1. What an elevator reports
Smart elevators cover monitoring, fault warnings, maintenance, and rescue when someone is trapped. The elevator black box, sensors, and cameras report over 4G or NB-IoT. Most shafts have no wired network, and 4G is what covers them. SimtoLink gives elevator makers and maintenance companies 4G and NB-IoT, a shared data pool, and an API into the elevator supervision platform.
2. Status, alarms, maintenance, and the cabin
A trapped-passenger alarm, a maintenance record, and a cabin video do not ask the same thing of the link. The alarm has to leave immediately. A parts list can wait.
Running status
The black box sends running status, load, floor, and door state over 4G, for live monitoring and a check when something looks wrong.
Faults and trapped passengers
Fault sensors and trapped-passenger detection send the alarm over 4G as it happens, for a link to the 96333 hotline and an emergency response.
Maintenance and inspection
Work orders and inspection records go up over 4G, for maintenance when it is due, an annual-inspection reminder, and parts tracking.
Cabin video and the intercom
Cabin cameras and intercoms report over 4G, so someone can reassure the passengers from a desk and the recording is kept.
3. What the elevator link has to do
- Running status: Cabin speed, door movement, and fault codes have to be collected as they happen, for a remote warning and predictive maintenance.
- Someone trapped: A trapped-elevator event raises an alarm and notifies maintenance, so the rescue starts sooner and passengers stay safe.
- The annual inspection: Running data is kept for the market supervision authority's annual inspection, and it can be sent to the supervision platform.
- The cabin screen: Advertising and information screens in the cabin need a stable network for ads and building notices.
- Wear before it fails: Vibration and noise readings are analyzed so worn parts show up early, and maintenance happens before a breakdown.
4. Which SIM fits which elevator device
A controller, an intercom, and a cabin screen do not need the same radio. The table is a starting point:
| Use | Recommended network | Why it fits |
|---|---|---|
| Elevator controllers and IoT boxes | 4G | Running parameters, fault warnings, remote maintenance |
| Trapped-passenger and intercom systems | 4G | A two-way call, emergency rescue, location |
| Cabin information and advertising screens | 4G/NB-IoT | Content push, operations, low power |
5. How much data an elevator uses
One device typically uses about 20–100MB a month, and video is most of it. Pool SIMs by device type, keep 20%–30% spare, and use VPDN to keep the link private.
6. Security and compliance
Elevator safety and passenger data are in scope. Treat this as high security. A VPDN private network, TLS, and an IP allowlist are required. SimtoLink provides VPDN, a private APN, and completes real-name registration for the SIMs.
7. What SimtoLink would deploy
For elevator control, video, and trapped-passenger alarms, use a 4G IoT SIM. For sensors that only report vibration or temperature and humidity, use NB-IoT. A trapped passenger has to be reported as it happens, and video uses more data. SimtoLink plans for 99.9% network availability, a shared data pool, and an API into the elevator supervision platform.
8. Putting elevators on the network
Rollout:
Size the plan to the device, and check coverage in the building. Set VPDN and the APN, plus an IP allowlist, and alert at 80% of the data allowance. SimtoLink stays with the project from the first shaft through the wider fleet. Contact us for a plan built around those elevators.