EN IT

RTLS REAL TIME LOCATION SYSTEM

RTLS systems are used to identify and track the position of objects and people within closed environments in real time.

A system is usually made up of Hardware components (active TAGs and Receivers), as well as Software application that can determine the location of the TAGs in a defined area based on the signals it receives and on dedicated algorithms.

In the most common applications wireless TAGs are applied to the object to be identified, while receivers are placed in the defined area to detect the TAGs signal and determine its location.

RTLS systems are used to manage warehouses and stores, to track the movement of assets, forklifts, pallets or containers in motion.

RTLS technologies can have a variety of features. These can be selected according to the application that must be implemented and the applicable requirements. Here is some basic information regarding the most common use cases:

RTLS BLUETOOTH BLE

The Beacon solution is an indoor positioning system. It uses low power and low cost devices that take advantage of Bluetooth Low Energy technology (BLE), also known as Bluetooth Smart and identified with the Bluetooth 4.0 versions or higher.

The system is made up of one or more Beacons (BLE Bluetooth transmitters) placed along the route to be tracked, and a Bluetooth BLE receiver, which is usually a smartphone.

The technology allows a device with Bluetooth BLE technology to detect the signals of one or more Beacons nearby, taking advantage of the proximity perception of the Bluetooth Low Energy to calculate the position.

UWB ULTRA WIDE BAND RTLS

The system usually has a TAG that transmits a UWB (Ultra Wide Band) frequency and a receiver able to detect its position. The receiver does this using the signals it receives as well as dedicated algorithms and the triangulation of signals . Using UWB frequencies greatly increases localisation accuracy. At the same time, the system becomes more critical towards the environment it is used in.


WI-FI RTLS

The system is based on the triangulation of signals detected in at least three Wi-Fi detection points, which determine the positon of the TAG using sophisticated algorithms.
The TAG is equipped with a Wi-Fi module but it si possible to detect the position of any device integrated with standard Wi-Fi such as a table or smartphone.
With this solution it s possible to use the existing Wi-Fi network taking into account certain adjustments and improvements of coverage in the target area.
The results are good in closed environments that are fragmented by walls, such as in a hospital setting or in buildings where the solution is used to track the real time position of assets like medical equipment or staff.

OPTICAL RTLS

This solution involves installing a video camera on a forklift, while in the warehouse aisles and in proximity to the places where goods are stored markers are placed.
Markers are plaques or graphic stickers that are detected by the video camera and interpreted as local positions, then sent to the CMS using wireless technology.
According to the signals detected and the dedicated algorithms, the software application determines the real time position of the forklift, guiding it to retrieve or position the goods. This optimises routes and tracks the movement of goods in real time.