JPH05134055A - Weather forcasting apparatus - Google Patents

Abstract

PURPOSE:To forcast the weather reflecting the intrinsic weather trend of a relatively narrow region and to display the forcast on a television set and the like by detecting the state of atmosphere with sensors, and forcasting the weather forcasting probability by fuzzy inference based on the detected data. CONSTITUTION:Atmospheric pressure, temperature and humidity are measured with sensors 1, 2 and 3. The data are temporarily stored in a memory 8 through a converter part 4 and a control part 14. The data are converted into the voltages of 1.0-5.0V, and the voltages are inputted into a fuzzy controller 5. In the controller 5, the weather after the specified time is operated and outputted based on the intrinsic fuzzy rule in the region is response to the goodness of fit of the preset membership function for every data. In a converting part 6, the inputted voltage values are converted into the forcast data such as precipitation probability, and the results are stored in the memory 8. The data are updated into the new data based on the signals from a clock part 7. When the image display is instructed with an input part 12, a discriminating part 9 compares the data in the memory 8 with image marks registered in a data memory 10 and discriminates the data. The result is displayed on a television main body 13 through an image forming part 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather forecasting device,
The present invention relates to what is displayed on a TV screen by predicting a change in weather by fuzzy reasoning.

[0002]

2. Description of the Related Art Meteorological information released by widely used meteorological associations is forecasted using a large computer based on the data of observation networks, meteorological satellites, etc. arranged at each point. It was information on a relatively wide area. In addition, there is a problem in that it is necessary to wait until the time of the weather forecast in order to confirm the information on a television or the like.
Therefore, there has been a demand for a device that predicts the weather in a relatively narrow area of residence, which reflects the weather tendency peculiar to the area, and can display it on a TV or the like at any time.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and detects the atmospheric condition by various sensors such as atmospheric pressure, and based on this data, the probability of precipitation, the probability of cloudy weather, the probability of clear weather, etc. The present invention provides a weather forecasting device that forecasts the weather forecasting probability of the above using fuzzy inference, and displays the corresponding screen on the television based on the forecasting result.

[0004]

In order to solve the above problems, the present invention uses a sensor for detecting atmospheric conditions such as atmospheric pressure and temperature and data based on the detection output of the sensor as inputs, and A fuzzy controller that outputs the weather forecast probability such as cloudy weather probability and clear weather probability, and performs fuzzy inference according to the fuzzy rule set beforehand based on the weather tendency peculiar to the area, and the memory that registers the graphic data corresponding to the weather forecast probability. A weather forecasting device comprising: an image generation unit that reads out corresponding graphic data from the memory based on an output of the fuzzy controller to generate an image signal; and a television main body that displays the image signal on a screen. Is.

[0005]

With the above configuration, in the weather forecasting apparatus according to the present invention, the state of the atmosphere is detected by various sensors such as atmospheric pressure, and a fuzzy rule is set in advance based on the weather tendency peculiar to this area. Based on the data detected by the sensor, we use fuzzy rules to predict weather forecast probabilities such as precipitation probability, cloudy weather probability, and clear weather probability by fuzzy inference, and read the corresponding graphic data from the registered memory according to the prediction result and display it on the TV screen. Project.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a weather forecasting device according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of essential parts of an embodiment of a weather forecasting device according to the present invention. In the figure, 1 is an atmospheric pressure sensor, 2 is an air temperature sensor, and 3 is a humidity sensor, which respectively measure atmospheric pressure, air temperature, and humidity. Reference numeral 4 denotes a conversion unit which performs predetermined processing on the output of the sensor, converts it into a voltage of 1.0 to 5.0 V, and outputs the voltage to the fuzzy controller 5. The fuzzy controller 5 includes a conversion unit 4
Each of these signals is used as an input, and fuzzy inference is performed based on fuzzy rules stored in advance in a built-in memory, and signals corresponding to weather forecast probabilities such as precipitation probability, cloudy weather probability, and clear weather probability are output. Fuzzy rules are set on the basis of the forecasted region-specific weather tendency and are stored in the built-in memory. A conversion unit 6 converts the signals output from the fuzzy controller 5 into weather forecast probability data such as precipitation probability, cloudy weather probability, and clear weather probability. 7
Is a clock unit that outputs time data. 8 is a memory,
The atmospheric pressure, temperature, and humidity data measured by the atmospheric pressure sensor 1 and the conversion unit 6 temporarily store the output data of the weather prediction probability. A discriminating unit 9 discriminates by comparing the data from the converting unit 6 with the data stored in the data memory 10. Data memory
In FIG. 10, graphic data corresponding to the weather prediction probability is registered in advance together with the weather probability data. Reference numeral 11 is an image generation unit, which is composed of a synchronization signal generation unit, a character generation unit, a video memory, a display control unit, etc. And outputs it to the TV body 13. The TV body 13
It is composed of a tuner, a signal processing unit, a CRT, etc., and displays a weather forecast image by an image signal from the image generation unit 11.
A control unit 14 is composed of a CPU, a program ROM, etc., and controls each of the above units.

Next, the operation of the weather forecasting device according to the present invention will be described. First, the atmospheric pressure, temperature, and humidity sensors measure atmospheric pressure, air temperature, and humidity, respectively, and output data. This data is temporarily stored in the memory 8 via the conversion unit 4 and the control unit 14, converted into a voltage of 1.0 to 5.0 V by the conversion unit 4, and input to the fuzzy controller 5.
The fuzzy controller 5 determines, according to the conformity of the membership function set for each data of these input signals,
Based on a fuzzy rule stored in a built-in memory, a signal corresponding to a probability of precipitation, a probability of cloudy weather, a probability of clear weather, etc. predicted after a predetermined time, for example, 6 hours, is calculated and output by fuzzy inference. The fuzzy rule uses voltage values corresponding to atmospheric pressure, temperature, and humidity as the antecedent part, and voltage values corresponding to precipitation probability, cloudy weather probability, and clear weather probability as the consequent part. Depending on the area, it is defined based on the weather tendency peculiar to the area. Converter 6
Is the probability of precipitation based on the input voltage values,
It is converted into data of cloudy weather probability and clear weather probability and is temporarily stored in the memory 8 through the control unit 14 together with the data of the atmospheric pressure, temperature, humidity and the like. These data are measured and calculated, for example, every one hour based on the signal from the clock unit 7 and updated to new data.

Now, when operating the input unit 12 to instruct the weather forecast screen display, the weather forecast probability data temporarily stored in the memory 8 is compared and discriminated by the discrimination unit 9 with the data registered in the data memory 10. The graphic data is read and the image generation unit 11
Sent to. The data memory 10 stores graphic data including image marks (pattern data) of rain umbrellas, clouds, the sun, etc., and predetermined character data, etc. together with the probability data corresponding to predetermined ranges of weather probabilities such as precipitation probability. Register in advance. The image generation unit 11 generates an image signal based on this graphic data, and the weather forecast image is displayed on the television body 13. FIG. 2 shows an example of a screen displayed on the television.
The display on the television main body 13 may be either full-screen display or picture-in-picture display, and either one may be selected.

In this embodiment, the atmospheric pressure, temperature, and humidity data are input to predict the change in weather after a predetermined time. However, the wind direction, wind speed, etc. are also input as input, and one year According to the tendency, for example, four seasons of spring, summer, autumn, and winter are divided, and optimum fuzzy rules are set for each and switched to be used, whereby more accurate prediction of weather change can be expected. Further, it is possible to additionally display, as an output, prediction items such as temperature, wind direction, and wind speed.

[0010]

As described above, in the weather forecasting apparatus according to the present invention, the state of the atmosphere is detected by various sensors such as atmospheric pressure, and a fuzzy rule is set in advance based on the weather tendency peculiar to this area. , Predicting weather forecast probability such as precipitation probability, cloudy weather probability, clear weather probability, etc. by fuzzy inference based on the data detected by the sensor, and reading the corresponding graphic data from the registered memory according to the prediction result.
I made it appear on the TV screen. Therefore, it becomes possible to predict the weather based on the weather tendency peculiar to the area in which the residence is located, and it is possible to more accurately predict the change in the weather when used together with the meteorological information of the meteorological association. Also, since it is miniaturized using a fuzzy controller and built into the TV, it can be displayed on the TV screen by simple operation whenever necessary.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of an embodiment of a weather prediction device according to the present invention.

FIG. 2 is an example of a screen displayed on the television of the weather prediction device according to the present invention.

[Explanation of symbols]

 1 barometric pressure sensor 2 temperature sensor 3 humidity sensor 4 conversion unit 5 fuzzy controller 6 conversion unit 7 clock unit 8 memory 9 discrimination unit 10 data memory 11 image generation unit 12 operation unit 13 TV unit 14 control unit

Claims (1)

[Claims] 1. A sensor for detecting atmospheric conditions such as atmospheric pressure and temperature, and data based on the detection output of the sensor are input respectively, and weather prediction probabilities such as precipitation probability, cloudy weather probability and clear weather probability are output, and A fuzzy controller that performs fuzzy inference based on a fuzzy rule set based on a weather tendency unique to a region, a memory that registers graphic data corresponding to the weather prediction probability, and the corresponding graphic data based on the output of the fuzzy controller. A weather prediction device comprising an image generation unit which reads out from a memory and generates an image signal, and a television main body which displays the image signal on a screen.