ACCUMULATOR BATTERY STATE MONITORING SYSTEM AND ACCUMULATOR BATTERY DEVICE

To provide a technology capable of acquiring correct measurement data with certainty and enhancing monitoring accuracy, in wireless communication for acquiring measurement data of an accumulator battery group.SOLUTION: An accumulator battery state monitoring system comprises: a plurality of accumulator battery devices 6 each comprising an accumulator battery 5 and a slave unit 4 (a measurement communication device); and a master unit 3 connected with each slave unit by wireless communication. The slave unit 4 has: measurement means that measures a parameter of the accumulator battery 5 and stores measurement data including the measurement value; and communication means that includes an antenna that can transmit signals by using the plurality of kinds of frequencies, and transmits the measurement data signal including the measurement data to the master unit 3. The master unit 3 transmits a plurality of measurement data acquired from the plurality of accumulator battery devices 6, to a host device. The slave unit 4 transmits to the master unit 3 the measurement data signal including the same measurement data by multiple repetitions while changing a frequency by using the plurality of kinds of frequencies.SELECTED DRAWING: Figure 7 【課題】蓄電池群の測定データの取得のための無線通信の際に、正しい測定データを確実に取得でき、監視精度を高めることができる技術を提供する。【解決手段】蓄電池状態監視システムは、蓄電池５と子機４（測定通信装置）とを備える複数の蓄電池装置６と、各々の子機に無線通信接続される親機３とを備える。子機４は、蓄電池５のパラメータを測定し、測定値を含む測定データを記憶する測定手段と、複数種類の周波数を用いて信号送信可能なアンテナを含み、測定データを含む測定データ信号を、親機３へ送信する通信手段と、を有する。親機３は、複数の蓄電池装置６から取得した複数の測定データを、上位の装置へ送信する。子機４は、同一の測定データを含む測定データ信号を、複数種類の周波数を用いて周波数を変えながら複数回の繰り返しで親機３へ送信する。【選択図】図７