An illumination system for photographing outdoor tire characters

Abstract

The utility model provides a kind of illumination system of outdoor tire character is shot, belong to photography auxiliary equipment technical field, the device includes installation base, lighting mechanism and control mechanism, microcontroller receives the trigger signal from trigger assembly, will immediately send instruction to driving board, driving board supplies power for the lighting lamp pearl of lighting mechanism according to instruction, since the two mounting pillars of lighting mechanism are respectively arranged in control mechanism two sides, and there is certain installation included angle between the installation end surface of lighting lamp pearl and the installation end surface where camera is, so that light can be irradiated on tire character with a suitable angle, when camera shutter action, through the trigger mechanism of trigger assembly, illumination system can be accurately synchronized with camera, light is projected to tire surface from two sides, realize accurate, evenly illuminating tire character, satisfy complex and changeable outdoor shooting requirement, provide high-quality image basis for subsequent accurate identification and analysis of character information.

Description

Technical Field

[0001] This utility model relates to the field of photographic auxiliary equipment technology, and in particular to a lighting system for photographing outdoor tire characters. Background Technology

[0002] In tire manufacturing, quality inspection, logistics management, and used tire trading, it is often necessary to clearly photograph the character information on tires. This information includes key details such as tire specifications, production date, brand, and performance parameters. However, shooting outdoors presents numerous challenges. Natural light is greatly affected by factors such as time and weather. For example, insufficient light on cloudy days and strong direct sunlight on sunny days can cause severe glare on the tire surface, resulting in characters that are either too bright or too dark, making it difficult to capture a clear image. Existing simple supplementary lighting equipment cannot meet the complex and ever-changing needs of outdoor shooting, failing to accurately and evenly illuminate the tire characters. This results in blurry characters and low contrast in the captured images, affecting the accurate identification and analysis of the character information. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a lighting system for photographing outdoor tire characters, thereby resolving the problems existing in the prior art.

[0004] This utility model provides a lighting system for photographing outdoor tire lettering, comprising: The mounting base has a control mechanism fixedly connected to it. The control mechanism includes a control cabinet with a camera mounted on it. Inside the control cabinet is a driver board with a microcontroller and a triggering component. The triggering component includes a hot shoe synchronization sensor, a wireless trigger receiver, and a sound trigger sensor. The hot shoe synchronization sensor is electrically connected to the camera's hot shoe interface via a synchronization line. The camera is electrically connected to a wireless transmitter, and the wireless trigger receiver is electrically connected to the wireless transmitter. The detection end of the sound trigger sensor is located at the camera shutter. The lighting mechanism and the control mechanism are both equipped with lighting mechanisms. The lighting mechanism includes a mounting column, which is fixedly connected to the mounting base. The mounting column has several embedding slots, and each embedding slot is equipped with an illumination lamp. The illumination lamps are electrically connected to the microcontroller.

[0005] As a further embodiment of this utility model, two lighting mechanisms are provided, which are respectively located on both sides of the control mechanism.

[0006] As a further embodiment of this utility model: the embedding slots are all opened on the mounting support and are biased towards the side of the control mechanism, that is, there is an installation angle between the mounting end face where the lighting lamp is located and the mounting end face where the camera is located.

[0007] As a further embodiment of this utility model, the installation angle is 20-40 degrees.

[0008] As a further embodiment of this utility model, the lighting beads are LED beads with a high color rendering index.

[0009] As a further aspect of this invention, the color temperature of the lighting beads is between 6000K and 6500K.

[0010] As a further embodiment of this invention, a lens is installed at the front end of the lighting bulb.

[0011] The beneficial effects of this utility model are: After receiving a trigger signal from the triggering component, the microcontroller of this invention immediately sends an instruction to the driver board. The driver board then supplies power to the lighting lamps of the lighting mechanism according to the instruction. Since the two mounting pillars of the lighting mechanism are respectively set on both sides of the control mechanism, and there is a certain mounting angle between the mounting end face where the lighting lamp is located and the mounting end face where the camera is located, the light can illuminate the tire characters at a suitable angle. When the camera shutter is activated, the lighting system can achieve precise synchronization with the camera through the triggering mechanism of the triggering component. The light is projected onto the tire surface from both sides at a suitable angle, avoiding the reflection problem caused by direct light. It also makes up for the defects of insufficient or uneven outdoor natural light. In the case of insufficient light on cloudy days, the lighting system can provide sufficient brightness to make the tire characters clearly visible. In the case of strong direct light on sunny days, it can balance the light, reduce the situation of the characters being too bright or too dark, and ensure that the characters in the captured image are clear and have high contrast, ensuring the complete and accurate presentation of the character information. Attached Figure Description

[0012] Figure 1 This is a front structural schematic diagram of a lighting system for photographing outdoor tire characters according to the present invention; Figure 2 This is a three-dimensional structural diagram of a lighting system for photographing outdoor tire characters according to the present invention.

[0013] List of reference numerals in the attached diagram: 1. Mounting base; 2. Lighting mechanism; 21. Mounting support; 22. Embedded slot; 23. Lighting bulb; 3. Control mechanism. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0015] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Reference Figure 1 and Figure 2 This utility model provides a lighting system for photographing outdoor tire characters, comprising: Mounting base 1, on which a control mechanism 3 is fixedly connected. The control mechanism 3 includes a control cabinet, on which a camera is mounted. Inside the control cabinet is a drive board, on which a microcontroller and a triggering component are mounted respectively. The triggering component includes a hot shoe synchronization sensor, a wireless trigger receiver, and a sound trigger sensor. The hot shoe synchronization sensor is electrically connected to the camera's hot shoe interface via a synchronization line. The camera is electrically connected to a wireless transmitter. The wireless trigger receiver is electrically connected to the wireless transmitter. The detection end of the sound trigger sensor is located at the camera shutter. Lighting mechanism 2 is provided on both sides of the control mechanism 3. The lighting mechanism 2 includes a mounting column 21, which is fixedly connected to the mounting base 1. The mounting column 21 has several embedding slots 22, and each embedding slot 22 is provided with a lighting bulb 23. The lighting bulbs 23 are electrically connected to the microcontroller.

[0018] There are two lighting mechanisms 2, which are respectively located on both sides of the control mechanism 3. The mounting slots 22 are all opened on the mounting pillar 21 and are biased towards the side of the control mechanism 3. That is, there is a mounting angle between the mounting end face where the lighting lamp bead 23 is located and the mounting end face where the camera is located. The mounting angle is 20-40 degrees. At the same time, the lighting lamp bead 23 is a high color rendering index LED bead with a color temperature between 6000K and 6500K, which is close to the color temperature of natural light and can truly reproduce the color of the tire characters. A lens is installed at the front end of the lighting lamp bead 23. The lens is made of glass material with good light transmission and uniform light diffusion, so that the light is projected onto the tire surface more softly and naturally.

[0019] The hot shoe sync sensor connects directly to the camera's hot shoe interface using a 3.5mm sync cable. It detects the electrical signal generated when the camera shutter is released. When the camera shutter is pressed, the hot shoe contacts close to form a circuit, generating a transition signal or a specific voltage pulse from high to low level, which directly reflects the shutter action. A wireless trigger receiver (such as a 2.4GHz or 433MHz module) continuously monitors wireless signals in a specific frequency band. When the wireless transmitter connected to the camera emits an encoded signal when the shutter is pressed, the receiver demodulates and verifies the validity of the signal before outputting a standard digital trigger signal, thus achieving long-distance wireless synchronization. A sound-triggered sensor (such as an electret microphone with an amplification circuit) works by detecting the unique mechanical sound characteristics of a camera shutter. The microphone converts the sound waves into electrical signals, which are then amplified by a bandpass filter and matched with preset shutter sound characteristics. When a valid shutter sound is identified, a trigger signal is output. The microcontroller configures all sensor interfaces and establishes a trigger signal monitoring mechanism. In actual operation, the hot shoe synchronous sensor monitors the interface level changes in real time and generates trigger candidates when a specific waveform is detected. The wireless receiver continuously decodes the wireless signal and generates candidates when it receives the correctly encoded trigger command. The sound sensor analyzes the environmental sound characteristics and generates candidates when it matches the shutter characteristic frequency.

[0020] All candidate trigger signals enter the arbitration logic: First, it checks for wired connection signals (hot shoe or wired direct trigger), and if so, it takes priority because these methods have the highest synchronization accuracy; second, it checks for wireless trigger signals because of their high reliability; finally, it considers sound triggering, although this method may be affected by environmental interference. Once the arbitration logic determines a valid trigger signal, the microcontroller immediately sends a command to the driver board, which then supplies power to the lighting bulbs 23 of the lighting mechanism 2 according to the command. Because the two mounting supports 21 of the lighting mechanism 2 are respectively located on both sides of the control mechanism 3, and the mounting face of the lighting bulbs 23 is at a 20-40 degree angle to the mounting face of the camera, this design allows the light to illuminate the tire characters at a suitable angle.

[0021] During actual shooting, when the camera shutter clicks, the lighting system, through the aforementioned triggering mechanism, achieves precise synchronization with the camera. Light is projected onto the tire surface from both sides at appropriate angles, avoiding reflections caused by direct sunlight and compensating for insufficient or uneven outdoor natural light. In cloudy conditions with insufficient light, the lighting system provides sufficient brightness to ensure the tire characters are clearly visible. In sunny conditions with strong direct sunlight, it balances the light, reducing overexposure or underexposure of the characters, ensuring clear characters and high contrast in the captured image, and guaranteeing the complete and accurate presentation of the character information.

[0022] Furthermore, the brightness of several illumination beads 23 in the lighting mechanism 2 can be adjusted according to actual needs under the control of the drive board. For example, tires of different specifications and colors have different light reflection and absorption characteristics. The microcontroller can precisely adjust the brightness of each illumination bead 23 according to preset parameters or light information fed back by the light control component, thereby achieving accurate and uniform illumination of the tire characters, meeting the complex and ever-changing outdoor shooting requirements, and providing a high-quality image foundation for the subsequent accurate recognition and analysis of character information.

[0023] It should be noted that not all steps and modules in the above processes and system structure diagrams are mandatory; some steps or modules can be omitted as needed. The execution order of each step is not fixed and can be adjusted as required. The system structure described in the above embodiments can be a physical structure or a logical structure. That is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or they may be jointly implemented by certain components in multiple independent devices.

[0024] In the above embodiments, the hardware modules can be implemented mechanically or electrically. The present invention has been described and illustrated in detail above with reference to the accompanying drawings and preferred embodiments. However, the present invention is not limited to these disclosed embodiments. Based on the above embodiments, those skilled in the art will understand that more embodiments of the present invention can be obtained by combining the code review methods in the different embodiments described above, and these embodiments are also within the protection scope of the present invention.

Claims

1. A lighting system for photographing outdoor tire characters, characterized in that, include: Mounting base (1), a control mechanism (3) is fixedly connected to the mounting base (1), the control mechanism (3) includes a control cabinet, a camera is installed on the control cabinet, a drive board is installed inside the control cabinet, a microcontroller and a trigger component are respectively installed on the drive board, the trigger component includes a hot shoe synchronization sensor, a wireless trigger receiver and a sound trigger sensor, the hot shoe synchronization sensor is electrically connected to the camera hot shoe interface through a synchronization line, the camera is electrically connected to a wireless transmitter, the wireless trigger receiver is electrically connected to the wireless transmitter, and the detection end of the sound trigger sensor is set at the camera shutter; Lighting mechanism (2) and control mechanism (3) are provided with lighting mechanism (2) on both sides. The lighting mechanism (2) includes mounting column (21). The mounting column (21) is fixedly connected to the mounting base (1). The mounting column (21) has several embedding slots (22). Each embedding slot (22) is provided with lighting lamp beads (23). The lighting lamp beads (23) are electrically connected to the microcontroller.

2. The lighting system for photographing outdoor tire characters according to claim 1, characterized in that, There are two lighting mechanisms (2), which are respectively located on both sides of the control mechanism (3).

3. The lighting system for photographing outdoor tire characters according to claim 1, characterized in that, The mounting slots (22) are all opened on the mounting support (21) on one side biased towards the control mechanism (3), that is, there is an installation angle between the mounting end face where the lighting lamp (23) is located and the mounting end face where the camera is located.

4. The lighting system for photographing outdoor tire characters according to claim 3, characterized in that, The installation angle is 20-40 degrees.

5. The lighting system for photographing outdoor tire characters according to claim 1, characterized in that, The lighting beads (23) are LED beads with high color rendering index.

6. The lighting system for photographing outdoor tire characters according to claim 1, characterized in that, The color temperature of the lighting beads (23) is between 6000K and 6500K.

7. The lighting system for photographing outdoor tire characters according to claim 1, characterized in that, The front end of the lighting bulb (23) is equipped with a lens.

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