• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method for configuring a test table (36) of a test system (10) for testing a predetermined cable harness, which has a plurality of connectors, and a corresponding test system (10) for performing the method, wherein a plurality of Arrangement positions for test modules (20) are provided, wherein each test module (20) has at least one connector receptacle for connection to a corresponding connector of the cable harness and can be connected to a test circuit of the test table. For the testing of the predetermined wiring harness, a plurality of predetermined test modules (20) are provided, wherein for each of these predetermined test modules (20) a predetermined arrangement position is provided on the test table (36). The method comprises taking an image of the test table (36) and then generating a representation of the recorded image of the test table (36), wherein the representation at least a first image is displayed, which represents one of the predetermined test modules (20), and wherein the image representing the predetermined inspection module (20) is shown in the representation relative to the image of the inspection table (36) at a location corresponding to the predetermined placement position of the one predetermined inspection module (20) on the inspection table (36).
    公开号:CH714287A2
    申请号:CH01355/18
    申请日:2018-11-06
    公开日:2019-05-15
    发明作者:Engberts Uwe
    申请人:Engberts Mess Steuer Und Regelsysteme Gmbh；
    IPC主号:
    专利说明:

    Description: The invention relates to a method for configuring a test table for testing plug-in cable harnesses and to a test system for testing plug-in cable harnesses using the test table.
    Systems and methods for testing cables with plugs for their continuity, which are used, for example, in automobile construction, are already known. These systems are used to test cables that are combined into so-called cable harnesses so that a large number of cables can be checked at the same time.
    Since a plug is connected to each cable end, two test modules provided with a plug receptacle, which are installed in the test table, are basically required for each cable. The test modules have so-called intelligent module control units, which are connected to a control device via a data bus and take over the electrical control of the test modules, so that the wiring effort can be significantly reduced.
    On the test table, all electrical connections of a wiring harness are checked, with an individual test program that checks the wiring harness module by module is available for each wiring harness.
    Since a test system is designed for different cable sets or wire harnesses, it is necessary that one and the same test table can be converted quickly and easily to other wire harnesses. Existing test modules, which are suitable for multiple use, must be tested and adapted to the application in the test table or new test modules installed in the test table. For this, a module-specific assembly or test plan must be made available, whereby the test sequence must be archived and documented.
    It is therefore an object of the invention to provide a method for configuring a test table and a test system for testing cables, in particular cable harnesses, using a test table, by means of which a quick and precise arrangement of the test modules, which are used for testing a certain cable set or harness are necessary, can be realized on a test table.
    [0007] Embodiments of the present invention provide a method for configuring a test table of a test system, which is provided for testing a predetermined wiring harness. The test table has a large number of arrangement positions for test modules, each test module having at least one plug receptacle for connection to a corresponding plug of the cable harness, which is provided with a plurality of plugs, and can be connected to a test circuit of the test table. A plurality of predetermined test modules are provided for testing the predetermined cable harness, a predetermined arrangement position being provided on the test table for each of these predetermined test modules. The method according to the invention comprises recording an image of the test table and then generating an image of the recorded image of the test table, at least one first image representing one of the predetermined test modules being faded in, and the image representing the predetermined test module in the representation relative to the recorded image of the test table is faded in at a location on the test table which corresponds to the predetermined arrangement position of this predetermined test module on the test table.
    By the method, a construction or conversion of a test table for testing wiring harnesses can be realized in a quick but at the same time precise manner, with the help of a camera provided, which is connected to the test table, for the correct positioning of the test modules required to be tested can be made without this positioning requiring complicated calculations and mental steps on the part of a user. The specifications of a respective test program are used to determine the test setup, i.e. H. establish the exact arrangement of the test modules on the test table. If a current test set-up of the test table does not match that required by the test program, although this relates to the coordinates of the test table defined by the user for the test modules, the set-up of the test table is supported with the aid of the camera provided.
    The need to use the test system is justified by the fact that an installation position for the module electronics in the test table can fundamentally differ from the predetermined position.
    A basic idea of the present invention is therefore to use the image of the camera as an orientation aid by displaying at least one image, which represents one of the test modules to be installed, as a comparison and current virtual positions on the image of the test table recorded with the camera are displayed so that the test modules can be installed one by one precisely at the displayed arrangement positions in a simple manner.
    [0011] The method and the test system thus achieve a high degree of flexibility through the rapid interchangeability of the test modules and a cost-saving multiple use of the test table over many test table generations.
    The method further includes selecting a wire harness to be tested from a plurality of wire harnesses and using the selected wire harness as the predetermined wire harness. Choosing the cable
    CH 714 287 A2 baums can be made from a list of cable harnesses that are stored in the test system, or manually by the test system operator.
    A confirmation is preferably received from the user that one of the test modules provided for testing the predetermined wiring harness has already been placed on the test table. The user can hereby inform the test system that he has placed the test module satisfactorily on the test table.
    The method may preferably include detecting the creation of a line connection between the test module via its module electronics and a measurement circuit of the test table and using the detection of the line connection as the confirmation that the test module has been placed on the test table.
    Alternatively, mechanical actuation on the part of the user of an actuating element attached to the test module, in particular a switch, can be detected.
    Furthermore, for those test modules for which the confirmation that the test module was correctly placed on the test table has been received, an image representing the correctly placed test module is not shown in the representation of the image of the test table. This ensures that only test modules that are not correctly placed on the test table are shown in the representation of the image of the test table, and not at the same time, but preferably one after the other, so that it is considerably easier for the user to set up the test table.
    The method preferably comprises selecting a test module to be placed next on the test table from the set of test modules provided for testing the predetermined wiring harness, for which the confirmation that the test module has been placed on the test table has not yet been received. In this case, the selected test module can be superimposed in the form of an image or a graphic identification, or another recognition of the module, in the representation of the image of the test table, which was or was just recorded with the camera in advance.
    Preferably, the method further comprises fading in a second image that is different from the first image that is shown in the representation of the image of the test table and that represents one of the predetermined test modules, in the representation of the captured image of the test table for those test modules for which the confirmation that the test module was placed on the test table.
    The method further comprises fading in a third image different from the first image, which is one of the predetermined test modules, into the representation of the recorded image of the test table for those test modules for which the confirmation that the test module has been placed on the test table, was not obtained.
    After all of the test modules provided for testing the predetermined cable harness have been installed in the test table in the correct arrangement position, a measurement of the electrical properties of the predetermined cable harness connected to the predetermined test modules is carried out, it being understood that also measuring the physical properties of a test module can be performed.
    The test system for testing cable harnesses is configured to carry out the method. The test system can use a programmable control device and a test table in which test modules are to be installed, which have at least one connector receptacle assigned to a specific connector of a cable to be tested. An image capturing device, in particular a camera, is also provided, which is provided as an assistant for the arrangement of the test modules in the test table, and is mounted above the test table. A test module that is incorrectly positioned on the test table and / or unnecessary for the specific test table structure is determined and displayed on an image display device that is provided in the test system, the correct target position for this test module being shown on an image depicted on the test table and in Overlay of this image is shown. The image can be a single image or a live video image.
    [0022] Further advantages, details and features result from the following description of several exemplary embodiments with reference to the drawings:
    The figures show: [0023]
    Fig. 1
    Fig. 2
    Fig. 3
    Fig. 4
    5, 6 a schematic representation of a cable harness provided with three plugs;
    a schematic representation of a test module to be installed in a test table;
    a schematic representation of a system according to the invention with built-in test modules and a camera;
    3 shows a schematic illustration of a system according to the invention according to FIG. 3 with a connected cable harness, as shown in FIG. 1;
    each a representation of an active configuration view.
    CH 714 287 A2 FIG. 1 shows a cable harness 12 which has three ends, each of which is provided with a plug 14, 16, 18 and is designed such that they can each be connected to a suitable plug receptacle of a test module, so that the wiring harness 12 can be checked. The three plugs 14, 16, 18 are dimensioned and designed such that they can each be connected to a suitable plug receptacle of a test module which is to be installed in the test table, so that the wiring harness 12 can be tested.
    A test module 20, which is arranged on a so-called test table and is used to test individual cables or cable harnesses, is shown in FIG. 2. This test module 20 has no wiring and can be quickly and easily positioned in a test table. The test module 20 is constructed in two parts and has an upper part 22 which, when installed, can be seen in a test table and has a plug receptacle 24 for a predetermined plug of a cable to be tested.
    Furthermore, the test module 20 has a lower part 26, on which the electronics of the test module 20 can be attached with a switching matrix, the electronics being exchangeable. A connecting line 28 is provided at a lower end of the test module 20, via which the test module 20 can be connected to a module distributor 32 via a patch cable 30. The module distributor 32 has, in a manner known per se, a plurality of equivalent connection sockets 34, so that the respective test modules 20 can be freely connected.
    3 shows a schematic representation of a system 10 according to the invention for testing cables provided with plugs. The system 10 has a test table 36 with a table body 38 and a base plate 40. The base plate 40 has a multiplicity of empty tiles 42 which are arranged in a row and which can be easily removed and reinserted, so that the test modules 20 installed or to be installed in the test table 36 can be converted in a simple manner and used in different arrangement positions.
    The base plate has a plurality of tile-like components 52 which are attached in a row, these tile-like components 52 being easily removable from the base plate 40 and reusable.
    Furthermore, an operating module 54 is installed in the test table 36 in a manner known per se in an easy-to-use position in the lower part of the base plate 40.
    Thus, a quick installation of the test modules 20 is achieved at the respective intended installation positions in the test table 36.
    In a lower part of the test table 36 is a computing unit, here a personal computer 44, via which the system can be controlled. The test system 10 also has a display device 46 which is connected to the personal computer 44 and on which a stored test program is displayed.
    A camera 50 is fixedly mounted above the display device 46, which according to the invention serves as an assistant when installing the test modules required for the cable harness to be tested.
    As shown in FIG. 3, the camera 50 is mounted on a stand 48 which is fixedly connected to the table body 38, it being understood that other mounting positions of the camera 48 are also conceivable. It is important that the camera 48 is positioned and aligned in such a way that the base plate 40 of the test table 36 can be completely recorded with the camera 48 and displayed in an image of the test table 36 shown on the screen 46.
    The camera 48 is first calibrated and the corner positions of the base plate 40 are detected, so that the arrangement positions marked with numbers and letters for the test modules 20 to be installed can be displayed completely in the recorded image. On the basis of this matrix structure of the base plate 40, an exact assignment of the positions of the test modules can be achieved.
    A finished construction of the test table is shown in FIG. 4. The three test modules 20 are attached to the correct arrangement positions, the cable harness 12 to be tested being connected to the respective plugs 14, 16, 18 attached to the ends of the cable harness 12 with the corresponding plug receptacles 24 of the built-in test modules 20 required for the test so that the wiring harness 12 can be checked for continuity.
    The functioning of the test system 10 according to the invention with the built-in camera 50 is described in more detail below.
    The test system according to the invention works in two operating modes, namely in an application mode and in a configuration mode.
    The application mode is called during operation if the system 10 is to be used to support the positioning of test modules 20. Decisive features here are that a target position of the test modules 20 to be positioned is displayed specifically on the display device shown in FIGS. 3 and 4 and the corresponding image section can be enlarged. The operating module 54 built into the test table 36, which can be operated manually by the operator of the test table 36, can be used for the enlargement. However, an external control device such as a computer mouse can be used.
    [0039] All configuration options of the test system 10 according to the invention are only available in the configuration mode. When the test system is started in the configuration mode, a reference image of the test table 36 is taken
    CH 714 287 A2 stores and define a coordinate transformation from system coordinates to image coordinates by recording the image coordinates of the table outline, which, as shown in the illustration in FIG. 3, with the camera 50 and converted by a control device.
    The most important picture elements are explained below using the configuration mode.
    5 and 6 each show a screenshot of the active configuration view with the coordinate transformation already defined. The arrangement positions of test modules required for testing the predetermined wiring harness to be tested are also compared here with the test modules 20 currently installed in the test table 36.
    In the representation of the recorded image of the test table 36, as shown in FIG. 5, those test modules are shown in dashed lines, which are located in the correct arrangement position in the test table with respect to a selected cable harness to be tested. This representation of the correctly displayed test modules represents the second picture. In order to facilitate the quick recognition of the correctly installed test modules, the borders 56 can also be shown in color so that they can be quickly understood by the operator.
    Furthermore, as shown in FIG. 6, the image of the test module 58, which is required for the test of the predetermined wiring harness, but which is not present in the test table 36, is also graphically, for example likewise also outlined and broken, but with another color is displayed, at a location on the base of the test table that is intended for this missing test module. The image of the test module 58 can be faded in transparently or it can also cover it completely.
    If, as can be seen in FIGS. 5 and 6, a reference image is stored, the corresponding positions of the reference image are blended semi-transparently at these points in order to make a comparison of the actual state with the target state. Without a reference picture, the arrangement positions are preferably stored semi-transparently in their corresponding color and size.
    If a test module already positioned on the test table 36 is not required for the test of the predetermined cable harness to be tested and is not used, this is identified at its arrangement position, for example, as shown in FIG. 6, by a crossed-out rectangle 60 and shown in color , so that the operator can immediately see that he does not need to use this test module for the respective setup of the test table.
    Also test modules that are required for the current test setup, but are present in an incorrect arrangement position so that they are positioned differently, are shown graphically accordingly, for example with a crossed-out rectangle 62, which represents the third image, such as shown in FIG. 6, but with, for example, a red marking, so that for the operator these test modules can immediately be regarded as incorrectly positioned.
    This addition to the camera image is available in the two operating modes. In the application mode described above this is self-explanatory, for the configuration mode it offers the possibility of checking the table structure before a reference picture is created.
    Coordinate information can be determined by pressing a "Transformation" button on the operating module 54. The four corners of the table surface can be marked with four points, as shown in FIG. 3. A corresponding overlay shows on the display device 46, for example in green or red, whether a selected polygon is technically valid. In addition, the upper right corner of the base plate 40 of the test table 36, that is the highest coordinate, is required in this case G10 in order to define the dimensions of the test table 36.
    5, a square with the content “D5” can be identified, which represents an orientation aid for which the mouse position on the camera image is converted into table coordinates.
    Reference images can be created with a button "Save view" for the respective cable harness to be checked. A number of different cable harnesses to be tested or already tested are selected using the dropdown menu.
    If a button "camera" is pressed, a selection screen for camera, image size and refresh rate is opened.
    If a predetermined wiring harness is tested, all module positions are first checked. As an example, an error is recognized here, the wrong module position is shown in a program view before positioning.
    The test system with the camera used as an assistance system can now be started in two ways in the application mode.
    [0054] First of all, a positioning mode can be started explicitly, for example using the context menu and control module 54.
    Thereafter, a wrong position must first be selected and confirmed with a rotary selector switch of the operating module 54 before one of the matching test modules offered by the program can be selected. Around
    CH 714 287 A2 the modules are easier to find on the table, their LEDs, if available, are switched on as soon as they are selected.
    Alternatively, by connecting a test module via the patch cable, the positioning on valid positions can be started directly. This can be a new connection (the corresponding module was not initially connected) or a reconnection (the connection to a module was disconnected and re-established).
    A module is now selected first and the program offers the possible positions, of which, analogous to the first selection variant, one must be selected and confirmed by a rotary selector switch of the operating module before the camera support can be carried out.
    After confirmation, the application mode of the camera support is started. According to the invention, after an image of the test table 36 has been recorded by the camera 50, a representation of the recorded image of the test table 36 is generated. At least one first image 64, as shown in FIG. 6, is shown in the illustration, which represents one of the predetermined pictorial test modules 20. In this case, the image 64 representing the predetermined test module 20 is shown in the representation relative to the image of the test table 36 at a location which corresponds to the predetermined arrangement position of the one predetermined test module on the test table 36. The corresponding test module can thus be installed in a simple manner at this point.
    In addition to the reference transition and frame drawing already mentioned, there is also a continuously drawn, illuminated green frame. This green frame represents the target position, which is also named next to the zoom bar. The view of the target position can be enlarged here using the zoom bar or the rotary selector switch.
    At this point it can be assumed that the user knows the module to be positioned, be it by connecting a patch cable or confirmation after identifying via LED, even if the installation position differs from the current virtual position.
    In addition, if the potential of the assistance system is used, a reference image is available, as a result of which the module is already, for example, semi-transparent at the target position. This enables the user to install the module in a targeted manner.
    If the module position is reached satisfactorily, this must be confirmed in order to save the new virtual position of the module and to return to the overview. It is not relevant whether the selected module is currently connected to the test table, so that the connection can be carried out as the completion of all positioning.
    [0063] A cancel button can be used to return to the overview without saving the new virtual coordinate.
    Thus, all modules required for the current test table structure are checked one after the other and installed in a simple and quick manner in the test table, so that the predetermined cable harnesses to be tested can be connected and checked.
    权利要求:
    Claims (13)
    [1]
    claims
    1. A method for configuring a test table (36) of a test system (10) for testing a predetermined wiring harness (12) which has a plurality of plugs (14, 16, 18), a plurality of arrangement positions on the test table (36) There is provided for test modules (20), each test module (20) having at least one plug receptacle (24) for connection to a corresponding plug (14, 16, 18) of the cable harness (12) and connectable to a test circuit of the test table (36) wherein a plurality of predetermined test modules (20) are provided for testing the predetermined wiring harness (12), a predetermined arrangement position being provided on the test table (36) for each of these predetermined test modules (20), the method comprising:
    Taking an image of the test table (36);
    Generating a representation of the recorded image of the test table (36), at least one first image representing one of the predetermined test modules (20) being faded in, and the image representing the predetermined test module (20) in the representation relative to the Image of the test table (36) is faded in at a location which corresponds to the predetermined arrangement position of the one predetermined test module (20) on the test table (36).
    [2]
    2. The method of claim 1, further comprising selecting a wire harness (12) to be tested from a plurality of wire harnesses and using the selected wire harness (12) as the predetermined wire harness.
    [3]
    3. The method of claim 1 or 2, further comprising receiving a confirmation from a user that one of the test modules (20) provided for testing the predetermined wiring harness (12) has been placed on the test table (36).
    CH 714 287 A2
    [4]
    4. The method of claim 3, further comprising detecting a line connection between the test module (20) and a measuring circuit of the test table (36) and using the line connection detection as the confirmation that the test module (20) on the test table (36) was placed
    [5]
    5. The method of claim 3 or 4, further comprising detecting a mechanical actuation of an actuating element attached to the test module, in particular switch, by the user.
    [6]
    6. The method according to any one of claims 3 to 5, wherein for those test modules (20) for which the confirmation that the test module was placed on the test table (36) was received, the image representing the test module (20) does not appear in the Representation of the image of the test table is displayed.
    [7]
    7. The method according to any one of claims 1 to 6, further comprising selecting a test module (20) to be placed next on the test table (36) from the set of test modules (20) provided for testing the predetermined wiring harness (12).
    [8]
    8. The method according to claim 7, wherein the selection of the test module (20) to be placed next on the test table (36) comprises detecting the establishment of a line connection between the test module (20) and a measuring circuit of the test table (36).
    [9]
    9. The method according to claim 7 or 8, wherein only the image of the selected test module (20) is shown in the representation of the image of the test table (36).
    [10]
    10. The method according to any one of claims 3 to 9, further comprising superimposing a different from the first image, which represents one of the predetermined test modules (20), in the representation of the recorded image of the test table (36) for such test modules, for which confirmation that the test module (20) was placed on the test table (36) was received.
    [11]
    11. The method according to any one of claims 3 to 10, further comprising fading in a third image different from the first image, which one of the predetermined test modules (20), in the representation of the recorded image of the test table (36) for those test modules for which the Confirmation that the test module (20) was placed on the test table was not received.
    [12]
    12. The method according to any one of claims 1 to 11, further comprising measuring electrical properties of the predetermined wiring harness (12) connected to the predetermined test modules (20).
    [13]
    13. Test system for testing cable harnesses, the test system comprising a test table (36) and a camera (50) mounted above the table and configured to carry out the method according to one of claims 1 to 12.
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    同族专利:
    公开号 | 公开日
    DE102017126491A1|2019-05-16|
    引用文献:
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    法律状态:
    2019-08-30| AZW| Rejection (application)|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017126491.4A|DE102017126491A1|2017-11-10|2017-11-10|Method for configuring a test table and a test system for carrying out the method|
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