Introduction to EBYTE's E73-Based Safety Solution
EBYTE presents an advanced fall detection and emergency alert system built on the E73-2G4M04S1B Bluetooth Low Energy module, offering reliable protection for elderly individuals living independently.
Key Features of E73-2G4M04S1B Implementation:
✔ nRF52832 BLE 5.0 Chipset - 512KB Flash, 64KB RAM for advanced algorithm processing ✔ 4dBm Transmission Power - Stable connectivity within 50m indoor range ✔ Multi-sensor Integration - Supports accelerometer, gyroscope and heart rate sensors ✔ Compact Design - 17.5×28.7mm module size enables wearable form factor ✔ Low Power Consumption - 4dBm output with optimized power management ✔ IP67 Protection - Water and dust resistant for daily wea
System Architecture & Technical Implementation
Core Components:
Main Controller: E73-2G4M04S1B (nRF52832)
Motion Sensors: 6-axis IMU (accelerometer + gyroscope)
Wireless Protocol: Bluetooth 5.0 (BLE)
Emergency Button: Integrated tactile switch with debounce circuit
Power System: 300mAh Li-Po battery with charging circuit
Technical Specifications:
Parameter | Specification |
Chipset | nRF52832 (E73-2G4M04S1B) |
Wireless Standard | BLE 5.0 |
Transmission Power | 4dBm (configurable) |
Receiver Sensitivity | -96dBm @1Mbps |
Operating Voltage | 2.0-3.6V |
Current Consumption | 5.3mA (TX), 4.4mA (RX) |
Sleep Current | <1μA |
Interface | UART/I2C/SPI/GPIO |
Dimensions | 17.5×28.7×2.4mm |
Fall Detection Algorithm
Motion Pattern Recognition: Analyzes acceleration and angular velocity data
Impact Detection: Identifies sudden changes in movement patterns
Post-Fall Monitoring: Detects prolonged inactivity after impact
False Positive Filter: Distinguishes between falls and normal activities
System Functionality
Automatic Fall Detection
Real-time monitoring of movement patterns
Impact detection with 95% accuracy
Auto-alert transmission via BLE to gateway/hub
Manual Emergency Button
One-touch activation for immediate help
Two-stage confirmation (short/long press)
LED visual feedback for operation status
Wireless Connectivity
BLE 5.0 connection to home gateway (E810-TTL-01)
Mesh networking capability (with E73-2G4M08S1E)
Cloud integration through EBYTE IoT platform
Comparative Analysis
Feature | EBYTE E73 Solution | Market Average |
Detection Accuracy | 95% | 85% |
Response Time | <5s | 10-15s |
Battery Life | 7 days | 3-5 days |
Wireless Range | 50m (indoor) | 30m |
Water Resistance | IP67 | IP54 |
Certification | CE/FCC/BLE 5.0 | BLE 4.2 |
Implementation Guide
Hardware Integration:
Sensor Interface: Connect IMU via I2C to E73 module
Button Circuit: GPIO interrupt configuration
Power Management: Low-power design optimization
Software Configuration:
// Example BLE service initialization ble_fds_init_t fds_init = { .evt_handler = on_fds_evt, .error_handler = on_fds_error, .feature = BLE_FDS_FEATURE_FALL_DETECTION }; err_code = ble_fds_init(&fds_init, &m_fds);
Cloud Integration:
EBYTE IoT platform API integration
Alert notification setup (SMS/Email/App)
Certification & Compliance
RF Certification: FCC/CE/RoHS
Wireless Protocol: Bluetooth 5.0 Qualified
Medical Compliance: IEC 60601-1 (Pending)
Ordering Information & Support
Available Products:
EWB101-FD: Fall detection bracelet (E73-2G4M04S1B based)
EWB102-SOS: Emergency pendant (E73-2G4M04S1A based)
EWH200-GW: BLE-to-WiFi gateway (E810-TTL-01 based)