Laser marking device with line length identification function and control system

Abstract

The invention relates to the field of laser measurement electronic equipment, in particular to a laser line marking device with a line length marking function and a control system, and the laser line marking device comprises a main marking port and a transmitting end internally provided with a laser line marking instrument; the main distance measuring ports are formed in multiple sides of the main identification port, a transmitting end of a laser distance measuring instrument is arranged in each main distance measuring port, and the main distance measuring ports are parallel to the main identification port; the auxiliary identification openings are formed in the two sides of the main identification opening, are arranged in the same horizontal plane with the main identification opening, are symmetrically distributed along the main identification opening, and are internally provided with a transmitting end of a laser marking instrument; and the plurality of auxiliary distance measuring ports are arranged corresponding to the two auxiliary identification ports, the plurality of auxiliary distance measuring ports of the two auxiliary identification ports are in one-to-one correspondence, every two corresponding auxiliary distance measuring ports are arranged in the same horizontal plane, and a transmitting end of a laser range finder is arranged in each auxiliary distance measuring port. The device has the advantages that the straightness measurement function and the distance measurement function of the marking line are combined on one instrument, and more requirements of a user in the aspects of measurement and positioning are met.

Description

Technical Field

[0001] The present application relates to the field of laser measurement electronic equipment, and in particular to a laser marking device and a control system with a line length marking function. Background Art

[0002] Laser marking instrument is an instrument that uses laser beam to project straight lines. It is widely used in construction, decoration, machinery manufacturing and other industries for measurement and positioning. Distance meter is an instrument used to measure the distance between two points, usually using ultrasonic, infrared or laser. DLP (digital light processing) or galvanometer are two common programmable display devices that can be used to control the emission direction and intensity of laser light source.

[0003] In the prior art, laser markers can usually only be used to measure the straightness of the marking line and cannot provide more measurement information. A rangefinder can measure the distance between two points, but it cannot combine the measurement result with the marking line of the laser marking instrument, and it cannot intuitively display the position of the measurement result on the marking line.

[0004] Therefore, common laser markers have a single function and can only display the straightness of the marking line, which cannot meet users' more demands in measurement and positioning. Although common distance meters can measure distance, they cannot measure the length of the marking line. Users need to measure and mark on the marking line by themselves, which is inconvenient to operate and prone to errors. In addition, existing programmable display devices such as DLP or galvanometers can control the emission direction and intensity of the laser light source, but cannot be linked with the distance meter, and users cannot synchronously mark the position of the measurement results on the marking line. Summary of the invention

[0005] In order to combine the functions of laser line straightness marking, distance measurement and line laser length marking in one set of instruments to meet users' more demands in measurement and positioning, the present application provides a laser marking device and control system with line length marking function.

[0006] On the one hand, the present application provides a laser marking device with a line length marking function, which adopts the following technical solution: A laser marking device with a line length marking function, comprising: The main marking port is equipped with a transmitting end of a laser marking instrument to emit a marking laser line; Main distance measuring ports are arranged on multiple sides of the main identification port, each of which has a transmitting end of a laser distance measuring device arranged inside, and the main distance measuring ports are parallel to the main identification port and emit distance measuring laser lines; Auxiliary marking ports are arranged on both sides of the main marking port and are arranged in a horizontal plane with the main marking port. An angle is formed between the two auxiliary marking ports and the main marking port. The auxiliary marking ports are symmetrically distributed along the main marking port. The transmitting end of the laser marking instrument is arranged inside the auxiliary marking ports to emit a marking laser line. A plurality of auxiliary ranging ports are provided corresponding to the two auxiliary identification ports, and the plurality of auxiliary ranging ports of the two auxiliary identification ports are provided correspondingly and arranged in a horizontal plane, and a transmitting end of a laser rangefinder is provided inside the auxiliary ranging port to emit a ranging laser line; A control component is connected to the main identification port, the main ranging port, the auxiliary identification port, and the auxiliary ranging port for data processing.

[0007] By adopting the above technical solution, the laser marking instrument is combined with the laser rangefinder. To achieve the technical effects of ranging and collimation at the same time, an additionally designed device is required. In the above solution, four types of laser emission ports are set on the outer shell of the device, namely, the main marking port, the main ranging port, the auxiliary marking port, and the auxiliary ranging port. Among them, the main marking port is set close to the main ranging port, and a laser emission end is set inside the main marking port to emit a collimated laser line, which is the main structure of the laser display device. The main ranging port is set on multiple sides of the main marking port, that is, the number of main ranging ports is not less than two, and the two main ranging ports can be set on adjacent sides. Therefore, when the marking laser line is emitted, the two ranging laser lines or one of the ranging laser lines are emitted concomitantly, and the distance is marked while the laser line is collimated. On this basis, the main ranging ports are set on multiple sides of the main marking port, that is, a marking laser line can be set on multiple sides of a ranging laser line. When the marking end point is located at the edge of a marked object, when the ranging laser line on one side is separated from the marked object, the ranging laser line on the other side can be replaced; Considering that laser marking instruments are widely used in the construction industry, the setting of the auxiliary marking port and the auxiliary ranging port is used to measure whether the plate-like object is tilted under the combined effect of ranging and collimation. The most intuitive application is to measure whether the wall surface is flat. The specific principle is to use the auxiliary ranging port to emit ranging lasers in two horizontal tilt directions symmetrical along the main marking port. If the wall surface is flat, the values ​​obtained by the laser rangefinders of the two auxiliary ranging ports should be the same when the two horizontal tilt angles are the same. If the wall surface is uneven, the control component roughly estimates the tilt angle based on the calculation results of the two ranging values. In the above scheme, the laser can be at any reasonable angle. It is actually recommended that the angle between the ranging laser of the secondary ranging port and the marking laser line of the main marking port be 30°-60°.

[0008] Optionally, the secondary ranging ports are provided in no less than two groups.

[0009] By adopting the above technical solution, the secondary ranging port is tilted. Considering the actual situation, the ranging laser at the secondary ranging port may face the same problem as the main ranging port. Therefore, two secondary identification ports are set to correspond to multiple groups of secondary ranging ports. In order to save operating costs, one auxiliary marking laser rangefinder on one side should be operated at the same time, and the corresponding auxiliary marking laser on the other side should be operated. The two auxiliary ranging lasers operating at the same time should be in the same horizontal plane. When one of the distance measuring lasers is outside the edge of the distance measuring object and cannot effectively measure the distance, replace the laser distance meter of the other set of distance measuring ports.

[0010] Optionally, one of the secondary identification ports and its corresponding plurality of secondary ranging ports form a group; Also includes: The adjustment component is used to adjust the inclination angles of the two groups of auxiliary identification ports and the auxiliary ranging ports.

[0011] By adopting the above technical solution, the adjustment component is used for adjusting the angles of the two marking ports. When measuring whether the target surface is flat, the relevant personnel can measure multiple groups of offset angles of the horizontal offset of the target surface by continuously changing the angle of the laser ranging to improve the measurement accuracy; or, when the target surface is uneven, the relevant personnel can appropriately adjust the inclination angles of the two marking ports to minimize the measurement error. When the target surface is small or large, the relevant personnel can also change the two sets of auxiliary ranging ports to adapt to the width range of the target surface area to avoid the two sets of auxiliary identification lasers and two sets of auxiliary ranging lasers offset from the target surface; Furthermore, the adjustment component can be realized by electronic control.

[0012] On the one hand, the present application provides a control system for a laser marking device with a line length marking function, which adopts the following technical solutions: A control system for a laser marking device with a line length marking function, comprising a central processing module, a marking module, a distance measurement module, and a display interaction module; The central processing module is used for data processing, calculation and instruction transmission and reception, and controls the operation status of the identification module, the distance measurement module, the display interaction module and the adjustment component; The identification module controls the transmitting end of the laser marking instrument in the main identification port and the auxiliary identification port, receives the instruction of the central processing module, and changes the operation state of the laser marking instrument; The distance measuring module controls the transmitting end of the laser marking instrument in the main distance measuring port and the auxiliary distance measuring port, receives the instruction of the central processing module, and changes the operation state of the laser distance measuring instrument; The display interaction module is connected to the central processing module, displays the data processing results of the central processing module, and provides a human-computer interaction function. The control personnel can retrieve the command records and data records of the central processing module in real time, type in instructions, and control the operation of the representation module and the ranging module through the central processing module.

[0013] By adopting the above technical solution, the central processing module is the main module for data processing and instruction receiving and sending of the control system. In practical applications, a DSP chip (digital signal processing chip) or a CPU (central processing unit) is generally selected. The central processing module processes the data of the identification module and the ranging module, and then sends it to the display interaction module so that relevant personnel can be informed immediately; The distance measurement module is used to control the operation status of the laser distance meter inside the main distance measurement port and the auxiliary distance measurement port. The identification module is used to control the operation status of the identification laser meter inside the main identification port and the auxiliary identification port. The central processing module sends instructions to the distance measurement module and the identification module to put the distance measurement module and the identification module in a controllable state. In addition, relevant personnel can provide a display interaction module with human-computer interaction function to provide a channel for relevant personnel to enter instructions, so that the ranging module and the identification module can operate according to the instructions of the relevant personnel.

[0014] Optionally, the central processing module includes a judgment unit: The judgment unit is connected to the distance measuring module, receives the measurement information of multiple laser rangefinders in the main distance measuring port and the auxiliary distance measuring port in real time, judges the validity of the distance measuring information, and uploads the judgment result to the central processing module in real time.

[0015] By adopting the above technical solution, the judgment unit is used to judge whether the multiple groups of ranging results of the main ranging port and the secondary identification port are valid. The data difference abnormality can be used as the basis for the judgment of the judgment unit. The relevant personnel can preset the maximum difference corresponding to the secondary ranging port in the judgment unit. When the judgment unit detects that the numerical difference on both sides of the secondary ranging module is greater than the preset maximum difference, it should choose to discard the group of ranging data, and change the angle of the other side data by adjusting the component. This process is automatically completed. After the judgment is completed by the judgment unit, the value is uploaded to the central processing module, and the central processing module automatically sends a control instruction to the adjustment component to make an adjustment.

[0016] Optionally, a prompt module is also included; The prompt module is connected to the judgment unit and the display interaction module. When the display interaction module displays the judgment result, the prompt module prompts relevant personnel according to the judgment result of the judgment unit.

[0017] By adopting the above technical solution, after the above judgment unit makes a judgment on some invalid data, the prompt module can make a sound prompt or a picture prompt through the above prompt module, thereby improving the sensitivity of relevant personnel to information; For example, when the judgment module determines that the difference in ranging data of a certain group of secondary ranging ports is too large, or detects that the target surface is tilted horizontally at a certain angle, the display interaction module displays the relevant screen, or displays relevant information through relevant components such as prompt lights.

[0018] Optionally, the central processing module further includes: An execution storage unit is pre-stored with an executable file compiled by a control personnel. After the central processing module completes data calculation, the executable file generates corresponding instructions according to the data calculation results to control the ranging module and the identification module.

[0019] By adopting the above technical solution, the executable file pre-stored in the execution storage unit is obtained by the control personnel in advance according to the algorithm programming and compilation; firstly, when the executable file is running, the central unit brings in the data collected by the ranging module, performs calculations, and obtains results; secondly, the central processing module generates corresponding instructions according to the calculation data brought into another executable file, so as to realize the controllable rotation of the two identification ports and the auxiliary ranging ports in the laser marking device.

[0020] Optionally, the identification module includes: The main identification unit controls the laser marking instrument in the main identification port to change the operation state of the laser marking instrument; The secondary identification unit controls the laser marking instrument in the secondary identification port to change the operation state of the laser marking instrument; The ranging module comprises: A main distance measuring unit, correspondingly controlling the laser distance measuring device in the main distance measuring port, and changing the operation state of the laser distance measuring device; The auxiliary ranging unit controls the laser rangefinders in each two corresponding auxiliary ranging ports and changes the operating state of each group of laser rangefinders at the same time.

[0021] By adopting the above technical solution, the functions of the identification modules are refined and matched one to one, thus strengthening the hierarchical logic of the system and facilitating the allocation of control instructions.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. This application uses the main identification port, the main distance measurement port, the auxiliary identification port, the auxiliary distance measurement port and the control component to measure the length of the identification laser line while marking the laser line, thereby increasing the measurement range of the laser line, simplifying the operation difficulty of the laser distance measurement device and improving the convenience of use; 2. The present application is provided with a main ranging port and a secondary ranging port, which can measure the length of different positions of the marking laser line while marking the laser line, thereby improving the measurement accuracy and making the laser rangefinder more applicable; 3. This application is equipped with a display interaction module that can visualize the measurement results, making it easier for users to read the measurement results intuitively and improving ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0024] Figure 2 It is a schematic diagram used to illustrate the principle of measuring the inclination of the target surface in the embodiment of the present application.

[0025] Figure 3 It is a control logic block diagram of the control system in the embodiment of the present application.

[0026] Explanation of the accompanying drawings: 1. outer shell; 11. main identification port; 12. main ranging port; 13. secondary identification port; 14. secondary ranging port; 2. central processing module; 21. execution storage unit; 22. judgment unit; 3. display interaction module; 4. identification module; 41. main identification unit; 41. secondary identification unit; 5. ranging module; 51. main ranging unit; 52. secondary ranging unit; 6. prompt module. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] The present application embodiment first discloses a laser marking device with a line length marking function. Figure 1 A laser marking device with a line length marking function includes an outer shell, a main groove is opened on one side of the outer shell 1, and sub-grooves are opened on both sides of the main groove. The sub-grooves are symmetrically arranged along the central part of the main groove. The main groove is provided with a main marking port 11 and a main ranging port 12 for marking straightness and ranging functions, which are the main components of the laser marking device; each sub-groove is provided with a sub-marking port 13 and a sub-ranging port 14, which are function expansion components of the laser marking device.

[0029] Reference Figure 1, one main identification port 11 is set in the center of the main slot, and multiple main ranging ports 12 are set in the main slot. The main ranging ports 12 are distributed on multiple sides of the main identification port 11 in the main slot. Therefore, no less than two main ranging ports 12 need to be set. When two main ranging ports 12 are set, they should be distributed on adjacent sides of the main identification port 11. Generally speaking, if the design cost is sufficient, one main ranging port 12 can be set on the upper, lower, left and right sides of the main identification port 11. In this embodiment, the main identification port 11 is embedded with a laser emitting end of a laser marking instrument, and the main ranging port 12 is embedded with a laser emitting end of a laser ranging instrument. Therefore, when the main identification port 11 is in operation, multiple main ranging ports 12 can be operated simultaneously, or any one of the multiple ranging ports can be operated. The effect of setting one main ranging port 12 on multiple sides is that when one of the ranging ports makes the measured data invalid due to the measurement end point, another main ranging port 12 can be replaced to emit the laser at another part of the object at the measurement end point to ensure the measurement validity of the data. A control component is disposed inside the outer shell 1, and the control component is used to calculate data. After the data is measured at the main distance measuring port 12, it is sent to the control component, and the control component obtains specific distance data after calculation.

[0030] Reference Figure 1 and Figure 2 , there is one auxiliary marking port 13 in the auxiliary slot, and multiple auxiliary ranging ports 14 are provided corresponding to the auxiliary marking port 13. The number of auxiliary ranging ports 14 is not less than two, and they are distributed on multiple sides of the auxiliary marking port 13. When the number of auxiliary ranging ports 14 is two, the two auxiliary ranging ports 14 are evenly distributed on the upper and lower sides of the auxiliary marking port 13. A laser marking instrument for marking the collimation line is provided inside the auxiliary marking port 13, and a laser ranging instrument is provided inside the auxiliary ranging port 14. The multiple auxiliary ranging ports 14 in the two auxiliary slots are provided one by one, that is, the auxiliary ranging ports 14 at relative positions are a group. When the laser marking instruments in the two auxiliary marking ports 13 are in operation, the two laser ranging instruments in at least one group of auxiliary ranging ports 14 are operated simultaneously. On the basis of the collimation function, the laser ranging instruments in the two auxiliary ranging ports 14 and the laser marking instruments in the two auxiliary marking ports 13 can measure and estimate the inclination angle of the target surface. After combining the traditional collimation and ranging functions, the functions can also be expanded to the side, that is, estimating the inclination angle of the target surface. The principle of estimating the inclination angle of the target surface is as follows: when the ranging results of the two ranging ports 14 are different, the smaller side data of the ranging values ​​of the two ranging ports 14 is selected as a, and then the difference x of the ranging values ​​on both sides is calculated, and the angle α between the two ranging ports 14 is calculated by a mathematical algorithm. The correct spacing y between the laser ends of the two ranging ports 14 is calculated, and then the horizontal offset angle of the wall is calculated according to the relationship between x and y. These calculations are all completed by the control component.

[0031] Reference Figure 1The adjustment component is arranged inside the outer shell 1, and is used to adjust the horizontal angles of the two auxiliary identification ports 13 and the auxiliary ranging ports 14 in the two auxiliary grooves. To this end, the auxiliary grooves should be provided with an adaptation width to provide rotation space for the auxiliary identification ports 13 and the auxiliary ranging ports 14; when the target surface area is large, the relevant personnel control the rotation of the auxiliary identification ports 13 and the auxiliary ranging ports 14 to adapt to the area of ​​the target surface; in this embodiment, the adjustment component can be realized by a rotating shaft, that is, the adjustment component includes a rotating shaft, and an electrically controlled gear group is arranged inside the outer shell 1, and a gear engaging with the gear group is arranged at the end of the rotating shaft to realize the rotation of the electrically controlled auxiliary identification ports 13 and the auxiliary ranging ports 14.

[0032] After the distance and angle are finally determined, the equal distance mark is marked or adjusted by DLP or laser galvanometer, and the laser line spot is displayed on the display screen. The implementation principle of a laser marking device with a line length marking function in the embodiment of the present application is as follows: the user can select whether to open the auxiliary marking port 13 according to the function. When only the collimation and distance measurement functions are required, the main distance measurement port 12 and the main marking port 11 are opened. When the distance, collimation or inclination of the target surface is additionally measured, the auxiliary marking port 13 is opened. In order to save operating costs, generally only one main distance measurement port 12 and a group of auxiliary marking ports 13 are opened, and there is no need to switch when it is not necessary or the data is valid.

[0033] The embodiment of the present application discloses a control system for a laser marking device with a line length marking function, which is applied to the above-mentioned laser marking device with a line length marking function to control the operation of the laser marking device. Figure 3 A control system for a laser marking device with a line length marking function includes a central processing module 2, a display interaction module 3, a prompt module 6, an identification module 4, and a distance measurement module 5, wherein the central processing module 2 is the central processing part of the control system, and performs functions such as numerical judgment, data calculation, and instruction reception and transmission. The display interaction module 3 is connected to the central processing module 2, and generally selects a programmable display device such as DLP and a galvanometer, which can be matched with an operation button to display the data calculated by the central processing module 2 and display it to the control personnel. The control personnel enters the corresponding instructions according to the screen display results to control the instant operation of the laser marking device; the identification module 4 corresponds to controlling the operation of the laser marking instrument inside the main and auxiliary identification ports 13 of the above-mentioned laser marking device, and the distance measurement module 5 corresponds to controlling the operation of the laser distance meter inside the main and auxiliary identification ports 13 of the above-mentioned laser marking device. The identification module 4 and the distance measurement module 5 receive instructions from the central processing module 2 to control the operation status of the laser distance meter and the laser marking instrument.

[0034] Reference Figure 3The identification module 4 includes a main identification unit 41 and a secondary identification unit 41. The main identification unit 41 is used to control the operation of the laser marking instrument in the main identification port 11, and the secondary identification unit 41 is used to control the operation of the laser rangefinder in the secondary ranging port 14. In this embodiment, the secondary identification unit 41 includes multiple, corresponding to each group of secondary identification ports 13; the ranging module 5 includes multiple main ranging units 51 and multiple secondary ranging units 52. The main ranging units 51 respectively control the operation of the laser rangefinder in each group of main ranging ports 12, and the secondary ranging units 52 respectively correspond to the operation of the laser rangefinder in each group of secondary ranging ports 14.

[0035] Reference Figure 3 The prompt module 6 is used to prompt the control personnel and improve the information receiving ability of the control personnel. When the internal ranging of the main and auxiliary ranging ports 14 is completed, or the measured data is invalid, the staff is notified immediately.

[0036] Reference Figure 3 The central processing module 2 includes a central processing unit (CPU), an execution storage unit 21, and a judgment unit 22. The execution storage unit 21 is preset with a calculation execution file and an instruction execution file written by the control personnel. When the ranging module 5 and the identification module 4 send the detection results to the central processing module 2, the central processing unit runs the calculation execution file, brings the collected data into the data input side of the calculation instruction file, outputs the calculated data on the data output side, and runs the instruction execution file according to the output data to generate corresponding instructions to control the horizontal rotation of the auxiliary ranging port 14. For example, in this embodiment, the offset angle of the target surface is calculated by the central processing module 2. The judgment unit 22 is connected to the distance measuring module 5 and the instruction storage unit, and is used to judge the validity of the data of the distance measuring module 5. The judgment unit 22 retrieves the corresponding judgment execution file, and the judgment execution file contains the maximum difference written by the relevant personnel. After the distance measuring module 5 collects the measurement data, after the data calculation is completed in the central processing unit, the judgment execution file is run to compare the maximum difference. If the result does not exceed, the data is valid. If the result exceeds, it is determined that the data is invalid and sends the comparison result to the central processing module 2. The central processing module 2 runs the instruction execution file and generates corresponding instructions according to the operation result. For example, when measuring the horizontal tilt angle of the target surface, the distance measurement values ​​of the two distance measuring ports 14 are different, and the two distance measurement values ​​exceed the maximum difference, which means that one side of the data is invalid. Therefore, the central processing module 2 should send a corresponding adjustment instruction to the adjustment component to change the angle between the two distance measuring ports 14, and change the angle to re-measure.

[0037] The implementation principle of the control system of the laser marking device with line length marking function in the embodiment of the present application is: 1. Distance measurement function. Under the control of the control system, when only the laser marking device is needed for fixed-point and straight-line distance measurement, only the transmitting end of the laser rangefinder and the laser marking instrument inside the main distance measurement port 12 and the main identification port 11 is turned on through the display interaction module 3. The distance is marked while the collimation function is realized. The display interaction module 3 uses programmable display devices such as DLP and galvanometer to synchronously mark the length of the line segment on the laser line marked at the far end through the display device, which greatly improves the convenience of operation. Since the DLP or galvanometer used in this embodiment are both existing technologies, they are not described in detail in this implementation principle.

[0038] Second, the surface measurement function is an additional function of the laser marking device in this embodiment. On the basis of the distance measurement function, two groups of auxiliary distance measurement ports 14 are symmetrically arranged along the main distance measurement port 12, and two auxiliary identification ports 13 are symmetrically arranged along the main identification port 11. The two identification ports or two distance measurement ports operate simultaneously to form an area between the target surface. On the basis that the measured difference between the two auxiliary distance measurement ports 14 is less than the maximum difference, the offset angle of the current target surface is calculated according to the angle between the two auxiliary distance measurement ports 14 and the measured difference between the two auxiliary distance measurement ports 14.

[0039] Additionally, this embodiment also has an operation method, through two The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A laser marking device with line length marking function, characterized in that: include: The main marking port (11) is provided with a transmitting end of a laser marking instrument inside, which emits a marking laser line; Main distance measuring ports (12) are arranged on multiple sides of the main identification port (11), each of the main distance measuring ports (12) is provided with a transmitting end of a laser distance measuring device, and the main distance measuring ports (12) are parallel to the main identification port (11) and emit distance measuring laser lines; Auxiliary marking ports (13) are arranged on both sides of the main marking port (11) and are arranged in a horizontal plane with the main marking port (11). An angle is formed between the two auxiliary marking ports (13) and the main marking port (11). The auxiliary marking ports (13) are symmetrically distributed along the main marking port (11). An emitting end of a laser marking instrument is arranged inside the auxiliary marking ports (13) to emit a marking laser line. A plurality of auxiliary ranging ports (14) are provided corresponding to the two auxiliary identification ports (13), the plurality of auxiliary ranging ports (14) of the two auxiliary identification ports (13) are provided correspondingly and arranged in a horizontal plane, and a transmitting end of a laser rangefinder is provided inside the auxiliary ranging port (14) to emit a ranging laser line; A control component is connected to the main identification port (11), the main distance measurement port (12), the auxiliary identification port (13), and the auxiliary distance measurement port (14) for data processing.

2. A laser marking device with line length marking function according to claim 1, characterized in that: The auxiliary distance measuring ports (14) are provided in no less than two groups.

3. The laser marking device with line length marking function according to claim 1, characterized in that: One of the auxiliary identification ports (13) and its corresponding plurality of auxiliary distance measuring ports (14) form a group; Also includes: The adjustment component is used to adjust the inclination angles of the two groups of auxiliary identification ports (13) and the auxiliary distance measuring ports (14).

4. A control system applied to a laser marking device with line length marking function as claimed in claim 3, characterized in that: It comprises a central processing module (2), an identification module (4), a distance measurement module (5), and a display interaction module (3); The central processing module (2) is used for data processing, calculation and instruction transmission and reception, and controls the operation status of the identification module (4), the distance measurement module (5), the display interaction module (3) and the adjustment component; The identification module (4) controls the transmitting end of the laser marking instrument in the main identification port (11) and the auxiliary identification port (13), receives the instruction of the central processing module (2), and changes the operation state of the laser marking instrument; The distance measuring module (5) controls the transmitting end of the laser marking instrument in the main distance measuring port (12) and the auxiliary distance measuring port (14), receives the instruction of the central processing module (2), and changes the operation state of the laser distance measuring instrument; The display interaction module (3) is connected to the central processing module (2), displays the data processing results of the central processing module (2), and provides a human-computer interaction function. The control personnel can retrieve the command records and data records of the central processing module (2) in real time, input commands, and control the operation of the display module and the distance measurement module (5) through the central processing module (2).

5. The control system of a laser marking device with line length marking function according to claim 4, characterized in that: The central processing module (2) comprises a judgment unit (22): The judgment unit (22) is connected to the distance measuring module (5), receives measurement information of a plurality of laser distance measuring devices in the primary distance measuring port (12) and the secondary distance measuring port (14) in real time, judges the validity of the distance measuring information, and instantly uploads the judgment result to the central processing module (2).

6. The control system of the laser marking device with line length marking function according to claim 5, characterized in that: Also includes a prompt module (6); The prompt module (6) is connected to the judgment unit (22) and the display interaction module (3); while the display interaction module (3) displays the judgment result, the prompt module (6) prompts relevant personnel according to the judgment result of the judgment unit (22).

7. The control system of a laser marking device with line length marking function according to claim 4, characterized in that: The central processing module (2) further comprises: An execution storage unit (21) is pre-stored with an executable file compiled by a control person, and after the central processing module (2) completes data calculation, the executable file generates corresponding instructions according to the data calculation result to control the distance measurement module (5) and the identification module (4).

8. The laser marking device and control system with line length marking function according to claim 1, characterized in that: The identification module (4) comprises: A main identification unit (41) correspondingly controls a laser marking instrument in the main identification port (11) to change the operating state of the laser marking instrument; A secondary identification unit (41) correspondingly controls the laser marking instrument in the secondary identification port (13) to change the operating state of the laser marking instrument; The distance measuring module (5) comprises: A main distance measuring unit (51) correspondingly controls the laser distance measuring device in the main distance measuring port (12) to change the operation state of the laser distance measuring device; The auxiliary distance measuring unit (52) controls the laser distance measuring devices in each two corresponding auxiliary distance measuring ports (14) and changes the operation state of each group of laser distance measuring devices at the same time.

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