IoT and Elevators

Your elevator already knows more than you think. Dozens of sensors fire data every second — but without IoT, that data never leaves the shaft.

The Internet of Things (IoT) connects equipment and devices to the internet. It delivers real-time data to manufacturers, maintenance companies, and building owners. Elevators benefit significantly from IoT integration, gaining remote visibility and predictive intelligence that were impossible just a decade ago.

What are IoT Devices?

IoT devices are semiconductor-based electronics that connect to the internet. They send sensor-collected data to cloud servers and receive commands to trigger actuators. These devices use protocols like MQTT or AMQP to exchange messages with servers over the internet.

IoT devices fall into four categories:

• The Internet Gateway
• The Controller or the Hub
• The Sensor Devices
• The Actuators

Each category plays a distinct role in the data pipeline — from capturing raw measurements to executing physical actions. Let's break them down.

Internet Gateway

The internet gateway connects the local IoT network to the internet. It supports wired Ethernet, WiFi, mobile networks (3G, 4G, 5G), LoRaWAN, and NB-IoT. The gateway collects data from sensors, controllers, or hubs and forwards it to cloud servers. It also receives server commands and relays them to the controller for action.

Inside the gateway sit two semiconductor components: a network processor and a microcontroller. The network processor handles internet connectivity and data packet transmission. The microcontroller manages data flow between the network processor, sensors, and actuators. It also applies logic to route data based on input conditions.

The Controller / Hub

The controller (or hub) sits between the gateway, sensors, and actuators. It uses wired or wireless connections to transmit and receive data from both sides. The hub can also run local logic — triggering actuators based on sensor input without waiting for a server response.

Sensor Devices

Sensors detect physical events and transmit that data digitally to the controller. Common types include temperature sensors, acceleration sensors, tilt sensors, and optical sensors for detecting obstruction or presence. Sensors connect to the hub or internet gateway through wired or wireless links.

The Actuators

Actuators translate digital commands into physical action. Switchgear like relays and contactors serve as actuators to start motors and electromagnetic solenoids. Actuators connect to the hub or internet gateway through wired or wireless links.

Together, these four components form a closed loop: sensors capture data, gateways transmit it, servers analyse it, and actuators act on the result. This loop becomes especially powerful inside an elevator.

How Does IoT and Elevator Systems Come Together?

Elevators already contain a dense array of sensors and actuators. Position sensors, brake sensors, switchgear position sensors, door obstruction sensors, and safety monitoring relays all generate data continuously. On the actuator side, switchgear contactors, variable frequency drives, and door motors execute commands. Additional sensors — such as acceleration and temperature sensors — can be added to capture deeper detail about the equipment, its components, or the operating environment.

During a breakdown, this sensor data reveals the fault before a technician even arrives on site. Maintenance teams can diagnose the issue remotely and dispatch the right technician, with the right skills and the right tools, to resolve the problem faster.

Beyond breakdowns, IoT sensors track wear and tear on individual parts over time. Owners and maintenance companies can repair or replace components well before they cause a failure — eliminating unplanned downtime.

Acceleration sensors monitor ride quality in real time. Jerks, vibrations, or lateral movement flag potential problems early, letting the maintenance company investigate before passengers notice a difference.

Actuators open up remote control possibilities too. For example, the system can cut main power to an elevator at a scheduled time — but only after confirming no passengers are inside and the car is stationary at a floor. This restricts elevator use during specific hours. Emergency signs can also be activated remotely over the internet. These features can be customised to suit each building's operational needs.

Remote Sensing and Control

IoT creates a two-way data stream between the elevator and the cloud. In practice, remote sensing dominates: most elevator IoT deployments prioritise monitoring over remote control, because safety regulations limit what can be actuated without on-site personnel.

This data stream serves two purposes. First, it enables immediate fault diagnosis during breakdowns, pinpointing worn or failing parts. Second, aggregated data across large elevator fleets reveals patterns over time — helping manufacturers and maintenance providers improve reliability at scale.

Conclusion

Elevators and IoT form a natural partnership. Elevators already house dozens of sensors and actuators; IoT simply gives that data a path to the cloud and back. The result is faster fault diagnosis, predictive maintenance that prevents downtime, and remote control capabilities tailored to each building.

As IoT hardware costs drop and connectivity options expand, smart elevator systems will shift from a competitive advantage to an industry standard. Building owners and maintenance companies that adopt IoT today position themselves ahead of that curve — reducing costs, improving safety, and delivering a better ride for every passenger.