Safety control systems

The present invention relates to a sensor for the outside portion control safety system, the safety control system in accordance with an aspect of the present invention acquires the peripheral information, and transmitting information obtained by the peripheral terminal; A plurality of terminals and transmitting the obtained position information and environmental information of the surrounding workers; Repeater for transmitting the location information and the environment information to an intermediate server; The location information and an intermediary server for storing the environment information, and transmits the location information and the environment information to the control server; And a case which is located in dangerous areas by the subscriber station, the predetermined position information, and outputs the environment information on the control display, and the control server for transmitting the alert data to the user terminal; including, but, the terminal signals of the RS If strength is weaker than the signal strength of other terminals adjacent, it may be adjacent to the other terminal to transmit the location information and the environment information.