Major Targetting Application Scenario
The major targetting application scenario for Acrel Online Preaid Solution will be as following: (1)Residential Houses For residential houses all over the country, we will normally use a flat or step rates for billing they electricity usage and make a prepaid control logic applied for such scenario by utility side. Also, one of the biggest issue for residential houses scenario is wired communication will be normally hard to deploy and maintanance in the late stage which means a wireless solution might be better.
What can Acrel Online Prepaid Solution do?
A complete electricity online prepaid solution could realize the function below (1)Online WEB Platform Electricity Vending via Administrator&Online Mobile APP Auto-vending Utility company could set Administrator office in different region and use Acrel Prepaid&Postpaid System Platform for selling the electricity online. Or could also integrate Acrel Prepaid&Postpaid APP [designed for end power user] with local online payment methods for doing a Online APP Electricity Vending. [End power user use mobile APP to toppping up electricity themselves.] (2)Auto-generated Energy Report and Electricity Bill End power user could check their daily, monthly energy consumption and their electricity balance credit by using Acrel Prepaid APP. (3)Manage End Power Users Account and or other ADMIN System Function for Utility Side Utility or power selling company could create, manage the all the “user account” for their end power user to realize remote account management, remote load on-off control, remote metering reading function and etc. All the operation will be done on Acrel Cloud Prepaid Platform (this platform designed and opened to utility or power selling company only) (4)Set Multi-rate/TOU Electricity Price according to your country’s billing Policy Utility or power selling company could set electricity price for each kwh used by end power user, different electricity price rate setting like flat rate, step rate or multi-tariff will be all avaible. (5)Low Balance Credit Alarm Setting for reminding of Topping Up the Electricity in time A low balance alarm will be sent to end power user when their remain balance was lower that a certain threshold, form like by sending SMS or APP warning. This threshold could be set on Acrel Cloud Prepaid Platfor by utility or power selling company.
GIS Analyzing
•Utility side could manage all the project/residential houses position all over the country. •Utility side could manage all the devices that connected to Acrel Cloud Prepaid&Postpaid System to know where these devices are located and which house was monitored by this devices. •Utility side could receive all kinds of alarm including devices off-line alarm for example for checking the working status of the devices in countrywide project.
•GIS Analysing and Command Interface
•Write in Project/Building Logistic Location Information
Vendor&Topping up Logic – Online WEB Platform Electricity Vending via Administrator(1)Utility Side set administrator office for certain region to do the Online Electricity Vending by using WEB based system platfomr. (2)Administrator create “User Account” for a unique End Power User of certain building/room. (3)Administrator bond “User Account” to a certain building/room and then bind to a certain postpaid energy meter. (4)End Power User of certain building/room contact administrator office, do the payment according to their monthly electricity bills. [monthly electricity bills will be issued to end power user via SMS, E- mail, mobile Application and etc.] (5)Administrator operate Acrel Cloud Prepaid&Postpaid System to recharging the certain “User Account” after receiving the payment from End Power User which already bound to certain “User Account”.
Vendor&Topping up Logic – Online Mobile APP Auto Vending•The basic binding logic is Prepaid Energy Meter (with unique SN Code) bind to a certain “Room” then this certain room bind to a certain “User”. All these binding operation could be done on Acrel Cloud Prepaid WEB System by utility company.
•End Power User use the “User Account” created by Acrel Prepaid WEB to login in Prepaid APP. They could do the online payment using this APP.
•Once End Power User submit topping up request, will rediect to a 3rd party payment URL (done by API), they will finish the payment in 3rd party payment methods and once finished, will send a call back to Acrel Prepaid APP.
•Acrel Prepaid&Postpaid APP [End Power User Ver.] will further issue recharge command to Acrel Prepaid WEB [Administrator Ver.] according to this call back (including recharging result, user account info, topping up amount and etc.) So that Acrel Prepaid WEB will automatically topping up for certain “User Account” and “Room bound with unique prepaid energy meter”. 
•System issue Monthly Electricity Bills to End Power User
•Customized Monthly Electricity Bills
•Project&User Account Management
•Write in Project&User Account Information
Remote Control Logic – Prepaid&Postpaid Control
For remote switch on/off control of circuit’s CB (circuit breaker), basic control logic was as below [pic 6.1]: •Prepaid Control: The the balance credit of certain house is lower than 0, will automatically trigger a switch-off control command and issue to ADL100-EYNK/4GHW •Postpaid Control: Administrator use Acrel Cloud Prepaid&Postpaid System, enter the “room mangement” interface, and issue “force closing/switch on” or “force opening/switch off” command to control the on or off status of circuit’s Circuit. [pic 6.2] •ADL100-EYNK/4GHW receive the control command via 4G communication. •ADL100-EYNK/4GHW energy meter has built-in magnetic holding relay. Once the energy meter receive the “switch on” or “switch off” control command, this will trigger its magnetic holding relay to switch on or switch off the circuit’s CB respectively. Note: Control mode of ADL100-EYNK/4GHW could be remotely changed from platform between prepaid control mode and postpaid control mode.
Illustration of Remote Control Logic
Administrator use Acrel Cloud Prepaid&Postpaid System to issue “Control Command”
System Platform Security
•Acrel Cloud Prepaid&Postpaid System got a IEC 27001:2013 certification for approving the system security level on information security management of design, developement of electrical meters and etc. •For safety of data transmission between Acrel ADL100-EYNK Prepaid Energy Meter and Acrel Cloud Prepaid&Postpaid System. Normally use the AES, SSL or other types of data encrption methods. •Cloud Server recommend to use private cloud server for safe and stable data storage. •For other information about data security, kindly contact Acrel Software Department for more information.
Actual Scenario Example
•There are 32800 separate residential houses all over the country powered by mains supply needed to be monitored. And 1 Transformer distribute to about 200 residential houses within 1 km. •Each house has 1 main circuit 1-phase needed to be monitored and billed by online Acrel Cloud Electricity Prepaid&Postpaid System. System could be accessed by PC or Mobile Phone. •All 1-phase prepaid energy meters will be of complete separate installation so impossible for wired RS485 Comms. Also for the place that we gonna install the energy meter, they are covered by stable 4G signal. •Each Prepaid Energy Meter will install 1 pcs 4G SIM card from local 4G service provider for 4G data upstream.Devices Deployment Plan
Residential Houses #1 [For End Power User #1]: – 1* ADL100-EYNK/4GHW 4G 1 -phase Prepaid&Postpaid Energy Meter [for monitoring House #1]Residential Houses #32800 [For End Power User #32800]: – 1* ADL100-EYNK/4GHW 4G 1-phase Prepaid&Postpaid Energy Meter [for monitoring House #32800]
Communication Structure&Logic
•4G Communication could be served as one of the final data upstream methods by sending the data to cloud server deployed in Internet so that Acrel IoT System could be interact with these data collected by bottom metering devices like Energy Meter •ADL100-EYNK/4GHW support upstream of 4G communication based on MQTT and MODBUS- TCP which make it possible to directly communication with Acrel Online Prepaid&Postpaid System without using a extra 4G IoT gateway. •Each ADL100-EYNK/4GHW has a 4G SIM card tray for installing of the 4G SIM card which could be bought from your local 4G service provider. •By API between Acrel Online Prepaid&Postpaid System and 3rd party Payment Software or Payment Methods, we could realize also remote automatical On-line Payment.
Overall Schedule to Realize Online Payment
•Buy sample devices from Acrel to test the devices on Acrel Platform and Acrel rented cloud server first for testing some basic Acrel Prepaid System Function and Off-line payment. [In this stage, Acrel System provide 3-month free trail, and will use Acrel rented cloud server] •After the testing stage, customer need to buy-out Acrel Prepaid System for permanent usage and rent their our cloud server under the instruction of Acrel Technical Group. Once bought both the buy-out service and rent a own cloud service, Acrel software team will deploy Acrel Prepaid System on customer’s rented cloud server. [Some OEM and customization of Buy-out service of Acrel Prepaid System was available like changing the Logo of system and access address of system] •Once software deployed successfully, Acrel technical group assist the customer to first move already bought Acrel hardware devices like prepaid energy meter and IoT gateway from Acrel platform&server to cusomter’s platform&server by changing the configuration of IoT gateway like Server address, server port changing. •Once Platform&Server movement success, will proceed for API between Prepaid System and customer’s own 3rd party payment software. To realize a actual Online payment. Will set a API discussion group for this and customer side need to have people who know about API integration. (Acrel Side could provide API protocol in advance for a preview)
Overall API Flow Chart
Hardware Devices Overview [Wireless Prepaid&Postpaid Energy Meter ]Model 1: ADL100-EYNK/4GHW 4G Prepaid&Postpaid 1- phase Energy Meter -Communicaiton: 4G [MQTT, MODBUS-TCP]; RS485 [MODBUS-RTU] -Monitoring: Up to 1 circuits [AC Metering] -Control Mode: Prepaid&Postpaid Control Model -Multi-tariff/TOU Function: 4 tariff rates and etc. -Rated Voltage: 220~264Vac L-N -Rated Current: 10(60)A AC -Certificate&Standard: CEAcrel Single-phase Prepaid&Postpaid Energy Meter ADL100-EY Acrel IoT Cloud Prepaid System (Partail Introduction)Acrel IoT Energy Monitoring System could be access in 2 different ways: -Access through WEB on your computer. Access port: https://iot.acrel-eem.com/ -Access through APP on your mobile phone Download Link: https://play.google.com/store/apps/details?id=com.acrel.iotems WEBAccesss (Computer):Access Port: https://iot.acrel-eem.com/ Test Account Name: acrelTest Account Password: 123456 APP Accesss (Mobile): DownloadLink: https://play.google.com/store/apps/details?id=com.acrel. iotemsTest Account Name: acrelTest Account Password: 123456Acrel IoT Cloud Prepaid System (Partail Introduction)
Main Function of WEB side System: Prepaid Interface (1) Devices List (2) History Curve (3) Electricity Parameters Report (4) Energy Consumption Report (Daily, Monthly, Yearly) (5) User Report Prepaid Interface-Overview: All basic function of prepaid operation could be seen here.Also, a overview of room balance credit and power consumption was available
Prepaid Interface-Open Account: A prepaid energy meter will formally serve its prepaid billing and control function only after binding a “room” and “user” with it and open account for this certain “room”
Prepaid Interface-Topping Up: Enter amount to issue topping up command to certain “prepaid energy meter” bound with certain ” room/user”.
Acrel IoT Cloud Prepaid System (Partail Introduction)
Main Function of WEB side System: Prepaid Interface (1) Devices List (2) History Curve (3) Electricity Parameters Report (4) Energy Consumption Report (Daily, Monthly, Yearly) (5) User Report Prepaid Interface-Retreat: Retreat certain amount from credit balance. Designed for revising the possible false operation
Prepaid Interface – Control – Prepaid Mode: In Prepaid Mode, when the credit balance below 0, prepaid energy meter will automatically shut down loads power. and when balance above 0, will immediate resume loads power
Prepaid Interface – Control – Postpaid Mode: In postpaid mode, load’s off-on switch control will be fully manually control by platform. Balance credite whether below or above 0 won’t influence the load’s switch on/off status automatically
Acrel IoT Cloud Prepaid System (Partail Introduction)
Main Function of WEB side System: Prepaid Interface (1) Devices List (2) History Curve (3) Electricity Parameters Report (4) Energy Consumption Report (Daily, Monthly, Yearly) (5) User Report
Acrel IoT Cloud Prepaid System (Partail Introduction)
Main Function of WEB side System: Prepaid Interface (1) Devices List (2) History Curve (3) Electricity Parameters Report (4) Energy Consumption Report (Daily, Monthly, Yearly) (5) User ReportEnergy Report (Daily): This Interface show the daily energy consumtion report (calculated by forward active energy)
Energy Report (Daily): This daily energy report could be also export to computer in “Excel” format
Energy Report (Monthly& Yearly): Same as daily energy report, monthly and yearly energy report could be also checked on platform and exported in “Excel” format.
Acrel IoT Cloud Prepaid System (Partail Introduction)
Main Function of WEB side System:Prepaid Interface (1) Devices List (2) History Curve (3) Electricity Parameters Report (4) Energy Consumption Report (Daily, Monthly, Yearly) (5) User ReportUser Report: A comprehensive user report including project overview, energy report, energy analysis and etc could be check on platform
User Report: User report could be exported in “PDF” format into your PC for convenient check and storage.
User Report: User report support template customization in buy-out service of Acrel IoT Energy Monitoirng System.
What can Acrel Online Payment Solution do?A complete electricity online prepaid solution could realize the function below
(1)Online Mobile APP Topping Up
End power user could do online topping up their prepaid energy meter remotely by using Acrel Prepaid APP. (This Acrel Prepaid App designed for end power user)
(2)Auto-generated Energy Report and Electricity Bill
End power user could check their daily, monthly energy consumption and their electricity balance credit by using Acrel Prepaid APP.
(3)Manage End Power Users Account and or other ADMIN System Function for Utility Side
Utility or power selling company could create, manage the all the “user account” for their end power user to realize remote account management, remote load on-off control, remote metering reading function and etc. All the operation will be done on Acrel Cloud Prepaid Platform (this platform designed and opened to utility or power selling company only)
(4)Set Multi-rate/TOU Electricity Price according to your country’s billing Policy
Utility or power selling company could set electricity price for each kwh used by end power user, different electricity price rate setting like flat rate, step rate or multi-tariff will be all avaible.
(5)Low Balance Credit Alarm Setting for reminding of Topping Up the Electricity in time
A low balance alarm will be sent to end power user when their remain balance was lower that a certain threshold, form like by sending SMS or APP warning. This threshold could be set on Acrel Cloud Prepaid Platfor by utility or power selling company.
How should we cooperate for realizing a complete Online Prepaid SolutionStage by stage cooperation move:
Stage 1 – Testing Sample:
Software System: Acrel Prepaid System (3-month Free trial), deployed on Acrel rented cloud server
.
Cloud Server: Using Acrel rented Cloud Server
Hardware: Several pcs of ADL100-EYNK 1-phase Prepaid Energy Meter + AWT100-4GHW IoT 4G Gateway.
Payment Methods: Off-line payment. Stage 2 – Buy-out Service (Off-line Payment – Server Transportation):
Software System: Acrel Prepaid System (Buy-out Service), deployed on customer rented cloud server.
Cloud Server: Using Customer rented Cloud Server.
Hardware: Batch order of ADL100-EYNK 1-phase Prepaid Energy Meter + AWT100-4GHW IoT 4G Gateway. (Special manufacturing order for server configuration)
Payment Methods: Off-line payment. Set administration site for charge the electricity. Stage 3 – Buy-out Service (On-line Payment – 3rd Party Payment API Integration):
Software System: Acrel Prepaid System (Buy-out Service), deployed on customer rented cloud server, also provide Acrel Prepaid APP (for end power user), cutomer side integrate this Acrel Prepaid APP with their local 3rd party payment methods.
Cloud Server: Using Customer rented Cloud Server.
Hardware: Batch order of ADL100-EYNK 1-phase Prepaid Energy Meter + AWT100-4GHW IoT 4G Gateway. (Special manufacturing order for server configuration)
Payment Methods: On-line payment. End power use Acrel Prepaid App to charge the electricity online by themselves. Actual Scenario Example
(1)There are 10 areas with 1-phase Power System needed to be monitored(2)Each area has 20 rooms with 1-phase power system needed to be monitored and billed by online Acrel Cloud Electricity Prepaid System. System could be accessed by PC or Mobile Phone.(3)All 1-phase prepaid energy meters will be of partial centralized installation in each area’s DB room or cabinet, which make it possbile for 1 AWT100-4GHW 4G IoT gateway to support 20 ADL100-EYNK/F 1-phase Energy Meters using RS485 wired communication in a close range.(4)Prepaid energy meter and system must support multi-tariff TOU function to meet country’s multi- tariff request. And needed to be API to 3rd party payment system to realize online payment.Devices Deployment Plan Area #1 [For Room #1-1 to Room #1-20]: 1* AWT100-4GHW IoT 4G Gateway [to support ADL100-EYNK/F #1-1 to #1-20] 20* ADL100-EYNK/F 1 -phase Prepaid Energy Meter [to monitoring Room #1-1 to Room #1-20]Area #10 [For Room #10-1 to Room #10-20]: 1* AWT100-4GHW IoT 4G Gateway [to support ADL100-EYNK/F #10-1 to #10-20] 20* ADL100-EYNK/F 1-phase Prepaid Energy Meter [to monitoring Room #10-1 to Room #10-20]
Communication Structure&Logic
(1)4G Communication could be served as one of the final data upstream methods by sending the data to cloud server deployed in Internet so that Acrel IoT System could be interact with these data collected by bottom metering devices like Energy Meter (2)AWT100-4GHW gateway support upstream of 4G communication with MQTT and MODBUS- protocol and downstream of RS485 communication based on MODBUS-RTU protocol. ADL100- EYNK/F support upstream communication of RS485 communication based on MODBUS-RTU protocol. (3)Based on the communication described in item (2), Acrel AWT100-4GHW gateway could receive the data from ADL100-EYNK/F energy meter using RS485 communication while sending the data further to cloud server using WiFi upstream communication. Thus accomplish a complete communication from bottom metering devices to top Acrel prepaid system software for realizing remote manual Off-line Payment first. (4)By API between Acrel Prepaid System and 3rd party Payment Software, we could realize also remote automatical On-line Payment.
Illustration of Remote Control Logic
Administrator use Acrel Cloud Prepaid System to issue “Control Command”
Topping Up Logic
(1)Buy sample devices from Acrel to test the devices on Acrel Platform and Acrel rented cloud server first for testing some basic Acrel Prepaid System Function and Off-line payment. [In this stage, Acrel System provide 3-month free trail, and will use Acrel rented cloud server] (2)After the testing stage, customer need to buy-out Acrel Prepaid System for permanent usage and rent their our cloud server under the instruction of Acrel Technical Group. Once bought both the buy-out service and rent a own cloud service, Acrel software team will deploy Acrel Prepaid System on customer’s rented cloud server. [Some OEM and customization of Buy-out service of Acrel Prepaid System was available like changing the Logo of system and access address of system] (3)Once software deployed successfully, Acrel technical group assist the customer to first move already bought Acrel hardware devices like prepaid energy meter and IoT gateway from Acrel platform&server to cusomter’s platform&server by changing the configuration of IoT gateway like Server address, server port changing. (4)Once Platform&Server movement success, will proceed for API between Prepaid System and customer’s own 3rd party payment software. To realize a actual Online payment. Will set a API discussion group for this and customer side need to have people who know about API integration. (Acrel Side could provide API protocol in advance for a preview)
Overall API Flow Chart
Major Targetting Application Scenario
The major targetting application scenario for Acrel Online Preaid Solution will be as following:
What can Acrel Online Prepaid Solution do?
A complete electricity online prepaid solution could realize the function below
(1)Online WEB Platform Electricity Vending via Administrator&Online Mobile APP Auto-vending Utility company could set Administrator office in different region and use Acrel Prepaid&Postpaid System Platform for selling the electricity online.
Or could also integrate Acrel Prepaid&Postpaid APP [designed for end power user] with local online payment methods for doing a Online APP Electricity Vending. [End power user use mobile APP to toppping up electricity themselves.]
(2)Auto-generated Energy Report and Electricity Bill
End power user could check their daily, monthly energy consumption and their electricity balance credit by using Acrel Prepaid APP.
(3)Manage End Power Users Account and or other ADMIN System Function for Utility Side
Utility or power selling company could create, manage the all the “user account” for their end power user to realize remote account management, remote load on-off control, remote metering reading function and etc. All the operation will be done on Acrel Cloud Prepaid Platform (this platform designed and opened to utility or power selling company only)
(4)Set Multi-rate/TOU Electricity Price according to your country’s billing Policy
Utility or power selling company could set electricity price for each kwh used by end power user, different electricity price rate setting like flat rate, step rate or multi-tariff will be all avaible.
(5)Low Balance Credit Alarm Setting for reminding of Topping Up the Electricity in time
A low balance alarm will be sent to end power user when their remain balance was lower that a certain threshold, form like by sending SMS or APP warning. This threshold could be set on Acrel Cloud Prepaid Platfor by utility or power selling company. 
