Smart LoRaWAN Modules For Three Phase Electric Meters Reading System

Smart LoRaWAN Modules for Three Phase Electric Meters Reading System

RDK-LoRaWAN three-phase communication module is a LoRaWAN wireless communication module which is based on edge calculation. It embeds the LoRaWAN node-module and the high-speed 32-bit microprocessor with secure encrypted transmission. The module can directly replace the PLC module or the current small wireless module of the electric energy meter, and realize the security control function of adding/decrypting data of the LoRaWAN network terminals, gateway authentication, and multi-node synchronization anti-collision. It realizes independent installation of single and three-phase smart meters, unified electrical interface and avoids secondary development of electric energy meter.

Specification:

Electrical Parameters:

Input voltage, current: 12V; 400mA;

Wireless Performance Parameters:

Center Frequency: 433MHz/470/923/868MHz (customized project);

Modulation technology: Linear frequency modulation spread spectrum modulation;

Bandwidth: 125kHz/250kHz;

RF Power: +19dBm(max);

Receive sensitivity: -139dBm @SF12/BW 125KHz;

Use Environment:

Temperature: -20 ° C ~ +65 ° C;

Humidity: Relative humidity ≤ 95%;

Data Storage: Data storage time after power failure is ≥10 years;

Communication Interface: Standard TTL, 2400bps; 8E1;

Features and Functions:

1. MCU with edge calculation ability will Built-in in the smart electric meter.
2. The LoRaWAN wireless remote mode will configure the operating parameters of the communication module, automatically perform the task list and upload frequency required for the active upload task, etc.
3. The communication module automatically obtains the unique communication address information of the currently installed smart meter after power-on, and binds with its own remote communication address.
4. Professional interface data flow to automatic control technology, prioritize processing of instruction frames sent by platform gateways, and complete real-time bidirectional transparent transmission.
5. It adopts the standard national grid smart meter communication interface and module box design, which is suitable for most smart meters and can be directly replaced (hot plugged).
6. The configured parameters can be saved when the module is powered down and automatically restored when power is restored.
7. Independent power conversion circuit and power enable control circuit, effectively utilize the DC12V power supply of the module interface and the I/O control output of the meter.

Appearance and Dimension:

Transportaion & Storage Condition:
1. The meters should be free from violent collision when being delivered or sealed off, and the buyer should in accord with the rules of ZBW003-82/84 for General Technical Conditions Of Instrument And Apparatus Packaging to transport and store them.
2. The meter should be stored in its original pack and the ambient temperature to keep them should be within -25ºC and 70ºC, there are no corrosive gas in the air.
3. The meter should be placed on the shelves in the warehouse and the stack height should be less than 5 cartons.
4. There shall be no harmful substance causing the corrosion in the air.

Company Introduction:
Wuhan Radarking Electronics Corp. is a modern share enterprises which focusing on the smart Internet of things(IOT) /smart grid energy consumption sensor/intelligent electric safety integrated solution. It established in 2002(former name: Wuhan Radarking Co.,Ltd.)and went public on January 27, 2015 with the stock abbreviation RADARKING and stock number 831722. It owns the independent R&D center and factory which is the key recommended high-tech enterprises in Wuhan city.

Management:
We have a high efficiency, innovative, serious management team, and the factory has already passed ISO9001-2008 QMS, and ISO14001-2004 environment management system. It has not any batch quality problem since establishment. AQSIQ( State Quality Inspection Administration) take the spot checking of our electric meter during 2009-2016, and all the meter passed the inspection. Fully proved that the production is according to our quality management system, and the product quality is stable and reliable.