What Is Fleet Telematics?

Fleet telematics is the use of location, vehicle data and mobile communications to track and manage a group of vehicles. The word joins telecommunications and informatics: data is collected on the vehicle and sent over a cellular network to software in the office or the cloud.

Each vehicle carries a telematics device, sometimes called a tracker or telematics control box. It contains a GNSS receiver, a cellular modem, an accelerometer and a connection to the vehicle’s own data network. It reports position, speed and engine data every few seconds to minutes, and sends events such as harsh braking or a fault code as they happen. The fleet software turns that stream into maps, alerts, reports and driver scores.

An in-cab computer or mobile data terminal often sits alongside, showing the driver their jobs, routes and messages. Together they turn a fleet from a set of separate vehicles into something the office can see and coordinate in real time.

Most systems start with location and add vehicle and driver data. The table shows the main data sources and how each reaches the telematics device.

Heavy vehicles add the most data, because J1939 exposes far more than the OBD-II port on a car. Both run over CAN, the network that already links the vehicle’s control modules, so the telematics device listens rather than adding sensors.

The same data supports several jobs across the business:

The fastest-growing part of fleet telematics is video. Road-facing and driver-facing cameras record continuously and save clips around an event, such as a harsh brake, so an incident can be reviewed. With AI on the vehicle, the system can also detect phone use, tailgating, lane departure and fatigue in real time, and warn the driver before anything happens.

Running that analysis on board avoids streaming hours of video over cellular. It needs a computer with several camera inputs, enough AI performance for the models, storage for the footage and a reliable cellular link; our guide to integrating 4G, LTE and 5G connectivity covers the modem side.

Telematics data has uses beyond operations. In the UK and EU, drivers of most goods vehicles over 3.5 tonnes and of many buses must record their driving hours on a tachograph, and newer smart tachographs can be downloaded remotely through the telematics link instead of by plugging in at the depot. The same records support working time checks and operator licence audits.

Insurers increasingly offer lower premiums to fleets that can show driving data and camera evidence, because both reduce disputed claims. Collision footage, in particular, often settles who was at fault within hours.

Because the data describes where people are and how they drive, it is personal data under UK and EU GDPR. Fleets usually set out what is collected and why in a driver policy, limit access to the people who need it, and switch off private-use tracking where vehicles go home with their drivers.

Simple tracking runs on a small sealed telematics box. Fleets that combine telematics with cameras, dispatch and vehicle data often consolidate onto one in-vehicle computer instead, with CAN, GNSS, LTE and camera inputs on the same system. Our in-vehicle computers cover that role, with ignition control and E-mark approval on many models, and our vehicle mount computers combine the driver’s screen with the same interfaces. Emergency fleets often add 5G, so live video and patient data can reach a hospital or control room on the move.

We supply in-vehicle computers for telematics and video systems with the operating system, CAN, GNSS and cellular set up as standard, and test each one before it ships. Tell us your vehicles, cameras and software and we will specify the build.