無線基地台與場地覆蓋範圍估算器
計算您的場地所需的無線基地台、交換器數量以及 PoE 預算。
估算您的存取點需求
1. Venue area size
2. Structural layout & wall material
Select wall type to factor in RF signal attenuation loss.
3. Client device density
Estimate client density in peak usage areas.
Approx. 1 device per 50 sq ft
4. Bandwidth activity profile
Select bandwidth demand per active device.
5. WiFi hardware generation
Select the WiFi standard of planned access points.
Current enterprise standard with OFDMA and MU-MIMO for dense client environments.
Coverage signal calculation requires 4 APs for 7500 sq ft. High-density capacity calculation requires 3 APs to serve 150 concurrent client devices using WiFi 6 / 6E. Final recommendation: 4 APs.
Hardware vendor deployment notes
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Understanding signal attenuation and capacity limits
Wireless networks are constrained by both physical RF coverage and client device capacity limits. In large open spaces, a single high-power access point can project a signal over a wide radius, but a high concentration of connected smartphones and laptops will saturate radio channels long before signal coverage degrades. This calculator models both constraints simultaneously and recommends the higher access point count to eliminate network congestion.
精準的網路容量規劃
規劃無線覆蓋範圍需要模擬物理障礙物、使用者密度和應用程式頻寬需求。此計算器可協助估算高效能訪客或企業網路所需的設備。
模擬的關鍵參數
- 訊號穿透石膏板、磚牆、玻璃和混凝土牆的衰減。
- 標準辦公室、高密度旅宿和體育場環境的裝置密度限制。
- 總 Power over Ethernet (PoE) 供電預算與交換器連接埠需求。
Signal attenuation benchmarks by building material
Radio frequency signals degrade as they penetrate structural barriers. Use these attenuation values to refine coverage estimates when deploying access points across multi-room facilities.
| Building material | Frequency band | Signal loss (dB) | Typical coverage radius |
|---|---|---|---|
| Drywall / Office Partition | 2.4 GHz / 5 GHz | 1.5 - 3 dB | 2,000 - 3,000 sq ft (180 - 280 sq m) |
| Clear Window Glass | 2.4 GHz / 5 GHz | 2 - 4 dB | 2,000 - 2,500 sq ft (180 - 230 sq m) |
| Solid Brick Wall | 2.4 GHz / 5 GHz / 6 GHz | 6 - 10 dB | 1,000 - 1,400 sq ft (90 - 130 sq m) |
| Reinforced Concrete / Lift Shaft | 2.4 GHz / 5 GHz / 6 GHz | 12 - 18 dB | 600 - 900 sq ft (55 - 85 sq m) |
Power over Ethernet (PoE) switch planning
Modern WiFi 6, 6E, and WiFi 7 enterprise access points feature multi-gigabit uplinks and Bluetooth radios that require high power draw from network switches. Matching access points with the correct PoE standard prevents random access point reboots during peak client loads.
關於 WiFi 基地台規劃的常見問題
一台 WiFi 基地台可以覆蓋多少平方英尺？
在設有石膏板或玻璃隔間的開放式室內環境中，一台標準企業級基地台的覆蓋範圍介於 1,500 至 3,000 平方英尺（140 至 280 平方公尺）之間。在具有實心磚牆或混凝土牆的密集建築佈局中，由於 RF 衰減，每台基地台的有效覆蓋範圍會減少至 800 至 1,200 平方英尺。
如何計算高密度場地的基地台密度？
高密度基地台計算優先考慮同時連線的用戶端容量，而非實體覆蓋面積。在串流需求高的環境（如體育場或禮堂）中，建議每 15 至 30 台作用中裝置配置 1 台基地台；對於標準辦公室或咖啡廳，則每 40 至 50 台裝置配置 1 台基地台。
覆蓋導向與容量導向的 AP 規劃有何不同？
覆蓋導向規劃是根據實體空間和 RF 訊號範圍來計算基地台數量，以消除訊號死角。容量導向規劃則是根據連線的用戶端裝置總數以及每台裝置所需的頻寬吞吐量來計算基地台數量。企業級設計一律採用這兩個計算值中的較高者。
企業級 WiFi 6 和 WiFi 7 基地台需要多少 PoE 交換器供電預算？
標準 WiFi 5 基地台使用 PoE（802.3af，每埠最高 15.4W）。企業級 WiFi 6 和 6E 基地台則需要 PoE+（802.3at，每埠最高 30W）以支援 Multi-Gigabit 射頻和 Bluetooth LE 射頻。配備 4x4 或 8x8 MU-MIMO 射頻的先進 WiFi 7 基地台可能需要 PoE++（802.3bt，每埠最高 60W）。
牆壁材質如何影響 WiFi 訊號範圍？
石膏板造成的訊號衰減極小（1.5 至 3 dB 損耗），實心磚牆會造成中度衰減（6 至 10 dB 損耗），而鋼筋混凝土或電梯井則會造成嚴重衰減（12 至 18 dB 損耗）。嚴重衰減會大幅縮減基地台的覆蓋面積。
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