Hospital RTLS: what it is and when it pays off

Published on November 7, 2026 · 7 min read

What RTLS is

RTLS stands for Real Time Location System. It is the technology that finds out where people, equipment and materials are inside the hospital and shows it right away, on a map.

In practice, each item gets a tag or a device. The building infrastructure picks up the signal, the platform calculates the position and the answer arrives in words and on the map: “in Room 12”, “near Room 12”, “seen 40 min ago”.

How it works, in four steps

Every RTLS follows the same path, whatever the radio technology behind it.

1. Each item carries a device. A communicator, a smart tag, a beacon or an RFID label.
2. The building listens. Wi-Fi anchors, BLE gateways and RFID readers pick up the signals across the building.
3. The platform calculates. Each technology has its own location engine, and the result converges into a common format: place, floor and time.
4. The answer appears. On the live map, in the 3D digital twin and in words.

Four technologies, one platform

All of them can coexist in the same hospital. The choice depends on what you want to locate and how much precision is worth the cost.

1. Wi-Fi. It uses the hospital network. Each point in the building has its own combination of signal strengths, a fingerprint, and the system compares what the device hears with the floor signal map. It is the basis for locating professionals.
2. BLE (Bluetooth Low Energy). Beacons announce a code and fixed gateways listen to it. Good for carts, infusion pumps and other mobile equipment, and the system processes hundreds of beacons at the same time.
3. RFID. Passive, battery-free labels read by antennas at known places. Gates with direction record entry and exit. Ideal for surgical boxes, trays and points of passage.
4. GNSS. Satellite location in outdoor areas, for the professional who leaves the building.

What the hospital gets

With the position of each item, the hospital gains:

1. Search in words and on the map. By name, type or asset number, with the answer “near Room 12”. Free equipment appears first.
2. History and trail. Where the item is now, where it has been and how long it stayed in each place.
3. Equipment status. Free, in use, dirty or in maintenance, according to the type of place it is in.
4. Minimum stock per department. An alert when a department falls below the minimum of free equipment, and the replenishment task is created.
5. Support for clinical engineering. Equipment not seen for more than 7 days, overdue preventive maintenance and a history of cleaning and calibration per item.
6. Use and idle time. A report in hours and percentage, ranking the least used, to support purchases and reallocation.

An example: the infusion pump

Nursing needs an infusion pump. Instead of walking the floors, they search by name or asset number. The system answers “near Room 12, seen 40 min ago”, shows the point on the map and lists the free equipment first.

In the demo video on the RTLS page, the search takes the whole building in 3D to the equipment in about 15 seconds, and the panel shows the room, the floor, the battery and the last update.

When it pays off

Choose by the problem that weighs the most today. These questions help you decide. If the answer is yes to two or more, an RTLS is worth evaluating:

1. Does the team often search for equipment? Infusion pumps, carts and monitors that “disappeared” are the classic case.
2. Is there doubt whether each department has enough equipment? Minimum stock per department turns that doubt into an alert.
3. Do maintenance and cleaning depend on someone remembering? With the position and status of each item, the to-do lists build themselves.
4. Do you need to know whether the surgical box reached the operating room? An RFID gate records entry and exit.

What RTLS does not promise

RTLS shows the level of certainty it really has: the exact point on the map when there is evidence for it and, when there is not, only the room, only the floor or just proximity. SigaME answers “near Room 12” when that is what it knows.

A few limits are worth knowing. RFID shows presence and passage at known places, not a continuous position. The quality of the position depends on the coverage of anchors and gateways: the better distributed, the better. And changes to the building, such as a renovation, can alter the signal, which is why calibration and quality alerts exist.