Originating information detecting method, originating information detecting apparatus, and originating information detecting program

摘要

The calling information notification device (104) receives the measurement result information of the number of steps transmitted from the relay device (102) by the communication device (101) attached to the livestock (A). The originating information detection apparatus (104) determines whether or not the livestock (A) has an abnormal state based on the received measurement result information. When it is determined that there is an abnormal state and the worker (W) receives a notification that the worker (W) corresponds to the livestock (A), the originating information detection device (104) tracks the communication device (101) of the livestock (A). Set to. The originating information notification device (104) transmits a change instruction to the communication device (101) via the relay device (102) so as to set the transmission interval of the measurement result information short. The communication device (101) shortens the transmission interval based on the received change instruction. Thereafter, each time the communication device (101) set as the tracking target changes the relay device (102) used for reporting the measurement result information, the calling information notification device (104) The position information associated with the correct repeater (102) is notified.