降低Wi-Fi信号强度 [英] Reduce Wi-fi signal strength

问题描述

我正在开发一个带有raspberry pi 3和windows IoT的项目。我正在使用raspberry pi 3，tenda无线网卡。我必须通过他们的wifi连接找到进入指定房间的人。我可以减少房间内的wifi（传输功率或
无线电或其他任何东西）的范围。

I am working on a project with raspberry pi 3 and windows IoT. I am using raspberry pi 3, tenda wireless card. I have to find the person entering a specified room through their wifi connectivity. Can I reduce the range of the wifi (Transmission power or radio power or whatever it is) within a room.

推荐答案

你的Wi-如果你降低传输功率那么多，Fi网络将受到很大影响。

Your Wi-Fi network will suffer greatly if you lower transmission power that much.

Wi-Fi的设计假设任何发射机都能听到任何其他发射机。 不一定要接收他们的消息，而是要知道另一个网络参与者正在传输。 如果我在Wi-Fi网络上，当其他人在该网络上通话时，我需要能够告诉
，这样我就不会在他们的信号之上传输，这会破坏两种传输。

Wi-Fi is designed on the assumption that any transmitter is able to hear any other.  Not necessarily to receive their messages, but to know that another network participant is transmitting.  If I am on a Wi-Fi network, I need to be able to tell when someone else is talking on that network, so that I do not transmit on top of their signal, which would ruin both transmissions.

有更简单的方法可以进行占用检测。  Wi-Fi并非旨在以您想要使用它的方式使用，它会在每一步都与您抗争。

There are easier ways to do occupancy detection.  Wi-Fi is not designed to be used in the way you are wanting to use it, and it will fight you every step of the way.

它可能是可能的，但你会必须降低网络上每个节点的传输功率，这将使您的Wi-Fi网络停止运行。

It probably is possible, but you'll have to lower transmission power on every node on the network, which will make your Wi-Fi network cease to function.

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