EV charging system requirement
These EV charging station shall use solar panels to generate electricity and solar inverter system shall communicate with the EV chargebox via RS485 on various parmeters like current power generation, how much power is consumed by the electric vehicle. The chargebox shall be connected to the vehicle via charging system physically connected to the charging vehicle. The chargebox can autheticate the user only using RF smart card which can be securely swipped out. Once the authetication is done, then only charging can be started.
The user can use his smartphone to book the charging time, to pay the bills and check the nearest charging station from his location.
The central system should be able to control the EV vehicle users, EV chargbox owners and billing system.
Implementation points.
Chargebox system
- The chargebox development for the RS485 communication with solar inverter.
- The chargebox user authetication using RF smartcard swapping.
- The chargebox uses wifi to communicate on internet.
- the OCPP protocols to use to communicate with central system.
- later on chargebox system should be able to use the GSM/4G system to communicate from remote place.
Back End Server.
- back end server should be able to use the databse system to get/save/update the user data, chargebox data
- HTTP communication with web server
- secured system
- secured communication with mobile application and chargebox device.
Webserver application
- webpage for central system
- webpages for EV user and chargebox oweners.
- the webpage should be able to
- create new users/administrator
- access to the admin staff to monitor the credit status, new user privillages, power dashboard monitoring
- seperate page to the EV chargebox monitoring as chargebox owner.
- map and nearest charging station monitoring, credit balance monitoring and billing system
The architecture diagram