NHR is sharing a storm-drain monitoring application at an industrial park in Taiwan, turning an invisible drainage network into a live risk map so flood response can start before ponding becomes damage.
Turning invisible drains into a live risk map
Short-duration intense rainfall is growing more frequent, and the park's expanse of impervious pavement funnels runoff straight into the storm drains. During downpours, manual patrols could not track every node in time — the first sign of trouble was often a tenant reporting surface flooding, by which point the drains were already at capacity — while routine inspections meant lifting covers one by one for a visual check.
The NHR solution installs H01 non-contact smart radar liquid level sensors beneath manhole covers at flood-prone road sections and key drainage nodes, measuring water levels continuously. The sensors operate long-term inside manholes with no external power or cabling, reporting into a GIS cloud platform, and selected points also detect abnormal cover opening for an added public-safety layer.
Response starts before flooding does
After deployment, the park's grasp of drainage risk shifted from passive reporting to real-time system alerts. Rising water is flagged before it reaches dangerous levels, so pump dispatch, traffic direction, and tenant notification begin before ponding becomes flooding — and storm coordination changed from relayed phone calls to teams working off the same live map.
Routine inspections no longer require lifting covers point by point: manual patrol hours fell by about thirty percent, refocusing labor on alerted locations. Water-level behavior at every node now forms a complete, analyzable record that guides dredging schedules and long-term disaster-prevention planning.