Smart Tree Monitoring System for Urban Tree Management


The smart tree monitoring system captures the tilting angles and direction of tree displacement using smart sensing technology. It also sends out alerts and alarms to the stakeholders based on the dynamic thresholds. All these are achieved by a combination of the state-of-the-art IoT sensors, data analytics and an interactive dashboard.

  • Smart Tree Monitoring System for Urban Tree Management 0
  • Smart Tree Monitoring System for Urban Tree Management 1
  • Smart Tree Monitoring System for Urban Tree Management 2
Research completion
Commercialisation opportunities
IP licensing, Collaboration for technology development in various application segments, Product distribution
Problem addressed

Regular on-site tree inspections require a lot of manpower and time, which usually take place once or twice a year. With the Smart Tree Monitoring System, trees can now be monitored in a much more efficient way, helping arborists and tree managers make informed decisions and aiding urban tree management.

  • IoT sensors for measuring the tilting angles of trees and their moving directions.
  • A set of algorithms that can identify sharp variations in tilting angle and different patterns of increasing leaning trend of trees.
Key impact
  • It allows continuous monitoring of tree leaning, even under extreme weather.
  • With the aid of analytic algorithms, users will be notified when there are trees with "imminent risk" or require "close monitoring".
  • Gold Medal at the "2021 Geneva International Exhibition of Inventions"
  • 2021 Smart 50 Awards
  • Urban trees


  • Short-term Patent: 32021035715.0
The Hong Kong Polytechnic University (PolyU)

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