JP6845607B2 - Water level gauge and communication system - Google Patents

Description

The present invention relates to a water level gauge and a communication system that detect the water level in a non-contact manner.

The conventional water level gauge described in Patent Document 1 is composed of a water level scale bar and a ring float. The ring float is made of a buoyant foam material made of styrofoam or the like, has a donut shape with a cavity in the center thereof, and floats on the surface of the water. Further, the water level scale bar is made of a material such as plastic, penetrates into a cavity in the ring float, and is installed at a predetermined position. A plurality of IC tags are attached to the inside of the water level scale bar at appropriate intervals in the height direction. When measuring the water level, the height position of the ring float floating on the water surface moves up and down, and the IC tag sensing unit of the ring float receives the identification code from the IC tag according to the height. The water level gauge side information received by the IC tag sensing unit is wirelessly transmitted to the position data analysis unit away from the installation location of the water level gauge. Here, the identification code of the corresponding IC tag is recognized from the received information, and the water level is calculated based on this identification code.

JP-A-2007-139430

The conventional water level gauge has a problem that it is necessary to use an IC tag as a means for detecting the water level without contact.
Therefore, an object of the present invention is to provide a water level gauge capable of detecting a water level in a non-contact manner without using an IC tag. Another object of the present invention is to provide a water level gauge and a communication system having a function of notifying when the detected water level rises.

The water level gauge of the present invention is a water level gauge that can be installed on the ground including a road, and water is installed on the ground and has a height corresponding to the water level at the installation position by being fitted into the pillar. It is composed of a float part having at least a light emitting part and a sensor means for detecting the height inside, and the water level is detected by the sensor means based on the height of the float part, and a defined water level is defined. When the above water level is detected, the light emitting portion is made to emit light to notify that submergence has occurred at the installation position, and a plurality of ring-shaped rings having a predetermined width from the lower end to the upper end of the peripheral surface of the support column. The sensor means is provided with conductor portions at predetermined intervals, and the sensor means is composed of a plurality of sensor conductors arranged at predetermined intervals in the height direction for detecting that the sensor means faces the plurality of conductor portions. The most important feature is to detect the water level by the combination of the plurality of sensor conductors that have detected that they face each other.
The communication system of the present invention includes a plurality of closed communication networks and an information processing device connected to the closed communication network by a communication network, and each of the closed communication networks belongs to a master unit and the master unit. Each water level gauge is provided with a plurality of water level gauges according to the present invention, and each water level gauge belongs to its own unit by means of communication with the detected water level information, the time information at which the water level is acquired, and the position information of the installed point. It is transmitted to the master unit, and the master unit sends the received water level information and the time information at which the water level is acquired to the information processing device, and the information processing device sends the received water level information, the position information, and the time information. The most important feature is that it is possible to create a disaster prevention map that displays at least the flooded area based on the above.

The water level gauge of the present invention is a water level gauge having a simple structure capable of detecting the water level in a non-contact manner by floating the float portion. When a specified water level or higher is detected, the light emitting unit is made to emit light, and it is possible to notify that the water level has reached the specified water level or higher. Therefore, it is possible to obtain a water level gauge having excellent visibility at night or when the visibility is poor. Further, the water level gauge can be measured by inserting the float portion into the existing columnar column, which makes it easy to install and reduces the installation cost. Since the water level gauge of the present invention has a simple structure, it is possible to use an inexpensive water level gauge, and to cope with inland water inundation that requires a large number of installations and external water inundation such as in a haze embankment. It is possible to reduce the cost. Further, the water level gauge of the present invention can be easily installed on a road, a revetment, or the like, and the installation cost can be reduced.
As a pole to which the water level gauge of the present invention is attached, a utility pole, a street light, or the like can be used, and since it can be installed in a place where flooding is likely to occur, it can be installed in a place where flooding may occur. It can be placed and can be linked in real time with a disaster prevention map that displays the flooded area.
The communication system of the present invention has at least a function of detecting flooding and displaying a warning at a flooded point and a point where there is a risk of flooding, and a function of creating a disaster prevention map displaying areas related to flooding. ing.

It is a functional block diagram which shows the structure of the water level gauge of 1st Example of this invention. It is a perspective view which shows the structure of the water level gauge of 1st Example of this invention. It is a front view which shows the structure of the water level gauge of 1st Example of this invention. It is a bottom view which shows the structure of the water level gauge of 1st Example of this invention. It is an assembly drawing which shows the structure of the water level gauge of 1st Example of this invention by the perspective view. It is another assembly drawing which shows the structure of the water level gauge of 1st Example of this invention by the perspective view seen from the front diagonally above and the perspective view seen from the front diagonally below. It is still another assembly drawing which shows the structure of the water level gauge of 1st Example of this invention by the perspective view. It is still another assembly drawing which shows the structure of the water level gauge of 1st Example of this invention by the perspective view. It is still another assembly drawing which shows the structure of the water level gauge of 1st Example of this invention by the perspective view. It is an assembly drawing which shows the structure of the float case in the water level gauge of 1st Example of this invention by the perspective view. It is another assembly drawing which shows the structure of the float case in the water level gauge of 1st Example of this invention by the perspective view. It is still another assembly drawing which shows the structure of the float case in the water level gauge of 1st Example of this invention by the perspective view. It is still another assembly drawing which shows the structure of the float case in the water level gauge of 1st Example of this invention by the perspective view. It is an assembly drawing which shows the structure of the float part in the water level gauge of 1st Example of this invention by the perspective view. It is a figure which shows the schematic structure of the sensor part of the water level gauge of 1st Example of this invention. It is a figure which shows the principle of detecting the water level by the sensor part of the water level gauge of 1st Example of this invention. It is a front view which shows the structure of the sensor of the water level gauge of 1st Example of this invention. It is a front view which shows the operation which the sensor part of the water level gauge of 1st Example of this invention detects a water level. It is a front view which shows the other operation which the sensor part of the water level gauge of 1st Example of this invention detects a water level. It is a perspective view which shows the structure of the water level gauge of 2nd Example of this invention. It is an assembly drawing which shows the structure of the water level gauge of 2nd Example of this invention by the perspective view. It is another assembly drawing which shows the structure of the water level gauge of 2nd Example of this invention by the perspective view. It is an assembly drawing which shows the structure of the float base of the water level gauge of 2nd Example of this invention by the perspective view. It is still another assembly drawing which shows the structure of the water level gauge of 2nd Example of this invention by the perspective view. It is still another assembly drawing which shows the structure of the water level gauge of 2nd Example of this invention by the perspective view. It is another assembly drawing which shows the structure of the unit cover of the water level gauge of 2nd Embodiment of this invention by the perspective view. It is another assembly drawing which shows the structure of the unit case of the water level gauge of 2nd Embodiment of this invention by the perspective view. It is another assembly drawing which shows the structure of the unit cover of the water level gauge of 2nd Embodiment of this invention by the perspective view seen from the front diagonally above and the perspective view seen from the front diagonally below. It is a front view which shows the principle that the sensor of the water level gauge of 2nd Example of this invention detects a water level. It is a figure which shows the principle of detecting the water level by the sensor of the water level gauge of the 2nd Example of this invention. It is a top view which shows the structure of the water level gauge of the 3rd Example of this invention. It is a front view which shows the structure of the water level gauge of 3rd Example of this invention. It is a perspective view which shows the structure of the water level gauge of 3rd Example of this invention. It is a perspective view which shows the structure of the column of the water level gauge of the 3rd Example of this invention. It is a perspective view which shows the structure of the lead guide part of the water level gauge of the 3rd Example of this invention. It is an assembly drawing which shows the structure of the lead guide part of the water level gauge of the 3rd Example of this invention by the perspective view. It is an assembly drawing which shows the structure of the water level gauge of 3rd Example of this invention by the perspective view. It is another assembly drawing which shows the structure of the water level gauge of 3rd Example of this invention by the perspective view. It is an assembly drawing which shows the structure of the float part of the water level gauge of the 3rd Example of this invention by the perspective view. It is an assembly drawing which shows the structure of the unit cover of the water level gauge of the 3rd Example of this invention in the perspective view seen from the front diagonally lower side. It is an assembly drawing which shows the structure of the unit cover of the water level gauge of 3rd Embodiment of this invention in the perspective view seen from the front obliquely above. It is an assembly drawing which shows the structure of the circuit board of the water level gauge of the 3rd Example of this invention in the perspective view seen from the front diagonally lower side. It is an assembly drawing which shows the structure of the circuit board of the water level gauge of the 3rd Example of this invention in the perspective view seen from the front diagonally above. It is a top view, a front view, and a side view which show the structure of the water level gauge of 4th Example of this invention. It is a perspective view which shows the structure of the water level gauge of 4th Example of this invention. It is a perspective view which shows the assembly drawing of the water level gauge of 4th Example of this invention. It is a perspective view seen from the front diagonally upper view and the perspective view seen from the front diagonally lower side which shows the structure of the float part of the water level gauge of 4th Example of this invention. It is an assembly drawing which shows the structure of the float part of the water level gauge of 4th Example of this invention by the perspective view. It is another assembly drawing which shows the structure of the float part of the water level gauge of 4th Example of this invention by the perspective view. It is an assembly drawing which shows the structure of the float case of the water level gauge of 4th Example of this invention by the perspective view. It is an assembly drawing which shows the structure of the circuit board of the water level gauge of 4th Example of this invention by the perspective view. It is another assembly drawing which shows the structure of the circuit board of the water level gauge of 4th Embodiment of this invention by the perspective view. It is a functional block diagram which shows the structure of the water level gauge of 5th Example of this invention. It is a perspective view which shows the structure of the water level gauge of 5th Example of this invention. It is a perspective view which shows the structure of the float part of the water level gauge of the 5th Example of this invention. It is a perspective view seen from the front diagonally upper view and the perspective view seen from the front diagonally lower side which shows the structure of the float part of the water level gauge of 5th Example of this invention. It is an assembly drawing which shows the structure of the float unit of the water level gauge of 5th Embodiment of this invention by the perspective view seen from the front diagonally above and the perspective view seen from the front diagonally below. It is an assembly drawing which shows the structure of the circuit board of the water level gauge of 5th Embodiment of this invention by the perspective view. It is a functional block diagram which shows the structure of the warning system which is an application example of the water level gauge of the Example of this invention. It is a figure which shows the other application example of the water level gauge of the Example of this invention.

The water level gauge according to the embodiment of the present invention includes at least a water level detecting means for detecting the water level, a positioning means for detecting the installed position, information on the water level detected by the water level detecting means, and a positioning means at the time of detection. It is provided with a communication means for adding and transmitting the position information of the position detected in. Further, the water level gauge according to the embodiment of the present invention may be provided with a warning display unit including a light emitting unit to display a warning when the water level detected by the water level detecting means exceeds the specified water level. ..
In explaining the water level gauge according to the embodiment of the present invention, it is generally called "flooding" that a house or the like is submerged in water, and "flooding" that a field or a road is submerged 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, they are referred to as "flooding" unless otherwise specified. ..

<First Example>
FIG. 1 shows a functional block diagram showing an electrical configuration of the water level gauge 1 according to the first embodiment of the present invention.
The water level gauge 1 of the first embodiment shown in FIG. 1 includes a microcontroller 110, a sensor unit 111, a positioning device 112, a warning display unit 113, a communication network communication I / F 114, and a wide area communication network communication I / F 115. These are connected by a bus. It also includes a power supply unit 116 that supplies power to each unit. The power supply unit 116 includes a power supply Vcc composed of a battery and a power supply switch SW composed of a reed switch. The microcontroller 110 is a control means that comprehensively controls the operation of the water level gauge 1, and the positioning device 112 positions the installation position of the water level gauge 1 using GPS (Global Positioning System) or the like, and time information. It has the function of an acquisition device. Specifically, the microcontroller 110 takes in the water level information detected by the sensor unit 111 and the time when the water level is detected from the time information acquisition device, and writes the water level information with the time information into the internal temporary memory. Further, the position information of the point where the water level gauge 1 is installed is acquired from the positioning device 112 and written to the temporary memory. In this case, the position information of the water level gauge 1 is the position information measured by the position positioning device 112 or the position information directly input. Further, the SW of the power supply unit 116 is automatically turned on when the water level at the installation position of the water level gauge 1 becomes a significant water level or higher, and the water level gauge 1 is initialized. After the initialization, the water level gauge 1 starts an operation such as detecting the water level.

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 gauge 1 are transmitted from the communication network communication I / F 114 or the wide area communication network communication I / F 115 to the information processing device at a predetermined timing. To. The information processing device has at least the function of creating a disaster prevention map that displays the flooded area. Further, when a flood occurs at the installation position of the water level gauge 1 and the water level exceeds the specified level, the warning display unit 113 is turned on to notify that the flood has occurred. The light from the light emitting unit of the warning display unit 113 can be applied to the water surface to illuminate the vicinity of the water surface boundary, and the visibility of the water surface can be improved. Further, the light of the light emitting unit of the warning display unit 113 is irradiated from the inside of the water level gauge 1 to the outside, and it is possible to improve the visibility from a distance and the visibility of the water level gauge 1.

Next, the physical configuration of the water level gauge 1 according to the first embodiment of the present invention is shown in FIGS. 2 to 14. FIG. 2 is a perspective view showing the configuration of the water level gauge 1 of the first embodiment, FIG. 3 is a front view showing the configuration of the water level gauge 1 of the first embodiment, and FIG. 4 is a configuration of the water level gauge 1 of the first embodiment. The bottom view is shown, FIG. 5 is another assembly drawing showing the configuration of the first embodiment in a perspective view, and FIG. 6A is a perspective view showing the configuration of the water level gauge of the first embodiment as viewed from diagonally above the front. 6 (b) is another assembly drawing showing the configuration of the water level gauge 1 of the first embodiment as a perspective view seen from diagonally above the front, and FIG. 7 shows the configuration of the water level gauge 1 of the first embodiment. Still another assembly drawing shown in a perspective view, FIG. 8 is a further assembly drawing showing the configuration of the water level gauge 1 of the first embodiment in a perspective view, and FIG. 9 is a perspective view of the configuration of the water level gauge 1 of the first embodiment. 10 (a) is an assembly drawing showing the configuration of the float case in the water level gauge 1 of the first embodiment as a perspective view seen from diagonally above the front, and FIG. 10 (b) is the first embodiment. An assembly drawing showing the configuration of the float case in the water level gauge 1 of the example in a perspective view seen from diagonally below the front, FIG. 11 is another assembly drawing showing the configuration of the float case in the water level gauge 1 of the first embodiment in a perspective view. FIG. 12 is a perspective view showing the configuration of the float case in the water level gauge 1 of the first embodiment, and FIG. 13 is a perspective view showing the configuration of the float case in the water level gauge 1 of the first embodiment. FIG. 14 is still another assembly drawing showing the configuration of the float case in the water level gauge 1 of the first embodiment as a perspective view.

By explaining the assembly of the water level gauge 1 of the first embodiment with reference to these figures, the configuration of the water level gauge 1 will be described below. The water level gauge 1 of the first embodiment according to the present invention includes a cylindrical vertically elongated resin support column 10, a resin or metal support column base portion 12 attached to the lower end of the support column 10, and a support column. It is composed of a float portion 13 inserted through the 10. As shown in FIG. 5, a cylindrical vertically elongated resin-made tubular base portion 15 having an outer diameter slightly smaller than the inner diameter of the column 10 is fitted into the column 10, and the tubular base portion 15 A metal ring-shaped conductor portion 15 is provided in three steps from the lower end of the outer peripheral surface by sticking, adhesion, or the like. The three-stage ring-shaped conductor portion 15 has a narrow ring-shaped first metal conductor portion 15a provided at the lower end of the outer peripheral surface of the tubular base portion 15 and a predetermined interval above the first conductor portion 15a made of metal. A ring-shaped second conductor portion 15b made of metal having a width wider than that of the first conductor portion 15a provided therein, and a ring-shaped thick ring-shaped portion provided on the second conductor portion 15b having a width slightly below the upper end at a predetermined interval. It is composed of a metal third conductor portion 15c. The sensor unit 111 is of the capacitance type, and the ring-shaped conductor unit 15 constitutes one of the sensor units 111. The other component of the sensor unit 111 will be described later. A resin cap 11 is fitted to the upper end of the tubular base portion 15 and fixed by welding, adhesion, or the like. The cap 11 has a ring-shaped cap collar portion 11a, and the upper surface and the lower surface are open.

Further, the support column base portion 12 is provided with a disk-shaped bottom portion as shown in FIGS. 6A and 6B, and an arcuate wall having a tapered cross section on the outer peripheral edge of the upper surface of the bottom portion. Part 12d is formed. Further, the support column base portion 12 is made of a material having a specific gravity higher than that of water, and does not float on water. Four arc-shaped wall portions 12d are formed along the outer circumference of the upper surface of the support column base portion 12, and drain holes 12a are formed between the four arc-shaped wall portions 12d. An insertion portion 12b composed of a cylindrical quadruple ring portion is formed at substantially the center of the support column base portion 12, and the height of the outermost ring portion is formed lower than that of the other ring portions. .. A cylindrical groove portion 12c is formed between adjacent ring portions in the insertion portion 12b, and as shown in the figure, a resin internal support 16 is formed in the cylindrical groove portion 12c formed by the innermost ring portion and the outer ring portion thereof. The lower part of the is inserted and fixed by welding or adhesion. The inner support column 16 has a substantially cylindrical shape, and six folded portions 16a are formed along the central axis at equal intervals, and a gap 16b is formed by the folded portions 16a. The internal strut 16 is arranged inside the strut 10 for the purpose of bending when a load is applied to the strut 10 from the lateral direction and restoring the original shape. Further, a cross-shaped drainage channel 12e is formed on the lower surface of the support column base portion 12, and a drainage hole is formed in the center of the cross-shaped drainage channel 12e. Therefore, the rainwater that has entered the inside from the upper part of the support column 10 is discharged to the outside through the drain hole and the drainage channel 12e, so that it does not interfere with the water level measurement.

After the internal strut 16 is fixed to the insertion portion 12b of the strut base portion 12, the strut 10 is arranged so as to cover the internal strut 16 from above as shown in FIG. 7, and the insertion portion of the strut base portion 12 is provided. The lower part of the support column 10 is inserted into 12b. In this case, the lower part of the column is inserted into the cylindrical groove portion 12c formed by the outermost ring portion and the inner ring portion thereof, and is fixed by welding, adhesion, or the like. As a result, the support column 10 can be attached to and fixed to the support column base portion 12. Next, as shown in FIG. 8, a ring-shaped ring magnet 12g inserted into the support column 10 from above is formed on the upper surface of the support column base portion 12 between the arc-shaped wall portion 12d and the insertion portion 12b. It is arranged in the recess 12f and fixed by adhesion or the like. Further, as shown in FIG. 9, the float portion 13 is inserted into the support column 10. The inner diameter of the insertion hole formed in the center of the float portion 13 is slightly larger than the outer diameter of the strut 10, and the float portion 13 can freely move up and down along the strut 10. The outer diameter of the cap 11 is made larger than the inner diameter of the insertion hole formed in the float portion 13, and after the float portion 13 is inserted into the support column 10, the cap 11 is attached to the upper end of the support column 10 to float. It is possible to prevent the portion 13 from coming out of the support column 10.

Inside the float unit 13, a microcontroller 110, a sensor of the sensor unit 111, a positioning device 112, a warning display unit 113, a communication network communication I / F 114, and a wide area communication network communication I / F 115 are housed. As shown in FIG. 14, the float portion 13 includes a resin float case 13-1 and a float cover 13-2 fixed to the float case 13-1 so as to close the upper surface of the float case 13-1. A storage space is formed inside. As shown in FIGS. 10A and 10B, the float case 13-1 has a circular bottom surface having a substantially circular insertion hole formed in the center, and a low height erected from the outer peripheral edge of the bottom surface. A cylindrical peripheral wall portion 13d and a cylindrical insertion wall 13b are formed from the edge portion of the insertion hole, and a screw portion 13c composed of a plurality of bosses is formed inside the bottom surface. A ring-shaped circuit board 13e having a substantially circular insertion hole formed in the center thereof is inserted into the insertion wall 13b and placed between the peripheral wall portion 13d and the insertion wall 13b, and four first screws 13g are inserted. The circuit board 13e is fixed to the float case 13-1 by passing through the screw holes 13f formed in the circuit board 13e and screwing them into the screw portion 13c.

On the back surface of the circuit board 13e, four reed switches (hereinafter referred to as "reed SW") 13h are provided at equal intervals of approximately 90 °. The lead SW13h constitutes the SW of the power supply unit 116, and when the bottom surface of the float portion 13 is close to the ring magnet 12g fixed to the support column base portion 12, the lead SW13h is affected by the action of the ring magnet 12g. Is off, and when the water level rises above a significant water level and the float portion 13 floats on the water and separates from the ring magnet 12g, the lead SW13h is turned on and power is supplied to the circuit board 13e. That is, in a state where there is no water at the installation point of the water level gauge 1 of the first embodiment and the float unit 13 is not floating, the power supply from the power supply unit 116 of the water level gauge 1 is automatically turned off, and water is supplied to the installation point. When the accumulated water level becomes a significant water level or higher and the float unit 13 floats on the water, the power supply unit 116 automatically supplies power to the water level meter 1, and the water level is detected. As a result, it is possible to save power in the water level gauge 1 of the first embodiment.

When the circuit board 13e is attached to the float case 13-1, the first sensor 18a and the second sensor 18b constituting the other side of the sensor unit 111 are then attached to the outer peripheral surface of the insertion wall 13b as shown in FIG. It is fixed by adhesion or the like. Further, a battery 18c, which is a secondary battery such as a nickel hydrogen battery or a lithium ion battery, is arranged and attached to the circuit board 13e. The first sensor 18a and the second sensor 18b each consist of three elongated sensor conductors formed in an arc shape, and the lead wires drawn from the respective sensor conductors are soldered to the circuit board 13e. The lead wire drawn from the battery 18c is also soldered to the circuit board 13e.

Next, as shown in FIG. 12, a substantially ring-shaped first light emitting portion 17a, a second light emitting portion 17b, and an antenna 18d with notches between the ends are provided on the circuit board 13e, and the float case 13-1 is provided. Placed inside. The first light emitting unit 17a and the second light emitting unit 17b are composed of an LED (light emitting diode) or the like. The outer diameter of the substantially circular first light emitting portion 17a is slightly smaller than the inner diameter of the peripheral wall portion 13d, and the outer peripheral surface of the first light emitting portion 17a is arranged along the inner peripheral surface of the peripheral wall portion 13d and is pulled out from the end portion. The lead wire is soldered to the circuit board 13e. Further, the inner diameter of the second light emitting portion 17b having a substantially circular shape is substantially the same as the outer diameter of the insertion wall 13b, and the second light emitting portion 17b is fitted into the insertion wall 13b and is attached or adhered to the upper part of the insertion wall 13b. The lead wire attached to the circuit board and drawn from the end portion is soldered to the circuit board 13e. The first light emitting unit 17a and the second light emitting unit 17 form a warning display unit 113, and when the float unit 13 rises above the specified water level, the first light emitting unit 17a emits light and the water surface boundary. Irradiation to the vicinity improves the visibility of the water surface. Further, the second light emitting unit 17b emits light to illuminate the support column 10, so that the visibility from a distance and the visibility of the support column 10 itself are improved. The float cover 13-2 is made of a light-transmitting resin material, and the float case 13-1 may also be made of a light-transmitting resin material. The antenna 18d is soldered onto the circuit board 13e. This antenna 18d is composed of an inverted F antenna, shares the antenna of the communication network communication I / F 114 and the wide area communication network communication I / F 115, and the antenna of the positioning device 112, and the directivity is substantially sky. It has directivity in the circumferential direction of the float portion 13 with the direction as the main lobe.

Next, as shown in FIG. 13, the first solar panel 17c and the second solar panel 17d having a base having an arc shape and a V-shaped cross section are mounted on the circuit board 13e so as to face each other at about 180 °. Has been done. The lead wires drawn from the first solar panel 17c and the second solar panel 17d are soldered to the circuit board 13e. The battery 18c is charged by the electromotive force of a solar panel having a predetermined width arranged on an obliquely upward slope of a V-shaped base of the first solar panel 17c and the second solar panel 17d. In this case, by setting the width of the solar panel to a predetermined width, it is possible to secure sunshine regardless of the arrangement direction of the float portion 13. The first solar panel 17c and the second solar panel 17d are fixed to each other on the circuit board 13e by two second screws 17e.

Then, as shown in FIG. 14, the upper surface of the float case 13-1 is closed by the float cover 13-2 arranged on the upper surface of the float case 13-1. The float cover 13-2 has a substantially circular insertion hole 13i formed in a substantially central portion, and is formed on a slope whose height gradually decreases toward the outer peripheral edge. The inner peripheral surface of the insertion hole 13i of the float cover 13-2 is fixed to the outer peripheral surface of the upper end of the insertion wall 13b of the float case 13-1 by sticking or adhesion, and the outer peripheral edge of the float cover 13-2 is the float case 13. It is fixed to the upper end edge of the peripheral wall portion 13d of -1 by sticking or adhering. As a result, the internal storage space formed by the float case 13-1 and the float cover 13-2 is maintained in airtightness. As a result, the float portion 13 has a structure that floats on water.
Although not shown, the circuit board 13e incorporates a microcontroller 110, a communication network communication I / F 114, and a wide area communication network communication I / F 115. Since there is no concern that the inside of the float portion 13 will be flooded by water, by arranging the antenna 18d inside the float portion 13, even if the water level gauge 1 of the first embodiment flows out, communication is reliably performed. It becomes possible.

In the water level gauge 1 of the first embodiment of the present invention, the explanation for detecting the water level will be given with reference to FIGS. 15 to 19. 15 is a diagram showing a schematic configuration of the sensor unit 111, FIG. 16 is a diagram showing the principle of detecting the water level by the sensor unit 111, FIG. 17 is a front view showing the configuration of the second sensor 18b, and FIG. 18 is a front view showing the configuration of the sensor unit 111. A front view showing an operation of detecting the water level, FIG. 18 is a front view showing an operation of the sensor unit 111 detecting the water level.
The sensor unit 111 is provided in three stages on the outer peripheral surface of the tubular base portion 15 and the first sensor 18a and the second sensor 18b provided along the outer peripheral surface of the insertion wall 13b of the float case 13-1. It is composed of a ring-shaped conductor portion 15 including a first conductor portion 15a, a second conductor portion 15b, and a third conductor portion 15c. Since the first sensor 18a and the second sensor 18b have the same configuration and are arranged at the same height, the configuration of the second sensor 18b will be described with reference to FIG.
As shown in FIG. 17, the second sensor 18b has three elongated metal first sensor conductors 18-1a, which are formed on three elongated insulators having one end fixed and arranged parallel to each other. It is composed of two sensor conductors 18-1b and a third sensor conductor 18-1c. The first sensor conductors 18-1a to the third sensor conductors 18-1c are arranged vertically in parallel at equal intervals, and lead wires 18-2 are pulled out from the sensor conductors 18-1a to 18-1c at one end. There is. The lead wires 18-2 are soldered to the circuit board 13e.

The sensor unit 111 is of a capacitance type, and has one of the sensor conductors 18-1a to 18-1c of the first sensor 18a and the second sensor 18b made of metal and 3 on the outer peripheral surface of the tubular base portion 15. A predetermined capacitance is generated when any of the first conductor portion 15a, the second conductor portion 15b, and the third conductor portion 15c of the metal ring-shaped conductor portion 15 provided on the step is close to each other so as to overlap each other. Then, the oscillation circuit on the circuit board 13e starts oscillating, and the oscillation state detection circuit on the circuit board 13e detects the oscillation signal to detect the water level. The water level may be detected by directly measuring the change in capacitance. In this case, the first conductor portion 15a to the third conductor portion 15c are ring-shaped, and the first sensor 18a and the second sensor 18b are formed so that the water level can be detected regardless of the orientation of the float portion 13. Sensor conductors 18-1a to 18-1c are arranged over substantially the entire circumference of the insertion wall 13b, and the first sensor 18a and the second sensor 18b are provided in parallel at the same water level in order to prevent erroneous detection. As a result, even if one sensor cannot be detected due to dirt or the like, the other sensor can detect it, and redundancy can be achieved with a simple structure.

In the schematic configuration of the sensor unit 111 shown in FIG. 15, only the first sensor 18a is shown. In this case, since the first sensor 18a and the second sensor 18b are provided symmetrically on the insertion wall 13b of the float case 13-1, the second sensor 18b overlaps the first sensor 18a when projected. When the water level at the installation position of the water level gauge 1 rises, the float portion 13 floats on the water and rises along the support column 10. Therefore, the lead SW13h is turned on and the water level gauge 1 of the first embodiment is turned on to raise the water level. It will be in a detectable state. Then, when the first sensor 18a or the second sensor 18b arranged in the float case 13-1 rises to the ring-shaped conductor portion 15 arranged in the tubular base portion 15, the sensor conductors 18-1a to 18- Since it has a capacitance between 1c and the ring-shaped conductor portion 15 and is in an oscillating state, it is determined that a significant water level has been reached. When the first sensor 18a or the second sensor 18b rises to the second conductor portion 15b or the third conductor portion 15c arranged on the tubular base portion 15, it also enters an oscillating state, and it is determined that the water level has reached a significant level or higher. Will be done. An oscillation circuit corresponding to each of the sensor conductors 18-1a to 18-1c is provided so that it can be known which sensor conductor has the capacitance.

As shown in FIG. 15, in the first sensor 18a, three elongated metal first sensor conductors 18-1a, second sensor conductors 18-1b, and third sensor conductors 18-1c having a width d0 move up and down at an interval t0. It is configured to be arranged in parallel with. Further, on the outer peripheral surface of the tubular base portion 15, a first conductor portion 15a having a width d1 is provided at the lower end, and a second conductor portion 15b having a width d2 at an interval t1 is provided on the first conductor portion 15a. At t2, the third conductor portion 15c is provided slightly below the upper end of the tubular base portion 15. As an example of the dimensions, the width d0 is about 3 mm, the interval t0 is about 10 mm, the width d1 is about 2 mm, the interval t1 is about 33 mm, the width d2 is about 15 mm, and the interval t2 is about 13 mm.

When the water level at the position where the water level gauge 1 is installed rises, the float portion 13 rises along the support column 10 according to the water level. 18 (a) (b) (c) and 19 (d) (d) show how the first sensor 18a (second sensor 18b) built in the float portion 13 rises as the water level at the installation position rises. Shown in e). In these figures, only the second sensor 18b is shown.
FIG. 18A shows a state in which the water level at the position where the water level gauge 1 is installed has not risen. In this case, the lead SW13h is turned off, the oscillation is stopped, and the water level is not detected. FIG. 18B shows a state in which the water level at the position where the water level gauge 1 is installed rises and the first sensor conductor 18-1a at the highest position overlaps with the first conductor portion 15a at the lowest position. As shown, oscillation is started and the lowest water level 1 is detected. This state is indicated by the fact that the sensor conductor 18-1a and the ring-shaped conductor 15a are overlapped with each other in the chart of FIG. 16, and the water level at this time is shown as "water level 1". Has been done. When the water level at the position where the water level gauge 1 is installed rises further, the second sensor conductor 18-1b at the intermediate position overlaps with the first conductor portion 15a at the lowest position, oscillation is started, and the second lowest is the second. Water level 2 is detected. This state is shown in the chart of FIG. 16 by the fact that the sensor conductor 18-1b and the ring-shaped conductor portion 15a are overlapped with "○", and the water level at this time is shown as "water level 2". Has been done.

FIG. 18C shows a state in which the water level at the position where the water level gauge 1 is installed further rises and the third sensor conductor 18-1c at the lowest position overlaps the first conductor portion 15a at the lowest position. Is shown, oscillation is started, and the third water level 3 is detected. This state is shown in the chart of FIG. 16 by the fact that the sensor conductor 18-1c and the ring-shaped conductor portion 15a are overlapped with "○", and the water level at this time is shown as "water level 3". Has been done. In FIG. 18D, the water level at the position where the water level gauge 1 is installed further rises, and the first sensor conductor 18-1a at the highest position and the second sensor conductor 18-1b at the intermediate position are at the second intermediate position. A state in which the conductor portion 15b overlaps the conductor portion 15b is shown, oscillation is started, and the fourth water level 4 is detected. This state is shown in the chart of FIG. 16 by the fact that the sensor conductors 18-1a and 18-1b and the ring-shaped conductor portion 15b are overlapped with "○", and the water level at this time is "water level". It is shown as "4". When the water level at the position where the water level gauge 1 is installed rises further, the second sensor conductor 18-1b at the intermediate position and the third sensor conductor 18-1c at the lowest position overlap the second conductor portion 15b at the intermediate position. , Oscillation is started and the fifth water level 5 is detected. This state is shown in the chart of FIG. 16 by the fact that the sensor conductors 18-1b and 18-1c and the ring-shaped conductor portion 15b are overlapped with "○", and the water level at this time is "water level". It is shown as "5". In FIG. 18E, the water level at the position where the water level gauge 1 is installed further rises, and the first sensor conductor 18-1a at the highest position to the third sensor conductor 18-1c at the lowest position are at the highest position. A state in which the third conductor portion 15c is overlapped is shown, oscillation is started, and the highest sixth water level 6 is detected. This state is shown in the chart of FIG. 16 by the fact that the columns 18-1a to 18-1c of the sensor conductor and the column 15c of the ring-shaped conductor portion are overlapped with "○", and the water level at this time is "water level". It is shown as "6".

Raising the specific value of the detected water level when the above dimensions are taken, "water level 1" is about 20 mm, which is the water level for the flood control team, and "water level 2" is above the specified water level, which is the flood caution water level. About 30 mm, "water level 3" is about 40 mm, which is the evacuation judgment water level, "water level 4" is about 63 mm, which is the inundation risk water level, and "water level 5" is about 73 mm, which is the inundation occurrence water level. The "water level 6" is about 102 mm, which is the water level at which flooding occurs.
In the sensor unit 111 of the water level gauge 1 of the first embodiment, the first sensor 18a and the second sensor 18b having sensor conductors made of three metal thin plates and metal foils, and the metal thin plates provided in three stages are provided. Since it is composed of a ring-shaped conductor portion 15 which is a metal foil or a metal foil, the manufacturing cost can be reduced. Further, the sensor unit 111 may be appropriately selected from a float type, an ultrasonic type, a pressure type and the like instead of the capacitance type according to the cost and application.
If a reflective sheet that reflects light is provided on the peripheral surface of the support column in the water level gauge 1 of the first embodiment, it can also function as a line-of-sight guide marker as a road accessory.

<Second Example>
Since the electrical configuration of the water level gauge 2 of the second embodiment of the present invention is the same as that of the water level gauge 1 of the first embodiment, the description thereof will be omitted, but the water level gauge 2 of the second embodiment is a micro. It is equipped with a controller, a sensor unit, a positioning device including a time information acquisition device, a warning display unit, a communication network communication I / F, and a wide area communication network communication I / F, and these are connected by a bus. It also has a power supply unit that supplies power to each unit. The detected water level information, the time information at which the water level was detected, and the position information of the water level gauge 2 of the second embodiment are transferred from the communication network communication I / F or the wide area communication network communication I / F to the information processing device at a predetermined timing. Will be sent. The information processing device has at least the function of creating a disaster prevention map that displays the flooded area. In addition, when a flood occurs at the installation position of the water level gauge 2 and the water level exceeds the specified level, the warning display unit is turned on to notify that the flood has occurred.

Next, the physical configuration of the water level gauge 2 according to the second embodiment of the present invention is shown in FIGS. 20 to 28. FIG. 20 is a perspective view showing the configuration of the water level gauge 2 of the second embodiment, FIG. 21 is an assembly drawing showing the configuration of the water level gauge 2 of the second embodiment in a perspective view, and FIG. 22 is a water level gauge 2 of the second embodiment. 23 is an assembly drawing showing the configuration of the float base of the water level gauge 2 of the second embodiment in a perspective view, and FIG. 24 is an assembly drawing showing the configuration of the float base of the water level gauge 2 of the second embodiment in a perspective view. Yet another assembly drawing shown in perspective view, FIG. 25 is still another assembly drawing showing the configuration of the water level gauge 2 of the second embodiment in a perspective view, and FIG. 26 is a configuration of the unit cover in the water level gauge 2 of the second embodiment. 27 is an assembly view showing the configuration of the unit case in the water level gauge 2 of the second embodiment in a perspective view seen from diagonally above the front, FIG. 28 (a) is an assembly view showing the configuration of the unit case in the water level gauge 2 of the second embodiment. An assembly drawing showing the configuration of the float case in the water level gauge 2 of the second embodiment as a perspective view seen from diagonally above the front, FIG. 28 (b) shows the configuration of the float case in the water level gauge 2 of the second embodiment diagonally below the front. It is an assembly drawing which shows by the perspective view seen from.

By explaining the assembly of the water level gauge 2 of the second embodiment with reference to these figures, the configuration of the water level gauge 2 will be described below. The water level gauge 2 of the second embodiment according to the present invention has a cylindrical vertically elongated resin support 150, a resin or metal support base 150a attached to the lower end of the support 150, and a support. It is composed of a float portion 20 inserted through the 150. The support column 150 shown in FIG. 21 is made of a resin columnar body existing on the ground including a road, and a disk-shaped support column base portion 150a having a slope to which the lower portion of the support column 150 is fixed is fixed to the ground surface. .. In the water level gauge 2 of the second embodiment, it is possible to provide the water level gauge 2 in which the existing structure is used as the support column 150 and it is not necessary to consider the installation location where the water level can be measured with a simple configuration. As the support 150, for example, a line-of-sight guide mark attached to the road can be used.
As shown in FIG. 21, a five-stage water absorbing sheet 24 is fixed to the peripheral surface of the existing support column 150 by sticking, adhesion, or the like. The five-stage water absorption sheet 24 is provided with a suction unit 24f, and the suction unit 24f can suck up water at the time of flooding and supply water to the water absorption sheet 24 of each stage, and the water absorption sheet to which the water is supplied. 24 functions as a conductor. The five-stage water absorption sheet 24 is a first water absorption sheet 24a having a narrow ring shape provided at the lower end of the outer peripheral surface of the support column 150, and a first water absorption sheet 24a provided on the first water absorption sheet 24a at predetermined intervals. A ring-shaped second water-absorbing sheet 24b having a wider width, a ring-shaped third water-absorbing sheet 24c having a predetermined width provided on the second water-absorbing sheet 24b at a predetermined interval, and a predetermined interval on the third water-absorbing sheet 24c. It is composed of a ring-shaped fourth water-absorbing sheet 24d having a predetermined width and a ring-shaped fifth water-absorbing sheet 24e provided on the ring-shaped fourth water-absorbing sheet 24e at a predetermined interval from the upper end. .. The sensor unit of the water level gauge 2 of the second embodiment is of the capacitance type, and the five-stage water absorption sheet 24 constitutes one of the sensor units. The other component of the sensor unit will be described later.

Next, as shown in FIG. 22, the resin float base 22 is inserted from above the support column 150 to which the water absorption sheet 24 is fixed. The float base portion 22 is composed of a base main body 22a having a slope having a through hole 22b formed substantially in the center, and the circumference of the through hole 22b is a ring-shaped flat surface portion, and the slope is gradually lowered in height from the flat surface portion. It is shaped to reach the peripheral edge through. The inner diameter of the through hole 22b formed at substantially the center of the float base 22 is formed to be larger than the outer diameter of the support column 150, and the float base portion 22 can freely move up and down along the support column 150.
As shown in FIG. 23, the bottom surface of the base body 22a of the float base portion 22 is a flat bottom surface, and a resin ring-shaped fixing portion 22c is fixed to the bottom surface by sticking or adhesion. The outer and inner peripheral edges of the ring-shaped fixing portion 22c are slightly stretched downward to form a groove between them, and a ring-shaped float 22d made of a buoyant material such as a ring-shaped foaming material is attached to the groove. It is fixed by adhesion or the like. As a result, the float base 22 floats on water. Further, the tapered space formed on the bottom surface of the float base portion 22 is sized to accommodate the support column base portion 150a.

Further, as shown in FIG. 24, the float unit 21 is inserted from above into the support column 150 through which the float base portion 22 is inserted. The float unit 21 has an airtight storage space inside, and is composed of a unit case 21-1 and a unit cover 21-2. The bottom surface of the float unit 21 is fixed to the ring-shaped flat surface portion on the upper surface of the float base portion 22 by welding, adhesion, or the like to form the float portion 20. The inner diameter of the insertion hole formed in the substantially center of the float unit 21 is substantially the same as the diameter of the through hole 22a of the float base 22, and the float portion 20 can freely move up and down along the support column 150. Can be done.

Two rectangular standing pieces 21c are formed on the upper surface of the unit cover 21-2 so as to be located on both sides of the insertion hole and face each other. A hole is formed in the standing piece 21c, and both ends of the adjusting bolt 23 bent in a U shape are inserted into the hole. Screws are formed at both ends of the adjusting bolt 23, and the second nut 23a is screwed into each of the screws. It is conceivable that the outer diameter of the support column 150 has various outer diameters because the support column 150 is already installed. Therefore, by adjusting the size of the gap between the support column 150 and the insertion hole of the float portion 20 with the adjusting bolt 23, the first sensor 21e and the second sensor 21e and the second sensor, which will be described later, are built in the water absorption sheet 24 and the float portion 20. The distance to the sensor 21f is adjusted. The shape of the adjusting bolt 23 is not limited to the U-shape, but may be a U-shape or the like.
Next, the two retaining fittings 25 are fixed to the upper end of the support column 150 by the screws 25a and the first nut 25b. The retaining metal fitting 25 is configured by bending both ends of a semicircular portion to be fastened to the outer peripheral surface of the support column 150, and the bent both ends of the two retaining metal fittings 25 are made to face each other to the relevant portion. Two screws 25a are inserted into the formed holes, and each of the two first nuts 25b is screwed into the two screws 25a. As a result, the two retaining metal fittings 25 can be fixed to the upper end portion of the support column 150, and it is possible to prevent the float portion 20 from coming out of the support column 150 and being washed away even if the water level rises.

In the storage space inside the float unit 21 including the unit case 21-1 and the unit cover 21-2, there are a microcontroller, a sensor of the sensor unit, a positioning device, a warning display unit, a communication network communication I / F, and wide area communication. The network communication I / F is stored. As shown in FIG. 26, the resin unit cover 21-2 has a circular upper surface having a substantially circular insertion hole formed in the center, and a cylindrical second peripheral wall portion erected from the outer peripheral edge of the upper surface. A 21k and a second insertion wall 21j having a substantially circular cylindrical cross section erected from the edge of the insertion hole are formed, and a plurality of bosses are formed inside the upper surface. A ring-shaped second circuit board 27b having a substantially circular insertion hole formed in the center thereof is inserted into the second insertion wall 21j and placed between the second peripheral wall portion 21k and the second insertion wall 21j. The second circuit board 27b is fixed to the unit cover 21-2 by passing the four second screws 21i through the screw holes formed in the second circuit board 27b and screwing them onto the boss.

Four arc-shaped solar panels 27c having a predetermined width are arranged at equal intervals of about 90 ° on the upper surface of the second circuit board 27b, and a nickel-metal hydride battery or a lithium ion battery is arranged on the lower surface of the second circuit board 27b. Four batteries 21h, which are secondary batteries such as the above, are arranged at equal intervals of about 90 °. The lead wires drawn from each solar panel 27c and each battery 21h are soldered to the second circuit board 27b. The unit cover 21-2 is preferably made of a light-transmitting resin so that the solar panel 27c can generate electricity efficiently, and the four batteries 21h are charged by the electromotive force of the four solar panels 27c. Become. In this case, since the four solar panels 27c are arranged so as to cover almost the entire circumference, it is possible to secure the sunshine regardless of the arrangement direction of the float unit 21. Further, a substantially ring-shaped light emitting portion 27a with a notch between the ends is arranged along the inner peripheral surface of the second peripheral wall portion 21k of the unit cover 21-2. The light emitting unit 27a is composed of an LED or the like. The lead wire drawn from the end of the light emitting portion 27a is soldered to the second circuit board 27b. The light emitting unit 27a constitutes a warning display unit, and when the float unit 20 rises above the specified water level, the light emitting unit 27a emits light and irradiates the vicinity of the water surface boundary to improve the visibility of the water surface. To. Further, the light emitting portion 27a illuminates the support column 150 to improve the visibility from a distance and the visibility of the support column 150 itself.

As shown in FIG. 27, the resin unit case 21-1 has a circular bottom surface having a substantially circular insertion hole formed in the center, and a cylindrical first peripheral wall portion erected from the outer peripheral edge of the bottom surface. 21a and a cylindrical first insertion wall 21b erected from the edge of the insertion hole are formed, and a plurality of bosses (not shown) are formed inside the bottom surface. A ring-shaped first circuit board 21c having a substantially circular insertion hole formed in the center thereof is inserted into the first insertion wall 21b and placed between the first peripheral wall portion 21a and the first insertion wall 21b. The first circuit board 21c is fixed to the unit case 21-1 by passing the four first screws 21d through each of the four screw holes formed in the first circuit board 21c and screwing them onto the boss. To. The first sensor 21e and the second sensor 21f, which form the other side of the sensor unit, are displaced from each other by a predetermined interval in the height direction and are fixed to the outer peripheral surface of the first insertion wall 21b by sticking or adhesion. The first sensor 21e and the second sensor 21f each consist of three elongated sensor conductors formed in an arc shape, and the lead wires drawn from the respective sensor conductors are soldered to the first circuit board 21c. Further, a three-stage arc-shaped antenna 21g is arranged along the inner peripheral surface of the first peripheral wall portion 21a, and the lead wire drawn from the antenna 21g is soldered to the first circuit board 21c. There is. The antenna 21g is configured by integrating the antenna of the positioning device (time information acquisition device) and the antennas of the communication network communication I / F and the wide area communication network communication I / F into one, in descending order of frequency. It is laminated. Although not shown, the microcontroller, the positioning device (time information acquisition device), the communication network communication I / F, and the wide area communication network communication I / F are arranged on the first circuit board 21c. A lead wire having a connector attached to the tip is pulled out from the second circuit board 27b, and this connector is attached to the connector of the first circuit board 21c to connect the first circuit board 21c and the second circuit board 27b. Then, the circuits arranged in each of them come to operate in cooperation with each other.

As shown in FIGS. 28A and 28B, the float unit 21 is a lead wire drawn from the second circuit board 27b with the opening surfaces of the unit case 21-1 and the unit cover 21-2 facing each other. The connector at the tip is attached to the first circuit board 21c. Next, the opening surface of the lower surface of the unit cover 21-2 is fixed to the opening surface of the upper surface of the unit case 21-1 by welding, adhesion, or the like. As a result, the opening surfaces of the unit case 21-1 and the unit cover 21-2 are closed, the airtightness of the storage space inside the float unit 21 is maintained, and the float unit 21 has a structure that floats on water. Become.

In the water level gauge 2 of the second embodiment of the present invention, the explanation for detecting the water level will be given with reference to FIGS. 29 and 30. 29 (a) is a diagram showing a schematic configuration of the sensor unit, FIG. 29 (b) is a front view showing the configurations of the first sensor 21e and the second sensor 21f, and FIG. 30 shows the principle of detecting the water level by the sensor unit. It is a chart.
The sensor unit in the water level gauge 2 of the second embodiment includes the first sensor 21e and the second sensor 21f provided so as to be displaced from each other in the height direction along the outer peripheral surface of the first insertion wall 21b of the unit case 21-1. Consists of a water absorption sheet 24 composed of a first water absorption sheet 24a, a second water absorption sheet 24b, a third water absorption sheet 24c, a fourth water absorption sheet 24d, and a fifth water absorption sheet 24e provided on the outer peripheral surface of the support column 150 in five stages. Will be done.
As shown in FIG. 29 (b), the first sensor 21e has three elongated metal first sensor conductors 21-formed on three elongated insulators having one end fixed and arranged parallel to each other. It is composed of 1a, a second sensor conductor 21-1b, and a third sensor conductor 21-1c. The same applies to the second sensor 21f, and the three elongated metal first sensor conductors 21-2a and the second sensor conductor formed on the three elongated insulators whose one ends are fixed and arranged parallel to each other. It is composed of 21-2b and a third sensor conductor 21-2c. The first sensor conductors 21-1a, 21-2a to the third sensor conductors 21-1c, 21-2c are arranged vertically and vertically at equal intervals, and at one end, the sensor conductors 21-1a to 21-1c, 21 are arranged. Lead wires 21-3 are pulled out from -2a to 21-2c. The lead wires 21-3 are soldered to the first circuit board 21c.

The sensor unit is of the capacitance type, and is one of the sensor conductors 21-1a to 21-1c and 21-2a to 21-2c of the first sensor 21e and the second sensor 21f made of metal, and the outer circumference of the support column 150. An oscillating circuit on the first circuit board 21c when any of the first water absorbing sheet 24a to the fifth water absorbing sheet 24e of the water absorbing sheet 24 to which the submerged water is supplied, which is provided on the surface in five stages, is close to each other so as to overlap each other. Starts oscillating, and the oscillating state detection circuit on the first circuit board 21c detects the oscillating signal to detect the water level. In this case, the first sensor 21e and the second sensor 21f are arranged so as to be shifted in the height direction by the height t03 so that the step of the height of the water level can be reduced and detected.

In the schematic configuration of the sensor unit shown in FIG. 29 (a), when the water level at the installation position of the water level gauge 2 rises, the float unit 20 rises along the support column 150. At this time, the suction unit 24f sucks up the submerged water and supplies water to the water absorption sheets 24 of each stage, and the first water absorption sheets 24a to the fifth water absorption sheets 24e function as conductors. As a result, when the uppermost first sensor conductor 21-1a of the first sensor 21e arranged in the unit case 21-1 rises to the lowermost first water absorbing sheet 24a arranged on the support column 150, the first one. Since the sensor conductor 21-1a and the first water absorption sheet 24a have a capacitance and are in an oscillating state, it is determined that a significant water level has been reached. When each sensor conductor of the first sensor 21e or the second sensor 21f rises to the first water absorption sheet 24a to the fifth water absorption sheet 24e arranged on the support column 150, it also enters an oscillating state, and it is determined that the water level has reached a significant level or higher. Will be done.
As shown in FIG. 29 (a), the first sensor 21e and the second sensor 21f are three elongated metal first sensor conductors 21-1a to 21-1c and 21-2a to 21- with a width d02. 2c are arranged in parallel vertically at intervals t02. Further, on the outer peripheral surface of the support column 150, a first water absorbing sheet 24a having a width d11 is provided at the lower end, and a second water absorbing sheet 24b having a width d12 at an interval t11 is provided on the first water absorbing sheet 24a having a width d11. A third water absorption sheet 24c of No. 3 is provided, a fourth water absorption sheet 24d having a width d14 at an interval t13 is provided on the third water absorption sheet 24c, and a fifth water absorption sheet 24c is provided on the fourth water absorption sheet 24c at an interval t14 slightly below the upper end of the support column 150. ing. As an example of the dimensions, the width d02 is about 3 mm, the interval t02 is about 3 mm, the width d11 is about 3 mm, the interval t11 is about 15 mm, the width d12 is about 6 mm, the interval t12 is about 12 mm, and the width d13 is about 9 mm. The interval t13 is about 9 mm, the width d14 is about 12 mm, and the interval t14 is about 6 mm.

When the power of the water level gauge 2 of the second embodiment is turned on and the water level at the installed position rises, the float portion 20 rises along the support column 150 according to the water level. As the water level at the installation position rises, the first sensor 21e and the second sensor 21f built in the float unit 20 rise, so that "water level 1" to "water level 20" shown in the chart of FIG. 30 are detected. become.
That is, when the water level at the position where the water level gauge 2 of the second embodiment is installed does not rise, the suction unit 24f does not suck up water, and the first water absorption sheet 24a to the fifth water absorption sheet 24e are non-conductors. Is functioning as. In this case, since none of the first sensor conductors 21-1a to 21-1c and 21-2a to 21-2c overlap with the first water absorption sheet 24a to the fifth water absorption sheet 24e, the oscillation is stopped and the water level is reached. Is not detected. When the water level rises from this state, the suction unit 24f sucks up the submerged water and supplies water to the water absorption sheet 24 of each stage, and the first sensor conductor 21-1a of the first sensor 21e at the highest position is at the lowest position. When it overlaps with the first water absorption sheet 24a, oscillation is started and the lowest water level 1 is detected. This state is shown by the fact that the column 1a of the sensor 21e and the column 24a of the water absorption sheet are overlapped with each other in the chart of FIG. 30, and the water level at this time is shown as "water level 1". When the water level rises further and the first sensor conductor 21-2a of the second sensor 21f overlaps the first water absorption sheet 24a at the lowest position, oscillation is started and the next lowest water level 2 is detected. This state is shown by the fact that the 2a of the sensor 21f and the 24a of the water absorption sheet are overlapped with each other in the chart of FIG. 30, and the water level at this time is shown as "water level 2".

Further, when the water level further rises and the first sensor conductor 21-1a of the first sensor 21e and the first sensor conductor 21-2a of the second sensor 21f overlap the second water absorption sheet 24b, oscillation is started. Water level 7 is detected. This state is shown in the chart of FIG. 30 by the fact that 1a of the sensor 21e and 2a of the sensor 21f and the column of 24b of the water absorption sheet are overlapped with "○", and the water level at this time is set as "water level 7". It is shown.
Further, the water level further rises, and the first sensor conductor 21-1a and the second sensor conductor 21-1b of the first sensor 21e and the first sensor conductor 21-2a and the second sensor conductor 21-2b of the second sensor 21f When it overlaps with the fourth water absorbing sheet 24d, oscillation is started and the water level 16 is detected. This state is shown in the chart of FIG. 30 by the fact that 1a and 1b of the sensor 21e and 2a and 2b of the sensor 21f and the column of 24d of the water absorption sheet are overlapped with "○", and the water level at this time is ". It is shown as "water level 16".
In this way, some states of the chart shown in FIG. 30 have been described, but in the chart shown in FIG. 30, it is shown that the sensor conductor of the sensor indicated by “◯” and the water absorption sheet overlap each other. Since this overlap changes according to the height of the water level, it becomes possible to detect "water level 1" to "water level 20" shown in the chart of FIG. In this case, since the first sensor 21e and the second sensor 21f are arranged so as to be offset in the height direction by the height t03, the resolution of the water level is improved, so that the steps are small, "water level 1" to "". Water level 20 "can be detected.

Raising the specific values of the detected water level when the above dimensions are taken, "water level 1" is about 18 mm, "water level 2" is about 21 mm, "water level 3" is about 24 mm, and "water level 4" is about 27 mm. , "Water level 5" is about 30 mm, "Water level 6" is about 33 mm, "Water level 7" is about 39 mm, "Water level 8" is about 42 mm, "Water level 9" is about 45 mm, "Water level 10" is about 48 mm, ""Water level 11" is about 51 mm, "Water level 12" is about 60 mm, "Water level 13" is about 63 mm, "Water level 14" is about 66 mm, "Water level 15" is about 69 mm, "Water level 16" is about 81 mm, "Water level 17" Is about 84 mm, "water level 18" is about 87 mm, "water level 19" is about 102 mm, and "water level 20" is about 105 mm, and a water level of 18 mm to 105 mm can be detected with improved resolution.
In the sensor unit of the water level gauge 2 of the second embodiment, the first sensor 21e and the second sensor 21f, which have sensor conductors made of three thin metal plates or metal foils, are arranged by shifting them in the height direction by a predetermined interval. However, since it is configured so as to face the water absorbing sheet 24 which is a thin metal plate or a metal foil provided in five stages, the manufacturing cost can be reduced. Further, the sensor unit may be appropriately selected from a float type, an ultrasonic type, a pressure type and the like instead of the capacitance type according to the cost and application.
In the water level gauge 2 of the second embodiment, it is possible to provide the water level gauge 2 in which the existing structure is used as the support column 150 and it is not necessary to consider the installation location where the water level can be measured with a simple configuration. .. As the support 150, for example, a line-of-sight guide mark attached to the road can be used.

<Third Example>
Since the electrical configuration of the water level gauge 3 of the third embodiment of the present invention is the same as that of the water level gauge 1 of the first embodiment, the description thereof will be omitted, but the water level gauge 3 of the third embodiment is a micro. It is equipped with a controller, a sensor unit, a positioning device including a time information acquisition device, a warning display unit, a communication network communication I / F, and a wide area communication network communication I / F, and these are connected by a bus. It also has a power supply unit that supplies power to each unit. The detected water level information, the time information at which the water level was detected, and the position information of the water level gauge 3 of the third embodiment are transmitted from the communication network communication I / F or the wide area communication network communication I / F to the information processing device at a predetermined timing. Will be sent. The information processing device has at least the function of creating a disaster prevention map that displays the flooded area. In addition, when a flood occurs at the installation position of the water level gauge 3 and the water level exceeds the specified level, the warning display unit is turned on to notify that the flood has occurred.

Next, the physical configuration of the water level gauge 3 according to the third embodiment of the present invention is shown in FIGS. 31 to 43. 31 is a top view showing the configuration of the water level gauge 3 of the third embodiment, FIG. 32 is a front view showing the configuration of the water level gauge 3 of the third embodiment, and FIG. 33 is a configuration of the water level gauge 3 of the third embodiment. An assembly view shown in a perspective view, FIG. 34 is a perspective view showing the configuration of a support column of the water level gauge 3 of the third embodiment, and FIG. 35 is a perspective view showing the configuration of the lead guide portion 32 of the water level gauge 3 of the third embodiment. 36 is an assembly drawing showing the configuration of the water level gauge 3 of the third embodiment in a perspective view, FIG. 37 is another assembly drawing showing the configuration of the water level gauge 3 of the third embodiment in a perspective view, and FIG. 38 is a third embodiment. Yet another assembly drawing showing the configuration of the water level gauge 3 of the example in a perspective view, FIG. 39 is an assembly drawing showing the configuration of the float portion in the water level gauge 3 of the third embodiment in a perspective view seen from diagonally below the front, FIG. 40. Is an assembly view showing the configuration of the unit cover in the water level gauge 3 of the third embodiment as a perspective view seen from diagonally below the front, and FIG. 41 is a configuration of the unit cover in the water level gauge 3 of the third embodiment viewed from diagonally above the front. FIG. 42 is an assembly diagram showing a perspective view showing the configuration of the circuit board in the water level gauge 3 of the third embodiment as viewed from diagonally below the front, and FIG. 43 is an assembly diagram showing the configuration of the circuit board in the water level gauge 3 of the third embodiment. It is an assembly drawing which shows the structure of a circuit board by the perspective view seen from the front diagonally above.

By explaining the assembly of the water level gauge 3 of the third embodiment with reference to these figures, the configuration of the water level gauge 3 will be described below. The water level gauge 3 of the third embodiment according to the present invention is composed of a cylindrical vertically elongated support column 160 and a float portion 31 inserted through the support column 160. The support column 160 shown in FIG. 34 is composed of an existing columnar body on the ground including a road, and the lower portion of the support column 160 is buried in the ground and fixed to the ground. The material of the support column 160 may be made of resin, metal, or other material. In the water level gauge 3 of the third embodiment, it is possible to provide the water level gauge 3 which does not need to consider the installation place where the water level can be measured with a simple configuration by using the existing structure regardless of the material as the support column 160. it can. As the support 160, for example, a columnar road accessory can be used.

As shown in FIGS. 31 to 33, four vertically elongated lead guide portions 32 are fixed to the outer peripheral surface of the existing support column 160. The four lead guide portions 32 are arranged in a cross shape at equal intervals of about 90 ° and are fixed to the outer peripheral surface of the column 160 so as to extend along the water level measurement direction. A float portion 31 having a structure that floats on water is fitted into a support column 160 provided with four lead guide portions 32 so as to be movable up and down, and the float portion 31 is fitted according to the water level at the installed position. The height of the water level is detected by detecting the height of the float portion 31 with the magnet 32d described later provided in the lead guide portion 32 and the lead SW35 described later built in the float portion 31. I am trying to do it. That is, the sensor unit of the water level gauge 3 of the third embodiment is composed of a magnet 32d provided in the lead guide unit 32 and a lead SW35 built in the float unit 31. The fixing band 33 fixed to the upper end of the support column 160 is a metal fitting for fixing the four reed guide portions 32 in a cross shape at equal intervals of about 90 °, and prevents the float portion 31 from coming out of the support column 160. It is also a metal fitting to prevent it.

As shown in FIG. 35, the lead guide portion 32 includes an elongated guide main body 32a made of resin, and a groove portion 32c is formed almost entirely on the mounting surface 32b which is the back surface of the guide main body 32a, and a predetermined position of the groove portion 32c is formed. The magnet 32d is fixed to the magnet by sticking or adhering. Four lead guide portions 32 having such a configuration are prepared, and the magnets 32d are fixed at different positions. In the water level gauge 3 of the third embodiment, the water level corresponding to the position of the magnet 32d can be detected. Therefore, when four lead guide portions 32 are used, the four water levels corresponding to the fixed position of the magnet 32d are used. Can be detected. The number of lead guide units 32 can be arbitrary, and the water level can be detected according to the number of lead guide units 32.
In the water level gauge 3 of the third embodiment, as shown in FIG. 36, four lead guide portions 32-1, 32-2, 32-3, and 32-4 are arranged on the outer peripheral surface of the support column 160 to form a ring shape. The lead guide fixing portions 34 of the above are arranged below the four lead guide portions 32-1 to 32-4. Then, four screws 34a are inserted from the lower surface of the lead guide fixing portion 34 into the holes formed in the lead guide fixing portion 34, and the four screws 34a are inserted into the bottom surfaces of the four lead guide portions 32-1 to 32-4. Screw on. In this case, the mounting surfaces 32b of the four lead guide portions 32-1 to 32-4 may be attached or adhered to the outer peripheral surface of the support column 160. By fixing the four lead guide portions 32 to 1-32-4 to the lead guide fixing portions 34, the arrangement positions of the four lead guide portions 32 to 1-32-4 in the circumferential direction are defined. Further, the lead guide fixing portion 34 is made of a material having a specific gravity higher than that of water, and does not float on water.

The float portion 31 is inserted from above the support column 160 as shown in FIG. 37 in a state where the four lead guide portions 32-1 to 32-4 are temporarily fixed to the outer peripheral surface of the support column 160 by the lead guide fixing portion 34. To do. An insertion hole is formed substantially in the center of the float portion 31, and four guide grooves 31g are arranged in a cross shape at equal intervals in the insertion hole. The shape of the guide groove 31g is substantially the same as the cross-sectional shape of the lead guide portion 32 and is formed slightly larger, and each of the four guide grooves 31g has a shape of each of the four lead guide portions 32-1 to 32-4. Will be fitted and positioned. As a result, the float portion 31 can freely move in the vertical direction, which is the measurement direction of the water level, along the support column 160 to which the lead guide portion 32 is mounted, but does not rotate in the circumferential direction of the support column 160. ..

Next, as shown in FIG. 38, a fixed band 33 composed of two band pieces 33a and 33b is attached to the upper end of the support column 160. The two band pieces 33a and 33b are formed by bending both ends of a semicircular portion that is fastened to the outer peripheral surface of the support column 160, and the bent ends of the two band pieces 33a and 33b are formed. Two second screws 33c are inserted into the holes formed at both ends of the four lead guide portions 32-1 to 32-4 so as to face each other. Each of the two nuts 33d is screwed onto the second screw 33c of the above. At this time, two insertion portions 33e formed on the outside of each of the semicircular portions of the two band pieces 33a and 33b hit the upper surfaces of the four lead guide portions 32-1 to 32-4, respectively. Align so that they touch. Next, the four third screws 32e are screwed onto the upper surfaces of the four lead guide portions 32-1 to 32-4 through the insertion holes of the four insertion portions 33e. As a result, the four lead guide portions 32-1 to 32-4 can be fixed to the outer peripheral surface of the support column 160 by the lead guide fixing portion 34 and the fixing band 33, and the third lead guide portion 32-3 to FIG. 33 is shown. The water level gauge 3 of the embodiment is assembled. In addition, due to the action of the fixing band 33, it is possible to prevent the float portion 31 from coming out of the support column 160 and flowing out even if the water level rises.

Next, the configuration of the float portion 31 is shown in FIG. As shown in FIG. 39, the float portion 31 includes a unit case 31-2 and a unit cover 31-1. In the storage space inside the unit cover 31-1 of the float unit 31, a microcontroller, a sensor of the sensor unit, a positioning device, a warning display unit, a communication network communication I / F, and a wide area communication network communication I / F are stored. ing. As shown in FIGS. 40 and 41, the resin unit cover 31-1 has a circular upper surface having an insertion hole in which four guide grooves 31g are formed in a substantially circular shape in the center, and an outer peripheral edge of the upper surface. The second insertion wall 31e having a substantially circular cylindrical cross section in which a cylindrical second peripheral wall portion 31d erected from the above and four guide grooves 31g erected from the edge of the insertion hole are formed. And are formed, and a plurality of bosses are formed inside the upper surface. A ring-shaped circuit board 35 is arranged between the second peripheral wall portion 31d and the second insertion wall 31e.
The unit case 31-2 is made of resin and has a first peripheral wall portion 31a having a substantially circular cylindrical cross section, and a substantially circular upper surface is formed in the middle of the inner surface of the first peripheral wall portion 31a. An insertion hole in which four guide grooves 31g are formed in a substantially circular shape is formed in the substantially center of the upper surface, and a cylindrical first insertion wall 31b erected downward from the upper surface is formed so as to surround the insertion hole. There is.

As shown in FIG. 39, the upper surface of the unit case 31-2 is made to face the lower surface of the unit cover 31-1 which is the opening surface. The inner diameter of the first peripheral wall portion 31a of the unit case 31-2 is substantially the same as the outer diameter of the second peripheral wall portion 31d of the unit cover 31-1. The bottom is inserted. At this time, the second insertion wall 31e enters the insertion hole formed in the unit case 31-2. Then, two screws 31h are inserted from the outside into the two holes formed so as to face the upper portion of the first peripheral wall portion 31a, and the screws formed so as to face the lower portion of the second peripheral wall portion 31d. Screw it into the hole. As a result, the unit cover 31-1 can be fixed to the unit case 31-2. At this time, the joint surface between the unit case 31-2 and the unit cover 31-1 may be fixed by welding, adhesion, or the like. As a result, the opening surface of the unit cover 31-1 is closed, and the airtightness of the storage space inside the unit cover 31-1 is maintained.
Further, a donut-shaped float 31-3 is fitted and fixed between the first peripheral wall portion 31a and the first insertion wall 31b of the unit case 31-2. The float 31-3 is made of a buoyant material such as a foaming material. As a result, the float portion 31 has a structure that floats on water. Further, a drain hole 31c is formed at the lower end of the unit case 31-2 so as to face each other, so that the water that has entered the inside of the float portion 31 can be drained from the drain hole 31c.

As shown in FIGS. 40 and 41, a ring-shaped circuit board 35 having a substantially circular insertion hole formed in the center thereof is inserted into the second insertion wall 31e of the unit cover 31-1 to form a second peripheral wall portion 31d. It is arranged between the second insertion wall 31e and the second insertion wall 31e. As shown in FIGS. 40 to 43, two arc-shaped solar panels 35b having a predetermined width are arranged and attached to the front surface of the circuit board 35 so as to face each other by 180 °, and nickel is mounted on the back surface of the circuit board 35. Two batteries 35c, which are secondary batteries such as a hydrogen battery and a lithium ion battery, are arranged and attached so as to face the solar panel 35b. The lead wires drawn from each solar panel 35b and each battery 35c are soldered to the circuit board 35. The unit cover 31-1 is preferably made of a light-transmitting resin so that the solar panel 35b can generate electricity efficiently, and the two batteries 35c are charged by the electromotive force of the two solar panels 35b. Become. In this case, by setting the width of the solar panel 35b to a predetermined width, it is possible to secure sunshine regardless of the arrangement direction of the float portion 31. Further, four light emitting units 35d composed of LEDs and the like are arranged on the back surface of the circuit board 35 at equal intervals of about 90 ° toward the outside. The lead wires drawn from the ends of the four light emitting units 35d are soldered to the circuit board 35. The four light emitting units 35d constitute a warning display unit, and when the float unit 31 rises above the specified water level, the four light emitting units 35d emit light and irradiate the vicinity of the water surface boundary to visually recognize the water surface. You will improve your sexuality. Further, if the light emitting unit 35d that illuminates the support column 160 is provided, the visibility from a distance and the visibility of the support column 160 itself are improved.

Further, four sets of lead SW35a, which are one set of two, are prepared, and one set is arranged on the back surface of the circuit board 35 at equal intervals of about 90 °. The lead wires drawn from the ends of the four sets of lead SW35a are soldered to the circuit board 35. The two leads SW35a of each set of the four sets of lead SW35a are arranged so as to sandwich the lead guide portion 32. In addition, three rows of arc-shaped antennas 35g are fixed to the back surface of the circuit board 35 by printing or sticking, and the antenna 35g is connected to the antenna of the positioning device (time information acquisition device) for communication network communication. The antennas of the I / F and the wide area communication network communication I / F are integrated into one, and are arranged on the outside in descending order of frequency. Although not shown, the microcontroller, the positioning device (time information acquisition device), the communication network communication I / F, and the wide area communication network communication I / F are arranged on the circuit board 35. As shown in FIGS. 42 and 43, the circuit board 35 is united by passing the four fourth screws 35e through the screw holes formed in the circuit board 35 and screwing them onto the boss of the unit cover 31-1. It is fixed in the cover 31-1.

Here, the height of the magnet 32d from the lead guide fixing portion 34 is about 100 mm for the first lead guide portion 32-1 and about 200 mm for the second lead guide portion 32-2, and the third lead guide portion 32- 3 is arranged at a position of about 300 mm, and the fourth reed guide portion 32-4 is arranged at a position of about 400 mm. When the height of the float portion 31 raised by the water level reaches the position of the magnet 32d, it corresponds to the magnet 32d. The reed SW35a operates and the microcontroller determines the water level. In this case, since the lead guide portion 32 is sandwiched from both sides by a pair of lead SW35a, even if there is a gap between the lead guide portion 32 and the guide groove 31 g of the float portion 31. , Either of the two sets of leads SW35a will operate. When the lead SW35a operates and detects a significant water level, the time information acquisition device of the positioning device acquires the detected time. In the water level gauge 3 of the third embodiment, when the water level is measured, the float portion 31 floats and does not submerge, so that the float portion 31 does not need to maintain airtightness and may withstand rainwater or the like. Therefore, it can be manufactured at low cost.
The height of the water level detected in the water level gauge 3 of the third embodiment can be changed by changing the height of the magnet 32d from the lead guide fixing portion 34, and the height of the four lead guide portions 32 can be changed. A plurality of magnets may be mounted in each lead guide portion 32, and the water level may be detected by the combination of the operated leads SW35a. In this way, it is possible to increase the water level that can be detected.

<Fourth Example>
Since the electrical configuration of the water level gauge 4 of the fourth embodiment of the present invention is the same as that of the water level gauge 1 of the first embodiment, the description thereof will be omitted, but the water level gauge 4 of the fourth embodiment is a micro. It is equipped with a controller, a sensor unit, a positioning device including a time information acquisition device, a warning display unit, a communication network communication I / F, and a wide area communication network communication I / F, and these are connected by a bus. It also has a power supply unit that supplies power to each unit. The detected water level information, the time information at which the water level was detected, and the position information of the water level gauge 4 of the fourth embodiment are transferred from the communication network communication I / F or the wide area communication network communication I / F to the information processing device at a predetermined timing. Will be sent. The information processing device has at least the function of creating a disaster prevention map that displays the flooded area. In addition, when a flood occurs at the installation position of the water level gauge 4 and the water level exceeds the specified level, the warning display unit is turned on to notify that the flood has occurred.

Next, the physical configuration of the water level gauge 4 according to the fourth embodiment of the present invention is shown in FIGS. 44 to 52. 44 (a) is a top view showing the configuration of the water level gauge 4 of the fourth embodiment, FIG. 44 (b) is a front view showing the configuration of the water level gauge 4 of the fourth embodiment, and FIG. 44 (c) is the fourth. A side view showing the configuration of the water level gauge 4 of the embodiment, FIG. 45 is a perspective view showing the configuration of the water level gauge 4 of the fourth embodiment, and FIG. 46 is an assembly showing the configuration of the water level gauge 4 of the fourth embodiment in a perspective view. FIG. 47 (a) is another assembly drawing showing the configuration of the water level gauge 4 of the fourth embodiment as a perspective view viewed from diagonally above the front, and FIG. 47 (b) is the configuration of the water level gauge 4 of the fourth embodiment. Is another assembly drawing showing the configuration of the water level gauge 4 of the fourth embodiment in a perspective view, FIG. 48 is still another assembly drawing showing the configuration of the water level gauge 4 of the fourth embodiment in a perspective view, and FIG. 49 is a water level gauge of the fourth embodiment. An assembly drawing showing the configuration of the float portion 41 in 4 in a perspective view, FIG. 50 is an assembly drawing showing the configuration of the float case in the water level gauge 4 of the fourth embodiment in a perspective view, and FIG. 51 is an assembly drawing showing the configuration of the float case in the fourth embodiment in a perspective view. FIG. 52 is a perspective view showing the configuration of the circuit board in the above, and FIG. 52 is an assembly drawing showing the configuration of the circuit board in the water level gauge 4 of the fourth embodiment in a perspective view.

By explaining the assembly of the water level gauge 4 of the fourth embodiment with reference to these figures, the configuration of the water level gauge 4 will be described below. The water level gauge 4 of the fourth embodiment according to the present invention is composed of a cylindrical vertically elongated support column 160 and a float portion 41 inserted through the support column 160. The support column 160 is formed of a columnar body having a length in the water level measurement direction that is already installed on the ground including the road, and the lower portion of the support column 160 is buried in the ground and fixed to the ground. The material of the support column 160 may be made of resin, metal, or other material. In the water level gauge 4 of the fourth embodiment, it is possible to provide the water level gauge 4 which does not need to consider the installation location where the water level can be measured with a simple configuration by using the existing structure regardless of the material as the support column 160. it can. As the support 160, for example, a columnar road accessory can be used.

In the water level gauge 4 of the fourth embodiment, as shown in FIGS. 44 (a) to 44 (c) and 45, a four-stage magnet sheet 43 is fixed to the outer peripheral surface of the existing support column 160 by sticking, adhesion, or the like. There is. The four-stage magnet sheet 43 has a predetermined width and is provided at a predetermined height from the ground 01. That is, the four magnet sheets 43 are arranged side by side in the water level measurement direction on the outer peripheral surface of the support column 160. A float portion 41 having a structure of floating on water is attached to a support column 160 provided with four magnet sheets 43 so as to sandwich the support column 160 with a flat plate-shaped backing plate 42, and the float portion 41 is attached to the support column 160. It is attached so that it can move freely up and down along the. As a result, the float portion 41 can be raised according to the water level at the installed position, and the height of the float portion 41 is detected by the four magnet sheets 43 and the lead SW47 built in the float portion 41, which will be described later. By doing so, the height of the water level is detected. That is, the sensor unit of the water level gauge 4 of the fourth embodiment is composed of a magnet sheet 43 and a reed SW47 built in the float unit 41.

As shown in FIG. 46, the starting plate 44 is inserted into the support column 160 from above, and the starting plate 44 is placed on the ground 01. A thin rod-shaped starting pin 44a is provided on the upper surface of the starting plate 44 so as to project. The starting plate 44 is made of a material having a specific gravity higher than that of water and does not float on water. Since the starting plate 44 is arranged below the float portion 41, it is arranged at the lowermost part of the support column 160. A four-stage magnet sheet 43 is fixed to the outer peripheral surface of the existing support column 160 by sticking, adhesion, or the like. The four-stage magnet sheet 43 has a ring shape with a predetermined width, and since the magnet sheet 43 functions in the same manner as the water level marker, each magnet sheet 43 is arranged at a predetermined height from above the ground 01. Magnet. Further, the magnet sheet 43 is made of a soft material, and can be fixed to the support column 160 by adhesion or the like without being influenced by the shape of the support column 160.
The insertion portion 41e of the float portion 41 is inserted into the support column 160 to which the four-stage magnet sheet 43 is fixed. As shown in FIG. 49, the float portion 41 is composed of a float case 41-1 and a float cover 41-2, and the fitting portion 41e formed in the float case 41-1 has a notch portion having a substantially pentagonal cross section. The front is open. From the opening of the fitting portion 41e, the support column 160 is fitted and inserted as shown in FIGS. 47 (a) and 47 (b).

Next, as shown in FIG. 49, the front wall 41c of the float case 41-1 is formed by being bent so as to have a pentagonal cross section to form the fitting portion 41e, and the opening of the fitting portion 41e is closed. As described above, the rectangular backing plate 42 is fixed to the front walls 41c on both sides of the fitting portion 41e. The float cover 41-2 constituting the float portion 41 is formed with punching portions 41g, which are rectangular recesses on both sides on the rear side, and is inserted into two holes formed in the front surface of the punching portion 41g. The two bolts 42c are inserted into the holes formed in the front wall 41c of the float case 41-1, and the second nut 42b is screwed into the respective bolts 42c. Further, the two bolts 42c are inserted into the holes formed on both sides of the backing plate 42, and the first nut 42a is screwed into each. As a result, the float portion 41 can be attached so as to be movable up and down along the support column 160. It is conceivable that the outer diameter of the support column 160 has various outer diameters because the support column 160 is already installed. Therefore, by adjusting the screwing position of the second nut 42b with respect to the bolt 42c and the number of the second nuts 42b, the gap between the support column 160 and the fitting portion 41e of the float portion 41 is adjusted. As a result, the distance between the magnet sheet 43 and the lead SW47b incorporated in the float portion 41, which will be described later, is adjusted.

As shown in FIG. 49, the float portion 41 is fixed to the float case 41-1 by attaching the float cover 41-2 from the rear side by welding, adhesion, or the like. A circuit board 46 (not shown), which will be described later, is housed in the float case 41-1. The resin float case 41-1 includes a front wall 41c that connects the upper surface plate 41a and the lower surface plate 41b, and the upper surface plate 41a and the lower surface plate 41b. It is formed. Rectangular partition plates 41d are formed on both sides of the lower portion of the front wall 41c on the front side, and the float 45 is inserted into the space between the partition plate 41d and the lower surface plate 41b and fixed by sticking or adhesion. Rectangle. The float 45 is formed in a bent shape that matches the shape of the front wall 41c by a buoyant material such as a foaming material. An insertion hole 41f is formed substantially in the center of the bottom plate 41b, and an insertion groove 45a is formed substantially in the center of the float 45. The float cover 41-2 has a pentagonal cross section, and 41 g of punched portions, which are rectangular recesses, are formed on both sides of the float cover 41-2.

As shown in FIG. 50, the circuit board 46 is housed and fixed in the float case 41-1. The circuit board 46 is formed in a bent shape that matches the shape of the front wall 41c, and is a battery 47a, a lead SW47b, a light emitting unit 47c, and a solar panel, which are secondary batteries such as a nickel hydrogen battery and a lithium ion battery. A 47d, an antenna 47e, and an elongated rod-shaped starting SW46b are provided. Further, although not shown, a microcontroller, a positioning device (time information acquisition device), a communication network communication I / F, and a wide area communication network communication I / F are arranged on the circuit board 46. The circuit board 46 floats by inserting each of the three screws 46a into the three holes formed in the circuit board 46 and screwing them into a boss (not shown) formed inside the top plate 41a. It is fixed in the case 41-1.

As shown in FIGS. 51 and 52, two solar panels 47d are provided on both sides of the circuit board 46, two batteries 47a are provided between them, and four light emitting portions 47c are provided along the outer peripheral edge. It is provided so as to face outward at approximately equal intervals with an interval. Since the light emitted from the light emitting unit 47c is emitted through the float cover 41-2, the float cover 41-2 is made of a light-transmitting resin. The lead wires drawn from each solar panel 47d and each battery 47a are soldered to the circuit board 46. The float case 41-1 is preferably made of a light-transmitting resin so that the solar panel 47d can generate electricity efficiently, and the two batteries 47a are charged by the electromotive force of the two solar panels 47d. Become. Since the solar panels 47d are installed so as to face each other, it is possible to eliminate the need to consider the direction of sunshine. The light emitting unit 47c is composed of an LED or the like. The lead wire drawn from the end of the light emitting portion 47c is soldered to the circuit board 46. The light emitting unit 47c constitutes a warning display unit, and when the float unit 41 rises above the specified water level, the light emitting unit 47c emits light and irradiates the vicinity of the water surface boundary to improve the visibility of the water surface. To. Further, if the light emitting portion 47c that illuminates the support column 160 is provided, the visibility from a distance and the visibility of the support column 150 itself are improved.

A set of four leads SW47b are provided on the back surfaces of the ends on both sides of the circuit board 46 in a stepped manner with their heights slightly offset from each other, and an antenna 47e is provided on the back side of one end. The lead SW47b is arranged on the circuit board 46 so as to be close to the inner surface of the float case 41-1, and is turned on when the lead SW47b is close to the magnet sheet 43 attached to the support column 160. Since the magnet sheet 43 uses a general-purpose material that repeats S poles / N poles in the circumferential direction, the lead SW47b also has electrodes formed parallel to the circumferential direction. Further, by arranging the leads SW47b by shifting them up and down in a stepwise manner, it is possible to improve the resolution of the water level as in the case shown in the water level gauge 2 of the second embodiment. The mounting portion of the antenna 47e is soldered to the circuit board 46 and has a plate shape that widens diagonally downward from the mounting portion. The antenna of the positioning device (time information acquisition device) and the communication network communication I / The antennas of the F and the wide area communication network communication I / F are integrated into one.

Further, the starting SW46b is a mechanical push switch, and the starting SW46b is located in the insertion hole 41f of the lower surface plate 41b of the float case 41-1 via the insertion groove 45a of the float 45. The start-up SW46b can be turned on / off by the start-up pin 44a, and when there is no water at the position where the water level gauge 4 of the fourth embodiment is installed, the start-up pin 44a is moved through the insertion hole 41f by the weight of the float portion 41. The start SW46b is pushed to turn it off, and power is not supplied to each part on the circuit board 46. When the water level at the position where the water level gauge 4 of the fourth embodiment is installed rises, the float portion 41 floats on the water and the activation pin 44a separates from the activation SW46b, so that the activation SW46b is turned on and the power supply is supplied to each part on the circuit board 46. The water level will be detected. As a result, power saving can be achieved.

Here, the height of the four-stage magnet sheet 43 is about 100 mm for the first-stage magnet sheet 43, about 200 mm for the second-stage magnet sheet 43, about 300 mm for the third-stage magnet sheet 43, and the fourth-stage magnet sheet 43. The magnet sheet 43 is arranged at a position of about 400 mm, and when the height of the float portion 41 raised by the water level reaches the position of the magnet sheet 43, the lead SW47b corresponding to the magnet sheet 43 operates and the microcontroller operates. , Judge the water level. That is, in the water level gauge 4 of the fourth embodiment, it is possible to detect that the water level has reached about 100 mm, about 200 mm, about 300 mm, and about 400 mm. In this case, since the magnet sheet 43 is sandwiched between two sets of reeds SW47b, either reed SW47b operates even if there is a gap between the magnet sheet 43 and the float portion 41. Will come to do. When the lead SW47b operates and detects a significant water level, the time information acquisition device of the positioning device acquires the detected time. In the water level gauge 4 of the fourth embodiment, when the water level is measured, the float portion 41 floats and does not submerge, so that the float portion 41 does not need to maintain airtightness and may withstand rainwater or the like. Therefore, it can be manufactured at low cost.
The height of the water level detected in the water level gauge 4 of the fourth embodiment can be changed by changing the height of the magnet sheet 43.

In the water level gauge 4 of the fourth embodiment, the water level gauge 4 can be configured by attaching the float portion 41 to the existing support column 160. If the support column 160 to be attached to the float portion 41 is a columnar body, the shape of the fitting portion 41e of the float portion 41 or the like can be adjusted according to the cross-sectional shape without specifying the material such as resin metal and the cross-sectional shape. Just by changing it, it can function as a water level gauge 4 that electrically detects the water level. Further, when attaching the float portion 41 or the magnet sheet 43, it is not necessary to modify the existing support column 160. Therefore, if the support column 160 is a columnar object having a length in the water level measurement direction, the float portion 41 is attached. Can be targeted.

<Fifth Example>
FIG. 53 shows a functional block diagram showing the electrical configuration of the water level gauge 5 according to the fifth embodiment of the present invention.
The water level gauge 5 of the fifth embodiment shown in FIG. 53 includes a microcontroller 210, a positioning device 212 including a time information acquisition device, a warning display unit 213, a communication network communication I / F214, and a wide area communication network communication I / F215. These are connected by a bus. It also includes a power supply unit 216 that supplies power to each unit. The power supply unit 216 includes a power supply Vcc composed of a battery and a power supply switch SW. The microprocessor 210 is a control means for controlling the operation of the water level gauge 5, and the positioning device 212 also functions as a sensor means for detecting the water level. Specifically, the positioning device 212 that receives radio waves from satellites for positioning determines positioning information such as position and altitude. The positioning information is information on the position and altitude of the float unit 51, which will be described later, which incorporates the positioning device 212. Therefore, the microprocessor 210 can detect the water level from the altitude information. In this case, positioning can be performed in cm units by using a LEX (L-band experiment) signal that can improve the positioning accuracy and reliability for GPS reinforcement. In this way, the positioning device 212 also serves as a sensor means for detecting the water level.

The microcontroller 210 acquires the position information and the water level information of the point where the water level gauge 5 is installed from the positioning device 112, and also takes in the time when the water level is detected from the time information acquisition device to obtain the position information and the time information. Write the water level information with the mark to the internal temporary memory. It also gets and writes to temporary memory. In this case, the position information of the water level gauge 5 is the position information measured by the position positioning device 212 using GPS or the like, or the position information directly input. Further, it is preferable that the SW of the power supply unit 216 is automatically turned on when the water level at the installation position of the water level gauge 5 becomes a significant water level or higher, and when it is turned on, the water level gauge 5 is initialized. .. After the initialization, the water level gauge 5 starts an operation such as detecting the water level.

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 gauge 5 are transmitted from the communication network communication I / F214 or the wide area communication network communication I / F215 to the information processing device at a predetermined timing. To. The information processing device has at least the function of creating a disaster prevention map that displays the flooded area. Further, when a flood occurs at the installation position of the water level gauge 5 and the water level exceeds the specified level, the warning display unit 213 is turned on to notify that the flood has occurred. The light from the light emitting unit of the warning display unit 213 can be applied to the water surface to illuminate the vicinity of the water surface boundary, and the visibility of the water surface can be improved. Further, the light of the light emitting unit of the warning display unit 213 is irradiated from the inside of the water level gauge 5 to the outside, and it is possible to improve the visibility from a distance and the visibility of the water level gauge 5.

Next, the physical configuration of the water level gauge 5 according to the fifth embodiment of the present invention is shown in FIGS. 54 to 58. 54 is a perspective view showing the configuration of the water level gauge 5 of the fifth embodiment, FIG. 55 is a perspective view showing the configuration of the float portion 51 in the water level gauge 5 of the fifth embodiment, and FIG. 56 (a) is the fifth embodiment. FIG. 56 (b) is a perspective view showing an assembly drawing of the float portion 51 of the water level gauge 5 of the above, and FIG. 56 (b) is a perspective view showing an assembly drawing of the float portion 51 of the water level gauge 5 of the fifth embodiment. FIG. 57 is a perspective view showing an assembly drawing of the unit case in the water level gauge 5 of the fifth embodiment, and FIG. 58 is a perspective view showing an assembly drawing of the circuit board 54 in the water level gauge 5 of the fifth embodiment. ..

By explaining the assembly of the water level gauge 5 of the fifth embodiment with reference to these figures, the configuration of the water level gauge 5 will be described below. The water level gauge 5 of the fifth embodiment according to the present invention is composed of a vertically elongated column 170 having a taper shape whose diameter decreases toward the top, and a float portion 51 inserted through the column 170. The column 170 is formed of a columnar body having a length in the water level measurement direction that is already installed on the ground including the road, and the lower portion of the column 170 is buried in the ground and fixed to the ground. The material of the support column 170 may be resin, metal, or other material. In the water level gauge 5 of the fifth embodiment, an existing structure regardless of the material can be used as the support column 170, and the float portion 51 can be simply attached to the support column 170, and the water level can be measured. It is possible to provide a water level gauge 5 that does not require consideration of the location. As the support 170, for example, a columnar road accessory can be used.

In the water level gauge 5 of the fifth embodiment, as shown in FIG. 54, a float portion 51 having a structure of floating on water is fitted into the existing tapered column 170, and the float portion 51 is the column 170. It becomes possible to move freely up and down along. As a result, the float portion 51 can be raised according to the water level at the installed position, and the height (elevation) of the float portion 51 is acquired by the positioning device 212 to detect the height of the water level. ing.

As shown in FIG. 56, the float portion 51 is composed of a donut-shaped float case 53 and a unit case 52 having substantially the same diameter, and the float portion 51 is provided with an insertion hole through which a support 170 can be inserted. Have.
As shown in FIGS. 57A and 57B, the unit case 52 is fixed to the upper surface of the float case 53 by welding, adhesion, or the like. A first insertion hole 52e having a predetermined inner diameter is formed substantially in the center of the unit case 52, and a second insertion hole 53b having an inner diameter larger than that of the first insertion hole 52e is formed substantially in the center of the float case 53. .. A cylindrical portion 53a for forming the second insertion hole 53b is erected substantially in the center of the lower surface of the float case 53, and the float 56 is inserted into the space between the outer wall of the float case 53 and the cylindrical portion 53a. It is fixed by sticking or adhesion. The float 56 is made of a buoyant material such as a foaming material formed in a donut shape. As a result, the float portion 51 has a structure that floats on water. Further, a cylindrical portion 52c described later for forming the first insertion hole 52e is erected substantially in the center of the lower surface of the unit case 52, and is illustrated in the space between the outer wall of the unit case 52 and the cylindrical portion 52c. Although not, the circuit board 54 and the like, which will be described later, are stored. A substantially circular lid portion 52b having a first insertion hole 52e formed in the center thereof is fitted to the upper surface of the unit case 52 and fixed by welding, adhesion, or the like. Four drain holes 52f are formed at intervals of about 90 ° along the outer peripheral edge of the lower surface of the unit case 52, and four drain holes 53c are spaced at intervals of about 90 ° along the outer peripheral edge of the lower surface of the float case 53. It is made of water so that the water that has entered the inside can be drained.

As shown in FIG. 57, the unit case 52 is composed of a cylindrical main body portion 52a in which the upper surface is opened and the lower surface is closed, in which a cylindrical portion 52c for forming the first insertion hole 52e is formed. Two bosses 52d having a predetermined height with 52c in between are formed along the cylindrical portion 52c. The space between the cylindrical portion 52c and the outer wall of the main body portion 52a is used as a storage space, and the circuit board 54 is stored in the storage space. The circuit board 54 includes a positioning antenna 55a, a communication antenna 55b, a solar panel 55c having a shape in which a part of a cylinder is cut out, and a battery 55d which is a secondary battery such as a nickel hydrogen battery or a lithium ion battery. , A light emitting unit 55f composed of LEDs and the like constituting the warning display unit 213 is arranged. Further, although not shown, a microcontroller, a positioning device (time information acquisition device), a communication network communication I / F, and a wide area communication network communication I / F are arranged on the circuit board 54. The circuit board 54 is fixed in the unit case 52 by inserting two mounting screws 55e into each of the two holes formed in the circuit board 54 and screwing them into each of the bosses 52d. Then, a substantially circular lid portion 52b having a first insertion hole 52e formed in the center of the upper surface of the unit case 52 is fitted and fixed by welding, adhesion, or the like. As a result, the unit case 52 can be assembled.

As shown in FIG. 58, the circuit board 54 has a circular shape having a circular hole in the center thereof, and on the surface of the circuit board 54, a positioning antenna 55a stacked in three stages and a plate shape are formed. The communication antenna 55b of the above is provided. The positioning antenna 55a is configured by stacking antennas that receive the L1 signal, L2 signal, and L6 signal for LEX from the satellite in descending order of frequency, and the communication antenna 55b is configured with the communication network communication I / F214. The antenna of the wide area communication network communication I / F 215 is integrated into one. The lead wires drawn from the positioning antenna 55a and the communication antenna 55b are soldered to the circuit board 54. A battery 55d and a substantially cylindrical solar panel 55c are provided on the back surface of the circuit board 54. The lead wires drawn from the battery 55d and the solar panel 55c are soldered to the circuit board 54.

Two light emitting portions 55f are provided on the circuit board 54 so as to face each other at an interval of approximately 180 °. Since the light emitted from the light emitting unit 55f is emitted through the unit case 52, the unit case 52 is made of a light-transmitting resin. As a result, the solar panel 55c also efficiently generates electricity, and the battery 55d is charged by the electromotive force of the solar panel 55c. Since the solar panel 55c has a substantially cylindrical shape, it is possible to eliminate the need to consider the direction of sunshine regardless of the position of the float portion 51. The light emitting unit 55f is composed of an LED or the like. The lead wire drawn from the end of the light emitting portion 55f is soldered to the circuit board 54. The light emitting unit 55f constitutes a warning display unit 213, and when the float unit 51 rises above the specified water level, the light emitting unit 55f emits light and irradiates the vicinity of the water surface boundary to improve the visibility of the water surface. Will be done. Further, the support column 170 is illuminated by the light emitting unit 55f to improve the visibility from a distance and the visibility of the support column 170 itself.

In the water level gauge 5 of the fifth embodiment, when the water level is measured, the float portion 51 floats and does not submerge, so that the float portion 51 does not need to maintain airtightness and may withstand rainwater or the like. Therefore, it can be manufactured at low cost. In the water level gauge 5 of the fifth embodiment, it is possible to detect that the water level has reached about 100 mm, about 200 mm, about 300 mm, and about 400 mm, and it is possible to detect the water level in cm units. Further, in the water level gauge 5 of the fifth embodiment, since there is no restriction on the distance between the insertion hole of the float portion 51 and the support column 170, the tapered support column 170 can be the attachment target of the float portion 51, and the taper If the support is in the shape of 170, the gap between the float portion 51 and the support 170 becomes large when the float portion 51 is lifted. Therefore, even if dust or the like is caught in the gap at the bottom, when buoyancy is generated in the float portion 51, the direction in which the load is not applied is the ascending direction of the float portion 51, so that the water level measurement function is not hindered. Will be.

<Application example>
FIG. 59 shows a functional block diagram showing a configuration of a warning system 300 to which the water level gauges 1 to 5 of the first to fifth embodiments of the present invention can be applied. The warning system 300 has at least a function of detecting flooding and displaying a warning at a flooded point and a point where there is a risk of flooding, and a function of creating a disaster prevention map displaying areas related to flooding. There is.
The warning system 300 shown in FIG. 59 includes an information processing device 301 and a plurality of closed communication networks 350-1 to 350-k, and the information processing device 301 and the plurality of closed communication networks 350-1 to 350-k. They are connected by a wide area communication network 310 consisting of an Internet communication network and a public communication network.
The closed area communication network 350-1 to 350-k is installed in each predetermined area, and in the illustrated example, the closed area communication network of k is installed. The disaster prevention map can be created for each predetermined area, and by connecting the disaster prevention maps of a plurality of areas, it is possible to create a disaster prevention map covering a plurality of predetermined areas. The closed communication network is a communication network that uses a dedicated communication line, and is a communication network that can prevent data from being intercepted or tampered with on the way.

The closed communication network 350-1 is equipped with a master unit 320-1, and n water level gauges A of 330-1 to 330-n and m units of 331 to 1-331-m installed in a predetermined area. The water level gauge B and the water level gauge B belong to the closed communication network 350-1. The master unit 320-1 is connected to n water level gauges A and m water level gauges B belonging to the closed area communication network 350-1 by wireless closed area communication. The water level gauge A and the water level gauge B have the same configuration, and the water level gauges 1 to 5 of the first to fifth embodiments of the present invention can be applied to the water level gauge A or the water level gauge B. In this case, the communication network communication I / F corresponds to the closed communication network. The water level gauge A and the water level gauge B detect the water level at the point where the sensor unit is installed and acquire the position information at the point where the positioning device is installed while the power is turned on. .. Then, the detected water level information, the time information at which the water level was acquired, and the position information of the installed point are transmitted to the master unit to which the own unit 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) for each water level gauge A and each water level gauge B, but a unique ID should be given to each water level gauge A and each water level gauge B. It may be. Further, when the sensor unit detects a significant water level exceeding the specified water level, the warning display unit including the light emitting unit emits light to warn that the water has been flooded at the installed point. In this case, the light of the light emitting portion of the warning display unit is irradiated to the water surface to illuminate the vicinity of the water surface boundary, and the visibility of the water surface can be improved. Further, when the light of the light emitting portion of the warning display unit is irradiated from the inside of the water level gauge A or the water level gauge B to the outside, the visibility from a distance and the visibility of the water level gauge A or the water level gauge B can be improved. It will be possible.

The above description is for the closed communication network 350-1, but since the same applies to the closed communication networks 350-2 to 350-k, the description of the closed communication networks 350-2 to 350-k will be omitted. ..
Here, the water level gauge A and the water level gauge B will be described. The water level gauge A and the water level gauge B have the same configuration, but the state of the installation point is different. Specifically, even if the water level exceeds the specified level at the point where the water level gauge A is installed and flooding occurs, the flooding does not occur immediately at the point 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 possibility of flooding at the point where the water level gauge B is installed increases. Therefore, when the water level exceeds the specified level at the point where the water level gauge A is installed, the warning display unit including the light emitting part of the water level gauge B is made to emit light to warn that there is a risk of flooding at the point where the water level gauge A is installed. 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 was acquired are transmitted to the master unit at predetermined time intervals, and the master unit transmits the received water level information and the time information at which the water level was acquired to the information processing device 301 over a wide area. It is transmitted via the communication network 310. The information processing device 301 detects that the water level of the received water level gauge A is equal to or higher than the specified water level, and causes the water level gauge B belonging to the closed communication network to which the water level gauge 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 transmitted from the water level gauge A and the water level gauge B, the time information obtained by acquiring the water level, and the position information of the installed point in the database, respectively. However, each piece of information is stored in association with an ID such as the MAC address of the water level gauge A and the water level gauge B. Therefore, the information processing apparatus 301 detects the water level gauge B belonging to the closed communication network to which the water level gauge A having reached the specified water level or higher belongs 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 master unit that has received the warning display instruction information transmits the warning display instruction information to the water level gauge B belonging to the own unit. Upon receiving the warning display instruction information, the water level gauge B causes the warning display unit including the light emitting unit of its own device to emit light based on the warning display instruction information. As a result, the water level gauge B can warn in advance that there is a risk of flooding.

FIG. 60 shows an example of the installation points of the water level gauge A and the water level gauge B. In the example shown in FIG. 60, the water level gauge A is installed on the riverbed between the river R and the main bank H, the master unit T is installed on the main bank H, and the water level gauge B is installed on the main bank H and the haze. It is installed between the embankment, the surrounding embankment, and the embankment K of the ring middle embankment. Then, when the water level of the river R rises due to heavy rain or the like 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 installation point of the water level gauge B. When the water level of the river R rises further and the water exceeds the main bank H, flooding will occur even at the installation point of the water level gauge B. In the water level gauge B, since the warning display unit emits light when flooding occurs at the installation point of the water level gauge A, the warning display of flooding can be performed in advance.
The information processing device 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 points of the water level gauge A and the water level gauge B are not limited to the positions shown in FIG. 60, and the water level gauge installed at a point where the altitude is low and easily flooded is regarded as the water level gauge A, which is higher than the installation point of the water level gauge A. The water level gauge installed at the point may be used as the water level gauge B.

The water level gauge according to the embodiment of the present invention described above is configured by inserting a float portion into a columnar column so that the float portion can move freely along the column in the water level measurement direction, and the float portion floats on water. It is said to be a structure. Therefore, the water level at the installation point is detected by detecting the height of the float portion 13 floating in the water. Therefore, the water level gauge according to the embodiment of the present invention can have a simple structure and can reduce the cost. As described above, since the water level gauge according to the embodiment of the present invention has a simple structure, it is possible to use an inexpensive water level gauge, which requires a large number of installations, such as inland water flooding and the inside of a haze embankment. It is possible to reduce the cost of dealing with the inundation of external water. Further, the water level gauge according to the embodiment of the present invention can use an existing columnar body for a road, a revetment, or the like, and can further reduce the installation cost. In the water level gauge according to the embodiment of the present invention, it is possible to use an existing utility pole, a street light, or the like as a support column to which the float portion is attached, and it is also possible to install it in a place where flooding is likely to occur. , It can be placed in places where there is a risk of flooding, and real-time cooperation with a disaster prevention map that displays the flooded area is also possible.
In the water level gauge according to the embodiment of the present invention described above, the cross-sectional shape of the columnar column is shown as substantially circular, but the column may be a prism and the cross-sectional shape is not limited to circular. The shape of the float portion may be deformed according to the shape of the support column. Further, the configuration using the lead SW and the magnet in the water level gauge 1 of the first embodiment in which the power is automatically supplied when the water level at the installation point becomes a significant water level or higher, or the water level of the fourth embodiment. The configuration of the start pin and the start SW in the total 4 may be provided in the water level gauge 2 of the second embodiment, the water level gauge 3 of the third embodiment, and the water level gauge 5 of the fifth embodiment. Further, the five-stage water absorption sheet in the water level gauge 2 of the second embodiment may be replaced with a conductor such as a five-stage metal tape having the same shape.

01 Ground, 1-5 water level gauge, 10 columns, 11 caps, 11a cap collars, 12 column bases, 12a drain holes, 12b insertions, 12c cylindrical grooves, 12d arcuate walls, 12e drainage channels, 12f ring-shaped recess, 12g ring magnet, 13 float part, 13-2 float cover, 13-1 float case, 13b insertion wall, 13c thread part, 13d peripheral wall part, 13e circuit board, 13f screw hole, 13g first screw, 13h lead SW, 13i insertion hole, 15 ring-shaped conductor part, 15 tubular base part, 15a first conductor part, 15b second conductor part, 15c third conductor part, 15e fourth conductor part, 16 internal strut, 16a Folded part, 16b gap, 17 light emitting part, 17a first light emitting part, 17b second light emitting part, 17c first solar panel, 17d second solar panel, 17e second screw, 18-1a to 18-1c sensor conductor, 18 -2 Lead wire, 18a 1st sensor, 18b 2nd sensor, 18c battery, 18d antenna, 20 float part, 21 sensor conductor, 21 float unit, 21-1 unit case, 21-2 unit cover, 21 lead wire, 21 -1a to 21-1c sensor conductor, 21-2a to 21-2c sensor conductor, 21a peripheral wall, 21b insertion wall, 21c circuit board, 21c standing piece, 21d first screw, 21e first sensor, 21f second sensor , 21g antenna, 21h battery, 21i second screw, 21j insertion wall, 21k peripheral wall, 22 float base, 22a base body, 22a through hole, 22b through hole, 22c ring-shaped fixing part, 22d ring-shaped float, 23 adjustment bolt , 23a 2nd nut, 24 water absorption sheet, 24a 1st water absorption sheet, 24b 2nd water absorption sheet, 24c 3rd water absorption sheet, 24d 4th water absorption sheet, 24e 5th water absorption sheet, 24f suction part, 25 retaining metal fittings, 25a screw , 25b 1st nut, 27a light emitting part, 27b circuit board, 27c solar panel, 31 float part, 31-1 unit cover, 31-2 unit case, 31-3 float, 31a 1st peripheral wall part, 31b insertion Wall, 31c drain hole, 31d second peripheral wall, 31e insertion wall, 31g guide groove, 31h first screw, 32 lead guide, 32a guide body, 32b mounting surface, 32c groove, 32d magnet, 32e third screw, 33 fixing band, 33a, 33b band piece, 33c second screw, 33d nut, 33e insertion part, 34 lead guide fixing part, 34a screw, 35 circuit board, 35a lead SW, 35b solar panel, 35c battery, 35d light emitting part, 35e 4th screw, 35g antenna, 41 float part, 41-1 float case, 41-2 float cover, 41a top plate, 41b bottom plate, 41c front wall, 41d plate, 41e fitting part, 41f insertion hole, 41g extraction Part, 42 backing plate, 42a 1st nut, 42b 2nd nut, 42c bolt, 43 magnet sheet, 44 starting plate, 44a starting pin, 45 float, 45a insertion groove, 46 circuit board, 46a screw, 46b starting SW, 47a Battery, 47b lead SW, 47c light emitting part, 47d solar panel, 47e antenna, 51 float part, 52 unit case, 52a main body part, 52b lid part, 52c cylindrical part, 52d boss, 52e first insertion hole, 52f drain hole , 53 float case, 53a cylindrical part, 53b second insertion hole, 53c drain hole, 54 circuit board, 55a positioning antenna, 55b communication antenna, 55c solar panel, 55d battery, 55e mounting screw, 56 float, 110 Microcontroller, 111 sensor unit, 112 positioning device, 113 warning display unit, 114 communication network communication I / F, 115 wide area communication network communication I / F communication, 116 power supply unit, 150 columns, 150a column base, 160 columns, 170 Prop, 210 Microcontroller, 212 Positioning device, 213 Warning display, 214 Communication network communication I / F, 215 Wide area communication network communication I / F, 216 Power supply, 300 Warning system, 301 Information processing device, 310 Wide area communication Network, 320 master unit, 350 closed communication network

Claims (15)

A water level gauge that can be installed on the ground including roads
The pillars installed on the ground and
A float portion that is fitted into the support column and floats on water so as to have a height corresponding to the water level at the installation position, and has at least a light emitting portion and a sensor means for detecting the height inside.
Consists of
The water level was detected by the sensor means based on the height of the float portion, and when a water level equal to or higher than the specified water level was detected, the light emitting portion was made to emit light, and flooding occurred at the installation position. It is informed,
A plurality of ring-shaped conductor portions having a predetermined width are provided at predetermined intervals from the lower end to the upper end of the peripheral surface of the support column, and the sensor means is in the height direction for detecting that it faces the plurality of conductor portions. A water level gauge composed of a plurality of sensor conductors arranged at predetermined intervals, and detecting a water level by a combination of the plurality of sensor conductors that have detected that they face the plurality of conductor portions. The water level gauge according to claim 1, wherein the light emitted from the light emitting portion is irradiated around the float portion. The water level gauge according to claim 1 or 2, wherein the support column is a flexible and recoverable support column. The strut is fixed to a strut base portion installed on the ground, and a battery for supplying power to each portion and a reed switch for turning on the power are housed inside the float portion. The water level gauge according to any one of claims 1 to 3 , wherein the reed switch is turned off when the height of the float portion is the lowest position by the magnet means provided in the portion. The water level gauge according to any one of claims 1 to 4, wherein the support column is an existing support column as a road accessory. A plurality of ring-shaped conductor portions having a predetermined width are provided at predetermined intervals from the lower end to the upper end of the peripheral surface of the support column, and the sensor means is in the height direction for detecting that it faces the plurality of conductor portions. In the two sensor units that have detected that two sensor units having a plurality of sensor conductors arranged at predetermined intervals are offset from each other by a predetermined distance in the height direction and face the plurality of conductor units. The water level gauge according to any one of claims 1 to 5, wherein the water level is detected by a combination of the plurality of sensor conductors. The invention according to any one of claims 1 to 6 , wherein the float portion is provided with an adjusting bolt for adjusting the distance between the insertion hole of the float portion through which the support column is inserted and the support column. Water level gauge. A water level gauge that can be installed on the ground including roads
The pillars installed on the ground and
A float portion that is fitted into the support column and floats on water so as to have a height corresponding to the water level at the installation position, and has at least a light emitting portion and a sensor means for detecting the height inside.
Consists of
The water level was detected by the sensor means based on the height of the float portion, and when a water level equal to or higher than the specified water level was detected, the light emitting portion was made to emit light, and flooding occurred at the installation position. Be notified
A plurality of elongated reed guide portions having magnets provided inside are fixed to the outer peripheral surface of the support column, and the float portion is fitted into the support column to which the plurality of lead guide portions are fixed, and the sensor means. Is composed of a plurality of reed switches operated by the magnets for each lead guide unit, and the magnets are provided at different positions for each lead guide unit to correspond to the reed switches in the operating state. The water level is detected ,
The float portion inserted through the support column is provided with a notch that can be inserted into the support column, and a backing plate that closes the notch is fixed to the float portion. A water level gauge characterized in that the distance between the two can be adjusted according to the size of the support column . A plurality of ring-shaped magnet sheets having a predetermined width are provided at predetermined intervals from the lower end to the upper end of the outer peripheral surface of the support column, and the sensor means is in the height direction for detecting that the magnet sheets face the plurality of magnet sheets. The eighth aspect of the present invention, wherein the water level is detected by a combination of the plurality of reed switches which are composed of a plurality of reed switches arranged in a staggered manner and which have detected that they face the plurality of magnet sheets. Water level gauge. A start plate having a start pin is fitted at the lower end of the support column, and a battery for supplying power to each part and a start switch for turning on the power are housed inside the float portion. The water level gauge according to claim 9 , wherein the start switch is turned off when the height of the float portion is the lowest position by the start pin provided with the above. The water level gauge according to any one of claims 8 to 10, wherein the support column is an existing support column as a road accessory. The float unit internally includes a positioning means for positioning an installed position, a time acquisition means for acquiring time information, and a communication means.
The communication means adds the position information acquired by the positioning means and the information of the time when the water level is detected acquired by the time acquisition means to the water level information detected by the sensor means and transmits the information. The water level gauge according to claim 1 or 8 , wherein the water level gauge can be used. With multiple closed communication networks,
An information processing device connected to the closed communication network by a communication network,
With
Each of the closed communication networks includes a master unit and a plurality of water level gauges according to claim 12 , which belong to the master unit, and each water level gauge includes information on the detected water level and information on the time when the water level is acquired. , The position information of the installed point is transmitted to the master unit to which the own unit belongs by the communication means, and the master unit sends the received water level information and the time information at which the water level is acquired to the information processing device. The information processing device is a communication system capable of creating a disaster prevention map in which at least a flooded area is displayed based on the received water level information, the position information, and the time information. When the information processing device detects a water level above the specified water level in the water level gauge in the closed communication network, the water level above the specified water level is detected in the master unit to which the water level gauge belongs. The communication system according to claim 13 , wherein the water level gauge transmits instruction information for causing the light emitting unit to emit light. The water level gauges in the closed communication network are the first water level gauge installed between the main bank and the river, and the second water level gauge installed between the other bank except the main bank and the main bank. The present invention is characterized in that, when a water level equal to or higher than a specified water level is detected from the first water level gauge, the light emitting portion of the second water level gauge is made to emit light. 14. The communication system according to 14.

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