JP2021515532A - 自由空間電力伝送及びデータ通信システムのための送信機アセンブリ - Google Patents
自由空間電力伝送及びデータ通信システムのための送信機アセンブリ Download PDFInfo
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Abstract
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値の外側にあると、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。
通信システムは、1つ又はそれ以上のハイパワーレーザ光源を備え、各ハイパワーレーザ光源は、リモート受信機システムの受信機筐体内の1つ又はそれ以上のハイパワー光受信機のうち、対応するハイパワー受信機にハイパワーレーザビームを生成するように構成され;
通信システムは、各ハイパワーレーザ光源の動作を個別に制御するように構成されたレーザコントローラを備え;
通信システムは、各1つ又はそれ以上のローパワーレーザ光源を備え、各ローパワーレーザ光源は、受信機筐体内の1つ又はそれ以上のローパワー光送受信機システムのうちで、対応するローパワー光送受信機システムに1つ又はそれ以上のローパワーレーザビームを生成するように構成され、1つ又はそれ以上のローパワーレーザは、対応するローパワー送受信機システムのための第1の光通信を含むビームを含み;
通信システムは、対応する各ローパワー光送受信機システムから第2の光通信を受信するように構成された1つ又はそれ以上のフォトダイオードと;
各ハイパワーレーザビームを対応するハイパワー光受信機に向け、かつ各ローパワーレーザビームを対応するローパワー光送受信機システムに向けるように構成されたビームステアリングシステムとレンズアセンブリとを備え、第1のローパワー光送受信機システムのための第1のローパワーレーザビームは、第1のローパワーレーザビームが実質的に送信機筐体と受信機筐体との間の距離全体に沿って第1のハイパワーレーザビームに近接するように、第1のハイパワー光受信機のための第1のハイパワーレーザビームと一緒に伝播され;
通信システムは、1つ又はそれ以上の検出されたイベントに応答して、1つ又はそれ以上のハイパワーレーザ光源を低減するように、レーザコントローラに指示するように構成された安全システムを備える。
(a)1つ又はそれ以上のローパワーレーザビームが、全体距離の任意の部分の上に物体によって部分的に又は完全に衝突されることと、
(b)故障の発生と、
(c)第2の光通信がしきい値期間よりも長く中断されることと、
(d)第2の光通信が予期しない情報を含むことと、
のうちの1つ又はそれ以上を含む。実施形態では、予期しない情報は、
(a)第2の光通信が公称外の性能と一致する光シリアルデータ信号を含むことと、
(b)周囲の照明又は激しい反射による干渉と、
(c)第2の光通信が受信機における状態変化を表すことと、
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、メインプロセッサ及び2次プロセッサからの入力を要求するように構成される。実施形態では、入力は、送信機筐体内から生成された光信号及び電気信号のうちの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関連付けられた温度読取値が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ことと、
(b)1つ又はそれ以上のハイパワーレーザ光源に関連付けられた電流センサの読み取り値が公称値から外れ、又は予想される制限値から外れていることと、
のうちのいずれかが発生した場合において、1つ又はそれ以上のハイパワーレーザ光源のレベルを低減することをレーザコントローラに命令するように構成される。
(a)ハイパワーレーザビームで飽和されることと、
(b)少なくともいくつかの第1の光通信を受信することができないことと、
のうちの1つ又はそれ以上になることを防止するように、第2の波長と十分に異なるように構成される。
Claims (21)
- 無線電力伝送及びデータ通信システムのための送信機であって、
前記送信機は送信機システムを含み、
前記送信機システムは通信システムを含み、
前記通信システムは、
送信機筐体と、
1つ又はそれ以上のハイパワーレーザ光源とを備え、
前記各ハイパワーレーザ光源は、遠隔の受信機システムの受信機筐体内の1つ又はそれ以上のハイパワー光受信機のうち、対応するハイパワー受信機にハイパワーレーザビームを生成するように構成され、
前記通信システムは、
前記各ハイパワーレーザ光源の動作を個別に制御するように構成されたレーザコントローラと、
1つ又はそれ以上のローパワーレーザ光源とを備え、
前記各ローパワーレーザ光源は、前記受信機筐体内の1つ又はそれ以上のローパワー光送受信機システムのうち、対応するローパワー光送受信機システムに1つ又はそれ以上のローパワーレーザビームを生成するように構成され、
前記1つ又はそれ以上のローパワーレーザビームは対応するローパワー送受信機システムのための最初の光通信を含み、
前記通信システムは、
対応する各ローパワー光送受信機システムから第2の光通信を受信するように構成された1つ又はそれ以上のフォトダイオードと、
前記各ハイパワーレーザビームを対応するハイパワー光受信機に向けるようにかつ前記各ローパワーレーザビームを対応するローパワー光送受信機システムに向けるように構成されたビームステアリングシステムとレンズアセンブリとを備え、
第1のローパワー光送受信機システムのための第1のローパワーレーザビームは、第1のローパワーレーザビームが実質的に送信機筐体と受信機筐体との間の距離全体に沿って第1のハイパワーレーザビームに近接するように、第1のハイパワー光受信機のための第1のハイパワーレーザビームとともに伝播され、
前記通信システムは、
検出された1つ又はそれ以上のイベントに応答して、1つ又はそれ以上のハイパワーレーザ光源を低減するようにレーザコントローラに指示するように構成された安全システムを備える、送信機。 - 前記ビームステアリングシステムは光学機械システムであって、前記光学機械システムは、前記送信機筐体から受信機筐体まで延在する範囲の広い錐体に光を投影するように構成された、複数のモータと複数の光学系を含む、請求項1に記載の送信機。
- 前記1つ又はそれ以上の検出されたイベントは、
(a)1つ又はそれ以上のローパワーレーザビームが全体の距離の任意の部分の上で物体によって部分的に又は完全に衝突されることと、
(b)故障の発生と、
(c)前記第2の光通信がしきい値期間よりも長く中断されることと、
(d)前記第2の光通信が予期しない情報を含むことと、
のうちの1つ又はそれ以上を含む、請求項1に記載の送信機。 - 前記予期しない情報は、
(a)前記第2の光通信が公称値外の性能と一致する光シリアルデータ信号を含むことと、
(b)周囲の照明又は激しい反射による干渉と、
(c)前記第2の光通信が受信機における状態変化を表すことと、
のうちの1つ又はそれ以上を含む、請求項3に記載の送信機。 - 前記第1のローパワーレーザビームは、実質的に全距離にわたって前記第1のハイパワーレーザビームを取り囲む、請求項1に記載の送信機。
- 前記送信機は、
前記1つ又はそれ以上のハイパワーレーザ光源、前記レーザコントローラ、前記1つ又はそれ以上のローパワーレーザ光源、及び前記安全システム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をさらに備え、
前記送信機は、
前記ビームステアリングシステムの1次制御を提供するように構成された2次マイクロコントローラをさらに備え、
前記安全システムはさらに、
(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、メインプロセッサ及び2次プロセッサからの入力を要求するように構成される、請求項1に記載の送信機。 - 前記入力は、送信機筐体内から生成された光信号及び電気信号のうちの1つ又はそれ以上を含む、請求項6に記載の送信機。
- 前記1つ又はそれ以上のローパワーレーザ光源は、クラス1のレーザMPE/AEL制限値内の光出力レベルで動作する1つ又はそれ以上のレーザダイオード及びLEDを含む、請求項1に記載の送信機。
- 前記1つ又はそれ以上のハイパワーレーザ光源を低減することは、1つ又はそれ以上の出力レベルをクラス1レーザMPE/AELレベル未満に低下させ、1つ又はそれ以上のハイパワーレーザ光源を完全なオフ状態にシフトすることを含む、請求項1に記載の送信機。
- 前記1つ又はそれ以上のハイパワーレーザ光源を低減することは、規制エネルギー制限値から導出された遅延要件内で発生する、請求項9に記載の送信機。
- 前記安全システムはさらに、
(a)1つ又はそれ以上のハイパワーレーザ光源に関連付けられた温度読取値が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ことと、
(b)1つ又はそれ以上のハイパワーレーザ光源に関連付けられた電流センサの読み取り値が、公称値から外れ又は予想される制限値から外れていることと、
のうちのいずれかが発生した場合において、1つ又はそれ以上のハイパワーレーザ光源を低減することを前記レーザコントローラに指示するように構成される、請求項9に記載の送信機。 - 前記1つ又はそれ以上のハイパワーレーザ光源は、連続波モード又はパルスモードのいずれかで動作する、請求項1に記載の送信機。
- 前記ハイパワーレーザビームは第1の波長を有し、
前記ローパワーレーザビームは第2の波長を有し、
対応するローパワー送受信機システムが、
(a)ハイパワーレーザビームで飽和されることと、
(b)少なくともいくつかの第1の光通信を受信することができないことと、
のうちの1つ又はそれ以上になることを防止するように、前記第1の波長は第2の波長と十分に異なるように構成される、請求項1に記載の送信機。 - 前記ローパワーレーザビームは、第1の空間プロファイルを形成するように成形され、
前記ハイパワーレーザビームは、第2の空間プロファイルを形成するように成形され、
前記第1の空間プロファイルは、前記第2の空間プロファイルと空間的に異なる、請求項1に記載の送信機。 - 前記送信機システムは、既存のタイプの天井又は壁に装着されるデバイスに、部分的に又は完全に統合される、請求項1に記載の送信機。
- 前記既存のタイプの天井又は壁に装着されるデバイスは、照明器具、煙警報器、セキュリティ警報器、無線情報システム、緊急サービスシステム、及びCO2警報器のうちの1つ又はそれ以上を含む、請求項15に記載の送信機。
- 前記送信機システムはさらに、カメラ及び1つ又はそれ以上の光センサを備え、
前記カメラ及び1つ又はそれ以上の光学センサは、透明な物体が送信機システムと受信機の間のパスをブロックするときに、前記送信機システムと前記受信機の間の透明物体を識別しかつ追跡し、かつ、前記1つ又はそれ以上のハイパワーレーザ光源がハイパワーレーザビームを送信することを防止するように構成される、請求項1に記載の送信機。 - 前記送信機システムをさらに、前記送信機システムと受信機の1つ又はそれ以上の動作に関する診断情報をリモートコンピューティングシステムに送信するように構成された無線情報接続を備える、請求項1に記載の送信機。
- 前記送信機システムは、送信機筐体内又はそれに隣接して装着され、前記送信機システム及び前記受信機のうちの1つ又はそれ以上の状態に関する情報をユーザーに伝えるように構成される視覚的インジケータを備える、請求項1に記載の送信機。
- 第1の状態は、前記送信機システム及び受信機が無線電力伝送に従事していることを表し、
第2の状態は、前記送信機システムと受信機との間の部分的又は完全な閉塞を表し、
第3の状態は、前記送信機システムが受信機を発見することを試行中であることを表し、
第4の状態は、前記送信機システム及び受信機が同期されていないことを表す、請求項1に記載の送信機。 - 第1の光通信及び第2の光通信は、1つ又はそれ以上の強度変調/直接検出(IM/DD)技術によって変調される、請求項1に記載の送信機。
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