APPARATUS AND METHOD FOR COLLECTING VEHICLE DIAGNOSTIC INFORMATION

• US 20120166040A1
• Filed: 12/21/2011
• Published: 06/28/2012
• Est. Priority Date: 12/23/2010
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Han, Tae-Man, Kim, Jeong-Hwan, HWANG, Hyun-Yong, Eun, Jee-Sook, Lim, Chang-Gyu, Shin, Chang-Min, Jeon, Seo-Hyun, Jeong, Yang-Jae, Park, Mi-Ryong, Kim, Chul-Hong
• Granted Patent: US 8,688,316 B2
• Time in Patent Office: Days
• US Class Current: 701/33.4
• CPC Class Codes: G05B 19/0423 Input/output

Abstract

Disclosed herein are an apparatus and method for collecting vehicle diagnostic information. The apparatus for collecting vehicle diagnostic information includes a conversion unit and an optical multiplexing unit. The conversion unit receives a plurality of frames complying with respective different protocols from a plurality of networks for vehicles, which collects vehicle diagnostic information, in electric signal form, and converts the plurality of frames into a plurality of optical signals having respective different wavelengths based on the wavelengths previously assigned to the respective protocols. The optical multiplexing unit generates a wavelength division multiplexed signal by performing wavelength division multiplexing (WDM) on the plurality of optical signals, and transmits the wavelength division multiplexed signal via an optical cable.

Claims

1. An apparatus for collecting vehicle diagnostic information, comprising:

a conversion unit for receiving a plurality of frames complying with respective different protocols from a plurality of networks for vehicles in electric signal form, the networks used for collecting vehicle diagnostic information, and converting the plurality of frames into a plurality of optical signals having respective different wavelengths; and

an optical multiplexing unit for generating a wavelength division multiplexed signal by performing wavelength division multiplexing (WDM) on the plurality of optical signals, and transmitting the wavelength division multiplexed signal via an optical cable.

2. The apparatus of claim 1, wherein the conversion unit converts the plurality of frames into the plurality of optical signals based on the wavelengths previously assigned to the respective protocols.

3. The apparatus of claim 1, wherein each of the plurality of frames complies with any one of a Local Interconnect Network (LIN) protocol, a Controller Area Network (CAN) protocol, a FlexRay protocol, and a Media Oriented System Transport (MOST) protocol.

4. An apparatus for collecting vehicle diagnostic information, comprising:

an optical demultiplexing unit for generating a plurality of optical signals having respective different wavelengths by classifying a wavelength division multiplexed signal received via an optical cable by predetermined wavelengths;

a conversion unit for generating a plurality of frames complying with respective different protocols for vehicles by converting the plurality of optical signals into electric signals corresponding to the frames;

a frame processing unit for extracting vehicle diagnostic information from each of the plurality of frames using previously stored information about the protocols for vehicles; and

an electrical multiplexing unit for collecting the vehicle diagnostic information of the plurality of frames.

5. The apparatus of claim 4, wherein the information about the protocols for vehicles comprises frame structure information of each of the protocols for vehicles.

6. The apparatus of claim 4, further comprising a diagnostic information management unit for storing the vehicle diagnostic information collected via the electrical multiplexing unit.

7. A method of collecting vehicle diagnostic information, comprising:

receiving a plurality of frames complying with respective different protocols from a plurality of networks for vehicles, which collects vehicle diagnostic information;

generating a wavelength division multiplexed signal by performing wavelength division multiplexing (WDM) on the plurality of frames; and

transmitting the wavelength division multiplexed signal via a single channel.

8. The method of claim 7, wherein the generating comprises:

generating a plurality of optical signals having respective different wavelengths by converting the plurality of frames from electric signals into the optical signals based on the wavelengths previously assigned to the respective protocols; and

generating the wavelength division multiplexed signal by optically multiplexing the plurality of optical signals.

9. The method of claim 7, wherein the networks for vehicles comply with the respective different protocols for vehicles.

10. The method of claim 7, wherein the transmitting comprises transmitting the wavelength division multiplexed signal for extracting the vehicle diagnostic information from the wavelength division multiplexed signal.

11. The method of claim 10, wherein the transmitting comprises transmitting the wavelength division multiplexed signal for extracting the vehicle diagnostic information from the plurality of frames generated by optically demultiplexing the wavelength division multiplexed signal.

12. The method of claim 10, wherein the transmitting comprises transmitting the wavelength division multiplexed signal for extracting the vehicle diagnostic information from the plurality of optical signals generated by classifying the wavelength division multiplexed signal by respective predetermined wavelengths.