JP2006345640A - Underground cabinet control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system enabling a user to visually recognize the information of underground conduits and cables jointed to the wall surface of an underground cabinet without the need of opening a lid thereof. <P>SOLUTION: With a wireless tag installed on the ground or the like adjacent to the upper portion of the underground cabinet, the information of all conduits and cables jointed to any wall surface of the underground cabinet and the information of an underground cabinet body are maintained in this wireless tag. Then, by using an information terminal provided with a communication device communicable with the wireless tag, the information of the underground conduit, cable and the underground body are visually recognized by the user. The information maintained in the wireless tag is such that the user can recognize not only the conduit and the cable connected onto the underground cabinet wall surface but also an arrangement of the conduit on the wall surface. Furthermore, this information enables the user to determine, from the ground, that which conduit is jointed to which location of the wall surface of the underground cabinet. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention attaches a wireless tag to a manhole / handhole (hereinafter referred to as an underground box), reads information on the underground conduit / cable and the main body of the underground box wired in the underground box by electromagnetic waves. It relates to an underground box management system that enables writing.

Cables in the underground box are generally managed by drawing or attaching a destination display tag to each cable.

In large-scale underground boxes such as government offices and electric power companies, when laying pipes / cables, information necessary for maintenance such as pipe / cable type, destination, installation time, and laying contractor is recorded in drawings, and detailed by users. Management is carried out. On the other hand, in the underground box etc. in the general customer premises, the cable management by the drawing and the destination display tag as described above is often insufficient.

When installing and removing underground cables, if the cable management is not sufficiently performed, the destination and use of each cable conduit cannot be easily identified, and the work efficiency of the construction may be reduced. Furthermore, after the construction is complete, it is also necessary to correct the drawings according to the construction content.

Further, when it is desired to check the cable information at the time of maintenance or disaster recovery, it is necessary to actually open the cover of the underground box and check the drawing, the destination display tag, etc. again, which is very troublesome. Thus, underground cable management requires a great deal of labor. Moreover, even when investigating the name of the underground box body, the state of internal flooding, the staying state of harmful gases, etc. for maintenance purposes, a method of checking by opening the lid is common.

As an improvement measure, a cable management method using a wireless tag has been devised. This method makes it possible to read and re-write information related to cables and piping that are wired in the underground box written on the wireless tag, and to efficiently manage cables from the ground. . For example, a means has been proposed in which a wireless tag is installed on the cover of the underground box and the internal cable information can be known from the ground, such as a “manhole cover” disclosed in JP-A-9-125433. However, the underground box generally has a cubic structure, and cables are connected to the respective wall surfaces, and it is difficult to ascertain in which direction the cables in the underground box are routed in this way. In addition, since the wireless tag communicates with electromagnetic waves, it is easily affected by metal, and communication with a wireless tag placed on a metal lid also causes technical difficulties in communication. In addition, “the underground box and the labeled pipe opening forming member installed in the underground box” disclosed in Japanese Patent Application Laid-Open No. 2003-153410 is a pipe opening forming member (bell mouth) connected to the underground box. It is a means for installing a wireless tag for each cable and managing each cable. However, the number of cable conduits connected to one underground box is at least 5 to 10, and there are some that exceed 30 in a large underground box. If the number of underground boxes to be managed is large, a large number of wireless tags are required, and there is a possibility that a great deal of cost may be incurred when introducing the system. In addition, when reading a wireless tag from the ground, there is a high possibility that information on all cable pipelines cannot be read, and there is a problem in reliability. The object of the present invention is to enable a user to visually recognize information about underground conduits / cables connected to the wall of the underground box and the main body of the underground box without opening the lid of the underground box. There is to do.
JP-A-9-125433 "Manhole cover" Japanese Patent Application Laid-Open No. 2003-153410 “Underground box and member for forming a labeled pipe opening installed in the underground box”

In order to solve the above problems, in the present invention, a wireless tag is installed on the ground surface or the like near the upper part of the underground box, and all the conduits / cables connected to any wall surface of the underground box to the tag. Information such as type, destination, installation time, installation contractor, etc., and the name of the underground box body, internal flooding status, toxic gas retention status, etc. are retained. Using the information terminal having a communication means with the wireless tag, and having a notification means for visually recognizing information on the underground conduit / cable and the underground box main body, the above-mentioned It is a feature of the present invention that information can be confirmed and updated and information related to the underground box can be comprehensively managed.

In addition, if a single wireless tag holds all the information about the underground conduits / cables of the wall surface and the main body of the underground box for any wall surface of the underground box, and management is performed only by communication with this wireless tag Therefore, communication can be simplified, and even when data is read from the ground, loss of information can be prevented, leading to improved reliability.

Furthermore, the information to be held by the wireless tag is not only information on the pipelines and cables connected to the wall surface of the underground box, but also the arrangement of the pipelines on the wall surface. It is also possible to determine whether the road is connected.

According to the present invention, the pipe / cable information on the wall surface of the underground box is aggregated and held in a small number of wireless tags to perform highly reliable communication. Can be managed accurately. In addition, it is possible to comprehensively manage the underground box by handling information such as the name of the underground box body, the state of internal flooding, and the retention status of harmful gases. Costs can be reduced because management is performed with a small number of wireless tags. In addition, because it handles information related to the arrangement of pipelines on the wall surface, it is easy to identify the wiring route without opening the lid, and it is particularly useful when you want to check cable information during cable addition / removal work, maintenance, and disaster recovery. It is. Furthermore, by storing the communication data with the wireless tag in the information terminal, it is possible to grasp the pipeline / cable information of the underground box without going to the site, and to manage by the host computer using these information Application is also possible.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an overview of an underground box management system according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an underground box, and one or more pipes and cables are connected to the underground box 1. A wireless tag 2 is installed on the upper ground surface of the underground box 1. In the wireless tag 2, information such as the type of pipe / cable, destination, installation time and laying contractor, and information such as the name of the underground box body, internal flooding status, toxic gas retention status, etc. are written. To do. Reference numeral 3 denotes an antenna that transmits and receives radio waves to and from the wireless tag 2, and 4 denotes a reader / writer that converts a signal from the antenna 3 into an electric signal. An information terminal 5 receives a signal from the reader / writer 4 and displays pipe line / cable information. The information terminal 5 takes security measures such as ID registration and password authentication that allow only a specific user to read and write information. The format is preferably a portable device such as a PDA, but is not particularly limited to this.

2 is an enlarged view of an arbitrary side (referred to as a wall surface 6) to which a pipeline or cable to be managed is connected among the four sides of the underground box 1, and FIG. 3 is information of the wireless tag 2 in FIG. Is a screen example displayed on the information terminal 5. Hereinafter, information to be written to the wireless tag 2 will be described in detail with reference to these drawings.

The information to be written to the wireless tag 2 is information on all the pipes / cables connected to the wall surface 6, and each pipe line is combined with information on each pipe / cable type, destination, installation time, laying contractor, etc. Add position information on the wall surface 6 of the cable. By adopting such an information storage system, the information on the wireless tag 2 is used to transmit the pipe line / cable information to the information terminal 5 in an arrangement similar to the wall surface pipe distribution situation of the actual wall surface 6 as shown in FIG. It is possible to display on the screen. Further, if an arbitrary pipeline / cable is selected in FIG. 3, the pipeline / cable information can be obtained. Thereby, it becomes possible for the user to visually recognize the distribution condition of the wall surface pipeline and the cable line information in the underground box without opening the lid. In addition, compared to the conventional method of installing wireless tags individually in the pipeline, management with a single wireless tag simplifies communication with the tag, improves the reliability of reading from the ground, and installs it. This also leads to cost savings and management savings. In addition, if information such as the name of the underground box body, internal flooding status, and toxic gas retention status is written to the wireless tag 2, comprehensive management of the underground box can be performed together with the pipeline and cable information. . Information on the underground conduits / cables and the main body of the underground box can be stored in an information terminal so that the information on the underground box can be grasped without going to the site. Is also possible.

FIG. 4 shows an installation example of the wireless tag 2. The wireless tag 2 includes a memory for holding information, an IC chip having a logic circuit, and a small antenna. There are active tags with batteries and passive tags that do not require batteries. Either tag can be used. However, if a long communication distance is required, the former is used and the battery is not replaced. When maintenance-free is required, it is desirable to select the latter. The processing of the wireless tag 2 needs to be performed according to the intended use. In the case of outdoor installation, the structure is excellent in waterproofness, durability, and dust resistance, and it is intended to withstand heavy objects such as vehicles. As shown in FIG. 4, in addition to installing directly in the upper part of the underground box, a method of grinding and embedding the concrete of the underground box is also possible. Moreover, it is also possible to install the wireless tag 2 on the underground cover by applying a metal-resistant process.

As for the installation position of the wireless tag 2, it is desirable to install the wireless tag 2 on the upper side of one side to which the cable / pipe to be managed is connected among the four sides of the underground box. Thereby, when the user reads the wireless tag 2 locally, it can be easily determined which surface of the underground box the cable / pipe information is being browsed. In addition, as other installation examples, various installation forms such as one installation for a plurality of sides are conceivable. In the case of installation on the ground surface, it is not necessary to open the cover of the underground box, and the efficiency of the wireless tag installation work is improved.

FIG. 5 shows a second installation example of the wireless tag 2. If it is difficult to install the wireless tag 2 near the ground surface as shown in FIG. 4 due to the poor installation environment, it can be installed inside the underground box. Compared with the ground surface, the influence of heavy objects is eliminated, so that the wireless tag 2 does not need to have a structure that can withstand heavy objects.

FIG. 6 shows a third installation example of the wireless tag 2. If it is difficult to install on the inside or inside of the underground box, install it on the ground near the underground box. As described above, the wireless tag 2 of the present invention can be installed at any location near the underground box by processing, but it is desirable to install it at an optimum location for management and operation.

Explanatory drawing which shows the condition of the information reading using the underground box management system of this invention. The perspective view which shows the Example which installed the wireless tag in the underground box Figure showing information on pipelines and cables on an information terminal Sectional drawing which shows the 1st installation example of a wireless tag Sectional drawing which shows the 2nd example of installation of a wireless tag Sectional drawing which shows the 3rd example of installation of a wireless tag

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Underground box 2 Wireless tag 3 Antenna 4 Reader / writer 5 Information terminal 6 Wall surface

Claims (3)

Information on the type, destination, installation time, laying contractor, etc., and the name of the main body of the subsurface box installed on the ground surface near the upper part of the subsurface box and connected to any wall surface of the subsurface box , Wireless tags that hold information such as internal flooding status and toxic gas retention status,
Composed of an information terminal comprising a communication means with the wireless tag, and having a notification means for visually recognizing information related to the underground conduit / cable and the underground box main body, and related to the underground box in the field An underground box management system that enables information to be checked and updated and comprehensively manages information related to underground boxes. 2. The underground box management system according to claim 1, wherein information relating to the underground conduit / cable on the wall surface of the underground box and the main body of the underground box is held in a single wireless tag. 2. The underground box according to claim 1, which has a data processing structure capable of recognizing not only the pipeline / cable information connected to the wall surface of the underground box from the ground but also the arrangement of the pipeline on the wall surface. Management system.

Images