JP3083345B2 - Outside air temperature prediction device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outside air temperature prediction device for predicting an outside air temperature from a current time to a time within a predetermined time.

[0002]

2. Description of the Related Art Conventionally, in order to predict an outside temperature, a forecaster, an average value of data of the same month in the past several decades, a change in air pressure, wind speed, solar radiation, and a predicted weather are considered.
That is, what humans predicted.

[0003]

As in the past, when a human makes a prediction, a skilled forecaster is required, and when processing predicted outside temperature data with a mechanical device, it is necessary to use a keyboard or the like. There was a problem that the user had to input and heavily depended on human power. SUMMARY OF THE INVENTION It is an object of the present invention to provide a device capable of independently predicting the outside air temperature without depending on human power and outputting the predicted outside air temperature to other mechanical devices.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has an outside air temperature sensor for measuring and outputting an outside air temperature at regular time intervals, and a sensor for measuring the outside air temperature. Data RAM storing the stored outside air temperature and data R storing the past outside air data.
OM, a program ROM storing prediction means for predicting an outside air temperature at a specific time based on the outside air temperature stored in the data RAM and the data ROM, and a CPU executing the prediction means stored in the program ROM; An output device or an output terminal for outputting a prediction result.The program ROM stores the outside air temperature at a specific time as a linear expression of the outside air temperature in an arbitrary time range before that, and calculates a coefficient of this linear expression. A prediction means for generating a predicted outside air temperature at a specific time by a linear expression based on the outside air temperature stored in the data RAM, based on the outside air temperature stored in the data RAM, based on the outside air temperature stored in the data ROM. is there.

In generating the coefficients of the linear equation, an approximate range is set above and below the outside air temperature stored in the data RAM, and the continuous outside air temperature is determined by the outside air temperature within this approximate range and the outside air temperature. The outside air temperature following the temperature is read from the data ROM, and a coefficient is generated based on the outside air temperature by the least square method. The outside air temperature measured at regular intervals by the outside air temperature sensor is stored in a data RAM, and past outside air temperatures within an approximate range of the outside air temperature are read out from a data ROM together with the continuous outside air temperature. A coefficient of a linear expression representing a predicted temperature at a specific time is generated by the least squares method based on the obtained outside air temperature, and a predicted external air temperature at a specific time is calculated by the linear expression based on the outside air temperature stored in the data RAM. Generate and output or display.

[0006]

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a block diagram of the outside air temperature prediction device of the present invention. (2) is an outside air temperature sensor that measures the outside air temperature at regular intervals. The output of this outside air temperature sensor (2) is sent to the CPU (1) via an amplifier and A / D converter (7) and an interface (8). Are combined. This C
In the PU (1), a data ROM (3) storing all-day (every hour) outside temperature data for the past 10 years in the area where the outside temperature is to be predicted, and a prediction means for predicting the outside temperature are stored. A program ROM (4), a RAM (5) for storing the outside air temperature measured by the outside air temperature sensor (2), and an output device (6) for outputting predicted data of the outside air temperature are connected.

The operation of the above-described outside air temperature prediction apparatus will be described by taking as an example a case where a prediction is output from 1:00 to 24:00 at midnight. First, the outside air temperature is set to 1 by the outside air temperature sensor (2).
The outside air temperature measured for each time and for a predetermined time (for example, 48 hours) is sequentially stored in the RAM (5). Then, as shown in FIG. 2, 24 hours ago (midnight on the previous day)
Set an approximation range ± Δ centered on the outside air temperature from the time until the time when the prediction is executed. Let the data that the outside air temperature for 24 consecutive hours from midnight is within this approximation range ± Δ, The outside temperature data at the time
Read from OM (3).

At this time, the data read from the data ROM (3) is read.
Data that is subject to seasonal temperature changes
In order to project, for example, the month including the forecast date and one month before and after ×
10 years = 30 months worth of data. here,
When the data corresponding to the approximation range ± Δ does not reach the specified number
Is to increase the range by increasing Δ, and
read out. And the read using the least squares method
Based on the data, the outside air temperature before the forecast execution time and
Next primary representing the outside air temperature Y at the time to be predicted
Equation coefficient b₀, B₁, B_Two, ... b_{twenty two}, B_{twenty three}, B_{twenty four}Predict
One set is obtained for each time to be performed. y = b₀+ B₁X₁+ B_TwoX_Two+ ... + bnXn + ... + b_{twenty three}X_{twenty three}+ B_{twenty four}X_{twenty four}  Note that X₁, X_Two, ... Xn, ... X_{twenty two}, X_{twenty three}, X_{twenty four}Each
It is the outside air temperature n hours before the predicted execution time.

Next, the obtained coefficient and 2
The predicted outside air temperature at each time is calculated by substituting the outside air temperature data measured by the outside air temperature sensor (2) for 4 hours into the above equation, and outputs it to the output device (terminal) (6).

[0010] In the above embodiment, from 1:00 am to 2:00 am
Although the example in which the outside air temperature is predicted until 4:00 is described, the present invention is not limited to this. For example, the prediction may be performed from 7:00 am to 6:00 am the next morning. Further, the predicted value may be updated as time passes.

In the embodiment described above, ± 1 including the predicted date
The data of the month is read from the data ROM and used. However, only the month including the predicted date may be used.
It can be months or three months. Furthermore, the data may be set in units of days, for example, ± 50 days, instead of in units of months. In the case where the temperature is seasonally used in an area having no characteristic, there is no need to limit such data. .

Also, in the above embodiment, the two
Although the prediction for 24 hours is performed based on the outside air temperature measured for 4 hours, the prediction may be performed based on the outside air temperature measured for a short time. However, in this case, it goes without saying that the prediction accuracy is reduced.

[0013]

Since the present invention is configured as described above, it is possible to predict a temperature change up to about 24 hours without depending on human power, and the prediction result is automatically transmitted to another mechanical device. This has the effect of being able to output.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of an outside air temperature prediction device according to the present invention.

FIG. 2 is a diagram illustrating an example of an outside air temperature change.

[Explanation of symbols]

(1) CPU, (2) Temperature sensor, (3) Data ROM, (4) Program ROM, (5) Data R
AM, (6) output device, (7) amplifier, (8) A
/ D converter.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Chisho Suwa 2940 Shinyoshida-cho, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Nippon Koei Co., Ltd. Yokohama Business Headquarters (72) Inventor Norio Komatsu Shinyoshida-cho, Kohoku-ku, Yokohama-shi, Kanagawa 2940 No. Nippon Koei Co., Ltd. Yokohama Business Headquarters (56) References JP-A-57-74629 (JP, A) JP-A-57-173777 (JP, A) Kaihei 2-189492 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01W 1/00-1/18 JICST file (JOIS)

Claims (2)

(57) [Claims] 1. An outside air temperature is measured and output at regular intervals.
Outside air temperature sensor and the outside air temperature sensor
Data RAM for storing the outside air temperature
A data ROM storing temperature data;
Identified based on M and outside air temperature stored in data ROM
Program that stores prediction means for predicting the outside air temperature at
And a prediction ROM stored in the program ROM.
A CPU that executes the steps and an output device that outputs the prediction results.
Or the output terminal, and the program ROM stores the outside air temperature at a specific time by a linear expression of the outside air temperature in an arbitrary time range before that, and the coefficient of the linear expression is the outside air temperature stored in the data ROM. minimum produced by squares method, the outside air temperature predicting apparatus which stores a prediction means for generating a predicted outside air temperature at the particular time by the linear expression based on the outside air temperature stored in the data RAM based on. 2. A method for generating a linear expression, comprising:
An approximation range is set above and below the outside air temperature stored in M, and the outside air temperature where the continuous outside air temperature is within this approximation range and the outside air temperature continuous with this outside air temperature are read from the data ROM, and based on this outside air temperature. outside air temperature predicting apparatus according to claim 1, wherein generating the coefficients by the least square method Te.