According to Machina Research, by the end of 2020, the Internet of Things (IoT) was expected to have over 1.5 billion connected devices. Approximately one-third of these devices would rely heavily on geographic data, and 60% of applications were likely to incorporate location-based information. As IoT applications continue to evolve, the demand for precise positioning has become more critical, especially in asset tracking and monitoring systems.
LoRa stands out due to its unique capability to provide geographic location data without significantly increasing the bill of materials or power consumption. This makes it an ideal choice for low-power, long-range IoT applications. The LoRa-based geolocation system works both indoors and outdoors, with accuracy influenced by factors such as terrain and the density of base stations.
The principle behind LoRa positioning relies on the time difference of arrival (TDoA) method. As a narrowband wireless technology, LoRa uses synchronized gateways to determine the location of a device. When a LoRaWAN terminal sends a packet, it is received by all nearby gateways, which then forward the data to the network server. All gateways share a common time base, ensuring accurate triangulation of the device's position.
This process eliminates the need for the endpoint to scan or connect to a specific gateway, reducing overhead and improving efficiency. The sensor simply wakes up, transmits the data, and all gateways within range can receive it, making the system highly scalable and reliable.
LoRa positioning offers several key advantages:
- **Low Power Consumption**: No additional processing is required for location tasks, and the device doesn't need to spend extra "air time" transmitting location data. Even small packets can be used for geolocation.
- **Low Cost**: There’s no need for GPS or other external hardware, allowing for smaller batteries and compact designs.
- **Minimal Environmental Impact**: The reduced size and complexity of the sensor contribute to lower resource consumption and longer battery life.
These features make LoRa positioning suitable for a wide range of applications, including:
1. **Smart Cities and Traffic Monitoring**: In automotive applications, geolocation helps track incidents, improve emergency response, and support predictive maintenance. Accurate location data enhances algorithm performance and decision-making.
2. **Logistics and Asset Management**: From trash can fill level monitoring to container tracking, geolocation enables optimized collection routes and efficient inventory management.
3. **Agriculture**: Livestock tracking using LoRa allows farmers to monitor animal health and quickly respond to illnesses. In large ranches, knowing the exact location of an affected animal improves response times and reduces losses.
Beyond these areas, LoRa positioning is also used in construction, insurance, and consumer sectors for tracking high-value assets like equipment, products, and even people.
Currently, two major IoT networks—NB-IoT and LoRa—are rapidly expanding in China. Over 1,000 IoT applications have been deployed across various provinces, with 70% of enterprises actively seeking mature, reliable, and fast-deployable IoT solutions. Many companies are turning to Fuzhou Xiecheng Wisdom Technology Co., Ltd. for products like LoRa gateways, smoke detectors, water sensors, infrared detection systems, and positioning modules. These solutions help businesses quickly launch IoT services and establish themselves as leaders in the growing IoT market, contributing to the global perception that China is at the forefront of IoT development.
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