瞭解 Windows 10 無線投影Understanding Windows 10 Wireless Projection

Windows 10 提供順暢的無線投影體驗。Windows 10 provides a seamless wireless projection experience. 當您要建立部分的無線投影解決方案時,請務必瞭解該功能包含哪些內容。As you are building your part of the wireless projection solution it is important to understand what that functionality includes.

Windows 10 無線投影使用者介面The Windows 10 Wireless Projection User Interface

最重要的是,Windows 提供原生連線體驗,可讓使用者連接到無線接收器。First and foremost, Windows provides a native connection experience that allows a user to connect to a wireless receiver. 無線接收器的連線可以透過數種方式進行:A connection to a wireless receiver can be made in several ways:

  • 透過 [動作中心]。Through the Action Center. 在 [動作中心] (圖1)中,按一下 [連線 ] 快速動作In the Action Center (Figure 1), click the Connect Quick Action.

  • 使用熱鍵。Using a hotkey. 選取 [ Windows 標誌鍵 + K ] (圖2)。Select the Windows logo key+ K (Figure 2).

  • 使用裝置選擇器 UIWith the Device Picker UI. 支援轉換的 Windows 應用程式包含裝置選擇器 UI,例如 Windows Movie & 電視應用程式中的 [轉換成裝置] 功能(圖3)或 Edge 瀏覽器。Windows Apps that support casting contain a device picker UI, such as the Cast to device feature in the Windows Movie & TV App (Figure 3) or the Edge browser.

Connect 快速動作 連接 ui 裝置選擇器 UI
圖1: Connect 快速動作Figure 1: Connect Quick Action 圖2:連接 UIFigure 2: Connect UI 圖3:裝置選擇器 UIFigure 3: Device Picker UI

Windows 10 支援和管理兩種不同的方法來建立無線投影串流。Windows 10 supports and manages two different methods for creating a wireless projection stream. 這兩種方法都是由 Windows 在幕後處理,並運用上述的完全相同 UI。Both methods are handled behind the scenes by Windows and leverage the exact same UI shown above.

使用 Miracast 的無線投影Wireless Projection using Miracast

自第一個 Windows 10 版本以來,對 Miracast 的支援已經存在,因為在這種情況下,Miracast 中的 Windows 投資只會增加一次。Support for Miracast has been present since the first Windows 10 version, and since that time Windows investments in Miracast as a projection experience have only increased.

透過 Miracast 的無線投影提供數個優點:Wireless Projection over Miracast offers several benefits:

  • 一種簡單的連線體驗,可讓使用者尋找並連接至 Miracast 接收者。A simple connection experience that allows a user to find and connect to Miracast receivers.

  • 執行 Miracast 標準以確保與數百個數百萬個 Miracast 裝置的互通性。Implementation of the Miracast standard to ensure interoperability with hundreds of millions of Miracast devices.

  • 原生 RTSP 堆疊微調為適用于 Miracast,不需要在 Windows 10 OS 以外的任何其他軟體。A native RTSP stack fine-tuned to work for Miracast, requiring no additional software is required outside the Windows 10 OS.

  • 支援 UIBC (使用者輸入後端通道),此功能可讓 Miracast 接收器(觸控、手寫筆、滑鼠、鍵盤和遊戲台)的輸入控制 Miracast 傳送者(如果---),而且只有在---使用者明確允許時才會這樣做。Support for UIBC (User Input Back Channel), which allows inputs from the Miracast receiver (touch, stylus, mouse, keyboard and gamepad) to control the Miracast sender, if---and only if---the user explicitly allows this.

  • 與領先業界的 Microsoft Miracast 接收者(Microsoft 無線顯示器介面卡)以及頂尖的協力廠商 Miracast 接收者的高品質互通性。High quality interoperability with industry leading Microsoft Miracast receivers (Microsoft Wireless Display Adapter) as well as leading 3rd party Miracast receivers.

  • 支援投射受保護的內容(如果有 HDCP 金鑰的話)。Support for the projection of Protected Content (if HDCP keys are present).

  • 連接至 Miracast 接收者時,支援使用以 PIN 為基礎的配對。Support for the use of a PIN based pairing when connecting to a Miracast receiver.

  • 持續性設定檔,記住您過去是否已連線到特定的 Miracast 接收器。Persistent profiles, remembering if you have connected to a specific Miracast receiver in the past. 記住設定檔以重新連接至 Miracast 接收者的功能,可減少在後續連接上連接所需的時間。The ability to remember a profile for reconnecting to a Miracast receiver reduces the time it takes to connect on subsequent connections.

  • 支援 Miracast 延伸模組,可啟用額外的功能,大幅提升了 Miracast 的使用體驗。Support for Miracast extensions that enable additional capabilities, dramatically improving the Miracast experience.

現有 Wi-fi 網路上的無線投影Wireless Projection over an existing Wi-Fi network

觀察到在 90% 的案例中,當使用者啟動無線投影串流時,他們使用的裝置已連線到家庭或企業中現有的 Wi-fi 網路。It has been observed that in 90% of cases, when a User starts a Wireless Projection stream, the device they are using is already connected to an existing Wi-Fi network, either in a home or a business. 為回應此情況,Microsoft 已擴充透過區域網路傳送 Miracast 串流的能力,而不是透過 Windows 10 建立者更新中的直接無線連結。In response to this, Microsoft has extended the ability to send a Miracast stream over a local network rather than over a direct wireless link in the Windows 10 Creators Update.

現有 Wi-fi 網路上的無線投影提供數個優點:Wireless Projection over an existing Wi-Fi network offers several benefits:

  • 此解決方案會利用現有的連線,大幅減少專案內容所需的時間。This solution leverages an existing connection which can significantly reduce the time it takes to project content.

  • 電腦不需要管理兩個同時連線(Wi-fi 連線和與接收者的 Wi-fi 直接連線),每個連線都只會取得一半的最大頻寬。The PC does not need to manage two simultaneous connections (a Wi-Fi connection and a Wi-Fi Direct connection to the receiver), each of which would only get half the maximum bandwidth.

  • 使用現有的連線可簡化無線裝置需要執行的工作,進而提高可靠性並提供非常穩定的串流。Using an existing connection simplifies the work that the wireless device needs to perform, which both increases reliability and provides a very stable stream.

  • 使用者不需要變更其連接到接收者的方式,因為它們使用相同的 UX (如 [圖 2-4] 所示)。The user does not have to change how they connect to a receiver because they use the same UX (as is shown in Figures 2-4).

  • 只有透過 Ethernet 或安全的 Wi-fi 網路,Windows 才會選擇在現有的連接上進行專案。Windows will only choose to project over an existing connection if the connection is trusted, either over an Ethernet or a secure Wi-Fi network.

  • 電腦上沒有無線驅動程式或硬體的必要變更。There are no required changes to the wireless drivers or hardware on a PC.

  • 這也適用于未透過 Wi-fi Direct 針對 Miracast 優化的舊版無線硬體。This also works well with older wireless hardware that is not optimized for Miracast over Wi-Fi Direct.

  • Windows 會自動偵測接收者何時支援這種功能,並會在適用的情況下,透過現有的網路路徑傳送影片串流。Windows automatically detects when a receiver supports this functionality and will send the video stream over the existing network path when applicable.