Control system, timing device, and process executed by the system

A control system comprising:

• a timing device comprising:
• detector to detect inversion of the timing device;
• and
• a radiotransmitter to wirelessly transmit a predetermined signal including identification information of the timing device or information for determining a predetermined time from a time point at the inversion of the timing device, upon detection of the inversion by the detector, the timing device indicating an elapsed time from the time point at the inversion;
• and
• a computer comprising:
• a memory and a processor, wherein
• the processor starts transmission of a control signal according to a control scenario determined with the predetermined signal to at least one predetermined device other than the timing device if switching of the timing device to an operational mode is determined with the predetermined signal received by a receiver, and transmits a signal indicating the end of the control for the at least one predetermined device if switching of the timing device to a nonoperational mode is determined with the predetermined signal received by the receiver.