Application scheme of 4G DTU in charging pile networking

Application scheme of 4G DTU in charging pile networking

The charging pile is mainly composed of a pile body, a metering module and an electrical module, and the basic structure is similar to a low-voltage power distribution cabinet. Charging piles are mainly divided into AC charging piles and DC charging piles. The AC charging pile generally has a power of about several KW and is suitable for slow charging. Generally, it has an RS485 or RS232 interface. The charging data is uploaded to the cloud through the DTU, and the deduction method is calculated through the cloud application.

The power of DC charging piles is generally a few 10KW, providing fast charging services, which are mainly used in various types of charging stations, highways and other fast charging occasions.

Technology deployment

The charging pile system consists of charging piles, industrial DTUs, back-end management platforms, data management centers, and Internet-based APP applications. The charging pile has an RS232 or RS485 interface, and it is directly connected to the Xinyangbang DTU through the serial port. Through the data transmission function of the DTU, the data of the charging pile is uploaded to the server through the GPRS network to realize the data networking of the charging pile. Charging pile operators can remotely monitor and maintain them in real time.

Program advantages

★ Reliability of communication: The communication system has to withstand the test of harsh environment and strong electromagnetic interference or noise interference for a long time, and keep the communication unblocked.

★ Construction cost: On the premise of satisfying reliability, comprehensive consideration of construction cost and long-term use and maintenance cost.

★ Two-way communication: Not only can upload the amount of information, but also realize the release of the control amount.

★ Multi-service data transmission rate: With the continuous growth of terminal business volume in the future, the communication between the master station and the sub-station and the sub-station to the terminal requires higher and higher data transmission rates for the realization of multiple services.

★ Communication flexibility and scalability: As the charging pile has the characteristics of multiple control points, wide coverage and decentralization, it requires the use of standard communication protocols; the development of network technology trends and the continuous growth of power operation services need to be considered based on IP At the same time, it is required to facilitate installation, construction, commissioning, operation and maintenance.