Handheld road breaking engineering survey terminal and survey object feedback correction record archiving method
By using a handheld road breaking engineering survey terminal that integrates multiple modules for precise surveying and recording, the problem of damage to underground pipelines during construction has been solved, achieving accuracy in construction and completeness in data collection, thus ensuring the safety of basic energy.
Patent Information
- Application Number
- CN202511625235.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-02-24
AI Technical Summary
During construction, the lack of data, lack of data sharing, and the lack of accurate recording tools by the construction unit led to damage to underground pipelines, resulting in irreversible losses and construction delays.
A handheld road breaking engineering survey terminal was designed, integrating a Beidou positioning module, a laser ranging module, an image recording module, an information input/output module, and a network communication module. It is used to acquire and record the spatial location parameters of pipelines in real time, and send the data to the pipeline operation and maintenance management unit system through the network communication module, forming a closed-loop survey feedback correction record.
It enables precise measurement and recording of construction locations, generating electronic route maps and cross-sectional diagrams, improving the accuracy of construction, avoiding damage to existing underground pipelines, and ensuring the smooth progress of construction and the safety and reliability of basic energy.
Smart Images
Figure CN121559536A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of underground optical cable surveying, and in particular to a handheld road breaking engineering surveying terminal and a method for archiving surveyed object feedback correction records. Background Technology
[0002] In recent years, influenced by economic development and global climate change, cities and towns have been carrying out activities such as the renovation and upgrading of gas pipelines, the construction of water conservancy flood discharge channels, the laying of power cables, and the laying and upgrading of water supply pipelines.
[0003] Meanwhile, due to the scarcity of data on existing resources such as cables, gas and water pipelines, defense optical cables, and operator optical cables left from previous underground construction, and their deep location underground, coupled with a lack of data sharing among departments, new construction activities inevitably suffer irreversible stress damage to these existing resources during actual construction. This is due to insufficient surveying, inaccurate on-site confirmation by various parties, and improper statistical methods used by the construction team. As a result, on-site construction and laying of these resources must be reorganized, and some severe damage is irreparable, causing permanent losses to companies in the power, water, communications, and natural gas sectors, and making it difficult to complete the project on time.
[0004] Firstly, there is the problem of insufficient, unshared, and outdated data. Due to the large number of units involved in underground pipelines, the data standards of each industry are different, and most of them do not update in a timely manner. When they do update, they only update their own part and do not update the adjacent pipelines. This means that even if the relevant units check the data and go to the site to confirm, they can only make a general confirmation. They know almost nothing about the distance of their own pipeline from the ground surface, the angle with the center line of the line, and the condition of the surrounding cables during the most recent construction or repair. As a result, after on-site confirmation, the construction unit knows that there are cables of a certain unit below, but does not know the specific details. During the construction process, it is still inevitable to damage the existing pipelines in the area.
[0005] Secondly, construction companies lack the methods and tools to accurately record on-site pipelines. Even without data from other disciplines, the existing pipelines can be observed from the excavated cross-section after the construction team excavates the road, regardless of whether they have damaged them. However, construction companies now generally proceed directly with construction without measuring and recording the positional relationship between the construction pipelines and existing pipelines. After construction is completed, backfilling is done, leaving only a rough as-built drawing for later maintenance personnel to refer to, creating a vicious cycle. When construction is carried out again in this area, new construction companies cannot obtain accurate data from the existing pipeline companies.
[0006] Finally, the on-site confirmation process by construction units is often disorganized and lacks specific details in the signing process. Currently, the on-site confirmation process often involves construction units contacting local pipeline maintenance and management units via phone and WeChat to conduct site surveys and confirmations in the excavation area. The location description is usually just a map indicating a specific location or near a certain shopping mall on a certain road. More responsible local pipeline maintenance and management units will check existing data beforehand and then participate in the on-site confirmation. In irresponsible units, they simply send someone and say that the site is there regardless of whether it is or not. Most of the time, no specific confirmation records are left. Construction unit personnel just write down a note, sign their names, and leave. Because the personnel who come are intermittent, construction units often miss important information from certain units, and existing pipelines are still damaged during the excavation process.
[0007] Currently, there is no effective solution to the above problems. Therefore, it is urgent to design a handheld road breaking engineering survey terminal and a method for archiving survey feedback correction records. Summary of the Invention
[0008] The purpose of this invention is to overcome the shortcomings of the existing technology. By studying the difficulties in current road breaking work and the hazards caused by inadequate on-site confirmation, this invention provides a handheld road breaking engineering survey terminal and a method for archiving survey feedback correction records. This solves specific problems in the current work scenario, optimizes the basic data management mode of underground pipeline units, and ensures the basic energy security and reliability of the general public.
[0009] The technical solution of this invention is as follows:
[0010] A first aspect of the present invention is to provide a handheld road breaking engineering survey terminal, comprising:
[0011] The BeiDou positioning module is used to obtain the terminal's geographic coordinates in real time.
[0012] The laser ranging module is used to determine the vertical distance between the construction object and underground pipelines and the ground surface, as well as the horizontal and vertical distances between the construction object and underground pipelines.
[0013] The image capture module is used to acquire images of the construction area to determine the angle between the pipeline and the road centerline, as well as the angle with the ground.
[0014] The information input / output module includes a capacitive touchscreen keyboard, voice input, a visual capacitive touchscreen, and an external audio speaker, which are used for users to interact with the terminal using commands.
[0015] The network communication module supports 4G / 5G / Bluetooth and is used for data interaction with remote pipeline operation and maintenance management units and portable printers;
[0016] The central processing and storage module is connected to the above five modules and is used to coordinate the work of each module, complete the recording, calculation, storage and external communication of survey data;
[0017] The terminal obtains the spatial location parameters of the pipeline through the laser ranging module and the image recording module. Combined with the Beidou positioning coordinates, the central processing and storage module generates pipeline path maps and cross-sectional maps, and sends the data to the systems of the local pipeline operation and maintenance management units through the network communication module.
[0018] Furthermore, the laser ranging module adopts a laser ranging module with crosshairs, and the ranging result is sent to the central processing and storage module in the form of a digital signal.
[0019] Furthermore, the image recording module overlays a road centerline reference onto the recorded image to measure the horizontal angle α between the pipeline and the centerline and the vertical angle β between the pipeline and the ground.
[0020] Furthermore, the central processing and storage module has a built-in microcontroller or smart chip for performing coordinate transformation, trigonometric function calculation, and automatic generation of path diagrams and cross-sectional diagrams.
[0021] Furthermore, the network communication module is equipped with an isolation encryption submodule, which is used to encrypt the communication link and isolate the network security before data is transmitted.
[0022] A second aspect of the present invention is to provide a method for archiving survey object feedback correction records, using the terminal, comprising the following steps:
[0023] The S1 terminal obtains BeiDou positioning coordinates at the construction site and sends a site survey request to the systems of the local pipeline operation and maintenance management units.
[0024] Each S2 system returns known pipeline information within the construction area through a fixed communication interface, and the terminal generates a site confirmation SMS and notifies the relevant units.
[0025] S3 on-site personnel used the terminal's laser ranging and image recording functions to measure and record the depth H of each pipeline from the ground surface, the angle α between the pipeline and the road centerline, and the angle β between the pipeline and the ground surface.
[0026] The S4 central processing and storage module calculates the three-dimensional coordinates of each pipeline based on the measurement data and generates the latest pipeline path map and cross-sectional map of the area.
[0027] The S5 terminal transmits the newly generated path map, cross-section map and depth data back to the system of each local pipeline operation and maintenance management unit through an isolated and encrypted communication link, updates the ledger and adds a timestamp;
[0028] After the S6 construction is completed, the terminal prints the reconnaissance confirmation form and updated map files that have been countersigned by multiple parties, and submits them to the road administration department for record-keeping, thus realizing the closed-loop correction and archiving of the survey data.
[0029] Furthermore, the route map uses the road centerline as the X-axis, and selects a straight line perpendicular to the road plane and intersecting the X-axis as the Z-axis (original survey). If the distance between the X-axis and the current Z-axis in the positive Z-direction is 'a', then Z = Select a straight line located within the road plane, perpendicular to the X and Z axes, and passing through the intersection of the X and Z axes, as the Y-axis marking (original survey). If the distance between the X-axis and the current Y-axis in the positive Y-direction is b, then Y = ), α is the angle between the construction pipeline and the XY plane, β is the angle between the construction pipeline and the XZ plane, γ is the angle between the construction pipeline and the YZ plane, the coordinates of a point on the Beidou positioning pipeline are (x, y, z), and the coordinates of the Beidou positioning origin are ( , , Then the pipeline coordinates in the XYZ coordinate system are ( , , )middle =x- , =y- , = z- Using the point-direction form of the linear equation, the spatial curve of the construction pipeline can be determined as follows: = The cross-sectional diagram generates a cross-sectional view at any mileage using a slicing algorithm, which generates a route point map in the YZ plane and a two-dimensional route projection map in the XZ plane.
[0030] Furthermore, when the new measurement data deviates from the original system data by more than ±5%, the old data is automatically replaced and all systems are triggered to update synchronously; when the deviation is within ±5%, only the offset is recorded and the original data is retained.
[0031] Furthermore, the ledger update fields shall include at least the road markings where the pipeline is located, its depth from the ground (XY plane), the angle with the road centerline (X axis), the coordinates of the intersection with other pipelines, and a list of adjacent pipelines within 5 meters, and shall be attached with the route map and cross-sectional diagram after the most recent construction.
[0032] Furthermore, the isolated encrypted communication link adopts a 4G / 5G VPN or an encrypted Bluetooth channel.
[0033] Advantages and beneficial effects of the present invention:
[0034] 1. In the on-site confirmation process, this invention sends more specific construction locations to the local pipeline operation and maintenance units to obtain pipeline cross-section diagrams or route diagrams for their respective areas. Confirmation work orders with attached simplified diagrams can be printed out for all parties to sign.
[0035] 2. During the construction process, this invention can measure and record the depth of the construction object and visible existing pipelines, the angle with the road centerline, Beidou positioning, and nearby landmarks, etc., to form an electronic route map and cross-sectional map, which are then sent to the local pipeline operation and maintenance units and road administration units for data updates.
[0036] 3. This invention generates and preserves complete route maps and cross-sectional diagrams of key locations after construction and backfilling, allowing the record of the road breaking construction process to form a closed loop. This improves the ability to organize and update underground pipelines as construction progresses, making construction more precise and underground pipeline data more complete. It also avoids delays in the construction period and the impact on people's production and life caused by damage to existing underground pipelines. Attached Figure Description
[0037] Figure 1 Information flow diagram of a handheld road breaking engineering survey terminal;
[0038] Figure 2 It is a diagram of the pipeline route;
[0039] Figure 3 It is a cross-sectional view of the pipeline;
[0040] Figure 4 This is a cross-sectional view of the pipeline. Detailed Implementation
[0041] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not limiting, and should not be used to limit the scope of protection of the present invention.
[0042] Example 1: New pipeline installation
[0043] Step 1: Construction workers use handheld road-breaking survey terminals to locate the construction site to be surveyed and confirmed, and send the location information to the ledger management system of the local pipeline operation and maintenance unit for comparison to confirm whether the company's pipelines exist in the construction area.
[0044] Step Two: After the information comparison is completed, the ledger management system of each local pipeline operation and maintenance unit will send the information back to the terminal central processing and storage module through the communication interface, forming a proposed on-site confirmation SMS: Unit XX plans to conduct a site survey at XX (location, click to display map) on XX / XX / XX / XX. Currently, according to the information comparison, there are pipelines of Unit XX, Unit XX, and Unit XX in the construction area. Please have the relevant personnel conduct on-site verification. Other units that are unsure of the accuracy of the system information should also go to the site to verify and confirm the above event.
[0045] Step 3: After receiving the SMS or system message, each local pipeline operation and maintenance management unit arrives at the construction site for pre-construction confirmation. For example, Unit XX indicated that although there was no record in the system, their technicians remembered a pipeline passing through that location. Construction personnel then used a handheld road-breaking survey terminal to input the information, creating a site visit confirmation form. The handheld survey terminal generates an editable site visit confirmation form (including existing pipeline information from the system, the original route map, and cross-sectional views of any plane). Construction personnel supplement this with the issues raised by Unit XX. After verification by all parties, the construction personnel connect the handheld survey terminal to a portable printer via Bluetooth, print out the site visit confirmation form, and have it signed by all parties before keeping it on file.
[0046] Step four: The construction unit began construction. Based on the data, after carefully breaking open the ground, they observed the heating pipes, power communication optical cables, and power cables on the confirmation form, as well as an unknown pipeline. The construction personnel used a handheld road-breaking engineering survey terminal with a laser rangefinder to measure and record the distance (H) of the pipeline from the road surface on the information page of each pipeline. Subsequently, using the handheld road-breaking engineering survey terminal's recording function in conjunction with the Beidou positioning and navigation function, under the view covering the road centerline, they measured the angles α between each pipeline and the XY plane, β between the pipeline and the XZ plane, and γ between the pipeline and the YZ plane, as well as the coordinates of the origin point. By comparing this information with the existing information in the system, they calculated and generated the latest path map for the area, which was then stored in the terminal's central processing and storage module. The unknown pipeline image was then sent to the unit that had not recorded pipeline data for the area. After verification, the pipeline was confirmed to be an operator's pipeline.
[0047] Step 5: The construction unit begins normal construction. After completion, the location of the pipelines laid in the construction area is recorded and images are drawn. Specifically, 1. The depth H of the newly laid pipeline from the road surface is measured using a terminal laser rangefinder. 2. The path map uses the road centerline as the X-axis, and selects a straight line perpendicular to the road plane and intersecting the X-axis as the Z-axis (original survey line). If the distance between the X-axis and the current Z-axis in the positive Z-direction is 'a', then Z = Select a straight line located within the road plane, perpendicular to the X and Z axes, and passing through the intersection of the X and Z axes, as the Y-axis marking (original survey). If the distance between the X-axis and the current Y-axis in the positive Y-direction is b, then Y = α is the angle between the construction pipeline and the XY plane, β is the angle between the construction pipeline and the XZ plane, and γ is the angle between the construction pipeline and the YZ plane. Using a handheld road-breaking survey terminal with its recording function, the values of α, β, and γ can be measured within a view covering the road centerline. (Calculated using the coordinate plane normal vectors, i.e., the XY plane normal vector (0, 0, 1) and the XZ plane normal vector (0, 1, 0)). The coordinates of a point on the BeiDou-positioned pipeline are (x, y, z), and the coordinates of the BeiDou positioning origin are (...). , , Then the pipeline coordinates in the XYZ coordinate system are ( , , )middle =x- , =y- , = z- Using the point-direction form of the linear equation, the spatial curve of the construction pipeline can be determined as follows: = If the included angle is difficult to measure due to site conditions, the coordinates A(t) of two points on the target route can be determined using BeiDou positioning and origin conversion. , , ) and B( , , ), calculate the direction vector ( - , , Then, through the point-to-point equation of the spatial straight line... = Alternatively, a parametric solution can be used; the cross-sectional diagram generates a cross-sectional view at any mileage using a slicing algorithm, i.e., generating a route point map in the YZ plane and a two-dimensional route projection map in the XZ plane. 4. Based on the new depth of each cable, the two newly generated maps are translated and verified according to the original data; an offset of less than ±5% is considered acceptable. 5. After generating the regional route map and cross-sectional diagram, the system can already know the coordinates of every point on all cables in the region. At this point, any cross-sectional view of the region can be generated by slicing.
[0048] Step 6: Send the new data generated by the terminal to the systems of the local pipeline operation and maintenance management units, update the existing data coordinates, and generate their own path map, cross-sectional map and truncation map centered on their own pipelines, and record the timestamp.
[0049] Step 7: After the construction is completed, the new confirmation form generated by the terminal is sent to the systems of the relevant units for remote countersigning, and the Bluetooth printer is reconnected to print out the images and countersigning records generated during this construction and submit them to the road administration department for filing.
[0050] Example 2: Modification or repair of existing pipelines
[0051] Step 1: Construction personnel use a handheld road-breaking engineering survey terminal to locate the construction site to be surveyed and confirmed, and send the location information to the company's operation and maintenance ledger pipeline system to retrieve the most recent construction and maintenance record to confirm whether the company's pipelines exist in the construction area.
[0052] Step Two: After the information comparison is completed, the ledger management system of each local pipeline operation and maintenance unit will send the information back to the terminal central processing and storage module through the communication interface, forming a proposed on-site confirmation SMS: Unit XX plans to conduct a site survey at XX (location, click to display map) on XX / XX / XX / XX. Currently, according to the information comparison, there are pipelines of Unit XX, Unit XX, and Unit XX in the construction area. Please have the relevant personnel conduct on-site verification. Other units that are unsure of the accuracy of the system information should also go to the site to verify and confirm the above event.
[0053] Step 3: After receiving the SMS or system message, each local pipeline operation and maintenance management unit arrives at the construction site to conduct a pre-construction confirmation. Construction personnel use a handheld road-breaking engineering survey terminal to input information and generate a site visit confirmation form. The handheld road-breaking engineering survey terminal generates an editable site visit confirmation form (including existing pipeline information from the system, original route maps, cross-sectional views, and section views). After construction personnel supplement and input any other issues raised, and after verification by all parties, the construction personnel connect the handheld road-breaking engineering survey terminal to a portable printer via Bluetooth, print out the site visit confirmation form, and retain it after all parties have signed it.
[0054] Step four: The construction unit begins construction. Based on the data, after carefully breaking open the ground, they observe the heating pipes, power and communication optical cables, power cables, and their own gas pipelines as confirmed on the confirmation form. The construction personnel use a handheld road breaking engineering survey terminal with a laser rangefinder to measure and record the distance (H) of the above-mentioned pipelines from the road surface on the information page of each pipeline. Then, using the camera function of the handheld road breaking engineering survey terminal, under the view covering the center line of the road, they measure the angle (α) between each pipeline and the XY plane, the angle (β) between each pipeline and the XZ plane, and the angle (γ) between each pipeline and the XZ plane. They compare and calculate this information with the previous origin coordinates and straight line coordinates to form the latest path map of the area, which is then stored in the terminal's central processing and storage module.
[0055] Step 5: The construction unit begins normal construction. After completion, the pipelines laid in the construction area are located and checked. The specific method is as follows: 1. Measure the depth H of the newly laid pipeline from the road surface using a terminal laser rangefinder; 2. Using the road centerline as the X-axis, select a straight line perpendicular to the road plane and intersecting the X-axis as the Z-axis (original survey). If the distance between the X-axis and the current Z-axis in the positive Z-direction is 'a', then Z = Select a straight line located within the road plane, perpendicular to the X and Z axes, and passing through the intersection of the X and Z axes, as the Y-axis marking (original survey). If the distance between the X-axis and the current Y-axis in the positive Y-direction is b, then Y = α is the angle between the construction pipeline and the XY plane, β is the angle between the construction pipeline and the XZ plane, and γ is the angle between the construction pipeline and the YZ plane. Using a handheld road-breaking survey terminal with its recording function, the values of α, β, and γ can be measured within a view covering the road centerline. (Calculated using the coordinate plane normal vectors, i.e., the XY plane normal vector (0, 0, 1) and the XZ plane normal vector (0, 1, 0)). The coordinates of a point on the BeiDou-positioned pipeline are (x, y, z), and the coordinates of the BeiDou positioning origin are (...). , , Then the pipeline coordinates in the XYZ coordinate system are ( , , )middle =x- , =y- , = z- Using the point-direction form of the linear equation, the spatial curve of the construction pipeline can be determined as follows: = If the included angle is difficult to measure due to site conditions, the coordinates A(t) of two points on the target route can be determined using BeiDou positioning and origin conversion. , , ) and B( , , ), calculate the direction vector ( - , , Then, through the point-to-point equation of the spatial straight line... = Alternatively, a parametric solution can be used. 4. Send new data to each ledger system for verification. If the offset is less than ±5%, it indicates that the underground environment has not changed significantly, and the original data can be maintained and the timestamp retained. If the offset is greater than ±5%, the data in each system should be updated. 5. If the data is updated, the system will now know the coordinates of every point on all cables in the area. At this point, any cross-sectional view of the area can be formed by using coordinate 2D slicing.
[0056] Step 6: If the data is updated, the new data generated by the terminal will be sent to the systems of the pipeline operation and maintenance management units in each region to update the existing data coordinates and generate their own path map, cross-sectional map and truncation map with their own pipeline as the center, and record the timestamp. If the data is not updated, the offset should be fed back to each system.
[0057] Step 7: After the construction is completed, the new confirmation form generated by the terminal is sent to the systems of the relevant units for remote countersigning, and the Bluetooth printer is reconnected to print out the images and countersigning records generated during this construction and submit them to the road administration department for filing.
[0058] The above embodiments are merely some of the many implementations of the present invention, described in detail and specifically, but should not be construed as limiting the scope of the present invention. Those skilled in the art can make various modifications without departing from the concept of the present invention, and these modifications all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.
Claims
1. A handheld road breaking engineering survey terminal, characterized in that, include: The BeiDou positioning module is used to obtain the terminal's geographic coordinates in real time. The laser ranging module is used to determine the vertical distance between the construction object and underground pipelines and the ground surface, as well as the horizontal and vertical distances between the construction object and underground pipelines. The image capture module is used to acquire images of the construction area to determine the angle between the pipeline and the road centerline, as well as the angle with the ground. The information input / output module includes a capacitive touchscreen keyboard, voice input, a visual capacitive touchscreen, and an external audio speaker, which are used for users to interact with the terminal using commands. The network communication module supports 4G / 5G / Bluetooth and is used for data interaction with remote pipeline operation and maintenance management units and portable printers; The central processing and storage module is connected to the above five modules and is used to coordinate the work of each module, complete the recording, calculation, storage and external communication of survey data; The terminal obtains the spatial location parameters of the pipeline through the laser ranging module and the image recording module. Combined with the Beidou positioning coordinates, the central processing and storage module generates pipeline path maps and cross-sectional maps, and sends the data to the systems of the local pipeline operation and maintenance management units through the network communication module.
2. The handheld road breaking engineering survey terminal according to claim 1, characterized in that: The laser ranging module uses a laser ranging module with crosshairs, and the ranging results are sent to the central processing and storage module in the form of digital signals.
3. The handheld road breaking engineering survey terminal according to claim 1, characterized in that: The image recording module overlays a road centerline reference onto the recorded image to measure the horizontal angle α between the pipeline and the centerline and the vertical angle β between the pipeline and the ground.
4. The handheld road breaking engineering survey terminal according to claim 1, characterized in that: The central processing and storage module has a built-in microcontroller or smart chip, which is used to perform coordinate transformation, trigonometric function calculation, and automatic generation of path diagrams and cross-section diagrams.
5. The handheld road breaking engineering survey terminal according to any one of claims 1 to 4, characterized in that: The network communication module is equipped with an isolation encryption submodule, which is used to encrypt the communication link and isolate the network security before data is transmitted.
6. A method for archiving survey object feedback correction records, using the terminal described in any one of claims 1 to 5, characterized in that, Includes the following steps: The S1 terminal obtains BeiDou positioning coordinates at the construction site and sends a site survey request to the systems of the local pipeline operation and maintenance management units. Each S2 system returns known pipeline information within the construction area through a fixed communication interface, and the terminal generates a site confirmation SMS and notifies the relevant units. S3 on-site personnel used the terminal's laser ranging and image recording functions to measure and record the depth H of each pipeline from the ground surface, the angle α between the pipeline and the road centerline, and the angle β between the pipeline and the ground surface. The S4 central processing and storage module calculates the three-dimensional coordinates of each pipeline based on the measurement data and generates the latest pipeline path map and cross-sectional map of the area. The S5 terminal transmits the newly generated path map, cross-section map and depth data back to the system of each local pipeline operation and maintenance management unit through an isolated and encrypted communication link, updates the ledger and adds a timestamp; After the S6 construction is completed, the terminal prints the reconnaissance confirmation form and updated map files that have been countersigned by multiple parties, and submits them to the road administration department for record-keeping, thus realizing the closed-loop correction and archiving of the survey data.
7. The method for archiving survey object feedback correction records according to claim 6, characterized in that: The route map uses the road centerline as the X-axis and selects a straight line perpendicular to the road plane and intersecting the X-axis as the Z-axis. (Original survey...) If the distance between the X-axis and the current Z-axis in the positive Z-direction is 'a', then Z = The Y-axis marking is selected as a straight line located within the road plane, perpendicular to the X and Z axes, and passing through the intersection of the X and Z axes. (Original survey...) If the distance between the X-axis and the current Y-axis in the positive Y-direction is b, then Y = α is the angle between the construction pipeline and the XY plane, β is the angle between the construction pipeline and the XZ plane, γ is the angle between the construction pipeline and the YZ plane, the coordinates of a point on the BeiDou positioning pipeline are (x, y, z), and the coordinates of the BeiDou positioning origin are (...). , , Then the pipeline coordinates in the XYZ coordinate system are ( , , )middle =x- , =y- , = z- Using the point-direction form of the linear equation, the spatial curve of the construction pipeline can be determined as follows: = The cross-sectional diagram generates a cross-sectional diagram at any mileage using a slicing algorithm, which generates a route point map in the YZ plane and a two-dimensional route projection map in the XZ plane.
8. The method for archiving survey object feedback correction records according to claim 6 or 7, characterized in that: When the deviation between the new measurement data and the original system data exceeds ±5%, the old data is automatically replaced and all systems are triggered to update synchronously; when the deviation is within ±5%, only the offset is recorded and the original data is retained.
9. The method for archiving survey object feedback correction records according to claim 6, characterized in that: The ledger update fields include at least the road markings where the pipeline is located, the XY plane depth from the ground, the angle between the pipeline and the road centerline X-axis, the coordinates of the intersection points with other pipelines, and a list of adjacent pipelines within 5 meters, along with an attachment of the route map and cross-sectional diagram after the most recent construction.
10. The method for archiving survey object feedback correction records according to claim 6, characterized in that: The isolated encrypted communication link uses a 4G / 5G VPN or an encrypted Bluetooth channel.