安科瑞  陳聰(cōng)  周(zhōu)潔(jié)

1. 應(yīng)用場景Application Scenario

  對工廠(chǎng)的三相用(yòng)電設備的用(yòng)電量進行采集並上(shàng)傳(chuán)至係統， 從(cóng)而使用(yòng)戶能夠(gòu)實(shí)現在PC上(shàng)就(jiù)能通過(guò)IoT EMS係統查看(kàn)設(shè)備用(yòng)電情況(kuàng)。

  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(jì)術選型 Technical Selection

  2.1三(sān)相(xiāng)回路電壓(yā)為(wéi)415Vac L-L，額定電流(liú)不超過(guò)80A AC，三相(xiāng)四(sì)綫接綫，電(diàn)表方(fāng)麵選型(xíng)三(sān)相(xiāng)帶(dài)RS485（MODBUS-RTU）通訊(xùn)的(dí)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(gōng)廠(chǎng)經(jīng)確認(rèn)後WiFi覆蓋條(tiáo)件較好(hǎo)，頻(pín)段(duàn)為(wéi)2.4GHz，方便提(tí)供220Vac供電，網(wǎng)關選用AWT100-WiFi搭(dā)配POW模塊。支(zhī)持廣播自動抄表(biǎo)以便後續下(xià)行設(shè)備的添(tiān)加。該網關(guān)上(shàng)行為(wéi)4GHz WiFi，采用(yòng)MODBUS-RTU over TCP的透傳(chuán)通訊(xùn)協議(yì)。下(xià)行為RS485通訊(xùn)，采用MODBUS-RTU協(xié)議(yì)，從而與ADL400配(pèi)合(hé)對數據(jù)進行(háng)上(shàng)傳至(zhì)雲(yún)服務(wù)器(qì)通向(xiàng)係(xì)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(shì)階(jiē)段(duàn)服(fú)務(wù)器使用我司(sī)已經(jīng)租(zū)用(yòng)的(dí)亞(yà)馬(mǎ)遜(xùn)雲服務(wù)器以節(jié)省客戶(hù)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(jù)需求係統選用IoT EMS係(xì)統，並(bìng)提供3個(gè)月(yuè)試用(yòng)以(yǐ)便(biàn)客戶(hù)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(jià)構(gòu)Pilot Project Solution Structure

  4. 後期方案(àn)方向 Plan after Pilot Project

  若初(chū)期(qī)方案測(cè)試(shì)成功(gōng)，後期(qī)方案方(fāng)向(xiàng)為：

  If pilot project proved to be successful, later plan should be as below:

  4.1雲托管(guǎn)方案(àn)：綜合考慮雲(yún)服(fú)務器(qì)租用成本(běn)以(yǐ)及(jí)點(diǎn)位數(shù)量(liáng)不多的情(qíng)況，雲方案推(tuī)薦為係統軟件選(xuǎn)用(yòng)托(tuō)管，雲服(fú)務器依舊使用(yòng)我司的(dí)雲(yún)服(fú)務(wù)器(qì)。硬件設備層無需(xū)改(gǎi)動，隻(zhī)需後續(xù)增訂(dìng)ADL400三相電能表，若點位數量需(xū)求(qiú)較(jiào)多，根據情況配(pèi)套(tào)增(zēng)訂(dìng)AWT100-WiFi網關(guān)。

  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(ruò)客戶(hù)對(duì)數(shù)據保密性(xìng)比較(jiào)有(yǒu)想法(fǎ)，後(hòu)期(qī)推(tuī)薦方向為(wéi)IoT係(xì)統(tǒng)買斷(duàn)服務(wù)，服(fú)務器(qì)架(jià)設(shè)本地(dì)服務(wù)器並搭配(pèi)工(gōng)業(yè)交(jiāo)換機(jī)與UPS電(diàn)源。硬(yìng)件(jiàn)設備(bèi)層(céng)電(diàn)表(biǎo)依舊(jiù)推(tuī)薦ADL400，特殊型(xíng)號ADF400L不推(tuī)薦使(shǐ)用(yòng)，原因是在(zài)三相四綫(xiàn)接綫(xiàn)為(wéi)直通(tōng)式接(jiē)綫而(ér)非互感(gǎn)器接入時(shí)，ADF400L的(dí)測量模塊(kuài)需求(qiú)數量較(jiào)多(duō)，無(wú)法(fǎ)減(jiǎn)少成本(běn)。網關方麵根據(jù)後期點位數量(liáng)增(zēng)配AWT100-CE或(huò)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. 後(hòu)期方(fāng)案架(jià)構 (僅指(zhǐ)采用本(běn)地方(fāng)案(àn)的情(qíng)況下) Late-stage Solution Structure （For local solution only）