Product Type: Wearable AI pendant
Primary Function: Records audio, generates transcripts, and organizes information about daily interactions
User Interaction:
Input: Activation button
Output: RGB LED ring, Bluetooth link to phone
Key Features:
Audio Recording: Activated by button press
Transcription: Converts audio to text
Sentiment Analysis: Embedded AI evaluates sentiment
Information Management: Filters essential information and action items
Technical Specifications
Form Factor: Wearable pendant
Display: RGB LED ring around the edge
Sensors:
2 Microphones
1 Button
Connectivity:
Bluetooth for phone linkage
Wi-Fi
USB-C for charging
Wireless Protocol: Wi-Fi, Bluetooth
Battery Type: LiPo 2000 mAh
Battery Life: 6 hours of continuous use
Charging Method: USB-C
Operating Voltage: 3.3V
Operating Conditions:
Temperature Range: -10°C to 70°C
Humidity: 10 to 90%
Software: Python for AI and processing
Compliance: RoHS, FCC, CE
Reliability: 20,000 hrs
Life Cycle Expectancy: 10 years
AI Capabilities
Speech to Text Recognition: Converts audio input to written text
Embedded AI Sentiment Analysis: Evaluates the mood or sentiment expressed in the text
Essential Information Filtering: Identifies and segregates crucial data and actionable items
Power Consumption and Efficiency
Power consumption must align with battery capacity to ensure 6 hours of continuous operational use.
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Audio Recording and Processing:
- Input: The pendant is activated by pressing a button ($SW1$).
- Output: It uses 2 microphones ($MK1$ and $MK2$) to capture audio, which is then transcribed to text and analyzed for sentiment.
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User Interaction:
- Visual Feedback: An RGB LED ring ($LED1$) provides visual feedback to the user.
- Connectivity: The pendant connects to a smartphone via Bluetooth, and also supports Wi-Fi for data transfer.
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Power Management:
- Battery: It uses a 2000 mAh LiPo battery, providing 6 hours of continuous use.
- Charging: USB-C port ($J1$) is used for charging.
- Power Regulation: Components like the battery connector ($BATT ; CONN$), DC-DC switching regulator ($U2$), and battery management IC ($U3$) manage power distribution and charging.
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Embedded AI Capabilities:
- Speech to Text: Transcription of audio to text is handled by software running on the U1.
- Sentiment Analysis: Embedded AI evaluates the sentiment of the transcribed text.
- Information Management: The system filters essential information and action items based on the transcribed text and sentiment analysis.
Technical Specifications- Operating Voltage: 3.3V
- Operating Conditions: Temperature range from -10°C to 70°C, and humidity from 10 to 90%.
- Compliance: The design adheres to RoHS, FCC, and CE standards.
- Life Cycle: The pendant is designed for a 10-year life cycle with a 20,000-hour reliability expectation.
Core Components- Microcontroller:
- ESP32-S3-WROOM-1-N8R8: This controls the AI processes, Bluetooth, Wi-Fi, and various sensors.
- Battery Management:
- BQ24075RGTT: Manages the LiPo battery charging and power distribution.
- Audio Processing:
- ICS-43434: Used for the microphones to capture audio.
- LED Indicator:
- WS2812B-B: Controls the RGB LED ring for visual feedback.
Power Management Components- Regulators:
- LM2623AMM/NOPB: Used for voltage regulation.
- Capacitors and Resistors:
- Various capacitors ($C7$, $C13$, etc.) and resistors ($R8$, $R11$, etc.) for filtering, decoupling, and other functions.
Connectivity and Interface