CN113885605B

CN113885605B - Temperature control method, related device and storage medium

Info

Publication number: CN113885605B
Application number: CN202111162362.7A
Authority: CN
Inventors: 周强; 吕思成; 张聪; 胡震宇
Original assignee: Shenzhen Huole Science and Technology Development Co Ltd
Current assignee: Shenzhen Huole Science and Technology Development Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-10-04
Anticipated expiration: 2041-09-30
Also published as: CN113885605A

Abstract

The embodiment of the application discloses a temperature control method, a related device and a storage medium, wherein the method is applied to projection equipment, the projection equipment comprises an optical machine radiator and a lens radiator, and the method comprises the following steps: acquiring picture brightness data related to the projection equipment; determining a control mode matched with the projection equipment according to the picture brightness data; and respectively controlling the heat dissipation power of the optical machine radiator and the heat dissipation power of the lens radiator according to the control mode. Because this openly comes the switching control mode according to the change of picture brightness data, the condition of heat gathering can not appear, so solved among the prior art projection equipment just carry out focus adjustment after producing virtual focus, lead to the not good technical problem of user experience.

Description

Temperature control method, related device and storage medium

Technical Field

The present application relates to the field of projection, and in particular, to a temperature control method, a related apparatus, and a storage medium.

Background

At present, the front focus is generally adjusted by adjusting the number of motor steps in the market to realize a clear picture, and the rear focus is generally fixed. However, the hot focus leakage needs to adjust the back focus and the front focus simultaneously, no other better method exists at present, and the lens with ultra-short focus is complex and is particularly sensitive to deformation, and the deformation of the lens and the optical machine shell can only be reduced when the optical machine is designed. However, in the existing projection device, the lens is usually heated to generate offset deformation, and the focal length adjustment is performed after the virtual focus is generated, which causes inconvenience to the user in the using process.

Disclosure of Invention

The embodiment of the application provides a temperature control method, a related device and a storage medium, which can solve the technical problem that in the prior art, the temperature of a projector is too slow, so that the picture is blurred when the projector is started.

The embodiment of the application provides a temperature control method, a related device and a storage medium, which can solve the technical problem that in the prior art, the focal length adjustment is performed after virtual focus is generated by projection equipment, so that the user experience is poor.

The embodiment of the application provides a temperature control method, which is applied to projection equipment, wherein the projection equipment comprises an optical machine radiator and a lens radiator, and the method comprises the following steps:

acquiring picture brightness data related to the projection equipment;

determining a control mode matched with the projection equipment according to the picture brightness data;

and respectively controlling the heat dissipation power of the optical machine radiator and the heat dissipation power of the lens radiator according to the control mode.

Optionally, the determining, by the image brightness data, a control mode matched with the projection device according to the image brightness data includes:

and matching a corresponding control mode according to the gray value of the current moment and a preset gray threshold value.

Optionally, the matching a corresponding control mode according to the gray value of the current time and a predetermined gray threshold specifically includes:

if the gray value at the current moment is greater than a preset gray threshold and a first duration time exceeding a first time threshold is maintained, matching a first control mode;

and if the gray value at the current moment is smaller than a preset gray threshold and the second duration time exceeding a second time threshold is maintained, matching a second control mode.

Optionally, the determining, according to the picture brightness data, a control mode matched with the projection device specifically includes:

when the gray value at the current moment is greater than a preset gray threshold and is accumulated to exceed a first time threshold, matching a first control mode;

and when the gray value at the current moment is smaller than a preset gray threshold and is accumulated to exceed a second time threshold, matching a second control mode.

Optionally, the controlling the heat dissipation power of the optical machine radiator and the heat dissipation power of the lens radiator according to the control mode specifically includes:

if the control mode is the first control mode, controlling the heat dissipation power of the optical-mechanical radiator to reach a first optical-mechanical heat dissipation power, and controlling the heat dissipation power of the lens radiator to reach a first lens heat dissipation power;

if the control mode is the second control mode, controlling the heat dissipation power of the optical-mechanical radiator to reach a second optical-mechanical heat dissipation power, and controlling the heat dissipation power of the lens radiator to reach a second lens heat dissipation power;

the first optical machine heat dissipation power is smaller than the second optical machine heat dissipation power, and the first lens heat dissipation power is larger than the second lens heat dissipation power.

Optionally, if the control mode is the second control mode, controlling the heat dissipation power of the optical machine radiator to reach a second optical machine heat dissipation power, and controlling the heat dissipation power of the lens radiator to reach a second lens heat dissipation power specifically includes:

determining an optical machine power adjustment coefficient and a lens power adjustment coefficient according to the gray value of the projection equipment at the current moment and a preset gray threshold, wherein the optical machine power adjustment coefficient is larger than 1, and the lens power adjustment coefficient is smaller than 1;

controlling the heat dissipation power of the optical-mechanical radiator to reach the second optical-mechanical heat dissipation power, wherein the second optical-mechanical heat dissipation power is equal to the product of the first optical-mechanical heat dissipation power and the optical-mechanical power adjustment coefficient;

and controlling the heat dissipation power of the lens heat sink to reach the second lens heat dissipation power, wherein the second lens heat dissipation power is equal to the product of the first lens heat dissipation power and the lens power adjustment coefficient.

Optionally, the method further comprises:

responding to a starting instruction of the projection equipment, and acquiring the equipment temperature of the projection equipment;

determining a control mode matched with the projection equipment according to the equipment temperature;

and controlling the heat dissipation power of the projection equipment according to the control mode so as to enable the temperature of the equipment to reach a first preset temperature threshold value within preset time.

Optionally, the determining the control mode matched with the temperature of the device specifically includes:

the determining a control mode matched with the projection device according to the device temperature specifically includes:

if the equipment temperature is smaller than a second preset temperature threshold value, matching a third control mode;

and if the equipment temperature is greater than a second preset temperature threshold value, matching a fourth control mode.

Optionally, the controlling the heat dissipation power of the projection device according to the control mode to make the device temperature reach a first predetermined temperature threshold within a predetermined time specifically includes:

if the control mode is the third control mode, controlling the heat dissipation power to reach a third heat dissipation power so as to enable the temperature of the equipment to reach the first preset temperature threshold value within the preset time;

if the control mode is the fourth control mode, controlling the heat dissipation power to reach a fourth heat dissipation power so as to enable the temperature of the equipment to reach the first preset temperature threshold value within the preset time;

wherein the third heat dissipation power is less than the fourth heat dissipation power.

Optionally, after the matching of the third control mode if the device temperature is less than the second predetermined temperature threshold, the method further includes:

acquiring the equipment temperature at intervals of a first time interval;

if the equipment temperature is greater than a first preset temperature threshold value, switching to the fourth control mode to keep the equipment temperature at the first preset temperature threshold value;

and if the equipment temperature is less than a first preset temperature threshold value, maintaining the third control mode.

On the other hand, this application provides a temperature control device, is applied to projection equipment, projection equipment includes ray apparatus radiator and lens radiator, temperature control device includes:

an acquisition unit that acquires picture brightness data related to the projection apparatus;

the matching unit is used for determining a control mode matched with the projection equipment according to the picture brightness data;

and the control unit is used for respectively controlling the heat dissipation power of the optical machine radiator and the heat dissipation power of the lens radiator according to the control mode.

In another aspect, the present application further provides a projection device, where the computer device includes:

one or more processors;

a memory; and

one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the steps of the temperature control method.

In another aspect, the present application also provides a computer readable storage medium, on which a computer program is stored, the computer program being loaded by a processor to execute the steps in the temperature control method.

In the embodiment of the application, a control mode matched with the picture brightness data is determined according to the picture brightness data of the projection equipment and the projection equipment, and the heat dissipation power is controlled according to the control mode, so that the temperature in the projection equipment is kept balanced. When the image brightness is high, the projection equipment is in a white field state, projection light emitted by the projection optical machine is projected, heat of all parts of the projection equipment is distributed uniformly, and a first control mode which is relatively uniform is matched; when the picture luminance is lower, projection equipment is in the black field state, and the projection ray apparatus sends projection light this moment and is not thrown away, and the heat silts up in the projection ray apparatus in a large number, matches the second control mode this moment to strengthen the heat dissipation of projection ray apparatus, and weaken projection lens's heat dissipation, reach the equilibrium with the temperature of guaranteeing two places, and then guarantee that projection equipment does not appear hot virtual burnt. Because this disclosed technical scheme comes the switch control mode according to picture brightness change, the condition of heat gathering can not appear, so solved among the prior art projecting apparatus and produced just to carry out focus adjustment after virtual burnt, lead to the not good technical problem of user experience.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an environmental diagram of an implementation of the temperature control method provided in one embodiment.

FIG. 2 is a flow chart illustrating a method of temperature control according to an exemplary embodiment.

Fig. 3 is a flowchart illustrating a specific implementation of step S300 in the temperature control method according to the corresponding embodiment of fig. 2.

Fig. 4 is a flowchart illustrating a specific implementation of step S320 in the temperature control method according to the corresponding embodiment of fig. 3.

Fig. 5 is a flow chart illustrating another temperature control method according to a corresponding embodiment of fig. 2.

FIG. 6 is a block diagram illustrating a temperature control device according to an exemplary embodiment.

Fig. 7 schematically shows an example block diagram of an electronic device for implementing the temperature control method described above.

Fig. 8 schematically illustrates a computer-readable storage medium for implementing the above-described temperature control method.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In this application, where the context requires otherwise, the words "upper" and "lower" used in relation to the device in use or operation will generally refer to the upper and lower extremities of the device, particularly as oriented in the drawing figures; while "inner" and "outer" are with respect to the outline of the device.

The embodiment of the application provides a temperature control method, a related device and a storage medium. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a diagram of an implementation environment of a temperature control method according to an embodiment, as shown in fig. 1, the implementation environment includes a projection apparatus, which includes a projection engine 20, a projection lens 30, a controller 40, an engine heat sink 50, and a lens heat sink 60.

The light engine 20 provides a light source for the projection device, and may be a Digital Light Processing (DLP) light engine, a 3LCD light engine, or other various types of light engines. The projection lens 30 is disposed at one side of the projection optical machine 20 along the optical axis direction, and is used for projecting the projection light generated by the projection optical machine 20 to form a projection picture, which may be a long-focus lens, a medium-focus lens, a short-focus lens, or other various lenses. The optical engine radiator 50 is mounted on the projection optical engine 20, and is used for cooling the projection optical engine 20, and may be an active air-cooled radiator such as a fan, or an active liquid-cooled radiator such as a water-cooled head. The lens heat sink 60 is mounted on the projection lens 30, and is used for cooling and dissipating heat from the projection lens 30, and may be an active air-cooled heat sink such as a fan, or an active liquid-cooled heat sink such as a water-cooled head. The controller 40 is used to control the operation mode of the optical engine heat sink 50 and the lens heat sink 60, and thus the heat dissipation efficiency of the projection optical engine 20. In the using process, the controller 40 obtains the image brightness data related to the projection optical engine 20, and determines the control modes for the optical engine radiator 50 and the lens radiator 60 according to the image brightness data, wherein different control modes correspond to different heat dissipation powers, so as to ensure that the temperature of the projection device at each position is kept balanced.

It should be noted that the controller 40, the optical-mechanical heat sink 50, the lens heat sink 60, and the projection optical device 20 may be connected by wire or wireless or other communication connection methods, and the invention is not limited herein.

As shown in fig. 2, in an embodiment, a temperature control method is provided, which can be applied to the controller 40 described above, and specifically includes the following steps:

and step S100, acquiring picture brightness data related to the projection equipment.

In the embodiment of the disclosure, when the projection apparatus is started, the picture brightness data of the projection apparatus is obtained, so as to determine the control mode according to the picture brightness data, and control the heat dissipation power according to the control mode. The control mode is switched according to the change of the image brightness data, the control mode can be switched before the temperature rises due to the accumulation of heat in the projection light machine 20, and the mode switching can be performed when the projection light machine 20 is detected to be in a black field state where the heat is easily accumulated, so that the heat is effectively prevented from accumulating in the projection light machine 20, the equipment temperature in the projection light machine 20 can be kept in a relatively constant state, the temperature at the positions of the projection light machine 20 and the projection lens 30 is ensured to be balanced, and the projection equipment is further ensured not to generate hot virtual focus.

The image brightness data may include a gray value and an image brightness of the projection device at the current time, and a gray value and an image brightness of each frame of image of a video source currently played by the projection device. For example, the controller 40 obtains a gray value of the optical engine 20 during the use process, and determines control modes for the optical engine heat sink 50 and the lens heat sink 60 according to the gray value, wherein different control modes correspond to different heat dissipation powers, so as to ensure that the temperature of the projection device is kept balanced at various locations.

There are various ways to obtain the gray-level value of the projection device, for example, obtaining the pixel brightness value of each pixel of the picture, summing and calculating the average pixel brightness value, and using the average pixel brightness value as the gray-level value. Or the histogram of the pixel brightness values of the pixels of the picture can be counted, and the accumulation is performed according to the histogram from low to high until the number of the picture pixels is half, so that the brightness value of the median pixel can be obtained, and the brightness value of the median pixel is used as the gray value. If the picture signal is an RBG signal, the RGB signal may be converted into a YUV signal and then calculated, or an average R value, an average B value, and an average G value of the picture may be obtained, and an average pixel luminance value Y is obtained according to a formula Y =0.213r +0.715g +0.072b, and the average pixel luminance value is taken as a gray value.

And step S200, determining a control mode matched with the projection equipment according to the picture brightness data.

After the picture brightness data of the projection device is acquired, the control mode can be determined according to the picture brightness data.

When the image brightness data includes the gray-level value of the projection device at the current time, the specific steps of step S200 include:

When the gray value is higher, the projection equipment is in a white field state, the projection light emitted by the projector 20 is projected, the heat of each part of the projection equipment is uniformly distributed and is in a normal level, and the first control mode of normal balanced heat dissipation is matched; when the gray value is lower, the projection device is in a black field state, the projection light emitted by the projection light machine 20 is not projected, a large amount of heat is accumulated in the projection light machine, the projection lens does not absorb the heat when the projection light passes through, the temperature of the projection lens is reduced, the second control mode is matched at the moment to strengthen the heat dissipation of the projection light machine 20 and weaken the heat dissipation of the projection lens 30, so that the temperature of the two positions is balanced, and the projection device is prevented from generating hot virtual focus.

In the present embodiment, whether the projection apparatus is in the white field state or the black field state is determined according to whether the gradation value is smaller than a predetermined gradation threshold value. If the gray value is larger than the preset gray threshold value, the projection equipment is proved to be in a white field state, and at the moment, a first control mode capable of normally and uniformly radiating heat needs to be matched. If the gray value is smaller than the predetermined gray threshold, it is verified that the projection apparatus is in a black field state, and at this time, a second control mode for ensuring temperature balance needs to be matched, so that the temperatures of the projection light engine 20 and the projection lens 30 reach a balance.

The predetermined grayscale threshold is a boundary value for determining a black-and-white field state of the projection apparatus, and may be 40%, 45%, 50%, or 100, 110, 125, and the like, which is not limited herein.

In particular, in some embodiments, the step of matching the corresponding control mode according to the gray-scale value at the current time and the predetermined gray-scale threshold value may refer to the following embodiments. The following embodiments are detailed descriptions of matching the corresponding control mode according to the gray scale value and the predetermined gray scale threshold value at the current time in the temperature control method shown in the corresponding embodiment of fig. 2, and the matching the corresponding control mode according to the gray scale value and the predetermined gray scale threshold value at the current time in the temperature control method may include the following steps:

and if the gray value at the current moment is greater than a preset gray threshold and a first duration time exceeding a first time threshold is maintained, matching a first control mode.

In this embodiment, after detecting that the projection apparatus is in the white field state, it is further determined whether to switch to the first control mode by calculating the duration of the white field state of the projection apparatus. When the duration of the projection equipment in the white field state is short, the control mode is not switched, and the projection equipment is prevented from changing into the black field mode in a short time. If the control mode is immediately switched to the first control mode, the temperature in the projector 20 will rise too fast, and hot virtual focus will be caused. Meanwhile, the energy can be saved by reducing the times of switching the control modes.

In this embodiment, the specific method is to calculate a first duration each time after detecting that the projection apparatus is in the white field state, where the first duration is a duration that the projection apparatus is in the white field state, and the specific algorithm is to calculate a time interval from a time when the gray value detected for the last time is smaller than the predetermined gray threshold to a current time. After the first duration exceeds the first time threshold, the projection device is proved to be in the white field state for a longer time, and then the control mode is switched to the first control mode.

Similarly, after detecting that the projection apparatus is in the black field state, it is also determined whether to switch to the second control mode by calculating the duration of the black field state of the projection apparatus. When the duration of the projection equipment in the black field state is short, the control mode is not switched, and the projection equipment is prevented from being changed into the white field mode in a short time. If the control mode is switched to the second control mode, the heat in the projector 20 is dissipated too much, and the virtual focus is cooled. Meanwhile, energy can be saved by reducing the times of switching the control modes.

In this embodiment, the specific manner is to calculate a second duration each time after detecting that the projection apparatus is in the black field state, where the second duration is a duration that the projection apparatus is in the black field state, and the specific algorithm is to calculate a time interval from a time point when the gray value detected last time is greater than the predetermined gray threshold to a current time point. After the second duration exceeds a second time threshold, the projection device is proved to be in the black field state for a longer time, and then the control mode is switched to the second control mode.

Meanwhile, in other embodiments of the present disclosure, the duration of the black field state or the white field state of the projection device may be calculated according to the accumulated number of times.

In some embodiments, the specific implementation of matching the corresponding control mode according to the gray-scale value at the current time and the predetermined gray-scale threshold value may refer to the following embodiments. The following embodiments are detailed descriptions of matching the corresponding control mode according to the gray scale value and the predetermined gray scale threshold value at the current time in the temperature control method shown in the corresponding embodiment of fig. 2, and the matching the corresponding control mode according to the gray scale value and the predetermined gray scale threshold value at the current time in the temperature control method may include the following steps:

and when the gray value of the current moment is greater than a preset gray threshold and is accumulated to exceed a first time threshold, matching a first control mode.

In this embodiment, the specific method is to perform a time accumulation to obtain a first accumulated time after each detection that the projection apparatus is in the white field state; the higher the first cumulative number, the longer the duration of time the projection device is certified as being in the white field state. After the first accumulated number of times exceeds the first number threshold, the projection device is proved to be in a white field state for a long time, and then the control mode is switched to the first control mode.

And when the gray value of the current moment is smaller than a preset gray threshold and is accumulated to exceed a second time threshold, matching a second control mode.

In this embodiment, the specific method is to perform a time accumulation to obtain a second accumulated time after each detection that the projection apparatus is in the black field state; the higher the second cumulative number, the longer the duration of time that the projection device is certified as being in the black field state. And after the second accumulated number exceeds a second number threshold, the projection device is proved to be in the black field state for a longer time, and then the control mode is switched to the second control mode.

Step S300, respectively controlling the heat dissipation power of the optical machine radiator and the heat dissipation power of the lens radiator according to the control mode.

Under different control modes, the heat dissipation power of the optical-mechanical radiator 50 and the heat dissipation power of the lens radiator 60 are different, and when the control modes are matched with the normal balanced heat dissipation control mode, the heat dissipation power of the optical-mechanical radiator 50 and the heat dissipation power of the lens radiator 60 are kept in a normal state, so that the heat gathered in the projection optical-mechanical 20 and the projection lens 30 can be rapidly discharged, and the projection equipment is kept at normal temperature everywhere. When the projection light machine 20 is matched with the heat dissipation mode for the black field, it is proved that the heat accumulated in the current projection light machine 20 is too much, and the projection light machine 20 needs to be dissipated in time, at this time, the heat dissipation power of the light machine heat sink 50 needs to be increased to ensure that the heat is dissipated in time, and the heat dissipation power of the lens heat sink 60 needs to be decreased when the service life of the projection device, especially the elements in the projection light machine 20, is shortened due to too high temperature, so that the temperature of each part in the projection device is balanced, and the condition that the projection device is hot and virtual burnt is avoided.

Specifically, in some embodiments, a specific implementation of step S300 may be found in fig. 3. Fig. 3 is a detailed description of step S300 in the temperature control method according to the corresponding embodiment shown in fig. 2, wherein step S300 may include the following steps:

step S310, if the control mode is the first control mode, controlling the heat dissipation power of the optical-mechanical radiator to reach a first optical-mechanical heat dissipation power, and controlling the heat dissipation power of the lens radiator to reach a first lens heat dissipation power;

step S320, if the control mode is the second control mode, controlling the heat dissipation power of the optical-mechanical radiator to reach a second optical-mechanical heat dissipation power, and controlling the heat dissipation power of the lens radiator to reach a second lens heat dissipation power.

In this embodiment, when the control mode matches the first control mode of normal balanced heat dissipation, the heat dissipation power of the optical-mechanical heat sink 50 is controlled to reach the normal first optical-mechanical heat dissipation power, and the heat dissipation power of the lens heat sink 60 reaches the normal first lens heat dissipation power. The projection light machine 20 and the projection lens 30 can both obtain better heat dissipation, at the moment, the projection device is in a white field state, the heat of the projection light is transmitted to the projection light machine 20 and the projection lens 30 simultaneously and can be discharged in time, and the temperature in each part of the projection device is balanced and normal.

When the control mode matches the second control mode for the black field, the heat dissipation power of the optical-mechanical heat sink 50 is controlled to reach the second higher optical-mechanical heat dissipation power, and the heat dissipation power of the lens heat sink 60 reaches the second lower lens heat dissipation power. The projector 20 can obtain stronger heat dissipation, and the temperature of the projection lens 30 can be balanced with the projector 20. At this time, the projection apparatus is in a black field state, and the heat of the projection light is accumulated in the projector 20, so that the projector 20 needs to dissipate the heat more strongly to discharge the heat in time. The heat of the projection lens 30 is reduced, and the heat dissipation pressure is lower, so that the heat dissipation power can be reduced to save energy, and the temperature at each position in the projection device can quickly reach the equilibrium state again.

The first optical engine heat dissipation power is a normal heat dissipation power, the second optical engine heat dissipation power is a higher heat dissipation power, and the first optical engine heat dissipation power is smaller than the second optical engine heat dissipation power, so as to ensure that heat accumulated in the projector 20 can be discharged in time. For example, in some embodiments, the first optical engine heat dissipation power is 1.8W, 2.4W, 3W, and the second optical engine heat dissipation power is 2W, 2.8W, 3.2W.

The first lens heat dissipation power is normal heat dissipation power, the second lens heat dissipation power is lower heat dissipation power, and the first lens heat dissipation power is larger than the second lens heat dissipation power so as to save electric energy. For example, in some embodiments, the first lens heat dissipation power is 1.8W, 2W, 3W, and the second lens heat dissipation power is 0.8W, 1W, 1.2W.

In some embodiments of the present disclosure, the optical engine heat sink 50 and the lens heat sink 60 are both fans, and they rely on the heat of the projection optical engine 20 and the projection lens 30 from the heat dissipation air blown by the fans.

The first optical engine runs at a normal first optical engine wind speed under the heat dissipation power of the first optical engine; and under the heat dissipation power of the second optical machine, the second optical machine runs at a higher wind speed of the second optical machine. The first optical-mechanical wind speed is less than the second optical-mechanical wind speed. In some embodiments, the first fan wind speed may be 10CFM, 20CFM, 25CFM, and the second fan wind speed may be 15CFM, 25CFM, 30CFM, which is not limited herein.

Under the heat dissipation power of the first lens, the first lens operates at a normal first lens wind speed; and under the heat dissipation power of the second lens, the second lens operates at a lower second lens wind speed. The first lens wind speed is greater than the second lens wind speed. In some embodiments, the first lens wind speed may be 10CFM, 20CFM, 25CFM, and the second lens wind speed may be 2CFM, 5CFM, 7CFM, which is not limited herein.

Meanwhile, in other embodiments, the second optical engine heat dissipation power may be finely adjusted on the basis of the first optical engine heat dissipation power according to the adjustment coefficient, and the second lens heat dissipation power may be finely adjusted on the basis of the first lens heat dissipation power according to the adjustment coefficient. Meanwhile, the wind speed and the heat dissipation power of the fan are positively correlated, the wind speed of the second optical machine is finely adjusted on the basis of the wind speed of the first optical machine according to the adjustment coefficient, and the wind speed of the second lens is finely adjusted on the basis of the wind speed of the first lens according to the adjustment coefficient.

Specifically, in some embodiments, a specific implementation of step S320 may refer to fig. 4. Fig. 4 is a detailed description of step S320 in the temperature control method according to the corresponding embodiment shown in fig. 3, wherein step S320 may include the following steps:

step S321, determining an optical-mechanical power adjustment coefficient and a lens power adjustment coefficient according to the gray value of the projection device at the current time and a predetermined gray threshold, where the optical-mechanical power adjustment coefficient is greater than 1, and the lens power adjustment coefficient is less than 1.

Step S322 is performed to control the heat dissipation power of the optical-mechanical radiator to reach the second optical-mechanical heat dissipation power, where the second optical-mechanical heat dissipation power is equal to the product of the first optical-mechanical heat dissipation power and the optical-mechanical power adjustment coefficient.

Step S323, controlling the heat dissipation power of the lens heat sink to reach the second lens heat dissipation power, where the second lens heat dissipation power is equal to the product of the first lens heat dissipation power and the lens power adjustment coefficient.

In this embodiment, the second optical engine heat dissipation power is obtained by performing fine adjustment on the basis of the first optical engine heat dissipation power, and the second lens heat dissipation power is obtained by performing fine adjustment on the basis of the first lens heat dissipation power. The specific implementation way is that according to the current gray value of the projection equipment, corresponding adjusting coefficients are determined, namely an optical machine power adjusting coefficient and a lens power adjusting coefficient, then the optical machine power adjusting coefficient is multiplied on the basis of the first optical machine heat dissipation power to obtain the second optical machine heat dissipation power, and the lens power adjusting coefficient is multiplied on the basis of the first lens heat dissipation power to obtain the second lens heat dissipation power.

There are various ways of determining the corresponding optical-mechanical power adjustment coefficient and the lens power adjustment coefficient according to the current gray value of the projection device, and the ways may be calculated by a formula or obtained by querying a gray-coefficient relation table, which is not limited in this disclosure.

In an embodiment of the present disclosure, the predetermined gray threshold is 50%, the currently measured gray value is 49, and is smaller than the predetermined gray threshold, at this time, it is determined that the optical-mechanical variation coefficient corresponding to the gray threshold is 0.01, and the lens variation coefficient is-0.005, that is, it is determined that the optical-mechanical adjustment coefficient is 1+0.01=1.01, and the lens adjustment coefficient is 1-0.005=0.995.

If the first optical machine heat dissipation power and the first lens heat dissipation power are both 2W and the corresponding first optical machine wind speed and the second optical machine wind speed are both 10CFM, the second optical machine heat dissipation power obtained by multiplying the optical machine change coefficient is 2.02W, and the corresponding second optical machine wind speed is 10.1CFM; and multiplying the lens change coefficient to obtain the second lens heat dissipation power of 1.99W, wherein the corresponding second lens wind speed is 9.95CFM.

As shown in fig. 5, when the computer is turned on, the temperature control method may further include:

and S101, responding to a starting instruction of the projection equipment, and acquiring the equipment temperature of the projection equipment.

In the embodiment of the disclosure, when the projection device is started, the device temperature of the projection device is obtained, so that the control mode is determined according to the device temperature, and the heat dissipation power is controlled according to the control mode.

And S102, determining a control mode matched with the projection equipment according to the equipment temperature.

After acquiring the device temperature of the projection device, the control mode may be determined according to the device temperature.

When the temperature of the projection apparatus is low, it is proved that the projection apparatus is kept in the power-off state for a long time, and at this time, the projection apparatus needs to be rapidly heated up, so a rapid heating-up mode should be matched in this state, when the temperature of the apparatus is high, it is proved that the projection apparatus is just in the power-off state for a short time, and at this time, the projection light machine 20 is still in the heat engine state, and a large amount of heat is still accumulated in the projection light machine and is not discharged, and as long as the apparatus is normally started, the temperature of the apparatus can be rapidly raised to the heat balance temperature corresponding to a clear picture, so a normal heat dissipation mode should be matched in this state.

In particular, in some embodiments, the detailed implementation of step S102 may refer to the embodiments. The embodiment is a detailed description of step S102 in the temperature control method shown in the corresponding embodiment of fig. 5, in which step S102 may include the following steps:

if the device temperature is less than the second predetermined temperature threshold, the device temperature matches a third control mode.

If the device temperature is greater than the second predetermined temperature threshold, the device temperature matches the fourth control mode.

In this embodiment, whether the projection device is kept in the power-off state for a long time or is just in the power-off state for a short time is determined according to whether the device temperature is less than the second predetermined temperature threshold. If the device temperature is lower than the second preset temperature threshold, it is proved that the projection device is kept in the power-off state for a long time, and at this time, a third control mode which can quickly raise the device temperature needs to be matched. If the device temperature is greater than the second predetermined temperature threshold, it is proved that the projection device is just in the power-off state for a short time, and at this time, the fourth control mode for normal heat dissipation needs to be matched, so that the device temperature is raised depending on the residual temperature of the projection light machine 20.

The second predetermined temperature threshold is a basis for determining what state the projection device is in before the projector device is turned on, and may be 40 ℃, 46 ℃, 48 ℃, and the like, which is not limited in this disclosure.

Step S103, controlling the heat dissipation power of the projection equipment according to the control mode so as to enable the temperature of the equipment to reach a first preset temperature threshold value within preset time.

Under different control modes, the heat dissipation power of the active radiator is different, and when the active radiator is matched with the rapid heating mode, the heat dissipation power of the active radiator is not too high so as to ensure that the temperature of equipment can be rapidly increased; when the device is matched with the normal heat dissipation mode, it is proved that the temperature of the current device is high enough to timely dissipate heat of the optical projector 20, and at this time, the active heat sink should maintain normal heat dissipation power to ensure that heat is discharged in time, thereby avoiding the situation of hot virtual focus of the projection device, and avoiding the short life of the projection device, especially elements in the optical projector 20, due to the over-high temperature.

The active heat sink includes the optical-mechanical heat sink 50 and the lens heat sink 60.

In particular, in some embodiments, the detailed implementation of step S103 may refer to the examples. The embodiment is a detailed description of step S103 in the temperature control method according to the corresponding embodiment shown in fig. 5, in which step S103 may include the following steps:

and if the control mode is the third control mode, controlling the heat dissipation power to reach the third heat dissipation power so as to enable the temperature of the equipment to reach a first preset temperature threshold value within preset time according to the first rate.

And if the control mode is a fourth control mode, controlling the heat dissipation power to reach the fourth heat dissipation power so as to enable the temperature of the equipment to reach the first preset temperature threshold value within preset time according to the second rate.

And the fourth heat dissipation power is greater than the third heat dissipation power, and the first rate is greater than the second rate.

In this embodiment, when the control mode is matched to the third control mode that can rapidly increase the temperature of the apparatus, the heat dissipation power is controlled to reach the third lower heat dissipation power, at this time, the heat dissipation efficiency of the active heat sink to the projection engine 20 is lower, a large amount of heat is accumulated in the projection engine 20, and therefore the temperature of the apparatus reaches the first predetermined temperature threshold at the first faster rate within the predetermined time. When the control mode is matched with a fourth control mode for normal heat dissipation, the heat dissipation power is controlled to reach a normal fourth heat dissipation power, at this time, the heat dissipation efficiency of the active heat sink to the projection light engine 20 is high, the heat accumulated in the projection light engine 20 can be discharged in time, and meanwhile, the device temperature reaches a first preset temperature threshold value according to a normal second rate within a preset time by means of the waste heat in the projection light engine 20.

The first predetermined temperature threshold is slightly greater than the second predetermined temperature threshold, and is a lowest value of a thermal equilibrium temperature when the projection optical engine 20 projects a clear picture, and when the second predetermined temperature threshold is 40 ℃, 46 ℃ and 48 ℃, the first predetermined temperature threshold may be set to 42 ℃, 50 ℃ and 55 ℃, which is not limited in this disclosure.

The third heat dissipation power is a lower heat dissipation power, the fourth heat dissipation power is a normal heat dissipation power, and the third heat dissipation power is far lower than the fourth heat dissipation power, so as to ensure that the heat of the projection light machine 20 is accumulated in the projection light machine 20, and the temperature of the equipment is rapidly raised. For example, in some embodiments, the third heat dissipation power is 0.8W, 1W, 1.2W, and the fourth heat dissipation power is 1.8W, 2W, 3W.

In some real-time examples of the present disclosure, the active heat sink is a fan, and the active heat sink is configured to conduct heat generated by the projector 20 by means of heat dissipated by the fan, and operates at a third lower speed at a third heat dissipation power; at a fourth heat dissipation power, it is operated at a normal fourth wind speed. The third wind speed is less than the fourth wind speed. In some embodiments, the third wind speed may be 2CFM, 5CFM, 7CFM, and the fourth wind speed may correspond to 10CFM, 20CFM, 25CFM, which is not limited herein.

Meanwhile, in the third control mode, the temperature difference between the equipment temperature and the first preset temperature threshold when the projection equipment is started is larger, and meanwhile, the corresponding heat dissipation power is the lower third heat dissipation power, so that the rate of heating the projection equipment to the first preset temperature threshold is the faster first rate; in the fourth control mode, the temperature difference between the device temperature when the projection device is started and the first predetermined temperature threshold is smaller, and meanwhile, the corresponding heat dissipation power is the normal fourth heat dissipation power, so that the rate of heating the projection device to the first predetermined temperature threshold is the normal second rate, the first rate is greater than the second rate, but the time difference spent for heating the projection device to the first predetermined temperature threshold in the two modes is almost consistent and is within the predetermined time. The first rate is greater than the second rate, for example, in some embodiments, the first rate may be 4.4 ℃/min, 6 ℃/min, 5 ℃/min, the second rate may correspond to 0.4 ℃/min, 0.8 ℃/min, 1.2 ℃/min, the predetermined time may be 0.5min, 1min, 2min, etc., and the disclosure is not limited thereto. Meanwhile, the time taken for the two control modes to heat up to the first predetermined temperature threshold is not necessarily consistent, for example, in some embodiments, the predetermined time is 2min, the time taken for the third control mode to heat up to the first predetermined temperature threshold is 1min50s, and the time taken for the fourth control mode to heat up to the first predetermined temperature threshold is 1min56s.

Specifically, in some embodiments, after the controller 40 matches the control mode to the third control mode, the device temperature further needs to be monitored in real time, and an embodiment of the method is a further embodiment of the temperature control method shown in the embodiment corresponding to fig. 5, in the temperature control method, if the device temperature is less than the second predetermined temperature threshold, after the third control mode is matched, the method further includes:

and acquiring the temperature of the equipment at intervals of a first time interval.

After the controller 40 matches the control mode with the third control mode, the device temperature also needs to be monitored in real time to determine the time point when the device temperature rises to the first predetermined temperature threshold, and after the device temperature rises to the first predetermined temperature threshold, the projection light engine 20 needs to normally dissipate heat, so the control mode is no longer suitable for the third control mode which mainly aims at rapid temperature rise, and mode switching needs to be performed.

And if the equipment temperature is greater than a first preset temperature threshold value, switching to the fourth control mode to keep the equipment temperature at the first preset temperature threshold value.

After the temperature of the device is raised to the first predetermined temperature threshold, the optical projection engine 20 needs to dissipate heat normally, and the active heat sink should also increase the heat dissipation power to the heat dissipation power normally used for heat dissipation, so the control mode is no longer applicable to the third control mode mainly aiming at rapid temperature rise, and needs to be switched to the fourth control mode for normal heat dissipation. And if the control mode is a fourth control mode, controlling the heat dissipation power to reach a fourth heat dissipation power so as to keep the temperature of the equipment at the first preset temperature threshold. Under the fourth control mode, the heat dissipation power is the fourth heat dissipation power of normal heat dissipation, and active radiator is higher to the radiating efficiency of projection ray apparatus 20 this moment, and the heat that silts up in projection ray apparatus 20 can in time be discharged, and equipment temperature keeps about first predetermined temperature threshold, at this moment, can the clear picture of projection department.

If the temperature of the equipment is not increased to the first predetermined temperature threshold, the temperature of the equipment still needs to be rapidly increased to the first predetermined temperature threshold, and the control mode still keeps the third control mode.

Specifically, in some embodiments, after the device temperature rises to the first predetermined temperature threshold, since the power of the projection light engine 20 does not always remain constant due to the fluctuation of the operating state thereof, during the operation, the device temperature still needs to be identified, which is another embodiment of the temperature control method shown in the corresponding embodiment of fig. 6, in the temperature control method, if the device temperature is greater than the first predetermined temperature threshold, the fourth control mode is switched to, so that the device temperature remains after the first predetermined temperature threshold, the method further includes:

and acquiring the equipment temperature of the projection equipment at intervals of a second time interval.

If the equipment temperature is lower than the first preset temperature threshold value, the control mode is switched to a third control mode so as to enable the equipment temperature to rise to the first preset temperature threshold value.

If the equipment temperature is greater than the first preset temperature threshold and less than the third preset temperature threshold, the control mode continues to maintain the fourth control mode so as to maintain the equipment temperature at the first preset temperature threshold.

And if the equipment temperature is greater than the third preset temperature threshold, the control mode is switched to a fifth control mode so as to reduce the equipment temperature to the first preset temperature threshold.

When the temperature of the device rises to the first predetermined temperature threshold, the power of the projector engine 20 is not always constant due to the fluctuation of the operating state, so that the temperature of the device still needs to be identified during the operation.

When the projector 20 operates at a lower power, the active heat sink may completely dissipate heat in the projector 20 in the fourth control mode, and at this time, the device temperature may drop to a temperature lower than the first predetermined temperature threshold, which causes the projection device to generate a flare, and the projection image is no longer clear. At this time, it is necessary to switch the control mode to the third control mode of rapid temperature rise so as to raise the plant temperature again to the first predetermined temperature threshold.

When the projection light machine 20 operates at normal power, in the fourth control mode, the active heat sink can discharge the heat generated by the projection light machine 20 in time, and does not affect the heat accumulated in the projection light machine 20, and the device temperature is between the first predetermined temperature threshold and the third predetermined temperature threshold, so that the control mode only needs to keep the fourth control mode, and the device temperature is kept around the first predetermined temperature threshold.

When the projector 20 operates at a higher power, a situation that the active heat sink cannot timely discharge heat newly generated by the projector 20 in the fourth control mode may occur, and at this time, the device temperature may rise to a temperature higher than the third predetermined temperature threshold, which causes the projection device to generate a flare, and the projection image is no longer clear. At this time, the control mode needs to be switched to the fifth control mode of rapid temperature decrease so that the temperature of the equipment is increased to the first predetermined temperature threshold again. And if the control mode is the fifth control mode, controlling the heat dissipation power to reach the fourth heat dissipation power so as to reduce the temperature of the equipment to the first preset temperature threshold.

In the foregoing embodiment, the third heat dissipation power is a lower heat dissipation power, the fourth heat dissipation power is a normal heat dissipation power, and the third heat dissipation power is much lower than the fourth heat dissipation power. The fourth heat dissipation power is a higher heat dissipation power, and the fourth heat dissipation power is higher than the fourth heat dissipation power.

In some real-time examples of the present disclosure, the active heat sink is a fan, and the heat generated by the projector 20 is guided out by the heat dissipating wind blown by the fan, and the active heat sink operates at a lower speed at a third heat dissipating power; at a fourth heat dissipation power, it is operating at a normal fourth wind speed; at a fourth heat dissipation power, it is operated at a fourth, higher wind speed. The third wind speed is less than the fourth wind speed, which is less than the fifth wind speed. In some embodiments, the third wind speed may be 2CFM, 5CFM, 7CFM, the fourth wind speed may be 10CFM, 20CFM, 25CFM, and the fifth wind speed may be 15CFM, 25CFM, 30CFM, which is not limited herein.

Meanwhile, the third predetermined temperature threshold is the highest value of the heat balance temperature when the projector 20 projects a clear picture, and is greater than the first predetermined temperature threshold. When the second predetermined temperature threshold is 40 ℃, 46 ℃ or 48 ℃, the first predetermined temperature threshold may be set to 42 ℃, 50 ℃ or 55 ℃ respectively, and the third predetermined temperature threshold may be set to 50 ℃, 60 ℃ or 68 ℃ respectively, which is not limited herein.

As shown in fig. 6, in an embodiment, a temperature control device is provided, which may be integrated in the controller 40, and specifically may include an obtaining unit 410, a matching unit 420, and a control unit 430. The obtaining unit 410 is configured to obtain picture brightness data related to the projection apparatus. The matching unit 420 is configured to determine a control mode matching the projection device according to the picture brightness data. The control unit 430 is configured to control the heat dissipation power of the optical-mechanical radiator and the heat dissipation power of the lens radiator according to the control mode.

The implementation process of the functions and actions of each module in the device is specifically described in the implementation process of the corresponding step in the temperature control method, and is not described herein again.

It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.

Moreover, although the steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, and may also be implemented by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, an electronic device capable of implementing the above method is also provided.

As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method or program product. Accordingly, various aspects of the present invention may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.

An electronic device 500 according to this embodiment of the invention is described below with reference to fig. 7. The electronic device 500 shown in fig. 7 is only an example and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.

As shown in fig. 7, the electronic device 500 is in the form of a general purpose computing device. The components of the electronic device 500 may include, but are not limited to: the at least one processing unit 510, the at least one memory unit 520, and a bus 530 that couples various system components including the memory unit 520 and the processing unit 510.

Wherein the storage unit stores program code that is executable by the processing unit 510 to cause the processing unit 510 to perform steps according to various exemplary embodiments of the present invention as described in the above section "exemplary methods" of the present specification. For example, the processing unit 510 may execute step S100 shown in fig. 2 to acquire picture brightness data related to the projection device. And S200, determining a control mode matched with the projection equipment according to the picture brightness data. Step S300, respectively controlling the heat dissipation power of the optical machine radiator and the heat dissipation power of the lens radiator according to the control mode. The memory unit 520 may include a readable medium in the form of a volatile memory unit, such as a random access memory unit (RAM) 5201 and/or a cache memory unit 5202, and may further include a read only memory unit (ROM) 5203.

Storage unit 520 may also include a program/utility 5204 having a set (at least one) of program modules 5205, such program modules 5205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.

Bus 530 may be one or more of any of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 500 may also communicate with one or more external devices 700 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 500, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 500 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 550. Also, the electronic device 500 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) via the network adapter 560. As shown, the network adapter 560 communicates with the other modules of the electronic device 500 over the bus 530. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 500, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, to name a few.

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, and may also be implemented by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, there is also provided a computer readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, aspects of the invention may also be implemented in the form of a program product comprising program code means for causing a terminal device to carry out the steps according to various exemplary embodiments of the invention described in the above section "exemplary methods" of the present description, when said program product is run on the terminal device.

Referring to fig. 8, a program product 600 for implementing the above method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this respect, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In situations involving remote computing devices, the remote computing devices may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to external computing devices (e.g., through the internet using an internet service provider).

Furthermore, the above-described figures are merely schematic illustrations of processes involved in methods according to exemplary embodiments of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed, for example, synchronously or asynchronously in multiple modules. The display device and the display panel thereof provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are explained herein by applying specific examples, and the description of the embodiments above is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A temperature control method is applied to projection equipment, the projection equipment comprises an optical machine radiator and a lens radiator, and the method is characterized by comprising the following steps:

acquiring picture brightness data related to the projection equipment;

determining a control mode matched with the projection equipment according to the picture brightness data, wherein the control mode comprises a first control mode corresponding to a white field and a second control mode corresponding to a black field;

the first optical-mechanical heat dissipation power is smaller than the second optical-mechanical heat dissipation power, and the first lens heat dissipation power is larger than the second lens heat dissipation power.

2. The method as claimed in claim 1, wherein the image brightness data includes a gray-level value of the projection device at the current time, and the determining the first control mode or the second control mode matching with the projection device according to the image brightness data specifically includes:

and matching the first control mode or the second control mode according to the gray value of the current moment and a preset gray threshold.

3. The method according to claim 2, wherein the matching of the corresponding control mode according to the gray-level value at the current time and a predetermined gray-level threshold specifically comprises:

if the gray value at the current moment is larger than the preset gray threshold and a first duration time exceeding a first time threshold is maintained, matching a first control mode;

and if the gray value at the current moment is smaller than the preset gray threshold and the second duration time exceeding a second time threshold is maintained, matching a second control mode.

4. The method as claimed in claim 2, wherein the determining a control mode matching the projection device according to the picture brightness data specifically comprises:

when the gray value at the current moment is greater than the preset gray threshold and is accumulated to exceed a first time threshold, matching a first control mode;

and when the gray value of the current moment is smaller than the preset gray threshold and is accumulated to exceed a second time threshold, matching a second control mode.

5. The method according to claim 1, wherein if the control mode is the second control mode, controlling the heat dissipation power of the optical-mechanical heat sink to reach a second optical-mechanical heat dissipation power, and controlling the heat dissipation power of the lens heat sink to reach a second lens heat dissipation power, specifically comprising:

determining an optical machine power adjustment coefficient and a lens power adjustment coefficient according to the gray value of the current moment and the preset gray threshold, wherein the optical machine power adjustment coefficient is larger than 1, and the lens power adjustment coefficient is smaller than 1;

controlling the heat dissipation power of the optical machine radiator to reach the second optical machine heat dissipation power, wherein the second optical machine heat dissipation power is equal to the product of the first optical machine heat dissipation power and the optical machine power adjustment coefficient;

6. The method of temperature control according to claim 1, further comprising:

responding to a starting-up instruction of the projection equipment, and acquiring equipment temperature of the projection equipment;

7. The method as claimed in claim 6, wherein the determining the control mode matching the projection device according to the device temperature specifically comprises:

and if the equipment temperature is greater than the second preset temperature threshold value, matching a fourth control mode.

8. The method as claimed in claim 7, wherein the controlling the heat dissipation power of the projection device according to the control mode to make the device temperature reach a first predetermined temperature threshold within a predetermined time includes:

if the control mode is the fourth control mode, controlling the heat dissipation power to reach fourth heat dissipation power so as to enable the temperature of the equipment to reach the first preset temperature threshold value within the preset time;

9. The method of claim 7 or 8, wherein after said matching a third control mode if said device temperature is less than a second predetermined temperature threshold, said method further comprises:

acquiring the temperature of the equipment at intervals of a first time interval;

and if the equipment temperature is less than the first preset temperature threshold value, maintaining the third control mode.

10. The utility model provides a temperature control device which characterized in that is applied to projection equipment, projection equipment includes ray apparatus radiator and lens radiator, temperature control device includes:

an acquisition unit, configured to acquire picture brightness data related to the projection apparatus;

the matching unit is used for determining a control mode matched with the projection equipment according to the picture brightness data, and the control mode comprises a first control mode corresponding to a white field and a second control mode corresponding to a black field;

the control unit is used for controlling the heat dissipation power of the optical-mechanical radiator to reach a first optical-mechanical heat dissipation power and controlling the heat dissipation power of the lens radiator to reach a first lens heat dissipation power if the control mode is the first control mode; if the control mode is the second control mode, controlling the heat dissipation power of the optical-mechanical radiator to reach a second optical-mechanical heat dissipation power, and controlling the heat dissipation power of the lens radiator to reach a second lens heat dissipation power; the first optical-mechanical heat dissipation power is smaller than the second optical-mechanical heat dissipation power, and the first lens heat dissipation power is larger than the second lens heat dissipation power.

11. A projection device, characterized in that the projection device comprises:

one or more processors;

a memory; and

one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the temperature control method of any of claims 1-9.

12. A computer-readable storage medium, having stored thereon a computer program which is loaded by a processor for performing the steps of the temperature control method according to any one of claims 1 to 9.