Hospital LoRaWAN Communication Bridge
Two hospitals under the same healthcare group needed to share nurse call alerts and response data between their facilities — separated by nearly 2 kilometers. Their existing RS485-based wired system worked well within each hospital but couldn’t extend communication across that distance without massive cabling costs and civil work.
That’s where Macnman Technologies came in. Using MacSet LoRaWAN Controllers on both ends, we created a long-range wireless communication bridge that transmitted RS485 RTU data securely and reliably between the two buildings.
Without changing a single line of their existing system, the hospitals gained real-time cross-facility visibility, faster emergency coordination, and a cost-effective communication backbone powered entirely by LoRaWAN
The Challenge: Distance That Broke Communication 📡
Despite having a reliable wired nurse call system in each hospital, the two facilities faced critical connectivity issues:
imited Range
Temperature and voltage deviations were often spotted too late during manual checks.
High Infrastructure Cost
Extending cables across public roads and existing structures would’ve required permits, downtime, and significant expense.
Data Isolation
Each hospital operated as a standalone system — alerts, acknowledgments, and response times were not visible to the other side.
Delayed Coordination
In emergencies, manual communication between facilities slowed down staff response and created confusion.
Proposed Solution: LoRaWAN-Enabled Hospital Connectivity 🏥
Macnman Technologies created a wireless bridge between the two hospitals’ existing nurse call systems, keeping the workflow intact while enabling real-time cross-facility communication.
- 01
Seamless RS485 Integration
Connected to the existing nurse call units without altering any hardware.
- 02
Long-Range LoRaWAN Link
Established a 2 km wireless connection between the two hospitals.
- 03
Real-Time Alerts
Shared trigger signals instantly across both facilities.
- 04
Non-Intrusive Deployment
No rewiring, downtime, or infrastructure modifications required.
- 05
Reliable & Secure
Maintained consistent communication in a hospital environment with low latency.
- 06
Scalable Setup
Future expansion possible for additional buildings or facilities.
LoRa System Architecture: Bridging Hospitals Wirelessly
Deployment: MacSet Controllers in Action ⚡
The deployment focused on creating a seamless, wireless bridge between the two hospitals’ existing nurse call systems, without any changes to their infrastructure.
MacSet LoRaWAN Controller – Hospital A
Connected to the RS485 nurse call system, capturing alerts and status updates.
MacSet LoRaWAN Controller – Hospital B
Already installed RS485 based nurse call system.
Industrial Access Points
Provided stable Wi-Fi coverage across the test area, creating a secure and high-throughput communication backbone for uninterrupted data transmission.
Dashboard Integration
Real-time monitoring for hospital staff to track alerts and responses across both facilities.
Deployment Challenges: Power, Precision, and Protection ⚡
Long-Range Communication
Maintaining reliable LoRaWAN connectivity across urban and open areas required careful placement and signal optimization.
RS485 Compatibility
Ensuring the existing nurse call systems communicated seamlessly with MacSet Controllers without altering hardware.
Low Latency Requirement
Rugged IP67 enclosures and vibration-resistant mounting kept the nodes and controllers operational.
Environmental Interference
Hospital buildings, walls, and electronic equipment could interfere with wireless signals, requiring strategic controller positioning.
Impact: Smarter Testing, Safer Operations 🚀
Real-Time Alerts
Nurse call signals now travel instantly across both facilities, improving response times.
Enhanced Coordination
Staff at either hospital can see and act on alerts from the other location immediately.
Zero Infrastructure Changes
Automated fault detection and event logging allowed preventive maintenance before failures occurred, increasing rig availability.
Reliable Long-Range Link
LoRa ensures consistent performance over 2 km with low latency.
Validation and Testing: Proven Reliability ✅
Signal Strength & Range Test
Verified LoRaWAN coverage across the full 2 km distance, ensuring no dead zones.
RS485 Integration Test
Confirmed that all nurse call alerts and acknowledgments transmitted correctly through the MacSet Controllers.
Latency Verification
Continuous Wi-Fi data transmission was tested under simultaneous multi-rig operation. The network maintained real-time updates with zero packet loss for over 72 hours of continuous testing.
Continuous Monitoring Trial
Ran the system for several days continuously to confirm stable performance and reliability.
Conclusion: Connected Hospitals, Faster Care 🏥
Macnman Technologies successfully bridged two hospitals 2 km apart using MacSet LoRaWAN Controllers, enabling seamless communication between their existing nurse call systems.
Without any rewiring or infrastructure changes, the hospitals now benefit from:
• Real-time cross-facility alerts
• Improved emergency response times
• Reliable, low-latency communication
• Scalable and non-intrusive deployment
This solution transformed isolated nurse call systems into a connected, efficient, and safer network, improving patient care and staff coordination effortlessly.
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