JPH08121044A - Automatic control method for blind - Google Patents

Abstract

PURPOSE: To save energy by a method wherein based on a solar radiation time zone, an indoor temperature, and an outside air temperature, opening and closing of a blind disposed on a window surface and the opening of blades are controlled. CONSTITUTION: The conditions, such as a date, a time, temperature, a sunrise time, a sunset time, a southing time, a cooling heating pattern, and the temperature of each of blinds and the operation pattern of the blind are set by an operation ten-key 8. A CPU 1 makes decision based on the set items of the above, and detecting signals from a room temperature sensor 10 and an outside air sensor 11 and controls opening closing of the blind and the opening of the blade are controlled through operation of a motor 15 for opening and closing a blind facing the south and a motor 16 for opening and closing a blind facing the west. During heating, solar radiation is inputted, and at a time zone where no solar radiation is available, the blind is closed to reduce incurring of a heat loss. Further, at a solar radiation time zone during a summer season, the blind is normally used and at a time zone where solar radiation is unavailable, the blind is opened and closed according to the magnitude of an outside air temperature. This constitution effectively utilizes a solar radiation amount without measuring a solar radiation amount.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic blind control method for controlling natural energy to save energy.

[0002]

2. Description of the Related Art The air-conditioning load of a living room and the comfort of the indoor environment are greatly affected by solar radiation from a window. Especially in highly airtight and highly insulated houses, it is often seen that solar radiation causes an excessive rise in room temperature even in winter.
The most effective way to block this solar radiation is to arrange a blind on the window surface. However, this blind cannot be expected to have a great effect on energy saving and improvement of comfort unless proper control is performed. For this reason, conventionally, a method of detecting the amount of solar radiation to control the blind has been proposed, but in order to perform this control, the amount of solar radiation needs to be measured, which causes a problem of high cost. Further, a method of opening and closing a blind by a schedule operation has been put into practical use, but it is insufficient to satisfy energy saving and comfort.

The present invention is to solve the above-mentioned problems, and by opening and closing the blind and controlling the wing opening by only detecting the temperature by the room temperature sensor and the outside air temperature sensor without measuring the amount of solar radiation. It is an object of the present invention to provide an automatic blind control method capable of satisfying energy saving and comfort by effectively utilizing the amount of solar radiation.

[0004]

Therefore, an automatic blind control method according to the present invention is provided in a room heated and cooled,
Blinds that are installed on the window surface and whose opening and closing and wing opening are controlled, room temperature sensor, outside air temperature sensor, date, time, rising sun time, sunset time, west incident time, air conditioning settings and blinds. And an input device for setting the operation pattern, and controls the opening and closing of the blind and the wing opening according to the solar radiation time zone, the room temperature, and the outside air temperature. In addition, as an embodiment, the opening and closing of the blind and the wing opening, when heating, open the blind to take in as much solar radiation as possible, when the room temperature is higher than the set value, the wing opening of the blind as much as possible. The blind opening is increased as much as possible while restricting the solar radiation during cooling, and is closed as much as possible when the room temperature is lower than the outside temperature, and closed at night.

[0005]

In the present invention, the excessive solar radiation amount is suppressed in the winter season to improve the comfort, and the solar radiation amount is cut off in the summer season to save energy.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a method 1 for automatically controlling a blind according to the present invention.
It is a block diagram of the control system which shows an Example.

The CPU 1 is a control device for calculating and processing based on an input signal and stored data and outputting a control signal, R
OM2 is a storage device for storing programs, RAM3 is a storage device for storing control data, and clock generator 4 is
A device for generating a reference clock from the signal of the oscillator 5, a runaway detector 6 detects runaway of the output signal of the CPU 1,
1 is a device that outputs a reset signal, and the power supply circuit 7 is an IC
To the RAM 3 and the clock generator 4 as a backup power source.

The numeric keypad 8 for operation is used for date, time, temperature,
Ascending time, sunset time, south-central (west incident) time, setting of air conditioning pattern, condition setting for each blind (when heating,
Input device for setting the temperature during cooling, which room temperature sensor to operate, whether it is automatic or manual, and the operation pattern of the blind (for example, operation of three states of blind opening, closing, and blade opening horizontal) Is. The LCD display 9 is a display device for displaying date, time, outdoor temperature, indoor temperature of each living room, blind state (for example, open / close of blind, horizontal wing opening), and the like. Blind open means a state in which the blind is raised, blind closed means a state in which the blind is lowered and the wing opening is closed, and horizontal wing opening is a state in which the blind is lowered and the wing opening is increased to the maximum. Say.

The room temperature sensor 10 is a sensor for detecting the temperature of a room in which blinds are arranged on the south and west sides, and one outside air temperature sensor 11 is arranged outdoors. The signals from the room temperature sensor 10 and the outside air temperature sensor 11 are switched by the analog multiplexer 12, converted into digital signals by the A / D converter 13, and sent to the CPU 1. The CPU 1 performs the determination process according to the above input items,
The output signal is sent to the south-side blind opening / closing motor 15 and the west-side blind opening / closing motor 16 via the triac output unit 14 to control the opening / closing of the blinds and the blade opening.

FIG. 2 is a flow chart for explaining the control method of the present invention having the above structure. [At the time of heating] Nissho-Nanchu: When the room temperature is above the set temperature, the wing opening of the south blind is horizontal and the west blind is closed. When the room temperature is below the set temperature, the south blind is opened and the west surface is open. Close the blinds.

South Central to Sunset When the room temperature is equal to or higher than the set temperature, the wing opening of the south blind is horizontal, and the wing opening of the west blind is horizontal, and when the room temperature is equal to or lower than the set temperature, the south blind is opened. , Open the western blind.

From the sunset to the next day, the south and west blinds are closed.

As described above, the solar radiation is taken in as much as possible during the heating time, and the blind is closed to reduce the heat loss when there is no hindrance to the scenery during the time when the solar radiation is not present. If the room temperature exceeds the specified temperature, block the sunlight. The specified temperature is set to the heating set temperature plus 1 to 2 ° C to avoid interference with the heating control. By this method, below the specified temperature,
The heating control is performed while the blind remains open, and when the temperature is higher than the specified temperature, the heating is stopped and the wing opening of the blind is increased within a range where the scenery is maintained. It will be closed after sunset to reduce heat loss and to prevent crime.

[Summer] 6 o'clock to south middle When the room temperature is above the outside temperature, the blade opening of the blind on the south side is horizontal, and the opening of the blind on the west side is horizontal, and when the room temperature is below the outside temperature, the outside surface is south. The wing opening of the blind is horizontal and the west blind is closed.

From south central to sunset The wing opening of the south blind is horizontal and the west blind is closed.

From sunset to 6:00 on the next day When the room temperature is equal to or higher than the outside temperature, the wing opening of the south blind is set horizontally, and the wing of the west blind is set horizontally. When the room temperature is equal to or lower than the outside temperature, the south blind is opened. Closed, closed the western blind.

As described above, the blinds are always used in order to cut off the solar radiation during the time when the solar radiation is present, and the blade angles of the blinds are horizontal when the landscape is required and closed when the landscape is not obstructed. And When there is no sunlight,
When the outside air temperature is higher than room temperature, it is closed to prevent heat inflow, and when the outside air temperature is lower than room temperature, it is horizontal and heat is discharged. If there is a problem with the landscape, keep it horizontal instead of closing it.

FIG. 3 shows an example of a specific control method when blinds are arranged on the windows on the south and west sides. However, the windows on the west side do not affect the landscape, and the specified temperature for controlling the blinds is the heating set temperature of 22 ° C.
It was 23 ° C., which was 1 ° C. higher.

Next, the blinds 10A, 10B, 10C, 10D, 10 are installed in a highly airtight and highly insulated house as shown in FIG.
The simulation result when E is arranged will be described.

[Winter Season] FIGS. 5 and 6 show the appearance of excess room temperature when the automatic control according to the present invention is performed (A) and when the blind control is not performed and the system is opened (B). ing. Moreover, FIG. 7 has shown the result of having compared the energy amount of the excessive solar radiation which injects into the room during a heating period. The heating period is 211 from October 6th to May 14th.
The heating time is from 6 am to 24 pm daily.

[Summer] FIG. 8 shows a difference in cooling load between the case where the automatic control according to the present invention is performed (A) and the case where the blind state is not controlled and the state is opened (B). The cooling period is 71 days from July 3 to September 11, and the cooling time is from 13:00 to 24:00.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and various modifications can be made. For example, in the above embodiment,
The operation pattern of the blind is 3 for opening, closing, and wing opening horizontal.
Although the operation of the state is described, the blade opening of the blind may be controlled stepwise or steplessly.

[0023]

As is apparent from the above description, according to the present invention, the opening and closing of the blind and the blade control are performed only by the temperature detection by the room temperature sensor and the outside air temperature sensor without measuring the amount of solar radiation. Energy saving and comfort can be satisfied by effectively using the amount.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a control system showing an embodiment of an automatic blind control method of the present invention.

FIG. 2 is a flow chart for explaining a control method of the present invention.

FIG. 3 is a diagram showing an example of a specific control method when blinds are arranged on the windows on the south and west sides.

FIG. 4 is a plan view showing an example of a house set to simulate the present invention.

FIG. 5 is a diagram for explaining the effect of the present invention.

FIG. 6 is a diagram for explaining the effect of the present invention.

FIG. 7 is a diagram for explaining the effect of the present invention.

FIG. 8 is a diagram for explaining the effect of the present invention.

[Explanation of symbols]

1 ... CPU, 2 ... ROM, 3 ... RAM, 4 ... Clock generator, 5 ... Oscillator 6 ... Runaway detector, 7 ... Power supply circuit, 8 ... Operation numeric keypad,
9 ... LCD display 10 ... Room temperature sensor, 11 ... Outside temperature sensor, 12 ... Analog multiplexer 13 ... A / D converter, 14 ... Triac output section 15 ... South side blind opening / closing motor, 16 ... West side blind opening / closing motor

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Jinichiro Yoshida 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Hiroyasu Okuyama 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Hata Sakurai 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd.

Claims (2)

[Claims] 1. A blind, which is arranged on a window and whose opening and closing and wing opening are controlled, a room temperature sensor, an outside air temperature sensor, a date, a time, a rising sun time,
It is equipped with an input device for setting the sunset time, the western incident time, the setting of air conditioning and the operation pattern of the blinds,
An automatic blind control method comprising controlling the opening and closing of the blind and the opening of the wing according to a solar radiation time zone, an indoor temperature, and an outside air temperature. 2. Opening and closing of the blinds and opening of the blinds so that the blinds are opened to take in solar radiation as much as possible during heating, and the opening of the blinds is increased as much as possible when the room temperature is higher than a set value. It is characterized by closing at night, increasing the wing opening of the blinds as much as possible while limiting solar radiation during cooling, closing as much as possible when the room temperature is lower than the outside temperature, and closing at night. The method for automatically controlling a blind according to claim 1.