iOS App “Face Monitoring” Functionality Guidelines

This guide outlines the core functions, operational logic, and key explanations of the “Face Monitoring” iOS application. The application is a purely real-time face detection tool, operating without a network connection and without generating any local storage records. It only provides real-time detection services, supports iOS 16 and above, and requires the device’s front-facing TrueDepth camera to achieve its core functions.

I. Core Application Positioning

This iOS utility application focuses on real-time face detection. Relying on facial tracking technology, it achieves facial feature recognition, sleep status monitoring, and other functions. It is suitable for legitimate scenarios such as personal facial status monitoring and focus reminders. Operating without a network connection and storing no data, it fundamentally protects user privacy and security.

Basic Requirements: Only requires device camera permission (no photo storage permission required); supports iPhone 7 and above (iPhone 15 Pro and above offer more accurate recognition); does not support simulators; requires iOS 16 and above.

II. Core Functional Framework

(I) Facial Feature Recognition Function

1. Core Function: Real-time face capture, accurate identification of facial feature points, annotation of key facial areas, and presentation of recognition status, providing basic support for subsequent drowsiness monitoring.

2. Operation Logic: After launching the application and authorizing the camera, it automatically enters facial recognition mode. If recognition is successful, it can enter monitoring mode; if recognition fails, relevant operation instructions will be displayed, supporting re-recognition.

3. Important Notes: Sufficient lighting and unobstructed face are required during recognition (masks, hats, etc. should avoid obstructing key facial areas); denying camera permissions will prevent this function from starting; recognition data is only effective in real time and is automatically cleared after closing the application.

(II) Drowsiness Recognition and Alert Function

1. Core Function: Real-time monitoring of the recognized facial status, accurate detection of drowsiness behaviors (such as closed eyes, head drooping, etc.), and dual reminders via pop-up windows and sound alerts to help users stay awake.

2. Operation Logic: Sleep detection is enabled by default upon entering monitoring mode. The alert sound can be manually controlled (enabling it plays an alert sound and pop-up window). Users can exit monitoring at any time during the monitoring process and return to facial recognition mode. The alert will continue until the user regains consciousness and will automatically disengage.

3. Important Notes: This function can only be activated after facial recognition is successful. Monitoring will pause if no face is recognized.

(III) Face Not Recognized Alert Function

1. Core Function: Provides a clear alert and a re-recognition entry point when facial recognition fails or the face is lost during monitoring (out of frame, obscured), ensuring functional continuity.

2. Operation Logic: An alert interface is automatically triggered when a face is not recognized. Users can adjust the camera angle and face posture, then click the re-recognition button to restart facial recognition. Upon successful recognition, the system returns to the corresponding mode. Alternatively, users can directly access the settings page to adjust parameters and try again.

3. Important Notes: During periods of non-recognition, the application only retains a real-time camera preview and pauses the sleep detection function. After multiple recognition failures, users can check the camera status or adjust the recognition parameters.

(IV) Core Parameter Settings

1. Core Function: Customized settings are designed around the core functions of the application, adapting to different usage scenarios and enhancing the user experience. There are no unnecessary settings.

2. Core Settings:

• Sleep Reminder Settings: Enable/disable sleep reminder sounds and pop-up alerts, and adjust the sound volume;

• Facial Recognition Settings: Adjust facial recognition sensitivity (low/medium/high). Higher sensitivity results in more accurate recognition and reduces the number of missed recognitions;

• Camera Settings: Adjust camera resolution and frame rate to balance image clarity and smooth operation;

• Privacy Settings: Enable anti-screenshot protection to prevent malicious capture of monitoring footage;

• Basic Information: View application version, privacy policy, usage instructions, etc.

3. Operation Logic: Access the settings page from various core interfaces of the application. After adjusting parameters, click save to take effect. Default settings can be restored. All settings are only valid in the current usage session and will revert to default after closing the application.

4. Important Notes: Adjusting camera parameters may affect application smoothness. It is recommended to select appropriate parameters based on device performance. Re-recognition is required after adjusting the recognition sensitivity for the changes to take effect.

III. Function Usage Logic

1. Launch the application → Authorize the camera → Enter facial feature recognition → Recognition successful → Enter sleep monitoring mode;

2. During monitoring, if a face is lost/recognition fails → Trigger a non-recognition prompt → Re-recognize → Restore the corresponding mode;

3. You can access the settings page from any core interface, adjust parameters, and save the changes;

4. Monitoring mode can be exited at any time to return to facial recognition mode; no network is used throughout the process, no data is stored, and all real-time data is cleared after closing the application.

IV. Common Problems and Solutions

• Problem 1: The camera image cannot be displayed after launching the application?

Solution: Check if the device has granted camera permissions. If not, manually enable permissions in the device settings; if already authorized, restart the application/device, check that the camera is unobstructed and functioning correctly, and confirm that the device supports facial tracking.

• Problem 2: Unable to recognize faces?

Solutions:

• Problem 3: Suddenly receives a message saying “Face not recognized” during use?

Solution: Adjust face pose and camera angle, ensure no obstructions and sufficient lighting (avoid strong light and backlight); adjust facial recognition sensitivity and check if the device supports facial recognition.

• Problem 4: Application lags?

Solution: Lower camera resolution and frame rate; close unnecessary background applications to free up memory; restart the application and ensure it is the latest version.

V. Usage Tips

1. The application is for legal use only. It is prohibited to use it for illegal monitoring or to infringe on the privacy of others. Users are solely responsible for any consequences arising from such use.

2. It is recommended to regularly update the application to the latest version to ensure stable functionality.

3. The device system version must be iOS 16 or above. Please back up your device data before upgrading the system.

4. Prolonged use of the monitoring function will consume a lot of power. It is recommended to use it while charging or to reasonably control the usage time.