# US 12,766,892 B2 · Positioning system and positioning method of tire pressure sensor and vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,766,892 B2 - Document ID: US12766892B2 - Status: Granted - Kind: B2 - Application number: 18/807,046 - Filed: 2024-08-16 - Published: 2025-07-31 - Granted: 2026-10-20 - Earliest claimed: 2024-01-31 - Assignees: Foxconn Interconnect Technology Limited - Applicants: Foxconn Interconnect Technology Limited - Inventors: Tang-Yun Chang; An-Yao Lee; Yun-Rong Song - Web page: https://patentgrep.com/patent/US12766892B2 ## CPC - B60C 23/0416: {allocating a corresponding wheel position on vehicle, e.g. front/left or rear/right} - B60C 23/0433: {Radio signals} - B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES ## Abstract A positioning system and a positioning method of tire pressure sensor and a vehicle are provided. The vehicle includes a plurality of wheels, each wheel is provided with a tire pressure sensor. The positioning system includes a plurality of positioning devices arranged in the vehicle, each positioning device is configured to receive a plurality of Bluetooth signals from the tire pressure sensors, and obtain a set of positioning data according to the Bluetooth signals; and a receiving device configured to determine a matching relationship between the tire pressure sensors and the wheels according to preset positions of the positioning devices and the sets of positioning data, to locate the tire pressure sensors on the vehicle. ## Claims ### Claim 1 A positioning system of tire pressure sensor applied in a vehicle, the vehicle comprising a plurality of wheels, each of the plurality of wheels provided with a tire pressure sensor, the positioning system comprising: a plurality of positioning devices arranged in the vehicle, each of the plurality of positioning devices configured to receive a plurality of Bluetooth signals from the plurality of tire pressure sensors, and obtain a set of positioning data according to the plurality of Bluetooth signals; and a receiving device configured to determine a matching relationship between the plurality of tire pressure sensors and the plurality of wheels according to preset positions of the plurality of positioning devices and the plurality of sets of positioning data, to locate the plurality of tire pressure sensors on the vehicle; wherein each of the plurality of positioning devices comprises a radio frequency (RF) modulator and a positioning controller, the RF modulator is configured to convert frequencies of the plurality of Bluetooth signals from high frequencies to base frequencies; the positioning controller is configured to parse a plurality of signal field strength indications of the plurality of Bluetooth signals of the base frequencies; the positioning controller is further configured to determine a plurality of calculated distances between the plurality of positioning devices and the plurality of tire pressure sensors corresponding to a plurality of strengths of the plurality of signal field strength indications according to the plurality of strengths; and the positioning controller is further configured to determine a plurality of correspondences between the plurality of calculated distances and a plurality of identity documents carried by the plurality of Bluetooth signals, and obtain the set of positioning data according to the plurality of correspondences; wherein the receiving device is further configured to: determine a set of matching relationship according to one of the plurality of correspondences between one of the preset positions of the plurality of positioning devices and one of the plurality of sets of positioning data, the one of plurality of correspondences is a relationship that one of the plurality of identity documents corresponding to each of the plurality of calculated distances is located on one of the plurality of wheels; count a plurality of sets of matching relationship based on the plurality of positioning devices; and in a counting result, determine one of the plurality of sets of matching relationship with the highest probability to be the matching relationship between the plurality of tire pressure sensors and the plurality of wheels. ### Claim 2 (depends on 1) The positioning system of tire pressure sensor according to claim 1, wherein the receiving device is further configured to send the matching relationship between the plurality of tire pressure sensors and the plurality of wheels to a display unit of the vehicle. ### Claim 3 (depends on 1) The positioning system of tire pressure sensor according to claim 1, wherein the plurality of positioning devices is respectively arranged in structural areas of the vehicle adjacent to the plurality of wheels. ### Claim 4 A vehicle comprising: a plurality of wheels, each of the plurality of wheels is provided with a tire pressure sensor; and a positioning system of tire pressure sensor comprising: a plurality of positioning devices arranged in the vehicle, each of the plurality of positioning devices configured to receive a plurality of Bluetooth signals from the plurality of tire pressure sensors, and obtain a set of positioning data according to the plurality of Bluetooth signals; and a receiving device configured to determine a matching relationship between the plurality of tire pressure sensors and the plurality of wheels according to preset positions of the plurality of positioning devices and the plurality of sets of positioning data, to locate the plurality of tire pressure sensors on the vehicle; wherein each of the plurality of positioning devices comprises a radio frequency (RF) modulator and a positioning controller, the RF modulator is configured to convert frequencies of the plurality of Bluetooth signals from high frequencies to base frequencies; the positioning controller is configured to parse a plurality of signal field strength indications of the plurality of Bluetooth signals of the base frequencies; the positioning controller is further configured to determine a plurality of calculated distances between the plurality of positioning devices and the plurality of tire pressure sensors corresponding to a plurality of strengths of the plurality of signal field strength indications according to the plurality of strengths; and the positioning controller is further configured to determine a plurality of correspondences between the plurality of calculated distances and a plurality of identity documents carried by the plurality of Bluetooth signals, and obtain the set of positioning data according to the plurality of correspondences; wherein the receiving device is further configured to: determine a set of matching relationship according to one of the plurality of correspondences between one of the preset positions of the plurality of positioning devices and one of the plurality of sets of positioning data, the one of plurality of correspondences is a relationship that one of the plurality of identity documents corresponding to each of the plurality of calculated distances is located on one of the plurality of wheels; count a plurality of sets of matching relationship based on the plurality of positioning devices; in a counting result, determine one of the plurality of sets of matching relationship with the highest probability to be the matching relationship between the plurality of tire pressure sensors and the plurality of wheels. ### Claim 5 (depends on 4) The vehicle according to claim 4, wherein the receiving device is further configured to send the matching relationship between the plurality of tire pressure sensors and the plurality of wheels to a display unit of the vehicle. ### Claim 6 (depends on 4) The vehicle according to claim 4, wherein the plurality of positioning devices is respectively arranged in structural areas of the vehicle adjacent to the plurality of wheels. ### Claim 7 A positioning method of tire pressure sensor applied in a positioning system of tire pressure sensor applied in a vehicle, the vehicle comprising a plurality of wheels, each of the plurality of wheels provided with a tire pressure sensor, the positioning system comprising a plurality of positioning devices and a receiving device, the positioning method comprising: receiving a plurality of Bluetooth signals from the plurality of tire pressure sensors, and obtaining a set of positioning data according to the plurality of Bluetooth signals by each of the plurality of positioning devices; and determining a matching relationship between the plurality of tire pressure sensors and the plurality of wheels according to preset positions of the plurality of positioning devices and the plurality of sets of positioning data, to locate the plurality of tire pressure sensors on the vehicle by the receiving device; wherein each of the plurality of positioning devices comprises a radio frequency (RF) modulator and a positioning controller, receiving a plurality of Bluetooth signals from the plurality of tire pressure sensors, and obtaining a set of positioning data according to the plurality of Bluetooth signals by each of the plurality of positioning devices comprises: converting frequencies of the plurality of Bluetooth signals from high frequencies to base frequencies by the RF modulator; parsing a plurality of signal field strength indications of the plurality of Bluetooth signals of the base frequencies by the positioning controller; determining a plurality of calculated distances between the plurality of positioning devices and the plurality of tire pressure sensors corresponding to a plurality of strengths of the plurality of signal field strength indications according to the plurality of strengths by the positioning controller; and determining a plurality of correspondences between the plurality of calculated distances and a plurality of identity documents carried by the plurality of Bluetooth signals, and obtaining the set of positioning data according to the plurality of correspondences by the positioning controller; wherein determining the matching relationship between the plurality of tire pressure sensors and the plurality of wheels according to the preset positions of the plurality of positioning devices and the plurality of sets of positioning data by the receiving device comprises: determining a set of matching relationship according to one of the plurality of correspondences between one of the preset positions of the plurality of positioning devices and one of the plurality of sets of positioning data, the one of plurality of correspondences is a relationship that one of the plurality of identity documents corresponding to each of the plurality of calculated distances is located on one of the plurality of wheels; counting a plurality of sets of matching relationship based on the plurality of positioning devices; and in a counting result, determining one of the plurality of sets of matching relationship with the highest probability to be the matching relationship between the plurality of tire pressure sensors and the plurality of wheels. ### Claim 8 (depends on 7) The positioning method of tire pressure sensor according to claim 7, further comprising: sending the matching relationship between the plurality of tire pressure sensors and the plurality of wheels to a display unit of the vehicle by the receiving device. ### Claim 9 (depends on 7) The positioning method of tire pressure sensor according to claim 7, wherein the plurality of positioning devices is respectively arranged in structural areas of the vehicle adjacent to the plurality of wheels.