The Roles of Bluetooth Indoor Positioning and Tracking Solutions

Applied Tech Review | Monday, July 04, 2022

Recently, Bluetooth technology advancements have enabled more effective and accurate low-cost indoor positioning and location services. Today's positioning technology expands beyond detecting the closest beacon to the device to computing the distance and direction with centimeter-level accuracy.

FREMONT, CA: Bluetooth indoor locating and trailing technology is low-cost, energy-efficient, and easy to deploy. This lets users quickly discover and monitor things and people and obtain directions and other critical information inside buildings and facilities such as airports and shopping malls.

Generally, location data can open up more options. For example, location service technologies can be connected with others, such as IoT and analytics, to trigger specific actions based on a user's location or object. Typical use cases incorporate providing customers personalized messaging, running an HVAC system, and sending tailored marketing material.

Bluetooth's benefits include its low cost, excellent energy efficiency, freedom from the network, low interference, and comfort of deployment and integration into the Bluetooth ecosystem.

The operation of Bluetooth location services

Indoor location is accomplished utilizing Bluetooth Low Energy (BLE) beacons that are fixed on objects, walls, ceilings, and other surfaces and transmit radio signals at particular intervals. Devices placed within the emission zone can then discover the signs, determining whether the two (emitter and receiver) are within range of one another.

Generally, BLE beacons lack built-in location intelligence and rely on standard protocols to identify what they send. For example, standard protocols such as iBeacon and Eddystone convey the unique identifiers of the beacons; they also transmit power and other identifiable information.

A regular deployment entails storing the beacons' physical coordinates in an external database or mobile application. This assurance that the values transmitted by the beacons are transformed into real-world coordinates. Estimating a device's approximate location is feasible by comparing signal values, beacon coordinates, and the RSSI.

RSSI is a metric that suggests the electricity of the beacon's signal. While the gap is fantastic, the value is low; the value is extra while the interlude is brief. Particular structures appoint trilateration to improve their accuracy. As the name implies, trilateration takes not less than three beacons to determine the ideal role.

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