Double-slit laser synchronous paying-off method

Abstract

The invention relates to a double-seam laser synchronous paying-off method, which relates to the field of intelligent construction and construction measurement technology, and comprises the following steps: acquiring digital construction model data containing design position information of mortar joints and anchoring rib seams; based on the data, a laser projection device is controlled to project a mortar joint positioning marking line of the current layer on the wall working face; the projection parameters are dynamically adjusted according to the actual state information of the constructed wall, so that the marked line is updated to the design position of the next layer; and when construction is conducted to an anchoring rib embedding layer, rib body positioning marks used for indicating the positions of anchoring ribs are synchronously overlaid and projected on the mortar joint marking lines. According to the method, accurate synchronous positioning and real-time dynamic deviation correction of mortar joints and anchoring rib joints are achieved, the problems that in a traditional method, the mortar joints and the anchoring rib joints are separated in positioning, accumulated in error, dependent on manpower and difficult to adapt to complex walls are effectively solved, and the quality, efficiency and integrity of masonry construction are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of shale brick wall construction, and in particular to a double-seam laser synchronous layout method. Background Technology

[0002] Shale brick walls are widely used in masonry engineering due to their excellent mechanical properties and durability. The quality of their construction, especially the uniformity and straightness of the mortar joints and the precise embedding of anchor bars, directly affects the structural integrity, shear strength, and appearance quality of the wall.

[0003] Currently, construction relies mainly on worker experience, using chalk lines or straightedges to mark the mortar joint baseline, which easily leads to problems such as mortar joint misalignment and uneven thickness. Furthermore, the pre-embedded positions of the wall tie anchor bars are usually measured and marked separately with a steel ruler, independent of the mortar joint marking process. This causes the anchor bars to frequently deviate from the center of the mortar joint, affecting the overall integrity of the wall. In addition, the step-by-step operation results in multiple re-measurements and error accumulation, leading to low efficiency.

[0004] To improve accuracy, the industry has also tried using laser levels to help control the level of mortar joints, but this method has limited functionality and cannot simultaneously achieve accurate positioning of anchor bars.

[0005] Regarding the aforementioned technologies, the positioning of mortar joints and anchor bars generally suffers from separate positioning processes and poor coordination. Therefore, there is an urgent need for a method that can achieve simultaneous positioning of mortar joints and anchor bars, and adapt it to diverse construction scenarios. Summary of the Invention

[0006] To achieve synchronous positioning of mortar joints and anchor bars, and to adapt it to diverse construction scenarios, this invention provides a double-joint laser synchronous layout method.

[0007] This invention provides a double-slit laser synchronous wire laying method, which adopts the following technical solution: A double-slit laser synchronous wire laying method includes: Acquire digital construction model data for the target wall, including design location information for mortar joints and anchor bar joints; Based on the digital construction model data, the laser projection device is controlled to generate and project mortar joint positioning marks corresponding to the current construction layer on the current construction surface of the wall. Based on the actual status information of the constructed portion of the wall, the projection parameters of the laser projection device are dynamically adjusted to update the mortar joint positioning line to the design position of the next construction layer. When the construction progresses to the preset anchor bar embedment layer, the laser projection device is controlled to synchronously generate bar positioning marks on the mortar joint positioning line to indicate the anchor bar embedment position.

[0008] Preferably, the digital construction model data is automatically generated by the building information modeling system based on the input wall design parameters; The wall design parameters include the wall's geometric dimensions, block specifications, mortar joint design thickness, and the design spacing and embedment location of anchor bars.

[0009] Preferably, the laser projection device includes a total station and a laser level; The total station is used to establish a global coordinate system at the construction site and to obtain the actual status information of the constructed portion of the wall. The laser level is used to receive projection instructions generated based on the digital construction model data and / or the actual state information, and to project the mortar joint positioning lines and the reinforcement positioning marks.

[0010] Preferably, before controlling the laser projection device to project the mortar joint positioning mark of the current construction layer, a calibration step is also included: The laser level is controlled to project the first layer of mortar joint markings; The actual position of the first-layer mortar joint marking line was measured using the total station. The actual location is compared with the corresponding design location in the digital construction model data, and the initial positioning of the laser projection device is corrected based on the comparison results.

[0011] Preferably, the mortar joint positioning mark is a visible light strip mark with a preset width, the preset width being related to the designed mortar joint thickness.

[0012] Preferably, the step of dynamically adjusting the projection parameters based on the actual state information of the constructed portion of the wall specifically includes: The actual elevation of the top surface of the current layer of masonry, which has been completed, is measured using the total station. Calculate the deviation between the actual elevation and the theoretical design elevation of the next construction layer; Based on the deviation, the projection elevation of the mortar joint positioning mark is compensated by adjusting the projection elevation angle or reference height of the laser level.

[0013] Preferably, after updating the mortar joint positioning mark to the design position of the next construction layer, the method further includes: in a normal construction layer where the anchor bar is not embedded, updating the mortar joint positioning mark includes: controlling the laser level to automatically raise the projection elevation of the mortar joint positioning mark according to the preset theoretical height of a single layer of masonry.

[0014] Preferably, the reinforcement positioning mark is visually distinguishable from the mortar joint positioning mark and is presented as a geometric shape that defines the area where the anchor reinforcement is embedded.

[0015] Preferably, after the synchronous superposition generates the anchorage markers for indicating the anchorage position, a verification step is also included: Based on the optical signal fed back by the laser projection device, it is determined whether the actual position of the anchor bar placed in the geometric area meets the preset positioning accuracy requirements. If it does not meet the requirements, a prompt message will be generated.

[0016] Preferably, the method is also applicable to wall structures with curves or slopes; The laser projection device dynamically adjusts the projection angle and shape of the mortar joint positioning line and the reinforcement positioning mark according to the positioning information corresponding to the curve or slope in the digital construction model data, so that they are adapted to the curved or sloped surface of the wall structure.

[0017] In summary, the present invention has at least one of the following beneficial technical effects: 1. Using a laser projection device, the mortar joint positioning lines and reinforcement positioning marks derived from the digital model are simultaneously and superimposed onto the work surface, intuitively guiding construction. This completely changes the drawbacks of the traditional process where the two are laid out step by step, which is prone to misalignment. It ensures that the anchor bars are accurately embedded in the designed position of the mortar joint, effectively avoiding exposed reinforcement, insufficient embedment depth, or positional deviation. It significantly enhances the bond strength and synergistic performance between the masonry and the anchor bars, thereby greatly improving the integrity, shear strength, and long-term durability of the wall.

[0018] 2. The system acquires real-time information on the actual status of the constructed structure through integrated measurement equipment and dynamically adjusts the laser projection parameters accordingly. This closed-loop system automatically compensates for unavoidable cumulative errors in floor height and block size deviations during construction, ensuring that the mortar joint positions of each layer of bricks strictly follow the design model. This results in uniform mortar joint thickness, extremely high wall flatness, and effectively eliminates quality dispersion problems caused by human error.

[0019] 3. Clear, automated optical markings replace complex manual measurement, line marking, and verification work. Construction workers only need to follow the light trails, without requiring advanced line-laying skills, thus reducing the technical requirements for personnel. At the same time, the automatic raising and switching functions of the markings reduce frequent measurement interruptions, making the masonry process more continuous and shortening the construction period. Accurate initial line laying also greatly reduces rework caused by positioning errors, saving costs and time. Attached Figure Description

[0020] Figure 1 This is a flowchart illustrating a double-slit laser synchronous wire laying method according to the present invention. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] The technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0023] To further illustrate the technical concept of this invention, the technical solution of this invention will now be described in conjunction with specific application scenarios.

[0024] This invention discloses a double-slit laser synchronous wire laying method. (Refer to...) Figure 1 Mainly includes: Step S101: Obtain digital construction model data for the target wall, including design location information of mortar joints and anchor bar joints; The digital construction model data refers to a structured data set generated based on a building information modeling system, computer-aided design system, or other engineering design platform. This data set contains precise coordinate information such as wall geometry, block arrangement, mortar joint locations, and anchor bar placement. This data set fully expresses the design intent and is the foundation for achieving precise construction.

[0025] In this step, structured and parsable digital design data is acquired to replace the traditional method of relying on two-dimensional drawings and manual calculations, providing a reliable data source for subsequent automated and high-precision layout. This ensures the consistency between the construction process and the design model and provides a benchmark for dynamic adjustments during construction.

[0026] In practice, BIM software is used to create a wall model during the design phase, and the block size, mortar joint thickness, anchor bar spacing, and embedment height are set according to design specifications. The software automatically calculates the centerline coordinates of the mortar joints for each course of bricks and the precise three-dimensional coordinates of the ends of each anchor bar, and outputs them as machine-readable data files.

[0027] As an optional embodiment, step S101 specifically includes: Step S1011: Complete the wall modeling in the design software and clarify all geometric and structural parameters; Step S1012: Automatically extract or calculate a dataset containing the coordinates of the mortar joint lines and anchor bar points of each construction layer through the software's built-in functions or plugins; Step S1013: Export the dataset in a standard format for subsequent construction control terminal reading.

[0028] In steps S1011-S1013, parametric modeling ensures the accuracy and reusability of the data source; automated extraction avoids errors from manual transcription; and standard format export ensures compatibility with various construction control systems, achieving seamless data flow from design to construction.

[0029] Step S102: Based on the digital construction model data, control the laser projection device to generate and project mortar joint positioning lines corresponding to the current construction layer on the current construction work surface of the wall; The laser projection device refers to a device or combination of devices capable of receiving positioning commands and converting digital coordinates into visible optical lines that are projected onto a solid surface, such as an integrated control total station and laser level system. The mortar joint positioning lines serve as a visual reference directly indicating the mortar laying and block placement positions.

[0030] In this step, a laser projection device is used to transform abstract digital coordinates into visible optical guidance on the construction site in real time and intuitively, replacing the traditional chalk line marking. This achieves automation, visualization, and high precision in the line laying process, significantly reducing reliance on skilled line laying workers.

[0031] In practice, the construction control terminal reads the construction data of the first floor and drives the laser level to project a red horizontal laser line onto the wall base. The width of this laser line can be set slightly larger than the designed mortar joint thickness; for example, if the mortar joint is 10mm thick, the line width is set to 12mm, providing workers with a clear visual boundary for laying the mortar.

[0032] Step S103: Based on the actual status information of the constructed portion of the wall, dynamically adjust the projection parameters of the laser projection device to update the mortar joint positioning line to the design position of the next construction layer; The actual state information refers to data reflecting the actual size and position of the constructed wall, obtained by scanning the wall with measuring equipment, such as a total station, including but not limited to wall flatness and cumulative floor height error. Dynamic adjustment refers to the real-time correction of the reference height or angle of laser projection based on the deviation between the measured data and the design data.

[0033] In this step, a closed-loop control system is formed by introducing real-time measurement feedback. This system can automatically detect and compensate for minor errors that occur during construction, such as brick thickness deviations and mortar compression, preventing errors from accumulating layer by layer and ensuring that each layer of mortar joints can accurately return to the design position, thereby guaranteeing the overall verticality, flatness, and uniformity of the mortar joints of the wall.

[0034] In practice, after one layer of masonry is completed, the total station automatically scans the top of the brick wall to obtain its actual elevation. The control software compares this measured elevation with the theoretical design elevation of the mortar joints of the next layer in the model. If a deviation exists, the software instructs the laser level to automatically subtract the deviation value from the theoretical projection height of the next layer, achieving intelligent compensation and precise raising of the marking position.

[0035] Step S104: When the construction progresses to the preset anchor bar embedment layer, the laser projection device is controlled to synchronously generate bar positioning marks on the mortar joint positioning line to indicate the anchor bar embedment position.

[0036] The anchorage marker is a special optical mark that is visually distinguishable from the mortar joint positioning line. It is used to accurately define the horizontal position area where one or more anchorage bars should be placed, such as a green flashing rectangular light frame.

[0037] In this step, by providing synchronous positioning guidance for the mortar joints and anchor bars at the same projection interface and at the same time, the problem of separation and misalignment between the two in traditional methods is fundamentally solved. Workers can use the unified visual signals to precisely embed the anchor bars in the designed positions while laying the mortar joints, achieving integrated construction from joint to anchor bar, and ensuring the effectiveness of structural bonding.

[0038] In practice, when the masonry progress reaches the preset anchor bar layer in the BIM model, such as one layer every five brick courses, the control terminal automatically sends a command to the laser projection device. While maintaining the red horizontal mortar joint mark, the laser level projects a flashing green box above or below it. The position and length of each green box correspond to the exposed portion of an anchor bar, allowing workers to precisely position the bar directly within the green box.

[0039] As another optional embodiment, in step S101, the digital construction model data is automatically generated by the building information modeling system based on the input wall design parameters; The wall design parameters include the wall's geometric dimensions, block specifications, mortar joint design thickness, and the design spacing and embedment location of anchor bars.

[0040] The wall design parameters are a set of data used to uniquely describe and define all key features of the target wall, and serve as the starting point for this method's input. Specifically, they include: The geometric dimensions of the wall: such as the total length, total height, thickness of the wall, as well as its precise planar position and corner information in the building plan.

[0041] Block specifications: refers to the standard dimensions of the shale bricks used, such as length × width × height: 240mm × 115mm × 53mm, which is the basis for calculating the block layout.

[0042] Grout joint design thickness: refers to the nominal thickness of the horizontal and vertical grout joints required by the design, such as 10mm or 12mm, which is the key to determining the spatial location of the grout joints.

[0043] Design parameters for anchor bars: including the diameter, material, design spacing, embedment location, and vertical spacing of the anchor bars, such as "one layer every 500mm height" or "one layer every five brick courses".

[0044] The process and principles of BIM system automatically generating model data: BIM systems, such as Revit and ArchiCAD, use parametric-driven and rule-based automatic generation processes as their core data processing mechanisms. Parametric modeling: When creating wall components in BIM software, users assign the above design parameters to the wall as parameters. For example, setting "block length = 240mm", "mortar joint thickness = 10mm", and "anchor bar layer height = every five brick courses".

[0045] Rule engine driven: Masonry layout rules built into the software or loaded via plugins are activated. Based on the "block specifications" and "mortar joint thickness," the system automatically calculates and generates the precise three-dimensional position of each layer of bricks and determines the centerline of each mortar joint.

[0046] Intelligent component placement: Based on the "anchor bar design parameters", the system automatically generates a family of intelligent components representing anchor bars in the horizontal direction at the design spacing in the specified vertical interval layer, such as the mortar joint position of the fifth brick course, and accurately calculates the three-dimensional coordinates of its endpoints, exposed end and anchor end.

[0047] Data Extraction and Structuring: After the model is established, the system uses an application programming interface or dedicated data extraction tools to traverse the wall objects in the model and extract two types of core data: a) the three-dimensional coordinates of the start and end points of the mortar joint positioning lines corresponding to each construction layer; b) the three-dimensional coordinates of the preset embedded points or exposed end positioning points of each anchor bar. These coordinate data, along with their respective layer numbers, index numbers, and other information, are automatically organized into a structured data list or database table, forming the aforementioned "digital construction model data".

[0048] Specific implementation example: In one office building project, designers used Revit software. When drawing a 10-meter-long, 3-meter-high shale brick infill wall, the wall properties were set as follows: block size = 240x115x53mm, mortar joint thickness = 10mm, anchor bar diameter = 6mm, and the center-to-center spacing between adjacent anchor bars is 500mm, embedded in the mortar joints every five courses of bricks. Using the "Brick Wall Layout" plugin, a 3D detail drawing with brick joints and reinforcement was generated with a single click. Subsequently, a script was written using the Dynamo visual programming tool to extract 57 horizontal mortar joint lines from the base to the top. Each line included the X, Y, Z coordinates of the start and end points and the coordinates of 11 anchor bar points located at the 5th, 10th, 15th…55th courses of bricks. This data was exported as a structured spreadsheet, directly used to guide the on-site laser-synchronized layout work.

[0049] As another optional embodiment, in step S102, the laser projection device includes a total station and a laser level; The total station is used to establish a global coordinate system at the construction site and to obtain the actual status information of the constructed portion of the wall. The laser level is used to receive projection instructions generated based on the digital construction model data and / or the actual state information, and to project the mortar joint positioning lines and the reinforcement positioning marks.

[0050] In a preferred embodiment, the laser projection device specifically includes a total station and a laser level, which are connected to the same construction control terminal via wired or wireless means to form a collaborative measurement-projection system.

[0051] As an optional embodiment, step S102 specifically includes: S1021: Initialization and Calibration: After the total station is set up and the coordinate system is bound, the initial installation position of the laser level will be calibrated to determine the relative positional relationship between the two, ensuring that the "origin" projected by the laser level is consistent with the coordinate system of the total station.

[0052] S1022: Command Generation and Projection: The control terminal calculates the position of the markings to be projected on the current layer based on the BIM data. Combining this with the site coordinate system measured in real time by the total station, it converts the absolute coordinates into angle commands to drive the laser level to rotate horizontally and tilt vertically. The laser level executes these commands to complete the first accurate projection.

[0053] As another optional embodiment, before controlling the laser projection device to project the mortar joint positioning mark of the current construction layer in step S104, step S1041 is also included: calibration step: The laser level is controlled to project the first layer of mortar joint markings; The actual position of the first-layer mortar joint marking line was measured using the total station. The actual location is compared with the corresponding design location in the digital construction model data, and the initial positioning of the laser projection device is corrected based on the comparison results.

[0054] The calibration steps are as follows: First, obtain the coordinates of multiple actual location points measured by the total station on the first-layer mortar joint marking. Second, based on a preset fitting algorithm, such as the least squares method, fit the multiple actual location points into a spatial straight line. Third, calculate the spatial deviation parameter between the fitted straight line and the corresponding design position straight line in the digital construction model data. Fourth, generate correction instructions for the projection angle and position of the laser projection device based on the spatial deviation parameter. Alternatively, measure at least two endpoints of the first-layer mortar joint marking sequentially using the total station. Compare the measured endpoint coordinates directly with the design coordinates. If the deviation in any direction exceeds a preset threshold, adjust the setup of the total station or the laser level manually or automatically until the deviation is eliminated.

[0055] The algorithm based on multi-point fitting can effectively resist the influence of random errors in single-point measurements, obtain more robust spatial attitude deviations of the datum line, and achieve systematic correction. The direct comparison method using key endpoints, on the other hand, features direct judgment and rapid response, facilitating the quick identification and elimination of gross errors. Both methods aim to establish a highly reliable initial construction benchmark.

[0056] It should be noted that the segmented calibration strategy, which involves first performing coarse calibration using the key point direct correction method to eliminate major deviations, and then performing fine calibration using the algorithm fitting correction method, also falls within the scope of protection of this application.

[0057] As another optional embodiment, in step S102, the mortar joint positioning mark is a visible light strip mark with a preset width, the preset width being related to the designed mortar joint thickness.

[0058] As an optional implementation method, the specific implementation of the association relationship is as follows: Step W1: In the parameter configuration interface of the BIM system or construction control terminal, enter the design mortar joint thickness value, such as 10mm.

[0059] Step W2: The system determines the construction allowance value based on built-in rules or user-defined rules, such as a default of 2mm, or adjusts it between 1-3mm according to the flatness of the bricks.

[0060] Step W3: The system automatically calculates the preset width value: 10mm + 2mm = 12mm.

[0061] Step W4: This width value, as one of the control parameters, is sent to the laser level. The laser level projects a 12mm wide red band of light, rather than an extremely thin laser line, through optical modulation, such as diffraction or scanning.

[0062] Specific Implementation Example: In a residential project, when constructing shale brick walls, the designed mortar joint thickness was 12mm. The technician set this value in the tablet control software, using a default 2mm allowance. The software controlled a laser level to project a prominent red band 14mm wide onto the wall base. The bricklayers used a specially designed mortar-spreading tool with a blade width of approximately 14mm to easily fill the entire band with mortar. After laying the bricks, the actual mortar joint thickness was almost perfectly controlled within the range of 12mm ± 0.5mm, far superior to the dispersion of traditional methods.

[0063] It provides workers with a clear mortar-laying space range that directly corresponds to the design dimensions, making the key process of controlling the mortar joint thickness intuitive and simple, and almost eliminating thickness deviations caused by personal judgment.

[0064] As another optional embodiment, in step S103, the dynamic adjustment of the projection parameters based on the actual state information of the constructed portion of the wall specifically includes: The actual elevation of the top surface of the current layer of masonry, which has been completed, is measured using the total station. Calculate the deviation between the actual elevation and the theoretical design elevation of the next construction layer; Based on the deviation, the projection elevation of the mortar joint positioning mark is compensated by adjusting the projection elevation angle or reference height of the laser level.

[0065] The total station is used to perform non-contact scanning measurements on the top surface of the completed masonry layer to obtain its actual elevation. The total station can automatically aim at and measure the Z-coordinates of multiple points on the top of the current layer, and calculate their average value as the representative actual elevation of the layer to eliminate the influence of local unevenness.

[0066] The control terminal reads the theoretical design elevation of the mortar joint positioning lines for the next construction layer from the digital construction model data. Then, it calculates the deviation between the two. This deviation reflects the accumulated height error of the already constructed sections.

[0067] Based on the calculated deviation, the control terminal generates a compensation command. By adjusting the projection elevation angle of the laser level or its reference height parameter within the software, the projection elevation of the mortar joint positioning line for the next layer is compensated in real time. This ensures that the mortar joints of the next layer are formed in the designed position, achieving layer-by-layer elimination of errors. This realizes real-time perception and adaptive adjustment of the construction process, transforming open-loop construction into closed-loop control, effectively suppressing error accumulation and ensuring the overall verticality and floor height accuracy of the wall.

[0068] As another optional embodiment, after updating the mortar joint positioning line to the design position of the next construction layer in step S103, the method further includes: in the ordinary construction layer where the anchor bar is not embedded, updating the mortar joint positioning line includes: controlling the laser level to automatically raise the projection elevation of the mortar joint positioning line according to the preset theoretical height of a single layer of masonry.

[0069] In a preferred embodiment, in ordinary construction layers without embedded anchor bars, the operation of updating the mortar joint positioning marks is simplified into an efficient automatic lifting mode. Specifically, the laser level is controlled to automatically raise the projection elevation of the mortar joint positioning marks according to a preset theoretical height for a single layer of masonry.

[0070] As another optional embodiment, in step S104, the reinforcement positioning mark is visually distinguishable from the mortar joint positioning mark and is presented as a geometric shape that defines the area where the anchor reinforcement is embedded.

[0071] Visually distinct from the grout seam markings, such as red stripes. For example, using different colors, such as green or blue; different flashing frequencies; or different line types, such as dashed or solid lines.

[0072] Its form is a geometric shape that defines the area where the anchor bars are embedded. The most preferred shape is a rectangular frame, with its length corresponding to the length of the reinforcing bar. The width of the frame is slightly larger than the diameter of the reinforcing bar, and the length of the frame corresponds to the length of the reinforcing bar that needs to be exposed or embedded in the mortar joint. This shape is projected directly next to the mortar joint markings of the anchor bar layer or at a specific location, visually showing the planar area that each reinforcing bar should occupy.

[0073] Functional zoning is achieved through attributes such as color and flashing, and precise spatial positioning is provided through specific graphics, enabling workers to place anchor bars quickly and accurately without ambiguity, thus completely solving the problem of ambiguous bar positioning.

[0074] As another optional embodiment, after generating the anchorage mark for indicating the anchorage position in step S104, the method further includes S1041: Verification step: Based on the optical signal fed back by the laser projection device, it is determined whether the actual position of the anchor bar placed in the geometric area meets the preset positioning accuracy requirements. If it does not meet the requirements, a prompt message will be generated.

[0075] The system makes its judgment based on the optical signal fed back by the laser projection device, such as a laser level. When the rebar is placed within the green frame, it will reflect or block part of the laser. By analyzing the intensity distribution of the reflected signal or by capturing images through a visual sensor, the system can determine whether the actual position of the rebar meets the preset positioning accuracy requirements.

[0076] If the judgment result is that the accuracy requirement is not met, the control terminal will immediately generate a prompt message. This message can be a flashing warning or a deviation direction arrow on the control interface, or it can be an audible and visual alarm signal issued on site, such as a buzzer sounding, prompting the worker to make adjustments.

[0077] Real-time quality checkpoints were added during the placement process, forming a complete closed loop of "positioning-placement-verification" to ensure that the quality of each anchor bar is controlled, further improving the structural reliability.

[0078] As another optional embodiment, the method is also applicable to wall structures with curves or slopes; The laser projection device dynamically adjusts the projection angle and shape of the mortar joint positioning line and the reinforcement positioning mark according to the positioning information corresponding to the curve or slope in the digital construction model data, so that they are adapted to the curved or sloped surface of the wall structure.

[0079] The laser projection device, especially the collaborative system of the laser level and total station, can be dynamically adjusted based on the complex positioning information corresponding to the curve or slope in the digital construction model data.

[0080] For curved walls: the model data does not provide a series of horizontal straight line coordinates, but rather a set of coordinate points following the curve. Under the command of the control terminal, the laser level projects mortar joint positioning lines that are no longer horizontal straight lines, but rather curved light bands that match the curvature of the wall. At the same time, the position and direction of the reinforcement positioning marks are also calculated and projected accordingly based on the normal direction at that location.

[0081] For sloping walls: The laser level will dynamically adjust the tilt angle of the projected light strip according to the tilt angle of the wall, so that it is always parallel and equidistant from the designed sloping surface, forming a clear guide line for sloping wall construction.

[0082] Dynamic adjustment mechanism: The total station continuously tracks the position of the wall, and the laser projection device finely adjusts the projection angle and spot shape in real time based on feedback and model data to ensure that the optical markings are accurately adapted to the actual curved or inclined physical structure.

[0083] This technology solves the industry-wide problems of difficult and low-precision layout for irregularly shaped masonry structures. It enables high-precision and high-efficiency construction of complex wall shapes without the need for expensive physical formwork, demonstrating the significant advantages of digital construction technology.

[0084] The aforementioned control terminals exist in various forms, including but not limited to: (1) Mobile communication devices: These devices are characterized by their mobile communication capabilities and primarily aim to provide voice and data communication. These terminals include: smartphones (e.g., iPhones), multimedia phones, feature phones, and low-end phones, etc.

[0085] (2) Ultra-mobile personal computer devices: These devices fall under the category of personal computers, possessing computing and processing capabilities, and generally also have mobile internet access features. These terminals include PDAs, MIDs, and UMPCs, such as the iPad.

[0086] (3) Portable entertainment devices: These devices can display and play multimedia content. This category includes: audio and video players (such as iPods), handheld game consoles, e-books, as well as smart toys and portable car navigation devices.

[0087] (4) Server: A device that provides computing services. The components of a server include a processor, hard disk, memory, system bus, etc. Servers are similar to general computer architectures, but because they need to provide highly reliable services, they have higher requirements in terms of processing power, stability, reliability, security, scalability, and manageability.

[0088] (5) Other electronic devices with data interaction functions.

[0089] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on its differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments. For ease of description, the above devices are described by dividing them into various functional units / modules. Of course, in implementing this invention, the functions of each unit / module can be implemented in one or more software and / or hardware.

[0090] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for synchronous laser wire laying using a double-slit system, characterized in that, include: Acquire digital construction model data for the target wall, including design location information for mortar joints and anchor bar joints; Based on the digital construction model data, the laser projection device is controlled to generate and project mortar joint positioning marks corresponding to the current construction layer on the current construction surface of the wall. Based on the actual status information of the constructed portion of the wall, the projection parameters of the laser projection device are dynamically adjusted to update the mortar joint positioning line to the design position of the next construction layer. When the construction progresses to the preset anchor bar embedment layer, the laser projection device is controlled to synchronously generate bar positioning marks on the mortar joint positioning line to indicate the anchor bar embedment position.

2. The double-slit laser synchronous wire laying method according to claim 1, characterized in that, The digital construction model data is automatically generated by the building information modeling system based on the input wall design parameters; The wall design parameters include the wall's geometric dimensions, block specifications, mortar joint design thickness, and the design spacing and embedment location of anchor bars.

3. The double-slit laser synchronous wire laying method according to claim 1 or 2, characterized in that, The laser projection device includes a total station and a laser level. The total station is used to establish a global coordinate system at the construction site and to obtain the actual status information of the constructed portion of the wall. The laser level is used to receive projection instructions generated based on the digital construction model data and / or the actual state information, and to project the mortar joint positioning lines and the reinforcement positioning marks.

4. The double-slit laser synchronous wire laying method according to claim 3, characterized in that, Before controlling the laser projection device to project the mortar joint positioning marks of the current construction layer, a calibration step is also included: The laser level is controlled to project the first layer of mortar joint markings; The actual position of the first-layer mortar joint marking line was measured using the total station. The actual location is compared with the corresponding design location in the digital construction model data, and the initial positioning of the laser projection device is corrected based on the comparison results.

5. The double-slit laser synchronous wire laying method according to claim 1, characterized in that, The mortar joint positioning mark is a visible light strip mark with a preset width, which is related to the designed mortar joint thickness.

6. The double-slit laser synchronous wire laying method according to claim 3, characterized in that, The dynamic adjustment of projection parameters based on the actual state information of the constructed portion of the wall specifically includes: The actual elevation of the top surface of the current layer of masonry, which has been completed, is measured using the total station. Calculate the deviation between the actual elevation and the theoretical design elevation of the next construction layer; Based on the deviation, the projection elevation of the mortar joint positioning mark is compensated by adjusting the projection elevation angle or reference height of the laser level.

7. The double-slit laser synchronous wire laying method according to claim 6, characterized in that, After updating the mortar joint positioning line to the design position of the next construction layer, the method further includes: in ordinary construction layers where the anchor bar is not embedded, updating the mortar joint positioning line includes: controlling the laser level to automatically raise the projection elevation of the mortar joint positioning line according to the preset theoretical height of a single layer of masonry.

8. The double-slit laser synchronous wire laying method according to claim 1, characterized in that, The reinforcement positioning mark is visually distinguishable from the mortar joint positioning mark and is presented as a geometric shape that defines the area where the anchor reinforcement is embedded.

9. The double-slit laser synchronous wire laying method according to claim 1, characterized in that, After the synchronous superposition generates the anchorage markers for indicating the anchorage position, a verification step is also included: Based on the optical signal fed back by the laser projection device, it is determined whether the actual position of the anchor bar placed in the geometric area meets the preset positioning accuracy requirements. If it does not meet the requirements, a prompt message will be generated.

10. The double-slit laser synchronous wire laying method according to claim 1, characterized in that, The method is also applicable to wall structures with curves or slopes; The laser projection device dynamically adjusts the projection angle and shape of the mortar joint positioning line and the reinforcement positioning mark according to the positioning information corresponding to the curve or slope in the digital construction model data, so that they are adapted to the curved or sloped surface of the wall structure.

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