蓝牙(Bluetooth)是设备到设备文件传输和近距离通信的黄金标准，但它有一个您可能没有听说过的竞争对手：WiFi Direct。
什么是WiFi 直连(WiFi Direct)？这种鲜为人知的替代方案已经存在多年，但与蓝牙(Bluetooth)不同，您可以使用WiFi Direct进行文件传输之外的其他用途。
Windows 10直接支持WiFi Direct，但如果您打算使用它，您需要知道它有什么好处（以及使用它是否安全）。有很多设备支持WiFi Direct（以各种名称），因此，如果您想了解更多有关Windows 10中(Windows 10)WiFi Direct的信息，以下是您需要了解的内容。
什么是 WiFi 直连？(What Is WiFi Direct?)
WiFi Direct是一种标准，允许使用WiFi无线电频率（通常为 2.4GHz 和 5GHz）与其他设备建立直接的点对点连接。您不需要连接现有的WiFi网络，因为连接是直接在两个设备之间建立的。
WiFi Direct的工作原理是在主机设备上启用软件生成的接入点，在此过程中创建一个临时WiFi网络。然后使用WiFi(WiFi)保护设置(Setup)( WPS ) 进行身份验证，使用按钮或PIN码建立连接。这允许设备之间的无缝（但安全）连接。
与蓝牙(Bluetooth)一样，您可以使用它来发送文件、与其他设备共享屏幕、直接玩游戏、共享互联网连接等等。它还在其他系统和通信标准（例如近场通信(near field communication)）中发挥核心作用。
其他WiFi 特定(WiFi-specific)品牌，例如Miracast，也使用WiFi Direct进行通信。虽然Miracast是其自己的标准，但它建立在WiFi Direct技术之上，以实现安全的屏幕镜像。
然而，对WiFi Direct的支持相当不完整。虽然它在Windows 10中完全受支持（取决于您的设备），但Apple设备（如Mac(Macs)、iPhone 和 iPad）使用专有的AirDrop和AirPlay。
现代 Android(Modern Android)设备（从Android 4.0起）提供对WiFi Direct的支持，但您可能需要第三方应用程序才能充分利用其功能。它还支持某些智能电视(TVs)、游戏机和其他支持 WiFi 的设备。
检查 Windows 10 PC 上的 WiFi Direct 支持(Checking for WiFi Direct Support on your Windows 10 PC)
如果您想使用WiFi Direct作为蓝牙(Bluetooth)的替代品，那么最好使用 Windows 10 PC 或笔记本电脑。Windows 10 完全支持WiFi Direct标准，但您的内部WiFi芯片（或外部WiFi设备）需要支持它。
如果您想检查您的Windows PC 或笔记本电脑是否支持WiFi Direct标准，那么您需要使用Windows PowerShell。
- 要打开新的PowerShell终端，请右键单击开始(Start)菜单并选择Windows PowerShell (Admin)选项。
- 在新的Windows PowerShell窗口中，键入ipconfig /all并按Enter。将列出您的网络适配器和连接的列表。查看适配器列表以找到列出的Microsoft Wi-Fi Direct 虚拟适配器(Microsoft Wi-Fi Direct Virtual Adapter )。
如果列出了 Microsoft Wi-Fi Direct 虚拟适配器(Microsoft Wi-Fi Direct Virtual Adapter )，则您的 PC 支持WiFi Direct连接。如果不支持，则您需要连接第三方USB WiFi设备以启用对它的支持。
连接到其他 WiFi Direct 兼容设备(Connecting to Other WiFi Direct Compatible Devices)
如果您的 PC 支持它，那么您可以连接到其他支持WiFi Direct的设备。为此，您可以使用 Windows 的搜索和发现功能来定位附近的其他WiFi Direct设备。
- 为此，您需要打开Windows 设置(Windows Settings)菜单。右键单击(Right-click)开始(Start)菜单并选择设置(Settings)选项。
- 在Windows 设置(Windows Settings)菜单中，选择设备(Devices)选项。从那里，您需要选择添加蓝牙或其他设备(Add Bluetooth or other device )选项。
- 在弹出的添加设备(Add a device )菜单中，您可以选择要连接的设备类型。例如，一些WiFi Direct设备主要用于屏幕镜像。要添加其中之一，请选择无线显示器或底座(Wireless display or dock)选项。否则，请改为选择“其他所有内容”(Everything else )选项。
- 接下来将显示您的 PC 可以连接的附近可用设备的列表。支持WiFi(WiFi) Direct 的设备也将出现，包括智能手机、智能电视(TVs)、游戏机等。要连接到这些设备，请选择列出的设备。
- 连接设备后，选择完成(Done)按钮以完成连接。
- 然后，该设备将出现在 Windows 设置的蓝牙和其他设备(Bluetooth & other devices)菜单中的已知设备列表中。
虽然此方法适用于大多数WiFi Direct设备，但您可能还可以使用其他方法进行连接，因此请参阅这些设备的用户手册以获取更多信息。
例如，一些支持WiFi Direct标准的设备将拥有自己的始终在线的WiFi网络，您可以连接到这些网络。例如，如果您有 HP 打印机或Sony智能电视，您可以通过加入该设备的DIRECT-XX无线网络进行连接。
使用 WiFi Direct 发送文件(Sending Files Using WiFi Direct)
WiFi Direct的最佳用途之一是用于文件传输，尤其是在您有大量文件的情况下。虽然您可以使用蓝牙(Bluetooth)，但传输大文件（或大量文件）将比WiFi Direct连接花费更长的时间。
如果您有Android设备，使用(Android)WiFi Direct的最佳方式是使用支持Windows 10 和Android的Feem应用程序。虽然iPhone 和 iPad 不支持WiFi Direct ，但 Feem(Feem)确实使用另一种方法在这些平台上传输文件。
- 首先，为您的Android设备下载并安装Feem 应用程序。(Feem app)您还需要在 Windows PC 上安装 Feem 。(install Feem)安装后，在两台设备上打开Feem 。
- 在您的 Android 设备上，点击Feem应用程序中的(Feem)打开 WiFi Direct(Turn on WiFi Direct )滑块。这将激活特殊的WiFi Direct ad-hoc 热点供您的Windows设备连接。连接到此网络所需的密码将显示在右上角。
- 在您的Windows设备上，连接到由您的Android设备创建的临时(Android)WiFi网络（例如DIRECT-mH-Android）。您可以在Windows 设置(Windows Settings)菜单中执行此操作，或者按任务栏上的WiFi/Network icon 并从那里选择临时WiFi网络。(WiFi)
- 连接后，在您的 Windows PC 上打开Feem应用程序。(Feem)您的Android设备应列在左侧菜单中。您可以通过在Android上的(Android)Feem应用程序中选择您的 Windows PC 来以其他方式发送文件。在任一平台的列表中选择设备，然后选择或点击底部 的发送文件选项以开始发送文件。(Send File )
- 发送文件后，点击Android设备上的(Android)WiFi Direct(WiFi Direct is on )滑块以禁用WiFi Direct热点并结束连接。
将 Windows 10 电脑连接到其他设备(Connecting Windows 10 PCs to Other Devices)
顾名思义，在Windows 10中使用(Windows 10)WiFi Direct可以让您与其他设备直接连接。如果您想定期将文件从智能手机传输到 PC，那么您可能更喜欢使用内置的Your Phone 应用程序(Your Phone app)。
如果WiFi Direct不是一个选项，那么蓝牙(Bluetooth)是您独立点对点通信的下一个最佳选择。许多Windows 10电脑都内置了蓝牙(Bluetooth)，但您可以使用USB适配器使电脑具有蓝牙功能。(make a PC Bluetooth-capable)您只需要记住在尝试建立连接之前先打开蓝牙。(switch Bluetooth on)
What Is WiFi Direct in Windows 10 (And How to Use It)
Bluetooth is the gold standard for device-to-device file transfers and close-range communications, but it has a competitor that you might not have heard of: WiFi Direct.
What is WiFi Direct? This little-known alternative has been around for years but, unlike Bluetooth, you can use WiFi Direct for more than just file transfers.
Windows 10 has direct WiFi Direct support, but if you’re planning on using it, you’ll need to know what it’s good for (and whether it’s safe to use it or not). There are plenty of devices that support WiFi Direct (under various names), so if you want to know more about WiFi Direct in Windows 10, here’s what you’ll need to know.
What Is WiFi Direct?
WiFi Direct is a standard that allows the use of WiFi radio frequencies (typically 2.4GHz and 5GHz) to make direct, peer-to-peer connections with other devices. You don’t need an existing WiFi network to connect to, as the connection is made directly between two devices.
WiFi Direct works by enabling a software-generated access point on the host device, creating a temporary WiFi network in the process. WiFi Protected Setup (WPS) is then used to authenticate, with a push button or PIN code used to establish a connection. This allows for a seamless (yet secure) connection between the devices.
Like Bluetooth, you can use it to send files, share your screen with other devices, play games directly, share your internet connection, and more. It also plays a central part in other systems and communication standards, such as near field communication.
Other WiFi-specific brands, such as Miracast, also use WiFi Direct to communicate. While Miracast is its own standard, it builds upon the WiFi Direct technology to allow for secure screen mirroring.
Support for WiFi Direct is quite patchy, however. While it is fully supported in Windows 10 (depending on your device), Apple devices such as Macs, iPhones, and iPads use the proprietary AirDrop and AirPlay instead.
Modern Android devices (from Android 4.0 onwards) offer support for WiFi Direct, but you may need a third-party app to make full use of its functionality. It also has some support on certain smart TVs, game consoles, and other WiFi-capable devices.
Checking for WiFi Direct Support on your Windows 10 PC
If you want to use WiFi Direct as an alternative to Bluetooth, then you’ll be best served using a Windows 10 PC or laptop. Windows 10 offers full support for the WiFi Direct standard, but your internal WiFi chip (or external WiFi device) will need to support it.
If you want to check whether your Windows PC or laptop supports the WiFi Direct standard, then you’ll need to use the Windows PowerShell.
- To open a new PowerShell terminal, right-click the Start menu and select the Windows PowerShell (Admin) option.
- In the new Windows PowerShell window, type ipconfig /all and press Enter. A list of your network adapters and connections will be listed. Look through the list of adapters to find the Microsoft Wi-Fi Direct Virtual Adapter listed.
If Microsoft Wi-Fi Direct Virtual Adapter is listed, then your PC supports WiFi Direct connections. If it doesn’t, then you’ll need to attach a third-party USB WiFi device to enable support for it.
Connecting to Other WiFi Direct Compatible Devices
If your PC supports it, then you can connect to other WiFi Direct capable devices. To do this, you can use Windows’ search and discovery features to locate other WiFi Direct devices nearby.
- To do this, you’ll need to open the Windows Settings menu. Right-click the Start menu and select the Settings option.
- In the Windows Settings menu, select the Devices option. From there, you’ll need to select the Add Bluetooth or other device option.
- In the pop-up Add a device menu, you can select the type of device you want to connect to. Some WiFi Direct devices, for instance, are largely used for screen mirroring. To add one of these, select the Wireless display or dock option. Otherwise, select the Everything else option instead.
- A list of available devices nearby that your PC can connect to will appear next. WiFi Direct-capable devices will also appear, including smartphones, smart TVs, games consoles, and more. To connect to those devices, select the device listed.
- Once the device is connected, select the Done button to complete the connection.
- The device will then appear in your list of known devices in the Bluetooth & other devices menu in Windows Settings.
While this method should work for most WiFi Direct devices, there may be other methods you can use to connect, so consult the user manual for those devices for further information.
For instance, some devices that support the WiFi Direct standard will have their own always-on WiFi networks that you can connect to. If you had a HP printer or Sony smart TV, for instance, you could connect by joining the DIRECT-XX wireless network for that device.
Sending Files Using WiFi Direct
One of the best uses for WiFi Direct is for file transfers, especially if you have a large number of files. While you could use Bluetooth, transferring large files (or a large number of them) would take much longer than a WiFi Direct connection.
If you have an Android device, the best way to use WiFi Direct is by using the Feem app, which has Windows 10 and Android support. While WiFi Direct isn’t supported for iPhones and iPads, Feem does use an alternative method for file transfers on those platforms.
- To start, download and install the Feem app for your Android device. You’ll also need to install Feem on your Windows PC. Once installed, open Feem on both devices.
- On your Android device, tap the Turn on WiFi Direct slider in the Feem app. This will activate the special WiFi Direct ad-hoc hotspot for your Windows device to connect to. The password required to connect to this network will appear in the top-right corner.
- On your Windows device, connect to the temporary WiFi network created by your Android device (for instance, DIRECT-mH-Android). You can do this in your Windows Settings menu, or by pressing the WiFi/Network icon on your taskbar and selecting the temporary WiFi network from there.
- Once connected, open the Feem app on your Windows PC. Your Android device should be listed in the left-hand menu. You can send files the other way by selecting your Windows PC in the Feem app on Android instead. Select the device in the list on either platform, then select or tap the Send File option at the bottom to begin sending files across.
- Once the files have been sent, tap the WiFi Direct is on slider on your Android device to disable the WiFi Direct hotspot and end the connection.
Connecting Windows 10 PCs to Other Devices
As the name suggests, using WiFi Direct in Windows 10 allows you to make direct connections with other devices. If you want to transfer files from your smartphone to your PC regularly, then you may prefer to use the built-in Your Phone app instead.
If WiFi Direct isn’t an option, then Bluetooth is your next, best option for standalone, peer-to-peer communication. Many Windows 10 PCs have Bluetooth built-in, but you can make a PC Bluetooth-capable using a USB adapter. You’ll just need to remember to switch Bluetooth on first before you attempt to make a connection.
