Cities
When cell towers are overloaded
In a major incident, thousands of calls compete for the same towers. The mesh runs alongside and is not affected by the congestion.
A shared operational picture in mass-casualty incidents
Guardian Chain links physical triage tags to a digital patient record, so everyone in the chain of care sees the same picture, in real time.
- Works without a connection
- One tag ID through the whole chain
- Encrypted on site
Operational pictureExercise
Live3
Priority 1
7
Priority 2
12
Priority 3
2
Expectant
Positions
Events
- GC-5DN714:05assigned to transport
- GC-8VR214:04vital signs recorded
- GC-3KX914:03scanned at collection point
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Paper, whiteboards and radio only go so far
In a mass casualty incident, police, healthcare, fire and rescue services and the Armed Forces work at the same time – with different tools and each with only part of the picture.
Today
Command post
Police
Paper tags
Whiteboard
Radio
Healthcare
Paper tags
Whiteboard
Radio
Fire and rescue
Paper tags
Whiteboard
Radio
Armed Forces
Paper tags
Whiteboard
Radio
? ? ?
With Guardian Chain
Command post
Police
Healthcare
Fire and rescue
Armed Forces
radio for voice
Guardian Chain
triage card + appOne shared picture
Information is lost between teams
What is noted at the scene does not always reach the next link in the chain of care.
No shared operational picture
Command lacks a combined view of patients, priorities and where they are.
Decisions are delayed
As casualties increase, priorities and transports are planned on incomplete information.
One tag follows the patient all the way
The tag ID connects the scene, the collection point, transport and receiving care. Every link sees the same record.
Step 1 · Haemorrhage
✓ Tourniquet · 14:03…
PRIO 1
Scan or tap the card
MCI-000042
Step 1 · Haemorrhage
✓ Tourniquet · 14:03…PRIO 1
Scan or tap the card
MCI-000042
1Triage
Scene
The patient gets a pre-printed triage tag with a QR code and an NFC chip. The priority is visible on the tag.
- PATIENT RECORDMCI-000042PRIO 1
I — INJURIES
Status:At incident siteHR
–
—
SpO₂
–
—
BP
–
—
T — TREATMENTS
X
TQ14:03
A
B
C
D
E
Timeline
- 14:04Card scanned, record createdIncident site
- 14:03Tourniquet left thighIncident site
- 14:02Triaged Prio 1Incident site
2Scan
Collection point
The tag is scanned or tapped with a phone and linked to a digital record. Nothing is written down twice.
- PATIENT RECORDMCI-000042PRIO 1
I — INJURIES
Status:At incident siteHR
–
—
SpO₂
–
—
BP
–
—
T — TREATMENTS
X
TQ14:03
A
B
C
D
E
Timeline
- 14:04Card scanned, record createdIncident site
- 14:03Tourniquet left thighIncident site
- 14:02Triaged Prio 1Incident site
3Follow
Transport
The record travels with the patient. Treatments and vital signs are logged in transit, even without coverage.
- PATIENT RECORDMCI-000042PRIO 1
I — INJURIES
Status:At incident siteHR
–
—
SpO₂
–
—
BP
–
—
T — TREATMENTS
X
TQ14:03
A
B
C
D
E
Timeline
- 14:04Card scanned, record createdIncident site
- 14:03Tourniquet left thighIncident site
- 14:02Triaged Prio 1Incident site
4Receive
Receiving care
Receiving care sees who is on the way, at what priority and what has been done – before arrival.
- 5
Lead
Command post
A shared operational picture of the scene, updated in real time for all involved responders, provides the basis for faster decisions and better resource allocation.
Built to work when the network doesn't
Small nodes in the field, a hub on site and the cloud when there is a connection. Each layer works on its own.
Hub · Mesh
0queued, syncs when connected1 284synced
Field nodes
Share position and reports over an encrypted LoRa mesh, with no mobile coverage at all.
On-site hub
Keeps everything local and encrypted, runs the operational picture and uses 5G when available.
Cloud
Syncs when a connection is available and gives command and follow-up a combined view.
Works where the mobile network falls short
The hubs use 5G and mobile networks when they are available. When they are not, their own encrypted mesh network takes over – LoRa, with up to 10 km between hubs and nodes depending on terrain.
- 5G and mobile networks when available
- Encrypted LoRa mesh, up to 10 km
- Switches automatically
Metro
Underground
Mobile coverage does not reach tunnels and platforms. Nodes pass reports on hop by hop until they reach a hub.
High-rise buildings
Behind concrete walls
Concrete and rebar block signals. Nodes in stairwells and on each floor form a chain up and out of the building.
Mountains and archipelago
Where coverage is thin
Long distances and few towers. With up to 10 km per hop, one hub can cover a large area on its own.
Map support for coordination
The people in charge see where hubs and nodes are and how they reach each other – so resources can be placed where they are needed.
- Hub
- Node
- Mesh link
- Range
Built for darkness, rain and gloves
Few steps, large touch targets and clear roles. The system supports the tags – it does not require paper to disappear.
CCP
The tag always works
The physical tag carries the information even when the technology does not.
Works offline
Everything works on the device and syncs when a connection is available.
Encrypted local storage
Patient data is stored encrypted, on site too.
Every action is logged
The record is event-based, so every action can be traced afterwards.
For the people who work in the chain of care
Regions and prehospital care
From first assessment to the receiving hospital.
Fire and rescue services
An overview of casualties during the response.
Police
The same picture of the situation as everyone else.
Defence
Works where regular infrastructure is missing.
In development
We welcome agencies to run pilots with us
We invite agencies to run pilots with Guardian Chain and evaluate the system in their own operations. If your organisation wants to run a pilot or learn more, get in touch.
Prototypes
Done
Verification
In progress
Pilots and exercises
Next