Rope ladder system based on laser projection and construction method

Abstract

The invention provides a rope ladder system based on laser projection and a construction method, and the system comprises a laser projection unit which is used for projecting a simulation image of a rope ladder in a target space; the data processing unit is connected with the laser projection unit and is used for identifying and receiving the environment data of the target space, generating rope ladder simulation image parameters and performing parameter adjustment control on the laser projection unit; and the interaction unit is used for receiving the instruction and transmitting the instruction to the data processing unit so as to realize adjustment and control of the rope ladder simulation image and realize line touch sound or image prompt at the same time. Projection imaging is used for replacing a real rope ladder, construction of a real rope is not needed, size parameters of the rope ladder can be designed and adjusted according to different site environments and requirements, repeated adjustment is not needed, fixed-distance indication operation is convenient and simple, virtual graphs are suitable for users of different ages and physical conditions, the scientific and personalized training requirements can be met, and the training efficiency is improved. In use, stumbling caused by a solid rope is avoided, the stumbling risk is avoided, and the safety index is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of laser-assisted imaging, and in particular to a rope ladder system and a construction method based on laser projection. Background Art

[0002] A rope ladder is a tool formed by combining a rope and a ladder. As an auxiliary tool, it is widely used in aerial operations, fire rescue, sports training, and simulation training that matches the operations.

[0003] The physical rope ladders used in the prior art are used for drills or instructions at fixed distances, and are of a single variety. Traditional physical rope ladders have many problems, such as being inconvenient to carry, time-consuming to build, and occupying a relatively single length and shape. During use, especially in simulation training or physical training, it is often difficult to adjust the size, and it cannot be used in a variety of different environments. After completing a single training, there are many inconveniences in adjusting the use or organizing and storing. At the same time, there is also a risk of tripping for some younger people or those in the early stages of training.

[0004] Therefore, the present invention provides a rope ladder system based on laser projection imaging, which uses a combination of laser imaging and projection to solve the problems existing in the prior art. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] The present invention is proposed in view of the problems that the existing physical rope ladders have single size and single function, cannot achieve the problem of setting a specific distance, are not safe enough and are prone to tripping.

[0007] Therefore, the technical problem to be solved by the present invention is to form a simulated rope ladder image through laser imaging to achieve adaptive adjustment of the size and function of the rope ladder to the environment and avoid unexpected safety problems.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: a rope ladder system based on laser projection, comprising a laser projection unit, for projecting a simulated image of a rope ladder in a target space; a data processing unit, connected to the laser projection unit, for identifying and receiving environmental data of the target space and generating parameters of the rope ladder simulation image, and for adjusting and controlling parameters of the laser projection unit; and an interaction unit, for receiving instructions and transmitting them to the data processing unit, so as to adjust and control the rope ladder simulation image.

[0009] As a preferred solution of the rope ladder system based on laser projection described in the present invention, the data processing unit includes a sensor, a data processing module and a control module, the control module is connected to the interactive unit, the sensor identifies the image data of the target space and transmits it to the data processing module for processing, and emits a sound to prompt the line is touched.

[0010] As a preferred solution of the rope ladder system based on laser projection described in the present invention, the laser projection unit includes no less than two laser projectors for projecting lasers in horizontal and vertical directions.

[0011] As a preferred solution of the rope ladder system based on laser projection described in the present invention, the target space environment data recognized by the sensor includes space size and shape, and the data processing module analyzes and processes the target space environment data to generate rope ladder simulation image parameters.

[0012] As a preferred solution of the rope ladder system based on laser projection described in the present invention, the laser projection unit adjusts the projected rope ladder simulation image parameters according to the target space environment and user settings, including but not limited to the simulated rope ladder length, height, step spacing, inclination angle, color and brightness.

[0013] Another object of the present invention is to provide a rope ladder construction method based on laser projection, the object of which is to use the above-mentioned rope ladder construction system based on laser projection to quickly build a rope ladder that can adapt to different scenes by using laser imaging.

[0014] In order to solve the above problems, the following technical solutions are provided: a rope ladder construction method based on laser projection, using the above-mentioned rope ladder system based on laser projection, and also including the following steps: S1: environmental identification and data acquisition, using sensors to identify the target space, obtaining environmental data of the target space, and transmitting the obtained data to a data processing unit; S2: rope ladder simulation model design, the data processing unit processes the obtained data information, determines the site mode for generating a simulated image, and generates simulated image parameters; S3: laser projection parameter generation and transmission, the data processing unit transmits the generated simulated image parameters to the interactive unit; S4: laser projection and calibration, the data processing unit controls the laser projection unit to project a simulated image of the rope ladder in the target space, and adjusts and calibrates the simulated figure formed by the laser beam emitted by the laser projection unit.

[0015] As a preferred solution of the rope ladder construction method based on laser projection described in the present invention, in which: in step S2, the data processing unit acquires data information including information acquired by sensor recognition and information input by the user through the interactive device.

[0016] As a preferred solution of the rope ladder building method based on laser projection described in the present invention, the selection of the field mode is determined based on the height H of the simulated rope ladder input by the user. When the height H of the simulated rope ladder is 0 or there is no data, it is determined to be the ground mode, otherwise it switches to the hurdle mode.

[0017] As a preferred solution of the rope ladder construction method based on laser projection described in the present invention, in the laser projection and calibration, the laser projection device is placed at a suitable position for projection, and the position and shape of the simulated rope ladder are adjusted by adjusting the angle, focal length and other parameters of the projection device.

[0018] Beneficial effects of the present invention: The present invention utilizes laser imaging and projection devices to replace the physical rope ladder with imaging. During the process, there is no need to build a physical rope, which saves space and resources and is convenient to carry and use. Secondly, the size parameters of the rope ladder can be quickly designed and adjusted according to different site environments and different needs. There is no need to adjust the position multiple times during use, and the fixed distance indication operation is convenient and simple, which improves the flexibility and adaptability of use. Thirdly, the present invention uses virtual graphics formed by laser projection, which can be suitable for users of different ages and physical conditions. During use, there will be no tripping due to the physical rope, which avoids the risk and possibility of tripping and greatly improves the safety index. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 It is a schematic diagram of the principle of the rope ladder system based on laser projection according to the present invention;

[0021] Figure 2 This is a schematic diagram of the process of the rope ladder construction method based on laser projection according to the present invention;

[0022] Figure 3 A laser projection schematic diagram of a rope ladder system based on laser projection according to the present invention;

[0023] Figure 4 A schematic diagram of the laser projection of the rope ladder system based on laser projection in the hurdle mode according to the present invention; DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] Example 1

[0029] Reference Figure 1 , which is the first embodiment of the present invention, provides a rope ladder system based on laser projection, such as Figures 1 to 4 A rope ladder system based on laser projection, a laser projection unit 100, used to project a simulated image of a rope ladder in a target space; a data processing unit 200, connected to the laser projection unit 100, used to identify and receive environmental data of the target space and generate parameters of the rope ladder simulation image, and to adjust and control the parameters of the laser projection unit 100; an interaction unit 300, used to receive instructions and transmit them to the data processing unit 200, so as to adjust and control the rope ladder simulation image.

[0030] For the rope ladder system, the image projected by the laser is mainly used to form a specific rope ladder shape. When in use, the laser projection unit 100 needs to be installed on the corresponding bracket. When deploying the rope ladder system based on laser projection, it is necessary to first ensure that the laser projection unit 100 is stably installed on the corresponding bracket. When in use, a bracket with height and angle adjustment functions should be selected. On the basis of ensuring stability and portability, the angle and position of the laser projector can be adjusted according to actual needs to ensure that the projected laser lines can accurately cover the target space. For the image projected by the laser projection unit 100, the simulated image referred to in the present invention is for the real rope ladder, and does not mean that the laser imaging is simulated. The user can observe the corresponding laser line and the specific image composed of it during use. For the laser projection unit 100, the formation of its graphics is mainly completed by the data processing unit 200, such as Figure 1 As shown, the data processing unit 200 is connected to the laser projection unit 100. After the data processing unit 200 recognizes the various data of the spatial environment that should be recognized, it will process the acquired data in combination with the parameter data input by the interaction unit 300 to generate parameters of the rope ladder simulation image. Finally, the generated rope ladder simulation data is displayed through the laser projection unit 100 to form the required rope ladder graphic.

[0031] Specifically, the laser projection unit 100 includes no less than two laser projectors for projecting horizontal and vertical lasers. For the laser projectors, at least one of the projectors is a plane grid projection device, which is mainly used to project precise grid patterns. As the basic framework of the rope ladder, the projector has a built-in high-resolution image generator to ensure the accuracy and stability of the grid pattern. A projector with a parallel laser line emission function should also be deployed to project parallel laser lines that match the grid pattern to form an image of the rope ladder in the vertical direction. For the laser projection unit 100, it should be able to adjust the spacing, inclination angle and brightness of the laser lines to adapt to the needs of different rope ladder shapes and environments. It should be noted that the present invention application is not an improvement made for the laser projection unit. In this application, the projector is a prior art, and projectors with similar functions such as Dangbei X5 Ultra and XGIMI RS10 Pro can be selected.

[0032] The data processing unit 200 includes a sensor 201, a data processing module 202 and a control module 203. The control module 203 is connected to the interaction unit 300. The sensor 201 identifies the image data of the target space and transmits it to the data processing module 202 for processing, and emits a sound of a line-touching prompt.

[0033] As shown in the figure, the data processing unit 200 includes a sensor 201, a data processing module 202 and a control module 203. For the sensor 201, a combination of a high-sensitivity camera and an infrared / ultrasonic sensor is used to capture the image data of the target space and environmental information such as size, shape, and obstacle distribution in real time. In order to more accurately identify the target space and collect comprehensive environmental data, functionally, the sensor 201 includes an infrared sensor, a depth camera, an ambient light sensor, and a temperature and humidity sensor. The infrared sensor is used to detect obstacles and human activities in the space to ensure that the projection of the simulated rope ladder will not conflict with existing objects or cause safety hazards. The depth camera provides three-dimensional structural information of the space to help the system understand the spatial layout more accurately, including ground flatness, wall distance, etc. The ambient light sensor is used to monitor the current lighting conditions so as to subsequently adjust the brightness and contrast of the laser projection to ensure that the simulated rope ladder can be clearly seen in different lighting environments. The temperature and humidity sensor is used to evaluate the possible impact of the environment on the projection equipment to prevent equipment failures caused by extreme temperature and humidity conditions.

[0034] The information acquired by the sensor 201 is transmitted to the data processing module 202 in real time, that is, the data processing module 202 receives the data transmitted by the sensor 201, and analyzes the environmental characteristics of the target space after identifying and processing the data. It should be noted that at this time, the user will also select a mode through the interactive unit 300, that is, manually set some parameters of the rope ladder (mainly the height parameter H). This is because if there is no height parameter H or the height parameter H is 0, that is, there is no valid height parameter H, such as Figure 3 As shown, the plane projection is performed. If a valid height parameter H is input through the interactive unit 300, such as Figure 4As shown, a three-dimensional projection is performed. The data processing module 202 processes the data set by the interactive unit 300 and the parameters recognized by the sensor 201 to generate the simulated image parameter data to be projected. After the control module 203 receives the simulated image parameter data to be projected, it controls the laser projection unit 100 to project the laser. The laser projection unit 100 includes a projection unit composed of no less than two laser projectors, which are used to project lasers in horizontal and vertical directions. That is, the two laser projectors will project a specific simulated rope ladder length, height, step spacing, inclination angle under the control of the data processing module 202 and the control module 203. , color and brightness of the image, the laser projector and the data processing module 202 and the control module 203 transmit and connect data by wired or wireless means, and feed back the graphic state to the sensor 201, and the sensor 201 identifies the state projected by the laser projection unit 100. If the laser projection unit 100 fails to project, the projection data or mode does not match, etc., the data processing module 202 will process the above abnormal data after receiving and identifying it, and transmit the processed data to the control module 203, and the control module 203 will adjust the projection data of the laser projection unit 100 until the laser projection unit 100 projects a qualified virtual image. Furthermore, one of the projectors is a plane grid projection device that can project different grid graphics, which are plane graphics. The other is a parallel laser line emitting device. Both projectors can be used separately, that is, only projecting a grid rope ladder graphic or a laser parallel line rope ladder graphic, or they can cooperate with each other to project a three-dimensional rope ladder graphic. For the interactive unit 300, an intuitive and easy-to-use touch screen control panel and user interface are adopted. In the user interface, commands can be input through controls such as buttons, slide bars and menus on the touch screen. At the same time, the interactive unit 300 also has a real-time preview function, which can display a preview effect of the current rope ladder simulation image. The effect can help users intuitively understand the adjustment results. Specifically, for the interactive unit 300, its terminal can be a mobile phone, tablet, AR and other commonly used devices in daily life to improve the convenience of use. During use, through the rope ladder construction system, the distance, steps and other parameters can be set in the interactive unit 300 to realize the function of fixed distance indication, and the preview effect of the current rope ladder simulation image can be displayed. After that, secondary adjustments can be made. It can be applied to different applicable scenarios. The virtual graphics formed by laser projection can be suitable for users of different ages and physical conditions. During use, the user will not be entangled by the physical rope, which avoids the risk and possibility of tripping and greatly improves the safety index.

[0035] Example 2

[0036] Reference Figures 1 to 4, which is an embodiment of the present invention, provides a rope ladder construction method based on laser projection, and a rope ladder system based on laser projection based on the above embodiment 1, further comprising the following steps:

[0037] Step S1: Environmental identification and data acquisition: Use sensor 201 to identify the target space, obtain environmental data of the target space, and transmit the acquired data to the data processing unit. The image data of the target space acquired by sensor 201 and environmental information such as size, shape, and obstacle distribution are transmitted to the data processing unit 200 through a high-speed, low-latency communication protocol to ensure the real-time and accuracy of the data. After receiving the data, the data processing unit 200 will perform preliminary data screening and verification to eliminate abnormal values ​​and noise. The data after noise reduction can be used as the data basis for subsequent laser graphics generation;

[0038] Step S2: rope ladder simulation model design, the data processing unit 200 processes the acquired data information, determines the site mode for which a simulation image needs to be generated, and generates simulation image parameters. In this process, the data processing unit processes the acquired data information including information obtained by sensor recognition and information input by the user through the interactive device. The information input by the user is mainly used for the selection of the site mode, including the ground mode and the hurdle mode. The selection of the site mode is determined based on the height H of the simulated rope ladder input by the user. When the height H of the simulated rope ladder is 0 or there is no data, it is determined to be the ground mode, otherwise it is switched to the hurdle mode.

[0039] The data processing unit 200 generates simulation image parameters that meet actual needs through the preset algorithm library and model library. In addition, for the ground mode, the system automatically adjusts the projection range according to the size and flatness of the space to ensure that the boundary of the simulated rope ladder is clear and does not exceed the actual space limit. In the hurdle mode, the system reasonably plans the arrangement and spacing of the rope ladder according to the simulated rope ladder height H set by the user, combined with the space height and obstacle information;

[0040] Step S3: The laser projection parameters are generated and transmitted. The data processing unit 200 transmits the generated simulated image parameters to the interactive unit 300. In order to ensure the accuracy and stability of the laser projection, the data processing unit 200 will perform a series of optimization processes after generating the simulated image parameters, including but not limited to image resolution adjustment, color correction, brightness balance, etc. These optimization parameters are then encoded into an instruction format that can be recognized by the laser projection unit, and transmitted to the interactive unit 300 through a high-speed and stable communication link. For problems such as obstacle conflicts, the data processing unit 200 will remind the user through instructions after processing to prevent problems from occurring during use;

[0041] Step S4: laser projection and calibration. The data processing unit 200 controls the laser projection unit 100 to project a simulated image of a rope ladder in the target space, and adjusts and calibrates the simulated figure formed by the laser beam emitted by the laser projection unit 100. In the laser projection and calibration, the laser projection device is placed at a suitable position for projection, and the position and shape of the simulated rope ladder are adjusted by adjusting the angle, focal length and other parameters of the projection device. In the laser projection and calibration stage, the data processing unit 200 also monitors the projection effect in real time and makes dynamic adjustments as needed. For the sensor 201, it can automatically detect the position offset and shape distortion of the projected image, identify the projected image data information and transmit it to the data processing module 202 for autonomous adjustment to ensure that the image is continuous, clear and distortion-free. Of course, the user can make manual adjustments through the interactive unit 300, and input the calibrated projection effect into the data processing unit 200 again for analysis, and continuously iterate and optimize until the predetermined accuracy requirement is met.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A rope ladder system based on laser projection, characterized in that: include, A laser projection unit (100) is used to project a simulated image of a rope ladder in a target space; A data processing unit (200) connected to the laser projection unit (100) and used for identifying and receiving environmental data of a target space and generating parameters of a rope ladder simulation image, and performing parameter adjustment control on the laser projection unit (100); The interactive unit (300) is used to receive instructions and transmit them to the data processing unit (200) to achieve adjustment and control of the rope ladder simulation image.

2. The rope ladder system based on laser projection as claimed in claim 1, characterized in that: The data processing unit (200) comprises a sensor (201), a data processing module (202) and a control module (203); the control module (203) is connected to the interaction unit (300); the sensor (201) identifies image data of the target space and transmits it to the data processing module (202) for processing, and emits a sound of a line-touching prompt.

3. The rope ladder system based on laser projection as claimed in claim 1, characterized in that: The laser projection unit (100) comprises at least two laser projectors, which are used to project lasers in horizontal and vertical directions.

4. The rope ladder system based on laser projection as claimed in claim 2, characterized in that: The target space environment data identified by the sensor (201) includes space size and shape, and the data processing module (202) analyzes and processes the target space environment data to generate rope ladder simulation image parameters.

5. The rope ladder system based on laser projection as claimed in claim 3, characterized in that: The laser projection unit (100) adjusts projected rope ladder simulation image parameters according to the target space environment and user settings, including simulated rope ladder length, height, step spacing, inclination angle, color and brightness.

6. A rope ladder construction method based on laser projection, characterized in that: Using the rope ladder system according to any one of claims 1 to 5 comprises the following steps: Step S1: Environmental identification and data collection, using sensors to identify the target space, obtain environmental data of the target space, and transmit the obtained data to a data processing unit; Step S2: rope ladder simulation model design, the data processing unit processes the acquired data information, determines the site mode for generating a simulation image, and generates simulation image parameters; Step S3: The laser projection parameters are generated and transmitted, and the data processing unit transmits the generated simulation image parameters to the interaction unit; Step S4: laser projection and calibration, the data processing unit controls the laser projection unit to project a simulated image of the rope ladder in the target space, and adjusts and calibrates the simulated image formed by the laser beam emitted by the laser projection unit.

7. The rope ladder construction method based on laser projection according to claim 6, characterized in that: In step S2, the data processing unit acquires data information including information acquired by sensor recognition and information input by the user through the interactive device.

8. The rope ladder construction method based on laser projection according to claim 7, characterized in that: The selection of the field mode is determined based on the height H of the simulated rope ladder input by the user. When the height H of the simulated rope ladder is 0 or there is no data, it is determined to be the ground mode, otherwise it is switched to the hurdle mode.

9. The rope ladder construction method based on laser projection according to claim 6, characterized in that: In the laser projection and calibration, the laser projection device is placed at a suitable position for projection, and the position and shape of the simulated rope ladder are adjusted by adjusting parameters such as the angle and focal length of the projection device.

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