JPH0829545A - Weather forecast display system - Google Patents

Abstract

PURPOSE:To transmits a weather forecast required for making a decision in the farming or work at an appropriate timing to the farmer over a wide range. CONSTITUTION:Current weather information obtained through a weather observation sensor group 1 is converted through a data logger 2 into an electric signal which is then stored temporarily. A communication modem in the data logger 2 is connected through a communication unit 3 (RS-232C) with a CPU 4 in order to communicate therewith at an arbitrary interval and weather information is transmitted to the CPU 4 while being sorted by a command delivered therefrom. Weather information received by the CPU 4 is stored in an external memory 5. The external memory 5 is previously registered with a past weather data and the weather information from the data logger 2 is compared with the past weather information extracted from the memory according to a computer program built in the CPU 4 thus making a decision and creating a weather forecast which is then presented on an electric display 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather forecast posting system used by an agricultural worker in advance to obtain a weather forecast necessary for crop cultivation management.

[0002]

2. Description of the Related Art Conventionally, the main source of information for farmers to obtain weather forecasts has been weather forecasts distributed by the Japan Meteorological Agency through broadcasting media, but in recent years, in some areas, such as AMeDAS data from the Meteorological Agency. There has been a tendency to purchase various kinds of meteorological data or locally install a dedicated meteorological observation facility to actively collect meteorological data and make a weather forecast.

[0003]

However, it is very difficult to predict the occurrence of meteorological obstacles and pests from the meteorological data obtained by the above-mentioned method, and make a decision on farming and work, which is very difficult to use. In order to do so, it requires a special study by the farmers themselves, so there is a problem that it takes a lot of time and effort for the farmers at the end to utilize the weather data collected at all. In view of the problems as described above, the present invention provides a weather forecast posting system capable of transmitting weather forecasts necessary for decision making in farming and work to a wide range of farmers in an appropriate timely manner. That is the purpose.

[0004]

Therefore, according to the present invention, at least one meteorological observation sensor and the present meteorological information obtained from the meteorological observation sensor are converted into electric signals and temporarily stored in the meteorological forecast posting system. A data logger that
Transmitting means for communicating with a communication modem in the data logger at arbitrary intervals and transmitting separated weather information to the CPU, an external storage device connected to the CPU for storing past weather information, and in the CPU Determination means for making a determination on a weather forecast by comparing and examining the current weather information incorporated and past weather information extracted from the storage device; and an interface for converting the determination information determined in the CPU into character information, A first feature is that the weather observation sensor is a dew meter, and the weather observation sensor is a thermometer and a sunshine duration meter. The third feature is that the CPU, a rain gauge, and an anemometer are provided.
A fourth feature is that the voice generating device is provided in and the voice generating device is connected to a telephone line. In addition to these features, the fifth feature is that the electronic display device is installed in the field. To do.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view showing an embodiment of a weather forecast posting system according to the present invention, and FIG. 2 is a block diagram showing an electrical configuration of this embodiment.

This embodiment is a system for predicting the occurrence of rice leaf blast disease and displaying it, and is installed near a paddy field. In FIG. 1, 1 is a weather observation sensor group,
In this embodiment, it is composed of various weather sensors such as a thermometer 1A, a hygrometer 1B, a rainfall meter 1C, an anemometer 1D, a sunshine meter 1E, a pyranometer 1F, and a rain gauge 1G.

Rice leaf blast disease occurs under the following conditions. (A) The time when the rice leaves were wet (leaf surface wetting time) was 10
Be more than time. (B) The average temperature of the past 5 days from the present is 20 ° C to 25 ° C
To be. (C) The average temperature during the leaf wetting time is 15 ° C to 25 ° C. If all the above three conditions are met, it can be determined that the suitable conditions for the onset of blast disease have been met.

As a meteorological sensor for judging these meteorological conditions, at least a dew meter may be used. However, due to the difficulty of maintenance and management of the dew meter, a thermometer, a sunshine hour meter, a rainfall meter, and an anemometer are used. Can be replaced by four sensors.

FIG. 2 is a block diagram showing the electrical configuration of this system. The current weather information obtained from the weather observation sensor group 1 is converted into an electric signal by the data logger 2 and temporarily stored. The communication modem in the data logger 2 is connected to the CPU 4 via the communication device 3 (RS-232C) and communicates with the CPU 4 at an arbitrary interval.
The weather information sorted according to the command of the CPU 4 is transmitted to the CPU 4. Then, the weather information received by the CPU 4 is stored in the external storage device 5.

Here, past meteorological data (for the past 30 years in this embodiment) is registered in advance in the external storage device 5, and the meteorological information from the data logger 2 is stored by a computer program incorporated in the CPU 4. And the past weather information extracted from the external storage device 5 are compared and measured to determine the weather information. To be more specific, this judgment is based on the meteorological data in which the blast disease has occurred in the past 30 years, the past week (7 days ago), the season (10 days ago),
The weather data collected by the weather observation sensor group 1 is compared every January (30 days before). That is, the wetness time of rice leaves is determined from the weather observation sensor group 1, and the above-mentioned (a), which is a preferable condition for the development of blast disease,
A judgment is made by collating with each condition of (b) and (c), and the judgment result is processed into the following message. (D) There are no conditions for the occurrence of rice blast disease in rice.
(Normal) (e) There are semi-preferred conditions for the occurrence of rice leaf blast disease. (Caution) (f) There are suitable conditions for the occurrence of rice leaf blast disease.
(Warning) The determination information created inside the CPU 4 is the communication device 3
It is transmitted to the interface 6 via (RS-232C), converted into character information, and displayed on the electronic display device 7.

The CPU 4 also sends a red light (warning) 1 via the parallel port 8 and the relay controller 9.
0A and yellow light (caution) 10B are connected,
The CPU 4 is activated by a warning or caution signal transmitted from the CPU 4 in accordance with the message content related to the determination information.

These electronic display device 7 and red light emitting lamp 10
The A and the yellow light-emitting lamps 10B are not only installed near the field (field), but also installed at a collection site or a public hall so that many farmers can utilize the weather forecast.

Further, a voice generating device 11 is provided in connection with the CPU 4 and connected to a telephone line 12 so that the above message can be heard by telephone. In the figure,
Reference numeral 14 denotes an uninterruptible power supply, which is adapted to cope with a momentary interruption of the commercial power supply 15.

Next, frost occurrence prediction using this system will be described. This transmits the weather information obtained by this system to a host computer of a management center such as an agricultural cooperative via a telephone line 12 and a modem 13, and a CPU
By analyzing the judgment inertia information created in 4 including the judgment of the operator (human), more accurate prediction is performed.

Frost occurs when the following meteorological conditions are met. (B) The pressure distribution is west high east low. (B) Humidity. (C) The temperature is below 4 ° C. (D) Be calm. Of these meteorological data, (b) and (c) are obtained from the meteorological observation sensor group 1 of this system. Also,
The meteorological data of (a) and (d) will be obtained from the cloud image information of the meteorological satellite Himawari, the weather map (upper and ground) information announced by the Meteorological Agency, and the AMeDAS information announced by the Meteorological Agency. However, the meteorological data obtained from other than this system is very macroscopic, and there is a point that it is partially inconsistent with the local observation data.

Therefore, it was decided to analyze and process these macroscopic weather data by an interactive computer program between a host computer and an operator.

An example of analysis processing will be shown below. Since it is predicted that frost will occur when the morning feature surface temperature becomes 0 ° C. or less, the minimum temperature of the next morning is predicted. This is calculated by the following formula: minimum temperature of the next morning = (temperature 30 minutes before sunset on the evening of the previous day)-
(Night-time cooling amount) Night-time cooling amount = (maximum possible cooling amount) x a x b x c x d +
(Feature correction temperature) × a Here, the maximum possible cooling amount is autumn = 24 ° C. winter = 28.5 ° C. spring = 28 ° C. Similarly, a, b, c and d are the coefficients shown below. a = Coefficient due to clouds Clear weather = 1 Light cloud = 0.7 Thick cloud = 0.3 b = Coefficient due to wind in the sky Wind speed above 5 m / sec Weak wind = 1 Wind speed above sky is less than 10 m / sec Wind = 0.7 Weak wind with wind speed above 20m / sec = 0.3 c = Topographic coefficient Plain = 1 Deep basin = 1.3 d = Soil moisture coefficient Wet soil = 0.3-0.5 Dry soil = 0.6 to 0.7 Dry sand = 0.9 The feature correction temperature is as follows. Soil surface = 0 ° C. Here, when targeting a feature (foliage surface of a crop) above the ground (when the height of the feature is less than 1 m), the wind speed is 0 ° C. when the wind speed is 1 m / sec. 5 m / sec at 1 ° C Wind speed less than 0.5 m / sec at 3 ° C (if the height of the feature is less than 2 m) Wind speed at 1 m / sec at 3 ° C Wind speed at 0.5 m / sec at 4 ° C Wind speed at 0 ° C It becomes 6 ° C at less than 5 m / sec.

Next, an example of calculation by the above formula will be shown. Weather conditions are clear autumn (dry day): a = 1 Wind in the sky is weak wind: b = 1 Plains: c = 1 Dry land: d = -0.6 Features with height less than 1m: 1 ° C If the temperature in the evening of the previous day (30 minutes before sunset) is 12 ° C., the nighttime cooling amount = 24 ° C. × 0.6 + 1 ° C. = 15.4 ° C. The minimum temperature in the next morning = 12 ° C.-15.4 ° C. = − 3. It becomes 4 ° C. In this example, the minimum temperature of the ground on the next morning is below freezing, so it can be predicted that frost will occur.

The prediction information thus obtained is the telephone line 1
2 is transmitted to the CPU 4 through the display 2, and is displayed on the electronic display device 7, and the red light 10A or the yellow light 10 is emitted.
Operate B and give "warning" and "warning" to the farmers.

As described above, the weather forecast obtained by the present system can support agricultural decision making such as "determination of timing of topdressing", "prediction of ripening period", "deep water management". In addition, the electronic display device 7 in normal operation of this system,
In addition to displaying the current state of weather such as temperature and accumulated precipitation, it can also be used as an advertising medium for displaying contact items such as local events.

[0021]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, there is an excellent effect that the weather forecast necessary for decision making of farming and work can be transmitted to a wide range of farmers in an appropriate timely manner. is there.

[0022]

[Brief description of drawings]

FIG. 1 is an external view showing an embodiment of a weather forecast posting system according to the present invention.

FIG. 2 is a block diagram showing an electrical configuration of this embodiment.

[Explanation of symbols]

 1 Meteorological Observation Sensor Group 2 Data Logger 3 Communication Device (RS-232C) 4 CPU 5 External Storage Device 6 Interface 7 Lightning Display Device 8 Parallel Port 9 Relay Controller 10A Red Light Emission Light 10B Yellow Light Emission Light 11 Voice Generation Device 12 Telephone Line 13 Modem 14 Power supply 15 Commercial power

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shuzo Hamaya 2-44, Minamihara-cho, Yamagata City, Yamagata Prefecture (72) Inventor Yoshimasa Koide 3-58, Era-cho, Hyuga City, Miyazaki Prefecture Triac Co., Ltd.

Claims (5)

[Claims] 1. At least one meteorological observation sensor, a data logger for converting the present meteorological information obtained from the meteorological observation sensor into an electric signal and temporarily storing the electric signal, a communication modem in the data logger, and an arbitrary interval. And a CP for transmitting the separated weather information to the CPU
Judgment means for making a judgment about a weather forecast by comparing and examining an external storage device connected to the U and accumulating past weather information and a current weather information incorporated in the CPU and past weather information extracted from the storage device. A weather forecasting posting system comprising: an interface for converting the judgment information determined in the CPU into character information; and an electronic display device connected to the interface. 2. The weather forecast posting system according to claim 1, wherein the weather observation sensor is a dew meter. 3. The weather forecast posting system according to claim 1, wherein the meteorological observation sensor comprises a thermometer, a sunshine hour meter, a rainfall meter, and an anemometer. 4. The weather forecast posting system according to claim 1, wherein the CPU is provided with a voice generating device, and the voice generating device is connected to a telephone line. 5. The weather forecast posting system according to claim 1, wherein the electronic display device is installed in a field.