JPH0627870B2 - Geostationary meteorological satellite image reception processing device - Google Patents

Description

The present invention relates to a geostationary meteorological satellite image reception processing device, and in particular, receives geographic image data transmitted from a geostationary meteorological satellite "Himawari", and maps to this image data. The present invention relates to a geostationary meteorological satellite image reception processing device that displays an image including gridding mapping (hereinafter referred to as G / M) information for inserting a graticule in real time.

[Conventional technology]

Conventionally, in this type of geostationary meteorological satellite image reception processing device, when inserting a graticule / coastline into a received image, the G / M process is performed again after all data for one image is received. This G / M processing was performed using the coordinate exchange information at the time of the previous reception.

[Problems to be Solved by the Invention]

At the time of reception, the conventional geostationary meteorological satellite image reception processing device described above only displays the image data as observed without the insertion of the graticule, coastline, etc., which region is displayed in real time, so-called There is a drawback in that it is not possible to easily recognize whether the quick look is displayed. Further, when the G / M processing is performed after receiving the data of one image, there is a drawback that it is not immediacy. Further, the method of using the coordinate conversion information at the time of the previous reception has a drawback that in the case of a geostationary meteorological satellite, the processing time becomes long to eliminate the error, and the processing becomes complicated and expensive.

[Means for Solving the Problems]

A geostationary meteorological satellite image reception processing device of the present invention receives data including earth image data and earth observation start time from a geostationary meteorological satellite and inserts a map and a graticule that are updated at predetermined time intervals. An image processing unit is provided which outputs the processed map data and the earth image data to the display unit in synchronization with the time counted based on the earth observation start time.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In the embodiment shown in FIG. 1, for example, a receiving unit 2 that receives a straddled VISSR signal through an antenna 1, an image processing unit 3 that performs G / M processing on the output of the receiving unit 2 in real time, and an output of the image processing unit 3. And a display unit 9 for displaying. The image processing unit 3 also stores an image data memory 4 for storing image data output from the receiving unit 2, a coordinate conversion information memory 5 output from the receiving unit 2, and a G / M parameter based on the coordinate conversion information. G / M table 6 to create and store, G / M
A map data memory 7 that stores map data that has been gridded and mapped according to the parameters of the M table 6 and a time detection unit 8 that detects time data from the output of the reception unit 2 and detects the earth observation start time are provided. . The map data memory 7 has a capacity for storing a plurality of map data.

Next, the operation of this embodiment will be described. The motion of the geostationary meteorological satellite on the earth is generally known as the "8" -shaped motion of the geostationary satellite caused by the inclination angle of the orbital plane, the attractive force of the sun, the attractive force of the circle, and the like. The cycle of this "8" movement is 2
One feature is that it makes one lap in four hours (one day), and at the same time, the points of the graticule and coastline of the earth become the same point every day. On the other hand, the Stretched V transmitted from the geostationary meteorological satellite
The ISSR (terrestrial image data) signal is captured by the antenna 1, received and demodulated by the receiving unit 2, and then the image processing unit 3
Image data is stored in the image data memory 4 and displayed on the display unit 9. The quick look display is to display this at the same time as reception by performing this operation for each line. The coordinate exchange information sent together with the image data is stored in the coordinate conversion information memory 5. Further, the time data sent together with the image data is input to the time detection unit 8 to detect the earth observation start time. In the G / M table 6, one day of map data is created at predetermined time intervals by the parameters created from the coordinate exchange information and stored in the map data memory 7. If the time interval is, for example, every hour, 24 types of map data are stored in the map data memory 7. The time detection unit 8 detects the earth observation start time, and selects the map data corresponding to the time counted accurately, for example, every hour from the map data memory 7 starting from this time, and at the same time, the image synchronized with the time is selected. The image data stored in the data memory 4 is superimposed and displayed on the display unit 9. In this way, in addition to the image data received on the display unit 9, an image including a graticule, a coastline, etc. can be displayed in real time.

〔The invention's effect〕

As described above, the present invention provides image gridding
In the mapping process, by selecting the map data at the time currently received from the map data stored for one day in advance and overlaying it on the image data, almost simultaneously with the reception, the image subjected to the gridting mapping process is performed in real time. Can be displayed. Therefore, there is an effect that the immediacy of the display can be achieved.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention. 1 ... Antenna, 2 ... Receiving section, 3 ... Image processing section, 4
…… Image data memory, 5 …… Coordinate conversion information memory, 6
…… G / M table, 7 …… Map data memory, 8 ……
Time detection unit, 9 ... Display unit.

Claims (1)

[Claims] 1. Map data obtained by receiving data including earth image data and earth observation start time from a geostationary meteorological satellite, and performing gridting mapping processing in which maps and graticules that are updated at predetermined time intervals are inserted. A geostationary meteorological satellite image reception processing apparatus comprising: an image processing unit that outputs the earth image data to a display unit in synchronization with a time counted based on the earth observation start time.