A sensor system including a plurality of sensors configured to detect a physical quantity, a plurality of transmission terminals connected to the plurality of sensors, and a time information processing device (30, 30a, 50) configured to perform a process based on information transmitted from plurality of transmission terminals, wherein each of the plurality of transmission terminals comprises an event signal generator (271,271a) configured to detect the occurrence of an event on the basis of the physical quantity detected by each of the plurality of sensors connected to each of the plurality of transmission terminals and generate a signal indicating that the event has occurred; an event time determiner (272,272a) configured to determine a detection time of the event based on the signal generated by the event signal generator; a communication time determiner (273,273a) configured to determine a transmission time at the time of transmission to the time information processing device (30, 30a, 50); and a communicator (274,274a) configured to transmit time information of the transmission time and time information of the detection time of the event to the time information processing device (30, 30a, 50), and wherein the time information processing device (30, 30a, 50) comprises a reception time determiner configured to determine a reception time of the time information transmitted from the plurality of transmission terminals; and a time information processor configured to perform a process based on a plurality of transmission times transmitted from each of the plurality of transmission terminals and a plurality of reception times; and a position locator configured to locate a generation source of the event, wherein the position locator is configured to locate the generation source of the event on the basis of the process result of the time information processor and position information of the plurality of sensors. wherein each of the plurality of transmission terminals comprises an event signal generator (271,271a) configured to detect the occurrence of an event on the basis of the physical quantity detected by each of the plurality of sensors connected to each of the plurality of transmission terminals and generate a signal indicating that the event has occurred; an event time determiner (272,272a) configured to determine a detection time of the event based on the signal generated by the event signal generator; a communication time determiner (273,273a) configured to determine a transmission time at the time of transmission to the time information processing device (30, 30a, 50); and a communicator (274,274a) configured to transmit time information of the transmission time and time information of the detection time of the event to the time information processing device (30, 30a, 50), and wherein the time information processing device (30, 30a, 50) comprises a reception time determiner configured to determine a reception time of the time information transmitted from the plurality of transmission terminals; and a time information processor configured to perform a process based on a plurality of transmission times transmitted from each of the plurality of transmission terminals and a plurality of reception times; and a position locator configured to locate a generation source of the event, wherein the position locator is configured to locate the generation source of the event on the basis of the process result of the time information processor and position information of the plurality of sensors.