When you see the Boston Dynamics Atlas doing a backflip, wonder how it can be as stable as a cat? The answer lies in its "secret weapon hidden in the body" ——IMU (Inertial Measurement Unit)!

|| The IMU is the "sensory hub" of the humanoid robot

Just like the vestibular system in our ears, the IMU consists of an accelerometer and a gyroscope that can sense in real time:

Body position (stand/sit/upside down)

Movement speed (fast walk/sprint/stall)

Spatial orientation (precise positioning of east, south, west and north)

|| A humanoid robot without an IMU is like a blind man riding a horse

Imagine: The biped robot has to do the following:

:: Reach for objects at a height (you need to sense the shift in your center of gravity)

::Cleverly bypass obstacles (need to predict the trajectory of the action)

:: Going up and down stairs (dynamic gait adjustment required)

Gently support the elderly when caring for them (millimeter-level balance control is required)

Every step is like walking on a tightrope, and if you make a mistake, you will "plop" to the ground!

|| The three great skills of IMU

1 Master of fall prevention

When the sensor detects that the center of gravity is beyond a safety threshold (such as being pushed by an external force), the emergency balance strategy —— is triggered within 0.1 seconds, either by spreading the legs like a spacewalker or by squatting down instantly to stabilize the body.

2 action photographers

Recording the angular velocity and acceleration of each joint in a robot is like adding slow-motion effects to an action. By analyzing this data, engineers can continuously optimize the "muscle memory" of the robot to make movements smoother and more natural.

3 Navigation experts

Combined with visual system and IMU data, the robot is like a "stereoscopic radar". Even in complex environments (such as warehouse shelves), it can plan the optimal path like a sweeping robot, never getting lost.

|| The future is here: When IMU meets AI

The AI intelligent system equipped with the latest generation of IMU can not only collect data, but also:

Predict ground material (carpet/tiles/slope)

Identify body movement intentions

Plan your own obstacle avoidance route

It's like giving robots the ability to "anticipate danger"!

|| General IMU VS LINS Technology IMU: Evolution from "lame" to "cheetah"

Most IMUs on the market look like thick glasses —— can see but are blurry:

Dynamic scenes are prone to drift (such as sudden "dizziness" when turning around)

Data delay in complex contact (as if the robot had a 0.5-second "age spot")

LINS Technology IMU black technology three-piece set:

1. Multi-axis fusion algorithm of "neural network"

At the same time, multi-dimensional sensor data are read and optimized by neural network calibration algorithm

Turn "tightrope walking" into "skating on flat ground" as steady as an old dog

2. "Perfect circle compensation" anti-dizziness design

±0.1° accuracy is maintained in continuous rotation

Temperature drift rate <0.001%/℃ (no heat stroke from the Antarctic to the tropics)

3. Oracle AI prediction module

Predict the action risk after 50ms through deep learning

It is three times faster than human reaction (truly "quick eyes and quick hands")