A projection control method for a multi-scene projection lamp

Abstract

This invention relates to the field of ambient lighting technology, and more specifically to a projection control method for a multi-scene projection lamp. The multi-scene projection lamp includes a projection sheet assembly and an NFC reader. The projection sheet assembly includes a tray and a projection disk, with an NFC chip mounted on the projection disk. The projection control method includes: S1, acquiring identification information from the NFC chip read by the NFC reader; S2, determining the corresponding projection disk information based on the identification information and pre-stored projection disk information; S3, acquiring the corresponding scene instruction set based on the projection disk information and pre-stored scene rules, the scene instruction set including lighting control instructions and / or sound playback control instructions; S4, sending the instructions to the corresponding functional unit and executing them according to the scene instruction set. This invention uses an NFC reader to read and identify automatically matching the lighting and sound scenes corresponding to the projection disk, thereby achieving intelligent linkage between the projected content, lighting effects, and audio, enriching the projection effect.

Description

Technical Field

[0001] This invention relates to the field of ambient lighting, and more specifically to a projection control method for multi-scene projection lights. Background Technology

[0002] With the continuous improvement of modern living standards and the constant updating of people's lifestyle concepts, ambient lighting has become synonymous with fashionable living and is being accepted by more and more people.

[0003] Starry sky projectors on the market generally use projection technology to project Milky Way or starry sky patterns onto ceilings or walls. However, these starry sky lights have two main drawbacks. First, the projected patterns are usually fixed. Changing the projection effect often requires manually disassembling the light fixture and replacing the projector, which is cumbersome and inconvenient. Second, a tray (or projection panel) can usually only provide a single scene effect and cannot achieve continuous changes between multiple scenes and patterns, making it difficult to meet users' viewing needs for richer projection effects.

[0004] In addition, while existing ambient lighting fixtures can simultaneously display starry sky patterns and shooting star effects, they still suffer from problems such as limited starry sky patterns, limited projection methods, and limited shooting star effects, failing to meet users' increasingly higher demands for beautiful starry skies.

[0005] Therefore, it is urgent to propose a new technical solution to address the problem. Summary of the Invention

[0006] (a) Technical problems to be solved Based on this, the present invention provides a projection control method for multi-scene projection lights, which enriches the projection effect and improves the visual expressiveness of the projection by dynamically switching and statically superimposing the projection pattern.

[0007] (II) Technical Solution To address the aforementioned technical problems, this invention provides a projection control method for a multi-scene projection lamp, wherein the multi-scene projection lamp includes an NFC reader board and a projection sheet assembly that is detachable and replaceable from the multi-scene projection lamp; the projection sheet assembly includes a tray and a projection disk detachably mounted on the tray, and the projection disk is provided with an NFC chip; The projection control method includes the following steps: S1, obtain the identification information stored in the NFC chip read by the NFC reader; S2, based on the identification information and the pre-stored information of the projection disk, determine the projection disk information corresponding to the identification information; S3, based on the projection disk information and the pre-stored scene rules, obtain the scene instruction set corresponding to the projection disk information; The scene instruction set includes lighting control instructions and / or sound playback control instructions; S4. Based on the scenario instruction set, send the corresponding instruction to the corresponding functional unit and execute the corresponding operation.

[0008] Preferably, the lighting control command includes one or more of the following: lighting brightness, lighting color, flashing effect, and lighting duration; the sound playback control command includes one or more of the following: playing corresponding music, playing corresponding sound effects, volume, and sound playback duration.

[0009] Preferably, the multi-scene projection lamp further includes a driving component and a detection component; wherein, the driving component includes a driving motor and a driving gear that is drively connected to the output shaft of the driving motor; the projection disk includes a ring-shaped housing, a dynamic gear rotatably embedded in the housing, a dynamic projection sheet fixed to and coaxially arranged with the dynamic gear, and a static projection sheet disposed between the dynamic projection sheet and the housing and fixed to the inner surface of the housing, the dynamic gear meshing with the driving gear; the housing has a projection opening that extends vertically through it, and the position of the static projection sheet matches the position of the projection opening; the dynamic projection sheet is wound around the dynamic gear. The central axis of the projection disk has multiple independent projection patterns, which rotate around the central axis with the dynamic gear and sequentially switch to the projection port position. The dynamic gear has several detection heads spaced apart. The position and number of the detection heads match the projection patterns, and the position of the detection sensor head of the detection component matches the position of the detection head on the dynamic gear. When the dynamic gear rotates, the detection heads rotate sequentially until they coincide with the position of the detection sensor head, and the detection sensor head senses the detection head and generates a corresponding detection signal. In the projection control method, one projection disk type matches multiple pre-stored scene instruction sets. It also includes the following steps: S51, acquire the detection signal detected by the detection component; S52, in response to the detection signal, switch the scene instruction set and proceed to step S4.

[0010] Preferably, one of the detection heads is a head detection head; the signal detected by the detection component from the head detection head is a first signal, and the signal detected from other detection heads is a second signal. Step S51 further includes: S511, acquire the detection signal detected by the detection component, and determine whether the signal is the first signal; if yes, proceed to step S531; if no, proceed to step S532. S531, the current count is cleared to zero, and step S52 is executed; S531, increment the current count by 1, and execute step S52.

[0011] Preferably, the method further includes the step of: S61, Obtain the selection signal of the projection pattern input by the user; S62, Obtain the current position of the projected pattern; S63, based on the selected position of the projection pattern and the current position of the projection pattern, control the drive component to drive the dynamic gear to rotate to the target position.

[0012] Preferably, the current position of the projected pattern is determined based on the current count; the projection disk information includes the position information of the projected pattern corresponding to the head detection head and the count information corresponding to each projected pattern.

[0013] Preferably, when the projection disk is installed for the first time, the control drive component drives the dynamic gear to rotate one revolution until the detection component recognizes the first signal of the head detection head, thereby completing the counting initialization.

[0014] Preferably, the detection component is an infrared sensor and the detection head is a detection hole; or, the detection component is a Hall switch and the detection head is a magnetic induction plate.

[0015] Preferably, the detection component is an infrared sensor, the detection head is a detection hole, and the head detection head consists of two adjacent detection holes to determine whether it is the first signal based on the time interval between the detection holes being detected; or, the detection component is a Hall switch, the detection head is a magnetic induction plate, and the head detection head consists of two adjacent magnetic induction plates to determine whether it is the first signal based on the time interval between the detection plates being detected.

[0016] In a second aspect, the present invention provides a multi-scene projection lamp, comprising an NFC reader board and a projection sheet assembly, a driving assembly, and a detection assembly detachably replaceable from the multi-scene projection lamp; the projection sheet assembly includes a tray and a projection disk detachably mounted on the tray, the projection disk having an NFC chip; the driving assembly includes a driving motor and a driving gear drivenly connected to the output shaft of the driving motor; the projection disk includes a ring-shaped housing, a dynamic gear rotatably embedded in the housing, a dynamic projection sheet fixed to and coaxially arranged with the dynamic gear, and a static projection sheet disposed between the dynamic projection sheet and the housing and fixed to the inner surface of the housing, the dynamic gear meshing with the driving gear; the housing has a through projection opening, the position of the static projection sheet matching the position of the projection opening; the dynamic projection sheet has a ring-shaped housing with a through ... opening has a ring-shaped housing with a through projection opening; the dynamic projection sheet has a ring-shaped housing with a through projection opening; the dynamic projection opening has a ring-shaped housing with a through projection opening; the dynamic projection opening has a ring-shaped housing with a through projection opening; the dynamic projection opening has a ring-shaped housing with a The central axis has multiple independent projection patterns, which rotate around the central axis with the dynamic gear and sequentially switch to the projection port position. Multiple detection heads are spaced apart on the dynamic gear. The position and number of the detection heads match the projection patterns. The position of the detection sensor head of the detection component matches the position of the detection head on the dynamic gear. When the dynamic gear rotates, the detection heads rotate sequentially until they coincide with the position of the detection sensor head, which then senses the detection head and generates a corresponding detection signal. The multi-scene projection lamp also includes a memory, a controller, and a computer program stored in the memory and executable on the controller. The controller is communicatively connected to the detection component, the driving component, the NFC reader, and the light source component. When the controller executes the computer program, it implements the steps of the projection control method.

[0017] (III) Beneficial Effects Compared with the prior art, the present invention has at least the following technical effects: 1. The present invention provides a projection control method for multi-scene projection lights, which reads the identification information in the NFC chip on the projection disk through the NFC reader, automatically identifies the type of the currently installed projection disk, and matches the corresponding scene instruction set (including light control instructions and / or sound playback control instructions) according to the pre-stored scene rules, and finally controls the functional unit to perform the corresponding operation.

[0018] 2. The present invention provides a projection control method for multi-scene projection lamps, which realizes intelligent linkage between the projection disk and the light and sound. Users only need to change the projection disk to automatically switch the corresponding projection pattern, lighting effect and background music or sound effect without manual settings, which greatly improves the convenience and immersion of use.

[0019] 3. The present invention provides a projection lamp for multiple scenes. Since the projection panel is detachable and replaceable, it supports a variety of theme scenes, meets the diverse atmosphere creation needs of users, and solves the problems of single function and outdated interaction method of traditional projection lamps. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a structural schematic diagram of a multi-scene projection lamp provided by the present invention; Figure 2 This is a structural schematic diagram of a multi-scene projection lamp provided by the present invention from another perspective; Figure 3 This is a schematic diagram of the projection sheet assembly structure of the multi-scene projection lamp provided by the present invention; Figure 4 This is an exploded view of the projection sheet assembly and detection assembly of the multi-scene projection lamp provided by the present invention; Figure 5 This is a schematic diagram of the projection sheet assembly and detection assembly of the multi-scene projection lamp provided by the present invention; Figure 6 This is a structural assembly diagram of the tray and projection disk in the projection panel assembly provided by the present invention; Figure 7 This is a structural assembly diagram of the dynamic gear inside the tray of the slide assembly; Figure 8 This is a schematic diagram of the housing and dynamic gears of the projection disc assembly; Figure 9 It is a schematic diagram of the projection pattern of the dynamic projection sheet inside the dynamic gear; Figure 10 This is a flowchart of the projection control method provided by the present invention; Figure 11 This is a sub-flowchart of step 5 of the projection control method provided by the present invention; Figure 12 This is a sub-flowchart of step 51 of the projection control method provided by the present invention; Figure 13 This is a sub-flowchart of step 6 of the projection control method provided by the present invention; Figure 14 This is a functional module diagram of the multi-scene projection lamp provided by the present invention.

[0021] Explanation of the labels for the main components in the diagram: 100. Multi-scene projection light; 10. Drive assembly; 11. Drive motor; 12. Drive gear; 20. Slide assembly; 21. Tray; 22. Projection plate; 221. Housing; 222. Dynamic gear; 223. Dynamic slide; 224. Static slide; 225. Projected pattern; 23. NFC chip; 24. NFC reader; 25. Detection head; 26. Projection port; 30. Light source assembly; 40. Lens assembly; 50. Detection assembly. Detailed Implementation

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings; many specific details are set forth in the following description in order to provide a full understanding of the present invention; based on the embodiments of the present invention, those skilled in the art can make similar improvements without departing from the spirit of the present invention, but cannot make all other embodiments obtained without creative effort, therefore the present invention is not limited to the specific embodiments disclosed below.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components; and they can also refer to a "transmission connection," that is, a power connection through various suitable methods such as belt drive, gear drive, or sprocket drive. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] Please see Figures 1 to 14This invention provides a projection control method for a multi-scene projection lamp 100. The multi-scene projection lamp 100 includes an NFC reading board 24 and a projection sheet assembly 20, a driving assembly 10, a detection assembly 50, a light source assembly 30, and a lens assembly 40 that are detachable and replaceable from the multi-scene projection lamp 100. The projection sheet assembly 20 includes a tray 21 and a projection disk 22 detachably mounted on the tray 21. The projection disk 22 is provided with an NFC chip 23. The driving assembly 10 includes a driving motor 11 and a driving gear 12 that is drively connected to the output shaft of the driving motor 11. The projection disk 22 includes a ring-shaped housing 221, a dynamic gear 222 rotatably embedded in the housing 221, a dynamic projection sheet 223 fixed to and coaxially arranged with the dynamic gear 222, and a lens assembly 40. A static projection sheet 224 is fixed between the dynamic projection sheet 223 and the housing 221 and to the inner surface of the housing 221. The dynamic gear 222 meshes with the drive gear 12. A projection port 26 that runs vertically through the housing 221 is provided. The position of the static projection sheet 224 matches the position of the projection port 26. Multiple independent projection patterns 225 are provided on the dynamic projection sheet 223 around the central axis of the dynamic gear 222. The projection patterns 225 follow the rotation of the dynamic gear 222 around the central axis and switch to the position of the projection port 26 in sequence. The light path of the light source assembly 30 passes through the projection port 26 and is rotated by the dynamic gear 222 to the position of the projection pattern 225 at the projection port 26. After being superimposed on the static projection sheet 224, the light is finally projected to the outside of the multi-scene projection lamp 100 through the lens assembly 40.

[0025] Furthermore, notches (not shown in the figure) are respectively opened on the side of the housing 221, and part of the rack of the dynamic gear 222 is exposed to the outside of the housing 221 through the notch so that the dynamic gear 222 can mesh with the drive gear 12.

[0026] A plurality of detection heads 25 are spaced apart on the dynamic gear 222; the position and number of the detection heads 25 match the projection pattern 225, and the position of the detection sensor head (not shown) on the detection component 50 matches the position of the detection head 25 on the dynamic gear 222. When the dynamic gear 222 rotates, the detection heads 25 rotate sequentially until they coincide with the position of the detection sensor head, and the detection sensor head senses the detection head 25 and generates a corresponding detection signal (not shown); the multi-scene projection lamp 100 also includes a memory (not shown), a controller (not shown), and a computer program (not shown) stored in the memory and run on the controller. The controller is communicatively connected to the detection component 50, the drive component 10, the NFC reader 24, and the light source component 30; the controller executes the computer program to implement the steps of the projection control method.

[0027] In this embodiment, by setting the driving component 10, and simultaneously setting the projection sheet component 20, the light source component 30, and the lens component 40 to be on the same optical axis, the different projection patterns 225 rotating on the projection sheet 223 are superimposed on the static projection sheet 224, thereby realizing the switching of multiple scenes and multiple pattern projections. This not only enriches the projection effect but also improves the visual expressiveness of the projection, thus achieving a dual projection effect of dynamic switching and static superposition of the projection patterns 225, with a compact structure.

[0028] Furthermore, the tray 21 and the projection disk 22 are detachable and replaceable, allowing for the replacement and adaptation of multiple different projection disks 22; this application uses the drive component 10 to drive the dynamic gear 222 to rotate the dynamic projection sheet 223.

[0029] It should be further explained that the dynamic projection sheet 223 is attached to or embedded on the upper surface of the dynamic gear 222, and the two are coaxial and rotate synchronously; the static projection sheet 224 is fixed on the inner surface of the housing 221, located between the dynamic projection sheet 223 and the bottom of the housing 221, and the static projection sheet 224 is provided with a fixed pattern area corresponding to the position of the projection port 26.

[0030] When the dynamic gear 222 rotates, different projection patterns 225 on the dynamic projection sheet 223 pass over the projection port 26 in sequence and are superimposed on the projection pattern of the static projection sheet 224 in the light path, thereby realizing continuous projection of multiple scenes and multiple patterns, which not only enriches the projection effect, but also improves the visual expressiveness of the projection.

[0031] When the NFC reader 24 is inserted into the projection disk 22, the NFC reader 24 automatically reads the stored information of the NFC chip 23 and sends the data to the controller. The controller automatically adjusts the speed of the drive motor 11 and the matching logic of the detection component 50, thereby realizing that the NFC reader 24 is plug-and-play and automatically identifies without the need for manual settings by the user, which greatly improves the user's intelligent experience.

[0032] Specifically, its projection control method includes the following steps: S1, Obtain the identification information stored in the NFC chip 23 read by the NFC reader 24; S2, based on the identification information (not shown in the figure) and the information of the pre-stored projection disk 22, determine the corresponding projection disk information (not shown in the figure) in the identification information. S3, based on the projection disk information and the pre-stored scene rules (not shown in the figure), obtain the scene instruction set corresponding to the projection disk information (not shown in the figure); The scene instruction set includes lighting control instructions (not shown in the figure) and / or sound playback control instructions (not shown in the figure); S4 sends the corresponding instructions to the appropriate functional units based on the scenario instruction set and executes the corresponding operations.

[0033] In this embodiment, the memory in the multi-scene projection lamp 100 pre-stores the projection sheet information of the projection disk 22 and the corresponding identification information stored in the NFC chip 23. For example, the NFC chip 23 is coded as 00001, and its corresponding projection disk information is the twelve constellations projection, with 12 projection patterns 225; the NFC chip 23 is coded as 00002, and its corresponding projection disk information is the Five Sacred Mountains projection, with 5 projection patterns 225.

[0034] Furthermore, the lighting control commands include one or more combinations of light brightness, light color, flashing effect, and lighting duration; the sound playback control commands include one or more combinations of playing corresponding music, playing corresponding sound effects, volume, and sound playback duration.

[0035] Specifically, the scene instruction set acquired in step S3 may include, for example, a "automatic cruise" control instruction. During the execution of step S4, the controller intermittently (e.g., every 30 seconds) sends a start pulse to the drive circuit of the drive motor 11. After receiving the pulse, the drive motor 11 drives the dynamic gear 222 to rotate by a fixed angle (e.g., 45 degrees) through the drive gear 12, so that the next projection pattern 225 on the dynamic projection sheet 223 is precisely switched to the projection port 26 position. At the same time, the light path of the light source assembly 30 passes through the projection port 26 and is superimposed sequentially with the projection pattern 225 that has been rotated to the projection port 26 position and the pattern on the stationary static projection sheet 224, and finally the dynamically changing composite projection effect is projected through the lens assembly 40.

[0036] In step S4, the controller sends the lighting control command and the sound playback control command to the light source component 30, the lens component 40 and the audio amplifier component (not shown in the figure) respectively, thereby realizing the coordinated control of light and sound.

[0037] Specifically, the projection screen information includes the twelve constellations, the Five Sacred Mountains, and seascapes. When the projection screen information is the twelve constellations, the light control command corresponds to a deep blue gradient light, and the sound playback control command corresponds to playing symphony music. When the projection screen information is the Five Sacred Mountains, the light control command corresponds to a bright green light, and the sound playback control command corresponds to playing the sound of natural mountain streams. When the projection screen information is a seascape, the light control command corresponds to a light blue breathing light, and the sound playback control command corresponds to playing the sound of ocean waves.

[0038] In this embodiment, by combining and controlling various parameters such as light brightness, color, flashing effect, lighting duration, and sound playback content, volume, and playback duration, the present invention enables the multi-scene projection lamp 100 to leap from single visual output to multi-sensory immersive experience.

[0039] The lighting effects are no longer just illumination; they can dynamically change based on the pre-stored projection disk information and the corresponding identification information stored in the NFC chip 23, thereby enhancing the atmosphere of the projection theme and enriching the projection effect.

[0040] In one embodiment, one of the detection heads of the detection head 25 is a head detection head (not shown in the figure), and the signal detected by the detection component 50 of the head detection head is a first signal, while the signal detected by other detection heads is a second signal.

[0041] Specifically, the projection control method also includes the following steps: S51, acquire the detection signal detected by the detection component 50; S52, respond to the detection signal, switch the scene instruction set, and proceed to step S4.

[0042] In this embodiment, by setting a detection head 25 on the dynamic gear 222 that corresponds one-to-one with the projection pattern 225, and using the detection component 50 to sense the rotation position in real time, when the driving component 10 drives the dynamic gear 222 to rotate, a detection head 25 passes under the detection sensing head, and the detection component 50 sends a detection signal (a second signal or a first signal). After the controller receives the detection signal, it automatically switches the scene instruction set, thereby realizing the synchronous switching of the projection pattern 225 and the lighting and sound scenes.

[0043] Specifically, a projection disk 22 has multiple pre-stored scene instruction sets. The specific scene instruction set switching method can be that the dynamic gear 222 rotates sequentially, or it can be randomly switched, or it can be switched according to the one-to-one correspondence between the projection pattern 225 and the scene instruction set.

[0044] Furthermore, step S51 also includes: S511, acquire the detection signal detected by the detection component 50, and determine whether the signal is the first signal; If yes, proceed to step S531; if no, proceed to step S532. S531, the current count is cleared to zero, and step S52 is executed; S531, increment the current count by 1, and proceed to step S52.

[0045] In this embodiment, for ease of distinction, the head detection head can be composed of two adjacent detection heads; the signal generated by the detection component 50 when it detects the head detection head with this special structure is defined as the first signal (e.g., the interval between two pulses is extremely short, less than 5ms), while the signal generated by detecting other individual detection heads is defined as the second signal (e.g., a single pulse with an interval greater than 50ms).

[0046] Specifically, whenever a specific projected pattern 225 is rotated to the projection port 26, its matching background music is immediately activated, thus forming a "one Figure 1 The immersive experience of "scene and image change" allows users to experience the natural flow of the projected pattern 225, which not only enriches the projection effect of the multi-scene projector lamp 100 but also enhances the visual expressiveness of the projection.

[0047] Furthermore, the projection control method also includes the following steps: S61, obtain the selection signal of the projection pattern 225 input by the user; S62, obtain the position of the current projected pattern 225; S63, based on the position of the selected projection pattern 225 and the current position of the projection pattern 225, control the drive assembly 10 to drive the dynamic gear 222 to rotate to the target position.

[0048] Based on step S51, this projection control method adds an interactive control method that allows the user to actively select a specific projection pattern.

[0049] Furthermore, the position of the current projection pattern 225 is determined based on the current count; the projection disk information includes the position information of the projection pattern 225 corresponding to the head detection head and the count information corresponding to each projection pattern 225.

[0050] Based on the identification information on the NFC chip 23, the number of projected patterns 225 on the projection disk 22 is known, and the angle information between two adjacent projected patterns 225 can be determined.

[0051] It should be noted that when the NFC chip 23 is encoded as 00001, and its corresponding projection disk information is the twelve constellations projection, the number of projection patterns 225 is 12. The projection pattern 225 corresponding to the head detection head is Aries. The dynamic gear 222 can switch to the next constellation projection pattern 225 every 30° rotation.

[0052] When the NFC chip 23 is encoded as 00002, and its corresponding projection disk information is the projection of the Five Famous Mountains, the number of projection patterns 225 is 5. The projection pattern 225 corresponding to the head detection head is Mount Hua. The dynamic gear 222 can switch to the projection pattern 225 of the next famous mountain every 72° rotation.

[0053] When the NFC chip 23 is encoded as 00003, and its corresponding projection disk information is a seascape projection, the number of projection patterns 225 is 8. The projection pattern 225 corresponding to the head detection head is seascape 1. The dynamic gear 222 can switch to the next seascape projection pattern 225 every 45° rotation.

[0054] In step S62, the controller determines which specific pattern is being projected by reading the value of the "current count" and then querying the above count information (for example, when the total count is 5, the current count of 2 corresponds to the "Nanyue Hengshan" pattern).

[0055] In step S63, the controller searches for the counting information in reverse according to the target pattern name selected by the user (such as "Zhongyue Songshan"), obtains the target count (such as 5), and then performs rotation control.

[0056] In one embodiment, since the zero point position corresponding to the head detection head is clearly recorded, when the projection disk 22 is installed for the first time, the controller controls the drive component 10 to drive the dynamic gear 222 to rotate one revolution until the detection component 50 recognizes the first signal of the head detection head, thereby completing the counting initialization.

[0057] Specifically, when the control unit of the multi-scene projection lamp 100 detects a new projection disk 22 (whose NFC chip identification information is not in the system cache, or has been powered on again after a power outage) being installed via the NFC reader 24, the initialization process is automatically triggered, as follows: 1. The control unit sends a continuous rotation command to the drive motor 11, driving the dynamic gear 222 to start rotating.

[0058] 2. The system ignores any second signal detected in the initial stage because the location of the zero point is unknown at this time.

[0059] 3. The dynamic gear 222 continues to rotate until the detection component 50 first captures the first signal from the head detection head (e.g., two adjacent pulses).

[0060] 4. Upon receiving the first signal, the control unit immediately resets the "current count" to zero and records the rotation position of the dynamic gear 222 at this time as the origin.

[0061] 5. Then, the controller can choose to let the dynamic gear 222 continue to rotate and continue to detect the subsequent second signal to verify whether all detection heads 25 are working properly.

[0062] 6. After completing one rotation (the first signal is detected again), the system confirms that the counting system has been successfully initialized and enters normal working mode.

[0063] In one embodiment, the detection component 50 is an infrared sensor, and the detection head 25 is a detection hole. The head detection head consists of two adjacent detection holes, which are used to determine whether it is a first signal based on the time interval between the detection holes being detected.

[0064] Specifically, the center distance between these two adjacent detection holes is very small (e.g., 1 mm), resulting in an extremely short time interval (e.g., 2 ms) between the two detection holes continuously passing through the infrared phototransistor when the dynamic gear 222 is at normal rotational speed. Other detection holes, however, are more distant, with longer time intervals (e.g., 20 ms). At this point, after detecting the first pulse, the control unit starts a short timer (e.g., 5 ms). If a second pulse from the same sensor is detected again within 5 ms, it is determined that the first signal (head detection head signal) has been received; otherwise, it is determined to be the second signal (other detection head signals).

[0065] In another embodiment, the detection component 50 is a Hall switch, the detection head 25 is a magnetic sensor, and the head detection head consists of two adjacent magnetic sensors (not shown) to determine whether it is the first signal based on the time interval between the detection of the magnetic sensors.

[0066] Specifically, when two adjacent magnetic induction plates rotate past the Hall switch, they generate two pulse signals with a very short interval. The control unit determines the signal by measuring the pulse interval time. If the interval is less than a preset threshold (e.g., 3ms), it is identified as the first signal; otherwise, it is identified as the second signal.

[0067] To further increase reliability, two adjacent magnetic plates can be set to opposite magnetic polarities (one with the N pole facing up and the other with the S pole facing up). This way, the Hall switch will generate two pulses, one positive and one negative, forming a unique feature code to ensure the accuracy of its judgment.

[0068] Obviously, the above embodiments are merely examples for the detailed description of the present invention and are not intended to limit the implementation. The present invention can be implemented in many other ways different from those described herein. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make other modifications and variations based on the above description, and such modifications and variations still fall within the protection scope defined by the appended claims.

Claims

1. A projection control method for multi-scene projection lights, characterized in that, The multi-scene projection lamp includes an NFC reader and a projection sheet assembly that can be separated and replaced from the multi-scene projection lamp; The projection panel assembly includes a tray and a projection disk detachably mounted on the tray, the projection disk having an NFC chip. The projection control method includes the following steps: S1, obtain the identification information stored in the NFC chip read by the NFC reader; S2, based on the identification information and the pre-stored information of the projection disk, determine the corresponding projection disk information in the identification information; S3, based on the projection disk information and the pre-stored scene rules, obtain the scene instruction set corresponding to the projection disk information; The scene instruction set includes lighting control instructions and / or sound playback control instructions; S4. Based on the scenario instruction set, send the corresponding instruction to the corresponding functional unit and execute the corresponding operation.

2. The projection control method for multi-scene projection lights according to claim 1, characterized in that, The lighting control commands include one or more of the following: light brightness, light color, flashing effect, and lighting duration; The sound playback control commands include playing the corresponding music, playing the corresponding sound effects, volume level, and sound playback duration, or a combination of these.

3. The projection control method for multi-scene projection lights according to claim 1, characterized in that, The multi-scene projection light also includes a driving component and a detection component; wherein... The drive assembly includes a drive motor and a drive gear that is drively connected to the output shaft of the drive motor. The projection disk includes a ring-shaped housing, a dynamic gear rotatably embedded in the housing, a dynamic projection sheet fixed to and coaxially arranged with the dynamic gear, and a static projection sheet disposed between the dynamic projection sheet and the housing and fixed to the inner surface of the housing. The dynamic gear meshes with the drive gear. The housing has a through projection opening, and the position of the static projection sheet matches the position of the projection opening. The dynamic projection sheet has multiple independent projection patterns arranged around the central axis of the dynamic gear. The projection patterns follow the rotation of the dynamic gear around the central axis and switch sequentially to the projection port position. The dynamic gear is provided with several detection heads spaced apart; The position and number of the detection heads match the projected pattern, and the position of the detection sensing head of the detection component matches the position of the detection head on the dynamic gear. When the dynamic gear rotates, the detection head rotates sequentially until it coincides with the position of the detection sensing head, and the detection sensing head senses the detection head and generates a corresponding detection signal. In the projection control method, a projection disk type is matched with multiple pre-stored scene instruction sets, and it further includes the following steps: S51, acquire the detection signal detected by the detection component; S52, in response to the detection signal, switch the scene instruction set and proceed to step S4.

4. The projection control method for multi-scene projection lights according to claim 3, characterized in that, One of the detection heads is a head detection head; The signal detected by the detection component from the head detection head is a first signal, and the detection of other detection heads is a second signal. Step S51 further includes: S511, acquire the detection signal detected by the detection component, and determine whether the signal is the first signal; If yes, proceed to step S531; if no, proceed to step S532. S531, the current count is cleared to zero, and step S52 is executed; S531, increment the current count by 1, and execute step S52.

5. The projection control method for multi-scene projection lights according to claim 4, characterized in that, It also includes the following steps: S61, Obtain the selection signal of the projection pattern input by the user; S62, Obtain the current position of the projected pattern; S63, based on the selected position of the projection pattern and the current position of the projection pattern, control the drive component to drive the dynamic gear to rotate to the target position.

6. The projection control method for multi-scene projection lights according to claim 5, characterized in that, The current position of the projected pattern is determined based on the current count; The projection disk information includes the position information of the projection pattern corresponding to the head detection head and the count information corresponding to each projection pattern.

7. The projection control method for multi-scene projection lights according to claim 6, characterized in that, When the projection disk is installed for the first time, the control drive component drives the dynamic gear to rotate one revolution until the detection component recognizes the first signal of the head detection head, thereby completing the counting initialization.

8. The projection control method for multi-scene projection lights according to claim 4, characterized in that, The detection component is an infrared sensor, and the detection head is a detection hole; Alternatively, the detection component may be a Hall switch, and the detection head may be a magnetic induction plate.

9. The projection control method for multi-scene projection lights according to claim 8, characterized in that, The detection component is an infrared sensor, the detection head is a detection hole, and the head detection head consists of two adjacent detection holes, so as to determine whether it is the first signal based on the time interval between the detection holes being detected; Alternatively, the detection component may be a Hall switch, the detection head may be a magnetic induction plate, and the head detection head may consist of two adjacent magnetic induction plates, so as to determine whether it is the first signal based on the time interval between the detection of the magnetic induction plates.

10. A multi-scene projection lamp, characterized in that, This includes an NFC reader and a detachable and replaceable projection panel assembly, driver assembly, and detection assembly, which are separate from the multi-scene projection lamp; wherein, The projection panel assembly includes a tray and a projection disk detachably mounted on the tray, the projection disk having an NFC chip. The drive assembly includes a drive motor and a drive gear that is drively connected to the output shaft of the drive motor. The projection disk includes a ring-shaped housing, a dynamic gear rotatably embedded in the housing, a dynamic projection sheet fixed to and coaxially arranged with the dynamic gear, and a static projection sheet disposed between the dynamic projection sheet and the housing and fixed to the inner surface of the housing. The dynamic gear meshes with the drive gear. The housing has a through projection opening, and the position of the static projection sheet matches the position of the projection opening. The dynamic projection sheet has multiple independent projection patterns arranged around the central axis of the dynamic gear. The projection patterns follow the rotation of the dynamic gear around the central axis and switch sequentially to the projection port position. The dynamic gear is provided with several detection heads spaced apart; The position and number of the detection heads match the projected pattern, and the position of the detection sensing head of the detection component matches the position of the detection head on the dynamic gear. When the dynamic gear rotates, the detection head rotates sequentially until it coincides with the position of the detection sensing head, and the detection sensing head senses the detection head and generates a corresponding detection signal. The multi-scene projection lamp also includes a memory, a controller, and a computer program stored in the memory and executable on the controller. The controller is communicatively connected to the detection component, the driving component, the NFC reader, and the light source component. When the controller executes the computer program, it implements the steps of the projection control method as described in any one of claims 1 to 9.

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