Bio-Signal IoT Platform

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Central monitor

Patients grouped by ward, room, gateway or physician on one screen, with live ECG and heart rate, SpO₂, respiration rate and temperature.

• A patient in alarm turns the whole card to the alarm colour
• The grid resizes to the number of patients
• Full-screen mode for wall monitors

02 / 15

Patient live window

Clicking a patient icon or name opens live waveforms, vitals and patch status, with the admission record, clinical information, linked EMR and exam schedule alongside.

• ECG (250 Hz) sweep, 3-axis acceleration, vital tiles
• Patch battery days left, days worn, next replacement
• Item order adapts to the viewer's role

03 / 15

Waveform history

Step back through a patient's past waveforms in 10, 30, 60 or 120-second windows.

• Segments deleted locally are fetched from the backup server automatically
• Fetched data is verified with SHA-256

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Alarms

Thresholds for heart rate, SpO₂, respiration and temperature, lead-off, low battery, unresponsive patches and gateway drop-outs, at four severity levels.

• Severity and unacknowledged chips, ward and type filters
• Selecting a row shows current vitals with acknowledge, live-waveform and map buttons

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Event board

Alarms sounding now and recent events at a glance.

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Hospital map

Patients, gateways and alarms overlaid on floor plans by building and floor.

• High and critical alarms marked with alarm-coloured circles
• Hover for an info tip, click to open the live window
• "Show on map" from any screen jumps to the floor and highlights for 5 seconds

07 / 15

Room zoom

Clicking a room lists its patients and offers a room central-monitor button.

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Gateway dead zones

Gateway coverage and dead zones on the floor plan; a dark theme is available too.

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Patient list

Chips filter the patients who need attention.

• Alarm, lead-off, no signal, low battery, patch change due within a day, out of room
• Wards, rooms and gateways link to each other

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Patients in transit

Patients who left their room for exams, rehab or dialysis, with current step, progress and the step-by-step schedule.

• Next scheduled exam and usage by exam room
• Replacement reminders based on 14 days of wear and about 15.5 days of battery

11 / 15

Operations dashboard

CPU, memory, storage, intake, loss and restarts, from one hour to one year.

• Recorded per minute; summarised hourly after 14 days

12 / 15

Gateways

Gateway status and load.

• Normal, degraded and disconnected chips; building, floor and type filters
• Per-gateway load, retransmission and CRC statistics with connected patients

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Storage and backup

Waveforms are stored per patient, sealed for integrity, then backed up.

• One file per patient (patch) every 2 hours (1–24 h selectable)
• Per-record CRC plus a CRC-32 and SHA-256 seal per file
• Backup to NAS, SMB, FTP, FTPS or SFTP, re-read remotely and checked by SHA-256

14 / 15

EMR integration

Census and admissions/discharges arrive in real time to match patients, and vitals are written back in each EMR's format.

• FHIR R4/STU3, HL7 v2 (MLLP), Korean EMR JSON, EUC-KR XML and CDA R2, REST
• Validated against 20 simulated hospital sites in Korea and abroad

15 / 15

Accounts and permissions

Permissions from menus to in-screen functions to data fields, set to none, view or edit.

• Eight roles; each can only change roles below its own
• Without permission, the server masks personal data and omits vital signs
• Data separated per hospital (tenant), with audit records