| CPC G08B 21/182 (2013.01) [G06K 7/10 (2013.01)] | 3 Claims |
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1. A system comprising:
a first device comprising:
a first processor;
a first radio frequency transceiver; and
a first user interface component;
wherein the first radio frequency transceiver is configured to:
transmit a first signal; and
receive a second signal from a remote device in response to the first signal;
wherein the first processor is configured to:
determine a first time value associated with the receiving of the second signal;
determine that at least one of the first time value or a first distance value determined using the first time value is less than or equal to a first threshold value, wherein the first threshold value is associated with the first device;
trigger a first output by the first user interface component based on at least one of the first time value or the first distance value being less than or equal to the first threshold value;
a second device comprising:
a second processor;
a second radio frequency transceiver; and
a second user interface component;
wherein the second radio frequency transceiver is configured to:
transmit a third signal; and
receive a fourth signal from the remote device in response to the third signal;
wherein the second processor is configured to:
determine a second time value associated with the receiving of the fourth signal;
determine that at least one of the second time value or a second distance value determined using the second time value is greater than a second threshold value, wherein the second threshold value is associated with the second device; and
cause the second radio frequency transceiver to transmit a fifth signal.
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