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Smart Manhole Cover

Overview

A low-cost smart manhole cover integrates IoT sensors, communication technology, and advanced materials to improve functionality, safety, efficiency, and sustainability in managing underground utilities, drainage, and sewage systems. This comprehensive design provides real-time data to enhance urban infrastructure management.

System Benefits:

  • Prevention of sewer overflows to reduce public health risks
  • Detection of manhole vandalism
  • Real-time data monitoring via Bluetooth® Low Energy or Wi-Fi
  • Temperature monitoring for enhanced safety
  • Detection of hazardous gases
  • Complete system design optimized for low power consumption in industrial environments

Block Diagram

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4:3 ratioConnector Arrow.34Sheet.1Sheet.2Sheet.3Sheet.4WS076WS076WS076Capacitive SensorCapacitive SensorCapacitive SensorHumidity & Temp SensorHumidity & Temp SensorHumidity & Temp SensorGas SensorGas SensorGas SensorTilt Sensor 6-axis MEMSTilt Sensor 6-axis MEMSTilt Sensor 6-axis MEMSBluetooth Low Energy / Wi-FiBluetooth Low Energy / Wi-FiBluetooth Low Energy / Wi-FiConnector ArrowConnector Arrow.20Connector Arrow.21Bi-directionalBi-directional.23Bi-directional.24Bi-directional.26Bi-directional.27Speakerspeaker_8_Sheet.30Sheet.31Sheet.32Sheet.33Battery.27Sheet.36Sheet.37Sheet.38Connector LineGround - EarthSheet.41Sheet.42Sheet.43Sheet.44Single-Cell Li-ion BatterySingle-Cell Li-ion BatterySingle-Cell Li-ion BatteryMax 10.5VMax 10.5 vMax 10.5 V4.5V4.5V4.5V3.3V3.3V3.3VBoard.317BuzzerBuzzerBuzzerUSB/AC AdaptorUSB/AC AdaptorUSB/AC Adaptor4.2V4.2V4.2VVertical Wire Bundle222Sheet.58Vertical Wire Bundle.60 222Sheet.62Vertical Wire Bundle.63 222Sheet.65Vertical Wire Bundle.66 222Sheet.68Horizontal Wire BundleCommunication Lines B.795 222DC Supply 12VLabel Text 10pt.262Sheet.77Sheet.78Sheet.79Sheet.80Sheet.81Sheet.82Sheet.83Sheet.84Sheet.85Sheet.86Connector Arrow.87Single-Cell ChargerSingle-Cell ChargerSingle-Cell ChargerBuck-BoostBuck-BoostBuck-BoostSheet.91MCUMCUMCUVCCVCCVCCI²CI²CI²CGPIOGPIOGPIOUARTUARTUART

MCU

RA Arm Cortex-M MCUs

Buck-Boost

Buck-boost Regulators (Integrated FETs)

Single-Cell Charger

Battery Charger ICs

Capacitive Sensor

Sensor Signal Conditioners (SSC/AFE)

Bluetooth Low Energy / Wi-Fi

Bluetooth Low Energy
Wi-Fi MCUs

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