Information processing device
An information processing device includes a first transmitter, one or more processors, and a recording medium. The first transmitter is configured to transmit first key-identifying information using a radio-frequency electromagnetic wave having a predetermined frequency, the first key-identifying information being linked to a predetermined vehicle. The recording medium stores a program configured to be executed by the one or more processors. The program includes one or more instructions configured to cause the one or more processors to perform a process to stop the first transmitter from transmitting the first key-identifying information when it is determined that the radio-frequency electromagnetic wave having the predetermined frequency has increased in intensity.
1 . An information processing device comprising:
a first transmitter configured to transmit first key-identifying information using a radio-frequency electromagnetic wave having a predetermined frequency, the first key-identifying information being linked to a predetermined vehicle such that an operation of the predetermined vehicle is allowed based on the first key-identifying information;
a second transmitter configured to transmit a fake signal using the radio-frequency electromagnetic wave having the predetermined frequency, the fake signal comprising second key-identifying information being unlinked to the predetermined vehicle such that the operation of the predetermined vehicle is not allowed based on the second key-identifying information;
one or more processors; and
a recording medium storing a program configured to be executed by the one or more processors,
wherein the program comprises one or more instructions configured to cause the one or more processors to perform a process to (i) stop the first transmitter from transmitting the first key-identifying information and (ii) continue to cause the second transmitter to transmit the fake signal, when it is determined that the radio-frequency electromagnetic wave having the predetermined frequency has increased in intensity.
2 . The information processing device according to claim 1 , further comprising:
a receiver configured to receive the radio-frequency electromagnetic wave having the predetermined frequency,
wherein the one or more instructions are configured to cause the one or more processors to perform a process to measure an intensity of the radio-frequency electromagnetic wave that has the predetermined frequency and that is received by the receiver.
3 . The information processing device according to claim 1 ,
wherein the one or more instructions are configured to cause the one or more processors to perform a process to stop the first transmitter from transmitting the first key-identifying information when it is determined, based on a comparison of a measured intensity of the radio-frequency electromagnetic wave with a threshold, that the radio-frequency electromagnetic wave having the predetermined frequency has increased in intensity.
4 . The information processing device according to claim 2 ,
wherein the one or more instructions are configured to cause the one or more processors to perform a process to stop the first transmitter from transmitting the first key-identifying information when it is determined, based on a comparison of a measured intensity of the radio-frequency electromagnetic wave with a threshold, that the radio-frequency electromagnetic wave having the predetermined frequency has increased in intensity.
5 . The information processing device according to claim 1 ,
wherein the one or more instructions are configured to cause the one or more processors to perform a process to stop the first transmitter from transmitting the first key-identifying information when it is determined, based on a comparison of a most recently measured intensity of the radio-frequency electromagnetic wave with an intensity of the radio-frequency electromagnetic wave measured a predetermined time earlier, that the radio-frequency electromagnetic wave having the predetermined frequency has increased in intensity.
6 . The information processing device according to claim 2 ,
wherein the one or more instructions are configured to cause the one or more processors to perform a process to stop the first transmitter from transmitting the first key-identifying information when it is determined, based on a comparison of a most recently measured intensity of the radio-frequency electromagnetic wave with an intensity of the radio-frequency electromagnetic wave measured a predetermined time earlier, that the radio-frequency electromagnetic wave having the predetermined frequency has increased in intensity.
7 . The information processing device according to claim 1 , wherein the one or more instructions are configured to cause the one or more processors to perform a process to resume the first transmitter transmitting the first key-identifying information when a predetermined time has elapsed after the first transmitter is stopped from transmitting the first key-identifying information.
8 . The information processing device according to claim 1 , wherein the one or more instructions are configured to cause the one or more processors to perform a process to resume the first transmitter transmitting the first key-identifying information when it is determined that the intensity of the radio-frequency electromagnetic wave having the predetermined frequency is no longer high.
9 . The information processing device according to claim 1 , wherein the one or more instructions are configured to cause the one or more processors to perform a process to stop the first transmitter from transmitting the first key-identifying information when the intensity of the radio-frequency electromagnetic wave is determined to be high and at least one of the first key-identifying information and the second key-identifying information is contained in a signal on the radio-frequency electromagnetic wave.
10 . The information processing device according to claim 1 , wherein the one or more instructions are configured to cause the one or more processors to perform a process to at least one of (i) cause the first transmitter to transmit a weakened first key-identifying information and (ii) cause the second transmitter to transmit a strengthened fake signal, when it is determined that the radio-frequency electromagnetic wave having the predetermined frequency has increased in intensity.
11 . The information processing device according to claim 1 , wherein the second transmitter is configured to transmit two or more fake signals, each fake signal containing different second key-identifying information.
12 . The information processing device according to claim 1 , wherein a time to start transmitting the first key-identifying information differs from a time to start transmitting the fake signal.
13 . The information processing device according to claim 1 , wherein the one or more instructions are configured to cause the second transmitter to start transmitting the fake signal after a door of the predetermined vehicle is locked.