PROTOCOL ADAPTER FOR PASSING DIAGNOSTIC MESSAGES BETWEEN VEHICLE NETWORKS AND A HOST COMPUTER

• US 20130173751A1
• Filed: 01/04/2012
• Published: 07/04/2013
• Est. Priority Date: 01/04/2012
• Status: Active Grant

• Current Assignee: Dearborn Group, Inc.
• Original Assignee: Dearborn Group, Inc.
• Inventors: Zachos, Mark P.
• Granted Patent: US 8,880,654 B2
• Time in Patent Office: Days
• US Class Current: 709/219
• CPC Class Codes: B60W 2050/0005 Processor details or data handling, e.g. memory registers or chip architecture
• CPC Class Codes: B60W 2050/0075 Automatic parameter input, automatic initialising or calibrating means
• CPC Class Codes: B60W 2050/021 Means for detecting failure or malfunction
• CPC Class Codes: B60W 2556/45 External transmission of data to or from the vehicle
• CPC Class Codes: H04L 12/2825 Reporting to a device located outside the home and the home network access arrangements H04L12/2856; for remote control or remote monitoring of applications H04L67/025; telephonic communication systems adapted for combination with telemetering systems H04M11/002
• CPC Class Codes: H04L 2012/40273 the transportation system being a vehicle
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/12 Protocol engines

Abstract

A protocol adapter for transferring diagnostic messages between networks within a vehicle and a host computer. The protocol adapter operates as a voltage translator to support J1708 software. The protocol adapter also recognizes when the protocol adapter is connected to a host computer running the J1939 and/or J1708 protocols and automatically switches to that protocol.

Claims

1. A protocol adapter for transferring diagnostic messages between one or more vehicle networks and at least one external host computer, said adapter comprising:

a channel matrix tool for providing communication between said one or more vehicle networks and said at least one external host computer;

a central processing unit (CPU), said CPU controlling the operation of said channel matrix tool; and

a non-volatile memory for providing storage of data received from said one or more vehicle networks.

2. The protocol adapter according to claim 1, wherein said protocol adapter transfers and logs said data simultaneously.

3. The protocol adapter according to claim 2, wherein said protocol adapter records said data from said one or more vehicle networks, simultaneously transfers said data to said at least one external host computer, and said at least one external host computer records said data.

4. The protocol adapter according to claim 2, wherein said data saved by protocol adapter is transferred to said at least one external host computer once connection is reestablished, when the connection between said protocol adapter and said at least one external host computer is disconnected.

5. The protocol adapter according to claim 1, wherein said protocol adapter acts as a multiplexer having multiple inputs to a single output, a single input to multiple outputs, or any combination therebetween.

6. The protocol adapter according to claim 1, wherein said channel matrix tool provides a streaming data function between said one or more vehicle networks and said at least one external host computer.

7. The protocol adapter according to claim 1, wherein said protocol adapter is a channel data rate converter, comprising:

at least one input channel for transferring said data to said channel matrix tool; and

at least one output channel, wherein said channel matrix tool receives said data from said at least one input channel at a first bit rate and transmits the data through said at least one output channel at a second bit rate, said first bit rate being different from said second bit rate.

8. The protocol adapter according to claim 1, wherein said protocol adapter is a channel replicator, comprising:

at least one input channel for transferring said data to said channel matrix tool; and

a plurality of output channels, wherein said channel matrix tool receives said data from said at least one input channel and transfers said data to said plurality of output channels.

9. The protocol adapter according to claim 8, wherein said data is transferred from said at least one input channel at a first bit rate, and said data is transferred to said plurality of output channels at multiple bit rates.

10. The protocol adapter according to claim 1, wherein said protocol adapter is a channel multiplexer, comprising:

a plurality of input channels for transferring said data to said channel matrix tool; and

a single output channel for transferring said data away from said channel matrix tool sent to said channel matrix tool by said plurality of input channels.

11. The protocol adapter according to claim 10, wherein said data is transferred at one or more bit rates through said plurality of input channels.

12. The protocol adapter according to claim 1, wherein said protocol adapter is a channel disassembler, comprising:

at least one input channel for transferring said data to said channel matrix tool;

a plurality of output channels for transferring said data away from said channel matrix tool, wherein said channel matrix tool separates and directs which parts of said data received by said channel matrix tool from said plurality of input channels to said plurality of output channels.

13. The protocol adapter according to claim 12, wherein said data is transferred at one or more bit rates through said plurality of output channels.

14. The protocol adapter according to claim 1, wherein said protocol adapter is a channel echo, comprising:

at least one input channel for transferring said data to said channel matrix tool; and

at least one output channel, wherein said channel matrix tool receives said data from said at least one input channel and said data is transferred through said at least one output channel.

15. The protocol adapter according to claim 1, wherein said protocol adapter is a serial converter, comprising:

at least one input channel for transferring said data to said channel matrix tool in a first format; and

one or more output channels, wherein said channel matrix tool converts said data to a second format and said data is transferred through said one or more output channels in said second format.

16. The protocol adapter according to claim 1, wherein said protocol adapter performs selective one-way data transfer comprising:

at least one input channel for transferring said data to said channel matrix tool;

a subordinate network which transfers said data to and from said channel matrix tool; and

a plurality of sub-networks operable for communication with one another, each of said plurality of sub-networks having a host controller, wherein each of said plurality of sub-networks is operable for receiving said data from and transferring data to said subordinate data network.

17. The protocol adapter according to claim 16, further comprising:

said at least one input channel further comprising a host channel, wherein said plurality of sub-networks communicate with said host channel though said channel matrix tool; and

a host link, wherein said channel matrix tool communicates with said subordinate network through the use of said host link.

18. A protocol adapter for transferring diagnostic messages between one or more vehicle networks and at least one external host computer, said adapter comprising:

a channel matrix tool for providing communication between said one or more vehicle networks and said at least one external host computer;

at least one input channel operable for providing communication between said one or more vehicle networks and said channel matrix tool;

at least one output channel operable for providing communication between said channel matrix tool and said at least one external host computer;

a central processing unit (CPU), said CPU controlling the operation of said channel matrix tool; and

a non-volatile memory for providing storage of data received from said one or more vehicle networks, thereby allowing said protocol adapter to provide a streaming data function and record data simultaneously.

19. The protocol adapter according to claim 18, wherein said protocol adapter is operable to record data from said one or more vehicle networks while simultaneously transferring data to said at least one external host computer such that said protocol adapter provides said streaming data function between said one or more vehicle networks and said at least one external host computer.

20. The protocol adapter according to claim 18, further comprising:

a first bit rate, said at least one input channel operable for transferring data from said one or more vehicle networks and said channel matrix tool at said first bit rate; and

a second bit rate, said at least one output channel operable for transferring data from said channel matrix tool and said at least one external host computer at said second bit rate.

21. The protocol adapter according to claim 20, wherein said first bit rate is different from said second bit rate.

22. The protocol adapter according to claim 18, said at least one input channel further comprising multiple input channels for providing communication between said one or more vehicle networks and said channel matrix tool, said multiple input channels operable for transferring data at one or more bit rates.

23. The protocol adapter according to claim 18, said at least one output channel further comprising multiple output channels for providing communication between said channel matrix tool and said at least one external host computer, said multiple output channels operable for transferring data at one or more bit rates.

24. The protocol adapter according to claim 23, wherein said channel matrix tool receives data from said at least one input channel, and directs various portions of said data to said multiple output channels.

25. The protocol adapter according to claim 23, wherein said channel matrix tool changes the format of data received by said channel matrix tool from said at least one input channel, such that data transferred through said at least one input channel is in a different format compared to the data being transferred through said multiple output channels.

26. The protocol adapter according to claim 18, said at least one input channel further comprising multiple input channels, and said at least one output channel further comprising multiple output channels, wherein said channel matrix tool is operable to transfer data from any of said multiple input channels to any of said multiple output channels.

27. The protocol adapter according to claim 26, wherein data is transferred from said multiple input channels to said multiple output channels at one or more bit rates.

28. The protocol adapter according to claim 18, further comprising:

a subordinate network operable for transferring data to and from said channel matrix tool;

a plurality of sub-networks operable for communication with one another and with said subordinate network, and each of said plurality of sub-networks also in communication with a respective host controller;

said at least one input channel further comprising a host channel, wherein said channel matrix tool controls the communication between said host channel and said plurality of sub-networks; and

a host link operable for providing communication between said channel matrix tool and subordinate network.

29. A protocol adapter for transferring diagnostic messages between one or more vehicle networks and at least one external host computer, said adapter comprising:

a channel matrix tool for providing communication between said one or more vehicle networks and said at least one external host computer;

at least one input channel operable for transferring data from said one or more vehicle networks to said channel matrix tool at one or more bit rates;

at least one output channel operable for transferring data from said channel matrix tool to said at least one external host computer at said one or more bit rates;

a central processing unit (CPU), said CPU controlling the operation of said channel matrix tool; and

a non-volatile memory for providing storage of data received from said one or more vehicle networks.

30. The protocol adapter of claim 29, wherein said one or more bit rates used for transferring data through said at least one input channel is different compared to said one or more bits rates used for transferring data through said at least one output channel.

31. The protocol adapter of claim 29, wherein said protocol adapter is operable provide a data streaming function between said one or more vehicle networks and said at least one external host computer while simultaneously recording data received from said at least one input channel, and said at least one external host computer is operable to record data received from said protocol adapter via said data streaming function.

32. The protocol adapter according to claim 29, further comprising:

said at least one input channel further comprising a plurality of input channels operable to provide electronic communication between said one or more vehicle networks and said channel matrix tool; and

said at least one output channel further comprising a plurality of output channels operable to provide electronic communication between said channel matrix tool and said at least one external host computer.

33. The protocol adapter according to claim 32, said one or more bit rates further comprising a first bit rate and a second bit rate, wherein data is transferred from said one or more vehicle networks to said channel matrix tool using said first bit rate, and data is transferred from said channel matrix tool to said at least one external host computer using said second bit rate.

34. The protocol adapter according to claim 32, wherein said channel matrix tool divides data received from said plurality of input channels, and distributes parts of said data to each of said plurality of output channels.

35. The protocol adapter according to claim 29, further comprising:

a plurality of sub-networks in operable communication with one another, each of said plurality of sub-networks having a host controller;

a subordinate network operable for transferring data between said plurality of sub-networks and said channel matrix tool;

a host link for providing electronic communication between said subordinate network and said channel matrix tool; and

said at least one input channel further comprising a host channel, wherein said channel matrix tool controls electronic communication between said host channel and said plurality of sub-networks.