WO2019114365A1

WO2019114365A1 - Air conditioner capable of projection and calibration method for air conditioner

Info

Publication number: WO2019114365A1
Application number: PCT/CN2018/107441
Authority: WO
Inventors: 刘金龙; 刘聚科; 程永甫; 吕兴宇; 徐贝贝
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2017-12-12
Filing date: 2018-09-26
Publication date: 2019-06-20
Also published as: CN108278720A; CN108278720B

Abstract

Disclosed is an air conditioner capable of projection, comprising a projection module, which comprises: a storage unit, which stores the number of initial front lenses, the number of initial rear lenses, and a first distance; a collection unit, which collects a boundary dimension of a display unit; an analysis unit, which calculates a set magnification factor; and a calculation unit, which calculates a set focal distance according to the set magnification factor and the first distance, wherein the analysis unit determines a numerical interval to which the set focal distance belongs and correspondingly sets the number of front lenses and the number of rear lenses according to a numerical interval invoked in the storage unit in a determination result, and a calibration signal is generated according to the number of initial front lenses and the set number of front lenses and/or the number of initial rear lenses and the set number of rear lenses; and the number of front lenses and/or the number of rear lenses are calibrated according to the calibration signal before a normal operation of the air conditioner is started. Also disclosed is a calibration method for an air conditioner. The present invention is not limited by the layout of an air-conditioned room, and does not require manual focusing by a user.

Description

Method for calibrating air conditioner and air conditioner

Technical field

The present invention relates to the field of air conditioning equipment, and in particular, to a projectionable air conditioner, and a calibration method of the air conditioner.

Background technique

The wall-mounted air conditioner and the cabinet air conditioner which are common in the prior art are provided with a flat panel display represented by an LED display screen, and the LED display screen is composed of a plurality of LED modules to display by text or simple image. Status, operating mode and operating parameters during air conditioning operation. Some air conditioners also use the form of digital tubes to meet the display function. Since the flat panel display can only be placed on the housing of the air conditioner, the display area and display content are limited. In order to expand the display effect of the air conditioner, there is an air conditioner with a projection function on the market. This type of air conditioner uses a laser projection form, but the laser projection cost is high, which is not conducive to popularization.

A Chinese patent application "a mobile air conditioner with a projection function" (authorization bulletin number CN203310047U) discloses a technical solution in which a projection device connected to a circuit board is provided in a housing, and the projection device includes projections arranged in order from top to bottom. Mirror, LCD display and LED backlight. The projection mirror is mounted on the housing, the adjustment lens is located between the projection mirror and the LCD display mirror, and the adjustment lens is disposed on the focus adjustment wheel link, and the end of the focus adjustment wheel link is provided with a tooth that meshes with the focus adjustment wheel, and the focus adjustment wheel Rotate to drive the focus adjustment wheel link and adjust the lens to move up and down. The transmitter base is used to hold the LCD display mirror and LED backlight. See paragraphs 0016 to 0018 of the specification. In the comparison file, the mobile air conditioner does not use laser projection. However, due to the structural characteristics of the mobile air conditioner itself, it can be moved indoors, so its projection position is not limited, but whether it is a wall-mounted air conditioner or a cabinet air conditioner indoors The machine cannot move freely indoors, so the above projection device cannot meet the actual use needs. In addition, the focal length adjusting wheel link and the focal length adjusting wheel are connected by meshing, and collision may occur during the moving process, resulting in out of focus, blurred imaging, and it is difficult for the user to identify and correct the user, thereby reducing the user's Actual experience. In addition, the manner of meshing the transmission has no calibration coordinates and the area of the imaging area cannot be accurately controlled.

technical problem

In summary, for the specific needs of the air conditioner, especially the wall-mounted air conditioner projection function, the prior art lacks a solution that is reasonable in cost and has a good user experience.

Technical solution

In order to meet the specific needs of the air conditioner, especially the wall-mounted air conditioner projection function, the present invention provides a projectionable air conditioner.

The present invention provides a projectionable air conditioner, including an indoor unit casing, and further comprising:

a projection module, the projection module comprising:

a storage unit, wherein the storage unit stores an initial number of front lenses, an initial number of rear lenses, and a first distance, wherein the first distance is a distance between an initial rear lens center and a projection background;

a collecting unit, wherein the collecting unit collects an outer dimension of the display unit;

An analysis unit, the analysis unit determines a display area setting size according to a distance between the air conditioner housing and the projection background, and calculates a set magnification according to the external size of the display unit and the display area setting size;

a calculating unit, the calculating unit calculates a set focal length according to the set magnification and the first distance; the analyzing unit determines a numerical interval to which the set focal length belongs, and is in the storage unit according to the determination result Calling the set number of front lenses corresponding to the numerical interval and setting the number of rear lenses, and setting the number of front lenses and the number of front lenses and/or the number of initial rear lenses according to the number of initial front lenses The number of fixed rear lenses generates a calibration signal;

The number of front lenses and/or the number of rear lenses are calibrated based on the calibration signal prior to starting normal operation of the air conditioner.

Further, if the set focal length belongs to the first set interval, one of the set front lens numbers is randomly selected in the first range, and one set rear lens number is randomly selected in the third range. ;

If the set focal length belongs to the second set interval, randomly selecting one of the set front lens numbers in the second range, and randomly selecting a set rear lens number in the fourth range;

The upper thresholds of the first set interval and the second set interval are sequentially incremented, and the upper thresholds of the first range and the second range are sequentially incremented, and the upper thresholds of the third range and the fourth range are sequentially incremented. .

Further, the calibration signal is a difference between the number of the set front lens and the initial front lens, and/or the difference between the set rear lens number and the initial rear lens number.

Further, calculating the set focal length f comprises the following steps:

Calculating a second distance u according to the set magnification factor K and the first distance v, where K=v/u;

The second distance u is a distance between the display unit and the center of the initial rear lens;

The set focal length f is calculated according to the first distance v and the second distance u, where 1/u+1/v=1/f.

Further, calculating the set focal length f further includes the following steps:

After calculating the set focal length f, determining whether the second distance satisfies the following numerical relationship f<u<2f, If it is satisfied, the numerical interval to which the set focal length belongs is further determined.

Further, after the calibration, the front lens is disposed between the light source and the display unit, and the rear lens is disposed between the display unit and the projection background.

Optionally, a mirror is further disposed between the display unit and the projection background.

Preferably, the display unit is an LCD display unit.

Preferably, the light source is an LED light source.

The projectionable air conditioner disclosed by the invention obtains accurate calibration before installation and use, is not limited by the layout of the air-conditioned room, does not require manual focusing of the user, can ensure the display effect well, and adopts the LCD display unit instead of the laser. The way of projection reduces the cost of the projection display on the one hand, and optimizes the projection display effect on the other hand, which is convenient for the user to use.

The invention also provides a calibration method for an air conditioner, comprising the following steps:

Collecting the outer dimensions of the display unit;

Determining a display area setting size according to a distance between the air conditioner housing and the projection background, and calculating a set magnification according to the external size of the display unit and the display area setting size;

Calculating a set focal length according to the set magnification and the first distance, determining a numerical interval to which the set focal length belongs, and calling a set front projection number corresponding to the numerical interval according to the determination result and setting a rear lens Quantity, and generate a calibration signal based on the number of initial front lenses and the number of set front lenses and/or the number of initial rear lenses and the number of set rear lenses;

Beneficial effect

The air conditioner calibration method provided by the invention can ensure that the display effect of the air conditioner using the LCD display unit is consistent and clear when used in an air-conditioned room of different environments, and the user does not need manual manual focus adjustment when using, and has the advantages of being convenient for the user to use.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic block diagram showing a structure of a projection apparatus after calibration of a specific application scenario of the present projectorable air conditioner;

2 is a schematic structural view showing a projection apparatus before calibration of the projectionable air conditioner of the present invention;

3 is a schematic block diagram showing the structure of a projection module in a projectionable air conditioner according to the present invention;

4 is a flow chart of a method for calibrating an air conditioner disclosed in the present invention.

Embodiments of the invention

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that the terms "first", "second" and the like in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or order. It is to be understood that the data so used may be interchanged where appropriate, so that the embodiments of the invention described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device comprising a series of steps or units is not necessarily limited to those that are clearly listed Steps or units, but may include other step units that are not explicitly listed or inherent to such processes, methods, products or devices.

Conventionally, the display panel is provided on the air conditioner, and the display module has been highly integrated. The display effect is sufficient to ensure clarity and accuracy, and flexible display effects can be achieved according to different models. Unlike the conventional display panel of the air conditioner, if the air conditioner is provided with a projection function, the projection effect is the primary parameter considered by the user. Since the content of the projection is basically the basic operating state and basic operating parameters of the air conditioner, if the projection image is turned on, the image distortion often appears, the text, the image is blurred, the image is too large or too small on the projection background 106, or the virtual focus is In the case, the user needs to manually adjust, which will seriously affect the user experience. Most users will abandon the use of the projection function, making the projection function of the air conditioner into a chicken rib. At the same time, since the projection of the air conditioner is basically projected on the wall of the air-conditioned room and a similar white or gray plane, the flatness of the wall, the ceiling, the floor and the like is poor compared to the high-gain projection screen of the ordinary projector, and also It is limited by the installation position of the wall-mounted air conditioner, the installation location of the building installation hole, various restrictions on the interior decoration and the furnishings, and the size of the display area needs to be adjusted according to actual needs. Therefore, the projector air conditioner can be recalibrated according to the specific use scene before being installed at the desired work place, ensuring that the air conditioner has the same projection display effect in different usage scenarios. As shown in FIG. 1 to FIG. 3, the projectable air conditioner, especially the wall-mounted air conditioner, provided in this embodiment includes an indoor unit casing. A projection module 200 is disposed in the indoor unit housing. The basic projection device of the projection module 200 is a display unit 102 represented by an LCD, and the light source 104 is an LED lamp. A front lens is disposed between the display unit 102 and the light source 104, and a rear lens is disposed between the display unit 102 and the projection background 106. A mirror can also be provided between the rear lens and the projection background 106, depending on actual usage requirements.

In the present embodiment, a good projection effect in different projection environments is ensured by calibrating the number of front lenses and the number of rear lenses. Specifically, a storage unit 201 is disposed in the projection module 200. The storage unit 201 stores an initial number of front lenses, an initial number of rear lenses, and a first distance. The first distance is the vertical distance between the center of the initial rear lens and the projected background 106. The initial number of front lenses, the number of initial rear lenses, and the horizontal position of the center of the initial front lens, and the horizontal position of the center of the initial rear lens are permanently selected by the air conditioner manufacturer and stored in the storage unit 201 before shipment. The fixed point value, the reference point of the positional parameter is preferably the edge of the air conditioner housing 100 closest to the projected background 106. Before the predetermined model is installed and used, the projection background 106 of the predetermined installation position is input with respect to the position information of the indoor unit casing through the human-machine interaction interface or the remote communication device, and the initial rear lens center and the projection background 106 are further calculated. The vertical distance between the first distance, the storage unit 201 also stores the first distance between the initial rear lens center and the projected background 106 as a selected fixed point value.

The outer dimensions of the display unit 102, such as the width of the LCD display unit 102, or the area of the LCD display unit 102, which the manufacturer of the air conditioner will employ. The acquisition unit 202 collects the external dimensions of the display unit 102, which is typically provided by the manufacturer of the LCD display unit 102.

The air conditioner housing 100 has different shapes, the area of the air-conditioned room is also different, and the size of the projection background 106 is also different. Therefore, the analysis unit 203 is further provided in the projection module 200. Preferably, the analysis unit 203 stores a one-to-one correspondence between the housing size corresponding to the air conditioner model, the distance between the air conditioner housing 100 and the projection background 106, and the display area setting size. The air conditioner model is input through the human-machine interaction interface, and the analysis unit 203 determines the display area setting size according to the air conditioner model and the distance between the air conditioner housing 100 and the projection background 106. The one-to-one correspondence between the size of the housing corresponding to the air conditioner model, the distance between the air conditioner housing 100 and the projection background 106, and the set size of the display area is determined by the experimental data as the visually most comfortable display area. Size. For the same model of the same model of air conditioner models. The analyzing unit 203 can determine the display area setting size according to the distance between the air conditioner housing 100 and the projection background 106. The analyzing unit 203 further calculates the set magnification according to the outer size of the display unit 102 and the display area setting size. It should be noted that if the external unit of the display unit 102 collected by the acquisition unit 202 is the width of the LCD display unit 102, the display area setting size determined by the analysis unit 203 is also the width. If the external size of the display unit 102 collected by the acquisition unit 202 is an area, the display area setting size determined by the analysis unit 203 is also an area.

The calculation unit 204 in the projection module 200 calculates the set focal length based on the set magnification and the first distance. The analyzing unit 203 determines the numerical interval to which the set focal length belongs, and calls the set number of the front lenses corresponding to the numerical interval and the number of the set rear lenses in the storage unit 201 according to the determination result, and according to the initial front lens number and setting. A calibration signal is generated by the number of front lenses and/or the number of initial rear lenses and the number of set rear lenses.

Specifically, calculating the set focal length f includes the following steps:

First, the second distance u is calculated based on the set magnification K obtained by the analysis unit 203 and the first distance v. Wherein the second distance u is the distance between the display unit 102 and the center of the initial rear lens. Where K=v/u.

Next, the set focal length f is calculated based on the obtained second distance u and the first distance v, where 1/u+1/v=1/f.

Preferably, after calculating the set focal length f, it is necessary to first determine whether the set focal length f and the second distance u satisfy the following numerical relationship: f<u<2f. If it is satisfied, the numerical interval to which the set focal length belongs is further determined, thereby ensuring an enlarged imaging relationship.

A storage focal length is set in the storage unit 201, and the number of front lenses is set, and the correspondence relationship between the number of rear lenses is set. The analyzing unit 203 determines the numerical interval to which the set focal length belongs. Preferably, the set focal length is divided into two set intervals in the storage unit 201.

If the set focal length belongs to the first set interval, one of the set front lens numbers is randomly selected in the first range, and one set rear lens number is randomly selected in the third range.

If the set focal length belongs to the second set interval, one of the set front lens numbers is randomly selected in the second range, and one set rear lens number is randomly selected in the fourth range.

The upper thresholds of the first set interval and the second set interval are sequentially incremented, and the upper thresholds of the first range and the second range are sequentially incremented, and the upper thresholds of the third range and the fourth range are sequentially incremented. . Of course, if the calculated value of the set focal length is large, more set intervals can be divided, and the upper limit threshold of the set interval is sequentially increased.

In a typical air conditioner model, generally, the first distance v is usually between 70 mm and 90 mm, and therefore, according to the set magnification of the standard room layout, the second distance u is usually between 2 mm and 3 mm, so The setting interval for setting the focal length preference is as follows:

When f ∈ (1, 2), set the number of front lenses M ₁ to 1 or 2, set the number of rear lenses M ₂ to 1, 2 or 3;

When f ∈ (2, 3), the number of front lenses M ₁ is set to 2 or 3, and the number of rear lenses M ₂ is set to 3 or 4.

For example, when the calculation unit 204 calculates that the set focal length f is 2, the set front lens number M ₁ may be 2, and the set rear lens number M ₂ may be 3. The calculating unit 204 calculates the difference between the number of the set front lens and the number of the initial front lens according to the initial number of front lenses and the number of the set front lenses. Similarly, the calculating unit 204 is based on the initial rear lens number and the setting. Set the number of lenses, calculate the difference between the number of rear lenses and the number of initial rear lenses, and use the two differences as the calibration signal.

The number of front lenses and/or the number of rear lenses are calibrated based on the calibration signal prior to starting normal operation of the air conditioner. The operation and maintenance personnel will add the front lens and the rear lens, as well as the initial front lens and the initial rear lens, to the corresponding positions of the indoor unit casing of the air conditioner, and the installation positions of the initial front lens and the initial rear lens respectively Close to the display unit and the projection background. Preferably, in the working state of the projection module 200, the mounting position of the plurality of front lenses 103 in the indoor unit casing of the air conditioner, and the mounting positions of the plurality of rear lenses 101, the mounting positions of the front lens and the rear lens The mounting positions are evenly distributed. Preferably, the number of pre-lens mounting positions is equal to the second range upper threshold, and the number of rear lens mounting positions is equal to the fourth range upper threshold.

The above functional unit in the projection module can be realized by the controller 105 for controlling the LED light source and the control module of the LCD display unit, or can be other programmable integration independent of the control LED light source and the LCD display unit. Chip implementation.

Through the above manner, the display effect is accurately calibrated before installation and use, and is not limited by the layout of the air-conditioned room, and the user does not need to manually adjust the focus, which can ensure the display effect well, and adopts the LCD display unit instead of the laser projection method, on the one hand, reduces The cost of the projection display, on the other hand, optimizes the projection display effect and is convenient for the user to use.

The invention also discloses a calibration method for an air conditioner, as shown in FIG. 4, comprising the following steps:

S101, collecting an external dimension of the display unit;

S102: Determine a display area setting size according to a distance between the air conditioner housing and the projection background, and calculate a set magnification according to the external size of the display unit and the display area setting size;

S103, calculating a set focal length according to the set magnification and the first distance, determining a numerical interval to which the set focal length belongs, and calling the set front projection number corresponding to the numerical interval according to the determination result and setting The number of lenses is set, and a calibration signal is generated according to the number of initial front lenses and the number of set front lenses and/or the number of initial rear lenses and the number of set rear lenses;

S104, calibrating the number of front lenses and/or the number of rear lenses according to the calibration signal before starting the normal operation of the air conditioner.

The calibration method of the above air conditioner can ensure that the display effect of the air conditioner using the LCD display unit is consistent and clear when used in an air-conditioned room of different environments, and the user does not need manual manual focusing when using, and has the advantages of being convenient for the user.

In the above embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional unit is stored in a storage medium, comprising a plurality of instructions for performing a part of the steps of the method according to various embodiments of the present invention with a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor. . The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of each functional module described above is exemplified. In practical applications, the above function assignment can be completed by different functional modules as needed, that is, the device is installed. The internal structure is divided into different functional modules to perform all or part of the functions described above. For the specific working process of the device described above, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A projector-type air conditioner, comprising an indoor unit housing, further comprising:

a projection module, the projection module comprising:

a storage unit, wherein the storage unit stores an initial number of front lenses, an initial number of rear lenses, and a first distance, wherein the first distance is a distance between an initial rear lens center and a projection background;

a collecting unit, wherein the collecting unit collects an outer dimension of the display unit;

An analysis unit, the analysis unit determines a display area setting size according to a distance between the air conditioner housing and the projection background, and calculates a set magnification according to the external size of the display unit and the display area setting size;

a calculating unit, the calculating unit calculates a set focal length according to the set magnification and the first distance; the analyzing unit determines a numerical interval to which the set focal length belongs, and is in the storage unit according to the determination result Calling the set number of front lenses corresponding to the numerical interval and setting the number of rear lenses, and setting the number of front lenses and the number of front lenses and/or the number of initial rear lenses according to the number of initial front lenses The number of fixed rear lenses generates a calibration signal;

The number of front lenses and/or the number of rear lenses are calibrated based on the calibration signal prior to starting normal operation of the air conditioner.
The projectionable air conditioner according to claim 1, wherein:

If the set focal length belongs to the first set interval, randomly selecting one of the set front lens numbers in the first range, and randomly selecting one of the set rear lens numbers in the third range;

If the set focal length belongs to the second set interval, randomly selecting one of the set front lens numbers in the second range, and randomly selecting a set rear lens number in the fourth range;

The upper thresholds of the first set interval and the second set interval are sequentially incremented, and the upper thresholds of the first range and the second range are sequentially incremented, and the upper thresholds of the third range and the fourth range are sequentially incremented. .
The projector according to claim 2, wherein the calibration signal is a difference between the number of set front lenses and the number of initial front lenses, and/or the set rear The difference between the number of lenses and the number of initial rear lenses.
A projectionable air conditioner according to claim 3, wherein:

Calculating the set focal length f includes the following steps:

Calculating a second distance u according to the set magnification factor K and the first distance v, where K=v/u;

The second distance u is a distance between the display unit and the center of the initial rear lens;

The set focal length f is calculated according to the first distance v and the second distance u, where 1/u+1/v=1/f.
A projectionable air conditioner according to claim 4, wherein:

Calculating the set focal length f further includes the following steps:

After the set focal length f is calculated, it is determined whether the second distance satisfies the following numerical relationship f<u<2f, and if satisfied, the numerical interval to which the set focal length belongs is further determined.
The projectable air conditioner according to claim 5, wherein the front lens is disposed between the light source and the display unit after calibration, and the rear lens is disposed at the display unit and the projection Between the backgrounds.
The projectable air conditioner according to claim 6, wherein a mirror is further disposed between the display unit and the projection background.
The projectable air conditioner according to claim 7, wherein the display unit is an LCD display unit.
The projectionable air conditioner according to claim 8, wherein the light source is an LED light source.
A method for calibrating an air conditioner, comprising the steps of:

Collecting the outer dimensions of the display unit;

Determining a display area setting size according to a distance between the air conditioner housing and the projection background, and calculating a set magnification according to the external size of the display unit and the display area setting size;

Calculating a set focal length according to the set magnification and the first distance, determining a numerical interval to which the set focal length belongs, and calling a set front projection number corresponding to the numerical interval according to the determination result and setting a rear lens Quantity, and generate a calibration signal based on the number of initial front lenses and the number of set front lenses and/or the number of initial rear lenses and the number of set rear lenses;

The number of front lenses and/or the number of rear lenses are calibrated based on the calibration signal prior to starting normal operation of the air conditioner.