CN115406400A - Laser range finder - Google Patents
Laser range finder Download PDFInfo
- Publication number
- CN115406400A CN115406400A CN202210982712.2A CN202210982712A CN115406400A CN 115406400 A CN115406400 A CN 115406400A CN 202210982712 A CN202210982712 A CN 202210982712A CN 115406400 A CN115406400 A CN 115406400A
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- Prior art keywords
- laser emitter
- laser
- distance
- bearing platform
- scale
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
Abstract
The application relates to a laser range finder, wherein the range finder comprises a bearing platform, a laser emitter and an angle measurer, wherein a support shaft is arranged on the bearing platform, the laser emitter rotates around the support shaft, and the angle measurer is used for measuring the rotating angle of the laser emitter rotating around the support shaft; the rotation plane of the laser emitter is parallel to the bearing platform, and the laser emitter can move towards the direction close to or far away from the target to be measured. This application has the work degree of difficulty that reduces survey crew, improves the effect of the efficiency of measurement work.
Description
Technical Field
The application relates to the technical field of laser range finding, in particular to the technical field of a laser range finder.
Background
Along with the high-speed development in each city, more and more high buildings pull out the ground, consequently more and more high to the precision requirement of construction, and accurate range finding is the indispensable link of construction, through the accurate measurement to the distance that awaits measuring, can improve the quality of engineering building, reduce construction cost and reduce construction cycle.
While at the job site, a ruler is the most common measuring tool. However, because the environment of the construction site has uncertainty, the measuring personnel often encounter the situations of long measuring distance and complex measuring distance, the working difficulty of the measuring personnel is increased, and the efficiency of the measuring work is reduced.
Disclosure of Invention
In order to reduce the working difficulty of measuring personnel and improve the efficiency of measuring work, the application provides a laser range finder and a method.
The application provides a laser range finder adopts following technical scheme:
a laser range finder comprises a bearing platform, a laser emitter and an angle measurer, wherein a support shaft is arranged on the bearing platform, the laser emitter rotates around the support shaft, and the angle measurer is used for measuring the rotating angle of the laser emitter rotating around the support shaft; the rotation plane of the laser emitter is parallel to the bearing platform, and the laser emitter can move towards the direction close to or far away from the target to be measured.
Through adopting above-mentioned technical scheme, the fixed setting of one end of back shaft is on load-bearing platform, the other end of back shaft is connected with laser emitter, laser emitter can be to being close to or keeping away from the direction removal of the target that awaits measuring, laser emitter can also support the shaft and rotate for the rotation axis, laser emitter pivoted plane and load-bearing platform's surface parallel, the turned angle that the angular surveying ware can be used to measure laser emitter, can detect the target that awaits measuring far away the distance, and detect the detection target under the different environment, make the work of measuring distance more convenient.
Preferably, the laser emitter further comprises a housing for accommodating the laser emitter, a sliding groove is formed in the housing, a sliding block is connected to the side face of the laser emitter, and the sliding block can carry the laser emitter to slide along the sliding groove.
Through adopting above-mentioned technical scheme, laser emitter sets up in the inside of shell, has seted up the spout in the inside of shell, and laser emitter's side fixed connection is on the slider, and laser emitter can slide along the spout along with the slider.
Preferably, the distance that the laser emitter moves along the chute is a constant value.
By adopting the technical scheme, the position of the slide block after moving is fixed, and the sliding distance of the slide block is a constant value.
Preferably, the distance that the laser emitter moves along the chute is measurable.
By adopting the technical scheme, the moving distance of the laser emitter can be measured.
Preferably, the supporting shaft is perpendicular to the bearing platform, the shell is provided with a through hole, and the supporting shaft penetrates through the through hole.
Through adopting above-mentioned technical scheme, the one end vertical fixation of back shaft is seted up the through hole on the bearing platform on the shell, and the other end of back shaft rotates with the shell through wearing to locate the through hole and be connected.
Preferably, the angular surveying ware includes calibrated scale and pointer, the calibrated scale is fixed in the one end that the supporting shaft kept away from load-bearing platform, the pointer is the L shape, one end of pointer with the shell is fixed, the other end bending to on the surface of calibrated scale.
By adopting the technical scheme, the angle measurer consists of the dial and the pointer, the dial is circular, the circle center of the dial is fixedly embedded at one end, far away from the bearing platform, of the supporting shaft, the pointer is designed to be L-shaped, one end of the pointer is fixedly connected to the shell, and the fingertip at the other end with a bent end is positioned on the surface of the dial.
Preferably, the laser emitter is connected with an operation block, the operation block is controlled to control the laser emitter to slide along the sliding groove, and the operation block is provided with a sliding nail capable of sliding towards the bearing platform.
Through adopting above-mentioned technical scheme, the operation piece that laser emitter side is connected makes the user can control laser emitter through the operation piece and slide along the spout according to the work demand, still is provided with the smooth nail on the terminal surface of the one end of keeping away from laser emitter at the operation piece, and the smooth nail can be towards the direction slip that is close to or keeps away from load-bearing platform.
Preferably, the outer surface of the shell is provided with a sliding hole and a clamping groove, the operating block can slide in the sliding hole, and the sliding nail can be inserted in the clamping groove.
By adopting the technical scheme, the surface of the shell is provided with the sliding hole and the clamping groove, the operation block penetrates through the sliding hole and can slide along the opening direction of the sliding hole, and the sliding nail arranged on the operation block can be inserted in the clamping groove and can be used for fixing the position of the laser transmitter.
Preferably, the dial is provided with a clockwise scale of 0-90 ° and a counterclockwise scale of 0-90 °, the clockwise scale of 0-90 ° and the counterclockwise scale of 0-90 ° have the same scale mark of 0, and the scale mark of 0 is symmetrically arranged with the scale mark of 0 as a symmetry axis.
By adopting the technical scheme, the surface of the dial plate facing the laser emitter is provided with 0-90 degrees of clockwise scales and 0-90 degrees of anticlockwise scales, the 0-90 degrees of clockwise scales and the 0-90 degrees of anticlockwise scales are provided with the same 0 scale mark, and the 0-90 degrees of clockwise scales and the 0-90 degrees of anticlockwise scales are symmetrically arranged relative to the 0 scale mark.
Preferably, the laser range finder further comprises an input unit, a data processing unit and an output unit, wherein two ends of the data processing unit are electrically connected with the input unit and the output unit respectively, the input unit receives a rotation angle input by a user and a distance moving along the target to be measured, the data processing unit calculates the length of the object to be measured according to the rotation angle and the distance moving along the target to be measured, and the output unit is used for outputting the length of the target to be measured.
By adopting the technical scheme, the client inputs the numerical information of the required rotating angle and the distance moving along the target to be measured into the input unit, the input unit transmits the numerical information of the rotating angle and the distance moving along the target to be measured to the data processing unit, and the data processing unit calculates the length of the distance to be measured according to the transmitted data information, so that the working efficiency of measuring personnel is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the target to be detected at a longer distance can be detected, so that the working difficulty of measuring personnel is reduced;
2. the detection target under different environments can be detected, and the working efficiency of measuring personnel is improved.
Drawings
FIG. 1 is a schematic structural diagram of a laser range finder according to an embodiment of the present application;
FIG. 2 is a vertical cross-sectional view of a housing of a laser rangefinder in accordance with an embodiment of the present application;
FIG. 3 is a top view of a dial of a laser range finder according to an embodiment of the present application;
FIG. 4 is a data processing flow chart of a laser ranging method according to an embodiment of the present disclosure;
fig. 5 is an algorithm diagram of a laser ranging method according to an embodiment of the present application.
Description of the reference numerals: 100. a laser range finder; 1. a load-bearing platform; 2. a laser transmitter; 3. an angle measurer; 4. an input unit; 5. a data processing unit; 6. an output unit; 7. a target to be measured; 11. a support shaft; 21. a housing; 22. a light-transmitting hole; 23. a through hole; 24. a slider; 25. a chute; 26. an operation block; 27. a slide hole; 28. sliding nails; 29. a card slot; 31. a dial; 32. a pointer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-5 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the application discloses laser range finder 100, this laser range finder 100 is through the fixed setting on load-bearing platform 1 of one end with back shaft 11, the other end of back shaft 11 is connected with laser emitter 2, laser emitter 2 can rotate on back shaft 11, 2 pivoted planes of laser emitter are parallel with load-bearing platform 1's surface, the angle measurement ware 3 of setting can be used to measure laser emitter 2's turned angle.
Referring to fig. 1-3, a laser rangefinder 100 includes a carrying platform 1, a laser emitter 2, an angle measurer 3, an input unit 4, a data processing unit 5, and an output unit 6.
The shape of load-bearing platform 1 can set up to the cuboid also can set up to the cylindricality, and two surfaces of load-bearing platform 1 set up to the plane that is parallel to each other, at the central point fixedly connected with back shaft 11 of the upper surface of load-bearing platform 1, the shape of back shaft 11 sets up to the cylinder, back shaft 11 and load-bearing platform 1's surface vertical.
The laser emitter 2 is fixed to the carrying platform 1 through a housing 21, and specifically, the housing 21 is vertically sleeved on the supporting shaft 11. The shell 21 is the cylinder of inside hollow, also can set up it into the cuboid, two through holes 23 have been seted up to the side at shell 21, two through holes 23 set up relatively and through hole 23 set up to circular, the internal diameter of through hole 23 slightly is greater than the external diameter of back shaft 11, shell 21 rotates with back shaft 11 through hole 23 and is connected, shell 21 uses back shaft 11 to rotate as the rotation axis, in other embodiments, shell 21 uses back shaft 11 to rotate as rotation axis pivoted mode, can also realize through operating module and drive module, the user controls drive module through operating module according to the distance to be measured, shell 21 is under drive module's drive, can rotate around back shaft 11. Still be provided with slide opening 27 in the side that shell 21 is on a parallel with back shaft 11, it is used for manual realization laser emitter 2 to being close to the target 7 that awaits measuring or keeping away from the removal to set up slide opening 27, target 7 that awaits measuring can be the wall, the height that awaits measuring, the body of rod, the pipeline, support column and furniture ornament etc. still are provided with a plurality of draw-in grooves 29 around slide opening 27, draw-in groove 29 includes the cylinder of both sides and the interval between its both sides, the one end that is close to target 7 that awaits measuring and the one end of keeping away from target 7 that awaits measuring at slide opening 27 respectively set up to the semicircle, a plurality of draw-in grooves 29 closely arrange, the setting is in one side that is close to load-bearing platform 1 at slide opening 27, the width of every draw-in groove 29 can set up to the constant value, the interval between two draw-in grooves 29 is the constant value also. In other embodiments, the movement of the laser emitter 2 in the housing 21 can also be realized through the operation module and the driving module, and the user operates the driving module on the housing 21 through the operation module to drive the laser emitter 2 to move towards the direction close to or away from the target 7 to be measured according to the measurement requirement.
The laser emitter 2 is arranged in the shell 21 and positioned on one side, close to the target 7 to be detected, of the through hole 23, and the laser emitter 2 is a semiconductor laser and can emit a detection light spot visible to naked eyes; the shell 21 is provided with a light through hole 22 towards the center of the end face of the object 7 to be measured, and the light through hole 22 can be sealed by transparent glass. The light beam emitted by the laser emitter 2 is emitted to the target 7 to be measured through the light through hole 22.
An operation block 26 is fixed on the outer surface of the laser emitter 2, the operation block 26 is a cylinder or a prism, one end of the operation block 26, which is far away from the laser emitter 2, penetrates through a sliding hole 27, the diameter or width of the operation block 26 is slightly smaller than the width of the sliding hole 27, a sliding pin 28 which can slide along the direction close to or far away from a clamping groove 29 is arranged on the end surface of one end of the operation block 26, which is far away from the laser emitter 2, the sliding pin 28 can be a long strip, one part of the sliding pin 28 can slide into the clamping groove 29, and the other part is still fixed on the end surface of the operation block 26, so that the purpose of fixing the laser emitter 2 is achieved.
Since the width of each card slot 29 is a constant value, a user can control the position of the slide pin 28 inserted into the card slot 29 according to measurement requirements, and can also calculate the sliding distance of the laser emitter 2 according to the position of the slide pin 28 inserted into the card slot 29.
The dial 31 is set to be a cuboid, scale marks and degree marks are arranged on one side, away from the supporting shaft 11, of the dial 31, the scale marks are set to be semicircular, the scale marks are divided into two parts, one scale mark is set to be a clockwise scale of 0-90 degrees, the other scale mark is set to be an anticlockwise scale of 0-90 degrees, the clockwise scale of 0-90 degrees and the anticlockwise scale of 0-90 degrees have the same scale mark of 0 degree, and the scale marks are symmetrically arranged by taking the scale mark of 0 degree as a symmetry axis.
Referring to fig. 4, the input unit 4 receives a rotation angle and a movement distance along the object 7 to be measured, the data processing unit 5 calculates a length of the object 7 to be measured according to the rotation angle and the movement distance along the object 7 to be measured, and the output unit 6 is configured to output the calculated distance to be measured; according to the scheme, the input unit 4, the data processing unit 5 and the output unit 6 are set as calculators, the rotating angle and the moving distance along the target 7 to be measured are input through a numeric keyboard arranged on the calculators, a data processing chip of the calculators calculates the distance to be measured according to the input rotating angle and the moving distance along the target 7 to be measured, and a display on the calculators receives and displays data signals of the distance to be measured calculated by the data processing chip.
In other embodiments, a laser range finder 100 may be connected to a mobile terminal or a computer through a wireless signal, and a user remotely operates the laser range finder 100 to measure the target 7 to be measured according to an application program on the mobile terminal and the computer, reads the deflection angle and the moving distance of the laser emitter 2, calculates the distance to be measured through a calculation function carried by the user, and transmits information of the distance to be measured to the user through a display.
The implementation principle of the laser range finder 100 in the embodiment of the present application is as follows: one end of a supporting shaft 11 is fixedly arranged on a bearing platform 1, the other end of the supporting shaft 11 is connected with a laser emitter 2, the laser emitter 2 can move on the supporting shaft 11 to be close to or far away from a target 7 to be measured, the laser emitter 2 can rotate on the supporting shaft 11, the rotating plane of the laser emitter 2 is parallel to the surface of the bearing platform 1, and an angle measurer 3 is arranged and can be used for measuring the rotating angle of the laser emitter 2; the user inputs the rotation angle and the moving distance along the target 7 to be measured through the input unit 4, the data processing unit 5 calculates the length of the target 7 to be measured according to the rotation angle and the moving distance along the target 7 to be measured, which are input by the user, and the output unit 6 outputs the calculated distance to be measured. In this embodiment, the data processing unit 5 may be a chip, the input unit 4 and the output unit 6 may be touch panels, the data processing unit 5 may be in communication with a controller of the laser emitter 2, and the input unit 4 and the output unit 6 may be disposed on the housing 21 and electrically connected to the controller of the laser emitter 2.
Referring to fig. 5, the present application employs a laser range finder 100, which can be used to measure the distance between any two points, preferably two points on the flat surface of an object, and the distance between any two points is preferably a straight-line distance between the two points, and the method includes:
s1: the arbitrary two points are respectively set as a starting point standard point O 1 And end point reference point O 2 Starting point marking point O 1 And end point criteriaPoint O 2 The distance between the two is a first distance D to be measured, and the starting point marking point O 1 And end point reference point O 2 The connecting line between them is the first straight line. To increase the accuracy of the subsequent laser projection position, the point O can be marked at the starting point 1 And end point reference point O 2 Pasting a mark;
s2: selecting any point between the first distances D to be measured as an initial point O 3 The detection light from the laser emitter 2 is incident on the point O 3 And forming a visible light spot, adjusting the position of the laser emitter 2 to make the detection beam emitted by the laser emitter 2 perpendicular to the first line, thereby setting the position as a first detection position P of the laser emitter 2 1 The first detection position P 1 A straight line perpendicular to the first straight line is defined as a normal line;
s3: deflecting said laser transmitter to a starting point reference point O 1 Recording the deflection of the laser emitter 2 from the normal to the starting point marking point O 1 The deflection angle of (a) is a first deflection angle alpha;
s4: deflecting the laser emitter 2 to enable the detection light beam of the laser emitter 2 to be positioned on the normal line, and adjusting the position of the laser emitter 2 to a second detection position P along the normal line direction 2 The first detection position P 1 And the second detection position P 2 A predetermined distance d between them, a second detection position P 2 To O 3 The vertical distance of the second measuring distance L is set as the first measuring distance L; since the distance that the laser emitter 2 moves along the slide groove 25 is constant. Or the distance the laser emitter 2 moves along the chute 25. So that the preset distance d is known.
S5: deflecting said laser emitter 2 to a starting point reference point O 1 Recording the deflection of the laser emitter 2 from the normal to the starting point marking point O 1 The deflection angle of (b) is a second deflection angle β;
s6: deflecting the laser emitter 2 to enable the detection beam of the laser emitter 2 to be positioned on the normal line, and continuing to deflect the laser emitter 2 to the end point marking point O 2 Recording the deflection of the laser emitter 2 from the normal to the end reference point O at this time 2 Of (2)The turning angle is a third turning angle gamma;
s7: respectively calculating a second distance L, O to be measured according to the first deflection angle alpha, the second deflection angle beta, the third deflection angle gamma and the preset distance d 1 O 3 The distance between the two points and the second distance L to be measured are used for calculating O 1 O 3 And (4) the distance between the two points, and finally solving the first distance D to be measured. The calculation process is obtained by the following trigonometric function relations (1) - (3):
L×tan(β)＝(L+d)×tan(α) (1)
L＝d×tan(α)/[tan(β)-tan(α)] (2)
D＝L×[tan(β)+tan(γ)] (3)
in summary, with the laser range finder 100 provided in the present application, the laser emitter 2 is used to capture the surface of the target 7 to be measured or the surface projection light spot determined by the point to be measured, so that the light beam emitted by the laser emitter 2 is perpendicular to the surface of the target 7 to be measured, and then the laser emitter 2 is deflected to the starting point marking point O 1 Projecting a light spot; returning the laser emitter 2 to be vertical to the surface of the target 7 to be measured, moving the laser emitter to the direction close to the object for a preset distance d, and then marking the point O to the starting point again 1 Projecting a light spot, and using a laser emitter 2 to turn to an end point marking point O 2 Projecting a light spot so that the initial position P of the laser transmitter 2 can be calculated 1 And the initial point O 3 According to the marked starting point, marking point O 1 End point mark and test point O 2 And obtaining a first deflection angle alpha, a second deflection angle beta, a third deflection angle gamma and a preset distance D, and calculating a second distance to be measured L and a first distance to be measured D according to the geometric relationship. The laser range finder 100 adopted by the scheme has a long laser range, so that a long-distance target can be detected, the propagation speed of laser is high, a measurement result can be obtained quickly, and the working difficulty of measuring personnel is reduced; the emergent light power of the adopted laser is very high, and the laser can be compared with the external environment to have very high identification degree, so that the detection targets in different environments can be detected, and the working efficiency of measuring personnel is improved.
In other laser range finders on the market, the range finding method is that a laser emits detection light to enter the surface of an object to be measured, reflected light of the detection light is obtained through a laser receiving device, the time difference between the process of emitting and receiving the laser is recorded, and the half propagation path of the laser is calculated to be the distance to be measured by using the propagation speed of the laser. The laser range finder 100 can only measure the distance from the target to be measured to the laser, and the laser range finder needs to be provided with a timer and a laser receiving device, but the scheme does not need the timer and the laser receiving device, so the scheme has the advantage of low cost; in addition, the scheme can measure the distance from the target to be measured to the laser device and the distance from the target to be measured to any other point, so the scheme also has the advantage of wide application range.
It should be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional units and modules is only used for illustration, and in practical applications, the above function distribution may be performed by different functional units and modules as needed, that is, the internal structure of the device is divided into different functional units or modules, so as to perform all or part of the above described functions.
Claims (10)
1. A laser rangefinder, comprising: the device comprises a bearing platform (1), a laser emitter (2) and an angle measurer (3), wherein a supporting shaft (11) is arranged on the bearing platform (1), the laser emitter (2) can rotate around the supporting shaft (11), and the angle measurer (3) is used for measuring the rotating angle of the laser emitter (2) rotating around the supporting shaft (11); the rotation plane of the laser emitter (2) is parallel to the bearing platform (1), and the laser emitter (2) can move towards the direction close to or far away from the target to be measured.
2. A laser rangefinder as claimed in claim 1, wherein: laser emitter (2) are still including holding shell (21) of laser emitter (2), spout (25) have been seted up to shell (21) inside, the side of laser emitter (2) is connected with slider (24), slider (24) can carry laser emitter follows spout (25) slide.
3. A laser rangefinder according to claim 2, characterized in that: the distance of the laser emitter (2) moving along the sliding groove (25) is a constant value.
4. A laser rangefinder as claimed in claim 2, wherein: the distance of the laser emitter (2) moving along the sliding groove (25) can be measured.
5. A laser rangefinder according to claim 2, characterized in that: the supporting shaft (11) is perpendicular to the bearing platform (1), a through hole (23) is formed in the shell (21), and the supporting shaft (11) penetrates through the through hole (23).
6. A laser rangefinder according to claim 4, wherein: angular surveying ware (3) include calibrated scale (31) and pointer (32), calibrated scale (31) are fixed in back shaft (11) is kept away from the one end of load-bearing platform (1), pointer (32) are the L shape, the one end of pointer (32) with shell (21) is fixed, and the other end is buckled extremely calibrated scale (31) are on the surface.
7. A laser rangefinder according to claim 2, characterized in that: the laser emitter (2) is connected with an operation block (26), the operation block (26) is controlled to control the laser emitter (2) to slide along a sliding groove (25), and a sliding nail (28) capable of sliding towards the bearing platform (1) is arranged on the operation block (26).
8. A laser range finder as claimed in claim 7, wherein: the outer surface of the shell (21) is provided with a sliding hole (27) and a clamping groove (29), the operating block (26) can slide in the sliding hole (27), and the sliding nail (28) can be inserted in the clamping groove (29).
9. The laser range finder of claim 6, wherein: the dial (31) is provided with a clockwise scale of 0-90 degrees and a counterclockwise scale of 0-90 degrees, the clockwise scale of 0-90 degrees and the counterclockwise scale of 0-90 degrees have the same scale mark of 0, and the scale marks are symmetrically arranged by taking the scale mark of 0 as a symmetry axis.
10. A laser rangefinder according to claim 1, characterized in that: laser range finder still includes input unit (4), data processing unit (5) and output unit (6), the both ends of data processing unit (5) respectively with input unit (4) and output unit (6) electric connection, input unit (4) receive the turned angle of user's input and along the distance that the target that awaits measuring removed, data processing unit (5) basis turned angle and along the distance that the target that awaits measuring removed calculate the length of the object that awaits measuring, output unit (6) be used for with the length output of the target that awaits measuring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210982712.2A CN115406400A (en) | 2022-08-16 | 2022-08-16 | Laser range finder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210982712.2A CN115406400A (en) | 2022-08-16 | 2022-08-16 | Laser range finder |
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| CN115406400A true CN115406400A (en) | 2022-11-29 |
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| CN202210982712.2A Pending CN115406400A (en) | 2022-08-16 | 2022-08-16 | Laser range finder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116147597A (en) * | 2023-04-24 | 2023-05-23 | 四川跃航智能设备制造有限公司 | Electric automobile charging pile installation reference measurement device and method |
| CN116577794A (en) * | 2023-07-12 | 2023-08-11 | 连云港市建设工程质量检测中心有限公司 | Laser range finder for measuring dimension of blank room |
-
2022
- 2022-08-16 CN CN202210982712.2A patent/CN115406400A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116147597A (en) * | 2023-04-24 | 2023-05-23 | 四川跃航智能设备制造有限公司 | Electric automobile charging pile installation reference measurement device and method |
| CN116147597B (en) * | 2023-04-24 | 2023-06-20 | 四川跃航智能设备制造有限公司 | Electric automobile charging pile installation reference measurement device and method |
| CN116577794A (en) * | 2023-07-12 | 2023-08-11 | 连云港市建设工程质量检测中心有限公司 | Laser range finder for measuring dimension of blank room |
| CN116577794B (en) * | 2023-07-12 | 2023-09-26 | 连云港市建设工程质量检测中心有限公司 | Laser range finder for measuring dimension of blank room |
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