Initializing EquaLife Systems…
Smart Position Monitoring for Patient Safety
A wearable IMU-powered system that silently watches over bedridden patients, detecting dangerous inactivity and alerting caregivers before pressure ulcers form.
Every year, millions of bedridden patients develop pressure ulcers — painful, costly, and largely preventable.
Also called bedsores, they form when sustained pressure cuts off blood flow to skin and underlying tissue. They develop in as little as 2 hours on bony prominences like the hips, heels, and sacrum.
Patients with limited mobility cannot reposition themselves. Paralysis, sedation, surgery recovery, and critical illness all dramatically increase ulcer risk, especially in ICU and long-term care settings.
Nursing staff must manually track each patient's repositioning schedule. With high patient-to-nurse ratios, monitoring every individual continuously is practically impossible without technology.
Position checks every 2 hours are the clinical standard — but gaps happen. EquaLife provides automated, real-time monitoring that never tires, ensuring no patient is forgotten between rounds.
Sustained pressure reduces blood flow; redness and warmth appear (Stage I)
Skin breaks down; shallow open wound or blister develops (Stage II)
Full-thickness skin loss; fat may be visible (Stage III)
Bone, tendon, or muscle exposed; serious risk of sepsis and death (Stage IV)
Five seamless steps from body sensor to caregiver alert — all in real time.
Three MPU6050 IMU sensors mounted on the chest and both thighs continuously measure acceleration and gyroscope data, providing raw 6-DOF motion data 100 times per second.
The ESP32 microcontroller reads I²C data from all three sensors simultaneously, applying sensor fusion algorithms (complementary filter) to compute stable Euler angles — pitch, roll, and yaw — for each sensor.
Euler angle thresholds determine the current lying position: Supine (flat on back), Left-side, or Right-side. The classification runs in real time on the microcontroller.
A software timer resets each time the system detects a position change. If no movement is detected for 20 consecutive minutes, the alert logic activates. The timer and position state are streamed to Firebase in real time.
When the threshold is breached, an alert is pushed via Firebase, triggering a notification on the caregiver's monitoring dashboard. The caregiver can acknowledge and reset the timer after repositioning the patient.
Every component chosen for reliability, affordability, and clinical-grade performance.
Dual-core 240 MHz microcontroller with built-in Wi-Fi and Bluetooth. Handles all sensor reading, fusion computation, and Firebase communication simultaneously.
6-axis IMU combining a 3-axis gyroscope and 3-axis accelerometer on a single silicon die. Three units placed on chest and both thighs capture full-body orientation.
Google's real-time cloud database stores live sensor data, position states, and alert triggers. The web dashboard reads from Firebase for instant caregiver notification.
A complementary filter blends high-frequency gyroscope data with stable accelerometer readings, eliminating drift and noise to produce smooth, reliable Euler angles in real time.
Position state, inactivity duration, and alert status are updated in Firebase continuously. The dashboard reflects changes with zero perceptible delay, ensuring caregivers always have the latest data.
Lightweight, compact sensor modules attach non-invasively using medical-grade elastic bands. Designed for patient comfort during extended wear without interfering with clinical care.
A clinical-grade interface giving caregivers everything they need at a glance.
From hospital wards to home care — EquaLife brings smart monitoring to every patient.
Timely alerts trigger repositioning before tissue damage occurs, drastically reducing ulcer incidence.
Continuous monitoring means no patient is left unobserved — even during high-demand shift hours.
Nurses receive timely, actionable alerts rather than relying on memory or paper schedules.
Sub-second data updates ensure the dashboard always reflects the patient's actual current state.
Built on commodity hardware (ESP32, MPU6050) and free-tier Firebase — deployable for under $20 per patient.
Sensor fusion and cloud integration bring hospital-grade intelligence to any care environment.
Passionate students united by a mission to save lives through technology.
Ganja, Azerbaijan
Secondary school number 2 named after Ahmad Javad
Ganja, Azerbaijan
Secondary school number 39 named after Mir Jalal Pashayev
EquaLife is just the beginning. Here's where we're headed.
Native iOS and Android app for caregivers — receive alerts, view patient status, and acknowledge position changes from anywhere.
Machine learning models to predict high-risk periods, personalize alert thresholds, and identify patterns that precede ulcer development.
Multi-patient, multi-ward cloud dashboard with role-based access for nurses, doctors, and hospital administrators.
Direct integration with Electronic Health Records (EHR) and nurse call systems for seamless clinical workflow adoption.
Add SpO₂, skin temperature, and respiration rate sensors for a comprehensive wearable patient monitoring solution.