Abstract: An information display system according to the present disclosure includes: display device provided in a mask, the display device being configured to display a screen viewed by a person wearing the mask; and display control unit for switching a displaying mode of the screen.

Abstract: An information display system according to the present disclosure includes: display device provided in a mask, the display device being configured to display a screen viewed by a person wearing the mask; and display control unit for switching a displaying mode of the screen.

Abstract: An information display system according to the present disclosure includes: display device provided in a mask, the display device being configured to display a screen viewed by a person wearing the mask; and display control unit for switching a displaying mode of the screen.

Abstract: A data collection apparatus (1) according to the present disclosure includes: instruction data collection means (31a) for collecting instruction data representing an instruction that a leader has given to a subordinate, and first time information indicating a time at which the instruction was given, the subordinate being a person who works at a site, the leader being a person who leads the subordinate, and the instruction data and the first time information being data and information transmitted from a leader terminal (20) operated by the leader; site work data collection means (31b) for collecting site work data representing work performed by the subordinate at the site, and second time information indicating a time at which the site work data was detected, the site work data and the second time information being data and information transmitted from a subordinate terminal (11) carried by the subordinate.

Abstract: A system for calling attention according to the present disclosure includes: at least one sensor configured to detect environmental information; a storage device in which condition data representing a condition under which a specific incident occurs is stored; determination means for determining a possibility of an occurrence of the specific incident based on a result of the detection by the sensor and the condition data stored in the storage device; and calling attention means for calling attention to a fact that there is the possibility of the occurrence of the specific incident, in which when the determination means determines that there is the possibility of the occurrence of the specific incident, the calling attention means calls attention to the fact that there is the possibility of the occurrence of the specific incident.