Always-On Robots Watch, Recall, and Act Across Concurrent Dual-Arm Streams

Always-On Robots Watch, Recall, and Act Across Concurrent Dual-Arm Streams

Ding Yi, Peiwen Sun, Chenchu Rong, Jianan Wang, Xili Dai +2 more

2 min read•Sep 24, 2026

Recent systems address only part of the always-on, dual-arm regime. ARMS contrasts with these systems across the relevant axes.

Comparison of robotics systems for always-on dual-arm operation

ARMS

ARMS is a deliberately simple policy for the always-on, dual-arm setting. Rather than building a dedicated mechanism for each new demand, ARMS keeps a single pretrained backbone and turns everything else into context: three lightweight modules each convert one signal—live perception, embodied state, and past actions—into tokens the backbone reads before it acts.

ARMS architecture for combining perception, embodied state, and action history

Real-Robot Deployment and Qualitative Results

ARMS sustains proactive concurrency, self-history recall, and priority arbitration together across composed streams, a real robot, and long horizons, where single-ingredient policies do not. Each module is necessary.

On one 80 GB accelerator, the asynchronous modules keep median trigger-to-decision latency under 200 ms while both arms execute.

Conclusion and Limitations

Limitations

The real-robot evidence is small-scale and based on a single Cobot Magic platform, with only approximately 200 staged always-on streams. Large-scale evidence, especially for the full overload regime exercised mainly in family D, remains limited.

Standing guards are predefined, and the default overload policy uses fixed, dataset-defined priority tiers. Broader real-world data, learned guards and priorities, and richer overload policies are natural next steps.

Frequently Asked Questions

What is ARMS designed for?

ARMS is designed for always-on, dual-arm robotic operation.

What signals do ARMS modules convert into tokens?

The modules convert live perception, embodied state, and past actions into tokens for a pretrained backbone.

What capabilities does ARMS combine?

ARMS combines proactive concurrency, self-history recall, and priority arbitration.

What is the reported trigger-to-decision latency?

On one 80 GB accelerator, median trigger-to-decision latency remains under 200 ms while both arms execute.