Browse Prior Art Database

DATA Retrieval From a Vehicle Attached to a Technician Terminal

IP.com Disclosure Number: IPCOM000035246D
Original Publication Date: 1989-Jun-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 13K

Publishing Venue

IBM

Related People

Greene, WB: AUTHOR [+2]

Abstract

This article describes a technique which allows a vehicle technician terminal to retrieve data that is NOT EQUAL or OUT OF RANGE of given data while being checked for a fault.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 53% of the total text.

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DATA Retrieval From a Vehicle Attached to a Technician Terminal

This article describes a technique which allows a vehicle technician terminal to retrieve data that is NOT EQUAL or OUT OF RANGE of given data while being checked for a fault.

Typically when a vehicle is being diagnosed by a technician terminal, it can request data from the vehicle via the assembly line diagnostic link (ALDL). The data that is returned from the vehicle can be all the data available which then must be sifted through for the desired data. Alternatively, the data may also be requested and returned only if it is equal to a given value.

The technique disclosed herein allows the data to be returned if it is NOT EQUAL to a given value or the data will be returned if it is OUT OF RANGE of the given value. With the decision being made in the ALDL attachment, the host processor would not have to perform this operation.

In the first example, if the given value is 38, all data streams would be returned when the specified location was not equal to 38. The NOT EQUAL command could have the second and third set of parameters and then all parameters must be NOT EQUAL in order to return data. The BC and SB parameters would increase to show the additional parameters.

The second example would return the data stream if a specified location(s) was lower than 36 or higher than 40. These two values being checked are within tolerance and no data would be returned if the value was within this range. The first set of parameters check for the data being lower than 'DO' and if that is true, the data will be returned. The second s...