A position
management system 1 provided with an identification information
transmitter 10, a relaying mobile terminal 20, and a management device 30, wherein the identification information
transmitter10 is provided with: a power generation unit 12 that is held by a moving person and that generates
electric power using
environmental energy; an identification-side storage unit 13 for storing
transmitter identification information that is intended for uniquely identifying the identification information transmitter 10; and an identification-side transmission unit 14 which, by using the
electric power generated by the power generation unit 12 when a transmission condition is met, wirelessly transmits an identification-side
signal that includes the transmitter identification information storedby the identification-side storage unit 13. The relaying mobile terminal 20 is provided with a terminal-side
communication unit 21 for receiving the identification-side
signal transmitted from the identification information transmitter 10, and a terminal-side
communication unit 21 for wirelessly transmitting a relaying-side
signal. The management device 30 is provided with a management-side
communication unit 31 for receiving the relaying-side signal transmitted from the relaying mobile terminal 20, and a management-side
control unit 33 for performing control on the basis of the relaying-sidesignal received by the management-side communication unit 31.