What is distribution terminal unit (DTU)
The automatic distribution terminal unit (DTU) has a flexible configuration function, WEB publishing function, and an independent protection plug-in function. It is a new type of distribution network automation terminal integrating DTU, line protection and communication equipment management.
The automatic network distribution terminal (DTU) is generally installed in conventional switching stations (stations), outdoor small switching stations, ring network cabinets, small substations, box-type substations, etc., Complete the collection and calculation of the position signal, voltage, current, active power, reactive power, power factor, electrical energy and other data of the switchgear, open and close the switch, and realize the fault identification and isolation of the feeder switch and restore the power supply to the non-fault section. Some DTUs also have the function of protection and automatic input of standby power.
At present, the automatic network distribution terminal (DTU) complies with the relevant international, national and Ministry of Electric Power standards. The terminal can collect and store various data of the electric energy meter through setting or timing, and can exchange data with the main station through the 4G wireless module. The terminal uses liquid crystal display. It also has far-infrared, RS485, RS232, Bluetooth, Ethernet and other communication methods.
BLE Bluetooth module in the distribution terminal units(DTU)
With the construction of the national ubiquitous power Internet of Things, wireless technology is increasingly used in the automatic network distribution terminal (DTU), especially the low-power Bluetooth technology, which has inherent advantages in the near field communication, which can be used with smart phones. Instant communication with other devices. Compared with the complexity of using infrared and RS485 technologies, the use of Bluetooth is becoming simpler and more common, and it can better complete the interaction with users.
At present, Bluetooth can mainly realize the following functions on the automatic network distribution terminal (DTU): power parameter setting; power maintenance such as faults and data collection; Bluetooth wireless switch control circuit breaker for line protection, etc.
As a professional Bluetooth module solution provider, Feasycom provide the following industrial-level module solutions on the automatic network distribution terminal (DTU).
The FSC-BT630 module uses Nordic 52832 chip, supports multiple connections, ultra-small size: 10 x 11.9 x 1.7mm, Bluetooth 5.0, and has passed FCC, CE and other certifications.
The FSC-BT681 module uses the AB1611 chip, supports Bluetooth 5.0, supports Bluetooth multi-connection, and Mesh. It is an industrial-grade module with a cost-effective performance.
The FSC-BT616 module uses TI CC2640 chip, supports Bluetooth 5.0, supports master-slave integration, and is widely used in the field of industrial control.also it has a far-infrared, RS485, RS232, Bluetooth, Ethernet communication.
