CN214224151U - Device for calibrating laser swinger - Google Patents
Device for calibrating laser swinger Download PDFInfo
- Publication number
- CN214224151U CN214224151U CN202023299307.6U CN202023299307U CN214224151U CN 214224151 U CN214224151 U CN 214224151U CN 202023299307 U CN202023299307 U CN 202023299307U CN 214224151 U CN214224151 U CN 214224151U
- Authority
- CN
- China
- Prior art keywords
- laser
- distance
- swinger
- laser swinger
- angle
- 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.)
- Active
Links
Images
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The utility model relates to a device for calibrating laser swinger, the device includes: a rotation unit configured to rotate the laser swinger; a ranging unit configured to determine a first distance between the laser swinger and a receiving unit that receives laser light emitted by the laser swinger; and a control unit configured to receive the first distance, a second distance determined by positions of the laser light emitted by the laser swinger on the receiving unit before and after rotating by a first angle, respectively, and determine whether the laser swinger needs to be calibrated based on the first distance, the second distance, and the first angle. The foundation the utility model discloses a device can realize right with the help of self integrated range unit the laser swinger is in the calibration of arbitrary non-fixed position department at the receiving element, can ensure the high efficiency of calibration operation when guaranteeing the calibration precision.
Description
Technical Field
The utility model relates to an intelligence survey and drawing field more specifically relates to a device for calibrating laser and sweeping flat appearance and a method for calibrating laser and sweeping flat appearance.
Background
The horizontal axis precision of the laser swinger refers to the range of the size of an included angle between the laser surface of the swinger and an absolute horizontal plane in each of the front direction, the rear direction, the left direction and the right direction of the horizontal plane when the laser swinger scans the horizontal plane after being normally leveled, such as +/-20 arcsec. The accuracy of the horizontal axis is also often expressed in terms of geometrical principles as a range of height values outside a certain distance, such as 30 meters where the height is within 3 mm.
The inspection and calibration system for the horizontal axis accuracy of laser swipes, which is commonly available on the market, requires that the laser swipes be placed at a fixed position at a known distance from a target board (or laser receiver). In consideration of the requirements for accuracy conversion and accuracy comparison, and the difficulty of identifying the laser line, the distance is usually an integer other than 5 meters, such as 5 meters, 10 meters, or 30 meters.
The existing laser swinger needs to be positioned at a certain set distance, i.e. a known distance, e.g. 10 meters. When the laser swinger is used for detecting and calibrating the precision of a horizontal shaft, the requirement on the distance precision from the laser swinger to laser detection equipment (including a wall, a target and a laser receiver) is high, and if the laser detection equipment is not accurately placed at a set position, distance deviation can be generated, so that the detection is inaccurate, and the calibration is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the profound understanding of the problems presented in the background, the inventors of the present invention have considered how to improve the efficiency of the detection and calibration process while improving accuracy. The inventor of the utility model innovatively thinks of for example adding a laser rangefinder unit in this side of laser sweep flat appearance to overcome the adverse effect in the aspect of the precision that traditional fixed distance brought on the one hand, also further improved measurement accuracy with the help of laser rangefinder unit's help simultaneously.
Particularly, the utility model provides a device for calibrating laser swinger, a serial communication port, the device includes:
a rotation unit configured to rotate the laser swinger;
a ranging unit configured to determine a first distance between the laser swinger and a receiving unit that receives laser light emitted by the laser swinger; and
a control unit configured to receive the first distance, a second distance determined by positions of the laser light emitted by the laser swinger on the receiving unit before and after rotating by a first angle, respectively, and determine whether calibration of the laser swinger is required based on the first distance, the second distance, and the first angle.
The foundation the utility model discloses a device can realize right with the help of self integrated range unit the laser swinger is in the calibration of arbitrary non-fixed position department at the receiving element, can ensure the high efficiency of calibration operation when guaranteeing the calibration precision.
In an embodiment according to the present invention, the apparatus further includes:
a base configured to support a laser swinger to be mounted thereon, the rotating unit being disposed on the base and rotating the laser swinger by the first angle based on control commands received from the control unit.
In this way, the angle of rotation of the laser swinger physically connected to the base can be controlled, for example by means of a rotary unit, so that it can be coupled to the control unit and used to determine whether a calibration of the laser swinger is required and, in the case of a calibration of the laser swinger, to determine calibration parameters.
In an embodiment according to the present invention, the first angle is one angle value among 180 degrees, 90 degrees or 270 degrees. It will be appreciated by those skilled in the art that these three angles are exemplary and not limiting, and can be other angles such as 60 degrees, 120 degrees, etc., as long as the first angle is used to determine whether the laser scanner needs to be calibrated.
In an embodiment according to the present invention, the distance measuring unit is configured to measure a third distance between the first position of the base and the receiving unit, wherein a projection of a line between a laser emitting position of the laser swinger and the first position in a laser emitting direction of the distance measuring unit has a fourth distance, and the first distance is calculated from the third distance and the fourth distance. It will be appreciated by those skilled in the art that the two-stage measurement using the distance measuring device is merely an example, and it is also possible to set the laser emitting position of the laser distance measuring unit to the center position of the laser swinger, for example, so that the distance between the laser swinger and the receiving unit can be directly measured only by the laser distance measuring unit. Alternatively, the receiving unit may be any one of a laser receiver, a target plate, an electronic target, a scale, a user interface, and a wall surface.
In an embodiment according to the present invention, in a case where the control unit determines that the laser swinger needs to be calibrated, the control unit determines a calibration signal based on the first distance, the second distance, and the first angle, and sends the calibration signal to the laser swinger. Preferably, in an embodiment according to the present invention, there is a wired or wireless connection between the base and the laser swinger, the wired or wireless connection being configured to transmit the calibration signal from the control unit to the laser swinger. More preferably, in an embodiment according to the present invention, the wireless connection includes at least one of an infrared connection, a bluetooth connection, or a WiFi connection.
Furthermore, optionally, in an embodiment according to the present invention, there is a wireless connection between the laser receiving unit and the control unit, the wireless connection being configured to transmit a second distance determined by the position of the laser swinger on the laser receiving unit before and after rotating the first angle, respectively, from the laser receiving unit to the control unit.
Further preferably, in an embodiment according to the present invention, the apparatus further includes: a display unit configured to display a maximum height difference value determined based on the first and second distances and a maximum allowable error of the laser swinger.
Furthermore, a second aspect of the present invention provides a method for calibrating a laser scanner, characterized in that the method comprises:
determining a first distance between the laser swinger and a receiving unit which receives laser light emitted by the laser swinger by means of a distance measuring unit;
receiving second distances determined according to positions of the laser emitted by the laser swinger on the receiving unit before and after the laser is rotated by a first angle; and
determining whether calibration of the laser swinger is required based on the first distance, the second distance, and the first angle.
According to the utility model discloses a method can realize right with the help of self integrated range unit the laser swinger is in the calibration of arbitrary non-fixed position department at the receiving element, can ensure the high efficiency of calibration operation when guaranteeing the calibration precision.
In an embodiment according to the present invention, the method further includes:
rotating the laser swinger by the first angle based on a control command received from the control unit.
In an embodiment according to the present invention, determining a first distance between the laser swinger and a receiving unit that receives laser light emitted by the laser swinger by means of a distance measuring unit further comprises:
measuring a third distance between a first position of the base and the receiving unit by means of the ranging unit, wherein a projection of a connecting line between a laser emission position of the laser swinger and the first position in a laser emission direction of the ranging unit has a fourth distance; and
and calculating the first distance according to the third distance and the fourth distance.
In an embodiment according to the present invention, the method further includes:
in the case that the control unit determines that the laser swinger needs to be calibrated, the control unit determines a calibration signal based on the first distance, the second distance and the first angle; and
and sending the calibration signal to the laser swinger by the control unit.
In an embodiment according to the present invention, the method further includes:
transmitting a second distance determined by the positions of the laser swingers on the receiving unit before and after the rotation by the first angle, respectively, from the receiving unit to the control unit.
In an embodiment according to the present invention, the method further includes:
displaying a maximum height difference value determined based on the first and second distances and a maximum allowable error of the laser swinger.
According to the utility model discloses a device and method can realize with the help of self integrated range unit right the laser swinger is in the calibration of arbitrary non-fixed position department at the receiving element, can ensure the high efficiency of calibration operation when guaranteeing the calibration precision.
Drawings
Embodiments are shown and described with reference to the drawings. These drawings are provided to illustrate the basic principles and thus only show the aspects necessary for understanding the basic principles. The figures are not to scale. In the drawings, like reference numerals designate similar features.
Figure 1 shows a schematic view of an apparatus for calibrating a laser scanner according to one embodiment of the present invention;
figure 2 shows a schematic view of an apparatus for calibrating a laser scanner according to another embodiment of the invention;
figure 3 shows a schematic structural view of a base comprised by the apparatus for calibrating a laser scanner according to an embodiment of the invention;
figure 4 shows a schematic view of an apparatus for calibrating a laser scanner according to an embodiment of the invention; and
fig. 5 shows a flow diagram of a method for calibrating a laser scanner according to an embodiment of the invention.
Other features, characteristics, advantages and benefits of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
Detailed Description
In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings illustrate, by way of example, specific embodiments in which the invention may be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments according to the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.
The technical problem that exists in the prior art is that the structure of the device for calibrating the laser swinger in the prior art is fixed, wherein the distance between the laser swinger and the laser receiver must be fixed, the requirement on the calibration site is high, the inspection precision cannot be guaranteed, and the calibration effect is influenced.
In view of the above technical problem, the inventor of the present invention also considers how to improve the efficiency of the detection and calibration process while improving the accuracy. The inventor of the utility model innovatively thinks of for example adding a laser rangefinder unit in this side of laser sweep flat appearance to overcome the adverse effect in the aspect of the precision that traditional fixed distance undersize brought on the one hand, also further improved measurement accuracy with the help of laser rangefinder unit simultaneously.
Particularly, the utility model provides a device for calibrating laser swinger. As shown in fig. 1. The illustrated apparatus includes the following:
a rotation unit configured to rotate the laser scanner 1;
a distance measuring unit 6, wherein the distance measuring unit 6 is configured to determine a first distance between the laser swinger 1 and a receiving unit 4 for receiving laser light emitted by the laser swinger 1; and
a control unit (not shown in fig. 1) configured to receive the first distance, a second distance determined by the position of the laser light emitted by the laser swinger 1 on the receiving unit 4 before and after a rotation by a first angle, respectively, and to determine whether a calibration of the laser swinger 1 is required based on the first distance 3, the second distance and the first angle.
Optionally, the device for calibrating a laser swinger according to the present invention can also comprise a base 2, said base 2 being configured for supporting a laser swinger 1 to be mounted thereon; the above-mentioned rotating unit is provided on the base 2 and rotates the laser swinger 1 based on control commands received from a control unit.
More specifically, it is first necessary to mount the laser swinger 1 on the base 2 on which the laser swinger 1 is located and to place this whole together at an arbitrary position outside the receiving unit 4. Then the X-axis of the laser swinger 1 is arranged to face the laser receiving unit 4 in the forward direction, and then the machine is started. Next, a distance measuring unit 6, such as for laser ranging, measures to obtain a result D1, which is marked with reference number 8 in the drawing, that is, the distance between the laser emitting port of the laser distance measuring unit 6 and the opposite receiving unit 4, it should be understood by those skilled in the art that, in an embodiment according to the present invention, the distance measuring unit 6 is configured to measure a third distance 8(D1) between a first position (e.g., a right edge position shown in fig. 1) of the base 2 and the laser receiving unit 4, wherein a projection of a connecting line between the laser emitting position of the laser sweep leveling instrument 1 and the first position (e.g., the right edge position shown in fig. 1) in the laser emitting direction of the distance measuring unit 6 has a fourth distance 7(D), and the first distance 3 is calculated from the third distance 8 and the fourth distance 7, in the embodiment shown in fig. 1, the first distance 3(D) is calculated from the sum of the third distance 8 and the fourth distance 7. It will be appreciated by those skilled in the art that the two-stage measurement with the distance measuring device 6 is merely an example, and it is also possible to set the laser emitting position of the laser distance measuring unit 6 to the center position of the laser swinger 1, for example, so that the distance between the laser swinger 1 and the laser receiving unit 4 can be directly measured only by the laser distance measuring unit 6. Here, the receiving unit 4 is, for example, a wall surface. That is, in the embodiment shown in fig. 1, the distance between the laser swinger 1 and the laser receiving unit 4 is calculated as: d ═ D1+ D. Next, the accuracy index of the laser scanner 1 can be converted from an angle, tan (a), H/D, i.e. H tan (a), D, wherein the angle a is marked with the reference 10 in fig. 1, which indicates the angle between the laser emitted by the laser level 1 and the horizontal plane 5, and the height difference is marked with the reference 11. For example, the maximum permissible inclination angle is 0.2 degrees, and the maximum permissible height difference at the surface of the receiving unit 4 after, for example, a rotation of 180 degrees is D tan (0.2 degrees), where D is the distance between the laser scanner 1 and the laser receiving unit 4. According to the utility model discloses a device can realize right with the help of self integrated range unit laser swinger 1 is in the calibration of arbitrary non-fixed position department at receiving element 4, can ensure the high efficiency of calibration operation when guaranteeing the calibration precision. The rotation unit of the base 2 is configured to rotate the laser swinger 1 by the first angle based on control commands received from the control unit. In this way the rotation angle of the laser swinger 1 physically connected to the base 2 can be controlled and can thus be used in conjunction with a control unit for determining whether a calibration of the laser swinger 1 is required and, in the case of a calibration of the laser swinger 1, for determining calibration parameters. Preferably, in an embodiment according to the present invention, the first angle is one angle value among 180 degrees, 90 degrees, or 270 degrees. It will be appreciated by those skilled in the art that these three angles are exemplary and not limiting, and can be other angles such as 60 degrees, 120 degrees, etc., as long as the first angle is used to determine whether the laser scanner needs to be calibrated.
Fig. 2 shows a schematic view of a device for calibrating a laser scanner according to another exemplary embodiment of the present invention, from which it can be seen that the device differs from fig. 1 in that the device of fig. 2 has an additional display unit 12, the display unit 12 being designed to display a maximum height difference H determined on the basis of the first and second distances and a maximum permissible error of the laser scanner 1. Specifically, in the embodiment shown in fig. 2, the distance between the laser swinger 1 and the laser receiving unit 4 is calculated as: D-D1 + D, wherein D1 is marked with the reference numeral 8 in fig. 2. Next, the accuracy index of the laser scanner 1 can be converted from an angle, tan (a), H/D, i.e. H tan (a), D, wherein the angle a is marked with the reference 10 in fig. 1, which indicates the angle between the laser emitted by the laser level 1 and the horizontal plane 5, and the height difference is marked with the reference 11. For example, the maximum allowable inclination angle is 0.5 degrees, and then the maximum allowable height difference H at the surface of the laser receiving unit 4 after, for example, 180 degrees rotation is equal to D tan (0.5 degrees), where D is the distance between the laser scanner 1 and the laser receiving unit 4. That is, H obtained as described above can be displayed on the display unit 12.
Furthermore, fig. 3 shows a schematic structural view of a base 2 comprised by an apparatus for calibrating a laser scanner according to an embodiment of the invention. As can be seen from fig. 3, in case the control unit 13 determines that the laser swinger (not shown in fig. 3) needs to be calibrated, the control unit 13 determines a calibration signal based on the first distance D, the second distance H and the first angle and sends the calibration signal to the laser swinger 1. Preferably, in an embodiment according to the present invention, there is a wired or wireless connection between the base 2 and the laser swinger 1, the wired or wireless connection being configured to transmit the calibration signal from the control unit 13 to the laser swinger 1. More preferably, in an embodiment according to the present invention, the wireless connection includes at least one of an infrared connection, a bluetooth connection, or a WiFi connection. Alternatively, the receiving unit 4 may be any one of a laser receiver, a target plate, an electronic target, a scale, a user interface, and a wall surface. When a target plate, a scale and a wall surface are selected, the recording of the laser position needs to be realized manually or by matching with other devices. In the present invention, a laser receiver is preferred, so that a communication connection between the laser receiver and the control unit 13 may be realized, for example a wireless connection configured to transmit a second distance determined by the position of the laser swinger 1 on the laser receiver before and after the rotation of the first angle, respectively, from the laser receiver to the control unit 13 for determining whether a calibration is required. It should be noted that the control unit 13 of the present embodiment is disposed in the base 2, and it is understood that the control unit 13 may also be disposed at the end of the laser swinger 1, or at the end of the laser receiver, or implemented by a separate device, such as a smart phone; similarly, the laser distance measuring unit 6 may be disposed on the base 2 or on the laser swinger 1. The laser swinger 1 can communicate with the laser receiver and the base 2.
Furthermore, the control of the laser swinger 1 mentioned in the exemplary embodiment shown in fig. 1 can be realized, for example, by a laser receiver associated with the laser swinger 1, which is equipped with a wireless communication function.
Fig. 4 shows a schematic view of an apparatus for calibrating a laser scanner according to an embodiment of the invention, employing a laser receiver 15 as a receiving unit. The device directly gives a judgment result in the precision inspection and calibration process of the laser swinger 1, and the method comprises the following specific steps:
first, the laser swinger 1 is mounted on the base 2 of the laser swinger 1 and this whole is placed together at an arbitrary position outside the laser receiver 15. Next, the X-axis of the laser swinger 1 is set to face forward towards the laser receiver 15, followed by power-on. Then, measurement is performed using the laser ranging unit 6, and the result D1, i.e., the distance between the laser ranging unit 6 and the laser receiver 15, is obtained. Next, the distance D between the laser swinger 1 and the laser receiver 15 is calculated, D being D1+ D, where D1 is marked with reference number 8 in fig. 4, where D is the projection of the line between the laser emission position of the laser swinger 1 and the first position (e.g., the right edge position shown in fig. 4) in the laser emission direction of the distance measuring unit 6 with a fourth distance 7 (D).
The accuracy index of the laser scanner 1 can then be converted from an angle, tan (a) ═ H/D, i.e. H ═ tan (a) × D, where angle a is marked in fig. 1 with the reference 10, which represents the angle between the laser light emitted by the laser level 1 and the horizontal plane 5, and the height difference is marked with the reference 11. For example, the maximum allowed inclination angle is 0.3 degrees, then the maximum height difference allowed at the surface of the laser receiver 15 after, for example, a rotation of 180 degrees is H equal to D tan (0.3 degrees), where D is the distance between the laser scanner 1 and the laser receiver 15. That is, H obtained as described above can be displayed on the display unit 12. And then, after the reading of the laser receiver 15 of the laser swinger 1 is stable, recording the offset DX + between the current laser position of the laser swinger 1 and the zero point of the laser receiver 15. Next, the laser swinger 1 is rotated, for example, 180 degrees, such that the X-axis is directed negatively towards the laser receiver 15, and after the reading of the laser receiver 15 of the laser swinger 1 has stabilized, the offset DX-between the current laser position of the laser swinger 1 and the zero point of the laser receiver 15 is recorded. Next, X-axis accuracy deviation DX ((DX +) - (DX-)/2) is calculated.
And finally, comparing DX with H calculated in the step to judge whether the X-axis precision is qualified.
Repeating the above steps can calibrate another circumferential direction, i.e. for example, rotating the laser swinger 1 by 90 degrees, repeating the method described in the above steps to obtain DY, and determining whether the Y-axis accuracy is acceptable. If a calibration operation is required, the laser scanner 1 is calibrated in a calibration mode until the X-axis and Y-axis accuracies tested according to the steps are qualified.
In addition to the device structure described above, a second aspect of the present invention proposes a method 500 for calibrating a laser swinger. As shown in fig. 5, a method 500 for calibrating a laser scanner includes:
first, in method step 510, a first distance between the laser swinger and a receiving unit which receives laser light emitted by the laser swinger is determined by means of a distance measuring unit;
next, in method step 520, a second distance determined according to the positions of the laser emitted by the laser swinger on the receiving unit before and after the rotation by the first angle is received; and
finally, in method step 530, it is determined whether calibration of the laser swinger is required based on the first distance, the second distance and the first angle.
According to the utility model discloses a method can realize right with the help of self integrated range unit the laser swinger is in the calibration of arbitrary non-fixed position department at the receiving element, can ensure the high efficiency of calibration operation when guaranteeing the calibration precision.
In an embodiment according to the present invention, the method 500 further includes:
rotating the laser swinger by the first angle based on a control command received from the control unit.
Among embodiments according to the present invention, the method step 510 of determining a first distance between the laser swinger and a receiving unit receiving laser light emitted by the laser swinger by means of a distance measuring unit further comprises:
measuring a third distance between a first position of the base and the receiving unit by means of the ranging unit, wherein a projection of a connecting line between a laser emission position of the laser swinger and the first position in a laser emission direction of the ranging unit has a fourth distance; and
and calculating the first distance according to the third distance and the fourth distance.
In an embodiment according to the present invention, the method 500 further includes:
in the case that the control unit determines that the laser swinger needs to be calibrated, the control unit determines a calibration signal based on the first distance, the second distance and the first angle; and
and sending the calibration signal to the laser swinger by the control unit.
In an embodiment according to the present invention, the method 500 further includes:
transmitting a second distance determined by the positions of the laser swingers on the receiving unit before and after the rotation by the first angle, respectively, from the receiving unit to the control unit.
In an embodiment according to the present invention, the method 500 further includes:
displaying a maximum height difference value determined based on the first and second distances and a maximum allowable error of the laser swinger.
According to the utility model discloses a device and method can realize with the help of self integrated range unit right the laser swinger is in the calibration of arbitrary non-fixed position department at the receiving element, can ensure the high efficiency of calibration operation when guaranteeing the calibration precision.
Generally speaking, the utility model discloses can realize that the user carries out the horizontal axis precision inspection and the calibration of laser swinger at arbitrary distance, reduce the installation requirement, improve the efficiency of precision inspection and calibration. In a horizontal axis precision inspection and calibration system of a traditional laser swinger, the laser swinger is arranged on a base integrating a laser ranging function. The laser swinger and the base are placed at any position outside the laser receiver (including the target and the wall surface). When the inspection or calibration is started, the base firstly measures the distance between the laser swinger and the laser receiver and calculates the precision requirement. The calculated precision requirement can be displayed through an LCD and used as a precision index reference for subsequent inspection and calibration. The precision requirement obtained by the calculation can be matched with a digital receiver to directly obtain a precision test result, or a precision compensation value is directly calculated to meet the precision calibration requirement.
While various exemplary embodiments of the invention have been described, it will be apparent to those skilled in the art that various changes and modifications can be made which will achieve one or more of the advantages of the invention without departing from the spirit and scope of the invention. Other components performing the same function may be substituted as appropriate by those skilled in the art. It should be understood that features explained herein with reference to a particular figure may be combined with features of other figures, even in those cases where this is not explicitly mentioned. Furthermore, the methods of the present invention can be implemented in either all software implementations using appropriate processor instructions or in hybrid implementations using a combination of hardware logic and software logic to achieve the same result. Such modifications to the solution according to the invention are intended to be covered by the appended claims.
Claims (10)
1. An apparatus for calibrating a laser scanner, the apparatus comprising:
a rotation unit configured to rotate the laser swinger;
a ranging unit configured to determine a first distance between the laser swinger and a receiving unit that receives laser light emitted by the laser swinger; and
a control unit configured to receive the first distance, a second distance determined by positions of the laser light emitted by the laser swinger on the receiving unit before and after rotating by a first angle, respectively, and determine whether calibration of the laser swinger is required based on the first distance, the second distance, and the first angle.
2. The apparatus of claim 1, further comprising:
a base configured to support a laser swinger to be mounted thereon, the rotating unit being disposed on the base and rotating the laser swinger by the first angle based on control commands received from the control unit.
3. The apparatus of claim 2, wherein the first angle is one of 180 degrees, 90 degrees, or 270 degrees in value.
4. The device of claim 3, wherein the distance measuring unit is configured to measure a third distance between the first position of the base and the receiving unit, wherein a projection of a line between the laser emission position of the laser swinger and the first position in a laser emission direction of the distance measuring unit has a fourth distance, and the first distance is calculated from the third distance and the fourth distance.
5. The apparatus of claim 4, wherein in the event that the control unit determines that the laser swinger needs to be calibrated, the control unit determines a calibration signal based on the first distance, the second distance, and the first angle, and sends the calibration signal to the laser swinger.
6. The apparatus of claim 5, wherein there is a wired or wireless connection between the base and the laser swinger, the wired or wireless connection configured to transmit the calibration signal from the control unit to the laser swinger.
7. The apparatus of claim 6, wherein the wireless connection comprises at least one of an infrared connection, a Bluetooth connection, or a WiFi connection.
8. The apparatus according to claim 5 or 6, characterized in that there is a wireless connection between the receiving unit and the control unit, which wireless connection is configured to transmit a second distance determined by the position of the laser swinger on the receiving unit before and after rotation by the first angle, respectively, from the receiving unit to the control unit.
9. The apparatus of claim 1, further comprising:
a display unit configured to display a maximum height difference value determined based on the first and second distances and a maximum allowable error of the laser swinger.
10. The apparatus of claim 1, wherein the receiving unit is any one of a laser receiver, a target plate, an electronic target, a ruler, a user interface, and a wall surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023299307.6U CN214224151U (en) | 2020-12-31 | 2020-12-31 | Device for calibrating laser swinger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023299307.6U CN214224151U (en) | 2020-12-31 | 2020-12-31 | Device for calibrating laser swinger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214224151U true CN214224151U (en) | 2021-09-17 |
Family
ID=77707494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023299307.6U Active CN214224151U (en) | 2020-12-31 | 2020-12-31 | Device for calibrating laser swinger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214224151U (en) |
-
2020
- 2020-12-31 CN CN202023299307.6U patent/CN214224151U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9921062B2 (en) | Surveying instrument | |
| US10684129B2 (en) | Method for checking and/or calibrating a horizontal axis of a rotating laser | |
| US10823565B2 (en) | Method for measuring a measurement distance between a rotating laser and a laser receiver | |
| US11512954B2 (en) | Laser level with electronic tilt sensor | |
| CN106197308B (en) | Measuring device | |
| Mechelke et al. | Comparative investigations into the accuracy behaviour of the new generation of terrestrial laser scanning systems | |
| US9441963B2 (en) | Multifunction laser leveling tool | |
| CN109387826B (en) | Method for measuring angle and distance, method for drawing track diagram and laser ranging system | |
| US11953322B2 (en) | Method for checking and/or calibrating a horizontal axis of a rotating laser | |
| EP3489625B1 (en) | Surveying instrument | |
| CN104508425A (en) | Hand-held distance-measuring device having an angle-determining unit | |
| EP2788715B1 (en) | Robotic leveling | |
| CN101464163A (en) | Straightness detecting method for platform normal point used for total station instrument check | |
| CN110411479B (en) | Digital calibration system of laser plumb aligner and application | |
| JP2020020747A (en) | Laser scanner system | |
| CN114858190A (en) | Device for detecting horizontal precision of measuring instrument | |
| CN112611398A (en) | Apparatus and method for calibrating a laser scanner | |
| CN214224151U (en) | Device for calibrating laser swinger | |
| CN112611396B (en) | Method for calibrating a laser scanner | |
| CN111895981A (en) | Floor plate paying-off equipment and laser paying-off method | |
| CN217483546U (en) | Device for determining horizontal accuracy of measuring instrument | |
| CN214224152U (en) | System for calibrating laser swinger | |
| CN220670450U (en) | Measuring device and measuring system for detecting rotational return difference | |
| CN215909823U (en) | Novel laser concentric adjusting device | |
| CN112611397A (en) | System for calibrating laser swinger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |