Laser profilometer

Abstract

The utility model discloses a kind of laser section measurement equipment, including information processing module for controlling each module collaborative work, laser ranging module for the distance of non-contact measurement section target point, for driving stepper motor rotation, the stepper motor drive module of driving the laser ranging module rotates according to set step angle, for detecting the angle offset of stepper motor Angle sensor module, for storing laser ranging data Storage module, for sending laser ranging data to receiving end server or external device Communication module, the stepper motor drive module, angle sensor module, storage module and communication module are all connected with information processing module. Solve the problems that existing section measurement equipment operation is complex, is greatly limited by topography and line-of-sight condition, and the measuring efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of engineering surveying, and in particular to a laser cross-section measuring device. Background Technology

[0002] In the construction and maintenance of projects such as tunnels, roads, and mines, cross-section measurement is a crucial step in ensuring project quality and safety. Currently, commonly used cross-section measurement methods include total stations, levels, and traditional laser distance measuring equipment. These devices have the following problems: high cost, complex operation, and cumbersome data processing; significant limitations due to terrain and line-of-sight conditions, resulting in low measurement efficiency; poor reliability in environments with low light or narrow spaces; limited measurement points, making it difficult to comprehensively reflect the cross-sectional morphology; large and heavy equipment, making it inconvenient to carry and use; and long measurement times, increasing safety risks for construction personnel and potentially interfering with other work processes.

[0003] Therefore, there is an urgent need for a new type of measuring equipment that can achieve rapid, accurate, and comprehensive cross-sectional measurement, while being low in cost, easy to operate, and highly safe. Utility Model Content

[0004] The purpose of this invention is to provide a laser cross-section measuring device to solve the problems of existing cross-section measuring devices being complex to operate, greatly limited by terrain and line of sight conditions, and having low measurement efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A laser cross-section measurement device includes an information processing module for controlling the coordinated operation of various modules, a laser ranging module for non-contact measurement of the distance to a target point on the cross-section, a stepper motor drive module for driving a stepper motor to rotate and causing the laser ranging module to rotate at a set step angle, an angle sensor module for detecting and correcting the angular offset of the stepper motor, a storage module for storing laser ranging data, and a communication module for sending the laser ranging data to a receiving server or external device. The stepper motor drive module, angle sensor module, storage module, and communication module are all connected to the information processing module.

[0007] The information processing module, serving as the control core, employs an embedded processor and connects to the storage module, communication module, stepper motor drive module, angle sensor module, and laser ranging module, coordinating their operation. The information processing module controls the stepper motor drive module to rotate according to a set number of steps, driving the laser ranging module to measure the cross-sectional distance point by point. The laser ranging module measures the distance to the target point on the cross-section using the phase method. The angle sensor module detects the angular deviation of the stepper motor in real time and corrects it through the information processing module, ensuring consistent measurement starting positions. The storage module backs up the laser ranging data. The communication module includes a 4G communication module, an Ethernet communication module, and an RS485 communication module, allowing for the selection of one or more methods to send data to a server or external devices according to actual needs. This solution enables rapid, accurate, and comprehensive cross-sectional measurement, offering advantages such as low cost, ease of operation, high measurement efficiency, and good security. It is suitable for the construction and maintenance of tunnels, roads, mines, and other engineering projects.

[0008] The measurement workflow using this solution is as follows: The equipment is powered on and initialized; the information processing module reads the angle sensor data and corrects the stepper motor position; the information processing module controls the stepper motor to rotate at the set step angle; the laser ranging module measures the distance point by point; the measurement data is stored in real time or sent to the server via the communication module; the data can be analyzed and processed on the server to generate a cross-sectional profile map for engineering evaluation.

[0009] As a further preferred embodiment of this utility model, the stepper motor drive module adopts the DRV8825 stepper motor drive chip, which supports full-step to 1 / 32-step micro-stepping modes.

[0010] The laser ranging module is driven to rotate by a stepper motor, enabling rapid, omnidirectional cross-sectional scanning with high measurement accuracy.

[0011] As a further preferred embodiment of this utility model, the angle sensor module adopts a high-precision angle sensor SCL3300-D01.

[0012] The angle sensor module automatically corrects for motor misalignment, ensuring measurement repeatability.

[0013] As a further preferred embodiment of this utility model, the laser ranging module adopts a phase-based laser ranging device with a maximum range of 60 meters and an accuracy of ±2 millimeters.

[0014] As a further preferred embodiment of this invention, the storage module adopts an embedded storage chip CSNP1GCR01-BOW based on NAND flash memory, which supports bad block management and embedded ECC verification.

[0015] As a further preferred embodiment of this utility model, the communication module is one or a combination of several of the following: a 4G communication module, an Ethernet communication module, and an RS485 communication module.

[0016] Multiple communication methods are available to adapt to different field environments.

[0017] As a further preferred embodiment of this utility model, when the communication module includes a 4G communication module, the 4G communication module includes a P-MOS transistor to control the power output, supporting 12V power supply to the 4G module Q560G-A-TTL; when the communication module includes an Ethernet communication module, the Ethernet communication module adopts a serial-to-Ethernet module USR-K6, which integrates a TCP / IP protocol stack; when the communication module includes an RS485 communication module, the RS485 communication module adopts a half-duplex transceiver SP485EEN-L / TR, supporting a maximum transmission rate of 10Mbps.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] 1. It can achieve fast, accurate and comprehensive cross-section measurement, and has the advantages of low cost, simple operation, high measurement efficiency and good safety. It is suitable for the construction and maintenance of tunnels, roads, mines and other projects.

[0020] 2. The laser ranging module is driven to rotate by a stepper motor, enabling rapid and omnidirectional cross-sectional scanning with high measurement accuracy.

[0021] 3. The angle sensor module automatically corrects motor offset to ensure measurement repeatability.

[0022] 4. Multiple communication methods are available to adapt to different field environments.

[0023] 5. Reduce manual intervention, lower construction risks, and ensure personnel safety. Attached Figure Description

[0024] Figure 1 This is a block diagram of the device of this utility model.

[0025] Figure 2 This is a circuit diagram of the information processing module of this utility model.

[0026] Figure 3 This is a circuit diagram of the storage module of this utility model.

[0027] Figure 4 This is the circuit diagram of the 4G communication module of this utility model.

[0028] Figure 5 This utility model Figure 4 This is the present utility model.

[0029] Figure 6 This is the circuit diagram of the RS485 communication module of this utility model.

[0030] Figure 7 This is the circuit diagram of the stepper motor drive module of this utility model.

[0031] Figure 8 This is the circuit diagram of the angle sensor module of this utility model.

[0032] Figure 9 This is the circuit diagram of the laser ranging module of this utility model. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 utility model based on the specific circumstances. Specific Implementation Example 1:

[0040] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 A laser cross-section measurement device is shown, comprising an information processing module for controlling the coordinated operation of various modules, a laser ranging module for non-contact measurement of the distance to a target point on the cross-section, a stepper motor drive module for driving a stepper motor to rotate and causing the laser ranging module to rotate at a set step angle, an angle sensor module for detecting and correcting the angular offset of the stepper motor, a storage module for storing laser ranging data, and a communication module for sending the laser ranging data to a receiving server or external device. The stepper motor drive module, angle sensor module, storage module, and communication module are all connected to the information processing module.

[0041] The information processing module, serving as the control core, employs an embedded processor and connects to the storage module, communication module, stepper motor drive module, angle sensor module, and laser ranging module, coordinating their operation. The information processing module controls the stepper motor drive module to rotate according to a set number of steps, driving the laser ranging module to measure the cross-sectional distance point by point. The laser ranging module measures the distance to the target point on the cross-section using the phase method. The angle sensor module detects the angular deviation of the stepper motor in real time and corrects it through the information processing module, ensuring consistent measurement starting positions. The storage module backs up the laser ranging data. The communication module includes a 4G communication module, an Ethernet communication module, and an RS485 communication module, allowing for the selection of one or more methods to send data to a server or external devices according to actual needs. This solution enables rapid, accurate, and comprehensive cross-sectional measurement, offering advantages such as low cost, ease of operation, high measurement efficiency, and good security. It is suitable for the construction and maintenance of tunnels, roads, mines, and other engineering projects.

[0042] The measurement workflow using this solution is as follows: The equipment is powered on and initialized; the information processing module reads the angle sensor data and corrects the stepper motor position; the information processing module controls the stepper motor to rotate at the set step angle; the laser ranging module measures the distance point by point; the measurement data is stored in real time or sent to the server via the communication module; the data can be analyzed and processed on the server to generate a cross-sectional profile map for engineering evaluation. Specific Implementation Example 2:

[0044] This embodiment further describes the stepper motor drive module based on specific embodiment 1. The stepper motor drive module uses the DRV8825 stepper motor drive chip and supports full-step to 1 / 32-step micro-stepping modes.

[0045] The laser ranging module is driven to rotate by a stepper motor, enabling rapid, omnidirectional cross-sectional scanning with high measurement accuracy. Specific Implementation Example 3:

[0047] This embodiment further describes the angle sensor module based on specific embodiment 1. The angle sensor module adopts a high-precision angle sensor SCL3300-D01.

[0048] The angle sensor module automatically corrects for motor misalignment, ensuring measurement repeatability. Specific Implementation Example 4:

[0050] This embodiment further describes the laser ranging module based on specific embodiment 1. The laser ranging module adopts a phase-based laser ranging device with a maximum range of 60 meters and an accuracy of ±2 millimeters. Specific Implementation Example 5:

[0052] This embodiment further describes the storage module based on specific embodiment 1. The storage module adopts an embedded storage chip CSNP1GCR01-BOW based on NAND flash memory, which supports bad block management and embedded ECC verification. Specific Implementation Example 6:

[0054] This embodiment further describes the communication module based on specific embodiment 1. The communication module is one or a combination of several of the following: 4G communication module, Ethernet communication module and RS485 communication module.

[0055] Multiple communication methods are available to adapt to different field environments. Specific Implementation Example 7:

[0057] This embodiment further describes the communication module based on specific embodiment 7. When the communication module includes a 4G communication module, the 4G communication module includes a P-MOS transistor to control the power output, supporting 12V power supply to the 4G module Q560G-A-TTL; when the communication module includes an Ethernet communication module, the Ethernet communication module adopts a serial-to-Ethernet module USR-K6, which integrates a TCP / IP protocol stack; when the communication module includes an RS485 communication module, the RS485 communication module adopts a half-duplex transceiver SP485EEN-L / TR, supporting a maximum transmission rate of 10Mbps.

[0058] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser cross-section measuring device, characterized in that, The system includes an information processing module for controlling the coordinated operation of various modules, a laser ranging module for non-contact measurement of the distance to target points on a cross-section, a stepper motor drive module for driving a stepper motor to rotate and causing the laser ranging module to rotate at a set step angle, an angle sensor module for detecting and correcting the angular offset of the stepper motor, a storage module for storing laser ranging data, and a communication module for sending the laser ranging data to a receiving server or external device. The stepper motor drive module, angle sensor module, storage module, and communication module are all connected to the information processing module.

2. The laser cross-section measuring device according to claim 1, characterized in that: The stepper motor drive module uses the DRV8825 stepper motor drive chip, which supports full-step to 1 / 32-step micro-stepping modes.

3. The laser cross-section measuring device according to claim 1, characterized in that: The angle sensor module uses a high-precision angle sensor SCL3300-D01.

4. The laser cross-section measuring device according to claim 1, characterized in that: The laser ranging module uses a phase-based laser ranging device with a maximum range of 60 meters and an accuracy of ±2 millimeters.

5. The laser cross-section measuring device according to claim 1, characterized in that: The storage module uses the NAND flash memory-based embedded storage chip CSNP1GCR01-BOW, which supports bad block management and embedded ECC verification.

6. The laser cross-section measuring device according to claim 1, characterized in that: The communication module is one or a combination of several of the following: 4G communication module, Ethernet communication module, and RS485 communication module.

7. The laser cross-section measuring device according to claim 6, characterized in that: When the communication module includes a 4G communication module, the 4G communication module includes a P-MOS transistor to control the power output, supporting 12V power supply to the 4G module Q560G-A-TTL; when the communication module includes an Ethernet communication module, the Ethernet communication module adopts a serial-to-Ethernet module USR-K6, which integrates a TCP / IP protocol stack; when the communication module includes an RS485 communication module, the RS485 communication module adopts a half-duplex transceiver SP485EEN-L / TR, supporting a maximum transmission rate of 10Mbps.

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