JP2018189508A - Water level gauge and communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water level gauge which is designed to be attachable to the cover of a waterway, and which is easily attachable and available at low cost.SOLUTION: The case of a water level gauge 1 comprises a case part the bottom of which is planar, a lid part for closing up an aperture plane of the case part, and an extension part extending downward from the underside, the inside of the case being designed to be a containment space. Contained in the case is a substrate on which a circuit for detecting a water level and a circuit for producing warning display, etc. are assembled. The extension part is inserted into a groove part 16b formed in a waterway lid 16 for closing up an opening above a U-shaped groove and the case part is fastened to the groove part 16b, thus allowing the water level gauge 1 to be fastened to the waterway lid 16 by simple attachment work.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a water level gauge that is easily attached.

There are two types of flooding in which river water overflows outside, such as a dike, flooding outside water and flooding inside water. In contrast to the flooding of the outside water that occurs when the water level of the river itself rises, the flooding of the inland water occurs when the amount of rain that falls on the urban area exceeds the capacity of the city. Normally, inland water is drained into rivers by sewer storm water pipes and pumping facilities. However, if the capacity of the facility cannot keep up with the amount of rainfall, or if the outside water level rises and cannot be drained, the inland water will be damaged. As a result, buildings, land, roads, etc. will be submerged in water. In recent years, the risk of damage from inland flooding has increased with the occurrence of localized heavy rains such as guerrilla heavy rains and the progress of urbanization.
By the way, when the water level of a waterway is detected and the water level exceeds a predetermined water level, it can be determined that there is a high risk of inundation. In order to detect the water level of a water channel, it is necessary to install a water level meter in the water channel.

  The conventional water level meter described in Patent Document 1 is a water level meter that detects the water level in a non-contact manner, and a wave-dissipating tube with a cavity inside is installed under the measurement water surface, and a float is placed on the water surface inside the wave-dissipating tube Float. Since the float moves up and down at the same distance as the surface of the water, the transmitted laser beam is sent from the laser rangefinder installed at the top of the quenching tube to the float, and the reflection is received by the laser rangefinder to the float. Find the distance. The water level can be determined by adding the distance between the upper end of the float and the water surface to the distance measured by the laser rangefinder.

JP 2010-249790 A

With a conventional water level meter using a laser distance meter, it is difficult to easily install the water level meter in the water channel because of its structure, and an expensive laser distance meter, a quenching tube, etc. are required, resulting in a low installation cost. There was a problem of being covered.
Therefore, an object of the present invention is to provide a water level meter that can be attached to a lid of a water channel, can be easily mounted, and can be inexpensive.

  The water level meter of the present invention comprises a case portion having a flat bottom surface, a lid portion that closes the opening surface of the case portion, and an extending portion that extends downward from the bottom surface, and the inside is a storage space. A case and a water level sensor housed in the extension portion of the case, a detection means for detecting the water level based on a signal from the water level sensor, and when a significant water level is detected by the detection means The warning display section that emits light and the power supply section are stored at least in the storage space of the case, and the shape of the extending section can be inserted into a hole that penetrates the lid formed on the lid of the water channel The main feature is that the case is fixed around the hole.

  The water level meter of the present invention comprises a case portion having a flat bottom surface, a lid portion that closes the opening surface of the case portion, and an extending portion that extends downward from the bottom surface. And a water level sensor housed inside the extending portion of the case, and the shape of the extending portion is a shape that can be inserted into a hole that penetrates the lid formed in the lid of the water channel. The main body is fixed around the hole. As a result, the water level gauge of the present application can be attached to the lid of the water channel by inserting the extending portion into the hole formed in the lid of the water channel and fixing the case body around the hole by bonding or the like. It can be fixed. Therefore, the water level gauge of the present invention can be easily attached to the lid of the water channel and can be made inexpensive.

It is a perspective view which shows the structure of the water level meter of 1st Example of this invention. It is a top view which shows the structure of the water level meter of 1st Example of this invention. It is a front view which shows the structure of the water level meter of 1st Example of this invention. It is a front view which shows the structure of the water level meter of 1st Example of this invention with AA sectional drawing. It is the exploded view shown in the perspective view which looked at the composition of the water level indicator of the 1st example of the present invention from the front slanting upper part. It is the exploded view which shows the structure of the water level meter of 1st Example of this invention with the perspective view seen from the front diagonally downward. It is a perspective view which shows the aspect of the attachment of the water level gauge of 1st Example of this invention. It is a perspective view which shows the state which attached the water level gauge of 1st Example of this invention. It is a functional block diagram which shows the structure of the water level meter of 1st Example of this invention. It is a perspective view which shows the structure of the water level meter of 2nd Example of this invention. It is the perspective view seen from the front diagonal upper direction which shows the aspect of attachment of the water level meter of 2nd Example of this invention. It is the perspective view seen from the front diagonally downward which shows the aspect of attachment of the water level meter of 2nd Example of this invention. It is a top view which shows the state which attached the water level gauge of 2nd Example of this invention. It is a bottom view which shows the state which attached the water level gauge of 2nd Example of this invention. It is the side view which shows the state which attached the water level gauge of 2nd Example of this invention, and the side view shown by BB sectional drawing. It is another side view which shows the state which attached the water level gauge of 2nd Example of this invention, and the other side view shown by CC sectional drawing. It is a perspective view which shows the structure of the water level meter of 3rd Example of this invention. It is the exploded view which shows the structure of the water level meter of 3rd Example of this invention with the perspective view which looked at the front diagonally upward. It is the exploded view which shows the structure of the water level meter of 3rd Example of this invention with the perspective view seen from the front diagonally downward. It is the perspective view seen from the front diagonal upper direction which shows the aspect of attachment of the water level meter of 3rd Example of this invention. It is the perspective view seen from the front diagonally lower direction which shows the other aspect of attachment of the water level gauge of 3rd Example of this invention. It is a perspective view which shows the state which attached the water level gauge of 3rd Example of this invention. It is a perspective view which shows the state which attached the water level gauge of 3rd Example of this invention with the permeation | transmission figure. It is a front view which shows the state which attached the water level gauge of 3rd Example of this invention. It is the side view which shows the state which attached the water level gauge of 3rd Example of this invention, and the side view shown by DD sectional drawing. It is a perspective view which shows the structure of the water level meter of 4th Example of this invention. It is a front view which shows the structure of the water level meter of 4th Example of this invention. It is a top view which shows the structure of the water level meter of 4th Example of this invention. It is a bottom view which shows the structure of the water level meter of 4th Example of this invention. It is the exploded view which shows the structure of the water level meter of 4th Example of this invention with the perspective view seen from front diagonally upward. It is the exploded view which shows the structure of the water level meter of 4th Example of this invention with the perspective view seen from the front diagonally downward. It is the perspective view seen from the front diagonal upper direction which shows the aspect of attachment of the water level meter of 4th Example of this invention. It is the perspective view seen from the front slanting bottom which shows the aspect of attachment of the water level meter of 4th Example of this invention. It is a perspective view which shows the state which the water level meter of 4th Example of this invention was attached. It is a top view which shows the state which the water level gauge of 4th Example of this invention was attached. It is a front view which shows the state which the water level meter of 4th Example of this invention was attached. It is a functional block diagram which shows the structure of the water level meter of 4th Example of this invention. It is a functional block diagram which shows the structure of the warning system which is an example of application of the water level gauge of 4th Example of this invention. It is a figure which shows the other example of application of the water level gauge of 4th Example of this invention.

A water level meter according to an embodiment of the present invention includes a water level detecting means for detecting a water level and a warning display means having a light emitting unit, and emits light when the water level detected by the water level detecting means is equal to or higher than a specified water level. The part is lit and a warning display means displays a warning.
In the description of the water level meter of the embodiment of the present invention, it is generally referred to as “flooding” that a house or the like is immersed in water, and “flooding” that a field or road is immersed in water. In the specification, "flooding" and "flooding" are treated as synonyms meaning that houses, fields, roads, etc. are submerged in water, and in the following explanation, "flooding" is used unless otherwise specified. .

<First embodiment>
The physical structure of the water level gauge 1 of the first embodiment of the present invention is shown in FIGS. FIG. 1 is a perspective view showing the configuration of the water level gauge 1 of the first embodiment, FIG. 2 is a top view showing the configuration of the water level gauge 1 of the first embodiment, and FIG. 3 shows the configuration of the water level gauge 1 of the first embodiment. FIG. 4 is a front view showing the configuration of the water level gauge 1 of the first embodiment in the AA cross-sectional view, and FIG. 5 is a perspective view of the configuration of the water level gauge 1 of the first embodiment as viewed obliquely from the front. FIG. 6 is an exploded view showing the configuration of the water level gauge 1 of the first embodiment in a perspective view seen obliquely from the front.
The configuration of the water level gauge 1 of the first embodiment will be described below with reference to these drawings. The water level gauge 1 of the first embodiment according to the present invention is a substantially disk-shaped case in which the interior made up of a resin or metal case portion 1-1 and a resin lid portion 1-2 is a storage space. The extending portion 1-1a extends downward from the lower surface of the case. As shown in FIGS. 5 and 6, the case portion 1-1 includes a substantially circular flat bottom plate, and a cylindrical flange portion 1-1b is formed upward from the periphery of the bottom plate, and downward from substantially the center of the bottom plate. A cylindrical elongated extending portion 1-1a having a thin diameter is formed. Moreover, the cover part 1-2 is provided with the substantially circular upper board, and the cylindrical collar part 1-2c is formed below from the periphery of the upper board. The upper plate is formed in a taper shape in which the central portion is a flat plate shape and is inclined downward toward the peripheral edge. A display window 1-2a is formed in a flat plate portion of the upper plate, and a light emitting unit 12 constituting a warning display unit faces the display window 1-2a. A solar panel 11 having an arc shape with a predetermined width is fixed to the tapered portion of the upper plate by adhesion. Bonding is performed by double-sided tape or an adhesive. The lid 1-2 is preferably made of a light transmissive resin.

  For the case, the lid 1-2 is disposed on the case 1-1, and the flange 1-2c is fitted so that the flange 1-1b is on the inside, and is fixed by welding, adhesion, or the like. The inside of the case is a storage space. As shown in FIGS. 4 to 6, in this storage space, a first substrate 10a in which components such as a circuit for detecting a water level and a circuit for displaying a warning are assembled in the water level gauge 1 of the first embodiment, and The second substrate 10b is built in. Moreover, the inside of the extending portion 1-1a is also a storage space, and a first sensor 13a, a second sensor 13b, and a third sensor 13c that constitute a sensor portion that detects the water level are incorporated therein. The first sensor 13a, the second sensor 13b, and the third sensor 13c are sensors for detecting the water level based on different principles. For example, the first sensor 13a is an ultrasonic sensor for detecting the water level using ultrasonic waves. The water level is detected from the reflection time until the ultrasonic wave emitted from the first sensor 13a returns. The second sensor 13b and the third sensor 13c are electrostatic sensors that detect the water level using the fact that the capacitance of the electrode changes when the water level rises to the position of the electrode of the second sensor 13b or the third sensor 13c. It is a capacitive sensor.

  A light emitting unit 12 constituting a warning display unit is provided on one surface of the first substrate 10a at a predetermined height facing the display window 1-2a, and is drawn out from the light emitting unit 12 including an LED (light emitting diode) or the like. The lead wires thus obtained are soldered to the first substrate 10a. In addition, the secondary battery 14 charged by the solar panel 11 is disposed on one surface of the first substrate 10a and predetermined wiring is performed. The secondary battery 14 functions as a power source for the water level gauge 1. The second substrate 10b is connected to the first substrate 10a with a lead wire, and a microcontroller (not shown) is arranged and predetermined wiring is performed. The microcontroller is a control means that performs overall control of the operation of the water level gauge 1 of the first embodiment. Further, the lead wire 11a drawn out from the solar panel 11 is inserted into the insertion hole 1-2b formed in the lid portion 1-2 and soldered to the first substrate 10a. The first sensor 13a to the third sensor 13c provided at the tip of the lead wire 13d soldered to the second substrate 10b extend from the storage hole 1-1c formed in the approximate center of the case portion 1-1. 1-1a is inserted and stored. And when the 1st board | substrate 10a and the 2nd board | substrate 10b are accommodated in a case, the lower surface comes to contact | abut to the boss | hub 1-1d formed in the upper surface of the baseplate of the case part 1-1, respectively.

  The aspect which attaches the water level gauge 1 of 1st Example to the cover of a waterway is shown in FIG. As shown in FIG. 7, the water channel is constituted by a U-shaped groove 15, and the upper portion of the U-shaped groove 15 is closed by a water channel lid 16. The water channel lid 16 has a rectangular shape with a predetermined length which is horizontally long, and a rectangular cutout portion 16a is formed substantially at the center of the short side. The water channel lid 16 is arranged without a gap between the adjacent water channel lids 16 and closes the upper surface where the U-shaped groove 15 is opened, but the notch portion 16 a faces the adjacent water channel lid 16. A groove portion 16b is formed. The extending portion 1-1a of the water level gauge 1 of the first embodiment is inserted into the groove portion 16b from above. And the water level indicator 1 of 1st Example is fixed to the water channel cover 16 by adhere | attaching the flat lower surface of the case part 1-1 to the circumference | surroundings of the groove part 16b. The fixed state is shown in FIG. 8, and the extending portion 1-1a protrudes downward so as to protrude as possible from the lower surface of the water channel lid 16, and the first sensor 13a accommodated in the extending portion 1-1a. Or the water level in the U-shaped groove 15 can be detected by the third sensor 13c.

  FIG. 9 is a functional block diagram showing the electrical configuration of the water level gauge 1 of the first embodiment. As shown in FIG. 9, the water level gauge 1 of the first embodiment includes a microcontroller 150, a sensor unit 151, and a warning display unit 153, which are connected by a bus. In addition, a power supply unit 156 that supplies power to each unit is provided. As described above, the sensor unit 151 includes the first sensor 13a to the third sensor 13c, the warning display unit 153 includes the light emitting unit 12, and the power source unit 156 includes the solar panel 11 and the secondary battery 14. ing. The microcontroller 150 is a control unit that performs overall control of the operation of the water level gauge 1. In this case, it is also possible to save power by periodically detecting the water level with the first sensor 13a and activating the second sensor 13b and the third sensor 13c when a significant water level is detected. . In addition, since the first sensor 13a, which is an ultrasonic sensor, may mistakenly detect a flowing object as water, the first sensor 13a is used for starting the second sensor 13b and the third sensor 13c. It is also possible to prevent erroneous detection by determining in combination.

Since the water level meter 1 of the first embodiment is attached by simply inserting and bonding it to the groove portion 16b of the water channel lid 16 of the water channel such as an irrigation channel as described above, the construction can be easily performed. As described above, since the water level meter 1 of the first embodiment has a simple configuration, it can be an inexpensive water level meter. When the water level in the water channel rises and becomes higher than the specified water level by the water level meter 1 of the first embodiment, the light emitting unit 12 constituting the warning display unit 153 is turned on, and this light emission is reduced. It becomes visible from the outside. That is, in the water channel having the water channel lid 16, the water level of the U-shaped groove 15 can be detected even in an environment where the water level of the U-shaped groove 15 cannot be visually recognized by the water channel lid 16. Sometimes, it is possible to recognize that the water level of the U-shaped groove 15 has risen by performing warning light emission by the light emitting unit 12.
Further, even when the water level gauge 1 of the first embodiment is submerged as the water level rises, it can be visually recognized by the function of the warning display unit 153, and it can be seen that submergence occurs at that point. Furthermore, it is possible to reduce the risk of a person or vehicle colliding with the water level indicator 1 of the first embodiment that is emitting light.

<Second embodiment>
The configuration of the water level meter 2 of the second embodiment of the present invention is a water level meter suitable for the case where the water channel lid is a grating which is a groove lid formed by assembling steel materials in a lattice shape. The water level gauge 2 of the second embodiment is configured to have four mounting holes in the water level gauge 1 of the first embodiment, and the other configurations are the same as the configuration of the water level gauge 1 of the first embodiment. Therefore, the description regarding the configuration other than the four mounting holes is omitted.
The configuration of the water level gauge 2 of the second embodiment of the present invention is shown in FIG. As shown in FIG. 10, the water level gauge 2 of the second embodiment is a substantially disc-like shape composed of a resin-made or metal case part 2-1, and a resin-made lid part 2-2. A case is provided, and the extending portion 2-1a extends downward from the lower surface of the case. Four attachment holes 2a-1 are formed in the case part 2-1. A cylindrical extending portion 2-1a having a small diameter extending downward from substantially the center of the case portion 2-1 is formed. Moreover, the cover part 2-2 is provided with the substantially circular upper board, and the upper board is formed in the taper shape which makes the center part flat form and inclines below toward a periphery. Four attachment holes 2a-2 penetrating the lid portion 2-2 are formed in the tapered portion at intervals of about 90 °. A display window 2-2a is formed in a flat plate-like portion of the upper plate, and a light-emitting section that constitutes a warning display section faces the display window 2-2a. A solar panel 21 having an arc shape with a predetermined width is fixed to the tapered portion of the upper plate by adhesion.

  The case is configured by fitting the flange portion of the lid portion 2-2 on the flange portion of the case portion 2-1, and fixing the lid portion by welding, adhesion, or the like, and the inside of the case is a storage space. The mounting hole 2a-2 formed in the lid part 2-2 communicates with the four mounting holes 2a-1 formed in the case part 2-1, and the four mounting holes 2a-1, 2a-2 penetrating the case. Is formed from the cover part 2-2 to the case part 2-1. The storage space of the case has the same configuration as the configuration shown in FIGS. 4 to 6 in which various parts such as a circuit for detecting the water level and a circuit for displaying a warning are assembled in the water level gauge 2 of the second embodiment. The first substrate and the second substrate thus formed are incorporated. Moreover, the 1st sensor thru | or 3rd sensor which comprises the sensor part which detects a water level is incorporated in the storage space inside the extending | stretching part 2-1a. The first sensor, the second sensor, and the third sensor are sensors for detecting the water level based on different principles. For example, the first sensor is an ultrasonic sensor, and the second sensor and the third sensor are electrostatic capacitances. It is a sensor of the type.

The aspect which attaches the water level gauge 2 of 2nd Example to the cover of a waterway is shown in FIG. 11, FIG. FIG. 11 is a perspective view seen from the front obliquely showing the manner of attachment of the water level gauge 2 of the second embodiment, and FIG. 12 is a perspective view seen from obliquely below the front showing the manner of attachment of the water level meter 2 of the second embodiment. FIG.
A water channel (not shown) is formed by a U-shaped groove, and an upper portion where the U-shaped groove is opened is closed by a grating 27 shown in FIGS. The grating 27 is a water channel lid which is a groove lid in which steel materials are assembled in a lattice shape. The extending portion 2-1a of the water level gauge 2 of the second embodiment is inserted into the gap between the gratings 27 in the lattice shape from above. Then, four bolts 28a are respectively inserted into the four mounting holes 2a-2 formed in the lid portion 2-2 of the water level gauge 2 from above, and from the mounting holes 2a-1 on the lower surface of the case portion 2-1. The protruding bolt 28 a is inserted into the gap between the gratings 27 of the grating 27. Then, four abutting plates 28b are respectively inserted into the tip ends of the four bolts 28a protruding from the lower surface of the grating 27, and four nuts 28c are screwed to the bolts 28a. As a result, the water level gauge 2 of the second embodiment is fixed to the grating 27. The plate 28b has a circular shape with an insertion hole for inserting the bolt 28a at the center, but the outer shape may be a rectangle or a polygon as long as the outer shape does not escape from the gap between the lattices.

A state in which the water level gauge 2 of the second embodiment is fixed to the grating 27 is shown in FIGS. 13 is a top view showing a state in which the water level gauge 2 of the second embodiment is attached, FIG. 14 is a bottom view showing a state in which the water level gauge 2 of the second embodiment is attached, and FIG. 15A is the second embodiment. The side view which shows the state which attached the water level gauge 2 of FIG. 15, FIG.15 (b) is the side view which shows the state which attached the water level gauge 2 of 2nd Example by BB sectional drawing, Fig.16 (a) is 2nd. The other side view which shows the state which attached the water level meter 2 of the Example, FIG.15 (b) is another side view which shows the state which attached the water level meter 2 of 2nd Example by CC sectional drawing.
As shown in these figures, in the water level gauge 2 of the second embodiment, the four bolts 28a inserted into the four mounting holes 2a formed in the case pass through the gaps between the lattices of the grating 27. The leading end reaches the bottom of the grating 27. Nuts 28c are screwed to the front ends of the bolts 28a via the contact plates 28b. The extending portion 2-1a in the water level gauge 2 of the second embodiment protrudes downward from the bottom of the grating 27 through a gap between the gratings 27 and is stored in the extending portion 2-1a. The water level of the water channel can be detected by the first sensor to the third sensor.

  Since the water level gauge 2 of the second embodiment is attached by simply inserting it into the grating 27 which is a lid of a water channel such as a water channel and screwing it with the bolt 28a, the contact plate 28b and the nut 28c, as described above. It can be done easily. As described above, the water level gauge 2 of the second embodiment has the same configuration as that of the water level gauge 1 of the first embodiment, and therefore, an inexpensive water level similar to the water level gauge 1 of the first embodiment described above. It can be set as a total, and the same effect can be produced.

<Third embodiment>
The physical structure of the water level gauge 3 of the third embodiment of the present invention is shown in FIGS. FIG. 17 is a perspective view showing the configuration of the water level meter 3 of the third embodiment, FIG. 18 is an exploded view showing the configuration of the water level meter 3 of the third embodiment as seen from the front obliquely above, and FIG. It is the exploded view shown in the perspective view which looked at the structure of the water level indicator 3 of the Example from the front diagonally downward.
The configuration of the water level gauge 3 of the third embodiment will be described below with reference to these drawings. The water level meter 3 according to the third embodiment of the present invention has a rectangular parallelepiped shape in which the height dimension composed of a resin or metal case part 3-1 and a resin lid part 3-2 is smaller than the width dimension. The housing portion 3-3 extends downward from the lower surface of the case. As shown in FIGS. 18 and 19, the case portion 3-1 is formed in a rectangular box shape having an upper surface opened, a side wall portion 3-1 a is formed upward from the periphery of the bottom plate, and is approximately in the center of the bottom plate. A circular insertion hole 3-1e is formed. The upper end of a cylindrical storage part 3-3 having a small diameter is inserted into the insertion hole 3-1e and is fixed by welding or adhesion, and the storage part 3-3 is connected to the case part 3-1. It extends downward from the lower surface. The lid 3-2 is a rectangular flat plate, and is fitted on the upper end of the case 3-1 so as to close the opening on the upper surface of the case 3-1, and is fixed by welding, adhesion, or the like. The The lid 3-2 is preferably made of a light transmissive resin.

  The opening on the upper surface of the case portion 3-1 is closed by the lid portion 3-2, and the inside of the case is a storage space. In this storage space, the first substrate 30a and the second substrate 30b and the solar panel 31 in which components such as a circuit for detecting the water level in the water level meter 3 of the third embodiment and a circuit for displaying a warning are assembled. Built in. Moreover, the 1st sensor 33a, the 2nd sensor 33b, and the 3rd sensor 33c which comprise the sensor part which detects a water level are incorporated in the storage space inside the storage part 3-3. The first sensor 33a, the second sensor 33b, and the third sensor 33c are sensors for detecting the water level on a different principle. For example, the first sensor 33a is an ultrasonic sensor for detecting the water level by ultrasonic waves. The second sensor 33b and the third sensor 33c are capacitive sensors.

  A light emitting unit 32 constituting a warning display unit is provided on one surface of the first substrate 30a at a predetermined height, and lead wires drawn from the light emitting unit 32 made of LEDs or the like are soldered to the first substrate 30a. Has been. In addition, the secondary battery 34 charged by the solar panel 31 is disposed on one surface of the first substrate 30a and predetermined wiring is performed. The secondary battery 34 functions as a power source for the water level gauge 3. The second substrate 30b is connected to the first substrate 30a by a lead wire, and a microcontroller (not shown) is arranged and predetermined wiring is performed. The microcontroller is a control unit that performs overall control of the operation of the water level gauge 3 of the third embodiment. In addition, the lead wire 31a drawn from the solar panel 31 disposed above the second substrate 30a is soldered to the first substrate 30a. The first sensor 33a to the third sensor 33c provided at the tip of the lead wire 33d soldered to the second substrate 30b are received from the fitting insertion hole 3-1e formed at the approximate center of the case portion 3-1. It is inserted and stored in the part 3-3. And when the 1st board | substrate 30a and the 2nd board | substrate 30b are accommodated in a case, the lower surface comes to contact | abut to the boss | hub 3-1d formed in the upper surface of the bottom plate of the case part 3-1.

The aspect which attaches the water level gauge 3 of 3rd Example to the cover of a waterway is shown in FIG. 20, FIG. FIG. 20 is a perspective view seen from the front obliquely showing the attachment mode of the water level gauge 3 of the third embodiment, and FIG. 21 is a perspective view seen obliquely from the front obliquely showing the aspect of attachment of the water level gauge 3 of the third embodiment. FIG.
The water channel is composed of a U-shaped groove (not shown), and the upper surface of the U-shaped groove is closed by a water channel lid 36. As shown in FIGS. 20 and 21, the water channel lid 36 has a horizontally long rectangular shape with a predetermined thickness, and a rectangular cutout 36 a is formed at the approximate center of the short side. A rectangular recess 36b having a rectangular cross section is formed in the substantially central portion of the water channel lid 36, and an insertion hole 36c is formed in the approximate center of the rectangular recess 36b. The rectangular recess 36b is formed to have a size and depth that can accommodate the water level gauge 3 that is substantially the same as the outer shape of the water level gauge 3 of the third embodiment, and the diameter of the insertion hole 36c is outside the storage part 3-3. It is formed in a size that allows insertion of a storage portion 3-3 that is substantially the same in diameter.

The state where the water level gauge 3 of the third embodiment is attached is shown in FIGS. 22 is a perspective view showing a state in which the water level gauge 3 of the third embodiment is attached, FIG. 23 is a perspective view showing the state in which the water level gauge 3 of the third embodiment is attached in a transparent view, and FIG. 24 is a third embodiment. FIG. 24 is a side view showing a state in which the water level gauge 3 of the third embodiment is attached, and FIG. 25 (a) is a diagram in which the water level gauge 3 of the third embodiment is attached. FIG. 25B is a side view showing a state in which the water level gauge 3 of the third embodiment is attached in a DD cross-sectional view.
When the storage portion 3-3 of the water level meter 3 of the third embodiment is inserted into the insertion hole 36c from above, the water level meter 3 of the third embodiment is stored in the rectangular recess 36b as shown in FIGS. Will come to be. And the water level gauge 3 of 3rd Example is fixed to the water channel cover 16 by adhere | attaching the case part 3-1 of the water level gauge 3 to the rectangular recessed part 36b. In a state where the water level gauge 3 of the third embodiment is attached to the rectangular recess 36b, the upper surface of the water channel lid 36 is flat, and the storage portion 3-3 protrudes downward from the lower surface of the water channel lid 36, so that the storage portion 3-3. The water level of the water channel can be detected by the first sensor 33a to the third sensor 33c housed in the water channel.

In the water level meter 3 of the third embodiment, the electrical configuration is the same as that of the water level meter 1 of the first embodiment, and thus the description thereof is omitted.
Since the water level gauge 3 of the third embodiment is attached simply by forming the rectangular recess 36b in the water channel lid 36 of the water channel such as the irrigation channel as described above, and inserting and bonding the rectangular recess 36b, the construction is simplified. Can be done. As described above, since the water level meter 3 of the third embodiment has a simple configuration, it can be an inexpensive water level meter. When the water level in the water channel rises and becomes equal to or higher than the specified water level by the water level meter 3 of the third embodiment, the light emitting unit 32 constituting the warning display unit is turned on, and this light emission is externally transmitted. It will be visible from. That is, in the water channel having the water channel lid 36, even in an environment where the water level of the water channel cannot be visually recognized by the water channel lid 36, the water level of the water channel can be detected. It becomes possible to recognize that the water level is rising.
Further, when the water level gauge 3 of the third embodiment is submerged as the water level rises, the light emitting part 32 emits light, so that it can be visually recognized, and it can be seen that flooding occurs at that point. . Furthermore, since the upper surface of the water channel lid 36 to which the water level gauge 3 of the third embodiment is attached becomes flat, it is possible to eliminate the possibility that a person or a vehicle will collide with the water level gauge 3 of the third embodiment.

<Fourth embodiment>
The physical structure of the water level gauge 4 of the fourth embodiment of the present invention is shown in FIGS. 26 is a perspective view showing the configuration of the water level gauge 4 of the fourth embodiment, FIG. 27 is a front view showing the configuration of the water level gauge 4 of the fourth embodiment, and FIG. 28 shows the configuration of the water level gauge 4 of the fourth embodiment. FIG. 29 is a bottom view showing the configuration of the water level gauge 4 of the fourth embodiment, and FIG. 30 is an exploded view showing the configuration of the water level gauge 4 of the fourth embodiment in a perspective view seen obliquely from above. 31 is an exploded view showing the configuration of the water level gauge 4 of the fourth embodiment in a perspective view as seen from diagonally below the front.
The configuration of the water level gauge 4 of the fourth embodiment will be described below with reference to these drawings. The water level gauge 4 of the fourth embodiment according to the present invention includes a resin or metal case 4-3, a cylindrical part 4-1 having a case base 4-1a at the lower part, and a cylindrical part 4-1. A case formed of a cap 4-2 that covers the upper end of the case is provided, and an extending portion 4-3a extends downward from the lower surface of the case. As shown in FIG. 30 and FIG. 31, the case portion 4-3 includes a substantially circular flat bottom plate, and a cylindrical flange portion 4-3b is formed upward from the periphery of the bottom plate. A cylindrical extending portion 4-3a having a small diameter extending to the center is formed. Moreover, the cylindrical part 4-1 is provided with the cylindrical part with a substantially circular cross section, and the substantially circular case base part 4-1a formed in the lower end of a cylindrical part, from the periphery of the case base part 4-1a. A cylindrical flange 4-1b is formed downward. The case base portion 4-1a is formed in a tapered shape that is inclined downward from the cylindrical portion formed standing at the center portion toward the periphery. Four attachment holes 4a-1 are formed in the tapered portion at intervals of about 90 °, and the attachment holes 4a-1 communicate with the four attachment holes 4a-3 formed in the case portion 4-3. Yes. A solar panel 41 having an arc shape with a predetermined width is fixed to the tapered portion by adhesion. Bonding is performed by double-sided tape or an adhesive. The case base 4-1a in the cylindrical part 4-1 is preferably made of a light-transmitting resin.

  In the case, the cylindrical part 4-1 is arranged on the case part 4-3, and the collar part 4-1b is fitted and fixed by welding, adhesion, or the like so that the collar part 4-3b is inside. The interior of the case is a storage space. As shown in FIGS. 30 and 31, in this storage space, a circuit for detecting a water level, a circuit for displaying a warning, a circuit for detecting an installation position, a circuit for performing communication, etc. in the water level gauge 4 of the fourth embodiment The first board 40a and the second board 40b in which these components are assembled are incorporated. Further, the inside of the extending portion 4-3a is also a storage space, and a first sensor 43a, a second sensor 43b, a third sensor 43c, and a fourth sensor 43d that constitute a sensor unit that detects the water level are incorporated therein. The first sensor 43a, the second sensor 43b, the third sensor 43c, and the fourth sensor 43d are sensors for detecting the water level on a different principle. For example, the first sensor 43a detects the water level by ultrasonic waves. The second sensor 43b is a pressure sensor that detects the water level using water pressure, and the third sensor 43c and the fourth sensor 43d are electrostatic capacitance sensors.

  A secondary battery 44 to be charged by the solar panel 41 is disposed on one surface of the first substrate 40a, and predetermined wiring is performed. The secondary battery 44 functions as a power source for the water level gauge 4. The second substrate 40b is connected to the first substrate 40a with a lead wire, and a microcontroller, a position measuring device, and a communication unit (not shown) are arranged and predetermined wiring is performed. The microcontroller is a control means for comprehensively controlling the operation of the water level gauge 4 of the fourth embodiment. Specifically, the microcontroller acquires information on the water level detected by the sensor unit and the time when the water level is detected. Water level information with time information. Moreover, the position information of the point where the water level gauge 4 is installed is acquired from the position measuring device. The water level information, the time information when the water level is detected, and the position information of the water level meter 4 are sent out from the communication unit to the outside at a predetermined timing. Moreover, the lead wire pulled out from the solar panel 41 is inserted into an insertion hole formed in the case base 4-1a and soldered to the first substrate 40a. The first sensor 43a to the third sensor 43c provided at the tip of the lead wire 43e soldered to the first substrate 40a extend from the storage hole 4-3c formed in the approximate center of the case portion 4-3. 4-3a is inserted and stored. Further, a light emitting unit 42 and a fourth sensor 43d constituting a warning display unit are provided at a predetermined height on one surface of the second substrate 40b, and lead wires drawn from the light emitting unit 42 made of LEDs and the like and The lead wire drawn out from the fourth sensor 43d is soldered to the second substrate 40b. The communication antenna 45a and the positioning antenna 45b are attached to the L-shaped fitting hole 4-1c formed on the upper surface of the cylindrical portion 4-1, and pulled out from the communication antenna 45a and the positioning antenna 45b. The lead wire 45c is soldered to the second substrate 40b. The fitting hole 4-1c is closed by a cap 4-2 fitted on the upper end of the cylindrical portion 4-1. When the first substrate 40a and the second substrate 40b are stored in the case, the lower surfaces thereof come into contact with the two bosses 4-3d formed on the upper surface of the bottom plate of the case portion 4-3.

The aspect which attaches the water level gauge 4 of 4th Example to the cover of a waterway is shown in FIG. 32, FIG. FIG. 32 is a perspective view seen from the front obliquely showing the mounting mode of the water level gauge 4 of the fourth embodiment, and FIG. 33 is a perspective view seen from the obliquely lower front side showing the manner of mounting the water level gauge 4 of the fourth embodiment. FIG.
The water channel is formed by a U-shaped groove (not shown), and the upper portion where the U-shaped groove is opened is closed by a water channel lid 47. As shown in FIGS. 32 and 33, the water channel lid 47 is formed in a rectangular shape having a horizontally long predetermined thickness, and a rectangular cutout 47a is formed at substantially the center of the short side. An insertion hole 47b having a circular cross section is formed at substantially the center portion of the water channel lid 47, and four through holes 47c are formed at intervals of about 90 ° so as to surround the insertion hole 47b with the insertion hole 47b as the center. The insertion hole 47b is formed to have a diameter through which the extension part 4-3a substantially the same as the outer diameter of the extension part 4-3a of the water level gauge 4 of the fourth embodiment can be inserted, and the through hole 47c has four attachment holes 4a. -1, the same interval and position as the position of the mounting hole 4a-3.

  To attach the water level gauge 4 of the fourth embodiment to the water channel lid 47, four bolts 48a are respectively inserted into the four mounting holes 4a-3 formed in the case base 4-1a of the water level gauge 4 of the fourth embodiment. Insert from above. The four bolts 48a pass through the mounting holes 4a-3 formed in the case part 4-3, and the lower part of the bolts 48a protrudes downward from the lower surface of the case part 4-3. Next, when the extending portion 4-3a of the water level gauge 4 of the fourth embodiment is inserted from above into the insertion hole 47b formed in the water channel lid 47, the lower portions of the four bolts 48a are formed in the water channel lid 47. Each of the bolts 48 a is inserted into the through hole 47 c, passes through the through hole 47 c of the water channel lid 47, and protrudes downward from the lower surface of the water channel lid 47. Four abutting plates 48b are respectively inserted into the tip portions of the four bolts 48a protruding from the lower surface of the water channel lid 47, and four nuts 48c are screwed to the bolts 48a, respectively. Thereby, the water level gauge 4 of the fourth embodiment is fixed to the water channel lid 47. The plate 48b has a circular shape with an insertion hole for inserting the bolt 48a in the center, but the outer shape may be a rectangle or a polygon.

A state in which the water level gauge 4 of the fourth embodiment is attached is shown in FIGS. 34 is a perspective view showing a state in which the water level gauge 4 of the fourth embodiment is attached, FIG. 35 is a top view showing a state in which the water level gauge 4 of the fourth embodiment is attached, and FIG. 36 is a water level gauge of the fourth embodiment. It is a side view showing the state where 4 was attached.
As shown in these drawings, in a state where the water level gauge 4 of the fourth embodiment is attached to the water channel lid 47, the extending portion 4-3a protrudes downward from the lower surface of the water channel lid 47 and is stored in the extending portion 4-3a. The water level in the water channel can be detected by the first sensor 43a to the fourth sensor 43d. In addition, since the communication antenna 45a and the positioning antenna 45b are arranged on the upper portion of the cylindrical portion 4-1, the communication antenna 45a and the positioning antenna 45b operate efficiently. Thus, in the water level meter 4 of the fourth embodiment, in the water channel having the water channel lid 47, the water level of the water channel can be detected even in an environment where the water level of the water channel cannot be visually recognized by the water channel lid 47. It is possible to recognize that the water level is rising by performing warning light emission by the light emitting unit 42 at the time of rising. Further, when the water level gauge 4 of the fourth embodiment is submerged as the water level rises, the light emitting unit 42 emits light, so that it can be visually recognized, and it is understood that submergence occurs at that point. . Furthermore, it is possible to reduce the risk of a person or vehicle colliding with the water level gauge 4 of the fourth embodiment that emits light.

A functional block diagram showing the electrical configuration of the water level gauge 4 of the fourth embodiment of the present invention is shown in FIG.
The water level meter 4 of the fourth embodiment shown in FIG. 37 includes a microcontroller 210, a sensor unit 211, a positioning device 212, a warning display unit 213, a communication network communication I / F 214, and a wide area network communication I / F 215. These are connected by a bus. In addition, a power supply unit 216 that supplies power to each unit is provided. The microcontroller 210 is a control means that performs overall control of the operation of the water level gauge 4 of the fourth embodiment, and the position positioning device 212 measures the installation position of the water level gauge 4 using GPS (Global Positioning System) or the like. And has the function of a time information acquisition device. Specifically, the microcontroller 210 takes in the water level information detected by the sensor unit 211 and the time at which the water level was detected from the time information acquisition device, and writes the water level information with the time information to the internal temporary memory. Further, the position information of the point where the water level gauge 4 of the fourth embodiment is installed is acquired from the position measuring device 212 and written in the temporary memory. In this case, the position information of the water level gauge 4 of the fourth embodiment is the position information measured by the position positioning device 212 or the position information input directly. The water level information written in the temporary memory, the time information when the water level is detected, and the position information of the water level meter 4 of the fourth embodiment are externally transmitted from the communication network communication I / F 214 or the wide area communication network communication I / F 215 at a predetermined timing. Sent to. Moreover, when the submergence occurs at the installation position of the water level gauge 4 of the fourth embodiment and the water level is equal to or higher than the specified water level, the warning display unit 213 is turned on to notify that the submergence has occurred. The light from the light emitting unit of the warning display unit 213 is irradiated on the water surface to illuminate the vicinity of the water surface boundary, and the visibility of the water surface can be improved. Moreover, the light of the light emission part of the warning display part 213 is irradiated to the exterior from the inside of the water level meter 4 of 4th Example, and the visibility from a distant place and the visibility of the water level meter 4 of 4th Example are improved. Is possible.

<Application example>
FIG. 38 shows a functional block diagram showing a configuration of a warning system 300 to which the water level gauge 4 of the fourth embodiment of the present invention can be applied. This warning system 300 has at least a function of displaying a warning at a point where the submergence is detected and a point where there is a risk of being submerged, and a function of creating a disaster prevention map in which an area related to submergence is displayed. Yes.
The warning system 300 illustrated in FIG. 38 includes an information processing device 301 and a plurality of closed communication networks 350-1 to 350-k, and includes an information processing device 301 and a plurality of closed communication networks 350-1 to 350-k. They are connected by a wide area communication network 310 including an Internet communication network and a public communication network.
The closed communication networks 350-1 to 350-k are installed for each predetermined area. In the illustrated example, k closed communication networks are installed. A disaster prevention map can be created for each predetermined area, and a disaster prevention map that covers a plurality of predetermined areas can be created by connecting the disaster prevention maps of a plurality of areas. The closed communication network is a communication network that uses a dedicated communication line, and is a communication network that can prevent the possibility of data being intercepted or tampered with.

  The closed communication network 350-1 includes a master unit 320-1, and includes 330 units 1-330-n water level meters A and m units 331-1 to 331-m installed in a predetermined area. Of the water level meter B belongs to the closed communication network 350-1. Base unit 320-1 is connected to n water level meters A and m water level meters B belonging to closed area communication network 350-1 by wireless closed area communication. The water level meter A and the water level meter B have the same configuration, and the water level meter 4 of the fourth embodiment of the present invention can be applied to the water level meter A or the water level meter B. In this case, the communication network communication I / F corresponds to a closed communication network. While the water level meter A and the water level meter B are turned on, the water level meter A and the water level meter B detect the water level at the point where the sensor unit is installed and acquire the position information of the point where the position measuring device is installed. . And the information of the detected water level, the time information which acquired the water level, and the positional information of the installed point are transmitted to the parent device to which the own device belongs. In this case, the information is put in a packet and transmitted asynchronously, and at least a MAC (Media Access Control address) address is added to the packet. Since the MAC address is a unique physical address, it can be used as identification information (ID) of each water level meter A and each water level meter B, but a unique ID is given to each water level meter A and each water level meter B. It may be. Further, when the sensor unit detects a significant water level, a warning display unit comprising a light emitting unit emits light and displays a warning that the water has been submerged at the place where it is installed. The significant water level can be a water level above a specified water level where there is a high risk of flooding. In this case, the light from the light emitting unit of the warning display unit can be applied to the water surface to illuminate the vicinity of the boundary of the water surface, and the visibility of the water surface can be improved. Moreover, when the light of the light emitting part of the warning display part is irradiated from the inside of the water level meter A or the water level meter B to the outside, the visibility from a distance and the visibility of the water level meter A or the water level meter B may be improved. It becomes possible.

The above description is for the closed communication network 350-1, but the same applies to the closed communication networks 350-2 to 350-k, and therefore the description of the closed communication networks 350-2 to 350-k is omitted. .
Here, the water level gauge A and the water level gauge B will be described. The water level meter A and the water level meter B have the same configuration, but the state of the installation point is different. Specifically, even if flooding occurs when the water level gauge A is installed at or above the specified water level, flooding does not occur immediately at the spot where the water level gauge B is installed. However, when the water level rises further at the point where the water level gauge A is installed, the risk of flooding at the point where the water level gauge B is installed increases. Therefore, when the water level gauge A is at or above the specified water level at the point where the water level gauge A is installed, a warning display unit consisting of the light emitting part of the water level gauge B is caused to emit light and a warning is displayed indicating that there is a risk of flooding. Such an operation is performed as follows. From the water level gauge A, the detected water level information and the time information at which the water level is acquired are transmitted to the parent device every predetermined time, and the parent device transmits the received water level information and the time information at which the water level is acquired to the information processing device 301 in a wide area. The data is transmitted via the communication network 310. The information processing device 301 detects that the water level of the received water level meter A is equal to or higher than the specified water level, and determines the water level meter B belonging to the closed communication network to which the water level meter A whose water level is equal to or higher than the specified water level belongs. To detect. In this case, the information processing device 301 stores the detected water level information and the time information obtained from the water level meter A and the water level meter B, and the position information of the installed point in the database. However, each information is stored in association with IDs such as the MAC addresses of the water level gauge A and the water level gauge B. Therefore, the information processing apparatus 301 detects the water level meter B belonging to the closed communication network to which the water level meter A that has become the specified water level or higher by searching the database. Then, the warning display instruction information is transmitted to the master unit to which the detected water level gauge B belongs. The parent device that has received the warning display instruction information transmits the warning display instruction information to the water level gauge B belonging to the own device. The water level gauge B that has received the warning display instruction information causes the warning display unit including the light emitting unit of the own device to emit light based on the warning display instruction information. Thereby, a warning display can be made in advance by the water level gauge B that there is a risk of flooding.

An example of the installation points of the water level gauge A and the water level gauge B is shown in FIG. In the example shown in FIG. 39, the water level gauge A is installed on the riverbed between the river R and the main bank H, the base unit T is installed on the main bank H, and the water level gauge B is installed on the main bank H and the main bank H It is installed between any one of the levee, the surrounding levee and the Wanaka levee. When the water level of the river R rises due to heavy rain and the water overflows to the riverbed, flooding occurs at the installation point of the water level gauge A. However, no flooding occurred at the location where the water level gauge B was installed. When the water level of the river R further rises and the water exceeds the main bank H, submergence also occurs at the installation point of the water level gauge B. In the water level gauge B, the warning display unit emits light when flooding occurs at the installation point of the water level gauge A, so that the warning display of the flooding can be performed in advance.
In addition, the information processing apparatus 301 can detect the flooded point from the information stored in the database, and can create a disaster prevention map based on this.
The installation point of the water level gauge A and the water level gauge B is not limited to the position shown in FIG. 39, and the water level gauge installed at a point where the altitude is low and easily flooded is the water level gauge A, and the elevation is higher than the installation point of the water level gauge A The water level meter installed at the point may be a water level meter B.

  The water level meter according to the embodiment of the present invention described above can be attached to the water channel lid that closes the opening on the upper surface of the water channel by a simple mounting operation, and the water level meter of the embodiment of the present invention has a simple structure. Therefore, it is possible to make an inexpensive water level meter, and it is possible to reduce the cost of dealing with inland water flooding that requires a large number of installations and flooding of outside water such as in a dike. In the water level meter according to the embodiment of the present invention, a case in which a substrate on which various parts such as a circuit for detecting a water level and a circuit for displaying a warning are stored is stored in a case portion and an opening on the upper surface of the case portion. In the water level gauge 4 of the fourth embodiment, the opening of the upper surface of the case portion is closed by the case base portion of the cylindrical portion, and the cylindrical portion corresponds to the lid portion. Further, in the water level meter according to the embodiment of the present invention, when the sensor unit detects that the height of the specified water level or more is detected, the light emitting unit constituting the warning display unit is turned on to display the warning. However, if a significant water level is defined as a water level that is higher than the specified water level where there is a high risk of flooding, the light-emitting unit that constitutes the warning display unit is detected when the sensor unit detects a significant water level. It can be said that a warning is displayed by emitting light.

DESCRIPTION OF SYMBOLS 1 Water level gauge, 1-1 Case part, 1-1a Extension part, 1-1b collar part, 1-1c accommodation hole, 1-1d boss | hub, 1-2 lid part, 1-2a Display window, 1-2b insertion hole 1-2c collar part, 2 water level gauge, 2-1 case part, 2-1a extension part, 2-2 lid part, 2-2a display window, 2a-1 mounting hole, 2a-2 mounting hole, 3 water level gauge 3-1 Case part, 3-1a Side wall part, 3-1d boss, 3-1e Insertion hole, 3-2 Lid part, 3-3 Storage part, 4 Water level gauge, 4 Case base part, 4-1 Cylindrical shape Part, 4-1b collar part, 4-1c fitting hole, 4a-1 mounting hole, 4-2 cap, 4-3 case part, 4-3a extension part, 4-3b collar part, 4-3c storage hole, 4-3d boss, 4a-3 mounting hole, 10a first substrate, 10b second substrate, 11 solar panel, 11a lead wire, 12 shots Part, 13a 1st sensor, 13b sensor, 13c sensor, 13d lead wire, 14 secondary battery, 15 U-shaped groove, 16 water channel cover, 16a notch part, 16b groove part, 21 solar panel, 27 grating, 28a bolt, 28b Plate, 28c Nut, 30a First board, 30b Second board, 31 Solar panel, 31a Lead wire, 32 Light emitting part, 33a First sensor, 33b Second sensor, 33c Third sensor, 33d Lead wire, 34 Secondary battery , 36 water channel lid, 36a notch, 36b rectangular recess, 36c insertion hole, 40a first substrate, 40b second substrate, 41 solar panel, 42 light emitting unit, 43a first sensor, 43b second sensor, 43c third sensor, 43d Fourth sensor, 43e Lead wire, 44 Secondary battery, 45a Communication antenna , 45b Positioning antenna, 45c Lead wire, 47 Water channel lid, 47a Notch, 47b Insertion hole, 47c Through hole, 48a Bolt, 48b Plate, 48c Nut, 150 Microcontroller, 151 Sensor part, 153 Warning display part, 156 Power supply unit, 210 Microcontroller, 211 Sensor unit, 212 Positioning device, 213 Warning display unit, 214 Communication network communication I / F, 215 Wide area network communication I / F, 216 Power supply unit, 300 warning system, 301 Information processing device , 310 Wide area communication network, 320 Master unit, 350 Closed communication network, A water level meter, B water level meter, H main dike, K dike, R river, T main unit

The present invention relates to a water level meter and a communication system that are easily installed.

With a conventional water level meter using a laser distance meter, it is difficult to easily install the water level meter in the water channel because of its structure, and an expensive laser distance meter, a quenching tube, etc. are required, resulting in a low installation cost. There was a problem of being covered.
Therefore, an object of the present invention is to provide a water level meter and a communication system that can be attached to a lid of a water channel, can be easily mounted, and can be inexpensive.

The water level meter of the present invention comprises a case portion having a flat bottom surface, a lid portion that closes the opening surface of the case portion, and an extending portion that extends downward from the bottom surface, and the inside is a storage space. A case and a water level sensor housed in the extension portion of the case, a detection means for detecting the water level based on a signal from the water level sensor, and when a significant water level is detected by the detection means The warning display section that emits light and the power supply section are stored at least in the storage space of the case, and the shape of the extending section can be inserted into a hole that penetrates the lid formed on the lid of the water channel The main feature is that the case is fixed around the hole.
A communication system according to the present invention includes a plurality of closed communication networks and an information processing apparatus connected to the closed communication network through the communication network, and each of the closed communication networks belongs to a parent device and the parent device. A plurality of water level gauges according to claim 8, wherein each water level gauge is a parent to which the own aircraft belongs the detected water level information, the time information at which the water level was acquired, and the position information of the installed point. The master unit sends the received water level information and the time information at which the water level was acquired to the information processing device, and the information processing device is most capable of creating a disaster prevention map based on the received information. Main features.

The water level meter of the present invention comprises a case portion having a flat bottom surface, a lid portion that closes the opening surface of the case portion, and an extending portion that extends downward from the bottom surface. And a water level sensor housed inside the extending portion of the case, and the shape of the extending portion is a shape that can be inserted into a hole that penetrates the lid formed in the lid of the water channel. The main body is fixed around the hole. As a result, the water level gauge of the present application can be attached to the lid of the water channel by inserting the extending portion into the hole formed in the lid of the water channel and fixing the case body around the hole by bonding or the like. It can be fixed. Therefore, the water level gauge of the present invention can be easily attached to the lid of the water channel and can be made inexpensive.
The communication system according to the present invention has at least a function of displaying a warning at a point where it has been submerged by detecting that it has been submerged and a point at which there is a risk of submergence, and a function of creating a disaster prevention map in which areas related to submergence are displayed. ing.

Claims (7)

A case portion having a lower surface made flat, a lid portion that closes the opening surface of the case portion, and an extending portion that extends downward from the lower surface;
A water level sensor housed inside the extending portion of the case,
A detection means for detecting a water level based on a signal from the water level sensor, a warning display section that emits light when a significant water level is detected by the detection means, and a power supply section are provided at least in the housing space of the case. The water level is characterized in that it is housed, and the shape of the extending portion is a shape that can be inserted into a hole that penetrates the lid formed in the lid of the water channel, and the case is fixed around the hole. Total.   The hole portion formed in the lid of the water channel is configured by a groove portion formed in the lid in advance formed between adjacent lids, and the lower surface of the case portion is bonded to the periphery of the hole portion. The water level meter according to claim 1, wherein the water level meter is fixed.   2. The case according to claim 1, wherein the lid of the water channel is greeted, the hole of the greeting is the hole, and the case is fixed to the hole of the greeting by screw means inserted through the case. Water level gauge.   The case is accommodated and fixed in a concave portion that can accommodate the entire case formed in the lid of the water channel, and the hole portion is an insertion hole formed in the bottom surface of the concave portion. The water level meter according to claim 1. The lid portion includes a case base portion that closes an opening surface of the case portion, and is configured by a cylindrical portion in which an interior extending upward is used as a storage space.
In the housing space of the case, a detection means for detecting a water level based on a signal from the water level sensor, a warning display unit that emits light when a significant water level is detected by the detection means, A communication unit that sends out water level information to the outside when a water level is detected, a position measurement unit that detects an installation position, and a power supply unit are housed, and the communication unit and The water level meter according to claim 1, wherein an antenna of the position measurement unit is accommodated.   The hole is an insertion hole formed in the lid of the water channel, and the case is fixed to the lid of the water channel by screw means inserted into the case through a through hole formed around the insertion hole. The water level meter according to claim 5.   The water level sensor according to any one of claims 1 to 6, wherein the water level sensor is a combination of a plurality of types of water level sensors having different principles for detecting the water level.

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