Operational Brief

Battery energy storage safety monitoring beyond the BMS.

HERTZINNO adds an external physical-sensing layer around battery containers, PCS rooms, switchgear, cable routes and cooling systems. Online acoustic and infrared imaging supports the localization of abnormal acoustic emissions and hot spots, while DTS provides continuous distributed temperature visibility along battery racks, cable trays, trenches and liquid-cooling routes.

This solution complements — and does not replace — the BMS, fire detection, gas detection and other mandatory protection systems specified for the energy storage station.

Battery energy storage safety monitoring with online acoustic infrared imaging and DTS temperature sensing
Battery Containers & Racks Acoustic and infrared monitoring for abnormal release-related sound, heat buildup and thermal-risk indicators.
PCS & Switchgear Acoustic and thermal imaging for discharge-related sound, hot spots and abnormal conditions in electrical areas.
Battery Packs & Cable Routes DTS works like a continuous chain of temperature sensors along battery groups, trays and trenches.
Cooling & Auxiliary Systems AI acoustic monitoring for pumps, fans, compressors, valves and liquid cooling equipment.
Safety & Reliability Risks

Physical warning signals around a battery energy storage station

Some developing faults produce physical signals outside normal BMS measurements, including pressure-release sound, abnormal acoustic emissions, hot spots, temperature gradients, cable overheating, cooling-equipment wear and discharge-related activity in PCS or switchgear areas.

01

Abnormal Release & Leakage-Related Sound

Battery containers, exhaust paths, valves, cooling lines and enclosed areas may generate abnormal acoustic emissions during leakage-related or pressure-release events.

02

Heat Buildup & Thermal Risk

Infrared imaging and distributed temperature sensing add spatial visibility for local heat buildup, temperature gradients and abnormal changes across battery packs, racks and containers.

03

Cable & Battery Temperature

DTS provides distributed temperature visibility along battery groups, DC cable routes, trays and trenches, acting like many small temperature sensors along one optical fiber.

04

Electrical & Cooling Equipment Faults

PCS cabinets, switchgear, pumps, fans, compressors and liquid cooling systems may show discharge, hot spots, abnormal sound or wear-related signatures before visible failure.

Sensing Architecture

A complementary sensing layer for thermal, acoustic and infrastructure risks.

The architecture combines online acoustic and infrared imaging, distributed temperature sensing and equipment acoustic monitoring. Together, these technologies extend visibility beyond cell-level data to battery enclosures, electrical rooms, cable infrastructure and cooling equipment.

HERTZINNO BESS monitoring architecture with online acoustic infrared camera and DTS fiber temperature sensing
Online Acoustic + IR Layer Fixed acoustic and infrared imaging supports localization of abnormal acoustic emissions and hot spots.
DTS Temperature Layer Optical fiber acts like continuous temperature sensors for battery racks, packs, cables and trenches.
Electrical Room Layer Acoustic and thermal imaging helps locate discharge, hot spots and abnormal sound sources in PCS and switchgear.
Cooling Equipment Layer AI voiceprint monitoring listens for abnormal patterns from pumps, fans, valves and compressors.
Operational Value

Additional physical visibility beyond BMS data

BMS data remains essential. Acoustic, infrared and distributed temperature sensing add complementary spatial information around battery containers, cable routes, PCS rooms, cooling systems and auxiliary infrastructure.

Monitoring Need
Traditional Method
HERTZINNO Approach
Abnormal release or leakage-related sound
Periodic inspection and dedicated gas or pressure alarms at selected locations.
Online acoustic imaging supports remote localization of abnormal acoustic sources for follow-up inspection.
Thermal runaway risk
Battery alarms or periodic thermal inspection with limited spatial coverage.
Infrared imaging and DTS add spatial visibility for hot spots, gradients and temperature changes.
Battery pack and cable temperature
Point temperature sensors with limited coverage and fixed locations.
DTS acts like a continuous chain of temperature sensors along battery groups, cables, trays and trenches.
Electrical room risk
Manual inspection, thermal patrol or alarm after a threshold is crossed.
Acoustic and infrared imaging supports localization of discharge-related sound, hot spots and abnormal sources.
Cooling equipment health
Reactive maintenance after vibration alarms or cooling performance drops.
AI voiceprint monitoring listens for abnormal patterns from pumps, fans, compressors and valves.

Discuss your BESS monitoring requirements

Share the station layout, battery-container configuration, cable routes and priority risk points. HERTZINNO can help map suitable acoustic, infrared and fiber-sensing locations for technical evaluation.

Contact HERTZINNO
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