Real-time test controller
AssigneeCompaq Computer Corporation
InventorsRussel L. Gillenwater, Philip J. Brisky, Kenneth G. Keels
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AssigneeCompaq Computer Corporation
InventorsRussel L. Gillenwater, Philip J. Brisky, Kenneth G. Keels
Estimating the term…
The real-time test controller maintains a failure database containing a history of past failures for devices under test and selectively sorts the history for the device to be tested. The diagnostic testing sequence is then rearranged with tests having higher failure rates being conducted first. If faults are detected, a message is provided to the operator and the failure database is either manually or automatically updated with the latest fault information. In this manner, a continuously updated history of faults is maintained and the most efficient testing sequence is followed, resulting in significant time and cost savings.
A method for testing manufactured products, comprising:
A system for testing manufactured products, comprising:
A real-time test controller, comprising:
A system for testing manufactured products, comprising:
Dependencies are inferred from the claim text.
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Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing: test methods
Specific tests of electronic circuits not provided for elsewhere: automated test systems [ATE]; using microprocessors or computers
Computing and data processing
Measuring electric variables
Term ended 10 Nov 2013 (estimated)
1. Field of the Invention
The present invention generally relates to systems and methods for diagnostic testing performed during a manufacturing process. More particularly, the present invention relates to methods and apparatus for controlling diagnostic testing processes.
2. Description of the Prior Art and Related Information
FIG. 1 is a block diagram showing a general configuration of the real-time diagnostic test controller in accordance with an embodiment of the present invention;
FIG. 2 is a block diagram showing the real-time diagnostic test controller in accordance with a preferred embodiment of the present invention;
FIG. 3 is a flow chart of a preferred embodiment of the command module shown in FIG. 2;
FIG. 1 illustrates the real-time test controller 1 set up to test a device 60. The device 60 under test may comprise a single device or the test controller 1 can control the testing of a plurality of devices simultaneously. Tests, for example A, B, and C, are conducted at locations identified as Test Station A (TSA), Test Station B (TSB), and Test Station C (TSC), respectively. Locations TSA, TSB, and TSC may be physically separate testing locations or may comprise a single location such as a test bed in a testing facility. The present invention is not limited to the number of tests or locations illustrated.
For example, it is common in manufacturing facilities to have a series of tests conducted at different levels and at different locations in the manufacture of a product. Thus, 20 tests may be conducted at 14 different locations during the assembly of a wheel structure in an automotive plant, and 30 tests may be conducted at 7 different locations after the wheel structure is mated with an axle. The finished product, i.e., an automobile, will then undergo another series of tests (e.g., electrical systems, mechanical structures, adherence to design tolerances, heating/air conditioning, exposure to water/sun/ice, etc.) at numerous locations. In such a situation, the test controller 1 of the present invention would control the testing process throughout the various stages and levels of testing.
The controller 1 may be located at a particular test location or may be located at a remote sight. For example, when a single testing location is used, the test controller 1 may be directly connected to the devices 60 and control the series of tests, e.g., A, B, C. Or, for example, the controller 1 may be located at a main manufacturing sight and testing locations may be located both at: the main manufacturing facility and in a remote assembly location.