What is the difference between NB-IoT water meter, LoRaWAN water meter and GPRS water meter?

What is the difference between NB-IoT water meter, LoRaWAN water meter and GPRS water meter?

With the progress of the times, the water meters used in daily use are becoming more and more intelligent. Technology makes the meter reading and charging smarter. Today, the three types of water meters, NB-IoT water meters, LoRaWAN water meters and GPRS water meters, are mainly Some people don’t know how to choose and distinguish these three types of meters. Now Xiaoyi will introduce in detail how to distinguish these three types of smart water meters.

1. NB-IOT water meter

brief introduction 
NB-IoT is an emerging technology in the IoT field, which supports the cellular data connection of low-power devices in the wide area network. NB-IoT uses the authorized frequency band based on the operator's global coverage network, which can be directly deployed on the GSM network, UMTS network or LTE network to enjoy better services.
  
Features
Ultrasonic NB valve-controlled water meter is a new type of intelligent fully electronic valve-controlled water meter using ultrasonic detection technology. The instrument integrates measurement, accumulation, display, and remote valve control. It adopts micro power consumption technology. A battery can be used for more than 8 years, and it can achieve accurate measurement of minimum flow of 0.001 m3/h. At the same time, the instrument has a small size and stability. Good performance and strong anti-interference ability.
Ultrasonic flow measurement technology is adopted, which can realize multi-angle installation, and the instrument measurement is not affected, while the pipeline pressure loss is minimized. 
The valve switch can be controlled remotely to realize the remote control of the water by the user.
Specially used for household measurement in residential subdivisions
The intelligent valve-controlled water meter can be connected to the NB-IOT module produced by our company and use the NB network for data transmission to form a wireless monitoring system. When the pipe network is operating abnormally, it will actively report the information of the pipe network operation abnormality.

2. LoRaWAN water meter

brief introduction 
LoRaWAN was born earlier than NB-IoT. LoRaWAN works in an unlicensed frequency band, so there is no additional charge. The LoRaWAN protocol is simpler than NB-IoT, easier to develop, and relatively low cost. LoRaWAN nodes can sleep long or short according to specific application scenarios, and have longer battery life
 
Features
The advanced wireless transmission technology is adopted to realize the remote collective reading of the remote water meter, the concentrator, and the computer, without wiring, the construction is simple and convenient, and the problem of difficult meter reading is effectively solved.
The remote water meter uses the wireless networking of the meter, the signal is covered without gaps, and there is no blind spot for meter reading.
The valve is designed with anti-rust function, and the valve is automatically opened and closed twice a month.
Frequency automatic calibration technology: Automatically adjust operating parameters, effectively avoid frequency offset caused by environmental changes, and achieve ultra-high meter reading rate.
Electromagnetic wave wake-up technology: wake up the target smart meter to make it in communication state during meter reading, and automatically restore to ultra-low power consumption state after meter reading, which saves energy and reduces consumption.
A variety of meter reading methods are available, and wireless centralized meter reading system and handheld meter reading system can be selected according to different needs.
There are two optional designs for scheduled uploading and real-time uploading to meet different customers' needs.
High waterproof grade design, protection grade can reach IP68;
Adopt American Semtech company communication chip, with high performance, low power consumption and other characteristics;
 
3. GPRS water meter
  
brief introduction 
GPRS is the abbreviation for General Packet Radio Service Technology. For the packet switching mode, users occupy resources only during the period of sending or receiving data, which means that multiple users can share the same wireless channel efficiently, thereby improving the utilization rate of resources, but relatively long link time pays less. GPRS can provide up to 115kbps transmission rate, high transmission rate.
Summary: There is no uncontroversial choice in the IoT field. Each application scenario has its own unique needs and considerations.

Features
The GPRS ultrasonic water meter integrates the ultrasonic water meter and the GPRS data acquisition module into a whole, and has the characteristics of compact structure and convenient installation. The watch uses high-quality low-voltage electric ceramic transducers to ensure high accuracy and stability. The watch has no mechanical movement, no abrasion, is not affected by bad water quality, and has low maintenance costs. The meter can be installed horizontally and vertically, and the humanized design meets the requirements of normal reading viewing angle, making reading more convenient. GPRS ultrasonic water meter can display the four display functions of cumulative flow (m3), instantaneous flow (m3/h), cumulative running time (h), cumulative error time (h), etc., and can display the current date, factory number, and the previous two The monthly water consumption value for 14 months, with low battery indication and automatic error diagnosis function, to ensure safe and accurate operation. The water meter is also equipped with an infrared interface, which can be used for hand-held automatic meter reading device for meter reading.
Four. Summary
In summary, the three types of smart water meters have different functions and characteristics. They can only be used in different environments to give full play to their greatest advantages. I hope this article will help you!