Waiting Room Management & Patient Flow.IoT Blueprint.
The problem: Overcrowded waiting areas and stressed reception staff. The solution: An invisible digital guidance system with anonymous sensors.
- Occupancy of all areas in real-time
- 100% GDPR-compliant - no cameras, no faces
- Traffic light system at reception: Green/Yellow/Red
The Bottleneck at Reception.
In large practices, medical centers, or emergency rooms, overview is often lacking. Reception staff don't know:
The consequence: Patients are sent to overcrowded areas, rooms stand empty, and staff constantly have to get up and check ("sneaker interface").
Transparency Through Sensors.
We install a LoRaWAN sensor network that measures occupancy without violating privacy.
Waiting Areas
Ceiling sensors count heads - anonymized and GDPR-compliant.
Treatment Rooms
Presence detectors recognize whether a room is occupied - even for people with minimal movement.
Control Center
A tablet at reception shows the live situation in a traffic light system.
The Ingredient List.
Proven hardware for healthcare use
Milesight VS133
AI ToF People Counter
- Time-of-Flight infrared - no video image, only point cloud
- 99.8% accuracy, even in full rooms
- Privacy by Design - facial recognition impossible
Milesight VS341
Desk/Room Occupancy Sensor
- Detects presence even with minimal movement
- Ideal for sitting people (doctor at desk)
- Battery-powered - no wiring needed
Dashboard
Grafana / Custom App
- Real-time display of all areas at a glance
- Automatic notifications on overload
- Access via tablet, PC or smartphone
From Sensor to Control.
Raw data isn't enough. We program the logic behind it (merkaio dev):
if (waitingRoom.count < 10) {
status = "GREEN"
} else if (waitingRoom.count > 15) {
status = "RED"
redirect → "Bereich B"
}if (room.usageCount >= 10) {
notify("Reinigung")
→ "Raum 5 desinfizieren"
}// Dienstag 10-12 Uhr
if (avg_occupancy > 130%) {
recommendation:
"Schichtplan anpassen"
}Is This Allowed?
Yes. The system is "Privacy by Design".
merkaio WaitWatch
We developed our own software based on this architecture: WaitWatch - a complete waiting room monitoring system with real-time dashboard, treatment room status, and analytics.
Discover WaitWatch
This Technology Also Works For:
Cafeteria Occupancy
Employees see in the intranet if there's space in the cafeteria.
Museum Visitor Counting
Admission control for large exhibitions.
Leading companies worldwide trust merkaio
“With Timo and Robin, you're not only on the safe side technically - you also get the best human support! Whether it's quick help in everyday life or complex IT solutions: the guys from merkaio think along with you, act quickly and speak a language you understand. The collaboration is uncomplicated, reliable and always on an equal footing. That makes IT fun - and above all: it works! Big thank you to the team!”
Sonja Aßer
Data Manager, ARGE, Germany
“I got to know Timo and Robin as dedicated and professional partners who make a lot of things possible for their clients that initially seem impossible. I felt very well advised. The services offered have thoroughly convinced me.”
Andrea Pawlowski
Communications Manager, Golem.de, Germany
“I recently worked with Timo and the merkaio team, and honestly, it turned out to be one of the best tech decisions I have made for my business. Right from the start, Timo took the time to walk me through every step in a simple and calm way. No matter how many questions I had, he never rushed me. The results speak for themselves. With merkaio, we reduced our monthly expenses from $1,300 down to $250. This was a huge win for us.”
Aleksandr Shuliko
CTO, EVA Real Estate, UAE
“merkaio manages our Proxmox cluster reliably and professionally. The team handles continuous monitoring and regular updates for us and responds very quickly to any issues or inquiries. They also configure new nodes, systems, and applications that we need to add to our cluster. With merkaio's proactive support, our cluster and the business-critical applications running on it remain stable, and high availability is consistently ensured. We value the professional collaboration and the noticeable relief it brings to our daily operations.”
Pascal Hakkers
CEO Aphy B.V., Netherlands
“Counting on the merkaio team was crucial, their expertise and solutions gave us the pace to deploy in production our services, even suggesting and performing improvements over our configuration and setup. We expect to keep counting on them for continuous maintenance of our services and implementation of new solutions.”
Gabriel Sanz Señor
CEO Odiseo Solutions, Spain
“From the initial consultation to the final implementation, everything was absolutely professional, efficient, and to my complete satisfaction. I particularly appreciate the clear communication, transparent pricing, and the comprehensive expertise that both bring to the table. They take care of the maintenance, which frees up my time enormously and allows me to focus on other important areas of my business - with the good feeling that our IT is in the best hands. I can recommend merkaio without reservation!”
Sebastian Maier
CEO Yonju GmbH
“We have had very good experiences with Mr. Wevelsiep and merkaio. The consultation was professional, clearly understandable, and at fair prices. The team not only implemented our requirements but also thought along and proactively. Instead of just processing individual tasks, they provided us with well-founded explanations that strengthened our own understanding. merkaio took a lot of pressure off us with their structured approach - that was exactly what we needed and is the reason why we keep coming back.”
Matthias Zimmermann
CEO Annota GmbH
“Robin and Timo provided excellent support! We received truly competent advice and will gladly return to their services in the future.”
Simon Deutsch
CEO WiseWhile UG
Let's start your IoT project. Digital and on-site.
We don't just deliver software - we deliver the complete solution. From selecting and installing sensors in your facility to secure cloud operations. Talk to engineers who can do both.
Your contact
Timo Wevelsiep
Lead IoT Solutions Architect