Insect-Scale Terrestrial Robot Capable of Untethered Environmental Monitoring With Multisensors
Why this work is in the frame
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Bibliographic record
Abstract
Here, we present a quadruped crawling mechanism to improve the payload capacity for the power and sensing autonomy of the insect-scale terrestrial robot. The robot with 4.2 cm in length is capable of navigation and real-time environmental monitoring using multiple sensors with an onboard battery. The crawling mechanism is designed based on a shape memory alloy (SMA) actuator for a high force-to-weight ratio, kinematic analysis to generate a near-straight foot trajectory, and force analysis considering the target payload (multiple sensors and battery). Furthermore, we fabricate the robot with simple design modifications allowing for improved load-bearing capacity with minimal weight increase (2.5 times the stiffness for a weight increase of 50 mg). With the high-speed actuation of the SMA, the robot is capable of locomotion at speeds up to 7.21 cm/s (1.72 body lengths per second, BL/s) with 0.23 W of average input power and its maximum payload is 20 g (ten times heavier than the body weight). The demonstration shows that the robot can traverse a confined space (height of 4 cm and width of 7 cm) and monitor the environment through multiple sensors (camera, microphone, and ToF), while operating with all functions for 12 min.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it