JP2002257945A - Data management method in meteorological information system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce system resources and simplify operations done by operators in a meteorological information system comprising a plurality of terminal devices. SOLUTION: A server creates and manages common image data during processes up to the display of a meteorological chart.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating and displaying a weather map in a weather information system and a method for obtaining weather data serving as a basis for the weather map.

[0002]

2. Description of the Related Art Conventionally, in a weather information system, all drawing parameters are set in a terminal device that receives weather data distributed from a host device, and a weather map is independently created and displayed.

If the weather map displayed is not the latest due to a line failure with the host device, the operator manually obtains the weather data on which the weather chart is based from the host device and displays the weather chart again. Was.

The prior art relating to the display of weather data is:
For example, JP-A-7-120564, JP-A-10-171
No. 734, JP-A-2000-222276 and the like.

[0005]

In the prior art, even if a site has a meteorological map commonly displayed in a system composed of a plurality of terminal devices, a meteorological map is created from the meteorological data received by each terminal device. Since the display is performed, the drawing parameters of the same weather map must be set in each terminal device, and this operation requires a lot of time. Furthermore, by having the same file multiple times,
System resources were also wasted.

If the required weather data has not been received, the intended weather map is not displayed. Therefore, each time the identification code of the weather data which is the basis of the weather map to be displayed is checked, it is obtained manually. There is a problem that it cannot be displayed unless it is done.

An object of the present invention is to provide a weather information management method for reducing a system resource and simplifying an operation of an operator in a weather information system including a plurality of terminal devices.

[0008]

In order to achieve the above object, the present invention proposes the following weather data management method. The weather information system to which the present invention is applied includes a server that receives weather data from a host device and a plurality of terminal devices connected to the server. The display of the weather chart is performed by each terminal device. There are two types of weather maps, such as those commonly used in Japan, and individual weather maps required for each terminal device. The weather map is created based on the weather data and the drawing parameters of each weather map, and the drawing parameters of the weather map that are common in the site are registered in the server device, and the terminal device draws the drawing parameters of the terminal-specific weather map. Register only. The drawing parameters include a code for identifying weather data serving as a basis of the weather map, in addition to a region and a display element of the weather map.

When the server device receives the weather data from the host device, the server device accumulates the data in the weather database of the server and simultaneously distributes the weather data to each terminal device. The server device creates each weather map according to the registered drawing parameters, accumulates the data as image data in the image database of the server, and simultaneously distributes the image data to each terminal device. At this time, the image data is stored and distributed in association with the identification code indicating each data. The server device creates an environment file in which the name of the weather map, the identification code of the weather data, and the image data, if any, are associated with the identification code of the image and the identification code of the drawing condition parameter, and distributes the environment file to each terminal device. . Each terminal device stores the weather data, image data, and environment file, respectively, as in the server.

When a request for displaying a weather map is made at the terminal device, whether the weather map is a common map or a unique map is checked against a list of weather maps prepared in advance. If it is a common weather map in the site, it reads image data distributed from the server device and displays it.If it is a terminal-specific weather map, it reads weather data distributed from the host device and, according to the drawing parameters, A new figure is created and displayed.

If the latest information on the target weather map is not displayed on the terminal device due to the lack of data reception, the operator requests an update of the weather map by an operation such as pressing a button on the display screen. Upon receiving this update request, the server refers to the drawing parameters of the corresponding weather map by referring to the environment file, and requests the server device to acquire the corresponding data using the registered identification code as a key.

If the identification code of the update request indicates the weather data, the server searches the stored weather data and distributes it to the requesting terminal device. If the latest weather data does not exist, a request for acquiring the corresponding weather data is made to the higher-level device. If the identification code of the update request indicates image data, search the stored image data,
Deliver to the requested terminal device. If the latest image data does not exist, the CPU refers to the drawing parameter and requests the host device to acquire the corresponding weather data using the registered identification code as a key. The process after receiving the requested weather data is performed in the same manner as when receiving normal weather data.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a configuration of a weather information system to which the present invention is applied.

In FIG. 1, 10 is a server device, 20 is a terminal device, 40 is a communication line connecting the host device and the server device 10, and 50 is a communication line connecting the server device 10 and the terminal device 20. Although only a few terminal devices are shown in the embodiment of the present invention, actually more terminal devices are connected to the server device 10.

The processing process of the server device 10 comprises a creation / distribution process 11 and an update process 12. It has a drawing parameter table 13 which is an environment file referred to in the claims as data. FIG. 6 shows the logical structure of the drawing parameter table. This table includes a weather map name field 601, a weather data identification code field 60
2, an image identification code field 603 and a drawing condition field 604. Meteorological map name field 601
Defines a unique name of a weather map created by the server device 10 or the terminal device 20. In the weather data identification code field 602, an identification code of weather data serving as a basis for a weather map is defined. Image identification code field 60
3 defines a unique code for identifying the data when the weather map created in the server device 10 is converted into image data. In the terminal device, the image identification code field 603 is blank like the field 605. The drawing condition field 604 defines a map projection, area, scale, display elements, and the like for creating a weather map. In the server device 10, a drawing parameter table 13 for a common weather map displayed by each terminal device is registered.
Further, the server device 10 accumulates, as image data, a meteorological DB 14 that accumulates meteorological data distributed from the host device through the communication line 40 to create a meteorological map, and a meteorological map created from the meteorological DB 14 and the drawing parameter table 13. It has an image DB 15. The image DB 15 stores a weather map name for identifying created image data, an image identification code, and image data in association with each other.

The processing process of the terminal device 20 comprises a storage / display process 21 and an update process 22. Further, as data, a drawing parameter table 23 unique to each terminal device and a weather DB storing weather data distributed through the communication line 50 via the server device 10.
24 and an image DB 25 storing image data created by the server device 10 and its identification code. The drawing parameter table 23 is created by adding weather map information unique to the terminal to the common drawing parameter table 13 distributed from the server device 10. The table structure is the same as the drawing parameter table 13.

Next, the weather map creation / distribution process 11 in the server device 10 will be described with reference to the flowchart of FIG. First, drawing parameters of a common weather map in the site are registered in a table as preprocessing (step 20).
0). When the weather data is input, the control is transferred to the storage processing 210. In the storage process 210, the received weather data is relayed to the terminal device 20, stored in the weather DB 14 (steps 211, 212, 213), and control is passed to the output process 220. In the output process 220, weather data is read from the weather DB 14 (step 221). The drawing parameter table 13 is searched using the identification code of the read weather data as a key, and if there is a corresponding weather map, drawing conditions are acquired (steps 222 and 223). A weather map is created according to the acquired drawing conditions (step 224). The created weather map is converted into image data (step 225). The image data, weather map name, image data identification code, and data time are stored in the image DB 15 and distributed to the terminal device (steps 226, 227).

Next, the storage of the weather map in the terminal device 20
The display process 21 will be described with reference to the flowchart of FIG. First, as a pre-process, the drawing parameters of the weather map specific to the terminal device are registered in a table (step 301).
Next, the weather map names are read from the drawing parameter table 23 and the image DB 25 to create a weather map list (step 3).
02, 303, 304). When data is received, storage process 3
Control passes to 10. In the storage process 310, it is determined whether the received data is weather data or image data (steps 311 and 312). If the received data is weather data, it is stored in the weather DB 24 (step 313). It is stored in the DB 25 (step 314). After storing the image DB, the weather map list is re-created (step 3).
12, 313). This is because a new weather map needs to be added to the list when it is distributed. When a weather map display is requested, control is transferred to the display processing 320. In the display process 320, the weather map selected from the weather map list is determined (step 32).
1,322), in the case of a common weather map, image data is read from the image DB 25 and the weather map is displayed (step 32).
3,327). In the case of the terminal-specific weather map, drawing conditions are read from the drawing parameters 23 and weather data from the weather DB 24, and a weather map is created and displayed (step 32).
4,325,326,327).

Next, the weather map updating process 22 in the terminal device 20 will be described with reference to the flowchart of FIG.
Storage / display process 21 of weather map in terminal device 20
When the display (with the latest data) is updated for the meteorological map displayed in (1), the type of the displayed meteorological map is determined from a list of meteorological maps (step 401). If the target weather map is a common weather map, the image DB 25 is read to obtain an image identification code (steps 402 and 40).
4). In the case of the terminal-specific weather map, the drawing parameter table 23 is read to acquire the identification code of the weather data (steps 403 and 405). An acquisition request message is created based on the acquired code and transmitted to the server device 10 (step 406). According to this processing, the corresponding data is distributed from the server device 10, and the storage / display process 21 of the weather map performs
The latest weather map is displayed.

Next, the weather map update process 12 in the server device 10 will be described with reference to the flowchart of FIG. Upon receiving the acquisition request message sent from the update process 22 in the terminal device 20, the identification code defined in the message is acquired (steps 501 and 50).
2). If the identification code represents image data (image identification code), the image DB 15 is searched, and if there is the latest image data, it is delivered to the terminal device 20 (step 50).
3,504). If there is no latest image data, the identification code of the corresponding weather map is acquired from the drawing parameter table 13, an acquisition request message is created based on the acquired code, and transmitted to the host device (steps 505, 506, 50).
7). If the identification code indicates the weather data and there is no latest data in the weather DB 14, the acquisition request message is relayed to the host device as it is (step 507). According to this processing, the corresponding weather data is distributed from the host device, and the latest weather data or image data is distributed to the terminal device 20 by the creation / distribution process 11.

[0021]

As described above, according to the present invention, in the process up to displaying the weather map, the resources used can be reduced by creating and managing the common image data in the server, and the operator can be used. Can be simplified.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a weather information system to which the present invention is applied.

FIG. 2 is a flowchart showing processing of a weather map creation / distribution process in the server device.

FIG. 3 is a flowchart showing processing of a weather map storage / display process in the terminal device.

FIG. 4 is a flowchart showing processing of a weather map update process in the terminal device.

FIG. 5 is a flowchart showing processing of a weather map update process in the server device.

FIG. 6 is a logical configuration diagram of a drawing parameter table.

[Explanation of symbols]

10 server device, 20 terminal device, 40, 50 communication line, 11 creation / distribution process, 12 (server device) update process, 13, 23 drawing parameter table, 14, 24 weather DB, 15, 25 ... Image DB, 2
1. Storage / display process, 22 (terminal device) update process.

Continued on the front page (72) Inventor Masamitsu Nagao 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa F-term in Hitachi Advanced Systems Co., Ltd. 5B050 AA01 BA10 BA17 CA05 CA08 EA19 FA02 5B069 AA01 BA03 DD15 KA01 LA03

Claims (2)

[The claims] In a weather information system comprising a server for processing and displaying weather data received from a host device and a plurality of terminal devices, drawing parameters of a common weather map in a site are registered in the server device, and terminal-specific weather data is registered. The drawing parameters of the diagram are registered in the terminal device, the server device creates a weather map according to the drawing parameters based on the weather data received from the higher-level device, stores it as image data, and distributes the weather data and the image data to each terminal device. The terminal device accumulates the meteorological data and the image data, and displays the accumulated image data for the common meteorological map at the time of the display request of the meteorological map, and draws the other registered in the terminal device based on the meteorological data. A data management method for a weather information system, wherein a weather map is created and displayed according to parameters. 2. The data management method for a weather information system according to claim 1, wherein the name of the weather map, the identification code of the weather data, and the image identification code when the image data exists in the server device are associated with each other. Creating a file and distributing it to each terminal device, referring to the environment file at the time of a weather map update request in the terminal device, and requesting a server for data items necessary for updating; Management method.