JP2005140171A - Display device of concealed long object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and correctly grasp a laying condition of underground embedded pipes 13, 18 in soil 17 for feeding town gas and the like at a concealed site. <P>SOLUTION: A tag 2 is fixed to a gas meter 8 or a pipe near the gas meter 8. The tag 2 is a non-contact IC tag including a nonvolatile memory 38 in which positional information representing positions of the underground embedded pipes 13, 18 are stored and the stored content of the memory 38 is read out by high-frequency electromagnetic induction and transmitted to a transmitting and receiving antenna 34 for the tag. The positional information is received by a transmitting and receiving antenna 4 of an operation side and displayed on two-dimensional display screens 25, 31 of a display means as a plan view and an oblique perspective figure for representing the underground embedded pipes. The positional information includes one of directions of NSEW (north, south, east, west) from a start point M, and figures representing a distance of a pipe extending along the direction as well as vertical directions U, D in the soil 17. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a state in which a concealed long object including a pipe for transporting a fluid such as city gas or tap water provided in a concealed place such as the underground or a building, and an electric wire such as a power line or a telephone line is installed. It relates to the display device shown.

  Such a concealed long display device is required, for example, when an underground pipe that transports city gas is exposed and repaired by excavating soil. The installation status of underground pipes is stored, for example, on a map drawing provided by a company such as a gas construction company, but some of the installation status may not be described. The result is that wasteful excavation of the soil is required for repairing the buried pipe. In addition, in the event of an emergency such as a gas leak, the drawings showing such burial status are as described above, even though there is a desire to immediately know the status of underground pipe installation at the leak location. It is stored in a gas construction company and it takes time to obtain the drawings, and as a result, the emergency situation cannot be dealt with.

  Prior art for wirelessly connecting a non-contact IC (Integrated Circuit) tag to a wireless LAN (Local Area Network), a Bluetooth (Ericsson trademark) communication system, etc. is disclosed in Patent Document 1, but the concealment length There is no description about the scale.

JP2003-110458

  An object of the present invention is to provide a concealed long object display device that can easily grasp the laying state of a long object provided in a concealment place at the site of the concealment place. .

The present invention is a tag provided in association with a concealed long object, the tag having a memory in which position information in the concealment place of the long object is stored,
Display means having a two-dimensional display screen;
Display of concealed long objects, comprising: display control means for reading position information stored in a memory and displaying a drawing showing a long object extending in a concealed place on a display screen of the display means Device.

  In the invention, it is preferable that the position information includes a predetermined direction and a distance along which the long object extends along the direction.

According to the present invention, the direction is a direction corresponding to an azimuth.
In the invention, it is preferable that the position information further includes a vertical direction.

  According to the present invention, a tag is provided in connection with a concealed long object, for example, near a connection port of a pipe connected to a gas meter disposed on the ground that is interposed in the middle of an underground pipe that transports city gas. The position information indicating the position of the long object in the concealment place is stored in the memory provided in the tag. With this position information, it is possible to accurately know the laying situation in the concealment place of the long object. The stored contents of the memory are read by the display control means and displayed on a two-dimensional display screen of a display means such as a liquid crystal display panel, a cathode ray tube or a printer that prints on recording paper. Accordingly, it is possible to easily grasp the laying state of the long object in the concealment place. Therefore, maintenance and inspection of long objects and other work can be performed easily. For example, soil excavation work for exposing underground pipes can be performed accurately, and unnecessary excavation work needs to be performed. Disappear. The display screen also includes printer recording paper.

Since the tag is provided in connection with the concealed long object, it is not necessary to look at the map drawing stored in the gas construction company as described in relation to the prior art, and the long object is embedded. It is possible to easily grasp the laying situation of a long object in a short time at the site of a concealed place. This tag may be a so-called non-contact IC tag capable of transmitting and receiving electrical signals without contact, or, for example, an RFID tag (Radio Frequency Identification)
(Tag).

  In order to reduce the storage capacity of the memory, the position information is preferably a character including characters such as alphabets and numbers and symbols such as hyphens, commas, and decimal points. As long as this is allowed, image information of a drawing showing a long object extending in the concealment place may be stored.

  In the configuration in which the position information is displayed by the character as described above, for example, the display information may include a predetermined direction and a distance along which the long object extends along the direction. The direction corresponding to the azimuth may be included, and the vertical direction of the long object may be included.

In the present invention, the memory is a nonvolatile memory,
The tag
A tag transmitting and receiving antenna;
A tag transmission circuit that reads the stored contents of the memory and transmits it to the tag transmission / reception antenna;
A tag receiving circuit to which a received signal from the tag transmitting / receiving antenna is provided;
And a power supply circuit for supplying the power obtained by the tag receiving circuit to the transmitting circuit.

In the present invention, the memory can rewrite the stored contents,
Position information creating means for creating position information to be stored in the memory;
Including an operation-side transmission / reception antenna and a transmission circuit for transmitting position information from the position-information creating means by the operation-side transmission / reception antenna;
The tag receiving circuit includes a rewriting circuit for storing and rewriting the received position information in a memory.

According to the present invention, a non-volatile memory that can retain stored contents even when power is not supplied is stored in the non-volatile memory, for example, an EEPROM (Electronic
Erasable Programmable Read Only Memory) or FRAM
(Flash Randam Access Memory). The received signal is received by the tag transmitting / receiving antenna provided in the tag and applied to the tag receiving circuit, whereby the power supply circuit generates DC power or the like and supplies it to the tag transmitting circuit, thereby the tag transmitting circuit. Reads out the location information which is the stored contents of the memory and generates a transmission signal representing the location information from the tag transmitting / receiving antenna.

  The memory is preferably rewritable in the store contents. When the situation in which the long object is laid is changed on the site, the laying condition of the long object corresponding to the change is changed by the position information creating means. The information is created and given from the transmission circuit to the tag transmission / reception antenna via the operation-side transmission / reception antenna to operate the rewriting circuit, and the position information is rewritten in the memory. Therefore, it is possible to easily update the laying situation in the concealment place for long objects.

  Further, the present invention is characterized in that the display means displays either one of a plan view and a perspective view showing a long object on a display screen.

  According to the present invention, at least one of a plan view and a perspective view is displayed on the two-dimensional display screen of the display means in order to display the laying situation of the long object. As a result, the operator can intuitively grasp the installation status of long objects at the site of the concealed place, and perform various operations such as maintenance and repair of long objects easily and accurately. Will be able to.

  According to the present invention, it is possible to easily grasp the situation of a long object provided in a concealment place at the site of the concealment place. As a result, maintenance and repair of long objects, repairs, and other various operations can be easily and quickly performed without waste.

  FIG. 1 is a block diagram showing an overall electrical configuration of a concealed long display device 1 according to an embodiment of the present invention. The concealed long display device 1 basically includes a tag 2 and a device body 3. The apparatus main body 3 is connected to the processing circuit 6, which is realized by an operation transmitting / receiving antenna 4, an operating device 5 connected to the antenna 4, a microcomputer connected to the operating device 5, and the like. Display means 7. The display means 7 is realized by a configuration having a two-dimensional display screen such as a liquid crystal display panel or a cathode ray tube. The display means 7 may also be realized by a printer or the like that prints and displays a two-dimensional drawing on recording paper. Good.

  FIG. 2 is a sectional view showing the city gas gas meter 8 to which the tag 2 is attached, and FIG. 3 is a sectional view showing a piping system related to the gas meter 8. The gas meter 8 is provided with an inlet connection port 11 to which city gas is supplied, and a connection port 12 which is an outlet of the city gas whose flow rate is measured. A rise pipe 13 is connected to these connection ports 11 and 12. , 14 are connected to each other. The gas meter 8 is provided near the building 15, and pipes 13 and 14 are embedded in the site of the building 15 and installed. In other embodiments of the present invention, the tag 2 may be provided on the surface of the riser 13 exposed above the ground surface 16 as indicated by reference numeral 2a, or alternatively provided on the riser 14. Further, it may be provided in a building 15 or the like in the vicinity of the gas meter 8. In this way, it is provided in relation to the pipes 13 and 14 in a place that is convenient for grasping the laying situation of the pipe 14 in the soil 17. This pipe 13 is laid in the site of the building 15 as indicated by reference numeral 18, and is further connected to a main pipe 22 embedded in a road 21 via a public-private boundary 19. The tag 2 is attached by an adhesive or a synthetic resin tape.

  FIG. 4 is a front view showing the display screen 23 displayed by the display means 7. In FIG. 4 (1), the display screen 23 displays position information 24 stored in the tag 2, and also displays a construction contractor 65 and a construction date 66 on which the construction contractor performs maintenance and inspection. The embodiment of FIG. 4 (2) is similar to the embodiment of FIG. 4 (1), but instead of the position information “W0.3” representing 0.3 m to the west of FIG. 4 (1), FIG. In 4 (2), “W0.3SGP25A” is displayed. That is, in FIG. 4 (2), “SGP25A” representing information on the material SGP and the diameter 25A of the pipes 13 and 18 is additionally displayed in the position information “W0.3” as described later. In the subsequent position information “S0.5-K-S0.5-...”, The material and diameter information is omitted, and thus the material and diameter information is added only to the first position information following the starting point M. The store capacity is reduced.

  FIG. 5 is a plan view showing a laying state in which the pipe 18 embedded in the soil 17 displayed on the display screen 25 of the display means 7 extends. On the display screen 25 in FIG. 5A, the direction of the azimuth 26 indicating east, west, south, and north is displayed. This azimuth 26 is shown as north on the display screen 25. In the processing circuit 6 corresponding to the azimuth 26 of the display screen 25, the position of the gas meter 8 that is the starting point is the origin 27, the X-axis direction in the XYZ three-dimensional coordinate system is east, the Y-axis direction is north, and the Z-axis direction is A coordinate system 28 that is set vertically upward is set. FIG. 5A corresponds to the above-described FIG. In another embodiment of the present invention, in addition to the distance of the position information as shown in FIG. 5 (2) corresponding to FIG. 4 (2), information on the material and the diameter is also displayed.

  FIG. 6 is a front view showing a perspective view of the pipe 13 and the like displayed on the three-dimensional display screen 31 of the display means 7 and the pipe 18 embedded in the ground. The azimuth 32 is shown on the display screen 31 in FIG. This azimuth 32 has the upper right 30 degrees on the display screen 31 as north. Corresponding to this azimuth 32, the processing circuit 6 sets the XYZ three-dimensional coordinate system 28 described above. FIG. 6A corresponds to FIG. 4A described above. FIG. 6 (2) corresponds to the embodiment of FIG. 4 (2) described above. In FIG. 6 (2), not only the distance of the position information but also the information of the material and the diameter are displayed.

  FIG. 7 is a block diagram showing an electrical configuration of the tag 2. The tag 2 includes a semiconductor chip 33 made of an integrated circuit IC and a tag transmission / reception antenna 34 connected to the semiconductor chip 33.

  FIG. 8 is a plan view of the tag 2, and FIG. 9 is a side view of the tag 2. The tag 2 has a rectangular base plate 35 such as a rectangle, and has a thin plate-like base 35. A semiconductor chip 33 is embedded in the base 35, and an antenna 34 is wound and embedded in a loop. Configured. The substrate 35 may be made of a material such as an electrically insulating synthetic resin. The tag 2 may be in the form of a match stick, for example, or may be a flat disk such as a coin such as a 1-yen coin, or may have other shapes.

  FIG. 10 is a simplified electric circuit diagram for explaining a transmission / reception operation between the tag transmission / reception antenna 34 of the tag 2 and the device transmission / reception antenna 4 of the operation device 5. An alternating magnetic flux 37 is generated from the operation transmitting / receiving antenna 4, and this magnetic flux 37 links the tag transmitting / receiving antenna 34, whereby an AC signal is induced in the tag transmitting / receiving antenna 34, and the induced AC signal is decoded. Thus, data can be obtained and power for the operation of the semiconductor chip 33 can be obtained.

  Referring to FIG. 7 again, the semiconductor chip 33 has a memory 38. The memory 38 stores position information indicating the positions of the pipes 13 and 18 including the portion embedded in the soil 17 connected to the gas meter 8 from the position of the gas meter 8 serving as the starting point. Such a memory 38 is realized by an EEPROM, a flash RAM, or the like, and is preferably a non-volatile memory that does not require power to hold the store contents, and the store contents can be rewritten and erased. You can also add new location information.

  The semiconductor chip 33 also includes a tag receiving circuit 41. A reception signal from the antenna 34 is given to the tag reception circuit 41. The power supply circuit 42 rectifies the AC power obtained by the tag receiving circuit 41 to generate DC power. The DC power obtained from the power supply circuit 42 is given to the tag transmission circuit 43, and the operation of the transmission circuit 43 becomes possible. Thus, the tag 2 does not need to be equipped with a battery. The tag transmission circuit 43 receives position information, which is stored contents of the memory 38 when power is applied, and supplies the position information to the antenna 34 to transmit an electric signal representing the stored contents.

  The tag receiving circuit 41 provided in the semiconductor chip 33 of the tag 2 also includes a rewrite circuit 45. The rewrite circuit 45 decodes the received signal received by the tag transmitting / receiving antenna 34, obtains position information to be stored in the memory 38 included in the received signal, and stores the decoded position information in the memory 38. And the contents of the memory 38 are rewritten. The rewrite circuit 45 can also serve to additionally write location information to the memory 38 and can also serve to erase the stored contents of the memory 38.

  FIG. 11 is a block diagram showing a specific electrical configuration of the entire apparatus body 3. The transmission / reception antenna 4 for operation is connected to the reception antenna 51 of the controller device 5, decodes the reception signal including the position information stored in the memory 38 from the tag transmission circuit 43, and outputs a signal representing the position information, This is given to the processing circuit 6. The operating device 5 may be detachable from the processing circuit 6 by a connector 52, whereby the operating device 5 may be configured to be portable for an operator and handled with one hand. A memory 53 is connected to the reception circuit 51, and position information included in a reception signal received by the reception circuit 51 is stored in the memory 53.

  The operation device 5 is also provided with an input device 54 which is a position information creating means operated by an operator to create position information. The position information obtained by the input device 54 is encoded by the transmission circuit 55, excites the transmission / reception antenna 4 for operation, is transmitted, and is received by the antenna 34 of the tag 2 as described above. Thus, the position information to be stored in the memory 38 of the tag 2 is created by the input device 54.

  FIG. 12 is a front view of the controller device 5. The input device 54 provided in the operating device 5 includes a plurality of push buttons 56, and thereby position information can be input. The position information includes a predetermined direction and a distance along which the tubes 13 and 18 extend along the direction, and further includes a vertical direction. The said direction is a direction corresponding to the direction of east, west, north, and south. The drawing data of the position information is composed of the value indicating the direction and the value indicating the point by the distance, and a hyphen “-” is used as a break between each data. The value indicating the direction is expressed effectively, for example, with 1 m as a unit and up to one decimal place. The value indicating the direction is predetermined as shown in Table 1.

  Thus, the value indicating the direction is expressed as shown in Table 2, for example, and position information is determined.

As shown in Table 2 above, for example, the information that the line extends to 1.0 m linearly to the south is that the letter S, which is an alphabetic character representing south, and the numerical value 1.0 representing the distance 1.0 m are They are set in this order.
Values indicating points constituting the position information are set as shown in Table 3.

  Thus, for example, when starting from the position of the meter 8, M is used, and the position of the public-private boundary 19 is indicated by an alphabetic letter K, as shown in Table 4.

In this way, as an example, the position information from [meter] to [0.5 m south] [3.0 m down]
... MS-S0.5-D3.0
As another example, from [meter] to [down 1.5m] [ground] [down 0.5m] [west 1.0m] [public-private boundary] [west 0.5m ] [Main]
... M-D1.5-G-D0.5-W1.0-K-W0.5-B
It can be expressed as. Such position information can be input by sequentially operating the push buttons 56 of the input device 4.

  In addition to the position information shown in Tables 1 and 2 above, information on the material and diameter of the tubes 13 and 18 is also stored in the memory 33. That is, the material of the pipes 13 and 18, for example, SGP which is a steel pipe for gas piping, or PE which is a polyethylene pipe, and information on the diameter of the pipes 13 and 18, for example, 25A or 50A are stored in the memory 33, It can be read out on-site in the same way.

  The frequency of the electromagnetic wave signal transmitted from the tag transmission circuit 43 and the transmission circuit 55 of the operating device 5 is, for example, 125 to 135 kHz, for example, preferably 125 kHz. This is preferable in the present invention because there is an advantage that transmission and reception by the antennas 34 and 4 are ensured without being reflected by the metal constituting the tubes 13 and 18 and the like, and malfunction of transmission and reception by liquid such as rain water is less likely to occur.

  FIG. 13 is a flowchart for explaining the operation of the processing circuit 6 provided in the apparatus body 3. Moving from step s 1 to step s 2, the processing circuit 6 receives the position information which is the stored contents of the decrypted memory 33 from the receiving circuit 51 of the controller device 5 through the connector 52. This position information is, for example, the contents indicated by reference numeral 24 shown in FIG.

  In step s3, a value indicating the first point of the position information 24, for example, M which is the meter 8 is set as a starting point, and this M represents the gas meter 8. In step s4, as shown in Table 5, the coordinate values of the XY three-dimensional orthogonal coordinate system 28 set in advance in the processing circuit 6 for each of the spot numbers 1 to p based on the position information subsequent to the value M indicating the starting point. Each direction is converted into a value indicating a point into (xi, yi, zi).

  As shown in FIGS. 5 and 6, the three-dimensional coordinate system 28 has the north N in the Y-axis direction, the south S in the opposite direction of the Y-axis, the east E in the X-axis direction, and the west W Is set in the reverse direction of the X axis, and the upper U is set in the Z axis direction and the lower D is set in the reverse direction of the Z axis. A numerical value representing the distance is set by converting the length in the two-dimensional display screens 25 and 31 at a predetermined scale ratio.

  Thus, in step s5, a plan view in the XY plane to be displayed is calculated and created on the display screen 25. In step s6, an XYZ three-dimensional perspective view to be displayed on the display screen 31 is calculated and created. Thus, the respective points are obtained by calculating the coordinate values in the XYZ three-dimensional coordinate system, and the respective coordinate values are connected by a straight line to obtain the above-described plan view and perspective view.

  In step s7, the plan view and perspective view obtained in steps s5 and s6 are displayed on the display screens 25 and 31 of the display means 7 as shown in FIGS.

  FIG. 14 is a front view of the display means 7. The display means 7 is provided with two-dimensional display screens 23, 25, and 31, and may further be provided with input means 61 and 62 for operation.

  A plan view and a perspective view can be selected by the input means 62 and can be individually displayed on the display screen 38. The isometric view of the input means 62 represents a perspective view. The display screen 38 is a single display screen including the display screens 25 and 31 that are adjacent to each other in the upper and lower directions in FIG. 14, and further shows a plan view and a perspective view, and more accurately shows the laying state of the tubes 13 and 18. It becomes easy to grasp.

  FIG. 15 is a diagram for explaining position information according to another embodiment of the present invention. In the above-described embodiment, four directions, east, west, south, and north, are used as directions. In another embodiment of the present invention shown in FIG. 15, for example, a plurality of directions are used, such as a watch dial. Divided into 60 equal parts, north corresponds to 00, east corresponds to 15, south corresponds to 30, west corresponds to 45, and the four directions, between east, west, north and south Further, it may be divided into a plurality of, for example, 15 equal parts. As a character representing each azimuth, the two-digit number 00 to 59 is used to specify a more accurate azimuth, and the two-digit number is used as position information corresponding to the above-mentioned east, west, north, and south directions. be able to.

  Instead of alphabets and numbers in the position information, characters such as hiragana and katakana may be used, other characters may be used, and symbols may be used. Instead of the direction of east, west, south, and north, a predetermined direction other than the direction may be determined. In addition, the value indicating the direction is represented by a linear distance in each of the above-described embodiments, but may represent a distance along a predetermined curved radius of curvature. Realized by contractors.

1 is a block diagram showing an overall electrical configuration of a concealed long display device 1 according to an embodiment of the present invention. It is sectional drawing which shows the gas meter 8 for city gas with which the tag 2 was mounted | worn. 3 is a cross-sectional view showing a piping system related to the gas meter 8. FIG. It is a front view which shows the display screen 23 displayed by the display means 7. FIG. It is a top view which shows the installation condition where the pipe | tube 18 embed | buried in the soil 17 displayed on the display screen 25 of the display means 7 is extended. It is a front view which shows the perspective view of the pipe | tube 18 embed | buried under the ground displayed on the three-dimensional display screen 31 of the display means 7. FIG. 3 is a block diagram showing an electrical configuration of a tag 2. FIG. 3 is a plan view of a tag 2. FIG. It is a side view of tag 2. FIG. 5 is a simplified electric circuit diagram for explaining a transmission / reception operation between the tag transmission / reception antenna 34 of the tag 2 and the device transmission / reception antenna 4 of the operation device 5. 3 is a block diagram showing a specific electrical configuration of the entire apparatus main body 3. FIG. 3 is a front view of the operating device 5. FIG. 4 is a flowchart for explaining the operation of a processing circuit 6 provided in the apparatus main body 3. It is a front view of the display means. It is a figure for demonstrating the positional information of other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Tag 3 Apparatus main body 4 Operation transmission / reception antenna 5 Operation apparatus 6 Processing circuit 7 Display means 8 Gas meter 23,25,31,58 Display screen 24 Position information 26 Direction 27 Origin 28 Coordinate 33 Semiconductor chip 34 Transmission / reception antenna for tag 38 Memory 41 Tag Reception Circuit 42 Power Supply Circuit 43 Tag Transmission Circuit 45 Rewrite Circuit 51 Reception Circuit 54 Input Device 55 Transmission Circuit

Claims (7)

A tag provided in connection with the concealed long object, the tag having a memory in which position information of the concealment place of the long object is stored;
Display means having a two-dimensional display screen;
Display of concealed long objects, comprising: display control means for reading position information stored in a memory and displaying a drawing showing a long object extending in a concealed place on a display screen of the display means apparatus.   2. The concealed long object display device according to claim 1, wherein the position information includes a predetermined direction and a distance along which the long object extends.   The concealed long object display device according to claim 2, wherein the direction is a direction corresponding to an azimuth.   The display device according to claim 2, wherein the position information further includes a vertical direction. The memory is a non-volatile memory,
The tag
A tag transmitting and receiving antenna;
A tag transmission circuit that reads the stored contents of the memory and transmits it to the tag transmission / reception antenna;
A tag receiving circuit to which a received signal from the tag transmitting / receiving antenna is provided;
5. The concealed long display device according to claim 1, further comprising: a power supply circuit that supplies power obtained by the tag receiving circuit to the transmitting circuit. The memory can rewrite the store contents,
Position information creating means for creating position information to be stored in the memory;
Including an operation-side transmission / reception antenna and a transmission circuit for transmitting position information from the position-information creating means by the operation-side transmission / reception antenna;
6. The concealed long object display device according to claim 5, wherein the tag receiving circuit includes a rewriting circuit for storing and rewriting the received position information in a memory.   7. The concealed long object display device according to claim 1, wherein the display unit displays either a plan view or a perspective view of the long object on a display screen.

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