JP6595379B2 - Piping sorting device, piping sorting method and piping positioning system - Google Patents

Description

  The present invention relates to a pipe sorting device, a pipe sorting method, and a pipe positioning system for sorting uses of buried pipes.

  Currently, various pipes such as gas pipes and water pipes are embedded in the ground as a basic line of daily life. As a method for obtaining such piping information, a method disclosed in Patent Document 1 is known.

  In the method of Patent Document 1, management information about piping is stored in advance, and a transponder that can transmit this management information as a response signal and a transmission / reception device that transmits / receives to / from the transponder are used. The transponder is fixed at predetermined intervals in the extending direction of the buried pipe. The ground transmission / reception device can issue a call signal, receive a response signal from the transponder, and read management information of the pipe from the ground.

Japanese Patent Laid-Open No. 06-232783

  However, in the method of Patent Document 1, it is necessary to fix the transponder to the pipe in advance and embed it in the ground. For this reason, since information cannot be obtained from the pipes to which the transponder is not fixed, it is necessary to make a trial excavation. Therefore, when selecting the use of the mixed pipe (for example, selecting a gas pipe or a water pipe), the appearance of the pipe is observed after excavation.

  In such sorting by appearance observation, it may be difficult to distinguish between pipes such as gas pipes and water pipes. In particular, the use of pipes with an older age increases the difficulty of sorting by appearance. Even in such a case, conventionally, piping is selected based on the operator's intuition and experience, and it takes time for the selection and the accuracy of the selection is not sufficient.

  This invention is made | formed in view of this point, and it aims at provision of the piping selection apparatus, the piping selection method, and piping positioning system which can select the use of piping accurately and simply.

  The pipe sorting apparatus of the present invention includes a radiation source part and a radiation detection part that are mounted across a pipe buried in the ground, and counts the count value of radiation emitted from the radiation source part and transmitted through the pipe. A pipe sorting device to detect by a radiation detection unit, an input unit for directly or indirectly inputting pipe information about the pipe, and calculating a predicted value of the count value based on the pipe information, Or a comparison information creation unit that calculates a predicted value of any parameter of the piping information based on a detection result of the radiation detection unit, and a comparison between the predicted value of the count value and the detection result of the radiation detection unit, or A determination unit that selects a use of the pipe based on a comparison between the predicted value of the parameter and the input value of the parameter input directly or indirectly through the input unit; Te, characterized in that the absorption coefficient of the pipe in at least the thickness of the pipe and the radiation source unit is directly or indirectly input through the input unit.

  The pipe selection method of the present invention includes an input step for directly or indirectly inputting pipe information of a pipe buried in the ground, and a mounting step for mounting the radiation source section and the radiation detection section across the pipe. And a detection step of detecting a count value of radiation emitted from the radiation source section and transmitted through the pipe by the radiation detection section, and a predicted value of the count value is calculated based on the pipe information of the input step. Or a comparison information creation step for calculating a predicted value of any parameter of the piping information based on the detection result of the detection step, a predicted value of the count value of the comparison information creation step, and a detection result of the detection step Or a comparison between the predicted value of the parameter in the comparison information creation step and the input value of the parameter in the input step. Which comprises carrying out the determination step of selecting Applications.

  Further, the piping positioning system of the present invention includes a radiation source unit and a radiation detection unit that are mounted across a piping buried in the ground, and a count value of radiation radiated from the radiation source unit and transmitted through the piping. Is a pipe positioning system including a pipe sorting device for detecting radiation by the radiation detection unit and a center for obtaining information from the pipe sorting device, wherein the pipe sorting device obtains position information of the pipe sorting device. A GPS receiving unit, an input unit for directly or indirectly inputting piping information about the piping, and calculating a predicted value of the count value based on the piping information, or detection of the radiation detecting unit A comparison information creation unit that calculates a predicted value of any parameter of the piping information based on the result, a comparison between the predicted value of the count value and the detection result of the radiation detection unit, or a prediction of the parameter A determination unit that selects a use of the pipe based on a comparison between the value and an input value of the parameter directly or indirectly input through the input unit, a selection result of the determination unit, and the position information of the GPS A wireless transmission unit that wirelessly transmits the selection result, the wireless reception unit that wirelessly receives the selection result and the position information wirelessly transmitted from the wireless transmission unit of the pipe selection device, and the wireless reception A map creation unit that creates map information that associates the selection result and the position information received wirelessly and maps the map on a predetermined map.

  ADVANTAGE OF THE INVENTION According to this invention, the radiation which permeate | transmitted piping is detected, Based on the detection result and piping information from an input part, the use of piping can be selected easily with sufficient precision.

It is an external appearance perspective view of the piping selection device concerning a 1st embodiment. It is a front view of the said piping selection apparatus. It is a block diagram which shows the structure of the said piping selection apparatus. It is a functional block diagram of the control part in the said piping selection apparatus. It is a lineblock diagram of the piping positioning system concerning a 1st embodiment. It is a block diagram which shows the structure of the center in the said piping positioning system. It is a functional block diagram of the control part in the said center. It is a flowchart which shows an example of the piping selection method which concerns on 1st Embodiment. It is an external appearance perspective view of the piping selection apparatus which concerns on 2nd Embodiment. It is an external appearance perspective view of the piping selection apparatus which concerns on 3rd Embodiment. It is an external appearance perspective view of the piping selection apparatus which concerns on 4th Embodiment. It is an external appearance perspective view of the piping selection apparatus which concerns on 5th Embodiment. It is the perspective view which looked at FIG. 12 from the left-right opposite side. It is a front view of FIG. FIG. 13 is a rear view of FIG. 12. FIG. 13 is a left side view of FIG. 12. It is a right view of FIG. FIG. 13 is a plan view of FIG. 12. It is a bottom view of FIG. It is an external appearance perspective view of the piping selection apparatus which concerns on 5th Embodiment made into the form different from FIG. FIG. 21 is a front view of FIG. 20. It is a rear view of FIG. It is a top view of FIG. It is explanatory drawing of the pipe diameter measurement part which concerns on 5th Embodiment. It is explanatory drawing of the pipe diameter measurement part which concerns on 5th Embodiment.

  Hereinafter, the present embodiment will be described in detail with reference to the accompanying drawings. In the following description, unless otherwise specified, “up”, “down”, “left”, “right”, “front”, “rear” are based on the case viewed from the direction of arrow A in FIG. Use.

[First Embodiment]
FIG. 1 is an external perspective view of a pipe sorting apparatus according to the first embodiment. FIG. 2 is a front view of the pipe sorting apparatus. As shown in FIGS. 1 and 2, the pipe sorting device 10 is a device that sorts the use of the pipe P by being attached to the pipe P buried in the ground. In this embodiment, the pipes P that can be selected are used as gas pipes, water pipes, and miscellaneous pipes (communication / power supply pipes). However, other uses can be selected or other applications can be further selected. It may be possible to do so.

The pipe sorting apparatus 10 includes a radiation source unit 11 and a radiation detection unit 12 that are mounted with the pipe P interposed therebetween. The radiation source unit 11 includes a γ-ray source, and it is preferable to use a radiation source with design certification in the pipe sorting device 10. Examples of the γ-ray source include ¹³⁷ Cs or ⁶⁰ Co of 10 MBq or less. The radiation source unit 11 includes a radiation source container 11a that accommodates the radiation source. The radiation source container 11a is formed of a material that does not transmit radiation, for example, lead, and radiation emitted from the radiation source is emitted from the radiation unit. It is made not to radiate | emit from other than 11b. In the radiation source unit 11, radiation from the radiation source is emitted with directivity by the radiation unit 11b.

  The radiation detection unit 12 is configured by a detector that detects radiation such as γ rays emitted from the radiation source unit 11. Examples of the detector include a CsI detector and a NaI detector. The radiation detection unit 12 includes a container 12a having a box shape, and an incident unit through which radiation is incident is provided on a side surface of the container 12a.

  The pipe sorting apparatus 10 includes a radiation source holding body (holding body) 14 that holds the radiation source unit 11, a detection unit holding body (holding body) 15 that holds the radiation detection unit 12, and the holding bodies 14 and 15 upward. And an apparatus main body 16 to be held. The apparatus main body 16 is also a holding body that holds the radiation source unit 11 and the radiation detection unit 12 via the radiation source holding body 14 and the detection unit holding body 15.

  The radiation source unit 11 and the radiation detection unit 12 are opposed to each other by being held by the radiation source holding body 14 and the detection unit holding body 15. At this time, it arrange | positions so that the radiation radiated | emitted from the radiation source part 11 may inject perpendicularly with respect to the incident part of the radiation detection part 12. FIG.

  Contact portions 14 a and 15 a that are in contact with the pipe P are formed inside the radiation source holder 14 and the detection unit holder 15. The contact portions 14a and 15a are each formed by a pair of inclined edges that gradually expand toward the pipe P side. These inclined edges come into substantially point contact when the pipe sorting device 10 is mounted on the pipe P. By such point contact, the radiation direction from the radiation source unit 11 is positioned on a line orthogonal to the extending direction of the pipe P and passing through the center of the pipe P, and the incident part of the radiation detection unit 12 is positioned on the same line. Is done. As a result, even if the diameter of the pipe P changes, the radiation from the radiation source part 11 is transmitted through the part having the diameter of the pipe P and enters the radiation detection part 12.

  The upper ends of the radiation source holder 14 and the detection unit holder 15 are connected to the lower surface side of the apparatus main body 16 via an adjustment mechanism 18 (not shown in FIG. 1). The adjustment mechanism 18 adjusts the separation distance between the radiation source unit 11 and the radiation detection unit 12 according to the diameter of the pipe P. The adjustment mechanism 18 includes a pair of left and right rail members 18a extending in the left-right direction in the apparatus main body 16, and slider members 18b provided on the rail members 18a. The slider member 18b is guided by the rail member 18a so as to be movable in the left-right direction. The slider member 18 b is connected to the radiation source holder 14 and the detection unit holder 15, and their movement in the left-right direction is guided by the adjustment mechanism 18. Thereby, the separation distance of the radiation source part 11 and the radiation detection part 12 is adjusted according to the diameter dimension of the piping P via the adjustment mechanism 18, and it becomes the piping P of various diameter dimensions (for example, nominal diameter: 80A-300A). The pipe sorting device 10 can be attached.

  The slider member 18b may be movable in the left-right direction by a drive mechanism including a drive source such as a motor. At this time, a sensor for measuring the diameter of the pipe P is provided, the amount of movement of the slider member 18b is determined according to the output result of the sensor, and the distance between the radiation source unit 11 and the radiation detection unit 12 is adjusted. May be.

  The sizes of the radiation source holder 14 and the detection unit holder 15 are formed to have vertical widths corresponding to various diameters of the pipes P to be selected. In other words, when the contact portions 14a and 15a are brought into contact with the pipe P having the maximum diameter among the pipes P to be selected, the apparatus main body 16 does not interfere with the pipe P.

  The apparatus body 16 is formed in a flat shape having a shape along the T shape in a top view and having a thickness in the vertical direction. The apparatus main body 16 includes a front forming body 20 that extends in the left-right direction and a rear forming body 21 that extends in the front-rear direction and continues to the rear portion of the front forming body 20. An adjustment mechanism 18 is provided on the lower surface of the front forming body 20. A grip portion 22 is attached to the upper surface of the rear forming body 21. The grip portion 22 is provided in a shape and size suitable for the operator to hold it with his / her hand, so that the pipe sorting device 10 can be easily carried and handled.

  Inside the apparatus main body 16, a battery can be built in, and a connection port (not shown) for connecting the power supply cable C is provided on the rear end side of the rear forming body 21. Therefore, when a secondary battery is used as a power source, charging can be performed via the power supply cable C connected to the connection port. In addition, you may make it operate each part of the piping selection apparatus 10 with the electric power supplied from the power supply cable C, without using a battery.

  On the upper surface of the front forming body 20, a raised portion 20a having a substantially rectangular shape in a top view is formed. The raised portion 20a is provided with two lighting portions 24a and 24b and a touch panel 24c. The two lighting parts 24a and 24b are provided side by side at the front end of the raised part 20a. The two lighting parts 24a and 24b are composed of LEDs or the like that emit different colors. For example, one lighting part 24a emits red light and the other lighting part 24b emits green light. Thereby, the sorting result can be displayed by changing the lighting units 24a and 24b that emit light according to the sorting result of the pipe P.

  A touch panel 24c is provided on the upper surface of the raised portion 20a. On the touch panel 24c, the sorting result of the pipe P is displayed, and in addition to this, a calculation result based on radiation detection other than the sorting result may be displayed. The touch panel 24c also functions as an input unit to be described later for inputting piping information about the piping P by an operation by an operator.

  FIG. 3 is a block diagram showing the configuration of the pipe sorting device. As shown in FIG. 3, the pipe sorting device 10 includes a control unit 101, a measurement unit 102, a wireless communication unit 103, an input unit 104, a display unit 105, a storage unit 106, and a GPS (Global Positioning System) reception. Unit 107 and power supply unit 108.

  The control unit 101 includes a central processing unit (CPU) and the like, and controls the entire pipe sorting device 10. The control unit 101 performs various arithmetic processes on information input from the measurement unit 102, the wireless communication unit 103, and the like, and various control processes (display control of the display unit 105, etc.) according to a program stored in the storage unit 106. I do.

  The measurement unit 102 includes a radiation source unit 11 and a radiation detection unit 12 (see FIG. 1). The measurement unit 102 counts the radiation emitted from the radiation source unit 11 and incident on the radiation detection unit 12, measures the count value, and outputs the measured value to the control unit 101. Note that the measurement unit 102 may output a dose value obtained by converting the count value into a dose.

  The wireless communication unit 103 is a communication interface, and transmits / receives various information, data, and commands to the center 4 to be described later by wireless communication through the base station 3 (see FIG. 5). Therefore, the wireless communication unit 103 functions as a wireless transmission unit and a wireless reception unit. For example, the wireless communication unit 103 transmits the measurement result information of the measurement unit 102 output to the control unit 101 to the center 4 and receives various types of information processed by the center 4 based on this information.

  The input unit 104 includes a touch panel 24c (see FIG. 1), acquires data (for example, piping information described later) from an operator or the like, and outputs the data to the control unit 101. As the input unit 104, keys or operation buttons operated by an operator may be used in addition to the touch panel 24c or instead of the touch panel 24c. In addition, the input unit 104 may acquire data from an external device such as a personal computer as a communication interface by wired or wireless communication, or may be an interface such as a slot to which a storage medium such as a memory card incorporating data can be connected. May be.

  The display unit 105 includes two lighting units 24a and 24b (see FIG. 1) and a touch panel 24c, and further includes a controller for controlling them. The display unit 105 displays the calculation result of the control unit 101 by switching on and off the lighting units 24a and 24b, or displays them as characters, images, graphs, other icons, etc. as a display screen on the display area of the touch panel 24c. To do.

  The storage unit 106 includes a RAM (Random Access Memory), a ROM (Read Only Memory), a nonvolatile memory, and the like. In the ROM, a program for the control unit 101 to perform various calculations and controls, a program for functioning as an application, data, and the like are stored. The RAM is used as a work area of the control unit 101, and measurement result information of the measurement unit 102, information received by the wireless communication unit 103, and the like are stored via the control unit 101. The RAM temporarily stores programs and data read from the ROM, data input from the input unit 104, calculation results executed by the control unit 101 according to various programs, and the like. In the nonvolatile memory, data that needs to be stored for a long time is stored among the data generated by the calculation of the control unit 101.

  The GPS receiver 107 receives a GPS signal emitted from a GPS satellite by a GPS antenna and processes the received signal. By this processing, the position information (coordinate coordinates) of the pipe sorting device 10 in real time is measured and output to the control unit 101. The GPS receiving unit 107 is provided so as to be integrated with the radiation detecting unit 12 (see FIG. 1) such as the inside of the apparatus main body 16 (see FIG. 1).

  The power supply unit 108 includes a primary battery such as a dry battery, a secondary battery that can be repeatedly charged and discharged, or a power supply cable C (see FIG. 1) connected to a commercial power supply. Supply power to the electrical system.

  FIG. 4 is a functional block diagram of a control unit in the pipe sorting device. As illustrated in FIG. 4, the control unit 101 according to the present embodiment functions as a comparison information creation unit 101a, a determination unit 101b, a display control unit 101c, and a transmission control unit 101e. These functional blocks are realized by the control unit 101 executing a program stored in the storage unit 106. The functional block of the control unit 101 shown in FIG. 4 shows only the configuration related to the present invention, and the other configuration is omitted.

Piping information about the piping P (see FIG. 1) is input through the input unit 104 directly or indirectly. Here, the piping information is not limited to the information on the piping P, but includes information on the heat insulating material and the exterior plate as the exterior material of the piping P and the information on the contents of the piping P, and is exemplified in Table 1, for example. Is. Specifically, the piping information includes the diameter, thickness, material, and absorption coefficient shown in Table 1 below, and is stored in the storage unit 106 (see FIG. 3). Furthermore, as the device information, the line type (in this case, ¹³⁷ Cs is exemplified) and collimator information, the type of detector (in this case, CsI is exemplified) and size, the distance between the radiation source and the detection unit, etc. It may be stored in the storage unit 106. In Tables 1 and 2, specific names and numerical values for each item are omitted. The thickness of water and gas may be calculated by subtracting a value obtained by doubling the pipe thickness from the diameter of the pipe P. Note that the thickness and the absorption coefficient are not limited to the case where numerical values themselves are input, and information that can indirectly calculate these numerical values may be input.

  The comparison information creation unit 101a calculates the predicted value of the count value based on the piping information regarding the piping P (see FIG. 1) input directly or indirectly. Specifically, the comparison information creation unit 101a calculates a predicted value of the count value based on the following formula 1. The relationship between the absorption coefficient μ and the density ρ is as shown in the following formula 2.

  For example, the comparison information creation unit 101a calculates the predicted value of the count value for each use of the pipe P, that is, in the case of a gas pipe (content is gas) and in the case of a water pipe (content is water). In the case of a gas pipe, the theoretical value is calculated using the gas absorption coefficient on the assumption that the gas pipe has an inner diameter (pipe diameter-pipe thickness x 2), and in the case of a water pipe, the inner diameter of the water pipe (Pipe diameter−pipe thickness × 2) The predicted value of the count value is calculated using the water absorption coefficient on the assumption that attenuation by water splitting is effective. Note that the gas absorption coefficient is extremely small as compared with the water absorption coefficient, and may be ignored.

  The determination unit 101b selects the use of the pipe P based on the comparison between the predicted value of the count value obtained by the comparison information creation unit 101a and the count value (actual value) as the detection result of the radiation detection unit 12. In this comparison, the determination unit 101b may not directly use the predicted value of the count value obtained by the comparison information creation unit 101a as comparison information. The determination unit 101b multiplies the predicted value by a predetermined coefficient to calculate an upper limit value and a lower limit value that serve as threshold values as comparison information for each use of the piping P, and the radiation detection unit 12 within the threshold range. It is better to compare the detection results.

  For example, the determination unit 101b calculates a threshold value by multiplying a predicted value of a count value when the pipe P is a “gas pipe” by a predetermined coefficient and the like, and if the measured value falls within this threshold range, the “gas pipe” ”And sort the usage of piping. In addition, the determination unit 101b calculates a threshold value by multiplying the predicted value of the count value when the pipe P is “water pipe” by a predetermined coefficient, and when the measured value falls within this threshold range, “water pipe” "It is good to sort the usage of the pipe. If the measured values do not fall within the threshold ranges of both the “gas pipe” and the “water pipe”, the use of “miscellaneous piping” and piping may be selected. Further, the determination unit 101b may output a display corresponding to these uses, that is, a command for causing the display unit 105 to perform a determination result to the display control unit 101c.

  When the determination of the pipe P is, for example, two choices of a gas pipe and a water pipe, the comparison information creation unit 101a calculates only the predicted value of the count value of the “gas pipe”, and the determination unit 101b sets the “gas pipe” If the measured value falls within this threshold range by multiplying the predicted value of the count value by a predetermined coefficient, etc., and if the measured value falls within this threshold range, the usage of the “gas pipe” and piping is selected, and the measured value falls within this threshold range. If the value does not fit, the usage of “water pipe” and piping may be selected. In contrast to the above, only the predicted value of the count value of “water pipe” is calculated, the threshold value is calculated by multiplying the predicted value of the count value in the case of “water pipe” by a predetermined coefficient, etc. If the measured value falls within the range, the usage of the “water pipe” and the piping may be selected. If the measured value does not fall within the threshold range, the usage of the “gas pipe” and the piping may be selected.

  In the above description, the determination unit 101b calculates a threshold value by multiplying the prediction value of the count value by a predetermined coefficient and compares the measured value within the threshold range. 101b may calculate the threshold value by multiplying the measured value by a predetermined coefficient and compare the predicted value of the count value within this threshold value range and select the usage of the pipe P.

  The determination method described above is merely an example, and other determination methods may be used. For example, the comparison information creation unit 101a calculates (back-calculates) the predicted value of any parameter of the piping information based on the actual value (detection result) of the count value detected by the radiation detection unit 12, and the determination unit 101b Based on the comparison between the predicted value of the parameter and the input value of the parameter directly or indirectly input through the input unit 104, the usage of the pipe P may be selected.

  The parameters are not limited to the diameter, thickness, and absorption coefficient of piping, water, and gas, and the diameter, thickness, and absorption coefficient of a heat insulating material as an exterior material or an exterior plate can also be used. Assuming that the contents of the pipe P are water or gas, whether the contents of the pipe P are assumed by comparing the predicted value of any parameter back-calculated as a black box with the input value of the parameter Can be screened. At this time, similarly to the above, the determination unit 101b performs multiplication of a predetermined coefficient on one of the parameter and the input value to calculate the upper limit value and the lower limit value, and whether the other falls within this threshold range. Please compare.

  For example, the determination unit 101b calculates a threshold value by multiplying a predicted value of a parameter when the content of the pipe P is assumed to be a gas by a predetermined coefficient, and the input value falls within this threshold value range. Select the use of gas pipes and pipes. In addition, the determination unit 101b calculates a threshold value by multiplying the predicted value of the parameter when the content of the pipe P is assumed to be water, by a predetermined coefficient, and the input value falls within this threshold value range. Sort the usage of “water pipe” and piping. If the input value does not fall within the threshold range of both the “gas pipe” and the “water pipe”, the “miscellaneous piping” and the usage of the piping may be selected.

  The display control unit 101c controls to switch the display of the two lighting units 24a and 24b and the touch panel 24c (see FIG. 1) in accordance with the command output from the determination unit 101b. For example, when the sorting result of the use of the pipe P is a gas pipe, the red lighting part 24a is turned on, and when it is a water pipe, the green lighting part 24b is turned on, or "gas pipe" and "water supply" are displayed on the touch panel 24c. It is controlled to display characters such as “pipe” and “miscellaneous piping”. In addition, the display control unit 101c controls various information such as information input by the input unit 104 to be displayed in the display area of the touch panel 24c.

  The transmission control unit 101e performs control so that various types of information are sequentially transmitted from the wireless communication unit 103. As the information to be transmitted, there are position information by the GPS receiving unit 107 and a selection result of the use of the pipe P in the determining unit 101b. Therefore, the determination result of the use of the pipe P in the determination unit 101b and the position information by the GPS receiving unit 107 at the time of the selection are transmitted at the same timing. As information to be transmitted, information such as a radiation count value measured by the measurement unit 102 may be transmitted.

  Subsequently, a pipe positioning system using the pipe sorting apparatus 10 will be described. FIG. 5 is a configuration diagram of the piping positioning system according to the first embodiment. As shown in FIG. 5, the pipe positioning system 1 includes at least one pipe sorting apparatus 10 described above and a center 4 that performs wireless communication with the pipe sorting apparatus 10 via a base station 3. The base station 3 and the center 4 communicate with each other via a communication network 5 such as the Internet, a wireless or wired LAN (Local Area Network). The base station 3 performs wireless communication with the pipe selection device 10 located in the communication area. Note that the pipe selection device 10 and the base station 3 may perform wireless communication via a relay unit (not shown).

  Next, the center 4 will be described. FIG. 6 is a block diagram showing the configuration of the center. As shown in FIG. 6, the center 4 includes a control unit 401, a wireless communication unit 403, an input unit 404, a display unit 405, a storage unit 406, and a power supply unit 408.

  The control unit 401 includes a central processing unit (CPU) and the like, and controls the entire center 4. The control unit 401 performs arithmetic processing on various types of information received via the wireless communication unit 403 and various types of control processing in accordance with programs stored in the storage unit 406.

  The wireless communication unit 403 is a communication interface, and transmits / receives various information, data, and commands to the pipe selection device 10 through wireless communication through the base station 3 (see FIG. 5). Therefore, the wireless communication unit 403 functions as a wireless transmission unit and a wireless reception unit. The wireless communication unit 403 receives, for example, position information from the GPS receiving unit 107 of the pipe sorting device 10, selection result information of the use of the pipe P in the determination unit 101b, measurement result information from the measurement unit 102, and the like (see FIG. 3). ), Information to be described later calculated by the control unit 401 based on this information is transmitted to the pipe sorting device 10.

  The input unit 404 includes, for example, a keyboard, a button, a key, a touch panel display, a microphone, and the like. The input unit 404 acquires data by an operation from an operator or the like and outputs the data to the control unit 401. In addition, the input unit 404 can acquire data from an external device such as a personal computer by wired or wireless communication as a communication interface, or can be an interface such as a slot to which a storage medium such as a memory card containing data can be connected. Also good.

  The display unit 405 is configured by a display or the like, and displays an arithmetic processing result in the control unit 401 and various types of information of the pipe selection device 10 received by the wireless communication unit 403 to an operator who operates and manages the center 4.

  The storage unit 406 has the same configuration as that of the storage unit 106 of the pipe sorting device 10, but will be described below just in case. The storage unit 406 includes a RAM, a ROM, a nonvolatile memory, and the like. In the ROM, a program for the control unit 401 to perform various calculations and controls, a program for functioning as an application, data, and the like are stored. The RAM is used as a work area of the control unit 401 or information received by the wireless communication unit 403 is stored via the control unit 401. The RAM temporarily stores programs and data read from the ROM, data input from the input unit 404, calculation results executed by the control unit 401 in accordance with various programs, and the like. In the nonvolatile memory, data that needs to be stored for a long time is stored among the data generated by the calculation of the control unit 401.

  For example, a commercial power supply or the like is adopted as the power supply unit 408, and power is supplied to the above-described units.

  FIG. 7 is a functional block diagram of the control unit in the center. As shown in FIG. 7, the control unit 401 according to the present embodiment functions as a map creation unit 401a and a reception control unit 401b. These functional blocks are realized by the program stored in the storage unit 406 being executed by the control unit 401. In addition, the functional block of the control part 401 shown in FIG. 7 has shown only the structure relevant to this invention, and has abbreviate | omitted about the other structure.

  The map creation unit 401a creates image data that becomes map information by associating various types of information transmitted from the pipe sorting device 10 and received by the wireless communication unit 403 with the actual map data in the area where the pipe P is embedded. To do. An example of the creation of the map information will be described. The actual map data is obtained by associating the selected location of the pipe P from the position information (longitude and latitude) of the transmitted GPS receiver 107 (see FIG. 3), The selection result of the use of the pipe P is also associated with this point. And the image data by which the point which selected piping P on actual map data is displayed with a mark, an icon, etc. are created. At this time, the mark or the like is color-coded so that it can be distinguished for each sorting result of the use of the pipe P, is formed in a different shape, or characters such as “gas pipe” and “water pipe” are added. Furthermore, a radiation count value may be selectively associated with the associated point and displayed. Image data created by the map creation unit 401 a is stored in the storage unit 406 and can be displayed on the display of the display unit 405.

  Further, the image data may be wirelessly transmitted from the wireless communication unit 403 so that the image data is received by the wireless communication unit 103 of the pipe selection device 10 and displayed on the touch panel 24c. The image data may be wirelessly received by a terminal device such as a mobile phone or a smartphone and displayed in the display area. As a result, at the site of the piping work, the operator can know the use of the pipe P embedded in the construction site and its surroundings. Furthermore, the display of the image data may be controlled so as to automatically display the image data as a map centered on the real-time position received and calculated by the GPS receiving unit 107.

  Note that the map creation unit 401 a may create a database based on the various types of information described above and store the database in the storage unit 406. In this case, necessary information is read from the database in accordance with a command based on an output from the input unit 404 or the like at an arbitrary timing, and image data for superimposing the above display on the actual map data is created from the read information. May be. Further, in the database, the date and time when the pipes P are selected may be associated with each other so that the history of selection can be managed.

  The reception control unit 401b controls to sequentially receive various information transmitted from the pipe sorting device 10.

  Next, the pipe selection method according to the present embodiment will be described. FIG. 8 is a flowchart showing an example of the pipe selection method. As shown in FIG. 8, the pipe selection method according to the present embodiment includes an input step (step (hereinafter referred to as “ST”) 01), a mounting step ST02, a detection step ST03, a comparison information creation step ST04, and a determination step ST05. The display step ST06 and the transmission step ST07 are performed in this order. Note that these steps are merely examples, and are not limited to this configuration.

  First, the input step ST01 for directly or indirectly inputting the piping information of the piping P buried in the ground is performed. In the input step ST01, the operator inputs the pipe information described above by operating the touch panel 24c (see FIG. 1). As an input method, it is not limited to the touch panel 24c, The various methods using the input part 104 (refer FIG. 3) mentioned above are employable. The input piping information is stored in the storage unit 106 and used for the processing in the determination step ST05.

  After performing the input step ST01, as shown in FIG. 2, a mounting step ST02 for mounting the radiation source unit 11 and the radiation detection unit 12 with the pipe P interposed therebetween is performed. In the mounting step ST02, the radiation source holder 14 and the detection unit holder 15 are separated greatly via the adjustment mechanism 18, and then the pipe P is inserted therebetween. Next, the separated source holding body 14 and detection unit holding body 15 are slid in the approaching direction, and the pair of inclined edges in the contact portions 14a and 15a are brought into point contact with the pipe P. By such point contact, the radiation direction of the radiation from the radiation source unit 11 is arranged on a line orthogonal to the extending direction of the pipe P and passing through the center of the pipe P, and the incident part of the radiation detection unit 12 is also on the same line. Be placed. In this state, the slide movement of the radiation source holder 14 and the detector holding body 15 is restricted via a positioning mechanism (not shown), and the pipe P is sandwiched between the radiation source holder 14 and the detector holder 15. It becomes. Thereby, the radiation source part 11 and the radiation detection part 12 are positioned, and mounting step ST02 is completed.

  Here, in the pipe P, an exterior material may be provided to protect the pipe P from corrosion or the like. When the exterior material is provided on the pipe P, the mounting step ST02 is performed as described above from the outside of the exterior material without removing the exterior material.

  After performing mounting step ST02, detection step ST03 is performed. In the detection step ST03, the power of the pipe sorting device 10 is turned on, and after the time constant corresponding to the diameter size of the pipe P has elapsed, the radiation detected by the radiation source section 11 and transmitted through the pipe P is detected by the radiation detection section 12. To detect. The radiation detected by the radiation detector 12 is attenuated by passing through the pipe P, and the amount of attenuation changes depending on the contents of the pipe P. That is, the amount of attenuation of radiation increases in the pipe P rather than gas, and the count value of the detected radiation decreases. The detection result of the detection step ST03 is stored in the storage unit 106 and used for the processing in the determination step ST05.

  After performing the detection step ST03, the predicted value of the count value is calculated based on the piping information input in the input step ST01, or the predicted value of any parameter of the piping information is calculated based on the detection result of the detection step ST03. The comparison information creation step ST04 to be calculated is performed. In the comparison information creation step ST04, the above-described process is performed as the process of the comparison information creation unit 101a (see FIG. 4).

  After performing the comparison information creation step ST04, the comparison between the predicted value of the count value calculated in the comparison information creation step ST04 and the detection result of the detection step ST03, or the predicted value of the parameter in the comparison information creation step ST04 and the input step ST01 Based on the comparison with the input value of the parameter, the determination step ST05 for selecting the use of the pipe P is performed. In the determination step ST05, the above-described process is performed as the process of the determination unit 101b (see FIG. 4). As a result, a command for selecting the use of the pipe P and outputting a display corresponding to the selection result is output to the display control unit 101c (see FIG. 4), and a command for transmitting the selection result of the use of the pipe P to the center 4 is provided. The data is output to the transmission control unit 101e (see FIG. 4).

  After performing the determination step ST05, a display step ST06 for displaying the usage of the pipe P is performed. In the display step ST06, the display control unit 101c (see FIG. 4) controls the two lighting units 24a and 24b and the touch panel 24c (see FIG. 1) as described above according to a command from the determination unit 101b. Switch the display. Thereby, it is possible to notify the operator that the use of the pipe P to be sorted is “gas pipe”, “water pipe”, or “miscellaneous pipe”.

  After the determination step ST05 is performed, the transmission step ST07 is performed before or after the display step ST06 is performed. In transmission step ST07, the GPS receiving unit 107 receives a GPS signal and acquires position information. Then, the transmission control unit 101e controls to transmit the position information by the GPS receiving unit 107 and the selection result of the use of the pipe P in the determination step ST05 to the center 4.

  By performing the transmission step ST07 in this way, the usage of the pipe P is sorted, and at the same time, the sorting result and the position information of the place where the sorting is performed are transmitted to the center 4. In the center 4, the map creation unit 401 a (see FIG. 7) maps the points where the pipes P are selected on the actual map data as described above and the selection results of the uses of the pipes P at the points. The generated map information is created. These processes can be automatically performed regardless of the consciousness of the operator who handles the pipe sorting apparatus 10. Therefore, when multiple pipe sorting devices 10 are used to sort pipes P over a long period of time, such as months or years, map information is created in which the sorting results at many locations are displayed in a mesh pattern. can do. As a result, it is possible to improve the predictability of the pipe P buried at that point when planning the piping work or before excavating the pipe work, thereby shortening the construction period and facilitating work preparation. it can.

  According to such an embodiment, the usage of the pipe P can be selected based on the detection result of the radiation transmitted through the pipe P and the pipe information from the input unit 104. This eliminates the need to rely on the operator's experience and intuition to specify the use of the piping P, so that the sorting operation can be shortened and the sorting accuracy can be prevented by preventing erroneous sorting. Can be increased.

  Here, conventional piping work will be described. If a pipe such as a gas pipe or a water pipe is damaged, it will interfere with daily life. However, in the case of piping, the burial location is unknown, and piping other than the piping planned for construction may be mixed when excavated. Especially, the piping of older ages is used for gas pipes or water pipes. It is difficult to select whether it is from the appearance. For this reason, a plurality of plumbing companies according to the use of the buried pipes jointly select the pipes. In other words, for example, when repairing a gas pipe, another industry trader sorts out the pipes for the gas pipe trader, which is an inefficient response for all the pipe traders.

  In this regard, by making it possible to sort the use of the pipe P using the pipe sorting device 10, the use of the pipe P can be sorted easily and accurately in a short time even if it is difficult to sort by appearance. be able to. Accordingly, it is possible to eliminate the need for a plurality of plumbing companies to jointly select other industry companies for the gas piper, and to improve the efficiency of the plumbing company.

  Next, other embodiments of the present invention will be described. In the following description, the same reference numerals may be used for the same or equivalent components as those described in the embodiment described before, and the description may be omitted or simplified.

[Second Embodiment]
FIG. 9 is an external perspective view of a pipe sorting apparatus according to the second embodiment. As shown in FIG. 9, in the pipe sorting apparatus 10 according to the second embodiment, the radiation source holder 11 and the radiation detector 12 are held by the radiation source holder 14 and the detector holder 15 so that the radiation source 11 and the radiation detector 12 are exposed to the outside. Is done. The radiation source holder 14 and the detector holding body 15 extend in a quadrant along the outer peripheral surface of the pipe P, and are connected to the connecting body 30 on the upper end side. The radiation source holder 14 and the detection unit holder 15 are detachably provided to the connector 30 via a connector 31 such as a screw member. Accordingly, when a plurality of radiation source holders 14 and detector holding bodies 15 having different sizes are prepared and the diameter of the pipe P is changed, the radiation source holder 14 and the detector holding body 15 used in accordance with the diameter are changed. By changing, the pipe sorting device 10 can be mounted on the pipe P having various diameters.

  A rising portion 32 is formed continuously at the front end of the connection body 30, and a cylindrical handle portion 33 extends rearward from the rising portion 32. In addition, a main body 34 formed in a box shape that is obliquely upward is provided at the rear end of the connection body 30.

  A display area 36 composed of a liquid crystal display, an organic EL display, or the like is provided on the upper surface of the main body 34. The display area 36 constitutes a display section and the touch panel 24c according to the first embodiment (see FIG. 1). Is displayed. On the left side of the display area 36, two lighting parts 24a and 24b constituting the display part are provided, and on the right side of the display area 36, a plurality of operation buttons 37 constituting the input part are provided side by side. The main body 34 and the radiation detection unit 12 are connected by a cable 38, and input / output of detection results and power supply can be performed via the cable 38.

  Here, the radiation source unit 11 and the radiation detection unit 12 are provided with a magnet 40 at a position facing the pipe P (the magnet of the radiation detection unit 12 is not shown). The magnet 40 is magnetized when the pipe P is a magnetic material such as iron, and the radiation source unit 11 and the radiation detection unit 12 can be positioned with respect to the pipe P by this magnetisation. Here, the magnet 40 constitutes a positioning mechanism, and the pipe sorting device 10 can be easily and quickly mounted on the pipe P. In addition, the magnet 40 is provided with an opening at the center so as not to interfere with the radiation collimated from the radiation source 11 and irradiated.

  According to such embodiment, since the main-body part 34 and the radiation detection part 12 were isolate | separated, each can be maintained separately.

[Third Embodiment]
FIG. 10 is an external perspective view of a pipe sorting apparatus according to the third embodiment. As shown in FIG. 10, in the pipe sorting device 10 according to the third embodiment, the main body 34 is integrally provided in the radiation detection unit 12 of the second embodiment and is assembled into a single housing 44. Is. In the third embodiment, the main body 34 is disposed above the radiation detection unit 12, and the display area 36 is directed upward. A plurality of operation buttons 37 are provided on the right side of the display area 36, and two lighting portions 24a and 24b are provided on the right side thereof.

  According to such an embodiment, the product cost can be reduced by integrating the main body 34 and the radiation detection unit 12 together.

[Fourth Embodiment]
FIG. 11 is an external perspective view of a pipe sorting apparatus according to the fourth embodiment. As shown in FIG. 11, in the pipe sorting device 10 according to the fourth exemplary embodiment, the radiation source holder 14 and the detection unit holder 15 are formed of a rectangular plate. And in the radiation source holding body 14 and the detection part holding body 15, the magnet 50 which comprises a positioning mechanism is provided in the four corners of the surface facing the piping P (two magnets on the detection part holding body 15 side are the two magnets). Not shown). When the magnets 50 are magnetically attached to the pipe P, the radiation source unit 11 and the radiation detection unit 12 can be positioned with respect to the pipe P.

  A connecting jig 51 is detachably provided on the radiation source holder 14 and the detection unit holder 15. The connecting jig 51 extends between the pair of mounting surface portions 52 arranged along the radiation source holding body 14 and the detection unit holding body 15 and the upper end side of each mounting surface portion 52 so as to extend in a semicircular arc shape. Part 53. The radiation source holder 14, the detector holding body 15, and the attachment surface portion 52 are detachably provided via a connector 55 such as a screw member. A plurality of the passing portions 53 having different sizes and curvatures are prepared so that they can be placed along the upper surface of the pipe P having various diameters. Accordingly, when the diameter dimension of the pipe P changes, the distance between the radiation source section 11 and the radiation detection section 12 is changed by changing the transfer section 53 to be used in accordance with this, and the pipe P has various diameter dimensions. The sorting device 10 can be mounted. In addition, after attaching the radiation source part 11 and the radiation detection part 12 to the piping P with the magnet 50, the connection jig | tool 51 can also be removed from the radiation source holding body 14 and the detection part holding body 15, and can be utilized.

  According to such an embodiment, the handle portion 33 as in the second and third embodiments can be omitted, and the product cost can be reduced through the simplification of the structure.

[Fifth Embodiment]
12 to 23 are external views of a pipe sorting apparatus according to the fifth embodiment. FIG. 12 is a perspective view, FIG. 12 is a perspective view of FIG. 12 viewed from the opposite side, and FIG. 14 is a front view of FIG. 15 is a rear view of FIG. 12, FIG. 16 is a left side view of FIG. 12, FIG. 17 is a right side view of FIG. 12, FIG. 18 is a plan view of FIG. As shown in FIG. 12, in the pipe selection device 10 according to the fifth embodiment, the radiation source holder 14 and the detection unit holder 15 are formed in a frame shape that intersects at an intermediate portion in the vertical direction. The radiation source unit 11 is held on the lower end (one end) side of the radiation source holding body 14, and the radiation detection unit 12 is held on the lower end (one end) side of the detection unit holding body 15. The radiation source holder 14 and the detection unit holder 15 are provided so as to be capable of relative rotation at the intersecting positions via the rotary shaft portion 200. By this relative rotation, the radiation source portion 11 and The separation distance of the radiation detector 12 can be adjusted. Therefore, the radiation source holding body 14 and the detection unit holding body 15 constitute an adjustment mechanism 18 together with the rotary shaft portion 200 while constituting a holding body for holding the radiation source unit 11 and the radiation detection unit 12. 12 to 19 show a state where the pipe P is attached to a relatively small diameter (for example, nominal diameter 80A), and FIGS. 20 to 23 show the state where the pipe P is attached to a relatively large diameter (for example, nominal diameter 300A). Shows the state. 20 is a perspective view, FIG. 21 is a front view of FIG. 20, FIG. 22 is a rear view of FIG. 20, and FIG. 23 is a plan view of FIG.

  Returning to FIG. 12, the radiation source holder 14 and the detector holding body 15 have a substantially symmetrical structure, and a front frame 201 and a rear frame 202 that are arranged at a predetermined interval in the front and rear are respectively provided. I have. Between the upper ends (other ends) of the front frame 201 and the rear frame 202, a handle (gripping part) 204 is provided for the operator to grip and relatively rotate the radiation source holder 14 and the detection part holder 15. Yes. Below the handle 204, the front frame 201 and the rear frame 202 are connected by a spring mounting shaft 205. A plurality (three in this embodiment) of coil springs (elastic bodies) 206 are mounted so as to bridge the two spring mounting shafts 205, and the coil springs 206 are in the direction in which the two spring mounting shafts 205 approach each other. Demonstrate the elasticity of.

  Below the spring mounting shaft 205, the front frames 201 and the rear frames 202 of the radiation source holder 14 and the detector holding body 15 intersect so as to form an X shape. It penetrates. Below the rotating shaft 200, the front frame 201 and the rear frame 202 are connected by a connecting shaft 208. The region below the connecting shaft 208 of the front frame 201 and the rear frame 202 is curved so that the lower end side approaches (see FIGS. 14 and 15).

  Support bodies 212 and 213 are rotatably supported between the lower ends of the front frame 201 and the rear frame 202 via bolts 210 and 211 serving as rotation support portions. The radiation source unit 11 is supported by a support 212 in the radiation source holder 14, and the radiation detection unit 12 is supported by a support 213 in the detection unit holder 15. Contact bodies 214 and 215 are provided on the inner side (opposite sides) of the respective support bodies 212 and 213. In the radiation source holder 14, the support body 212, the contact body 214, and the radiation source unit 11 become a unit, and this unit can rotate relative to the frames 201 and 202 around the bolt 210. Further, in the detection unit holding body 15, the support 213, the contact body 215, and the radiation detection unit 12 serve as a unit, and this unit can rotate relative to the frames 201 and 202 around the bolt 211.

  The contact bodies 214 and 215 are each provided with a pair of upper and lower inclined surfaces that gradually expand toward the pipe P side, and these inclined surfaces make a substantially line contact when the pipe sorting device 10 is attached to the pipe P. By such line contact, the radiation direction from the radiation source unit 11 and the radiation detection direction by the radiation detection unit 12 are perpendicular to the extending direction of the pipe P and pass through the center of the pipe P. In the contact bodies 214 and 215, a hole 215a (see FIG. 13 for the hole 214a) is formed in a portion through which radiation passes.

  At the position where the front frames 201 of the radiation source holder 14 and the detector holding body 15 intersect each other, the pipe diameter for displaying the diameter of the pipe P based on the relative angle between the radiation source holder 14 and the detector holding body 15. A measurement unit 220 is provided. FIG.24 and FIG.25 is explanatory drawing of the pipe diameter measuring part which concerns on 5th Embodiment. As shown in FIGS. 24 and 25, the pipe diameter measuring unit 220 includes a disc-shaped pipe diameter display plate 221 having a plurality of scales 221a in the radial direction from the rotary shaft 200, and a front frame 201 on the front side. And a protrusion (instruction part) 222 for indicating the scale 221a. In the pipe sorting apparatus 10 of the present embodiment, the distance between the radiation source section 11 and the radiation detection section 12 changes in proportion to the diameter of the pipe P to be measured, and the radiation source holder 14 is changed according to this change. In addition, the relative rotation angle of the detection unit holding body 15 around the rotation shaft 200 changes. Accordingly, the position indicated by the protrusion 222 also changes due to such a change, and the pipe diameter display plate 221 is provided with a scale 221a at the position indicated by the protrusion 222 according to the diameter dimension (nominal diameter) of the pipe P. Thereby, when the pipe sorting apparatus 10 is mounted on the pipe P, the diameter (nominal diameter) of the pipe P can be easily recognized by the scale 221a indicated by the protrusion 222.

  As shown in FIGS. 15 and 22, the pipe sorting device 10 of this embodiment includes an angle correction unit 230. The angle correction unit 230 includes a bracket 231 that is fixed to the rotary shaft unit 200 and extends upward, and connecting frames 232 and 233 that extend in a crank shape between the upper end side of the bracket 231 and the supports 212 and 213. . The connection frames 232 and 233 are connected to the bracket 231 and the support bodies 212 and 213 via pins 235 to 237 serving as rotation centers so as to be relatively rotatable. Accordingly, the relative rotation of the radiation source holder 14 and the detection unit holder 15 causes relative rotation so that the lower ends of the connection frames 232 and 233 are spaced apart from each other.

  15 and FIG. 22, even if the relative rotation angle of the radiation source holder 14 and the detector holding body 15 is changed according to the diameter size of the pipe P, the bolt 236 that supports one end side of the connection frames 232 and 233. 237 and the vertical positions of the pins 210 and 211 for supporting the radiation source unit 11 and the radiation detection unit 12 are kept substantially constant. In other words, in the angle correction unit 230, the vertical positions of the pins 236 and 237 and the bolts 210 and 211 are kept substantially constant according to changes in the relative rotation angles of the radiation source holder 14 and the detector holder 15. The lengths, shapes, and attachment positions of the connection frames 232 and 233 are set so as to be bent. Therefore, even if the angle of the radiation source holder 14 and the detection unit holder 15 changes according to the diameter of the pipe P, the radiation emitted from the radiation source unit 11 by the angle correction unit 230 is incident on the incident part of the radiation detection unit 12. So as to be incident perpendicular to. Thus, when the pipe sorting device 10 is mounted on the pipe P, the angle adjustment work of the radiation source section 11 and the radiation detection section 12 can be omitted or simplified, and the mounting on the pipe P can be performed easily and quickly. It can be carried out.

  The connection frames 232 and 233 are formed so as not to protrude to the inside (the pipe P side) of the radiation source holding body 14 and the detection unit holding body 15, and the connection frames 232 and 233 are obstructive when attached to the pipe P. It is supposed not to be.

  Here, a handle 240 is provided in front of the rotating shaft portion 200. This handle 240 is used to fix the radiation source holding body 14 and the detection unit holding body 15 so that there is no displacement or vibration when the piping P is sandwiched between the contact bodies 214 and 215 as described later. Used.

  In the above configuration, when the radiation source unit 11 and the radiation detection unit 12 are mounted across the pipe P, the grip 204 is gripped, and the handles 204 are separated from each other against the elastic force of the coil spring 206. To do. By this operation, the radiation source holder 14 and the detection part holder 15 are relatively rotated around the rotation shaft part 200, and the radiation source part 11 and the radiation detection part 12 are separated greatly. Next, the pipe P is inserted between them, and the pair of inclined surfaces of the contact bodies 214 and 215 are in line contact with the pipe P by bringing the radiation source part 11 and the radiation detection part 12 close to the pipe P by the elastic force of the coil spring 206. Let By this line contact and the angle correction by the angle correction unit 230 described above, the radiation direction of the radiation from the radiation source unit 11 is arranged on a line orthogonal to the extending direction of the pipe P and passing through the center of the pipe P, and radiation detection The incident part of the part 12 is also arranged on the same line. In this state, the contact bodies 214 and 215 sandwich the pipe P by the elastic force of the coil spring 206, and the radiation source unit 11 and the radiation detection unit 12 are positioned. Here, the positioning mechanism includes the coil spring 206 and the contact bodies 214 and 215.

  In the figure, the case where the pipe sorting device 10 is mounted from above the pipe P has been described, but the pipe sorting apparatus 10 is mounted from the side of the pipe P so that the radiation direction from the radiation source unit 11 is in the vertical direction. It may be made to become. In this case, it becomes easy to detect a liquid or a contained item located only on the bottom side of the pipe P. In addition, the pipe sorting device 10 may be mounted from two different directions to sort the use of the pipe P. At this time, only when it is determined and displayed that the use of the pipe P is uncertain in the first mounted direction. Alternatively, the pipe sorting apparatus 10 may be mounted in different directions to sort the pipes P.

  According to such an embodiment, the radiation source holder 14 and the detector holding body 15 are relatively rotated by an operation of holding and holding the handle 204 with both hands, and the radiation source section 11 is provided on both sides in the radial direction of the pipe P. And the radiation detection part 12 can be arrange | positioned easily. Moreover, the removal of the pipe sorting apparatus 10 from the pipe P can be easily performed by the same operation, and the work load can be reduced and the work time can be shortened.

  Further, since the radiation source holding body 14 and the detection unit holding body 15 are urged by the coil spring 206 and the piping P is sandwiched between the contact bodies 214 and 215, the radiation source unit 11 and the radiation detection unit 12 are connected to both sides in the radial direction of the piping P. And can be positioned so that radiation can be detected simultaneously. The positioning can be released by applying a force against the coil spring 206 through the handle 204. Therefore, in addition to the configuration in which the radiation source holder 14 and the detection unit holder 15 are rotated relative to each other, the provision of the coil spring 206 can further simplify the attachment / detachment of the pipe sorting device 10 to the pipe P.

  The present invention is not limited to the above embodiment, and can be implemented with various modifications. Moreover, there is no restriction | limiting in particular about the numerical value, dimension, material, and direction which were demonstrated by the said embodiment. Other modifications may be made as appropriate without departing from the scope of the object of the present invention.

  For example, the configurations of the lighting units 24a and 24b and the touch panel 24c that constitute the display unit 105 may be omitted. In this case, the selection result of the use of the pipe P and various calculation results may be transmitted to an external device such as a terminal device and output. However, as in each of the above embodiments, the configuration including the lighting portions 24a and 24b is advantageous in that the operator can easily be notified of the selection result of the use of the piping P.

  The display unit 105 may change or add the selection result of the determination unit 101b or the like to a speaker that outputs sound.

  The input unit 104 may be changed to a microphone or a wireless remote controller, or may be added.

  In each of the above-described embodiments, the case where the pipe P to be selected is used as a gas pipe and a water pipe has been described. However, the present invention is not limited to this. In addition to selecting other applications, other applications may be further selected, that is, three or more kinds of applications may be selected. For example, when it is possible to select a communication / power supply pipe (hereinafter referred to as “communication pipe”) in addition to a gas pipe and a water pipe, the radiation detection unit 12 can detect the communication pipe. A threshold value that is numerical comparison information is also calculated. When the actual measurement value detected by the radiation detection unit 12 falls within the threshold range, the use of the pipe P as the “communication pipe” is obtained as a selection result, and display corresponding to this is performed.

  Further, the processing of the comparison information creation unit 101 a and the determination unit 101 b in the control unit 101 of the pipe sorting device 10 may be performed by the control unit 401 of the center 4. Thereby, the information processing of the plurality of pipe sorting apparatuses 10 can be performed collectively at the center 4.

4 Center 10 Pipe Sorting Device 11 Radiation Source 12 Radiation Detecting Unit 14 Radiation Source Holding Body 15 Detection Unit Holding Body 16 Device Body (Holding Body)
18 Adjustment mechanism 40 Magnet (positioning mechanism)
50 Magnet (positioning mechanism)
101a Comparison information creation unit 101b Determination unit 103 Wireless communication unit (wireless transmission unit)
104 Input unit 105 Display unit 107 GPS receiving unit 200 Rotating shaft unit 204 Handle (gripping unit)
206 Coil spring (elastic body)
220 Pipe diameter measuring part 221a Scale 222 Protrusion (indicating part)
230 Angle correction unit 403 Wireless communication unit (wireless reception unit)
401a Map making part P Piping

Claims (16)

Pipe selection comprising a radiation source part and a radiation detection part mounted across a pipe embedded in the ground, and detecting the counted value of radiation radiated from the radiation source part and transmitted through the pipe by the radiation detection part A device,
An input unit for directly or indirectly inputting piping information about the piping;
A comparison information creation unit that calculates a predicted value of the count value based on the piping information, or calculates a predicted value of any parameter of the piping information based on a detection result of the radiation detection unit,
Based on the comparison between the predicted value of the count value and the detection result of the radiation detection unit, or the comparison between the predicted value of the parameter and the input value of the parameter directly or indirectly input through the input unit, And a determination unit for selecting a use of the pipe,
As the piping information, at least a thickness of the piping and an absorption coefficient of the piping in the radiation source unit are directly or indirectly input through the input unit.   The pipe sorting device according to claim 1, wherein the use of the pipe sorted by the determination unit includes at least a gas pipe and a water pipe.   The thickness of water that can flow inside the pipe and the absorption coefficient of water in the radiation source part are directly or indirectly inputted through the input part as the pipe information. Piping sorting equipment.   The pipe selection apparatus according to any one of claims 1 to 3, further comprising a display unit that displays a result of selection by the determination unit. The radiation source unit and the radiation detection unit are held via a holding body,
5. The adjusting mechanism according to claim 1, wherein the holding body is provided with an adjustment mechanism that adjusts a separation distance between the radiation source unit and the radiation detection unit according to a diameter of the pipe. Piping sorting device according to crab. An adjustment mechanism for adjusting a separation distance between the radiation source unit and the radiation detection unit according to a diameter of the pipe;
The adjustment mechanism includes: a radiation source holder that holds the radiation source part at one end; a detection part holder that holds the radiation detection part at one end and intersects the radiation source holder; and The rotation distance is adjusted by relatively rotating the radiation source holding body and the detection section holding body through the rotation shaft portion. The pipe selection device according to any one of claims 4 to 5.   The piping sorting device according to claim 6, wherein a grip portion is provided on the other end side of the radiation source holder and the detection unit holder.   A positioning mechanism is provided for positioning the radiation source unit and the radiation detection unit with respect to the pipe, and the positioning mechanism is an elastic material that exerts a force to sandwich the pipe at one end side of the radiation source holding body and the detection unit holding body. The pipe sorting apparatus according to claim 6 or 7, wherein the pipe sorting apparatus has a body. A pipe diameter measuring unit that displays the diameter of the pipe based on the relative angle of the radiation source holder and the detection unit holder;
The pipe diameter measuring unit includes a scale provided according to the diameter of the pipe, and an instruction unit that is formed on at least one of the radiation source holder and the detection unit holder and points to the scale. The pipe sorting device according to any one of claims 6 to 8, wherein   In the relative rotation of the radiation source holder and the detection part holder, the angles of the radiation source part and the radiation detection part are corrected so that the radiation emitted from the radiation source part is kept incident on the radiation detection part. The pipe selection device according to claim 6, further comprising an angle correction unit that performs the correction.   11. A positioning mechanism for positioning the radiation source unit and the radiation detection unit with respect to the pipe, and the positioning mechanism includes a magnet that is magnetically attached to the pipe. The piping sorting apparatus according to any one of the above.   The pipe selection device according to any one of claims 1 to 11, further comprising a GPS reception unit that receives a GPS signal and acquires position information of the pipe selection device. The piping is provided with an exterior material,
The radiation detection unit is provided to be able to detect radiation transmitted through the pipe and the exterior material,
13. The piping information is characterized in that at least a thickness of the exterior material and an absorption coefficient of the exterior material in the radiation source part are input directly or indirectly through the input unit. The pipe sorting device according to any one of the above. An input step for directly or indirectly inputting piping information of piping buried in the ground;
A mounting step of mounting the radiation source unit and the radiation detection unit across the pipe;
A detection step of detecting a count value of radiation radiated from the radiation source unit and transmitted through the pipe with the radiation detection unit;
A comparison information creation step of calculating a predicted value of the count value based on the piping information of the input step, or calculating a predicted value of any parameter of the piping information based on a detection result of the detection step;
For comparison between the predicted value of the count value in the comparison information creation step and the detection result in the detection step, or comparison between the predicted value of the parameter in the comparison information creation step and the input value of the parameter in the input step And a determination step of selecting a use of the pipe based on the pipe selection method. A GPS receiver is provided integrally with the radiation detector,
15. The piping according to claim 14, wherein when the determination step is performed, the GPS reception unit performs a transmission step of receiving a GPS signal to acquire position information and transmitting the position information to a predetermined center. Sorting method. Pipe selection comprising a radiation source part and a radiation detection part mounted across a pipe buried in the ground, and detecting the counted value of radiation radiated from the radiation source part and transmitted through the pipe by the radiation detection part A piping positioning system including a device and a center for acquiring information from the piping sorting device,
The pipe sorting device
A GPS receiver for acquiring position information of the pipe sorting device;
An input unit for directly or indirectly inputting piping information about the piping;
A comparison information creation unit that calculates a predicted value of the count value based on the piping information, or calculates a predicted value of any parameter of the piping information based on a detection result of the radiation detection unit,
Based on the comparison between the predicted value of the count value and the detection result of the radiation detection unit, or the comparison between the predicted value of the parameter and the input value of the parameter directly or indirectly input through the input unit, A judgment part for selecting the use of the pipe;
A wireless transmission unit that wirelessly transmits the selection result of the determination unit and the position information of the GPS;
Further comprising
The center is
A wireless receiver that wirelessly receives the sorting result and the position information wirelessly transmitted from the wireless transmitter of the pipe sorting device;
A map creation unit that associates the selection result and the position information received wirelessly by the wireless reception unit and creates map information mapped on a predetermined map;
A piping positioning system characterized by comprising:

Images