CN116464363A - Automatic shutter control system based on illumination adjustment - Google Patents

Abstract

The invention relates to the technical field of intelligent control, in particular to an automatic shutter control system based on illumination adjustment, which comprises the following components: the data acquisition module and the data processing module acquire the shutter control angle of the current shutter according to the actual temperature and the ideal temperature in the current room, the influence factors of the current shutter adjustment and the solar altitude; the angle adjusting module is used for automatically adjusting the current shutter according to the shutter control angle of the current shutter. The invention utilizes the reflection of the louver to the sunlight in different irradiation directions to determine the louver adjusting angle, and combines the louver direction information to realize the automatic control of the louver.

Description

Automatic shutter control system based on illumination adjustment

Technical Field

The invention relates to the technical field of intelligent control, in particular to an automatic shutter control system based on illumination adjustment.

Background

The shutter is a style of window, is attractive and energy-saving, is concise and attractive, does not occupy the space of the window, and ensures that the ratio of the visual window of the house is limited. And the angle of the shutter structure can be adjusted to control light and sunlight to enter the room, so that the shutter structure can be widely applied to various commercial buildings or offices. The shutter angle of the shutter is manually adjusted all the time, but with the development of intelligent furniture control, the manual control of the shutter is continuously polluted by users, so that the automatic control of the shutter becomes a hot spot of intelligent living in order to improve user experience.

The automatic control of the blind is mainly aimed at the adjustment of the blind angle. In the prior art, the shutter angle of the shutter is adjusted mostly according to the illumination intensity obtained by the sensor, but in practice, the requirements of different time periods on sunlight are different, so that the illumination intensity obtained by the sensor cannot be used as an adjusting basis of the shutter. Meanwhile, the prior art controls the louver according to the irradiation directions of sunlight at different times, but only shows the maximum sunlight entering the room of the louver at different positions at different times, the reflection relation between the irradiation directions of the sunlight and the louver surfaces of the louver cannot be shown, and meanwhile, the prior art also ignores the relation between the directions of the louver and the directions of the sunlight at different times at different positions, so that the control of the louver at different directions has deviation, and the louver cannot be accurately controlled.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides an automatic control system of a shutter based on illumination adjustment, which utilizes the reflection of the shutter surfaces of the shutter to sunlight in different illumination directions to determine the shutter adjustment angle and combines shutter direction information to realize the automatic control of the shutter.

The invention aims to provide an automatic control system of a shutter based on illumination adjustment, which is used for the shutter arranged on the side wall of a room and comprises the following components:

the data acquisition module is used for acquiring the direction of the current shutter, the solar altitude angle of the place where the shutter is positioned, and the actual temperature and the ideal temperature in the current room;

the data processing module is used for taking the difference value of a first included angle between the direction of the shutter and the north direction of the position where the shutter is positioned and a second included angle between the projection line of the current sun irradiation light on the ground and the north direction relative to the position where the shutter is positioned as the difference value between the direction of the current shutter and the sun irradiation direction;

acquiring an influence factor of current shutter adjustment according to the difference value of the current shutter orientation and the sunlight irradiation direction, the current solar altitude and the maximum solar altitude of the place where the shutter is positioned;

acquiring a shutter control angle of the current shutter according to the actual temperature and the ideal temperature in the current room, and an influence factor and a solar altitude angle of the current shutter adjustment;

the angle adjusting module is used for automatically adjusting the current shutter according to the shutter control angle of the current shutter.

In an embodiment, in the process of obtaining the shutter control angle of the current shutter, the method further includes: and obtaining the control angle of the current shutter according to the difference value between the current shutter orientation and the sunlight irradiation direction and the angle difference between the current shutter orientation and the angle when the shutter of the shutter is adjusted to be in a horizontal state.

In an embodiment, the angle of the shutter when the shutter is adjusted to a horizontal state is 90 degrees.

In an embodiment, in the process of obtaining the shutter control angle of the current shutter, if the actual indoor temperature is less than the ideal temperature and the difference value between the current shutter orientation and the sunlight irradiation direction is greater than or equal to the angle when the shutter of the shutter is adjusted to be in a horizontal state, the shutter control angle of the current shutter is set to 90 degrees.

In an embodiment, in the process of obtaining the shutter control angle of the current shutter, if the actual indoor temperature is greater than or equal to the ideal temperature, the shutter control angle of the current shutter is set to be the current solar altitude angle.

In an embodiment, the calculation formula of the shutter control angle of the current shutter is as follows:

，

in the method, in the process of the invention,the shutter control angle of the shutter at the current time t is represented; />Representing the solar altitude at the current time t; />Representing the actual temperature in the room at the current moment t; />Indicating a desired temperature in the chamber; />An influence factor representing the shutter adjustment at the current time t; />A difference value between the louver orientation and the sunlight irradiation direction at the current time t is shown.

In an embodiment, in the process of automatically adjusting the current shutter, acquiring a difference value between a shutter angle of the shutter at the previous moment of the current moment and a shutter control angle of the current shutter as an adjustment amount of the shutter angle of the current shutter;

and controlling the shutter of the shutter to be adjusted to the shutter control angle of the current shutter according to the adjustment quantity of the shutter angle of the current shutter.

In one embodiment, the method for forming a plurality of louvers on a sidewall of a chamber further comprises:

the angle control module is used for correcting the control angle of the shutter of each shutter according to the difference value of the direction of each shutter and the irradiation direction of the sunlight, the actual temperature and the ideal temperature in the current room, and obtaining the final control angle of the shutter of each shutter;

and controlling the louvers of the shutters to adjust to the final control angle according to the final control angle of the louvers of each shutter.

The invention has at least the following beneficial effects:

the invention provides an automatic control system of a shutter based on illumination adjustment, which takes the difference value of a first included angle between the direction of the shutter and the north direction of the position of the shutter relative to a second included angle between the projection line of the current sun illumination ray on the ground of the position of the shutter and the north direction as the difference value between the direction of the current shutter and the sun illumination direction; the influence of the angle of the hundred-leaf surface on the incident angle of the incident light of the sun is mainly considered, and the solar reflection light entering the room under different hundred-leaf surface angles is reflected, namely the magnitude of the incident light is quantitatively analyzed; in practice, the directions of sunlight entering the room through the shutter surfaces of the shutter are also controlled by the shutter, and different shutter directions are determined to receive different sunlight irradiation at different moments. And then according to the current indoor actual temperature and the ideal temperature, as well as the current shutter adjusting influence factor and the sun altitude angle, establishing a relation between the indoor actual temperature and the ideal temperature difference and the shutter angle, and acquiring the shutter control angle of the current shutter, so that the shutter angle of the shutter is conveniently controlled through the indoor temperature difference, and the shutter automatic control of the shutter is realized.

According to the system provided by the invention, the influence of the shutter orientation on sunlight receiving is also considered, and different shutter adjustment standards of shutters in different directions are obtained, so that the difference of shutter angles in different directions in the same area is avoided, different control can be carried out on shutters in different directions by using the system, and the applicability of the system is improved; meanwhile, different directions of a plurality of shutters in the indoor space are adopted, and the influence degree on different indoor temperatures is judged, so that different shutter angles of each shutter are obtained, the optimal control of the plurality of shutters on the temperature of the indoor space is realized, and the optimal angle of each shutter is obtained.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions and advantages of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a block diagram of an automatic control system for a blind window based on illumination adjustment according to an embodiment of the present invention.

Fig. 2 is a schematic reflection diagram of light of sunlight impinging on the louvers of the blind.

Fig. 3 is a schematic view showing reflection of light irradiated on the louver by sunlight when the louver opening angle of the louver is smaller than the current solar altitude angle.

Description of the embodiments

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the prior art, the control of the shutter in the daytime is mainly aimed at the local season and the weather of the corresponding time, wherein the shutter is introduced into a sunlight irradiation chamber in winter in sunny days, the sunlight irradiation chamber is blocked in summer, and the shutter is directly opened in cloudy days. The control is based on the heat brought by sunlight entering the room, but the opening and closing of the actual shutter and the opening angle influence the entering of natural light; therefore, the invention considers the relationship between the sunlight and the indoor temperature and the shutter angle of the shutter at the same time to control and regulate the shutter.

The invention aims at the following situations: the control of the shutter mainly aims at controlling the shutter angle, and particularly relates to the influence of the shutter angle on the entering of sunlight into a room, wherein the irradiation direction of the sun and the position of the shutter have a larger influence on the entering of the sunlight into the room.

Referring to fig. 1, which is a block diagram of an automatic control system for a blind based on illumination adjustment according to an embodiment of the present invention, the automatic control system for a blind provided on a sidewall of a room based on illumination adjustment includes: the device comprises a data acquisition module, a data processing module and an angle adjusting module; the method comprises the following steps:

a data acquisition module;

the method comprises the steps of obtaining the current shutter direction, the sun altitude angle of the shutter place, the current indoor actual temperature and the current indoor ideal temperature;

in this embodiment, the current shutter orientation is an orientation determined from the geographic location of the shutter; the solar altitude of the current location of the blind refers to the angle between the current solar ray of the location of the blind and the surface tangent plane connected to the earth through the location. The solar radiation intensity is maximum when the solar altitude is 90 degrees; the greater the degree of solar insolation, i.e. the smaller the solar altitude, the less the intensity of solar radiation.

The control of the shutter mainly depends on the influence of sunlight entering the room on the temperature, and then the shutter angle of the shutter is adjusted. The method specifically comprises the steps that a temperature sensor obtains the indoor actual temperature, the indoor actual temperature is transmitted to a data processing platform, the data processing platform reads current time information, longitude and latitude information of a shutter and direction information of a shutter user, then calculates the required angle of the shutter at the current time, and finally controls the shutter angle of the shutter according to the calculated angle through a shutter angle controller of the shutter.

The sunlight irradiates in different areas at different time and different directions, the irradiation direction of the sunlight directly influences the adjustment of the shutter direction of the shutter, and then in practice, the different directions of the shutter also influence the irradiation direction and the shutter direction of the sunlight in the shutter. Therefore, in the embodiment, the louver blades of the louver blades in different directions reflect sunlight in different directions, the angles of the louver blades are determined, and the automatic control of the louver blades is realized.

The regulation and control of the shutter mainly controls the sunlight entering the room through the reflection of the shutter to the sunlight. At this time, the irradiation direction of sunlight directly affects the reflection of the louver, so that it is necessary to obtain the irradiation direction of sunlight before the louver is adjusted. The method is characterized in that the directions of sunlight irradiation at different moments in different areas are known to have differences, the current differences mainly come from the position relation between the local and the sun relative motion track, so that in order to determine the position relation between the local and the sun relative motion track, the longitude and latitude of the current shutter are needed to be obtained firstly, the coordinates of the local area in a Beidou coordinate system (BDCS) can be obtained directly by using a Beidou positioning system, and then the longitude and latitude of the local area are obtained through coordinate conversion, so that the solar irradiation directions of the shutter at different moments are determined, and then the solar altitude angles at different moments can be obtained.

A data processing module;

the difference value of the second included angle between the projection line of the current sun-irradiated light on the ground and the north direction relative to the position of the shutter is used as the difference value between the current shutter orientation and the sunlight irradiation direction; wherein, the current solar irradiation ray refers to the solar ray when calculating the solar altitude; the north direction refers to the north direction of the geographic coordinates of the place where the shutter is located;

acquiring an influence factor of current shutter adjustment according to the difference value of the current shutter orientation and the sunlight irradiation direction, the current solar altitude and the maximum solar altitude of the place where the shutter is positioned;

acquiring a shutter control angle of the current shutter according to the actual temperature and the ideal temperature in the current room, and an influence factor and a solar altitude angle of the current shutter adjustment;

the control of the blind mainly controls the irradiation of sunlight to meet the indoor demand for sunlight, so that the demand for sunlight at different times needs to be judged before the control of the blind is performed. Firstly, determining whether to open the shutter according to the irradiation direction of sunlight, namely determining whether to open the shutter according to the current solar altitude, and closing the shutter when the current solar altitude is smaller than 0, namely corresponding to the night of the place; when the current solar altitude is greater than 0, namely the corresponding place is daytime, whether the shutter is opened or not and the opening angle are further determined according to the indoor demand of sunlight.

In this embodiment, in order to adjust the shutter angle of the shutter by using the irradiation of sunlight, the specific analysis steps are as follows:

s1, influence of shutter opening angles of shutters on sunlight entering a room;

firstly, when the shutter is completely closed, the shutter angle is defined as 0, the angle of the shutter is 90 degrees when the shutter is adjusted to be in a horizontal state, and when the shutter opening angle is consistent with the sun height angle, the sun can directly irradiate the room, but as the shutter angle is smaller, the shutter surface forms an included angle with sunlight, so that the sunlight can be reflected into the room on the shutter surface, and the larger the included angle is, the less sunlight is reflected into the room. As shown in fig. 2, fig. 2 is a schematic reflection diagram of light of sunlight impinging on the louvers of the blind; in fig. 2, the included angle between the louver surface and the sunlight is increased, which corresponds to the change from the louver surface 1 to the louver surface 2 in fig. 2, at this time, the reflected light of the sun is changed from the reflected light 1 to the reflected light 2, and the included angle between the reflected light of the sun and the window surface is decreased, i.e., the area where the reflected light of the sun may be irradiated is decreased, i.e., the sunlight entering the room is decreased. When the louver face is perpendicular to the irradiation direction of sunlight, namely the sunlight is emitted to the louver face, the sunlight is reflected regularly, namely no sunlight enters the room. Therefore, according to the influence of the angles of the louver surfaces on the incident angle of the incident light of the sun, the reflected light of the sun entering the room under different angles of the louver surfaces is reflected, namely, the size of the incident light is quantitatively analyzed, so that the accurate control of the louver blades is conveniently carried out according to the indoor requirements on the sunlight.

S2, determining the shutter angle of the shutter;

the shutter is adjusted in cloudy days at night by setting the shutter rotation angle of the shutter, and the shutter is accurately controlled according to different requirements of sunlight in sunny days.

In the opposite shutterWhen the angle of the shutter of the window is adjusted, firstly, the adjustment range of the angle of the shutter needs to be determined; it is known that when sunlight is reflected in the louver face, the angle corresponding to the louver face is the solar altitude angle, so that when the sunlight is ensured to enter the room, the angle range corresponding to the louver face isWherein->Representing the solar altitude at the current time t; />The maximum adjustment angle of the shutter is shown, and when the shutter angle exceeds the corresponding range, sunlight can be reflected outdoors. As shown in fig. 3, fig. 3 is a schematic view of reflection of sunlight on the louver when the louver opening angle of the louver is smaller than the current solar altitude angle; in fig. 3, the angle of the louver face 1 is smaller than the solar altitude angle, so that the incident light of the sun is on the same side of the normal line with the corresponding room of the window on the louver face, so that the sunlight is reflected to the outside on the louver face at this time, as in fig. 3, the light 1 is emitted, and therefore, when the sunlight enters the room, the angle range of the corresponding louver face is ensured to be as followsWherein->Representing the solar altitude at the current time t; />The maximum adjustment angle of the shutter is shown, and when the shutter angle exceeds the corresponding range, sunlight can be reflected outdoors.

S3, adjusting the shutter angle of the shutter;

after determining the influence of the shutter angle of the shutter on the sunlight entering the room, the shutter angle needs to be adjusted according to the indoor requirement on the sunlight, and as the sunlight entering the room mainly brings sunlight heat to cause indoor temperature change, the factors influencing the shutter angle of the shutter mainly lie in the relation of indoor temperature.

The desired temperature in the corresponding chamber of the controlled shutter is known to beThe actual temperature of the indoor temperature sensor is +.>At this time, the indoor temperature directly influences the requirement for sunlight, and meanwhile, different angles of the shutter blades influence natural light to enter the room. The required shutter angle for the current shutter is expressed as follows:

in the method, in the process of the invention,representing the required shutter angle of the current shutter; />Representing the actual temperature of the indoor current moment t; />Indicating the ideal indoor temperature; />Representing the relative magnitude relation of the actual temperature in the current room to the ideal temperature, at +.>When (I)>The smaller, i.e.)>The larger the>The greater the difference in temperature between the actual temperature and the ideal temperature in the room, i.e. +.>The larger the shutter angle of the shutter is, the larger the shutter angle of the shutter is adjusted, wherein 90 means that the shutter angle of the shutter corresponding to the sunlight entering the room can be adjusted to the maximum range, namely 90 degrees; that is, when the louver angle of the louver is equal to the current solar altitude angle, the louver is in a state of rotating to be parallel to the sun-irradiated light, namely, the rotating angle is 90 degrees, which means that the louver angle of the louver corresponding to the sunlight entering the room can be adjusted to the maximum range of degrees; therefore->Representation->The induced shutter angle adjustment relationship of the shutters, < ->The smaller the temperature difference is, the more sunlight needs to enter the room, namely the smaller the angle of the shutter; />The solar altitude at the current time t is indicated.

Is indicated at->In the case of (2), the current actual indoor temperature is +.>When the shutter angle of the shutter is required; in the adjusting process, firstly, the shutter angle of the shutter is opened from a closed state to the current sun altitude angle +.>After that, pass->As the coefficient of the adjustment range of the shutter angle of the shutter, the maximum adjustable 90 degrees of the shutter angle of the shutter corresponding to the sunlight entering the room is adjusted, namely, the actual temperature and the ideal temperature in the room are used for judging how big the shutter angle of the shutter needs to be adjusted, so that the sun-shading shutter is suitable for the sun-shading shutter>The duty cycle in the maximally adjustable angle 90 is used as the shutter opening +.>The angle of opening is required on the basis of (i) by +.>Add->The duty cycle in the maximally adjustable angle 90 is +.>When the shutter angle of the shutter is required. />The current indoor actual temperature is higher than the ideal temperature, and sunlight is not needed to enter the room, so that the louver angle of the louver is controlled to be +.>That is, the louver surfaces of the louver are perpendicular to the irradiation direction of sunlight, so that sunlight cannot be directly injected or reflected into a room.

It is to be noted that, the louver angle range of the louver corresponding to the sunlight entering the room is obtained through the sunlight reflection angle analysis, and then the relation between the difference between the actual indoor temperature and the ideal temperature and the louver angle of the louver is established according to the amount of the sunlight entering the room, so that the method is convenientControlling the shutter angle of the shutter through the difference of indoor temperature; at the same time, aiming at the requirement of light in the daytime, the embodiment is thatNamely, when the sunlight is not required to enter the room, the louver angle of the louver is set to be +.>And more outdoor ambient light is obtained to enter the room while the indoor temperature is not influenced by sunlight, so that indoor light is ensured.

According to the analysis of the steps S1-S3, the louver angle of the louver is determined based on the influence of sunlight irradiation on the indoor temperature, but in practice, the directions of sunlight entering the indoor through the louver surfaces of the louver are also subject to the louver, and different louver directions are determined to receive different sunlight irradiation at different moments.

Therefore, a difference value of a first included angle between the direction of the shutter and the north direction of the position of the shutter and a second included angle between the projection line of the current sun-irradiated light on the ground and the north direction of the position of the shutter is used as a difference value between the direction of the current shutter and the sun-irradiated direction; wherein, the current solar irradiation ray refers to the solar ray when calculating the solar altitude; the north direction refers to the north direction of the geographic coordinates of the place where the shutter is located;

it should be noted that the second included angle between the projection line of the current sun-irradiated ray on the ground and the north direction of the known blind isSo the local orientation and the north direction have an included angle of +.>The louver can fully receive sunlight, and windows in other directions can only receive partial sunlight, so that control of the angles of the corresponding louver is affected.

In addition, the influence factors of the shutter direction on the shutter angle are influenced by various factors, and the corresponding influence factors are different at different moments, so that in order to obtain the accurate adjustment angle of the shutter, the accurate influence factors need to be obtained, and therefore, the influence factors of the current shutter adjustment are obtained according to the difference value of the current shutter direction and the sunlight irradiation direction, the current solar altitude angle and the maximum solar altitude angle of the shutter place;

the impact factor of current shutter adjustment is expressed as follows:

in the method, in the process of the invention,an influence factor representing the shutter adjustment at the current time t; />Represents the solar altitude at the current time t, < +.>The larger the current solar irradiation possibly happens in noon, the larger the sunlight intensity is, so that the influence of the sunlight entering the room on the indoor temperature is larger due to the change of the louver angle of the current louver; />The maximum solar altitude where the blind is located is represented, and the influence of the maximum solar altitude on the blind angle of the blind is 1; />Then indicate the degree of approach to the maximum solar irradiation angle, < >>The larger the shutter angle adjustment angle of the shutter is, the smaller the shutter angle adjustment angle is; />A difference value between the louver orientation and the sunlight irradiation direction at the current time t; />The bigger the sunlight entering the room is, the less the sunlight affects the temperature in the room, so the larger the shutter angle needed for balancing the indoor temperature difference is, namely +.>The larger, i.e. the larger the factor of influence of the shutter adjustment at the current moment t.

In the embodiment, according to the actual temperature and the ideal temperature in the current room, and the influence factors and the solar altitude angle of the current shutter adjustment, the shutter control angle of the current shutter is obtained;

specifically, in the process of obtaining the shutter control angle of the current shutter, the method further comprises the following steps:

acquiring a shutter control angle of the current shutter according to the difference between the actual temperature and the ideal temperature in the current room and the difference between the difference value of the current shutter orientation and the sunlight irradiation direction and the angle when the shutter of the shutter is adjusted to be in a horizontal state; wherein, the angle of the shutter when the shutter is adjusted to a horizontal state is 90 degrees; the shutter is adjusted to an angle of 0 degrees when fully closed.

Further, in the process of obtaining the shutter control angle of the current shutter, if the actual temperature in the current room is smaller than the ideal temperature and the difference value between the direction of the current shutter and the sunlight irradiation direction is smaller than the angle when the shutter of the shutter is adjusted to be in a horizontal state, obtaining the shutter control angle of the current shutter according to the actual temperature in the current room and the ideal temperature, as well as the influence factor and the sun altitude angle of the adjustment of the current shutter;

further, in the process of obtaining the shutter control angle of the current shutter, if the actual indoor temperature is smaller than the ideal temperature and the difference value between the current shutter direction and the sunlight irradiation direction is larger than or equal to the angle when the shutter of the shutter is adjusted to be in a horizontal state, the shutter control angle of the current shutter is set to be 90 degrees.

Further, in the process of obtaining the shutter control angle of the current shutter, if the actual indoor temperature is greater than or equal to the ideal temperature, the shutter control angle of the current shutter is set to be the current solar altitude angle.

In this embodiment, based on the adjustment of the louver angle by the irradiation of the sunlight analyzed in steps S1 to S3, the more accurate louver control angle of the louver is obtained by combining the difference value between the current louver orientation and the irradiation direction of the sunlight and the angle difference between the louver when the louver is adjusted to be in a horizontal state, and the calculation formula of the louver control angle of the current louver is as follows:

in the method, in the process of the invention,the shutter control angle of the shutter at the current time t is represented; />Representing the solar altitude at the current time t; />Representing the actual temperature in the room at the current moment t; />Indicating a desired temperature in the chamber; />An influence factor representing the shutter adjustment at the current time t; wherein 90 represents the degree that the louver angle of the louver corresponding to the sunlight entering the room can be adjusted to the maximum range, namely 90 degrees; that is, when the louver angle of the louver is equal to the current solar altitude angle, the louver is in a state of rotating to be parallel to the sun-irradiated light, namely, the rotating angle is 90 degrees, which means that the louver angle of the louver corresponding to the sunlight entering the room can be adjusted to the maximum range of degrees; therefore->Representation->The induced shutter angle adjustment relationship of the shutters, < ->The smaller the temperature difference is, the more sunlight needs to enter the room, namely the smaller the angle of the shutter; />Representing the solar altitude at the current time t; />A difference value between the louver orientation and the sunlight irradiation direction at the current time t; />The bigger the corresponding blind receives the smaller sunlight until +.>The corresponding blinds do not receive sunlight at all, so in +.>On the basis of->The shutter can be adjusted when in use, in the case of +.>When sunlight cannot irradiate the shutter, the shutter angle of the shutter is adjusted to 90 degrees so as to obtain more ambient light; at->Namely, when the sunlight is not required to enter the room, the louver angle of the louver is set to be +.>And more outdoor ambient light is obtained to enter the room while the indoor temperature is not influenced by sunlight, so that indoor light is ensured. />The influence factor representing the shutter adjustment by the current time t representsThe shutter angle adjusting relation of the shutter is adjusted, so that the calculated shutter control angle of the shutter is more accurate. In order to ensure that sunlight enters the room, the angle range of the louver face of the corresponding louver is set to +.>For this purpose, when->Under the condition of (1), the control angle of the shutter is adjusted toWhen the indoor temperature is considered without considering other influences, the indoor temperature is considered by only +.>The coefficient of the adjustment range of the shutter angle is +.>The method comprises the steps of carrying out a first treatment on the surface of the If other factors are considered at the same time, by +.>For a pair ofThe adjustment is carried out, so that a more accurate shutter control angle of the shutter is obtained; wherein +.>The larger the shutter angle is, the larger the shutter angle is adjusted。

The angle adjusting module is used for adjusting the angle of the beam,

the automatic adjustment device is used for automatically adjusting the current shutter according to the shutter control angle of the current shutter.

In the process of automatically adjusting the current shutter, acquiring a difference value between the shutter angle of the shutter at the last moment of the current moment and the shutter control angle of the current shutter as an adjustment quantity of the shutter angle of the current shutter;

and controlling the shutter of the shutter to be adjusted to the shutter control angle of the current shutter according to the adjustment quantity of the shutter angle of the current shutter.

It is to be noted that, considering the influence of the shutter orientation on sunlight receiving, different shutter adjustment standards of shutters in different directions are obtained, so that the difference of shutter angles of shutters in different orientations in the same area is avoided; the application of the method can control the shutters in different directions differently, and improves the applicability of the method.

Referring to fig. 1, the automatic control system for a shutter based on illumination adjustment provided in the embodiment may also be used for a plurality of shutters provided on a side wall of a room, and further includes, on the basis of including a data acquisition module, a data processing module, and an angle adjustment module:

an angle control module;

the control device is used for correcting the control angle of the shutter of each shutter according to the difference value of the direction of each shutter and the irradiation direction of sunlight, the actual temperature and the ideal temperature in the current room, and obtaining the final control angle of the shutter of each shutter;

and controlling the louvers of the shutters to adjust to the final control angle according to the final control angle of the louvers of each shutter.

In the embodiment, the shutter angles of shutters with different directions at different moments are obtained; however, in the above-mentioned angle adjustment module, all of the angle adjustment modules are adjusted for a single louver, in practice, a plurality of louvers are disposed in the same room space, and the directions of the louvers may be different, so that different louvers need to be adjusted differently;

factors influencing the simultaneous adjustment of a plurality of shutters are mainly different orientations of the plurality of shutters and the size relation between an indoor space and the shutters, and specifically, the shutter angle of each shutter has the following expression:

in the method, in the process of the invention,a difference value of the j-th louver orientation and the sunlight irradiation direction in the indoor space at the current time t is shown; />A minimum value representing the difference value between all louver orientations at the current time t and the sunlight irradiation direction,the control angle of the corresponding louver has the greatest influence on the indoor temperature, so +.>Indicating the effect of the louver angle of the jth louver on the indoor temperature +.>The larger the louver angle of the jth louver has larger influence on the indoor temperature, so that the louver angle of the louver required for adjusting the indoor temperature is smaller; />Indicating the ideal indoor temperature>Representing the actual temperature in t chamber at the current moment +.>Indicating the temperature to be regulated in the current room, +.>The larger theThe larger the required shutter angle of the shutter; />The louver control angle of the louver corresponding to the difference value between the minimum louver orientation and the sunlight irradiation direction at the current time t is +.>The shutter control angle of the corresponding shutter; />Representing the solar altitude at the current time t; />Representing the final control angle of the louver of the jth louver; at->On the basis of (a) the base,the blinds of the blind can be adjusted, i.e. by +.>The method comprises the steps of representing that the calculated louver control angles of the obtained louvers are adjusted again by considering the difference value between the direction of each louver and the sunlight irradiation direction, so that the final louver control angles of the louver are obtained; at->When sunlight cannot irradiate the shutter, the shutter angle of the shutter is adjusted to 90 degrees so as to obtain more ambient light; at->Namely, when the sunlight is not required to enter the room, the louver angle of the louver is set to be +.>Obtaining a more-chamber outer ring while ensuring that the indoor temperature is not influenced by sunlightThe ambient light enters the room, so that the indoor light is ensured. Therefore, different directions of a plurality of shutters in the indoor space are simultaneously oriented, and different influence degrees on the indoor temperature are judged, so that different shutter angles of each shutter are obtained, the optimal control of the plurality of shutters on the temperature of the indoor space is realized, and the optimal angle of each shutter is obtained.

In this embodiment, the louvers of the louver are controlled to adjust to the final control angle according to the final control angle of each louver. Specifically, in the process of automatically adjusting each current shutter, a difference value between the shutter angle of each shutter at the moment previous to the current moment and the final control angle of the shutter corresponding to the current shutter is obtained as the adjustment quantity of the shutter angle of each current shutter; and controlling the corresponding shutter of each shutter to adjust to the final control angle of the shutter of each shutter according to the adjustment amount of the shutter angle of each shutter.

Therefore, in this embodiment, by determining the shutter angles corresponding to different environments at different times, then determining, in the shutter control system, the adjustment amount of the shutter angle at the current time according to the shutter angle obtained at the current time and the shutter angle at the previous time, and so on, the automatic control of the shutter at different environments at different times is realized.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (8)

1. Automatic shutter control system based on illumination is adjusted, a serial communication port is used for the shutter that is equipped with on the room lateral wall, includes:

the data acquisition module is used for acquiring the direction of the current shutter, the solar altitude angle of the place where the shutter is positioned, and the actual temperature and the ideal temperature in the current room;

the data processing module is used for taking the difference value of a first included angle between the direction of the shutter and the north direction of the position where the shutter is positioned and a second included angle between the projection line of the current sun irradiation light on the ground and the north direction relative to the position where the shutter is positioned as the difference value between the direction of the current shutter and the sun irradiation direction;

acquiring an influence factor of current shutter adjustment according to the difference value of the current shutter orientation and the sunlight irradiation direction, the current solar altitude and the maximum solar altitude of the place where the shutter is positioned;

acquiring a shutter control angle of the current shutter according to the actual temperature and the ideal temperature in the current room, and an influence factor and a solar altitude angle of the current shutter adjustment;

the angle adjusting module is used for automatically adjusting the current shutter according to the shutter control angle of the current shutter.

2. The automatic control system for a blind based on illumination adjustment according to claim 1, further comprising, in the process of obtaining the current control angle of the blind: and obtaining the control angle of the current shutter according to the difference value between the current shutter orientation and the sunlight irradiation direction and the angle difference between the current shutter orientation and the angle when the shutter of the shutter is adjusted to be in a horizontal state.

3. The automatic control system for a blind based on illumination adjustment according to claim 2, wherein the angle of the blind when the blind is adjusted to a horizontal state is 90 degrees.

4. The automatic control system for a blind based on illumination adjustment according to claim 3, wherein in the process of obtaining the control angle of the blind of the current blind, if the actual temperature in the current room is less than the ideal temperature and the difference value between the current blind orientation and the sunlight irradiation direction is greater than or equal to the angle when the blind of the current blind is adjusted to be in a horizontal state, the control angle of the blind of the current blind is set to 90 degrees.

5. The automatic control system for a blind based on illumination adjustment according to claim 2, wherein the current blind control angle is set to the current solar altitude angle if the current indoor actual temperature is greater than or equal to the ideal temperature in the process of obtaining the current blind control angle.

6. The automatic control system for a blind based on illumination adjustment according to claim 2, wherein a calculation formula of the blind control angle of the current blind is as follows:

，

in the method, in the process of the invention,the shutter control angle of the shutter at the current time t is represented; />Representing the solar altitude at the current time t;representing the actual temperature in the room at the current moment t; />Indicating a desired temperature in the chamber; />An influence factor representing the shutter adjustment at the current time t; />A difference value between the louver orientation and the sunlight irradiation direction at the current time t is shown.

7. The automatic control system for a blind based on illumination adjustment according to claim 1, wherein a difference between a blind angle of the blind at a previous time at a current time and a blind control angle of the current blind is obtained as an adjustment amount of the blind angle of the current blind in the process of automatically adjusting the current blind;

and controlling the shutter of the shutter to be adjusted to the shutter control angle of the current shutter according to the adjustment quantity of the shutter angle of the current shutter.

8. The automatic control system for a blind based on illumination adjustment according to claim 1, characterized in that a plurality of blinds are provided on a side wall of a room, further comprising:

the angle control module is used for correcting the control angle of the shutter of each shutter according to the difference value of the direction of each shutter and the irradiation direction of the sunlight, the actual temperature and the ideal temperature in the current room, and obtaining the final control angle of the shutter of each shutter;

and controlling the louvers of the shutters to adjust to the final control angle according to the final control angle of the louvers of each shutter.