计算WiFi带宽或WiFi信号强度

Calculate bandwidth of the WiFi or WiFi signal strength

本文关键字：WiFi 信号 带宽 计算      更新时间：2023-09-26

我想使用jQuery或JavaScript计算WiFi的带宽或WiFi信号强度。我知道我们可以在服务器端代码中计算强度，但我想在客户端计算。

查看这个网站，我认为它适合WiFi连接:

http://www.wiseloop.com/demo/javascript-bandwidth-tester

下面是加载图像时计算下载速度的示例:

var imageAddr = "http://www.tranquilmusic.ca/images/cats/Cat2.JPG" + "?n=" + Math.random();
var startTime, endTime;
var downloadSize = 5616998;
var download = new Image();
download.onload = function() {
  endTime = (new Date()).getTime();
  showResults();
}
startTime = (new Date()).getTime();
download.src = imageAddr;
function showResults() {
  var duration = (endTime - startTime) / 1000; //Math.round()
  var bitsLoaded = downloadSize * 8;
  var speedBps = (bitsLoaded / duration).toFixed(2);
  var speedKbps = (speedBps / 1024).toFixed(2);
  var speedMbps = (speedKbps / 1024).toFixed(2);
  alert("Your connection speed is: 'n" +
    speedBps + " bps'n" +
    speedKbps + " kbps'n" +
    speedMbps + " Mbps'n");
}

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