A laser level device for architectural decoration design

Abstract

This invention relates to the field of precision measuring equipment technology, and more particularly to a laser level device for architectural decoration design. The device comprises several cooperating laser leveling mechanisms. Each individual laser leveling mechanism includes a laser projection unit for projecting horizontal and vertical laser lines onto a target projection wall; a laser ranging unit for detecting the distance and angle between the target projection wall and the laser projection unit; a detection unit for projecting detection spots of various colors and acquiring image data of the detection spots, with the detection spots positioned at both ends of the horizontal laser line; a position adjustment unit for adjusting the longitudinal, lateral, and angle of the horizontal laser line relative to the wall; and a data processing unit for adjusting the parameters of the projected horizontal laser line based on the image data of the mixed light spots formed by the detection spots, so that multiple horizontal laser lines are interconnected to form a continuous horizontal laser line. This invention enables automatic and precise alignment of the horizontal laser lines during segmented projection.

Description

Technical Field

[0001] This invention relates to the field of precision measuring equipment technology, and in particular to a laser level device for architectural decoration design. Background Technology

[0002] A laser level (also known as a laser line projector) is an engineering surveying tool based on the principle of laser collimation. It uses a semiconductor laser to generate a visible laser beam, which is shaped by an optical lens group and projected to produce a high-precision horizontal line, vertical line, or intersecting reference line. Its core principle is to utilize the consistent direction and low divergence angle of the laser to form a persistent and bright baseline on a wall or ground, replacing traditional ink line projection or physical stringing methods.

[0003] Currently, laser levels require segmented projection when operating over long distances (such as corridors > 10m). The alignment of laser lines between adjacent devices relies on visual inspection, and misalignment at the joints often reaches 2mm to 3mm, which greatly reduces their accuracy.

[0004] Chinese Patent Publication No. CN110260847B discloses a laser level comprising: a housing, a fixing ring fixedly sleeved on the outer annular sidewall of the housing, a base fixedly connected to the bottom of the housing, a mounting base fixedly connected to the upper end of the base, a frame fixedly connected to the upper end of the mounting base, a control panel mounted on the upper end of the frame, the upper end of the control panel extending upward through the housing wall and equipped with control buttons, two connecting rods provided inside the frame, and a laser emitter connected to the frame via the two connecting rods, with a laser emission port opened on the housing wall corresponding to the position of the laser emitter. This invention enables the laser level to fix its swing arm when not in use or during transport, preventing damage to the swing arm and laser emitter due to collision caused by shaking, and also preventing wear on the edges of the counterweight.

[0005] Therefore, it is evident that the aforementioned laser level has the problem of difficulty in accurately aligning the horizontal laser line when projecting in segments. Summary of the Invention

[0006] To address this issue, the present invention provides a laser level device for architectural decoration design, which overcomes the problem in the prior art where, when using a laser level to calibrate a long horizontal line, the difficulty in accurately aligning the horizontal lines between multiple segments during the projection process results in a decrease in the accuracy of the laser horizontal line as the number of segments accumulates.

[0007] To achieve the above objectives, the present invention provides a laser leveling device for architectural decoration design, comprising: a plurality of laser leveling mechanisms working in concert to form a continuous horizontal laser line; for each individual laser leveling mechanism, it includes:

[0008] The laser projection unit includes a horizontal laser line projection module for projecting horizontal laser lines onto a target projection wall and a vertical laser line projection module for projecting vertical laser lines onto the target projection wall.

[0009] A laser ranging unit, which is connected to the laser projection unit, is used to detect the distance and angle between the target projection wall and the laser projection unit;

[0010] The detection unit includes a pair of detection spot projection modules disposed on both sides of the horizontal laser line projection module for projecting detection spots containing several colors, and a pair of image acquisition modules disposed on both sides of the horizontal laser line projection module for acquiring image data of the detection spots, wherein the detection spots are disposed at both ends of the horizontal laser line.

[0011] A position adjustment unit, which is connected to the laser projection unit, is used to adjust the longitudinal position, lateral position, and angle of the horizontal laser line projected by the laser projection unit relative to the target projection wall;

[0012] A data processing unit, which is connected to the laser projection unit, the laser ranging unit, the detection unit, and the position adjustment unit, is used to adjust the parameters of the horizontal laser line projected by the laser projection unit based on the image data of the mixed spot formed by the detection spot projected by the adjacent laser leveling mechanism and the detection spot projected by the laser leveling mechanism, which is acquired by the image acquisition module, so that the ends of the horizontal laser lines projected by the adjacent laser leveling mechanism and the horizontal laser lines projected by the laser leveling mechanism coincide, forming a continuous horizontal laser line.

[0013] Furthermore, for a single laser level device, it also includes:

[0014] A horizontal holding unit, which is connected to the position adjustment unit, is used to maintain the horizontality of the laser leveling mechanism;

[0015] A data transceiver unit, connected to the data processing unit, is used to share data among several laser leveling mechanisms to coordinate the formation of a continuous horizontal laser line among the laser leveling mechanisms.

[0016] Furthermore, the data processing unit determines the timing data of each laser leveling mechanism based on the activation sequence of the laser leveling mechanisms obtained by the data transceiver unit.

[0017] Furthermore, the data processing unit determines whether a single laser leveling mechanism is a master device or a slave device based on the time-series data, and determines the color of the detection spot projected by the detection spot projection module;

[0018] The detection spot of the slave device is different in color from that of its corresponding master device.

[0019] Furthermore, the data processing unit controls the position adjustment unit to make the laser projection unit parallel to the target projection wall based on the angle between the laser projection unit and the target projection wall measured by the laser ranging unit.

[0020] Furthermore, based on the determination that the device is currently a slave device, the data processing unit calculates the difference in width between the detection spot of the slave device and the detection spot of the master device according to the image data of the detection spot adjacent to the corresponding master device obtained by the image acquisition module, and adjusts the parameters of the laser projection unit of the slave device to project the horizontal laser line based on the width difference.

[0021] The width of the detection spot is the distance from the horizontal upper edge to the horizontal lower edge of the detection spot.

[0022] Furthermore, based on the determination result that the device is currently a slave device, the data processing unit determines the mixed spot area threshold according to the image data of the detection spot projected by the detection spot projection module acquired by the image acquisition module.

[0023] Furthermore, based on the determination that the current device is a slave device, the data processing unit controls the position adjustment unit to adjust the longitudinal position of the laser projection unit so that the detection spots of the slave device and the corresponding master device overlap or partially overlap to form the mixed spot.

[0024] Furthermore, based on the determination result that the current device is a slave device, the data processing unit controls the position adjustment unit to adjust the longitudinal position of the horizontal laser line projected by the laser projection unit relative to the target projection wall, so that the size of the mixed light spot of the slave device and the corresponding master device obtained by the image acquisition module changes continuously, and the longitudinal position of the laser projection unit of the slave device when the area of ​​the mixed light spot reaches its peak is determined as the longitudinal connection position.

[0025] Furthermore, based on the determination result that the current device is a slave device, and according to the determination result that the peak value of the mixed spot area is less than the mixed spot area threshold, the data processing unit controls the position adjustment unit to adjust the lateral position of the laser projection unit, and determines the lateral position corresponding to when the mixed spot area is greater than or equal to the mixed spot area threshold as the lateral connection position.

[0026] Compared with the prior art, the beneficial effects of the present invention are that, through multi-device collaborative control and mixed light spot mixed judgment, the present invention breaks through the limitation of single-machine projection distance, and forms a horizontal baseline without breaks or misalignments in large-span scenarios such as corridors and factories, which greatly improves the accuracy and efficiency of long-distance line laying construction and solves the industry pain point that traditional equipment needs to be frequently moved and aligned by the naked eye.

[0027] Furthermore, by integrating distance measurement and image acquisition, this invention can perceive the distance to the wall and the status of adjacent devices in real time, providing a data foundation for dynamic adjustment.

[0028] Furthermore, this invention simplifies the deployment process and eliminates the risk of errors in manual configuration by automatically assigning master and slave roles according to the startup order.

[0029] Furthermore, this invention, through the design of different colored light spots in master and slave devices, identifies overlapping areas through color mixing, enabling the analysis of horizontal laser line connections, and automatically captures the optimal height connection point through the curve of mixed light spot area change, achieving sub-millimeter-level vertical alignment.

[0030] Furthermore, this invention eliminates linewidth distortion caused by oblique projection by actively calibrating the horizontal angle between the laser and the wall, thus ensuring the stability of the far-end light spot size.

[0031] Furthermore, the present invention ensures uniform laser width across the entire line by using laser focusing based on the width difference between adjacent light spots, thus avoiding visual abrupt changes at the seams.

[0032] Furthermore, this invention provides a quantitative standard for spot mixing by setting a mixing area threshold based on the actual image area. When the vertical peak value does not meet the standard, horizontal compensation is activated. This dual protection mechanism addresses interference from complex wall structures and prevents image blurring at the joints due to insufficient length of the horizontal laser line connection. Attached Figure Description

[0033] Figure 1 This is a connection block diagram of the laser level device for architectural decoration design according to the present invention;

[0034] Figure 2 This is a schematic diagram of the horizontal laser line connection process of the laser level device for architectural decoration design of the present invention;

[0035] Figure 3 This is a schematic diagram of the mixed light spot of the laser level device for architectural decoration design according to the present invention;

[0036] In the diagram, 1-master device; 2-slave device; 3-horizontal laser line; 4-detection spot; 5-mixed spot. Detailed Implementation

[0037] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0038] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0039] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0040] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Specific embodiments are given below with reference to the accompanying drawings. These specific embodiments are only used to describe the technical solutions of the present invention in detail, and are not intended to limit the scope of protection of this application.

[0042] See Figures 1-3 The diagrams shown are, respectively, a connection block diagram of the laser level device for architectural decoration design of the present invention, a schematic diagram of the horizontal laser line connection process of the laser level device for architectural decoration design of the present invention, and a schematic diagram of the mixed light spot of the laser level device for architectural decoration design of the present invention.

[0043] This invention provides a laser level device for architectural decoration design, comprising:

[0044] Several laser level devices working in concert form a laser level group; for a single laser level device, including,

[0045] The laser projection unit includes a horizontal laser line projection module for projecting a horizontal laser line 3 onto a target projection wall and a vertical laser line projection module for projecting a vertical laser line onto the target projection wall.

[0046] In practice, the horizontal / vertical laser line projection module in the laser projection unit preferably uses a green semiconductor laser module with a divergence angle controlled at 0.5 mrad, so that the line width of the laser line is less than or equal to 2 mm within 5 m; the projection angle of the horizontal laser line projection module is 120°.

[0047] A laser ranging unit, which is connected to the laser projection unit, is used to detect the distance and angle between the target projection wall and the laser projection unit;

[0048] In practice, the laser ranging unit preferably employs a phase-type infrared ranging sensor.

[0049] The detection unit includes a pair of detection spot projection modules disposed on both sides of the horizontal laser line projection module for projecting detection spot 4 containing several colors, and a pair of image acquisition modules disposed on both sides of the horizontal laser line projection module for acquiring image data of the detection spot 4. The detection spot 4 is disposed at both ends of the horizontal laser line 3.

[0050] In implementation, the detection spot projection module projects the detection spot 4 along the maximum projection angle of the horizontal laser line 3 so that the detection spot 4 is located at both ends of the horizontal laser line 3. Preferably, its light source part adopts two laser diodes with red light and blue light respectively, and the beam processing part adopts a collimating lens to reduce the divergence angle of the laser diode. At the same time, a rectangular aperture and orthogonally arranged cylindrical lenses are used to expand the beam to obtain a rectangular detection spot 4.

[0051] Preferably, the size of the detection spot 4 is 10 times the linewidth of the horizontal laser line, and the length of the detection spot is 15 to 20 times the linewidth of the horizontal laser line.

[0052] In practice, the image acquisition module uses a CMOS image sensor, and its orientation is the same as that of the detection spot projection module.

[0053] A position adjustment unit, which is connected to the laser projection unit, is used to adjust the longitudinal position, lateral position, and angle of the horizontal laser line projected by the laser projection unit relative to the target projection wall;

[0054] In implementation, the position adjustment unit includes a longitudinal adjustment mechanism for adjusting the longitudinal position of the horizontal laser line 3 relative to the target projection wall, a lateral adjustment mechanism for adjusting the lateral position of the horizontal laser line 3 relative to the target projection wall, and an angle adjustment mechanism for adjusting the angle of the horizontal laser line 3 relative to the target projection wall; preferably, the longitudinal adjustment mechanism and the lateral adjustment mechanism adopt a 42 stepper motor and a ball screw; the angle adjustment mechanism adopts a worm gear structure.

[0055] A data processing unit, which is connected to the laser projection unit, the laser ranging unit, the detection unit, and the position adjustment unit, is used to adjust the parameters of the horizontal laser line projected by the laser projection unit based on the image data of the mixed spot formed by the detection spot projected by the adjacent laser leveling mechanism and the detection spot projected by the laser leveling mechanism, which is acquired by the image acquisition module, so that the ends of the horizontal laser lines projected by the adjacent laser leveling mechanism and the horizontal laser lines projected by the laser leveling mechanism coincide, forming a continuous horizontal laser line.

[0056] In practice, the data processing unit is equipped with a system clock chip to determine the timestamp when the laser level device is started.

[0057] Specifically, for a single laser level device, it further includes:

[0058] A horizontal holding unit, which is connected to the position adjustment unit, is used to maintain the horizontality of the laser leveling mechanism;

[0059] In practice, the horizontal holding unit preferably employs a magnetic damping compensation mechanism.

[0060] A data transceiver unit, connected to the data processing unit, is used to share data among several laser leveling mechanisms to coordinate the formation of a continuous horizontal laser line among the laser leveling mechanisms.

[0061] It is understood that the device used in the above-mentioned unit is a preferred embodiment of the present invention. Those skilled in the art can make adaptive substitutions to the device used in the above-mentioned unit while achieving the same effect, which will not be elaborated here.

[0062] Specifically, the data processing unit determines the timing data of each laser leveling mechanism based on the activation sequence of the laser leveling mechanisms obtained by the data transceiver unit.

[0063] In implementation, when any laser leveling mechanism is started, its data processing unit records the timestamp of the start-up and continuously broadcasts a network signal containing the timestamp through the data transceiver unit; it also receives network signals containing timestamps broadcast by other laser leveling mechanisms, compares the timestamps corresponding to each laser leveling mechanism, and sorts each laser leveling mechanism in ascending order according to time sequence to determine the time sequence data of each laser leveling mechanism; wherein, the timestamp is determined according to the system clock chip; and the time sequence data is a positive integer from 1 to n.

[0064] Specifically, the data processing unit determines whether a single laser leveling mechanism is the master device 1 or the slave device 2 based on the time series data, and determines the color of the detection spot 4 projected by the detection spot projection module.

[0065] The detection spot 4 of the slave device 2 is different in color from that of the corresponding master device 1.

[0066] In practice, the laser leveling mechanism is activated sequentially from the middle of the target horizontal laser line outwards to both ends. For example, there are a total of 7 laser leveling mechanisms set from left to right, and their corresponding timing data from left to right can be 7, 5, 3, 1, 2, 4, 6, or 6, 4, 2, 1, 3, 5, 7.

[0067] Understandably, this startup sequence can minimize the distance between the horizontal laser line 3 projected by the first laser leveling mechanism and the end of the target horizontal laser line, thereby reducing the error caused by the horizontal tilt angle of the horizontal laser line 3 projected by the first laser leveling mechanism, which will not be elaborated here. At the same time, this startup sequence also allows the laser leveling mechanism to determine its position relative to other laser leveling mechanisms without using any positioning device, so as to determine its master or slave device status.

[0068] In implementation, the determination of the identity of the laser leveling mechanism as the master device 1 or slave device 2 relative to other laser leveling mechanisms specifically involves:

[0069] When its own time series data T m When T ≤ 2, if T m =1, then it is the main device 1; if T m =2, then the laser leveling mechanism with T=1 is the main device 1 relative to itself;

[0070] When its own time series data T m When T > 2, then T = T m The laser leveling mechanism at -2 is the main device 1 relative to itself;

[0071] Among them, T m T represents the time series data of any laser leveling mechanism itself; T represents the time series data of any other laser leveling mechanism.

[0072] It is understandable that, since the activation sequence is from the middle of the target horizontal laser line outwards to both ends, for any T... m For laser leveling mechanisms with a value greater than 2, the time series data is T. m The laser leveling mechanism of -2 is always the one that started earlier and is adjacent to the laser leveling mechanism, and thus it is the main device 1 relative to itself.

[0073] Specifically, after completing the judgment of the master device 1 and the slave device 2, the data processing unit can know the judgment result of its own master device 1 or slave device 2, and perform the connection operation of the horizontal laser line 3 accordingly based on the current judgment result of slave device 2 or master device 1.

[0074] It is understandable that the horizontal laser line 3 of the main device 1 with timing data 1 is the reference laser line, which can be set using any existing technology. After the setting is completed, the horizontal laser line 3 is used as the basis for other laser leveling mechanisms to project continuous laser lines.

[0075] In implementation, the determination of the color of the detection spot 4 projected by the detection spot projection module is specifically as follows:

[0076] For any T m Laser leveling mechanism ≠1

[0077] When (T) m When mod4)∈{2,3}, the color of the detection spot 4 of the laser leveling mechanism is similar to T. m The detection spot 4 of the laser leveling mechanism with a value of 1 has a different color;

[0078] When (T) m When mod4)∈{0,1}, the color of the detection spot 4 of the laser leveling mechanism is similar to T. m The detection spot 4 of the laser leveling mechanism with a value of 1 has the same color.

[0079] It is understandable that when different colored light spots overlap, they can form a mixed color in the overlapping area that is distinct from the individual colors, which will not be elaborated further here.

[0080] The present invention also provides an embodiment in which the laser leveling mechanism is activated sequentially from the middle of the target horizontal laser line towards one end, and then sequentially from the middle towards the other side. For example, a total of 7 laser leveling mechanisms are set from left to right, and their corresponding timing data from left to right are 4, 3, 2, 1, 5, 6, 7, or 7, 6, 5, 1, 2, 3, 4.

[0081] In implementation, the determination of the identity of the laser leveling mechanism relative to other laser leveling mechanisms as the master device 1 or slave device 2 is specifically as follows:

[0082] When its own time series data T m When =1, it is itself the main device 1;

[0083] When its own time series data T m When T = 5, then T m =1 laser leveling mechanism is the main device 1 relative to itself;

[0084] When its own time series data T m When T > 1, then T = T m The laser leveling mechanism of -1 is the main device 1 relative to itself;

[0085] In practice, the determination of the color of the detection spot 4 projected by the detection spot projection module in this embodiment is specifically as follows: the color of the detection spot 4 of the laser leveling mechanism is different from the color of the detection spot 4 of its corresponding main device 1.

[0086] This invention distinguishes between the master device 1 and the slave device 2 using time-series data, ensuring that the laser horizontal line 3 of the later-started laser leveling mechanism is always adjusted based on the laser horizontal line 3 of the previously started adjacent laser leveling mechanism, thus connecting them to form the target horizontal laser line. Simultaneously, by distinguishing the positions of the laser leveling mechanisms using time-series data, the color of the detection spot 4 of any laser leveling mechanism is always different from the color of the detection spot 4 of its adjacent laser leveling mechanism, thereby ensuring that the color of the detection spot 4 of any slave device 2 is different from the color of the detection spot 4 of its opposite master device 1, thus obtaining a mixed color spot 5.

[0087] Specifically, the data processing unit controls the position adjustment unit to make the laser projection unit parallel to the target projection wall based on the angle between the laser projection unit and the target projection wall measured by the laser ranging unit.

[0088] In practice, after the laser ranging unit measures the distance between the laser projection unit and the target projection wall, the laser ranging unit is rotated by a preset angle through the position adjustment unit to measure a new distance. Based on the distances measured before and after and the preset angle of rotation, the offset angle between the laser projection unit and the target projection wall is calculated by a trigonometric function formula. The position adjustment unit is then controlled to rotate the laser projection unit in the opposite direction according to the offset angle so that it is parallel to the target projection wall.

[0089] It is understood that the above-mentioned method for measuring the offset angle between the laser projection unit and the target projection wall is a preferred embodiment of the invention. Those skilled in the art can make adaptive replacements to the above-mentioned offset angle measurement method while achieving the same effect, which will not be elaborated here.

[0090] Specifically, based on the determination that the current device is slave device 2, the data processing unit calculates the difference in width between the detection spot 4 of the slave device 2 and the detection spot 4 of the master device 1 according to the image data of the detection spot 4 adjacent to the corresponding master device 1 obtained by the image acquisition module, and adjusts the parameters of the laser projection unit of the slave device 2 to project the horizontal laser line 3 based on the width difference.

[0091] The width of the detection spot 4 is the distance from the horizontal upper edge to the horizontal lower edge of the detection spot 4.

[0092] In implementation, the data transceiver unit of the main device 1 sends the width data of the detection spot 4 in the image data obtained by the image acquisition module to the slave device 2; the calculation formula for the width difference is as follows:

[0093] Δw=w 主 -w 从 ,

[0094] Where △w is the width difference, in millimeters (mm); w 主 The width of the detection spot 4 of the main device 1, in millimeters (mm); w 从 The width of the detection spot 4 from device 2 is expressed in millimeters (mm).

[0095] When △w≥0.3mm, adjust the focal length of the horizontal laser line 3 projected from the laser projection unit of device 2. Preferably, it is determined by experiment that each millimeter width difference needs to compensate for a focal length change of 0.1mm. It can also be adjusted according to the applicability of specific equipment parameters, as long as the width difference of the detection spot 4 projected from the laser projection unit of device 2 can be adjusted to <0.3mm, or adjusted to the allowable deviation range of the specific scene. It will not be elaborated here.

[0096] It is understandable that the width of the detection spot 4 can synchronously reflect the line width of the horizontal laser line 3. By adjusting the projection focal length of the horizontal laser line 3 according to the width difference of the detection spot 4 of the master-slave device 2, the line width of the horizontal laser line 3 projected by each laser leveling mechanism can be made uniform.

[0097] Specifically, the data processing unit determines the mixed spot area threshold based on the judgment result of the current slave device 2 and the image data of the detection spot 4 projected by the detection spot projection module acquired by the image acquisition module.

[0098] In implementation, the data processing unit calculates the area of ​​the detection spot 4 in the image data of the detection spot 4 acquired by the image acquisition module; the specific formula for calculating the mixed spot area threshold is as follows:

[0099] S min =k×S c ,

[0100] Among them, S min The mixed spot area threshold is expressed in square millimeters (mm). 2 ); k is the threshold coefficient, preferably 0.2; S c The area of ​​detection spot 4 in the image data acquired by the image acquisition module is expressed in square millimeters (mm). 2 ).

[0101] It is understandable that when the peak value of the mixed spot 5 is small, it indicates that the adjacent horizontal laser lines 3 are far apart laterally and the length of their connection part is insufficient. Therefore, the mixed spot area threshold is set based on the area of ​​the detection spot 4 to provide a basis for adjusting the lateral position of the device 2. At the same time, since the area of ​​the image acquired by the image acquisition module is not the actual area, the mixed spot area threshold is set based on the area of ​​the detection spot 4 in the image data of the detection spot 4 acquired by the image acquisition module to avoid errors caused by image distortion.

[0102] Specifically, based on the determination result that the current device is slave device 2, the data processing unit controls the position adjustment unit to adjust the longitudinal position of the laser projection unit so that the detection spot 4 of slave device 2 and the corresponding master device 1 overlap or partially overlap to form the mixed spot 5.

[0103] In practice, the data processing unit of the slave device 2 controls the position adjustment unit to adjust the longitudinal position of the laser projection unit. Preferably, the laser projection unit moves upward at a constant speed for 30mm from the current longitudinal position as the origin, then returns to the origin at a constant speed and moves downward at a constant speed for 30mm.

[0104] Understandably, since the degree of misalignment between the horizontal laser lines 3 projected by the master device 1 and the slave device 2 is unknown, the slave device 2 is controlled to move at a larger longitudinal position to ensure that the maximum value of the true mixed spot 5 can be detected.

[0105] Specifically, based on the determination that the current device is slave device 2, the data processing unit controls the position adjustment unit to adjust the longitudinal position of the horizontal laser line 3 projected by the laser projection unit relative to the target projection wall, so that the size of the mixed light spot 5 of slave device 2 and corresponding master device 1 obtained by the image acquisition module changes continuously, and the longitudinal position of the laser projection unit of slave device 2 when the area of ​​the mixed light spot 5 reaches its peak is determined as the longitudinal connection position.

[0106] In practice, the color of the mixed light spot 5 is determined based on the color data of the detection light spot 4 of the master and slave devices. Preferably, when the colors of the detection light spot 4 are red and blue, the mixed light spot 5 is magenta (purple).

[0107] Specifically, based on the determination result of the current slave device 2, the data processing unit controls the position adjustment unit to adjust the lateral position of the laser projection unit according to the determination result that the peak value of the detected mixed spot 5 area is less than the mixed spot 5 area threshold, and determines the lateral position corresponding to when the mixed spot 5 area is greater than or equal to the mixed spot 5 area threshold as the lateral connection position.

[0108] In implementation, when the data processing unit of the slave device 2 controls the position adjustment unit to adjust the lateral position of the laser projection unit, preferably, it moves 30mm to the left at a constant speed from the current lateral position as the origin, then returns to the origin at a constant speed, and then moves 30mm to the right at a constant speed. The specific value of this movement range can also be determined based on the minimum distance between the centers of the detection spots of the master device and the slave device.

[0109] It is understandable that, since the relative positions of the horizontal laser lines 3 projected by the master device 1 and the slave device 2 are unknown, the slave device 2 is controlled to move in a larger lateral position to ensure that the horizontal laser line 3 of the slave device 2 moves closer to the horizontal laser line 3 of the master device 1.

[0110] At this point, by adjusting the horizontal laser line of the slave device to the corresponding position at the horizontal and vertical connection positions, the connection of the horizontal laser lines of a set of master devices and adjacent slave devices is completed. After completion, the slave device is used as the master device, and according to the adjacent relationship between the master and slave devices obtained above, the connection of the horizontal laser lines of each set of master devices and adjacent slave devices is completed in sequence according to the order of the time sequence data. The connection method is the same as above. After all slave devices have been connected, it is determined that a continuous horizontal laser line has been formed.

[0111] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A laser level device for architectural finishing design, characterized by, The laser leveling mechanism comprises a plurality of laser leveling mechanisms which work cooperatively to form a continuous horizontal laser line. For a single laser leveling mechanism, the laser leveling mechanism comprises, a laser projection unit comprising a horizontal laser line projection module for projecting a horizontal laser line on a target projection wall and a vertical laser line projection module for projecting a vertical laser line on the target projection wall; a laser distance measuring unit connected to the laser projection unit for detecting the distance and angle between the target projection wall and the laser projection unit; a detection unit comprising a pair of detection light spot projection modules for projecting detection light spots of a plurality of colors on both sides of the horizontal laser line projection module and a pair of image acquisition modules for acquiring image data of the detection light spots on both sides of the horizontal laser line projection module, the detection light spots being arranged at both ends of the horizontal laser line; a position adjustment unit connected to the laser projection unit for adjusting the longitudinal position, lateral position and angle of the horizontal laser line projected by the laser projection unit relative to the target projection wall; a data processing unit connected to the laser projection unit, the laser distance measuring unit, the detection unit and the position adjustment unit respectively for adjusting the parameters of the horizontal laser line projected by the laser projection unit according to the image data of the mixed light spot formed by the detection light spots projected by the adjacent laser leveling mechanism and the detection light spots projected by the laser leveling mechanism, so that the horizontal laser line projected by the adjacent laser leveling mechanism and the horizontal laser line projected by the laser leveling mechanism coincide at the ends to form a continuous horizontal laser line.

2. The laser level device for architectural finish design of claim 1, wherein, Further comprising: a horizontal maintaining unit connected to the position adjustment unit for maintaining the horizontal of the laser leveling mechanism; a data transceiver unit connected to the data processing unit for sharing data among a plurality of laser leveling mechanisms to cooperatively form a continuous horizontal laser line.

3. The laser level device for architectural finish design of claim 2, wherein, The data processing unit determines the timing data of each laser leveling mechanism according to the start-up sequence of the plurality of laser leveling mechanisms obtained by the data transceiver unit.

4. The laser level device for architectural finish design of claim 3, wherein, The data processing unit determines whether a single laser leveling mechanism is a master device or a slave device and the color of the detection light spot projected by the detection light spot projection module according to the timing data. The color of the detection light spot of the slave device is different from that of the master device corresponding to the slave device.

5. The laser level device for architectural finish design of claim 4, wherein, The data processing unit controls the position adjustment unit to make the laser projection unit parallel to the target projection wall according to the included angle between the laser projection unit and the target projection wall measured by the laser distance measuring unit.

6. The laser level device for architectural finish design of claim 5, wherein, The data processing unit calculates the difference in width of the detection light spot of the slave device relative to the detection light spot of the master device based on the image data of the detection light spot adjacent to the master device obtained by the image acquisition module according to the determination result that the slave device is currently a slave device, and adjusts the parameters of the horizontal laser line projected by the laser projection unit of the slave device based on the width difference. The width of the detection light spot is the distance between the horizontal upper edge and the horizontal lower edge of the detection light spot.

7. The laser level device for architectural finish design of claim 6, wherein, The data processing unit determines a mixed light spot area threshold value based on image data of a detection light spot projected by the detection light spot projection module and acquired by the image acquisition module.

8. The laser level device for architectural finish design of claim 7, wherein, The data processing unit controls the position adjustment unit to adjust the longitudinal position of the laser projection unit based on the determination result that the slave device is currently a slave device, so that the detection light spots of the slave device and the corresponding master device coincide or partially coincide to form the mixed light spot.

9. The laser level device for architectural finish design of claim 8, wherein, The data processing unit controls the position adjustment unit to adjust the longitudinal position of the horizontal laser line projected by the laser projection unit relative to the target projection wall based on the determination result that the slave device is currently a slave device, so that the mixed light spot size of the slave device and the corresponding master device obtained by the image acquisition module continuously changes, and determines the longitudinal position of the laser projection unit of the corresponding slave device when the mixed light spot area reaches a peak value as the longitudinal connection position.

10. The laser level device for architectural finish design of claim 9, wherein, The data processing unit controls the position adjustment unit to adjust the transverse position of the laser projection unit based on the determination result that the peak value of the mixed light spot area is less than the mixed light spot area threshold value, and determines the transverse position corresponding to the case where the mixed light spot area is greater than or equal to the mixed light spot area threshold value as the transverse connection position.

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