JP7208654B2 - 安全でセキュアな自由空間電力伝送及びデータ伝送の方法 - Google Patents
安全でセキュアな自由空間電力伝送及びデータ伝送の方法 Download PDFInfo
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- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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Description
1)追加のプロセッサ26;及び
2)メインプロセッサ18。
追加の電気素子(ほとんどは表示されていません)は、フィルタリング、接地、シールドなどを担当する受動デバイスと、電力変換、WiFi、Bluetooth、又は専用RFリンクを介したテレメトリの送信のためのデバイスと、初期校正に必要なセンサと、ユーザの利益のために提供される追加のインジケータLED又は画面(システム機能などには必要ありません)とを含む。
1.消費電力のオーバーヘッドは、処理、データストレージ、A/D又はD/A変換、及び送信を含む。
2.レートであるシリアルデータレートであって、そのシステムが適切に受信情報と送信機を通信し、適切なアクション/コマンドに従うために、上記の情報を解釈できる。
3.部品数/タイプであり、つまり、パーツ数を減少させる。特にモバイル受信側では、そのようなサブシステムの実装に必要なフットプリントとスペースを削減する。
4.複数のアクセス、又は単一の送信機で複数のモバイル受信機に対応する機能。
1.[送信機]レーザダイオードの前段-電圧と電流;
2.[受信機]フォトダイオードアセンブリの下流-電圧と電流;
3.[受信機]DC/DC変換器の下流-電圧のみ;及び
4.[送信機]FSOCフォトダイオードの下流-電圧のみ。
1.光電センサの電気的短絡又は開回路を介した単一障害。このような障害は、開回路の場合、短絡又は浮遊状態の場合、ゼロの電圧出力を引き起こす。いずれかの障害状態では、プロセッサは、ビームのシャットダウンを自動的にトリガする数クロックサイクルにわたって繰り返されるビットシーケンスを認識する。
2.プロセッサ又はレーザ電源のいずれかに単一の障害が発生し、電気的短絡又は開回路が発生した。開回路の場合、そこには電流給電電源回路がないであろう。従って、レーザダイオードへの通電のための可能なメカニズムは存在しないであろう。短絡の場合、プロセッサは、レーザ電源スイッチにプロセッサのトリガ状態に対して、前述の監視対象のレーザダイオード電流のチェックを実行する機能を持っている。現在の読み取り値は、回路に存在する電流又は存在しない電流をそれぞれ表す1又は0として解釈される。そのバイナリ出力は、OR演算を介してプロセッサのトリガ状態と比較できる。この比較は、危険な状況でレーザダイオードへの供給を停止する信号を出力する場合がある。
3.障害状態に関する追加のソフトウェアチェック。これには、レーザのハイパワー供給を開始する前に、割り当てられた予想信号が複数存在する必要がある。これらの特定の信号の不在又は公称外の値があると、レーザダイオードはオフのままになる。
ハイパワーレーザビームを受けたときにフォトダイオードアセンブリの熱特性を制御することができるヒートシンク/スプレッダ要素74;
フォトダイオードアセンブリ63と一緒に配置されたIR通信フォトダイオード76;
フォトダイオードアセンブリ63及び複合放物面集光器(CPC)ミラー要素80と同じ場所に配置されたIRLED78;
反射防止(AR)コーティングされた、引っかき抵抗性のある窓面(図示せず)であって、ミラー要素80上のコレクタ入口にある窓面;
電池68のモジュラアタッチメント又は受信機再充電可能ユニットの組み込みのためのリチウムイオン又はリチウムポリマー電池筐体(図示せず);
上記の要素をパッケージング及び/又は収容するためのデバイス筐体(図示せず)。
実施形態では、受信機デバイスは、家庭用電化製品、医療、又は産業の産業で使用されるより大きなデバイスに統合することができる。
1)他のより重要なユニットは、送信機が要求側デバイスに提供できる以上の電力を必要とする;
2)送信したデバイスIDは、ターゲット送信機によって修理できないと判断される(例えばデバイスのファームウェア又はハードウェアは、認可日切れ又は無認可である);もしくは、
3)受信機において認識エラー状態の集合がある。
次に、送信機は受信機への接続を解放することで、他の受信機の機能は、優先順位を取ることができる。
受信機が、受信機に電気的に結合されたエネルギー貯蔵装置に充電が必要とすることを認識することと;
受信機とエネルギー貯蔵装置の充電状態に関する情報を含むビーコン信号を受信機から送信機に送信することと;
受信機が送信機からの第1の位置特定信号を認識し、第1の位置特定信号に応答して、受信機とエネルギー貯蔵装置の充電状態に関する追加情報を含むローパワーレーザ光接続を受信機と送信機との間で確立することと;
受信機が送信機からの第2の位置特定信号を認識し、第2の位置特定信号に応答して、光パワーがハイパワーレーザビームを介して送信機から受信機に伝送されるときに、受信機と送信機との間のハイパワーレーザ光接続を確立することと;
ローパワーレーザビームを介して受信機から送信機への追加情報を周期的に通信することとを含み、前記通信するときに、受信機への光パワーの安全な伝送を監視するために送信できるように光パワーが送信機から受信機にハイパワーレーザビームを介して伝送される。
送信機が、受信機と電気的に受信機に結合された電池の充電状態に関する情報を含むビーコン信号であって、受信機から送信されたビーコン信号を認識することと;
送信機から第1の位置特定信号を受信機に送信し、第1の位置特定信号が受信機によって認識されるとき、受信機と電池の充電状態に関する追加情報を含むローパワーレーザ光接続であって、送信機と受信機との間のローパワーレーザ光接続を確立することと;
送信機から第2の位置特定信号を受信機に送信し、第2の位置特定信号が受信機によって認識されるときに、光パワーがハイパワーレーザビームを介して送信機から受信機に伝送される、送信機と受信機の間にハイパワーレーザビーム接続を確立することと;
送信機と受信機の間の衝突についてローパワーレーザビーム接続を監視し、衝突が発生した場合はハイパワーレーザビーム接続を低減又は終了することと;
追加情報のためのローパワービームを監視し、追加情報が、
(a)所定のしきい値よりも長く受信されないことと、
(b)否定的な情報(無効な情報)を含むことと、
のうちの1つ又はそれ以上であるときに、ハイパワービーム接続を低減し又は終了することとを含む。
(a)公称値外の性能と一致するデータ信号と、
(b)周囲の照明又は激しい反射による干渉と、
(c)受信機での状態変化と、
のうちの1つ又はそれ以上を含む。実施形態では、無効な情報(否定的な情報)は、
(a)公称値から外れている、又は予想される制限値から外れている温度読取値と、
(b)公称値から外れている、又は予想される範囲から外れている電流センサ読取値と、
のうちの1つ又はそれ以上を含む。
(a)1つ又はそれ以上のハイパワーレーザ光源に電力を供給することと、
(b)1つ又はそれ以上のハイパワーレーザ光源が最適なパワービームレベルに到達することを可能にすることと、
のうちの1つ又はそれ以上を実行するために、送信機が、送信機をハイレベルで制御するように構成されたメインプロセッサからの第1の信号と、ハイパワーレーザビーム及びローパワーレーザビームステアリングシステムの一次制御を提供するように構成された2次プロセッサからの第2の信号とを要求することをさらに備える。
Claims (17)
- 送信機と受信機の間の無線電力伝送とデータ通信を調整する方法であって、
前記方法は、
前記受信機が、前記受信機に電気的に結合されたエネルギー貯蔵装置が充電を必要とすることを認識することと、
前記受信機と前記エネルギー貯蔵装置の充電状態に関する情報を含むビーコン信号を、前記受信機から前記送信機に送信することと、
前記受信機が前記送信機からの第1の位置特定信号を認識し、前記第1の位置特定信号に応答して、前記受信機と前記送信機との間でローパワーレーザビーム接続を確立することとを含み、
前記ローパワーレーザビーム接続は、前記受信機と前記エネルギー貯蔵装置の充電状態に関する追加情報を含み、
前記方法は、
前記受信機が前記送信機から第2の位置特定信号を認識し、前記第2の位置特定信号に応答して、前記受信機と前記送信機との間で、光パワーがハイパワーレーザビームを介して前記送信機から前記受信機に伝送されるハイパワーレーザビーム接続を確立することを含み、
1つ以上のローパワーレーザビームの中断がハイパワーレーザビームの中断の前に発生しかつ1つ以上のローパワーレーザビームの中断によりハイパワーレーザビームが停止されるように、前記ハイパワーレーザビームが前記受信機へ光パワーを伝達するときに、前記ローパワーレーザビーム接続の1つ以上のローパワーレーザビームを前記ハイパワーレーザビームと共伝搬させ、
前記方法は、
前記ローパワーレーザビームを介して前記受信機から前記送信機への前記追加情報を周期的に通信することとを含み、前記通信するときに、前記送信機が前記受信機への光パワーの安全な伝送を監視できるように光パワーが前記送信機から前記受信機にハイパワーレーザビームを介して伝送される、方法。 - 前記受信機から送信することは、前記受信機に基づく情報を送信することを含む、請求項1に記載の方法。
- 前記受信機に基づく情報は、前記受信機の動作に関する診断情報を含む、請求項2に記載の方法。
- 前記受信機に基づく情報は、ハイパワーレーザビームと前記受信機のフォトダイオードアセンブリとの位置合わせに関する情報を含む、請求項2に記載の方法。
- 前記受信機に基づく情報は、前記エネルギー貯蔵装置に伝送された光パワーの量に関する情報を含む、請求項2に記載の方法。
- 前記受信機に基づく情報は、前記エネルギー貯蔵装置の電圧に関する情報を含む、請求項2に記載の方法。
- 前記受信機に基づく情報は、送受信機システムが埋め込まれたデバイスに関する情報を含む、請求項2に記載の方法。
- 前記受信機に基づく情報は、温度測定値と、公称値から外れている、又は予想される制限値を超えている電流センサ測定値のうちの1つ又はそれ以上を含む、請求項2に記載の方法。
- 送信機と受信機の間の電力及びデータ通信の無線伝送を調整する方法であって、
前記方法は、
前記送信機が、受信機から送信されたビーコン信号であって、前記受信機と電気的に受信機に結合された電池の充電状態に関する情報を含むビーコン信号を認識することと、
前記送信機から前記受信機に第1の位置特定信号を送信し、前記第1の位置特定信号が前記受信機により認識されたときに、前記送信機と前記受信機との間のローパワーレーザ光接続を確立することとを含み、
前記ローパワーレーザ光接続は、前記受信機と電池の充電状態に関する追加情報を含み、
前記方法は、
前記送信機から第2の位置特定信号を前記受信機に送信し、前記第2の位置特定信号が前記受信機により認識されたときに、前記送信機と前記受信機の間で、光パワーがハイパワーレーザビームを介して前記送信機から前記受信機に伝送されるハイパワーレーザビーム接続を確立することを含み、
1つ以上のローパワーレーザビームの中断がハイパワーレーザビームの中断の前に発生しかつ1つ以上のローパワーレーザビームの中断によりハイパワーレーザビームが停止されるように、前記ハイパワーレーザビームが前記受信機へ光パワーを伝達するときに、前記ローパワーレーザビーム接続の1つ以上のローパワーレーザビームを前記ハイパワーレーザビームと共伝搬させ、
前記方法は、
前記送信機と前記受信機の間の衝突について前記ローパワーレーザビーム接続を監視し、衝突が発生したときに、前記ハイパワーレーザビーム接続を低減し又は終了することと、
前記追加情報のためのローパワーレーザビームを監視し、前記追加情報が、
(a)所定のしきい値よりも長く受信されないことと、
(b)否定的な情報を含むことと、
のうちの1つ又はそれ以上であるときに、ハイパワービーム接続を低減し又は終了することとを含む、方法。 - 前記送信機は、カメラ及び1つ又はそれ以上の光学センサを含み、
前記方法はさらに、
前記カメラと前記1つ又はそれ以上の光学センサを使用して、前記送信機と前記受信機の間の透明な物体を識別して追跡することを含む、請求項9に記載の方法。 - 前記透明な物体が前記送信機と前記受信機の間のパスをブロックするときに、前記ハイパワーレーザビーム接続を終了することをさらに含む、請求項10に記載の方法。
- 前記否定的な情報は、
(a)公称値外の性能と一致するデータ信号と、
(b)周囲の照明又は激しい反射による干渉と、
(c)前記受信機での状態変化と、
のうちの1つ又はそれ以上を含む、請求項9に記載の方法。 - 前記否定的な情報は、
(a)公称値から外れている、又は期待される制限値から外れている温度読取値と、
(b)公称値から外れている、又は期待される範囲から外れている電流センサ読取値と、
のうちの1つ又はそれ以上を含む、請求項9に記載の方法。 - 前記方法は、
(a)1つ又はそれ以上のハイパワーレーザ光源に電力を供給することと、
(b)1つ又はそれ以上のハイパワーレーザ光源が最適なパワービームレベルに到達することを可能にすること、
とのうちの1つ又はそれ以上を実行するために、前記送信機が、前記送信機をハイレベルで制御するように構成されたメインプロセッサからの第1の信号と、ハイパワーレーザビーム及びローパワーレーザビームのステアリングシステムの一次制御を提供するように構成された2次プロセッサからの第2の信号とを要求することをさらに備える、請求項9に記載の方法。 - 前記ハイパワーレーザビームを低減することは、ハイパワーレーザ光源の出力レベルをクラス1レーザのMPE/AELレベル未満に低減することを含む、請求項9に記載の方法。
- 前記ハイパワーレーザビームを低減することは、規制エネルギー要件から導出される期間内に発生する、請求項9に記載の方法。
- 前記ローパワーレーザビーム接続の1つ又はそれ以上のローパワーレーザビームは、前記ハイパワーレーザビーム接続の第1のハイパワーレーザビームを取り囲む、請求項9に記載の方法。
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