Core Technology & Architecture

CPM & Smart Sensor Architecture

One weak module can drag down a whole string and it is nearly impossible to find without module-level telemetry. CPM makes it trivial.

INTELLIGENT FIELD TELEMETRY &
DIAGNOSTIC OPERATIONS CONSOLE

Field Site CAD & Satellite Array Overlay • 3-Tier Module Classification (Good / Marginal / Failed) • Rapid Safety Control

INITIALIZING STREAM...

Plant Monitored: 2.4 MWp Field Array

FIELD SITE LAYOUT PLAN (MACRO VIEW)

Field site plan background • Focuses on selected sector modules

Plan View:

NORTH ↑| 33.918°N, 118.384°W

CONSOLE FOCUS: SECTOR B-04

96 MODULES IN ACTIVE TELEMETRYHV SUBSTATION STRING #03

● Focused Section:Sector B-04: Central Substation & High-Yield PV Strings

Scale: 1:500OEM Target: 650 W / Commercial ModuleString: 1,000 V (1000V–1500V DC)Sector Yield: 94.2%

SECTOR B-04 MODULE PERFORMANCE MATRIX

650W Large Format Modules • 1,000V DC String Architecture • Click or hover any module to inspect live telemetry

Good Modules:

> 85% of OEM output (Optimal)

Marginal Performers:

75% - 85% of OEM (At-risk)

Failed Modules:

< 75% or 0W output (Critical)

Active Focus: Inverter String #03 (24 Modules in Series • 1,000V DC Active String)99.98% Telemetry Packet Integrity

INSPECTING MODULE

MOD-B04-R01-C01

Row 1 • Column 1 • String #03 (1,000V DC)

GOOD (>85%)

OEM Performance Ratio:98.2% of OEM

0%75% (Marginal Cutoff)85% (Good Baseline)100%

Active Output

638.3W

OEM Rated: 650.0 W

String Voltage

1000.0V

1000V–1500V String Std

Module Voltage

41.2V

Vmpp Nominal: 41.2V

Operating Current

15.75A

Impp Nominal: 15.8A

Cell Temperature

45.4°C

Ambient: 28.5 °C • UL 1741 PVRSS Monitored

Diagnostic Insight:

Optimal cell string performance & impedance matching

Recommended O&M Action: No maintenance required. Healthy nominal generation.

Live Field Telemetry Stream Active

FOCAL SECTOR: ZONE B-04 (96 MODULES)IRRADIANCE: 1000 W/m²TEMP: 25.0°C

The Core Problem

Series strings hide failures in aggregated averages.

In a standard solar string, 24 modules are wired in series. If one module degrades by 30%, string current drops proportionally but the inverter only reports total string output. The fault is invisible.

A CPM Smart Sensor on every module converts invisible degradation into an instant GPS-tagged field ticket eliminating hours of manual IV-curve tracing and thermal drone flights.

Series String Model: 8 Modules

100%

30%

100%

Module M3 Operating at 30% — String Power Loss: ~8.7%

CPM detects and pinpoints M3 within 3 seconds

System Architecture

The CPM data pipeline.

Stage 1 of 5

Smart Sensor Hardware

Edge Intelligence Layer

CPM Smart Sensors attach directly to each PV module terminal. They sample voltage, current, temperature, and irradiance at sub-second intervals across the entire string.

Sampling Rate: 10Hz continuous

Voltage Range: 0–60V DC

Temperature: -40C to +85C

IP67 Weatherproof enclosure

25-year design lifetime

Fault Detection Library

14+ automatically classified fault modes.

Micro-crack Detection

Bypass Diode Failure

Cell Hotspots

PID Degradation

LID Degradation

Soiling Accumulation

Module Mismatch

Interconnect Corrosion

Partial Shading

Snail Trail Contamination

Delamination

Solder Bond Fracture

Junction Box Overheating

String Current Mismatch