‘I found an equation which approximates the behaviour of high-frequency electromagneticwaves such as Wi-Fi, and tried to solve it by placing a virtual router in the floor plan of my flat.After crunching numbers for a few minutes I was able to generate maps of Wi-Fi signalstrength inside the flat, showing poor signal near my computer.’
“我发现了一个方程式,它能计算出WiFi这类高频电磁感应信号的运动轨迹,我在公寓地板上设置了一个虚拟路由。在测试一段时间的信号之后,我就能够绘制出WiFi信号在公寓内强弱的图表,发现电脑旁边较弱的信号。
By showing how weakened the signal can be when it moves across the flat, Mr Cole found thatno matter where his router was placed at one side of the flat, there would always be blackspotselsewhere. Instead, he suggests that the only solution to ensure as few blackspots as possibleis to place the router in the middle of the flat。
通过移动虚拟路由器的位置,可以看到信号强弱的变化。科尔发现无论将路由器放在公寓的哪一边,其他地方都会有盲点。因此,他觉得尽可能减少盲点的最佳方式就是把路由器放在公寓中间。
‘There is also some reflection of the signal around corners, but engineers tell me reflectionsare bad too. In my case, the best position was as central as possible, preferably near opendoorways. He says he hasn’t tried any physical tests of the simulation yet, but has been givensuggestions by commenters on his website. There have been many other helpful commentswhich will no doubt improve the methodology in the future, and a surprising number of peopleasking for an app to test their own houses or offices, so there's plenty of work to do.’
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2020-09-15
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