Municipal drainage · Drainage network

One sensing network
for the city’s underground“capillaries

A low-power, high-protection network that installs without confined-space entry. Level, flow, and cover status stay on screen — a data base for flood control, storm/sewage separation, and fine O&M.

No manhole entry Top-mount O&M IP68 Full-unit protection 3~5 yr Battery life Multi-network 4G/NB/Cat1
±2mmLevel accuracy
±1%FSVelocity accuracy
≤10μAStandby current
≥30 daysOffline local storage
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Manhole point · JZ-018 LIVE
Level LEVEL 1.82m
Flow FLOW 312m³/h
Velocity VELOCITY 0.74m/s
Cover MANHOLE Normal
sampling interval 15min · battery 91% · signal NB-IoT −78dBm
USACORE TECHNOLOGY
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MILANOINDUSTRIAL DESIGN
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ZHUHAIMANUFACTURING
Overview

From manholes to outfalls, one architecture

For city-wide drainage monitoring, use a three-layer Sense - Transport - Platform architecture. Deploy terminals and sensors at key nodes, then stream data to the platform in real time.

The solution deploys terminals and sensors at manholes, outfalls, pump stations, flood spots and other key nodes, acquiringlevel, velocity, flow, cover status, and ponding depth and sending them to the platform over wireless networks.

Built-in edge computing and data-quality algorithms keep data valid at the source. Platform visualization, intelligent alarms, statistics, and O&M dispatch support flood-control emergencies, storm/sewage separation assessment, and routine network O&M, giving teams reliable data for decisions.

Recommended Products

Four in-house products, configured to each point

Choose the product that fits each drainage node, or deploy the four products as one coordinated set.

ZYGW-LD04 Manhole pipe flow — core monitoring unit

Radar-ultrasonic flow meter

  • Radar and ultrasonic dual-wave fusion with automatic fill-ratio recognition for full and partly filled pipes
  • Top mounting and ground-level commissioning mean no manhole entry during installation or service
  • IP68 protection and a 304 stainless-steel housing resist sewage corrosion and periodic submersion
  • Built-in velocity-area algorithm, direct instantaneous / totalized flow, no second calculation on the platform
Applications

Main storm and sewage network flow monitoring · river-outfall metering · siltation diagnosis

ZYGW-CTU the data hub of the underground sensing system

Network RTU

  • hardware-level low power, deep-sleep current ≤10 µA, 1368 Wh lithium pack for 3–5 years
  • 4G/NB-IoT/Cat1 multi-mode connectivity with automatic network selection in weak underground signals
  • Built-in edge computing and filtering screen anomalies locally and reduce platform-side data cleaning
  • Bluetooth setup plus remote upgrades and configuration reduce site visits
Applications

Manhole level / flow acquisition · multi-sensor networking · low-power node

ZYGW-QJ Cover safety and overflow monitoring in one terminal

Smart manhole sensor

  • High-precision 3-axis gyroscope for lid-open / tilt / displacement, angle accuracy ±1°
  • Integrated immersion sensing covers instant overflow alarms and helps identify events quickly
  • NB-IoT low-power comms, 8000 mAh battery, normal runtime up to 5 years
  • Integrated package, easy to install, fits most standard covers, little retrofit
Applications

Municipal cover anti-theft · flood-spot overflow alarm · main-road cover safety

ZYS-F12 Preferred for open-channel / outfall flow monitoring

Ultrasonic Doppler flow meter

  • 3 cm slim body with a zero water-level dead zone for stable measurement even at low water
  • Bidirectional velocity for outfalls with reversing flow
  • IP68 and intrinsic-safety certification for chemical parks and explosion-proof outfalls
  • Velocity, water level, and temperature in one body, with standard flow output
Applications

River-outfall flow monitoring · open-channel metering · pump inlet/outlet flow totals

System Architecture

three-layer architecture that is flexible and compatible

The sensing layer aggregates upward; the network layer returns data encrypted; the application layer visualizes and dispatches.

Layer 03 · Platform Application layer
Operations screen Alarm management Statistics O&M dispatch Data sharing
Uplink
Layer 02 · Network Network layer
4G / NB-IoT / Cat1 Multi-network comms Resume on reconnect Encrypted transport
Encrypted return
Layer 01 · Perception Sensing layer
Network RTU Radar-ultrasonic flow meter Ultrasonic flow meter Radar level meter Smart manhole sensor Ponding terminal
Deployment Reference

Select by point, standardized product mix

Ready-to-use product mixes and parameter sets for different points.

Typical points
Recommended mix
Parameters
Value
Typical pointsManhole level + flow
Product mixZYGW-CTU Network RTU + ZYGW-LD04 Radar-ultrasonic flow meter
ParametersLevel, velocity, instantaneous / totalized flow, water temperature, battery voltage
Valuetop mounting, no manhole entry; dual-wave fusion that adapts across conditions; IP68 protection, 3–5 year runtime
Typical pointsManhole level only
Product mixZYGW-CTU terminal + ZYSW-LD02 Radar level meter
ParametersLevel, rate of change, battery voltage
ValueNon-contact measurement with a 3° narrow beam for shafts; ±2 mm accuracy, anti-silt design, and low maintenance
Typical pointsOpen channel / outfall flow
Product mixZYS-F12 Ultrasonic Doppler flow meter
ParametersVelocity, water level, water temperature, instantaneous / totalized flow
Valuezero water-level dead zone, bidirectional flow; IP68 + intrinsic safety for complex outfalls
Typical pointsCover status
Product mixZYGW-QJ Smart manhole sensor
ParametersLid opening, tilt, displacement, immersion, battery voltage
ValueHigh-precision attitude sensing, low power, long runtime, and easy retrofit
Typical pointsFlood-spot ponding
Product mixZYSW-LD02 Radar level meter
ParametersPonding depth, rate of change
ValueNon-contact top mounting, unaffected by silt and debris, with stable long-term outdoor operation
Why This Works

Five engineering strengths, built for underground sites

From protection and power to flow measurement, transport, and edge computing — each layer is built for real drainage conditions.

Designed for underground conditions · high reliability, long life
IP68 full-unit protection, 1 m water depth for 24 hours without failure Titanium interface and 304 / 316L stainless steel resist sewage and H2S corrosion −20 °C to +60 °C wide temperature + strong EMI immunity for complex underground environments
leading low power · long battery life
deep-sleep current ≤10 µA, 1368 Wh lithium pack for 3–5 years Sleep by default, timed report, instant wake on anomaly, balancing power and timeliness Rechargeable / mains / solar multi-mode power, flexible point fit
dual-wave flow metering · accurate metering in all conditions
surface velocity in partly filled pipes and full-section velocity in full pipes, with automatic switching Top-mount, non-contact, avoiding siltation and debris wrap at the source Installation, commissioning, and maintenance stay at ground level for lower cost and safer work
multi-network transport · stable data delivery
4G/NB-IoT/Cat.1 auto-select, keeping underground coverage Bluetooth local setup, phone app for config and readings, no well opening Offline local storage for at least 30 days, with automatic backfill after recovery and no data loss
edge intelligence · high-quality, efficient data
Auto-filters waves, floatables, and flow disturbance, dropping spikes Local flags for abnormal data reduce platform-side cleaning Instant reports for exceedance, faults, and low voltage, plus remote upgrade support
Platform Features

Platform functions, from monitoring to a closed loop

One platform covers live visualization, multi-level warnings, reports, and the full O&M loop.

Monitoring and visualization

  • Live on screenLevel, velocity, flow, cover status, ponding, and device status in real time
  • GIS overviewPoint location, live status, and alarms are shown clearly on the map

Alarms and warnings

  • Multi-dimension exceedancecovers level, velocity, cover movement, immersion, fault, low voltage, and more
  • Multi-level pushRate-of-change warnings delivered by SMS, WeChat, and other channels

Analysis and reports

  • Trend analysisLevel and flow curves, multi-dimension history query and export
  • Auto reportsDaily / monthly / yearly reports, overflow counts, full-pipe duration, one-click uptime stats

O&M and management

  • full cycleEquipment files, install records, and maintenance logs in one place
  • alarm closed loopDispatch, on-site handling, and result feedback as a closed loop; open API for third-party integration
Technical Specs

Typical specifications

Typical specifications of representative products,Parameters can be tailored to each point.

Level range0.03 ~ 10 m(customizable)
Level accuracy±2 mm radar / ±0.25% FS pressure
Velocity range0.02 ~ 20 m/s
Velocity accuracy±1%FS
Flow accuracy±3%FS(regular sections)
Angle accuracy±1°(Coversensors)
Protection ratingIP68
Operating temperature−20℃ ~ +60℃
Communications4G / NB-IoT / Cat1 / Bluetooth
Standby current≤10μA @12VDC
Battery life3 ~ 5 yr(15min sampling / report)
Local storage≥30 days of history
Use Cases

Typical applications

One sensing network,Eight high-frequency scenes from routine O&M to emergency dispatch.

routine network monitoring

Learn level and flow patterns, diagnose siltation, and support fine O&M.

River outfallsFlowmonitoring

Supervise outfall discharge patterns,with water-quality monitoring for tracing and load control.

Flood-spot ponding

Monitor ponding depth and rate of change in real time, supporting flood warning and emergency dispatch.

Pump-station wet wellsmonitoring

Link pump start/stop dispatch,raise operating efficiency,reduce overflow risk.

Storage tanksstatus monitoring

See storage-tank level changes in real time, supporting dispatch and performance review.

storm/sewage separation assessment

before/after retrofitFlowdata comparison,Quantify project results.

Coversafety monitoring

lid-open,displacement,instant immersion alarm,reduce road safety incidents.

Smart siltation diagnosis

Use level and flow anomaly signatures to identify silted or blocked segments.

Get Your Plan

Customize your
drainage monitoring solution

Tell us the point type, parameters, and project scale. Our engineers will return a selection recommendation, configuration list, and quotation within 24 hours.

Discuss this solution →
Tel139 2696 7285
AddressNo. 40 Jinfeng West Road, Hi-tech Zone, Zhuhai