docs: add USER_GUIDE.md — 사용자용 상세 가이드
전체 사용 흐름 (연결→정렬→측정→배뇨기록) 단계별 안내 Placement 3-step 절차, Auto/Spot 측정, 설정, 트러블슈팅 포함 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
+260
@@ -0,0 +1,260 @@
|
||||
# VesiScan-Basic User Guide
|
||||
|
||||
## App Version: VBTAND0101
|
||||
|
||||
---
|
||||
|
||||
## 1. Getting Started
|
||||
|
||||
### First Launch
|
||||
1. Install the app and open it
|
||||
2. Complete the onboarding screens
|
||||
3. Register your information (name, age, height, weight)
|
||||
4. Set a 4-digit PIN
|
||||
5. You will arrive at the **Home** screen
|
||||
|
||||
### Home Screen
|
||||
- Tap **Start** to begin
|
||||
- The app version is displayed below "Smart Bladder Monitoring"
|
||||
- To enable Developer Mode: tap the Bladdy character **3 times quickly** (within 1.5 seconds)
|
||||
|
||||
---
|
||||
|
||||
## 2. Connecting the Device
|
||||
|
||||
1. Tap **Start** on the Home screen
|
||||
2. The app will scan for nearby VesiScan devices
|
||||
3. When your device appears in the list, tap it to connect
|
||||
4. **Complete the Bluetooth pairing** when the system dialog appears
|
||||
- Do NOT press Cancel — the app will not proceed without pairing
|
||||
5. Once paired, you will move to the Personalization screen
|
||||
|
||||
### Personalization
|
||||
- Set your **posture** (standing/sitting/lying)
|
||||
- Set the **sensor position**
|
||||
- Set the **Max Volume** (default: 500 mL)
|
||||
- Tap **Next** to proceed to Sensor Alignment
|
||||
|
||||
---
|
||||
|
||||
## 3. Sensor Alignment (Placement)
|
||||
|
||||
This step ensures the sensor is positioned correctly over your bladder for accurate measurement.
|
||||
|
||||
### Step 1: Vertical Alignment
|
||||
|
||||
1. **Place the VesiScan-Basic device just above your pubic bone**
|
||||
2. Apply ultrasound gel between the sensor and your skin
|
||||
3. Tap the **Start Alignment** button
|
||||
4. The app will begin scanning and provide direction:
|
||||
- **"Raise the sensor up"** — slide the device upward toward your navel
|
||||
- **"Lower the sensor down"** — slide the device downward toward your pubic bone
|
||||
- **"Raise the sensor slightly"** / **"Lower the sensor slightly"** — make small adjustments
|
||||
5. Move the sensor **slowly, 1-2mm at a time**
|
||||
6. When the vertical position is correct, the app will show **Step 2/3**
|
||||
|
||||
> The hint text will show animated dots (e.g., "Raise the sensor up.", "Raise the sensor up..", "Raise the sensor up...") to indicate the system is actively scanning.
|
||||
|
||||
### Step 2: Lateral Alignment
|
||||
|
||||
1. The app will first show **"Checking left/right balance..."** for a few seconds
|
||||
2. Then it will guide you:
|
||||
- **"Move left"** — slide the device to the left
|
||||
- **"Move right"** — slide the device to the right
|
||||
3. Adjust until both lateral sensors (CH4 and CH5) detect the bladder equally
|
||||
4. When balanced, the app will show **Step 3/3**
|
||||
|
||||
### Step 3: Final Check (Green Zone)
|
||||
|
||||
1. The app checks overall alignment quality
|
||||
2. If everything is optimal, the hint will show **"Optimal position!"**
|
||||
3. The screen will hold this state for **7 seconds** to confirm stability
|
||||
4. Tap **Alignment Complete** to proceed to the measurement screen
|
||||
|
||||
### If Alignment is Lost
|
||||
- If the sensor shifts significantly after reaching Optimal:
|
||||
- The app will show **"Position lost. Place sensor above pubic bone, then press Start"**
|
||||
- The scanning will stop automatically
|
||||
- Re-place the sensor and tap **Start Alignment** again
|
||||
|
||||
### If the Sensor is Detached
|
||||
- If the sensor loses contact with skin:
|
||||
- The app will show **"Sensor detached. Place above pubic bone, then press Start"**
|
||||
- Re-attach the sensor with gel and tap **Start Alignment**
|
||||
|
||||
### Tips
|
||||
- Use **plenty of ultrasound gel** — dry contact causes poor readings
|
||||
- Keep the sensor **flat against the skin** — tilting reduces accuracy
|
||||
- Move **slowly** — fast movements cause unstable readings
|
||||
- You can tap **Skip** to go directly to measurement without alignment
|
||||
|
||||
---
|
||||
|
||||
## 4. Measurement Screen
|
||||
|
||||
After alignment, you will see the main measurement screen with a donut chart.
|
||||
|
||||
### Screen Layout
|
||||
|
||||
```
|
||||
[Placement] [Battery] [Catheters] [Settings]
|
||||
|
||||
Enjoy your day!
|
||||
|
||||
┌─────────────────┐
|
||||
│ Donut Chart │
|
||||
│ │
|
||||
│ [Bladdy] │
|
||||
│ 325 mL │
|
||||
└─────────────────┘
|
||||
|
||||
Current Measurement | 65%
|
||||
280 mL | 325/500 mL
|
||||
|
||||
[Void/Catheterize] [Auto] [Spot]
|
||||
```
|
||||
|
||||
### Understanding the Display
|
||||
|
||||
| Element | Description |
|
||||
|---------|-------------|
|
||||
| **Donut Chart** | Fills based on max measured volume / max volume setting |
|
||||
| **Center Value** | Maximum measured volume this session (updates every 5 seconds) |
|
||||
| **Current Measurement** | Latest trimmed mean value (Auto) or last Spot result |
|
||||
| **Fill Card** | Top: fill percentage, Bottom: max measured / bladder max volume |
|
||||
| **Battery Icon** | Device battery level with visual indicator |
|
||||
| **Catheter Count** | Remaining catheters (tap to add more) |
|
||||
|
||||
---
|
||||
|
||||
## 5. Auto Measurement
|
||||
|
||||
1. Tap the **Auto** button (orange)
|
||||
2. The device will measure continuously every ~1.5 seconds
|
||||
3. For the first 5 measurements, the display will show **"—"** (collecting data)
|
||||
4. After 5+ measurements, the **trimmed mean** value will be displayed
|
||||
5. The donut chart will update every 5 seconds
|
||||
6. Tap **Stop** (red) to end Auto measurement
|
||||
|
||||
### Auto Measurement Failure
|
||||
- If measurements fail **5 times in a row** (sensor shifted or lost contact):
|
||||
- A dialog will appear: **"Sensor Position Issue"**
|
||||
- Tap **Go to Alignment** to re-align the sensor
|
||||
- Or tap **Dismiss** to stay on the measurement screen
|
||||
|
||||
---
|
||||
|
||||
## 6. Spot Measurement
|
||||
|
||||
1. Tap the **Spot** button
|
||||
2. The device will take **5 consecutive measurements** (~4 seconds total)
|
||||
3. A **spinner** will show during measurement
|
||||
4. The result (trimmed mean of 5 readings) will be displayed immediately
|
||||
5. The donut chart and Current Measurement card will update
|
||||
|
||||
> During Spot measurement, the Auto and Void buttons are disabled.
|
||||
|
||||
---
|
||||
|
||||
## 7. Void / Catheterize
|
||||
|
||||
1. Tap the **Void / Catheterize** button
|
||||
2. The current measurement is recorded to the voiding diary
|
||||
3. The catheter count decreases by 1
|
||||
4. The bladder level resets to 0
|
||||
5. A toast message **"Voiding recorded"** will appear
|
||||
|
||||
### Managing Catheters
|
||||
- The catheter count is shown at the top of the screen (hospital icon + number)
|
||||
- **Tap the catheter count** to add more catheters
|
||||
- Enter the number and tap **Add**
|
||||
- Default starting count: **15 catheters**
|
||||
|
||||
---
|
||||
|
||||
## 8. Settings
|
||||
|
||||
Tap the **gear icon** at the top right to open settings.
|
||||
|
||||
### General Settings (always visible)
|
||||
| Setting | Description | Default |
|
||||
|---------|-------------|---------|
|
||||
| Max Volume | Maximum bladder volume for fill calculation | 500 mL |
|
||||
| Catheter Threshold | Alert level for catheterization | Level 7 |
|
||||
|
||||
### Developer Settings (Developer Mode only)
|
||||
| Setting | Description |
|
||||
|---------|-------------|
|
||||
| Threshold | Otsu (auto) or manual echo threshold |
|
||||
| DPS | Distance per sample (mm) |
|
||||
| Detection | Method A / B / C |
|
||||
| BV | Frustum / V41 (volume calculation method) |
|
||||
| SG Filter | Savitzky-Golay noise filter on/off |
|
||||
| Post Max | Maximum sample index for wall detection (filters floor reflections) |
|
||||
|
||||
### Saving Settings
|
||||
- Adjust values using sliders and toggles
|
||||
- Tap **Save** to apply and close
|
||||
- Tap **Cancel** to close without changes (note: slider changes apply in real-time)
|
||||
|
||||
---
|
||||
|
||||
## 9. Navigation
|
||||
|
||||
| Action | Result |
|
||||
|--------|--------|
|
||||
| **Placement button** (top left) | Go to Sensor Alignment |
|
||||
| **Settings button** (top right) | Open/close settings panel |
|
||||
| **Back button** (Android) | Go to previous screen |
|
||||
| **Back button on Home** | "Exit App?" confirmation dialog |
|
||||
|
||||
---
|
||||
|
||||
## 10. Troubleshooting
|
||||
|
||||
| Problem | Solution |
|
||||
|---------|----------|
|
||||
| "Place sensor above pubic bone" won't go away | Make sure the sensor is attached with gel, then press **Start Alignment** |
|
||||
| Alignment keeps showing "Raise/Lower" | Move the sensor **very slowly**, 1-2mm at a time |
|
||||
| Auto measurement shows "—" | Wait for at least 5 measurements to accumulate |
|
||||
| Donut chart value doesn't change | Max volume updates every 5 seconds |
|
||||
| Spot measurement takes too long | Each Spot takes ~4 seconds (5 readings) |
|
||||
| "Sensor Position Issue" dialog appears | The sensor may have shifted — go to Alignment |
|
||||
| Bluetooth connection lost | The app will attempt auto-reconnect (up to 5 times) |
|
||||
| App freezes on measurement screen | Check BLE connection, try disconnecting and reconnecting |
|
||||
| Pairing dialog appears but app won't proceed | You must tap **Pair** — canceling will block the connection |
|
||||
|
||||
---
|
||||
|
||||
## 11. LED Indicators (Device)
|
||||
|
||||
| LED State | Meaning |
|
||||
|-----------|---------|
|
||||
| Green blink (0.5s) | Bluetooth scanning |
|
||||
| Green on 1s / off 3s | Device idle (not attached) |
|
||||
| Orange blink (1s) | Sensor Alignment in progress |
|
||||
| Green solid | Alignment complete (Optimal position) |
|
||||
| Orange fast blink (3Hz) | Error detected |
|
||||
| Orange solid | Charging |
|
||||
| Blue solid | Charging complete |
|
||||
|
||||
---
|
||||
|
||||
## 12. Important Notes
|
||||
|
||||
- **Always use ultrasound gel** between the sensor and skin
|
||||
- **Keep the sensor still** during measurement — movement reduces accuracy
|
||||
- **Do not use the device while charging**
|
||||
- The app keeps the screen on during use to prevent BLE disconnection
|
||||
- Measurement logs are automatically saved to your device:
|
||||
- BLE logs: `Downloads/VesiScan_BLE_*.log`
|
||||
- ADC data: `Downloads/VesiScan_ADC/*.csv`
|
||||
|
||||
---
|
||||
|
||||
## Contact
|
||||
|
||||
For technical support, contact:
|
||||
- App Development: dwjang
|
||||
- Algorithm: Charles KWON / eunji.won
|
||||
- Medithings Co., Ltd. — https://medithings.net
|
||||
Reference in New Issue
Block a user