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As is known to all, Bluetooth is typically used in indoor scenarios with its high level of precision. Recent years have seen the rapid developing speed of Bluetooth and the related location services have reached a greatly high level of accuracy. One of the innovative features has been embedded to enhance precision level is Angle of Arrival (AoA). In this article, we explore the principles, benefits, and also a wide array of applications of AoA.

How AoA works

AoA is a method that helps estimate direction by making use of the antenna arrays and phase differences of the Bluetooth signal. The main point of the AoA technology lies in the great ability to calculate the angle between an AoA tag and an AoA base station, which act as an asset node and locator respectively.

Typically, asset node transmits a Bluetooth signal using a single antenna, while the locator node is equipped with at least two antennas to set up an antennas array. When the asset signal sends out and passes through this array, the wave path and phase of the signal to each antenna vary due to the space difference among antennas. The locator node subsequently performs IQ sampling of the received signal on each antenna to obtain phase information. According to the phase difference and the geometric layout of the antenna array, the direction of the received signal can be calculated by using the signal angle estimation algorithm.

Advantages of Bluetooth AoA

Bluetooth AoA technology stands out among traditional positioning systems due to its great advantages. Firstly, AoA delivers high sub-meter level accuracy in indoor environments, where GPS signals are often unavailable. Such high precision can make a difference in applications requiring precise location tracking.

Also, the widespread adoption and compatibility of Bluetooth enables AoA to provide a seamless integration. This means organizations can utilize existing Bluetooth-enabled devices and infrastructure to implement AoA positioning without the needs to install additional hardware. This compatibility and flexibility make easy scalability and upgradability, reducing deployment time and costs.

Based on the Bluetooth technology, AoA still maintains relative lower consumption and costs, ideal for a wide range of applications. This advantage enables relative longer lifespan for the devices integrated in AoA system.

Applications of Bluetooth AoA

The high-precision and low power consumption features of AoA technology play a vital role in various application scenarios, offering great possibilities and feasible solutions for smarter applications. Here are some of use cases in the real world:

Asset Tracking and Personnel Monitoring: In industries such as manufacturing, warehousing, and healthcare, Bluetooth AoA technology enables real-time assets tracking and personnel monitoring, improving operational efficiency and safety. Moreover, the ability of AoA to pinpoint the exact location of misplaced items or personnel needed to be rescued is valuable in environments where time is vital.

Indoor Navigation and Positioning: AoA solutions offer real-time location tracking due to the continuous broadcast of Bluetooth signals. In shopping malls, airports, hospitals and other complex indoor settings, AoA provides users to have an accurate positioning and navigation guidance, enhancing customers’ experiences.

Proximity-based Marketing: By leveraging the precise location data AoA system collects, businesses can deliver personalized push notifications or advertisements to their customers nearby to enhance their engagements.

Apart from these applications, the AoA technology can be also applied in other applications like socially distanced meeting and robotics collision avoidance. The core of the AoA applications lies in the high-level precision, which enables it to pinpoint the exact location of signals with remarkable accuracy.

Bluetooth AoA technology represents a significant step forward in indoor positioning systems. Its high accuracy, low power consumption, and compatibility with existing Bluetooth infrastructure make it an ideal solution for a diverse range of applications. From indoor navigation and IoT device tracking to location-based marketing and emergency response, Bluetooth AoA is poised to revolutionize how we interact with our surroundings, enhancing convenience, efficiency, and safety. As the technology continues to evolve, its potential applications will only continue to expand, ushering in a new era of smart navigation and positioning.

Introduction of MOKO AoA Device

MOKO SMART, the pioneering manufacturer of IoT hardware solutions, has introduced its groundbreaking high-precision positioning Locator based on AoA technology. This AoA Locator utilizes a powerful CLE positioning algorithm engine, delivering accurate and timely location data. In order to cater to the diverse needs of businesses, it also provides an open API interface for easy and rapid integration into a wide array of application platforms. When paired with AoA-enabled personnel or asset tags, this Locator achieves sub-meter accuracy within a wide scan coverage area, up to 500 square meters in open spaces. The innovative design of the AoA Locator allows for extensive versatility and adaptability, making it an ideal solution for various applications requiring pinpoint location tracking.

Moreover, MOKO SMART also offers a complete solution – the AoA Demo Kit, equipped with three AoA Locators, eight different AoA tags and necessary software. This AoA Kit boasts impressive features such as minimal error in location tracking for high accuracy, and concurrency capabilities to handle multiple tags simultaneously, ensuring accurate and efficient tracking even in busy environments.

Holding initial visions, MOKO SMART continues to innovate and push the boundaries of IoT technology with comprehensive and powerful solutions, setting new standards in the field to achieve high-precision positioning. For more information, do not hesitate to contact us!