Smart Follow Stroller: Turning Technology into Parents’ “Third Hand”

For parents, a simple trip outside often feels like a small relocation—stroller, bottles, toys, spare clothes, shopping bags. With arms constantly occupied, it’s common to see one hand holding the baby and the other struggling to push the stroller. On top of that, parents must always worry whether the unattended stroller is safe from being moved or misplaced.

With the rise of autonomous follow technology, strollers are evolving into smart companions that quietly move along behind parents. No more pushing an empty stroller through crowded places—parents can now focus on their children and enjoy the moment. This leap is powered by our self-developed UWB + IMU fusion positioning system, combined with LiDAR-based obstacle avoidance and intelligent path-planning algorithms.

Scenario 1: Shopping Mall — The Stroller as a Smart Luggage Assistant

In a busy shopping mall, when a baby wants to be held or walk for a while, parents often find themselves juggling—holding the child in one arm, pushing the stroller with the other, all while navigating crowds and complex layouts.

Now, with autonomous follow mode, the stroller reliably trails behind, carrying backpacks, shopping bags, and other belongings. Even in areas with weak GPS signals, the stroller remains stable and agile, weaving through crowds and avoiding obstacles. It becomes more than a stroller—it transforms into an intelligent mobile luggage assistant.

Key Technologies:

  • UWB + IMU Fusion Positioning: UWB ensures centimeter-level accuracy, while IMU sensors estimate dynamic states, keeping the stroller steady and responsive—even if the parent is temporarily out of sight.
  • LiDAR Perception: Pillars, escalators, and people are detected in real time. Combined with path-planning algorithms, the stroller autonomously selects safe routes and avoids collisions.

Scenario 2: Park Walks — Free Hands to Hold Your Baby

At sunset, a mother walks slowly, guiding her toddler’s first steps. The baby stumbles forward, and the mother focuses entirely on helping, while the stroller quietly follows a short distance behind.

Parents no longer need to keep glancing back or manage both pushing and guiding. Whether on smooth paths or uneven stone walkways, the stroller adjusts speed and maintains stability, acting like a loyal companion.

Key Technologies:

  • IMU Inertial Navigation: Detects slopes, acceleration, and ground conditions, enabling smooth driving on grass, ramps, and uneven terrain.
  • LiDAR + Path Planning: Continuously scans surroundings and adjusts the route in real time, ensuring the stroller never becomes a hazard near the child.

Scenario 3: Family Outings — The Stroller as a Travel Carrier

During family trips, a stroller is not only a seat for the baby but also a cargo carrier. In crowded scenic spots, airports, or subway stations, parents focus on the baby while the stroller automatically takes care of the luggage, following closely and reliably.

Key Technologies:

  • High-Precision UWB Positioning: Maintains accurate tracking even in dense crowds and interference-heavy environments.
  • Path Planning Algorithms: Combines global route optimization with local obstacle avoidance to minimize detours and delays.
  • Active Safety Mechanisms: Responds within milliseconds to sudden obstacles with emergency braking, ensuring safety.

Technology in Action: Fusing Sensing with Intelligent Control

At its core, the autonomous follow stroller is powered by multi-sensor fusion and intelligent motion control:

  1. UWB + IMU Fusion: UWB provides absolute positioning; IMU fills in the gaps during fast movements or temporary signal loss, ensuring continuous, smooth tracking.
  2. 360° LiDAR Obstacle Avoidance: Builds a real-time environmental model for precise navigation.
  3. Path Planning Algorithms: Uses A*, DWA, and hybrid approaches for global route optimization and local dynamic adjustments.
  4. Model Predictive Control (MPC): Provides smooth acceleration and braking for safe, natural motion.

Freeing Parents’ Hands, Enriching Family Moments

The smart follow stroller isn’t just about showcasing technology—it’s about reducing the physical and mental load on parents. By letting the stroller manage itself, parents can return their attention to what matters most: their child’s safety, happiness, and growth.

Looking ahead, we aim to expand intelligent follow technology into more parenting scenarios, creating childcare products that are not only technically advanced but also warm, practical, and family-centered.

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