Pedestrian safety system
First Claim
Patent Images
1. A pedestrian safety system, comprising:
- a sound collector configured to collect an audio signal in an environment of a pedestrian;
a magnetic field detector configured to detect a magnetic field change around the pedestrian, wherein the magnetic field detector is activated when noises in the audio signal exceed a predetermined level;
a processor configured to analyze the collected audio signal to determine whether the audio signal is associated with a vehicle and a distance between the vehicle and the pedestrian, and configured to determine whether the detected change of the magnetic field is caused by the vehicle approaching the pedestrian; and
a notification device configured to notify the pedestrian when the processor determines that the audio signal is associated with the vehicle and the distance is less than a predetermined distance, or when the processor determines that the detected change of the magnetic field is caused by the vehicle approaching the pedestrian.
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Abstract
Techniques are generally described related to a pedestrian safety system. One example pedestrian safety system may include a sound collector configured to collect an audio signal in an environment of a pedestrian; a processor configured to analyze the collected audio signal to determine whether the audio signal is associated with a vehicle and a distance between the vehicle and the pedestrian; and a notification device configured to notify the pedestrian when the processor determines that the audio signal is associated with the vehicle and the distance is less than a predetermined distance.
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Citations
16 Claims
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1. A pedestrian safety system, comprising:
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a sound collector configured to collect an audio signal in an environment of a pedestrian; a magnetic field detector configured to detect a magnetic field change around the pedestrian, wherein the magnetic field detector is activated when noises in the audio signal exceed a predetermined level; a processor configured to analyze the collected audio signal to determine whether the audio signal is associated with a vehicle and a distance between the vehicle and the pedestrian, and configured to determine whether the detected change of the magnetic field is caused by the vehicle approaching the pedestrian; and a notification device configured to notify the pedestrian when the processor determines that the audio signal is associated with the vehicle and the distance is less than a predetermined distance, or when the processor determines that the detected change of the magnetic field is caused by the vehicle approaching the pedestrian. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10)
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9. A pedestrian safety system, comprising:
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a sound collector configured to collect an audio signal in an environment of a pedestrian; a magnetic field detector configured to detect a magnetic field change around the pedestrian; a processor configured to analyze the collected audio signal to determine whether the audio signal is associated with a vehicle and a distance between the vehicle and the pedestrian, and configured to determine whether the detected change of the magnetic field is caused by the vehicle approaching the pedestrian, wherein the magnetic field detector is activated when the processor determines that noises in the audio signal exceed a predetermined level; and a notification device configured to notify the pedestrian when the processor determines that the audio signal is associated with the vehicle and the distance is less than a predetermined distance, or when the processor determines that the detected change of the magnetic field is caused by the vehicle approaching the pedestrian.
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11. A method for warning a hearing impaired pedestrian, comprising:
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collecting an audio signal from an environment of the hearing impaired pedestrian; detecting a magnetic field change around the hearing impaired pedestrian when noises in the audio signal exceed a predetermined level; analyzing the audio signal based on the frequency and the volume of the audio signal to determine whether the audio signal is associated with a vehicle and a distance between the hearing impaired pedestrian and the vehicle; determining whether the detected change of the magnetic field is caused by the vehicle approaching the hearing impaired pedestrian; and notifying the hearing impaired pedestrian when the frequency matches a predetermined frequency and the volume is greater than a predetermined volume, or when the detected change of the magnetic field is caused by the vehicle approaching the hearing impaired pedestrian. - View Dependent Claims (12, 13)
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14. A non-transitory computer-readable medium containing a sequence of instructions to warn a hearing impaired pedestrian, which when executed by a computing device, cause the computing device to:
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collect an audio signal from an environment of the hearing impaired pedestrian; detect a magnetic field change around the hearing impaired pedestrian when noises in the audio signal exceed a predetermined level; analyze the audio signal based on the frequency and the volume of the audio signal to determine whether the audio signal is associated with a vehicle and a distance between the hearing impaired pedestrian and the vehicle; determine whether the detected change of the magnetic field is caused by the vehicle approaching the hearing impaired pedestrian; and notify the hearing impaired pedestrian when the frequency matches a predetermined frequency and the volume is greater than a predetermined volume, or when the detected change of the magnetic field is caused by the vehicle approaching the hearing impaired pedestrian. - View Dependent Claims (15, 16)
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Specification