Introduction of three kinds of network access schemes for charging piles

1, Charging pile network realization function

1) IC card system networking, security encryption;

2) The working environment of the charging pile (temperature, humidity, etc.), working condition detection, alarm, remote maintenance, monitoring;

3) Connect the charging station printer, print the consumption credentials;

4) Dynamic query of the current available charging pile position;

5) LED remote ad delivery function;

6) as a WiFi base station, help to improve wireless coverage area, convenient for users to wait for boredom when surfing the Internet.

2, three kinds of realization scheme

Scheme one: Each charging pile through RJ45 or fiber access Ethernet respectively, connected to the charging station Management center, and then access to the Internet Management Center and database.

Advantages: The main advantages of wired Ethernet are reliable data transmission, large network capacity;

Disadvantages: Complicated cabling, poor expansibility, high construction cost and poor flexibility.

Scenario Two: The charging station internal through the Industrial serial Bus (Rs485/rs232/can) Access concentrator, and then by the concentrator through the RJ45 or fiber access Ethernet or mobile data access services to connect the service management platform and database.

Advantages: Reliable data transmission, simple design;

Disadvantages: The cloth network is complex, the expansibility is poor, the construction cost is high, the flexibility is poor, the communication capacity is low.

Scenario Three: Wireless mode

Wireless mode mainly uses mobile data access services, such as: GRPs, EVDO, CDMA and so on.

Advantages: No complicated cabling, high flexibility, low construction cost;

Disadvantage: Mobile data service with mobile operator needs to access mobile data network of electric vehicle charging pile, which needs to pay expensive monthly rent and annual fee, and the increasing cost of charging piles will increase, while data security and network reliability are restricted by mobile operators. It is not conducive to the safe operation of equipment; Secondly, mobile operator's mobile access bandwidth is a shared bandwidth, when the local area has a large number of equipment access, the reliability of its access and average bandwidth per user will deteriorate, not conducive to the dense access of the charging pile group, large data transmission.

Introduction of three kinds of network access schemes for charging piles