JP5517906B2 - Harness inspection device - Google Patents

Description

  The present invention relates to a harness inspection apparatus, and more particularly to a harness inspection apparatus used for harness continuity inspection of large products such as artificial satellites.

  Conventionally, various proposals have been made regarding continuity inspection and evaluation of a wire harness. For example, in Patent Document 1, the terminal number of each terminal mounted on a plurality of cables of the wire harness and the terminal and cable attributes such as the shape and mounting direction of the terminal, the color of the cable, or precautions at the time of inspection are described. If the search bar touches each terminal during inspection and the terminal touches each terminal during the inspection, the terminal number and attribute stored for that terminal are read as voice information, and the terminal number and / or attribute of the terminal touched with the search bar is voiced. A method of inspecting a wire harness is disclosed in which a terminal that does not match the information can be identified, so that even an inexperienced inspector can inspect the wire harness of various products quickly and accurately.

  Further, for example, in Patent Document 2, the wiring characteristics of a wire harness in which a proximal end is constrained and a connector constrained to a connector seat is attached to the distal end are analyzed by a finite element method, and the analysis result is displayed on the screen of the display unit As a wire harness evaluation method for the above evaluation, a virtual three-dimensional shape image of a wire harness including a connector based on CAD data created to design a three-dimensional wiring shape, and physical properties and shapes of the wire harness A condition setting screen for setting a part of analysis conditions not included in the CAD data with respect to the constraint position and the constraint direction by input operation is displayed on the screen, and the connector is instructed on the virtual three-dimensional shape image. Recognize the destination position as the coordinate value of the constraint position, and set it in the analysis conditions included in the CAD data and the condition setting screen Based on the analysis conditions necessary for the evaluation of the analysis conditions and the constraint positions defined by the coordinate values, the reaction force in the state of gripping the routing shape and the connector is calculated using a finite element method. And a method of displaying a virtual three-dimensional shape image of the routing shape including the analyzed connector and an analysis result of the reaction force on a screen.

  Furthermore, for example, in Patent Document 3, for a wire harness routed by being restrained at a distance from each other with a restraining tool, for an analysis model composed of nodes set on the center line, Analyzing the three-dimensional position of each node associated with torsional deformation using the finite element method to create deformation analysis model data that defines the routing shape between the restraint positions, and responding to this deformation analysis model data on the display screen A wiring harness display method for displaying a wiring shape in the three-dimensional virtual space is disclosed.

JP 2007-108077 A JP 2006-210323 A JP 2007-80132 A

  Since a harness applied to a large product such as an artificial satellite targeted by the present invention is large in scale, an inspection method by an operator using a search rod proposed in Patent Document 1 is not realistic, and the harness In general, the inspection apparatus adopts a method of automatically conducting a continuity inspection based on an automatic inspection procedure and a connection list with a harness. In this case, the conventional automatic inspection method for large products such as artificial satellites has the following problems in the inspection preparation work for connecting the inspection device and the harness and the harness continuity inspection performed thereafter.

  That is, in the inspection preparation work, the worker creates an automatic inspection procedure for carrying out an automatic inspection and a connection list for connecting the inspection apparatus and the harness based on the connection information, and stores them in the harness inspection apparatus. Set. And the inspection device and harness are connected based on the created connection list. However, in large products such as artificial satellites, the size of the harness differs depending on the product, and the types and number of connectors constituting the harness also differ. In order to absorb the difference in the type of the cable with the connection cable, the connectors constituting the harness are searched one by one and connected to the appropriate connector of the harness inspection device. In this connection work, when the number of cables constituting the harness is large, it takes a long time only to find the connector to be connected and connect it to the inspection apparatus.

  In the harness continuity inspection, the operator makes a pass / fail judgment by looking at the measurement result displayed on the monitor screen. If the measurement result does not satisfy the conditions for acceptance determination determined by the operator, the cause is identified based on the inspection result of the failure. In this cause identification work, first, identification work for a defective portion such as a connector of the inspection device, a connection cable between the harness and the inspection device, and a connector constituting the harness is started. In this case, when the number of wires constituting the harness is large, it is necessary to identify the cause after extracting all the relevant connections, so that it takes a long time just to search for the target connector. In addition, it is necessary to extract all the connectors and pins that are electrically connected and analyze the cause, so if there are a large number of wires that make up the harness, just search for the target connector and pins for a long time. It takes to happen.

  As a method of solving such a problem in the harness continuity inspection, it is conceivable to adopt a method of structure analysis and result display using the three-dimensional CAD data of the wire harness proposed in Patent Documents 2 and 3. However, in the methods proposed in Patent Documents 2 and 3, the application method to the harness continuity inspection for inspecting the electrical connection is unknown.

  The present invention has been made in view of the above, and an object of the present invention is to obtain a harness inspection apparatus that can efficiently perform the harness continuity inspection of large products such as artificial satellites.

In order to solve the above-described problems and achieve the object, the present invention analyzes the circuit information of the harness based on the design data and the inspection equipment data, and the design value of the conduction resistance and all the circuits electrically connected to the circuit. Network information that is circuit information , a connection list between the inspection apparatus and the harness, and a connection information analysis unit that creates an automatic inspection procedure, and the connection list and the automatic inspection procedure that are created by the connection information analysis unit. An inspection unit that performs a continuity inspection of the harness, an actual measurement value that is an inspection result of the inspection unit, a design value created by the connection information analysis unit, and a determination reference value included in the design data An inspection result comparison unit that compares two by two, various data excluding the automatic inspection procedure created by the connection information analysis unit, three comparison results obtained by the inspection result comparison unit, and the inspection configuration Using the inspection device layout information included in the data and the three-dimensional CAD model included in the design data, the design value created by the connection information analysis unit and the inspection result comparison unit obtained A data creation unit that creates display data in which three comparison results are reflected in the three-dimensional CAD model, and a display unit that displays the display data on a screen are provided.

  According to the present invention, the operator can grasp the positional relationship between the wire and the connector related to an arbitrary connection and the connection position to the harness inspection apparatus on the three-dimensional CAD model displayed on the display unit. The measured resistance value and design value of the inspection result, the comparison value thereof, etc. can be grasped simultaneously. Therefore, the harness continuity inspection of large products such as artificial satellites can be performed efficiently.

FIG. 1 is a block diagram showing a main configuration of a harness inspection apparatus according to Embodiment 1 of the present invention. FIG. 2 is a block diagram illustrating a specific configuration example of the harness inspection apparatus illustrated in FIG. 1. FIG. 3 is a diagram illustrating a configuration example when the data creation unit generates display data of a three-dimensional CAD model reflecting the comparison result. FIG. 4 is a diagram illustrating a configuration example in a case where the data creation unit generates display data of a three-dimensional CAD model reflecting design values and a three-dimensional CAD model reflecting actual measurement values. FIG. 5 is a diagram showing a screen image of the display unit. FIG. 6 is a diagram showing an image in which wires and connectors that are electrically connected on the three-dimensional CAD model displayed on the screen of the display unit are highlighted. FIG. 7 is a diagram illustrating an example of a connection information list of design data displayed on the screen of the display unit. FIG. 8 is a diagram in which the connector highlighted on the three-dimensional CAD model displayed on the screen of the display unit is displayed superimposed on the inspection apparatus layout. FIG. 9 is a block diagram showing a configuration in the case of creating a connection auxiliary diagram with the harness to be inspected as the second embodiment of the present invention. FIG. 10 is a block diagram showing a configuration when design analysis is performed as the third embodiment of the present invention.

  Embodiments of a harness inspection apparatus according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a main configuration of a harness inspection apparatus according to Embodiment 1 of the present invention. FIG. 2 is a block diagram illustrating a specific configuration example of the harness inspection apparatus illustrated in FIG. 1.

  In FIG. 1, a harness inspection apparatus (hereinafter simply referred to as “inspection apparatus”) 100 includes a connection information analysis unit 110, an inspection unit 120, an inspection result comparison unit 130, a data creation unit 140, and a display unit 150. It has. The inspection device 100 receives design data 210 and inspection facility data 310 set in an external storage device.

  With reference to FIG. 2, the structure of each part is demonstrated concretely. In FIG. 2, the design data 210 indicates a connection information list 211 describing connections between connector pins, connector information 212 indicating correspondence between connector types and specifications, and resistance values of wire wires constituting the harness. Wire material information 213, a three-dimensional CAD model 214 of a product including a harness to be inspected, and a determination reference value 215 for determining pass / fail of an inspection determined by an operator are included. The inspection facility data 310 includes inspection device connection cable information 311 and inspection device layout information 312 describing the conversion cable for connecting the harness and the inspection device 100. These data are input to each unit of the inspection apparatus 100 except the inspection unit 120 and the display unit 150.

  The connection information analysis unit 110 receives the connection information list 211, the connector information 212, and the wire material information 213 included in the design data 210, and the inspection apparatus connection cable information 311 included in the inspection facility data 310 as inputs. Information 111, which is all circuit information of circuits connected to each other, an automatic inspection procedure 112 for automatically conducting a continuity test, a design value 113 of continuity resistance calculated from design data, a harness and an inspection device 100, And a connection list (hereinafter simply referred to as “connection list”) 114 between the apparatus and the harness indicating the connection relationship between the two.

  The inspection unit 120 has a function of inputting the automatic inspection procedure 112 and the connection list 114 between the apparatus and the harness and outputting an actual measurement value 121 that is an inspection result obtained by automatically performing a continuity inspection. This function is the same as the function of the conventional harness inspection apparatus.

  The inspection result comparison unit 130 receives the design value 113, the actual measurement value 121, and the determination reference value 215 as input, and compares the three values with each other, the comparison data 131 between the design value and the actual measurement value, the determination reference value, and the actual measurement value. The comparison data 132 and the comparison data 133 between the determination reference value and the design value are created.

  The data creation unit 140 includes the inspection device layout information 312 included in the inspection facility data 310, the net information 111 analyzed by the connection information analysis unit 110, the connection list 114, the design value 113, and the inspection unit 120. The inspection result (actually measured value) 121, the comparison data 131, 132, 133 generated by the inspection result comparison unit 130, and the three-dimensional CAD model 214 included in the design data 210 are input and the comparison result is reflected. It has a function of creating display data of the three-dimensional CAD model 141, the three-dimensional CAD model 142 reflecting the design value, and the three-dimensional CAD model 143 reflecting the actual measurement value.

The display data of the three-dimensional CAD model 141 reflecting the comparison result includes inspection device layout information 312, net information 111, inspection result (actual measurement value) 121, three comparison data 131, 132, 133, and three-dimensional data. It is created based on the CAD model 214. A configuration example in this case is shown in FIG. FIG. 3 is a diagram illustrating a configuration example when the data creation unit generates display data of a three-dimensional CAD model reflecting the comparison result. FIG. 3 shows a case where the inspection result comparison unit 130 outputs comparison data 131 between the design value and the actual measurement value.

  Each display data of the three-dimensional CAD model 142 reflecting the design value and the three-dimensional CAD model 143 reflecting the actual measurement value includes the inspection device layout information 312, the net information 111, the design value 113 of the conduction resistance value, It is created based on the inspection result (measured value) 121 and the three-dimensional CAD model 214. A configuration example in this case is shown in FIG. FIG. 4 is a diagram illustrating a configuration example in a case where the data creation unit generates display data of a three-dimensional CAD model reflecting design values and a three-dimensional CAD model reflecting actual measurement values.

  The display unit 150 has a function of displaying various display data created by the data creation unit 140 on a screen in accordance with an operator's instruction. Display examples are shown in FIGS. FIG. 5 is a diagram showing a screen image of the display unit. FIG. 6 is a diagram showing an image in which wires and connectors that are electrically connected on the three-dimensional CAD model displayed on the screen of the display unit are highlighted. FIG. 7 is a diagram illustrating an example of a connection information list of design data displayed on the screen of the display unit. FIG. 8 is a diagram showing the connector layout-displayed on the three-dimensional CAD model displayed on the screen of the display unit, superimposed on the inspection apparatus layout.

  In FIG. 5, for example, an example is shown in which the display is divided into three parts, that is, the upper left of the screen, the upper right of the screen, and the entire lower part of the screen. In the example shown in FIG. 5, the connector and the wire to be electrically connected are highlighted on the upper left of the screen. This is extracted and shown in FIG. In the upper right of the screen, a connection information list 211 indicating the connection relationship between the connectors displayed in the upper left is displayed as a list. It is extracted and shown in FIG. The net information 111 is also displayed as a list in the same format at the upper left of the screen. In the lower part of the screen, an example is shown in which the connector highlighted on the three-dimensional CAD model is displayed over the inspection apparatus layout using the whole. It is extracted and shown in FIG.

  FIG. 5 shows that when an operator selects an arbitrary connection from the connection information list 211 displayed at the upper right of the screen of the display unit 150, the wire route and connection are displayed as shown at the upper left of the screen of the display unit 150. The related connector and the measurement result of the conduction resistance value are displayed on the three-dimensional CAD model, indicating that they can be viewed. The same applies to the net information 111. At this time, the difference in conduction resistance value can be displayed in different colors on the three-dimensional CAD model. In parallel, the absolute values of the measured value 121 of the conduction resistance measured by the inspection unit 120 and the design value 113 of the conduction resistance calculated by the connection information analysis unit 110 are displayed in different colors, and the measured value 121 The comparison results (131, 132, 133) between the design value 113 and the determination reference value 215 can be displayed in different colors.

  As a result, even in the case of a large-sized product harness having hundreds of connectors constituting the harness, it is possible to easily identify the defective part and quickly analyze the cause.

  Note that an existing harness inspection apparatus that performs a harness continuity inspection of a large product such as an artificial satellite includes an inspection unit 120 that performs a harness continuity inspection according to the connection list 114 and the automatic inspection procedure 112, and an inspection result (actual measurement) of the inspection unit 120. (Value) 121 is a form of an automatic inspection apparatus provided with the display part 150 displayed. Therefore, the inspection apparatus 100 according to the first embodiment can be considered as a configuration in which the connection information analysis unit 110, the inspection result comparison unit 130, and the data creation unit 140 are incorporated in the existing harness inspection apparatus.

Embodiment 2. FIG.
FIG. 9 is a block diagram showing a configuration in the case of creating a connection auxiliary diagram with the harness to be inspected as the second embodiment of the present invention. As shown in FIG. 9, the inspection apparatus 100 shown in the first embodiment (FIGS. 1 and 2) includes a net information 111, a connection list 114 between the apparatus and a harness, and an inspection apparatus layout. Using the information 312 and the three-dimensional CAD model 214, it is possible to adopt a configuration for creating the auxiliary connection diagram 144 with the harness to be inspected.

  According to this configuration, since the layout of the inspection apparatus 100 and the three-dimensional CAD model 214 are displayed side by side on the display screen of the display unit 150, the connection work between the inspection apparatus 100 and the harness can be assisted. . Therefore, even if the harness is a large product having several hundred connectors, the efficiency of the connection work can be improved.

Embodiment 3 FIG.
FIG. 10 is a block diagram showing a configuration when design analysis is performed as the third embodiment of the present invention. The inspection apparatus 100 shown in the first embodiment (FIGS. 1 and 2) can be used as a design data analysis apparatus in the design stage.

  Specifically, for example, as illustrated in FIG. 10, the data creation unit 140 determines that the net information 111 and the design value 113 analyzed by the connection information analysis unit 110 are the comparison results of the inspection result comparison unit 130. Based on the comparison data 133 between the reference value and the design value and the three-dimensional CAD model 214, the three-dimensional CAD model 142 reflecting the design value and the three-dimensional CAD model 141 reflecting the comparison result are used for the analysis of the design data. The display data can be created and displayed on the screen of the display unit 150.

  In the first embodiment, the harness inspection apparatus 100 includes a connection information analysis unit 110, an inspection result comparison unit 130, a data creation unit, in addition to the inspection unit 120 and the display unit 150 corresponding to an existing harness inspection device. 140 is included in one housing, but the harness inspection apparatus 100 includes a connection information analysis unit 110, an inspection result comparison unit 130, and an inspection result comparison unit 130 outside the housing of the inspection unit 120 corresponding to the existing harness inspection device. The data creation unit 140 and the display unit 150 may be arranged.

  As described above, according to the first and second embodiments, a new connection information analysis unit, an inspection result comparison unit, and a data creation unit are newly incorporated into an existing harness inspection apparatus, thereby providing a three-dimensional CAD. On the model, it is possible to display a comparison result with an actual measurement value and a design value of the harness continuity inspection and a determination reference value used for determination of pass / fail of the inspection. In addition, since the connection corresponding to the inspection apparatus layout diagram can be clearly displayed, it is possible to shorten the time for identifying the cause when the inspection result is unsuccessful, and to realize the work efficiency. Further, in the inspection preparation work, it can be expected that the connection work between the inspection apparatus and the harness can be made more efficient.

  In addition, as shown in the third embodiment, since it can be used as a design data analysis device, it is possible to confirm a connection portion having a high resistance value in advance on a three-dimensional CAD model even in design examination work. It can be expected to prevent return to design.

  As described above, the harness inspection apparatus according to the present invention is useful as a harness inspection apparatus that can efficiently perform the harness continuity inspection of large products such as artificial satellites.

DESCRIPTION OF SYMBOLS 100 Harness inspection apparatus 110 Connection information analysis part 111 Net information 112 Automatic inspection procedure 113 Design value 114 Connection list of apparatus and harness 120 Inspection part 121 Inspection result (actual measurement value)
130 Inspection result comparison unit 131 Comparison data between design value and actual measurement value 132 Comparison data between determination standard value and actual measurement value 133 Comparison data between determination standard value and design value 140 Data creation unit 141 Three-dimensional CAD reflecting comparison result Model 142 Three-dimensional CAD model reflecting design values 143 Three-dimensional CAD model reflecting actual measurement values 144 Connection assistance diagram 150 Display unit 210 Design data 211 Connection information list 212 Connector information 213 Wire material information 214 Three-dimensional CAD model 215 Determination reference value 310 Inspection equipment data 311 Inspection device connection cable information 312 Inspection device layout information

Claims (7)

Analyzing the circuit information of the harness based on the design data and the inspection equipment data, the design value of the conduction resistance , the net information that is all circuit information of the electrically connected circuit, the connection list between the inspection device and the harness, A connection information analysis unit for creating an automatic inspection procedure;
An inspection unit for performing a continuity test of the harness based on the connection list created in the connection information analysis unit and the automatic inspection procedure;
An actual measurement value that is an inspection result of the inspection unit, a design value created by the connection information analysis unit, and an inspection result comparison unit that compares the determination reference value included in the design data two by two;
Various data excluding the automatic inspection procedure created by the connection information analysis unit, three comparison results obtained by the inspection result comparison unit, inspection device layout information included in the inspection facility data, Using the three-dimensional CAD model included in the design data, the design value created by the connection information analysis unit and the three comparison results obtained by the inspection result comparison unit are reflected in the three-dimensional CAD model. A data creation unit for creating display data;
A harness inspection apparatus comprising: a display unit configured to display the display data on a screen. In a harness inspection apparatus comprising: an inspection unit that performs a continuity inspection of a harness based on a connection list of an inspection device and a harness and an automatic inspection procedure; and a display unit that displays an inspection result of the inspection unit on a screen.
Analyzing harness circuit information based on design data and inspection equipment data, design value of conduction resistance, net information which is all circuit information of electrically connected circuits, the connection list, the automatic inspection procedure, A connection information analysis unit for creating
An actual measurement value that is an inspection result of the inspection unit, a design value created by the connection information analysis unit, and an inspection result comparison unit that compares the determination reference value included in the design data two by two;
Various data excluding the automatic inspection procedure created by the connection information analysis unit, three comparison results obtained by the inspection result comparison unit, inspection device layout information included in the inspection facility data, Using the 3D CAD model included in the design data, the design value created by the connection information analysis unit and the 3 comparison results obtained by the inspection result comparison unit are reflected in the 3D CAD model. A harness inspection apparatus comprising: a data generation unit that generates display data that is displayed and displays the display data on the display unit instead of the inspection result of the inspection unit. In the display data created by the data creation unit,
The net information is displayed as a list on the screen of the display unit, and when an arbitrary connection is selected from the list display, it is related to the wire route and connection on the three-dimensional CAD model displayed on the screen. The harness inspection apparatus according to claim 1, wherein data for displaying a connector to be measured and a measured conduction resistance value are included. In the display data created by the data creation unit,
When the conduction resistance value indicated by the design value is displayed by color on the three-dimensional CAD model displayed on the screen of the display unit, the actual measurement value and the design value which are inspection results of the inspection unit are displayed on the three-dimensional CAD model. The harness inspection device according to claim 3, wherein data for displaying each absolute value is included. In the display data created by the data creation unit,
When the conduction resistance value indicated by the design value is displayed by color on the three-dimensional CAD model displayed on the screen of the display unit, the three comparison values obtained by the inspection result comparison unit are displayed on the three-dimensional CAD model. The harness inspection device according to claim 3, wherein data to be displayed is included. The data creation unit, as the display data,
Using the 3D CAD model included in the design data, the inspection device connection cable information and the inspection device layout information included in the inspection facility data, and the net information and the connection list created by the information analysis unit The harness inspection apparatus according to claim 1 or 2, wherein connection auxiliary diagram data for displaying a layout of the harness inspection apparatus and a three-dimensional CAD model side by side on the screen of the display unit is created. The data creation unit, as the display data,
Wherein the net information and design values created in the connection information analyzing unit, and the comparison result of the determination reference value contained in the design value and the previous SL design data obtained in the examination-results comparing part, the design data Using the 3D CAD model included in the data, create display data for 3D CAD models that reflect the comparison results and 3D CAD models that reflect the design values, which are used for design data analysis The harness inspection apparatus according to claim 1 or 2, wherein

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