System and method of use for safety of drivers and pedestrians in traffic circles
First Claim
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1. A system comprising:
- a sensors subsystem operative to detect a position, direction and speed of moving pedestrians and vehicles;
a wireless communications subsystem operative to receive and transmit wireless signals;
a handheld device or devices comprising;
a GPS navigation subsystem operative to determine position of said handheld device, anda wireless communications subsystem operative to receive and transmit said wireless signals;
said GPS navigation subsystem, in a vehicle, operative to determine current location and provide incremental navigation directives predicated upon a specified destination;
a said wireless communications subsystem, in said vehicle, operative to receive and transmit said wireless signals;
a processing subsystem comprising;
a CPU subsystem;
an input/output subsystem;
a program memory subsystem;
one or more programs for execution by said CPU subsystem;
a power subsystem operative to provide electrical power to said sensors, said wireless communications, and said processing subsystems.
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Abstract
The invention disclosed comprises a system and method for managing pedestrian and vehicle action while traversing a traffic-circle intersection so as to optimize pedestrian and driver safety.
14 Citations
9 Claims
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1. A system comprising:
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a sensors subsystem operative to detect a position, direction and speed of moving pedestrians and vehicles; a wireless communications subsystem operative to receive and transmit wireless signals; a handheld device or devices comprising; a GPS navigation subsystem operative to determine position of said handheld device, and a wireless communications subsystem operative to receive and transmit said wireless signals; said GPS navigation subsystem, in a vehicle, operative to determine current location and provide incremental navigation directives predicated upon a specified destination; a said wireless communications subsystem, in said vehicle, operative to receive and transmit said wireless signals; a processing subsystem comprising; a CPU subsystem; an input/output subsystem;
a program memory subsystem;one or more programs for execution by said CPU subsystem; a power subsystem operative to provide electrical power to said sensors, said wireless communications, and said processing subsystems. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of use comprising:
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sensing positions, directions and speeds of pedestrians and vehicles approaching a traffic-circle intersection; conveying said positions, directions and speeds data to a processing subsystem; receiving shared near-term navigation directives from said vehicles; computing a risk level, L, for a collision between said pedestrians and vehicles based on said positions, directions and speeds data conveyed to said processing subsystem and said near-term navigation directives; computing said risk level, L, for a collision between said vehicles based on said positions, directions and speeds data conveyed to said processing subsystem and said near-term navigation directives; comparing said computed risk level, L, to a predetermined upper limit, UL and; if L is equal to or larger than UL, then responding with a directive message sent to appropriate drivers and said pedestrians;
orif L is below UL, then taking no response action. - View Dependent Claims (8, 9)
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Specification