Embedded on-board diagnostic (OBD) device for a vehicle

Patent metadata

Field	Value
Publication number	US-10872478-B2
Application number	US-201816059419-A
Country	US
Kind code	B2
Filing date	Aug 9, 2018
Priority date	Sep 14, 2015
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

Abstract

Embodiments described herein provide various examples of a low cost, low power, fully automated, unobtrusive, and vehicle-independent radio frequency (RF) communication device to be plugged into a standard on-board diagnostic (OBD) port inside a vehicle to access OBD diagnostic data. According to one aspect, an OBD device for a vehicle is disclosed. This OBD device includes: an OBD adapter configured to be plugged into an OBD port of a vehicle and a first RFID module electrically coupled to the OBD adapter. The first RFID module is further configured to receive OBD data of a vehicle from an associated OBD port via the OBD adapter and communicate at least a portion of the received OBD data to a first RFID reader when the first RFID module is queried by the first RFID reader.

First claim

What is claimed is:

1. An on-board diagnostic (OBD) device for a vehicle, comprising:
at least one memory configured to store OBD data of the vehicle received from an OBD port of the vehicle;
a first radio frequency identification (RFID) tag electrically coupled to the at least one memory and configured to communicate at least a portion of the received OBD data to a first RFID reader when queried by the first RFID reader; and
a second RFID tag electrically coupled to the at least one memory and configured to communicate the at least a portion of the received OBD data to a second RFID reader based in part on the first RFID tag communicating the at least a portion of the received OBD data to the first RFID reader,
wherein at least one of the first RFID tag and the second RFID tag is configured as a passive RFID tag which functions without requiring power from either a vehicle or the OBD device.

2. The OBD device of claim 1 , wherein the at least one memory comprises a first memory coupled to the first RFID tag and the second memory coupled the second RFID tag, each memory configured to store the OBD data of the vehicle received from the OBD port.

3. The OBD device of claim 1 , wherein the first RFID tag is configured to communicate with the first RFID reader using a first frequency band and the second RFID tag is configured to communication with the second RFID reader using a second frequency band that differs from the first frequency band.

4. The OBD device of claim 1 , wherein the first RFID tag is an ultra-high frequency (UHF) RFID tag configured to communicate with the first RFID reader using an UHF frequency band.

5. The OBD device of claim 1 , wherein the second RFID tag is a high frequency (HF) RFID tag configured to communicate with the second RFID reader using a HF frequency band.

6. The OBD device of claim 1 , wherein the second RFID tag is configured to communicate with a near-field communication (NFC)-enabled device by providing the at least a portion of the received OBD data to the NFC-enabled device.

7. The OBD device of claim 1 , wherein the first RFID reader is positioned at a first location external to the vehicle and stationary relative to the ground, and wherein the first RFID tag is configured to communicate with the first RFID reader when a vehicle carrying the OBD device passes by the first location.

8. The OBD device of claim 1 , wherein the first RFID reader is a handheld RFID reader.

9. The OBD device of claim 1 , wherein the first RFID tag or the second RFID tag is configured to receive the OBD data of the vehicle when the respective RFID tag queries the OBD port.

10. The OBD device of claim 1 , wherein the first RFID tag is configured as a passive RFID tag which functions without requiring power from either a vehicle or the OBD device, whereby allowing the first RFID tag to communicate with the first RFID reader when the OBD device is switched off or non-functional.

11. The OBD device of claim 1 , wherein the second RFID tag is configured as a passive RFID tag which functions without requiring power from either a vehicle or the OBD device, whereby allowing the second RFID tag to communicate with the second RFID reader when the OBD device is switched off or non-functional.

12. The OBD device of claim 11 , wherein the microprocessor is coupled to the first RFID module through an I 2 C control bus.

13. The OBD device of claim 1 , further comprising an OBD adaptor configured to interface with the OBD port of the vehicle and coupled to the first and second RFID tags, wherein the OBD device further comprises a microprocessor coupled between the OBD adapter and the first RFID module and configured to process the received OBD data via the OBD adapter.

14. The OBD device of claim 1 , wherein the OBD device is configured to operate without requiring a network connection, a data service, or a pairing to another networked device.

15. The OBD device of claim 1 , wherein both of the first RFID tag and the second RFID tag are configured as a passive RFID tags.

16. An on-board diagnostic (OBD) device for a vehicle, comprising:
at least one memory configured to store OBD data of the vehicle received from an OBD port of the vehicle;
a radio frequency identification (RFID) tag electrically coupled to the at least one memory and configured to communicate at least a portion of the received OBD data to a first RFID reader when queried by the first RFID reader; and
a wireless communication module comprising an antenna, the wireless communication module electrically coupled to the at least one memory and configured to communicate the at least a portion of the received OBD data to a second reader based in part on the RFID tag communicating the at least a portion of the received OBD data to the first RFID reader,
wherein the OBD device is configured to operate in a pass-through mode and a continuous mode, wherein, in pass-through mode, the OBD data of the vehicle is retrieved via the OBD port and communicated to the first RFID reader automatically in response to the query from the first RFID reader and, in continuous mode, OBD data of the vehicle is stored in the at least one memory for subsequent communication to the first RFID reader when the first RFID tag is queried by the first RFID reader.

17. The OBD device of claim 11 , wherein the communications module is one of a second RFID tag, a Bluetooth™ module, a Wi-Fi module, and an NFC module.

18. The OBD device of claim 16 , in continuous mode, OBD data of the vehicle is retrieved from the OBD port periodically at a predetermined time interval.

19. A method for providing on-board diagnostic (OBD) data of a vehicle to a plurality of RFID readers, comprising:
querying, from an OBD port of the vehicle, OBD data of the vehicle using an OBD device coupled with the OBD port;
storing the received OBD data into a memory of the OBD device; and
receiving a first query from a first RFID reader for at least a portion of the stored OBD data of the vehicle;
transmitting the at least a first portion of the stored OBD data to the first RFID reader using a first RFID tag of the OBD device; and
transmitting the at least a portion of the stored OBD data to a second RFID reader using a second RFID tag of the OBD device based in part on the first RFID tag transmitting the at least a portion of the stored OBD data to the first RFID reader,
wherein at least one of the first RFID tag and the second RFID tag is configured as a passive RFID tag which functions without requiring power from either a vehicle or the OBD device.

20. The method claim 19 , further comprising receiving a second query from the second RFID reader based in part on the first RFID tag transmitting the at least a portion of the stored OBD data to the first RFID reader.

21. An on-board diagnostic (OBD) system, the system comprising:
an OBD device coupled to a vehicle, the OBD device comprising:
at least one memory configured to store OBD data of the vehicle received from an OBD port of the vehicle,
a first radio frequency identification (RFID) tag electrically coupled to the at least one memory and configured to communicate at least a portion of the received OBD data to a first RFID reader when queried by the first RFID reader, and
a second RFID tag electrically coupled to the at least one memory and configured to communicate the at least a portion of the received OBD data to a second RFID reader based in part on the first RFID tag communicating the at least a portion of the received OBD data to

Assignees

• Neology Inc

Inventors

• Nyalamadugu Sheshi
• Mullis Joe
• Boellaard Alexander
• Waktola Birektawit
• Freeman Raymond

Classifications

• G06K7/10366

  the interrogation device being adapted for miscellaneous applications · CPC title

• G07C2205/02

  using a vehicle scan tool · CPC title

• G07C5/008

  communicating information to a remotely located station (transmission systems for measured values G08C) · CPC title

• G07C5/0808 Primary

  Diagnosing performance data (testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005) · CPC title