CN116678388A - Laser centering rod and use method - Google Patents
Laser centering rod and use method Download PDFInfo
- Publication number
- CN116678388A CN116678388A CN202310661088.0A CN202310661088A CN116678388A CN 116678388 A CN116678388 A CN 116678388A CN 202310661088 A CN202310661088 A CN 202310661088A CN 116678388 A CN116678388 A CN 116678388A
- Authority
- CN
- China
- Prior art keywords
- prism
- laser
- point
- distance
- centering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000009471 action Effects 0.000 claims abstract description 10
- 230000005484 gravity Effects 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 4
- 238000013519 translation Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
- G01C15/06—Surveyors' staffs; Movable markers
- G01C15/08—Plumbing or registering staffs or markers over ground marks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/008—Active optical surveying means combined with inclination sensor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a laser centering rod and a using method thereof, and relates to the technical field of constructional engineering. The laser centering rod comprises a centering support ring, wherein a reflecting prism is arranged on the centering support ring, a transverse shaft and a longitudinal shaft are arranged on the centering support ring, a heavy hammer is arranged at the lower end of the longitudinal shaft, the mass of the heavy hammer is larger than that of a planchet mark prism of a total station, and the heavy hammer vertically faces downwards under the gravity operation. According to the laser centering rod and the application method, the center rod of the common centering rod is replaced by utilizing the principle of linear propagation of laser beams, round level bubbles are replaced by utilizing the principle that a heavy hammer is vertically downwards under the action of gravity, so that the laser centering device without the center rod is formed, and centering difference caused by bending deformation of the center rod of the common centering rod and misalignment of the round bubbles is eliminated.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a laser centering rod and a using method thereof.
Background
The centering rod is an indispensable tool for measuring lofting, a special reflecting prism is required to be erected on the centering rod for measuring lofting of the total station with high precision, and the key component of the centering rod, namely the vibration influence of the centering rod on transportation and use, can cause the centering rod to bend, so that the measuring precision is greatly reduced, and the lifting deviation of the centering rod is larger. The common centering rod adopts circular bubbles for leveling, and the dividing value of the circular bubbles is large and low in precision;
for accurate engineering lofting measurement, centering rod compares centering base more convenient, and some surveyors adopt centering rod lofting approximate position earlier and erect the tripod again and carry out accurate normalization lofting with centering base, through the precision requirement that constantly translation base correction error is up to the standard, because translation base destroys the flattening sometimes, and this work needs to go on repeatedly, and translation and flattening again after the translation, and the speed is slow inefficiency.
In order to improve the speed of lofting work and improve the precision of lofting measurement, the traditional centering rod is improved, a laser centering rod is formed, and centering errors caused by bending of the center rod and the bottom of circular bubble precision are eliminated.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a laser centering rod and a using method thereof, which solve the problems of the prior art that a translation base is damaged and leveled at times, the measurement work needs to be repeatedly carried out, and the translation is carried out after the translation, then the translation and the leveling are carried out, and the speed is low and the efficiency is low.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a laser centering rod, includes the centering support ring, be provided with reflecting prism on the centering support ring, be provided with cross axle and vertical axis on the centering support ring, the lower extreme of vertical axis is provided with the weight, the weight is greater than the weight of total powerstation planchet plus prism, and the weight is to the vertical downward under the gravity operation, during operation, the weight can be along the horizontal axis direction clockwise or anticlockwise free rotation, simultaneously can be along the vertical axis direction clockwise or anticlockwise free rotation again;
the heavy hammer is provided with three air dampers, the three air dampers consist of an air cylinder and a piston, one end of the air cylinder is movably connected with a foot rest, the piston is connected with the heavy hammer, the bottom of the heavy hammer is provided with a prism high laser range finder, the prism high laser range finder is provided with two buttons, one switch is used for pressing the laser on and then turning the laser off, and the other button is used for pressing the range finding, so that the prism high laser range finder has the function of displaying the distance height difference;
the tripod support frame telescopic system is arranged on the middle support frame ring, and an auxiliary support is arranged on the tripod support frame telescopic system;
the tripod support frame telescopic system is provided with a micro telescopic threaded sleeve and a large-distance telescopic brake button;
the device also comprises a movable rotating shaft, the movable rotating shaft enables the two connecting parts to rotate around the shaft, and the transverse shaft is connected with the centering bracket ring, the longitudinal shaft and the transverse shaft, and the air damper is connected with the foot rest and the heavy hammer through the movable rotating shaft;
the rotating shaft is composed of a rotatable connecting shaft side surface and a rotatable connecting shaft top surface.
Preferably, a foot rest and a centering support ring connecting column are arranged between the tripod support frame telescopic system and the middle support ring, the foot rest centering support ring connecting column can slide along the middle support ring, and the foot rest and the centering support ring connecting column comprise a connecting column body, a support rotating shaft air damper connecting end and a brake screw.
Preferably, the prism high-laser range finder can be taken down relative to the device, is provided with a mini-USB interface for charging, can be connected with a computer to form a USB flash disk not less than 8G, is provided with an internal lithium battery, is also provided with an internal clock, is connected with the computer and is in time synchronization with the computer, and is provided with two text files, one text file is a ranging record, the other text file is a config file, comprises continuous ranging times, takes an average value of a plurality of times, comprises a phase difference between a ranging phase center and a prism center, and the measured distance is directly added into the phase difference to display a straight prism center height difference.
The application method of the laser centering rod comprises the following specific operations:
coordinate measurement of construction points: and when the coordinate point position needs to be measured, the rod is centered, the three legs are close to a regular triangle (equilateral triangle), the gravity center of the triangle is close to a to-be-measured point, the telescopic device is large to be at the middle position (the longest and shortest stretchable middle lengths), and the prism high-laser range finder under the heavy hammer is arranged. Because the weight is automatically vertically downwards led to point to the vertical direction, the weight is quickly stopped to swing under the action of the damper, after the laser range finder is stable, the laser range finder is connected by utilizing the mobile phone APP bluetooth, the laser is led to point in a telescopic way, and the center of a point to be measured (which leg the laser is deflected to extend to be higher until the laser points to the point to be measured) is formed. After laser is stabilized, the mobile phone uses APP to control the distance measurement, the phase difference between the phase center of the range finder and the center of the prism is used as prism height, an interphone reports the prism height data to the total station operator, and then the total station is used to measure the three-dimensional coordinates of the to-be-measured point.
Three-dimensional lofting measurement: the coordinates of the point to be lofted are input into the total station, the total station turns to the angle position (generally azimuth angle) of the point to be lofted, a prism centering rod worker moves the centering rod and the angle direction of the prism to the lofting point according to the direction of the total station, two feet of the centering rod are enabled to be vertical to the direction line of the prism to the total station, the other feet of the centering rod are enabled to be vertical to the direction line of the total station and the direction of the prism, and the distance between the centering rod and the total station is enabled to be close to the calculated distance of the lofting point by moving the centering rod back and forth. Setting up a centering rod, installing a total station prism, automatically calculating the left-right front-back offset distance of the prism center relative to the position of a lofting point by a total station operator, indicating a lens operator to move the centering rod to a more accurate position by using an interphone, then measuring the distance until the offset distance from the lofting point is smaller than 5cm, installing a laser range finder under a heavy hammer, controlling the laser to open by a mobile phone APP, measuring the distance after the heavy hammer is stabilized, accurately aligning the prism center with the angle (azimuth angle) direction of the lofting point by using the lifting of the left foot and the right foot, accurately aligning the distance between the prism center and the lofting point by using the foot extension and contraction on the straight line of the total station and the prism center, and certainly, being impossible to be exactly aligned with the distance between the prism center and the lofting point, determining an allowable error according to the precision requirement of lofting measurement, if the allowable error is 5mm, considering that the front-back offset is smaller than 5mm, then measuring the left-right offset is qualified, and calculating the prism height of the total station operator, and then carrying out the input prism, and calculating the distance between the lofting point and the lofting point, and the length to be increased, and the length to be required to be increased.
If only the plane position of the to-be-measured or lofted point can be measured, the laser distance meter only emits laser to indicate the ground position of the to-be-measured or lofted point by using the laser to indicate the position.
After the centering rod is received in the transportation process, the auxiliary supports on the legs are mutually abutted to protect the damper and the heavy hammer, and the laser range finder can be taken down in the transportation process.
If the measuring point is above the centering rod, an optional laser range finder (10) is arranged at the position of the prism, a hollow column for arranging the range finder is required to be processed above the prism, the phase center distance difference between the phase center of the laser range finder above the prism and the phase center distance of the prism is required to be detected, and the method for measuring the coordinates of the point and the lofting point is the same as that of the point below the centering rod. Only the mobile phone APP controls the range finder above the prism to switch on laser indication or ranging. The measured distance plus the phase difference between the laser range finder and the prism center is taken as the prism height, the elevation of the to-be-measured point or the lofting point is calculated by adding the measured distance of the total station to the measured distance of the laser range finder and the phase difference between the laser range finder and the prism center, and the measured point is below the centering rod by subtracting the measured distance of the laser range finder and subtracting the phase difference between the prism center and the distance measuring center of the laser range finder.
(III) beneficial effects
The invention provides a laser centering rod and a using method thereof. The beneficial effects are as follows:
according to the laser centering rod and the application method, the center rod of the common centering rod is replaced by utilizing the principle of linear propagation of laser beams, round level bubbles are replaced by utilizing the principle that a heavy hammer is vertically downwards under the action of gravity, so that the laser centering device without the center rod is formed, and centering difference caused by bending deformation of the center rod of the common centering rod and misalignment of the round bubbles is eliminated.
Drawings
FIG. 1 is a side view of a structural brace of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
fig. 3 is a collapsed view of the laser centering rod of the present invention.
In the figure: 1. a reflecting prism; 2. centering the bracket ring; 3. a horizontal axis; 4. a longitudinal axis; 5. an air damper; 6. a heavy hammer; 7. prism high laser range finder; 8. a tripod support frame telescoping system; 8-1, a tiny telescopic thread sleeve; 8-2, a large-distance telescopic brake button; 9. a rotating shaft; 9-1, a rotatable coupling shaft side; 9-2, rotatably connecting the top surface of the shaft; 11. attaching a support; 12. the foot rest is connected with the centering bracket ring connecting column; 12-1, connecting columns; 12-2, a bracket rotating shaft; 12-3, an air damper connection end; 12-4, a brake screw.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a laser centering rod, includes centering support ring 2, is provided with reflecting prism 1 on the centering support ring 2, is provided with cross axle 3 and vertical axis 4 on the centering support ring 2, and the lower extreme of vertical axis 4 is provided with weight 6, and weight 6's quality is greater than the weight of total powerstation planchet plus prism, and weight 6 is vertical down under the gravity, and during operation, weight 6 can be along the free rotation of cross axle direction clockwise or anticlockwise, simultaneously can be along the free rotation of vertical axis direction clockwise or anticlockwise again;
the weight 6 is provided with three air dampers 5, the three air dampers 5 are composed of a cylinder and a piston, one end of the cylinder is movably connected with a foot rest, the piston is connected with the weight 6, the bottom of the weight 6 is provided with a prism high laser range finder 7, the prism high laser range finder 7 can be taken down relative to the device, a mini-USB interface is charged, a computer can be connected into a USB (universal serial bus) with an internal lithium battery, the internal clock is connected with the computer and is synchronous with the computer in time, two text files are arranged, one is a ranging record, the other is config, the continuous ranging times comprise average values of a plurality of times, the average values comprise the phase difference between the ranging phase center and the prism center, the measured distance is directly added into the prism center height difference of which the phase difference is displayed in a straight state, the prism high laser range finder 7 is provided with two buttons, one switch is pressed down to turn on the laser, and the other button is pressed to measure the distance, and the function of displaying the distance height difference is achieved;
the tripod support frame telescopic system 8 is arranged on the middle support ring 2, the auxiliary support 11 is arranged on the tripod support frame telescopic system 8, a tripod and centering support ring connecting column 12 is arranged between the tripod support frame telescopic system 8 and the middle support ring 2, the tripod and centering support ring connecting column 12 can slide along the middle support ring 2, and the tripod and centering support ring connecting column 12 comprises a connecting column body 12-1, a support rotating shaft 12-2 air damper connecting end 12-3 and a brake screw 12-4;
the tripod support frame telescopic system 8 is provided with a micro telescopic threaded sleeve 8-1 and a large-distance telescopic brake button 8-2;
the device also comprises a movable rotating shaft 9, the movable rotating shaft 9 enables the two connecting parts to rotate around the shaft, and the transverse shaft 3 is connected with the centering bracket ring 2, the longitudinal shaft 4 and the transverse shaft 3 as well as the air damper, the foot rest and the heavy hammer through the movable rotating shaft 9;
the rotation shaft 9 is composed of a rotatable coupling shaft side surface 9-1 and a rotatable coupling shaft top surface 9-2.
The application method of the laser centering rod comprises the following specific operations:
coordinate measurement of construction points: and when the coordinate point position needs to be measured, the centering rod is arranged, the three legs are close to the equilateral triangle, the gravity center of the triangle is close to the point to be measured, the telescopic device is as large as the longest and shortest middle lengths which can be stretched at the middle position, and the prism high laser range finder 7 under the heavy hammer 6 is arranged. Because the weight 6 is automatically vertically downwards led to lead the laser range finder 7 to point to the vertical direction, the weight is quickly stopped to swing under the action of the damper 5, after the laser range finder is stable, the mobile phone APP bluetooth is used for connecting the laser range finder 7, the laser is led to point in a telescopic way 8, and the point center laser to be measured is deflected to which foot to stretch to be higher than the telescopic device 8 until the laser points to be measured. After laser is stabilized, the mobile phone controls the distance measurement by using the APP, the phase difference between the phase center of the range finder and the center of the prism is used as prism height, an interphone reports prism height data to a total station operator, and then the total station is used for measuring the three-dimensional coordinates of the to-be-measured point.
Three-dimensional lofting measurement: the coordinates of the point to be lofted are input into the total station, the angle position of the point to be lofted, where the total station turns to, is generally an azimuth angle, a prism centering rod worker moves the centering rod and the prism to the angle direction of the lofting point according to the direction of the total station, see fig. 2, two feet of the centering rod are enabled to be perpendicular to the direction line from the prism to the total station, the other feet are enabled to be on the straight line between the total station and the center direction of the prism, and the distance between the centering rod and the total station is enabled to be close to the calculated distance of the lofting point by moving the centering rod back and forth. Setting up a centering rod, installing a total station prism, automatically calculating the left-right front-back offset distance of the prism center relative to the position of a lofting point by a total station operator, indicating a lens operator to move the centering rod to a more accurate position by using an interphone, then measuring the distance until the offset distance from the lofting point is smaller than 5cm, installing a laser range finder under a heavy hammer, controlling the laser to open by a mobile phone APP, measuring the distance after the heavy hammer is stabilized, accurately aligning the prism center with the angular azimuth direction of the lofting point by using the lifting of the left foot and the right foot, accurately aligning the prism center with the angular azimuth direction of the lofting point by using the foot extension 8 on the straight line of the total station and the prism center, accurately aligning the distance between the prism center and the lofting point by using the foot extension 8 on the straight line of the total station and the prism center, and certainly being impossible to be exactly equal to the calculated distance and angle, determining an allowable error according to the precision requirement of lofting measurement, if the allowable error is 5mm, considering the front-back offset is within 5mm, then measuring the left-right offset is qualified, and calculating the prism height by using the laser range finder 7, and accurately reporting the prism height by the total station operator, and then calculating the distance of the position of the lofting point to be equal to the length of the lofting point by the laser.
If only the plane position of the to-be-measured or lofted point can be measured, the laser distance meter only emits laser to indicate the ground position of the to-be-measured or lofted point by using the laser to indicate the position.
After the centering rod is received in the transportation process, the auxiliary supports on the legs are mutually abutted to protect the damper 5 and the heavy hammer 6, and the laser range finder 7 can be taken down in the transportation process.
If the measuring point is above the centering rod, an optional laser range finder 10 is arranged at the position of the prism 1, a hollow column for arranging the range finder is required to be processed above the prism, the phase center distance difference between the phase center of the laser range finder above the prism and the phase center distance of the prism is required to be detected, and the method for measuring the coordinates of the point and the lofting point is the same as that of the point below the centering rod. Only the mobile phone APP controls the range finder above the prism to switch on laser indication or ranging. The measured distance plus the phase difference between the laser range finder and the prism center is taken as the prism height, the elevation of the to-be-measured point or the lofting point is calculated by adding the measured distance of the total station to the measured distance of the laser range finder and the phase difference between the laser range finder and the prism center, and the measured point is below the centering rod by subtracting the measured distance of the laser range finder and subtracting the phase difference between the prism center and the distance measuring center of the laser range finder.
In summary, the laser centering rod and the use method thereof utilize the principle of linear propagation of laser beams to replace the central rod of the common centering rod, utilize the principle of vertical downward of a heavy hammer under the action of gravity to replace round level bubbles, form the laser centering device without the central rod, and eliminate the centering difference caused by the bending deformation of the central rod of the common centering rod and the misalignment of the round bubbles.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A laser centering rod, characterized by: the device comprises a centering support ring (2), wherein a reflecting prism (1) is arranged on the centering support ring (2), a transverse shaft (3) and a longitudinal shaft (4) are arranged on the centering support ring (2), a heavy hammer (6) is arranged at the lower end of the longitudinal shaft (4), the mass of the heavy hammer (6) is larger than that of a total station standard adding prism, the heavy hammer (6) vertically faces downwards under the action of gravity, and when the device works, the heavy hammer (6) can freely rotate along the transverse shaft direction in the clockwise direction or anticlockwise direction and can also freely rotate along the longitudinal shaft direction in the clockwise direction or anticlockwise direction;
three air dampers (5) are arranged on the heavy hammer (6), each air damper (5) consists of an air cylinder and a piston, one end of each air cylinder is movably connected with a foot rest, each piston is connected with the heavy hammer (6), a prism high-laser distance meter (7) is arranged at the bottom of each heavy hammer (6), each prism high-laser distance meter (7) is provided with two buttons, one switch is used for pressing on laser and then turning off the laser, and the other button is used for pressing and measuring distance, so that the distance height difference display function is realized;
a tripod support frame telescopic system (8) is arranged on the middle support frame ring (2), and an auxiliary support (11) is arranged on the tripod support frame telescopic system (8);
a micro telescopic threaded sleeve (8-1) and a large-distance telescopic brake button (8-2) are arranged on the tripod support frame telescopic system (8);
the device also comprises a movable rotating shaft (9), wherein the movable rotating shaft (9) enables the two connecting parts to rotate around the shaft, and the transverse shaft (3) is connected with the centering bracket ring (2), the longitudinal shaft (4) and the transverse shaft (3) as well as the air damper, the foot rest and the heavy hammer through the movable rotating shaft (9);
the rotating shaft (9) is composed of a rotatable connecting shaft side surface (9-1) and a rotatable connecting shaft top surface (9-2).
2. A laser centering rod as claimed in claim 1, wherein: the tripod support frame telescopic system is characterized in that a foot frame and centering support frame ring connecting column (12) is arranged between the tripod support frame telescopic system (8) and the middle support frame ring (2), the foot frame centering support frame ring connecting column (12) can slide along the middle support frame ring (2), and the foot frame and centering support frame ring connecting column (12) comprises a connecting column body (12-1), a support rotating shaft (12-2) air damper connecting end (12-3) and a brake screw (12-4).
3. A laser centering rod as claimed in claim 1, wherein: the prism high-laser range finder (7) can be taken down relative to the device, is provided with a mini-USB interface for charging, can be connected with a computer to form a USB flash disk not less than 8G, is provided with an internal lithium battery, is also provided with an internal clock, is connected with the computer and is in time synchronization with the computer, two text files are provided, one text file is a range record, the other text file is a config file, comprises continuous range times, takes an average value of a plurality of times, comprises a phase difference between a range phase center and a prism center, and the measured distance is directly added into the phase difference to display a straight prism center height difference.
4. The application method of the laser centering rod is characterized by comprising the following steps of: a laser centering rod comprising the laser centering rod of claim 1, specifically operating as follows:
coordinate measurement of construction points: and when the coordinate point position is required to be measured, the rod is centered, the three legs are close to a regular triangle (equilateral triangle), the gravity center of the triangle is close to a to-be-measured point, the telescopic device is large to the middle position (the longest and shortest middle length which can be stretched), and the prism high laser range finder (7) under the heavy hammer (6) is arranged. Because the weight (6) is automatically and vertically downwards led to point to the vertical direction by the laser range finder (7), the weight is quickly stopped to swing under the action of the damper (5), after the laser range finder is stable, the laser range finder (7) is connected by utilizing the mobile phone APP bluetooth, the laser is led to point in a telescopic way (8), and the center of a point to be measured (which leg the laser is deflected to stretch to be higher by the telescopic device (8) until the laser points to the point to be measured) is led to. After laser is stabilized, the mobile phone controls the distance measurement by using the APP, the phase difference between the phase center of the range finder and the center of the prism is used as prism height, an interphone reports prism height data to a total station operator, and then the total station is used for measuring the three-dimensional coordinates of the to-be-measured point.
Three-dimensional lofting measurement: the coordinates of the point to be lofted are input into the total station, the total station turns to the angle position (generally azimuth angle) of the point to be lofted, a prism centering rod worker moves the centering rod and the angle direction of the prism to the lofting point according to the direction of the total station, two feet of the centering rod are enabled to be vertical to the direction line of the prism to the total station, the other feet of the centering rod are enabled to be vertical to the direction line of the total station and the direction of the prism, and the distance between the centering rod and the total station is enabled to be close to the calculated distance of the lofting point by moving the centering rod back and forth. Setting up a centering rod, installing a total station prism, automatically calculating the left-right front-back offset distance of the prism center relative to the position of a lofting point by a total station operator, indicating a lens operator to move the centering rod to a more accurate position by using an interphone, then measuring the distance until the offset distance from the lofting point is smaller than 5cm, installing a laser range finder under a heavy hammer, controlling the laser to open by a mobile phone APP, measuring the distance after the heavy hammer is stabilized, accurately aligning the prism center with the angle (azimuth angle) direction of the lofting point by using the lifting of the left foot and the right foot, accurately aligning the distance between the prism center and the lofting point by using the foot extension (8) on the straight line of the total station and the prism center, and certainly, strictly equalizing the calculated distance and the angle, determining an allowable error according to the precision requirement of lofting measurement, if the allowable error is 5mm, considering the front-back offset is smaller than 5mm, then hanging the laser range finder (7) to measure and calculate the prism height and the angle (azimuth angle) of the prism to be precisely aligned with the lofting point, and the length to be excavated, and the length to be measured by the total station operator is also indicated.
If only the plane position of the to-be-measured or lofted point can be measured, the laser distance meter only emits laser to indicate the ground position of the to-be-measured or lofted point by using the laser to indicate the position.
After the centering rod is received in the transportation process, the auxiliary supports on the legs are mutually abutted to protect the damper (5) and the heavy hammer (6), and the laser range finder (7) can be taken down in the transportation process.
If the measuring point is above the centering rod, an optional laser range finder (10) is arranged at the position of the prism (1), a hollow column for arranging the range finder is required to be processed above the prism, the phase center distance difference between the phase center of the laser range finder above and the phase center distance of the prism is required to be detected, and the method for measuring the coordinates of the point and the lofting point is the same as that of the point below the centering rod. Only the mobile phone APP controls the range finder above the prism to switch on laser indication or ranging. The measured distance plus the phase difference between the laser range finder and the prism center is taken as the prism height, the elevation of the to-be-measured point or the lofting point is calculated by adding the measured distance of the total station to the measured distance of the laser range finder and the phase difference between the laser range finder and the prism center, and the measured point is below the centering rod by subtracting the measured distance of the laser range finder and subtracting the phase difference between the prism center and the distance measuring center of the laser range finder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310661088.0A CN116678388A (en) | 2023-06-06 | 2023-06-06 | Laser centering rod and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310661088.0A CN116678388A (en) | 2023-06-06 | 2023-06-06 | Laser centering rod and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116678388A true CN116678388A (en) | 2023-09-01 |
Family
ID=87790342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310661088.0A Pending CN116678388A (en) | 2023-06-06 | 2023-06-06 | Laser centering rod and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116678388A (en) |
-
2023
- 2023-06-06 CN CN202310661088.0A patent/CN116678388A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204188188U (en) | A kind of horizontal adjustment instrument measuring ground elevation | |
| CN203643450U (en) | Measuring device for concrete slump | |
| CN110487258B (en) | Prism support device and using method thereof | |
| CN109610457B (en) | Pile foundation casing center positioning device and positioning method thereof | |
| CN110905224B (en) | Auxiliary point throwing device and method for construction measurement | |
| CN201133960Y (en) | Levelling range finder prism | |
| CN112539737A (en) | Flatness measuring device for paving floor tiles in constructional engineering and implementation method | |
| CN114353704B (en) | Roof levelness detection device | |
| CN208059808U (en) | A kind of bridge machine arch measurer | |
| CN204613405U (en) | A kind of building operation stadimeter | |
| CN211550976U (en) | Mounting tool of metering device | |
| CN200979407Y (en) | A goniometer | |
| CN107702693B (en) | Geological section measuring device and method | |
| CN113865568A (en) | Self-leveling centering rod and floor sampling point measuring and positioning method | |
| CN105588551A (en) | 360-degree rotating prism for determining perpendicularity of building and using method of 360-degree rotating prism | |
| CN105183006A (en) | Levelness-measuring and leveling device for workbench | |
| CN116678388A (en) | Laser centering rod and use method | |
| CN208350077U (en) | A kind of king-post 3 D locating device | |
| CN108020215B (en) | Total station and using method thereof | |
| CN101603874A (en) | A kind of three coordinate converting machine that is used for integrated testing of quality characteristics | |
| CN204925809U (en) | A lining and levelling device for workstation | |
| CN108532984B (en) | High-precision mounting method for supporting jig frame | |
| CN207395746U (en) | A kind of new measurement pedestal | |
| CN204535701U (en) | Circular ring communicating vessel type inclinometer | |
| CN204730835U (en) | A kind of counterweight test total powerstation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |