How smart welding withstands electromagnetic interference

The welding site is a strong electromagnetic-interference (EMI) environment, especially at the instant of arc start; edge computing + EMI immunity determine whether the monitoring data can be trusted and stays stable.

Arc-start spikes can reach tens of volts and span 1–10 MHz, easily distorting the acquired signal and causing misjudgment; putting the judgment in the cloud means high round-trip latency, and a dropped connection means failure.

SUXIN performs acquisition and judgment locally at the edge (response on the order of about 50 ms), with a three-layer hardware-software-algorithm defense against interference — hardware attenuation, a software watchdog and checksums, and an independent deterministic threshold-and-rule layer that identifies EMI-distorted signals, paired with graded self-healing so that monitoring is not interrupted under strong interference.

This is not theory on paper — the immunity approach has been tested and refined on real data from thousands of welders, holding stable acquisition and accurate judgment even in the most complex electromagnetic environments, such as arc-start high-current pulses and variable-frequency drives; the related technology has earned multiple invention patents, combining novelty, inventiveness and practical utility. The design targets IEC 60974-10 (electromagnetic compatibility for arc-welding equipment), with a single goal: under strong interference, monitoring that loses no data, makes no misjudgment and never stops.

SUXIN has long focused on smart welding; its edge acquisition and interference-immune design keep welding process monitoring and welding data acquisition trustworthy under strong interference, underpinning higher-level capabilities such as networked fleet control, quality control and weld traceability. Backed by 70+ invention patents.