CONTROL SYSTEM, WIRELESS TELEPHONE TERMINAL, CONTROL METHOD, AND CONTROL PROGRAM

WIPO Patent Application WO/2021/111580

A1

Provided is a control system including a first wireless telephone terminal, a second wireless telephone terminal, and a wireless mobile body, wherein the first wireless telephone terminal includes: a calling and receiving unit which establishes a voice channel of a mobile communication network between the second wireless telephone terminal and the wireless mobile body by using a multipoint call function for controlling voice calls between a plurality of points; and a control unit which controls the wireless mobile body by transmitting a control signal to the wireless mobile body via the voice channel, and which when the intensity of radio waves with the wireless mobile body drops below a threshold value, transmits a switching signal for switching a user who operates the wireless mobile body, to the second wireless telephone terminal via the voice channel.

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NAGAOKA RYO (JP)
NOGUCHI MASAHIKO (JP)
KIMURA SHUJI (JP)
KIMURA NOBUHIRO (JP)
OSADA TAICHI (JP)
YASUNAGA TAKASHI (JP)
TODA TAKATO (JP)
MATSUURA RURIKO (JP)

PCT/JP2019/047619

June 10, 2021

December 05, 2019

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NIPPON TELEGRAPH & TELEPHONE (JP)

H04W4/06

EP3422598A1	2019-01-02
JP2014103586A	2014-06-05

MIYOSHI Hidekazu et al. (JP)

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