Renesas Electronics Corporation
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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
  • Smart city

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4:3 ratio Connector Arrow.34 Sheet.1 Sheet.2 Sheet.3 Sheet.4 WS076 WS076 WS076 Capacitive Sensor Capacitive Sensor Capacitive Sensor Humidity & Temp Sensor Humidity & Temp Sensor Humidity & Temp Sensor Gas Sensor Gas Sensor Gas Sensor Tilt Sensor 6-axis MEMS Tilt Sensor 6-axis MEMS Tilt Sensor 6-axis MEMS Bluetooth Low Energy / Wi-Fi Bluetooth Low Energy / Wi-Fi Bluetooth Low Energy / Wi-Fi Connector Arrow Connector Arrow.20 Connector Arrow.21 Bi-directional Bi-directional.23 Bi-directional.24 Bi-directional.26 Bi-directional.27 Speaker speaker_8_ Sheet.30 Sheet.31 Sheet.32 Sheet.33 Battery.27 Sheet.36 Sheet.37 Sheet.38 Connector Line Ground - Earth Sheet.41 Sheet.42 Sheet.43 Sheet.44 Single-Cell Li-ion Battery Single-Cell Li-ion Battery Single-Cell Li-ion Battery Max 10.5V Max 10.5 v Max 10.5 V 4.5V 4.5V 4.5V 3.3V 3.3V 3.3V Board.317 Buzzer Buzzer Buzzer USB/AC Adaptor USB/AC Adaptor USB/AC Adaptor 4.2V 4.2V 4.2V Vertical Wire Bundle 2 2 2 Sheet.58 Vertical Wire Bundle.60 2 2 2 Sheet.62 Vertical Wire Bundle.63 2 2 2 Sheet.65 Vertical Wire Bundle.66 2 2 2 Sheet.68 Horizontal Wire Bundle Communication Lines B.795 2 2 2 DC Supply 12V Label Text 10pt.262 Sheet.77 Sheet.78 Sheet.79 Sheet.80 Sheet.81 Sheet.82 Sheet.83 Sheet.84 Sheet.85 Sheet.86 Connector Arrow.87 Single-Cell Charger Single-Cell Charger Single-Cell Charger Buck-Boost Buck-Boost Buck-Boost Sheet.91 MCU MCU MCU VCC VCC VCC I²C I²C I²C GPIO GPIO GPIO UART UART UART

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
Low Power Wi-Fi