Wireless communication system, communication terminal and storage medium storing wireless communication program

A wireless communication system that is connected via a wireless network to a control terminal and a controlled terminal, wherein the control terminal and the controlled terminal belong to one or more groups and the control terminal performs transmission to each of the groups, the control terminal that transmits control information comprising:

• a control information transmitter that transmits the control information to a plurality of the controlled terminals;
• a response information receptor that receives response information from the controlled terminal;
• a selector that selects the controlled terminal from among the controlled terminals to become a new control terminal to replace the current control terminal when the response information receptor has not received the response information from one of the controlled terminals belonging to one of the groups within a prescribed period of time;
• a request information transmitter that transmits request information to the controlled terminal selected by the selector to request the selected controlled terminal to become the control terminal;
• and
• a controlled terminal transition device that stops the control terminal being the control terminal and transfers it to become the controlled terminal when acceptance information has been received from the controlled terminal indicating acceptance to become the control terminal;
• and
• the controlled terminal that operates based on the control information transmitted from the control terminal comprising:
• a control information receptor that receives the control information from the control terminal;
• a response information transmitter that transmits the response information to the control terminal when the control information is received by the control information receptor;
• an operation execution device that performs an operation prescribed by the control information received by the control information receptor;
• a request information receptor that receives the request information from the control terminal;
• an acceptance information transmitter that transmits the acceptance information to the control terminal when the request information is received by the request information receptor;
• and
• a control terminal transition device that, when the acceptance information is transmitted by the acceptance information transmitter, stops the controlled terminal being the controlled terminal and transfers it to become the control terminal.