Application of Acrel IoT Energy Management Systematic Solution in certain Factory of Malaysia
1.應用場景Application Scenario
對工廠的三相用電設備的用電量進行采集并上傳至系統， 從而使用戶能夠實現在PC上就能通過IoT EMS系統查看設備用電情況。
Customers need to collect the basic energy consumption data and upload it to management system so that they can realized real-time and remote data monitoring using their PC.
2.技術選型 Technical Selection
2.1三相回路電壓為415Vac L-L，額定電流不超過80A AC，三相四線接線，電表方面選型三相帶RS485（MODBUS-RTU）通訊的電表ADL400。
Rated voltage of 3-phase monitoring circuits is 415Vac L-L while the rated current is below 80A AC, thus selection of metering devices will be ADL400 3-phase energy meter with RS485 communication of MODBUS-RTU protocol
2.2工廠經確認后WiFi覆蓋條件較好，頻段為2.4GHz，方便提供220Vac供電，網關選用AWT100-WiFi搭配POW模塊。支持廣播自動抄表以便后續下行設備的添加。該網關上行為4GHz WiFi，采用MODBUS-RTU over TCP的透傳通訊協議。下行為RS485通訊，采用MODBUS-RTU協議，從而與ADL400配合對數據進行上傳至云服務器通向系統。
After discussing with the customer, factory is with stable 4GHz WiFi coverage and signal,and a power supply of 220Vac is preferable. So, for the gateway parts, we select AWT100-WiFi which own auto-broadcasting function that can ease the later adjustment with subsequent ADL400. Also, AWT100-WiFi is paired with AWT100-POW power module.Other than that, since AWT100-WiFi is with upstream of 2.4GHz WiFi using MODBUS-RTU over TCP protocol and downstream of RS485 using MODBUS-RTU protocol to be paired with ADL400 for energy consumption data uploaded to cloud server and finally to the IoT System.
2.3測試階段服務器使用我司已經租用的亞馬遜云服務器以節省客戶預算。
For pilot project phase, cloud server is highly recommended to use our company’s cloud server which has been rent on Amazon to save the customers’ budget on testing phase.
2.4根據需求系統選用IoT EMS系統，并提供3個月試用以便客戶測試。
According to the request, IoT Energy Management System will be the most appropriate one and can provide 3-month free trial for testing use.
3.初期方案架構Pilot Project Solution Structure
4.后期方案方向 Plan after Pilot Project
若初期方案測試成功，后期方案方向為：
If pilot project proved to be successful, later plan should be as below:
4.1云托管方案：綜合考慮云服務器租用成本以及點位數量不多的情況，云方案推薦為系統軟件選用托管，云服務器依舊使用我司的云服務器。硬件設備層無需改動，只需后續增訂ADL400三相電能表，若點位數量需求較多，根據情況配套增訂AWT100-WiFi網關。
Cloud Hosting Service Solution: Considering about the comprehensive cost of renting the cloud server and the amount of monitoring circuits, deployment of cloud IoT Energy Management System should be paired with hosting service. In this situation, customer don’t need to afford the rent of cloud server and will use our own cloud server. Also, for the hardware of this solution, no change need be done just like in the pilot project solution structure. Customer only need to order more ADL400 3-phase energy meter and maybe paired AWT100-WiFi gateway according to the number of subsequent request.
4.2本地買斷方案：若客戶對數據保密性比較有想法，后期推薦方向為IoT系統買斷服務，服務器架設本地服務器并搭配工業交換機與UPS電源。硬件設備層電表依舊推薦ADL400，特殊型號ADF400L不推薦使用，原因是在三相四線接線為直通式接線而非互感器接入時，ADF400L的測量模塊需求數量較多，無法減少成本。網關方面根據后期點位數量增配AWT100-CE或者APort100.
Local Buy-out Service Solution: If request from customers for data safety and Confidentiality is much more higher. The buy-out service of IoT Energy Management System to be paired with a Local Server will be the best choice. Yet the solution need to do a lot of change in hardware like. First, deploying of local server need to be paired with industrial switch and UPS. Second, for energy meter, ADL400 is still more recommendable.Since the special module, ADF400L Multi-circuit energy meter with built-in Ethernet communication won’t save much budget on the application of 3-phase wiring via direct connection instead of via CTs. At last, gateway need to be changed from AWT100-WiFi to AWT100-CE or Aport100 according to the amount of subsequent request.
5.后期方案架構 (僅指采用本地方案的情況下) Late-stage Solution Structure （For local solution only）
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