Seismosignal 410 Better Crackrar [NEW]

| Metric | Baseline (SeismoSignal 410) | After Upgrades (Target) | Improvement | |--------|----------------------------|------------------------|-------------| | Detection Probability (DP) for 0.5 mm cracks | 0.45 | 0.80 | +78 % | | False Positive Rate (FPR) | 0.32 events/min | 0.12 events/min | –62 % | | Location Error (LE) | N/A (single sensor) | ≤ 0.12 m (3‑sensor array) | New capability | | SNR (AE band 20‑200 kHz) | 8 dB | 16 dB | +8 dB | | Data Volume (per day) | 5 GB (raw) | 0.8 GB (compressed + event‑only) | –84 % |

Projections are based on Monte‑Carlo simulations of AE wave propagation in heterogeneous concrete coupled with empirical noise models from urban construction sites. seismosignal 410 better crackrar

When comparing SeismoSignal with other seismic analysis tools or what might be referred to as a "better crackrar," several factors come into play: | Metric | Baseline (SeismoSignal 410) | After

| Term | Meaning | |------|----------| | CrackRar | Working name for the enhanced crack‑detection workflow (R‑Acoustic‑Radiation). | | AE | Acoustic Emission – transient elastic waves generated by rapid crack formation or propagation. | | WBED | Wavelet‑Based Event Detection – a time‑frequency method to isolate AE events. | | SNR | Signal‑to‑Noise Ratio. | | FP | False Positive (non‑crack event mis‑identified as a crack). | | TP | True Positive (correctly identified crack event). | high‑speed ADC board

| Phase | Duration | Milestones | |-------|----------|------------| | 1. Feasibility & Procurement | 0‑2 mo | Select piezo‑AE sensors, PGA, high‑speed ADC board; finalize design. | | 2. Prototype Development | 2‑5 mo | Assemble hardware, integrate firmware (WBED, TDOA). | | 3. Laboratory Validation | 5‑7 mo | Run PLB tests; tune thresholds; train ML classifier. | | 4. Field Pilot (1 site) | 7‑9 mo | Install on a test bridge; collect 4 weeks of data; refine algorithms. | | 5. Production‑Ready Design | 9‑11 mo | Harden enclosures, finalize PCB layout, certify for IP‑66. | | 6. Documentation & Handover | 11‑12 mo | Deliver user manual, calibration procedures, and software SDK. |

Risk mitigation – Parallel development tracks for hardware and firmware to avoid schedule slippage; early integration of a modular software framework (C++/Python API) to allow future algorithm upgrades.