JP2018084977A - Underpass alarm displaying system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform alarm displaying capable of surely notifying a vehicle of an alarm warning a state of an underpass covered with water, when the underpass is covered with water.SOLUTION: A closed zone communication network constructed in an underpass 3 comprises a master unit A and a slave unit A group, and the closed zone communication network constructed on a road entering the underpass 3 comprises a master unit B and a slave unit B group. When the underpass 3 is covered with water, alarm displaying a state where the underpass 3 is covered with water is performed on alarm display devices of the slave unit A group and the slave unit B group. This can surely notify a vehicle of an alarm warning a state of the underpass 3 covered with water, and can prevent the vehicle from entering the underpass covered with water as much as possible.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an underpass warning display system that displays a warning that can prevent a vehicle from entering an underpass when the underpass is flooded.

There are two types of flooding in which river water overflows outside, such as a dike, flooding outside water and flooding inside water. In contrast to the flooding of the outside water that occurs when the water level of the river itself rises, the flooding of the inland water occurs when the amount of rain that falls on the urban area exceeds the capacity of the city.
Normally, inland water is drained into rivers by sewer storm water pipes and pumping facilities. As a result, buildings, land, roads, etc. will be submerged in water. In recent years, the risk of damage from inland flooding has increased with the occurrence of localized heavy rains such as guerrilla heavy rains and the progress of urbanization. And if inundation occurs, the underpass below the ground is particularly prone to flooding, and if the vehicle enters the flooded underpass, it will be damaged.

Conventionally, Patent Document 1 discloses a flooding monitoring device for monitoring the flooding condition of a road surface applied to a vehicle road having an underpass structure. The configuration of this flood monitoring apparatus is shown in FIG.
A conventional flood monitoring apparatus 500 shown in FIG. 25 is applied to a vehicle road having an underpass structure. The underpass structure is an intersection of a railway line or a main road, and one road is replaced with another road or road. It has a structure hidden under. In the underpass 503, the road hidden underneath has a concave shape in the traveling direction.
In the conventional flood monitoring apparatus 500, a plurality of radar reflectors 510a, 510b, 510c are installed on the concave road of the underpass 503, and the radar unit 501 is installed at a position exiting from the concave road of the underpass 503. In addition, a bulletin board 502 for displaying a warning is provided at a predetermined place that exits from the concave road of the underpass 503.

  The radio wave radiated from the radar unit 501 is reflected by the radar reflectors 510a, 510b, and 510c, and the radar unit 501 is installed so that the reflected wave returns to the radar unit 501. When the underpass 503 is not flooded, the reflected waves reflected by the radar reflectors 510a, 510b, and 510c return to the radar unit 501 with a predetermined reflection intensity. When the underpass 503 is immersed in water and the radar reflectors 510a, 510b, and 510c are gradually covered with water, the reflection intensity of the radar reflectors 510a, 510b, and 510c decreases accordingly. That is, it is possible to detect that the underpass 503 is flooded by detecting the reflection intensity of the radar reflectors 510a, 510b, and 510c. When it is detected that the underpass 503 has been submerged, a warning “prohibition of submergence” is displayed on the bulletin board 502. Thus, by viewing the bulletin board 502 from the vehicle, the vehicle can be prevented from entering the flooded underpass.

JP 2013-32999 A

  The conventional flood monitoring device is provided with a bulletin board 502 that displays “submersion entry prohibition” at the entrance of the underpass when the underpass is flooded. Since the warning is notified by the bulletin board installed immediately before, it is difficult to notice the warning display, and even if you notice it, the vehicle will not be braked in time, and it will enter the flooded underpass and the vehicle will be submerged There was a problem of fear.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an underpass warning display system that displays a warning that can reliably convey a warning that an underpass is flooded to a vehicle when the underpass is flooded.

  The underpass warning display system according to the present invention includes a first parent device and a plurality of first child devices belonging to the first parent device, and the plurality of first child devices are in an underpass. A first closed communication network that is installed in the underpass from a road that is recessed in the direction of travel hidden underneath, and is constructed in the underpass; a second master unit; It consists of a plurality of second slave units belonging to the second master unit, and the plurality of second slave units are installed on the road entering the underpass and constructed on the road entering the underpass The second closed area communication network and the concave road, the water level meter installed at a substantially central position of the concave shape, and the water level detected by the water level meter indicate that the underpass has been submerged. When the threshold value is exceeded, the first base unit and the second base unit An information providing unit that transmits a notification display change instruction, wherein the first master unit and the second master unit that have received the warning display change instruction include the plurality of first units belonging to the closed communication network of the own unit. The warning display change instruction is sent to the second slave unit and the plurality of second slave units, and the warning display change instruction is sent to the warning indicator in the plurality of first slave units and the plurality of second slave units. The main feature is to display warnings according to the situation.

  The underpass warning display system of the present invention includes a plurality of first slave units of the first closed communication network constructed in the underpass and a second closed communication network constructed in the road entering the underpass. A plurality of second slave units are made to display a warning when the underpass is flooded. As a result, when the underpass is flooded, the warning that the underpass is flooded can be reliably transmitted to the vehicle traveling in the direction of the underpass, and the vehicle will enter the flooded underpass. It can be prevented as much as possible.

It is a functional block diagram which shows the structure of the underpass warning display system concerning the Example of this invention. It is a figure which shows the physical structure of the underpass warning display system concerning the Example of this invention. It is a figure which shows the position where a subunit | mobile_unit and a main | base station are installed in the underpass warning display system concerning the Example of this invention. It is a figure which shows the position of the subunit | mobile_unit in which warning display is performed in the underpass warning display system concerning the Example of this invention. It is a figure which shows the example of the display mode of the warning display of the subunit | mobile_unit in the underpass warning display system concerning the Example of this invention. It is a figure which shows the other position where a subunit | mobile_unit and a main | base station are installed in the underpass warning display system concerning the Example of this invention. It is a figure which shows the position of the subunit | mobile_unit in which warning display is performed in the underpass warning display system concerning the Example of this invention. It is a figure which shows the other example of the display mode of the warning display of the subunit | mobile_unit in the underpass warning display system concerning the Example of this invention. It is a figure which shows the warning display example of a subunit | mobile_unit in the underpass warning display system concerning the Example of this invention. It is a figure which shows the other example of a warning display of a subunit | mobile_unit in the underpass warning display system concerning the Example of this invention. It is a functional block diagram which shows the structure of the subunit | mobile_unit in the underpass warning display system concerning the Example of this invention. It is a functional block diagram which shows the structure of the main | base station in the underpass warning display system concerning the Example of this invention. It is a functional block diagram which shows the structure of the microcontroller in the underpass warning display system concerning the Example of this invention. It is a functional block diagram which shows the structure of the information provision part in the underpass warning display system concerning the Example of this invention, the structure of an information delivery server, a data processing server, and a database part. It is a flowchart of the subunit | mobile_unit process performed with the subunit | mobile_unit in the underpass warning display system concerning the Example of this invention. It is a flowchart of the main | base station process performed with the main | base station in the underpass warning display system concerning the Example of this invention. It is a flowchart of the data processing server process performed with the data processing server in the underpass warning display system concerning the Example of this invention. It is a flowchart of the data processor process performed with the data processor in the underpass warning display system concerning the Example of this invention. It is a flowchart of the information delivery server process performed with the information delivery server in the underpass warning display system concerning the Example of this invention. It is a functional block diagram which shows the structure of the terminal device provided with the function of a subunit | mobile_unit and a main | base station in the underpass warning display system concerning the Example of this invention. It is a perspective view which shows the structure of the gaze guidance mark of an example of the subunit | mobile_unit in the underpass warning display system concerning the Example of this invention. It is an assembly figure shown with a perspective view showing composition of a gaze guidance mark of an example of a child machine in an underpass warning display system concerning an example of the present invention. It is another assembly drawing shown by the perspective view which shows the structure of the example of the guidance | guideline | guidance guidance mark of the subunit | mobile_unit in the underpass warning display system concerning the Example of this invention. It is a figure which shows the display aspect of the structure of the warning display part of the gaze guidance mark of an example of the subunit | mobile_unit in the underpass warning display system concerning the Example of this invention, and a warning display. It is a figure which shows the structure of the conventional flooding monitoring apparatus.

The configuration of an underpass warning display system 1 according to an embodiment of the present invention is shown in FIG. In the underpass warning display system 1 according to the present invention, when the underpass is submerged, it is possible to perform a warning display that can reliably notify the vehicle that the underpass is submerged.
In describing the underpass warning display system 1, it is generally referred to as “flooding” when a house or the like is immersed in water, and “flooding” when a field or road is immersed in water. In the following, “flooding” and “flooding” are treated as synonyms meaning that houses, fields, roads, etc. are soaked in water, and “flooding” will be referred to in the following description unless otherwise specified.

The underpass warning display system 1 shown in FIG. 1 includes a terminal group 10, an information providing unit 12, and a plurality of closed communication networks 14a, 14b,..., 14m, and each unit is connected by a communication network. ing. That is, the information providing unit 12 and the terminal group 10 are connected by a communication network 11 including a public communication network or an Internet communication network that connects bases shared and used by an unspecified number of users, and the closed communication network 14a. To 14 m and the information providing unit 12 are connected by a wide area communication network 13 including an Internet communication network or a public communication network.
The closed communication networks 14a to 14m are installed in each of the divided areas and roads by dividing the area and road having the underpass managed by the underpass warning display system 1 into m. The closed communication network is a communication network that uses a dedicated communication line, and is a communication network that can prevent the possibility of data being intercepted or tampered with.

  The first closed communication network 14a includes a parent device a1, and a plurality of child devices a2, a3,..., Ai belong to the first closed communication network 14a. The parent device a1 is connected to (i-1) slave devices a2 to ai installed at predetermined points in the area assigned to the closed communication network 14a by wired or wireless closed communication. The subunit | mobile_unit a2-ai is made the same structure, and each is equipped with the positioning device which detects the positional information on the installed point. When each of the slave units a2 to ai is installed at a predetermined point and the power is turned on for the first time, each of the slave units a2 to ai has a unique individual identification number, a slave unit ID, and location information of the installed point. Is transmitted to the parent device a1 to establish communication between them.

  The second closed communication network 14b to the mth closed communication network 14m operate in the same manner as the first closed communication network 14a. That is, each of the second closed communication network 14b to the m-th closed communication network 14m includes master units b1 to m1, and a plurality of slave units b2, b3,..., Bj to slave units m2 to mk are included. It belongs to each of the second closed communication network 14b to the m-th closed communication network 14m. The base units b1 to m1 are (j-1) slave units b2 installed at predetermined points in the areas assigned to the second closed communication network 14b to the mth closed communication network 14m, respectively. Bi or (k-1) slave units m2 to mk are connected by wired or wireless closed communication. The slave units b2 to bj or the slave units m2 to mk have the same configuration as the slave units a2 to ai. When the slave units b2 to bi or the slave units m2 to mk are respectively installed at predetermined points and the power is turned on for the first time, each of the slave units b2 to bj or the slave units m2 to mk is a unique individual identification number. The slave unit ID and the location information of the installed point are transmitted to each of the master units b1 to m1 to establish communication between them.

An underpass warning display system 1 according to an embodiment of the present invention is applied to a vehicle road having an underpass structure. The underpass structure is an intersection of a railway line or a main road, and one road is replaced with the other. The structure is hidden under the route or road. In the underpass, the road hidden underneath has a concave shape in the traveling direction. The closed communication networks 14a to 14m are constructed on an underpass and a vehicle road leading to the underpass. FIG. 2 shows a physical configuration of the underpass warning display system 1 when the underpass warning display system 1 is applied to the underpass.
FIG. 2 shows an underpass 3 that is one road hidden under the other route or road at the intersection of the railway or main road in the underpass structure. That is, the underpass 3 has a concave shape in the traveling direction, and the drainage facility 2 and the master unit 30 are installed on the other route or road located on the concave shape. A plurality of slave units 20-1a to 20-9a are installed from the front side of the concave underpass 3 to the center road of the concave underpass 3 from the front side (behind depending on the direction of vehicle travel). In addition, a plurality of slave units 20-1b to 20-9b are installed from the rear side of the underpass 3 to the center road of the concave underpass 3 from the rear side (becomes the front side depending on the direction of travel of the vehicle). . In addition, a water level gauge 15 is installed at a substantially concave center which is the lowest position of the underpass 3. This water level gauge 15 is connected to the data processing server 12b. A closed communication network is constructed in the underpass 3 by the parent device 30 and the plurality of child devices 20-1a to 20-9a, 20-1b to 20-9b, and this closed communication network is the closed communication network 14a to 14a. One closed communication network within 14 m.

  In this underpass 3, the concave portion of the underpass 3 may be submerged when water flows in due to snow or rain. Therefore, a drainage facility 2 such as a drainage groove or a pump to prevent submersion. Is provided. However, when a large amount of water flows into the underpass 3 due to heavy rain, river flooding, or the like, the inflow speed of the water exceeds the drainage speed, resulting in the flooding 3a in the underpass 3. When the water level detected by the water level gauge 15 exceeds the threshold value indicating that the underpass 3 has been submerged, the data processing server 12b sends the submergence level data to the information distribution server 12a. The information distribution server 12a 3 to determine the parent device 30 of the closed communication network constructed in 3 and the parent device of the closed communication network constructed on the road leading to the underpass 3 which will be described later, and create the warning display data Send. The parent device that has received the warning display change instruction, which is warning display data, transmits the warning display change instruction to the child device belonging to its own closed communication network. The slave unit that has received this warning display change instruction turns on a warning indicator provided in the slave unit and displays a warning. That is, when submergence 3a occurs in the underpass 3, the warning indicator lights up in the slave units 20-1a to 20-9a and 20-1b to 20-9b that have received the warning display change instruction transmitted from the master unit 30. The warning is displayed. In addition, a slave unit belonging to the closed communication network receives a warning display change instruction transmitted by a master unit installed on a road leading to the underpass 3, and the warning indicator of the slave unit is turned on to display a warning. It becomes like this. Thus, the warning display that the underpass 3 has been submerged is separated from the slave units 20-1a to 20-9a, 20-1b to 20-9b installed in the underpass 3, and the underpass 3. A warning message is also displayed on the handset installed on the road leading to the underpass 3, so that the vehicle entering the underpass 3 can be surely informed that the underpass 3 has been submerged. Can be eliminated as much as possible, and accidents caused by underpass 3 can be reduced.

Here, a map showing an example of a mode in which the parent device and the child device are installed in the area A where the underpass 3 exists is shown in FIG.
In the map shown in FIG. 3, the area A is divided into blocks A-1 to A-9, and a vehicle road is provided between each block. And the underpass 3 is provided in the intersection which block A-2, A-3, A-5, and A-6 touch. A plurality of slave units belonging to the closed communication network of the master unit A are arranged in the vicinity of the underpass 3 and are formed in a concave shape in the traveling direction and across the road before and after the underpass 3. The cordless handset A group consisting of is installed. The installation status of the slave unit A is the same as the installation status of the slave units 20-1a to 20-9a and 20-1b to 20-9b shown in FIG. 2, and is illustrated in the approximate center of the concave portion of the underpass 3. Although not, a water level gauge 15 is provided. In addition, the base unit B is installed on the road between the block A-8 and the block A-9 that is separated from the underpass 3 that leads to the concave road of the underpass 3, and the closed communication network of the base unit B A slave unit B group consisting of a plurality of slave units belonging to is installed.

  And when the underpass 3 is not flooded, the warning display part in each subunit | mobile_unit in the subunit | mobile_unit A group and the subunit | mobile_unit B group is not lighted, and no warning display is performed. However, when a large amount of water flows into the underpass 3 due to heavy rain or river flooding, and the inundation 3a is generated in the underpass 3, the data processing server 12b obtains the inundation level data that is the water level detected by the water level meter 15. The information is sent to the information distribution server 12a. In the information distribution server 12a, when it is determined that the flood level data exceeds a threshold value indicating that the underpass 3 has been flooded, the closed base network A constructed in the underpass 3 and the underpass 3 The warning display data is created and transmitted to the base unit B of the closed communication network constructed on the road that leads to it. The parent device A and the parent device B that have received the warning display change instruction, which is warning display data, transmit the warning display change instruction to the child device A group and the child device B group belonging to its own closed communication network. The slave unit A and the slave unit B that have received the warning display change instruction turn on the warning indicators provided in the slave unit A and the slave unit B, respectively, and display a warning. A mode in which this warning is displayed is shown in FIG. As shown in FIG. 4, the warning indicators of the slave units in the slave unit A group and the slave unit B group are turned on to display a warning.

The configuration of each slave unit in the slave unit A group and the slave unit B group is the same. In the following description, each slave unit is described as the slave unit 20. An example of the display mode of the warning display of the slave unit 20 is shown in FIG.
As shown in FIG. 5, the handset 20 includes a cylindrical pole portion and a lower disk-shaped base, and the warning indicator 24 provided on the pole portion of the handset 20 has four light emitting portions in the vertical direction. The warning display is performed with the light emission pattern of the four-stage light emitting section, and the flood level is indicated by the light emission pattern. That is, when the submerged water level of the concave road of the underpass 3 is less than the prescribed water level, which is the threshold value, all four stages of the light emitting sections are turned off, and when the submerged water level is more than the prescribed water level and less than 50 mm, the lowest light emission Only the light emitting part is turned on, and the three light emitting parts from the top are turned off. Further, when the submergence level is 50 mm or more and less than 100 mm, the lowermost light emitting part and the light emitting part thereon are turned on, and the light emitting parts in the second stage from the top are turned off. Further, when the submergence level is 100 mm or more and less than 200 mm, a total of three light-emitting portions, ie, the lowermost step and the upper two steps are turned on, and the uppermost light-emitting portion is turned off.
In addition, the shape of the subunit | mobile_unit 20 shown in FIG. 5 is made into the shape of what is called a gaze guidance mark, and the subunit | mobile_unit 20 is also provided with the function of a gaze guidance mark. The line-of-sight guide is a road accessory installed on the roadside or on the road for the following reasons. Automobile drivers are driving as landmarks when traveling on lane markings, protective fences, etc., but it is known that the visibility is significantly reduced at night, fog, rain, and snow. In view of this, a gaze guidance mark is installed to reflect the headlight of the automobile even when visibility is poor, to improve visibility of the roadside and road alignment, and to correctly guide the driver's gaze. The handset 20 shown in FIG. 5 is integrated with the line-of-sight guide, but it is integrated with road accessories such as boundary blocks, curbs, supporting columns, guard fences, wall structures, signs, delineators, and road fences. It may be.

Next, FIG. 6 shows a map showing another example of a mode in which the parent device and the child device are installed in the area A where the underpass 3 exists.
In the map shown in FIG. 6, the area A is divided into blocks A-1 to A-9, and a vehicle road is provided between each block. And the underpass 3 is provided in the intersection which block A-2, A-3, A-5, and A-6 touch. A plurality of slave units belonging to the closed communication network of the master unit A are arranged in the vicinity of the underpass 3 and are formed in a concave shape in the traveling direction and across the road before and after the underpass 3. The cordless handset A group consisting of is installed. The installation status of the slave unit A is the same as the installation status of the slave units 20-1a to 20-9a and 20-1b to 20-9b shown in FIG. 2, and is illustrated in the approximate center of the concave portion of the underpass 3. Although not, a water level gauge 15 is provided. In addition, a base unit C is installed in the vicinity of an intersection where blocks A-5, A-6, A-8, and A-9 that are separated from the underpass 3 that leads to the concave road of the underpass 3 are in contact, A slave unit C group including a plurality of slave units belonging to the closed communication network of the master unit C is installed so as to surround the intersection.

  And when the underpass 3 is not flooded, the warning display part in each subunit | mobile_unit in the subunit | mobile_unit A group and the subunit | mobile_unit C group is not lighted, and no warning display is performed. However, when a large amount of water flows into the underpass 3 due to heavy rain or river flooding, and the inundation 3a is generated in the underpass 3, the data processing server 12b obtains the inundation level data that is the water level detected by the water level meter 15. The information is sent to the information distribution server 12a. In the information distribution server 12a, when it is determined that the flood level data exceeds a threshold value indicating that the underpass 3 has been flooded, the closed base network A constructed in the underpass 3 and the underpass 3 The warning display data is created and transmitted to the base unit C of the closed communication network constructed at the intersection of the roads leading to the road. The base unit A and the base unit C that have received the warning display change instruction, which is warning display data, transmit a warning display change instruction to the handset A group and handset C group that belong to its own closed communication network. The slave unit A and the slave unit C that have received this warning display change instruction are lit to display warning display characters on the warning indicators provided in the slave unit A and the slave unit C, respectively. A mode in which this warning is displayed is shown in FIG. As shown in FIG. 7, the warning indicators of the slave units of the slave unit A group and the slave unit C group are turned on to display a warning.

The configuration of each slave unit of the slave unit C group is also the configuration of the slave unit 20 described above, and examples of display modes of warning display of the slave units 20 of the slave unit C group are shown in FIGS. Show.
The warning display 24 of the handset 20 of the handset C group is configured by a display capable of displaying characters, and the display is configured so that the two displays face each other back to back. Different warning display characters are displayed on the two displays. For example, when “front flooding” is displayed on one display as shown in FIG. 8A, a warning message “rear flooding” is displayed on the other display as shown in FIG. 8B. Characters are displayed. Further, when “left flooding” is displayed on one display unit as shown in FIG. 8C, the “right flooding” warning is displayed on the other display unit as shown in FIG. 8D. Display characters are displayed. The “front”, “rear”, “left”, and “right” indicate the submerged direction, that is, the direction of the submerged underpass 3.

  That is, when the warning indicator 24 of the child device 20 of the child device C group is viewed from the direction of traveling toward the underpass 3 that has been submerged, the character “front flood” is displayed as a warning. When the warning indicator 24 of the child device 20 of the child device C group is viewed from the direction of traveling away from the path 3, the character “rear flooding” is displayed as a warning. FIGS. 9 and 10 are perspective views showing the intersections where the blocks A-5, A-6, A-8, and A-9 are in contact with each other. FIG. 9 shows a warning display of the warning indicator 24 of the slave unit 20 of the slave unit C when traveling in the direction of the underpass 3, and FIG. The warning display of the warning indicator 24 of the slave unit 20 of the slave unit C when traveling in the direction of leaving is shown.

  As shown in FIG. 9, the road between block A-5 and block A-6 and the road between block A-8 and block A-9 proceed in the direction toward the underpass 3 and When the warning indicator 24 of the child device 20 is viewed, the warning display character “front flood” can be visually recognized. Further, the warning indicator 24 of the slave unit 20 of the group C is set while traveling in the direction A on the road between the block A-5 and the block A-8 and the road between the block A-6 and the block A-9. When seen, the warning sign “Left flooding” can be seen. Further, the warning indicator 24 of the C group slave unit 20 is set while traveling in the B direction on the road between the block A-5 and the block A-8 and the road between the block A-6 and the block A-9. If you look at it, you can see the warning sign “right flood”.

As shown in FIG. 10, the road between the block A-5 and the block A-6 and the road between the block A-8 and the block A-9 are traveling in the direction of leaving with the underpass 3 in the rear. When the warning indicator 24 of the C-unit slave unit 20 is viewed, the warning display character “rear flood” can be visually recognized. In addition, the warning display of the slave unit 20 in the group C while traveling in the A direction or the B direction on the road between the block A-5 and the block A-8 and the road between the block A-6 and the block A-9. When the container 24 is viewed, it is the same as the description of FIG.
The information distribution server 12a may notify the mobile phone 10a existing in the area A that the underpass 3 has been flooded via the communication network 11 by e-mail or the like. In this case, broadcast distribution may be performed to a mobile phone located in a mobile phone base station that covers area A. Further, it is assumed that the PC 10b is compatible with the open network. However, the information distribution server 12a is connected to the PC 10b existing in the area A via the open network which is one form of the communication network 11 covering the area A. The underpass 3 may be inundated. In this case, it is natural that the PC 10b includes a car navigation device mounted on a vehicle that supports a tablet terminal or an open network.

By the way, the subunit | mobile_unit group which consists of subunit | mobile_unit 20-1a-20-9a, 20-1b-20-9b is the subunit | mobile_unit of subunit | mobile_unit a2-ai, subunit | mobile_unit b2-bi thru | or the subunit | mobile_unit m2-mk shown in FIG. The slave unit A group, the slave unit B group, and the slave unit C group are each one of the slave unit groups of the slave units a2 to ai, the slave units b2 to bi, or the slave units m2 to mk. Each child device of the child device group is a child device 20, and the configuration of the child device 20 will be described below. FIG. 11 is a functional block diagram showing the configuration of the slave unit 20.
As shown in FIG. 11, the subunit | mobile_unit 20 is equipped with the microcontroller 21, the positioning device 23, the warning indicator 24, and the closed area network communication I / F25, and these are connected by the bus | bath. Moreover, the power supply device 26 which supplies a power supply to each part is provided. The microcontroller 21 is a control unit that performs overall control of the operation of the slave unit 20. Specifically, the microcontroller 21 uses the GPS or the like to measure the position information of the position measurement device 23, or the position information of the point where the child device 20 that is the directly inputted position information of the child device 20 is installed. Is written to temporary memory. Further, when a switch (not shown) is turned on and power is supplied from the power supply device 26, the slave unit 20 is initialized. Then, when the acquisition of the position information is finished, the unique communication device ID assigned to the child device 20 is added to the position information of the child device 20 written in the temporary memory, and the closed communication network Transmission is performed from the communication I / F 25 to the parent device a1. Further, when the warning display change instruction is received from the parent device through the closed network communication I / F 25, the microcontroller 21 turns on / off the warning display 24 according to the received warning display change instruction. To do. Thereby, by observing the child device 20, it becomes possible to know whether or not the position where the child device is installed and the vicinity thereof are flooded. The warning indicator 24 can be constituted by a light emitting device such as a light emitting diode (LED). In addition, the power supply device 26 can be comprised from a large capacity capacitor or a secondary battery, and the solar panel for charge.

  The configuration of the microcontroller 21 will be described. FIG. 13 shows a functional block diagram showing the configuration of the microcontroller 21. As shown in FIG. 13, the microcontroller 21 includes a CPU (Central Processing Unit) 41, a ROM (Read Only Memory) 42, a RAM (Random Access Memory) 43, and an I / O 44, which are connected by a bus 45. Has been. The CPU 41 executes the control program stored in the ROM 42 so that the microcontroller 21 operates as described above. In this case, the temporary memory is set in the RAM 43 area. When the power is turned on, the CPU 41 executes an initial setting program stored in the ROM 42, and the microcontroller 21 operates as described above. The microcontroller 21 is connected to the bus of the slave unit 20 via the I / O 44.

Next, the configuration of the master unit 30 will be described. The master units a1 to m1 shown in FIG. 1 have the same configuration as the master unit 30, and the master units A, B, and C have the same configuration as the master unit 30. It is said that. FIG. 12 is a functional block diagram showing the configuration of base unit 30.
As shown in FIG. 12, the base unit 30 includes a microcontroller 31, a wide area communication network communication I / F 32, and a closed area communication network communication I / F 33, which are connected by a bus. Moreover, the power supply device 34 which supplies a power supply to each part is provided. The microcontroller 31 has the same configuration as that shown in FIG. 13 described above, and includes a CPU 41, a ROM 42, a RAM 43, and an I / O 44, which are connected by a bus 45. The control program is stored. In the microcontroller 31, the CPU 41 executes a control program for the parent device 30 stored in the ROM 42, thereby performing overall control of the operation of the parent device 30. That is, the CPU 41 in the microcontroller 31 receives the position information with the slave unit ID transmitted from the slave unit 20 via the closed communication network communication I / F 33 and writes it in the temporary memory set in the area of the RAM 43. And CPU41 transmits the positional information with the subunit | mobile_unit ID received from the subunit | mobile_unit 20 to the information provision part 12 via the wide area network communication I / F32. Further, when a warning display change instruction is received from the information providing unit 12 via the wide area communication network communication I / F 32, the CPU 41 in the microcontroller 31 has received the slave unit 20 via the closed area communication network communication I / F 33. Send warning display change instruction. The power supply device 34 is a power supply device that steps down the commercial power supply to a predetermined DC voltage. In addition, the power supply device 34 may be configured by a large-capacity capacitor or a secondary battery that matches the used power capacity instead of the commercial power supply, and a solar panel for charging.

As described above, in the first closed communication network 14a to the m-th closed communication network 14m, the parent devices a1 to m1 that are the parent devices 30 are transmitted from the child devices 20 belonging to the closed communication network. When receiving the location information of the installed location with the machine ID, each of the parent machine a1 to the parent machine m1 is received by the information providing unit 12 via the wide area communication network 13 including the Internet communication network or the public communication network. Send the location information of the installed location with the slave ID. The information providing unit 12 includes an information distribution server 12a, a data processing server 12b, and a database unit 12c. The configuration of the information providing unit 12 is shown in FIG.
In the information providing unit 12 having the configuration shown in FIG. 14A, data transmitted from the parent device a1 to the parent device m1 via the wide area communication network 13 is received via the wide area communication network communication I / F 12d. The information is delivered to the information distribution server 12a. The information distribution server 12a writes the received location information data with the slave unit ID in the master unit / slave unit registration information DB 52 of the database unit 12c in association with the ID of the master unit 30 that transmitted the data. This position information indicates coordinates on the map. As a result, the ID of the parent device 30 and the ID and position of the child device 20 constituting each of the closed communication networks 14a to 14m are registered in the parent device / child device registration information DB 52.

The database unit 12c includes the above-described parent device / child device registration information DB 52, a flooding information DB 51, and a precipitation DB 53. In the flood information DB 51 and precipitation DB 53, real-time flood information and precipitation acquired from a site on the Internet where the information distribution server 12a provides flood information and precipitation in real time are written.
The data processing server 12b monitors and detects the water level detected by the water level meter 15 installed in the underpass 3 that the underpass 3 has been submerged. That is, the flood level data detected by the water level gauge 15 is sent to the information distribution server 12a. When the flood level data is received, the data processing device 50 of the information distribution server 12a creates the warning display distribution data when the flood level exceeds a threshold value indicating that the underpass 3 has been flooded, and the master / child Accessing the machine registration information DB 52, the parent device 30 of the closed communication network constructed in the underpass 3 and the parent device A, B or the parent device A of the closed communication network constructed on the road leading to the underpass 3 C is determined as a delivery destination. The information distribution server 12a transmits the generated distribution data for warning display to the determined distribution destination master unit. In addition, the detection method of the water level of the water level meter 15 can be appropriately selected from a capacitance type, a float type, an ultrasonic type, a pressure type, and the like according to cost and application.

  When receiving the flood level data, the information distribution server 12a notifies the mobile phone 10a existing in the area A where the underpass 3 is informed by e-mail or the like that the underpass 3 has been flooded via the communication network 11. . In addition, the information distribution server 12a may distribute that the underpass 3 has been flooded to the PC 10b existing in the area A via an open network that is a form of the communication network 11 covering the area A. Thereby, the mail which alert | reports that the underpass 3 was flooded in the smart phone which is the mobile telephone 10a in a vehicle, and the tablet terminal and car navigation apparatus which are PC10b can be received.

  FIG. 14B shows the configuration of the information distribution server 12a. The information distribution server 12a shown in FIG. 14B includes a CPU 61, a ROM 62, a RAM 63, an I / O 64, and a data processing device 50, and these are connected by a bus 65. The CPU 61 is a control unit that performs overall control of the operation of the information distribution server 12a, and the above-described operation is performed by the CPU 61 executing a control program stored in the ROM 62.

  Further, the data processing server 12b and the data processing device 50 can be configured as shown in FIG. A data processing device 50 (data processing server 12b) shown in FIG. 14C includes a CPU 71, a ROM 72, a RAM 73, and an I / O 74, which are connected by a bus 75. In the case of the data processing device 50, the ROM 72 stores a control program for overall control of the operation of the data processing device 50, and the CPU 71 executes the control program to perform the above-described operation.

  Next, FIG. 15 shows a flowchart of a slave unit process executed in the slave unit 20. When the handset 20 is installed at a predetermined point and the power supply device 26 is turned on, the microcontroller 21 starts the handset processing shown in FIG. Although the slave unit processing is actually executed by the CPU 41 in the microcontroller 21, it will be described as being executed by the microcontroller 21 for convenience of explanation. When the slave unit process is started, in step S10, the microcontroller 21 determines whether or not the position information that is the coordinates of the point where the slave unit 20 is installed is acquired by the position positioning device 23. Here, when position information is not acquired (NO), it waits until it acquires, and when the microcontroller 21 judges that position information was acquired (YES), it progresses to step S11. In step S11, the microcontroller 21 adds the ID assigned to the child device 20 to the acquired position information, and transmits it to the parent device 30 to which the child device 20 belongs via the closed communication network. Next, in step S12, the microcontroller 21 determines whether or not a warning display change instruction, which is warning display data, has been received from the parent device 30. If the warning display change instruction has not been received (NO), the process waits until it is acquired. If the microcontroller 21 determines that the warning display change instruction has been received (YES), the process proceeds to step S13. In step S13, the microcontroller 21 turns on or off the warning display on the warning indicator 24 in accordance with the warning display change instruction. Thereby, in the case of the warning display change instruction issued when the underpass 3 is submerged, a warning is displayed in the warning display mode shown in FIG. 5 or FIG. In the case of the warning display change instruction issued when the submergence has been resolved, the warning display displayed on the warning display 24 of the slave unit 20 is canceled. When the process of step S13 is completed, the process returns to step S12, and the processes of step S12 and step S13 are repeated. The handset processing is executed as long as the power supply device 26 of the handset 20 is turned on, and the handset processing ends when the power supply device 26 is turned off.

  Next, FIG. 16 shows a flowchart of parent device processing executed by the parent device 30. When the master unit 30 is installed at a predetermined location and the power supply 34 is turned on, the microcontroller 31 starts the master unit process shown in FIG. When the parent device process is started, in step S20, the microcontroller 31 determines whether or not a warning display change instruction has been received from the information distribution server 12a. If the warning display change instruction has not been received (NO), the process waits until it is acquired. If the microcontroller 31 determines that the warning display change instruction has been received (YES), the process proceeds to step S21. In step S21, the microcontroller 21 transmits the received warning display change instruction to the child device 20 belonging to the parent device 30. When the process of step S21 is completed, the process returns to step S20, and the processes of step S20 and step S21 are repeatedly performed. The master unit process ends when the power supply 34 is turned off.

Next, a flowchart of the data processing server process executed by the data processing server 12b of the information providing unit 12 is shown in FIG.
The data processing server process shown in FIG. 17 starts when the data processing server 12b is powered on. When activated, in step S30, the CPU 71 detects the water level of the water level gauge 15 and measures the submerged water level of the underpass 3. Next, in step S31, the CPU 71 transfers the flood level data to the information distribution server 12a, and proceeds to step S32. In step S <b> 32, the CPU 71 stands by until a predetermined time t has elapsed. When t time elapses in step S32, the process returns to step S30 and the processes from step S30 to step S33 are repeated. The data processing server process ends when the power of the data processing server 12b is turned off. The time t should be several minutes to several tens of minutes (or several hours) if the submergence level has not reached a significant level, and within a few seconds if the submergence level has reached a significant level. is there.

Next, FIG. 18 shows a flowchart of data processing device processing executed by the data processing device 50 of the information distribution server 12a. The data processing apparatus process shown in FIG. 18 starts when the information distribution server 12a is powered on.
When the data processor processing is started, in step S40, the CPU 71 determines whether or not the flood level data indicating that the underpass 3 has been flooded has been received from the data processing server 12b. If the flood level data is not received (NO), the process waits until it is acquired. If the CPU 71 determines that the flood level data is received (YES), the process proceeds to step S41. In step S41, the CPU 71 determines whether or not the received flood level of the underpass 3 has exceeded a threshold value indicating that the flood has occurred. If the CPU 71 determines that the submergence level has exceeded the threshold (YES), the process proceeds to step S42. In step S42, the CPU 71 displays the warning display change instruction delivery data for displaying a warning because the submergence level has exceeded the threshold. Create If the CPU 71 determines in step S41 that the flood level does not exceed the threshold value (NO), the process proceeds to step S43, and the distribution data of the warning display change instruction for canceling the warning display is created. However, if a warning display change instruction for displaying a warning in the previous process has not been created, no process is performed in step S43. When the processing in step S42 or step S43 is completed, in step S44, the CPU 71 accesses the base unit / slave unit registration DB 52 and communicates with the base unit 30 of the closed communication network constructed in the underpass 3 and the underpass 3. The parent devices A and B or the parent devices A and C of the closed communication network constructed on the road are determined as distribution destinations. When the process of step S44 ends, the process returns to step S40 and the processes of step S40 to step S44 are repeatedly executed. The data processing device process ends when the information distribution server 12a is powered off.

Next, FIG. 19 shows a flowchart of information distribution server processing executed by the information distribution server 12a. The information distribution server process shown in FIG. 19 starts when the information distribution server 12a is powered on.
When the information distribution server process is activated, in step S50, the CPU 61 determines whether or not the data processing apparatus 50 has created distribution data for the master unit. Here, if the distribution data to the parent device has not been created (NO), the process waits until it is created. If the CPU 61 determines that the distribution data to the parent device has been created (YES), the process proceeds to step S51. In step S51, the CPU 61 transmits a warning display change instruction, which is the distribution data created in step S42 or step S43 of the data processing apparatus process, to the distribution destination master unit determined in step S44 of the data processing apparatus process. When the process of step S51 is completed, the process returns to step S50, and the processes of steps S50 and S51 are repeatedly executed. The information distribution server process ends when the information distribution server 12a is powered off.

  As described above, the data processing server 12b monitors the flood level of the underpass 3 detected by the water level gauge 15, and transfers the flood level data to the information distribution server 12a every predetermined time. The data processing device 50 in the information distribution server 12a that has received the submergence level data creates distribution data for a warning display change instruction that displays a warning if the submergence level exceeds a threshold value. When the threshold value is not exceeded, the distribution data of the warning display change instruction for canceling the warning display is created. Next, the parent device 30 of the closed communication network constructed in the flooded underpass 3 and the parent device of the closed communication network constructed on the road leading to the underpass 3 are determined as distribution destinations. Then, when the distribution data is generated, the information distribution server 12a transmits the generated distribution data to the determined distribution destination master unit. The master unit that has received the distribution data transmits a warning display change instruction to the slave unit belonging to its own closed communication network. The slave unit that has received this warning display change instruction displays a warning according to the warning display change instruction. Thus, when the underpass 3 is submerged, a warning is displayed on the road before and after the underpass 3 and in the direction of entering the underpass 3 as shown in FIG. 4 or 7. That is, when the underpass 3 is submerged, it is possible to reliably tell the vehicle that is about to enter the underpass 3 that the underpass 3 is submerged so that the vehicle can be braked sufficiently. Therefore, it is possible to prevent the vehicle from entering the flooded underpass 3 as much as possible.

The subunit | mobile_unit 20 of the underpass warning display system concerning the Example of this invention is realizable by integrating or attaching a terminal device to a road accessory as mentioned above. The configuration of this terminal device is the same as the configuration of the slave unit 20 shown in FIG. FIG. 20 shows a configuration of the terminal device 300 when the terminal device is a parent device having the function of the child device 20.
A terminal device 300 shown in FIG. 20 includes a microcontroller 301, a positioning device 303, a warning indicator 304, a closed communication network communication I / F 305, and a wide communication network communication I / F 306, which are connected by a bus. . In addition, a power supply device 308 that supplies power to each unit is provided. The microcontroller 301 is a control unit that performs overall control of the operation of the terminal device 300 and has a clock function. Specifically, the microcontroller 301 operates as the terminal device 300 having the functions of the child device 20 and the parent device 30 by executing a control program for the terminal device 300 stored in the microcontroller 301. That is, the position information of the point where the terminal device 300 is installed is written in the temporary memory. In this case, the position information of the terminal device 300 is the position information measured by the position positioning device 303 using GPS or the like, or the position information of the terminal device 300 that is directly input. Further, when a switch (not shown) is turned on and power is turned on from the power supply device 308, the terminal device 300 is initialized. Then, when the acquisition of the position information is completed, the unique handset ID assigned to the terminal device 300 is added to the position information of the terminal device 300 written in the temporary memory.

 In addition, the microcontroller 301 receives the position information with the child device ID transmitted from the child device 20 belonging to the closed communication network to which the own device belongs through the closed communication network communication I / F 305 and writes the position information in the temporary memory. Then, the microcontroller 301 provides the location information with the slave unit ID received from the slave unit 20 and the location information with the slave unit ID acquired by the terminal device 300 via the wide area communication network communication I / F 306. To the unit 12. When the warning display change instruction is received from the information distribution server 12a of the information providing unit 12 via the wide area communication network communication I / F 306, the microcontroller 301 receives the instruction in the slave unit 20 of the closed area communication network to which the own apparatus belongs. The warning display change instruction is transmitted, and a warning display according to the warning display change instruction is performed on the warning display 304. The warning indicator 304 can be constituted by a light emitting device such as a light emitting diode (LED). Note that the power supply device 308 can be composed of a large-capacity capacitor or a secondary battery and a solar panel for charging.

As above-mentioned, the subunit | mobile_unit 20 is realizable with the gaze guidance mark which is one of the road accessories. Further, by integrating the terminal device 300 having the configuration shown in FIG. 20 with the line-of-sight guidance mark, a parent device having the function of the slave 20 can be realized with the line-of-sight guidance mark. The detailed structure of this gaze guidance mark is shown in FIGS. 21 is a perspective view showing the configuration of the gaze guidance mark, FIG. 22 is an assembly view showing the configuration of the gaze guidance mark in a perspective view, and FIG. 23 is another assembly diagram showing the configuration of the gaze guidance mark in a perspective view. It is. FIGS. 21 to 23 show an example in which the line-of-sight guidance mark is shown as the line-of-sight guidance mark 100 and the terminal device 001 integrated with the line-of-sight guidance mark 100 is the terminal device 300.
As shown in these drawings, the line-of-sight guide 100 used as the slave unit 20 or the slave unit 20 having the function of the master unit 30 in the underpass warning display system 1 according to the embodiment of the present invention is cylindrical. A vertically elongated cylindrical case 110 made of resin and a resin or metal base 113 attached to the lower end of the cylindrical case 110, a terminal which will be described later in the case made of the cylindrical case 110 and the base 113. It is integrated with the device 001. The line-of-sight guide 100 functions as a line-of-sight guide used as a road accessory, and the base 113 can be fixed to a road or the like by bonding or bolts. In addition, it is possible to install water and sand inside the base 113, and in this case, it can be used as the slave 20 by simply placing the line-of-sight guide 100 on a road or the like. It can also be used as the base unit 30. Thereby, the gaze guidance mark 100 can be flexibly dealt with by installing it only when necessary (for example, at the time of heavy rain warning) and then removing it. The longitudinal length L1 of the line-of-sight guide 100 is about 300 mm to 1200 mm, and the outer diameter R1 of the base 113 is about 200 mm.

  A solar panel 111 and a GPS (Global Positioning System) antenna 112 are provided on the upper surface of the cylindrical case 110 in the line-of-sight guide 100. The solar panel 111 is a power generator that charges a secondary battery 118e, which is a power supply device for the line-of-sight guide 100, the GPS antenna 112 receives radio waves from GPS satellites, and the positioning device 118b receives the line-of-sight guide 100. The coordinates of the position where is installed. The secondary battery 118e and the positioning device 118b are disposed on a substantially circular base bottom plate 113b that is fitted to close the bottom surface of the base 113. Three rectangular openings 110a are vertically arranged in the upper part of the cylindrical case 110. Reflecting glass or a reflective sheet is embedded in the opening 110a, and a light emitting unit of the warning display unit 114 is disposed at a position inside the opening 110a to function as a visual guidance indicator. As shown in FIG. 22, the space inside the cylindrical case 110 is a storage portion 110 b, and is formed in a ring shape divided into approximately ¼ on the inner peripheral surface of the upper portion of the cylindrical case 110, and has three stages vertically. The warning display unit 114 composed of the arranged light emitting units is fixed by sticking, bonding, or the like so as to face the opening 110a, and is formed into a ring shape that is divided into almost ¼ and arranged in two columns vertically. An antenna unit 115 including a wide-area communication network antenna unit 115a and a closed-area communication network antenna unit 115b facing the display unit 114 is fixed by sticking or bonding. In the storage portion 110 b, communication lines 117 a, 117 b, and 117 c that connect the warning display portion 114 and the antenna portion 115 to the circuit portion 118 in the base portion 113 are extended to the base portion 113.

In addition, a circular upper lid portion (not shown) is fitted to the upper end of the cylindrical case 110, and a ring-shaped solar panel 111 is fixed to the upper side of the upper lid portion by sticking, bonding, or the like. A rectangular GPS antenna 112 is fixed to the upper center of the upper side by sticking or bonding. A connection line connecting the solar panel 111 and the GPS antenna 112 and the circuit unit 118 in the base 113 is extended to the base 113.
Further, as shown in FIG. 23, on the upper surface of a thin disc-shaped base bottom plate 113b fitted into the bottom surface of the base 113, there are a microcontroller 118a, a positioning device 118b, a wide area communication network communication I / F 118c, and a closed area communication network. A circuit unit 118 including a communication I / F 118d and a secondary battery 118e is fixed by bonding, screwing, or the like. Each part of the circuit unit 118 is connected by a bus. The wide area communication network antenna unit 115a and the wide area communication network communication I / F 118c are connected by a communication line 117a, and the closed area communication network antenna unit 115b and the closed area communication network communication I / F 118d are connected by a communication line 117b. The GPS antenna 112 and the positioning device 118b are connected by a line. Note that the wide area communication network communication I / F 118c corresponds to Internet communication and public communication, and the closed area communication network communication I / F 118d corresponds to a wireless closed area communication network such as a wireless LAN.

  In order to assemble the line-of-sight guidance mark 100, as shown in FIG. 22, the warning display part 114 and the antenna part 115 are housed in a cylindrical case 110 and fixed in the housing part 110b. Next, the solar panel 111 and the GPS antenna 112 and the upper lid are inserted into the cylindrical case 110 from above, the upper lid is fitted into the upper end of the cylindrical case 110, and the solar panel 111 and the GPS antenna 112 are inserted. Is fixed by sticking, bonding or screwing. Then, each through line protruding from the lower surface of the cylindrical case 110 is connected to each part of the circuit unit 118 fixed on the base bottom plate 113b, and the base cover part 113a is disposed on the cylindrical case 110. Then, it is inserted from above into the through hole 113c of the base lid portion 113a. The base lid portion 113a is made of resin or metal, and a circular through hole 113c is formed in the approximate center, the upper surface is an inclined surface having a high central portion, and a ring portion 113d that is fitted into the base bottom plate 113b is formed on the outer periphery. ing. Therefore, the base lid portion 113a is inserted into the cylindrical case 110 up to the base bottom plate 113b, and the ring portion 113d is fitted into the outer peripheral edge of the base bottom plate 113b. Thereby, the gaze guidance mark 100 can be assembled.

  Since there is a possibility that water may enter the inside of the line-of-sight guidance mark 100, each part of the terminal device 001 is provided with waterproof means. In addition, a vibration generator or the like can be selected as appropriate in place of the solar panel 111 so as to match the installation environment. Further, instead of providing the opening 110a, the cylindrical case 110 may transmit light. From the solar panel 111, the GPS antenna 112 and the positioning device 118b, the antenna unit 115, the closed communication network communication I / F 118d and the wide communication network communication I / F 118c, the microcontroller 118a, the secondary battery 118e, and the warning display unit 114 The terminal device 001 has a structure built in the visual guidance indicator 100 so as not to disturb the function of the visual guidance indicator 100. The gaze guidance mark 100 can be self-supporting, and if the closed communication network is wireless, it can be installed directly on the ground other than the road where external power cannot be secured, and can be installed in parks, shelters, open spaces, paddy fields, fences, houses It can also be installed on the ground such as in a garden or riverbed.

  The cylindrical case 110 in the line-of-sight guide 100 described above is not limited to a cylindrical shape, but has a shape that is vertically elongated and has a storage space inside, for example, an elliptical cross section, a polygon more than a triangle, or a shape such as a flower crown. It can be a cylindrical case. In addition, although the opening 110a has a rectangular shape, a circular, elliptical, polygonal, or corolla shape may be used instead of the rectangular shape as long as the warning display unit 114 can emit light. In addition, the number of stages of the warning display unit 114 can be set to an arbitrary number, and the shape thereof can also be a ring shape. And what is necessary is just to change the number and shape of the opening part 110a according to the structure of the warning display part 114. FIG.

Although the warning display mode in the case where the slave unit 20 is realized by a line-of-sight guidance sign that is one of the road accessories has been described above with reference to FIGS. 5 and 8, the warning display modes other than these warning display modes And the structure of a warning indicator is shown to Fig.24 (a)-(d).
A line-of-sight guide 201 shown in FIG. 24A is integrated with, for example, a terminal device 300, and has a cylindrical and vertically elongated pole portion 201a and a circular or rectangular plate shape fixed to the lower end of the pole portion 201a. The base portion 201b. The gaze guidance mark 201 is installed by fixing the base 201b to the roadside or the road. A warning display unit 210 including a three-stage ring-shaped light emitting unit is provided on the upper part of the outer peripheral surface of the pole unit 201a. The warning display unit 210 displays a warning indicating the submergence level based on the color tone of light emitted from the three-stage ring-shaped light emitting units, the number of light emitting steps, and the combination pattern of light emitting steps.
The line-of-sight guidance mark 202 shown in FIG. 24B is integrated with, for example, the terminal device 300, and has a cylindrical vertically elongated pole portion 202a and a circular or rectangular shape fixed to the lower end of the pole portion 202a. It is comprised from the plate-shaped base 202b. The line-of-sight guidance mark 202 is installed by fixing the base 202b to the roadside or the road. A warning display unit 220 including a three-stage ring-shaped light emitting unit is provided on the upper part of the outer peripheral surface of the pole unit 202a. The warning display unit 220 emits light to display an arrow graphic by the three-stage ring-shaped light emitting unit, and notifies the direction of flooding in the direction of the arrow.

Furthermore, the line-of-sight guidance mark 203 shown in FIG. 24C is integrated with, for example, the terminal device 300, and has a cylindrical vertically elongated pole portion 203a and a circular or rectangular shape fixed to the lower end of the pole portion 203a. It is comprised from the plate-shaped base 203b. The line-of-sight guidance mark 203 is installed by fixing the base 203b to the roadside or the road. A warning display unit 230 including a cylindrical light emitting unit is provided on the outer peripheral surface of the pole unit 203a. The warning display unit 230 displays a warning indicating that the vehicle has been submerged by displaying a graphic indicating that the vehicle is submerged in the cylindrical light emitting unit.
Furthermore, the line-of-sight guide mark 204 shown in FIG. 24D is integrated with, for example, the terminal device 300, and has a cylindrical and elongated pole portion 204a and a circular or rectangular shape fixed to the lower end of the pole portion 204a. It is comprised from the plate-shaped base part 204b. The line-of-sight guidance mark 204 is installed by fixing the base 204b to the roadside or the road. A warning display unit 240 including a cylindrical light emitting unit is provided on the outer peripheral surface of the pole unit 204a. The warning display unit 240 displays the warning that the submergence has occurred by displaying the characters “flood” and “submergence” on the cylindrical light emitting unit.

Although the example which implement | achieves the subunit | mobile_unit in the underpass warning display system concerning the Example of this invention with a gaze guidance mark was demonstrated, it is not restricted to a gaze guidance mark, a boundary block, a curb, a support pillar, a guard fence, a wall structure Can be realized with road accessories such as signs, delineators, road fences. In this case, the road accessory functions as a child device by integrating or mounting a terminal device having the function of the child device on the road accessory realizing the child device.
Further, in the slave unit of the underpass warning display system according to the embodiment of the present invention described above, not only GPS but also the position positioning device is used to determine the coordinates of the installed position as GLONASS, Galileo, Quasi-Zenith Satellite (QZSS). Positioning may be performed using a satellite positioning system such as the above.

001 terminal device, 1 underpass warning display system, 2 drainage equipment, 3 underpass, 3a flooded, 10 terminal group, 10a mobile phone, 10b PC, 11 communication network, 12 information provider, 12a information distribution server, 12b data processing Server, 12c database unit, 12d wide area network communication I / F, 12e communication I / F, 13 wide area network, 14a to 14m closed area network, 15 water level gauge, 20 slave units, 21 microcontroller, 23 position measuring device, 24 Warning Indicator, 25 Closed Network Communication I / F, 26 Power Supply, 30 Master Unit, 31 Microcontroller, 32 Wide Area Network Communication I / F, 33 Closed Network Communication I / F, 34 Power Supply, 41 CPU , 42 ROM, 43 RAM, 44 I / O, 45 bus, 50 data processing device, 51 Flooding information DB, 52 Master unit / slave registration information DB, 53 Precipitation DB, 61 CPU, 62 ROM, 63 RAM, 64 I / O, 65 bus, 71 CPU, 72 ROM, 73 RAM, 74 I / O, 75 bus, 100 eye guide, 110 cylindrical case, 110a opening, 110b storage, 111 solar panel, 112 antenna, 113 base, 113a base lid, 113b base bottom plate, 113c through hole, 113d ring, 114 Warning display section, 115 antenna section, 115a Wide area communication network antenna section, 115b Closed communication network antenna section, 117a, 117b, 117c communication line, 118 circuit section, 118a microcontroller, 118b Positioning device, 118c Wide area communication network communication I / F, 118d Closed network communication I / , 118e secondary battery, 201 line-of-sight guide, 201a pole part, 201b base, 202 line-of-sight guide, 202a pole part, 202b base, 203 line-of-sight guide, 203a pole part, 203b base, 204 line-of-sight guide, 204a pole part 204b Base, 210 Warning display unit, 220 Warning display unit, 230 Warning display unit, 240 Warning display unit, 300 Terminal device, 301 Microcontroller, 303 Positioning device, 304 Warning display unit, 305 Closed network communication I / F 306 Wide area network I / F, 308 Power supply device, 500 Flooding monitoring device, 501 Radar unit, 502 Bulletin board, 503 Underpass, 510a, 510b, 510c Radar reflector, a1-m1 parent device, a2-ai child device , B2 to bj slave unit, m2 to mk child Machine

Claims (4)

It consists of a first master unit and a plurality of first slave units belonging to the first master unit, and the plurality of first slave units are concave in the advancing direction hidden below in an underpass. A first closed communication network that is installed from the road to the road entrance and constructed in the underpass;
A second master unit and a plurality of second slave units belonging to the second master unit, wherein the plurality of second slave units are installed on a road entering the underpass, and A second closed communication network built on the road entering the path;
In the concave road, a water level meter installed at a substantially central position of the concave shape,
An information providing unit that transmits a warning display change instruction to the first master unit and the second master unit when a water level detected by the water level meter exceeds a threshold value indicating that an underpass has been submerged. Prepared,
The first master unit and the second master unit that have received the warning display change instruction are assigned to the plurality of first slave units and the plurality of second slave units that belong to the closed communication network of the own unit. Sending a warning display change instruction to cause the warning display in the plurality of first slave units and the plurality of second slave units to perform a warning display according to the warning display change instruction. Path warning display system.   The underpass warning display system according to claim 1, wherein the warning display according to the warning display change instruction is a warning display indicating a height of a water level detected by the water level gauge.   2. The underpass warning display according to claim 1, wherein a road entering the underpass is an intersection, and the number of second slave units is installed on the intersecting road at the intersection. system.   The warning display according to the warning display change instruction in the plurality of second slave units installed on the intersecting road at the intersection displays the underpass direction as seen from the direction of traveling on the road in characters. 4. The underpass warning display system according to claim 3, wherein a warning display is provided.

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