Explain like I'm five · Emerging Tech

What is a Cyber-Physical System (CPS)?

Cyber-Physical Systems, told as a story about a booth where a screen twin and a real mechanical arm move in lockstep.

if it only moves on screen, isn't that just an animation?

Isn't that robot arm on screen just an animation?If it only moves on screen, isn't that just an animation?

the screen bends the arm, but the real arm just sits there unmoved

It's no good if the screen and the real machine move independently.The screen bends the arm, but the real arm just sits there unmoved.

CPS = a system where computers and a real machine move together via sensors and signalschange the screen and the machine moves — move the machine and the screen updates too

A CPS is a system where computers and a real machine move together, linked by sensors and signals. This booth shows the computer side as a digital twin on screen.Change the screen and the machine moves — move the machine and the screen updates too.

Read the statea sensor reads the real machine
Mirror on screenmirrors that state onto the twin
Calculate a commandthe computer decides what the machine does next
Act in realitythe command moves the real machine
THE CLOSED LOOP① a sensor reads the real machine's state② that state is mirrored on the screen twin③ a computer calculates the next command④ the command moves the real machine, back to ①the signal's endless circle is called a feedback loop

The signal circles from sensor to twin to computer to machine, then back to the sensor.The signal's endless circle is called a feedback loop.

with a fast signal, the twin and the machine move as onea late or hacked signal puts screen and machine out of stepin a CPS, the signal's speed and security matter as much as what's on screen

A late or hacked signal puts the screen twin and the real machine out of step.In a CPS, the signal's speed and security matter as much as what's on screen.

In one breath

CPS = a closed-loop system that mirrors a sensor-read real state into a computer (here, a digital-twin screen), then uses the computer's decision to move the real machine again.

A Cyber-Physical System links sensors, networks, and computing to physical machinery in real time, so that sensing, deciding, and controlling run as one continuous feedback loop. A digital twin is a virtual model that can mirror a machine's state in a CPS, though not every CPS has one. Real-world applications such as smart factories, autonomous driving, and smart farms run on this same CPS structure.

When grown-ups say it

Digital Twin
The screen twin that mirrors the real thing exactly. In this booth it plays the CPS's 'screen' role.
Feedback Loop
The signal's circle of sensing, deciding, and controlling. It lets a CPS check each result and keep correcting its next move.
Edge Computing
The small computer that decides right there on the spot. The same idea shows up at another booth in this hall. → the exhibit that just knows
Autonomous Driving
A prime real-world venue where this CPS structure runs. The same see-decide-act loop applies there too. → the demo-track car with an empty driver's seat
Smart Farm
Another real-world venue where this same CPS loop runs. Sensors measuring a greenhouse and machines tending it run on the same loop. → the greenhouse booth tended by sensors
Drone Security Threats
A similar case where a hacked control signal turns dangerous. It shows what happens when this loop's signal is attacked. → the drone held up by an invisible string
RPA
A robot that only repeats inside the screen. Unlike RPA, a CPS reaches beyond the screen to move real machines. → the robot worker that only repeats the rule
4th Industrial Revolution
The big wave made when many new technologies combine. The story that frames this whole exhibit hall. → the 4th Industrial Revolution
Next story
The One Current Running Through Every Booth →
Want another term as a picture book? Request →