JP2012207396A - System to display dangerous place in time of water disaster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display an existence of a submerged dangerous place such as an open manhole or a side ditch during occurrence of water disaster such as a flood or concentrated heavy rain.SOLUTION: A display block 10 displays a position of a dangerous place by being floated on a water surface as a water level rises. An anchoring block 20 anchors the display block 10 on the water surface around a structure as the water level rises. A power generation block 30 generates operating power by water current flooding around the structure and supplies the display block 10 with the operating power through the anchoring block 20. The display block 10 displays an existence of the dangerous place through a visible display or an audible display using the operating power supplied by the power generation block 30.

Description

  The present invention relates to a disaster detection technique, and more particularly to a flood hazard location display technique for displaying a hazard location that has occurred during a flood.

When carrying out construction work on manholes, ditches and riverbanks on the road, it is generally required to install safety lights / lights, bulletin boards, safety cones, moving / fixed fences, etc. under certain conditions as security facilities. It has been.
There are systems that present dangerous spots in the event of an accident or disaster, informing the rise or discharge of water levels in first-class rivers or dams, but these systems are alarm devices by large-scale facilities, and each dangerous place is identified in an urban area. It is not something to detect.

On the other hand, for the purpose of preventing runoff during torrential rain, a manhole cover with a hinge is proposed (see, for example, Patent Document 1). It has a high-functional structure that is easy to open and close the manhole cover with a lock or hinge, so that it can be removed from the manhole, and even if it is removed, it is actually installed. Most of the manhole covers are traditional round or square cast iron plates on the top of the manhole with grooves.
In addition, there are cases where the gutters and riverbanks have lids and fences, but there are also places where there are no small things that stand out.

JP 2001-152473 A

  If it is a normal construction work, present the dangerous location at the above-mentioned security facility, etc., so that you can predict the danger in advance when moving outdoors and pay sufficient attention when approaching. Can be reduced. However, it is difficult to establish such a facility at the time of a disaster such as flood, and even if such a facility is installed after the occurrence of flood, it may be washed away by water pressure, etc. And location becomes difficult.

When concentrated heavy rains that record a large amount of precipitation in a short time occur, especially in urban areas, the absorption of rainwater on the ground surface cannot catch up, and it passes through paved roads, rainwater channels, sewers and other underground water systems, A large amount of rainwater or other water flows from the high place to the low place or depression. As a result, the rainwater cannot be sufficiently treated, and flooding such as inundation occurs.
At this time, in the sewage pipes etc. in the basement, the amount of water suddenly increases, and water pressure is generated so as to push up the lid of the lower manhole due to rainwater that could not be treated and lost its destination. For this reason, there is a dangerous situation in which there are manholes with an open or displaced lid under the surface of the water. However, these places of danger cannot be visually observed due to water turbidity, and there is a danger during evacuation.

Also, if the entire outdoor area is covered with turbid water, it will be difficult to identify the location of an unclear river bank, usually without a lid on the side of the road, etc. There are dangers when evacuating or moving outdoors.
Furthermore, even if the water level is higher than these heights for a step such as a sidewalk that can specify the positional relationship such as a gutter, a fence, a guardrail, or the like, there is a danger at the time of evacuation or outdoor movement.

  The purpose of this system is to provide a flood hazard location display technology that displays a flooded location such as a manhole or a side ditch that has been submerged in the event of a flood, such as flooding or torrential rain.

  In order to achieve such an object, the flood hazard point indication system according to the present invention is attached to a structure that can be a danger point when a flood occurs, and responds to an increase in the level of water that has flowed out around the structure. A system for displaying the location of a hazardous location in the event of a flood, and a display block that rises to the surface of the water as the water level rises and displays the presence of the hazardous location, and the water flow around the structure In response to the rise in water level, the power generation block that generates operating power and the holding of the display block held in advance are released, and the operation supplied from the power generation block via the wiring cable connected to the display block In addition to supplying electric power to the display block, the display block is provided with a connection block that connects the display block to the water surface around the structure with a wiring cable. By performing a visual display or audible indication using the operation power supplied through the line cable, it is obtained so as to indicate the presence of the hazard.

  At this time, the display block has a float section for floating the display block on the water surface, a light emitting section that emits light by operating power supplied from the power generation block and visually displays the presence of a dangerous place, and is floating on the water surface A display unit that visually displays the presence of a location with characters or symbols, or a notification sound output unit that audibly displays the presence of a dangerous location by outputting a notification sound consisting of voice or signal sound by operating power supplied from the power generation block , At least one of them may be included.

  Further, the power generation block may include a power generation unit that generates operating power by the water flow flowing around the structure, and a piping unit that accommodates power transmission wiring that transmits the operating power generated by the power generation unit to the locking block. Good.

  In addition, as the water level rises, the locking block displays the operating power from the power generation block via the holding unit that releases the holding of the previously held display block and the wiring cable connected to the display block. A power distribution unit to be supplied to the block, a wiring housing unit that adjusts the length of the wiring cable by feeding and housing the wiring cable according to fluctuations in the water level, and a wiring cable fed from the wiring housing unit And a wiring guide part that fixes the display block released from being held by the holding part to the water surface around the structure.

  In addition, the power generation block is attached to the upper part of the inner wall of the side hole portion of the manhole, and generates power using the water flow flowing in the side portion, and the operation power generated by the power generation portion is transmitted to the locking block. And holding the display block that is held in advance according to the rise in the water level in the vertical hole portion, which is attached to the inner wall of the vertical hole portion of the manhole. A holding unit to be released, and a power distribution unit which is attached to the inner wall of the vertical hole portion and supplies operating power from the power generation block supplied via the power transmission wiring to the display block via a wiring cable connected to the display block; The wiring cable is attached to the inner wall of the vertical hole, and the wiring cable is adjusted to adjust the length of the wiring cable by feeding and housing the wiring cable according to the fluctuation of the water level in the vertical hole. The display block that is held and released by the holding part is locked to the water surface around the structure by guiding the wiring cable that is attached to the inner wall of the vertical part and the vertical hole part along the structure. And a wiring guide portion to be included.

  In addition, the power generation block is attached to the wall of the ditch or the river bank, and generates power using the water flow flowing along the wall, and power transmission that transmits the operating power generated by the power generation unit to the locking block. A holding part for releasing the holding of the display block, which is attached to the wall surface and is held in advance according to the rise of the water level along the wall surface, A power distribution unit that is attached to the wall and that supplies operating power from the power generation block supplied via the power transmission wiring to the display block via a wiring cable connected to the display block; and A wiring housing part that adjusts the length of the wiring cable by feeding and housing the wiring cable according to the fluctuation of the water level along the line, and a wiring housing part that is attached to the wall surface. By guiding along the Luo Repetitive out the distribution cable to the structure, the holding release has been displayed block holder may include a wire guide portion for anchoring the water surface near the wall.

  According to the present invention, in the event of floods such as floods and torrential rains, there are dangers such as manholes with open lids, usually uncovered riverbanks with no lids on the sides of roads, or open side ditches, fences, etc. It is possible to accurately notify the passerby of the location. Therefore, even in situations where the water has increased due to flooding and the foot cannot be confirmed visually, it is easier to confirm even in the dark or far away, and it is possible to evacuate and move safely while avoiding danger spots It becomes.

It is explanatory drawing which shows the structure of the danger point display system at the time of a flood according to 1st Embodiment. It is a flowchart which shows operation | movement of the danger location display system at the time of a flood. It is explanatory drawing which shows the structural example of the danger point display system at the time of a flood according to 2nd Embodiment. It is explanatory drawing which shows the display block which provided the solar cell panel. It is explanatory drawing which shows the structural example of a tension adjustment mechanism. It is explanatory drawing which shows the structural example of a holding | maintenance part. It is explanatory drawing which shows a flood damage detection function. It is explanatory drawing which shows the structural example of the danger point display system at the time of a flood according to 3rd Embodiment. It is explanatory drawing which shows the structural example of a cylinder. It is explanatory drawing which shows the structural example of an electric power generation part.

Next, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
First, with reference to FIG. 1, the flood hazard location display system 1 concerning the 1st Embodiment of this invention is demonstrated. FIG. 1 is an explanatory diagram illustrating a configuration of a flood hazard location display system according to the first embodiment.

  This flood hazard location indication system 1 is installed in advance in structures such as manholes and gutters that can become danger locations in the event of floods such as floods and torrential rains. It has a function to display the dangerous place.

The danger location display system 1 at the time of a flood is composed of three functional blocks, a display block 10, a locking block 20, and a power generation block 30.
The display block 10 has a function of floating on the water surface and displaying a dangerous place. In this display block 10, as a main configuration, a light emitting unit 11 that drives a light emitting element such as an LED with the operating power generated by the power generation block 30, and the light emitting unit 11 are displayed in order to display a dangerous spot more easily. A float 12 for floating on the surface of the water and a display 13 having a floating structure that displays the contents of danger in characters and symbols and can be noticed visually even from a distance are provided. In addition to the above, a notification sound output unit 14 may be provided to audibly display the dangerous part.

  The locking block 20 has a function of associating the display block 10 with a dangerous place. The locking block 20 mainly includes a wiring cable 21 that supplies operating power from the power generation block 30 to the display block 10, and a wiring cable 21 that is wrapped in a structure to lock the display block 10 to a dangerous place. Wiring guide portion 22 for tying and guiding, storing display block 10 in a normal state, holding portion 23 for releasing display block 10 in response to a rise in water level, housing wiring cable 21 and wiring in accordance with the rise of display block 10 A wiring accommodating portion 24 that adjusts the tension of the cable 21 and a power distribution portion 25 that distributes operating power supplied from the power generation block 30 to each circuit portion in the wiring cable 21 and the locking block 20 are provided.

  The power generation block 30 has a function of supplying electric power to the entire danger point display system 1 at the time of flood. The power generation block 30 includes, as main components, a power generation unit 31 that starts power generation in the event of a flood, power transmission wiring 32 that supplies operating power generated by the power generation unit 31 to the wiring accommodation unit 24 of the locking block 20, and A piping portion 33 that houses the power transmission wiring 32 and performs waterproofing and corrosion prevention is provided.

[Operation of First Embodiment]
Next, with reference to FIG. 2, the operation | movement of the danger point display system 1 at the time of a flood according to this Embodiment is demonstrated. FIG. 2 is a flowchart showing the operation of the danger location display system at the time of flood.
Here, the flood hazard location display system 1 according to the present embodiment is installed in advance for structures such as manholes, gutters, and riverbanks that are dangerous locations when evacuating or moving outdoors when a flood occurs. And

  When the water level around the structure starts to rise due to heavy rain, etc. due to heavy rain, and the water level exceeds the position (height) where the power generation unit 31 of the power generation block 30 is installed, the outflowed water in the structure The propeller of the power generation unit 31 with respect to the direction of water flow is provided by a movable unit for fixing the power generation unit 31 to the wall surface of the flowing path and a frame body such as a finned fence installed for protection of the power generation unit 31 and the like. The posture of the power generation unit 31 is adjusted with respect to the water flow so as to face each other (step 100).

Thereafter, when the power generation unit 31 is submerged due to a further rise in water level, a power generation propeller is operated by the water flow, and power generation is started in the power generation unit 31 by hydraulic power (step 101).
With this further rise in the water level and the start of power generation at the power generation unit 31, power supply to the light emitting unit 11, the display unit 13, and the circuit unit constituting the notification sound output unit 14 of the display block 10 is started, and visible display is performed. Or the operation | movement for displaying a dangerous location is started by an audible display (step 102).

  Thereafter, when the water level rises beyond the holding portion 23 of the locking block 20, the holding function of the holding portion 23 that fixes the display block 10 to the wall surface of the structure is released normally, and the display block 10 is held by the holding portion 23. (Step 103). Thereby, the display block 10 starts to float according to the buoyancy.

Here, a lid such as a manhole is displaced or opened due to the water pressure accompanying the rise in the water level, and water overflows on the road surface (the ground surface), so that the dangerous part is submerged and a dangerous part is generated.
At this time, while the water level further rises on the road surface, the display block 10 which is released from the holding unit 23 and is in the water passes through a gap or the like generated in the dangerous place by the buoyancy of the float unit 12, and rises to the water surface. 12, the posture of the display block 10 is adjusted so that a part of the display block 10 is standing under the water surface and a part of the display block 10 is above the water surface like a float used for fishing. (Step 104).

Thereafter, as the water level further rises, the wiring cable 21 connecting the wiring housing portion 24 and the lower portion of the display block 10 is discharged from the wiring housing portion 24 (step 105).
At this time, the attractive force adjustment function in the wiring accommodating portion 24 operates according to the fluctuation of the water level and the strength of the water flow where the display block 10 is levitated, and the display block 10 is in a posture standing up by buoyancy at the water surface position. Thus, the length of the wiring cable 21 is adjusted (step 106). Thereby, even if a water level and a water flow fluctuate, the visible display or audible display which shows the existence of a dangerous place in the water surface position around a structure is maintained.

[Effect of the first embodiment]
As described above, in the present embodiment, the display block 10 rises to the surface of the water according to the rise of the water level and displays the position of the dangerous place, and the locking block 20 displays the display block 10 according to the rise of the water level. It is locked to the water surface around the structure, and the power generation block 30 generates operating power by the water flow that flows out around the structure, and supplies it to the display block 10 via the locking block 20. The presence of the dangerous place is displayed by visual display or audible display using the operating power supplied from the power generation block 30.

  Due to this, in the event of floods such as floods and torrential rains, there are dangerous places such as manholes with open lids, usually uncovered riverbanks with no lids on the sides of roads, open side ditches, or banks without fences, etc. Can be accurately notified to passers-by. Therefore, even in situations where the water has increased due to flooding and the foot cannot be confirmed visually, it is easier to confirm even in the dark or far away, and it is possible to evacuate and move safely while avoiding danger spots It becomes. Furthermore, the present invention can be applied to the identification and presentation of a submerged stepped part or a deep puddle part that is dangerous when moving outdoors.

  In addition, it is possible to easily identify the hazardous location by simple installation work without large-scale renovation of existing facilities, etc., so that the cost for installation and operation can be expected to be reduced. As a result, it can be applied to more locations and contribute to the prevention of secondary disasters.

  Further, in the present embodiment, in the display block 10, the float block 12 floats the display block 10 on the water surface, and the light emitting unit 11 emits light by the operating power supplied from the power generation block 30 to detect the presence of a dangerous place. The presence of the dangerous part is audibly displayed by outputting a notification sound consisting of a sound or a signal sound by the operating power supplied from the power generation block 30 in the visual display or the notification sound output unit 14, and thus leaked. Even if the water level fluctuates, the water is cloudy, or even a person requiring assistance with a visual impairment or hearing impairment, it is possible to clearly notify the existence of a dangerous spot.

  In the present embodiment, in the locking block 20, the holding unit 23 holds the display block 10 when the water level is in the normal range, and holds the display block 10 when the water level rises from the normal range. The power distribution unit 25 supplies the operating power from the power generation block 30 to the display block 10 via the wiring cable 21 connected to the display block 10, and the wiring housing unit 24 responds to the fluctuation of the water level with the wiring cable. The length of the wiring cable 21 is adjusted by carrying out and accommodating 21, and the wiring cable 21 taken out from the wiring accommodating portion 24 is guided along the structure by the wiring guide portion 22, thereby holding the holding portion. Since the display block 10 released from holding at 23 is connected to the water surface around the structure, the wiring cable 2 can be used in accordance with the rise and fall of the water level of the outflowed water. It can be adjusted length of the automatically.

  Moreover, in this Embodiment, in the electric power generation block 30, the electric power generation part 31 produces | generates operating electric power with the flow of the water which flows around a structure, and the connecting part blocks the operating electric power generated by the electric power generation part 31 in the piping part 33. Since the power transmission wiring for transmitting power to 20 is accommodated and the power transmission wiring is waterproofed, the operating power can be automatically supplied to the display block 10 in response to the increase of water in the event of a flood. Without being necessary, even if a power outage occurs in the event of a flood, it is possible to accurately notify the passers-by of the presence of a dangerous spot.

[Second Embodiment]
Next, with reference to FIG. 3, the flood hazard point display system 1 according to the second embodiment of the present invention will be described. FIG. 3 is an explanatory diagram illustrating a configuration example of a flood hazard point display system according to the second embodiment.
This Embodiment demonstrates the specific example at the time of attaching the dangerous location display system 1 at the time of a flood to a manhole.

  In FIG. 3, the power generation unit 31 of the power generation block 30 is installed on the inner upper side of the side hole 41 of the manhole 40. Accordingly, during normal times, power generation is not performed because the power generation unit 31 is in a position that is higher than the normal water surface and is not immersed in water. On the other hand, when a flood occurs, the water flowing through the side hole 41 is increased and the power generation unit 31 is submerged, and power generation is automatically started by the water flow. Thereby, since the generated operating power is supplied to the display block 10 via the locking block 20, the display of the presence of the dangerous place is started on the display block 10. In addition, the electric power generation part 31 can stabilize electric power generation operation | movement by installing in the horizontal hole part 41 in the position where a water flow is not greatly disturbed up and down other than a horizontal direction.

Further, a streamlined frame 31 </ b> A is provided around the power generation unit 31 to protect it from effluent flowing in water. At this time, the power generation unit 31 may be rotatably attached to the inner wall of the horizontal hole portion 41, and a fin may be provided on a part of the frame body 31A. Thereby, the direction of the power generation unit 31 can automatically face the flowing water direction, and more efficient power generation can be realized. The material of the frame 31A and the fins may be hard, and those having corrosion resistance against chemical substances such as hydrogen sulfide in normal times may be used.
Furthermore, in preparation for a case where the water flow is weak or a failure or the like, a plurality of power generation units 31 themselves may be connected in parallel, or the power generation units 31 that can ensure power saving even in a weak flow may be connected in parallel.

FIG. 4 is an explanatory diagram showing a display block provided with a solar cell panel.
When it is necessary to secure more power in addition to the power generated by the power generation unit 31, a solar cell panel 34 is provided on the upper part on the display block 10 side or connected to the float unit 12 by wiring. The solar cell panel 34 may be installed on the float part 12A, and the solar cell panel 34 may generate power. At this time, the solar cell panel 34 may be provided with a transparent shielding that can withstand some pressure, assuming that the solar cell panel 34 is stepped on by mistake.

  In addition, the power storage unit 35 is mounted on the lower surface of the display block 10, and the power generated by the solar battery panel 34 and the power generated by the power generation unit 31 are stored in the power storage unit 35. Thereby, the generated power can be stably supplied to the display block 10. The power storage unit 35 also serves as a lower weight for adjusting the center of gravity of the float unit 12, so that the buoyancy of the float unit 12 needs to be adjusted.

  The pipe portion 33 is a pipe made of a hard and corrosion-resistant material, and is disposed along the inner wall of the vertical hole portion 42 of the manhole 40 as shown in FIG. The electric power generated by the power generation unit 31 of the power generation block 30 is transmitted to the power distribution unit 25 of the locking block 20 via the power transmission wiring 32 passed through the piping unit 33.

  The main feature of the locking block 20 is that the length of the wiring cable 21 is adjusted in the wiring housing portion 24 in order to accurately display the location of the dangerous location on the display block 10 when the water surface moves up and down. Therefore, it has a tension adjustment function.

FIG. 5 is an explanatory diagram illustrating a configuration example of the tension adjusting mechanism.
The tension adjusting mechanism 24D of the wiring accommodating portion 24 includes a reel 24A that winds the wiring cable 21 up to the display block 10, and a reel 24B that is fixed to the shaft 24C of the reel 24A and adjusts the attractive force applied to the reel 24A. Is provided.
In the wiring cable 21 connected to the display block 10 floating on the water surface around the dangerous place, the buoyancy generated in the display block 10 as the water surface rises, the gravity applied to the display block 10, and the display block 10 is a water flow. A tension A composed of a resultant force of the fluid force received from the cylinder is generated.

  This tension A is transmitted from the display block 10 to the wiring accommodating portion 24 via the wiring cable 21 and becomes an attractive force A. Therefore, in the tension adjusting mechanism 24D, it is necessary to apply a moment Mb substantially equal to or slightly larger than the moment Ma generated in the reel 24A by the attractive force A transmitted from the display block 10 to the reel 24B.

  In the example of FIG. 5, adjustment is made with the weight 32B connected to the cable 32A wound around the reel 24B so that the moment Mb is generated in the reel 24B with respect to the moment Ma generated in the reel 24A due to the tension A. ing. The weight 32 </ b> B is disposed inside the lateral hole 41 of the manhole 40 like the power generation unit 31, and is connected to the end of the cable 32 </ b> A guided from the wiring housing part 24 along the piping part 33. Thereby, the gravity B which consists of gravity concerning the weight 32B, the flow force received from the flowing water which flows in the side hole part 41, and the buoyancy applied to the weight 32B can be utilized as the attractive force B.

  The moment Ma generated by the reel 24A is the product of the reel 24A radius Ra and the attractive force A, and the moment Mb generated by the reel 24B is the product of the reel 24B radius Rb and the attractive force B. Accordingly, not only the magnitude of the attractive force B from the weight 32B but also the magnitude of the attractive force B may be adjusted in consideration of the reels 24A radii Ra and Rb.

As shown in FIG. 3, the main feature of the display block 10 is that the display block 10 itself automatically displays the presence of a dangerous location in response to a rise in the water level due to flood damage, and the water level moves up and down. Even if there is, there is a function that continues to present the identification of the dangerous position.
The float portion 12 of the display block 10 is made of a material and a structure that easily floats on water having a center of gravity at the lower end portion to which the distribution cable 21 is connected. Like a fishing float, it always stands upright on the water surface and maintains a posture where the upper part is exposed above the water surface.

The float unit 12 includes a light emitting unit 11 made of a light emitting element such as an LED, a character or design for informing a dangerous place on the surface, and a display made of a plate or sheet display floating on the surface of the water Further, a notification sound output unit 14 that generates and outputs a notification sound such as a voice or an alarm sound is provided. Furthermore, a structure for generating an oscillating sound such as a whistling sound by wind power, a flapping sound, etc. may be added to the display block 10 in preparation for a situation where sufficient power cannot be supplied.
For this reason, even when the structure is in a dark place, in a dark time zone, or even with a blind person, or even from a relatively long distance, the display block 10 can be surely seen and the presence of a dangerous location can be confirmed. be able to.

  Alternatively, a resin optical fiber 11A without clothing may be wound around the float 12 and the wiring cable 21 to propagate a part of the light from the light emitting unit 11 of the display block 10. Thereby, even under the surface of the water, the direction of the dangerous place can be clearly indicated by the light emitted from the optical fiber 11A. At this time, if a fluorescent agent is applied to the wiring cable 21, the light emitted from the optical fiber 11 </ b> A is reflected by the fluorescent agent, and the direction of the dangerous part becomes clearer.

Further, when the water flow is intense, the entire float unit 12 may be submerged under the water surface. Therefore, by projecting the upper end of the optical fiber further upward from the float portion 12, light from the light emitting portion 11 is emitted upward. Therefore, even if the entire float portion 12 is submerged below the surface of the water, it is a dangerous place. Can be confirmed. Furthermore, it is possible to visually check whether the water flow around the display block is intense depending on the state of the float 12 even from a distance or in the dark.
Instead of the display block 10, a display block 10A including a float part 12A floating on the water surface and a flag-like display part 13A fixed to a pole standing on the float part 12A may be used.

  As shown in FIG. 3, the danger location display system 1 at the time of flood is installed on the inner side surface of the horizontal hole portion 41 or the vertical hole portion 42 of the manhole 40. On the wall surface around the entrance of the manhole 40, the display blocks 10 are combined and held by the holding unit 23, and the wiring of the locking block 20 and the power generation block 30 is composed of guides and piping installed on the inner wall surface of the manhole. It is held by the wiring guide 22. In addition, the power generation unit 31 is installed on the ceiling in the side hole 41. For this reason, the danger location display system 1 at the time of a flood basically does not affect operations such as maintenance in the manhole 40.

FIG. 6 is an explanatory diagram illustrating a configuration example of the holding unit.
The holding part 23 is provided on the inner wall surface 43 of the manhole, and the fixing part 23A fitted to the fixing part 12B on the float part 12 side, and the float 23C is attached to the upper part, and the fixing part 12B and the fixing part 23A are connected. It comprises a stopper 23B to be fixed.
When the water level rises at the time of the occurrence of water damage and the stopper 23B is lifted by the float 23C, the fixing portion 12B is released from the fixing portion 23A. Thereby, the float part 12 detaches | leaves from the holding | maintenance part 23, and starts floating.

In addition, as a countermeasure when the lid of the manhole 40 is displaced and a part of the hole is opened at the time of flooding, the size of the float portion 12 is set to be sufficiently smaller than the diameter of the manhole 40. You may make it install the display block 10 and the securing block 20, and the electric power generation block 30 if necessary in several surrounding places.
As a result, when the water level rises and exceeds the height of the holding portion 23 that connects the display block 10 and the inner wall surface of the manhole 40, and the lid 44 of the manhole 40 is displaced or removed from the normal position, the manhole 40 and lid The display block 10 ascends from the manhole 40 to the water surface above the manhole 40 by the buoyancy and the flow force from the gap 44, and starts displaying the dangerous place.

  In the hazardous area display system 1 in the event of a flood, basically, the wiring housing portion 24 that houses the wiring cable 21 that connects the power generation block 30 and the locking block 20 is waterproofed by a pipe or package that has corrosion resistance and hardness, The waterproof parts are also maintained by adopting and processing a waterproof mechanism such as O-ring.

  The power distribution unit 25, the float unit 12 of the display block 10, the notification sound output unit 14, the light emitting unit 11, and the like are subjected to waterproof shield processing with a transparent coating having corrosion resistance. In addition, in order to give the circuit part the durability that will not be damaged even if it is stepped on to some extent or under pressure, by providing a mechanism that individually protects such as transparent encapsulation, the waterproofness of the entire system is secured. .

FIG. 7 is an explanatory diagram showing a water damage detection function.
In the flood hazard location display system 1, the flow meter 36 is installed on the ceiling of the side hole 41 around the power generation unit 31, and the operation sensing unit 24 E that senses the operation of the wiring housing unit 24 is installed. Alternatively, the flood occurrence information including the detection result in the motion sensing unit 24E and preset position information and ID may be wirelessly transmitted from the wireless unit 24F.
At this time, the power generation unit 31 and the flow meter 36 may be installed at a position corresponding to the dangerous water level, or may be installed at a sewer pipe ceiling where the water level cannot reach under normal conditions.

By providing such a flood damage detection function, it is possible to grasp the occurrence of flood damage at a remote monitoring center based on the flood occurrence information notified in response to the rise in water level, and it is possible to take a quick response.
Moreover, since a dangerous part generate | occur | produces by a flood and the case where the display block 10 surfaced can be confirmed, it can utilize also for the maintenance check after a flood damage calms down.

[Third Embodiment]
Next, with reference to FIG. 8, a flood hazard point display system 1 according to a third embodiment of the present invention will be described. FIG. 8 is an explanatory diagram illustrating a configuration example of a flood hazard point display system according to the third embodiment.
This Embodiment demonstrates the specific example at the time of attaching the danger location display system 1 at the time of a flood to a ditch or a riverbank.

  The feature of the flood hazard location display system 1 installed in the gutter or the riverbank is that the display block 10, the locking block 20, and the power generation block 30 are stored in the rigid cylinder 50 compared to the case of manholes. In addition, the power generation unit 31 disposed in the lower part of the cylindrical body 50 has a water guide hole 51 through which water having an elevated water level can pass.

FIG. 9 is an explanatory diagram illustrating a configuration example of a cylindrical body.
The cylinder 50 is fixed to a side wall or a river wall 60 via a holding portion 50A. An opening 50B for the display block 10 to float up to the water surface is formed above the cylinder 50, and the opening. A lid 50C that covers 50B is provided.
The lid 50C is made of a translucent member such as a translucent hard plastic, and the locking mechanism of the opening 50B is increased according to the rise in water level due to the buoyancy of the lid 50C and the buoyancy of the float attached to the lid 50C. The lid 50C is released and has a function of automatically opening. Thereby, the display block 10 accommodated in the cylinder 50 has a mechanism that floats up to the water surface.

FIG. 10 is an explanatory diagram illustrating a configuration example of the power generation unit.
The cylindrical body 50 is installed at a height where the height position of the power generation unit 31 corresponds to the dangerous water level position in the side wall 60 or the wall surface 60 of the riverbank. As a result, in the same manner as a water level meter that senses the water level, the water level rise is sensed and notified by wireless communication, or in response to the start of power generation in the power generation unit 31, the light emitting unit 11 and the notification sound output unit 14 of the display block Visual display and audible display can be started, and it can also serve as an alert notifying the danger of flooding.

  When the water level rises to the height position of the propeller 31 </ b> B of the power generation unit 31, the propeller 31 </ b> B starts to rotate with the water flow that flows into the cylindrical body 50 through the water guide hole 51. The rotation of the propeller 31B is transmitted to the generator 31D via the rotating shaft 31C, and power generation at the generator 31D is started. As a result, the operating power obtained by power generation is transmitted from the wiring housing portion 24 to the wiring cable 21 via the power transmission wiring 32 and supplied to the display block 10.

  In addition, about the water conveyance hole 51, you may form in the lower part of the cylinder 50 at equal intervals over a perimeter, but you may form in a part of lower part of the cylinder 50 along a flowing water direction. Thereby, the direction of the water flow flowing into the cylinder 50 can be fixed, the direction of the propeller 31B can be directly opposed to the water flow direction, and power can be generated efficiently. In addition, in order to make electric power generation efficiently by directing the direction of the propeller 31B in the water flow direction, a wing portion that faces the flow direction like a weathercock may be provided at the rear portion or the periphery of the propeller 31B.

[Extended embodiment]
The present invention has been described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Hazardous location display system at the time of flood, 10, 10A ... Display block, 11 ... Light emission part, 11A ... Optical fiber, 12, 12A ... Float part, 12B ... Fixed part, 13, 13A ... Display part, 14 ... Notification sound output Part, 20 ... locking block, 21 ... wiring cable, 22 ... wiring guide part, 23 ... holding part, 23A ... fixing part, 23B ... stopper, 23C ... float, 24 ... wiring housing part, 24A, 24B ... reel, 24C ... Axis, 24D ... Tension adjustment mechanism, 24E ... Motion sensing unit, 24F ... Radio unit, 25 ... Power distribution unit, 30 ... Power generation block, 31 ... Power generation unit, 31A ... Frame, 31B ... Propeller, 32 ... Power transmission wiring, 32A ... Cable, 32B ... Weight, 33 ... Piping part, 34 ... Solar cell panel, 35 ... Power storage part, 36 ... Flow meter, 40 ... Manhole, 41 ... Horizontal hole part, 42 ... Vertical hole part, 43 ... Inner wall surface, 4 ... lid 50 ... tubular body, 50A ... holding portion, 50B ... opening, 50C ... lid, 51 ... water guiding hole 60 ... wall.

Claims (6)

A flood hazard location display system that is attached to a structure that can be a danger location in the event of a flood and displays the location of the danger location in response to an increase in the water level that has flowed out around the structure,
A display block that rises to the surface of the water in response to the rise in the water level and displays the presence of the dangerous location;
A power generation block for generating operating power by the flow of water flowing around the structure;
In response to the rise in the water level, the holding of the display block held in advance is released, and the operating power supplied from the power generation block to the display block via a wiring cable connected to the display block is released. And a locking block for locking the display block to the water surface around the structure by the wiring cable,
The flood hazard location display system, characterized in that the display block displays the presence of the danger location by performing visual display or audible display using the operating power supplied via the wiring cable. In the flood hazard location display system according to claim 1,
The display block is:
A float for floating the display block on the water surface;
A light-emitting unit that emits light by the operating power supplied from the power generation block and visually displays the presence of the dangerous part, a display unit that floats on the water surface and visually displays the presence of the dangerous part by characters or designs, or the It includes at least one of a notification sound output unit that audibly displays the presence of the dangerous part by outputting a notification sound consisting of a sound or a signal sound by the operating power supplied from the power generation block. Dangerous point display system in case of flood. In the flood hazard location display system according to claim 1 or claim 2,
The power generation block is
A power generation unit that generates the operating power by a water flow flowing around the structure;
And a piping part that houses a power transmission line for transmitting the operating power generated by the power generation part to the locking block. In the flood critical point display system according to any one of claims 1 to 3,
The locking block is
A holding unit for releasing the holding of the display block held in advance according to the rise in the water level;
A power distribution unit that supplies the operating power from the power generation block to the display block via the wiring cable connected to the display block;
A wiring housing part that adjusts the length of the wiring cable by feeding and housing the wiring cable according to fluctuations in the water level;
A wiring guide portion that guides the wiring cable fed out from the wiring housing portion along the structure, thereby locking the display block released by the holding portion to the water surface around the structure; A flood hazard display system characterized by including water. In the flood hazard location display system according to claim 1,
The power generation block is
A power generation unit that is attached to the upper part of the inner wall of the side hole part of the manhole and generates the operating power by the water flow flowing through the side part,
A piping section that houses a power transmission wiring for transmitting the operating power generated by the power generation section to the locking block;
The locking block is
A holding part that is attached to the inner wall of the vertical hole part of the manhole and releases the holding of the display block that has been held in advance according to the rise in the water level in the vertical hole part,
A power distribution unit that is attached to the inner wall of the vertical hole and supplies the operating power from the power generation block supplied via the power transmission wiring to the display block via the wiring cable connected to the display block When,
A wiring housing portion that is attached to the inner wall of the vertical hole portion and adjusts the length of the wiring cable by feeding and housing the wiring cable according to the fluctuation of the water level in the vertical hole portion,
The display block, which is attached to the inner wall of the vertical hole portion and guided from the wiring accommodating portion along the structure, is guided along the structure to release the display block released from the holding portion around the structure. A system for displaying a danger point in the event of a flood, characterized by comprising a wiring guide part that is connected to the water surface. In the flood hazard location display system according to claim 1,
The power generation block is
A power generation unit that is attached to a wall of a gutter or a river bank and generates the operating power by a water stream flowing along the wall surface;
A piping section that houses a power transmission wiring for transmitting the operating power generated by the power generation section to the locking block;
The locking block is
A holding unit that is attached to the wall surface and releases the holding of the display block held in advance according to the rise in the water level along the wall surface,
A power distribution unit that is attached to the wall surface and that supplies the operating power from the power generation block supplied via the power transmission wiring to the display block via the wiring cable connected to the display block;
A wiring housing part that is attached to the wall surface and adjusts the length of the wiring cable by feeding and housing the wiring cable according to the fluctuation of the water level along the wall surface;
The display block which is attached to the wall surface and is fed out from the wiring housing portion along the structure is guided along the structure, so that the display block released by the holding portion is locked to the water surface around the wall surface. A system for displaying a hazardous area in case of flood, characterized by including a wiring guide section.

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