JP3320680B2 - Information collection device in pits for public facilities - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information collection device in a pit for public facilities which collects information on the objects installed in a pit for public facilities under a road and information on the connection status between the objects. About.

[0002]

2. Description of the Related Art Conventionally, various public facilities have been laid along a road, for example, a water pipe has been laid in a water supply facility, a sewer pipe has been laid in a sewer facility, a gas pipe has been laid in a gas facility, and a telephone pipe has been laid in a telephone facility. Cables are laid.

In these public facilities, a pit for public facilities is provided in the middle of a pipe or cable, in a water supply facility, a water control valve and a fire hydrant are provided in the pit for public facilities, and in a sewer facility, A drainage control valve as an installation is provided in the pit for public facilities, a gas control valve is installed in the pit for public facilities in gas facilities, and a pit is installed in the pit for public facilities in telephone facilities. A converter as an object is provided.

FIG. 5 is a diagram showing an example of such a road.
A pit 3 for public facilities is provided in the middle of the pipeline of the water supply pipe 2 extending along, and a water control valve 4 as an installation object is provided in the pit 3 for public facilities. The pit lid 5 is closed.

[0005] The pits 3 for public facilities under these road installations
When the pit cover 5 is opened during construction, breakdown, or repair, the state of the installed object is checked.

Conventionally, in order to perform this work, a worker goes to the site with a predetermined drawing laid on a public facility,
The state of the installed object is confirmed by opening the pit cover 5 of the pit 3 for public facilities to be inspected and visually checking the installed object or operating the installed object.

[0007]

However, in this conventional working method, the pit cover 5 of the pit 3 for public facilities is not used.
It is necessary to check the condition of the installed object by opening and checking the installed object with the eyes or operating the installed object. When carrying out inspections and checking of a plurality of public facility pits 3 that are required to be carried to the site, if at least one of the drawings is forgotten, the public facility pits 3 described in the drawings will be lost. The pits for public facilities 3 cannot be checked and checked when the emergency situation occurs.
There is a problem that it is difficult to quickly grasp the state of the installed object inside.

[0008] Further, when checking the state of the installed objects in the pits 3 for public facilities by operating the facilities, there is a possibility that the water supply facilities may be cut off, and the telephone facilities may cause a line accident or the like. May occur.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide information on an installation object installed in a pit for public facilities under road installation and a connection between the installation objects. It is an object of the present invention to provide an information collection device in a pit for public facilities that can collect status information without opening a pit cover.

[0010]

According to a first aspect of the present invention, there is provided an information collecting apparatus in a pit for public facilities, wherein the information collecting apparatus in the pit for public facilities under a road is connected to state information of the installed articles in the pit for public facilities. pit information storing unit for storing at least one of information and status information is provided on the back side of a pit lid of the public facilities pits, for the access to access information stored in the pits in the information storage unit An information collection device in a pit for public facilities which reads information stored in the pit information storage unit by a device provided with an antenna, wherein the pit information storage unit is attached to the pit lid. Case and
A memory unit provided in the case for storing information in the pit for public facilities, and a cylindrical coil provided immediately below the keyhole and provided in the case to supply power to the memory unit; Insert the antenna for access into the keyhole drilled in the pit lid
Possible and is inserted into the internal space of the cylindrical coil, characterized in that the access cylindrical coil generating an induced electromotive force based on the alternating magnetic field in the circular <br/> tube coil is provided. The information collection device in the pit for public facilities according to claim 2, wherein the information storage unit in the pit is rewritable by the device.

According to the first aspect of the present invention, a pit cover is provided.
A pit information storage unit is provided on the back of the body,
The information storage unit inside the pit can be attached to the pit lid
A case and a pit for public facilities provided in this case
Memory unit that stores the information of
Power supply to the memory unit
While it is composed of a cylindrical coil to be supplied,
An access cylinder that generates induced electromotive force based on a stray magnetic field
Since the coil is provided on the access antenna,
Access circle through the keyhole inside the cylindrical coil
Insert the cylinder coil securely and supply power to the memory unit.
Can be supplied, so that the AC magnetic
It is possible to exchange information using the inner space where the world density is high.
Can be. In addition, it is possible to read the status information of the installations installed in the pits for public facilities under the road and the connection status information between the installations without opening the pit lid. It is possible to quickly grasp the condition of the objects installed in the pit. Further, the information storage unit in the pit can be easily attached and detached, and the information unit in the pit can be protected from the outside.

[0012]

[0013]

[0014]

[0015]

[0016]

[0017]

[0018]

[0019]

[0020]

[0021]

[0022]

[0023]

[0024]

[0025]

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 2 is a schematic view showing a laid state of a water supply facility as a public facility.
2 is a water distribution pipe disposed along 2 and a reference numeral 13 is a water control valve as an installation object installed in a pit 14 for public facilities under road installation,
Reference numeral 15 denotes a fire hydrant as an installation object installed in the pit 16 for public facilities. The water control valve 13 and the fire hydrant 15 exist in the middle of the pipe of the water distribution pipe 11, and are connected by the water distribution pipe 11 as shown in this figure.

FIG. 1A is a sectional view showing an example of the pit 14 for public facilities. The pit 14 for public facilities is provided with a pit cover 17 made of an iron plate and exposed on the road surface 12a. The pit lid 17 has a keyhole 17 in the center.
a is provided. In some cases, the keyhole 17 a is provided around the pit lid 17. This keyhole 1
A keyed opening / closing hook member (not shown) is inserted into 7 a, and the pit lid 17 is engaged with the hook portion of the keyed opening / closing hook member on the back surface of the pit lid 17, and the pit lid 17 is closed. Can be opened by lifting.

An in-pit information storage unit 18 is provided on the back side of the pit cover 17. The in-pit information storage unit 18 plays a role in storing at least one of the state information of the installed object and the connection status information between the installed objects.

Here, the state information of the installed object is, for example,
When the installed object is a valve, it refers to the opening degree information of the valve, and the connection state information of the installed object is present in the pit 14 for public facilities (for example, indicated by a solid line in FIG. 2) to be inspected and its periphery. The connection status with the public facility pit 14 (shown by a broken line in FIG. 2) is referred to, and the connection status information of the installed object includes a positional relationship with respect to a road, a house, and the like.

The pit information storage unit 18 has a cylindrical body 19 as a case. The cylindrical body 19 is provided with a mounting flange portion 20. The pit information storage unit 18 is attached and fixed to the back surface of the pit lid 17 by attaching screws 21 via the attaching flange 20. The pit information storage unit 1
Reference numeral 8 is disposed on the pit lid 7 so as not to interfere with the keyed opening / closing hook member of the pit lid 17. Here, a falling-off prevention cover member 19a is fixed to a lower end surface of the cylindrical body 19 with a screw 19b. Note that the falling-off prevention cover member 19a may be formed integrally with the cylindrical body 19.

An inner cylinder 22 is provided inside the cylindrical body 19. The inner cylinder 22 is provided with a memory unit 23. The inner cylinder 22 is provided with a memory unit 2 by an induced electromotive force based on an alternating magnetic field from an access antenna of a handy type writing / reading device described later.
Cylindrical coil 2 serving as a coil body for supplying power to the power supply 3
4 are wound.

As shown in FIG. 3, the memory unit 23 includes a rectifier circuit 25 for rectifying the AC power induced by the AC magnetic field, a smoothing circuit 26 for smoothing the rectified output output from the rectifier circuit 25, and A DC power supply unit 27 for storing the smoothed output of the smoothing circuit 26 as a DC output, a filter 28 for extracting write information superimposed on the AC current induced by the AC magnetic field, and demodulating the write information. Circuit 29 for control and CPU 3 for control
0 and the demodulation information of the demodulation circuit 29
A memory 31 for storing information therein, and an oscillation circuit 32
And a modulation circuit 33 for modulating and outputting information stored in the memory 31 and a switch element 34.

The filter 28, demodulation circuit 29, CPU
30, oscillation circuit 32, modulation circuit 33, switch element 34
Constitutes a write / read circuit for writing information to the memory 31 and reading the information written to the memory 31.

The information recorded in the in-pit information storage unit 18 is readable and rewritable by a handy type writing / reading device 35 shown in FIG. 1B.

The handy type writing / reading device 35 includes an operation button 36, a display unit 37, and a keyhole 1
Access antenna 3 for accessing information stored in pit information storage unit 18 through 7a
8 is provided. The access antenna 38 is supported by an antenna support 39, and the antenna support 39 is provided with a stopper 40 for determining the insertion length of the access antenna 38. The antenna support 39 is electrically connected to the main body 35A via a cord 41. An access cylindrical coil 42 shown in FIG. 1C is disposed inside the access antenna 38.

As shown in FIG. 3, a DC battery 43, an oscillation circuit 44, and a modulation circuit 45 are provided inside the main body 35A.
, A memory 46, a control CPU 47, and a demodulation circuit 4
8 and a switch element 49 are provided.

At the time of writing, the CPU 47 executes processing for transmitting a write command to the CPU 30 and also transmits target file information, area address information, and write information to be stored in the memory 31. Also, C
The PU 47 performs a process of transmitting a read command to the CPU 30 at the time of reading, and a process of receiving target file information, area address information, and read information stored in the memory 31. Further, at the time of erasing, the CPU 47 performs a process of transmitting an erasure command to the CPU 30 and a process of transmitting target file information and area address information to be erased. These controls are performed by operating the operation buttons 36.

That is, the CPU 47 incorporates a data input software program, an information writing software program, an information reading software program, a data display software program, a software program for converting these software programs, and the like. Have been.

Next, the operation will be described. (1) At the time of writing When the write operation button 36 is operated and a predetermined operation button 36 is operated, the CPU 47 outputs a write command, target file information, area address information, and write information corresponding to the operation. Is superimposed by the modulation circuit 45, and an AC magnetic field H including the information is generated in the cylindrical coil 42 as shown in FIG.

Thus, an AC induced electromotive force including such information is generated in the cylindrical coil 24, and the rectifier circuit 25,
A DC output is generated by the smoothing circuit 26 and the DC power supply unit 27. Further, the induced electromotive force of the signal component is extracted by the filter 27, and the information is demodulated by the demodulation circuit 29. The CPU 30 stores the information in the memory 31 based on the information.
To write information. (2) At the time of reading When the operation button 36 for reading is operated and a predetermined operation button 36 is operated, the CPU 47 outputs a read command, read target file information, and read area address information corresponding to the operation. The information is superimposed by the modulation circuit 45, and an AC magnetic field H including the information is similarly generated in the cylindrical coil 42 as shown in FIG.

The CPU 47 closes the switch 49 based on the operation of the operation button, and the CPU 30 reads the read information from a predetermined area of the memory 31 based on the read command. , An AC magnetic field H including such information is similarly generated as shown in FIG.

An induced electromotive force including the read information is generated in the cylindrical coil 42, and the demodulation circuit 48 extracts the read information from the induced electromotive force and outputs it to the CPU 47.
The PU 47 displays the read information on the display unit 37 based on the read information.

For example, in the case of a water supply facility, a memory unit number, a valve number, a valve type, a valve opening state, a pipe diameter, a public facility pit existing around the target public facility pit and its inspection. The status of the connection with the pit for public facilities, a road map, and the like are displayed. (3) Erasing When the erase operation button 36 is operated and a predetermined operation button 36 is operated, the CPU 47 outputs an erase command, target file information, and area address information corresponding to the operation. An AC magnetic field H superimposed by the modulation circuit 45 and containing such information is generated in the cylindrical coil 42 as shown in FIG.

As a result, an induced electromotive force including such information is generated in the cylindrical coil 24, and a dc output is generated by the rectifier circuit 25, the smoothing circuit 26, and the dc power supply unit 27.
Further, the induced electromotive force of the signal component is extracted by the filter 27, and the information is demodulated by the demodulation circuit 29.
The CPU 30 erases the information in the memory 31 based on the information.

[0045]

[Modification] In the embodiment of the invention shown in FIG. 1, a cylindrical coil 24 is provided in a pit information storage unit, and a cylindrical coil 42 corresponding to the cylindrical coil 24 is provided in a loop antenna.
However, as shown in FIG. 4 (a), the case 19 is a square tube, and the flat plates 50, 51
A memory unit 52 is provided on the flat plate 50, and a spiral coil 53 is provided on each of the flat plates 50 and 51 as shown in FIG. 4B, and the spiral coils 53 are connected in series.
The access antenna 38 may be provided with a spiral coil corresponding to this, and an induced electromotive force may be generated by generating an AC magnetic field H as shown in FIG. 4C.

[0046]

According to the present invention, the back of the pit cover has a pin.
A pit information storage unit is provided to store the pit information.
A unit that can be attached to the pit lid
The information in the pit for public facilities is stored in the case of
Memory unit and the case located just below the keyhole and
Cylinder that is provided in the power supply and supplies power to the memory unit
Coil, while the cylindrical coil is
The access cylindrical coil that generates induced electromotive force.
The antenna is provided on the antenna for
A cylindrical coil for access through a keyhole in the space inside the
Can be inserted to supply power to the memory unit
Therefore, the density of the AC magnetic field of the cylindrical coil is high.
Information can be exchanged using the inner space.
In addition, it is possible to read the status information of the installations installed in the pits for public facilities under the road and the connection status information between the installations without opening the pit lid. The status of the objects installed in the pit can be quickly grasped. Further, the information storage unit in the pit can be easily attached and detached, and the information unit in the pit can be protected from the outside.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an information collecting device in a pit for public facilities according to the present invention, wherein (a) is an enlarged sectional view of a pit cover portion, and (b) is a writing / reading device of the writing / reading device. It is a schematic diagram showing an example, and (c) is an explanatory view of an AC magnetic field generated by electromagnetic induction in the cylindrical coil.

FIG. 2 is a schematic diagram showing a laying state of a pit for public facilities according to the present invention.

FIG. 3 is a block circuit diagram showing an example of an information collecting device in a pit for public facilities according to the present invention.

4A and 4B are diagrams showing a modified example of the in-pit information storage unit according to the present invention, wherein FIG. 4A is an enlarged sectional view of a pit cover portion, and FIG. 4B is a square tube shown in FIG. FIG. 2 is a schematic view for explaining a spiral coil formed on a flat plate provided in FIG. 1, and FIG. 2C is an explanatory view of an AC magnetic field generated by electromagnetic induction in the cylindrical coil.

FIG. 5 is a sectional view showing an example of a conventional public facility pit.

[Explanation of symbols]

 14 Pit for public facilities 17 Pit lid 18 Pit information storage unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 17/40-17/60 G06K 17/00-19/00 H02G 1/06 H04Q 9/00 E03B 5 / 10-9/00

Claims (2)

(57) [Claims] An information storage unit in a pit for storing at least one of state information of an installed object installed in a pit for a public facility under a road and information on connection status between the installed objects is provided for the public facility. Located behind the pit lid of the pit
It is, by the access antenna for accessing information stored in the pits in the information storage unit is provided apparatus, the information collecting device public facilities pit for reading the information stored in the pits in the information storage unit In the pit information storage unit, a case attached to the pit lid, a memory unit provided in the case to store information in the pit for public facilities, and located just below the keyhole And a cylindrical coil provided on the case to supply power to the memory unit, and the access antenna is provided on the pit lid.
Can be inserted into the keyhole provided, and
Is inserted into the side space information collecting apparatus in public facilities pit, characterized in that access cylindrical coil generating an induced electromotive force based on the alternating magnetic field in the cylindrical coil is provided. 2. The pit information collection device according to claim 1, wherein the pit information storage unit is rewritable by the device.