LoRaWAN single and three-phase smart meter communication module based on edge computing

• Product Overview

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TW LoRaWAN single and three-phase communication module is based on edge computing. It is an independent installation

of single and three-phase smart meters. The electrical interface is unified, which avoids the secondary development of

LoRaWAN wireless communication module of electric energy meter.

LoRaWAN meter communication module is embedded with LoRaWAN node module with secure encryption transmission

function and high-speed 32-bit microprocessor. It can effectively control the communication module and automatically acquire

various data of the electric energy meter according to its internal upload cycle, reporting task and other operating parameters.

And the data of the electricity meter can be uploaded to the cloud platform on a regular basis. The communication module can

directly replace the PLC module or small wireless module of the current electricity meter. It can realize security control functions

such as encryption/decryption of data at the wireless end of the LoRaWAN network, gateway authentication and network access,

multi-node synchronization and anti-collision.

• Main functions and features​

1. Built-in MCU. Edge computing capability;

2. The communication module has the ability to automatically obtain the unique communication address information of the currently

equipped smart meter after power-on. And realize binding with its own remote communication address;

3. LoRaWAN wireless remote mode can flexibly configure the operation parameters such as task list and upload cycle time required

by the communication module to automatically execute the active upload task;

4. Professional interface data flow automatic control technology. Give priority to the instruction frame issued by the platform gateway

to complete real-time two-way transparent transmission;

5. The standard smart meter communication interface and module box design of the State Grid shall be adopted. Suitable for most

smart meters. It can be replaced directly (powered plug).

6. The configured parameters can be saved when the module is powered down. Automatic recovery when power is restored.

7. Independent power conversion circuit and power enable control circuit. Effectively use DC12V power supply of module interface

and I/O control output of ammeter.

• Main technical parameters​

1. Electrical parameters:

Input voltage: 12V

Current: 400mA;

2. Wireless performance parameters:

Central frequency point: 433MHz/470/923/868MHz (customized project);

Modulation technology: linear frequency modulation spread spectrum modulation;

Bandwidth: 125kHz/250kHz;

RF power:+19dBm (max);

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

3. Operating environment:

Temperature: - 20 ℃~+65 ℃;

Humidity: relative humidity ≤ 95%;

4. Data storage: data storage time ≥ 10 years after power failure;

5. Communication interface: standard TTL, 2400bps; 8E1；

• Appearance and antenna installation

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Single-phase smart electricity meter and LoRaWAN communication module assembly diagram

Three-phase smart electricity meter and LoRaWAN communication module assembly diagram

Wuhan Time Wave Network Technology Co., Ltd realizes the energy supervision service platform based on the LPWAN core technology.provide customers with one-stop overall solutions and metering terminal,system platform, project construction and system maintenance.

We developed the "TimeWave Cloud" energy regulatory platform. It is mainly used for metering, meter reading, charging, management and control of water, electricity and heat. It can realize and provide automatic meter reading and charging, carbon emission monitoring, safe power consumption, energy consumption analysis, energy saving analysis, distribution and transformation monitoring, dynamic environment monitoring of machine room, intelligent operation and maintenance and other subsystems. And independently developed and produced "TimeWave" Smart meter, intelligent water meter and communication terminal products.

The management of water and electricity meters through LoRaWan communication technology has reached the international advanced level and is in the leading position in China!

• Office environment

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• Honors qualification​

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Wuhan TimeWave,as a high-tech enterprise,a "double software enterprise" and a "Little giant of science and technology " enterprise in Hubei Province, the company has successively obtained 5 invention patents, 26 software copyrights, and 4 software products.and has obtained ISO9001 quality management system, ISO20000 IT service management system, ISO27001 information security management system and intellectual property management system certification,chairman xu chen won the title of "3551 optical valley talent plan" In 2021.

We realizes the energy supervision service platform based on the LPWAN core technology.Provide customers with one-stop overall solutions and metering terminal,system platform, project construction and system maintenance.

In the future, the company will continue to expand the application of " TimeWave Cloud " energy regulatory platform in various industries in the field of LPWAN Internet of things. We are committed to solving the problems of meter reading, charging, payment, energy saving and improving efficiency and safe energy use, and continue to create the maximum value for customers.