Smart Infra · Field application

Manhole & Underground Chamber Monitoring

Know when a chamber opens. Review access events, device health and field confirmation in one monitoring workflow.

Discuss your requirement
Live field validation
Spring-position sensor and monitoring station installed inside an underground chamber; equipment labels redacted
Real underground installation showing the spring sensing arrangement. Equipment labels redacted.
The operational need

Operational challenge

Access can happen between inspections. A closed cover also weakens wireless signals, so both sensing and connectivity need site checks.

Open underground chamber showing the internal cables and field environment
Chamber interior: cable layout and access conditions.

What we monitor

Cover state

Opening and closure events from the installed sensing mechanism.

Device heartbeat

Periodic status reporting and inactivity visibility when communication conditions permit.

Battery condition

Voltage records for maintenance review.

Communication health

Signal information alongside events and historical records.

How the system works

  1. Field sensing

    Detect cover movement with the selected sensor.

  2. Wireless reporting

    Send events and health readings wirelessly.

  3. Monitoring platform

    Review timestamped status in the dashboard.

  4. Alert & response

    Notify the responsible field team.

  5. Operational verification

    Confirm the activity on site.

Field validation

Live field validation
Jan–Jun 2026Field demonstration
4 eventsVerified opening activity
2 channelsMobile alerts validated
  • January–June 2026: Live Malaysian field demonstration.
  • Four opening events: February–March records matched contractor or inspection activity.
  • Two mobile alert channels: Delivery validated alongside dashboard history.
  • May adjustment: Corrected spring fit restored closed-state detection.

Results describe the demonstration. Closed-cover radio performance and sensing fit still require acceptance checks at each site.

Open chamber with the cover removed; cast identification redacted
Open cover: the access condition that monitoring needs to detect.
Closed underground chamber cover; cast identification redacted
Closed cover: radio performance must be checked in this normal operating state.

Engineering and reliability lessons

Test with the cover closed

Antenna and communication changes improved reporting; difficult underground conditions still need assessment.

Confirm mechanical fit

An overlong spring prevented closure detection until it was adjusted and retested.

Protect the assembly

Antenna damage was observed; the cause was unconfirmed. Inspect the device during maintenance.

Verify each alert

Cover movement identifies activity. Field confirmation establishes whether access was authorized.

Technical highlights

Review the documented configuration and its deployment limits.

View specifications and configuration notes
  • Proximity or spring-position sensing selected for the cover arrangement.
  • Wireless mobile-network communication.
  • Replaceable 7.2 V / 19,000 mAh battery in the documented metal-series configuration.
  • IP65 metal enclosure specification; documented operating range of 0–60°C.
  • Screw or magnetic mounting, subject to asset suitability.
  • Dashboard records and mobile notification workflow.

Battery service life depends on transmission frequency, signal conditions and the final configuration. The demonstration does not establish a guaranteed multi-year operating life.

Deployment process

  1. Survey & install

    Check the chamber, mounting and antenna position.

  2. Register & baseline

    Record open- and closed-cover signal and voltage.

  3. Controlled test

    Verify opening, closure and alerts.

  4. Tune & verify

    Adjust sensing fit and connectivity.

  5. Report & scale

    Agree acceptance and response contacts.

Explore all monitoring use cases · View Smart Infra

Discuss Your Monitoring Requirement

Tell us the chamber type, field conditions and access event you need to detect. We can propose a practical pilot configuration.

Email AI-REKA