Communication apparatus and computer program thereof

摘要

A non-transitory computer-readable storage medium may store computer-readable instructions for a communication apparatus, wherein the computer-readable instructions, when executed by a processor of the communication apparatus, cause the communication apparatus to perform: obtaining first and second radio field intensities from the first external apparatus; calculating a first value indicating a ratio of the first and the second radio field intensities; obtaining third and fourth radio field intensities from the second external apparatus after receiving the third predetermined signal; calculating a second value indicating a ratio of the third and fourth radio field intensities; specifying a relationship between first and second distances by using the first and second values, the first distance being a distance between the communication apparatus and the first external apparatus, and the second distance being a distance between the communication apparatus and the second external apparatus; and outputting target data by using the specified relationship.

主权项

1. A non-transitory computer-readable storage medium storing computer-readable instructions for a communication apparatus,
wherein the computer-readable instructions, when executed by a processor of the communication apparatus, cause the communication apparatus to perform:
obtaining a first radio field intensity of a first predetermined signal by receiving the first predetermined signal from a first external apparatus via a first interface of the communication apparatus, the first interface being an interface for executing a wireless communication in accordance with a first communication scheme;obtaining a second radio field intensity of a second predetermined signal by receiving the second predetermined signal from the first external apparatus via the first interface after receiving the first predetermined signal;calculating a first value indicating a ratio of the first radio field intensity and the second radio field intensity;obtaining a third radio field intensity of a third predetermined signal by receiving the third predetermined signal from a second external apparatus different from the first external apparatus via the first interface;obtaining a fourth radio field intensity of a fourth predetermined signal by receiving the fourth predetermined signal from the second external apparatus via the first interface after receiving the third predetermined signal;calculating a second value indicating a ratio of the third radio field intensity and the fourth radio field intensity;specifying a relationship between a first distance and a second distance by usine the first value and the second value, the first distance being a distance between the communication apparatus and the first external apparatus, and the second distance being a distance between the communication apparatus and the second external apparatus; andoutputting target data of an output target by using the specified relationship.