RADIO UNIT, EVENT NOTIFICATION SYSTEM, AND EVENT NOTIFICATION METHOD

PROBLEM TO BE SOLVED: To make it possible to discriminate an event caused at a sign tool although a configuration is simple.SOLUTION: A radio unit 2 mounted on a sign tool includes: a sensor 21 that measures an acceleration value, determines abnormality when an acceleration value equal to or larger than a predetermined value is applied in an axis other than the gravity direction axis, and reports the abnormality; a processing unit 22 that acquires the acceleration value from the sensor, discriminates a type of the abnormality using a threshold, and outputs a discrimination result; and a communication unit 24 that when transmission of the discrimination result is requested from the processing unit, transmits the discrimination result to a reporting device.SELECTED DRAWING: Figure 3 【課題】構成が簡易でありながら、標識具に発生する事象の判別が可能である。【解決手段】標識具に装着される無線ユニット２であって、加速度値を計測し、重力方向軸以外の軸に予め定められた値以上の加速度値が加わった場合に異常と判断し、この異常を通知するセンサ２１と、前記センサから加速度値を取得し、閾値を用いて異常の種別を判別し、判別結果を出力する処理部２２と、前記処理部から判別結果の送信を要求された場合に、報知装置に前記判別結果を送信する通信部２４とを有する。【選択図】図３