JP2005148832A - Wiring diagram preparing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically perform the check operation of an overall wiring diagram related with the wiring diagram preparation of electric wiring for an automobile, particularly, a discovery technology of erroneous wiring. <P>SOLUTION: A plurality of partial wiring diagrams are displayed on a picture, and current directions are displayed with arrows for those respective partial wiring diagrams, and the displayed partial wiring diagrams are connected to one another on a display picture so that an overall wiring diagram can be displayed. New current channels which do not exist in the partial wiring diagrams are generated in the overall wiring diagram, and the current directions are newly displayed with arrows in the overall wiring diagram. The branch or nodes of the overall wiring diagram are extracted, and as for parts where the displayed arrows are faced to one another, the current channels assuming that currents equivalent to one of those arrows do not exist are displayed. The displayed current channels are compared with the arrows displayed in the partial wiring diagrams, and when the current channels to any direction other than the current directions shown by the arrows of the partial wiring diagrams exist, the current channels are warning-displayed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is used for creating a wiring diagram of electric wiring for automobiles. In particular, it relates to a technique for detecting miswiring.

  In an automobile, for example, an electric circuit for lighting lamps, an electric circuit for collecting and displaying information of various sensors, an electric circuit for controlling fuel injection of an engine, and an electric circuit for controlling a brake A wide variety of electric circuits such as circuits, electric circuits for car navigation systems, electric circuits for AV equipment, and electric circuits for ETC are mounted.

Since such electric circuits have different technical fields, it is difficult to comprehensively research and develop all electric circuits, and research and development is performed in each field.
Japanese Patent Laid-Open No. 3-6041

  The electric circuits developed separately for each field are finally collected as one electric circuit. During this aggregation operation, the electric circuits are electrically coupled. In this aggregation work, parts and wiring are omitted as much as possible (see, for example, Patent Document 1). Thereby, for example, one electric component may be commonly used in a plurality of electric circuits.

  FIG. 10 is a diagram showing examples of two different partial wiring diagrams. The switch (SW) # 1 in the partial wiring diagram A is for energizing the load # 1 and the other ECU (electronic control circuit) # 1 for the engine. On the other hand, the switch # 2 in the partial wiring diagram B energizes only the load # 1. According to this, since the partial wiring diagrams A and B share the load # 1, both the switches # 1 and # 2 can drive the load # 1.

  Combining these two different partial wiring diagrams results in an overall wiring diagram shown in FIG. At this time, under a certain condition (load # 1 side resistance value> ECU # 1 resistance value), current sneaking occurs differently from the partial wiring diagram shown in FIG. This current wraparound is shown by a one-dot chain line in FIG. As shown in FIG. 11, a current flows around ECU # 1, which should be unrelated to the operation of switch # 2, as indicated by the alternate long and short dash line in accordance with the operation of switch # 2. FIG. 12 is an overall wiring diagram in which measures against such current wraparound are taken. As shown in FIG. 12, by inserting a diode, current wraparound due to operation of switch # 2 is prevented.

  As described above, the electric circuit may not operate normally only by simply combining different partial wiring diagrams. Therefore, it is necessary to carefully check the combined entire wiring diagram. Conventionally, an engineer with specialized knowledge has spent a considerable amount of time performing this check work. For this reason, it took a long time from the completion of the partial wiring diagram in each field to the creation of the entire wiring diagram.

  The present invention has been carried out against such a background, and it is an object of the present invention to provide a wiring diagram creation apparatus capable of automatically checking the entire wiring diagram.

  The wiring diagram creation apparatus of the present invention displays a plurality of partial wiring diagrams on the screen, displays the current direction for each partial wiring diagram with an arrow, and displays the displayed partial wiring diagrams on the display screen. To display the entire wiring diagram. Since a new current flow path that does not exist in the partial wiring diagram is generated in the entire wiring diagram, the current direction is again displayed on the entire wiring diagram by an arrow. A branch or nodal point of the entire wiring diagram is extracted, and a current flow path is displayed when it is assumed that there is no current corresponding to any one of the arrows. This current flow path is compared with the arrow displayed on the partial wiring diagram, and when there is a current flow path in a direction other than the current direction indicated by the arrow of the partial wiring diagram, the current flow path is displayed as an alarm. To do.

  As a result, the check process of the entire wiring diagram can be automated, so that the check period can be shortened and labor can be saved.

  That is, the first aspect of the present invention is a wiring diagram creation apparatus, and the feature of the present invention is that a partial wiring diagram display means for displaying a plurality of partial wiring diagrams and a current for each of the partial wiring diagrams. A first arrow display means for displaying the direction with an arrow; a means for displaying the entire wiring diagram by combining the plurality of partial wiring diagrams displayed by the partial wiring diagram display means on a display screen; Second arrow display means for displaying the current direction with an arrow in the overall wiring diagram displayed by the means for displaying the entire wiring diagram, and a branch or nodal point of the overall wiring diagram is extracted and the second arrow display means For the portion where the displayed arrow is opposite, the current flow path is displayed by means of assuming that there is no current corresponding to one of the arrows, and the current flow path display means. The current flow path is compared with the arrow displayed on the partial wiring diagram, and when there is a current flow path in a direction other than the current direction indicated by the arrow of the partial wiring diagram, the current flow path is displayed as an alarm. And is equipped with means.

  The means for displaying an alarm includes, for example, a means for displaying the arrow displayed in the current flow path to be displayed with an alarm in a blinking display or a color different from the arrow at a normal location. Alternatively, there is provided means for displaying a predetermined symbol, figure, or character in the current flow path to be alarm-displayed in a blinking display or a color different from the arrow at the normal location.

  In the latter case, it is possible to automatically write a predetermined symbol, figure or character at a location where a current wraparound on the overall wiring diagram should be displayed as an alarm. For example, the predetermined symbol is a diode symbol. According to this, as an operator's work, it is only necessary to finally check whether there is an error in the position and orientation of the diode symbol automatically written by the wiring diagram creation device. The trouble of inserting the diode symbol can be saved.

  A second aspect of the present invention is a program, and the feature of the present invention is that a partial wiring diagram display function for displaying a plurality of partial wiring diagrams on an information processing device by installing the program on the information processing device. A first arrow display function for displaying the current direction with an arrow for each of the partial wiring diagrams, and the plurality of partial wiring diagrams displayed by the partial wiring diagram display function coupled to each other on a display screen. A function for displaying the whole wiring diagram, a second arrow display function for displaying the current direction with an arrow in the whole wiring diagram displayed by the function for displaying the whole wiring diagram, and a branch or node of the whole wiring diagram. For the portion where the arrows that are extracted and displayed by the second arrow display function face each other, the current flow path when it is assumed that there is no current corresponding to one of the arrows is displayed. Current flowing in the direction other than the current direction indicated by the arrow of the partial wiring diagram by comparing the current channel displayed by the function of displaying the current flow channel and the arrow displayed in the partial wiring diagram. A function corresponding to a wiring diagram creation device having a function of displaying an alarm for the current flow path when the flow path exists is realized.

  As the function for displaying the alarm, for example, the function of displaying the arrow displayed in the current flow path to be displayed with an alarm in a blinking display or a color different from the arrow at the normal location is realized. Alternatively, the function of displaying a predetermined symbol, figure, or character in the current flow path to be alarm-displayed in a blinking display or a color different from the arrow at the normal location is realized. The predetermined symbol is, for example, a diode symbol.

  The third aspect of the present invention is the information processing apparatus-readable recording medium on which the program of the present invention is recorded. By recording the program of the present invention on the recording medium of the present invention, the information processing apparatus can install the program of the present invention using this recording medium. Alternatively, the program of the present invention can be directly installed on the information processing apparatus via a network from a server holding the program of the present invention.

  Accordingly, it is possible to realize a wiring diagram creation device that can automatically check the entire wiring diagram using a general-purpose information processing device.

  According to the present invention, the entire wiring diagram can be checked automatically, so that the check period can be shortened and labor can be saved.

(First Example)
The configuration of the wiring diagram creation apparatus according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram of the wiring diagram creation apparatus of this embodiment.

  As shown in FIG. 1, the wiring diagram creation apparatus of this embodiment includes a display unit 1 that displays a plurality of partial wiring diagrams, and a current direction specifying unit 2 that displays current directions by arrows for each partial wiring diagram. And a general wiring diagram creating unit 3 for displaying a general wiring diagram by combining a plurality of partial wiring diagrams displayed on the display unit 2 on the display screen. The current direction specifying unit 2 includes the general wiring diagram. Means for displaying the current direction as an arrow on the entire wiring diagram displayed by the creating unit 3 is extracted, and a branch or nodal point of the entire wiring diagram is extracted and the portion displayed by the current direction specifying unit 2 is opposed to that Displayed on the current flow path and the partial wiring diagram displayed by the means for displaying the current flow path when it is assumed that there is no current corresponding to one of the arrows, and the current flow path display means Compare with the arrow When the current flow path in a direction other than the current direction indicated by an arrow of the partial wiring shown here with exists characterized by comprising a sneak current determination unit 4 and means for alarm display the current channel.

  In the partial wiring diagram storage unit 5, a plurality of partial wiring diagrams A to D are inputted and stored. The plurality of partial wiring diagrams A to D are displayed on the display unit 1. A keyboard 6 and a mouse 7 are connected to the overall wiring diagram creation unit 3, and an operator operates the keyboard 6 or the mouse 7 while looking at a plurality of partial wiring diagrams A to D displayed on the display unit 1. These partial wiring diagrams A to D are combined to create one overall wiring diagram.

  Alternatively, when each partial wiring diagram A to D has previously described information for designating a connection location with another partial wiring diagram, the whole wiring diagram creation unit 3 automatically creates a plurality of partial wiring diagrams. A whole wiring diagram can be created by combining A to D. FIG. 2 is a diagram showing examples of two different partial wiring diagrams. FIG. 3 is a diagram showing an example of an overall wiring diagram obtained by combining the partial wiring diagrams shown in FIG. In the example of FIG. 2, the load # 1 is commonly described in the partial wiring portions A and B. In such a case, the overall wiring diagram creation unit 3 determines that the load # 1 is information for designating a connection location, and uses this information, and as shown in FIG. # 2 is connected in common.

  In addition to using a common component such as the load # 1 as information for designating a connection location, information for designating a connection location can be written by a symbol or a character when the partial wiring diagram creator is created. .

  The present invention can be implemented as a program that, when installed in a general-purpose information processing apparatus, causes the information processing apparatus to realize functions corresponding to the wiring diagram creation apparatus of the present invention. This program is recorded on a recording medium and installed in the information processing apparatus, or installed in the information processing apparatus via a communication line, so that the display unit 1, the current direction specifying unit 2, and the entire wiring are connected to the information processing apparatus. Functions corresponding to the diagram creation unit 3, the current wraparound determination unit 4, and the partial wiring diagram storage unit 5 can be realized.

  Next, the operation of the wiring diagram creation apparatus of this embodiment will be described.

  The creator of the partial wiring diagram stores the partial wiring diagram created by himself / herself in the partial wiring diagram storage unit 5. The partial wiring diagram storage unit 5 is connected to the terminal device of the creator of the partial wiring diagram by, for example, a LAN, and the creator of the partial wiring diagram stores the partial wiring diagram completed from its own terminal device. Can be transferred to the unit 5.

  When a plurality of partial wiring diagrams A to D are stored in the partial wiring diagram storage unit 5, these partial wiring diagrams A to D are displayed on the display unit 1. At this time, the current direction specifying unit 2 displays the current direction with an arrow as shown in FIG. In partial wiring diagram A, the current passes through fuse # 1 and switch # 1, and is supplied to load # 1 and ECU # 1. In partial wiring diagram B, the current passes through fuse # 2 and switch # 2, and is supplied to load # 1.

  Subsequently, the overall wiring diagram creation unit 3 combines the partial wiring diagrams A and B to create the overall wiring diagram shown in FIG. The creation procedure at this time may be manually coupled by operating the keyboard 6 and mouse 7 as described above, or the entire wiring diagram creation unit 3 may be a common part of the partial wiring diagrams A and B. The load # 1 may be recognized as information designating the connection location of the partial wiring diagrams A and B and may be automatically combined. Since a new current flow path that does not exist in the partial wiring diagram is generated in the created overall wiring diagram, the current direction specifying unit 2 displays the current direction with arrows again in the entire wiring diagram.

  In this way, as shown in FIG. 3, an overall wiring diagram in which an arrow indicating the current direction is displayed is completed. The current wraparound determination unit 4 determines the current wraparound with respect to the entire wiring diagram. This determination procedure is shown in FIG. FIG. 8 is a flowchart showing the determination procedure of the current wraparound determination unit 4. The current wraparound determination unit 4 extracts a branch or nodal point of the overall wiring diagram shown in FIG. 3 and monitors the arrow direction (step S1).

  FIG. 4 is a diagram showing an arrow display example used in this embodiment. The display example of FIG. 4A is the same as the display example of FIG. A portion surrounded by a broken line is a branch point in the partial wiring diagram A, and arrows are opposed to each other. 4B is different from the display example of FIG. 4A, the current direction is equivalent to that of FIG. 4A. In the case of FIG. 4B, the portion surrounded by a broken line is a node between the partial wiring diagrams A and B, and the arrows meet at a right angle. In this case, however, it is defined as “opposite”. That is, the state in which the tip portions of the arrows meet is defined as the facing state. To explain the definition of the terms “branch point” and “node”, the branch point that originally exists in the partial wiring diagram is called “branch point”, and it appears newly when the partial wiring diagrams are joined together A branch point is called a “node”.

  FIG. 5 is a diagram showing a display example of arrows not used in the present embodiment. In the present embodiment, as shown in FIG. 5, the arrow is not displayed across the branch point or the node. The reason is that, in this case, it is impossible to define the state in which the tip portions of the arrows meet as the facing state.

  As a result of monitoring the arrow direction of the overall wiring diagram, when an opposing arrow is found (step S2), it is assumed that there is no current indicated by any one of the arrows as shown in FIG. 6 (step S3). As a result, the arrow from the switch # 2 disappears. The state of FIG. 6 is compared with the partial wiring portion A shown in FIG. 2 (step S4). When the arrow shown in FIG. 6 is compared with the arrow shown in the partial wiring diagram A of FIG. 2 and there is no arrow indicating a current flow path in a direction different from that of the partial wiring diagram A of FIG. Determine (step S5). Here, if a current sneak is found, the corresponding arrow blinks and an alarm is displayed (step S6). Or you may change and display the color of an arrow in the color (for example, red) which shows abnormality. Alternatively, the color of the arrow may be changed to a color indicating an abnormality and then blinked. In the example of FIG. 6, there is no sneak current.

  Subsequently, as shown in FIG. 7, it is assumed that there is no current indicated by the arrow in the opposite direction to the previous step (step S7). As a result, the arrow from the switch # 1 disappears. The state of FIG. 7 is compared with the partial wiring diagram B shown in FIG. 2 (step S8). Compared with the arrow shown in FIG. 7 and the arrow shown in the partial wiring diagram B of FIG. 2, there is an arrow indicating a current flow path in the direction toward the ECU # 1 different from the partial wiring diagram B of FIG. Is determined to be “present” (step S9). In this way, when a current sneak is found, the corresponding arrow blinks and an alarm is displayed (step S10). Or you may change and display the color of an arrow in the color (for example, red) which shows abnormality. Alternatively, the color of the arrow may be changed to a color indicating an abnormality and then blinked. In the example of FIG. 7, it has been found that the current passing through the switch # 2 is sneaking into the ECU # 1.

  When the operator finds an arrow that is blinking or displayed in red, the operator can easily recognize that a current wraparound has occurred. Therefore, as shown in FIG. 12, measures such as inserting a diode are taken. be able to.

(Second embodiment)
A second embodiment of the present invention will be described with reference to FIG. FIG. 9 is a view for explaining alarm display of the second embodiment. As a second embodiment, the current wraparound determination unit 4 includes means for displaying a diode symbol in a blinking display or a color different from an arrow in a current flow path to be displayed as an alarm.

  In the second embodiment, the current wraparound is automatically determined on the entire wiring diagram by the same procedure as the first embodiment, and the location where the current wraparound should be displayed as an alarm is specified. In the first embodiment, the arrow at the corresponding location is displayed blinking or an alarm is displayed in a color different from the arrow at the normal location. On the other hand, in the second embodiment, the diode symbol is blinked or displayed in a color different from the arrow at the normal location in the current flow path to be alarm-displayed.

  That is, it is possible to automatically write a diode symbol at a location where a current wraparound on the overall wiring diagram is to be displayed as an alarm. As a result, the operator only has to finally check whether there is an error in the position and orientation of the diode symbols automatically written by the wiring diagram creation device. It is possible to save the trouble of inserting.

  In addition to the diode symbol, a predetermined symbol, figure, or character can be set to be displayed in the same manner. For example, an X mark may be displayed on the current flow path to be displayed as an alarm, or characters such as “abnormal” or “around” may be displayed.

  Furthermore, a plurality of current sneaking patterns and corresponding alarm display patterns are taught to the wiring diagram creation device of this embodiment, and the alarm display pattern is changed according to the current sneaking pattern to change the symbol, figure or character to the entire wiring diagram. It is also possible to automatically write the current sneak in the place where an alarm should be displayed.

  According to the present invention, it is possible to automatically check the entire wiring diagram, so that it is possible to shorten the period from the completion of the partial wiring diagram to the completion of the entire wiring diagram and to save labor. This can contribute to shortening the automobile research and development period and reducing automobile manufacturing costs.

The block diagram of the wiring diagram creation apparatus of a present Example. The figure which shows the example of the partial wiring diagram of a present Example. The figure which shows the example of the whole wiring diagram of a present Example. The figure which shows the example of an arrow display used by a present Example. The figure which shows the example of an arrow display which is not used in a present Example. The figure for demonstrating the procedure for the current wraparound discovery of a present Example. The figure for demonstrating the procedure for the current wraparound discovery of a present Example, and the alarm display example of 1st Example. The flowchart which shows the determination procedure of the current wraparound determination part of a present Example. The figure for demonstrating the alarm display of 2nd Example. The figure which shows the example of the conventional partial wiring diagram. The figure which shows the example of the conventional whole wiring diagram and electric current wrap. The figure which shows the example of the whole wiring diagram which gave the current wraparound measure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display part 2 Current direction specific | specification part 3 Whole wiring diagram preparation part 4 Current wraparound judgment part 5 Partial wiring diagram storage part 6 Keyboard 7 Mouse

Claims (6)

Partial wiring diagram display means for displaying a plurality of partial wiring diagrams;
First arrow display means for displaying the current direction by an arrow for each partial wiring diagram;
Means for connecting the plurality of partial wiring diagrams displayed by the partial wiring diagram display means to each other on a display screen to display an entire wiring diagram;
A second arrow display means for displaying the current direction with an arrow on the overall wiring diagram displayed by the means for displaying the overall wiring diagram;
When it is assumed that there is no current corresponding to one of the arrows in the part where the branch or nodal point of the entire wiring diagram is extracted and the arrow displayed by the second arrow display means is opposite. Means for displaying the current flow path;
There is a current flow path in a direction other than the current direction indicated by the arrow in the partial wiring diagram by comparing the current flow path displayed by the means for displaying the current flow path with the arrow displayed in the partial wiring diagram. And a means for displaying an alarm on the current flow path.   2. The wiring diagram creation apparatus according to claim 1, wherein the alarm display means includes means for displaying the arrow displayed in the current flow path to be alarm-displayed in a blinking display or a color different from that of the normal arrow.   2. The wiring diagram creation device according to claim 1, wherein said alarm display means comprises means for displaying a predetermined symbol, figure, or character in a current flow path to be alarm-displayed in a blinking display or a color different from that of the arrow at a normal location. . By installing on an information processing device,
A partial wiring diagram display function for displaying a plurality of partial wiring diagrams;
A first arrow display function for displaying the current direction by an arrow for each partial wiring diagram;
A function of displaying the entire wiring diagram by mutually combining the plurality of partial wiring diagrams displayed by the partial wiring diagram display function on a display screen;
A second arrow display function for displaying the current direction with an arrow on the entire wiring diagram displayed by the function of displaying the entire wiring diagram;
When it is assumed that there is no current corresponding to one of the arrows in the part where the arrow or the node displayed by the second arrow display function is extracted and the branch or node of the whole wiring diagram is extracted. A function to display the current flow path;
There is a current flow path in a direction other than the current direction indicated by the arrow in the partial wiring diagram by comparing the current flow path displayed by the function of displaying the current flow path with the arrow displayed in the partial wiring diagram. A program characterized by realizing a function corresponding to a wiring diagram creation device having a function of displaying an alarm for the current flow path when performing the operation.   The program according to claim 4, wherein the function of displaying an alarm realizes a function of displaying the arrow displayed in the current flow path to be displayed with an alarm by blinking or a color different from that of the arrow at a normal location.   The program according to claim 4, wherein the function for displaying an alarm realizes a function of displaying a predetermined symbol, figure, or character in a current flow path to be displayed with an alarm in a blinking display or a color different from the arrow at a normal location.

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