JP2019066382A - Degree-of-sag ground observation system, portable terminal, computer and degree-of-sag ground observation method - Google Patents

Abstract

To enable an operator to safely and easily observe the degree of sag of an electrical wire from the ground regardless of operational experience or skill of the operator while reducing the number of operators for observation operation when wiring an electrical wire on iron towers.SOLUTION: A degree-of-sag ground observation system comprises: a measurement machine 10 for controlling a tracking mechanism 10b on the basis of given coordinate data to orient an optical axis of an optical system in a direction of three-dimensional coordinate specified by the coordinate data; and a tablet 20 wirelessly communicating with the measurement machine 10. The tablet 20 transmits coordinate data on temperature of an electrical wire selected and designated from a list of coordinate data displayed on a touch panel 23 to the measurement machine 10 and receives a video of a digital camera 12 oriented in a direction of coordinate data by the measurement machine 10, so as to display the video on the touch panel 23.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sagittal ground observation system, a portable terminal, a computer, and a sagittal ground observation method for bridging electric wires between steel towers.

  For example, when connecting a power transmission wire between steel towers several hundred meters apart, support the wire to one of the steel towers and pull the wire on the other steel tower side, and then position about half the wire spacing (span Raise the bottom of the wire's slack (bottom of the wire's slack) (see Fig. 2) at a position 1/2 of the length S, and observe it with an optical (lightwave) surveyer, and keep the wire's slack constant. Although it is necessary to set the slack range (about several centimeters of error), this work requires the placement of workers with a certain level of skill for height work and surveying work on both steel towers. Improvements are desired in terms of work efficiency and safety.

  In conventional sag monitoring, when attaching a mark (reflective seal) called Vertex (reflecting seal) at the height position of the other steel tower which is lowered from the wire support point of one steel tower to the prescribed sag point, one of the cables is lifted. The observer who climbs the tower observes the slack bottom of the rising wire with "pokecon" (small optical observation machine) using the vertex of the other tower as a mark, and the position of the wire at the position where the mark and slack bottom coincide The operation of stopping the winding is communicated by a portable wireless device or the like, and after fixing the electric wire at that position, the vertex is removed.

  By the way, in the case of such a slack observation method, it is necessary to arrange two workers capable of working at heights on both steel towers, and one of them is to arrange a skilled observer who can operate the pocket computer, It is necessary to set the work schedule after securing the personnel.

  Therefore, in recent years, a technology for observing the slack of the electric wire from the ground by a surveying instrument and a PDA installed on the ground has been developed (see Patent Document 1).

Unexamined-Japanese-Patent No. 2010-133953

  However, in the case of the conventional ground observation technology, it is necessary to arrange the surveying machine in a position where the wire support points of both steel towers can be visually observed in addition to the slack bottom of the wire (midpoint of the wires) passed between the steel towers. , Observation work can not be performed at places where one of the two wire support points of two steel towers is hidden due to the influence of forestry and hilly areas with plants, trees and trees, and other buildings, so new observation It is necessary to find a place or harvest trees to make the wire support point visible. Moreover, in order to ensure the required accuracy, it is necessary to arrange a mirror and a reflective seal at the wire support points of both steel towers, and there is a problem that work at heights is not eliminated.

  In addition, the electric wire supporting point of the steel tower is not limited to only one in each steel tower, and there are many cases in which a plurality of (6 to 8) wires are provided by providing a plurality of arms on the left and right at different heights in the steel tower. Yes, in this case the wire support points of all arm tips need to be visible from the surveying instrument, but the steel tower is structurally large in addition to the arms and the optical surveying instrument is set at a position where the wires can be seen. The wire support point of one of the two towers far away from the tower is often hidden behind the arm or frame.

  The present invention has been made to solve such problems, and it is possible to reduce the number of workers involved in the work when erecting a wire to a steel tower while reducing the number of workers from the ground regardless of the work experience and degree of work of the workers. It is an object of the present invention to provide a sagittal ground observation system, a portable terminal, a computer and a sagittal ground observation method capable of safely and easily observing the sag of the electric wire.

  The sagittal ground observation system according to the present invention is wirelessly connected to a surveying instrument capable of pointing the optical axis of a collimating mirror and a digital camera in the direction of coordinates specified by input coordinate data, and the surveying instrument. In a sagittal ground observation system including a portable terminal, the surveying instrument is included in an image of the digital camera directed to the known point from the surveying instrument installed at a location where two known points on the ground and the sagittal point can be seen through A position specifying unit for measuring the distance between the prism and the surveying instrument by touching the image of the prism on the screen of the surveying instrument, and identifying the position of the surveying instrument from the survey results of the two known points The portable terminal includes a pair of iron towers for overhead wire connection, a wire support point of each tower, a slack point of a wire connected between the wire support points of the tower, and a ground on which a mark is provided in advance. The position of one known point A storage unit in which a file obtained by converting dimensional data on a design drawing into three-dimensional coordinate data is stored for each electric wire and each temperature, a touch panel for displaying a list of the coordinate data, the coordinate data and the digital The wireless communication unit for wirelessly communicating the video data of the camera, and the coordinate data of the temperature of the electric wire selected / designated from the list of coordinate data displayed on the touch panel are read out from the storage unit, the surveying through the wireless communication unit And a tracking control unit configured to wirelessly transmit to the device, receive an image of the digital camera directed in the direction of the coordinate data in the surveying device, and display the image on the touch panel.

  The sagittal ground observation method according to the present invention comprises a surveying instrument capable of directing the optical axes of a collimating mirror and a digital camera in the direction of coordinates specified by input coordinate data, and wirelessly connected to the surveying instrument. In a sagittal ground observation method in a sagittal ground observation system including a portable terminal, the image of the digital camera directed to the known point from the surveying machine installed in a place where two known points on the ground and the sagittal point can be seen through A step of the surveying instrument surveying the distance to the prism by touching the image of the included prism on the screen of the surveying instrument, and specifying the position of the surveying instrument from the survey results of the two known points; A pair of steel towers for overhead wiring, wire support points of each steel tower, slack points of wires connected between the wire support points of the steel towers, and positions of two known points on the ground where marks are provided in advance Design including Storing in the portable terminal a file obtained by converting dimensional data of the object into three-dimensional coordinate data for each electric wire and each temperature, displaying a list of coordinate data on a touch-sensitive touch panel of the portable terminal, and A step of wirelessly communicating coordinate data and image data of the digital camera, and coordinate data of a temperature of an electric wire selected / designated from a list of coordinate data displayed on the touch panel from the portable terminal to the surveying instrument The method may include the steps of transmitting and displaying the image of the digital camera directed in the direction of the coordinate data in the surveying instrument on the touch panel of the touch panel.

  According to the present invention, the worker can observe the slack of the wire safely and easily from the ground regardless of the worker's work experience and the degree of refinement while reducing the number of working personnel involved in the work when wiring the wire to the steel tower be able to.

It is a figure showing composition of Sag ground observation system of one embodiment. It is a top view of FIG. It is a figure which shows the structure of a surveying instrument. It is a figure which shows the structure of a tablet. It is a figure which shows an example of the data regarding a steel tower. It is a figure which shows an example of the data regarding slack. It is a figure which shows an example of the data regarding a known point. It is a figure which shows an example of the coordinate data regarding the support point of an electric wire. It is a figure which shows an example of the coordinate data regarding a slack point. It is a figure which shows an example of the coordinate data regarding a known point. It is a flow chart which shows processing performed in this slack ground observation system, and work. It is a figure for demonstrating the self-positioning function of a survey instrument. It is a figure for demonstrating the slack point follow-up function of a survey instrument. It is a figure showing an image of a digital camera projected on a touch panel of a tablet. It is a figure which shows the visual field of the collimating mirror of a surveying instrument.

  Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a view showing the configuration of a sagittal ground observation system according to an embodiment of the present invention, and FIG. 2 is a plan view thereof.

  As shown in FIGS. 1 and 2, in the sagittal ground observation system according to this embodiment, a pair of steel towers 1 and 2 for overhead wire connection provided apart from each other and any one of these steel towers 1 and 2 Of the surveying instrument 10 wirelessly communicated with the surveying instrument 10 by wirelessly communicating with the surveying instrument 10 disposed at a position where the steel tower (in this example, the steel tower 1), the ground wire G, and the slack points 35 and 36 of the electric wires C1 to C3 are visible. It comprises a tablet 20 as a portable terminal for controlling the operation, a computer (not shown) for generating data in the CSV format used for the tablet 20, and the like. The distance between the steel tower 1 and the steel tower 2 is about 300 m and the height difference is about 20 m.

  The ground wire G is a wire (a lightning protection wire) placed on the top of the power transmission line (the top of the steel towers 1 and 2) for the purpose of protecting the power transmission lines C1 to C3 from lightning strikes. Since the earth is grounded, the potential is the same as the ground, and the lightning escapes from the ground wire G to the ground via the steel towers 1 and 2 to reduce lightning strikes on the electric wires C1 to C3.

  In the case of this example, the steel towers 1 and 2 are examples of two lines (one line for each of the left and right arms) and three stages of arms are provided in the height direction. From the position 30 where the surveying instrument 10 is set, a tree 7 is planted on a straight line B (see FIG. 2) to the wire support point 33b of the steel tower 2, and the wire support point of the steel tower 2 is obstructed by the tree 7. 33b can not be seen (mark of X).

  The computer is a general-purpose computer including a CPU, a memory, a hard disk drive, a communication interface (hereinafter referred to as "communication I / F"), a USB interface (hereinafter referred to as "USB I / F"), etc. For example, it is assumed that they are placed not in the field but in an office or the like. Conversion software for converting data is installed in the hard disk drive of the computer.

  The conversion software integrates data of design dimensions including towers 1 and 2 and topography around the towers, and converts the position of each portion including the towers 1 and 2 into data of three-dimensional position coordinates. The parts including the towers 1 and 2 are, for example, the electric wires C1 connected between the wire support points 33a, 33b, 34a, 34b of the towers 1, 2 and the wire support points 33a, 33b, 34a, 34b of the towers 1, 2 ~ C3 sag points 35 and 36, two or more ground positions 31 and 32 on which a mark such as a pile indicating a known position is installed in advance (position 31 is a first known point, position 32 is a second known point) Etc.

  Explaining in detail, the conversion software is connected between the steel towers 1, 2 and the wire support points 33a, 33b, 34a, 34b of the steel towers 1, 2 and the wire support points 33a, 33b, 34a, 34b of the steel towers 1, 2. Of the two known points, dimensional data on the design drawing including slack points 35 and 36 of the electric wires C1 to C3 to be erected and two or more positions 31 and 32 on the ground where the known piles are installed in advance Convert the coordinate data converted into any one known point, for example, three-dimensional coordinate data with the position 31 of the main point pile of the steel tower 1 being the first known point as the starting point (coordinate origin), CSV format for each air temperature Function as a conversion unit to be stored in a predetermined storage unit, for example, the USB memory 40 (see FIG. 4) connected to the USB I / F 21 as a file (hereinafter referred to as “CSV file”) of The computer on which this conversion software is installed is referred to as a conversion device.

  The USB memory 40 functions as a storage unit that stores a plurality of CSV files for each electric wire and each air temperature converted by the conversion software. The reason for creating multiple CSV files for each temperature is that the slack point changes depending on the local temperature at the time of observation.

  The second known point is a position 32 of the TP pile 5 m away from the position 31 (first known point) of the point pile in the Y-axis direction. Note that the first and second two known points may be set at arbitrary positions (positions) as long as the positions can be specified in advance and the mirror can be erected at the positions.

  The hard disk drive stores design information of the installation site including the steel towers 1 and 2. The design information is, for example, a longitudinal view (a topographical map in which dimensional data of height differences around towers 1 and 2 are described), a plan view (a diagram showing a planar arrangement relationship between towers 1 and 2), a tower structure diagram, etc. Data of design drawings (data of dimensions, angles, temperature, etc.), data of results of actual measurement of positions of reference piles such as main point piles and TP piles (inspection result table), etc.

  As shown in FIG. 3, the surveying instrument 10 has a main body 10 c in which the optical axis of the optical system including the digital camera 12, the collimating mirror 11 and the laser irradiation unit 13 is directed in a predetermined direction, It has a tracking mechanism 10b which is rotatable (movable) in any direction, and a tripod 10a on which the tracking mechanism 10b is placed. The surveying instrument 10 can control the tracking mechanism 10b based on the given coordinate data to direct the optical axis of the optical system in the direction of three-dimensional coordinates (three-dimensional space) specified by the coordinate data. .

  In the main unit 10c, optical systems such as the collimating mirror 11, the digital camera 12 and the laser irradiation unit 13 and the operation panel 14 are disposed with their optical axes directed in the same direction (parallel), and wireless communication is performed inside the main unit A unit 15, a memory 16, a battery 17, a CPU 18, and the like are provided.

  The collimating mirror 11 has a performance of, for example, a magnification of 30 ×, a resolving power of 2.5 °, and a visual field of 1 ° 30 minutes (26 m / 1000 m). That is, the collimating mirror 11 is an optical telescope having a visual field 80 as shown in FIG. 15 and provided with a cruciform collimating line 81.

  The digital camera 12 is provided at the upper part of the collimating mirror 11 and has, for example, 5 M pixels, a viewing angle (long side 15.3 °, short side 11.5 °, diagonal angle 19.1 °), 1x (1 ×), Digital zoom is possible with four steps of 2x (2x), 4x (4x) and 8x (8x). The magnification (8 ×) of the digital camera 12 is lower than the magnification (30 ×) of the collimating mirror 11, and the operator can view a wide range by viewing the image of the digital camera 12.

  The laser irradiation unit 13 emits a laser beam and receives the reflected light that is reflected and returned by a mirror (prism) placed at an arbitrary position. The laser beam can be irradiated in a range of about 300 m in radius.

  The operation panel 14 has a touch panel (a screen capable of touch operation) for displaying an image captured by the digital camera 12 and displaying input data and a plurality of physical keys (various input keys, direction keys, etc.).

  The wireless communication unit 15 is a communication function such as a wireless LAN, for example, and wirelessly communicates with the tablet 20 to exchange data (files). The CSV file is received from the tablet 20 by wireless communication, and the image (image) of the digital camera 12 is transmitted to the tablet 20.

  The battery 17 uses a rechargeable lithium ion battery, and can operate the surveying instrument 10 for about 3 hours.

  The memory 16 stores a CSV file received from the tablet 20. The memory 16 functions as a work area of the CPU 18 (eg, an area for buffering the image of the digital camera 12 to be transferred to the tablet 20, an area for reading three-dimensional coordinate data from a CSV file of designated air temperature).

  The memory 16 stores a control application program (hereinafter referred to as "control application") for controlling the operation of the apparatus, and the CPU 18 performs a control operation by reading the control application.

  The CPU 18 is a process of specifying the position of the surveying instrument 10 itself based on survey data of two known points (self-position identification) and tracking control of the tracking mechanism 10b based on coordinate data to direct the main body 10c in the direction of the coordinates. Perform operation (automatic tracking).

(Self positioning)
The CPU 18 operates the control panel 14 with an image of the digital camera 12 with the surveying instrument 10 installed at a position where the two pile positions 31 and 32 (two known points) on the ground and the slack points 35 and 36 can be seen. When displayed on the screen of the screen, the observing operator touches the screen of the operation panel 14 with the image of the mirror (prism) included in the image, thereby surveying the distance between the prism and the main body 10c. It functions as a position specifying unit that specifies the position of the main body 10c from the point survey result.

  That is, the CPU 18 irradiates the laser toward the mirror (prism) erected at each known point and reflects it back to the mirror (prism) and the survey results of the two positions 31 and 32 with this reflected light The position of surveying instrument 10 itself is specified based on the coordinate data which makes position 31 of a point pile a starting point (coordinate origin).

  Specifically, at the time of position specifying processing, the main body 10c (digital) from the position where the operator installed the surveying instrument 10 to the direction of the mirror (prism) erected at the position 31 (first known point) of the main point pile. Turn the camera 12). Then, an image of the digital camera 12 is displayed on the touch panel 23 of the tablet 20.

  By tapping the image of the mirror in this image, the distance from the position 31 of the main point pile to the installation position of the point pile is measured based on the reflected light of the laser beam irradiated to the mirror from the laser irradiation unit 13 . This operation is also performed for the position 32 (second known point) of another TP pile, and as a result of performing surveying at at least two locations, the multiple surveyed survey data (data of distance and direction) surveyed merge this The position (three-dimensional coordinates) of the surveying instrument 10 itself with the position 31 of the point pile as the starting point (coordinate origin, main point GL) is obtained, that is, the position of the set surveying instrument 10 itself is specified (recognized).

  As the definition of the main point GL, the main point direction of the steel tower 2 from the coordinate origin is taken as the plus of the Y axis. A direction orthogonal to the horizontal direction with respect to the Y axis is taken as an X axis. The Z axis is a direction orthogonal to the Y-X plane, and the original ground height of the steel tower 1 is zero.

  The CPU 18 taps each mirror image by tapping the image of the mirror (prism) erected at that position 31, 32 included in the image of the digital camera 12 manually directed by the operator in the direction of the respective position 31, 32 Surveying the distance and direction between the main unit and the main unit 10c in order, identifying the coordinates of the position of the surveying instrument 10 itself based on the measurement results of the two positions 31 and 32, and the coordinate data of known points, It notifies the tablet 20 through the wireless communication unit 15.

(Automatic tracking)
The CPU 18 controls the tracking mechanism 10b based on the tracking instruction from the operation panel 14 or the tracking instruction from the outside, and specifies the coordinate data of the slack points 35 and 36 of the electric wire C3 received by the wireless communication unit 15, The collimating mirror 11 and the digital camera 12 are directed toward the sag points 35, 36 based on the position of the machine 10 itself. That is, the CPU 18 controls the tracking mechanism 10b based on the tracking instruction specifying the coordinates of the slack point from the tablet 20, and directs the collimating mirror 11 and the digital camera 12 in the direction of the slack points 35 and 36.

More specifically, for example, coordinate data of the slack point 35 of the electric wire 3C is received by the wireless communication unit 15 from the tablet 20, and the coordinate data is displayed on the operation panel 14.
Then, when the coordinate data displayed on the operation panel 14 is selected and operated by the observing operator, the CPU 18 slacks the electric wire C3 based on the received coordinate data of the slack point 35 and the position of the surveying instrument 10 itself specified. The position of the power point 35 is identified, and the collimating mirror 11 and the digital camera 12 are directed to the direction of the identified sag point 35.

  As shown in FIG. 4, the tablet 20 has a USB I / F 21, a wireless communication unit 22, a touch panel 23 capable of touch operation, a key operation unit 24, a battery 25, a memory 26, a CPU 27 and the like.

  The USB I / F 21 reads and writes data to the connected USB memory 40. The coordinate data of the CSV file for each electric wire of the USB memory 40 and for each temperature is stored in the memory 26 through the USB I / F 21.

  The wireless communication unit 22 has a communication function such as wireless LAN (WiFi), for example, and wirelessly communicates coordinate data and video data of the digital camera 12 with the surveying instrument 10. The wireless communication unit 22 wirelessly communicates with the surveying instrument 10, transmits a file of coordinate data to the surveying instrument 10, and receives video data from the surveying instrument 10. The communication function may be, for example, portable data communication, Bluetooth (registered trademark), or the like.

  The touch panel 23 displays a list of CSV files for each electric wire and for each temperature, which are read from the USB memory 40 and stored in the memory 26. In addition, the touch panel 23 displays an image of the digital camera 12 of the surveying instrument 10 received by wireless communication. The touch panel 23 can perform the same operation as the operation panel 14 of the surveying instrument 10, such as an instruction to the surveying instrument 10 by a touch operation.

  The touch panel 23 places (sets) the surveying instrument 10 in a place where two of two or more known points on the ground can be seen, and then sets two of coordinate data of a CSV file stored in the USB memory 40. It functions as a designation unit for designating the known points 31 and 32 and the slack points 35 and 36 of the electric wires C1 to C3.

  The key operation unit 24 is, for example, a power button, a function button, a direction key, a back button, etc., and is used by the operator to specify a file of a desired temperature from the files listed on the touch panel 23. .

  The battery 25 uses a rechargeable lithium ion battery, and can operate the tablet 20 for about 20 hours.

  A cooperative application program (hereinafter referred to as a “cooperative application”) with the surveying instrument 10 is installed in the memory 26, and the CPU 27 reads the interconnection application and executes the interconnection application process to execute the surveying equipment 10 Can be linked with

  Specifically, the CPU 27 reads the CSV file stored in the USB memory 40 into the memory 26 through the USB I / F 21 and displays the file list of the CSV file read in the memory 26 on the touch panel 23.

  The CPU 27 reads out the coordinate data of the temperature of the electric wire selected / designated from the list of coordinate data displayed on the touch panel 23 from the memory 27 and wirelessly transmits it to the surveying instrument 10 through the wireless communication unit 22. It functions as a tracking control unit that receives an image of the digital camera 12 directed in the direction of data coordinates and displays the image on the touch panel 23.

  Describing in detail, the CPU 27 reads out from the memory 26 two known points designated by the touch operation from the file list displayed on the touch panel 23 and transmits the two known points received by the surveying machine 10 The notification that specifies the position of the surveying instrument 10 itself based on the coordinate data of the positions 31 and 32 is received through the wireless communication unit 22. Since the positions 31 and 32 of the two known points are indicated one by one in order, their positions are specified from the distances to the positions 31 and 32 of the two known points measured respectively.

  After specifying its own position, the CPU 27 transmits the coordinate data of the slack point of the electric wire specified from the touch panel 23 to the surveying instrument 10 through the wireless communication unit 22.

Further, the CPU 27 causes the image of the electric wire C3a to be observed (see FIG. 14) included in the image of the digital camera 12 displayed on the touch panel 23 to be at a predetermined position (screen of the touch panel 23 which is the angle of view of the digital camera 12). Functions as a notification control unit that outputs a wire winding stop signal when the center position of
Specifically, when the video taken by the digital camera 12 of the surveying instrument 10 is received through the wireless communication unit 22, the CPU 27 displays the video on the touch panel 23.

  When the CPU 27 winds up the electric wires C1 to C3 passed between the steel towers 1 and 2 from one of the steel towers 1 side and the lower ends (sag bottoms) of the electric wires C1 to C3 reach the center position of the photographed image of the digital camera 12 Output a signal to stop the winding. The central position of the angle of view of the digital camera 12 is also the central position of the collimation line 81 of the collimating mirror 11.

  For example, the slack point 35 of the electric wire C3a is at a position of 1/2 (half) of the span length S of the electric wire C3a from the position of the height specified for the electric wire C3a in the vertical direction. When the image of the moving electric wire C3a comes to the center of the visual field of the image of the digital camera 12, a signal to instruct the winding stop is outputted.

  Here, data (dimension data, angle data, etc.) stored in advance in the computer of the office will be described with reference to FIGS. 5 to 7.

  The office computer prestores data of design dimensions including the tower and the topography around it. Specifically, the data 51 on the steel tower in FIG. 5, the data 53 on the sag in FIG. 6, the data 55 on the known point in FIG.

  As shown in FIG. 5, data 51 on the steel tower is data such as the arm length, arm width, height, and correction angle for each of the steel towers 1 and 2. In the figure, for example, "1 LC3" of the item of arm length and arm width indicates the dimension (unit: meter) of the arm supporting the electric wire C3 of the first circuit. For example, "C2-C3" of the item of height indicates the height (unit: meter) from the electric wire C2 to the electric wire C3. For example, “4.45” in the item of the correction angle indicates an angle inclined to the Y axis with respect to the coordinate origin (X axis, Y axis) on the plane.

  As shown in FIG. 6, the data 53 related to the sag is data such as the span length S, the air temperature at the time of observation (minimum air temperature, maximum air temperature), and the sag according to temperature. For example, "298. 860" in the item "long span" indicates the distance (in meters) between the steel towers 1 and 2. “6.980” in the item “1L · 2L 20 ° C” indicates that the slack point is the position lowered 6.980 m from the height at which the wires C1 to C3 are linearly stretched between the steel towers 1 and 2 Show (in meters). The same applies to the ground line G.

  As shown in FIG. 7, in the data 55 regarding the known points, the position 31 of the main point pile of the steel tower 1 as the first steel tower is the main point GL, and each known point from the position of the main point GL (the steel tower 1 side The plane distance (X-axis-Y-axis) and ground height difference (Z-axis) to TP pile, TP pile on the side of steel tower 2, other optionally built-in TP pile, expansion pile, etc. are shown (unit: meter).

  Subsequently, data of three-dimensional position coordinates obtained by converting data on the design drawings of FIGS. 5 to 7 will be described with reference to FIGS. 8 to 10. 8 shows coordinate data 61 related to the wire support point, FIG. 9 shows coordinate data 63 related to the slack point, and FIG. 10 shows coordinate data 65 related to the known point.

  As shown in FIG. 8, the coordinate data 61 regarding the wire support point is the tower with the position 31 of the main point pile of the steel tower 1 as the starting point (X = 0.000, Y = 0.000, Z = 0.000) It is a three-dimensional coordinate (X axis, Y axis, Z axis) of a support point of each line (ground line G, electric wires C1 to C3) connected to 1 and 2.

  As shown in FIG. 9, coordinate data 63 related to the slack point is three-dimensional coordinates (X axis, Y axis, Z axis) of the slack point for each temperature. In FIG. 10, for example, coordinate data of the sag point of each wire (ground wire G, electric wires C1 to C3) at 15 ° C. is shown, but the range (0 ° C. to 35 ° C.) of the data 53 related to the sag in FIG. Similarly, coordinate data is created for other temperatures.

  As shown in FIG. 10, the coordinate data 65 regarding the known point is each known point with the position 31 of the main point pile of the steel tower 1 as the starting point (X = 0.000, Y = 0.000, Z = 0.000) The three-dimensional coordinates (X-axis, Y-axis, Z-axis) of (TP pile on the tower 1 side, TP pile on the steel tower 2 side, other optional TP piles, extension piles, etc.) are shown.

Hereinafter, the observation procedure in this slack ground observation system will be described with reference to the flowchart of FIG.
In this slack ground observation system, as preparation in advance, stakeout is performed at two known places of the observation site, that is, at known points which can be recognized from the design drawing (step S101 in FIG. 11). In addition, it is possible to omit the piling work by previously setting the position 31 of the main point pile of the steel tower 1, the position 32 of the TP pile, and the like as known points.

  Next, at two known points (positions 31, 32), the height at which the mirror is to be installed is measured (step S102). For example, the position coordinates (Z axis, height) of the mirror when the mirror (prism for surveying) is installed at a height of 0.7 m at the position 31 of the main point pile which is a known point are surveyed. Specifically, the level difference between the point (mirror top of a small nail) at which the mirror is erected at two known points (positions 31, 32) and the reference height (GL) is measured. Then, when setting a mirror in each pile, the height from the lowermost part to the mirror is made the height input by the computer of the office, and the mirror is fixed and observed.

  At the office, the conversion software of the computer integrates the data (design data of each part, etc.) on the design drawing regarding the steel tower, known point, and slack stored in advance in the assembly direction of the part and Convert it into three-dimensional coordinate data of wire support points, known points (positions such as real point piles and TP piles) and slack points, create a CSV file for each temperature (step S103), and save the file to USB memory Then, the USB memory 40 is connected to the tablet 20, and the file is moved to the tablet 20 and stored (step S104).

The following is the actual work at the observation site.
At the observation site, the hoist operator (wire operator) and the observation operator carry portable radios such as mobile phones and transceivers, and work in cooperation with each other while making contact with each other. A hoist operator (wire operator) rolls up the electric wire C3 whose direction is changed downward by a pulley or the like via the electric wire supporting point of the steel tower 1, for example, the electric wire supporting point 33a, under the iron tower 1, using a winding machine.

  The observation worker brings the tablet 20 and the surveying instrument 10 to the observation site, connects the tablet 20 and the surveying instrument 10 by wireless communication, and attempts to share information in the memories 16 and 26 of each other. Then, the surveying instrument 10 is located at a position 30 (see FIG. 12) where two known points (for example, the main point pile on the tower 1 side and the TP pile) and a slack point (sag bottom) near the center of the electric wires C1 to C3 are visible. It sets (step S105).

  Subsequently, the CPU 18 of the surveying instrument 10 which has been set recognizes two known points, and identifies the position of the surveying instrument 10 (step S106).

  Here, this position specifying operation will be described in detail. The observer manually moves the set body 10c of the surveying instrument 10 to direct the digital camera 12 in the direction of the main point pile on the steel tower 1 side, and displays the image of the digital camera 12 on the operation panel 14. The image of the digital camera 12 is also displayed on the touch panel 23 of the tablet 20 connected to the survey instrument 10 by wireless communication.

  Subsequently, the observer holds the mirror and moves to the position 31 of the main point pile and sets the mirror at the position 31 (input by the computer) at the position 31 in advance. Then, the CPU 18 of the surveying instrument 10 surveys the distance from the mirror (position 31 of the main point pile) to the surveying instrument 10 by touching a mirror in the image displayed on the touch panel 23 of the tablet 20 .

  Subsequently, the observer manually moves the main body 10c of the surveying instrument 10 to direct the digital camera 12 in the direction of the TP pile on the steel tower 1 side, and the image of the digital camera 12 is used as a touch panel of the operation panel 14 and the tablet 20. Display on 23

  Next, the observer holds the mirror, moves to the position 32 of the TP pile, and sets the mirror at the position 32. Then, the CPU 18 of the surveying instrument 10 surveys the distance from the mirror (the position 32 of the TP pile) to the surveying instrument 10 by touching a mirror in the image displayed on the touch panel 23 of the tablet 20.

  In this way, the CPU 18 of the surveying instrument 10 (coordinate data of registered known points stored in the memory 16) by surveying two known points (the position 31 of the real point pile and the position 32 of the TP pile) And determine the position of the surveying instrument 10 itself set based on the survey data of two known points).

  After having the surveying instrument 10 recognize its own position, the observing operator measures the temperature (air temperature) of the place with a thermometer brought to the site (observation site) (step S107).

  After measuring the temperature (air temperature), the CSV file of the measured temperature (air temperature) of the electric wire to be observed is designated by a touch operation from the list displayed on the touch panel 23 of the tablet 20 (step S108). If the electric wire to be observed is, for example, the electric wire C3a and the measured temperature is 25 ° C., a 25 ° C. CSV file of the electric wire C3a is designated.

  Then, the CPU 27 reads out the designated CSV file from the memory 26 and transmits it to the survey instrument 10 through the wireless communication unit 22 (step S109).

  In the surveying instrument 10, when the CSV file is received from the tablet 20, the CPU 18 controls the tracking mechanism 10b based on the received coordinate data of the CSV file to rotate the main body 10c, and the digital camera 12 and the collimation The mirror 11 is oriented in the direction of the slack point 35 of the wire C3a (see step S110, FIG. 13).

  When the digital camera 12 and the collimating mirror 11 face in the direction of the slack point 35 of the electric wire C3a, the observing operator instructs the winding operator who has been waiting at the location of the steel tower 1 to wind up the electric wire C3a.

  When the winding operator rolls up the electric wire C3a according to the instruction from the observing operator, first, as shown in FIG. 14, the image of the touch panel 23 photographed by the digital camera 12 having a magnification smaller than that of the collimating mirror 11 The electric wire C3a appears in the. Note that, for example, when the wires C2a and C1a are already connected in the image of the touch panel 23, they are also reflected, so the observer checks the situation around the slack point 35 of the wire C3a in a wide area be able to.

  When the wire C3a is further wound up, the image of the wire C3a moves near the center of the field of view (touch panel 23) of the digital camera 12, as shown in FIG. The electric wire C3a also enters the visual field 80 of the above, so that the observer can visually recognize the bottom of the slack of the electric wire C3a in detail.

  Furthermore, when the electric wire C3a is wound up and the slack bottom of the electric wire C3a reaches the center position (the cross portion of the collimation line 81) of the field of view 80 of the collimating mirror 11, that is, the digital camera displayed on the touch panel 23 When the center of the 12 images is reached, the CPU 18 outputs a winding stop signal (step S111).

  The winding stop signal output from the survey instrument 10 is received by the tablet 20 by wireless communication, and the CPU 27 causes the touch panel 23 to display an alarm indicating stop of winding or output a beep sound, so the observer can In accordance with this alarm, using a portable wireless device, the winding operator is instructed to stop winding. The winding operator stops winding of the electric wire C3a according to an instruction from the observation operator.

  In addition, by carrying the same touch panel 23 as the observation operator, the winding operator notices an alarm triggered by the winding stop signal from the survey instrument 10, and the electric wire C3a is wound without receiving an instruction from the observation operator. Can be stopped, and the position of the slack bottom of the electric wire C3a can be determined without a time lag (time lag).

  Note that such an example of the work procedure is an example, and it is possible to change the work procedure in various ways by replacing each step, adding a new step, or deleting some steps.

  As described above, according to the sagittal ground observation system of this embodiment, the following effects can be obtained.

  (1) Electric wires G, C1 to C1 connected between one pair of steel towers 1 and 2 for overhead wire connection, wire supporting points 33a and 33b of each steel tower 1 and 2 and wire supporting points 33a and 33b of steel towers 1 and 2 Among the first and second known points, the dimensional data on the design drawing including the slack points 35 and 36 of C3 and the positions 31 and 32 of the first and second known points on the ground where the piles and the like are installed in advance Convert the coordinate data into three-dimensional coordinate data starting from the position 31 of one of the two (such as the main point pile of a steel tower), and bring the converted coordinate data for each electric wire and temperature for each temperature By doing the work, complicated coordinate calculation and the like by the human at the observation site become unnecessary, and even a worker with little surveying experience can observe the sag with high accuracy.

  (2) In the preparation operation of the observation site, the surveying instrument 10 is set at an arbitrary position 30 where the positions 31 and 32 of two known points and the slack points 35 and 36 (sag bottom) of the electric wires G and C1 to C3 can be seen. Then, by causing the surveying instrument 10 to survey the positions 31 and 32, the surveying instrument 10 itself recognizes the position from the survey result, so the freedom of installation of the surveying instrument 10 is expanded. For example, surveying becomes possible from the area in the construction site near the one of the steel towers (in this example, the steel tower 1) and on the road, and it is not necessary to consider the securing of the site for observation and the logging of trees.

  (3) Moreover, since observation can be performed on one steel tower side (observed on the steel tower 1 side and the steel tower 2 side), the observation worker can use other management tasks in combination, and improve the staffing efficiency of the worker be able to.

  (4) In the sag observation operation of the observation site, the temperature is measured, and coordinate data for sag observation for each temperature and wire registered in advance in the tablet 20 is displayed on the touch panel 23 as a list, and desired The coordinate data for measuring the temperature of the electric wire to be observed on the touch panel is selected on the touch panel 23, and the coordinate data for slack measurement is passed to the surveying instrument 10. In the surveying instrument 10, the automatic tracking operation is performed based on the coordinate data. Since the collimating mirror 11 and the digital camera 12 are directed to the slack point of the relevant electric wire, complicated coordinate calculation by the hand at the observation site and alignment of the collimating mirror 11 become unnecessary, and work with no survey experience People can observe the sag with high accuracy.

  (5) Since the slack observation can be performed on the ground, even workers who have no experience in working at heights and the like can perform work safely and easily.

  That is, when overhead wires C1 to C3 are connected to steel towers 1 and 2, the number of workers involved in the observation work is reduced, and the worker can safely and easily sag from the ground regardless of the worker's work experience and degree of refinement Can be observed.

  Although the embodiment of the present invention has been described, this embodiment is shown as an example, and can be implemented in other various forms, and within the scope of the present invention, You can omit, replace, or change.

  Further, each component of surveying instrument 10 and tablet 20 shown in the above embodiment may be realized by a program, and the program is stored in a computer readable electronic medium: electronic program The computer may realize the functions of the present invention by causing the computer to read from the electronic medium. Examples of the electronic medium include a recording medium such as a CD-ROM, a flash memory, and a removable medium: removable media. Furthermore, the components may be distributed and stored in different computers connected via a network, and may be realized by communicating between the computers functioning the respective components.

  1, 2 ... tower, C1-C3, C1a, C2a, C3a ... electric wire, G ... ground wire, 7 ... tree, 10 ... surveying machine, 10a ... tripod, 10b ... tracking mechanism, 10c ... main body, 11 ... collimation mirror 12 Digital camera 13 Laser irradiation unit 14 Operation panel 15 Wireless communication unit 16 Memory 17 Battery 20 Tablet 21 USB I / F 22 Wireless communication unit 23 Touch panel , 24 ... key operation unit, 25 ... battery, 26 ... memory, 30, 31, 32 ... position, 33a, 33b ... electric wire supporting point, 35, 36 ... slack point, 40 ... USB memory, 80 ... view, 81 ... ... Line of sight, GL: main point, S: span length.

Claims (8)

A sagittal ground observation system comprising a surveying instrument capable of pointing the optical axis of a collimating mirror and a digital camera in the direction of coordinates specified by input coordinate data, and a portable terminal wirelessly connected to the surveying instrument In
The surveying instrument
By touching the image of the prism included in the image of the digital camera directed to the known point from the surveying instrument installed at a position where two known points and a slack point on the ground are visible, by touch operation with the operation panel of the surveying machine And a position specifying unit which measures the distance between the prism and the surveying instrument, and identifies the position of the surveying instrument from survey results of the two known points,
The portable terminal is
A pair of steel towers for overhead wire, wire support points of each steel tower, slack points of wires wired between the wire support points of the steel tower, and positions of two known points on the ground where marks are provided in advance A storage unit in which a file obtained by converting dimensional data on a design drawing including the above into three-dimensional coordinate data is stored for each electric wire and for each temperature;
A touch panel for displaying a list of the coordinate data;
A wireless communication unit that wirelessly communicates the coordinate data and the video data of the digital camera;
The coordinate data of the temperature of the electric wire selected / designated from the list of coordinate data displayed on the touch panel is read out from the storage unit and wirelessly transmitted to the surveying instrument through the wireless communication unit, and the coordinate data in the surveying instrument And a tracking control unit configured to receive an image of the digital camera directed in the direction of and to display the image on the touch panel.   The apparatus further comprises a notification control unit that outputs an electric wire winding stop signal when an image of the electric wire to be observed included in the image of the digital camera displayed on the touch panel reaches a predetermined position. The sagittal ground observation system according to claim 1. The alarm control unit
The sagittal ground observation system according to claim 2, characterized in that when the image of the wire moving up and moving comes to the center of the field of view of the image of the digital camera, a signal instructing stop of winding is output.   A pair of steel towers for overhead wiring, wire support points of each steel tower, slack points of the wires routed between the wire support points of the steel towers, and positions of two known points on the ground where piles are installed in advance Convert the dimensional data on the design drawing to be converted into three-dimensional coordinate data starting from the position of one of the two known points, and store the converted coordinate data in the storage unit for each electric wire and for each temperature The sagittal ground observation system according to claim 1, further comprising a converter. It has a main body with the optical axis of the optical system including a digital camera, a collimating mirror and a laser irradiator oriented in a certain direction, and a tracking mechanism which can turn the main body, based on given coordinate data A portable terminal wirelessly communicating with a surveying instrument capable of controlling an optical axis of the optical system in the direction of the coordinate data by controlling the tracking mechanism.
A pair of steel towers for overhead wire, wire support points of each steel tower, slack points of wires wired between the wire support points of the steel tower, and positions of two known points on the ground where marks are provided in advance A storage unit in which a file obtained by converting dimensional data on a design drawing including the above into three-dimensional coordinate data is stored for each electric wire and for each temperature;
A touch panel for displaying a list of the coordinate data;
A wireless communication unit that wirelessly communicates the coordinate data and the video data of the digital camera;
The coordinate data of the temperature of the electric wire selected / designated from the list of coordinate data displayed on the touch panel is read out from the storage unit and wirelessly transmitted to the surveying instrument through the wireless communication unit, and the coordinate data in the surveying instrument And a tracking control unit configured to receive an image of the digital camera directed in the direction of and to display the image on the touch panel.   A pair of steel towers for overhead wire, wire support points of each steel tower, slack points of wires wired between the wire support points of the steel tower, and positions of two known points on the ground where marks are provided in advance Convert the dimensional data on the design drawing to be converted into three-dimensional coordinate data starting from the position of one of the two known points, and store the converted coordinate data in the storage unit for each electric wire and for each temperature A computer comprising a converter. A sagittal ground observation system comprising a surveying instrument capable of pointing the optical axis of a collimating mirror and a digital camera in the direction of coordinates specified by input coordinate data, and a portable terminal wirelessly connected to the surveying instrument In the ground observation method at
By touching the image of the prism included in the image of the digital camera directed to the known point from the surveying instrument installed at a position where two known points and a slack point on the ground are visible, by touch operation with the operation panel of the surveying machine The surveying instrument surveys the distance to the prism, and specifies the position of the surveying instrument from the survey results of the two known points;
A pair of steel towers for overhead wire, wire support points of each steel tower, slack points of wires wired between the wire support points of the steel tower, and positions of two known points on the ground where marks are provided in advance Storing in the portable terminal a file obtained by converting dimensional data on a design drawing including the data into three-dimensional coordinate data for each electric wire and for each temperature;
Displaying a list of coordinate data on a touch-sensitive touch panel of the mobile terminal;
Wirelessly communicating the coordinate data and the video data of the digital camera;
Wirelessly transmitting, from the portable terminal to the surveying instrument, coordinate data of a temperature of a wire selected / designated from a list of coordinate data displayed on the touch panel;
Displaying the image of the digital camera directed in the direction of the coordinate data in the surveying instrument on the touch panel.   8. The method according to claim 7, further comprising the step of stopping winding of the electric wire when the image of the electric wire to be observed included in the image of the digital camera displayed on the touch panel reaches a predetermined position. Method of ground observation in Japan.

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