# US 10,504,363 B2 · Vehicle detection > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,504,363 B2 - Document ID: US10504363B2 - Status: Granted - Kind: B2 - Application number: 16/123,925 - Filed: 2018-09-06 - Published: 2019-01-17 - Granted: 2019-12-10 - Earliest claimed: 2015-03-06 - Assignees: Q-Free ASA - Applicants: Q-Free ASA - Inventors: Brage Blekken; Anders Ivar Hagen; Ola Martin Lykkja - Web page: https://patentgrep.com/patent/US10504363B2 ## CPC - G08G 1/0133: {for classifying traffic situation} - G01S 13/04: Systems determining presence of a target (based on relative movement of target G01S13/56) - G01S 13/87: Combinations of radar systems, e.g. primary radar and secondary radar - G01S 13/91: for traffic control (G01S13/93 takes precedence) - G08G 1/015: with provision for distinguishing between two or more types of vehicles, e.g. between motor-cars and cycles - G08G 1/02: using treadles built into the road (pads or other sensitive devices responsive to passage of vehicles E01F11/00) - G08G 1/056: with provision for distinguishing direction of travel - G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93}) - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ## Abstract A vehicle detection and classification system which comprises a plurality of proximity sensors is distributed in a fixed spatial array relative to a road such that a distance of each sensor to the nearest adjacent sensor is less than a minimum horizontal dimension of a vehicle to be detected. The array has a maximum dimension greater than the minimum horizontal dimension of a vehicle to be detected. Each of the sensors is configured to determine presence or absence of a vehicle and to communicate data regarding said presence determination to a data processing system, wherein the data processing system is configured to use data from a plurality of the sensors to detect and classify a vehicle on the road based on at least one dimension of the vehicle. ## Claims ### Claim 1 A vehicle detection and classification system comprising a plurality of ultra-wideband proximity sensors distributed in a fixed spatial array relative to a road, wherein each sensor is spaced from a nearest adjacent sensor by a respective distance less than a minimum horizontal dimension of a vehicle to be detected but the array has a maximum dimension greater than said minimum horizontal dimension of a vehicle to be detected, each of said sensors being configured to determine presence or absence of a vehicle and to communicate data regarding said presence determination to a data processing system, said data processing system being configured to use data from a plurality of said sensors to detect and classify a vehicle on said road based on at least one dimension of said vehicle, wherein at least of part the array of sensors is disposed beneath or flush with a surface of the road. ### Claim 2 (depends on 1) The vehicle detection and classification system as claimed in claim 1 wherein the array of sensors is provided in one or more planes parallel to a surface of the road. ### Claim 3 (depends on 1) The vehicle detection and classification system as claimed in claim 1 wherein at least some of the sensors are configured to communicate said data to said data processing system via at least some other sensors. ### Claim 4 (depends on 1) The vehicle detection and classification system as claimed in claim 1 wherein the ultra-wideband sensors can communicate with each other using ultra-wideband signals. ### Claim 5 (depends on 1) The vehicle detection and classification system as claimed in claim 1 wherein said data processing system is arranged to determine one or more of: a length; a width; a speed; or an angle of travel of the vehicle. ### Claim 6 (depends on 1) The vehicle detection and classification system as claimed in claim 1 arranged to determine a distance to the vehicle. ### Claim 7 (depends on 1) The vehicle detection and classification system as claimed in claim 1 arranged to detect axle usage. ### Claim 8 (depends on 1) The vehicle detection and classification system as claimed in claim 1 wherein the data processing system is arranged to determine a number of axles present on the vehicle. ### Claim 9 (depends on 1) The vehicle detection and classification system as claimed in claim 1 wherein at least part of said data processing system is distributed across the array of sensors. ### Claim 10 (depends on 1) The vehicle detection and classification system as claimed in claim 1 wherein at least part of the array of sensors is disposed above a surface of the road such that vehicles pass beneath the sensors. ### Claim 11 A vehicle sensing system comprising a plurality of ultra-wideband proximity sensors distributed in a fixed spatial array relative to a road, wherein each sensor is spaced from a nearest adjacent sensor by a respective distance less than a minimum horizontal dimension of a vehicle to be detected but the maximum dimension of the array is greater than said minimum horizontal dimension of a vehicle to be detected, each of said sensors being configured to determine presence or absence of a vehicle and in use to communicate data regarding said presence determination to a data processing system, said data being such as to allow said data processing system to use data from a plurality of said sensors to detect and classify a vehicle on said road based on at least one dimension of said vehicle, wherein at least part of the array of sensors is disposed beneath or flush with a surface of the road. ### Claim 12 (depends on 11) The vehicle sensing system as claimed in claim 11 wherein the array of sensors is provided in one or more planes parallel to a surface of the road. ### Claim 13 (depends on 11) The vehicle sensing system as claimed in claim 11 wherein at least some of the sensors are configured to communicate said data to said data processing system via at least some other sensors. ### Claim 14 (depends on 11) The vehicle sensing system as claimed in claim 11 wherein the ultra-wideband sensors can communicate with each other using ultra-wideband signals. ### Claim 15 (depends on 11) The vehicle sensing system as claimed in claim 11 wherein said data processing system is arranged to determine one or more of: a length; a width; a speed; or an angle of travel of the vehicle. ### Claim 16 (depends on 11) The vehicle sensing system as claimed in claim 11 arranged to determine a distance to the vehicle. ### Claim 17 (depends on 11) The vehicle sensing system as claimed in claim 11 arranged to detect axle usage. ### Claim 18 (depends on 11) The vehicle sensing system as claimed in claim 11 wherein the data processing system is arranged to determine a number of axles present on the vehicle. ### Claim 19 (depends on 11) The vehicle sensing system as claimed in claim 11 wherein at least part of said data processing system is distributed across the array of sensors. ### Claim 20 (depends on 11) The vehicle sensing system as claimed in claim 11 wherein at least part of the array of sensors is disposed above a surface of the road such that vehicles pass beneath the sensor.