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IoT Structural Monitoring
The world of structural monitoring is undergoing rapid evolution. Gone are the days when civil engineers relied solely on manual spot-checks to assess bridge, building, and dam health.
Nowadays, IoT sensor networks enable engineers to monitor the real-time status of structures, identifying issues before they escalate into catastrophic failures.
The space is exploding right now. If you work with sensor wiring and electronics, there’s never been a better time to be involved in IoT builds.
Here’s what you’ll learn:
- What Is IoT Structural Monitoring?
- Why Aging Infrastructure Requires Smart Sensors
- Importance of Wiring and Soldering for IoT Sensors
- 4x IoT Sensor Types Commonly Used in Structural Monitoring
- How IoT Structural Monitoring Will Change The Future
What Is IoT Structural Monitoring?
IoT structural monitoring refers to using networked sensors to remotely monitor the health and stability of bridges, buildings, tunnels, and other physical structures.
IoT sensors are placed on a structure to measure factors such as vibration, structural strain, temperature, motion, and more.
The sensor collects that data locally, then either wirelessly or through wired connections, sends it to a central location for real-time analysis.
IoT sensors are essentially giving civil engineers constant health checks for their buildings.
Instead of waiting for something to physically break or visibly crack… IoT sensors can detect minute changes in structural integrity long before any issues become visible to the naked eye. Engineers can react to potential issues long before they do any serious damage.
Current market research from Precedence Research estimates the global structural health monitoring market was worth $6.75 billion in 2024. By 2034, it expects that figure to reach $27 billion. We’re talking compound annual growth rates of just under 15%.
Not too shabby.
Why Aging Infrastructure Needs Smart Sensors
Here’s the thing…
A lot of infrastructure around the world is getting up there in age. Like, really old. ASCE’s latest infrastructure report estimates that roughly 45% of bridges in the U.S. were built past their intended 50-year life expectancy. About 1 in 3 of America’s 623,000 bridges require reparations or replacement.
Throwing band-aids on aging infrastructure just isn’t cutting it anymore. Periodic manual inspections are simply not enough.
Enter IoT sensors.
Imagine being able to monitor your structures 24/7. Automatically and remotely detecting gradual deterioration as it happens. Then being able to plan your repair teams and budgets accordingly.
Governments and private industry are pouring money into this tech right now. Every dollar they spend on structural IoT monitoring saves them $4-$5 in future repair/reconstruction costs.
Wiring and Soldering Importance In IoT Sensor Builds
Here’s something few people consider…
In order for IoT sensor networks to get installed on structures, someone has to wire up those sensors.
Wireless sensor nodes still require configuration, calibration, and securing. Whether you’re working with wireless or hardwired IoT sensors, soldering iron skills are important.
Need help choosing an affordable soldering station? The world of IoT sensors should make your soldering station comparison that much easier.
Reliable solder joints = happy customers, especially when your sensors are attached to bridges or inside concrete pylons.
Anyone serious about IoT sensor work should start by buying an iron soldering station and practicing those soldering skills.
Bad solder joints = bad data readings. Bad data means failed warnings. Failed warnings could lead to catastrophic failures in structural health monitoring.
Approximately 70% of the structural IoT sensor market is dominated by hardwired systems.
Wired connections require robust soldering and wiring work that will last for decades in harsh conditions. This means quality of workmanship matters when it comes to IoT sensors.
4x IoT Sensors Used For Structural Monitoring
Believe it or not… not all IoT sensors are created for the same purpose. There are many different kinds of sensors out there, each with its own strengths and ideal uses.
These are the four most common sensor types used for structural monitoring.
- Strain gauges. Strain gauges monitor how much a structure flexes under pressure. Commonly used on bridges and buildings.
- Accelerometers. Accelerometers measure vibrations and movement. These are frequently used on bridges as well.
- Temperature sensors. Hot and cold temperatures cause expansion and shrinkage in most materials. Temperature sensors can help detect unwanted shifts in structure.
- Fibre optic sensors. This is the Rolls-Royce of structural sensor types. Fibre optics can detect strain, temperature, and pressure along an entire length of fibre. Known for high accuracy, they’re becoming more popular on larger projects.
You’ll usually use a combination of sensors to cover all your bases.
How IoT Sensors Are Changing The Future
Alright, final question…
What does the future of IoT sensors and structural monitoring look like?
There are a few trends coming together to push the industry forward.
Artificial intelligence. IoT sensors generate massive amounts of data. AI software can take that data and translate it into predictive maintenance alerts and warnings. Essentially, teaching computers to predict structural failures before they happen.
Digital twin software. Want to test out how stable that bridge is? No need to physically push down on the structure and hope for the best.
Digital twin technology allows you to create a computer-generated model of the structure that you can stress-test at will.
Using real-time sensor data, countries like Norway are running digital twins on their entire bridge fleets.
Wireless technology. Wired sensor networks are the standard for anything that’s mission-critical.
But wireless IoT sensors are improving in range and reliability every year. Expect to see more wireless IoT sensor applications moving forward.
Closing Thoughts
IoT sensors are revolutionizing structural health monitoring. With so much of the world’s infrastructure reaching (and surpassing) their life expectancies, smart sensors aren’t just nice to have… They’re required to keep up with growing demand.
Let’s recap:
- IoT sensors allow for real-time structural monitoring
- Aging infrastructure can benefit greatly from continuous monitoring
- Wiring and soldering skills are important for IoT sensors
- There are many different sensor types used for building monitoring
- Technologies like AI and digital twins are making sensors even smarter
The structural monitoring market will continue to grow as cities expand and older structures need more upkeep. Whether it’s a bridge that’s 50+ years old or a brand new skyscraper, IoT sensors are making those structures safer for everyone.
And that’s a future worth being a part of.