Unitree A1

Applications

• Research and development
• Education
• Inspection and maintenance
• Patrol and detection
• Last-mile delivery
• Care
• Exploration and rescue

Features

High speed

• The fastest, most stable quadruped robot in its class with a maximum continuous running speed of 3.3 m/s.

Incredible stability

• Advanced dynamic balancing algorithm enables A1 to swiftly regain its balance following impact or falls.

Multi eye intelligent depth camera

• Active infrared stereo depth technology.
• 1080p resolution with real-time transmission.
• Depth distance of 0.3 – 10 metres.
• Error accuracy within 2 metres = <2%

Patented power system

• 5 kg payload capacity.
• 1 – 2.5 hour operating time.
• A crucial feature for high-speed locomotion, A1’s highly tuned power system generates up to 33.5 N-m torque.
• Maximum joint velocity of 21 rad/s.
• Access to all sensor data.
• Position, speed and torque commands can be sent separately to each motor.

Patented body structure and layout

• High strength, lightweight, easy to maintain. 
• 24V external power input. 5V, 12V, 19V power supply, enabling additional external equipment. 
• Equipped with high-performance dual master control (sensing master control and motion master control).
• External interface: 4 x USB, 2 x HDMI, 2 x Ethernet
• Master control can be upgraded to TX2.
• Standard configuration includes RealSense depth cameras.
• Capable of map building and obstacle avoidance.

Patented sensitive foot contact

• Integrated force sensor at each foot end, enabling real-time contact states of feet in any situation. 
• Greater accuracy and sensitivity than systems that estimate feet contacts using motor currents. 
• Integrate foot contact sensors with estimated motor current foot sensors to provide extremely high sensitivity and reliability. 
• The foot end is waterproof and dust-proof, and easy to replace. 

Vision-based autonomous object tracking

• Realtime tracking of objects within visual range.
• Support online machine learning of the target features.
• Displaying the confidence of tracking using colour box (green → red, 100% → 0%) 

Vision-based autonomous object avoidance

• Avoid obstacles within 0.8m of the robot’s visual range
• Capable of detecting the obstacle shapes to adjust the body position. 
• Realtime display of the adjustment of the robot’s body, maximum distance and area within the visual angle, and the range of the walking track.

LiDAR integration

• Integrate high-resolution LiDAR to support map building, autonomous positioning, navigation planning, and dynamic obstacle avoidance.

User-friendly interface

• Connect directly to the robot’s built-in dual main control and bottom controller via ethernet. 
• Ideal for real-time data transmission such as visual perception. 
• Access to lower-level control – read and control all motors and sensors of the robot in real-time with easy to use open-source robot algorithm. 
• Access to high-level control – send high-level movement commands such as forward, backward, left and right movements to the robot directly. 

Proven software and hardware reliability

• More than six years in the field of quadruped robot design and development
• One A1 robot performed backflips 80 times during CES 2020
• Used closed-loop backflip algorithm to ensure motion stability