JPH05189508A - Circuit diagram input device - Google Patents

Abstract

PURPOSE:To instantaneously confirm the changed area of a circuit diagram and at the same time to improve the reliability for inspection of the changed area. CONSTITUTION:The old revised circuit diagram data 104 include the unchanged data on the parts and the signals, and the new revized circuit diagram data 105 include the changed data on the parts and the signals respectively. A symbol setting means 107 gives the identification symbols to the parts end the signals shown in a circuit diagram. When a changed area is extracted based on those circuit diagram data, a changed area extracting means 108 compares both data 104 end 105 with each other and extracts the information on the changed parts and signals as the changed data. Then these changed data are outputted by a changed area output means 109 end then printed or displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a circuit diagram input device, and more particularly to
The present invention relates to a circuit diagram input device that extracts a changed portion between an existing circuit diagram and a modified circuit diagram.

[0002]

2. Description of the Related Art Today, circuit diagram input devices are widely used in the design of electronic circuits and the like. Such a circuit diagram input device is a device for designing a circuit diagram or a block diagram based on inputted circuit design data, using a component library or signal data stored in advance in the device.

FIG. 2 is a block diagram showing the configuration of a conventional circuit diagram input device. In the figure, 201 is a mouse or keyboard, and 202 is a control unit.
Is composed of software having the function of inputting / outputting / editing a circuit diagram. Reference numeral 203 denotes an apparatus main body, which includes a control unit 202 and a central processing unit (not shown) for executing the control unit 202. Further, 204 is the old version circuit diagram data, 205 is the new version circuit diagram data, and 206 is a parts library, which are stored in the auxiliary storage device. Further, 207 is a printing device such as a plotter, and 208
Represents a display device such as a CRT.

FIG. 3 shows a storage method for the old version circuit diagram data 204 and the new version circuit diagram data 205. That is, the old version circuit diagram data 204 and the new version circuit diagram data 205
Holds component information, connection information, and line information that form a circuit diagram. First, the component information is the component name of the component used in the circuit diagram, the component symbol indicating the identification of the component used in the circuit diagram, and the component mounting position coordinates (X coordinate, Y coordinate) in the circuit diagram. It consists of three items.
The connection information is composed of a connection pin name indicating a component pin number connected on the circuit diagram, and a signal name item indicating a connection relationship between this connection pin and another connection pin.
Further, in this case, the connection pin name has a part symbol, a part name, and a part pin number. The line information includes the signal name and the starting point coordinates (X coordinate,
It is composed of items of Y coordinate) and end point coordinates (X coordinate, Y coordinate).

The component library 206 stores component outline information and connection pin information. FIG. 4 is a diagram showing a storage system of the component library 206. First, the outer shape information of a part is composed of a part name, an outer size representing the size of the outer shape of the part (X direction, Y direction), and the number of pins forming the part. Also, the pin information of parts is
It is composed of items of component name, component pin number, and relative coordinates (X coordinate, Y coordinate) of the pin.

In the circuit diagram input device thus constructed, the circuit diagram revision work means the old version circuit diagram data 204.
Is added, and corrections such as addition, deletion, and change of parts, addition, deletion, and change of signals are performed on the transferred circuit diagram data. In this case, the circuit diagram input device is the keyboard 2
The control unit 202 is operated by the input from 01, the new version circuit diagram data 205 (here, the data transferred from the old version circuit diagram data) is transferred to the control unit 202, and the circuit diagram is displayed on the display device 208. Let Control unit 202
Has a function of adding, deleting, changing, transferring, moving parts, and adding, deleting, changing signals and the like. Further, each of these functions is displayed on the screen displayed on the display device 208.
The mouse 201 is used for selection and operation.

In each of the above-mentioned functions, first, the function of adding a component is to select and place a component from the circuit diagram library 206 at the relevant position to be added on the circuit diagram display screen by operating the mouse 201. At this time, the control unit 202
Is the part information and mouse 2 from the parts library 206.
The mounting position indicated by 01 is added to the component information of the circuit diagram data included in the control unit 202. At this time,
The part code is blank.

Next, the function of deleting a part is to delete a part on the circuit diagram display screen by pressing it with the mouse 201 to select it. At this time, the control unit 202 deletes the corresponding component information of the circuit diagram data in the control unit 202.

The component changing function is to change a component name by selecting a component on the circuit diagram display screen by operating the mouse 201 and inputting the component name to be changed on the screen. The parts changed here are compatible parts. For incompatible component conversion, delete a component and then add a new component. At this time, the control unit 202 fetches the component name from the component library 206 and changes the component information of the circuit diagram data in the control unit 202. However, the part code is not changed.

The part transfer function is to select a part to be transferred on the circuit diagram display screen by operating the mouse 201, input a corresponding place to be the transfer destination, and arrange the part. At this time, the control unit 202 changes the mounting position of the component information of the circuit diagram data in the control unit 202 to the coordinate of the transfer destination, and leaves the component symbol blank and adds it to the circuit diagram data on the control unit 202. .. Further, the component moving function is similar to that of the transfer, and the control unit 202 deletes the transfer destination part information.

Next, the function of adding a signal is to connect an unconnected component pin to an unconnected component pin on the circuit diagram display screen by operating the mouse 201 with an arbitrary number of signal lines. At this time, the control unit 202 adds the added connection pin name and the signal name to the connection information in the control unit 202, and notifies the control unit 202 of the signal name and the start and end coordinates of the line of the added signal. It is added to some line information. At this time, the signal name is given by the control unit 202 a symbol that does not overlap on the circuit diagram.

The signal deletion function is to delete the signal line on the circuit diagram display screen by operating the mouse 201. At this time, the control unit 202 deletes the corresponding connection pin name and signal name from the connection information in the control unit 202, and
The corresponding signal name and signal line are deleted from the line information in the control unit 202.

The signal change function is to connect a signal line on the circuit diagram display screen by operating the mouse 201 to connect the component pin that is not connected after the line is first deleted to the changed signal line. is there. At this time, the control unit 202
Changes the connection pin name of the connection information and the line position coordinate of the line information in the control unit 202 without changing the signal name. When the correction on the display device 208 is completed, the control unit 202 is operated by the mouse 201, and the control unit 20 is activated.
The circuit diagram data in 2 is moved to the new version circuit diagram data 205.

As described above, the work of correcting the circuit diagram by the circuit diagram input device is completed. Generally, after the circuit diagram is corrected, the changed portion of the circuit diagram is verified. In the verification in this case, the old version circuit diagram and the new version circuit diagram are output to the printing device 207 or the display device 208, and the changed portions are visually extracted. Printing device 207 and display device 20 for this circuit diagram
For output to 8, the control unit 202 is operated by the mouse / keyboard 201, and the control unit 202 outputs the old edition circuit diagram data 204 or the new edition circuit diagram data 205.
To the printing device 207 or the display device 208, respectively.
It was done by operating.

[0015]

However, in the above-mentioned conventional circuit diagram input device, since the changed portion of the circuit diagram is visually confirmed and verified, this verification requires a great deal of time, and a verification omission occurs. However, there was a problem that the reliability of verification was low. The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a circuit diagram input device in which a changed portion of a circuit diagram can be easily verified and which has high reliability.

[0016]

SUMMARY OF THE INVENTION A circuit diagram input device of the present invention is a symbol setting means for giving a symbol for identifying each component and signal to a component and a signal on the circuit diagram, and the symbol setting means. The old version circuit diagram data is compared with the new version circuit diagram data in which at least one of the parts and signals in the old version circuit diagram data is changed based on the symbols of each part and each signal set by A change point extracting means for extracting changed part and signal information as change data and a change data outputting means for outputting the change data extracted by the change point extracting means are provided. ..

[0017]

In the circuit diagram input device of the present invention, the old version of the circuit diagram data stores the data before the change of the parts and the signals, and the new version of the circuit diagram data stores the changed data. Further, the symbols and the signals on the circuit diagram are given by the symbol setting means for identification. When attempting to extract a changed portion in such circuit diagram data, the changed portion extracting means compares and collates the old version circuit diagram data and the new version circuit diagram data, and extracts changed component and signal information as change data. To do. Then, this change data is output by the change point output means, and is printed or displayed, for example. Therefore, the changed portion of the circuit diagram can be confirmed at a glance, and the reliability of the changed portion verification is high.

[0018]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a functional block diagram showing a circuit diagram input device of the present invention. The device shown in the figure is a mouse or keyboard 101, a control unit 102, a device main body 103, an old version circuit diagram data 104, a new version circuit diagram data 105, a parts library 106, a symbol setting means 107, and a changed portion extracting means 10.
8, a changed portion output unit 109, a printing device 110, a display device 111, changed portion data 112, and an old / new same signal name table 113.

Here, the mouse / keyboard 101, the parts library 106, the printing device 110, and the display device 111.
Is the conventional mouse / keyboard 201, component library 206, printing device 207, and display device 208 shown in FIG.
The detailed description is omitted here.

The feature of the present invention is that the device main body 103 has
Symbol setting means 107, changed portion setting means 108, changed portion output means 109, old / new same signal name table 1
13 is provided, the maximum value information of the part symbol is added to the old version circuit diagram data 104 and the new version circuit diagram data 105, and the change point data 112 is further provided.

The symbol setting means 107 has a function of giving a symbol for identifying each component and signal to each component and signal on the circuit diagram. The changed portion extraction means 108 is based on the symbols of each component and signal set by the symbol setting means 107, and the old version circuit diagram data 104.
And the new edition circuit diagram data 105 are compared and collated, and information of changed parts and signals (including addition, deletion, and change of parts and signals) is extracted as change data. The changed portion output means 109 has a function of outputting the changed data extracted by the changed portion extracting means 108 to the printing device 110 or the display device 111. Also,
The old / new same signal name table 113 is a table in which data of the same signal name as the old version circuit diagram data 104 and the new version circuit diagram data 105 is stored.

FIG. 5 shows a storage format in the old version circuit diagram data 104 and the new version circuit diagram data 105. As described above, the old version circuit diagram data 104 and the new version circuit diagram data 105 have the component information, the connection information, and the line information as in the conventional case, and also have the maximum value information of the component symbol. The maximum value information is automatically set by the symbol setting means 107 when a part is added or transcribed, and the automatic setting method is to add +1 to the value of the maximum value information before the addition or transcribing, and use this number. The part is set as the numerical part of the part symbol.

FIG. 6 shows a storage format of the changed portion data 112. That is, the changed portion data 112 holds the component change information, the signal change information, and the connection pin change information shown in (a), (b), and (c), respectively. First, the component change information is composed of items such as a component change classification, a component symbol, a deleted component name, and an additional component name. The change classification of parts is ADDART for added parts, and DE for deleted parts.
LPART and CHGPART for changed parts.
Further, the signal change information is composed of items of signal change classification and changed signal name. The change category of the signal is ADDSEG for the additional signal, DELSEG for the delete signal,
CHGSEG in the case of a change signal. Further, the connection pin information includes items of connection pin change classification and changed connection pin name. The connection pin change classification is ADDPIN for additional connection pins and DELPIN for deletion connection pins.

Next, the operation of the device of the present invention will be described by taking the new edition circuit diagram and the old edition circuit diagram after the circuit diagram revision work as an example.
7A and 7B are explanatory diagrams of circuit diagram conversion, in which FIG. 7A shows an old version circuit diagram and FIG. 7B shows a new version circuit diagram. In these figures, A, B, C, D, E, F and G are part names and SEG1.
-SEG7 is a signal name, and the number written inside the component is the component pin number. In order to improve the function, the revision work of this figure deletes the F part, adds the G part, changes the C part to a compatible D part with a low unit price, and sends a signal accompanying the change of these parts. Signal SE as change of
G1 is deleted, signal SEG5 is added, and connection of pin 1 of C component is made of connection of pin 3 of D component.

FIG. 8 shows the parts library 106 in this case.
Shows the internal format in (a) is the external information of the part,
(B) has shown the pin information of a component. Here, the outer shape information of the component represents the outer size of the component and the number of pins for each component. For example, the parts A, B, C, and D have the same outer size and the same number of pins, and the outer size is 4 × 7 and the number of pins is 14. Also, the component E,
G has the same outer size and the same number of pins, and its outer size is 4 × 9 and the number of pins is 16. Further, the component F has an outer size of 2 × 4 and has two pins. The reference coordinates of the parts are the coordinates of the lower left corner in the drawing. Further, the pin information of the component indicates relative coordinates with respect to the pin number of each component. Here, the relative coordinates are the coordinates of the tip of the pin. Therefore, for example, the relative coordinates of one pin of the component A are “−1” in the X coordinate and “1” in the Y coordinate with respect to the reference coordinates. Then, in the same manner, the relative coordinates with respect to the pin number of each component can be obtained.

In the revision work in the circuit diagram input device of the present embodiment, first, as a preparation, the part symbol in the old edition circuit diagram data 104 is automatically added, and the old edition circuit diagram data 1
04 is transferred to the control unit 102 to correct the circuit diagram. During the revision work, the symbol setting means 107 has a function of automatically setting the component symbol of the old version circuit diagram data 104 and a function of automatically setting the component symbol when the circuit diagram is modified. First, the function of automatic component symbol setting of the old version circuit diagram data 104 operates by operating the symbol setting means 107 from the mouse / keyboard 101.

In this part symbol automatic setting operation, the old version circuit diagram data 104 is moved to the control unit 102, and part symbols are given in the order of the part names in the part information.
The part symbol at this time is L and the number part, and the number part is 1,
The numbers are set to increase sequentially, such as 2, 3, .... The component symbol is input to the component information of the old version circuit diagram data in the control unit 102 and the component symbol item in the connection information. Furthermore, the maximum value of the numerical part of the part symbol is
It is entered in the item of the maximum value of the part symbol. Then, after setting these values, the old version circuit diagram data in the control unit 102 is returned to the old version circuit diagram data 104 in the auxiliary storage.

9 and 10 show the internal format of the returned old version circuit diagram data 104. As shown in FIG. Here, in FIG.
Shows the maximum value information of the part symbol, (b) shows the part information, (c) shows the connection information, and FIG. 10 shows the line information. The maximum value information ((a) in FIG. 9) of the part symbol described above indicates the maximum value of the part symbol, as described above.
Since it has five parts, its value is "5".
Further, the component information {(b) in FIG. 9} indicates the component symbol and the component mounting position for each component. The coordinates of this component mounting position are also the positions of the reference coordinates of each component. Furthermore, the connection information {(c) in FIG. 9} indicates which signal is connected to which pin of which component, for example, S
Since EG3 is connected to the parts B, C, and E, the connection pin names are three. And
The line information in FIG. 10 indicates the coordinates of the start point and the end point of each signal. Here, the start point and the end point are the start point and the end point of the line forming each signal. For example, in the case of SEG1,
Since it is composed of three lines, the X and Y coordinates of the start and end points of the three lines are shown.

Further, the part symbol automatic setting function at the time of modifying the circuit diagram operates when the function of adding / tranferring parts in the conventional circuit diagram input device is performed. As described above, this function is to add +1 to the maximum value of the number part in the maximum value information of the part symbol of the circuit diagram data, and set this number part as the number part of the part symbol. The operation other than the addition and transfer of parts is the same as the conventional one.

11 and 12 show the internal format of the modified circuit diagram data (new version circuit diagram data). Here, (a) of FIG. 11 shows the maximum value information of the part symbol, (b) shows the part information, (c) shows the connection information, and FIG. 12 shows the line information. Further, the maximum value information ((a) in FIG. 11) of the above-mentioned part symbol is obtained by adding 1 to the maximum value of the numeral part in the old version circuit diagram data 104, and therefore the value is “6”. .. Then, the component information {(b) of FIG. 11} indicates the component symbol and the component mounting position of the new version circuit diagram, as in the case of the internal format of the old version circuit diagram data 104, and the connection information {(c) of FIG. 11). } Indicates which pin each signal is connected to, as in the case of the internal format of the old version circuit diagram data 104. Further, the line information of FIG. 12 also indicates the coordinates of the start point and the end point of each signal in the new edition circuit diagram, as in the case of the internal format of the old edition circuit diagram data 104.

In this embodiment, after the revision work is completed,
The changed part output means 109 can output the information of the parts and signals changed by the changed part extraction means 108 to the printing device 110 or the display device 111. Further, the changed portion output means 109 can highlight the changed portion on the circuit diagram and print it by the printing device 110 or display it by the display device 111. Here, first, the function of the changed portion extracting means 108 will be described, and then, the changed portion outputting means 109.
I will explain the function of.

The changed portion extracting means 108 is operated by the mouse / keyboard 101, and the old edition circuit diagram data 104 and the new edition circuit diagram data 105 are transferred to the control unit 102 to detect the changed portion, and the result is changed portion data 112. Alternatively, it is output to the printing device 110. This change point extraction means 1
Reference numeral 08 has a method of detecting a changed portion for a component and a method of detecting a changed portion for a signal. Therefore, first, a method of extracting a changed portion for a component will be described, and then, a method of extracting a changed portion for a signal will be described.

FIG. 13 is a flowchart for extracting a changed portion for a part. First, from the part symbol in the part information of the old version circuit diagram data 104, the new version circuit diagram data 1
Search for the part symbol in the part information 05 (step S
1). If found (step S2), the part name in the part information of the old version circuit diagram data 104 is further compared with the part name in the part information of the new version circuit diagram data 105 (step S2). S3). If these are different (step S4), it is determined that the parts are changed parts, and the part symbol and the part name in the part information of the old version circuit diagram data 104 and the part name of the new version circuit diagram data 105 are respectively changed part data 112. Are input to the item of the part symbol, the old version part name, and the new version part name of the part information (step S5). The change classification of the parts at this time is input as CHGPART. If they are not different in step S4, the process directly proceeds to step S7 described later.

FIG. 14 shows the changed portion data 11 in this case.
2 shows the internal format. That is, the internal format is composed of part change information (a) indicating the change state of parts, signal change information (b) indicating the change state of signals, and connection pin information (c) indicating the change state of connection pins. Has been done.

When it is not found in step S2, the old version circuit diagram data 104 is regarded as a deleted part.
The part symbol and the part name in the part information are input to the part symbol and the old version part name in the part change information of the change location data 112 (step S6). The change category of parts at this time is DELPART. Next, the part symbol in the part information in the old version circuit diagram data 104 is searched for from the part symbol in the part information in the new version circuit diagram data 105 (step S7). Here, when it cannot be found (step S8),
As the additional parts, the part symbol and the part name in the part information of the new version circuit diagram data 105 are changed part data 11
The item name and the new edition part name in the item change information 2 are input (step S9). ADDART is input to the change classification of the parts at this time. Also, step S8
At, if it can be found, it ends as it is.

In the above embodiment, the old version circuit diagram data (shown in FIGS. 9 and 10) and the new version circuit diagram data (FIGS. 11 and 1).
2)), the part change information is output to the change part data 112 and printed by the printing device 110. This is the result shown in the component change information of FIG.

The changed portion for the signal is extracted by the following method. FIG. 15 is a flowchart of change extraction for a signal. First, the old version circuit diagram data 104
The connection pin name (here, the part symbol and the pin number) in the connection information of the new version circuit diagram data 105 is searched from the connection pin name (here, the part symbol and the pin number) in the connection information of (Step S1). If found (step S2), the signal name and connection pin name of the old version circuit diagram data 104 and the signal name of the new version circuit diagram data 105 are old and
Set in the new identical signal name table 113 (step S
3). If not found, step S described later.
Go to 4.

FIG. 16 shows the old / new identical signal name table 11
3 storage format, FIG. 17 shows old / new identical signal name table 1
It is a figure which shows the internal format of 13 concretely. That is, FIG.
When the connection pin name of the new version schematic data 105 (FIGS. 11 and 12) is searched from the connection pin name of the old version circuit diagram data 104 (FIGS. 9 and 10), the found signal name and connection pin name are displayed. Shows.

Next, from the signal names in the connection information of the old version circuit diagram data 104, the old / new same signal name table 113
The same signal name as the old version in the is searched for (step S4). Here, if the signal cannot be found (step S5), it is determined that the signal is a deletion signal, the signal modification information of the modification data 112 is set as the signal modification section as DELSEG, and the undiscoverable signal name is input (step S6). Further, all connection pin names (part number, part pin number) for the corresponding signal name in the old version circuit diagram data 104 are changed data 1
Input the connection pin name in the 12 connection pin change information. The connection pin category at this time is DELPIN.

If it is found in step S5, the connection pin name in the old / new identical signal name table 113 is searched for from the connection pin name in the connection information of the old version circuit diagram data 104 (( Step S7), where
If it cannot be found (step S8), the connection pin name in the connection information of the old circuit diagram data 104 is regarded as the change signal, and the signal name item in the signal change information of the change location data 112 is set. Then, the missing connection pin name of the old version circuit diagram data 104 is input to the connection pin name item in the connection pin information of the change location data 112 (step S9). The change category of the signal at this time is CHGSEG, and the connection pin category is DELPIN. If found in step S8,
Since it is not a change signal, it will be described later in step S1.
Go to 0.

Next, in step S10, the new version identical signal name in the old / new identical signal name table 113 is searched for from the signal name in the connection information of the new version circuit diagram data 105. If it cannot be found here (step S1
1) Assuming that the signal is an additional signal, the signal name is input to the signal name item in the signal modification information of the modification location data 112, and the connection pin name of the corresponding signal name of the new version circuit diagram data 105 ( All of the part symbols and part pin numbers) are input to the connection pin name item in the connection pin information of the changed portion data 112 (step S12). The signal change classification at this time is ADDSEG, and the connection pin classification is ADDP.
Let it be IN. Further, if found in step S11, the connection pin name in the connection information of the new version circuit diagram data 105 is further changed to the old / new same signal name table 113.
The connection pin name in the box is searched (step S13). If it cannot be found here (step S14), it is determined that the signal is a changed signal, and the signal name in the new version circuit diagram data 105 is input to the item of the signal name in the signal change information of the changed portion data 112, and the new version is input. The connection pin name in the connection information of the circuit diagram data 105 is input to the connection pin name item in the connection pin information of the changed portion data 112 (step S15). In addition, the change category of the signal at this time is CHG
SEG, and the connecting pin classification is ADDPIN.

Then, the old version circuit diagram data 104 (FIG. 9,
10) and the new version circuit diagram data 105 (FIGS. 11 and 12)
Then, when the changed portion for the signal is extracted, the result as shown in the signal change information and the connection pin information in FIG. 14 is output to the changed portion data 112, and the printing device 110
Will be printed.

Next, the changed portion output means 109 will be described. The changed portion output means 109 is the mouse / keyboard 10
1. The old version circuit diagram data 104, the new version circuit diagram data 105, the parts library 106, and the changed part data 112 are transferred to the control unit, and the new and old circuit diagrams of the changed parts are output to the printing device 110, or It is displayed on the display device 111.

The old [new] version circuit diagram output function uses the changed portion data 112, the old version circuit diagram data 104 [new version circuit diagram data 105] and the parts library 106 as inputs.
To print or display the old [new] version schematic of the changed part. The parentheses describe the new version circuit diagram output function, and the same applies hereinafter.

Extraction of changed parts is expressed on the circuit diagram by the following method. FIG. 18 shows a flowchart for outputting the changed portion. First, the old version [new version] part name in the changed part information of the changed part data 112 is searched for from the part name in the part information of the old version circuit diagram data 104 [new version circuit diagram data 105] (step S1).
If it can be found here (step S2), the outline of the part is set to a thick line (step S3), and if it cannot be found (step S2), the outline of the part is set to a solid line (step S4). The result is printed or displayed on the display device 111. FIG. 19 is a diagram showing an example thereof.

The changed portion of the signal is expressed on the circuit diagram by the following method. That is, in step S5, the signal name of the signal change classification of the changed portion data 112 is searched for from the signal name in the connection information of the old version circuit diagram data 104 [new version circuit diagram data 105] as DELSEG [ADDSEG]. Here, if found (step S6),
All lines for the corresponding signal in the line information of the old [new] version of the circuit diagram data are set as dotted lines [thick lines], and the process ends (step S7). If it is not found in step S6, in step S8, the signal name in the connection information of the old version circuit diagram data 104 [new version circuit diagram data 105] is in the signal information of the changed portion data 112. Look for a signal whose change category is CHGSEG. Here, if found (step S9), further changed by the connection pin name (here, the part symbol and the part pin number) in the connection information of the old [new] version circuit diagram data 104 [105]. The connection pin name in the connection pin information of the location data 112 is searched (step S10). Here, if it can be found (step S11), the line connected to this connecting pin is set as a dotted line [thick line] (step S).
12). If it cannot be found in step S11 or if it cannot be found in step S9, the signal line is set to a solid line (step S13), and the process ends.

FIG. 19A shows the old version circuit diagram data 10
4 (FIGS. 9 and 10) and the changed portion data 112 (FIG. 14) are input, and a circuit diagram as a result of operating the old version circuit diagram output function is shown. From this figure, the C and F parts are deleted, the signals SEG1 and SEG4 are deleted, and the signal SE
It can be seen that the connection pin in G3 has changed. Similarly, FIG. 19B is a circuit diagram as a result of operating the new version circuit diagram output function. From this figure, D parts and G parts are added, and signals SEG5 and SEG7 are added.
It can be seen that the connection pin in signal SEG6 has changed.

In the above embodiment, the symbol setting means 107
As a symbol given to each component and signal by using a combination of a component symbol “L and a number” and a signal name “SEG and a number”, it is not limited to this, and each component and each signal It can be any symbol that identifies the signal.

[0049]

As described above, according to the circuit diagram input device of the present invention, a symbol for identifying each component and signal is given, and the old version circuit diagram data and the new version are added based on this identification symbol. Compared with the schematic data, the changed parts and signal information is extracted and output, so the changed parts of the schematic can be easily confirmed and the verification is highly reliable. There is.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a circuit diagram input device of the present invention.

FIG. 2 is a block diagram of a conventional circuit diagram input device.

FIG. 3 is an explanatory diagram of a storage format of conventional circuit diagram data.

FIG. 4 is an explanatory diagram of a storage format of a parts library.

FIG. 5 is an explanatory diagram of a storage format of circuit diagram data in the circuit diagram input device of the present invention.

FIG. 6 is an explanatory diagram of a storage format of changed portion data in the circuit diagram input device of the present invention.

FIG. 7 is an explanatory diagram of a circuit diagram conversion example in the circuit diagram input device of the present invention.

FIG. 8 is an explanatory diagram of an internal format of a component library in the circuit diagram input device of the present invention.

FIG. 9 is an explanatory diagram (1) of the internal format of the old version circuit diagram data in the circuit diagram input device of the present invention.

FIG. 10 is an explanatory diagram (2) of the internal format of the old version circuit diagram data in the circuit diagram input device of the present invention.

FIG. 11 is an explanatory diagram (part 1) of the internal format of new version circuit diagram data in the circuit diagram input device of the present invention.

FIG. 12 is an explanatory diagram (part 2) of the internal format of the new version circuit diagram data in the circuit diagram input device of the present invention.

FIG. 13 is a flowchart when extracting a changed portion for a component in the circuit diagram input device of the present invention.

FIG. 14 is an explanatory diagram of the internal format of change point data in the circuit diagram input device of the present invention.

FIG. 15 is a flowchart for extracting a changed portion for a signal in the circuit diagram input device of the present invention.

16 is an explanatory diagram of a storage format of an old / new same signal name table 113 in the circuit diagram input device of the present invention. FIG.

FIG. 17 is an explanatory diagram of an internal format of the old / new same signal name table 113 in the circuit diagram input device of the present invention.

FIG. 18 is a flowchart for outputting a changed portion in the circuit diagram input device of the present invention.

FIG. 19 is an explanatory diagram of a changed portion extraction result in the circuit diagram input device of the present invention.

[Explanation of symbols]

 102 control section 104 old version circuit diagram data 105 new version circuit diagram data 106 parts library 107 symbol setting means 108 changed part extraction means 109 changed part output means 110 printing device 111 display device 112 changed part data 113 old / new same signal name table

Claims (1)

[Claims] 1. A symbol setting means for giving a symbol for identifying each component and signal to a component and a signal on a circuit diagram, and a symbol for each component and each signal set by the symbol setting means. Then, the old version circuit diagram data is compared with the new version circuit diagram data in which at least one of the parts and signals in the old version circuit diagram data is changed, and the changed part and signal information is extracted as change data. A circuit diagram input device, comprising: a change point extracting unit for changing the change point and a change data outputting unit for outputting the change data extracted by the change point extracting unit.