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在浏览器里画出户型、选择墙体材质、放下路由器点位，按 ITU-R P.1238 室内传播模型算出全屋接收场强并渲染成热力图。支持 2.4 / 5 GHz 切换、复式与别墅的多层楼建模、楼梯井挑空穿透，以及撤销重做与户型模板。完全免费，纯浏览器运行，户型数据不上传。
Draw your floor plan in the browser, pick wall materials, drop access points, and get a whole-home RSSI heatmap computed with the ITU-R P.1238 indoor propagation model. Supports 2.4 / 5 GHz, multi-floor duplex and villa modelling, stairwell voids, undo/redo and layout templates. Free, runs entirely client-side, nothing is uploaded.
覆盖规划指南（中文）
路由器放哪里信号最好？4 种常见摆位对比
路由器放客厅、弱电箱还是卧室？按 ITU-R P.1238 模型对比 4 种常见摆位
2.4G 和 5G WiFi 区别：该用哪个频段？
2.4GHz 和 5GHz 差在哪？用同一模型对比两个频段的穿墙衰减与覆盖半径，解释
承重墙挡 WiFi 吗？各种墙体衰减 dB 对照表
木门、玻璃、砖墙、混凝土承重墙各衰减多少 dB？给出 2.4G/5G 双频对照表，解
Mesh 组网点位规划：节点放多远合适？
Mesh 节点该放多远、几个够用、有线回程还是无线？用重叠区 −65 dBm 原则给
复式别墅 WiFi 方案：多层楼信号怎么布
复式、别墅的 WiFi 怎么规划？说清混凝土楼板 18 dB 的实际影响、楼梯井挑空
WiFi 信号强度 dBm 标准：-70dBm 算好吗？
RSSI 多少算正常？给出 dBm 分档对照表，说明为什么信号格数不可靠，以及如何用
Wi-Fi 7 与 6GHz 穿墙衰减实测：真有必要买 6G 路由器吗？
Wi-Fi 7 和 6GHz 带来 320MHz 超大频宽，但穿墙衰减有多大？用 I
全屋光纤 FTTR 与 AC+AP 组网规划：86 面板放几个合适？
FTTR 和 AC+AP 选哪个？86 型面板 AP 为什么发热、离地 30cm 为
2026 双十一全屋 WiFi 组网避坑与硬件选购指南
双十一买路由器别只看价格：弱电箱摆放、单台硬扛大户型、盲目追 WiFi7、数天线根数
Coverage Planning Guides (English)
Best Router Placement: 4 Common Spots Compared
Living room, media cabinet or the wiring box? Compare four router positions with the ITU-R P
2.4GHz vs 5GHz WiFi: Which Band Should You Use?
How much do 2.4GHz and 5GHz really differ? Compare wall loss and coverage radius under one m
Does a Load-Bearing Wall Block WiFi? dB Loss Chart
What do wood, glass, brick and reinforced concrete cost in dB? A 2.4/5GHz wall loss chart, p
Mesh Node Placement: How Far Apart Should They Be?
How far apart should mesh nodes sit and how many do you need? A calculable spacing standard
Duplex and Villa WiFi: Planning Multi-Storey Coverage
What an 18 dB concrete slab really costs, why a stairwell void beats it by 16 dB, and how ma
WiFi Signal Strength dBm Chart: Is −70 dBm Good?
What RSSI counts as normal? A dBm banding chart, why signal bars are unreliable, and how to
Wi-Fi 7 and 6GHz Wall Attenuation: Is a 6GHz Router Worth It?
Does Wi-Fi 7 6GHz penetrate walls? We compare 2.4G, 5G and 6GHz attenuation with ITU-R P.123
Whole-Home FTTR vs AC+AP: Placement and Heat Management Guide
Should you pick FTTR or PoE AC+AP? Why do in-wall panel APs overheat, how does mounting heig
2026 Singles' Day Whole-Home WiFi Guide: Pitfalls & Router Picks
Don't just chase discounts on Singles' Day: weak-box placement, single-router large homes, b
