Street Light Mesh Network for Earthquake Epicentre Detection
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Solution Overview
Problem
Current earthquake detection and warning systems, relying on seismographs and tsunami warning networks, are labor-intensive and costly to install and maintain, and lack a fail-safe mechanism for efficient seismic wave analysis and communication.
Innovation Solution
A network of street lights equipped with control modules featuring long-distance and short-distance communication modules, GPS, and seismic sensors, forming a mesh network for fail-safe and cost-effective earthquake detection and warning system, allowing for redundant control and efficient data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a network of seismographs is used for earthquake detection, then detection 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 and earthquake detection. By integrating seismic sensors into street light control modules, the system eliminates the need for separate seismograph installations while maintaining detection capabilities across the entire street light network.
Solution Approach 2:
The street light system serves itself by using its existing communication infrastructure (control modules, networks) to detect and report seismic activity. The control modules that already manage lighting operations are repurposed to collect and transmit seismic data, eliminating the need for dedicated monitoring equipment.
2Reliability
If a dedicated tsunami warning system is installed, then warning reliability is improved, but operational costs increase
Solution Approach 1:
The street light control system performs dual functions: lighting control and seismic monitoring for tsunami warnings. The same communication network and control modules used for lighting management are utilized to detect earthquakes and transmit warning signals, eliminating the need for separate warning system operations.
Solution Approach 2:
The patent combines earthquake detection, data transmission, and warning signal delivery into a single integrated system using existing street light infrastructure. The control modules that manage lighting also handle seismic data collection and communication, merging multiple functions into one cost-effective platform.
3Measurement precision
If seismographs are deployed throughout the network, then seismic wave detection precision is improved, but the number of components increases
Solution Approach 1:
Each street light control module is equipped with seismic sensing capability, transforming ordinary lighting controls into distributed seismic sensors. This approach uses existing infrastructure components rather than adding dedicated sensors, maintaining high detection precision through distributed monitoring without increasing component quantity.
4Reliability
If elaborate warning systems are installed, then communication reliability is improved, but system complexity increases
Solution Approach 1:
The warning communication function is merged with the existing street light control network. The same control modules and communication infrastructure used for lighting management are utilized to transmit earthquake alerts and tsunami warnings, simplifying system structure while maintaining reliable communication channels.
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
Enables accurate and detailed earthquake detection and warning, with reduced operational costs and improved system stability, allowing for timely and reliable communication of seismic data and tsunami warnings to road users.
Implementation Method 1
At least some of the control modules comprise at least one sensor for detecting acceleration and/or seismic waves
Data Source
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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 analyse 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.