We are all living in a century that technology leads first and using machine to support our lives, from agriculture to industry, to all terms and fields. We use machines to increase productivity, reduce time for work, help us with what can’t be undone by human strength. 
But machine has durability, also things in over the world that were built by our hands have durability, too. 
In many countries, there are so many accidents that relate to the durability, like broken, cracks, or overload capicity... It happens in an elevator, on the ground, on a bridge, in structures which were rusted by the time...
I’m sure that we dont want to risk our lives on things that could be broken. Think about oneday you are in an elevator is falling down, all the system was broken because of one detail which was rusted and hard to realise by human senses. You’re being imprison in 4-walls, that was a horrible thing to people. I saw it in many films but it isn’t a film-imaginary, it’s realistic that could be happen to anybody. 
Because of that, we need to maintain the elevator over the time. And maintenance needs people. And people need money. We have to pay for them. But there is a trouble that is WHEN? 
When we need to maintain? 
If we maintain the elevator each day, yeah, wonderful! We’ll be safe. But that’ll be a big trouble with money. 
How do we know exactly when the elevator, or more specific, things need to be maintain? 
We have solution for that problem: USING IoT TO MONITOR AND TRACK.

First, we’ll equip sensors on objects to receive signals. Signals are collected will be processed in GR Peach Board.

After processed, GR Peach Board produces information about stress, cracks, deformation,... and will be send to Internet through a wireless module.

Through Internet, we can access that information to know bridge’s status. Then we can offer solution if the bridge had problem, like send a team of engineer to repair.

Besides, we want to make that information is a open-information on Internet, that anybody can access. That information includes: Bridge’s name, Status, Max Capacity,...

When a car go to that bridge, you can access bridge’s information through Internet. If there’s any danger, system will alarm your car before you’re passing by.

We focus on using Internet of Things. That main element is GR Peach Board.

+ Sensors technology (strain gauge, load-cell, accelerometer, vibration sensor,....)

+ Wireless technology

This is our simple version about IoT for the bridge - Alerting System when we have a shockwave that affects to the bridge. We also have some ideas about expanding our project but we had limited knodledge about hardware, software and time to research some technologies...
About this system have three main parts:
- Sensors: collect data from environment
- Monitor: show data information for engineer and guide/navigate vehicles
- Alerting Devices: block way and alert when we have problem.
About sensors, beside vibration sensor we attached on the bridge, we can add more sensors to track bridge's status.
About monitor, we can change TextLCD to TouchLCD to be more efficient in communication between human and machine.
About Alerting Devices, we can build a blocking line the way using a servo motor,...
And more over, those information collected from sensors can be process and upload to a cloud server using GR-Peach Board. 
We can do it if we have more time to research those technologies. But we run out of time.