Projection lamp system capable of automatically switching patterns and working method

Abstract

The invention belongs to the technical field of safety warning, and particularly relates to a projection lamp system capable of automatically switching patterns and a working method. The projection lamp system comprises an optical projection display module, a heat dissipation module, an intelligent detection module and a mechanical transmission control module; the optical projection display module comprises a highlight lamp sheet, a projection lamp sheet frame and a lens assembly, and a plurality of projection lamp sheets corresponding to different projection modes are arranged on the projection lamp sheet frame and are switched and fixed through a color changing mechanism; the heat dissipation module comprises a composite heat dissipation structure integrated around the highlight lamp sheet; the intelligent detection module is used for monitoring a target passing through the dynamic detection area in real time; the mechanical transmission control module is used for driving the color changing mechanism to switch the projection mode. According to the multifunctional projection lamp system, pedestrians and transverse passing vehicles can be sensed in real time, warning projection patterns and warnings are automatically switched, the pedestrians and the vehicles are reminded to pay attention to safety in a projection mode, and potential safety hazards of pedestrian path intersections in a production factory are effectively reduced.

Description

Technical Field

[0001] This invention belongs to the field of safety warning technology, and in particular relates to a projection lamp system and its working method that can automatically switch patterns. Background Technology

[0002] In modern manufacturing plants, personnel and logistics vehicles frequently cross the road, making pedestrian safety management at intersections crucial. To ensure pedestrian safety, current technology typically uses projection lights to project zebra crossing markings onto the ground at intersections, guiding pedestrians to pay attention to safety through visual cues. However, current projection light technology has significant limitations:

[0003] Firstly, the projected content is only a static zebra crossing pattern, which cannot sense and provide real-time warnings for vehicles crossing laterally.

[0004] Secondly, the projected pattern is monotonous and cannot automatically switch between patterns and warning messages.

[0005] Third, it lacks environmental adaptive adjustment capabilities, and its projection effect is easily affected by harsh conditions such as strong light and dust.

[0006] The above-mentioned defects make it difficult for existing projection devices to meet the actual needs of efficient safety warnings in industrial scenarios, and there is an urgent need to develop an intelligent projection lamp system with multi-dimensional early warning functions.

[0007] Therefore, it is necessary to develop a multi-functional projection light system that can sense pedestrians and vehicles passing laterally in real time, automatically switch between warning projection patterns and warning messages, and remind pedestrians and vehicles to pay attention to safety through projection, so as to effectively reduce safety hazards at pedestrian crossings in production plants. Summary of the Invention

[0008] This invention enables real-time sensing of vehicle dynamics in pedestrian walkways within factories and automatic switching of warning content, thereby improving pedestrian safety in industrial settings and reducing the occurrence of safety accidents.

[0009] The technical solution adopted by the present invention to solve this problem is as follows:

[0010] A projection lamp system capable of automatically switching patterns includes an optical projection display module, a heat dissipation module, an intelligent detection module, and a mechanical transmission control module, wherein:

[0011] An optical projection display module includes a high-brightness light sheet, a projection light sheet holder, and a lens assembly. The projection light sheet holder is provided with several projection light sheets corresponding to different projection modes, which are switched and fixed by a color-changing mechanism. The optical projection display module is used to clearly project warning information in one of the projection modes onto a designated projection area.

[0012] A heat dissipation module, comprising a composite heat dissipation structure integrated around a high-brightness LED panel;

[0013] The intelligent detection module is used to monitor targets passing through the dynamic detection area in real time.

[0014] The mechanical transmission control module drives the color-changing mechanism to switch projection modes. When the intelligent detection module does not detect a target, the system is in an initial standby state, and the optical projection display module clearly projects the warning information in the initial projection mode onto the designated projection area. When the intelligent detection module detects a target, the mechanical transmission control module drives the switching of the projection mode, and the optical projection display module clearly projects the warning information in the switched projection mode onto the designated projection area. The system continues until the target leaves the dynamic detection area, at which point it resets to the initial standby state and enters a new round of detection.

[0015] In the above technical solution, the composite heat dissipation structure is disposed above the high-brightness lamp sheet, and the composite heat dissipation structure includes a heat dissipation aluminum fin, a heat dissipation fan, and a heat dissipation copper plate.

[0016] The above technical solution also includes a mounting base, which is disposed at the upper end of the heat sink aluminum fin.

[0017] In the above technical solution, the high-brightness lamp sheet is disposed inside the anti-glare cover, and the anti-glare cover is disposed at the lower end of the heat dissipation aluminum sheet.

[0018] In the above technical solution, the projection lamp holder and the color-changing mechanism are arranged inside the color-changing mechanism housing. The color-changing mechanism housing is fixed to the bottom of the heat dissipation aluminum fin by corner bracket connectors. A lens housing is also provided on the outside of the color-changing mechanism housing.

[0019] In the above technical solution, the projection lamp holder is a color-changing lamp holder, the projection lamp is slidably installed in the housing of the color-changing mechanism, and the color-changing mechanism includes a rack disposed on one side of the projection lamp holder.

[0020] In the above technical solution, the lens assembly includes a condenser lens for focusing or controlling light and a lens for achieving clear image formation and beam control. The condenser lens is fixed inside the lens housing by a lens mounting base.

[0021] In the above technical solution, the light emitted by the high-brightness light sheet passes sequentially through the projection light sheet, the focusing lens, and the lens.

[0022] In the above technical solution, the mechanical transmission control module includes a solid-state protection relay and a graduated motor. The solid-state protection relay is disposed on one side of the heat dissipation copper plate, and the graduated motor is disposed on one side of the lens housing. The motor shaft of the graduated motor is connected to a gear set for transmission. The gear set includes a drive gear and a rotating gear, and the drive gear meshes with a rack.

[0023] In the above technical solution, the intelligent detection module includes a laser detection switch, which is disposed on one side of the lens housing.

[0024] In the above technical solution, the target is a vehicle, an object, a pedestrian, etc.

[0025] The second objective of this invention is to provide a method for operating a projection lamp system capable of automatically switching patterns, wherein the projection lamp system switches between an initial state and an operating state, wherein:

[0026] Original state

[0027] When the laser detection switch in the intelligent detection module fails to detect a target, the projection lamp system is in an initial standby state. At this time:

[0028] The rack and pinion mechanism and the projection light holder in the color-changing mechanism remain in their original positions;

[0029] The projection sheet with a zebra stripe pattern on the projection sheet holder is located at the initial projection position;

[0030] The lens clearly projects the standard zebra crossing pattern onto the designated projection area as a reference marker.

[0031] Work status

[0032] When the laser detection switch in the intelligent detection module detects that a target has entered the dynamic detection area, the projection lamp system is activated according to the following logic:

[0033] S1. The gradual motor is activated immediately, driving the rotating gear and the drive gear to rotate through the transmission mechanism;

[0034] S2. The gear set drives the rack to move laterally, pushing the projection lamp holder to switch to other projection modes;

[0035] S3. The lens synchronously switches the projected content, changing from a standard zebra crossing to a warning sign to enhance visual reminders;

[0036] Once the target leaves the dynamic detection area, the projection system automatically resets to its original state, resumes zebra crossing projection, and enters a new round of standby detection.

[0037] Combining all the above technical solutions, the advantages and positive effects of this invention are as follows:

[0038] 1. Precise and intelligent early warning: The adjustable detection area constructed by the intelligent detection module can accurately capture vehicles, objects and pedestrians approaching from the side with a radius of 4M and a fan-shaped range of 120°, effectively avoiding missed detections and misjudgments, providing a reliable basis for subsequent warnings, realizing the timeliness and accuracy of early warning response, and significantly improving the safety protection capabilities in traffic scenarios.

[0039] 2. Rapid Warning and Guidance: The linkage between the solid-state relay and the mechanical transmission module enables the projection switch to quickly switch to the warning display position after detecting a target, projecting a "No Entry" sign to remind people to stop. After the vehicle passes, it can promptly reset to project the zebra crossing sign to guide traffic, achieving a seamless switch between warning and guidance, effectively regulating traffic order.

[0040] 3. Stable and reliable operation: The composite heat dissipation system, consisting of heat pipes, heat sinks, and cooling fans, effectively solves the heat generation problem when the LED chips are working with strong light sources, maintains stable internal temperature, extends the lifespan of LED chips and other components, ensures stable operation of the projection lamp for a long time, and reduces equipment maintenance costs and frequency.

[0041] 4. Clear visual cues: With the help of convex / concave lens groups for professional optical processing of the light source, the projected content is clear and the boundaries are distinct. Whether it is a "No Entry" warning or a zebra crossing sign, it can be presented with high brightness and high contrast. It can provide clear and eye-catching visual cues to the target object under different ambient light conditions, improving the efficiency of information transmission.

[0042] 5. Flexible scene adaptation: The adjustable detection range design allows the projection light to be flexibly adapted to various complex scenes such as urban roads, community entrances and exits, school surroundings, and pedestrian passages in factories, meeting the safety warning and guidance needs under different road widths and different pedestrian and vehicle flow densities, and has wide applicability and promotion value. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0044] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0045] Figure 3 This is the front view of the present invention;

[0046] Figure 4 This is the left view of the present invention;

[0047] Figure 5 This is the right view of the present invention;

[0048] Figure 6 This is an exploded view of the present invention.

[0049] In the diagram: 1-Mounting base; 2-Heat sink aluminum fin; 3-Cooling fan; 4-Color changing mechanism housing; 5-Condensing lens; 6-Housing; 7-Solid-state protection relay; 8-Copper heat sink plate; 9-Corner code connector; 10-High-brightness light sheet; 11-Anti-diffraction cover; 12-Color changing light sheet holder; 13-Rack and pinion; 14-Drive gear; 15-Lens mounting base; 16-Rotating gear; 17-Laser detection switch; 18-Gradual-color motor; 19-Lens. Detailed Implementation

[0050] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, 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 to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0051] The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0052] Example 1:

[0053] A projection lamp system capable of automatically switching patterns includes:

[0054] An optical projection display module, which serves as a projection unit, includes a high-brightness light sheet, a projection light sheet holder, and a lens assembly. The projection light sheet holder is equipped with several projection light sheets corresponding to different projection modes, which are switched and fixed by a color-changing mechanism. The optical projection display module is used to clearly project warning information in one of the projection modes onto a designated projection area.

[0055] A heat dissipation module, comprising a composite heat dissipation structure integrated around a high-brightness LED panel;

[0056] The intelligent detection module, as a target detection unit, is used to monitor targets passing through the dynamic detection area in real time. The targets include vehicles, objects, pedestrians, etc.

[0057] The mechanical transmission control module, acting as a control unit, drives the color-changing mechanism to switch projection modes. When the intelligent detection module does not detect a target, the system is in an initial standby state, and the optical projection display module clearly projects the warning information in the initial projection mode onto the designated projection area. When the intelligent detection module detects a target, the mechanical transmission control module drives the switching of the projection mode, and the optical projection display module clearly projects the warning information in the switched projection mode onto the designated projection area. The system continues until the target leaves the dynamic detection area, at which point it resets to the initial standby state and enters a new round of detection.

[0058] In this embodiment, an industrial-grade intelligent pedestrian safety early warning system is constructed by deeply integrating and linking the target detection unit, control unit, and projection unit, and combining them with a heat dissipation module, thus providing safety assurance.

[0059] like Figure 1-6 The functions of the diagrams shown are explained below:

[0060] Mounting base 1: Install it at the location where it needs to be suspended to provide a stable support platform, avoid shaking or displacement, and ensure that the object remains stable during use.

[0061] Heat sink 2: Heat dissipation element, accelerates heat conduction and diffusion, increases heat dissipation area, enhances air convection, protects core components, and maintains stable equipment performance.

[0062] Cooling fan 3: It can sense changes in device temperature and automatically start the cooling mode when the device temperature reaches 40 degrees or above.

[0063] 4. Color-changing mechanism housing: Protective housing for the color-changing light sheet device.

[0064] Condensing Lens 5: An optical element that uses the principle of light refraction to converge or control light rays.

[0065] Lens protective housing 6: Protects the lens.

[0066] Solid-state protection relay 7: Protection circuit architecture, overcurrent protection: prevents abnormal current from damaging the load, short circuit protection: disconnects the dangerous connection between the power supply and the load, overvoltage protection: protects against voltage surge impact, overheat protection: prevents the device temperature from exceeding the limit.

[0067] Copper heat dissipation plate 8: Utilizing the high thermal conductivity of copper (approximately 401 W / m·K), it quickly conducts and diffuses the heat from heat-generating components (such as chips and power devices) to a larger area. Combined with heat dissipation fins or fans, it accelerates heat dissipation and prevents equipment from degrading or being damaged due to overheating.

[0068] Corner bracket connector 9: Reinforced and positioned connection 4 - Color-changing mechanism housing.

[0069] High-brightness light sheet 10: Enhances light focusing and projection effects.

[0070] Anti-glare cover 11: Controls light diffusion and reduces interference.

[0071] Color-changing light box holder 12: Allows for flexible switching and fixing of colored light box effects.

[0072] Rack 13: Enables the conversion between rotational and linear motion.

[0073] Drive gear 14: Transmits power and changes motion state.

[0074] Lens mounting base 15: Precisely positions and stably supports the lens.

[0075] Rotary gear 16: Enables power transmission and motion characteristic conversion.

[0076] Laser detection switch 17: Uses a laser beam to achieve non-contact object detection and status control.

[0077] Gradient motor 18: converts electrical pulse signals into precise mechanical angular or linear displacement.

[0078] Lens 19: It uses the principle of optical refraction / reflection to converge or diverge light, thereby achieving clear image formation and beam control.

[0079] Furthermore, in this embodiment, the composite heat dissipation structure can be positioned above the high-brightness lamp sheet 10. This composite heat dissipation structure includes a heat sink aluminum fin 2, a cooling fan 3, and a heat dissipation copper plate 8. To address the heat dissipation requirements of the high-brightness light source during operation, a composite heat dissipation structure consisting of a heat pipe, a heat sink, and a cooling fan is integrated above the high-brightness lamp sheet (LED). The heat pipe enables rapid heat conduction, the heat sink increases the heat dissipation area, and the cooling fan accelerates air convection. These three elements work synergistically to ensure the LED operates efficiently within a stable temperature range.

[0080] Furthermore, in this embodiment, a mounting base 1 may also be included, which is disposed on the upper end of the heat sink aluminum fin 2.

[0081] Furthermore, in this embodiment, the high-brightness lamp sheet 10 can be disposed inside the anti-glare cover 11, and the anti-glare cover 11 is disposed at the lower end of the heat dissipation aluminum sheet 2.

[0082] Furthermore, in this embodiment, the projection lamp holder and the color-changing mechanism are arranged inside the color-changing mechanism housing 4. The color-changing mechanism housing 4 is fixed to the bottom of the heat dissipation aluminum fin 2 by the corner bracket connector 9. A lens housing 6 is also provided on the outside of the color-changing mechanism housing 4.

[0083] Furthermore, in this embodiment, the projection lamp holder can be a color-changing lamp holder 12, and the projection lamp is slidably installed in the color-changing mechanism housing 4. The color-changing mechanism includes a rack 13 disposed on one side of the projection lamp holder.

[0084] Furthermore, in this embodiment, the lens assembly may include a condenser lens 5 for focusing or controlling light and a lens 19 for achieving clear image formation and beam control. The condenser lens 5 is fixed inside the lens housing 6 by a lens mounting base 15. The condenser lens 5 is a convex / concave lens. The light source generated by the LED is optically processed by the convex / concave lens group. Through precise light divergence and focusing control, the "No Entry" warning message is clearly projected onto the designated area, forming an intuitive and eye-catching visual prompt.

[0085] Furthermore, in this embodiment, the light emitted by the high-brightness light sheet can be considered to pass sequentially through the projection light sheet, the focusing lens 5, and the lens 19.

[0086] Furthermore, in this embodiment, the mechanical transmission control module includes a solid-state protection relay 7 and a gradient motor 18. The solid-state protection relay 7 is located on one side of the heat dissipation copper plate 8, and the gradient motor 18 is located on one side of the lens housing 6. The motor shaft of the gradient motor 18 is connected to a gear set, which includes a drive gear 14 and a rotating gear 16. The drive gear 14 meshes with a rack 13. The gradient motor 18 and the gear set 16 / 14 form a precision transmission chain, ensuring that the switching of the light panel and the projection content change synchronously. When the solid-state relay receives a sensor signal, it immediately drives the gear set to rotate forward. Through the precisely meshed rack mechanism, it accurately pulls the projection switch to the warning display position, quickly responding to achieve a "No Entry" projection warning (the light panel pattern can be changed according to real-time needs).

[0087] Furthermore, in this embodiment, the intelligent detection module may include a laser detection switch 17, which is disposed on one side of the lens housing 6. The laser detection switch 17 employs non-contact detection, offering fast response and avoiding accidental interference. The intelligent detection module utilizes a high-precision sensor to construct a fan-shaped dynamic detection area with a radius of 4M and an angle of 120°, monitoring lateral vehicles, objects, and pedestrians in real time. This detection range supports parameterized adjustment to adapt to different application scenarios. Once a target is detected, the sensor immediately transmits a trigger signal to a solid-state relay, initiating the subsequent response mechanism. When the detection signal disappears, the system automatically returns to its initial state without manual intervention, improving ease of use and reliability.

[0088] Furthermore, in this embodiment, the intelligent detection module can also be equipped with an automatic reset mechanism: after a vehicle passes, the sensor confirms the safety status after a 5-second interval and sends a signal to the relay again. At this time, the relay controls the gear to rotate in the opposite direction, driving the rack to pull the projection lever back to the zebra crossing projection position. Using the same optical projection principle, a clear zebra crossing guidance mark is projected, realizing intelligent switching between warning and guidance functions.

[0089] Example 2:

[0090] A method for operating a projection lamp system capable of automatically switching patterns, characterized in that: the projection lamp system switches between an initial state and an operational state, wherein:

[0091] Original state

[0092] When the laser detection switch (17) in the intelligent detection module does not detect a target, the projection lamp system is in the initial standby state. At this time:

[0093] The rack (13) and the projection plate holder in the color-changing mechanism remain in their original positions;

[0094] The projection sheet with a zebra stripe pattern on the projection sheet holder is located at the initial projection position;

[0095] The lens (19) clearly projects the standard zebra stripe pattern onto the designated projection area as a reference mark;

[0096] Work status

[0097] When the laser detection switch (17) in the intelligent detection module detects that the target has entered the dynamic detection area, the projection lamp system starts according to the following logic:

[0098] S1. The gradual motor (18) is immediately activated and drives the rotating gear (16) and the drive gear (14) to run through the transmission mechanism.

[0099] S2. The gear set drives the rack (13) to move laterally, pushing the projection lamp holder (12) to switch to other projection modes;

[0100] S3, the lens (19) synchronously switches the projected content, changing from a standard zebra crossing to a warning sign to enhance visual reminders;

[0101] Once the target leaves the dynamic detection area, the projection system automatically resets to its original state, resumes zebra crossing projection, and enters a new round of standby detection.

[0102] The above description is merely a preferred embodiment of the present invention. It should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments, but can be used in various other combinations, modifications, and environments. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A projection lamp system capable of automatically switching patterns, characterized in that: include: An optical projection display module includes a high-brightness light sheet, a projection light sheet holder, and a lens assembly. The projection light sheet holder is provided with several projection light sheets corresponding to different projection modes, which are switched and fixed by a color-changing mechanism. The optical projection display module is used to clearly project warning information in one of the projection modes onto a designated projection area. A heat dissipation module, comprising a composite heat dissipation structure integrated around a high-brightness LED panel; The intelligent detection module is used to monitor targets passing through the dynamic detection area in real time. The mechanical transmission control module is used to drive the color-changing mechanism to switch projection modes.

2. The projection lamp system capable of automatically switching patterns according to claim 1, characterized in that: The composite heat dissipation structure is positioned above the high-brightness lamp sheet, and includes a heat dissipation aluminum fin, a heat dissipation fan, and a heat dissipation copper plate.

3. The projection lamp system capable of automatically switching patterns according to claim 2, characterized in that: It also includes a mounting base, which is disposed at the upper end of the heat sink aluminum fin.

4. A projection lamp system capable of automatically switching patterns according to claim 2, characterized in that: The high-brightness light sheet is installed inside the anti-glare cover, which is located at the lower end of the heat dissipation aluminum fin.

5. A projection lamp system capable of automatically switching patterns according to claim 2, characterized in that: The projection lamp holder and the color-changing mechanism are housed inside the color-changing mechanism housing. The color-changing mechanism housing is fixed to the bottom of the heat sink aluminum fin by corner bracket connectors. A lens housing is also provided on the outside of the color-changing mechanism housing.

6. A projection lamp system capable of automatically switching patterns according to claim 5, characterized in that: The projection light holder is a color-changing light holder, and the projection light is slidably installed inside the housing of the color-changing mechanism. The color-changing mechanism includes a rack disposed on one side of the projection light holder.

7. A projection lamp system capable of automatically switching patterns according to claim 5, characterized in that: The lens assembly includes a condenser lens for focusing or controlling light and a lens for achieving clear image formation and beam control. The condenser lens is fixed inside the lens housing by a lens mounting base.

8. A projection lamp system capable of automatically switching patterns according to claim 5, characterized in that: The mechanical transmission control module includes a solid-state protection relay and a graduated motor. The solid-state protection relay is located on one side of the heat dissipation copper plate, and the graduated motor is located on one side of the lens housing. The motor shaft of the graduated motor is connected to a gear set for transmission. The gear set includes a drive gear and a rotating gear, and the drive gear meshes with a rack.

9. A projection lamp system capable of automatically switching patterns according to claim 5, characterized in that: The intelligent detection module includes a laser detection switch, which is located on one side of the lens housing.

10. A method of operating a projection lamp system capable of automatically switching patterns as described in any one of claims 1-9, characterized in that: The projection lamp system switches between a primitive state and a working state, wherein: Original state When the laser detection switch in the intelligent detection module fails to detect a target, the projection lamp system is in an initial standby state. At this time: The rack and pinion mechanism and the projection light holder in the color-changing mechanism remain in their original positions; The projection sheet with a zebra stripe pattern on the projection sheet holder is located at the initial projection position; The lens clearly projects the standard zebra crossing pattern onto the designated projection area as a reference marker. Work status When the laser detection switch in the intelligent detection module detects that a target has entered the dynamic detection area, the projection lamp system is activated according to the following logic: S1. The gradual motor is activated immediately, driving the rotating gear and the drive gear to rotate through the transmission mechanism; S2. The gear set drives the rack to move laterally, pushing the projection lamp holder to switch to other projection modes; S3. The lens synchronously switches the projected content, changing from a standard zebra crossing to a warning sign to enhance visual reminders; Once the target leaves the dynamic detection area, the projection system automatically resets to its original state, resumes zebra crossing projection, and begins a new round of detection.

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