Project Background

Due to the accuracy and openness of GPS and Beidou’s positioning and timing system, it is widely used in power systems and can be used for fault location, fault recording, status determination, motor excitation and speed regulation, power angle measurement, etc. In terms of protection, it has been used for out-of-step protection of the power system, current differential protection of the line, etc., and also for the synchronization of the integrated automation system of the power grid and the relay protection device. GPS and Beidou receivers can send very accurate time information.

Power FTU/DTU scene application

The application of positioning function in the inspection of distribution electric lines can effectively improve the efficiency of manual inspection, making the inspection work true, accurate, efficient and complete

Scheme structure diagram: hood FTU, serial port 101, timing positioning scheme

Alotcer:

Communication with the master station through the 5G/4G power network
Connect to (FTU serial terminal) through RS232 serial port to send and receive data

Positioning and timing: Obtain the latitude, longitude, and time, and pass it to the FTU through the serial port:
1. After the FTU obtains the time, it performs time synchronization
2. The FTU obtains the latitude and longitude and converts it into 101 statutes to report to the main station through the module

Power FTU/DTU scene application

Scheme structure diagram: box DTU, network port 104, timing positioning scheme

Alotcer:      to communicate with the main station through the 5G/4G power network
Connect to the bottom (DTU network port terminal) through the network port for data interaction. The terminal has two TCP connections:
TCP1: 104 protocols for connection and interaction with the master station
TCP2: establish a connection with the module to interact with the timing service positioning protocol
1. After DTU obtains the time

2. The DTU obtains the latitude and longitude and converts it into a 104 protocol, which is uploaded to the master station from the TCP1 channel

Power FTU/DTU scene application

How the timing service works

1. The positioning chip on Alotcer searches for GPS and Beidou satellites to obtain real-time latitude, longitude, and time.

2. The FTU and DTU interactively locate and time the protocol packets through the serial port or network port, so that the FTU and DTU can obtain the latitude, longitude, and time.

3. After the FTU and DTU obtain the time message, they will synchronize their own time, convert the latitude and longitude into 101 and 104 specifications and upload it to the main station through the module.

4. And through the Alotcer second pulse pin to further achieve high precision timing.

Realization function: FTU high-precision time synchronization and positioning

Alotcer Industrial Wireless Router

 

AD7028 industrial router (for power hood FTU only)

AD7028 industrial router

► Support SA/NSA dual-mode 5G, provide 4G/5G full Netcom high-speed network services
► Power-grade hardware and software quality, dedicated to power hood FTU, meet the innovative application of hood FTU 104 network port to 4G/5G
► Single network port, dual serial ports, dual card dual standby, GPS/Beidou timing positioning, second pulse timing, Lora, and other rich hardware interfaces
► Support electric power 101, 104, Southern/State Grid hardware encryption, electric power public and private 1.4/1.8GHz private network
► Support the customization of original configuration parameters, including device name and model, which will not be lost after restoring the factory
► Power-grade high-spec software and hardware solutions, independent and powerful MCU processor, multi-level watchdog protection, never downtime
► The product has obtained the type test certification from the Chinese Academy of Electrical Engineering, the security encryption certification from the Chinese Academy of Electrical Engineering, and the certification from China’s 3C and other authoritative organizations
► Meet 5~60VDC wide voltage, -40~+80ºC cold and high-temperature resistance, anti-interference, 24-hour operation

Single-port AD7028 industrial router (special power supply)

► Support SA/NSA dual-mode 5G, provide 4G/5G full Netcom high-speed network services
► Single network port, dual serial port, dual card dual standby, GPS/Beidou timing positioning, second pulse timing, Lora, etc.
► Support electric power 101, 104, South China/State Grid hardware encryption, electric power 1.4/1.8GHz private network
► Support the customization of original configuration parameters, including device name and model, which will not be lost after restoring the factory
► Support Alotcer remote operation and maintenance cloud, which can directly penetrate the network to remotely access the customer’s own network port or serial terminal device
► Support Alotcer device management platform, which can remotely view, configure, upgrade and maintain equipment, 10K+ capacity
► Power-grade high-spec software and hardware solutions, independent and powerful MCU processor, multi-level watchdog protection, never downtime
► The product has obtained the type test certification from the Chinese Academy of Electrical Engineering, the security encryption certification from the Chinese Academy of Electrical Engineering, and the certification from China’s 3C and other authoritative organizations

► Meet 5~60VDC wide voltage, -40~+80ºC cold and high-temperature resistance, anti-interference, 24-hour operation

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