JPH0442086A - Rainfall information reporting system - Google Patents

Abstract

PURPOSE:To obtain area information on rainfall in a shorter time and with finer mesh by providing a precipitation radar, an arithmetic processor, an area indicator, a precipitation data indicator, a scroll operator etc. CONSTITUTION:A precipitation radar 1 emits wave from itself in the air for every 1-2 minutes for example and measures electric power intensity due to reflection of the wave by the rain drops. The automatically measured data on precipitation at each point is input to an arithmetic processor 2. The processor 2 arithmetically processes the measured data from the radar 1, recognizes in patterns the movement status of rainfall area changing with time, and predicts future movement of the rainfall area based on the movement status. A handy branch system 4 indicates information on area map of railway in a responsible maintenance area for the user including the surroundings together with the rainfall information sent from the processor 2 correspondingly to the area map.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) This invention is a method for measuring short period of 2 to 3 minutes in a somewhat limited area that can be measured by narrow-range radar. The present invention relates to a rainfall information notification system that displays rainfall information in areas subdivided by meshes on a portable small terminal device.

(Conventional technology) Methods and techniques for predicting, forecasting, or determining rainfall conditions have been developed since ancient times from proverbs and superstitions, and in recent years have been developed into a wide variety of systems, including large-scale, wide-area systems using rainfall radars or meteorological satellites. systems are known.

Typical rainfall information notification systems that use radar include the Radar AMeDAS service provided by the Japan Meteorological Agency, or the meteorological radar system provided by the Ministry of Construction that provides information for the management and operation of dams and rivers. We are able to provide rainfall information covering a wide range of areas.

These systems are characterized by the fact that their services cover an unspecified number of people and a wide range of areas.

Therefore, there is a mesh with a certain degree of accuracy and a certain degree of roughness, for example, OO prefecture, OO region, or IKm.
If data can be provided for a ~3km mesh, the purpose can be fulfilled. A typical example is weather forecasts, and the unspecified number of people who are subject to these weather forecasts make decisions based on the data provided by the weather forecasts.

(Problem to be solved by the invention) However, in such a conventional rainfall information notification system,
As mentioned above, it is possible to provide only rough information, which satisfies some requirements, but there is a need for more detailed rainfall information in shorter cycles over a narrower range. There are some industries that do this, and their requirements are wide-ranging, so there is a problem in that it is not possible to adequately respond to the provision of short-term rainfall information in such a narrow range.

A typical example is the lunch box catering industry, where the absolute amount of catering on a given day depends on the weather that day, or - the weather at lunchtime, when demand is highest during the day. On days when major events are held, the weather is greatly affected by the weather, and there has been a desire for a device that can easily obtain rainfall information for a very narrow area, ie, one's own territory.

Furthermore, there are various types of transportation systems that require the acquisition of appropriate rainfall information in a narrow and limited area. issue an order to slow down,
It was hoped that there would be a device that could easily obtain rainfall information in a specific area, making it possible to cancel train service or, in some cases, prepare the security department to be dispatched in case of heavy rain. . As another example, a road management system will be able to more accurately display rain-related information on warning display boards based on rainfall information, and will be able to announce entrance regulations for interchanges, maximum speed limits, etc. .

However, in conventional rainfall information systems, rain gauges are installed at various points in a wide area, and this data is entered online, but the data from rain gauges is not surface data; Points and points are only point information, and it is difficult to grasp the area-wide movement of rainfall conditions, making it impossible to easily predict how rainfall conditions will change in your territory. There was a problem.

This invention was made to solve these conventional technical problems, and it is possible to provide area-wide rainfall information in a shorter period and with a narrower mesh, and also to allow users to use their own The purpose of the present invention is to provide a rainfall information notification system that can visually and easily recognize changes in rainfall conditions in a given area.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a rainfall information reporting system that includes a rainfall radar that measures rainfall conditions within a predetermined area at regular intervals; an arithmetic processing device that processes and outputs the data, an area display means that scrolls and displays map information of a predetermined area stored in the device in advance on a display, and rainfall data from the arithmetic processing device. A small terminal comprising a rainfall data display means for displaying a map information in correspondence with a geographical position on the display by the area display means, and a scroll operation means for scrolling the display on the display. It is equipped with a device.

(Function) In the rainfall information notification system of the present invention, the rainfall situation within a preset area is measured by the rainfall radar at regular intervals, and the measurement is processed by the arithmetic processing device.

Then, in the small terminal device, the area display means displays map information of a predetermined area, which is pre-installed in the small terminal device, on the display, and at the same time, the rainfall data display means displays the rainfall amount from the arithmetic processing unit. Data is superimposed and displayed on the display of map information on a display in correspondence with geographical locations. Then, if necessary, the display on the display is scrolled by the scroll operation means.

In this way, the user can visually recognize the rainfall information of the area he or she owns by overlaying it with the map information of the corresponding area, using the display of the small terminal device that the user is carrying, and can check the movement of rainfall. It can be used for forecasting and determining whether rain countermeasures are necessary.

(Example) Hereinafter, embodiments of the present invention will be explained in detail based on the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, including a rainfall radar 1 that measures rainfall in a narrow area, and
an arithmetic processing device 2 that converts measured data into rainfall data, a distribution device 3 that distributes the rainfall data processed by this arithmetic processing device 2 to various devices, and this distribution device 3.
As a small terminal device that is connected to the computer and receives and displays rainfall data from the arithmetic processing unit 2, it can be mounted on a train or automobile, or carried around by users in railway track maintenance departments, road maintenance departments, etc. The computer is configured as a handy terminal device 4 such as a laptop computer or a palmtop computer.

In order to expand the system configuration, the distribution device 3 is further equipped with a graphic terminal device 5 for graphically displaying rainfall data, a large screen 6 for displaying rainfall data graphically on a large screen, and even on expressways. By connecting the warning display system 7 and the warning display board 8 for displaying a warning depending on the rainfall situation, the rainfall data can be widely used.

The rainfall radar 1 measures the power intensity when radio waves emitted from its own radar hit raindrops and are reflected. The arithmetic processing unit 2 uses a conversion formula generally called a radar equation for the rainfall data from the rainfall radar 1 to finally obtain rainfall data in orthogonal coordinate units of 500 m mesh. . The distribution device 3 distributes the rainfall data processed by the arithmetic processing device 2 to various devices.

Further, as shown in detail in FIG. 2, the handy terminal device 4 is configured such that an IC card 42 storing map information according to the purpose of the user can be attached to a computer main body 41, and a display 43. is IC card 4
2 map information can be displayed, and at the same time, rainfall data from the arithmetic processing unit 2 can be superimposed and displayed. This handy terminal device 4 can be connected to the distribution device 3 via a connection terminal 44.

Next, the operation of the rainfall information notification system having the above configuration will be explained.

For example, the rainfall radar 1 emits radio waves into the air every 1 to 2 minutes, and automatically measures the amount of rainfall at each point based on the power intensity when the radio waves hit raindrops and are reflected. Then, the measurement data of this rainfall radar 1 is stored in the arithmetic processing unit f2.
is input.

The processing unit 2 processes the measurement data from the rainfall radar 1 and, for example, calculates the movement of the center of gravity of the rain area, thereby recognizing patterns in the movement status of the rain area that changes from moment to moment, and detecting the movement status. Based on this, the future movement of rainfall areas is predicted. The results of this arithmetic processing are then distributed by the distribution device 3 to each connected handy terminal device 4.

In the handy terminal device 4, an IC card 42 corresponding to the purpose of use is attached to the main body 41, and a display 43 displays map information 11 intended by the user, for example, a map for railway track maintenance as shown in the display example shown in FIG. In the information section, map information of the track 12 in the track maintenance area covered by the user and its surrounding geography 13 is displayed. By scrolling this map information using normal cursor keys, the receiver can display the entire track area along the lines of the track area. Along with displaying this map information 11, rainfall information 14 sent from the arithmetic processing device 2 via the distribution device 3 can be displayed in correspondence with the position on the map, as shown in FIG. .

In the display example shown in FIG. 3, 15 indicates a rain area, 16 indicates a moving center of the rain area, and 17 indicates a 500 m mesh measured by the radar 1. This rainfall information 14 can be scrolled together with the scrolling of the map information 11.

Here, the display mode of the rain area 15 may be a shading display depending on the strength of the rain, or a color display in the case of a color display.

In this way, by connecting the handy terminal device 4 to the distribution device 3, the user can obtain rainfall information wherever he or she is, without being restricted by the location of the user's movement. It is possible to obtain the rainfall situation in a small area called a district, along with information on the movement of that rain area.

In the above embodiment, the handy terminal device 4 was shown for users in the railway track maintenance department, but in the case of a system used in such a railway track management department or road management department, it is possible to By laying a dedicated communication cable on the cable and installing connection terminals for the handy terminal device 4 at regular intervals on the laid cable, the user can carry the handy terminal device 4 and move it to any location where work is required. However, if you connect the handy terminal device 4 to the connection terminal at the nearest location,
It becomes possible to know the rainfall situation at an appropriate place where rainfall information is required.

Further, the IC card 42 can be used for a wide range of purposes by preparing various map information such as railway map information, road map information, and river map information depending on the user's purpose.

Furthermore, in the case of an in-vehicle handy terminal device, the distribution device 3
It is also possible to distribute rainfall data wirelessly along the route, and to install a wireless receiver on the side of the handy terminal device 4 so as to be able to receive the rainfall data.

[Effects of the Invention] As described above, according to the present invention, rainfall data in a narrow area is measured by a rainfall radar, and rainfall data is obtained through calculation processing by a processing unit, which is then received by a small terminal device. The map information is superimposed on the display, and the scrolling means scrolls the geographical rainfall data along with the map information, so you can visually check the rainfall situation by looking at the display on this small terminal device. It is also possible to accurately predict the movement of rainfall areas, and rainfall information can be readily and easily obtained regardless of the user's location.

Furthermore, if this small terminal device is carried by a road manager or track maintenance manager, his/her terminal device will be able to display the rainfall situation along with the map information of the area in which the terminal device is carried, allowing detailed road management or track maintenance management.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a block diagram of a handy terminal device as a multi-terminal device, and FIG. 3 is a block diagram of a display of the handy terminal device of the above embodiment. FIG. 3 is a front view showing a display example. 1... Rainfall radar 2... Arithmetic processing unit 3.
...Distribution device 4...Handy terminal device 11
...Map information 14...Rainfall situation 41...
computer body

Claims (1)

[Scope of Claims] A rainfall radar that measures rainfall conditions in a preset area at regular intervals; a processing device that processes and outputs data measured by the rainfall radar; Area display means for scrolling and displaying stored map information of a predetermined area on a display; A rainfall information notification system comprising: a small terminal device having a rainfall data display means for displaying rainfall data in correspondence with a position; and a scroll operation means for scrolling the display on the display.