The platform architecture of the EV charging station system is a critical design for ensuring smooth, secure, and sustainable charging services. Below is an overview of the EV charging station system platform architecture:

I. Frontend User Interface Layer

The frontend user interface layer serves as the window for users to interact with the EV charging station system, providing functions such as charging station search, navigation, charging reservations, payment and settlement. The interface design focuses on user experience, adopting responsive design to adapt to different devices and integrating map services for precise location services.

II. Mobile Application and Web Service Layer

The mobile application and web service layer serve as a bridge between the user interface and the backend system, responsible for receiving and responding to data. Communication with the backend system is facilitated through RESTful APIs, ensuring the security and efficiency of data exchange. This layer also implements functions such as user authentication, transaction processing, and information push notifications.

III. Business Logic Layer

The business logic layer handles complex business rules, such as billing strategy calculations, coupon applications, user level management, and order processing logic. Based on a microservices architecture design, the business logic layer ensures loose coupling between services, facilitating system expansion and maintenance.

IV. Data Processing and Analysis Layer

The data processing and analysis layer collects and processes real-time data from EV charging stations, such as charging status, power consumption, and equipment health status. Big data technologies are utilized for storage management and analysis, providing support for operational decisions. Additionally, machine learning algorithms are employed to predict charging demand and optimize resource allocation.

V. Device Management and Communication Layer

The device management and communication layer connects with physical EV charging stations through Internet of Things (IoT) technology, enabling remote monitoring, fault diagnosis, and firmware upgrades. Protocols such as MQTT are adopted to ensure low-latency and high-reliability communication between devices.

VI. Security and Authentication Layer

The security and authentication layer permeates the entire system, responsible for user data encryption, access control, and prevention of malicious attacks. Protocols such as OAuth2 and SSL/TLS are used to ensure secure data transmission, implementing user identity verification and authorization management.

In summary, the EV charging station system platform architecture achieves comprehensive coverage from user interaction to backend data processing, from device monitoring to security assurance, through the coordinated work of each layer.