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Enabling Unidentified Device To Participate In A Test System Certification Blockchain Disclosure Number: IPCOM000255298D
Publication Date: 2018-Sep-14
Document File: 6 page(s) / 871K

Publishing Venue

The Prior Art Database


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Testing and calibrating electronic equipment can involve using equipment that is not associated with a serial number or other unique identifier.  For example, when testing an electronic component on a printed circuit board, a jig or holder may be used to mechanically and electrically connect the circuit board to the test system.  Such a jig or holder may be fabricated by the test engineer from parts available in an electronics lab and may not have an associated serial number or other unique identifier.  Similarly, when calibrating the test system or a device under test (DUT), calibration equipment may not have an associated unique identifier.

It may be desirable to create and store certification records regarding testing or calibration of equipment.  Such records may identify the hardware and software of the test system, the tests performed, and any calibration equipment used.  The certification records may be stored in a distributed ledger system, such as a blockchain system.  If one or more devices used to perform a test or calibration are not identified, a complete blockchain that represents the test system, including the unidentified device cannot be created.  The subject matter described herein involves assigning identifiers to unidentified test or calibration equipment and using the assigned identifiers to generate distributed ledger entries of test or calibration system configuration.


The system described herein addresses problems related to the creation of a traceable certification record for a DUT and/or the associated test or calibration system, where calibration or testing of the DUT involves the use of a calibration source or device that does not have a unique identifier, for example, because the device is not powered or does not include a network or digital communication interface.

 In one exemplary implementation, a scannable code/tag/chip can be affixed to a calibration source or other test device.  The code can be scanned or read by a mobile phone so as to obtain a unique certification system identifier value for the previously unidentified device.  Such a code is referred to herein a unit ID or UID.  The UID value is communicated to a certification system and associated distributed ledger data store, where it is associated with a traceable certification object (TCO).  Key data related to the calibration source / device may be provisioned by a user and associated with the UID and/or the TCO.  The TCO may then be associated with other certification objects that describe specific calibrations, calibration events, or testing of a DUT.

Using the subject matter described herein, legacy devices can be enabled to participate in a blockchain-based traceable certification system.

Figure 1 shown below illustrates one method by which a calibration source that does not include a unique identifier can participate in a blo...