JP7012305B2 - Snowfall information provision system and snowfall information provision method - Google Patents

Description

The present invention collects snowfall data acquired by the snowfall sensor by adding a communication unit to the snowfall sensor installed together with the snow-melting pipe, which is an existing infrastructure, and can grasp the snowfall distribution in a flat spread. Regarding the snowfall information provision system and the snowfall information provision method.

Providing people with information on weather forecasts has been done in various ways. On the other hand, in a region with a lot of snowfall, if not only the forecast information of the snowfall but also the information on how much snow depth is provided by the snowfall up to now is provided, the people in the region can decide the action schedule. And it will be very useful.

As such an attempt, for example, Patent Document 1 (Japanese Unexamined Patent Publication No. 2005-3563) describes an imaging means 1 for photographing a snowfall situation in an observation area and a snow depth measuring means 2 for measuring a snow depth in an observation area. , A temperature measuring means 3 for measuring the temperature of the observation area, a data processing device for transferring an image file, a snow depth / temperature graph file, and a time snow depth file to the server 6 of the Internet provider, and browsing from an Internet user terminal. A snow cover information providing system including an image G of an observation area, a snow depth / temperature graph K, and a display means 7 for displaying a time snow depth F is disclosed on one page of a possible Internet homepage 8.
Japanese Unexamined Patent Publication No. 2005-3563

According to the invention described in Patent Document 1, a user who wants to obtain snow cover information in a specific observation area can obtain an image of the specific observation area, snow depth / temperature from a user terminal such as a personal computer or a mobile phone terminal via the Internet. You can browse the graph and the time snow depth.

However, according to such a snow cover information providing system, the user can only obtain information related to a specific observation area where observation is being performed, for example, regarding the snow cover situation at each point on the map. There was a problem that information could not be obtained, so to speak, it was not possible to grasp the snow cover distribution in a flat area.

Therefore, it is conceivable to provide multiple observation points for observing the snow depth, etc., but it is difficult to additionally equip the snow depth sensor and others for the snow information providing system in terms of cost burden.

By the way, in regions where there is a lot of snowfall, a snowfall sensor and a snow-melting pipe are often equipped as a pair, and based on the data of the amount of snowfall acquired by the snowfall sensor, the paired snow-melting pipe It controlled the on / off of watering by. However, the snowfall data acquired by the snowfall sensor was used only for controlling the watering of the paired snow-melting pipes, which was a problem.

The present invention solves the above-mentioned problems, and the snowfall information providing system according to the present invention is installed at a plurality of places, and a snowfall sensor that acquires snowfall amount data per unit time at each place. A snowfall information providing system including at least a snow-melting pipe unit having at least a snow-melting pipe whose on / off is controlled based on the snowfall amount data acquired by the snowfall sensor.
The snow-melting pipe unit is provided with a unit-side communication unit that transmits / receives data via a communication line, and the snowfall amount data acquired by the snowfall sensor is transmitted from the unit-side communication unit to the communication line for communication. The device further includes an information processing device having at least a device-side communication unit that transmits / receives data via a line, an arithmetic processing unit that performs data arithmetic processing, and a data display unit that displays data. The side communication unit receives the snowfall data transmitted from the unit side communication unit, and the arithmetic processing unit of the information processing device time-integrates the received snowfall data to accumulate snowfall at a plurality of locations. The amount data is calculated, contour data of the cumulative snowfall amount is created based on the cumulative snowfall amount data at a plurality of places, and the arithmetic processing unit of the information processing apparatus time-integrates the received snowfall amount data. It is characterized in that cumulative snowfall data at a plurality of locations is calculated, and contour data of the snowfall amount is created based on the cumulative snowfall data at a plurality of locations and the melting and subsidence of the snowfall .

Further, the snowfall information providing system according to the present invention is installed at a plurality of places and is based on a snowfall sensor that acquires snowfall data per unit time at each place and snowfall data acquired by the snowfall sensor. A snowfall information providing system including a snow-melting pipe unit whose on / off control is controlled, and a unit-side communication that transmits / receives data to / from the snow-melting pipe unit via a communication line. A unit is provided, and the snowfall amount data acquired by the snowfall sensor is transmitted from the unit-side communication unit to the communication line, and data calculation processing is performed with the device-side communication unit that transmits / receives data via the communication line. Further including an information processing device having at least an arithmetic processing unit and a data display unit for displaying data, the device-side communication unit receives snowfall data transmitted from the unit-side communication unit, and receives the snowfall data. The arithmetic processing unit of the information processing apparatus calculates the cumulative snowfall data at a plurality of locations by time-integrating the received snowfall data, and the cumulative snowfall amount is calculated based on the cumulative snowfall data at the plurality of locations. When the contour data is created and the contour data of the cumulative snowfall amount is drawn on the map data, the contour interval is changed for each area of the map data .

Further, the snowfall information providing system according to the present invention is characterized in that the data display unit of the information processing apparatus displays contour data of the created cumulative snowfall amount.

Further, the snowfall information providing system according to the present invention is characterized in that the unit-side communication unit of the snow-melting pipe unit transmits on / off data of the snow-melting pipe to a communication line.

Further, in the snowfall information providing system according to the present invention, the device-side communication unit of the information processing device receives on / off data transmitted from the unit-side communication unit, and the data display unit of the information processing device is , It is characterized by displaying the received on / off data.

Further, in the snowfall information providing system according to the present invention, the snow-melting pipe unit is provided with a temperature sensor for acquiring temperature data, and the unit-side communication unit transmits the acquired temperature data to a communication line. It is characterized by that.

Further, in the snowfall information providing system according to the present invention, the device-side communication unit of the information processing device receives temperature data transmitted from the unit-side communication unit, and the arithmetic processing unit receives a plurality of received data. It is characterized in that temperature contour data is created based on the temperature data at the location of.

Further, the snowfall information providing system according to the present invention is characterized in that the data display unit of the information processing apparatus displays contour data of the created temperature.

Further, the snowfall information providing method according to the present invention is based on a snowfall sensor that is installed at a plurality of places and acquires snowfall amount data per unit time at each place, and snowfall amount data acquired by the snowfall sensor. A snow-melting pipe unit that has at least a snow-melting pipe whose on / off control is controlled and a unit-side communication unit that transmits / receives data via a communication line, and a device-side communication unit that transmits / receives data via a communication line. A method for providing snowfall information in a system including at least an information processing device having at least an arithmetic processing unit that performs arithmetic processing of data and a data display unit that displays data, and is acquired by the snowfall sensor. The step of transmitting the snowfall amount data from the unit-side communication unit to the communication line, the step of receiving the snowfall amount data transmitted from the unit-side communication unit by the device-side communication unit, and the snowfall amount of the arithmetic processing unit. The process of calculating cumulative snowfall data at multiple locations by time-integrating the data and creating contour data for snowfall based on the cumulative snowfall data at multiple locations and the melting and subsidence of snowfall . The data display unit is characterized by having a step of displaying contour data of the cumulative snowfall amount created.

Further, the snowfall information providing method according to the present invention is based on a snowfall sensor that is installed at a plurality of places and acquires snowfall data per unit time at each place, and snowfall data acquired by the snowfall sensor. A snow-melting pipe unit that has at least a snow-melting pipe whose on / off control is controlled and a unit-side communication unit that transmits / receives data via a communication line, and a device-side communication unit that transmits / receives data via a communication line. A method for providing snowfall information in a system including at least an information processing unit having at least an arithmetic processing unit that performs arithmetic processing of data and a data display unit that displays data, and is acquired by the snowfall sensor. The step of transmitting the snowfall amount data from the unit-side communication unit to the communication line, the step of receiving the snowfall amount data transmitted from the unit-side communication unit by the device-side communication unit, and the snowfall amount of the arithmetic processing unit. By integrating the data over time, cumulative snowfall data at multiple locations is calculated, and contour data for cumulative snowfall is created based on cumulative snowfall data at multiple locations, and contour data is contoured for each area of map data. It is characterized by having a step of drawing contour data of cumulative snowfall on map data by changing the density of intervals, and a step of displaying contour data of cumulative snowfall created by the data display unit. do.

In the snowfall information providing system / snowfall information providing method according to the present invention, the snow-melting pipe unit is provided with a unit-side communication unit that transmits / receives data via a communication line, and the snowfall acquired by the snowfall sensor is provided. Since the amount data is transmitted from the unit-side communication unit to the communication line, the snowfall information providing system and the snowfall information providing method according to the present invention can be installed in various places without incurring a large cost. By collecting the snowfall amount data acquired by multiple snowfall sensors, it is possible to grasp the snowfall distribution in the planar spread on the map.

The snowfall information providing system and the snowfall information providing method according to the present invention utilize the existing snowfall sensor and snow-melting pipe infrastructure, and connect the snowfall amount data and other information obtained by the infrastructure to the communication line. Remote sensing can be realized via a communication line simply by adding a communication unit on the unit side. Further, in the snowfall information providing system / snowfall information providing method according to the present invention, by adding a calculation processing unit for snowfall amount data, a cumulative snowfall amount contour is drawn on a map, and a planar distribution of the snowfall situation is obtained. You will be able to grasp.

It is a figure explaining the outline of a snow-melting pipe 20. It is a block diagram of the snow-melting pipe unit 50 which concerns on this invention which controls a snow-melting pipe 20. It is a figure which shows the outline structure of the snowfall information provision system 1 which concerns on embodiment of this invention. It is a figure which shows the structural example of the data transmitted from the snow-melting pipe unit 50 to the information processing apparatus 70. It is a figure which shows the structural example of the data transmitted from the weather information transmission server 60 to the information processing apparatus 70. It is a conceptual diagram of the database 80 stored in the storage part of the information processing apparatus 70. It is a figure which shows the example of the data structure of the database DB ₁ containing the map data and the corresponding elevation data. It is a figure which shows the example of the data structure of the database DB ₂ including the map data and the installation data of a snow-melting pipe 20. It is a figure which shows the example of the data structure of the database DB ₃ including the map data and the cumulative snowfall contour interval data corresponding. It is a figure explaining the interval example of the contour interval at the time of making contour of the cumulative snowfall amount. It is a figure which shows the flowchart of the processing algorithm of an information processing apparatus 70. It is a figure which shows the display example of the operation state of the snow-melting pipe 20 by the snowfall information provision system 1 which concerns on embodiment of this invention. It is a figure which shows the flowchart of the processing algorithm of an information processing apparatus 70. It is a conceptual diagram of interpolation of cumulative snowfall data performed with reference to altitude data. It is a conceptual diagram of interpolation of cumulative snowfall data performed by referring to snow cloud data and wind direction data. It is a figure which shows the display example of the cumulative snowfall amount contour by the snowfall information provision system 1 which concerns on embodiment of this invention. It is a figure which shows the flowchart of the processing algorithm of an information processing apparatus 70. It is a figure which shows the display example of the temperature contour by the snowfall information provision system 1 which concerns on embodiment of this invention. It is a figure which shows the flowchart of the processing algorithm of an information processing apparatus 70. It is a figure explaining the concept of the change of the cumulative snowfall amount by melting. It is a figure explaining the concept of the change of the cumulative snowfall amount by the subsidence.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, as an existing infrastructure, an outline of the snow-melting pipe 20 already installed in a region with a lot of snowfall will be described. FIG. 1 is a diagram illustrating an outline of a snow-melting pipe 20.

The snow-melting pipe 20 melts the snow that has fallen on the road by sprinkling groundwater on the road surface. Generally, the pipe 22 embedded in the road and the pipe 22 communicate with the surface of the road. It is composed of a watering nozzle 25 having an opening on the surface side of the road and a pump 30 that pumps up and supplies groundwater to the pipe 22.

In the snow-melting pipe 20, the pump 30 is driven at the time of snowfall to turn on the watering by the snow-melting pipe 20, and when the snowmelt is completed, the pump 30 is stopped to turn off the watering by the snow-melting pipe 20. The on / off of the snow-melting pipe 20 may be a simple configuration performed manually, but a configuration for automating the on / off of the snow-melting pipe 20 is advancing.

For the above automation, a snow-melting pipe unit 50 that detects the amount of snowfall and controls the on / off of the snow-melting pipe 20 is often installed side by side with the snow-melting pipe 20. In the snowfall information providing system 1 according to the present invention, by newly providing a communication unit for the snow-melting pipe unit 50, information from the snow-melting pipe units 50 installed at a plurality of places in the snowfall region can be obtained. I try to collect and use it.

FIG. 2 is a block diagram of a snow-melting pipe unit 50 used in the present invention for controlling the snow-melting pipe 20 and transmitting information such as the amount of snowfall.

The snow-melting pipe unit 50 has a main control unit 51 including a microcomputer or the like, and various detected data are transmitted to the main control unit 51. Further, the main control unit 51 transmits a control signal based on the data processing by the main control unit 51.

The snowfall sensor 53 is installed in the vicinity of the snow-melting pipe 20 to be controlled and detects the amount of snowfall. As the snowfall sensor 53, for example, an optical sensor can be used. The snowfall amount data detected by the snowfall sensor 53 is transmitted to the main control unit 51.

Here, the snowfall amount data is data related to the snowfall amount per unit time. The unit of the "snowfall amount" in the snowfall amount data may be any unit as long as it represents the amount of snowfall, but in the present embodiment, the "snowfall amount" is accumulated (and the snowfall sensor 53). It shall be expressed by the height of snow [cm] (assumed from the detection data). Therefore, in the present embodiment, the "snowfall amount data" is in units of the height [cm / hour] of the accumulated snow per unit time. Further, the "cumulative snowfall amount" is defined as the amount obtained by integrating the snowfall amount data over time. That is, the "cumulative amount of snowfall" corresponds to the height [cm] of snow that is assumed to have accumulated in a predetermined time.

Further, in this specification, "snow cover amount" and "snowfall amount" are defined as different amounts. The former is the amount that includes the amount of snow that has fallen (melts) and sinks (settles) under the weight of its own weight over time, while the latter considers the melting and settling of the snow that has fallen. The amount that has not been.

Further, the snow-melting pipe unit 50 includes a temperature sensor 54, and transmits the detected temperature data to the main control unit 51. The main control unit 51 makes a judgment based on various detection data acquired from the snowfall sensor 53 and the temperature sensor 54, and turns on / off the snow-melting pipe control unit 57 (motor) that drives the pump 30 of the snow-melting pipe 20. It is designed to emit a control signal.

Further, the snow-melting pipe unit 50 is provided with a unit-side communication unit 58, and data can be transmitted and received to and from the communication network N via the unit-side communication unit 58. The main control unit 51 issues control to at least the snowfall amount data acquired from the snowfall sensor 53, the temperature data acquired from the temperature sensor 54, and the snow extinguishing pipe 20 via the unit-side communication unit 58. It is designed to transmit signals (on / off data).

The unit-side communication unit 58 may be a wired communication unit or a wireless communication unit, but the latter communication unit is more preferable.

FIG. 3 is a diagram showing an outline configuration of the snowfall information providing system 1 according to the embodiment of the present invention. In the snowfall information providing system 1 according to the present invention, the information processing device 70 collects the information from the snow-melting pipe unit 50 as described above installed in a plurality of places in the snowfall region by the information processing device 70 via the communication network N. It is configured to do.

The information processing device 70 includes a device-side communication unit that transmits / receives data via a communication line, an arithmetic processing unit that performs data arithmetic processing, a storage unit that stores data, and a data display unit that displays data. It is possible to use a personal computer or the like which has and is widely used at present. Of course, an information processing device 70 other than the personal computer may be used as appropriate.

The information processing device 70 is also connected to the communication network N and is configured to be able to receive information from the weather information transmission server 60 that transmits various weather information.

Next, the structure of the data received by the information processing apparatus 70 of the snowfall information providing system 1 according to the present invention as described above will be described.

FIG. 4 is a diagram showing a structural example of data transmitted from the snow-melting pipe unit 50 to the information processing device 70. The data _Do transmitted from the snow-melting pipe unit 50 to the information processing device 70 and received on the information processing device 70 side includes at least D ₁ , D ₂ , D ₃ , and D ₄ as data frames.
, D ₅ are included.

"Date data" related to the date is described in the data frame D ₁ , "time data" related to the time is described in the data frame D ₂ , and the data frame D ₃ is detected by the snowfall sensor 53. The "snowfall data" is described, the "temperature data" detected by the temperature sensor 54 is described in the data frame D ₄ , and the operating status (on / off) of the snow-melting pipe 20 is described in the data frame D ₅ . ) Is described as "on / off data".

Each of the above data is used when creating contour data of cumulative snowfall, and details will be described later. Further, all the data _Do as described above is stored as a history in the storage unit of the information processing apparatus 70, and is used for various data processing.

Next, the data transmitted from the weather information transmission server 60 will be described. FIG. 5 is a diagram showing a structural example of data transmitted from the weather information transmission server 60 to the information processing device 70. The data WD _o transmitted from the weather information transmission server 60 to the information processing device 70 and received on the information processing device 70 side includes at least four data frames, WD ₁ , WD ₂ , WD ₃ , and WD ₄ . There is.

"Date data" related to the date is described in the data frame WD ₁ , "time data" related to the time is described in the data frame WD ₂ , and "snow cloud data" is described as weather information in the data frame WD ₃ . Is described, and "wind direction data" is described as weather information in the data frame WD _4. Each of the above data is used when creating contour data of cumulative snowfall, but the details will be described later. .. Further, all the data WD _o as described above is stored as a history in the storage unit of the information processing apparatus 70, and is used for various data processing.

Next, each database prepared in advance and stored in the storage unit (not shown) of the information processing apparatus 70 will be described. FIG. 6 is a conceptual diagram of the database 80 stored in the storage unit of the information processing apparatus 70.

The database 80 stored in the storage unit of the information processing apparatus 70 includes at least three databases, a database DB ₁ , a database DB ₂ , and a database DB ₃ .

Database DB ₁ is a database in which elevation data of each location is stored on map data. A conceptual diagram of this database DB ₁ is shown in FIG. FIG. 7 is a diagram showing an example of a data structure of database DB ₁ including elevation data corresponding to map data. As shown in FIG. 7, the altitude values such as the altitude values of 10 m, 20 m, and 30 m are stored in the map data.

The database DB ₂ is a database in which the installation status of the snow-melting pipe unit 50 installed together with the snow-melting pipe 20 is stored on the map data. A conceptual diagram of this database DB ₂ is shown in FIG. FIG. 8 is a diagram showing an example of a data structure of the database DB ₂ including map data and installation data of the snow-melting pipe 20. In FIG. 8, the dotted line ◯ indicates the installation location of the snow-melting pipe unit 50.

The database DB ₃ is a database in which data related to how to set the contour interval when drawing the contour of the cumulative snowfall amount on the map data is stored. A conceptual diagram of this database DB ₃ is shown in FIG. FIG. 9 is a diagram showing an example of the data structure of the database DB ₃ including the map data and the corresponding cumulative snowfall contour interval data. As shown in FIG. 9, the database DB ₃ shows the contour intervals when the information processing apparatus 70 creates the cumulative snowfall contour.

In the example shown in FIG. 9, the contour interval created in the area on the right side of the map data is set to "dense", the contour interval created in the center area of the map data is set to "medium", and the contour interval created in the center area of the map data is set to "medium". The contour interval created in the area is set to "sparse".

The contour intervals of "dense", "medium", and "sparse" are determined by whether or not snow removal is highly necessary. The area where the contour interval is "dense" is the area where the standard of the need for snow removal is high, and conversely, the area where the contour interval is "sparse" is the area where the standard of the need for snow removal is low and the contour interval is "". The "middle" area is in the middle.

FIG. 10 is a diagram illustrating an example of a contour interval when creating a contour of the cumulative snowfall amount as described above. FIG. 10 (a) shows an example of a contour interval when the contour interval is “dense”, and FIG. 10 (b) shows an example of a contour interval when the contour interval is “medium”, and FIG. 10 (c) shows an example of the contour interval. ) Shows an example of the contour interval when the contour interval is "sparse".

For example, in FIG. 10A, when creating contours for cumulative snowfall, contours are created at intervals such as 0 cm, 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, 10 cm, 15 cm, 20 cm, and so on. .. Here, Fig. (A) is a region where the snow removal standard is high, and the fact that the area between 5 cm and 10 cm is finely carved at 1 cm is the information between 5 cm and 10 cm in determining whether or not to remove snow. Because it is important.

An example of data processing in the information processing apparatus 70 of the snowfall information providing system 1 according to the present invention having the above-described configuration will be described. FIG. 11 is a diagram showing a flowchart of the processing algorithm of the information processing apparatus 70.

In FIG. 11, in step S101, the information processing apparatus 70 acquires on / off data from all the snow-melting pipe units 50. Next, in step S102, the operating status of the snow-melting pipe 20 is grasped based on the acquired on / off data and the database DB ₂ , and the operating status of the snow-melting pipe 20 is map data on the display unit of the information processing apparatus 70. Display above. FIG. 12 shows a display example according to step S102.

As described above, according to the snowfall information providing system 1 according to the present invention, the operating status of the snow-melting pipe 20 can be listed on the map data, and the overall picture of the operating status of the snow-melting pipe 20 can be accurately grasped. It can be carried out.

Next, another data processing example in the information processing apparatus 70 of the snowfall information providing system 1 according to the present invention will be described. FIG. 13 is a diagram showing a flowchart of the processing algorithm of the information processing apparatus 70.

In step S201, the information processing apparatus 70 acquires snowfall amount data from all the snow-melting pipe units 50 and stores it in a storage unit (not shown) as a history.

In step S202, the cumulative snowfall amount at each snow-melting pipe unit 50 installation location is calculated by time-integrating the snowfall amount data left as a history in the storage unit (not shown).

Subsequently, the elevation data is acquired from step S203 database DB ₁ , and step S2.
In 04, snow cloud data and wind direction data are acquired from the weather information transmission server 60.

In step S205, the cumulative snowfall data at the point where the cumulative snowfall is not measured, which is not the location where the snow-melting pipe unit 50 is installed, is calculated by interpolation according to the altitude data, the snow cloud data, and the wind direction data.

Here, the use of elevation data in interpolation will be described. FIG. 14 is a conceptual diagram of interpolation of cumulative snowfall data performed with reference to altitude data. FIG. 14 illustrates a method of interpolating the cumulative snowfall at unknown locations P and P', where A is the cumulative snowfall at location A (known) and B is the cumulative snowfall at location B (known). There is.

FIG. 14A is a diagram illustrating the interpolation of the cumulative snowfall amount P of the place P when the place A and the place B have the same altitude. Here, the cumulative snowfall amount _P is set with _KA and KB as predetermined coefficients.
P = K _A x A + KB x _B
Can be calculated by.

On the other hand, FIG. 14B is a diagram illustrating the interpolation of the cumulative snowfall amount P'of the place P'when the altitude of the place B is higher than the altitude of the place A. Here, the cumulative snowfall _P'has KA and _KB'as predetermined coefficients.
P'= K _A x A + KB'x _B
Calculated by. However, since the altitude of place _B is higher than that of place P'and the influence from place _B can be estimated to be small, KB'<KB is set.

As described above, in the snowfall information providing system 1 according to the present invention, the altitude data is taken into consideration, and a more accurate cumulative snowfall amount contour is created.

Next, the use of snow cloud data and wind direction data in interpolation will be described. FIG. 15 is a conceptual diagram of interpolation of cumulative snowfall data performed with reference to snow cloud data and wind direction data. FIG. 15 is a bird's-eye view of A, B, C, D, and P.

In FIG. 15, A is the cumulative snowfall at location A (known), B is the cumulative snowfall at location B (known), C is the cumulative snowfall at location C (known), and D is the cumulative snowfall at location D. The amount (known) is used, and the method of interpolating the cumulative snowfall amount at unknown places P and P'is shown.

FIG. 15A is a diagram illustrating the interpolation of the cumulative snowfall amount P of the place P when there is no snow cloud and there is no wind. Here, the cumulative snowfall P has K _A , _{KB, K C ,} and K _D as predetermined coefficients.
P = K _A x A + KB x _B + K _C x C + K _D x D
Can be calculated by.

On the other hand, FIG. 15B is a diagram illustrating the interpolation of the cumulative snowfall amount P'of the place P when the snow cloud data is applied to the place A and the place B and the wind direction data of the northwest is present. Here, the cumulative snowfall P'has K _A ', _{KB', K C ,} and K _D as predetermined coefficients.
P'= K A'x _A + KB'x _B + K _C x C + K _D x D
Calculated by. However, due to the relationship between the snow clouds and the wind direction, the cumulative snowfall amount _P'at the place P is expected to be greatly affected by the places _A and _B , so KA'> KA and KB'> _KB .

As described above, in the snowfall information providing system 1 according to the present invention, the snow cloud data and the wind direction data are taken into consideration, and a more accurate cumulative snowfall amount contour is created.

In this embodiment, the wind direction data is acquired from the weather information transmission server 60 and used. However, if the wind direction data is expected to be constant throughout the snowfall season, the weather information transmission server It is not necessary to acquire the wind direction data from 60, and a fixed value wind direction data (excellent wind direction data) can be used.

Returning to the flowchart of FIG. 13, in step S206, the cumulative snowfall contour interval data (database DB ₃ ) is acquired, and in step S207, the cumulative snowfall contour data is created at the acquired cumulative snowfall contour interval.

In step S208, the cumulative snowfall contour data created on the display unit of the information processing apparatus 70 is displayed on the map data. FIG. 16 shows a display example according to step S208. FIG. 16 is a diagram showing a display example of a cumulative snowfall amount contour by the snowfall information providing system 1 according to the embodiment of the present invention.

As described above, in the snowfall information providing system 1 according to the present invention, the information processing apparatus 70 collects the snowfall amount data acquired by the snowfall sensors 5 in the plurality of snow-melting pipe units 50 installed in various places. , It is possible to grasp the snow cover distribution in the planar spread on the map.

Next, another data processing example in the information processing apparatus 70 of the snowfall information providing system 1 according to the present invention will be described. FIG. 17 is a diagram showing a flowchart of the processing algorithm of the information processing apparatus 70.

The information processing apparatus 70 acquires temperature data from all the snow-melting pipe units 50 in step S301, and subsequently, in step S302, the temperature data at a point not measured is calculated by interpolation.

In the next step S303, the temperature contour data is displayed on the map data on the display unit of the information processing apparatus 70. A display example in step S303 is shown in FIG. FIG. 18 is a diagram showing an example of displaying a temperature contour by the snowfall information providing system 1 according to the embodiment of the present invention.

As described above, in the snowfall information providing system 1 according to the present invention, it is possible to grasp the temperature distribution in the planar spread on the map.

Next, another data processing example in the information processing apparatus 70 of the snowfall information providing system 1 according to the present invention will be described. The snowfall information providing system 1 according to the present invention is configured to be able to provide not only information related to the amount of snowfall but also information related to the amount of snowfall. Hereinafter, data processing for this purpose will be described.

The amount of snow cover is the amount including the amount of snow that has fallen and melts (melts), sinks under the weight (self-weight) with time, and compresses (settles). The "melting amount" is defined as the height of snow [unit: cm] that decreases as the accumulated snow melts. In addition, the "sediment amount" is defined as the height [unit: cm] of the snow that decreases due to the sedimentation of the accumulated snow.

FIG. 19 is a diagram showing a flowchart of the processing algorithm of the information processing apparatus 70.

In step S401, the information processing apparatus 70 acquires snowfall amount data and temperature data from all the snow-melting pipe units 50 and stores them in a storage unit (not shown) as a history.

In step S402, the cumulative snowfall amount at each snow-melting pipe unit 50 installation location is calculated by time-integrating the snowfall amount data left as a history in the storage unit (not shown).

In the subsequent step S403, the amount of melting and the amount of sedimentation are calculated from the cumulative amount of snowfall and temperature data. The amount of melting is the height [cm] that decreases from the cumulative amount of snowfall due to the melting of snow. The outline of calculating such a melting amount will be described with reference to FIG. 20. FIG. 20 is a diagram illustrating the concept of change in cumulative snowfall due to melting. In FIG. 20, the left side schematically shows the initial cumulative snowfall amount, and the right side schematically shows the reduction amount due to melting. Here, assuming that k is the melting coefficient and T is the temperature data, the melting amount M is calculated by M = kT.

Further, the amount of sedimentation is a height [cm] that decreases from the cumulative amount of snowfall by being compressed by the weight due to its own weight. The outline of calculating such a sedimentation amount will be described with reference to FIG. 21. FIG. 21 is a diagram illustrating the concept of change in cumulative snowfall due to subsidence. In FIG. 21, the left side schematically shows the initial cumulative snowfall amount, and the right side schematically shows the sedimentation amount in a certain layer of interest. Here, the initial height of a certain layer of interest is L [cm], and the height after sedimentation is L'[c].
m]. Further, assuming that the load of snow on the layer of interest is W and the compression viscosity coefficient of snow (function of snow density) is η, L'is
L'= L (1-W / η)
Can be obtained by. Since FIG. 21 calculates the height change of only a certain layer of interest due to sedimentation, the total height change (settlement amount) due to sedimentation is taken into consideration for all layers over the height of the cumulative snowfall. Can be calculated.

Next, in step S404, the amount of snowfall is calculated from the cumulative amount of snowfall, the amount of melting, and the amount of sedimentation. Specifically, (snow cover amount) = (cumulative snowfall amount)-(melting amount)-(settling amount)
The amount of snow cover is calculated by.

In step S405, the snow cover data at the points where the snow cover is not calculated is calculated by interpolating based on the snow cover at the plurality of points calculated in step S404.

In step S206, the created snow cover amount contour data is displayed on the map data on the display unit of the information processing apparatus 70.

According to such data processing related to FIG. 19, it is possible to grasp the planar distribution on the map of the information related to the amount of snow remaining on the roof and the like.

In the snowfall information providing system 1 and the snowfall information providing method according to the present invention as described above, the snow-melting pipe unit 50 is provided with a unit-side communication unit 58 for transmitting and receiving data via a communication line, and snowfall is provided. Since the snowfall amount data acquired by the sensor 53 is transmitted from the unit-side communication unit 58 to the communication line, according to the snowfall information providing system 1 and the snowfall information providing method according to the present invention, a large cost is incurred. By collecting the snowfall amount data acquired by the plurality of snowfall sensors 53 installed in various places without applying the snowfall, it is possible to grasp the snowfall distribution in the planar spread on the map.

Further, the snowfall information providing system 1 and the snowfall information providing method according to the present invention utilize the infrastructure of the existing snowfall sensor 53 and the snow-melting pipe 20, and the snowfall amount data and other information obtained by the infrastructure are used. Remote sensing can be realized via the communication line simply by adding a unit-side communication unit that connects to the communication line.

Further, in the snowfall information providing system 1 and the snowfall information providing method according to the present invention, the cumulative snowfall amount contour is drawn on the map by adding the calculation processing unit (information processing device 70) for the snowfall amount data. , It will be possible to grasp the planar distribution of snowfall conditions.

The data collected from the snow-melting pipe unit 50 to the information processing device 70 and stored in the storage unit (not shown) of the information processing device 70 is the instantaneous snowfall amount, time-series snowfall amount, cumulative snowfall amount, and snowfall in the observation area. In addition to calculating the amount, it is possible to draw the cumulative snowfall contour and the snowfall contour on the map to grasp the area distribution.

1 ... Snowfall information provision system 20 ... Snow-melting pipe 22 ... Pipe 25 ... Watering nozzle 30 ... Pump 50 ... Snow-melting pipe unit 51 ... Main control unit 53 ...・ Snowfall sensor 54 ・ ・ ・ Temperature sensor 57 ・ ・ ・ Snow-melting pipe control unit 58 ・ ・ ・ Unit side communication unit 60 ・ ・ ・ Meteorological information transmission server 70 ・ ・ ・ Information processing device 80 ・ ・ ・ Database N ・ ・ ・Communication network

Claims (10)

At least a snowfall sensor installed in multiple locations and acquiring snowfall data per unit time at each location, and a snow-melting pipe whose on / off control is controlled based on the snowfall data acquired by the snowfall sensor. It is a snowfall information providing system including a snow-melting pipe unit that has
The snow-melting pipe unit is provided with a unit-side communication unit that transmits / receives data via a communication line, and the snowfall amount data acquired by the snowfall sensor is transmitted from the unit-side communication unit to the communication line.
Further includes an information processing device having at least a device-side communication unit that transmits / receives data via a communication line, an arithmetic processing unit that performs data arithmetic processing, and a data display unit that displays data.
The device-side communication unit receives the snowfall data transmitted from the unit-side communication unit, and receives the snowfall data.
The arithmetic processing unit of the information processing apparatus calculates the cumulative snowfall data at a plurality of locations by integrating the received snowfall data over time, and the cumulative snowfall amount is calculated based on the cumulative snowfall data at the plurality of locations. Create contour data and
The arithmetic processing unit of the information processing apparatus calculates the cumulative snowfall data at a plurality of locations by time-integrating the received snowfall data, and the cumulative snowfall data at the plurality of locations and the melting and settling of the snowfall. A snowfall information providing system characterized by creating contour data of the amount of snowfall based on . At least a snowfall sensor installed in multiple locations and acquiring snowfall data per unit time at each location, and a snow-melting pipe whose on / off control is controlled based on the snowfall data acquired by the snowfall sensor. It is a snowfall information providing system including a snow-melting pipe unit that has
The snow-melting pipe unit is provided with a unit-side communication unit that transmits / receives data via a communication line, and the snowfall amount data acquired by the snowfall sensor is transmitted from the unit-side communication unit to the communication line.
Further includes an information processing device having at least a device-side communication unit that transmits / receives data via a communication line, an arithmetic processing unit that performs data arithmetic processing, and a data display unit that displays data.
The device-side communication unit receives the snowfall data transmitted from the unit-side communication unit, and receives the snowfall data.
The arithmetic processing unit of the information processing apparatus calculates the cumulative snowfall data at a plurality of locations by integrating the received snowfall data over time, and the cumulative snowfall amount is calculated based on the cumulative snowfall data at the plurality of locations. Along with creating contour data
A snowfall information providing system characterized by changing the density of contour intervals for each area of map data when drawing contour data of cumulative snowfall on map data . The snowfall information providing system according to claim 1 or 2 , wherein the data display unit of the information processing apparatus displays contour data of the created cumulative snowfall amount. The snowfall information provided according to any one of claims 1 to 3 , wherein the unit-side communication unit of the snow-melting pipe unit transmits on / off data of the snow-melting pipe to a communication line. system. The device-side communication unit of the information processing device receives the on / off data transmitted from the unit-side communication unit, and the data display unit of the information processing device displays the received on / off data. The snowfall information providing system according to claim 4 . The snow-melting pipe unit is provided with a temperature sensor for acquiring temperature data, and the unit-side communication unit transmits the acquired temperature data to a communication line, according to claims 1 to 5 . The snowfall information providing system described in any one of the items. The device-side communication unit of the information processing device receives the temperature data transmitted from the unit-side communication unit, and at the same time,
The snowfall information providing system according to claim 6 , wherein the arithmetic processing unit creates temperature contour data based on temperature data at a plurality of received locations. The snowfall information providing system according to claim 7 , wherein the data display unit of the information processing apparatus displays contour data of the created temperature. A snowfall sensor installed in multiple locations and acquiring snowfall data per unit time at each location, a snow-melting pipe whose on / off control is controlled based on the snowfall data acquired by the snowfall sensor, and a communication line. A snow-melting pipe unit having at least a unit-side communication unit that transmits / receives data via
A system including an information processing device having at least a device-side communication unit that transmits / receives data via a communication line, an arithmetic processing unit that performs data arithmetic processing, and a data display unit that displays data. It is a method of providing snow cover information,
The process of transmitting the snowfall amount data acquired by the snowfall sensor from the unit-side communication unit to the communication line, and
The process in which the device-side communication unit receives the snowfall data transmitted from the unit-side communication unit, and
The arithmetic processing unit calculates the cumulative snowfall data at a plurality of locations by integrating the snowfall data over time , and the contour of the snowfall amount is based on the cumulative snowfall data at the plurality of locations and the melting and subsidence of the snowfall. The process of creating data and
A method for providing snowfall information, which comprises a step of displaying contour data of a cumulative snowfall amount for which the data display unit is created. A snowfall sensor installed in multiple locations and acquiring snowfall data per unit time at each location, a snow-melting pipe whose on / off control is controlled based on the snowfall data acquired by the snowfall sensor, and a communication line. A snow-melting pipe unit having at least a unit-side communication unit that transmits / receives data via
A system including an information processing device having at least a device-side communication unit that transmits / receives data via a communication line, an arithmetic processing unit that performs data arithmetic processing, and a data display unit that displays data. It is a method of providing snow cover information,
The process of transmitting the snowfall amount data acquired by the snowfall sensor from the unit-side communication unit to the communication line, and
The process in which the device-side communication unit receives the snowfall data transmitted from the unit-side communication unit, and
The calculation processing unit calculates the cumulative snowfall data at a plurality of locations by integrating the snowfall data over time, and creates contour data of the cumulative snowfall based on the cumulative snowfall data at the plurality of locations.
The process of drawing contour data of cumulative snowfall on map data by changing the density of contour intervals for each area of map data, and
A method for providing snowfall information, which comprises a step of displaying contour data of a cumulative snowfall amount for which the data display unit is created.

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