The Sentinel-Locate modules
Pick the modules your fleet needs
Live tracking, passenger check-in, a client portal, reports and export, fuel tracking, notifications – modular, priced by headcount. You pay only for what you use.
Six modules, one platform
Sentinel-Locate is built from six separately priceable modules – switch on only what your fleet needs.
Live tracking
The bus phone's GPS pings every ~10 seconds; a live MapLibre + OpenStreetMap map, automatic stop matching (50 m) and ETA – with no Google Maps licence.
Passenger check-in (NFC/RFID)
Card boardings on the driver's phone (Web NFC) or one cheap HID RFID reader. Offline-first: scans and GPS wait in a local queue, then sync without duplicates – no boarding is ever lost.
Client portal
Each client company logs into its own isolated portal and sees strictly its own boardings and headcount reports, with CSV/XLSX export. Airtight multi-tenant isolation.
Reports and export
Operator and client reports: headcount per route and day, route performance, billing-base data – in XLSX and CSV.
Fuel and mileage
Per-vehicle fuel profile and fill-ups, mileage from GPS and manual odometer, fuel cost and consumption tracking.
Notifications
Delay and incident emails to the client, scheduled report delivery, and automatic GPS-feed-outage detection that alerts if a vehicle stops reporting.
The modules in detail
Each module works on its own and can be priced separately. Expand each one to see what it does, its concrete benefit, and who it is for.
Live tracking
The bus phone's GPS reports its position every ~10 seconds. A live MapLibre + OpenStreetMap map, automatic stop matching (50 m) and route/ETA – the admin view lives at /admin/terkep.
The operator and the client see in real time where the routes are, and the system flags delays immediately – without expensive onboard telematics.
For every operator that needs to know exactly where its fleet is and whether it is on schedule.
Passenger check-in
The driver-phone PWA (the /sofor view) reads the passenger card via Web NFC (NDEF) or a HID RFID reader. Offline-first: scans and GPS wait in an IndexedDB queue, then upload with an idempotent batch sync. Cards are issued from /admin/kartyairo.
No boarding is ever lost, even during prolonged loss of signal – the duplicate-free sync guarantees an accurate headcount.
For employee and shift transport, where the boarding headcount is the basis of billing and capacity planning.
Client portal
Each client company logs into its own tenant-isolated portal (the /portal view) and sees strictly its own boardings, headcount reports and export. Isolation is enforced at query level, not by UI filtering.
The client accesses its own data independently and securely – no back-and-forth emails, no manual report assembly.
For large clients (e.g. retail chains) that want a transparent headcount picture across multiple sites or shifts.
Reports and export
Operator and client reports: headcount per route and day, route performance, billing-base data – with XLSX and CSV export.
Monthly billing and capacity planning are done in minutes, from verifiable data – no estimates, no disputes.
For the teams responsible for billing and fleet planning, on both sides.
Fuel and mileage
Per-vehicle fuel profile and fill-ups, mileage from both GPS and manual odometer readings, plus fuel cost and consumption tracking.
The real fuel cost and consumption per vehicle become clear – and the model can be extended to freight and cost tracking.
For fleet owners who also want to keep their vehicles' running costs under control.
Notifications
Delay and incident emails to the client, scheduled client report delivery, and automatic GPS-feed-outage detection that alerts if a vehicle stops reporting.
The client is informed proactively, and the operator notices immediately if a phone dies or a connection drops.
For any operator that wants to automate reliability monitoring and client communication.
How we onboard a new operator
In four steps, hardware-free, we get the platform into production.
Demo and assessment
We show the platform live and map out your routes, fleet and clients.
Module selection
We choose the modules you need: tracking, check-in, portal, reports, fuel, notifications.
Hardware-free rollout
We install the app on the driver phones and issue the cards. It can also run in parallel with an existing system.
Go-live and support
Production starts, clients get portal access, and we provide ongoing support.
Packages and modules
Pricing is modular and per-headcount (per person / month): you pay only for the modules used and the actual boardings. Every package is based on a tailored quote.
Tracking
Live tracking and map with the driver's phone.
- GPS tracking on the driver's phone
- Live map (MapLibre + OpenStreetMap)
- Stop matching and delay alerts
Tracking + Check-in
Tracking plus name-free passenger check-in with headcount reports.
- Everything in Tracking
- NFC/RFID passenger check-in, offline-first
- Name-free, PII-free headcount data
- Weekly and monthly headcount reports
Full platform
With a client portal, fuel module, notifications and export.
- Everything in Tracking + Check-in
- Tenant-isolated client portal per company
- Fuel tracking and mileage-based accounting
- Notifications + CSV/XLSX export and billing base
Request a tailored quote for your fleet
Get in touch and we will put together a module package tailored to your routes and headcount.
