KORTHOS / ECOSYSTEM / PRODUCT

Kachaka

About

About Kachaka

Kachaka is Preferred Robotics’ compact household robot for moving everyday items on compatible wheeled furniture. It drives underneath a Kachaka shelf, docks with it and takes it to a saved location on a voice command or through the app. Users map their home, name furniture and destinations, and set up routines for tasks such as bringing supplies to a workspace or returning a shelf to storage. The original household product launched in Japan in May 2023.

Its navigation combines LiDAR, cameras and three-dimensional sensing to identify obstacles and maintain its position as the room changes. A docking sensor locates the furniture connection. The robot can move a combined furniture-and-content load of up to 20 kilograms. An optional developer API exposes movement, docking, robot status and sensor data through Python, ROS 2 and gRPC interfaces. Robot use requires compatible furniture and a monthly software subscription.

Capabilities

Source-backed capabilities

  • Operating environments: RoboCup 2025 competition, Salvador, Indoor household rooms
  • Control modes: Kachaka Api Controlled Navigation, Autonomous
  • Navigation and obstacle avoidance

    Research demonstration - Complete the Navigation Hard+1 challenge using the Kachaka API in the BabyTigers-R competition configuration. - environment: RoboCup 2025 competition, Salvador

    Source
  • Material handling

    Claimed - Bring a compatible Kachaka shelf and its contents to a saved household destination, then return the furniture when requested. - environment: Indoor household rooms

    Source

Observed use

Exact-product configurations are shown without inferring supply, purchase, customer status, standard fit, deployment or partnership.

  • Elephant Robotics myPalletizer

    Research Experiment - Mounted - Physical - Ryukoku University mounted a myPalletizer arm on Kachaka for its 2025 BabyTigers-R competition robot; the team moved to myAGV in 2026.

    Source

Supply

Supply / Components

  • Kachaka

    Sda845 For Kachaka - Compute & Control - Qualcomm - Preferred Robotics Kachaka is built on Qualcomm SDA845 compute - source: qualcomm.com

    Source

Research

  • Team Description Paper: BabyTigers-R 2026

    Research Publication - Ryukoku University describes BabyTigers-R’s transition from Kachaka in 2025 to myAGV in 2026. The team reports completing the RoboCup 2025 Navigation Hard+1 challenge through the Kachaka API, while small wheels struggled with cables at competition venues. The paper documents a research configuration with a myPalletizer arm and the architecture planned for the new competition season.

    Source

Resources

Curated durable documents and official technical references.