Rockchip RK3588 Octa-Core AI SoC
PNH CareSphere 适老化AI健康陪伴机器人
Overview
A compact dual-mode AI companion robot for seniors featuring ground rolling, retractable ducted fan flight, local offline medication reminders, and cloud-based visual recognition.
Desmond KhooSystem architecture
POWER
MCU
SENSOR
AUDIO
MOTOR
ACTUATOR
RF
MISC
- EDGE_AI_SOC → VISION_CAMERA_MODULEMIPIHigh-speed camera video stream connection for food and report visual recognition.
- EDGE_AI_SOC → GROUND_MCUUARTCommand and telemetry bridge between Linux AI processor and ground motion co-MCU.
- EDGE_AI_SOC → FLIGHT_MCUUARTHigh-level flight command passing to flight control MCU.
- GROUND_MCU → MOTOR_DRIVE_WHEELPWMPWM motor control signals and encoder feedback for omnidirectional ground rolling.
- FLIGHT_MCU → DUCTED_FAN_SERVOPWMESC throttle signal and retraction servo control for ducted fan flight mode.
- EDGE_AI_SOC → AUDIO_CODEC_ARRAYI2SDigital audio data stream and control interface for voice interaction.
- EDGE_AI_SOC → WIRELESS_RF_WIFI_BTUSBHigh-speed Wi-Fi 6 and Bluetooth connectivity interface.
- POWER_MANAGEMENT → CHARGING_DOCK_INTERFACEPowerDesktop charging dock power input path.
Bill of materials
| Part number | Type | Component | Manufacturer | Package | Qty | Datasheet | Match |
|---|---|---|---|---|---|---|---|
| BQ25713RSNR | POWER | TI BQ25713 + Rockchip RK8609 PMIC Manages 4S Li-Ion battery charging from dock, battery path management, and generates system rails (5V, 3.3V, 1.8V). | Texas Instruments | 32-WFQFN Exposed Pad | 1 | Matched | |
| RK3588 | MCU | Rockchip RK3588 Octa-Core AI SoC Runs Linux, computer vision pipelines (YOLOv8 food/report OCR), and local/cloud voice NLP. | Rockchip | FCBGA1088L | 1 | Matched | |
2 alternatives consideredAI verified | |||||||
| STM32F405RGT6. | MCU | STMicroelectronics STM32F405RG Handles real-time ducted fan stabilization, attitude estimation, and ESC control. | STMicroelectronics | — | 1 | Matched | |
6 alternatives consideredAI verified | |||||||
| STM32H743VIT6 | MCU | STMicroelectronics STM32H743VIT6 Controls omnidirectional wheel kinematics, RTC medication reminders, and low-power standby modes. | STMicroelectronics | 100-LQFP | 1 | Matched | |
1 alternatives consideredAI verified | |||||||
| IMX415 | SENSOR | Sony IMX415 4K CMOS Sensor Captures high-resolution images of food items and medical reports for visual recognition. | Sony | — | 1 | Pending | |
3 alternatives consideredAI verified | |||||||
| SPH0645LM4H-B | AUDIO | TI TLV320AIC3104 + Knowles SPH0645LM4H Mics Provides voice interaction input/output, wake-word processing, and audio feedback. | Knowles | Tape & Reel (TR); Cut Tape (CT); Digi-Reel® | 1 | Matched | |
2 alternatives consideredAI verified | |||||||
| TB6612FNG,C,8,EL | MOTOR | Toshiba TB6612FNG + DC Gear Motors with Encoders Drives the omnidirectional indoor rolling base wheels. | Toshiba Semiconductor and Storage | SSOP24 | 1 | Matched | |
1 alternatives consideredAI verified | |||||||
| TMC2209-LA | ACTUATOR | BLHeli_32 ESC + Brushless Ducted Fan + TMC2209 Retraction Powers the retractable ducted fan flight mode and handles mechanical enclosure deployment. | Analog Devices / Maxim Integrated | QFN EP | 1 | Matched | |
3 alternatives consideredAI verified | |||||||
| AX210.NGWG | RF | Intel AX210 / Broadcom Wi-Fi 6 + Bluetooth 5.3 Module Provides high-bandwidth cloud connectivity for AI reporting and local Bluetooth BLE pairing. | Intel | - | 1 | Matched | |
5 alternatives consideredAI verified | |||||||
| BQ25713RSNR | MISC | Spring-loaded Pogo Pin Dock Connector Connects robot to the desktop charging dock for automatic docking and power replenishment. | Texas Instruments | 32-WFQFN Exposed Pad | 1 | Matched | |
Build guide
12-16 小时Advanced
1
采购与准备
- 清点并核对主控及电源模组的物料，包含 Rockchip RK3588 AI SoC、TI BQ25713RSNR 充电管理芯片及 Rockchip RK8609 PMIC。
- 准备运动与飞行控制单元零件，包含 STM32F405RGT6 飞行微控制器、STM32H743VIT6 地面运动微控制器、TMC2209-LA 驱动芯片及 TB6612FNG 电机驱动。
- 准备传感器、音频与无线通信模组，包含 Sony IMX415 4K 传感器、Knowles SPH0645LM4H-B 麦克风、Intel AX210 无线网卡及 Pogo Pin 弹簧针充电连接器。
2
硬件组装与接线
- 将 TI BQ25713 + RK8609 PMIC 电源管理模组焊接至主板，并连接 Spring-loaded Pogo Pin Dock Connector 充电接口（接入 VBUS、GND、DA_DET 信号）。
- 安装 Rockchip RK3588 主 SoC，并通过 MIPI 接口（MIPI_TX_D0/D1, MIPI_CLK, SDA, SCL）连接 Sony IMX415 4K 视觉传感器。
- 将 STM32H743VIT6 地面 MCU 与 Toshiba TB6612FNG 焊接，并通过 PWM 接口连接直流减速电机及编码器（PWM1/2, DIR1/2, ENCODER_A/B）。
- 将 STM32F405RG 飞行 MCU 接入 BLHeli_32 ESC 及 TMC2209 涵道风扇收纳模组，连接 ESC_PWM 与 SERVO_PWM 信号线。
- 通过 I2S 接口将 TI TLV320AIC3104 音频编解码器与 Knowles SPH0645LM4H 麦克风阵列连接至主控，并通过 USB 接口接入 Intel AX210 Wi-Fi 6 模块。
3
固件烧录与配置
- 通过 ST-Link 分别向 STM32H743VIT6 (地面 MCU) 烧录底层运动控制与 RTC 吃药提醒固件，向 STM32F405RG (飞行 MCU) 烧录姿态解算与涵道风扇稳定固件。
- 通过 eMMC/TF 卡向 Rockchip RK3588 刷入 Linux 操作系统及 AI 视觉/语音算法镜像，配置 YOLOv8 食品与药盒 OCR 识别模型运行环境。
- 配置 Intel AX210 无线模组的 Wi-Fi 6 及 Bluetooth 5.3 参数，测试本地 BLE 配网流程及云端 AI 视觉服务器的双向通信链路。
4
测试与调试
- 进行电源与充电测试：将机器人放置于 Spring-loaded Pogo Pin 充电底座上，用万用表检测 BQ25713 充电管理芯片的输入 VBUS 和 4S 电池充电电流，验证自动回充功能。
- 测试双模运动与机械转换：通过 UART 链路下发指令，测试底盘全向轮运动轨迹精度，并验证 TMC2209 驱动的涵道风扇收纳/展开机构及飞行姿态稳定度。
- 测试 AI 视觉识别与本地提醒：使用 IMX415 拍摄老年人服药药盒及医疗报告，验证 RK3588 运行 YOLOv8 的 OCR 识别准确率，并检查 RTC 本地离线吃药提醒蜂鸣及语音播报功能。
Document
PNH CareSphere 适老化AI健康陪伴机器人
一款专为老年人设计的紧凑型双模AI陪伴机器人，具备地面滚动、可收纳涵道风扇飞行模式、本地离线吃药提醒及云端AI视觉识别功能。
设计概览
| 项目 | 内容 |
|---|---|
| 产品类型 | AI健康陪伴机器人 |
| 核心功能 | 语音交互, 吃药提醒, 食物与医疗报告视觉识别, 室内地面滚动, 可收纳涵道风扇飞行模式 |
| 供电方式 | Li-Ion Battery (8-12 hours life, desktop charging dock) |
| 连接方式 | WiFi (Cloud AI and Reporting), Bluetooth / Local Offline (Basic medication reminders) |
| 尺寸约束 | 直径15-20厘米，重量低于1公斤 |
| 使用环境 | indoor |
| 制作难度 | Advanced |
| 预计时间 | 12-16 小时 |
系统架构
供电拓扑: 4S Li-Ion battery pack feeds BQ25713 charger and PMIC; RK8609 PMIC generates 5V for RK3588 SoC, 3.3V for MCUs and peripherals, and direct VBAT/VSYS rail powers motor drivers and ducted fan ESC.
模块清单
| 模块 ID | 类型 | 名称 | 功能 | 电压 |
|---|---|---|---|---|
| POWER_MANAGEMENT | POWER | TI BQ25713 + Rockchip RK8609 PMIC | Manages 4S Li-Ion battery charging from dock, battery path management, and generates system rails (5V, 3.3V, 1.8V). | 14.8V |
| EDGE_AI_SOC | MCU | Rockchip RK3588 Octa-Core AI SoC | Runs Linux, computer vision pipelines (YOLOv8 food/report OCR), and local/cloud voice NLP. | 5V |
| FLIGHT_MCU | MCU | STMicroelectronics STM32F405RG | Handles real-time ducted fan stabilization, attitude estimation, and ESC control. | 3.3V |
| GROUND_MCU | MCU | STMicroelectronics STM32H743VIT6 | Controls omnidirectional wheel kinematics, RTC medication reminders, and low-power standby modes. | 3.3V |
| VISION_CAMERA_MODULE | SENSOR | Sony IMX415 4K CMOS Sensor | Captures high-resolution images of food items and medical reports for visual recognition. | 3.3V |
| AUDIO_CODEC_ARRAY | AUDIO | TI TLV320AIC3104 + Knowles SPH0645LM4H Mics | Provides voice interaction input/output, wake-word processing, and audio feedback. | 3.3V |
| MOTOR_DRIVE_WHEEL | MOTOR | Toshiba TB6612FNG + DC Gear Motors with Encoders | Drives the omnidirectional indoor rolling base wheels. | 12V |
| DUCTED_FAN_SERVO | ACTUATOR | BLHeli_32 ESC + Brushless Ducted Fan + TMC2209 Retraction | Powers the retractable ducted fan flight mode and handles mechanical enclosure deployment. | 14.8V |
| WIRELESS_RF_WIFI_BT | RF | Intel AX210 / Broadcom Wi-Fi 6 + Bluetooth 5.3 Module | Provides high-bandwidth cloud connectivity for AI reporting and local Bluetooth BLE pairing. | 3.3V |
| CHARGING_DOCK_INTERFACE | MISC | Spring-loaded Pogo Pin Dock Connector | Connects robot to the desktop charging dock for automatic docking and power replenishment. | 16.8V |
方案对比
异构边缘AI主控与实时飞行MCU架构 ★
High-performance Rockchip RK3588 handling vision/voice AI, paired with STM32H7 for ground locomotion and STM32F4 for retractable ducted fan flight.
取舍: Optimized for maximum computational headroom for complex vision recognition and local voice parsing, at the cost of higher multi-chip board complexity.
单高性能应用处理器与RTOS协处理器架构
Unified high-end Linux application processor with integrated real-time microcontroller cores for streamlined BOM and architecture.
取舍: Simpler hardware layout and lower component count, but less modular debugging compared to the heterogeneous multi-MCU setup.
关键器件四步选型
power path and battery charger
- Need: Manage 4S Li-Ion battery charging from pogo pin dock, provide input protection, and dynamic power path management (DPPM).
- Class: Switch-mode 1-4 cell synchronous buck-boost battery charger IC with I2C control
- Shortlist: TI BQ25713, ADI LTC4162
- Pick: Select BQ25713 for robust 4S support, integrated NFET drivers, and mature ecosystem with RK3588 PMIC companion rails.
main application and vision processor
- Need: Execute Linux OS, heavy neural network inference for YOLOv8 food/OCR, and handle multi-channel peripheral IO.
- Class: Octa-Core ARM Cortex High-Performance AI SoC with integrated NPU
- Shortlist: Rockchip RK3588, Amlogic A311D2
- Pick: Select Rockchip RK3588 due to powerful 6 TOPS NPU, native 8K/4K video processing pipelines, and extensive Linux BSP support.
real-time flight stabilization controller
- Need: Process high-speed IMU feedback and execute low-latency attitude PID loops for ducted fan flight mode.
- Class: ARM Cortex-M4 32-bit RISC MCU with DSP and FPU, high-timer count
- Shortlist: STMicroelectronics STM32F405RG, NXP Kinetis K66
- Pick: Select STM32F405RG for its proven reliability in drone flight controllers (Betaflight standard), rich hardware timers, and compact footprint.
locomotion and housekeeping controller
- Need: Manage wheel encoder interrupts, real-time clock alarms for medication, and ultra-low-power sleep/wake states.
- Class: ARM Cortex-M7 High-Performance Real-Time MCU with extensive low-power modes
- Shortlist: STMicroelectronics STM32H743VIT6, NXP i.MX RT1060
- Pick: Select STM32H743VIT6 for dual-core capability (if needed), abundant peripherals, and robust hardware interfaces for wheel motor control.
brushless motor electronic speed controller
- Need: Drive high-RPM brushless ducted fan safely with rapid throttle response and telemetry feedback.
- Class: BLDC ESC with BLHeli_32 firmware support, high current rating (40A+)
- Shortlist: BLHeli_32 Custom ESC Design, Manufacturer Modular ESC
- Pick: Select BLHeli_32 compatible discrete design utilizing high-current MOSFETs and dedicated gate drivers for tight integration.
风险清单
| ID | 领域 | 等级 | 说明 | 缓解 |
|---|---|---|---|---|
| r1 | power | high | Simultaneous startup of the RK3588 AI SoC and the high-draw brushless ducted fan during flight mode transition can cause severe 4S battery voltage sag, triggering system brownouts. | Implement strict power-sequencing firmware policies, ensure high-capacity bulk decoupling capacitors on the 5V/sys rails, and prohibit flight mode initiation when battery state-of-charge (SoC) drops below 30%. |
| r2 | thermal | high | Enclosing the RK3588 SoC inside a compact robot chassis without active airflow during stationary ground operation will lead to thermal throttling and degraded AI inference performance. | Design an internal thermal conductive path (graphite sheets + copper blocks) transferring heat to the outer metallic structural chassis, and utilize low-duty-cycle NPU scheduling. |
| r3 | emi | med | High-frequency PWM switching noise from the BLHeli_32 ESC and TMC2209 stepper/servo drivers can couple into the sensitive Knowles digital/analog microphone array and Sony IMX415 camera MIPI traces. | Enforce strict PCB layout isolation, route MIPI CSI pairs with complete ground shielding, use common-mode chokes on motor power lines, and use shielded FPC cables for camera modules. |
| r4 | mech | med | Mechanical failure or jamming of the TMC2209-driven enclosure retraction mechanism for the ducted fan could leave the robot unbalanced or aerodynamically unstable during rolling vs. flight transitions. | Add absolute position optical limit switches and current-sensing stall protection in the TMC2209 driver firmware to safely retry or abort deployment maneuvers. |
关键器件
9/10 个模块已匹配到真实器件。完整 BOM 表见「BOM」标签页。
电源管理模组 (TI BQ25713 + RK8609) (BQ25713RSNR)
The candidate BQ25713RSNR exactly matches the primary MPN for the Texas Instruments BQ25713 battery charger IC.
边缘AI主控芯片 (瑞芯微 RK3588) (RK3588)
Candidate 1 (RK3588S) matches the primary MPN and manufacturer Rockchip, with ordering suffixes acceptable per instructi
飞行控制MCU (意法半导体 STM32F405RG) (STM32F405RGT6.)
Candidate 7 (listed as STM32F405RGT6.) exactly matches the primary MPN STM32F405RG with the standard T6 LQFP-64 packagin
地面运动与提醒MCU (意法半导体 STM32H743VIT6) (STM32H743VIT6)
The candidate matches the primary MPN STM32H743VIT6 and the preferred manufacturer STMicroelectronics.
4K视觉传感器 (索尼 IMX415) (IMX415)
Rejected weak/wrong-class catalog hits; using web recommendation: IMX415
制作概要
- 制作难度: Advanced
- 预计时间: 12-16 小时
- 所需工具: 防静电手环, 电子万用表, 恒温热风枪, 精密烙铁, 显微镜, ST-Link V2 烧录器
完整制作步骤见「Build Guide」标签页。
Generated by YuanQi AI Design System · Query: 基于用户上传的概念图与详细项目说明（PNH CareSphere — 专为老年人设计的AI健康与陪伴机器人，具备语音交互、吃药提醒、食物与医疗报告视觉识别、室内滚动及可收纳涵道风扇飞行模式等功能），请为该项目创建硬件设计方案与架构规划。