CN118075435A

CN118075435A - Projection equipment and instruction response method

Info

Publication number: CN118075435A
Application number: CN202410087341.0A
Authority: CN
Inventors: 陈相涛
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2024-01-22
Filing date: 2024-01-22
Publication date: 2024-05-24

Abstract

Some embodiments of the present application provide a projection apparatus and an instruction response method, in which a controller obtains first position information of an automatic dust cap from a detector, the first position information being fully opened or fully closed. And responding to the first state switching instruction, switching the projection equipment from the first state to the second state, wherein the first state is an off state or an on state, the second state is the off state or the on state, and the first state and the second state are different states. And receiving a second state switching instruction, and acquiring second position information of the automatic dust cover from the detector, wherein the second position information is completely opened or completely closed. If the second location information matches the first location information, the second state switch instruction is not responded. Therefore, if the misoperation of the power key by the user is received in the starting-up process or the shutdown process of the projection equipment, the misoperation cannot be responded, and the trouble to the user experience is avoided.

Description

Projection equipment and instruction response method

Technical Field

The present application relates to the field of projection devices, and in particular, to a projection device and an instruction response method.

Background

A projection device is a display device that can project images or video onto a screen. The projection device can project laser rays with specific colors to a screen through the refraction action of the optical lens assembly to form a specific image. In the projection process, a certain distance needs to be kept between the projection device and the screen, so that the projection device can project laser rays to a placement area of the screen, and a corresponding projection picture is displayed on the screen.

In order to protect the components inside the projection device from dust, the projection device is added with an automatic dust cover. When the projection equipment is in a starting state, the automatic dust cover is fully opened, and at the moment, if a shutdown instruction is received, the projection equipment is switched from the starting state to the shutdown state, and the automatic dust cover is slowly closed until the projection equipment is fully closed. When the projection equipment is in a power-off state, the automatic dust cover is completely closed, and at the moment, if a power-on instruction is received, the projection equipment is switched from the power-off state to the power-on state, and the automatic dust cover is slowly opened until the projection equipment is completely opened. The user input of the power-off command and the power-on command is typically achieved by pressing a power key.

However, in actual use, it takes a while for the automatic dust cover to switch from fully open to fully closed, or from fully closed to fully open. In the sliding process of the automatic dust cover, if a user mistakenly triggers the power key, the automatic dust cover will not stop at an expected position in response to the triggering instruction, and user experience is puzzled.

Disclosure of Invention

The application provides projection equipment and an instruction response method, which are used for solving the problem that in the sliding process of an automatic dust cover, if a user mistakenly triggers a power key, the automatic dust cover will not stop at an expected position in response to the triggering instruction, so that user experience is puzzled.

In a first aspect, some embodiments of the present application provide a projection apparatus, comprising:

a light emitting assembly configured to project projected content onto a projection surface;

a detector configured to generate position information from a position of the automatic dust cover;

a controller configured to:

Acquiring first position information of the automatic dust cover from the detector, wherein the first position information is completely opened or completely closed;

Responding to a first state switching instruction, switching the projection equipment from a first state to a second state, wherein the first state is a shutdown state or a startup state, the second state is a shutdown state or a startup state, the first state and the second state are different states, if the first state is the shutdown state, the first position information is completely closed, if the first state is the startup state, the first position information is completely opened, and the first state switching instruction is an instruction input by a user through pressing a power key;

receiving a second state switching instruction, and acquiring second position information of the automatic dust cover from the detector, wherein the second position information is completely opened or completely closed, and the second state switching instruction is an instruction input by a user through pressing a power key;

And if the second position information is matched with the first position information, not responding to the second state switching instruction.

In a second aspect, some embodiments of the present application further provide an instruction response method applied to a projection apparatus, where the projection apparatus includes a light emitting component, a detector, and a controller, and the light emitting component is configured to project projection content onto a projection surface; the detector is configured to generate position information from a position of an automatic dust cap, the method comprising:

According to the above technical solutions, in the projection device and the instruction response method provided by some embodiments of the present application, the controller obtains the first position information of the automatic dust cover from the detector, where the first position information is completely opened or completely closed. And responding to the first state switching instruction, switching the projection equipment from the first state to the second state, wherein the first state is an off state or an on state, the second state is the off state or the on state, and the first state and the second state are different states. If the first state is the off state, the first position information is completely off, and if the first state is the on state, the first position information is completely on, and the first state switching instruction is an instruction input by a user by pressing a power key. And receiving a second state switching instruction, and acquiring second position information of the automatic dust cover from the detector, wherein the second position information is completely opened or completely closed, and the second state switching instruction is an instruction input by a user through pressing a power key. If the second location information matches the first location information, the second state switch instruction is not responded. Therefore, if the misoperation of the power key by the user is received in the starting-up process or the shutdown process of the projection equipment, the misoperation cannot be responded, and the trouble to the user experience is avoided.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a projection state of a projection device according to some embodiments of the present application;

FIG. 2 is a schematic diagram of a projection apparatus according to some embodiments of the present application;

fig. 3 is a schematic diagram of an optical-mechanical architecture of a projection device according to some embodiments of the present application;

FIG. 4 is a schematic view of an optical path of a projection device according to some embodiments of the present application;

fig. 5 is a schematic view of a lens structure of a projection device according to some embodiments of the present application;

FIG. 6 is a schematic diagram of a distance sensor and camera according to some embodiments of the present application;

FIG. 7 is a schematic diagram of a system frame of a projection device according to some embodiments of the present application;

FIG. 8 is a schematic diagram illustrating a fully opened automatic dust cap of a projection apparatus according to some embodiments of the present application;

FIG. 9 is a schematic diagram illustrating a fully closed state of an automatic dust cap of a projection apparatus according to some embodiments of the present application;

FIG. 10 is a schematic illustration of an automatic dust cap of a projection apparatus according to some embodiments of the present application during sliding;

FIG. 11 is a flow chart of an instruction response method according to some embodiments of the present application;

fig. 12 is a flowchart illustrating an example of an application of an instruction response method according to some embodiments of the present application.

Detailed Description

For the purposes of making the objects and embodiments of the present application more apparent, an exemplary embodiment of the present application will be described in detail below with reference to the accompanying drawings in which exemplary embodiments of the present application are illustrated, it being apparent that the exemplary embodiments described are only some, but not all, of the embodiments of the present application.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

The terms first, second, third and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware or/and software code that is capable of performing the function associated with that element.

The embodiment of the application can be applied to various types of projection devices. Hereinafter, a projector will be exemplified, and a projection apparatus and an auto-focusing method will be described.

The projector is a device capable of projecting images or videos on a screen, and can play corresponding video signals through different interfaces in connection with a computer, a broadcasting network, the Internet, a VCD (Video Compact Disc: video compact disc), a DVD (DIGITAL VERS ATILE DISC Recordable: digital video disc), a game console, a DV and the like. Projectors are widely used in homes, offices, schools, entertainment venues, and the like.

In some embodiments, the projection device may also be in data communication with the server via a variety of communication means. The projection device may be permitted to communicate over a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks.

Fig. 1 shows a schematic layout of a projection device according to an embodiment of the present application, and fig. 2 shows a schematic light path of a projection device according to an embodiment of the present application.

In some embodiments, referring to FIGS. 1-2, a projection device is provided that includes a projection screen and a projection device. The projection screen is fixed in a first position and the projection device 2 is placed in a second position so that the projected image coincides with the projection screen. The projection device comprises a laser light source 100, a light machine 200, a lens 300 and a projection surface 400. The laser light source 100 provides illumination for the optical machine 200, and the optical machine 200 modulates the light beam of the light source, outputs the modulated light beam to the lens 300 for imaging, and projects the imaged light beam onto the projection surface 400 to form a projection screen. Since the laser light source 100, the optical engine 200, and the lens 300 are commonly used for emitting projection light to project a projection image, in some embodiments of the present application, the laser light source 100, the optical engine 200, and the lens 300 are commonly referred to as an optical output assembly.

In some embodiments, the laser light source 100 of the projection device includes a laser assembly and an optical lens assembly, and a light beam emitted from the laser assembly can penetrate the optical lens assembly to provide illumination for the optical machine. Wherein, for example, the optical lens assembly requires a higher level of environmental cleanliness, hermetic level of sealing; and the chamber for mounting the laser assembly can be sealed by adopting a dustproof grade with a lower sealing grade so as to reduce the sealing cost.

In some embodiments, the light engine 200 of the projection device may be implemented to include a blue light engine, a green light engine, a red light engine, a heat dissipation system, a circuit control system, and the like. It should be noted that, in some embodiments, the light emitting component of the projector may also be implemented by an LED light source.

Fig. 3 is a schematic circuit diagram of a projection device according to an embodiment of the application. In some embodiments, the projection device may include a display control circuit 10, a laser light source 100, at least one laser driving assembly 30, and at least one brightness sensor 40, and the laser light source 100 may include at least one laser in one-to-one correspondence with the at least one laser driving assembly 30. Wherein, the at least one means one or more, and the plurality means two or more.

Based on the circuit architecture, the projection device can realize adaptive adjustment. For example, by providing the luminance sensor 40 in the light-emitting path of the laser light source 100, the luminance sensor 40 can detect the first luminance value of the laser light source and send the first luminance value to the display control circuit 10.

The display control circuit 10 may obtain a second brightness value corresponding to the driving current of each laser, and determine that the laser has a COD fault when it is determined that the difference between the second brightness value of the laser and the first brightness value of the laser is greater than a difference threshold; the display control circuit can adjust the current control signals of the corresponding laser driving components of the lasers until the difference value is smaller than or equal to the difference value threshold value, so that the COD fault of the blue laser is eliminated; the projection equipment can timely eliminate the COD fault of the laser, reduce the damage rate of the laser and improve the image display effect of the projection equipment.

Fig. 4 shows a schematic structural diagram of a projection apparatus according to an embodiment of the present application.

In some embodiments, the laser light source 100 in the projection device may include a blue laser 101, a red laser 102 and a green laser 103 that are separately disposed, and the projection device may also be referred to as a three-color projection device, where the blue laser 101, the red laser 102 and the green laser 103 are all light-weight (Mirai Console Loader, MCL) packaged lasers, which are small in size and facilitate compact arrangement of the optical paths.

In some embodiments, the controller includes at least one of a central processing unit (Central Processing Unit, CPU), a video processor, an audio processor, a graphics processor (Graphics Processing Unit, GPU), RAM (Random Access Memory, RAM), ROM (Read-Only Memory, ROM), a first interface to an nth interface for input/output, a communication Bus (Bus), and the like.

In some embodiments, the projection device further includes a communicator that is coupled to a communication Bus (Bus). Wherein the communicator is a component for communicating with an external device or server according to various communication protocol types.

In some embodiments, the projection device may be configured with a camera for cooperating with the projection device to effect regulatory control of the projection process. For example, the camera of the projection device configuration may be embodied as a 3D camera, or a binocular camera; when the camera is implemented as a binocular camera, the camera specifically includes a left camera and a right camera; the binocular camera can acquire the corresponding curtain of the projection device, namely the image and the playing content presented by the projection surface, and the image or the playing content is projected by the built-in optical machine of the projection device.

When the projection device moves to a position, the projection angle and the projection plane distance of the projection device are changed, so that the projection image is deformed, and the projection image is displayed as a trapezoid image or other malformed images; the controller of the projection device 2 can realize automatic trapezoid correction by coupling the included angle between the projection surfaces of the optical machine and the correct display of the projected image based on the image shot by the camera.

The camera may be used to capture an image displayed in the projection surface, and may be a camera. The camera may include a lens assembly having a photosensitive element and a lens disposed therein. The lens makes the light of the image of the scenery irradiate on the photosensitive element through the refraction action of a plurality of lenses on the light. The photosensitive element can select a detection principle based on a charge coupled device or a complementary metal oxide semiconductor according to the specification of the camera, converts an optical signal into an electric signal through a photosensitive material, and outputs the converted electric signal into image data.

Fig. 5 shows a schematic view of a lens structure of a projection device in some embodiments. To support the auto-focusing process of the projection device, as shown in fig. 5, the lens 300 of the projection device may further include an optical assembly 310 and a driving motor 320. The optical component 310 is a lens group formed by one or more lenses, and can refract the light emitted by the optical machine 200, so that the light emitted by the optical machine 200 can be transmitted to the projection surface to form a transmission content image.

The optical assembly 310 may include a barrel and a plurality of lenses disposed within the barrel. Depending on whether the lens position is movable, the lenses in the optical assembly 310 may be divided into a moving lens 311 and a fixed lens 312, and the distance between the moving lens 311 and the fixed lens 312 is adjusted by changing the position of the moving lens 311, thereby changing the overall focal length of the optical assembly 310. Therefore, the driving motor 320 can drive the moving lens 311 to move by connecting with the moving lens 311 in the optical assembly 310, so as to realize an auto-focusing function.

It should be noted that, in some embodiments of the present application, the focusing process is to change the position of the moving lens 311 by driving the motor 320, so as to adjust the distance between the moving lens 311 and the fixed lens 312, i.e. adjust the image plane position, so that the lens assembly of the optical assembly 310 has an imaging principle that the adjusting focal length is actually adjusting the image distance, but in terms of the overall structure of the optical assembly 310, adjusting the position of the moving lens 311 is equivalent to adjusting the overall focal length of the optical assembly 310.

When the projection device is at different distances from the projection surface, the lens of the projection device is required to adjust different focal lengths so as to transmit a clear image on the projection surface. In the projection process, the distance between the projection device and the projection surface is different depending on the placement positions of the users, so that different focal lengths are required. Accordingly, to accommodate different usage scenarios, the projection device needs to adjust the focal length of the optical assembly 310.

Fig. 6 illustrates a schematic diagram of the distance sensor 600 and camera 700 structure in some embodiments. As shown in fig. 6, the projection device 2 may further have a built-in or external camera 700, and the camera 700 may perform image capturing on a picture projected by the projection device to obtain a projected content image. The projection device then determines whether the current lens focal length is proper or not by detecting the definition of the projected content image, and adjusts the focal length when the current lens focal length is improper. When auto-focusing is performed based on the projected content image captured by the camera 700, the projection apparatus 2 can adjust the moving lens 311 in the optical assembly to a proper position by continuously adjusting the lens position and taking a picture, and finding the focusing position by comparing the sharpness of the front and rear position pictures. For example, the controller may control the driving motor 320 to gradually move the focusing start position to the focusing end position of the moving mirror 311, and continuously acquire the projection content image through the camera 700 during this period. And then, the position with the highest definition is determined by performing definition detection on the plurality of projection content images, and finally, the driving motor 320 is controlled to adjust the movable lens 311 from the focusing terminal to the position with the highest definition, so that automatic focusing is completed.

FIG. 7 is a schematic diagram of a system frame for implementing display control by a projection device according to an embodiment of the present application.

In some embodiments, the projection device has the characteristic of micro-projection of long focus, and the controller can perform display control on the projected light image through a preset algorithm so as to realize the functions of automatic trapezoid correction, automatic curtain entering, automatic obstacle avoidance, automatic focusing, eye injection prevention and the like of the display picture.

In some embodiments, the projection device is configured with a gyroscopic sensor; in the moving process of the equipment, the gyroscope sensor can sense the position movement and actively collect movement data; and then the acquired data is sent to an application program service layer through a system framework layer to support application data required in the user interface interaction and application program interaction process, and the acquired data can be used for data calling of the controller in algorithm service realization.

In some embodiments, the projection device is configured with a time-of-flight sensor, which, after having collected the respective data, will be sent to the corresponding time-of-flight service of the service layer; after the flight time service acquires the data, the acquired data is sent to an application program service layer through a process communication framework, and the data is used for data calling, user interfaces, program applications and the like of the controller in an interactive mode.

In some embodiments, the projection device configured camera 700 may be a binocular camera, a depth camera, a 3D camera, or the like; the camera 700 collects data to be sent to the camera service, and then the camera service sends the collected image data to the process communication frame and/or the projection device correction service; the projection equipment correction service can receive camera acquisition data sent by the camera service, and the controller can call a corresponding control algorithm in the algorithm library aiming at different functions to be realized.

In some embodiments, data interaction with the application service is performed through the process communication framework, and then the calculation result is fed back to the correction service through the process communication framework; the correction service sends the obtained calculation result to the projection equipment operating system to generate a control signaling, and sends the control signaling to the optical machine 200 to control the driving so as to control the working condition of the optical machine 200 and realize the automatic correction of the display image.

In some embodiments, the projection device may correct the projected image when an image correction instruction is detected. For correction of the projection image, the association relationship among the distance, the horizontal included angle, and the offset angle may be created in advance. Then, the controller in the projection device determines the included angle between the optical machine 200 and the projection surface at the moment by acquiring the current distance between the optical machine 200 and the projection surface and combining the association relationship, so as to realize the correction of the projection image. The included angle is specifically implemented as an included angle between the central axis of the optical machine 200 and the projection plane.

In some embodiments, the projection device automatically completes the correction and refocuses, and the controller will detect whether the autofocus function is on; when the automatic focusing function is not started, the controller ends the automatic focusing service; when the auto-focusing function is on, the projection device will calculate the detection distance of the time-of-flight sensor acquired by the middleware.

The controller queries a preset mapping table according to the obtained distance to obtain the focal length of the projection equipment; the middleware then sets the acquisition focal length to the ray apparatus 200 of the projection device; wherein the middleware is a series of application programs related to a focusing control process. After the optical machine 200 emits laser with the focal length, the camera executes a photographing instruction; the controller judges whether the focusing process of the projection equipment is finished or not according to the acquired shooting image and the evaluation function.

If the judging result meets the preset finishing condition, the automatic focusing process is controlled to be finished; if the determined result does not meet the preset completion condition, the middleware will fine-tune the focal length parameters of the optical machine 200 of the projection device 2, for example, the focal length can be gradually fine-tuned by a preset step length, and the adjusted focal length parameters are set to the optical machine 200 again; therefore, repeated photographing and definition evaluation steps are realized, and finally, the optimal focal length is found through definition comparison to complete automatic focusing.

In some embodiments, the projection device is provided with an automatic dust cover in order to protect the components inside the projection device from dust.

As shown in fig. 8, when the projection device is in the on state, which may be the S0 state in ACPI (Advanced Configuration and Power MAN AGEMENT INTERFACE ), the projection device is in the normal operating state. If the projection device receives a shutdown instruction (usually an instruction input by pressing a power key) input by a user at the moment, the projection device is switched from a startup state to a shutdown state, and the automatic dust cover is controlled to be slowly closed until the projection device is completely closed. The shutdown state here may be an S3 state in ACPI, i.e., an STR (Suspend To RAM) state.

The projection equipment enters an STR state, stores the current running state and other data in a memory, closes the hard disk, peripheral equipment and other equipment, and enters a waiting state. At this time, the memory still needs power to maintain its data, but the power consumption of the whole machine is less. When the STR state is recovered, the projection equipment can directly read data from the memory, and the state before suspension is returned, so that the recovery speed is higher. When the projection equipment is in STR state, the power module also supplies power to the automatic dust cover, so the automatic dust cover can be slowly closed until the automatic dust cover is completely closed. That is, as shown in fig. 9, when the projection apparatus is in the off state, the automatic dust cover is completely closed.

When the projection device is in the STR state, if the projection device receives a starting instruction (usually an instruction input by pressing a power key) input by a user at the moment, the projection device is switched from the STR state to the starting state, and meanwhile, the automatic dust cover is controlled to be slowly opened until the automatic dust cover is completely opened.

In actual use, the projection device is switched from the on state to the off state, the automatic dust cover is switched from the full open state to the full closed state, and the automatic dust cover needs to be switched in a sliding manner for a period of time. If the user mistakenly triggers the power key in the sliding closing process of the automatic dust cover, the projection equipment can normally process the key instruction at the moment. The automatic dust cover responds to the key instruction immediately after being completely closed, and the automatic dust cover is slowly opened again. Similarly, the projection device is switched from the off state to the on state, the automatic dust cover is switched from the fully closed state to the fully opened state, and the automatic dust cover takes a certain time to slide and switch. If the user mistakenly triggers the power key in the process of sliding and opening the automatic dust cover, the projection device cannot know the sliding state of the automatic dust cover because the automatic dust cover is not fully opened, and the automatic dust cover stops sliding at the moment, as shown in fig. 10, so that the internal components of the projection device are exposed to external dust. Fig. 8 to 10 are plan views of the projection apparatus, and fig. 8 to 10 are diagrams for showing a sliding state of the slide cover, so that other parts of the projection apparatus are omitted.

In view of the foregoing, some embodiments of the present application provide a projection apparatus, as shown in fig. 8, an overall body 801 of the projection apparatus may be rectangular parallelepiped, and a cavity for accommodating components is provided in the body. The projection device of the present application includes a light-emitting component 802, the light-emitting component 802 being configured to project projected content onto a projection surface. Components such as the light emitting module 802 are mounted in a cavity of a body of the projection apparatus. The projection device of the present application further includes an automatic dust cover 803, and the automatic dust cover 803 is slidable along the upper surface of the body 801. The projection device may slide along the upper surface of the body 801 by an internally disposed rotating motor that drives the automatic dust cover 803. The projection device is further provided with a control unit for controlling the operation of the motor, such as a light engine module, which further comprises a light adjusting assembly and a heat conducting assembly.

The automatic dust cover 803 shown in fig. 8 is in a fully open position, so that the projection content can be projected onto the projection surface when the laser light source of the light emitting module 802 is on. The automatic dust cover 803 shown in fig. 9 is in the fully closed position, so that even if the laser light source of the light emitting module 802 is still on (the laser light source of the light emitting module 802 is turned off after the projection apparatus is turned off in actual use), projection contents cannot be projected onto the projection surface. The automatic dust cover 803 shown in fig. 10 is in the sliding process, and at this time, the light emitting component 802 may or may not project the projection content onto the projection surface until the automatic dust cover 803 slides to the position shown in fig. 8.

Some embodiments of the present application provide a projection device further comprising a detector 804 for detecting a position of the automatic dust cover 803, and generating position information according to the detected position of the automatic dust cover 803, and then reporting the position information to the controller. The detector 804 may include a first detector 8041 and a second detector 8042. The first detector 8041 and the second detector 8042 are provided along the sliding direction of the automatic dust cover 803, and are provided at both ends of the projection apparatus, respectively. Thus, the first detector 8041 and the second detector 8042 can detect two pieces of positional information of the automatic dust cover 803, respectively: fully open and fully closed.

If the automatic dust cap 803 shown in fig. 10 is in the process of being opened, the sliding direction of the automatic dust cap 803 in fig. 10 is a direction sliding toward the first detector 8041. When the automatic dust cover 803 reaches the position shown in fig. 8, the first detector 8041 may detect that the automatic dust cover 803 has reached the position shown in fig. 8, and generate position information, the position information generated by the first detector 8041 being fully open. If the automatic dust cap 803 shown in fig. 10 is in the process of being closed, the sliding direction of the automatic dust cap 803 in fig. 10 is a direction sliding toward the second detector 8042. When the automatic dust cover 803 reaches the position shown in fig. 9, the second detector 8042 may detect that the automatic dust cover 803 has reached the position shown in fig. 9, and generate position information, the position information generated by the second detector 8042 being completely closed.

The detector 804 of an embodiment of the present application may include a distance sensor and a processor. When the automatic dust cover 803 slides from the position shown in fig. 10 to the position shown in fig. 8, the automatic dust cover 803 is not within the detection range of the first detector 8041, that is, from the automatic dust cover 803 being detected to the automatic dust cover 803 not being detected, the processor determines that the automatic dust cover 803 has slid to the position shown in fig. 8, and thus the position information that can be generated is completely closed. When the automatic dust cover 803 slides from the position shown in fig. 10 to the position shown in fig. 9, the automatic dust cover 803 is within the detection range of the second detector 8042, that is, from the automatic dust cover 803 being undetectable to the automatic dust cover 803 being detectable, the processor determines that the automatic dust cover 803 has slid to the position shown in fig. 9, and therefore the position information that can be generated is fully open.

The detector 804 of the embodiment of the application can also detect the position of the automatic dust cover 803 by using a PIN. For example, when the automatic dust cover 803 is slid from the position shown in fig. 10 to the position shown in fig. 8, a pin at the position is triggered, and when the pin detects a signal input, the processor determines that the automatic dust cover 803 has been slid to the position shown in fig. 8. When the automatic dust cover 803 is slid from the position shown in fig. 10 to the position shown in fig. 9, a pin of the position is triggered, and when the pin detects a signal input, the processor determines that the automatic dust cover 803 has been slid to the position shown in fig. 9. The above is merely an example of detecting the position of the automatic dust cap, and the present application is not limited to a specific manner of detecting the position of the automatic dust cap 803.

In order to facilitate understanding of the technical solutions in some embodiments of the present application, the following details of each step are described with reference to some specific embodiments and the accompanying drawings. Fig. 11 is a flowchart of a method for responding to an execution instruction of a projection device according to some embodiments of the present application. As shown in fig. 11, the instruction response method executed by the projection device according to the embodiment of the present application includes the following steps:

Step S1101, acquiring first position information of the automatic dust cover 803 from the detector, wherein the first position information is fully opened or fully closed.

In step S1102, in response to a first state switching instruction, the projection device is switched from a first state to a second state, where the first state is a power-off state or a power-on state, the second state is a power-off state or a power-on state, the first state and the second state are different states, if the first state is the power-off state, the first position information is completely closed, and if the first state is the power-on state, the first position information is completely opened, and the first state switching instruction is an instruction input by a user by pressing a power key.

In implementing the embodiment of the present application, before receiving the state switching instruction, the projection device has an initial state, and the detector 804 stores the first position information of the automatic dust cover 803 at the current initial state, the first position information being fully opened or fully closed. The initial state of the projection device is the first state at this time. If the first state of the projection apparatus is the off state, the first position information of the automatic dust cover 803 is completely off. If the first state of the projection device is the on state, the first position information of the automatic dust cover 803 is fully opened.

For example, as shown in fig. 8, the first state (initial state) of the projection device is an on state, which may be an S0 state in ACPI, and the on state is also switched from an off state, where the first position information of the automatic dust cover 803 stored in the detector 804 is completely closed. The detector 804 updates the stored position information after detecting the change of the position information of the automatic dust cover 803, that is, the detector 804 stores only the latest position information of the automatic dust cover 803, and the controller can only acquire the latest position information of the automatic dust cover 803 from the detector 804. The detector 804 can only detect the position information of the automatic dust cover 803 at two positions of fig. 8 (fully open) and fig. 9 (fully closed), the detector 804 can only generate the position information of the two positions, and the controller can only acquire the position information of the two positions from the detector 804.

The detector 804 may actively report the position information of the automatic dust cover 803 to the controller when detecting the position change of the automatic dust cover 803, and the position information of the automatic dust cover 803 stored in the detector 804 is the latest position information. Therefore, the first position information of the automatic dust cover acquired from the controller before the controller receives the first state switching instruction is the latest position information of the automatic dust cover 803.

The first state switching instruction is an instruction input by a user by pressing a power key on the remote controller, and indicates that the user needs to switch the projection device from the current first state to the second state. For example, from an off state to an on state, or from an on state to an off state. The controller controls the projection device to switch from the first state to the second state in response to the first state switching instruction. If the power supply is switched from the power-off state to the power-on state, the state switching process of the whole machine can comprise the power-on action of the power supply module, the initialization of the backlight screen, the sliding of the automatic dust cover driven by the motor and the like. If the power-on state is switched to the power-off state, the state switching process of the whole machine can comprise the steps of power failure of a power module, extinction of a backlight screen, sliding of an automatic dust cover driven by a motor and the like. The embodiment of the application mainly considers that the motor drives the automatic dust cover to slide in the whole machine state switching process.

Step S1103, receiving a second state switching instruction, and obtaining second position information of the automatic dust cover from the detector, where the second position information is a fully opened or fully closed instruction, and the second state switching instruction is an instruction input by a user by pressing a power key.

In the process of switching the projection device from the first state to the second state, if the second state switching instruction is received, since the whole projection device has a certain size, it takes a certain time for the motor to drive the automatic dust cover 803 to slide from the initial position to the predetermined position, and thus it is necessary to determine whether the automatic dust cover 803 has slid to the predetermined position. In particular, the second position information of the automatic dust cap 803 is acquired from the detector 804. Here, the second position information of the automatic dust cover 803 may be acquired from the detector 804, and a position information request may be sent to the detector 804, and after the detector 804 receives the position information request, the second position information of the automatic dust cover 803 is fed back to the controller, where the second position information is still the latest position information of the automatic dust cover 803. The second position information is still fully open or fully closed. The second state switching instruction is still an instruction input by the user by pressing the power key. The second position information may also be position information that the detector 804 actively feeds back to the controller after updating the position information, and the controller may store the second position information to the memory. After receiving the second state switching instruction, comparing the second position information with the first position information.

Step S1104, if the second location information matches the first location information, does not respond to the second status switching instruction.

Step S1105, if the second location information does not match the first location information, responding to the second status switching instruction.

After receiving the second position information of the automatic dust cover 803 from the detector 804, the controller matches the second position information with the first position information, and then determines whether to respond to the second state switching instruction according to the matching result of the second position information and the first position information.

If the second position information matches the first position information, for example, the first position information is completely opened, and the second position information is still completely opened, the position information of the automatic dust cover 803 is not updated, that is, the automatic dust cover 803 is still in the sliding process, and the instruction at this time may be determined as an instruction that the user mistakenly triggers the input of the power key, so that the controller does not respond to the second state switching instruction. In this way, the user may not be in response to a command to falsely trigger the power key input during the sliding of the automatic dust cover 803. If the second position information does not match the first position, for example, the first position information is fully opened and the second position information is fully closed, the position information indicating the automatic dust cover 803 has been updated, that is, the automatic dust cover 803 has slid to a predetermined position, and the instruction at this time may be determined as an instruction that the user normally presses the power key input, and thus the controller may respond to the second state switching instruction.

It should be noted that if the second position information matches the first position information, not responding to the second state switching instruction means not controlling the projection device to perform state switching, but other key feedback may be given. For example, after receiving the misoperation input by the user, a prompt message "you have the wrong electric shock power key" can be popped up on the screen, or the user can be informed of the wrong electric shock power key through an alarm bell.

Based on the instruction response method, the process of the instruction response method of the application comprises two situations:

In a first case, if the first state is a shutdown state, the first location information is completely shutdown. Responding to a first state switching instruction, switching the projection equipment from a first state to a second state, receiving a second state switching instruction, acquiring second position information of the automatic dust cover from the detector, and determining whether the projection equipment does not respond to the second state switching instruction according to a matching result of the second position information and the first position information, wherein the method specifically comprises the following steps: responding to the first state switching instruction, and switching the projection equipment from a power-off state to a power-on state; and receiving the second state switching instruction, and if the second position information of the automatic dust cover acquired from the detector is completely closed, determining that the second position information is matched with the first position information, and not responding to the second state switching instruction. And if the second position information of the automatic dust cover is acquired from the detector to be completely opened, determining that the second position information is not matched with the first position information, and responding to the second state switching instruction.

For example, the first state of the projection apparatus shown in fig. 9 is the off state, and the state of the automatic dust cover 803 is the fully closed state, and therefore, the first position information acquired from the detector 804 by the controller at this time is the fully closed state. In the scenario in fig. 9, the user inputs a first state switching instruction by pressing the power key, and the projection apparatus switches from the off state to the on state. The automatic dust cap 803 slides from the position shown in fig. 9 toward the first detector 8041. Then a second status switch instruction entered by the user by pressing the power key is received, at which point the controller may obtain second position information of the automatic dust cap 804 from the detector 804. And then matching the second position information with the first position information, and determining whether to respond to the second state switching instruction according to the matching result.

If the second state switching instruction input by the user by pressing the power key is received, the automatic dust cover 803 is slid from the position shown in fig. 9 to the position shown in fig. 10, at which time the automatic dust cover 803 has not been completely slid to the predetermined position, and the position information stored in the detector 804 is still completely closed. That is, the second position information acquired by the controller from the detector 804 is still completely closed, so that the second position information matches with the first position information, which indicates that the automatic dust cover 803 is still in the sliding process, and the user mistakenly triggers the power key to input the second state switching instruction, so that the second state switching instruction is not responded.

If the automatic dust cover 803 is slid from the position shown in fig. 9 to the position shown in fig. 8 upon receiving a second state switching instruction input by the user by pressing the power key, at which time the automatic dust cover 803 has been slid to a predetermined position, the position information stored in the detector 904 is updated to be fully opened. That is, the second position information acquired by the controller from the detector 804 is completely opened, so that the second position information does not match the first position information, which means that the automatic dust cover 803 does not input the second state switching instruction by the user by triggering the power key by mistake during the sliding process, but rather, when the automatic dust cover 803 has slid to the predetermined position, the user inputs the second state switching instruction by pressing the power key, which means that the user intends to switch the state of the projection apparatus from the on state to the off state, and thus needs to respond to the second state switching instruction.

In a second case, if the first state is an on state, the first position information is completely opened. Responding to a first state switching instruction, switching the projection equipment from a first state to a second state, receiving a second state switching instruction, acquiring second position information of the automatic dust cover from the detector, and determining whether the projection equipment does not respond to the second state switching instruction according to a matching result of the second position information and the first position information, wherein the method specifically comprises the following steps: responding to the first state switching instruction, and switching the projection equipment from a starting state to a closing state; and receiving the second state switching instruction, and if the second position information of the automatic dust cover acquired from the detector is completely opened, determining that the second position information is matched with the first position information, and not responding to the second state switching instruction. And if the second position information of the automatic dust cover is acquired from the detector to be completely closed, determining that the second position information is not matched with the first position information, and responding to the second state switching instruction.

For example, the first state of the projection apparatus shown in fig. 8 is the on state, and the state of the automatic dust cover 803 is fully open, and therefore, the first position information acquired from the detector 804 by the controller at this time is fully open. In the scenario in fig. 9, the user inputs a first state switching instruction by pressing the power key, and the projection apparatus switches from the on state to the off state. The automatic dust cap 803 slides from the position shown in fig. 8 toward the second detector 8042. Then a second status switch instruction entered by the user by pressing the power key is received, at which point the controller may obtain second position information of the automatic dust cap 804 from the detector 804. And then matching the second position information with the first position information, and determining whether to respond to the second state switching instruction according to the matching result.

If the second state switching instruction input by the user by pressing the power key is received, the automatic dust cover 803 is slid from the position shown in fig. 8 to the position shown in fig. 10, at which time the automatic dust cover 803 has not been completely slid to the predetermined position, and the position information stored in the detector 804 is still completely opened. That is, the second position information acquired by the controller from the detector 804 is still completely opened, so that the second position information matches with the first position information, which indicates that the automatic dust cover 803 is still in the sliding process, and the user mistakenly triggers the power key to input the second state switching instruction, so that the second state switching instruction is not responded.

If the automatic dust cover 803 is slid from the position shown in fig. 8 to the position shown in fig. 9 upon receiving a second state switching instruction input by the user by pressing the power key, at which time the automatic dust cover 803 has been slid to a predetermined position, the position information stored in the detector 904 is updated to be completely closed. That is, the second position information acquired by the controller from the detector 804 is completely closed, so that the second position information does not match the first position information, which means that the automatic dust cover 803 does not falsely trigger the power key to input the second state switching instruction during the sliding process, but rather that the automatic dust cover 803 has slid to the predetermined position, the user inputs the second state switching instruction by pressing the power key, which indicates that the user intends to switch the state of the projection apparatus from the off state to the on state, and thus needs to respond to the second state switching instruction.

As can be seen from the above technical solutions, in the projection apparatus and the instruction response method provided in some embodiments of the present application, the controller obtains the first position information of the automatic dust cover 803 from the detector 804, where the first position information is completely opened or completely closed. And responding to the first state switching instruction, switching the projection equipment from the first state to the second state, wherein the first state is an off state or an on state, the second state is the off state or the on state, and the first state and the second state are different states. If the first state is the off state, the first position information is completely off, and if the first state is the on state, the first position information is completely on, and the first state switching instruction is an instruction input by a user by pressing a power key. And receiving a second state switching instruction, namely, an instruction input by a user by pressing a power key, and acquiring second position information of the automatic dust cover 803 from the detector 804, wherein the second position information is completely opened or completely closed. If the second location information matches the first location information, the second state switch instruction is not responded. Therefore, if the misoperation of the power key by the user is received in the starting-up process or the shutdown process of the projection equipment, the misoperation cannot be responded, and the trouble to the user experience is avoided.

In some embodiments, after not responding to the second state switching instruction, if a third state switching instruction is received, the third state switching instruction is still an instruction input by a user by pressing a power key, and when the third state switching instruction is received, third position information of the automatic dust cover 803 is obtained from the detector, wherein the third position information is completely opened or completely closed, and the third state switching instruction is an instruction input by the user by pressing the power key. And if the third position information is matched with the second position information, and the number of times of receiving the state switching instruction does not exceed a number threshold value, not responding to the third state switching instruction, wherein the number of times of receiving the state switching instruction represents the number of times that a user presses a power key after responding to the first state switching instruction.

Since the second position information matches the first position information, if the third position information matches the second position information, the third position information matches the first position information, indicating that the automatic dust cover 803 is still in the process of sliding. At this time, it may be determined whether the number of times of the received state switching instruction exceeds the number of times threshold, where the number of times of the received state switching instruction is the number of times of the state switching instruction received during the sliding of the automatic dust cover 803, and thus the count of times here does not include the first state switching instruction. If the number of times the status switch command is received does not exceed the threshold number of times during the sliding of the automatic dust cover 803, the third status switch command is still not responded. If the number of times the status switching command is received exceeds the threshold number of times during the sliding of the automatic dust cover 803, this indicates that the user intends to switch the status of the projection apparatus at this time, rather than false triggering of the power key, the third status switching command may be responded at this time.

For example, after determining not to respond to the second state switching instruction, a third state switching instruction is received, and if the third position information acquired at this time still matches the second position information, it means that the projection apparatus is still in the situation shown in fig. 10, and the automatic dust cover 803 is still in the sliding process. If the threshold number of times the state switch command is received is twice, it means that the system allows the state switch command to be responded when the user presses the power key twice in succession. Therefore, when the third state switching instruction is received, the number of times of receiving the state switching instruction is determined to be two times, and the threshold of the number of times of receiving the state switching instruction has been reached, so that the projection apparatus can be controlled to perform state switching in response to the third state switching instruction.

As shown in fig. 12, a specific example of the application of the instruction response method of the present application to a projection apparatus includes the following steps:

Step S1201, receiving a power-on command input by a user by pressing a power key (power), and in response to the power-on command, controlling the power module to start working, and powering up the whole machine, the light source module generates a laser light source, and the optical machine module controls the motor to work to drive the automatic dust cover to start sliding.

After the optical machine module receives the power-on signal, the automatic dust cover is started up and slides outwards at a constant speed under the action of the rotating motor until the optical machine module detects that the signal state of the external port is 1 (namely, the automatic dust cover is detected to slide to a fully opened position), and the movement is stopped. And then controlling the light source module to generate a laser light source to start projecting the content to the projection surface. Here, since the external port is a pin detection, a signal strength threshold of the pin detection may be set, for example, if the signal strength value of the pin detection reaches the signal strength threshold, it is determined that the automatic dust cover is fully opened or fully closed.

The projection device further comprises an input module, and a user detects an input source to perform a wake-up operation and a standby operation. And when the whole machine is powered on, determining whether the processed key is a wake-up source key by using the input module, and then performing a wake-up action. The projection equipment also comprises a mute module, and the mute module is used for carrying out video and audio mute on the page before standby so as to prevent different audio and video conditions.

The mute module can be started and a timer can be started to detect whether the current screen is in a bright screen state every 100ms, and if the current screen is in the bright screen state, the mute module automatically exits. If the screen is in a screen-off state, whether the state value of the light source module is in a preset area or not can be detected, if the state value is in the preset area, the current light source module is lightened, and the mute module can automatically exit. If the components of the projection equipment do not meet the two conditions, judging whether the projection equipment is overtime, and if the projection equipment is overtime, the mute module automatically exits. It should be noted that, the projection device according to the embodiment of the present application may control the whole machine module by using the laser helper application.

In step S1202, after the automatic dust cover of the projection apparatus is fully opened (a laser signal is received), if a standby instruction input by a user by pressing a power key on the remote controller is received, the power supply of the complete machine is controlled to drive the optical machine module to send a sliding command in response to the standby instruction, and the optical machine module controls the automatic dust cover to slide slowly from outside to inside at this time and turns off the light source module. At this time, the power supply drive starts a detection module to switch on to detect the closing completion state of the automatic dust cover in real time. The power supply drive keeps the power-on state before the closing completion state of the automatic dust cover is not read, or exceeds the preset time, and the power supply drive can automatically power down and shut down. Here, if the laser signal is not received (the projection apparatus is not fully turned on), it is not necessary to respond to the standby instruction.

In the process of closing the automatic dust cover from outside to inside in step S1202, if a power-on command input by the user by pressing a power key on the remote controller is received, a first variable value may be saved in the process of closing the automatic dust cover from outside to inside in order to prevent the re-response to the power-on command. The first variable value is used to characterize whether the projection device is in the process of state switching. For example, when the state value of the first variable value is true, it indicates that standby is in progress, and when standby is ended, the state value of the first variable value is modified to false.

In step S1203, if a power-on command input by the user by pressing a power key on the remote controller is received, the state value of the first variable value is determined. If the status value is true, step S1204 is performed. If the status value is false, step S1201 is performed, i.e. the power-on process is performed again.

In step S1204, if the state value of the first variable value is true, it indicates that the automatic dust cover is still sliding, and therefore, the power-on command input by the user by pressing the power key on the remote controller is not responded.

The same and similar parts of the embodiments in this specification are referred to each other, and are not described herein.

It will be apparent to those skilled in the art that the techniques of embodiments of the present invention may be implemented in software plus a necessary general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied essentially or in parts contributing to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method of the embodiments or some parts of the embodiments of the present invention.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

1. A projection device, comprising:

a controller configured to:

2. The projection device of claim 1, wherein after not responding to the second state switching instruction, the controller is further configured to:

receiving a third state switching instruction, and acquiring third position information of the automatic dust cover from the detector, wherein the third position information is completely opened or completely closed, and the third state switching instruction is an instruction input by a user through pressing a power key;

and if the third position information is matched with the second position information, and the number of times of receiving the state switching instruction reaches a frequency threshold value, not responding to the third state switching instruction, wherein the number of times of receiving the state switching instruction represents the number of times of pressing a power key by a user after responding to the first state switching instruction.

3. The projection device of claim 2, wherein the controller is configured to:

and if the third position information is matched with the second position information and the number of times of receiving the state switching instruction does not reach a threshold number of times, responding to the third state switching instruction.

4. The projection device of claim 1, wherein the controller is further configured to:

And responding to the second state switching instruction if the second position information is not matched with the first position information.

5. The projection device of claim 4, wherein if the first state is an off state and the first position information is fully off, the controller is configured to switch the projection device from the first state to the second state in response to a first state switch instruction, the controller being configured to:

responding to the first state switching instruction, and switching the projection equipment from a power-off state to a power-on state;

the controller executes a second state switching instruction, acquires second position information of the automatic dust cover from the detector, and if the second position information is matched with the first position information, is not responsive to the second state switching instruction, and is configured to:

And receiving the second state switching instruction, acquiring second position information of the automatic dust cover from the detector to be completely closed, determining that the second position information is matched with the first position information, and not responding to the second state switching instruction.

6. The projection device of claim 5, wherein the controller executing the receive second status switch instruction, obtains second location information of the automatic dust cap from the detector, and if the second location information does not match the first location information, is configured to, in response to the second status switch instruction:

And receiving the second state switching instruction, acquiring second position information of the automatic dust cover from the detector to be completely opened, determining that the second position information is not matched with the first position information, and responding to the second state switching instruction.

7. The projection device of claim 4, wherein if the first state is an on state and the first location information is fully on, the controller is configured to switch the projection device from the first state to the second state in response to a first state switch instruction, and is configured to:

Responding to the first state switching instruction, and switching the projection equipment from a starting state to a closing state;

and receiving the second state switching instruction, acquiring second position information of the automatic dust cover from the detector to be completely opened, determining that the second position information is matched with the first position information, and not responding to the second state switching instruction.

8. The projection device of claim 7, wherein the controller executing the receive second status switch instruction, obtains second location information of the automatic dust cap from the detector, and if the second location information does not match the first location information, is configured to, in response to the second status switch instruction:

And receiving the second state switching instruction, acquiring second position information of the automatic dust cover from the detector to be completely closed, determining that the second position information is not matched with the first position information, and responding to the second state switching instruction.

9. The projection device of claim 1, wherein the controller executing the switch the projection device from the first state to the second state in response to the first state switch instruction is configured to:

Switching the projection device from a first state to a second state in response to a first state switching instruction, and creating a first variable value, wherein the first variable value is used for representing whether the projection device is in a state switching process;

The controller executes the second state switching instruction if the second position information matches the first position information, and is configured to:

If the second location information matches the first location information, the first variable value is maintained and the second state switching instruction is not responded to based on the first variable value.

10. An instruction response method is characterized by being applied to a projection device, wherein the projection device comprises a light emitting component, a detector and a controller, and the light emitting component is configured to project projection content to a projection surface; the detector is configured to generate position information from a position of an automatic dust cap, the method comprising: