Information collection device, information collection method, and non-transitory recording medium

An information collection method executed by a device including a moving body on which a first camera is mounted, the information collection method comprising:

• deriving, based on an image obtained by imaging a plurality of registered light sources each of which has information about a light emission pattern and information about an installation coordinate position stored in a memory in association with the registered light source in advance, a coordinate position at which the first camera images the plurality of registered light sources and a first direction in which the first camera images the plurality of registered light sources and also deriving, by detecting a second direction that allows an unregistered light source, the unregistered light source being newly installed at a position at a predetermined height, to fall within an angle of view of the first camera as viewed from a coordinate position at which the plurality of registered light sources is imaged, an installation coordinate position at which the unregistered light source is installed, and
• storing information about the installation coordinate position derived in the deriving in the memory in association with information about a light emission pattern of the unregistered light source as information about a new registered light source.

A non-transitory recording medium storing a program readable by a computer of a device, the device including a moving body on which a first camera is mounted, the program causing the computer to execute processing comprising:

• deriving, based on an image obtained by imaging a plurality of registered light sources each of which has information about a light emission pattern and information about an installation coordinate position stored in a memory in association with the registered light source in advance, a coordinate position at which the first camera images the plurality of registered light sources and a first direction in which the first camera images the plurality of registered light sources and also deriving, by detecting a second direction that allows an unregistered light source, the unregistered light source being newly installed at a position at a predetermined height, to fall within an angle of view of the first camera as viewed from a coordinate position at which the plurality of registered light sources is imaged, an installation coordinate position at which the unregistered light source is installed, and
• storing information about the installation coordinate position derived in the deriving in the memory in association with information about a light emission pattern of the unregistered light source as information about a new registered light source.