How RTLS helps prevent patient wandering in healthcare

Patient safety increasingly depends on real-time location awareness

Healthcare facilities are complex environments where patients, caregivers, visitors and medical equipment constantly move across rooms, corridors, departments and buildings.

For patients at risk of wandering, leaving a designated care area or entering a restricted zone, knowing where a patient is in real time can make a significant difference.

Traditional approaches to patient monitoring often rely on manual observation, fixed alarms or staff physically checking rooms and corridors. These methods can be difficult to scale across large hospitals, memory care facilities, psychiatric units and senior living campuses.

A Real-Time Location System (RTLS) provides another layer of protection. By combining indoor positioning, wearable devices and geofencing, healthcare organizations can automatically detect when a patient approaches or crosses a predefined boundary and alert caregivers in real time.

The result is a more proactive approach to patient safety: care teams can know where a patient is, understand when a movement requires attention and respond before a situation becomes critical.

Pole Star provides indoor location and RTLS solutions designed to give healthcare organizations real-time visibility of people and assets across complex facilities. Its healthcare platform supports patient safety, staff protection, equipment tracking and indoor navigation from the same location infrastructure.

What is RTLS in healthcare?

RTLS, or Real-Time Location System, is a technology that continuously determines the location of tagged people or assets inside a defined environment.

In healthcare, RTLS can be used to locate:

• Patients and residents
• Nurses and caregivers
• Doctors and healthcare staff
• Medical equipment
• Wheelchairs and beds
• Infusion pumps
• Emergency equipment

Unlike GPS, which is primarily designed for outdoor positioning, healthcare RTLS uses indoor technologies such as Bluetooth Low Energy (BLE), Wi-Fi and smartphone sensors to determine positions inside buildings.

A typical healthcare RTLS architecture combines:

1. A wearable tag or smartphone carried by the patient or staff member.
2. BLE/Wi-Fi infrastructure that detects the device.
3. An indoor positioning engine that calculates the location.
4. Digital maps and geofences defining safe and restricted areas.
5. A supervision interface where caregivers can see locations and alerts.
6. Integrations and APIs connecting location data with existing healthcare or safety systems.

Pole Star’s NAO® platform uses BLE and Wi-Fi infrastructure to provide real-time indoor positioning and can operate on existing networks, including Cisco, Aruba and Fortinet environments.

Why patient wandering is a critical safety challenge

Patient wandering can occur in several healthcare environments, including:

• Memory care and dementia facilities
• Senior living communities
• Psychiatric units
• Behavioral health facilities
• Post-operative recovery areas
• Long-term care facilities
• Hospitals treating patients with cognitive impairment

The risk is not necessarily that a patient is moving. Movement itself can be perfectly normal.

The safety issue arises when a patient’s movement becomes inconsistent with their care plan—for example, when they leave a safe ward, approach an exit or enter an area where they should not be.

This distinction is important because effective patient safety technology should not necessarily prevent movement. Instead, it should help caregivers understand when movement requires intervention.

This is where real-time location and geofencing become particularly valuable.

How RTLS detects patient wandering

An RTLS-based wandering detection system creates predefined geographical zones inside the healthcare facility.

A patient’s wearable device continuously communicates with the indoor positioning infrastructure. The system determines the patient’s location and compares it with the configured zones.

For example:

• A patient remains inside their safe zone → no alert.
• The patient approaches a predefined boundary → an early warning can be generated.
• The patient crosses into a restricted zone → an immediate geolocated alert is triggered.
• Caregivers can see the patient’s current location and respond accordingly.

This approach turns patient monitoring from a reactive process into a real-time safety workflow.

Example of an RTLS patient safety workflow

The principle is simple: the system does not need to alert staff every time a patient moves. It alerts them when movement crosses a predefined safety rule.

RTLS and geofencing: creating virtual safety zones

One of the most important technologies behind patient wandering detection is geofencing.

A geofence is a virtual boundary defined on an indoor map. It can represent a room, ward, corridor, floor, entrance, exit or other area.

Healthcare teams can configure different types of zones depending on the patient’s care plan.

Safe zones

These are areas where a patient can move freely.

For example:

• Patient room
• Care ward
• Dining area
• Activity room
• Garden
• Common areas

Movement inside these zones does not generate an alert.

Warning zones

These zones can be used to detect that a patient is approaching an area requiring attention.

For example:

• Corridor leading toward an exit
• Elevator area
• Stairwell
• Transition between wards

A warning can give caregivers time to intervene before the patient crosses the final boundary.

Restricted zones

These are areas that a particular patient should not enter.

Examples include:

• Emergency exits
• Staff-only areas
• Medication rooms
• Technical rooms
• Certain hospital departments
• External access points

When the patient enters a restricted zone, the system can generate an immediate location-based alert.

Real-time location awareness gives caregivers more than an alarm

An important advantage of healthcare RTLS is that it does not simply tell staff that something happened.

It can also tell them where it happened.

That distinction is critical.

A conventional alarm might indicate:

“Patient safety alert.”

An RTLS-enabled system can provide much more actionable information:

“Patient has crossed the restricted-zone boundary near the east entrance.”

The caregiver can then immediately see the patient’s location on a digital map and determine the most appropriate response.

Pole Star’s healthcare platform is designed around this principle of real-time location awareness, combining patient geolocation, zone-based alerts and supervision capabilities.

How RTLS improves patient safety

1. Faster response to unauthorized movements

When a patient leaves a predefined safe area, an automated alert can reach the responsible team immediately.

Caregivers no longer have to discover the situation during a routine check or rely on another person noticing the patient is missing.

The earlier staff know, the more options they have to respond calmly.

2. Reduced time spent searching for patients

When a patient cannot immediately be located, caregivers may need to search rooms, corridors, common areas and different floors.

Real-time patient location can significantly reduce this uncertainty.

Instead of starting with:

“Where could the patient be?”

staff can start with:

“The patient is currently located here.”

This can be particularly valuable in large hospitals and multi-building healthcare campuses.

3. More discreet intervention

Patient safety does not necessarily mean restricting freedom of movement.

A well-designed RTLS system can support early intervention.

For example, a caregiver could receive an alert when a resident approaches an exit rather than waiting until the resident has already left the building.

This creates an opportunity to intervene discreetly while preserving the person’s autonomy.

Pole Star’s approach to resident wandering detection specifically combines indoor location and geofencing to detect abnormal movements or unauthorized exits while allowing residents to continue moving freely within safe areas.

4. Continuous visibility across complex facilities

Hospitals and healthcare campuses can contain multiple floors, wings and interconnected buildings.

A real-time location platform can provide a unified view of monitored patients across these environments.

This is particularly useful when healthcare organizations operate:

• Multiple wards
• Multiple buildings
• Large senior living campuses
• Multi-site healthcare networks

Pole Star has demonstrated this type of deployment at Brighton Health Campus, where its RTLS platform covers three interconnected buildings and uses 360 geofencing zones for staff and resident safety workflows.

RTLS vs traditional patient monitoring

RTLS does not necessarily replace existing patient safety processes. Instead, it can add a real-time location layer to them.

The key difference is context.

An RTLS does not simply generate another alarm. It connects the alert to a person’s location and the rules defined for that specific environment.

What technologies power healthcare RTLS?

Several technologies can contribute to an indoor positioning system.

Bluetooth Low Energy (BLE)

BLE is widely used for indoor positioning because it can support small, low-power wearable tags and can leverage existing wireless infrastructure.

Wi-Fi

Existing Wi-Fi infrastructure can provide part of the positioning environment and reduce the need to deploy an entirely separate network.

Smartphone positioning

Healthcare professionals can use smartphones as location devices, particularly for staff safety applications.

Geofencing

Geofencing translates location data into actionable rules by defining virtual areas and boundaries.

RTLS software

The location engine processes signals, calculates positions and distributes real-time information to supervision interfaces and connected applications.

Pole Star combines these technologies within its NAO® location platform, including NAO® Track, NAO® Mobile and NAO® Viewer for real-time location, mobile positioning and supervision.

Beyond wandering detection: one RTLS platform for healthcare

The value of healthcare RTLS goes beyond patient wandering.

The same indoor location infrastructure can support multiple use cases across a healthcare organization.

Patient safety

Track patients and detect movements across predefined zones.

Staff safety

Enable healthcare workers to trigger geolocated emergency alerts from badges or smartphones.

Medical equipment tracking

Locate beds, wheelchairs, infusion pumps, diagnostic equipment and other mobile assets.

Wireless nurse call

Associate assistance requests with the precise indoor location where they were triggered.

Patient wayfinding

Help patients and visitors navigate complex hospital environments.

Operational analytics

Analyze movement patterns and asset utilization to improve healthcare operations.

This multi-use-case approach is particularly important for hospitals because one location infrastructure can support several operational and safety workflows rather than creating isolated technology deployments.

You can explore Pole Star’s complete healthcare RTLS solution and its healthcare indoor location platform to understand how these use cases connect.

A real-world example: Brighton Health Campus

A practical example of this approach is Brighton Health Campus, a healthcare and senior living environment covering three buildings and approximately 7,700 m².

Pole Star deployed a unified indoor location platform supporting:

• Staff duress
• Wireless nurse call
• Resident wandering detection
• Real-time indoor positioning
• Geofencing

The deployment included 360 geofencing zones and more than 70 resident wearables.

For resident safety, wearable devices provide continuous monitoring while geofencing rules detect abnormal movements and unauthorized exits.

The objective is not to prevent residents from moving. It is to give care teams the information they need to intervene when a movement becomes potentially unsafe.

Read the full Brighton Health Campus RTLS case study.

What should healthcare organizations consider when choosing an RTLS?

Not every RTLS deployment has the same requirements.

Before selecting a patient tracking or wandering detection solution, healthcare organizations should evaluate several factors.

Accuracy

Can the system provide sufficiently precise indoor positioning for the intended use case?

For patient safety, room-level or zone-level information can be particularly valuable.

Scalability

Can the system expand from one ward to multiple floors or buildings?

Infrastructure requirements

Can the solution use existing Wi-Fi and BLE infrastructure, or does it require a completely new network?

Integration

Can location events be connected to existing nurse call, staff safety, clinical or security systems?

Privacy and governance

How is patient location data handled, stored and protected?

Alert management

Can different zones, patients and risk profiles have different rules?

Reliability

Can the system provide continuous location awareness in complex indoor environments?

Pole Star’s healthcare platform is designed to integrate with existing infrastructure and supports cloud, on-premise and hybrid architectures, allowing healthcare organizations to adapt deployment to their IT and data governance requirements.

The future of patient safety is increasingly location-aware

Healthcare organizations are under pressure to improve patient safety while managing increasingly complex facilities and limited staff resources.

Real-time location technology provides an important piece of that equation.

Instead of relying exclusively on periodic checks or reactive alarms, healthcare teams can build workflows around continuous location awareness.

For patients at risk of wandering, this means:

Know where the patient is → understand where they are moving → detect when they approach a risk zone → alert the right caregiver → intervene quickly.

For healthcare organizations, the opportunity goes further.

The same RTLS infrastructure can support patient safety, staff protection, medical equipment tracking, nurse call, wayfinding and operational intelligence.

That makes RTLS more than a patient tracking technology. It becomes a real-time location layer for the entire healthcare facility.

Frequently asked questions