House surveying and mapping system and surveying and mapping method for construction engineering

Abstract

The present invention discloses a house surveying and mapping system for construction engineering, including a combined base, a level tube is inlaid and fixedly installed on the combined base, and a support foot is bonded and fixedly installed on the bottom surface of the combined base, a battery module is inlaid and fixedly installed at the center of the top surface of the combined base, and a DC motor is fixedly installed on the top surface of the battery module, the output end of the DC motor passes through the top center of the protective cover, and the protective cover is sleeved and installed on the outside of the battery module and the DC motor. The house surveying and mapping system for construction engineering and its surveying and mapping method mainly measure coordinate points through 6 infrared sensors. According to the intermittent rotation of the infrared sensors, the plane coordinate points of the rooms in the house can be measured at 360 degrees. The overall measurement work is automated and does not require manual operation. At the same time, the cost is low and the structure is simple, so it is convenient to place a surveying and mapping point in each room for measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a house surveying and mapping system for construction engineering and a surveying and mapping method thereof. Background Art

[0002] House construction refers to the engineering project used for house building. House construction projects can be divided into multiple stages, including planning and design, construction preparation, main structure construction, decoration and renovation, equipment installation and delivery for use. Among them, during the decoration and renovation of house construction projects, because the whole house is rough-finished, the overall interior plan and size data of the house are needed for decoration design, and surveying and mapping work is required.

[0003] Comparative document: A house surveying system and method for construction engineering, publication number: CN116858200B. By measuring the distance and angle from a fixed point to a corner line, the entire space area is divided into multiple triangles. The area of ​​the triangle is quickly calculated using the cosine theorem, and the total area is added up. For irregular quadrilateral houses, rapid and accurate surveying of the interior area of ​​the house can be achieved.

[0004] At present, house surveying systems and methods thereof use data acquisition equipment and measurement software to perform surveying work. However, the data acquisition equipment includes various sensors, and the overall cost is too high. As a result, when it is necessary to survey a house with multiple rooms, it is impossible to carry multiple data acquisition equipment. After the surveying is completed, the equipment needs to be manually moved to a suitable room for internal surveying and processing. Therefore, we also propose a house surveying system and method thereof for construction projects. Summary of the invention

[0005] The purpose of the present invention is to provide a house surveying system and a surveying method for construction projects, so as to improve the problem that when it is necessary to survey a multi-room house, it is impossible to carry multiple data acquisition devices and they need to be manually moved to a suitable room for internal surveying and processing after the surveying is completed.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a house surveying and mapping system for construction engineering, comprising a combined base, a level tube is inlaid and fixedly installed on the combined base, and a supporting foot is bonded and fixedly installed on the bottom surface of the combined base, a battery module is inlaid and fixedly installed on the center of the top surface of the combined base, and a DC motor is fixedly installed on the top surface of the battery module, the output end of the DC motor passes through the top center of the protective sleeve, and the protective sleeve is sleeved and installed on the outside of the battery module and the DC motor, and the bottom of the protective sleeve is sleeved and connected with the top end of the combined base, a turntable is fixedly installed on the top center of the output end of the DC motor, and a tooth block is arranged on the outer side of the curved surface of the turntable, a circuit board and a combined ring body are installed on the top surface of the protective sleeve, and the combined ring body is located on the outer side of the circuit board, an adjustment sleeve is sleeved and installed on the outer side of the combined ring body, and an adjustment tooth ring is arranged on the inner wall of the adjustment sleeve, and an infrared sensor is inlaid and fixedly installed on the frame of the adjustment sleeve.

[0007] Furthermore, the combined base is provided with level tubes and supporting feet at equal angles, and the combined base and the protective sleeve are connected by threaded fixing.

[0008] Furthermore, the protective sleeve is connected to the output end of the DC motor by rotational connection, and the protective sleeve is connected to the circuit board by embedding and fixing, and the protective sleeve and the combined ring body are arranged as an integrated structure.

[0009] Furthermore, a connecting shaft is fixedly installed on the top surface of the protective sleeve, and the connecting shaft is located inside the combined ring body. A connecting gear is installed at the top center of the connecting shaft, and the connecting gear is interconnected with the adjusting gear ring and the gear block on the turntable.

[0010] Furthermore, the tooth block and the turntable are arranged as an integrated structure, and the turntable is connected to the connecting gear through the tooth block by a meshing connection, and the connecting gear is connected to the adjusting gear ring by a meshing connection, the adjusting gear ring and the adjusting sleeve are arranged as an integrated structure, and the adjusting gear rings are distributed at equal angles on the adjusting sleeve, and there are 360 ​​adjusting gear rings, and the connecting gear is connected to the connecting shaft by a rotating shaft connection.

[0011] Furthermore, the circuit board includes a Bluetooth module, a GPS module, a microcontroller, a power management module, a storage module, an antenna module and a display and user interface. The Bluetooth module is responsible for transmitting and receiving data with other Bluetooth devices, the GPS module is responsible for the location data of the surveying points, the microcontroller is used to process the data received from the Bluetooth module and the GPS module, the power management system is used to use a battery for power supply, the storage module is used to store the received data, the antenna module is used for the Bluetooth module and the GPS module to receive and transmit signals, and the display and user interface operates and displays the working status of the device through buttons and LED indicators.

[0012] Furthermore, the adjustment sleeve is connected to the combined ring body by rotational connection, and an annular groove is provided on the inner wall of the bottom end of the adjustment sleeve, and convex spheres are fixedly installed at equal angles on the curved surface of the combined ring body.

[0013] Furthermore, the infrared sensor includes an infrared transmitter, an infrared receiver and a signal processing circuit. The infrared transmitter transmits a beam of infrared light, the infrared receiver detects the infrared light reflected back by the target object, and the signal processing circuit converts the received infrared signal into a voltage or a digital signal.

[0014] Another technical solution provided by the present invention is a surveying method of a house surveying system for a construction project, comprising the following steps:

[0015] S1. Place the house surveying and mapping system in the indoor house surveying and mapping area through the level tube on the combined base, and place it horizontally through the support feet on the combined base;

[0016] S2. According to the needs of surveying and mapping, multiple house surveying and mapping systems can be placed at the same time for surveying and mapping work, and the coordinates of the surveying and mapping points can be located according to the GPS module on the circuit board;

[0017] S3, starting the house mapping system, and the DC motor rotates with the power supplied by the battery module;

[0018] S4, the DC motor drives the connecting gear and the adjusting gear ring to rotate intermittently through the turntable and the gear block, and the adjusting gear ring drives the infrared sensor to rotate through the adjusting sleeve;

[0019] S5, there are 360 ​​adjustment gear rings and 6 infrared sensors, which can drive the infrared sensors to perform 1° intermittent rotation;

[0020] S6. The infrared sensor can measure the coordinate point position of the house. The infrared sensor rotates 60° and measures the coordinate point position 360 times. Then, the DC motor drives the infrared sensor to flip back and measure the coordinate point position 360 times again.

[0021] S7, the infrared sensor transmits the coordinate point information of the house measurement to the tablet computer for processing through the circuit board;

[0022] S8, according to the data processing system inside the tablet computer, based on the two coordinate groups transmitted by the infrared sensor (15), the first coordinate group and the second coordinate set ,in The coordinate point data of the first coordinate group are respectively: , the coordinate point data of the second coordinate group are respectively: .

[0023] The coordinate points of the first coordinate group and the second coordinate group are stored in a first CSV file and a second CSV file respectively;

[0024] S9, setting a coordinate point difference threshold and a coordinate difference quantity threshold, comparing the coordinate point data of the first coordinate group and the corresponding second coordinate group, and generating a third coordinate group, specifically as follows:

[0025] Calculate the coordinates first and The Euclidean distance of

[0026] If the Euclidean distance is greater than the difference threshold, the coordinate point and Marked as abnormal coordinate points,

[0027] If the Euclidean distance is not greater than the difference threshold, the coordinate point is used and Generate the coordinate points of the third coordinate group , the formula is as follows: ;

[0028] If the number of abnormal coordinate points is greater than the coordinate difference number threshold, return to step S6 to re-measure the house. If the number of abnormal coordinate points is not greater than the coordinate difference number threshold, all abnormal coordinate points are removed and the abnormal coordinate points are not used to generate the coordinate points of the third coordinate group.

[0029] Connect the coordinate points of the third coordinate group in ascending order of coordinates to generate edges, connect the maximum order coordinate point and the minimum order coordinate point to generate edges, and all generated edge sets are plane graphs;

[0030] S10, if the house includes multiple surveying and mapping areas, use the house surveying and mapping system to measure the multiple surveying and mapping areas respectively, generate multiple floor plans, and perform layer overlay operation on the multiple floor plans to merge overlapping edges and integrate them into a floor plan of the entire house;

[0031] Since each surveying and mapping area is in a different coordinate system, first determine the global coordinate system and the local coordinate system, and then perform layer overlay, as follows:

[0032] The coordinate system operation for the coordinate points of the local coordinate system is: ;

[0033] in, are local coordinates, are global coordinates, is the rotation angle of the local coordinate system based on the global coordinate system, and is the translation of the local coordinate system based on the global coordinate system;

[0034] The purpose of the layer overlay operation is to merge the overlapping edges of multiple planes. The operation is:

[0035] Set an edge threshold, compare the edge of the local coordinate system after the coordinate system operation with the edge of the global coordinate system in sequence, if the edge spacing is less than the edge threshold, retain the edge centerline as the merging result, the edge centerline is defined as: for edge and The edge center line is , if the edge spacing is not less than the edge threshold, retaining the edge of the local coordinate system and the edge of the global coordinate system of the coordinate system operation,

[0036] Ultimately, the set of all retained edges is the floor plan of the entire house.

[0037] Compared with the prior art, the beneficial effects of the present invention are: the house surveying and mapping system for construction engineering and the surveying and mapping method thereof;

[0038] 1. The house surveying and mapping system mainly measures coordinate points through the 6 infrared sensors. According to the intermittent rotation of the infrared sensors, the 360° plane coordinate points of the rooms in the house can be measured. The overall measurement work is automated and does not require manual operation. At the same time, it has low cost and simple structure, making it convenient to place a surveying and mapping point in each room for measurement.

[0039] 2. The intermittent rotation of the infrared sensor can be achieved by driving the turntable and the gear block through the DC motor. The gear block drives the connecting gear and the adjusting gear ring to rotate to achieve intermittent rotation. There are 360 ​​adjusting gear rings and 6 infrared sensors. The infrared sensor can be rotated 60° to measure 360 ​​coordinate points. The DC motor is then reset and a second measurement is performed to facilitate the subsequent plane map comparison.

[0040] 3. The coordinate group data measured by the infrared sensor can be transmitted to the tablet computer through the Bluetooth module on the circuit board. The data analysis system generates connecting lines for the coordinate group data, connects the lines in sequence to generate a floor plan, and according to the placement of multiple surveying points, the floor plans of multiple rooms can be integrated to map out the overall floor plan of the house. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall combined three-dimensional structure of the present invention.

[0042] Figure 2 It is a schematic diagram of the three-dimensional structure of the adjustment sleeve and the protective sleeve separated according to the present invention.

[0043] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the protective cover of the present invention.

[0044] Figure 4 It is a schematic diagram of the three-dimensional structure of the upward viewing angle adjustment sleeve of the present invention.

[0045] Figure 5 It is a schematic diagram of the overall process of the present invention.

[0046] Figure 6 It is a schematic diagram of the infrared sensor of the present invention.

[0047] Figure 7 It is a schematic diagram of the circuit board structure of the present invention.

[0048] Figure 8 This is a schematic diagram of the data analysis system of the present invention.

[0049] In the figure: 1. combined base; 2. level tube; 3. support foot; 4. battery module; 5. DC motor; 6. protective cover; 7. turntable; 8. gear block; 9. circuit board; 10. combined ring body; 11. connecting shaft; 12. connecting gear; 13. adjustment sleeve; 14. adjustment gear ring; 15. infrared sensor. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] See also Figure 1-8 The present invention provides a technical solution: a house surveying and mapping system for construction engineering, comprising a combined base 1, a level tube 2 is inlaid and fixedly installed on the combined base 1, and a supporting foot 3 is bonded and fixedly installed on the bottom surface of the combined base 1, a battery module 4 is inlaid and fixedly installed at the center of the top surface of the combined base 1, and a DC motor 5 is fixedly installed on the top surface of the battery module 4, the output end of the DC motor 5 passes through the top center of a protective sleeve 6, and the protective sleeve 6 is sleeved and installed on the outside of the battery module 4 and the DC motor 5, and the bottom of the protective sleeve 6 is sleeved and connected with the top of the combined base 1, a turntable 7 is fixedly installed at the top center of the output end of the DC motor 5, and a tooth block 8 is arranged on the outer side of the curved surface of the turntable 7, a circuit board 9 and a combined ring body 10 are installed on the top surface of the protective sleeve 6, and the combined ring body 10 is located on the outer side of the circuit board 9, an adjusting sleeve 13 is sleeved and installed on the outer side of the combined ring body 10, and an adjusting tooth ring 14 is arranged on the inner wall of the adjusting sleeve 13, and an infrared sensor 15 is inlaid and fixedly installed on the frame of the adjusting sleeve 13.

[0052] Level tubes 2 and supporting feet 3 are distributed at equal angles on the combined base 1, and the connection method between the combined base 1 and the protective cover 6 is threaded fixing, so that the protective cover 6 can be installed and fixed, and the components inside the protective cover 6 can be protected later. At the same time, the level tubes 2 and supporting feet 3 arranged on the combined base 1 are convenient for horizontal placement.

[0053] The protective sleeve 6 is connected to the output end of the DC motor 5 by rotational connection, and the protective sleeve 6 is connected to the circuit board 9 by embedding and fixing, and the protective sleeve 6 and the combined ring body 10 are an integrated structure. The protective sleeve 6 can be combined with the circuit board 9 and the combined ring body 10 for subsequent connection work.

[0054] A connecting shaft 11 is fixedly installed on the top surface of the protective sleeve 6, and the connecting shaft 11 is located inside the combined ring body 10. A connecting gear 12 is installed at the top center of the connecting shaft 11, and the connecting gear 12 is connected to the adjusting gear ring 14 and the tooth block 8 on the turntable 7. The tooth block 8 and the turntable 7 are integrated structures, and the turntable 7 is connected to the connecting gear 12 through the tooth block 8 in a meshing connection, and the connecting gear 12 is connected to the adjusting gear ring 14 in a meshing connection. The adjusting gear ring 14 and the adjusting sleeve 13 are integrated structures, and the adjusting gear rings 14 are distributed at equal angles on the adjusting sleeve 13, and 360 adjusting gear rings 14 are provided. The connection mode of the connecting gear 12 and the connecting shaft 11 is a rotating shaft connection, which can make the tooth block 8 on the turntable 7 drive the connecting gear 12 and the adjusting gear ring 14 to rotate intermittently, and the adjusting gear ring 14 can drive the infrared sensor 15 to rotate intermittently by 1° through the adjusting sleeve 13, so as to facilitate the infrared sensor 15 to automatically rotate and measure the coordinate point.

[0055] The circuit board 9 includes a Bluetooth module, a GPS module, a microcontroller, a power management module, a storage module, an antenna module, and a display and user interface. The Bluetooth module is responsible for transmitting and receiving data with other Bluetooth devices, the GPS module is responsible for the location data of the surveying point, the microcontroller is used to process the data received from the Bluetooth module and the GPS module, the power management system is used to use a battery for power supply, the storage module is used to store the received data, the antenna module is used for the Bluetooth module and the GPS module to receive and transmit signals, and the display and user interface operate and display the working status of the device through buttons and LED indicator lights. According to the combination of the circuit board 9, it is convenient to organize the data transmitted by the infrared sensor 15 and transmit it to the Bluetooth-connected tablet computer for subsequent data processing and analysis.

[0056] The adjustment sleeve 13 and the combined ring body 10 are connected in a rotating manner, and an annular groove is provided on the inner wall of the bottom end of the adjustment sleeve 13, and a convex sphere is fixedly installed at an equal angle on the curved surface of the combined ring body 10. The docking of the adjustment sleeve 13 and the combined ring body 10 is conducive to the subsequent driving of the infrared sensor 15 to perform intermittent rotation measurement.

[0057] The infrared sensor 15 includes an infrared transmitter, an infrared receiver and a signal processing circuit. The infrared transmitter transmits a beam of infrared light, the infrared receiver detects the infrared light reflected by the target object, and the signal processing circuit converts the received infrared signal into a voltage or a digital signal. The infrared sensor 15 can generate coordinate points inside the house by emitting a beam of infrared light, and the cost is low.

[0058] In order to better demonstrate the house surveying and mapping system for construction engineering and the surveying and mapping method thereof, the surveying and mapping method for the house surveying and mapping system for construction engineering in this embodiment includes the following steps:

[0059] S1, placing the house surveying and mapping system to the indoor house surveying and mapping area through the level tube 2 on the combined base 1, and placing it horizontally through the support feet 3 on the combined base 1;

[0060] S2. According to the needs of surveying and mapping, multiple house surveying and mapping systems can be placed at the same time for surveying and mapping work, and the coordinates of the surveying and mapping points are located according to the GPS module on the circuit board 9;

[0061] S3, starting the house mapping system, and the DC motor 5 rotates through the power supply of the battery module 4;

[0062] S4, the DC motor 5 drives the connecting gear 12 and the adjusting gear ring 14 to rotate intermittently through the turntable 7 and the gear block 8, and the adjusting gear ring 14 drives the infrared sensor 15 to rotate through the adjusting sleeve 13;

[0063] S5, there are 360 ​​adjustment gear rings 14, and 6 infrared sensors 15, which can drive the infrared sensors 15 to perform intermittent rotation of 1°;

[0064] S6. The infrared sensor 15 can measure the coordinate point position of the house. The infrared sensor 15 rotates 60°. After measuring the coordinate point position 360 times, the DC motor 5 drives the infrared sensor 15 to flip back and measure the coordinate point position 360 times again.

[0065] S7, the infrared sensor 15 transmits the coordinate point information of the house measurement to the tablet computer for processing through the circuit board 9;

[0066] S8, according to the data processing system inside the tablet computer, based on the two coordinate groups transmitted by the infrared sensor (15), the first coordinate group and the second coordinate set ,in The coordinate point data of the first coordinate group are respectively: , the coordinate point data of the second coordinate group are respectively: ;

[0067] The coordinate points of the first coordinate group and the second coordinate group are stored in a first CSV file and a second CSV file respectively;

[0068] S9, setting a coordinate point difference threshold and a coordinate difference quantity threshold, comparing the coordinate point data of the first coordinate group and the corresponding second coordinate group, and generating a third coordinate group, specifically as follows:

[0069] Calculate the coordinates first and The Euclidean distance of

[0070] If the Euclidean distance is greater than the difference threshold, the coordinate point and Marked as abnormal coordinate points,

[0071] If the Euclidean distance is not greater than the difference threshold, the coordinate point is used and Generate the coordinate points of the third coordinate group , the formula is as follows: ;

[0072] If the number of abnormal coordinate points is greater than the coordinate difference number threshold, return to step S6 to re-measure the house. If the number of abnormal coordinate points is not greater than the coordinate difference number threshold, all abnormal coordinate points are removed and the abnormal coordinate points are not used to generate the coordinate points of the third coordinate group.

[0073] Connect the coordinate points of the third coordinate group in ascending order of coordinates to generate edges, connect the maximum order coordinate point and the minimum order coordinate point to generate edges, and all generated edge sets are plane graphs;

[0074] S10, if the house includes multiple surveying and mapping areas, use the house surveying and mapping system to measure the multiple surveying and mapping areas respectively, generate multiple floor plans, and perform layer overlay operation on the multiple floor plans to merge overlapping edges and integrate them into a floor plan of the entire house;

[0075] Since each surveying and mapping area is in a different coordinate system, first determine the global coordinate system and the local coordinate system, and then perform layer overlay, as follows:

[0076] The coordinate system operation for the coordinate points of the local coordinate system is: ;

[0077] in, are local coordinates, are global coordinates, is the rotation angle of the local coordinate system based on the global coordinate system, and is the translation of the local coordinate system based on the global coordinate system;

[0078] The purpose of the layer overlay operation is to merge the overlapping edges of multiple planes. The operation is:

[0079] Set an edge threshold, compare the edge of the local coordinate system after the coordinate system operation with the edge of the global coordinate system in sequence, if the edge spacing is less than the edge threshold, retain the edge centerline as the merging result, the edge centerline is defined as: for edge and The edge center line is , if the edge spacing is not less than the edge threshold, retaining the edge of the local coordinate system and the edge of the global coordinate system of the coordinate system operation,

[0080] Ultimately, the set of all retained edges is the floor plan of the entire house.

[0081] The working principle of this embodiment is as follows: first, according to the structure of the house, multiple house surveying systems can be placed to measure and generate the coordinate group. The house surveying system is placed horizontally through the level tube 2 and the support foot 3. Then, the house surveying system is started, and the DC motor 5 is powered by the battery module 4 to drive the turntable 7 to rotate. The turntable 7 can intermittently turn the connecting gear 12 through the gear block 8. The connecting gear 12 intermittently rotates according to the connecting shaft 11, so that the connecting gear 12 drives the adjusting sleeve 13 to rotate intermittently through the adjusting gear ring 14. According to the adjusting gear ring 14, 360 are set, and the infrared sensor 15 on the adjusting sleeve 13 is set 6 , the adjusting sleeve 13 can be installed with a rotation of 1° and rotated intermittently 60 times. The adjusting sleeve 13 performs stable rotation according to the combined ring body 10, so that the infrared sensor 15 on the adjusting sleeve 13 generates coordinate points for the wall inside the house, and automatically generates 360 coordinate points to form a coordinate group. After the DC motor 5 drives the adjusting sleeve 13 and the infrared sensor 15 to rotate 60 times, they rotate in the opposite direction and reset. According to the above principle, the infrared sensor 15 also generates a coordinate group for measuring the wall. Then the infrared sensor 15 transmits the generated measurement coordinate group to the circuit board 9 for sorting. The adjusting gear ring 14 and the connecting gear 12 and the gear block 8 are simplified in the figure to avoid dense distribution and inability to display;

[0082] The GPS module inside the circuit board 9 can determine the surveying point of the measurement coordinate group. At the same time, the microcontroller inside the circuit board 9 processes the data received from the Bluetooth module, the GPS module and the infrared sensor 15. The storage module is used to store the received data. The display and user interface operate and display the working status of the device through buttons and LED indicators. Then, the data inside the circuit board 9 can be transmitted to the tablet computer connected to Bluetooth through the Bluetooth module and the antenna module.

[0083] The tablet computer processes the two coordinate groups transmitted by the infrared sensor (15) through the internal data analysis system, namely the first coordinate group and the second coordinate set ,in The coordinate point data of the first coordinate group are respectively: , the coordinate point data of the second coordinate group are respectively: ; The coordinate points of the first coordinate group and the second coordinate group are stored in the first CSV file and the second CSV file respectively, and the coordinate point difference threshold and the coordinate difference quantity threshold are set. The coordinate point data of the first coordinate group and the corresponding second coordinate group are compared to generate the third coordinate group. Specifically, the coordinate points are calculated first. and If the Euclidean distance is greater than the difference threshold, the coordinate point and Mark as an abnormal coordinate point. If the Euclidean distance is not greater than the difference threshold, the coordinate point is used. and Generate the coordinate points of the third coordinate group , the formula is as follows: ;

[0084] If the number of abnormal coordinate points is greater than the coordinate difference number threshold, return to step S6 to re-measure the house. If the number of abnormal coordinate points is not greater than the coordinate difference number threshold, remove all abnormal coordinate points. The abnormal coordinate points are not used to generate the coordinate points of the third coordinate group. The coordinate points of the third coordinate group are connected in order from small to large in coordinate order to generate edges. The maximum order coordinate point and the minimum order coordinate point are connected to generate edges. All generated edge sets are the plan view.

[0085] The house surveying and mapping system measures multiple surveying and mapping areas respectively, generates multiple floor plans, and performs layer overlay operations on the multiple floor plans to merge the overlapping edges and integrate them into the floor plan of the whole house. Since each surveying and mapping area is in a different coordinate system, the global coordinate system and the local coordinate system are determined first, and then the layers are overlaid, as follows:

[0086] The coordinate system operation for the coordinate point of the local coordinate system is: ;

[0087] in, are local coordinates, are global coordinates, is the rotation angle of the local coordinate system based on the global coordinate system, and is the translation of the local coordinate system based on the global coordinate system;

[0088] The purpose of the layer overlay operation is to merge the overlapping edges of multiple planes. The operation is as follows:

[0089] Set the edge threshold, compare the edge of the local coordinate system after the coordinate system operation with the edge of the global coordinate system in turn, if the edge spacing is less than the edge threshold, retain the edge centerline as the merging result, the edge centerline is defined as: for edge and The edge center line is If the edge spacing is not less than the edge threshold, the edges of the local coordinate system and the global coordinate system of the coordinate system are retained. Finally, the set of all retained edges is the overall floor plan of the house. The house surveying and mapping system has low production cost and small size. Multiple houses can be placed inside the house to carry out measurement work at the same time. Operators can store multiple house surveying and mapping systems in a box and carry them with them.

[0090] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0091] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A house surveying and mapping system for construction engineering, comprising a combined base (1), characterized in that: A level tube (2) is inlaid and fixedly mounted on the combined base (1), and a support foot (3) is bonded and fixedly mounted on the bottom surface of the combined base (1). A battery module (4) is inlaid and fixedly mounted on the center of the top surface of the combined base (1), and a DC motor (5) is fixedly mounted on the top surface of the battery module (4). The output end of the DC motor (5) passes through the top center of the protective sleeve (6), and the protective sleeve (6) is sleeved and mounted on the outside of the battery module (4) and the DC motor (5), and the bottom of the protective sleeve (6) is aligned with the top of the combined base (1). A sleeve connection is provided, wherein a rotating disk (7) is fixedly mounted at the top center of the output end of the DC motor (5), and a tooth block (8) is provided on the outer side of the curved surface of the rotating disk (7); a circuit board (9) and a combined ring body (10) are mounted on the top surface of the protective sleeve (6), and the combined ring body (10) is located on the outer side of the circuit board (9); an adjusting sleeve (13) is sleeved and mounted on the outer side of the combined ring body (10), and an adjusting tooth ring (14) is provided on the inner wall of the adjusting sleeve (13); and an infrared sensor (15) is inlaid and fixedly mounted on the frame of the adjusting sleeve (13); The surveying and mapping method of the house surveying and mapping system realizes house surveying and mapping by the following steps: S1, placing the house surveying and mapping system in an indoor house surveying and mapping area through the level tube (2) on the combined base (1), and placing it horizontally through the support feet (3) on the combined base (1); S2. According to the needs of surveying and mapping, multiple house surveying and mapping systems can be placed at the same time to carry out surveying and mapping work, and the coordinates of the surveying and mapping points are located according to the GPS module on the circuit board (9); S3, starting the house surveying and mapping system, and the DC motor (5) rotates through the power supply of the battery module (4); S4, the DC motor (5) drives the connecting gear (12) and the adjusting gear ring (14) to rotate intermittently through the rotating disk (7) and the gear block (8), and the adjusting gear ring (14) drives the infrared sensor (15) to rotate through the adjusting sleeve (13); S5, there are 360 ​​adjusting tooth rings (14), and 6 infrared sensors (15), which can drive the infrared sensors (15) to perform intermittent rotation of 1°; S6, the infrared sensor (15) can be used to measure the coordinate point position of the house. After the infrared sensor (15) rotates 60 degrees and measures the coordinate point position 360 times, the DC motor (5) drives the infrared sensor (15) to flip back and measure the coordinate point position 360 times again; S7, the infrared sensor (15) transmits the coordinate point information of the house measurement to the tablet computer for processing through the circuit board (9); S8, according to the data processing system inside the tablet computer, based on the two coordinate groups transmitted by the infrared sensor (15), the first coordinate group and the second coordinate set ,in The coordinate point data of the first coordinate group are respectively: , the coordinate point data of the second coordinate group are respectively: ; The coordinate points of the first coordinate group and the second coordinate group are stored in a first CSV file and a second CSV file respectively; S9, setting a coordinate point difference threshold and a coordinate difference quantity threshold, comparing the coordinate point data of the first coordinate group and the corresponding second coordinate group, and generating a third coordinate group, specifically as follows: Calculate the coordinates first and The Euclidean distance of If the Euclidean distance is greater than the difference threshold, the coordinate point and Marked as abnormal coordinate points, If the Euclidean distance is not greater than the difference threshold, the coordinate point is used and Generate the coordinate points of the third coordinate group , the formula is as follows: ; If the number of abnormal coordinate points is greater than the coordinate difference number threshold, return to step S6 to re-measure the house. If the number of abnormal coordinate points is not greater than the coordinate difference number threshold, all abnormal coordinate points are removed and the abnormal coordinate points are not used to generate the coordinate points of the third coordinate group. Connect the coordinate points of the third coordinate group in ascending order of coordinates to generate edges, connect the maximum order coordinate point and the minimum order coordinate point to generate edges, and all generated edge sets are plane graphs; S10, if the house includes multiple surveying and mapping areas, use the house surveying and mapping system to measure the multiple surveying and mapping areas respectively, generate multiple floor plans, and perform layer overlay operation on the multiple floor plans to merge overlapping edges and integrate them into a floor plan of the entire house; Since each surveying and mapping area is in a different coordinate system, first determine the global coordinate system and the local coordinate system, and then perform layer overlay, as follows: The coordinate system operation for the coordinate points of the local coordinate system is: ; in, are local coordinates, are global coordinates, is the rotation angle of the local coordinate system based on the global coordinate system, and is the translation of the local coordinate system based on the global coordinate system; The purpose of the layer overlay operation is to merge the overlapping edges of multiple planes. The operation is: Set an edge threshold, compare the edge of the local coordinate system after the coordinate system operation with the edge of the global coordinate system in sequence, if the edge spacing is less than the edge threshold, retain the edge centerline as the merging result, the edge centerline is defined as: for edge and The edge center line is , if the edge spacing is not less than the edge threshold, retaining the edge of the local coordinate system and the edge of the global coordinate system of the coordinate system operation, Ultimately, the set of all retained edges is the floor plan of the entire house.

2. The house surveying and mapping system for construction engineering according to claim 1, characterized in that: The combined base (1) has level tubes (2) and supporting feet (3) distributed at equal angles, and the combined base (1) and the protective sleeve (6) are connected by threaded fixing.

3. The house surveying and mapping system for construction engineering according to claim 1, characterized in that: The protective sleeve (6) is connected to the output end of the DC motor (5) by rotational connection, the protective sleeve (6) is connected to the circuit board (9) by embedding and fixing, and the protective sleeve (6) and the combined ring body (10) are arranged as an integrated structure.

4. The house surveying and mapping system for construction engineering according to claim 1, characterized in that: A connecting shaft (11) is fixedly mounted on the top surface of the protective sleeve (6), and the connecting shaft (11) is located inside the combined ring body (10). A connecting gear (12) is mounted at the top center of the connecting shaft (11), and the connecting gear (12) is interconnected with the adjusting gear ring (14) and the gear block (8) on the rotating disk (7).

5. The house surveying and mapping system for construction engineering according to claim 4, characterized in that: The tooth block (8) and the rotating disk (7) are arranged as an integrated structure, and the rotating disk (7) is connected to the connecting gear (12) through the tooth block (8) in a meshing connection, and the connecting gear (12) is connected to the adjusting tooth ring (14) in a meshing connection, the adjusting tooth ring (14) and the adjusting sleeve (13) are arranged as an integrated structure, and the adjusting tooth rings (14) are distributed at equal angles on the adjusting sleeve (13), and 360 adjusting tooth rings (14) are arranged, and the connecting gear (12) and the connecting shaft (11) are connected in a rotating shaft connection.

6. The house surveying and mapping system for construction engineering according to claim 1, characterized in that: The circuit board (9) comprises a Bluetooth module, a GPS module, a microcontroller, a power management module, a storage module, an antenna module and a display and user interface. The Bluetooth module is responsible for transmitting and receiving data with other Bluetooth devices. The GPS module is responsible for the location data of the surveying point. The microcontroller is used to process the data received from the Bluetooth module and the GPS module. The power management system is used to use a battery for power supply. The storage module is used to store the received data. The antenna module is used for the Bluetooth module and the GPS module to receive and transmit signals. The display and user interface operates and displays the working status of the device through buttons and LED indicators.

7. The house surveying and mapping system for construction engineering according to claim 1, characterized in that: The adjustment sleeve (13) and the combined ring body (10) are connected in a rotational manner, and an annular groove is provided on the inner wall of the bottom end of the adjustment sleeve (13), and a convex sphere is fixedly mounted at an equal angle on the curved surface of the combined ring body (10).

8. The house surveying and mapping system for construction engineering according to claim 1, characterized in that: The infrared sensor (15) comprises an infrared transmitter, an infrared receiver and a signal processing circuit, wherein the infrared transmitter transmits a beam of infrared light, the infrared receiver detects the infrared light reflected by the target object, and the signal processing circuit converts the received infrared signal into a voltage or a digital signal.

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