JPH02141692A - Apparatus for receiving and processing image from geostationary meteorological satellite - Google Patents

Abstract

PURPOSE:To display an image which undergoes gritting mapping instantly at the same time of reception by selecting a time map which is received at present out of map data for one day which are stored beforehand, and superimposing the data on the image data. CONSTITUTION:The image data signal of the earth which is transmitted from a geostationary meteorological satellite is captured through an antenna 1 and received and demodulated in a receiving part 2. Thereafter, the signal is stored in an image data memory 4 in an image processing part 3. Coordinate transformation data which are sent together with the image data are stored in a coordinate transformation data memory 5. Time data are inputted into a time detecting part 8, and the starting time of the earth observation is detected. In a gritting mapping table 6, map data for one day are formed at a specified time interval based on the parameters formed from the coordinate transformation data. The data are stored in a map data memory 7. The detecting part 8 detects the starting time of the earth observation ad selects the map data corresponding to the time counted from said detected time which is a starting point accurately out of a memory 7. The data stored in the memory 4 which are synchronized with said time are superimposed and displayed on a display part 9.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a geostationary meteorological satellite image reception and processing device, and in particular, receives earth image data transmitted from a geostationary meteorological satellite ~Himawari'', and adds maps, maps, etc. to this image data. The present invention relates to a geostationary meteorological satellite image reception and processing device that displays images containing gridding mapping (hereinafter referred to as G/M) information for inserting graticules and graticules in real time.

[Conventional technology]

Conventionally, this type of geostationary meteorological satellite image reception and processing apparatus performs 07M processing again after receiving all the data for one image when inserting graticules and coastlines into a received received image. This 07M process was performed using the coordinate transformation information received last time.

[Problem to be solved by the invention]

The above-mentioned conventional geostationary meteorological satellite image reception and processing device only displays image data as observed without inserting graticules, coastlines, etc. at the time of reception. Quick Look has the disadvantage that it is not easy to recognize whether it is displayed. Furthermore, when performing 07M processing after receiving one image's worth of data, there is a drawback that there is no immediacy. Furthermore, the method of using coordinate transformation information from the previous reception has the disadvantage that in the case of a geostationary meteorological satellite, processing time is long to eliminate errors, and the processing becomes complicated and expensive equipment is required.

[Means to solve the problem]

The geostationary meteorological satellite image reception and processing device of the present invention receives data including earth image data and earth observation start time from a geostationary meteorological satellite, and performs grid mapping in which maps and graticules that are updated at predetermined time intervals are inserted. The apparatus includes an image processing section that outputs the processed map data and the earth image data to a display section in synchronization with a time counted based on the earth observation start time.

〔Example〕

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

FIG. 1 is a block diagram showing one embodiment of the present invention. The embodiment shown in FIG. 1 includes a receiving section 2 that receives, for example, a stretched VISSR signal via an antenna 1, an image processing section 3 that performs G/M processing on the output of the receiving section 2 in real time, and an output of the image processing section 3. It is composed of a display section 9 that displays . The image processing section 3 also stores an image data memory 4 for storing image data output from the receiving section 2, a coordinate transformation information memory 5 for outputting the receiving section 2, and generates G/M parameters based on the coordinate transformation information. Create and store 07M table 6 and 07M
Map data memory 7 that stores map data subjected to gridding and mapping according to the parameters in 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. Note that the map data memory 7 has a capacity to store a plurality of map data.

Next, the operation of this embodiment will be explained. Generally, the motion of a geostationary meteorological satellite with respect to the earth is known as the figure-of-eight motion of a geostationary satellite caused by the inclination of the orbital plane, the gravitational force of the sun, the gravitational force of a circle, and the like. The period of this “8” movement is 24
It makes one revolution in an hour (one day), and is characterized by the fact that at the same time the Earth's graticules and coastlines are at the same point every day.

On the other hand, stretched VIS transmitted from geostationary meteorological satellites
An SR (earth image data) signal is captured by an antenna 1, received and demodulated by a receiver 2, stored in an image data memory 4 in an image processor 3, and displayed on a display 9. Quick look display means to display data simultaneously with reception by performing the second operation for each line.

The coordinate transformation information sent together with the image data is stored in the coordinate transformation information memory 5. Further, the time data sent together with the image data is input to the time detection section 8, and the earth observation start time is detected. 07M table 6 is a map data memory 7 in which one day's worth of map data is created at predetermined time intervals using parameters created from coordinate conversion information.
is stored in 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, selects from the map data memory 7 map data corresponding to a time that is accurately counted, for example, every hour starting from this time, and also displays an image synchronized with that time. data memory 4
The image data stored in the image data are 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 graticules, coastlines, etc. can be displayed in real time.

〔Effect of the invention〕

As explained above, the present invention provides image gridding and
During the mapping process, by selecting the currently received map data from the map data stored for one day and superimposing it on the image data, the grid mapping processed image is generated in real time almost simultaneously with the reception. can be displayed. Therefore, there is an effect that the display can be displayed immediately.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Antenna, 2... Receiving section, 3... Image processing section, 4... Image data memory, 5... Coordinate transformation information memory, 6... G/M table, 7... - Map data memory, 8... time detection section, 9... display section. 9 Buried Pu 11 Rijo No. 11 j Kyo Susumu

Claims (1)

[Claims] Data including earth image data and earth observation start time is received from a geostationary meteorological satellite, and the earth image data is combined with map data that has been subjected to grid mapping processing in which maps and graticules that are updated at predetermined time intervals are inserted. A geostationary meteorological satellite image reception and processing device, comprising: an image processing unit that outputs to a display unit in synchronization with a time counted based on the earth observation start time.