As the “entry†of the Internet of Vehicles and the smart grid, the potential value of the charging pile business is huge. In the future, smart city and intelligent community construction will play an important role in data collection and analysis, resource optimization and configuration, and the charging pile business has a broad development. Prospects and business model innovation space.
The market research report shows that at present, the business model of charging piles in China mainly includes “charging pile + commodity retail + service consumption†mode, “charging APP+cloud service + remote intelligent management†mode, “complete vehicle manufacturer + equipment manufacturer + operation Vendor + User" mode. In addition, there are currently three international mainstream charging pile operation modes, namely, the government-led charging pile operation mode, the power grid enterprise-led charging pile operation mode, and the automobile manufacturer-led charging pile operation mode.
The charging pile is similar in function to the tanker inside the gas station. It can be fixed on the ground or wall, installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. It can be based on different voltage levels. Charge all types of electric vehicles. To put it bluntly, it is similar to the charger of our mobile phone.
First, electric vehicle charging pile function requirements
1. Support local display, touch screen input and key input;
2. The user can pay the charging fee through the non-contact IC card, and the APP software pays;
3. Through the display screen, charging mode selection, charging status display, charging billing inquiry, consumption amount display and balance inquiry can be performed;
4. Control the charger to charge the car battery according to the charging mode selected by the user;
5. Support consumption document printing;
6. Ability to monitor the voltage, current and temperature of the car battery;
7. Support external power meter;
8. Support voice prompts;
9. Ability to transmit data via CAN, Ethernet or GPRS;
10. Local large data storage (pictures, advertisements, charging records, etc.);
11. Support remote upgrade applications.
Second, electric vehicle charging pile classification
The charging pile is divided into a DC charging pile and an AC charging pile. The charging speed of the DC charging pile is faster than that of the AC charging, and the vehicle charger of the DC charging pile is in the pile, and the AC pile is in the automobile. The image is as follows:
Third, smart charging pile solution
1. Design of charging pile based on NXP, TI, Toshiba and Micron MCU
NXP, TI, Toshiba, Micron and other semiconductor manufacturers can help the application market, and can realize charging piles with functions such as power billing, network control, emergency stop and power off. Enables connection to the cloud via Ethernet, WeChat intelligent control and charging.
Scheme block diagram
Functional description
1 DC charging pile with power billing, network control, emergency stop and power failure
2 Charging piles have protection functions such as leakage, short circuit, over voltage, under voltage and over current to ensure safe and reliable operation of charging piles.
3 Connect to the cloud via Ethernet to implement WeChat intelligent control and charging
Important feature
1 ARM Cortex-M4 core, low power, high performance
2 Emergency stop switch power-off protection to prevent accidents
3 Ethernet connection network for WeChat intelligent control
2, Feiling embedded charging pile solution
The embedded core module of Feiling can be used as the main control unit of the charging pile. Through our core module, the hardware and software interface can be connected to the corresponding input/output components to complete the man-machine display, parameter setting, metering, billing, payment, and data. Acquisition, data transfer, data encryption and decryption, control of charging device start and stop, network communication and other functions.
The overall program block diagram is as follows:
According to the actual needs of different users, Feiling has prepared two sets of different features.
1, FET335x program
The FET335x core module is an industrial-grade core board that Feiling embedded for the charging pile function. Charging piles are used as auxiliary devices for charging electric vehicles. There are many internal devices that need to communicate, and most of them are RS-232, RS485, and CAN interfaces. The FET335x core module provides a wealth of interface resources to meet the various needs of the charging pile in the design process, and its industrial-grade standards ensure stable operation in outdoor environments.
The data processing, charging control unit, human-computer interaction and other functions of the charging pile are mainly realized by the Feiling FET335x core module. It uses the Cortex-A8 architecture and operates at up to 800MHz with a pre-installed Linux operating system.
FET335x solution
2, iMX6 core module solution
The iMX6 core module is an industrial-grade core board that Feiling embedded to enhance the human-computer interaction experience. The iMX6 core board adopts the Cortex-A9 architecture. The CPU is quad-core 1G Hz frequency, which can smoothly run the Android operating system. It has powerful multimedia processing capabilities, supports dual-screen display, and can be equipped with one LCD or one LVDS 7-inch screen. One way HDMI display.
iMX6 core module solution
summary
With the popularization of new energy vehicles, the lack of charging pile charging standards, the idle charging piles, the high cost of construction land, the imperfect infrastructure, low operational efficiency, and profitability are all highlighted. If the standards are not uniform, the utilization rate is low, and the cost is high. The lag in the construction of charging infrastructure has become a short-term constraint to the development of the new energy automobile industry.
Although it is not yet profitable, the huge “cake†temptation in the charging pile market is still enticing, and operators are constantly exploring the profit model. If a certain scale is reached, profitability is inevitable.
The construction of new energy electric vehicle charging facilities still needs government policy support to establish and operate public transportation demonstration projects. For private car groups, encouraging consumers to actively participate in the purchase and use of electric vehicles is conducive to a virtuous circle and contribute to industrial development. Explore a diversified service model, combine Internet technology, provide new energy charging stations with more convenient self-service, etc., and build a charging network service system by using resources such as business districts, units and parking lots around the community. . Layout gas stations, service areas, tourist attractions, network service extension, and cultivate user habits, the market prospects of electric vehicles will be more full of expectations.
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