Control device, method and projector equipment

Abstract

The present invention relates to a control device, a control method and a projector device. The projector device includes a light source and a light engine, wherein the control device includes a first light intensity sensor, a first controller and a second controller, wherein the first light intensity sensor is arranged at the output light of the light engine, and is used to detect the first light intensity of the light outputted by the light engine; the first controller is respectively connected to the first light intensity sensor and the light engine, and is used to control the light engine to adjust the first light intensity according to the first light intensity and a preset target light intensity; the second controller is respectively connected to the first controller and the light source, and is used to adjust the second light intensity of the output light of the light source if the first light intensity is adjusted to a first light intensity threshold and the adjusted first light intensity is less than the target light intensity, so as to increase the first light intensity of the light outputted by the light engine. In this way, by detecting the light intensity of the light outputted by the light engine and coordinating the output lights of the light engine and the light source, the brightness adjustment accuracy of the projector is improved.

Description

Technical Field

[0001] The present invention relates to the field of radio frequency identification technology, and in particular to a control device, method and projector equipment. Background Art

[0002] A projector can be used to display still or moving images and typically consists of a light engine and a light source. The light source houses multiple RGB laser diodes, each emitting a specific intensity based on a preset color ratio. Optical components within the light source combine the RGB lasers, then emit a white beam to the light engine, which uses this beam as a light source to generate the desired image.

[0003] When a projector is used for projection, the brightness of the projection content needs to be adjusted. However, due to environmental factors, when the brightness of the projector is adjusted according to the calibrated brightness level, there may be a deviation between the actual brightness and the required brightness. Therefore, there is an urgent need for a device that can improve the accuracy of projector brightness adjustment. Summary of the Invention

[0004] Based on this, it is necessary to provide a control device, method and projector equipment that can improve the accuracy of projector brightness adjustment.

[0005] A control device is applied to a projector device, wherein the projector device includes a light source and a light engine, including:

[0006] A first light intensity sensor is provided at the light output of the light engine, and is used to detect a first light intensity of the light output from the light engine;

[0007] a first controller, connected to the first light intensity sensor and the light engine, respectively, for controlling the light engine to adjust the first light intensity according to the first light intensity and a preset target light intensity;

[0008] a second controller connected to the first controller and the light source, respectively, for adjusting the second light intensity of the light emitted by the light source to increase the first light intensity of the light emitted by the light engine if the first light intensity is adjusted to a first light intensity threshold and the adjusted first light intensity is less than the target light intensity.

[0009] In one embodiment, the control device further comprises:

[0010] a second light intensity sensor, disposed at the exit light of the light source, for detecting a second light intensity of the exit light of the light source;

[0011] The second controller is also connected to the second light intensity sensor and is used to control the light source to reduce the second light intensity if the second light intensity is adjusted to a second light intensity threshold and the first light intensity is less than the target light intensity.

[0012] In one embodiment,

[0013] The second light intensity sensor is further configured to detect RGB values ​​of the light emitted by the light source, and the second controller is further configured to adjust the light emitted by the light source according to the RGB values ​​and the second light intensity if the first light intensity is equal to the target light intensity;

[0014] The second controller is further configured to calculate an RGB ratio based on the RGB values, and if the RGB ratio exceeds a preset range, adjust the RGB value of the output light of the light source based on the second light intensity.

[0015] In one embodiment, the control device further comprises:

[0016] The water cooler comprises a water cooling plate, which is arranged on a side of the lamp bead plate of the light source away from the lamp beads, and is used to cool the lamp bead plate.

[0017] In one embodiment, the control device further comprises:

[0018] A temperature acquisition module, used to acquire the temperature of the lamp bead board in the light source;

[0019] The first controller is also connected to the temperature acquisition module and the water cooler respectively, and is used to control the circulating water flow rate of the water cooler according to the temperature of the lamp bead board.

[0020] In one embodiment, the temperature acquisition module includes a plurality of temperature sensors, each of which is respectively arranged at the light output of the light source, the base of the light source, or the water-cooling plate.

[0021] In one embodiment, the apparatus further comprises:

[0022] A current detection module, used to detect the driving current of each lamp bead of the light source;

[0023] The first controller is connected to the current detection module and the light source respectively, and is used to control the spare lamp beads of the abnormal lamp beads to light up or reduce the light intensity of the lamp beads with different colors from the abnormal lamp beads, wherein the abnormal lamp beads are lamp beads with abnormal driving current.

[0024] In one embodiment, the second controller is further configured to:

[0025] Set the light intensity adjustment step;

[0026] controlling the light source to increase the second light intensity according to the light intensity adjustment step;

[0027] The first controller is further configured to control the light engine to reduce the first light intensity if the first light intensity is greater than the target light intensity.

[0028] A control method is applied to a projector device, wherein the projector device includes a light source and a light engine, and the control method includes:

[0029] detecting a first light intensity of light emitted by the light engine;

[0030] controlling the light engine to adjust the first light intensity according to the first light intensity and a preset target light intensity;

[0031] If the first light intensity is adjusted to a first light intensity threshold and the adjusted first light intensity is less than the target light intensity, the second light intensity of the light emitted by the light source is adjusted to increase the first light intensity of the light emitted by the light engine.

[0032] A projector device, comprising:

[0033] Projector device; and

[0034] A control device as described in any of the above.

[0035] The above-mentioned control device is applied to a projector device, which includes a light source and a light engine. The control device includes a first light intensity sensor, a first controller, and a second controller, wherein the first light intensity sensor is arranged at the output light of the light engine, and is used to detect the first light intensity of the light output from the light engine; the first controller is respectively connected to the first light intensity sensor and the light engine, and is used to control the light engine to adjust the first light intensity according to the first light intensity and a preset target light intensity; the second controller is respectively connected to the first controller and the light source, and is used to adjust the second light intensity of the output light of the light source if the first light intensity is adjusted to the first light intensity threshold and the adjusted first light intensity is less than the target light intensity, so as to increase the first light intensity of the output light of the light engine. In this way, by detecting the light intensity of the output light of the light engine and coordinating the output light of the light engine and the light source, the accuracy of the brightness adjustment of the projector is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1is a structural block diagram of a control device according to an embodiment;

[0038] Figure 2 is a structural block diagram of a control device according to another embodiment;

[0039] Figure 3 is a structural block diagram of a control device according to another embodiment;

[0040] Figure 4 is a structural block diagram of a control device according to another embodiment;

[0041] Figure 5 is a structural block diagram of a control device according to another embodiment;

[0042] Figure 6 FIG. 4 is a flow chart of a control method according to an embodiment.

[0043] Component number description:

[0044] Light engine: 100; light source: 200; first light intensity sensor: 101; first controller: 102; second controller: 103; second light intensity sensor: 104; temperature acquisition module: 105; water cooler: 106; current detection module: 107 DETAILED DESCRIPTION

[0045] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0047] It will be understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor without departing from the scope of this application. The first resistor and the second resistor are both resistors, but they are not the same resistor.

[0048] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if there is transmission of electrical signals or data between the connected circuits, modules, units, etc.

[0049] As used herein, the singular forms "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include," "comprising," "having," and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Furthermore, the term "and / or" as used in this specification includes any and all combinations of the relevant listed items.

[0050] Figure 1 FIG. 1 is a structural block diagram of a control device according to an embodiment of the present invention. Figure 1 As shown, the control device is applied to a projector device, which includes a light source 200 and a light engine 100. The control device includes a first light intensity sensor 101, a first controller 102 and a second controller 103, wherein the first light intensity sensor 101 is arranged at the output light of the light engine 100, and is used to detect the first light intensity of the light output from the light engine 100; the first controller 102 is connected to the first light intensity sensor 101 and the light engine 100, respectively, and is used to control the light engine 100 to adjust the first light intensity according to the first light intensity and a preset target light intensity; the second controller 103 is connected to the first controller 102 and the light source 200, respectively, and is used to adjust the second light intensity of the output light of the light source 200 if the first light intensity is adjusted to a first light intensity threshold and the adjusted first light intensity is less than the target light intensity, so as to increase the first light intensity of the light output from the light engine 100.

[0051] It will be understood that the light emitted by the light source 200 presents a specific image after being processed by the light engine 100, and the intensity of the light emitted by the light engine 100 can be directly controlled by the first controller 102. To ensure that the image presented by the light engine 100 reaches the target brightness, it is necessary to detect whether the intensity of the light emitted by the light engine 100 reaches the target intensity, that is, whether the first light intensity reaches the target intensity. The target brightness corresponds to the target intensity. If the first light intensity exceeds the target intensity, the first controller 102 controls the light engine 100 to reduce the first light intensity. If the first light intensity is less than the target intensity, the first controller 102 controls the light engine 100 to increase the first light intensity. If the first light intensity is increased to a preset first intensity threshold but is still less than the target intensity, the second controller 103 can adjust the second intensity of the light emitted by the light source 200, thereby increasing the first intensity. The first light intensity threshold may be the intensity value of the light emitted by the light source 200 when the light engine 100 is operating normally, such as 80% of the intensity value of the light emitted by the light source 200, or may be the maximum intensity value of the light emitted by the light source 200 that can be used by the light engine 100, such as 100% of the intensity value of the light emitted by the light source 200.

[0052] Since the light engine 100 and the light source 200 are each provided with a corresponding controller for control, the problems of heavy workload and high heat generation caused by a single controller can be avoided.

[0053] In this embodiment of the present invention, a first light intensity sensor 101 is positioned at the light output of the light engine 100 to detect a first light intensity of the light output from the light engine 100. A first controller 102 then controls the light engine 100 to adjust the first light intensity based on the first light intensity and a preset target light intensity. If the first light intensity is adjusted to a first light intensity threshold and the adjusted first light intensity is less than the target light intensity, a second controller 103 adjusts the second light intensity of the light output from the light source 200, thereby increasing the first light intensity of the light output from the light engine 100. By detecting the light intensity of the light output from the light engine 100 and collaboratively adjusting the light outputs of the light engine 100 and the light source 200, the accuracy of brightness adjustment in the projector device is improved. Furthermore, compared to directly adjusting the light intensity of the light engine 100, which may fail to achieve the desired brightness, or directly adjusting the light intensity of the light source 200, which may waste electrical energy, this embodiment collaboratively adjusts the light outputs of the light engine 100 and the light source 200, enabling the projector to meet normal operating requirements and optimizing energy utilization.

[0054] In one embodiment, the control device further includes a second light intensity sensor 104, such as Figure 2 As shown, the second light intensity sensor 104 is arranged at the output light of the light source 200, and is used to detect the second light intensity of the output light of the light source 200; the second controller 103 is also connected to the second light intensity sensor 104, and is used to control the light source 200 to reduce the second light intensity if the second light intensity is adjusted to the second light intensity threshold and the first light intensity is less than the target light intensity.

[0055] The second light intensity threshold may be the maximum light intensity of the light emitted by the light source 200. It is understood that when the second light intensity of the light emitted by the light source 200 is adjusted to increase the first light intensity of the light emitted by the light engine 100, the second light intensity may be increased to bring the first light intensity to the target light intensity. If the second light intensity is increased to the second light intensity threshold, it cannot be increased any further. Therefore, to ensure stable operation of the projector device, the second controller 103 may control the light source 200 to reduce the second light intensity.

[0056] In one embodiment, the second light intensity sensor 104 is further used to detect the RGB value of the light emitted by the light source 200 , and the second controller 103 is further used to adjust the light emitted by the light source 200 according to the RGB value and the second light intensity if the first light intensity is equal to the target light intensity.

[0057] It is understood that the light source 200 may include a red laser tube, a green laser tube, and a blue laser tube. Usually, the color light emitted by each laser tube meets a specific light intensity ratio, so that the combined light is white light. After adjusting the output light of the light source 200, the light intensity ratio of the color light emitted by each laser tube will also change. Therefore, when the first light intensity is adjusted to the target light intensity, it is necessary to detect the RGB value of the light emitted by the light source 200 at this time. The RGB value includes the light intensity of the three colors of red, green, and blue. If the RGB value does not meet the ratio requirement, it is necessary to adjust the output light of the light source 200. Since the light intensity of the light emitted by the light source 200 is equal to the sum of the RGB values, in order to meet the light intensity requirement of the light emitted by the light engine 100, when adjusting the output light of the light source 200, it is necessary to ensure that the sum of the RGB values ​​is equal to the second light intensity.

[0058] In one embodiment, the second controller 103 is further configured to calculate an RGB ratio according to the RGB values, and if the RGB ratio exceeds a preset range, adjust the RGB value of the light emitted by the light source 200 according to the second light intensity.

[0059] Specifically, after detecting the sum of the RGB values ​​of the light emitted by the light source 200, the RGB ratio can be calculated based on the RGB values. When the calculated RGB ratio is within the preset range, it means that the light emitted by the current light source 200 meets the white light requirement and there is no need to adjust the light emitted by the light source 200. If it exceeds the preset range, it means that the light emitted by the current light source 200 does not meet the white light requirement. At this time, under the premise that the sum of the RGB values ​​is equal to the second light intensity, the RGB value of the light emitted by the light source 200 is adjusted so that the adjusted RGB value of the light emitted is within the preset range. In this way, the light emitted by the light source 200 can meet the white balance requirement without affecting the light intensity of the light emitted by the light engine 100.

[0060] In one embodiment, the control device further includes a water cooler 106 , which includes a water cooling plate. The water cooling plate is arranged on a side of the lamp bead board of the light source 200 away from the lamp beads. The water cooler 106 is used to cool the lamp bead board.

[0061] Specifically, the lamp beads are laser tubes, and each laser tube is arranged on a circuit board to form a lamp bead board. The laser tubes will generate a lot of heat when working. Therefore, a water cooler 106 can be set outside the projector, and the water cooling plate of the water cooler 106 can be set on the side of the lamp bead board where the lamp beads are not set, so as to cool the lamp bead board.

[0062] It is understandable that temperature changes will cause fluctuations in the output light of the laser tube. Therefore, by setting up a water cooler 106 and using the water cooling plate of the water cooler 106 to cool the lamp bead board, the stability of the output light of the light source 200 is improved, which ultimately helps to improve the accuracy of the light engine 100 and the light source 200 in adjusting the brightness of the projector.

[0063] In one embodiment, the control device further includes a temperature acquisition module 105, such as Figure 3 As shown, the temperature acquisition module 105 is used to collect the temperature of the lamp bead board in the light source 200; the first controller 102 is also connected to the temperature acquisition module 105 and the water cooler 106 respectively, and is used to control the circulating water flow rate of the water cooler 106 according to the temperature of the lamp bead board.

[0064] Specifically, the water chiller 106 removes heat from the LED board by circulating water through the water cooling plate. The temperature acquisition module 105 collects LED board temperature data and transmits it to the first controller 102. The first controller 102 controls the circulating water flow rate of the water chiller 106 based on the LED board temperature. For example, when the LED board temperature is high, the circulating water flow rate can be increased to accelerate heat dissipation; when the LED board temperature is low, the circulating water flow rate can be reduced to reduce the energy consumption of the water chiller 106. In one embodiment, the LED board temperature can be mapped to the circulating water flow rate. The water chiller 106 is controlled to operate at a corresponding flow rate for different LED board temperatures, thereby maintaining the projector operating within a normal temperature range.

[0065] In one embodiment, a second controller 103 or a separate temperature controller may be provided to connect with the temperature acquisition module 105 , so as to control the circulating water flow rate of the water chiller 106 according to the temperature of the lamp bead board.

[0066] In one embodiment, the temperature acquisition module 105 may include a plurality of temperature sensors, each of which is respectively disposed at the light output of the light source 200 , the base of the light source 200 , or a water-cooled plate.

[0067] It is understandable that due to space and volume limitations, wiring on the lamp bead board is difficult. Instead of directly placing a temperature sensor on the lamp bead board to collect the lamp bead board temperature, a sensor can be placed near the lamp bead board, and the temperature near the lamp bead board can be used to characterize the lamp bead board temperature. Specifically, multiple temperature sensors can be placed near the lamp bead board to improve the accuracy of temperature measurement. Specifically, multiple temperature sensors can collect multiple temperature data, and the temperature data with the largest value can be used as the lamp bead board temperature. When the lamp bead board temperature reaches the temperature threshold, it can be determined that the lamp bead board temperature is too high.

[0068] It should be noted that the temperature sensor can be set at any location near the lamp bead board and convenient for wiring, and is not limited to the above locations.

[0069] In one embodiment, the control device further includes a current detection module 107, such as Figure 4As shown, the current detection module 107 is used to detect the driving current of each lamp bead of the light source 200; the first controller 102 is connected to the current detection module 107 and the light source 200 respectively, and is used to control the spare lamp beads of the abnormal lamp beads to light up or reduce the light intensity of the lamp beads with different colors from the abnormal lamp beads, where the abnormal lamp beads are lamp beads with abnormal driving current.

[0070] Specifically, an abnormal lamp bead may be a lamp bead whose driving current is less than the current threshold. It is understandable that there are usually multiple lamp beads of different colors on a lamp bead board, and the intensity of light emitted by lamp beads of different colors is different, so the number of lamp beads of different colors may be different, for example, there are 16 red beads, 8 green beads, and 6 blue beads each. Generally, the number can be adjusted according to actual needs. As a rule of thumb, the number of red lights is greater than the number of green lights, and the number of green lights is greater than the number of blue lights. Abnormal lamp beads can be determined by detecting the current of lamp beads of various colors. When an abnormal lamp bead exists, if the abnormal lamp bead is provided with a spare lamp bead, the spare lamp bead can be controlled to light up. If there is no spare lamp bead or the number of abnormal lamp beads exceeds the spare lamp bead, the light intensity of lamp beads of other colors can be reduced. Specifically, in one embodiment, if one of the red lamp beads is abnormally off, the current of the lamp beads of other colors will be reduced first, thereby reducing the light intensity of the lamp beads of other colors. If the RGB color ratio still cannot be met, a green lamp bead can be turned off and the current can be adjusted. If the RGB color ratio still cannot be met, a blue lamp bead can be turned off as a last resort.

[0071] In one embodiment, the second controller 103 is further configured to set a light intensity adjustment step and control the light source 200 to increase the second light intensity according to the light intensity adjustment step. The first controller 102 is further configured to control the light engine 100 to reduce the first light intensity if the first light intensity is greater than the target light intensity.

[0072] Specifically, when the first light intensity is adjusted to the first light intensity threshold, and the adjusted first light intensity is less than the target light intensity, the second light intensity can be gradually increased with a preset light intensity adjustment step, so that the first light intensity gradually approaches the target light intensity. In one embodiment, after each adjustment of the second light intensity with a preset light intensity adjustment step, the second light intensity sensor 104 can also detect the RGB value of the light emitted by the light source 200, and then adjust the RGB value of the light emitted by the light source 200 according to a preset RGB ratio. In this way, by setting the light intensity adjustment step to adjust the second light intensity, the first light intensity is more easily adjusted to the target light intensity, and by adjusting the RGB value after each light intensity adjustment, the RGB value correction amount each time is smaller, and the correction difficulty is lower. Among them, the light intensity adjustment step can be set to a specific proportional value of the second light intensity, for example, it can be 2% of the second light intensity.

[0073] In one embodiment, the first controller 102 is further configured to control the light engine 100 to reduce the first light intensity if the first light intensity is greater than the target light intensity.

[0074] It is understood that when the second light intensity is adjusted with the light intensity adjustment step, if the first light intensity is adjusted to a value greater than the target light intensity in one round of adjustment, the light engine 100 can be controlled to perform fine adjustment to reduce the first light intensity to reach the target light intensity.

[0075] In one embodiment, the control device may further include an input module, such as Figure 5 As shown, the input module is used to input user instructions, which include target brightness; the first controller 102 is also connected to the input module, and is used to obtain the target light intensity according to the user instructions.

[0076] It can be understood that the input module can be a human-computer interaction module, and the user can input user instructions through the human-computer interaction module. The user instructions include target brightness, and the target light intensity can be obtained according to the target brightness.

[0077] In one embodiment, the user instruction may further include a water chiller 106 control instruction, which is used to instruct to turn on / off the water chiller 106 or to instruct the circulating water flow rate of the water chiller 106 .

[0078] In one embodiment, the control device may further include a storage module connected to the first controller 102 and the second controller 103 respectively, for storing target brightness, target intensity, RGB ratio, first light intensity threshold and second light intensity threshold, etc.

[0079] An embodiment of the present invention further provides a control method applied to a projector device. The projector device includes a light source 200 and a light engine 100. The control method includes steps S110 to S130.

[0080] Step S110 : detecting a first light intensity of light emitted by the light engine 100 .

[0081] Step S120 : controlling the light engine 100 to adjust the first light intensity according to the first light intensity and a preset target light intensity.

[0082] Specifically, if the first light intensity is less than the target light intensity, the light engine 100 is controlled to increase the first light intensity; if the first light intensity is greater than the target light intensity, the light engine 100 is controlled to decrease the first light intensity.

[0083] In step S130 , if the first light intensity is adjusted to the first light intensity threshold and the adjusted first light intensity is less than the target light intensity, the second light intensity of the light emitted by the light source 200 is adjusted to increase the first light intensity of the light emitted by the light engine 100 .

[0084] The first light intensity threshold may be the intensity value of the light emitted by the light source 200 when the light engine 100 is operating normally, such as 80% of the intensity value of the light emitted by the light source 200, or may be the maximum intensity value of the light emitted by the light source 200 that can be used by the light engine 100, such as 100% of the intensity value of the light emitted by the light source 200.

[0085] This embodiment of the present invention detects the first intensity of light emitted by light engine 100 and then controls light engine 100 to adjust the first intensity based on the first intensity and a preset target intensity. If the first intensity is adjusted to a first intensity threshold and the adjusted first intensity is less than the target intensity, the second intensity of light emitted by light source 200 is adjusted to increase the first intensity of light emitted by light engine 100. By detecting the intensity of light emitted by light engine 100 and collaboratively adjusting the light emitted by light engine 100 and light source 200, the accuracy of brightness adjustment of the projector device is improved. Furthermore, compared to directly adjusting the intensity of light engine 100, which may result in failure to achieve the required brightness, and directly adjusting the intensity of light source 200, which may result in wasted energy, this embodiment collaboratively adjusts the light emitted by light engine 100 and light source 200, enabling the projector to meet normal operating requirements and optimizing energy utilization.

[0086] In one embodiment, after the step of adjusting the second light intensity of the output light of the light source 200, the control method further includes detecting the second light intensity of the output light of the light source 200; if the second light intensity is adjusted to a second light intensity threshold and the first light intensity is less than the target light intensity, controlling the light source 200 to reduce the second light intensity.

[0087] In one embodiment, after the step of adjusting the second light intensity of the light emitted by the light source 200, the control method further includes detecting the RGB value of the light emitted by the light source 200. If the first light intensity is equal to the target light intensity, the light emitted by the light source 200 is adjusted according to the RGB value and the second light intensity.

[0088] In one embodiment, the step of adjusting the light emitted from the light source 200 according to the RGB value and the second light intensity includes: calculating the RGB ratio according to the RGB value, and adjusting the RGB value of the light emitted from the light source 200 according to the second light intensity if the RGB ratio exceeds a preset range.

[0089] In one embodiment, the control method further includes setting a water cooler 106, wherein the water cooler 106 includes a water cooling plate, which is set on the side of the lamp bead board of the light source 200 away from the lamp beads, and the water cooler 106 is used to cool the lamp bead board.

[0090] In one embodiment, the control method further includes collecting the temperature of the lamp bead board in the light source 200 and controlling the circulating water flow rate of the water chiller 106 according to the temperature of the lamp bead board.

[0091] In one embodiment, the control method further includes: providing a plurality of temperature sensors, wherein each temperature sensor is provided at a light emitting point of the light source 200 , a base of the light source 200 , or a water-cooling plate.

[0092] In one embodiment, the control method further includes detecting the driving current of each lamp bead of the light source 200, and then controlling the spare lamp bead of the abnormal lamp bead to light up or reducing the light intensity of the lamp bead with a different color from the abnormal lamp bead, where the abnormal lamp bead is the lamp bead with abnormal driving current.

[0093] It can be understood that abnormal lamp beads are lamp beads that are abnormally off. By detecting the driving current of each lamp bead, it is possible to detect which lamp beads have abnormally turned off.

[0094] In one embodiment, the step of adjusting the second light intensity of the light emitted by the light source 200 may include: setting a light intensity adjustment step, and controlling the light source 200 to increase the second light intensity according to the light intensity adjustment step.

[0095] In one embodiment, after controlling the light source 200 to increase the second light intensity according to the light intensity adjustment step, the control method further includes controlling the light engine 100 to reduce the first light intensity if the first light intensity is greater than the target light intensity.

[0096] In one embodiment, the control method further includes: inputting a user instruction, where the user instruction includes a target brightness, and then acquiring the target light intensity according to the user instruction.

[0097] An embodiment of the present invention further provides a projector device, comprising a projector device and the control device described in any one of the above embodiments.

[0098] Throughout this specification, references to terms such as "some embodiments," "other embodiments," and "desired embodiments" indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Although these terms are used interchangeably throughout this specification, they do not necessarily refer to the same embodiment or example.

[0099] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A control device, applied to a projector device, wherein the projector device includes a light source and a light engine, characterized in that: include: A first light intensity sensor is provided at the light output of the light engine, and is used to detect a first light intensity of the light output from the light engine; a first controller, connected to the first light intensity sensor and the light engine, respectively, for controlling the light engine to adjust the first light intensity according to the first light intensity and a preset target light intensity; a second controller connected to the first controller and the light source, respectively, for adjusting a second light intensity of the light emitted by the light source to increase the first light intensity of the light emitted by the light engine if the first light intensity is adjusted to a first light intensity threshold and the adjusted first light intensity is less than the target light intensity; The control device further comprises: a second light intensity sensor, disposed at the exit light of the light source, for detecting a second light intensity of the exit light of the light source; The second controller is further connected to the second light intensity sensor and is configured to control the light source to reduce the second light intensity if the second light intensity is adjusted to a second light intensity threshold and the first light intensity is less than the target light intensity; The second light intensity sensor is further configured to detect RGB values ​​of the light emitted by the light source, and the second controller is further configured to adjust the light emitted by the light source according to the RGB values ​​and the second light intensity if the first light intensity is equal to the target light intensity; The second controller is further configured to calculate an RGB ratio based on the RGB values, and if the RGB ratio exceeds a preset range, adjust the RGB value of the output light of the light source based on the second light intensity.

2. The control device according to claim 1, characterized in that The control device further comprises: The water cooler comprises a water cooling plate, which is arranged on a side of the lamp bead plate of the light source away from the lamp beads, and is used to cool the lamp bead plate.

3. The control device according to claim 2, characterized in that The control device further comprises: A temperature acquisition module, used to acquire the temperature of the lamp bead board in the light source; The first controller is also connected to the temperature acquisition module and the water cooler respectively, and is used to control the circulating water flow rate of the water cooler according to the temperature of the lamp bead board.

4. The control device according to claim 3, characterized in that The temperature acquisition module includes a plurality of temperature sensors, each of which is respectively arranged at the light output location of the light source, the base of the light source or the water cooling plate.

5. The control device according to claim 1, characterized in that The device further comprises: A current detection module, used to detect the driving current of each lamp bead of the light source; The first controller is connected to the current detection module and the light source respectively, and is used to control the spare lamp beads of the abnormal lamp beads to light up or reduce the light intensity of the lamp beads with different colors from the abnormal lamp beads, wherein the abnormal lamp beads are lamp beads with abnormal driving current.

6. The control device according to claim 5, characterized in that The number of red lamp beads of the light source is greater than the number of green lamp beads, and the number of green lamp beads is greater than the number of blue lamp beads.

7. The control device according to claim 6, characterized in that There are 16 red lamp beads, 8 green lamp beads, and 6 blue lamp beads.

8. The control device according to claim 1, characterized in that The second controller is further configured to: Set the light intensity adjustment step; controlling the light source to increase the second light intensity according to the light intensity adjustment step; The first controller is further configured to control the light engine to reduce the first light intensity if the first light intensity is greater than the target light intensity.

9. A control method, applied to a projector device, characterized in that: The projector device includes a light source and a light engine, and the control method includes: detecting a first light intensity of light emitted by the light engine; controlling the light engine to adjust the first light intensity according to the first light intensity and a preset target light intensity; If the first light intensity is adjusted to a first light intensity threshold and the adjusted first light intensity is less than the target light intensity, adjusting the second light intensity of the light emitted by the light source to increase the first light intensity of the light emitted by the light engine; After the step of adjusting the second light intensity of the light emitted by the light source, the control method further includes: detecting a second light intensity of the light emitted by the light source; if the second light intensity is adjusted to a second light intensity threshold and the first light intensity is less than the target light intensity, controlling the light source to reduce the second light intensity; After the step of adjusting the second light intensity of the light emitted by the light source, the control method further includes: detecting RGB values ​​of the light emitted by the light source, and if the first light intensity is equal to the target light intensity, adjusting the light emitted by the light source according to the RGB values ​​and the second light intensity; The step of adjusting the emitted light of the light source according to the RGB value and the second light intensity includes: calculating an RGB ratio according to the RGB value, and adjusting the RGB value of the emitted light of the light source according to the second light intensity if the RGB ratio exceeds a preset range.

10. A projector device, characterized in that: include: Projector device; as well as The control device according to any one of claims 1 to 8.

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