US 9,009,013 B2Granted

Method and device for verification of an automation system

AssigneeAVL List GmbH

InventorsManfred Krainz, Christoph Weidinger, Gregor Klaric

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Abstract

Specific tests on vehicles or parts thereof must be performed and analyzed according to a prescribed standard. The verification of an automation system for performing such a test and the final result of such a test is a complex and time-consuming procedure, however. So as not to have to repeat the complex verification in the case of changes in the automation system, it is proposed that the correctness of a test run only be checked once and in the case of established correctness, the reference data defining the test run be stored as the reference standard. If a change is performed in the automation system, it is sufficient to perform the test run again and to compare the reference data of the reference standard to the new reference data.

Claims17

Dependent claims

A system for verifying an automation system, said verifying system comprising:

a simulation apparatus;
an automation apparatus, wherein the automation apparatus and the simulation apparatus are connected to one another via an interface;
the simulation apparatus is activated by the automation apparatus according to a test run to be performed;
the simulation apparatus simulates (1) a test stand and a test subject to be tested with a test model, and (2) a data acquisition device situated on the test stand for acquiring data or a measured value with a device model;
and, data or measured values generated by the test model and the device model are transmitted to the automation apparatus via the interface;
a storage unit in which a reference standard for the test run is stored after the proper function of the automation apparatus and/or the result calculation for the performed test run has been established, whereas first reference data defining the simulation apparatus and/or the performed test run is stored in the reference standard, the test run being repeated if the automation system has been changed, whereas second reference data is generated, and
an analysis unit which compares the first reference data stored in the reference standard to the second reference data and which verifies the changed automation system if the compared first and second reference data correspond,
wherein the verifying system is configured for performance of the test run and delivering data or measured values and/or a result calculation based on these data or measured values.

5 more elements

A method for verifying the operation of an automation system used in controlling a test run on a test subject on a test stand when the automation system is changed from a first configuration to a second configuration, said method comprising:

(1) providing a simulation apparatus configured to provide data and measured values of a simulated test subject on a simulated test stand when a test run is performed by said automation system, said simulation apparatus comprising hardware,
(2) controlling said simulation apparatus using said automation system in said first configuration, in accordance with a performed test run,
(3) compiling first reference data which includes at least one of first data and measured values from said simulation apparatus during step (2), calculated results from said first data or measured values, configuration of the simulation apparatus, definition of manual or automated inputs for control of the test stand, and definition of the test run,
(4) changing said automation system from said first configuration to a second configuration different from said first configuration,
(5) controlling said simulation apparatus using said automation system with said second configuration, in accordance with said performed test run,
(6) compiling second reference data which includes at least one of second data and measured values from said simulation apparatus during step (5) calculated results from said second data or measures values, configuration of the simulation apparatus, definition of manual or automated inputs for control of the test stand, and definition of the test run, and
(7) comparing said first and second reference data to confirm correspondence and verify that said automation system satisfied a predetermined standard of operation.

4 more elements

A method for verifying an automation system, said method comprising:

providing a previously verified simulation apparatus, said simulation apparatus comprising hardware and models;
providing an automation system, said automation system comprising a first configuration, said first configuration including first hardware and first software;
controlling said simulation apparatus with said automation system comprising said first configuration in accordance with a predefined test run, said controlling including controlling said models;
acquiring first configuration results corresponding to said predefined test run controlled with said automation apparatus comprising said first configuration;
checking for proper operation of said automation system comprising said first configuration;
storing said first configuration results as a reference standard if said automation system comprising said first configuration operated properly;
modifying at least one of said first hardware and said first software of said first configuration to create an unverified second configuration, said unverified second configuration comprising at least one of unverified hardware and unverified software;
controlling said previously verified simulation apparatus, comprising said models, with said automation system having said unverified second configuration in accordance with said predefined test run, said controlling including controlling said models of said previously verified simulation apparatus;
obtaining unverified second configuration results corresponding to said predefined test run controlled with said automation apparatus comprising said unverified second configuration;
verifying said automation system comprising said unverified second configuration if said second configuration results correspond to said reference standard.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/662,592Filed 23 Apr 2010
Priority: AT GM257/200923 Apr 2009
Published: US 2010/0292974 A118 Nov 2010
Granted: 14 Apr 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G05B 23/0256
Characterised by the fault detection method dealing with either existing or incipient faults: injecting test signals and analyzing monitored…
G05B 17/02
Systems involving the use of models or simulators of said systems: electric
G05B 2219/23452
Pc programming: simulate sequence on display to control program, test functions
G05B 2219/24038
Pc safety: several test signals stored in memory and used as input signals