Hangzhou Water Meter Co., Ltd. applies LoRa technology and LoRaWAN standards to smart water meter solutions, enabling remote, efficient and intelligent management of public utility water metering equipment. Why did the smart water meter of this company in China finally choose LoRa technology and LoRaWAN protocol?

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What is the success of LoRaWAN applied to water meters?
Written By Calio Huang
Hangzhou Water Meter Co., Ltd. applies LoRa technology and LoRaWAN standards to smart water
meter solutions, enabling remote, efficient and intelligent management of public utility water
metering equipment. Why did the smart water meter of this company in China finally choose
LoRa technology and LoRaWAN protocol?
Recently, Hangzhou Water Meter Co., Ltd., which is committed to providing customers with
intelligent water meters and solutions, has successfully applied LoRa devices and LoRaWAN
protocols to smart water meter solutions. Why did the company choose LoRa technology and
LoRaWAN protocol? First, let's understand what LoRa and LoRaWAN are, respectively.
What is LoRa?
Although LoRa is often misused to describe the entire LPWAN communication system, strictly
speaking, LoRa's proprietary modulation formats SX1272 and SX1276 LoRa chips use a
modulation technique called chirp spread spectrum (CSS) to form the physical layer of the
technology stack ( PHY).
Lora has two different protocol stacks: LoRaWAN and Symphony Link. Symphony Link is intended
for industrial and enterprise users who require advanced features. LoRaWAN is suitable for
LoRaWAN-based mobile networks and is growing faster in Europe.
Low-power wide-area networks (LPWANs) are expected to support billions of devices predicted
by the Internet of Things, consisting of many components throughout the system. The physical
(PHY) layer defines the electrical specifications of the data transmission at the hardware level.
The data link layer is responsible for detecting changes in the PHY layer and establishing a
protocol for transmitting data.
What is LoRaWAN?

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LoRaWAN is an open standard that defines the communication protocol for LPWAN technology
based on LoRa chips. LoRaWAN defines Media Access Control (MAC) at the data link layer and is
maintained by the LoRa Alliance. This distinction between LoRa and LoRaWAN is important
because other companies such as Link Labs use a proprietary MAC layer on top of the LoRa chip
to create a better hybrid design, called Symphony Link in the Link Labs case.
As mentioned earlier, LoRaWAN is a media access control (MAC) layer protocol designed for large
public networks with a single carrier. It is built using Semtech's LoRa modulation scheme.
Reasons for choosing LoRa and LoRaWAN for Hangzhou Water Meter
Hangzhou Water Meter is a wireless remote water meter solution based on LoRaWAN
communication protocol and architecture. It is mainly composed of LoRaWAN IoT water meter
and smart meter reading gateway. The smart water meter embedded with LoRa technology can
be connected to LoRaWAN network for communication, with receiving and storage. The function
of water meter data can report the usage of public facilities in real-time. Through the use of
LoRaWAN smart water meter solutions with low power consumption, wide coverage and high
success rate of meter reading, Hangzhou Water Meter Co., Ltd. have successfully helped
customers reduce costs and realize smart public utility management.
“LoRa technology is chosen because of its openness, ease of deployment and flexibility.
LoRaWAN adopts the LoRa Alliance standardization protocol, which can truly realize
interconnection and interoperability. Water meter terminal customers can make up for the
application limitations brought by NB-IoT technology through LoRaWAN protocol, and help.
Customers save costs, improve the efficiency of meter reading management, and save water
resources." Liu Jian, general manager of Hangzhou Water Meter Co., Ltd. said.
What kind of Internet of Things standards do Chinese companies prefer in the EE Times? The
various advantages of LoRaWAN have been mentioned in the article. In short, LoRaWAN has the
following advantages, let's summarize it:
First, long life. The LoRaWAN network can be used in very power-saving situations, such as on a
water meter battery, which can last for a decade.
Second, long distance. LoRaWAN can turn data transmission into long distance. In the past,
wireless transmission of data was mainly based on short-distance schemes such as Wi-Fi and
Bluetooth. It is probably in the range of tens of meters and hundreds of meters, and LoRa can
achieve dozens of kilometers. The above distance is transmitted.
Third, low cost. The entire architecture of the LoRaWAN network is very simple and the cost of
use is very low.