a pedestrian alert comprising:
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a pedestrian path deriver to derive a pedestrian path representing a projected path for a pedestrian; a vehicle path deriver to derive a vehicle path representing a projected path for a vehicle; an intersection determiner to determine an intersection of the pedestrian path and the vehicle path; an alert characteristic generator to determine alert characteristic responsive to the determined intersection; and an alert generator to emit an alert signal from the vehicle responsive to the determined alert characteristics; wherein the likelihood of a collision between the motor vehicle and the pedestrian is mitigated when the emitted alert draws the attention of the pedestrian to the presence of the vehicle wherein the determined alert characteristic includes any of;
a loudness, a pitch, or a signal content;where the signal content characteristic includes an impulsive sound containing transient broadband information, and wherein the source of the alert signal is more easily localized by the pedestrian.
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19. A non-transitory machine-readable medium encoded with machine-executable instructions, wherein execution of the machine-executable instructions is for:
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deriving a pedestrian path representing a projected path for a pedestrian; deriving a vehicle path representing a projected path for a vehicle; determining an intersection of the pedestrian path and the vehicle path; determining an alert characteristic responsive to the determined intersection; and emitting an alert signal from the vehicle responsive to the determined alert characteristic using an array of loudspeakers, wherein the determined alert characteristic includes a direction and the alert signal is emitted in a direction responsive to the direction characteristic, and the direction of the emitted signal from the array of loudspeakers is electronically steered using phase modulation; wherein the emitted alert signal draws the attention of the pedestrian to the presence of the vehicle to mitigate the likelihood of a collision between the vehicle and the pedestrian. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A non-transitory machine-readable medium encoded with machine-executable instructions, wherein execution of the machine-executable instructions is for:
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deriving a pedestrian path representing a projected path for a pedestrian; deriving a vehicle path representing a projected path for a vehicle; determining an intersection of the pedestrian path and the vehicle path; determining an alert characteristic responsive to the determined intersection; and emitting an alert signal from the vehicle responsive to the determined alert characteristic; wherein a likelihood of a collision between the motor vehicle and the pedestrian is mitigated when the emitted alert draws the attention of the pedestrian to the presence of the vehicle; wherein the determined alert characteristic includes any of;
a loudness, a pitch or a signal content;where a signal content characteristic includes an impulsive sound containing transient broadband information, and wherein the source of the alert signal is more easily localized by the pedestrian.
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Specification