CN103336194A - Integrated automatic test system of on-board computer of civilian airliner - Google Patents
Integrated automatic test system of on-board computer of civilian airliner Download PDFInfo
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Abstract
An integrated automatic test system of a on-board computer of a civilian airliner, which comprises a test controller, a test instrument collection, a switching system, and a signal interface device, wherein the test controller is connected with the test instrument collection and the switching system through an instrument control bus; the test instrument collection and the switching system are connected with the signal interface device; the signal interface device is used for being connected with a to-be-tested object of on-board electronic equipment of the to-be-tested civilian airliner; the test controller comprises a test module, a test management module, a test function library module, a driver module, and an operating system module; the test module, the test management module, the test function library module, the driver module, and the operating system module are classified into five levels during operation. The integrated automatic test system adopts the modularized design in the hardware architecture and the hierarchical design in the software architecture, so as to allow the modification and the extension of hardware and software to be more convenient, facilitate the improvement of resource reusability of the test system, and low the cost.
Description
Technical field
The present invention relates to a kind of aircarrier aircraft electronic unit Auto-Test System, relate in particular to a kind of large-scale general integrated automated test system of airline carriers of passengers airborne computer.
Background technology
Auto-Test System refers under the control of computing machine, the general designation of the type systematic that can finish excitation, measurement, data processing automatically, show and output test result.Auto-Test System is used for finishing to the measurand performance test of (Unit Under Test is called for short UUT), according to the analysis of test result, also can be expanded into diagnostic system to Fault Diagnosis and location.Auto-Test System is divided into by tested object: Special Automatic test macro and general purpose automatic test system.General purpose automatic test system: be at certain field and measurand and the test macro of developing.
At present, the detection of the air environment of airliner and maintenance platform usually all by the exploitation of external producer with integrated and then be introduced into domestic.At home, the automatic test and maintenance system of aircarrier aircraft electronic unit is integrated starts to walk than later with exploitation, does not also develop enterprise or the unit of standardization, the general integrated automated test system of normalized large-scale advanced person.More external companies are in tangible leading position in the exploitation of aircarrier aircraft electronic unit Auto-Test System with integration field through the accumulation of many decades.Its representative has the SMART CATS Auto-Test System of early stage Israel RADA company, and the ATEC 6 serial large-scale integrated automated test systems of the EADS company that takes the lead technically now.
The introduction of these ASs and correlation technique has brought significant benefit and valuable technological accumulation for us.What can not ignore is that the introduction of these technology needs a large amount of project investment funds on the one hand but meanwhile; benefit and risk are difficult to reach a rational equilibrium point; on the other hand, manufacturer can use some special integrated circuit boards to carry out blockade on new techniques usually, and later maintenance cost is very high.In addition, because the variation of market and electronic equipment test request is carried out the expansion of hardware configuration and testing software and is revised very complicated to above-mentioned introduction system.
Under this overall background, use the experience of advanced foreign technology according to us, and on the basis of groping in nearly 10 years aspect the integrated automated test system exploitation, develop a kind of advanced person meet industry standardization, the general integrated automated test system of normalized large-scale advanced person is significant.
Summary of the invention
The large-scale general integrated automated test system that the object of the present invention is to provide a kind of low cost, easily expand, reusability of resources is good, the degree of modularity is high.
Purpose of the present invention can realize by following scheme: a kind of general integrated automated test system of airline carriers of passengers airborne computer, this test macro comprises test controller, testing tool collection, switching system and signal interface unit, described test controller links to each other with switching system with described testing tool collection by the instrument control bus, described testing tool collection links to each other with described signal interface unit with switching system, and it is that airline carriers of passengers air environment to be measured links to each other that described signal interface unit is used for measurand;
Test controller is controlled the testing tool collection by switching system, signal interface unit, corresponding testing tool collection is communicated with measurand, and control testing tool collection is finished the excitation to measurand, collection and the measurement of test data, read test instrument collection transmits the measurement result data of coming then, and described test controller is finished test report and output according to the measurement result data;
Described test controller comprises test module, the test and management module, the test function library module, driver module and operating system module, described test module, the test and management module, the test function library module, driver module and operating system module are divided into five levels when operation, test module is test layer, be used for record and describe test process, the test and management module is the test and management layer, it is the control dispatching center of test macro, it is the interface of man-machine interaction, be used for the various test patterns of control, the test function library module is test function storehouse layer, be used for the set of the various power functions of storage, driver module is that instrument drives layer, is used for realizing the installation of testing tool collection and application interface is provided that operating system module is operating system layer, be used for realizing described testing system software framework, automatic test run environment is provided;
According to testing requirement, the test and management module is taken out corresponding power function and is carried out test program development from the test function library module, and the test procedure that generates put into described test module, the test and management module is again according to the execution flow process of test procedure in the test process management testing module, and transfer in the test function library module corresponding power function in order, by corresponding driver in these power function calling driver modules, realize control to switching system, testing tool collection by these drivers by operating system again.
The present invention is on hardware architecture, test macro is divided into several independently functional modules, namely control functional module---test controller, test function module---testing tool resource, channel selecting functional module---switching system and adaptive linkage function module---signal testing interface, make hardware system degree of modularity height of the present invention, easily expansion, cascade by switching system between measurand and testing tool resource, realization is to the timesharing utilization of limit test instrument resource, improve the reusability of resources of testing tool resource greatly, be conducive to reduce the cost of test macro.
The present invention aspect the testing software framework is being divided into it 5 levels, expansion, the modification of the software of each level are independent of each other, when changing as the model at concentrated certain testing tool of testing tool, only corresponding power function gets final product in the need corresponding modify test function library module, and for example when test procedure need change, only need to revise corresponding test procedure in the test module.
Described test and management module comprises test development management platform and test execution management platform, described test development management platform is to be testing engine with TestStand, and support comprises the power function that the program development software (PDS) of LabVIEW, LabWindows/CVI, Visual C/C++, Visual Basic .NET and C# etc. develops; The test execution management platform adopts TestStand test execution management software, can realize test procedure is carried out the management of flow process.
Described various power function refer to for arrange, control testing tool and finish the function of other standalone features.
Described signal testing interface arrangement is the universal testing interface device that meets ARINC 608A standard, and measurand realizes that by described signal interface unit and described testing tool collection and switching system standard, rapid physical are connected.Adopt universal testing interface device, be conducive to make the test program set (TPS) based on the exploitation of this hardware platform to possess outstanding portability.
Described instrument control bus comprises buses such as PXI, VXI, GPIB, RJ45.
As specific embodiments of the invention, described switching system links to each other with described test controller by the PXI bus, and described testing tool collection links to each other with described test controller by PXI, VXI, GPIB, RJ45 bus.
Described testing tool collection comprises the independent input resource that arranges, driver resource, power-supply system etc., described input resource is made up of multiple program control test surveying instrument, comprises multimeter, oscillograph, Timer, ARINC429 receiver, angle position indicator, phase voltage table, sensor etc.; Described driver resource comprises AWG (Arbitrary Waveform Generator), D/A converter, ARINC429 generator, RS-232/422/485 communication interface etc.; Described power-supply system comprises the AC/DC power supply of multiple control able to programme etc.
Described switching system comprises bus matrix assembly, resource allocation component, independent switch assembly and power switch component, described bus matrix assembly is a 384*8 switch matrix, described resource allocation component is a 64*8 switch matrix, described bus matrix assembly links to each other by 8 tunnel emulation buss with described resource allocation component, described independent switch assembly is made up of a plurality of relay switches independent of each other, and described power switch component is made up of a plurality of relay switches independent of each other equally.
Described signal interface unit comprises that signal receiver reaches the adapter suitable with measurand, and described adapter links to each other with described signal receiver, and measurand is connected on the signal receiver by corresponding adapter.
The signal receiver of described signal interface unit comprises 21 grooves, the corresponding 3-8 groove of bus matrix interface, the corresponding 9-11 groove of resource distribution interface, the corresponding 12-17 groove of independent switch interface, the corresponding 20-21 groove of power switch interface, above-mentioned four class interfaces are corresponding continuous with four assemblies of switching system, the input resource of testing tool collection, driver resource link to each other with the independent switch interface with the resource distribution interface of described signal interface unit, and the power-supply system of testing tool collection links to each other with the power switch interface of described signal interface unit; The power switch interface of signal interface unit can hold 15 tunnel 30 amperes of large power supplies connections, the power supplys below 75 tunnel 7.5 amperes and connect.
The relative prior art of the present invention has following beneficial effect: the present invention adopts modular design at hardware architecture, aspect software architecture, adopt hierarchical design, make modification, expansion on hardware, the software all convenient, be conducive to improve the reusability of resources of test macro, reduce cost; In addition, the present invention adopts the universal testing interface device that meets ARINC 608A standard, is conducive to make the test program set (TPS) based on the exploitation of this hardware platform to possess outstanding portability.
Description of drawings
Fig. 1 is the integrated theory diagram of hardware of the present invention;
Fig. 2 is the block diagram that is connected of switching system of the present invention, signal interface unit, testing tool collection and measurand;
Fig. 3 is the structural representation of signal interface unit of the present invention;
Fig. 4 is overall control flow chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As shown in Figure 1, the general integrated automated test system of the airline carriers of passengers airborne computer of the specific embodiment of the invention comprises test controller, testing tool collection, switching system and signal interface unit.Present embodiment selects the magnificent 610G industrial computer that grinds scientific ﹠ technical corporation as its test controller, and test controller links to each other with switching system with the testing tool collection by the instrument control bus.The instrument control bus comprises PXI, VXI, GPIB, RJ45, and switching system mainly links to each other with test controller by the PXI bus, and the testing tool collection then mainly links to each other with test controller by PXI, VXI, GPIB, RJ45 bus.
The testing tool collection links to each other with signal interface unit with switching system, and the signal testing interface arrangement is the universal testing interface device that meets ARINC 608A standard, and the testing tool collection is connected with measurand by signal interface unit with switching system.Signal interface unit is mainly used in the standard of measurand, access fast, signal interface unit comprises that signal receiver reaches the adapter suitable with measurand, as the supporting anchor clamps of some and measurand, the stationary installation that is connected with measurand and various test cables etc., measurand links to each other with signal receiver by corresponding adapter.
The control of various testing tool collection and switching system determines the setting of working method, state, function and the parameter of testing tool collection, the channel selecting of gauge tap system and switching in the test controller realization test macro.Test controller is controlled the testing tool collection by switching system, signal interface unit, corresponding testing tool collection is communicated with measurand, and control testing tool collection is finished the excitation to measurand, collection and the measurement of test data, read test instrument collection transmits the measurement result data of coming then, and described test controller is finished test report and output according to the measurement result data.
As shown in Figure 2, switching system comprises bus matrix assembly, resource allocation component, independent switch assembly and power switch component, the bus matrix assembly is a 384*8 switch matrix, the resource allocation component is a 64*8 switch matrix, the bus matrix assembly links to each other by 8 tunnel emulation buss with the resource allocation component, the independent switch assembly is made up of a plurality of relay switches independent of each other, and power switch component is made up of a plurality of relay switches independent of each other equally.
Equally as shown in Figure 2, the testing tool collection comprises independent input resource, driver resource, the power-supply system that arranges.The input resource is made up of multiple program control test surveying instrument, comprises multimeter, oscillograph, Timer, ARINC429 receiver, angle position indicator, phase voltage table, sensor etc., is used for gathering and the various signals of measurement.Driver resource refers to that other provides the general name of the device of various unlike signals to measurand except power-supply system.Excitation to measurand namely is to described measurand transmission other signal except power supply function.Driver resource comprises AWG (Arbitrary Waveform Generator), D/A converter, ARINC429 generator, RS-232/422/485 communication interface etc., for measurand provides necessary test and excitation signal.Power-supply system comprises the AC/DC power supply of multiple control able to programme etc.
Shown in Fig. 2,3, the signal receiver of signal interface unit comprises 21 grooves, mainly is divided into bus matrix interface, the resource distribution interface, and independent switch interface and power switch interface four classes, four class interfaces are four assemblies of corresponding switching system respectively.
As shown in Figure 2, the 3-8 groove of bus matrix interface respective signal interface arrangement is mainly used in connecting the bus matrix assembly of test point and the switching system of measurand.The 9-11 groove of resource distribution interface respective signal interface arrangement is mainly used in connecting the resource allocation component in testing tool collection and the switching system.The bus matrix assembly links to each other by 8 tunnel emulation buss with the resource allocation component, and they are under the control of test controller, and realization measurand measurement point is connected with corresponding testing tool collection.Test controller is selected idle emulation bus, measurand is connected on this emulation bus, the resource allocation component is by same emulation bus simultaneously, corresponding testing tool collection is connected on this emulation bus, realization testing tool collection is connected with measurand, and then realizes the measurement of signal.
By emulation bus, can realize testing tool collection and flexible the connection with passage between measurand are switched, realization is to the timesharing utilization of limit test instrument collection, improved the utilization factor of testing tool collection greatly, reduce required equipment and the number of cables of test macro exploitation, be conducive to reduce the cost of test macro.
The 12-17 groove of independent switch interface respective signal interface arrangement, be mainly used in connecting the independent switch assembly of other testing tool collection (as signal source and sensor) and switching system, also link to each other with measurand simultaneously, the break-make of system controller control independent switch assembly repeat circuit switch disposes the incentive condition that satisfies test request for measurand.
The 20-21 groove of power switch interface respective signal interface arrangement, be mainly used in connecting the power-supply system of testing tool collection and power switch component and the measurand of switching system, the break-make of system controller control power switch component repeat circuit switch realizes powering on and cutting off the power supply of measurand.The power switch interface can hold 15 tunnel 30 amperes of large power supplies connections, the power supplys below 75 tunnel 7.5 amperes and connect.
Workflow of the present invention is as follows: test controller is controlled all kinds of testing tool collection the test and excitation signal is provided, and the break-make of the relay in the gauge tap system, by the test signal interface arrangement test and excitation signal is exported to measurand, measurand is moved under the condition of appointment, and then by the signal interface arrangement, switching system, the running status of measurand and output are linked in the concentrated various types of signal detection resource of testing tool, finish measurement and the collection of signal, the measurement result that test controller reads the input resource row operation of going forward side by side, handle and comparison, whether judge measurand in operate as normal, the test report of last outputting standard.
Fig. 4 is overall control flow chart of the present invention, is divided into six layers of structure from the test procedure to the measurand from high to low, and namely test layer, test and management layer, test function storehouse layer, instrument drive layer, operating system layer and physical hardware layer.
The test function library module is in test function storehouse layer, be used for the set of the various power functions of storage, be the instruction database that uses LabView, Lab Windows/CVI, Microsoft Visual Studio etc. to develop in interior program development software (PDS), the test function storehouse adopts CVI to write in the present embodiment.The function of functions such as above-mentioned various power function refers to have excitation, setting, data acquisition and signal processing.
The test and management module is in the test and management layer, and the test and management module is the control dispatching center of system, is the interface of man-machine interaction, is used for the various test patterns of control.The test and management module comprises test development management platform and test execution management platform.
The developing instrument that the test development management platform facilitates for the user can realize that test process describes functions such as the configuration of program development, testing tool collection, executable file generation and testing engine and environment arrange.It is to be testing engine with TestStand, and support comprises the power function that the program development software (PDS) of LabVIEW, LabWindows/CVI, Visual C/C++, Visual Basic .NET and C# etc. develops.The test execution management platform adopts TestStand test execution management software, can realize test procedure is carried out the management of flow process.
Test module is in high-rise test layer, is used for record and describes test process.Test module contains all test procedures of this test macro, and test procedure needs the test and management module that the power function in the test function library module is organized, controlled, and realizes the configuration of relevant device and the setting of running environment.
Driver module is in instrument and drives layer, is used for realizing the installation of testing tool collection and application interface being provided.
Operating system module is in operating system layer, is used for realizing the testing system software framework, and automatic test run environment is provided.
As shown in Figure 4, according to testing requirement, the test and management module is taken out corresponding power function and is carried out test program development from the test function library module, and the test procedure that generates put into described test module, the test and management module is again according to the execution flow process of test procedure in the test process management testing module, and transfer in the test function library module corresponding power function in order, by corresponding driver in these power function calling driver modules, realized the switching system in the physical hardware layer by operating system by these drivers again, the control of testing tool collection.
Claims (9)
1. the general integrated automated test system of an airline carriers of passengers airborne computer, it is characterized in that, this test macro comprises test controller, testing tool collection, switching system and signal interface unit, described test controller links to each other with switching system with described testing tool collection by the instrument control bus, described testing tool collection links to each other with described signal interface unit with switching system, and it is that airline carriers of passengers air environment to be measured links to each other that described signal interface unit is used for measurand;
Test controller is controlled the testing tool collection by switching system, signal interface unit, corresponding testing tool collection is communicated with measurand, and control testing tool collection is finished the excitation to measurand, collection and the measurement of test data, read test instrument collection transmits the measurement result data of coming then, and described test controller is finished test report and output according to the measurement result data;
Described test controller comprises test module, the test and management module, the test function library module, driver module and operating system module, described test module, the test and management module, the test function library module, driver module and operating system module are divided into five levels when operation, test module is test layer, be used for record and describe test process, the test and management module is the test and management layer, it is the control dispatching center of test macro, it is the interface of man-machine interaction, be used for the various test patterns of control, the test function library module is test function storehouse layer, be used for the set of the various power functions of storage, driver module is that instrument drives layer, is used for realizing the installation of testing tool collection and application interface is provided that operating system module is operating system layer, be used for realizing described testing system software framework, automatic test run environment is provided;
According to testing requirement, the test and management module is taken out corresponding power function and is carried out test program development from the test function library module, and the test procedure that generates put into described test module, the test and management module is again according to the execution flow process of test procedure in the test process management testing module, and transfer in the test function library module corresponding power function in order, by corresponding driver in these power function calling driver modules, realize control to switching system, testing tool collection by these drivers by operating system again.
2. the general integrated automated test system of airline carriers of passengers airborne computer according to claim 1, it is characterized in that, described test and management module comprises test development management platform and test execution management platform, described test development management platform is to be testing engine with TestStand, and support comprises the power function that the program development software (PDS) of LabVIEW, LabWindows/CVI, Visual C/C++, Visual Basic .NET and C# develops; The test execution management platform adopts TestStand test execution management software, can realize test procedure is carried out the management of flow process.
3. the general integrated automated test system of airline carriers of passengers airborne computer according to claim 1, it is characterized in that, described signal testing interface arrangement is the universal testing interface device that meets ARINC 608A standard, and measurand realizes that by described signal interface unit and described testing tool collection and switching system standard, rapid physical are connected.
4. the general integrated automated test system of airline carriers of passengers airborne computer according to claim 3 is characterized in that, described instrument control bus comprises PXI, VXI, GPIB, RJ45 bus.
5. the general integrated automated test system of airline carriers of passengers airborne computer according to claim 4, it is characterized in that, described switching system links to each other with described test controller by the PXI bus, and described testing tool collection links to each other with described test controller by PXI, VXI, GPIB, RJ45 bus.
6. the general integrated automated test system of airline carriers of passengers airborne computer according to claim 5, it is characterized in that, described testing tool collection comprises independent input resource, driver resource, the power-supply system that arranges, described input resource is made up of multiple program control test surveying instrument, comprises multimeter, oscillograph, Timer, ARINC429 receiver, angle position indicator, phase voltage table, sensor; Described driver resource comprises AWG (Arbitrary Waveform Generator), D/A converter, ARINC429 generator, RS-232/422/485 communication interface; Described power-supply system comprises the AC/DC power supply of multiple control able to programme.
7. according to the general integrated automated test system of each described airline carriers of passengers airborne computer of claim 1 ~ 6, it is characterized in that, described switching system comprises the bus matrix assembly, the resource allocation component, independent switch assembly and power switch component, described bus matrix assembly is a 384*8 switch matrix, described resource allocation component is a 64*8 switch matrix, described bus matrix assembly links to each other by 8 tunnel emulation buss with described resource allocation component, described independent switch assembly is made up of a plurality of relay switches independent of each other, and described power switch component is made up of a plurality of relay switches independent of each other equally.
8. the general integrated automated test system of airline carriers of passengers airborne computer according to claim 7, it is characterized in that, described signal interface unit comprises that signal receiver reaches the adapter suitable with measurand, and described adapter links to each other with described signal receiver.
9. the general integrated automated test system of airline carriers of passengers airborne computer according to claim 8, it is characterized in that, the signal receiver of described signal interface unit comprises 21 grooves, the corresponding 3-8 groove of bus matrix interface, the corresponding 9-11 groove of resource distribution interface, the corresponding 12-17 groove of independent switch interface, the corresponding 20-21 groove of power switch interface, above-mentioned four class interfaces are corresponding continuous with four assemblies of switching system, the input resource of testing tool collection, driver resource links to each other with the independent switch interface with the resource distribution interface of described signal interface unit, and the power-supply system of testing tool collection links to each other with the power switch interface of described signal interface unit; The power switch interface of signal interface unit can hold 15 tunnel 30 amperes of large power supplies connections, the power supplys below 75 tunnel 7.5 amperes and connect.
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