无线上网(WiFi)？你知道这一点并且每天都在使用它。蓝牙(Bluetooth)？您也知道这一点，并且经常使用它。如果您可以将两者的所有最佳功能结合起来会怎样？好吧，事实证明你可以，那就是WiFi Direct。您想了解更多关于什么是WiFi Direct以及(WiFi Direct)WiFi和WiFi Direct之间的区别吗？您(Are)是否想知道是否可以使用WiFi Direct连接到互联网，或者WiFi Direct是否与(WiFi Direct)WPS相同？别再看了，在本教程中，我们将向您解释什么是WiFi Direct技术以及WiFi Direct如何(WiFi Direct)作品：
什么是 WiFi 直连？
WiFi Direct 是一种允许计算机或智能手机等设备直接以无线方式相互连接的技术。(WiFi Direct is a technology that allows devices such as computers or smartphones to connect directly to each other wirelessly.) WiFi Direct使设备能够使用无线电建立直接通信，并使快速传输文件、打印、玩游戏甚至在其他设备上显示视频内容变得容易和简单。WiFi Direct基本上可以用于无线连接任何东西，而无需将您的设备连接到传统的无线网络。
为了更好地了解WiFi Direct是什么，以下是由创建和认证Wi-Fi和Wi-Fi Direct的实体(Wi-Fi Direct)Wi-Fi Alliance制作的演示视频：
WiFi和WiFi Direct有什么区别？
在WiFi Direct之前，有“常规” WiFi。你可能听说过这个叫做WiFi的东西（或Wi-Fi，无论你喜欢哪个，实际上并没有关于使用哪个的规定），而且你可能经常使用它，甚至是现在。WiFi是一种用途广泛的无线通信技术，但最广泛用于访问互联网。
日常用户使用WiFi(WiFi)最常见的方式是连接到无线路由器并通过此设备访问互联网。WiFi路由器是一种创建接入点 (AP)的物理设备，当您寻找要连接的网络时，您可以在智能手机或计算机上看到该接入点。你选择你想要的，如果需要，输入密码，然后tada，你就可以访问网络了。
Wi-Fi 直连徽标
但是在某些情况下，您不需要任何互联网，只想连接两台设备并在它们之间共享一些数据，例如发送文件、在打印机上打印内容或在远足时与朋友一起玩游戏。是的，我们知道，后者并不是一个很好的例子，尽管你可能想在晚上露营之前这样做。🙂但是你猜怎么着，我们已经知道有一种技术可以做到这一点：WiFi Direct！
因此，简而言之， Wi-Fi Direct(Wi-Fi Direct)和WiFi之间的主要区别在于：
- WiFi Direct直接在设备之间工作(WiFi Direct works directly between devices)，不需要路由器和传统的无线网络
- WiFi Direct 无法让您访问互联网(WiFi Direct doesn’t give you access to the internet)
WiFi Direct和蓝牙(Bluetooth)有什么区别？
在不使用其他硬件的情况下向附近的设备无线发送数据的需求并不是什么新鲜事。第一个也是最广泛使用的解决方案之一是蓝牙(Bluetooth)，它自 1998 年就出现了。蓝牙(Bluetooth)非常适合将外围设备连接到计算机（如鼠标或键盘）或使用无线耳机，因为这些不需要快速数据传输。蓝牙(Bluetooth)不是一项快速的技术，设置它也不是一件容易的事。
Wi-Fi Direct 与蓝牙
WiFi不同：它速度快，而且更容易配置。由于WiFi Direct建立在“常规”WiFi之上，因此它具有相同的优势：WiFi Direct 提供比蓝牙更快的速度和无线覆盖范围(WiFi Direct offers much faster speeds and wireless coverage than Bluetooth)。
WiFi 直连如何工作？
在开发WiFi Direct标准时，主要想法非常简单：使其易于设置，支持各种服务，并使其与任何其他WiFi连接一样快。第二个和第三个是不言自明的，因为WiFi Direct基于“常规” WiFi，所以它没有任何缺点。
WiFi Direct的工作方式相当简单：一台设备发现另一台设备，就像它发现无线网络一样，输入密码或按下WPS 按钮(WPS button)，瞧，设备已连接。无需设置可见性、匹配长数字代码或忍受蓝牙(Bluetooth)存在的任何问题。最重要的是，只有其中一个设备必须与WiFi Direct兼容。
在Android智能手机上使用 Wi-Fi Direct
本质上，当您通过WiFi Direct连接两台设备时，其中一台设备会创建一个类似于路由器的接入点，而另一台设备则连接到它。您不必手动操作；这一切都是自动的。可用功能因所连接的设备类型而异：您可以打印到无线打印机(print to a wireless printer)、将图片发送到数码相框、将文件从手机发送到计算机，或者在电视上从音乐播放音乐或电影播放器或手机。有相当多的可能性。
哦，关于密码：你可以忘记它们。WiFi Direct 依赖于WiFi 保护设置 (WPS) ，这是一种通过(WiFi Protected Setup (WPS))WiFi安全连接两个设备的简单方法。就像(Just)现代路由器一样，您只需输入屏幕上显示的数字或按下按钮，设备即可连接。
哪些设备支持 WiFi Direct？
第一家支持WiFi Direct的大公司是英特尔(Intel)：他们早在 2008 年就在其迅驰 2 平台上引入了新标准。两年后，网络行业的其他大公司纷纷效仿：Marvell、Atheros、Broadcom、Ralink和Realtek他们在 2010 年10 月推出了第一款支持(October 2010)WiFi Direct的产品——您计算机的WiFi卡很可能由这些制造商之一制造。这意味着，如果您有一台现代计算机或笔记本电脑，它可能支持WiFi Direct。
微软从 PC 上的(Microsoft)Windows 8开始支持该标准，并且所有Windows 10版本都有WiFi Direct。第一个支持WiFi Direct的Xbox是 2013 年发布的Xbox One 。
在移动领域，谷歌在(Google)Android 2.3中引入了WiFi Direct支持。Apple 的 iPhone 从 iOS 7 开始支持WiFi Direct，尽管它通常具有不同的名称，例如AirDrop或AirPlay。
还有许多其他支持WiFi Direct的设备，例如无线打印机或高级无线耳机。大多数智能电视(TVs)还支持WiFi Direct，其形式略有不同，使用名为 Miracast 的功能(feature called Miracast)，该功能只是基于WiFi Direct的无线标准。
您使用的是 WiFi 直连吗？
凭借其简单的设置、更远的范围和更高的传输速度，WiFi Direct是比蓝牙(Bluetooth)更好的选择，可在两个设备之间进行无线文件传输。设置(Setup)和范围也使其成为其他领域（如外围连接）蓝牙的绝佳替代品。(Bluetooth)您使用的是WiFi 直连(WiFi Direct)吗？做什么的？此外，如果您对WiFi Direct(WiFi Direct)有任何疑问，请在下面的评论部分告诉我们。
What is WiFi Direct? How do you use WiFi Direct? -
WiFі? You know that and use it evеry day. Bluetooth? You know that too and also use it quite often. Whаt if yоu could combine all the best feаturеs of the two? Well, it turns out you can, and that’s WiFi Direct. Do you want to know more about what WiFi Direct is, and what’s the differencе between WiFi and WiFi Direct? Are you wondering whether you can υse WіFi Direct to connect to the internet or whеther WiFi Direct is the same as WPS? Look no more, as in this tutorial, we’re going to explain to you what the WiFi Direct technology is аnd how WiFi Direct works:
What is WiFi Direct?
WiFi Direct is a technology that allows devices such as computers or smartphones to connect directly to each other wirelessly. WiFi Direct enables devices to establish direct communication using radio and makes it easy and simple to transfer files at fast speeds, print, play games, or even display video content on other devices. WiFi Direct can be used for connecting basically anything wirelessly, without the need to connect your devices to a traditional wireless network.
To get a better understanding of what WiFi Direct is, here’s a presentation video made by Wi-Fi Alliance, the entity that created and certifies Wi-Fi and Wi-Fi Direct:
What is the difference between WiFi and WiFi Direct?
Before WiFi Direct, there was “regular” WiFi. You have probably heard about this thing called WiFi (or Wi-Fi, whichever you like, there is really no rule on which one to use), and you probably use it quite a lot, maybe even now. WiFi is a wireless communication technology with lots of uses, but it is most widely used for accessing the internet.
An everyday user’s most common way of meeting WiFi is by connecting to a wireless router and accessing the internet through this device. The WiFi router is a physical device that creates an access point (AP), which you can see on your smartphone or computer when you’re looking for a network to connect to. You select the one you want, enter a password if required, and tada, you’re all set to access the web.
Wi-Fi Direct logo
But there are cases when you don’t need any internet, just want to connect two devices and share some data between them, like send a file, print something on a printer, or play a game with a friend while hiking. Yes, we know, the latter is hardly a good example, although you might want to do that in the evening before sleeping in a camping. 🙂 But guess what, we already know that there is a technology just for that: WiFi Direct!
So, to put it shortly, the main differences between Wi-Fi Direct and WiFi are that:
- WiFi Direct works directly between devices, without needing a router and a traditional wireless network
- WiFi Direct doesn’t give you access to the internet
What is the difference between WiFi Direct and Bluetooth?
The need to wirelessly send data to nearby devices without using other hardware is not a new thing. One of the first and most widespread solutions was Bluetooth, which has been around since 1998. Bluetooth is awesome for connecting peripherals to a computer (like mice or keyboards) or using a wireless headset, as these don’t require fast data transfers. Bluetooth is not a fast technology, and setting it up is not hassle-free either.
Wi-Fi Direct vs. Bluetooth
WiFi is different: it has high speeds, and it’s much easier to configure. As WiFi Direct is built upon “regular” WiFi, it has the same advantages: WiFi Direct offers much faster speeds and wireless coverage than Bluetooth can ever deliver.
How does WiFi Direct work?
When developing the WiFi Direct standard, the main ideas were quite simple: make it easy to set up, have it support all kinds of services, and make it just as fast as any other WiFi connection. The second and third are self-explanatory since WiFi Direct is based on “regular” WiFi, so it doesn’t have any drawbacks.
The way WiFi Direct works is rather simple: one device discovers the other just like it would discover a wireless network, enter a password or push a WPS button and voilá, the devices are connected. No need to set up visibility, match long numeric codes or put up with any of the problems Bluetooth has. And to top it all, only one of the devices has to be compatible with WiFi Direct.
Using Wi-Fi Direct on an Android smartphone
Essentially, when you connect two devices via WiFi Direct, one of them creates an access point similar to a router, and the other device connects to it. You don’t have to do it manually; it’s all automatic. The available features vary, depending on what kind of devices are connected: you can print to a wireless printer, send pictures to a digital picture frame, send files from a phone to a computer, or play music or movies on a TV from a music player or phone. There are quite a lot of possibilities.
Oh, and about passwords: you can forget about them. WiFi Direct relies on WiFi Protected Setup (WPS), which is a simple way to connect two devices via WiFi securely. Just like with modern routers, you only have to enter a number displayed on the screen or press a button, and the devices connect.
What devices support WiFi Direct?
The first big company to support WiFi Direct was Intel: they introduced the new standard on their Centrino 2 platform back in 2008. Two years later, other big players of the networking industry followed: Marvell, Atheros, Broadcom, Ralink, and Realtek all launched their first WiFi Direct-enabled products in October 2010 – your computer’s WiFi card is likely made by one of these manufacturers. That means that if you have a modern computer or laptop, it probably supports WiFi Direct.
Microsoft supports the standard since Windows 8 on PC, and all Windows 10 versions have WiFi Direct. The first Xbox to support WiFi Direct was Xbox One, released in 2013.
In the mobile world, Google introduced WiFi Direct support in Android 2.3. Apple’s iPhones support WiFi Direct since iOS 7, although it usually bears different names such as AirDrop or AirPlay.
There are also many other devices that support WiFi Direct, such as wireless printers or premium wireless headphones. Most smart TVs also support WiFi Direct in a slightly different form, using a feature called Miracast that’s just a wireless standard based on WiFi Direct.
Are you using WiFi Direct?
With its simple setup, longer range, and much higher transfer speeds, WiFi Direct is a better option than Bluetooth for wireless file transfers between two devices. Setup and range also make it an excellent alternative for Bluetooth in other areas, like peripheral connection. Are you using WiFi Direct? What for? Also, if you have any questions about WiFi Direct, let us know in the comments section below.
