Industrial NBIoT Advanced Metering Infrastructure Communication Modules

NBIoT Communication Module to Realize independent installation of energy meter and unified electrical interface

• Product Overview

1. TW-NBIoT is a communication module for single and three-phase smart watt hour meters based on edge computing. The electrical interface is unified to avoid the secondary development of the electric energy meter.

2. NB-IoT smart meter communication module is embedded with high-performance, low-power, multi-band NB-IoT wireless communication module and low-power 32-bit microprocessor. As long as the use environment of smart electricity meters is within the coverage of NB-IoT communication network, it can realize the instant access of electricity meters to the management platform, receive and respond to the reading/control instructions issued by the platform. At the same time, it can effectively control the upload cycle and reporting tasks and other operating parameters within the communication module. Automatically acquire various data of the electricity meter and upload it 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. Realize NB-IoT network access and establish connection with operator cloud platform.

• Main functions and features

1. Built in MCU, with 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. 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. It is suitable for most smart meters and can be replaced directly (hot 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.

• Specifications and main technical parameters

1. Frequency band information: B5@H-FDD 850MHz；
2. Output power: 23dBm ± 2dB;
3. Receiving sensitivity: - 129dBm ± 1dB;
4. Antenna interface: standard antenna SMA connector;
5. Power supply: DC12V, 500mA;
6. Data storage: data storage time after power failure ≥ 10 years;
7. Communication interface: standard TTL serial port;
8. Baud rate of communication interface of electric energy meter: 2400bps;
9. Communication protocol: Downlink: conform to DL/T645-2007 communication protocol; Uplink: Telecom CoAP protocol/Telecom LWM2M protocol/other operator protocols
10. Working temperature range: - 25 ℃~60 ℃;
11. Limit operating temperature range: - 40 ℃~70 ℃;
12. Storage and transportation limit temperature range: - 40 ℃~70 ℃;
13. Relative humidity: ＜ 75%;
14. Atmospheric pressure: 63.0kPa~106.0kPa (altitude 4000m and below);

• Appearance and antenna installation

Assembly diagram of single-phase smart electricity meter and NBIoT communication module (antenna built-in)

Assembly diagram of single-phase smart electricity meter and NBIoT communication module (antenna built-in)

NBIoT smart meter communication module (external antenna)

Assembly diagram of single-phase smart electricity meter and NBIoT communication module (external antenna)

Assembly diagram of three-phase smart electricity meter and NBIoT communication module (external antenna)

• Cases

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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.