JP2008181412A - Guy design support system, guy design support method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a designer to easily know a residual unbalanced tension. <P>SOLUTION: A field terminal 10 acquires cable information for the calculation of tensions of cables attached to a utility pole from an equipment management server 20, and calculates tensions of the cables from the acquired cable information. The field terminal 10 accepts the input of bearings representing the attachment direction of the cables, and determines unbalanced tension vectors representing the attachment direction represented by the bearings and the tension of the cables. The field terminal 10 accepts the input of guy design information for the calculation of a strength of a guy, and calculates a strength of the guy from the guy design information. The field terminal 10 accepts the input of the installation direction of the guy, and determines a guy strength vector representing the installation direction and strength of the guy. The field terminal 10 combines the unbalanced tension vectors and the guy strength vector to calculate a residual unbalanced tension vector, and displays the calculated residual unbalanced tension vector. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a branch line design support system, a support design support method, and a program.

When non-average tension exists on the utility pole, it is necessary to install a branch line on the utility pole. Computer calculations have been proposed because of the complexity of calculations to determine specifications such as thickness and root spread required for branch lines. For example, Patent Document 1 presents a system that automatically recognizes the direction of a branch line of a utility pole from a map information system drawing.
Japanese Patent Laid-Open No. 08-83334

  However, in the system described in Patent Document 1, when a branch line having a thickness and direction designated by the designer is installed, it is impossible to check how much residual average tension that cannot be shared by the facility of the branch line. .

  The present invention has been made in view of such a background, and an object thereof is to provide a branch line design support system, a branch line design support method, and a program that allow a designer to easily check the residual average tension. To do.

  The invention according to claim 1 of the present invention for solving the above-mentioned problems is a system for supporting the design of a branch line installed on a utility pole, and calculates the tension of an overhead line stretched on the utility pole. A tension information input unit that receives input of tension information, a tension calculation unit that calculates the tension of the overhead wire based on the tension information, a direction information input unit that receives input of direction information relating to the direction in which the overhead wire is stretched, Based on the received direction information and the calculated tension, a non-average tension vector determination unit that determines the tension direction and the average tension vector indicating the tension of the overhead wire, and for calculating the strength of the branch line An intensity information input unit that receives input of intensity information of the apparatus, an intensity calculation unit that calculates the intensity of the branch line based on the intensity information, and a facility direction input that receives input of the facility direction of the branch line A branch line strength vector determining unit that determines a branch line strength vector indicating the facility direction and the strength of the branch line, and calculating a residual unaverage tension vector by combining the non-average tension vector and the branch line strength vector, A residual average tension display unit that displays the calculated residual average tension vector.

  According to the branch line design support system of the present invention, it is possible to display a residual average tension vector indicating the magnitude and direction of the residual average tension that cannot be shared by the facility of the branch line among the average tension applied to the overhead line. it can. Therefore, the branch line designer can refer to the residual non-average tension vector so that the branch line can be designed so that all the average tension can be shared.

  Moreover, invention of Claim 2 among this invention is a branch line design support system of Claim 1, Comprising: The said tension | tensile_strength is the weight per unit length of the said overhead wire stretched by the said utility pole. And the distance from the place where the utility pole is installed to the other utility pole connected by the overhead wire.

  Moreover, invention of Claim 3 among this invention is a branch line design support system of Claim 2, Comprising: From the equipment management server apparatus which manages the said weight per unit length of the said overhead wire, and the said utility pole The distance measuring device for measuring the distance to the other electric pole and the azimuth measuring device for measuring the azimuth from the electric pole to the other electric pole, and the tension information input unit is connected to the distance measuring device. The input of the distance is received, the input of the tension information is received by receiving the input of the weight from the facility management server device, the direction information input unit, the direction output from the direction measuring device, It will be accepted as the direction information.

  In this case, it is possible to acquire the weight of the overhead wire from the facility management server device that manages the facility and calculate the tension of each electric wire based on the acquired weight. Therefore, the tension of the electric wire can be accurately calculated. Moreover, the tension direction of the overhead wire can be measured at the installation site of the utility pole. Therefore, for example, even when the position of the utility pole is not managed by a map information system or the like, the direction in which the non-average tension is applied can be accurately calculated.

により前記張力Ｔ（ｋＮ）を算出することとする。 The invention according to claim 4 of the present invention is the branch line design support system according to claim 1, wherein the tension information includes the weight per unit length of the overhead wire and the utility pole. A distance to another power pole connected by an overhead wire, and the tension calculation unit calculates a predetermined slackness of the overhead wire as D (m) and a weight per unit length as W (kg / m ), Gravity acceleration is g (m / s ² ), and the distance is S (m).

Thus, the tension T (kN) is calculated.

  Moreover, invention of Claim 5 among this invention is a branch line design assistance system of Claim 1, Comprising: The said tension information input part receives the input of the said tension information about the said several overhead line, The tension calculating unit calculates the tension for each of the overhead lines, the direction information input unit accepts input of the direction information for each of the overhead lines, and the remaining average tension display unit is configured for each of the overhead lines. A tension vector indicating the tension and the tension direction is determined, and the determined average vector is calculated by combining all the determined tension vectors.

  In this case, the magnitude and direction of the non-average tension can be easily obtained by combining the tensions of a plurality of overhead lines by vector calculation.

により角度θを算出し、前記不平均張力ベクトルを所定方向にθ回転させた上で、前記支線強度ベクトルと合成することとする。 The invention according to claim 6 of the present invention is the branch line design support system according to claim 5, wherein the tension information includes a length of the overhead wire, and the overhead wire is stretched. A columnar information input unit that receives columnar information including the length of the armrest provided; the residual average tension display unit sets the length of the overhead wire to S (m) and the length of the armrest Where L (m) is

The angle θ is calculated by the following, and the non-average tension vector is rotated by θ in a predetermined direction and then combined with the branch line strength vector.

  In this case, the non-average tension can be obtained in consideration of the length of the arm bracket to which the overhead wire is attached. Therefore, more accurate non-average tension can be calculated. Therefore, the residual average tension can be calculated more accurately, and the designer can accurately design the branch line.

により角度θ_１を算出し、前記第１の張力ベクトルを所定方向にθ_１回転させ、式

により角度θ_２を算出し、前記第２の張力ベクトルを、前記第１の張力ベクトルの回転方向とは逆方向にθ_２回転させ、前記第１及び第２の張力ベクトルを合成することにより前記不平均張力ベクトルを算出することとする。 The invention according to claim 7 of the present invention is the branch line design support system according to claim 5, wherein the tension information includes a length of the overhead wire, and the overhead wire is stretched. A column information input unit that receives input of column information including the length of the armrest to be installed, and the tension information input unit includes the first and second tension information for the first and second overhead wires. When the direction information input unit receives input of the first and second direction information, the tension calculation unit calculates the tension for each of the first and second overhead wires. The residual average tension display unit determines the magnitude of the tension of the overhead line based on the first and second direction information and the calculated tension for each of the first and second overhead lines. And a tension vector indicating the direction, and the first tension Angle theta ₀ second of the tension vectors for inverse vector of the _vector, the length of the first overhead line S _{1 (m),} S ₂ the length of the second overhead line _(m), the cross-arm Where L (m) is the length of

To calculate the angle θ ₁ , rotate the first tension vector by θ ₁ in a predetermined direction, and

To calculate the angle θ ₂ , rotate the second tension vector by θ _{2 in the} direction opposite to the rotation direction of the first tension vector, and synthesize the first and second tension vectors. The non-average tension vector will be calculated.

  Moreover, invention of Claim 8 among this invention is a branch line design assistance system of Claim 1, Comprising: The tension | tensile_strength which is the height by which the said overhead wire is stretched is included in the said tension | tensile_strength information. The strength information includes a branch line mounting height that is a height at which the branch line is mounted, and the tension calculation unit is a quotient obtained by dividing the tension height by the branch line mounting height. A certain conversion coefficient is calculated, and a value obtained by multiplying the tension calculated based on the tension information by the conversion coefficient is calculated as the tension.

  In this case, the tension can be corrected according to the height at which the overhead wire or the branch line is attached. That is, it can be compared with the strength of the branch line using the tension converted by so-called moment synthesis. Therefore, a more accurate residual average tension can be calculated.

  The invention according to claim 9 of the present invention is the branch line design support system according to claim 1, further comprising a safety factor input unit that receives an input of a safety factor related to the design, wherein the tension calculation unit includes: The safety factor is multiplied by the tension calculated based on the tension information.

  Moreover, invention of Claim 10 among the present invention is the branch line design support system of Claim 1, Comprising: The said extension information input part mounted | worn with the fisheye lens in the place where the said utility pole is installed The input of image data captured by the camera device with the upper direction in the vertical direction as the imaging direction is received, and the first pole information indicating the position serving as a reference for the extending direction on the received image data and the utility pole by the overhead wire The second position information indicating the position of the other utility pole connected to is input as the direction information.

  Moreover, invention of Claim 11 among this invention is a branch line design assistance system of Claim 1, Comprising: The said residual unaverage tension display part calculates the reverse vector of the said unaverage tension vector, The calculated inverse vector is displayed.

  The invention according to claim 12 of the present invention is the branch line design support system according to claim 11, wherein the residual average tension display unit is a range obtained by rotating the direction of the inverse vector by a predetermined angle. Is displayed as a range in which the branch line is to be installed.

  Other problems and solutions to be disclosed by the present application will be made clear by the embodiments of the invention and the drawings.

  According to the present invention, the designer can easily check the residual average tension.

  Hereinafter, a branch line design support system according to an embodiment of the present invention will be described. The branch line design support system of the present embodiment is used when an electric power company moves a utility pole. When transferring utility poles, the utility poles installed at the destination (hereinafter referred to as “relocation utility poles”) are subject to unaverage tension due to the tension of the cable (overhead wire) to be stretched. A branch line is provided. The branch line design support system according to the present embodiment supports the design of the facility direction and root opening of such a branch line. In the present embodiment, it is assumed that a designer designs a branch line using a PDA, a portable notebook personal computer, or the like at the site where the transfer utility pole is moved.

  FIG. 1 is a diagram showing an overall configuration of a branch line design support system according to the present embodiment. As shown in the figure, the branch line design support system of the present embodiment is configured to include an on-site terminal 10 and an equipment management server 20. The on-site terminal 10 and the facility management server 20 are connected via a communication network 30 so that they can communicate with each other. The communication network 30 is, for example, a LAN (Local Area Network) or the Internet constructed by Ethernet (registered trademark) or a public telephone line network. In the present embodiment, it is assumed that the communication network 30 is the Internet using a mobile phone network.

  The facility management server 20 is a computer that manages information related to facilities related to the power system such as utility poles and electric wires (hereinafter referred to as facility information). The facility information includes, for example, the type of electric wire, the length of the utility pole, the span, the number of strips, the installation position of the electrical wire, the position of the existing utility pole, and the like.

  The site terminal 10 is a portable computer such as a PDA (Personal Digital Assistant), a mobile phone, a notebook personal computer, or a workstation, which is operated by a designer. As will be described later, the site terminal 10 accesses the equipment management server 20 via the communication network 30 and acquires equipment information such as the type, number of strips, and mounting position of the electric wires stretched on the power pole to be moved. The design of the branch line is supported by calculating the tension of the electric wire applied to the utility pole and displaying the non-average tension, the non-average tension shared by the branch line, and the like.

  FIG. 2 is a diagram illustrating a hardware configuration of the site terminal 10. As shown in the figure, the field terminal 10 includes a CPU 101, a memory 102, a storage device 103, a communication interface 104, an input device 105, a display device 106, and a measuring device 107. The storage device 103 is, for example, a hard disk drive or a flash memory that stores programs and data. The CPU 101 implements various functions by reading a program stored in the storage device 103 into the memory 102 and executing it. The communication interface 104 is an interface for connecting to the communication network 30. The communication interface 104 is, for example, an adapter for connecting to Ethernet (registered trademark), a network adapter for connecting to a wireless network, a modem for connecting to a public telephone line network, or the like. The input device 105 is a touch panel, a button, a keyboard, a mouse, or the like that accepts data input. The display device 106 is a display that displays data, for example. The measuring device 107 is, for example, a laser measuring instrument or a digital compass that measures the distance and azimuth from the current point of the site terminal 10 to the surrounding utility pole.

  FIG. 3 is a diagram showing a software configuration of the site terminal 10. As shown in the figure, the site terminal 10 includes a measurement information input unit 111, an electric wire information acquisition unit 112, a pillar information acquisition unit 113, a tension vector generation unit 114, an unaverage tension vector generation unit 115, and a branch line design information input unit. 116, a design support information output unit 117 is provided.

  The measurement information input unit 111 is measured using identification information (hereinafter referred to as a power pole name) of a power pole (hereinafter referred to as an adjacent power pole) connected to the relocated power pole by an electric wire, and a measuring device 107 such as a laser measuring instrument. Input of measurement information including the distance from the relocation point to the adjacent power pole and the direction from the relocation point to the adjacent power pole measured using the measuring device 107 such as a digital compass is accepted. The measurement information input unit 111 may read the distance and direction from the measurement device 107, or may receive the input of the distance and direction from the input device 105 such as a keyboard or a touch panel.

  A configuration example of the measurement information received by the measurement information input unit 111 is shown in FIG. As shown in the figure, the measurement information includes an adjacent column name, distance, and orientation. The adjacent pole name is the name of the adjacent utility pole. The distance is the distance from the relocation point to the adjacent utility pole. In the present embodiment, the distance included in the measurement information (that is, the distance between the utility poles) is used as the length of the electric wire stretched between the diameters. The azimuth is the azimuth from the relocation point toward the adjacent utility pole when north is 0 °. In the present embodiment, the designer stands at the relocation point and measures the distance and direction using the measuring device 107 such as a laser measuring instrument or a digital compass. However, the present invention is not limited to this, for example, the distance from the map information system. Or the direction may be acquired.

  FIG. 5 is a diagram illustrating an example of a screen 41 as a user interface used when the measurement information input unit 111 accepts input of measurement information. When a number is input to the adjacent power pole number input field 411, the screen 41 displays a power pole name input field 413, a distance display field 414, and an azimuth for each of the icons 412 indicating the number of adjacent power poles input. A display column 415 is displayed. The designer operates the input device 105 such as a keyboard or a touch panel to input the name of the adjacent power pole in the input field 413, and operates the touch panel or mouse to click the icon 412 to thereby determine the adjacent power pole to be measured. Is specified. The measurement information input unit 111 displays the distance and direction acquired from the measurement device 107 in the display fields 414 and 415 corresponding to the designated adjacent power pole. As described above, the measurement information input unit 111 receives input of measurement information.

  The electric wire information acquisition unit 112 acquires facility information (hereinafter referred to as electric wire information) related to the electric wire stretched on the relocation utility pole from the facility management server 20. The electric wire information acquisition unit 112 transmits, for example, a command for acquiring electric wire information in which a power pole name indicating a relocation utility pole is set to the equipment management server 20, and the electric wire information transmitted from the equipment management server 20 according to the command. Can be received. The structural example of the electric wire information which the electric wire information acquisition part 112 acquires is shown in FIG. As shown in the figure, the electric wire information includes the voltage classification, the wire type, the weight, the adjacent power pole name, the number of strips, and the attachment point of the electric wire. The weight is a weight per unit length of the electric wire (in this embodiment, 1 m). The adjacent power pole name is identification information of adjacent power poles connected by this electric wire. The number of strips is the number of wires that are stretched on the transfer utility pole. An attachment point is the height which attaches an electric wire to a transfer utility pole.

  FIG. 7 is a diagram illustrating an example of the display screen 42 for electric wire information. As shown in the figure, on the display screen 42, a display column 421 for displaying the distance and direction of adjacent power poles, a display column 422 for displaying a list of wire information acquired from the equipment management server 20, and a wire for the relocation utility pole And an attachment point display field 423 to which is attached. By referring to the screen 42, the designer can acquire information about the electric wire stretched on the transfer utility pole.

  The pole information acquisition unit 113 acquires information related to a brace that attaches an electric wire to the utility pole (hereinafter referred to as pole information) from the facility management server 20. A configuration example of the pillar information acquired from the facility management server 20 is shown in FIG. As shown in the figure, the pole information includes a pole name, a counterpart pole name, a pole pole, a brace length, and a protruding direction. The pole information is information indicating what kind of arm bracket the electric wire stretched from the first power pole indicated by the power pole name to the second power pole indicated by the counterpart power pole name is attached to the first power pole. For example, in the case of a horizontal arrangement, the armored column is one of “centering”, “one-way”, and “all-out”. Since the position where the electric wire is attached to the relocation utility pole is shifted from the position of the utility pole by the length of the armrest, in the branch line design support system of this embodiment, the tension direction is set to the length of the armrest as will be described later. Correction is made accordingly, and more accurate non-average tension is calculated. FIG. 9 shows an example of a screen 43 that displays the pillar information. As shown in the figure, the screen 43 includes a column information input field 431.

The tension vector generation unit 114 generates a non-average tension applied to the transfer utility pole and a vector indicating the tension direction (hereinafter referred to as a tension vector) based on the measurement information, the electric wire information, and the mounting pole information. The tension vector generation unit 114 first calculates the tension for each electric wire. FIG. 10 is a diagram illustrating a state in which an electric wire is stretched between two utility poles. FIG. 10 shows that the electric wire 443 is stretched between the utility pole 441 and the utility pole 442 with a slackness of D (m). Here, the weight per unit length of the electric wire is W (kg / m), the gravitational acceleration is g (m / s ² ), the span between the utility poles 441 and 442 is S (m), and the lowest point 444 of the electric wire When the tension is T (kN), it is known from the catenary formula that the following formula (1) holds.

Since a large number of electric wires with different line types are installed on the distribution line, it is easier to design and construct a cable with a constant sag for each length regardless of the line type. Therefore, in this embodiment, the sag D of the electric wire is assumed to be a constant such as 1 m, for example. Therefore, the tension T (kN) at the lowest point 444 is obtained by the following equation (2).

The tension T ′ at the support point 445 of the electric pole of the utility pole 442 is obtained by T ′ = T + WD. However, since WD is normally considered to be sufficiently smaller than T, in this embodiment, it is assumed that T ′ = T, and the tension at the support point 445 of the wire is T.
In addition, since the tension is proportional to the number of wires, the actual tension applied to the relocated utility pole is a value obtained by multiplying T obtained by the above formula by the number of wires.

  As described above, the tension vector generation unit 114 calculates, for each electric wire, the weight per unit length of the electric wire information as W (kg / m) and the distance of the measurement information as S (m) according to the above equation (2). The tension T is calculated by multiplying the value by the number of lines included in the wire information. The tension vector generation unit 114 calculates a vector indicating the calculated tension T and the orientation of the measurement information as a tension vector.

The branch line design information input unit 116 accepts input of information related to branch line design (hereinafter referred to as branch line design information). A configuration example of branch line design information received by the branch line design information input unit 116 is shown in FIG. As shown in the figure, the branch line design information includes branch line number, facility direction, attachment point, thickness, root spread, and safety factor. The branch line number is branch line identification information, and is assigned by the branch line design information input unit 116. The facility direction indicates the direction in which the branch line is installed. In this embodiment, the facility direction is indicated by an orientation in which the north is 0 °. An attachment point shows the height which attaches a branch line. The thickness indicates the cross-sectional area of the branch line. The thickness of the branch line is information for calculating the strength of the branch line. In the present embodiment, when the thickness of the branch line is “38 mm ² ”, the strength of the branch line is a predetermined constant such as 20 kN, and the strength is proportional to the thickness. Therefore, if the thickness of the branch line is “55 mm ² ”, the strength of the branch line is 20 × 55 ÷ 38≈28.95 kN. The strength of the branch line is corrected by the safety factor. Therefore, the strength of the branch line is calculated as a quotient obtained by dividing the predetermined constant by the safety factor.

  An example of a screen 45 for inputting branch line design information is shown in FIG. On the screen 45, the tension vector for each electric wire generated by the tension vector generation unit 114 is displayed. In the following description, for the sake of simplicity, the relocation utility pole is connected to two adjacent utility poles. In the example of FIG. 12, the tension vector 451 for the utility pole indicated by “electric pole 1” and the tension vector 452 for the indication of “electric pole 2” are displayed. In the lower part of the screen 45, an input field 453 for branch line information is displayed. For example, the designer operates the input device 105 such as a keyboard or a touch panel to input values in the items in the input field 453. The branch line design information input unit 116 receives branch line design information including the value of each item input in the input field 453. The branch line design information input unit 116 displays the branch line vector 454 with the strength calculated based on the received branch line design information as the magnitude and the facility direction included in the branch line design information as a direction. When a branch line addition button 455 on the screen 45 is pressed, an item for other branch line design information is additionally displayed in the input field 453 so that other branch line design information can be input. In this manner, when the designer inputs one or more branch line design information items in the input field 453, the branch line vector and the wire tension vector are displayed on the screen 45. Therefore, the designer can perform the design work while confirming these vectors, so that the design work can be advanced efficiently and effectively.

  The unaverage tension vector generation unit 115 combines the tension vectors generated by the tension vector generation unit 114 by vector calculation to generate an unaverage tension vector. When combining the tension vectors, the non-average tension vector generation unit 115 corrects the tension according to the attachment point of the electric wire and corrects the vector direction according to the length of the arm metal to which the electric wire is attached.

FIG. 13 is a diagram for explaining correction in the vector direction according to the length of the arm bracket. In the example of FIG. 13, the adjacent power pole 462 and the adjacent power pole 463 are connected to the transfer power pole 461 by the electric wire 464 and the electric wire 465, respectively. The distance between the relocation utility pole 461 and an adjacent utility pole 462 is _{S 1,} the distance between the relocation utility pole 461 and an adjacent utility pole 462 is _{S 2.} In addition, the length of the arm bracket of the transfer utility pole 461 is L. In the present embodiment, for the sake of simplicity, correction is performed on the assumption that the protruding direction of the arm metal is perpendicular to the direction from the transfer utility pole 461 to the adjacent utility pole 462.

As shown in FIG. 13, the non-average tension vector generation unit 115 corrects the tension direction of the electric wires 464 and 465 in accordance with the arm length L of the transfer utility pole 461, and the tension of the electric wire 464 is adjusted. The vector needs to be rotated counterclockwise by θ ₁ around the adjacent power pole 462, and the tension vector for the wire 465 needs to be rotated clockwise around θ ₂ by the adjacent power pole 463.

また、θ_２は、次の式（４）により求めることができる。

Here, θ ₁ can be obtained by the following equation (3).

Moreover, (theta) ₂ can be calculated | required by following Formula (4).

Note that the lengths S ₁ and S ₂ of the electric wires 464 and 465 are considered to be sufficiently small, so that they do not change. That is, in this correction, only the direction of the tension vector is corrected.

Next, tension correction according to the attachment point of the electric wire will be described. FIG. 14 is a diagram illustrating an example of a utility pole 471 in which two electric wires are stretched at different attachment points. When the tension of the electric wire 472 is calculated as T ₀ and the tension of the electric wire 473 is calculated as T _{1 according} to the above equation (2), the attachment point of the electric wire 472 is h ₀ (m), and the attachment point of the electric wire 473 is h _1. (M). Here, the coefficient a ₁ for correcting T ₁ to the tension when the electric wire 473 is attached to h ₀ is obtained by “a ₁ = h ₁ ÷ h ₀ ”.

In the present embodiment, the tension for all the electric wires is converted into the tension at the attachment point of the branch line. Thus, the attachment point included in the branch design information and h _0, the attachment points h _i included in the electric wire information for the i-th _wires, if the tension is calculated by the above-mentioned formula (2) as a T _i, The corrected tension A _i is obtained by the following equation (5).
A _i = T _i × (h _i ÷ h ₀ ) (5)

  As described above, the non-average tension vector generation unit 115 corrects the direction of the vector by the above formulas (3) and (4) when synthesizing the tension vector, and determines the magnitude of the tension vector by the above formula (5). Correct by

  The non-average tension vector generation unit 115 corrects the tension vector for each electric wire as described above, and then combines the tension vectors by vector calculation to generate an unaverage tension vector.

  In this way, by correcting the direction in which the tension is applied according to the length of the armrest, and correcting the tension of the wires with different attachment points according to the attachment points of the branch lines, the non-average tension applied to the transfer utility pole can be accurately determined. Can be calculated.

  The design support information output unit 117 outputs a non-average tension or a difference between the non-average tension and the strength of the branch line, that is, a residual non-average tension that is not shared by the branch line. An example of the screen 50 output by the design support information output unit 117 is shown in FIG. As shown in the figure, the screen 50 displays an unaverage tension vector 501 in addition to the screen 45 of FIG. 12 described above. The screen 50 also displays a display field 502 for non-average tension and residual average tension. The non-average tension displayed in the display field 502 is the size of the non-average tension vector 501, and the remaining non-average tension is the difference obtained by subtracting the branch line strength calculated based on the branch line design information from the non-average tension. It is. In addition, the screen 50 displays a range 503 of plus or minus 45 degrees opposite to the direction of the non-average tension vector. The range 503 is a guideline for effectively installing a branch line.

  The design support information output unit 117 may display an inverse vector of the non-average tension vector. In this case, the site terminal 10 can present to the designer the location where the branch line should be installed.

  As described above, according to the branch line design support system of the present embodiment, the magnitude and direction of the non-average tension applied to the electric wire can be displayed. Therefore, the designer can easily grasp the strength of the branch line to be installed and the direction to install the branch line.

  Further, according to the branch line design support system of the present embodiment, by inputting the strength of the branch line to be designed and the facility direction, when the branch line is installed, the magnitude and direction of the residual unaverage tension that cannot be shared are determined. Can be displayed. Therefore, even if the designed branch line is installed, the designer can change the root opening or attachment point of the branch line or add a branch line if there is residual average tension.

  Moreover, according to the branch line design branch system of this embodiment, the electric wire information can be acquired from the facility management server 20, the measurement information can be acquired from the measuring device 107 on the spot, and the tension of the electric wire can be calculated. Therefore, it is possible to calculate the wire tension more accurately by obtaining the specifications of the wire from the equipment management server 20 and measuring the span, the stretching direction, and the like on site. . In addition, since the distance between adjacent power poles can be measured at the site, even if the position of the power pole is not managed in a map information system etc., the direction where the non-average tension is applied can be calculated accurately. Can do.

  Further, according to the branch line design support system of the present embodiment, a vector indicating the magnitude and direction of the tension for each of the plurality of electric wires stretched on the utility pole is synthesized by vector calculation to obtain the magnitude and direction of the non-average tension. It is possible to calculate a non-average tension vector indicating Therefore, the magnitude and direction of the non-average tension can be easily obtained.

  Further, according to the branch line design support system of the present embodiment, the tension direction of the electric wire can be corrected in consideration of the length of the arm bracket to which the electric wire is attached. Therefore, since the unaverage tension can be calculated more accurately, the remaining unaverage tension can be calculated accurately. Therefore, the designer can design the branch line more accurately.

  Further, according to the branch line design support system of the present embodiment, it is possible to compare with the strength of the branch line using the tension converted by so-called moment synthesis according to the attachment point of the electric wire. Therefore, a more accurate residual average tension can be calculated.

  In this embodiment, the direction of the adjacent power pole is obtained from the measuring device 107 such as a digital compass. For example, the shooting direction is set vertically upward by a camera equipped with a fisheye lens at the installation point of the transfer power pole. You may make it designate an azimuth | direction using the image | photographed image data. An example of the screen in this case is shown in FIG. The measurement information input unit 111 receives input of image data captured by a camera equipped with a fisheye lens, and displays an image around the installation point of the relocation utility pole based on the received image data, as in the screen 61. In the example of FIG. 16, two adjacent power poles 612 and 613 are displayed in the image 611. When the designer designates the adjacent power poles 612 and 613 on the image 611 on the screen 61 with a touch panel or a mouse, the measurement information input unit 111 sets the top of the image to be north (0 °) and centered on the center of gravity of the image. The azimuths of the adjacent power poles 612 and 613 are calculated, and the calculated azimuth is displayed. In the example of the screen 62, an arrow 621 indicating the direction of the adjacent power pole 612 and an arrow 622 indicating the direction of the adjacent power pole 613 are displayed. Thus, the direction of the adjacent power pole can be determined based on the image taken by the camera equipped with the fisheye lens. In this case, the designer can easily input the azimuth only by inputting the image data captured by the camera and designating the utility pole displayed in the image.

  In the present embodiment, the direction from the transfer utility pole to the adjacent utility pole is used as information for determining the extension direction of the electric wire. However, the present invention is not limited to this, for example, the position such as the latitude and longitude of the transfer utility pole. You may make it determine the extending | stretching direction of an electric wire based on information and the positional information on an adjacent utility pole. In addition, the direction from the transferred utility pole to one adjacent utility pole is used as a reference direction, the direction to the other adjacent utility pole is measured as an angle from the reference direction, and the installation direction is determined based on the measured angle. It may be.

  Although the present embodiment has been described above, the above embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes equivalents thereof.

It is a figure showing the whole branch line design support system composition concerning this embodiment. It is a figure which shows the hardware constitutions of the site terminal. FIG. 3 is a diagram showing a software configuration of the on-site terminal 10. It is a figure which shows the structural example of the measurement information which the measurement information input part 111 receives. It is a figure which shows an example of the user interface used when receiving the input of measurement information. It is a figure which shows the structural example of the electric wire information which the electric wire information acquisition part 112 acquires. It is a figure which shows an example of the display screen 42 of electric wire information. It is a figure which shows the structural example of the column information acquired from the equipment management server. It is a figure which shows an example of the screen 43 which displays mounting column information. It is a figure which shows the state by which the electric wire was stretched between two utility poles. It is a figure which shows the structural example of the branch line design information which the branch line design information input part 116 receives. It is a figure which shows an example of the screen 45 for inputting branch line design information. It is a figure for demonstrating correction | amendment of the vector direction according to the length of a bracelet. It is a figure which shows the example of the utility pole 471 by which the two electric wires were extended | stretched by the different attachment point. It is a figure which shows an example of the screen 50 which the design support information output part 117 outputs. It is a figure which shows the example of a screen in the case of designating an azimuth | direction using the image data which image | photographed the imaging direction upwards with the camera equipped with the fisheye lens.

Explanation of symbols

10 field terminal, 101 CPU, 102 memory,
103 storage device, 104 communication interface,
105 input devices, 106 display devices, 107 measuring devices,
111 Measurement information input unit, 112 Electric wire information acquisition unit, 113 Mounting column information acquisition unit,
114 tension vector generation unit, 115 non-average tension vector generation unit,
116 branch line design information input unit, 117 design support information output unit,
20 equipment management server, 30 communication network,
41 screen, 411 input field of the number of adjacent power poles, 412 icon,
413 Telephone pole name input field, 414 Distance display field, 415 Direction display field,
42 screen, 421 display field, 422 display field, 423 attachment point display field,
43 screen, 431 input column of column information,
441 telephone pole, 442 telephone pole, 443 electric wire,
444 Minimum point, 445 Support point of electric wire,
45 screen, 451 tension vector, 452 tension vector,
453 input field, 454 branch line vector, 455 branch line addition button,
461 Relocation utility pole, 462 Adjacent utility pole, 463 Adjacent utility pole,
464 electric wire, 465 electric wire,
471 electric pole, 472 electric wire, 473 electric wire,
50 screen, 501 non-average tension vector, 502 display field, 503 range,
61 screens, 611 images, 612 adjacent utility poles, 613 adjacent utility poles,
62 screen, 621 arrow, 622 arrow

Claims (14)

A system that supports the design of branch lines installed on power poles,
A tension information input unit that receives input of tension information for calculating the tension of the overhead wire stretched on the utility pole;
A tension calculator that calculates the tension of the overhead wire based on the tension information;
A direction information input unit that receives input of direction information related to the extending direction of the overhead wire;
Based on the received direction information and the calculated tension, a non-average tension vector determining unit that determines the tension direction of the overhead wire and a non-average tension vector indicating the tension;
A strength information input unit for receiving input of strength information for calculating the strength of the branch line;
An intensity calculator that calculates the intensity of the branch line based on the intensity information;
A facility direction input unit that receives an input of the facility direction of the branch line;
A branch line strength vector determining unit for determining a branch line strength vector indicating the facility direction and the strength of the branch line;
A residual non-average tension vector is calculated by combining the non-average tension vector and the branch line strength vector to calculate a residual non-average tension vector; and
A branch line design support system characterized by comprising: The branch line design support system according to claim 1,
The tension information includes a weight per unit length of the overhead line stretched on the utility pole, and a distance from a place where the utility pole is installed to another utility pole connected by the overhead line,
Branch line design support system characterized by The branch line design support system according to claim 2,
Equipment management server device that manages the weight per unit length of the overhead wire, a distance measuring device that measures the distance from the utility pole to the other utility pole, and an orientation from the utility pole to the other utility pole Connected to each of the azimuth measuring devices,
The tension information input unit receives the input of the distance from the distance measuring device, and receives the input of the tension information by receiving the input of the weight from the facility management server device,
The direction information input unit receives the direction output from the direction measuring device as the direction information;
Branch line design support system characterized by The branch line design support system according to claim 1,
The tension information includes a weight per unit length of the overhead wire and a distance from the utility pole to another utility pole connected by the overhead wire,
The tension calculation unit has a predetermined sag of the overhead wire as D (m), a weight per unit length as W (kg / m), a gravitational acceleration as g (m / s ² ), and the distance as If S (m)

Calculating the tension T (kN) by
Branch line design support system characterized by The branch line design support system according to claim 1,
The tension information input unit accepts input of the tension information for a plurality of the overhead wires,
The tension calculation unit calculates the tension for each of the overhead wires,
The direction information input unit accepts input of the direction information for each of the overhead lines,
The residual non-average tension display unit determines a tension vector indicating the tension and the tension direction for each of the overhead wires, and calculates the non-average tension vector by combining all the determined tension vectors. ,
Branch line design support system characterized by The branch line design support system according to claim 5,
The tension information includes the length of the overhead wire,
A column information input unit that accepts input of column information including the length of the armrest on which the overhead line is stretched,
The residual average tension display unit is expressed by a formula when the length of the overhead wire is S (m) and the length of the arm metal is L (m).

Calculating the angle θ, and rotating the non-average tension vector in a predetermined direction by θ and then combining with the branch line strength vector,
Branch line design support system characterized by The branch line design support system according to claim 5,
The tension information includes the length of the overhead wire,
A column information input unit that accepts input of column information including the length of the armrest on which the overhead line is stretched,
For the first and second overhead wires, the tension information input unit accepts input of the first and second tension information, and the direction information input unit accepts input of the first and second direction information. In case,
The tension calculator calculates the tension for each of the first and second overhead wires,
The residual average tension display unit, for each of the first and second overhead lines, based on the first and second direction information and the calculated tension, the magnitude of the tension of the overhead line and Determine the tension vector indicating the direction,
The angle of the second tension vector with respect to the inverse vector of the first tension vector is θ ₀ , the length of the first overhead line is S ₁ (m), and the length of the second overhead line is S ₂ (m ), When the length of the arm is L (m)

To calculate the angle θ ₁ , rotate the first tension vector by θ ₁ in a predetermined direction, and

To calculate the angle θ ₂ , rotate the second tension vector by θ _{2 in the} direction opposite to the rotation direction of the first tension vector, and synthesize the first and second tension vectors. Calculating a non-average tension vector;
Branch line design support system characterized by The branch line design support system according to claim 1,
The tension information includes a tension height that is a height at which the overhead wire is tensioned,
The strength information includes a branch line mounting height, which is a height at which the branch line is mounted,
The tension calculation unit calculates a conversion factor that is a quotient obtained by dividing the tension height by the branch line mounting height, and a value obtained by multiplying the tension calculated based on the tension information by the conversion factor is used as the tension. To calculate,
Branch line design support system characterized by The branch line design support system according to claim 1,
It has a safety factor input unit that accepts input of safety factors related to design,
The tension calculator multiplies the tension calculated based on the tension information by the safety factor;
Branch line design support system characterized by The branch line design support system according to claim 1,
The extension information input unit accepts input of image data photographed with a camera device equipped with a fisheye lens as a photographing direction at a place where the utility pole is installed, and the tension information input unit receives the image data on the received image data. Receiving first position information indicating a position serving as a reference of an installation direction and second position information indicating a position of another power pole connected to the power pole by the overhead line as the direction information;
Branch line design support system characterized by The branch line design support system according to claim 1,
The residual non-average tension display unit calculates an inverse vector of the non-average tension vector, and displays the calculated inverse vector;
Support design support system characterized by The branch line design support system according to claim 11,
The residual average tension display unit displays a range obtained by rotating the direction of the reverse vector by a predetermined angle ± as a range where the branch line should be installed,
Branch line design support system characterized by A method for supporting the design of a branch line installed on a power pole,
Computer
Accepting input of tension information for calculating the tension of the overhead wire stretched on the utility pole,
Calculate the tension of the overhead wire based on the tension information,
Accepts input of direction information regarding the direction in which the overhead wire is stretched,
Based on the received azimuth information and the calculated tension, determine the tension direction and the non-average tension vector indicating the tension of the overhead wire,
Receiving input of strength information for calculating the strength of the branch line;
Calculate the strength of the branch line based on the strength information,
Accepts input of facility direction of the branch line,
Determining a branch line strength vector indicating the facility direction and the strength of the branch line;
Combining the non-average tension vector and the branch line strength vector to calculate a residual non-average tension vector, and displaying the calculated residual non-average tension vector;
Branch line design support method characterized by A program for supporting the design of branch lines installed on power poles,
On the computer,
Receiving an input of tension information for calculating the tension of an overhead wire stretched on the utility pole;
Calculating the tension of the overhead wire based on the tension information;
Receiving an input of direction information relating to a direction in which the overhead wire is stretched;
Determining a non-average tension vector indicating the tension direction and the tension of the overhead wire based on the received direction information and the calculated tension;
Receiving an input of strength information for calculating the strength of the branch line;
Calculating the strength of the branch line based on the strength information;
Receiving an input of the facility direction of the branch line;
Determining a branch line strength vector indicating the facility direction and the strength of the branch line;
Combining the non-average tension vector and the branch line strength vector to calculate a residual non-average tension vector, and displaying the calculated residual non-average tension vector;
A program for running

Images