Method for manufacturing special-shaped traffic sign board by means of optical plane geometry projection

Abstract

The invention belongs to the technical field of traffic safety, and particularly relates to a method for manufacturing a special-shaped traffic signboard by means of optical plane geometry projection, which comprises a memory, a projector, a blank plate and a workbench, m1, designing a special-shaped traffic sign image through computer software, and forming an output file; m2, storing the to-be-projected special-shaped traffic sign image in a memory; m3, the memory inputs the special-shaped traffic sign image into a projector, the projector projects the image outwards, the blank plate is fixed to a workbench, and the projector is arranged over the blank plate; m4, projecting the special-shaped traffic sign image to the blank plate by the projector to form an image; and M5, quickly pasting the special-shaped traffic sign word film. According to the method, the traffic sign image is projected to the blank plate according to the actual size through the projector, the traffic sign board meeting the actual requirement can be rapidly manufactured, and the method has the advantages of being low in cost, easy and convenient to operate, high in efficiency and the like and is suitable for manufacturing special-shaped traffic sign boards of various shapes and large sizes.

Description

Technical Field

[0001] The invention belongs to the technical field of traffic safety, and in particular relates to a method for producing a special-shaped traffic sign by geometrically projecting a to-be-designed plane content with the aid of an optical projection system. Background Art

[0002] Traffic signs are generally composed of a base film and a character film. The character film contains some specific patterns or some specific texts. At present, in the industry, there are two main ways to make traffic signs: one is to lay a monochrome base plate and use a special printer for multi-color inkjet printing; the other is to lay a monochrome base plate and manually separate and paste the colors. In actual applications, traffic signs made by printer printing have poor durability. The patterns and text will fade and the text will be blurred due to climatic factors such as sun and rain. Since the printing material is also relatively thin, it also lacks sufficient wind resistance, which affects the recognizability and service life of the sign.

[0003] The process of hand-made traffic signs usually includes drawing design, proofing, marking, cutting and pasting. It requires manual production of letter films or automatic film engraving machines, but the positioning and marking procedures are still unavoidable. Obviously, the entire process is very time-consuming and labor-intensive, consuming a lot of materials and manpower, and the working time efficiency is low. Especially for special-shaped traffic signs such as circles and triangles or traffic signs with unconventional shapes, their production and display face more challenges. Production errors may be caused by human factors, and the proportion and shape of traffic signs cannot be accurately maintained, which is more likely to cause material loss.

[0004] With the current generally high labor and material costs, the entire industry is in urgent need of a new method for making traffic signs, especially for the situation where the production process of large traffic signs on high-grade highways is not convenient for marking lines. It does not rely on existing printing and manual production methods, can improve production efficiency and reduce production costs, and meet the needs of high-efficiency production. Summary of the invention

[0005] In view of the limitations of the prior art, the present application proposes a method for producing special-shaped traffic signs by geometrically projecting the content of the proposed design plane with the help of an optical projection system. The method uses a projector to project the traffic sign image at actual size onto a blank plate. It does not rely on existing printing and manual production methods, and can quickly produce traffic signs that meet actual needs. It has the advantages of low cost and high efficiency, and is particularly suitable for the production of large traffic signs and special-shaped traffic signs of various shapes and sizes.

[0006] The technical solution of the present invention is achieved in this way: A method for making special-shaped traffic signs by means of optical plane geometric projection, comprising a storage device, a projector, a blank plate and a workbench; M1: Design special-shaped traffic sign images through computer software and generate output files; M2: storing the image of the special-shaped traffic sign to be projected in a memory; M3: The memory inputs the image of the special-shaped traffic sign into the projector, and the projector is used to project the image of the special-shaped traffic sign outward. The blank plate is fixed on the workbench, and the projector is set just above the blank plate; M4: The projector projects the image of the special-shaped traffic sign onto the blank plate to form an image; M5: Quick pasting of special-shaped traffic sign films.

[0007] Furthermore, the memory is a computer or an electronic storage device, such as a USB flash drive, an SD card, etc.

[0008] Furthermore, an image processing module is provided in the projector for adjusting and optimizing the projected image of the special-shaped traffic sign so that the ratio between the size of the image projected on the blank plate and the actual size is 1:1.

[0009] Furthermore, the workbench is a workbench with adjustable height, so as to adjust the distance between the projector and the blank plate; the workbench is also provided with a fixing mechanism, and the fixing mechanism is used to fix the blank plates of various shapes and sizes.

[0010] Further, the position of the projector is determined, the geometric center of the projector is longitudinally coincident with the geometric center of the blank plate, the projection center point on the blank plate is set as O, the center point O is taken as the geometric center, assuming that the length of the blank plate is H, the width is W, the vertical distance from the projector to the blank plate is D, and the projection angles of the projector in the horizontal direction are α and β, the specific contents are as follows: S1. Determine the appropriate projection distance Determine the distance D between the projector and the blank board according to the actual size of the blank board, D = (W / 2) * tan (α) = (H / 2) * tan (β); S2. Adjust the projection angle After determining the appropriate projection distance, adjust the projection angles α and β according to the actual image size and projection distance, tan(α)=D / W',tan(β)= D / H', where H' is the horizontal size of the image and W' is the vertical size of the image; S3. Calibration projection After determining the appropriate projection distance and angle, perform projection calibration.

[0011] This application may include the following benefits: 1. This method uses a projector to project the image of special-shaped traffic signs onto a blank plate to form an image grid. The staff can quickly and accurately generate traffic signs according to the grid, avoiding the tedious process of traditional manual marking and gridding, lowering the operating threshold, and greatly improving production convenience and efficiency. It is especially suitable for the production of large traffic signs and special-shaped traffic signs of various shapes and sizes (which are not convenient for marking and gridding).

[0012] 2. This method adjusts and optimizes the projected special-shaped traffic sign image through the image processing module in the projector to achieve the effect of de-distortion, so that the ratio of the size projected on the blank plate to the actual size is 1:1, and the projection color is brighter to achieve the best visual effect, ensuring the position accuracy and consistency of the produced special-shaped traffic signs, meeting the requirements of the specifications, and avoiding errors caused by inaccurate positioning due to human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] Figure 1 It is an overall flow chart of a method for making special-shaped traffic signs by means of optical plane geometric projection; Figure 2 A flow chart for determining the position of a projector for a method of making special-shaped traffic signs by means of optical plane geometric projection; Figure 3 A schematic diagram of a method for producing special-shaped traffic signs by means of optical plane geometric projection; Figure 4 The effect diagram is completed for a method of making special-shaped traffic signs by means of optical plane geometric projection; Figure 5 The present invention is a schematic diagram of a method for determining the position of a projector in a method for making special-shaped traffic signs by means of optical plane geometric projection.

[0015] Reference numerals: 1. Projector; 2. Workbench; 3. Blank board; 4. Image. DETAILED DESCRIPTION

[0016] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] A method for making a special-shaped traffic sign by means of optical plane geometric projection, comprising a memory, a projector 1, a blank plate 3 and a workbench 2; the memory is used to store the special-shaped traffic sign image to be projected, and input the special-shaped traffic sign image into the projector 1, the projector 1 is used to project the special-shaped traffic sign image outward, the projector 1 is arranged above the workbench 2, the blank plate 3 is fixed on the workbench 2, the projector 1 projects the special-shaped traffic sign image onto the blank plate 3 to form an image 4, which is used for quick pasting of the special-shaped traffic sign.

[0018] The method for making special-shaped traffic signs stores images in a memory, projects with a projector 1, uses a blank plate 3 as a receiving surface, and combines a workbench 2 to accurately adjust the projection effect, thereby realizing a fast and accurate special-shaped traffic sign making process, and can also ensure that the made traffic signs meet the specification requirements, and are suitable for the making needs of various special-shaped traffic signs.

[0019] When the blank board is placed on the workbench, the geometric center of the blank board and the workbench should coincide. In this embodiment, the workbench surface is a rectangular structure, and the blank board is also a rectangle. When placed, the two should correspond horizontally and vertically, and the geometric centers should coincide. The purpose of this design is to quickly determine the height and projection angle of the projector and make the projection position accurate.

[0020] In this embodiment, the memory may be a computer or an electronic storage device, such as a USB flash drive, an SD card, etc. These devices can conveniently store and manage a large number of special-shaped traffic sign images, providing convenience for making special-shaped traffic sign boards.

[0021] In order to ensure the accuracy and stability of the projection effect, an image processing module is also provided in the projector 1. The module can adjust and optimize the shape, size, position, etc. of the projected special-shaped traffic sign image to achieve the effect of de-distortion, so that the size of the image 4 projected on the blank plate 3 is 1:1 with the actual size. Image processing can avoid visual errors caused by mismatched proportions and improve the accuracy and reliability of the produced special-shaped traffic signs.

[0022] In addition, the workbench 2 adopts an adjustable height design to facilitate adjustment of the distance between the projector 1 and the blank plate 3. In this embodiment, the height adjustment mechanism adopts a hydraulic structure design, which is simple and convenient, and has low operating intensity. In this way, the staff can flexibly adjust the projection distance according to actual needs, so as to obtain a better projection effect. The workbench 2 is also designed with a fixing mechanism, which is used to fix blank plates 3 of various shapes and sizes, and rectangular, circular or triangular blank plates are applicable. The fixing mechanism can adopt a magnetic strip 4. After the blank plate 3 is placed in place, the magnetic strip 4 is placed on the outer edge of the blank plate 3. The magnetic strip 4 and the surface of the workbench 2 are adhered together by magnetic attraction, thereby playing the role of fixing the blank plate 3.

[0023] Determine the position of projector 1. The geometric center of projector 1 coincides with the geometric center of blank plate 3 in the longitudinal direction. Set the projection center point on blank plate 3 as O. Take center point O as the geometric center. Assume that the length of blank plate 3 is H, the width is W, the vertical distance from projector 1 to blank plate 3 is D, and the horizontal projection angles of projector 1 are α and β. The specific contents are as follows: S1. Determine the appropriate projection distance like Figure 4 As shown, firstly, the distance D between the projector 1 and the blank plate 3 is determined according to the actual size of the blank plate 3, D = (W / 2) * tan (α) = (H / 2) * tan (β); S2. Adjust the projection angle After determining the appropriate projection distance, adjust the projection angles α and β according to the actual image size and projection distance, tan(α)=D / W',tan(β)= D / H', where W' is the horizontal size of the image 4 and H' is the vertical size of the image; S3. Calibration projection After determining the appropriate projection distance and angle, perform projection calibration.

[0024] In the process of making traffic signs using this method, it is first necessary to stick a base film on the blank plate 3 in advance to ensure a smooth surface. Then fix the blank plate 3 on the workbench 2, and adjust the projection height and angle of the projector 1 to ensure a clear projection effect. Next, project the image of the special-shaped traffic sign onto the blank plate 3 to ensure that the position is accurate. Finally, according to the image 4, stick the previously engraved or cut character film on the blank plate 3 to ensure that the character film is completely in contact with the surface of the blank plate 3, and complete the production of the special-shaped traffic sign.

[0025] Through the above technical scheme, the method has many beneficial effects. First, the method of making special-shaped traffic signs by means of projection is easy to operate, fast and efficient. Compared with the traditional manual production method, this method saves the tedious manual operation steps and greatly improves the work efficiency. Secondly, due to the use of computer control and image processing technology, the method can realize the accurate projection of the image of the special-shaped traffic sign, avoid the proportion mismatch problem that may occur in the traditional manual production process, and improve the quality of the special-shaped traffic signs produced. In addition, the use of the adjustable height workbench 2 and special materials further improves the stability of the production process and the protection of the finished product.

[0026] The method of making special-shaped traffic signs with the help of projection has obvious advantages and practicality. It not only simplifies the production process and improves work efficiency, but also ensures that the produced special-shaped traffic signs are of high quality and good stability. Therefore, this method has broad application prospects in the field of traffic sign production.

[0027] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any modification, equivalent replacement and improvement made by any person skilled in the art within the technical scope disclosed by the present invention and within the spirit and principle of the present invention shall be covered within the protection scope of the present invention. At the same time, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] Finally, it should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, product or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, product or apparatus, and does not exclude the presence of other identical elements in the process, method, product or apparatus that includes the elements.

Claims

1. A method for making special-shaped traffic signs by means of optical plane geometric projection, characterized in that: Including storage, projector, blank board and workbench; M1: Design special-shaped traffic sign images through computer software and generate output files; M2: storing the image of the special-shaped traffic sign to be projected in a memory; M3: The memory inputs the image of the special-shaped traffic sign into the projector, and the projector is used to project the image of the special-shaped traffic sign outward. The blank plate is fixed on the workbench, and the projector is set just above the blank plate; M4: The projector projects the image of the special-shaped traffic sign onto the blank plate to form an image; M5: Quick pasting of special-shaped traffic sign films.

2. The method for making special-shaped traffic signs by means of optical plane geometric projection according to claim 1, characterized in that: The memory is a computer or an electronic storage device, such as a USB flash drive, an SD card, etc.

3. The method for making special-shaped traffic signs by means of optical plane geometric projection according to claim 1, characterized in that: An image processing module is arranged in the projector for adjusting and optimizing the projected special-shaped traffic sign image so that the ratio between the image size projected on the blank plate and the actual size is 1:

1.

4. The method for making special-shaped traffic signs by means of optical plane geometric projection according to claim 1, characterized in that: The workbench is a workbench with adjustable height, so as to adjust the distance between the projector and the blank plate; the workbench is also provided with a fixing mechanism, and the fixing mechanism is used to fix the blank plates of various shapes and sizes.

5. The method for making special-shaped traffic signs by means of optical plane geometric projection according to claim 1, characterized in that: Determine the position of the projector, the geometric center of the projector is longitudinally coincident with the geometric center of the blank plate, set the projection center point on the blank plate as O, take the center point O as the geometric center, assume that the length of the blank plate is H, the width is W, the vertical distance from the projector to the blank plate is D, and the projection angles of the projector in the horizontal direction are α and β. The specific contents are as follows: S1: Determine the appropriate projection distance Determine the distance D from the projector to the blank board according to the actual size of the blank board. ; S2: Adjust the projection angle After determining the appropriate projection distance, adjust the projection angles α and β according to the actual image size and projection distance. , , where W' is the horizontal size of the image and H' is the vertical size of the image; S3: Calibrate the projection After determining the appropriate projection distance and angle, perform projection calibration.

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