Personal project / Electronics / Sensing
Multi-Sensor Biomedical Data Acquisition Platform
A synchronised embedded acquisition platform spanning ECG, acoustic and inertial sensing, local display and wireless/storage paths.
- Work type
- Personal project
- Status
- Prototype development
- Period
- Undisclosed
- Scope
- Electronics / Sensing
01
Context
The engineering challenge was cross-domain: analogue signals, digital sensors, real-time acquisition, synchronisation, storage and display behaviour all influenced the observed data.
02
Engineering problem
Integrate sensor channels with materially different rates and signal characteristics while preserving timing, data quality and a usable route to display, storage and transfer.
03
My responsibility
- Sensor and embedded integration
- Acquisition timing and synchronisation
- Signal-quality investigation
- Display and data-path debugging
04
System architecture
01ECG · PCG · IMUMulti-rate sensors
02AcquisitionSample · timestamp
03Embedded processingBuffer · synchronise
04Storage / radioSD · BLE · Wi-Fi
05Display / analysisInspect · validate
05
Engineering approach
- Defined independent acquisition schedules around channel needs
- Applied common timestamps and bounded buffering
- Separated sensing faults from display and transport faults
- Used measured data to trace signal-quality issues through the complete path
06
Implementation
- ECG at approximately 500 Hz
- PCG / microphone at approximately 2 kHz
- IMU at approximately 125 Hz
- Embedded processing, SD storage, display and BLE/Wi-Fi paths
07
Validation
- Sampling-rate and timestamp checks
- Cross-channel alignment review
- Recorded-data inspection
- Display-path and interface-level debugging
08
Outcome
- A working multi-rate acquisition architecture
- A repeatable method for isolating signal, timing and presentation issues
- Integrated local and connected data paths for engineering evaluation
09
Technologies / methods
10
Related capabilities
Presented as anonymised engineering development work. This is not a medical product claim and no clinical outcome is implied.