JP2001195022A - Pin type marking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely and easily read out data information on a pipe cable which is laid under the ground, in real time. SOLUTION: A thrusting tip part 2 is driven into a road surface P corresponding to a place where the pipe cable Q laid under the ground exists and a chip- type recording medium 4 like an RF-ID(radio frequency-identification) element is burried in the inside of an exposed bolt head 3. Then, various data of the pipe cable Q laid under the ground are stored in the recording medium 4 and the writing of data or the reading of the data are made possible by inductive magnetic fields to be generated from a portable scanner 11. Moreover, the medium 4 is an IC chip which is provided with a storage circuit in which the writing and the reading of the various data of the pipe cable Q being laid under the ground are made possible by receiving electromagnetic waves from the scanner 11 and an RF transmitting and receiving circuit in which the transmitting of the various data of the pipe cable Q being stored in the storage circuit is made possible by receiving the inductive magnetic fields from the scanner 11. Furthermore, a liquid crystal display part 13 displaying the protective covering of soil and the width with floor recorded in the medium 4 is provided on the scanner 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a road surface corresponding to a location where underground pipes such as water pipes, gas pipes, oil pipes and the like, and underground cables such as power cables and communication cables exist. When repairing underground pipes or cables, or when excavation around underground pipes or cables is necessary for various types of construction, such underground pipes or underground cables are required. The present invention relates to a pin-type marking device capable of inputting information in which various types of data information such as cable covering can be read out in real time.

[0002]

2. Description of the Related Art Conventionally, as pin-type marking devices of this type, for example, buried pipes for mechanical equipment such as water pipes, gas pipes and oil pipes, and pipes for buried cables for electric equipment such as power cables and communication cables. For example, a display mark with a color-coded orientation / branch-shaped arrow is used to display the state of the orientation path or the branch path of the cable. This display mark indicates the type of machine / electricity, for example, "water" for a water pipe, "gas" for a gas pipe, "oil" for an oil pipe, and " In the case of communication cables, communication cables are displayed on the bolt heads of iron bolts together with color-coded character marks such as `` through '', and these bolts correspond to locations where pipes, cables, etc. are buried underground. They were cast and placed on road surfaces such as asphalt pavement. When repairing the pipes and cables themselves, and when excavating around pipes and cables buried in the ground during various constructions, etc., the indication of the bolt head display mark / character mark, By performing the work with the indication as a mark, the accident of cutting and breaking pipes and cables is prevented beforehand.

[0003]

However, in such a conventional pin-type marking device, display marks and character marks are difficult to see because the bolt head itself is small.
If the bolt head is covered with foreign matter such as contaminants, gravel, earth and sand, or the bolt head surface is damaged, the display mark and the character mark cannot be recognized at all.
In addition, in the past, the amount of information was limited to display marks and character marks, and much other information other than display marks and character marks, such as the type of pipe and cable, earth covering, floor width, etc., was displayed on a small bolt head. It is difficult to do so.

Accordingly, the present invention has been made in view of the above-mentioned various circumstances, and includes, for example, water pipes, gas pipes, and the like.
In a pin-type marker installed on the road surface corresponding to the location of underground cables such as oil pipes and underground cables such as power cables and communication cables, pipes buried underground
Non-contact type I in which a lot of other data information such as buried data such as cable type, earth covering, floor width, inspection date, contractor name, work content, etc. are enclosed in a small bolt head.
It is possible to read in real time from a recording medium such as a C chip, and also to write various data information amounts such as embedded data and history data on a recording medium sealed in a small bolt head. Provide a pin-type marking device that enables reliable and easy access to various data information such as buried data and history data even if it is covered with foreign matter such as gravel or earth or the bolt head surface is damaged. The purpose is to do.

[0005]

In order to solve the above-mentioned problems, according to the present invention, there is provided a plug-in tip 2 which is cast on a road surface P corresponding to a location where a pipe / cable Q is buried underground. And a bolt head 3 which is a chip-type recording medium capable of writing or reading various data of a tube / cable Q buried underground by an induced magnetic field generated from a portable scanner 11. 4 is a pin-type marking device 1 embedded in a bolt head 3. The recording medium 4 receives the electromagnetic waves from the scanner 11 and stores and stores the data by a storage circuit 5 capable of writing and rewriting various data of the pipe / cable Q buried underground and an induced magnetic field from the scanner 11. An IC chip including an RF transmitting / receiving circuit 6 capable of transmitting various data of the tube / cable Q stored in the circuit 5, for example, an IC chip having an RF-ID function of a non-contact type individual recognition technology. be able to. The recording medium 4 can be an IC tag sheet provided with an LC resonance circuit that resonates with an electromagnetic wave of a natural frequency from the scanner 11 and oscillates an echo wave of a predetermined frequency. The scanner 11 has a tube
A liquid crystal display for displaying various data written or rewritten on the recording medium 4 such as buried data such as the type of cable Q, earth covering, floor width and the like, inspection date, contractor name, work content, etc. It may have a portion 13.

[0006] In the pin-type marker device 1 according to the present invention configured as described above, the recording medium 4 embedded in the bolt head 3 is embedded in the ground by an induced magnetic field from the scanner 11. It is possible to read and write in real time many other data information such as buried data such as type of pipe / cable Q, earth covering, floor width, inspection date, contractor name, work content etc. . IC
When the RF transmitting / receiving circuit 6 receives an electromagnetic wave of a natural frequency from the scanner 11 by the RF transmitting / receiving circuit 6, the recording medium 4 receives the induced magnetic field, and stores the type of the tube / cable Q stored in the storage circuit 5, the cover, Real-time recognition of the data information of pipes and cables Q buried underground by transmitting various other data information such as buried data such as floor width, inspection date, contractor name, work content etc. Let it. The storage circuit 5 stores a large amount of write data and rewrite data of the pipe / cable Q, and transmits electromagnetic waves of a natural frequency from the scanner 11 to the RF transmission / reception circuit 6 to bury embedded data, history data, and many other data. Enables update / addition of data information.
Recording medium 4 using IC tag sheet provided with LC resonance circuit
Allows the real-time reading of data information of the pipe / cable Q buried underground by oscillating an echo wave of a predetermined frequency by resonating with an electromagnetic wave of a natural frequency from the scanner 11. The liquid crystal screen display unit 13 of the scanner 11 displays buried data such as the type of the pipe / cable Q written on the recording medium 4, the earth covering, the floor width, or the inspection date, the contractor name, and the work content. By displaying the history data such as the above, the operation and management of the pipe / cable Q buried underground can be efficiently performed and the maintenance can be improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
Is a pin that is cast on a road surface P such as an asphalt pavement surface, which corresponds to a location of an underground pipe such as a water pipe, a gas pipe, an oil pipe, or an underground cable such as a power cable or a communication cable. It is a type marking device. As shown in FIG. 2, this pin-type marking device 1 has a piercing tip 2 around which a gently spiral rib 2A for firmly penetrating the inside of the road surface P is formed, and only the upper surface is exposed on the road surface. And a disk-shaped bolt head 3. And bolt head 3
A circular concave portion 3A is formed on the upper surface, and a chip-shaped recording described later air-tightly sealed in the concave portion 3A with a sealing material 4A made of a synthetic resin such as a silicone resin or an epoxy resin that can transmit electromagnetic waves. The recording medium 4 is held by a claw 3B in which the medium 4 is embedded and the peripheral edge of the upper end of the opening of the recess 3A is compressed and deformed inward. The pin tip 2 and the bolt head 3 of the pin-type marking device 1 are made of, for example, boron steel, and their surfaces are plated with, for example, ZN unichrome.

The recording medium 4 is in the form of a chip.
As shown in FIG. 3, for example, the whole is about 18 mm in diameter and about 2.7 thickness in thickness by low-temperature vulcanization of a silicone resin at about 50 ° C.
mm disk-shaped IC chip, for example, a so-called RF-I with an RF-ID function of a non-contact type individual recognition technology
It is formed as a D element, receives electromagnetic waves from the scanner 11 described later, and stores and stores the pipe / cable Q buried in the ground, for example, the type of the pipe / cable Q, earth covering, flooring width, etc. ROM5A for reading out various data information such as buried data, inspection date, contractor name, history data such as work contents, etc., once erasing various stored data information and rewriting to new data about 100,000 times EEPROM5 that can be rewritten over
B receives the electromagnetic waves from the scanner 11 such as 13.56 MHz short wave band and 125 KMz long wave band from the scanner 11 and reacts to the induced magnetic field thereof. The data is written or rewritten to the recording medium 4 such as the type of the pipe / cable Q stored in the storage circuit 5, the embedded data such as the earth covering and the floor width, the inspection date, the contractor name, the history data such as the work content, and the like. An RF transmitting / receiving circuit 6 having a coil circuit configuration capable of transmitting various data information to be transmitted, and a CPU circuit 7 for controlling the storage circuit 5 and the RF transmitting / receiving circuit 6 are mounted inside an IC chip.

The CPU circuit 7 has two I / O ports 7A and 7 for LED driving, I / O1 and I / O2.
B and a single RSTB 7C are connected, and the RF transmitting / receiving circuit 6 has CV / dd-6A, CGND-6B, and S1-6.
C and S2-6D are connected, and communication protocols such as a trade-off function and a user-defined communication command addition function can be optimized according to the application of communication error rate and communication speed. Multiple writing is enabled.

On the other hand, a scanner 1 capable of writing or reading various data recorded on a recording medium 4.
Numeral 1 is a so-called portable ID scanner. That is, as shown in FIG. 1, for example, a communication distance for transmitting an electromagnetic wave such as a short wave band of 13.56 MHz or a long wave band of 125 KMz to the surroundings by applying an AC signal to the scanner 11 is about Antenna part 12 with built-in coil circuit of about several tens cm
By reading the induced magnetic field of the natural frequency generated in the RF transmission / reception circuit 6 itself by receiving the induced magnetic field by the antenna unit 12, various data information stored and stored in the tube / cable Q buried underground is read out. A liquid crystal screen display unit 13 for displaying the same on a screen is provided.

FIG. 4A shows the liquid crystal display section 13.
, The cable display unit 13A, the type display unit 13
B, the cover display section 13C and the floor width display section 13D are displayed, and the pipe burial data such as the type of the pipe / cable Q written on the recording medium 4, the cover, the floor width, the inspection date, and the contractor Various data written or rewritten on the recording medium 4 such as history data such as names and work contents are output and displayed. Specifically, the type of the pipe / cable Q is displayed on the cable display section 13A, for example, "water" for a water pipe, "gas" for a gas pipe, "oil" for an oil pipe, and an electric cable. In the case of a communication cable, a selection display such as "den", and in the case of a communication cable, "communication" is displayed.
3B displays a pipe type, a pipe diameter, the number of strips, etc., a cover display section 13C displays a distance from the road surface P to the pipe / cable Q, and a floor width display section 13D displays the pipe / cable Q. The floor width is displayed.

As shown in FIG. 4B, an inspection date display section 13E, a contractor name display section 13F, and a work content display section 13G are also displayed on the liquid crystal screen display section 13 and written on the recording medium 4. It outputs and displays history data such as inspection date, contractor name, and work contents. still,
The embedded data, history data, and the like can be displayed on the liquid crystal screen display unit 13 of the scanner 11 simultaneously or in a switching manner, and various data required for pipes, cables, and other various embedded objects are recorded. These are freely displayed in correspondence with being stored in the medium 4.

As shown in FIG. 1, the scanner 11 is provided with an operation unit 14 such as a character input key, a calculation key, a numeric keypad, and an antenna operation key.
After once deleting the data information stored and stored in the storage circuit 5 by the PROM, the data is rewritten with new data while being input to the liquid crystal screen display unit 13 by the operation unit 14.
The data is transmitted to the recording medium 4 again via the antenna unit 12 and stored in the storage circuit 5. The liquid crystal screen display unit 13 can also display data information required for underground buried pipe and underground cable work other than the buried data and history data.

Next, an example of use and operation of the embodiment configured as described above will be described. For example, as shown in FIG. 1, for example, repair work for underground pipes and underground cables themselves, In various works requiring excavation around the underground pipes and cables, the coil-shaped antenna section 12 of the scanner 11 is brought close to the pin-type marking device 1 by about several tens of cm, and the operation section 14 of the scanner 11 is operated. When an AC signal is supplied to the antenna unit 12, an electromagnetic wave having a natural frequency is transmitted from the scanner 11 to the bolt head 3 of the pin-type marker device 1.

When an electromagnetic wave is transmitted by the scanner 11 toward the bolt head 3 of the pin-type marking device 1, the RF transmitting / receiving circuit 6 of the recording medium 4 embedded in the bolt head 3 receives an induction magnetic field from the scanner 11 and receives an RF signal. The transmission / reception circuit 6 generates an induced AC electromotive force. At this time, the RF transmitting / receiving circuit 6
An induced magnetic field corresponding to an external electromagnetic wave having a natural frequency is generated based on its own inductance, and this signal is captured by the antenna unit 12 of the scanner 11 and is transmitted to the liquid crystal screen display unit 13.
, It is possible to read out in real time various data information such as the covering of the pipe / cable Q buried underground and the width of the floor.

On the other hand, when updating the data information stored in the storage circuit 5 by the EEPROM, the scanner 1
The operation unit 14 once erases the data information stored in the storage circuit 5 by the EEPROM of the recording medium 4 and then rewrites the data information with new data while outputting the data information to the liquid crystal screen display unit 13 by the operation unit 14. After the antenna part 1
2 to the recording medium 4 and store it in the storage circuit 5 again. In this way, the induced magnetic field generated between the antenna section 12 of the scanner 11 and the RF transmission / reception circuit 6 of the recording medium 4 is used as an information transmission medium.

In this embodiment, the recording medium 4 in the form of an IC chip is employed. However, other components are not shown in the figure. For example, the recording medium 4 resonates with an electromagnetic wave having a natural frequency from a scanner. An IC tag sheet including an LC resonance circuit that oscillates an echo wave of a predetermined frequency can be used. That is, the LC resonance circuit of this IC tag sheet is composed of an inductance element formed of a spiral conductive foil and a capacitance element formed by sandwiching a dielectric layer on an electrode plate formed at the other end of the inductance element. The inherent resonance frequency of the LC resonance circuit is determined by the total number of turns of the spiral conductive foil as an inductance element and the dielectric constant and thickness of a dielectric element as a capacitance element sandwiched between a pair of conductive foils. It is to be determined. Then, this IC tag sheet is adhered to the bottom side of the concave portion formed on the upper surface of the bolt head 3 of the pin-type marker device 1, and the concave portion is tightly fitted with a synthetic resin lid capable of transmitting electromagnetic waves. As described above, an echo wave is oscillated from the recording medium 4 by resonating with an external electromagnetic wave having a frequency substantially the same as the natural resonance frequency set in the recording medium 4. Is recognized.

[0018]

As described above, according to the present invention, a road surface corresponding to a location where underground cables such as water pipes, gas pipes, oil pipes and the like, and underground cables such as power cables and communication cables exist. In the pin-type marker device 1 to be cast on the P, a recording medium 4 in which various types of data information such as the type of underground pipe / underground cable, earth covering, flooring width, etc. are enclosed in a small bolt head 3. The data can be read in real time, and various amounts of data information can be written on the recording medium 4 enclosed in the small bolt head 3, and the bolt head 3 is covered with foreign substances such as contaminants, gravel, earth and sand. Even if the bolt head 3 is damaged or the surface of the bolt head 3 is damaged, various data information of the pipe / cable Q buried underground can be obtained reliably and easily.

That is, according to the present invention, the portable scanner comprises a plug-in point 2 and a bolt head 3 which are driven into a road surface P corresponding to the location of a pipe / cable Q buried underground. This is because the recording medium 4 capable of writing or reading various data of the pipe / cable Q buried in the ground is buried inside the bolt head 3 by the induction magnetic field generated from the ground 11, and thereby,
Even when it is necessary to repair the cable Q itself or to excavate around the pipe / cable Q buried in the ground for various constructions, the scanner 11 can be attached to the recording medium 4 simply by bringing the scanner 11 close to the bolt head 3 without contact. The written data of pipes and cables Q buried in the ground can be easily recognized, and by performing construction based on this data, the accident of cutting and breaking pipes and cables Q buried from the beginning can be prevented. Can be prevented, and the time for excavation work can be reduced.

The recording medium 4 is a storage circuit 5 which receives electromagnetic waves from the scanner 11 and is capable of writing and rewriting various data of a pipe / cable Q buried underground.
Receiving the induced magnetic field from the scanner 11 and the storage circuit 5
Since the IC chip is provided with an RF transmitting / receiving circuit 6 capable of transmitting various data of the pipe / cable Q stored in the head, the bolt head 3 is concealed by gravel, earth and sand, dust, dirt and the like. The recording medium 4 is also transmitted by a transparent electromagnetic wave.
Can easily recognize various data information of the pipe / cable Q recorded on the storage medium 5, and furthermore, the data can be freely written on the recording medium 4 by the storage circuit 5.・ Even when data modification such as change is required, rewriting can be easily performed.

The recording medium 4 is an IC tag sheet provided with an LC resonance circuit that resonates with an electromagnetic wave of a natural frequency from the scanner 11 and oscillates an echo wave of a predetermined frequency. Even if the recording medium 4 is concealed by earth, sand, dust, dirt, etc., the recording medium 4 is transmitted by electromagnetic waves having transparency.
Can easily recognize various data information of the pipe / cable Q recorded in the.

The scanner 11 writes or writes on the recording medium 4 such as buried data such as the type of pipe / cable Q, earth covering, floor width, inspection date, contractor name, work content, etc. Since it has the liquid crystal screen display unit 13 for displaying various data to be replaced, it is possible to efficiently operate and manage underground pipes such as water pipes, gas pipes, oil pipes, and underground cables such as power cables and communication cables. It can be performed and the effect can be expected for maintenance.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a use state according to an embodiment of the present invention.

FIG. 2 is a partially longitudinal side view of the same.

FIG. 3 is a circuit block diagram of an example of a recording medium.

FIG. 4 illustrates an example of a liquid crystal screen display unit of the scanner.
(A) is a plan view showing a state in which buried data such as pipe / cable type, earth covering, flooring width and the like are displayed, (b) is an inspection date,
It is a top view showing the state where history data, such as a contractor name and work content, was displayed.

[Explanation of symbols]

P: Road surface Q: Pipe / cable 1 ... Pin-type marking device 2 ... Inserting point 2A ... Rib 3 ... Bolt head 3A ... Recess 3B ... Claw 4 ... Recording medium 4A ... Sealing material 5 ... Storage circuit 5A ... ROM 5B ... EEPROM 6 ... RF transmitting and receiving circuit 6A ... CV / dd 6B ... CGND 6C ... S1 6D ... S2 7 ... CPU circuits 7A, 7B ... I
/ O port 7C RSTB 11 Scanner 12 Antenna unit 13 LCD screen display unit 13A Cable display unit 13B Classification display unit 13C Cover display unit 13D Floor width display unit 13E Inspection date display unit 13F Contractor name display section 13G ... Work content display section 14 ... Operation section

Claims (4)

[Claims] 1. A pin-type marking device comprising a plug-in point and a bolt head which are installed on a road surface corresponding to a location of a pipe or cable buried in the ground, wherein a guide generated from a portable scanner is provided. A pin-type marking device characterized in that a chip-type recording medium capable of writing or reading various data of pipes and cables buried underground by a magnetic field is buried inside a bolt head. 2. A recording medium which receives an electromagnetic wave from a scanner and which can write and rewrite various data of a pipe / cable buried in the ground, and stores the information by an induced magnetic field from the scanner. Tubes stored in the circuit
2. The pin-type labeling device according to claim 1, wherein the device is an IC chip including an RF transmitting / receiving circuit capable of transmitting various data of a cable. 3. The pin-type marker according to claim 1, wherein the recording medium is an IC tag sheet having an LC resonance circuit that resonates with an electromagnetic wave of a natural frequency from a scanner and oscillates an echo wave of a predetermined frequency. apparatus. 4. The scanner has a pipe / cable type,
Burial data such as earth covering, floor width, inspection date, contractor name,
The pin-type marker device according to any one of claims 1 to 3, further comprising a liquid crystal screen display unit for displaying various data written or rewritten on a recording medium such as history data such as work contents.