Roper Technologies. has been granted a patent for a vehicle tracking system that utilizes smartphones as active transponders. The system employs existing RF transceivers to transmit identification messages, enabling roadside equipment to detect and locate vehicles for applications like automated tolling and access control. GlobalData’s report on Roper Technologies gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Roper Technologies, was a key innovation area identified from patents. Roper Technologies's grant share as of July 2024 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
Vehicle position tracking using smartphones as transponders
The patent US12069552B2 outlines a system designed for accurately locating a user device, primarily through the use of signal strength indicators (RSSI) and a network of signal receivers. The system comprises a server and an application that operates on the user device, which periodically transmits messages containing identification data. These messages are received by a first signal receiver that calculates the RSSI values and relays this information to the server. The server then aggregates data from multiple signal receivers to determine the user device's location relative to a specific lane of travel, utilizing the RSSI values from the received messages.
Further enhancements to the system include the identification of messages that exceed a predetermined RSSI threshold, allowing the server to pinpoint the user device's location based on the signal receivers that report the highest number of qualifying messages. The patent also describes the use of multiple signal receivers, each with distinct antenna beam patterns that may overlap, facilitating precise location determination across roadways. Additionally, the application can interact with transceivers linked to toll payment systems, further refining the location data based on RSSI values. Overall, the system aims to provide a reliable method for locating user devices in transit, leveraging advanced signal processing techniques.
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