Leonardo plans to add ELSAG SignalTrace to its license plate reader camera systems, giving them the ability to collect device identifiers as well as plate data. The upgrade moves the company’s automatic plate readers beyond counting and tracking vehicles and toward linking those vehicles to the electronic signals they carry.
That is why the system is drawing attention now. ALPR cameras already record plates as cars pass, but SignalTrace is designed to sweep up identifiers from mobile phones, Bluetooth wearables, vehicle hotspots, infotainment systems and other connected devices moving through the camera’s field of view. Leonardo says the system can bridge license plate recognition data with device identifiers and, when several devices travel consistently with one vehicle, tie them to a plate and a time-stamped location.
The product sheet describes those identifiers as coming from phones, Bluetooth headsets, fitness trackers, laptops, tablets, tire pressure sensors, RFID tags in key cards and pet microchips. In that setup, the camera is no longer just asking which car passed. It is building a record of what signals passed with it, and storing the device and correlation data in the EOC Enterprise Operations Center for later queries and analysis.
Leonardo says that correlation can give investigators another layer of actionable intelligence even if a suspect changes or removes a plate. The company already sells ALPR cameras and communications equipment to law enforcement, border security and other government agencies, and its US arm has contracts with US Special Operations Command and the General Services Administration. Leonardo S.p.A. is headquartered in Rome, Italy.
The friction is hard to miss. The technology is presented as a tool for investigations, but it also sweeps up data from every car that passes, not just suspected criminals. ALPR systems have long been limited to tracking vehicles rather than occupants, and this shift pushes them closer to people tracking at a moment when camera surveillance is already widespread in the United States.
What remains unanswered is how much of that device and correlation data will be kept, and who will be able to search it. Leonardo has described the capability, not the rules around it, and those details will shape whether SignalTrace becomes a niche investigative tool or a much broader surveillance layer built on top of an ordinary license plate reader camera.
