JP4527709B2 - Drawing method of power system management drawing - Google Patents

Description

  The present invention relates to a method for drawing a power system management drawing based on drawing information of a power system control system, and more particularly to a method for drawing an in-circuit division facility.

In the power system drawing management of the power business, there is known a power system drawing management method that mutually uses each data between the data of the power system management drawing used in the actual work site and the data of the control power system diagram. ing. (See Patent Document 1)
The power system drawing editing system shown in FIG. 1 stores and manages power system diagram data for control of distribution lines, control devices, power distribution devices, switches, and the like, and controls the wiring and devices. In addition, a drawing editing apparatus 2 is attached via a network, and a power system management drawing is drawn based on data (drawing information) stored in the power system control system 1.

The database of the power system control system 1 stores drawing information (power lines (lines), equipment (symbols), maps, etc.) for displaying control power system diagram data on the display device 1a of the power system control system.・ It is managed.
The drawing editing apparatus 2 acquires the drawing information (power line (line), facility (symbol), map, etc.) from the database of the power system control system 1 and draws a power system management drawing based on the drawing information. . However, because the drawing method is not the same between the control power system diagram displayed on the display device 1a of the power system control system and the power system management drawing, equipment (hereinafter referred to as symbol) or power line (hereinafter referred to as line) having different notations. To generate power system management drawing drawing information by replacing the power system management drawings for power system management drawings or adding information necessary for power system management drawings (such as symbols not displayed in the power system control system) Drawing power system management drawings.
For example, when the drawing editing apparatus 2 automatically draws the in-circuit division facility in the power system management drawing based on the drawing information acquired from the database of the power system control system 1, the power system management is performed for lines and symbols having different notations. After replacing with symbols and lines for drawings, a symbol for a control device (for example, a switch in an underground device) that is not displayed in the power system control system is placed near the symbol for an in-circuit division facility (for example, a high-voltage automatic cabinet). Newly added, drawing information of power system management drawing is generated.
Japanese Patent Application No. 2001-005384

However, in the power system management drawing automatically drawn by the conventional drawing method based on the drawing information acquired from the power system control system 1 in the drawing editing apparatus 2, the arrangement of symbols and lines is not appropriate, and correction by the operator is not possible. It was necessary.
In particular, when the in-circuit division facility in the power system management drawing is automatically drawn based on the drawing information acquired from the power system control system, the power system management drawing drawn by the conventional drawing method has a relationship with symbols and lines. It becomes a visually irrational drawing, and each time the operator looks at the power system management drawing displayed on the display device 2a of the drawing editing device 2, the input device 2b connected to the drawing editing device 2 automatically The drawn power system management drawing was corrected.

  Therefore, the power system management drawing drawing method according to the present invention solves the above-mentioned problems, eliminates the labor of the operator's correction work, and automatically creates a power system management drawing on which necessary information is drawn appropriately and rationally. The purpose is to draw.

  Accordingly, the present invention provides a drawing editing apparatus connected to a power system control system via a network in a method for drawing a power system management drawing based on drawing information acquired from the power system control system. The symbol shape boundary and connection point candidate (s) are set in advance for each symbol in the in-circuit division facility, and the symbols and lines of the drawing information obtained from the power system control system are used for the power system management drawing. A step of replacing with a symbol and a line, a step of extracting all lines connected to a symbol (target symbol) of an in-circuit division facility to which a new symbol is to be added, a reference point of the target symbol and each line The step of calculating the cut point by the symbol shape boundary and the connection point candidate do not overlap, and the reference point and the cut point are formed. Determining a connection point candidate having the smallest sum of angles formed by the minute and the line segment formed by the reference point and the connection point candidate as a connection point, adding a new symbol to the connection point, and a connection point And the step of correcting the line so as to pass through the reference point of the added symbol, drawing information for the power system management drawing is generated, and the power system management drawing is drawn.

  According to the present invention, when drawing the in-circuit division facility in the power system management drawing based on the drawing information acquired from the power system control system, the power system management drawing is replaced with symbols and lines for the power system management drawing. When drawing a power system management drawing by adding new symbols necessary for the system, the symbols and lines can be drawn at the optimum position, so that necessary information can be properly and rationally corrected without any correction by the operator. The drawn power system management drawing can be acquired.

  A method for drawing a power system management drawing according to the present invention will be described with reference to FIGS.

As shown in FIG. 1, the drawing method of the power system management drawing according to the present invention uses drawing information acquired from the power system control system 1 in the drawing editing apparatus 2 connected to the power system control system 1 via a network. Based on this, a power system management drawing is drawn.
That is, the drawing editing apparatus 2 generates drawing information of the power system management drawing based on the drawing information (power line (line), facility (symbol), map, etc.) of the power system control system 1, and Drawing information is generated and a power system management drawing is automatically drawn. The automatically drawn power system management drawing is displayed on the display device 2 a of the drawing editing device 2 or output to the printing device 3.

  Further, when drawing the power system management drawing by the drawing editing apparatus 2 based on the drawing information acquired from the power system control system 1, a power system diagram for control displayed on the display device 1a of the power system control system, and the power system Since the drawing method is not the same as that of the management drawing, the symbols and lines of the drawing information acquired from the power system control system are replaced with symbols and lines for the power system management drawing and are not displayed in the power system control system, but the power system management drawing Is added necessary information (symbols such as control devices not displayed in the power system control system).

FIG. 2 shows the equipment (symbol) in the drawing information of the power system control system and the equipment (symbol) in the drawing information of the power system management drawing.
Since the drawing method is not the same between the power system control system and the power system management drawing, different notations may be adopted for the same equipment (symbol) as shown in FIG.
In view of this, the drawing editing apparatus 2 stores and manages symbols and lines for power system management drawings in the database of the drawing editing apparatus 2, for example. Based on the database, the symbols and lines of drawing information acquired from the power system control system 1 are stored. Convert to power system management drawing notation.

  In the drawing method of the power system management drawing according to the present invention, when the symbol for the power system management drawing is stored and managed in the database of the drawing editing device 2, as shown in FIG. A symbol shape boundary and a plurality of connection point candidates are set in advance for each symbol in the in-circuit division facility symbol.

  In the present invention, the drawing editing apparatus 2 connected to the power system control system 1 via the network generates drawing information of the power system management drawing based on the drawing information acquired from the power system control system 1, In drawing the power system management drawing, as shown in the flowchart of FIG. 3, a step of replacing symbols and lines of the drawing information acquired from the power system control system with symbols and lines for the power system management drawing (step S1). A step of extracting all the lines connected to the symbols (target symbols) of the in-circuit division facility to which new symbols are to be added (step S2), depending on the reference points of the target symbols and the respective lines and symbol shape boundaries The step of calculating the cut point (step S3) and the connection point candidates do not overlap, and the reference point and the cut point are formed. A step of determining a connection point candidate that minimizes the sum of angles formed by the minute and a line segment formed by the reference point and the connection point candidate as a connection point (step S4), and a step of adding a new symbol to the connection point ( From the step S5) and the step of correcting the line so as to pass through the connection point and the reference point of the added symbol (step S6), drawing information for the power system management drawing is generated (step S7), and the power system management drawing is generated. Is drawn (step S8).

FIG. 4 exemplifies drawing information of the power system control system 1 and shows a multi-circuit facility which is one of in-circuit division facilities.
FIG. 4A shows a diagram of a multi-circuit facility displayed on the display device 1a of the power system control system. A symbol representing the multi-circuit facility and two lines connected to the symbol are shown. Is displayed.
The actual data (drawing information of the power system control system) is drawn so that two lines branch in the symbol as shown in FIG. 4B, and the branch point ( The symbols are arranged so that the reference point of the symbol matches the circuit branch point.
In the multi-circuit facility displayed on the display device 1a, the line drawn on the back side of the symbol (the dotted line portion shown in FIG. 4B) is hidden behind the symbol and cannot be seen, as shown in FIG. Two lines extend from the bottom of the symbol.

FIG. 5 is a diagram illustrating a drawing method of a power system management drawing according to the prior art.
When drawing the in-circuit section facility in the power system drawing based on the in-circuit section facility diagram (drawing information of the power system control system) shown in FIG. Replace with symbols and lines in system management drawings.
The figure shown to Fig.5 (a) replaces the symbol of a high voltage | pressure automatic cabinet with the symbol for electric power system management drawings. At this time, the symbol of the high voltage automatic cabinet is arranged (replaces the symbol) so that the reference point of the symbol to be replaced (high voltage automatic cabinet) matches the branch point (circuit branch point) of the two lines.

Further, when drawing the in-circuit section facility in the power system drawing based on the in-circuit section facility diagram (drawing information of the power system control system) shown in FIG. 4B, the power system is not displayed in the power system control system. Necessary information (symbols such as control devices not displayed in the power system control system) is added to the management drawing.
In the diagram shown in FIG. 5B, a symbol for an underground switch that has not been displayed on the display device 1a of the power system control system 1 is newly added in the vicinity of the symbol of the high-voltage automatic cabinet. is there. In the conventional drawing method, a new symbol such as a switch in the underground device is set in advance at a certain distance from the circuit branch point, and a new symbol is added.
Then, according to the drawing information of the power system management drawing generated based on the drawing information of the power system control system, as shown in FIG.

  However, the power system management drawing automatically drawn by the conventional drawing method is a drawing in which the relation between the symbol and the line is visually unreasonable due to the size of the symbol and the positional relation between the line and the symbol, as shown in FIG. Become.

For example, as shown in FIG. 6A, when the arrangement position of a newly added symbol is set to be arranged at a certain distance from the circuit branch point with reference to a relatively small symbol (see the left figure), A new symbol added in the vicinity of a symbol (target symbol) larger than the reference symbol overlaps the target symbol (see the right figure).
On the other hand, for example, as shown in FIG. 6B, the arrangement position of a newly added symbol is set to be arranged at a certain distance from the circuit branch point with reference to a relatively large symbol (see the left figure). ) A new symbol added in the vicinity of a target symbol smaller than the reference symbol is separated from the target symbol (see the right figure).

Further, when the arrangement position of the newly added symbol is set to be arranged at a certain distance from the circuit branch point, the new symbol added is added depending on the arrangement relationship between the target symbol and the line as shown in FIG. One of the symbols overlaps the target symbol.
Further, as shown in FIG. 6D, the added new symbols are overlapped due to the relationship with the line.

On the other hand, by adopting the drawing method of the power system management drawing according to the present invention, the drawing editing apparatus 2 connected to the power system control system 1 via the network also has the drawing information acquired from the power system control system. In addition, when the power system management drawing is automatically drawn, it is possible to draw a power system management drawing in which symbols and lines are drawn appropriately and rationally.
A method for drawing a power management drawing according to the present invention will be described with reference to FIGS.

When drawing the in-circuit section facility in the power system drawing based on the in-circuit section facility diagram (drawing information of the power system control system) shown in FIG. 4B, first, as in the prior art, the power system control system Are replaced with symbols and lines in the power system management drawing.
The diagram shown in FIG. 7A is obtained by replacing the symbol of the high-voltage automatic cabinet with the symbol for the power system management drawing. At this time, the symbol of the high voltage automatic cabinet is arranged (replaces the symbol) so that the reference point of the symbol to be replaced (high voltage automatic cabinet) matches the branch point (circuit branch point) of the two lines.
In the present invention, symbol shape boundaries (symbol outlines) and connection point candidates are set in advance for each symbol in the in-circuit division facility for the power system management drawing.

Next, in order to add necessary information (symbols such as control devices not displayed in the power system control system) that are not displayed in the power system control system but are not displayed in the power system control system, a circuit to which a new symbol should be added All the lines connected to the symbol (target symbol) of the internal division facility are extracted.
In order to newly add a symbol of an underground switch in the underground device that has not been displayed on the display device 1a of the power system control system in the vicinity of the symbol of the high voltage automatic cabinet, in the diagram shown in FIG. Two lines connected to the symbol (target symbol) of the automatic cabinet were extracted.
Then, based on the symbol shape boundary of the symbol (high voltage automatic cabinet) replaced for the power system management drawing and the extracted line, as shown in FIG. 7C, the cutting point by the line and symbol shape boundary is calculated. To do. In this embodiment, two cutting points (cutting point a and cutting point b) are calculated.

Subsequently, based on each calculated cutting point (cutting point a, cutting point b) and a plurality of connecting point candidates set in advance in the symbol, the connecting point (connecting point a ′, connecting point b ′) is determined. decide.
As shown in FIG. 8 (a), at each cutting point (cutting point a, cutting point b), the angle formed by the line segment formed by the reference point and the cutting point, and the line segment formed by the reference point and the connection point candidate. Connection point candidates with the smallest sum (non-overlapping connection point candidates) are selected and determined as connection points (connection point a ′ and connection point b ′), respectively.

Thereafter, as shown in FIG. 8B, the target symbol (high voltage automatic cabinet symbol) is arranged so that a new symbol (symbol of the switch in the underground device) circumscribes the connection point determined from the connection point candidates. ) Is added a new symbol (a symbol of an underground switch).
Further, as shown in FIG. 8C, the two lines extending from the circuit branch point are corrected so as to pass through the connection point and the reference point of the newly added symbol.

As a result, as shown in FIG. 8 (d), a new symbol (symbol of the underground switch in the underground device) is added and added at an optimal position with respect to the target symbol (symbol of the high-voltage automatic cabinet). The drawing information of the power system management drawing in which the line is drawn appropriately and rationally for the new symbol (symbol of the switch in the underground device) can be generated.
And as shown in FIG.8 (e), the electric power system management drawing by which the line was drawn appropriately and rationally can be acquired.

  Next, with reference to FIG. 9 and FIG. 10, a method for determining a connection point from among connection point candidates preset in the symbols for the power system management drawing will be described in detail.

  As shown in FIG. 7C, when two cutting points (cutting point a and cutting point b) are calculated on the target symbol, one connection point candidate is selected from the connection point candidates based on the cutting point a. At the same time, one connection point candidate is selected from the connection point candidates based on the cutting point b, and two connection points (connection point a ′ and connection point b ′) are determined. Note that the connection point candidates selected at each cutting point (cutting point a, cutting point b) do not overlap, and the angle between the line segment formed by the reference point and the cutting point and the line segment formed by the reference point and the connection point candidate is the same. Connection point candidates with the smallest sum are determined as connection points (connection point a ′ and connection point b ′), respectively.

For example, as shown in FIG. 9A, based on the cutting point a, a line segment (vector Oa) formed by the reference point O of the symbol and the cutting point a, and a connection point candidate A formed by the reference point O of the symbol. In addition to obtaining the angle θ formed by the line segment (vector OA), similarly, the angle θ is obtained based on the cutting point b, and a combination (two non-overlapping connection point candidates) having the smallest sum of the angles θ is searched. By doing so, a connection point (connection point a ′, connection point b ′) is determined from the connection point candidates.
A calculation formula for calculating an angle θ formed by a line segment formed by the symbol reference point O and the cutting point a (vector Oa) and a line segment formed by the symbol reference point O and the connection point candidate A (vector OA) is as follows. It is shown in Equation 1. Similarly, the angle θ based on the cutting point b is also calculated.

However, the angle θ formed between the line segment formed by the reference point of the symbol and the cutting point and the line segment formed by the reference point and the connection point candidate is actually calculated (see Equation 1), and each cutting point (cutting point a, Searching for a combination (two non-overlapping non-overlapping connection point candidates) that minimizes the sum of the angles θ at the cutting point b) requires a large amount of calculation and takes time to calculate.
Therefore, in the present invention, in order to reduce the amount of calculation for determining the connection point and speed up the processing, instead of calculating the angle θ, the difference between the connection point candidates at each cutting point (cutting point a, cutting point b). The size of the vector (the square of the size of the difference vector) is obtained, and a combination (two candidate connection points that do not overlap) having the smallest sum of the magnitudes of the difference vectors is searched, and the connection point (connection point a ′, Connection point b ') was determined.

As shown in FIG. 9B, based on the cutting point a, a line segment (vector Oa) formed by the symbol reference point O and the cutting point a, and a line segment formed by the symbol reference point O and the connection point candidate A. The magnitude of the difference vector (vector aA) formed by (vector OA) is obtained. For simplification of calculation, the square L (the square of the distance between the connection point and the connection candidate point) of the difference vector of the connection candidate point at each cut point (cut point a, cut point b) is calculated.
The size of the difference vector (vector aA) formed by the line segment (vector Oa) formed by the symbol reference point O and the cut point a and the line segment formed by the symbol reference point O and the connection point candidate A (vector OA). Formula 2 for calculating the square L is shown in Formula 2. Similarly, the square of the magnitude of the difference vector based on the cutting point b is also calculated.

With reference to FIG. 10, a method for substituting the size of a difference vector and determining a connection point from among connection point candidates will be described.
As shown in FIG. 10A, the magnitude of the difference vector of the connection point candidate at the cut point a (the square of the distance between the cut point a and the connection point candidate) is obtained, and as shown in FIG. After obtaining the size of the difference vector of the connection point candidate at the cut point b (the square of the distance between the cut point b and the connection point candidate), as shown in FIG. 10C, the size of the difference vector at each cut point The connection point (connection point a ′, connection point b ′) is determined from among the connection point candidates by searching for a combination (two non-overlapping connection point candidates) that minimizes the sum of the two.
That is, a combination that extracts difference vectors at each cutting point (cutting point a, cutting point b) so that the connection point candidates do not overlap (the end points of the vectors are different) and minimizes the sum of the magnitudes of the difference vectors. Search for (two non-overlapping candidate connection points) and determine a connection point (connection point a ′, connection point b ′). By substituting the size of the difference vector, rather than actually calculating the angle θ between the line segment formed by the reference point and the cutting point and the line segment formed by the reference point and the connection point candidate, and searching for the connection point The amount of calculation can be reduced and the processing speed can be increased.

It is a figure explaining the structure of an electric power system drawing editing system. It is a figure which illustrates the symbol in an electric power system control system and an electric power system management drawing. It is a flowchart which shows the drawing method of the electric power system management drawing by this invention. It is the figure which illustrated drawing information of an electric power system control system. It is a figure explaining the drawing method of the electric power system management drawing by a prior art. It is a figure which shows the drawing information of the electric power system management drawing produced | generated with the conventional drawing method. It is FIG. 1 explaining the drawing method of the electric power system management drawing by this invention. It is FIG. 2 explaining the drawing method of the electric power system management drawing by this invention. It is FIG. 1 explaining the determination method of a connection point. It is FIG. 2 explaining the determination method of a connection point.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Power system control system 1a Display apparatus 2 Drawing editing apparatus 2a Display apparatus 2b Input apparatus 3 Printing apparatus

Claims (2)

In-circuit division facility for power system management drawings in which symbol shape boundaries and connection point candidates (multiple) are set in advance for each symbol in drawing editing apparatus (2) connected to power system control system (1) via a network In a drawing apparatus for drawing a power system management drawing based on drawing information acquired from the power system control system using the symbol of
Replacement means for replacing symbols and lines of drawing information acquired from the power system control system with symbols and lines for power system management drawings;
A line extracting means for extracting all lines connected to the symbols (target symbols) of the in-circuit division equipment to which new symbols should be added;
A cutting point calculating means for calculating a cutting point by a reference point of the target symbol and each line and a symbol shape boundary;
The connection point candidate that does not overlap and that has the smallest sum of the angles formed by the line segment formed by the reference point and the cut point and the line segment formed by the reference point and the connection point candidate is cut from the reference point. Connection point candidate determining means for determining whether or not the sum of the vector of a point and the difference vector of the vector from the reference point to the connection point candidate is the smallest, and determining the connection point candidate as a connection point When,
A symbol adding means for adding a new symbol to the connection point;
Line correction means for correcting the line so as to pass through the connection point and the reference point of the added symbol;
A drawing apparatus for drawing a power system management drawing. In-circuit division facility for power system management drawings in which symbol shape boundaries and connection point candidates (multiple) are set in advance for each symbol in drawing editing apparatus (2) connected to power system control system (1) via a network In a method of drawing a power system management drawing based on drawing information acquired from the power system control system using the symbol of
A step in which the drawing editing device (2) replaces the symbols and lines of the drawing information acquired from the power system control system with symbols and lines for power system management drawings;
A step in which the drawing editing device (2) extracts all lines connected to the symbols (target symbols) of the in-circuit division equipment to which new symbols are to be added;
The drawing editing device (2) calculating a reference point of the target symbol and a cutting point by each line and a symbol shape boundary;
The drawing editing apparatus (2) has a connection point candidate in which the connection point candidates do not overlap and the sum of the angles formed by the line segment formed by the reference point and the cut point and the line segment formed by the reference point and the connection point candidate is the smallest. Is determined based on whether the sum of the magnitudes of the difference vectors between the vector from the reference point to the cut point and the vector from the reference point to the connection point candidate is the smallest, and the connection point candidate is determined as a connection point. And determining the process as
The drawing editing device (2) adding a new symbol to the connection point;
A step in which the drawing editing device (2) corrects the line so as to pass through the connection point and the reference point of the added symbol;
The drawing method of the electric power system management drawing characterized by including.

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