Power conservation in traffic safety applications
First Claim
Patent Images
1. A method, comprising:
- sending, by a device, collision avoidance safety messages to prevent potential collisions between vehicles and the device;
determining, by the device, whether a current or predicted future location of the device intersects an action zone, wherein an action zone corresponds to a geographic area in which a potential collision may occur between a vehicle and the device;
adjusting, by the device, a broadcast rate for the collision avoidance safety messages based on whether the device determines that the current or predicted future location of the device intersects an action zone, wherein adjusting the broadcast rate for the collision avoidance safety messages comprises;
determining, by the device, a broadcast sleep period of time during which the device does not send collision avoidance safety messages based on whether the device determines that the current or predicted future location of the device intersects an action zone; and
determining, by the device, an off period of time for a radio transceiver of the device based on the broadcast sleep period and an amount of time needed for the transceiver to power back on, wherein the device uses the radio transceiver to send the collision avoidance safety messages.
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Abstract
In one embodiment, a device sends collision avoidance safety messages to prevent potential collisions between vehicles and the portable electronic device. The device determines whether a current or predicted future location of the device intersects an action zone. An action zone corresponds to a geographic area in which a potential collision may occur between a vehicle and the device. The device adjusts a broadcast rate for the collision avoidance safety messages based on whether the device determines that the current or predicted future location of the device intersects an action zone.
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Citations
20 Claims
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1. A method, comprising:
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sending, by a device, collision avoidance safety messages to prevent potential collisions between vehicles and the device; determining, by the device, whether a current or predicted future location of the device intersects an action zone, wherein an action zone corresponds to a geographic area in which a potential collision may occur between a vehicle and the device; adjusting, by the device, a broadcast rate for the collision avoidance safety messages based on whether the device determines that the current or predicted future location of the device intersects an action zone, wherein adjusting the broadcast rate for the collision avoidance safety messages comprises; determining, by the device, a broadcast sleep period of time during which the device does not send collision avoidance safety messages based on whether the device determines that the current or predicted future location of the device intersects an action zone; and determining, by the device, an off period of time for a radio transceiver of the device based on the broadcast sleep period and an amount of time needed for the transceiver to power back on, wherein the device uses the radio transceiver to send the collision avoidance safety messages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus, comprising:
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a radio transceiver to send and receive collision avoidance safety messages; a processor coupled to radio transceiver and configured to execute one or more processes; and a memory configured to store a process executable by the processor, the process when executed operable to; send collision avoidance safety messages via the radio transceiver to prevent potential collisions between vehicles and the apparatus; determine whether a current or predicted future location of the apparatus intersects an action zone, wherein an action zone corresponds to a geographic area in which a potential collision may occur between a vehicle and the apparatus; adjust a broadcast rate for the collision avoidance safety messages based on whether the apparatus determines that the current or predicted future location of the apparatus intersects an action zone, wherein the apparatus adjusts the broadcast rate for the collision avoidance safety message by; determining a broadcast sleep period of time during which the device does not send collision avoidance safety messages based on whether the device determines that the current or predicted future location of the device intersects an action zone; and determine an off period of time for a radio transceiver of the device based on the broadcast sleep period and an amount of time needed for the transceiver to power back on, wherein the apparatus uses the radio transceiver to send the collision avoidance safety messages. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A tangible, non-transitory, computer-readable media having software encoded thereon, the software when executed by a processor of a device is operable to:
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send collision avoidance safety messages to prevent potential collisions between vehicles and the device; determine whether a current or predicted future location of the device intersects an action zone, wherein an action zone corresponds to a geographic area in which a potential collision may occur between a vehicle and the device; adjust a broadcast rate for the collision avoidance safety messages based on whether the device determines that the current or predicted future location of the device intersects an action zone, wherein the broadcast rate for the collision avoidance safety message is adjusted by; determining a broadcast sleep period of time during which the device does not send collision avoidance safety messages based on whether the device determines that the current or predicted future location of the device intersects an action zone; and determine an off period of time for a radio transceiver of the device based on the broadcast sleep period and an amount of time needed for the transceiver to power back on, wherein the device uses the radio transceiver to send the collision avoidance safety messages. - View Dependent Claims (17, 18, 19, 20)
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Specification