JP2006208268A - Marking pile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a border of a site to be checked easily and surely, even in the case some marking piles are lost among a plurality of marking piles driven into the border of the site. <P>SOLUTION: Figure information of a closed figure made up by a borderline (2) of the site (G) is stored in a wireless IC tag (7) built in a marking pile (1). The plurality of marking piles (1), (1) are driven into corners on the borderline (2) of the site (G) in order to define the border of the site (G), and when some marking piles (1), (1) are lost, the figure information of the closed figure stored in the wireless IC tag (7) of a remaining marking pile (1) is read, and the closed figure is checked with the corners of the border of the site (G) indicated by the remaining marking piles (1), (1), thereby recognizing the border. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a marking pile for marking a boundary of a site.

  In general, in order to clarify the boundary of a site, marking piles are driven along the boundary of the site. This type of marking pile should continue to clearly mark the boundary over time.

  However, the marking piles may be covered with fallen leaves, snow, etc., or buried in the ground due to large-scale disasters such as earthquakes or floods. In such cases, it is difficult to find the boundary. It was very cumbersome and required a lot of effort.

  Therefore, in recent years, as disclosed in Patent Documents 1 and 2, for example, an information recording element that records the position information of the marking pile is built in the marking pile, and information is recorded from the outside using a reader without contact. Various types of marking piles that can read information recorded in the element have been proposed.

  By driving such a marking pile along the boundary of the site, even if the marking pile is buried in a state where it cannot be seen from the outside, it is possible to easily check the boundary by reading the positional information of the marking pile.

JP 2001-229358 A JP 2000-18947 A

  However, in the conventional sign pile with the built-in information recording element, only the position information about the sign pile is recorded in the information record element, If any of the marking piles is pulled out and lost, the position of the lost marking pile cannot be grasped, making it difficult to check the boundary of the site.

  Then, this invention aims at provision of the marking pile which can confirm the boundary of the site which eliminates said malfunction and forms a closed figure simply and reliably.

  In order to solve the above problems, the marking pile of the present invention is driven, for example, at the corner of the boundary along the boundary of the site forming the closed figure, and various information can be read from the outside without contact. A possible information recording element is built in, and the graphic information of the closed figure is recorded in the information recording element.

  Moreover, the positional information of all the other marking piles driven along the said boundary is recorded on the said information recording element. The information recording element is composed of a passive wireless IC tag.

  The marking piles of this invention are driven into the corners of the boundary of the site, respectively, and the boundary of the site is fixed, so even if some of the marking piles are pulled out and lost, they remain. By reading the graphic information of the closed figure recorded in the information recording element of one of the marking piles, and comparing the closed figure with the corner of the boundary indicated by the existing marking pile, the lost marking pile can be driven It becomes possible to grasp the position and confirm the boundary easily and accurately.

  In addition, if the position information of all other marking piles driven along the boundary is recorded in the information recording element of the marking pile, all other marking piles except for one marking pile are lost. However, by reading the position information of the remaining marking piles, it is possible to ascertain the driving position of the lost marking pile and confirm the boundary easily and accurately.

  Furthermore, by using a passive wireless IC tag that does not require a power source as the information recording element, there is no fear of inoperability due to battery exhaustion or the like, and the boundary confirmation operation can be performed stably over a long period of time.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the marking pile (1) according to one embodiment of the present invention is driven into the corner on the boundary line (2) of the site (G) forming the closed figure, and the land (G ) Represents the boundary.

  As shown in FIGS. 2 and 3, the marking pile (1) is formed of a pile body (3) formed of a material that transmits radio waves, and a material that transmits the same radio waves. And a lid (4) fitted on the head.

  The tip of the pile body (3) is tapered and pointed, and an upper element opening space (6) that is closed by the lid (4) is formed at the head of the pile body (3). Yes. And the passive radio | wireless IC tag (7) as an information recording element is accommodated in the element accommodation space (6) of the pile main body (3).

  As shown in FIG. 4, the wireless IC tag (7) is used together with a reader / writer (10) to construct an RFID (Radio Frequency Identification) system. An antenna (11) and an IC chip (12 ) Is mounted and formed in a thin plate shape as a whole.

  The IC chip (12) includes a control unit (13) having a high-frequency circuit and the like, a recording unit (14) for recording various types of information, and the recording unit (14) includes the name and address of the landowner, In addition to management information such as driving date, ID number of the marking pile, position information of the marking pile (1), graphic information of the closed figure formed by the boundary line (2), and further, the boundary line (2) Position information of all other marking piles (1) (1)... Driven into the upper corner is recorded.

  The position information of the marking pile (1) is, for example, information indicating the latitude, longitude, and altitude of the position where the marking pile (1) is driven, and the position information of the other marking pile (1) (1). For example, it is information indicating respective distances in the X-axis, Y-axis, and Z-axis directions with reference to the marking pile (1).

  In addition, for example, in the case where the boundary of adjacent sites (G1), (G2), and (G3) is also shared, like the marked pile (1) shown in black in FIG. 5, the adjacent site ( The graphic information of the closed graphic at the boundary of G1), G2 and G3 and the positional information of the other marking piles (1), (1), etc. may be recorded together in the wireless IC tag (7).

  When the reader / writer (10) is brought close to the marking pile (1) and the interrogation wave is transmitted from the antenna of the reader / writer (10), the antenna (11) of the wireless IC tag (7) receives the interrogation wave. The control section (13) reads various information recorded in the recording section (14) by the power and clock signal obtained from the interrogation wave, and transmits the various information as response waves from the antenna (11). That is, the wireless IC tag (7) receives power supply by radio waves from the reader / writer (10) and transmits various information. The reader / writer (10) receives the response wave through the antenna. Thereby, various information recorded on the wireless IC tag (7) of the marking pile (1) can be read from the outside without contact.

  As shown in FIG. 6, marking piles (1), (1)... Configured in this way are driven into the corners of the boundary along the boundary line (2) of the site (G) forming the closed figure. Even if these marking stakes (1), (1), etc. are buried, they are recorded on the wireless IC tag (7) of the marking stakes (1), (1), using the reader / writer (10). By reading various information, the boundary of the site (G) can be easily and accurately confirmed from the various information.

  Moreover, for example, as shown in FIG. 7, even if some of the marking piles (1), (1) are pulled out and lost, one of the remaining marking piles ( 1) Read the graphic information of the closed figure recorded in the wireless IC tag (7) of (1) ..., and the boundary between the closed figure and the site (G) indicated by the existing marking pile (1) (1) ... By comparing the corners of the piles, the position of the lost marking pile (1) (1) ... can be grasped and the boundary can be easily and accurately confirmed. The lost marking pile (1) (1) ) ... can be easily restored by driving new marking piles (1) (1) ...

  Moreover, even if all other sign piles (1) (1) ... except for one sign pile (1) are lost, they are recorded on the wireless IC tag (7) of the remaining sign pile (1). Read the position information of the marking pile (1), the graphic information of the closed figure, and the position information of the other marking pile (1) (1) ... , Knowing the driving position of the lost marking pile (1) (1) ..., the boundary can be easily and accurately confirmed, and a new marking pile at the position of the lost marking pile (1) (1) ... (1) You can easily recover by typing (1).

  The present invention is not limited to the above embodiment, and it is needless to say that many modifications and changes can be made to the above embodiment within the scope of the present invention. For example, the information recording element in the marking pile of the present invention is not limited to a passive type wireless IC tag, but is an active type wireless IC tag or other information recording element capable of reading various information from outside without contact. Also good.

It is a perspective view which shows the installation state of the marking pile which concerns on one Embodiment of this invention. It is a disassembled perspective view of a marking pile. It is a longitudinal cross-sectional view of the element storage space vicinity of a marking pile. It is a block diagram of the radio | wireless IC tag of a marking pile. It is a figure which shows the marking pile shared as what also represents the boundary of an adjacent site. It is a top view which shows the installation state of a marking pile. It is a top view in the state where several marking piles were lost.

Explanation of symbols

(G) Site
(1) Marking pile
(2) Boundary line
(7) Information recording element (wireless IC tag)

Claims (4)

This is a marking stake that is driven along the boundary of the site that forms the closed figure, and an information recording element that can read various information from the outside without contact is built in, and the graphic information of the closed figure is stored in this information recording element. Marking pile characterized by being recorded. The sign pile according to claim 1, wherein position information of all other sign piles driven along the boundary is recorded in the information recording element. The marking pile according to claim 1 or 2, wherein the information recording element is a passive wireless IC tag. The marking pile according to any one of claims 1 to 3, which is driven into a corner portion of the boundary.

Images