Technology / IoT Monitoring
GSM / WiFi Monitoring — Real-Time Lift Intelligence
Su-vastika’s patented Electronic Control Unit (ECU) system connects every installed ERD to a cloud monitoring platform. Battery health, power transition events, fault logs, and lift movement data — all visible in real time, from anywhere.
The ECU: What’s Inside the Lift Car
Every Su-vastika ERD installation includes an Electronic Control Unit (ECU) mounted inside the lift car — visible to passengers. This small display unit serves two purposes: informing passengers about the power status of the lift, and sending continuous telemetry data to the cloud monitoring platform.
The ECU display shows whether the lift is running on grid power or ERD battery backup. During a power transition, it makes an audio announcement (in the configured local language) informing passengers that the lift has switched to backup power and will continue running normally. A low battery indicator and announcement warns when backup time is limited.
For building operators, the ECU’s telemetry capability is the more significant feature. It continuously reports the ERD’s operational status, battery state of health, grid quality, and fault events to a centralised monitoring dashboard.
Display Panel
Shows grid vs battery status, battery percentage, backup runtime estimate, and fault codes. Visible to lift users at all times.
Audio Announcement
Announces power transitions and battery-low warnings in configurable language. Prevents passenger panic during power cuts.
GSM / WiFi Modem
Dual-mode connectivity sends telemetry to cloud platform over cellular or building WiFi. Failover between both if one is unavailable.
Alert System
SMS and app push notifications to the building manager for fault events, battery low, power failure longer than threshold, and scheduled maintenance reminders.
What the Cloud Platform Monitors
The IoT monitoring platform aggregates data from all connected ERD units — whether a building has one lift or a commercial complex has twenty. Each unit reports on a continuous basis:
| Data Point | Frequency | Purpose |
|---|---|---|
| Battery voltage (per cell / string) | Every 30 sec | Detect failing cells early; track degradation curve |
| Battery state of charge (%) | Every 30 sec | Backup runtime estimate; low battery warning trigger |
| Grid input voltage & frequency | Every 30 sec | Power quality monitoring; detect grid anomalies |
| Power transition events (grid ↔ battery) | On event | Audit trail; count of power failures per month |
| IGBT temperature | Every 60 sec | Thermal management; overtemperature fault prediction |
| Output current & power (kW) | Every 30 sec | Motor load monitoring; detect abnormal current draw |
| Fault codes & error events | On event | Automatic complaint logging; technician dispatch trigger |
| Battery charge cycles (count) | Daily | Battery health tracking; warranty verification |
Automatic Complaint Logging
One of the most operationally valuable features of the IoT system is automatic complaint logging. When a fault event occurs — a power failure, battery low condition, IGBT temperature alarm, or output voltage fault — the system automatically:
- Logs the fault event with timestamp, location, and fault code
- Sends an SMS and push notification to the building manager
- Creates a service ticket in the centralised service management system
- Dispatches a notification to the nearest authorised service technician
- Tracks the ticket through resolution and closes it when the fault is cleared
For large housing societies and commercial buildings with multiple lifts, this eliminates the manual process of receiving, logging, and assigning fault reports. The mean time to repair (MTTR) drops significantly when technicians are dispatched automatically with full fault context, rather than responding to resident complaints with no diagnostic data.
Digital Warranty and Service Records
Every installation is registered on the platform at commissioning time. The system tracks:
- Installation date and commissioning data
- Battery manufacture date and warranty expiry
- Service visit records and parts replaced
- Cumulative charge cycles vs rated cycle life
- Firmware version history and remote update log
Warranty claims are validated automatically against the platform’s operational data — eliminating disputes about whether the battery was properly maintained or whether the fault was caused by external factors. Building owners have a complete, timestamped record of their ERD’s operational history.
The Patent and Technical Basis
Su-vastika’s IoT monitoring system is covered by patents that specifically address the integration of real-time monitoring with the ERD’s power management controller. The innovation is not just the connectivity — it is the tight coupling between the IGBT controller’s internal state and the telemetry engine.
The system reports at the controller’s native resolution — not a simplified summary. This means the platform captures sub-second events (like a grid sag before a full failure) that would be invisible to a conventional monitoring system that polls sensors once per minute.
For full technical specifications of the IoT monitoring system, see the Su-vastika ERD product page or the patents and certifications page.
Size Your ERD First
IoT monitoring is included in every Su-vastika ERD installation. Start by calculating the right KVA rating for your lift.