WIRELESS BATTERY SYSTEM AND WIRELESS SYSTEM

• Main Authors: SAKABE HIROSHI, YAMAZOE TAKANORI
• Format: Patent
• Language: English; Japanese
• Published: 21.02.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SIGNALLING; TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS

To provide a wireless battery system capable of coping with a communication failure due to interference from an external wireless device, and a reflection and shielding of radio waves due to a surrounding physical environment.SOLUTION: In a wireless battery system comprising a cell controller having an antenna and having a function of detecting a status of an attached storage battery, the status can be mutually transmitted and received by radio waves using any one of a plurality of communication channels with a battery controller having a plurality of antennas and having a function of selecting and switching an antenna to be used; the battery controller has a function of switching a communication channel to be used when a frequency of successful reception of a signal transmitted from the cell controller is less than a predetermined value; and, in such a case where both conditions that there is/are, among the plurality of antennas, (1) at least one antenna and (2) two or more antennas in which a frequency of successfully receiving a signal transmitted from the cell controller is equal to or greater than a set value are satisfied, the battery controller judges that an evaluation ranking of a communication channel of (2) is high, and switches the communication channel.SELECTED DRAWING: Figure 1 【課題】外部無線機器からの妨害や周囲の物理環境による電波の反射や遮蔽による通信不良に対応可能な無線電池システムを提供する。【解決手段】アンテナを有し、付設された蓄電池の状態を検知する機能を有するセルコントローラと、複数のアンテナを有し、使用するアンテナを選択し切り替える機能を有するバッテリーコントローラとは、複数の通信チャンネルのいずれか１つを使用する無線により相互に送受信でき、バッテリーコントローラは、セルコントローラから送信された信号の受信に成功する頻度が所定の値未満であるときには、使用する通信チャンネルを切り替える機能を有し、複数のアンテナのうち、セルコントローラから送信された信号の受信に成功する頻度が設定値以上であるアンテナが、（１）少なくとも１つ存在する場合、（２）２つ以上存在する場合、の両方の条件を満たす場合は、（２）の通信チャンネルが評価順位が高いと判定し、切り替える。【選択図】図１