Street Light Mesh Network for Earthquake Epicenter Detection
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Solution Overview
Problem
Current systems for detecting earthquakes and locating epicenters are work-intensive and costly to install and operate, lacking a fail-safe and cost-effective solution for simultaneous earthquake detection and tsunami warning systems.
Innovation Solution
A network of street lights equipped with control modules, including acceleration sensors and communication modules, forms a mesh network for fast and fail-safe communication, allowing for earthquake detection and epicenter location, with redundant setup ensuring system stability and reduced operational costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional seismograph networks and tsunami warning systems are deployed, then earthquake detection and epicenter location accuracy is improved, but installation and operational costs increase significantly
Solution Approach 1:
The patent repurposes existing street light infrastructure to perform multiple functions: illumination, earthquake detection via accelerometers, and tsunami warning dissemination. By integrating sensors and communication modules into conventional street lights, the system eliminates the need for dedicated seismograph installations while maintaining detection capabilities.
Solution Approach 2:
The system utilizes the existing street light network infrastructure that is already deployed throughout communities. These self-standing structures with power and communication capabilities serve themselves as detection nodes, eliminating the need for separate installation of detection equipment and reducing overall system complexity.
2Reliability
If dedicated tsunami warning systems are installed, then warning reliability is improved, but operational costs increase
Solution Approach 1:
Street light control modules serve dual purposes: normal illumination control and tsunami warning signal dissemination. The same communication infrastructure used for lighting management is leveraged to transmit emergency warnings, eliminating the need for separate warning system operational expenses.
Solution Approach 2:
The patent combines the tsunami warning function with the existing street light control system. By merging these functions into a single integrated platform, the system reduces operational costs while maintaining reliable warning capabilities through the established lighting infrastructure.
3Area of stationary object
If comprehensive sensor networks are deployed for earthquake detection, then detection coverage is improved, but system complexity and installation workload increase
Solution Approach 1:
The street light structures, already distributed throughout the detection area, serve as self-contained detection nodes. Each unit independently houses sensors, processing capability, and communication modules, eliminating the need for complex network installation while achieving comprehensive geographic coverage.
Solution Approach 2:
The detection network is segmented into independent street light units distributed across the monitoring area. Each unit operates autonomously but contributes to the overall network, allowing simple individual installations that collectively provide extensive coverage without requiring complex integrated installation procedures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The network enables efficient detection and analysis of seismic waves, providing detailed earthquake images and enabling timely warnings with reduced operational expenses and improved system stability.
Implementation Method 1
At least some of the control modules comprise at least one sensor for detecting acceleration and/or seismic waves
Data Source
AI summary
Described herein is method for the detection of seismic activity using a network of lights, and in particular, street lights (43) arranged over a number of streets (42). Each light includes a control module having the facility for both long- and short-distance communication, the control modules being grouped with other control modules and associated with a group controller to create a short-distance or mesh network. Each control module includes a sensor which is capable of detecting seismic activity and data relating to such activity may be transmitted to a central server via its group controller using long-distance communication. Even if the sensors are relatively inaccurate, the high number of such sensors present in the network makes it possible to detect and analyze the activity using geocoordinate information provided by the control modules at the server. Information relating to an epicentre of an earthquake can be determined and distributed to control modules in the vicinity of the detected seismic activity (50) to provide warning light signals for the population in that vicinity.