The low-key LoRa has another big move!
Latest update time：2021-08-30 19:38
Reads：
As a long-distance, low-power wireless radio frequency communication technology, the development of LoRa technology is relatively low-key. In fact, LoRa technology has become one of the de facto standards for the mainstream Internet of Things. LoRa continues to grow rapidly around the world, and as of January 2020, more than
145 million terminal nodes
have been deployed worldwide
.
On the other hand, the LoRa Alliance is also growing, with about 500 members, including
domestic manufacturers such as
Alibaba and Tencent
. Alibaba has long been promoting the slogan: "Now, every home has WiFi, and in the future, every company will have LoRa." Today, LoRa is not only suitable for major companies, but also widely used in residential real estate projects due to its
self-organizing, safe and controllable
features.
Semtech, the company
leading the LoRa technology,
has taken this technology to its extreme. Recently, it has launched
the LoRa Edge
series of products, focusing on geolocation and developing revolutionary IoT devices for asset management applications. On July 30, the "2020 LoRa Innovation Application Forum" hosted by Semtech was held at the Shenzhen Convention and Exhibition Center. The meeting not only gave a detailed interpretation of the breakthrough products, but also cleared up the layers of "doubts" about LoRa for the outside world.
What are the challenges of geo-targeting?
Traditional GPS technology is expensive, faces some technical challenges in its successful deployment, and requires high power consumption to operate. As a result, some IoT fields face a series of challenges when widely adopting geolocation technology to track assets:
Traditional GPS trackers consume a lot of power, so the batteries need to be replaced several times a year. In some cases, asset trackers are installed in locations that are difficult to maintain, such as gas or refueling stations, or in fleets of cars. Such deployments make battery replacement very expensive, especially when thousands of trackers are deployed in the field.
When deploying IoT, it’s easy for mistakes to occur. For example, when installing sensors in a building, the manual registration process is prone to human error. In addition, trackers may be moved from one location to the next without the tracking log being manually updated.
Since these devices can last five, ten or even twenty years, technicians need to be dispatched for maintenance, but asset trackers often “lose connection” due to battery exhaustion that prevents notifications from being sent, or changes in business ownership.
How often does a solution need to collect the device's location? Once a minute? Once a day? The frequency of collecting device location is directly related to cost and battery life; in many cases, traditional GPS technology cannot meet user needs in these two aspects.
How to solve the problem?
So, is there a solution that can make geolocation technology a local service that any type of connected device can provide, and can automatically provide the location on the map? As a result, LoRa Edge came into being. In addition, LoRa Edge can make the battery life 10 times longer than the existing cellular network solution, and customers only pay for geolocation services when needed.
而作为LoRa Edge的特点之一，低功耗又将如何实现？Semtech市场战略总监甘泉指出，
该方案与基于云的定位服务相结合
，创建了一个独特的系统架构，因此可以同时实现精准定位和低功耗。由于不再需要添加GNSS和Wi-Fi器件，LoRa Edge
降低了设备的物料清单（BOM）成本
，并显著降低了设计和采购复杂性。通过添加LoRa Cloud地理定位服务，以及提供简单易用且经济高效的到达时间差（TDOA）数据、GNSS和基于Wi-Fi的云位置计算功能，进而
大幅减少了设备的功耗需求
，并提高了资产管理效率。
It is worth mentioning that LoRa Edge uses
the
Wi-Fi passive scanning
principle to detect Wi-Fi b/g/n signals; extract the MAC address of the device's geolocation; capture and demodulate Wi-Fi data packets containing MAC address information to save power; extract and transmit optional signals and RSSI; and send the MAC address to a cloud-based Wi-Fi search service.
The first LoRa Edge chipset for geolocation,
the LR1110, is available now
, with further members of the family to be released in 2020.
Has the “fog” of becoming a de facto standard been cleared?
When it comes to promoting development, although LoRa has been gaining ground globally and has a large number of application scenarios, the promotion of LoRa technology in China has experienced twists and turns, which is also a common concern in the industry. At present, China has an open attitude towards technology, and the promotion of LoRa is becoming clearer.
On November 28, 2019, the Ministry of Industry and Information Technology issued Announcement No. 52 of 2019. In this "Announcement No. 52 of the Ministry of Industry and Information Technology of the People's Republic of China in 2019", the catalog and technical requirements of micro-power short-range radio transmission equipment were further detailed:
The networking application is limited to small areas such as buildings, residential areas and villages;
Limit transmission to a single channel at any time;
Civilian measurement equipment should have anti-interference function;
Avoid interference with local radio and television stations;
Comply with transmit power limits and transmit power spectrum density limits;
The duration of a single launch does not exceed 1 second;
The occupied bandwidth is not greater than 500kHz.
LoRa technology meets all the requirements of the announcement. Gan Quan, director of market strategy at Semtech, said in an interview:
"Announcement No. 52 makes LoRa a communication network with laws and available frequency bands in China."
First of all, the announcement regulates the technical parameters of LoRa technology and provides a good environment for the long-term development of LoRa technology. With laws to rely on, the announcement provides a basis for regulating industry market behavior, determining legal boundaries, and reducing corporate risks of violating laws. This announcement comprehensively regulates all aspects of the production, import, sales and use of micro-power equipment. Therefore, the official release of the announcement is a reassurance to the industry from a policy level. Regardless of the degree of impact on themselves, each company has at least obtained a definite definition of legality and illegality, so it can conduct business within the legal scope.
Announcement No. 52 actually helped the development of the LoRa ecosystem in China. However, at this stage, it still faces difficulties in implementation such as fragmented scenarios.
Currently, LoRa has been widely used in water, electricity, gas and other metering industries, and will shine in smart homes, smart buildings, agricultural equipment, logistics tracking and other fields. Whether it is LoRa's huge ecosystem or its wide range of application scenarios, LoRa's development potential is obvious to all, and it will usher in greater development opportunities in the future.
source:
LoRa Edge - Enabling Smarter Geolocation for the IoT, Marc Pégulu
The Ministry of Industry and Information Technology issued Announcement No. 52 of 2019
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