RTLS in Hospitals: Asset Tracking, Smart Wards and What to Build First

RTLS in hospitals (real-time location systems) means attaching small tags to equipment, patients or staff, and using sensors in the building to show where each tag is, on a map, in near real time. The most common first use is asset tracking: finding infusion pumps, wheelchairs, monitors and defibrillators without sending nurses on a search through every ward.

RTLS has been around for over a decade, but what has changed is cost, accuracy and what hospitals do with the data. Bluetooth Low Energy (BLE) tags and gateways are far cheaper than earlier systems, and hospitals are using location data for operating theatre status boards, contact tracing, hand hygiene monitoring and patient flow, not just finding lost pumps.

This guide explains the main technologies, the published results from a well-documented deployment, the jobs RTLS does well and badly, costs, and a practical starting plan for Indian hospitals.

What RTLS actually solves

Most hospitals lose time and money in three ways that location data can address:

• Searching for equipment. Nurses and biomedical staff spend time looking for pumps, monitors and wheelchairs, especially during shift changes and maintenance rounds.
• Over-buying and hoarding. When equipment is hard to find, wards keep private stocks, and the hospital buys more than it needs.
• Not knowing where patients are in a process. In OT complexes and emergency departments, staff lose track of whether a patient is in pre-op, in theatre or in recovery.

Newer uses build on the same infrastructure: staff duress badges, hand hygiene compliance, infant security, temperature monitoring for vaccine and blood fridges, and contact tracing.

The technologies compared

There is no single best RTLS technology. Each trades accuracy, cost and infrastructure differently.

A well-documented deployment: Sengkang General Hospital

One of the clearest published accounts comes from Sengkang General Hospital (SKH) in Singapore, which built RTLS and IoT into its operations and announced an expanded collaboration with Cadi Scientific in 2022. According to SKH's announcement:

• Operating theatres: close to 1,000 items of OT equipment are tagged. Equipment search during routine maintenance dropped from 2 to 3 hours to about 5 minutes.
• OT documentation: nurses' time spent mapping equipment use to surgeries fell by 83%, saving about 400 hours a year across roughly 960 procedures.
• Family updates: RFID tags worn by surgical patients feed a status dashboard on waiting-room screens.
• Emergency department: a patient tracking dashboard helps staff find patients for lab results and medicines, and location history cut contact tracing from hours or a day to 10 to 20 minutes.
• Wards: a hand hygiene monitoring system records staff hand cleaning and compliance.

SKH's planned next steps included flagging ED patients with no recent staff contact and using location-aware robots to deliver supplies to bedsides.

Smart beds and contactless monitoring

"Smart hospital" projects often pair RTLS with connected beds and continuous monitoring on general wards. In India, contactless monitoring has been one of the faster-moving areas. Bengaluru-based Dozee, for example, uses a sensor sheet under the mattress that captures micro-vibrations (ballistocardiography) to track heart rate, breathing and other signs and raise early warnings, as described by IndiaAI.

The operational value of continuous ward monitoring is earlier escalation for deteriorating patients, without nurses taking manual vitals every hour. The integration question is the same as for RTLS: alerts must reach the right nurse, and readings must land in the patient record, or they become another screen nobody watches.

What RTLS does badly

Be clear about the limits before buying:

• It does not fix process problems. If nobody returns pumps to a central point after use, RTLS will only show you where they were abandoned.
• Accuracy varies by building. Thick walls, metal and lift shafts affect signals. Walk-through testing is essential.
• Batteries need managing. Active tags need replacement; a maintenance plan is part of the cost.
• Staff tracking is sensitive. Tracking nurses and doctors can feel like surveillance. Use it for safety (duress) and process improvement, not individual performance policing, and be transparent.
• Integration is often missing. Many RTLS deployments run as standalone maps, disconnected from the HMS, biomedical maintenance or inventory systems.

Costs and what drives them

Treat costs as indicative ranges, because they depend heavily on the building and scope. The main cost drivers are:

1. Coverage area. Whole hospital versus OT complex and ICU only.
2. Accuracy needed. Room-level BLE is far cheaper than bed-level or sub-metre systems.
3. Number of tags. Each tracked item needs a tag, and some need special mounts.
4. Infrastructure. Gateways, power and network points. Retrofitting older buildings costs more.
5. Software and integration. Linking location data with the HMS, biomedical maintenance and inventory.
6. Ongoing maintenance. Battery changes, tag replacement and gateway health monitoring.

Where to start: a phased plan

Phase 1: High-value equipment in one zone

Tag infusion pumps, syringe pumps, monitors, defibrillators and ventilators in the ICU and OT complex. Measure search time and equipment utilisation before and after. Link tags to your hospital inventory management and biomedical asset register.

Phase 2: Patient status in OT and ED

Tag surgical patients at admission to show pre-op, in theatre and recovery status. Feed this to the operation theatre management board and to family waiting areas.

Phase 3: Safety and environment

Add staff duress buttons, temperature sensors for drug and blood fridges, and infant security where relevant.

Phase 4: Flow analytics

Use location history for heat maps, turnaround times and capacity planning, and feed it into a hospital command centre or patient flow desk.

Building the business case: a simple worked example

Vendors often quote dramatic savings. It is better to build your own estimate from your own numbers. Here is an illustrative method (the figures are placeholders, not benchmarks):

1. Measure search time. Ask ICU and ward nurses to log every equipment search for two weeks. Suppose they log an average of 40 searches a day across the hospital, averaging 12 minutes each. That is 8 nurse-hours a day.
2. Estimate what RTLS saves. If tracking cuts each search to 2 minutes, you recover about 6.7 nurse-hours a day, or roughly one nurse per shift spent on care instead of hunting.
3. Count your fleet and its use. List infusion pumps, monitors and wheelchairs, and estimate their average utilisation. Low utilisation alongside constant shortages usually means hoarding and poor return processes.
4. Estimate avoided purchases. If better visibility means you can defer buying 20 new pumps next year, that capital saving often outweighs the tag cost.
5. Add maintenance gains. Biomedical engineers can find devices due for preventive maintenance or recall quickly, which matters for NABH and patient safety.
6. Compare with total cost. Include tags, gateways, software, integration and three to five years of battery and tag replacement.

This approach also gives you a baseline to measure against after go-live, which is far more convincing to a board than a vendor's case study.

Common mistakes

• Tagging everything at once. Start with expensive, mobile, frequently searched items.
• Skipping the walk-through test. Confirm accuracy in your actual building before signing.
• No return process. Pair tracking with clear "clean and return" points for shared equipment.
• Forgetting staff communication. Explain why tags are used and what is, and is not, tracked.
• Leaving data in the vendor map. If location data does not reach the HMS, inventory and biomedical systems, most of its value is lost.

Questions to ask vendors

• What accuracy do you guarantee in our building, and how will you test it before we sign?
• What is the battery life of each tag type, and who replaces them?
• Do you provide APIs or HL7/FHIR interfaces to share location and status data with our HMS?
• Can we own and export our location history?
• How are staff location data protected and who can see it?
• What happens to tracking if a gateway fails?

Data protection in India

Patient and staff location data can identify individuals, so it falls under the DPDP Act 2023 and DPDP Rules 2025. Give clear notice to staff and patients, limit use to stated purposes, set retention periods and restrict access. Our DPDP Act checklist for hospitals covers the practical steps.

How Algon helps

At Algon, we focus on the software side: connecting RTLS and IoT platforms to the hospital management system, inventory and biomedical modules, and building the dashboards that turn location into action. Where you already have a vendor's location engine, healthcare integration work makes its data useful inside your existing workflows.

Conclusion

RTLS in hospitals has matured from a niche asset-finding tool into infrastructure for OT status boards, contact tracing, hand hygiene and patient flow. Sengkang General Hospital's results show what is possible when location data is designed into daily work. For most Indian hospitals, the sensible path is a contained pilot (high-value equipment in ICU and OT), clear before-and-after measurement, and tight integration with the HMS and inventory, before expanding to the whole building.