CN113124818A - Line casting device - Google Patents
Line casting device Download PDFInfo
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- CN113124818A CN113124818A CN202110559465.0A CN202110559465A CN113124818A CN 113124818 A CN113124818 A CN 113124818A CN 202110559465 A CN202110559465 A CN 202110559465A CN 113124818 A CN113124818 A CN 113124818A
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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
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The present disclosure relates to a lining device, comprising: a distance measuring unit configured to measure a linear distance between the line projection device and a measurement point of the projection plane; the line projection unit is used for projecting a first laser line with scales on a projection plane, wherein the distance between two adjacent scales on the first laser line is a first scale interval; and the calculating unit is in communication connection with the distance measuring unit, wherein a first ratio between the linear distance and the first scale interval is fixed or an angle of a vertex angle of a right triangle formed by two adjacent scales and the laser emitting port of the distance measuring unit is fixed, the first ratio or the angle of the vertex angle is associated with the structure of the line casting device, and the calculating unit is configured to calculate the first scale interval according to the linear distance and one of the first ratio and the vertex angle.
Description
Technical Field
The present disclosure relates to a demarcation device, and more particularly, to a demarcation device capable of calculating a scale interval of a scale on a laser line projected by a demarcation unit by means of a distance measured by a distance measuring unit included in the demarcation device.
Background
In some existing line level instrument products on the market at present, some line level instrument products are added with a distance measuring function, and some line level instrument products are added with a line throwing function with scales. However, these level products have either only a line-casting function or only a linear distance between the line-casting device and the plane to be cast can be measured, and cannot measure the distance of the interval in the horizontal direction.
Disclosure of Invention
The inventor of the present disclosure has innovatively conceived to measure the size of the pitch of the graduation marks on the laser line projected by the line projector by means of a distance measuring unit included in the line projection device, based on an understanding of the prior art.
Specifically, the present disclosure proposes a routing device comprising:
a distance measuring unit configured to measure a linear distance between the line casting device and a measurement point of a projection plane;
the laser line dividing unit is used for dividing the first laser line into a plurality of scales, and dividing the first laser line into a plurality of scales; and
a calculating unit, which is connected with the distance measuring unit in a communication way, wherein a first ratio between the linear distance and the first scale interval is fixed or an angle of a vertex angle of a right triangle formed by two adjacent scales and a laser emitting port of the distance measuring unit is fixed, the first ratio or the angle of the vertex angle is associated with the structure of the line-casting device, and the calculating unit is configured to calculate the first scale interval according to the linear distance and one of the first ratio and the vertex angle.
In this way, with the aid of the lining device proposed by the present disclosure, since the first ratio between the linear distance (i.e. the distance between the lining device and the projection plane) and the first scale pitch is fixed, or since the angle of the vertex angle of a right triangle formed by two adjacent scales and the laser emission port of the distance measuring unit is fixed, and the first ratio or the angle of the vertex angle is associated with the structure of the lining device, the calculation unit comprised by the lining device can be configured to calculate the first scale pitch from the linear distance, so that the distance measuring unit comprised by the lining device can indirectly not only measure the linear distance between the lining device and the projection plane, but also convert the distance between two adjacent scales or a plurality of scales on the projection plane based on this linear distance, this will advantageously extend the functionality and application scenarios of the line-casting device.
In order to make a first ratio between the linear distance (i.e. the distance between the line projector and the projection plane) and the first scale interval be fixed, or to make an angle of a vertex angle of a right triangle formed by two adjacent scales and the laser emitting port of the distance measuring unit be fixed, in an embodiment according to the present disclosure, the distances between two adjacent scales on the first laser line are equal. In this way, the angle of the vertex angle of the right triangle formed between the equally spaced graduation lines and the light source can be fixed, so that the accuracy of subsequent ranging can be ensured.
In an embodiment according to the disclosure, the line projection unit is further configured to project a second laser line with scales on the projection plane, wherein a distance between two adjacent scales on the second laser line is a second scale interval, and wherein the calculation unit is further configured to calculate the second scale interval from the linear distance, wherein a second ratio between the linear distance and the second scale interval is fixed and the second ratio is associated with a structure of the line projection device. In this way the demarcation device disclosed in accordance with the present disclosure is enabled to measure not only the scale separation in one direction, but also the scale separation in two directions.
Preferably, in one embodiment according to the present disclosure, the first laser line and the second laser line are perpendicular to each other.
In one embodiment according to the present disclosure, the routing device further includes:
a housing configured to receive and secure the routing unit and/or the ranging unit.
In one embodiment according to the disclosure, the computing unit is configured as a portable device, wherein the portable device is configured for communicative connection with the ranging unit via a wireless communication protocol.
In one embodiment according to the present disclosure, the wireless communication protocol includes any one of a bluetooth communication protocol, a WiFi communication protocol, a ZigBee communication protocol, and an infrared communication protocol.
In one embodiment according to the present disclosure, the routing device further includes:
a display module configured to display the first scale spacing.
In one embodiment according to the present disclosure, the routing device further includes:
a housing configured to receive and secure the routing unit, the ranging unit, and/or the computing unit.
In one embodiment according to the present disclosure, the linear distance is a perpendicular distance from the ranging unit to the projection plane.
In one embodiment according to the present disclosure, the ranging unit includes:
a laser emitting unit; and
a laser receiving unit for receiving the laser beam,
wherein the distance measuring device is configured to receive laser light reflected by the laser light emitted by the laser light emitting unit on a projection plane by means of the laser light receiving unit and to calculate the linear distance therefrom.
In summary, with the adoption of the line-marking device provided by the disclosure, since the first ratio between the linear distance (i.e. the distance between the line-marking device and the projection plane) and the first scale interval is fixed, or since the angle of the vertex angle of a right triangle formed by two adjacent scales and the laser emission port of the distance-measuring unit is fixed, and the first ratio or the angle of the vertex angle is associated with the structure of the line-marking device, the calculating unit included in the line-marking device can be configured to calculate the first scale interval according to the linear distance, so that the distance-measuring unit included in the line-marking device can indirectly measure not only the linear distance between the line-marking device and the projection plane, but also the distance between two adjacent scales or a plurality of scales on the projection plane can be converted based on the linear distance, this will advantageously extend the functionality and application scenarios of the line-casting device.
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.
FIG. 1 illustrates an application scenario 100 where a line-casting device 110 projects a laser line in accordance with the present disclosure;
FIG. 2 illustrates an application scenario 200 when two laser lines are projected by the line projector 210 according to the present disclosure; and
FIG. 3 illustrates another application scenario 300 when two laser lines are projected by the line projector 310 disclosed in accordance with the present disclosure.
Other features, characteristics, advantages and benefits of the present disclosure will become more apparent from the following detailed description 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 disclosure can be practiced. The example embodiments are not intended to be exhaustive of all embodiments according to the disclosure. 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 disclosure. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present disclosure is defined by the appended claims.
The prior art has a technical problem that the prior art lining device cannot measure the distance between the graduation lines even though it may have a distance measuring unit and hit a laser line with graduation.
Fig. 1 illustrates an application scenario 100 when a line-casting device 110 projects a laser line according to the present disclosure. As can be seen in fig. 1, the present disclosure proposes a routing device 110, the routing device 110 comprising:
a distance measuring unit (in the figure, for example inside the line-casting device 110) configured to measure a linear distance L1 between the line-casting device 110 and a measurement point of the projection plane; the distance measuring unit may for example be a laser distance measuring unit.
A demarcation unit (illustrated, for example, within the demarcation device 110) configured to project a first laser line with a scale, for example, a horizontal laser line with a scale in fig. 1, on a projection plane, wherein a distance between two adjacent scales on the first laser line is a first scale interval D1, which is unknown when the demarcation device 110 is in use; and
a calculation unit (for example within the portable device inside or outside the line casting apparatus 110 in the figure) in communication with the distance measuring unit, wherein a first ratio between the linear distance L1 and the first scale distance D1 is fixed or an angle of a vertex angle θ 1 of a right triangle formed by two adjacent scales and the laser emitting port of the distance measuring unit is fixed, and the first ratio or the angle of the vertex angle θ 1 is associated with the structure of the line casting apparatus 110, and the calculation unit is configured to calculate the first scale distance D1 from the linear distance L1 and one of the first ratio and the vertex angle.
In this way, with the aid of the lining device 110 proposed by the present disclosure, since the first ratio between the straight-line distance L1 (i.e. the distance between the lining device 110 and the projection plane) and the first scale interval D1 is fixed, or since the angle of the vertex angle θ 1 of a right triangle formed by two adjacent scales and the laser emitting port of the distance measuring unit is fixed, and the first ratio or the angle of the vertex angle θ 1 is associated with the structure of the lining device 110, i.e. the first ratio or the angle of the vertex angle θ 1 is fixed once the lining device 110 is configured to be shipped, the calculating unit included in the lining device 110 can be configured to calculate the first scale interval D1 according to the straight-line distance L1, so that the distance measuring unit included in the lining device 110 is indirectly enabled to not only measure the straight-line distance L1 between the lining device 110 and the projection plane, moreover, the graduation distance D1 between two adjacent graduations on the projection plane or the distance n × D1 between a plurality of (for example, n) graduations can be converted based on the straight-line distance L1, which advantageously expands the functions and application scenarios of the line projector 110.
In order to make the first ratio between the linear distance (i.e. the distance between the line projector 110 and the projection plane) and the first scale interval fixed, or to make the angle of the vertex angle of the right triangle formed by two adjacent scales and the laser emitting port of the distance measuring unit fixed, in one embodiment according to the present disclosure, the distances between two adjacent scales on the first laser line are equal. In this way, the angle of the vertex angle of the right triangle formed between the equally spaced graduation lines and the light source can be fixed, so that the accuracy of subsequent ranging can be ensured.
Specifically, for example, factory default configuration: the distance between L1 and D1 is known. If L1 is 1m, D1 is 0.1m, that is, the pitch ratio between the scale pitch D1 projected by the lining device 110 and the vertical distance L1 is K1/L1 0.1/1 or 0.1/10%. At this time, for example, the lining device 110 is pulled farther from the projection plane, and when the linear distance L between the lining device 110 and the wall projection plane, for example, a plane, changes, the scale interval can be converted from the measured vertical distance L' between the lining device 110 and the wall surface and a known proportional value. The graduation distance D ' in this case is equal to L ' × K, for example, L ' × 0.1. Wherein, L' is the result that the distance measuring unit can measure in real time. The change in size of the scale interval can be calculated. For example: when L ' is 2m, D ' is L ' K2 m x 0.1 is 0.2 m.
The demarcation device can measure the distance between two points of a known plane, for example, by arranging two scales right at the two points, namely, by coinciding the identification point with the two points of the known surface. It is also possible to calibrate points of known distance on the measured surface. If laser lines with a distance scale of 0.15m or 0.5m are projected in advance, etc., it can be known that the line projector needs to be placed at a position where the straight line distance is specifically, and the position can be prompted or guided by the display module. That is, the routing device 110 in accordance with the present disclosure can both measure and locate.
Fig. 2 illustrates an application scenario 200 when two laser lines are projected by the line projector 210 disclosed in accordance with the present disclosure. As can be seen from FIG. 2, the line projection unit can project not only a laser line with one scale, but also a laser line with another scale. In summary, in one embodiment according to the present disclosure, the line projection unit is further configured to project a second laser line with scales on the projection plane, wherein a distance between two adjacent scales on the second laser line is a second scale interval, and wherein the calculation unit is further configured to calculate the second scale interval according to the linear distance, wherein a second ratio between the linear distance and the second scale interval is fixed, and the second ratio is associated with a structure of the line projection device. In this way the demarcation device disclosed in accordance with the present disclosure is enabled to measure not only the scale separation in one direction, but also the scale separation in two directions. Preferably, in one embodiment according to the present disclosure, the first laser line and the second laser line are perpendicular to each other.
FIG. 3 illustrates another application scenario 300 when two laser lines are projected by the line projector 310 disclosed in accordance with the present disclosure. The difference with respect to fig. 2 is that in fig. 3, for example, the line marking device 310 can be located further from the projection plane, in which case, for example, the linear distance between the line marking device 310 and the projection plane is L3, and in which case the first graduation spacing D31 is scaled in comparison with the first graduation spacing D21 in fig. 2 by the ratio of the linear distance L3 in fig. 3 to the linear distance L2 in fig. 2, i.e., D31/D21 is L3/L2. Similarly, the scaling of the second scale spacing D32 to the second scale spacing D22 in fig. 2 is the ratio of the linear distance L3 in fig. 3 to the linear distance L2 in fig. 2, i.e., D32/D22 is L3/L2.
In one embodiment according to the present disclosure, the routing device further includes:
a housing configured to receive and secure the routing unit and/or the ranging unit. Preferably, in an embodiment according to the present disclosure, the computing unit is configured as a portable device, wherein the portable device is configured for communicative connection with the ranging unit via a wireless communication protocol. More preferably, in an embodiment according to the present disclosure, the wireless communication protocol includes any one of a bluetooth communication protocol, a WiFi communication protocol, a ZigBee communication protocol, and an infrared communication protocol. Further preferably, in an embodiment according to the present disclosure, the routing device further includes: a display module configured to display the first scale interval, the linear distance, and the like.
In one embodiment according to the present disclosure, the routing device further includes: a housing configured to receive and secure the routing unit, the ranging unit, and/or the computing unit. That is, the computing unit is included in the housing, that is, the routing device is designed as a single unit, and the entire functions of the routing device according to the present disclosure can be independently implemented without the aid of other external components.
Preferably, in an embodiment according to the present disclosure, the straight distance is a perpendicular distance of the ranging unit to the projection plane. Further preferably, in an embodiment according to the present disclosure, the ranging unit includes: a laser emitting unit; and a laser receiving unit, wherein the distance measuring device is configured to receive laser light reflected by the laser light emitted by the laser emitting unit on a projection plane by means of the laser receiving unit and to calculate the linear distance therefrom.
In summary, with the adoption of the line-marking device provided by the disclosure, since the first ratio between the linear distance (i.e. the distance between the line-marking device and the projection plane) and the first scale interval is fixed, or since the angle of the vertex angle of a right triangle formed by two adjacent scales and the laser emission port of the distance-measuring unit is fixed, and the first ratio or the angle of the vertex angle is associated with the structure of the line-marking device, the calculating unit included in the line-marking device can be configured to calculate the first scale interval according to the linear distance, so that the distance-measuring unit included in the line-marking device can indirectly measure not only the linear distance between the line-marking device and the projection plane, but also the distance between two adjacent scales or a plurality of scales on the projection plane can be converted based on the linear distance, this will advantageously extend the functionality and application scenarios of the line-casting device.
While various exemplary embodiments of the disclosure 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 disclosure without departing from the spirit and scope of the disclosure. 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. Further, the methods of the present disclosure may be implemented in either all software implementations using appropriate processor instructions or hybrid implementations using a combination of hardware logic and software logic to achieve the same result. Such modifications to the solution according to the disclosure are intended to be covered by the appended claims.
Claims (11)
1. A lining device, comprising:
a distance measuring unit configured to measure a linear distance between the line casting device and a measurement point of a projection plane;
the laser line dividing unit is used for dividing the first laser line into a plurality of scales, and dividing the first laser line into a plurality of scales; and
a calculating unit, which is connected with the distance measuring unit in a communication way, wherein a first ratio between the linear distance and the first scale interval is fixed or an angle of a vertex angle of a right triangle formed by two adjacent scales and a laser emitting port of the distance measuring unit is fixed, the first ratio or the angle of the vertex angle is associated with the structure of the line-casting device, and the calculating unit is configured to calculate the first scale interval according to the linear distance and one of the first ratio and the vertex angle.
2. The demarcation device of claim 1, wherein the distance between two adjacent markings on the first laser line is equal.
3. The demarcation device of claim 1, wherein the demarcation unit is further configured to project a second laser line with a scale on the projection plane, wherein a distance between two adjacent scales on the second laser line is a second scale pitch, and wherein the calculation unit is further configured to calculate the second scale pitch from the linear distance, wherein a second ratio between the linear distance and the second scale pitch is fixed and the second ratio is associated with a structure of the demarcation device.
4. The routing device of claim 3, wherein the first laser line and the second laser line are perpendicular to each other.
5. The routing device of claim 1, further comprising:
a housing configured to receive and secure the routing unit and/or the ranging unit.
6. The routing apparatus of claim 5, wherein the computing unit is configured as a portable device, wherein the portable device is configured for communicative connection with the ranging unit via a wireless communication protocol.
7. The demarcation device of claim 6, wherein the wireless communication protocol comprises any one of a Bluetooth communication protocol, a WiFi communication protocol, a ZigBee communication protocol, and an infrared communication protocol.
8. The routing device of any one of the preceding claims, further comprising:
a display module configured to display the first scale spacing.
9. The routing device of claim 1, further comprising:
a housing configured to receive and secure the routing unit, the ranging unit, and/or the computing unit.
10. The line-casting device of claim 1, wherein the linear distance is a perpendicular distance of the ranging unit to the projection plane.
11. The demarcation device of claim 1, wherein the ranging unit comprises:
a laser emitting unit; and
a laser receiving unit for receiving the laser beam,
wherein the distance measuring device is configured to receive laser light reflected by the laser light emitted by the laser light emitting unit on a projection plane by means of the laser light receiving unit and to calculate the linear distance therefrom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110559465.0A CN113124818A (en) | 2021-05-21 | 2021-05-21 | Line casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110559465.0A CN113124818A (en) | 2021-05-21 | 2021-05-21 | Line casting device |
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| CN113124818A true CN113124818A (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110559465.0A Pending CN113124818A (en) | 2021-05-21 | 2021-05-21 | Line casting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116592831A (en) * | 2023-07-17 | 2023-08-15 | 四川护邑科技有限公司 | Laser ranging device with laser marking function |
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| CN102203548A (en) * | 2008-11-07 | 2011-09-28 | 夏普株式会社 | Projection device, projection device control method, and projection device control program |
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