CN107339923B - Measuring ruler and measuring method - Google Patents
Measuring ruler and measuring method Download PDFInfo
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- CN107339923B CN107339923B CN201710711743.3A CN201710711743A CN107339923B CN 107339923 B CN107339923 B CN 107339923B CN 201710711743 A CN201710711743 A CN 201710711743A CN 107339923 B CN107339923 B CN 107339923B
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- 238000000034 method Methods 0.000 title claims description 25
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 12
- 238000000691 measurement method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/02—Rulers with scales or marks for direct reading
- G01B3/04—Rulers with scales or marks for direct reading rigid
- G01B3/06—Rulers with scales or marks for direct reading rigid folding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C2009/182—Measuring inclination, e.g. by clinometers, by levels by using liquids conductive
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to the technical field of engineering measurement, in particular to a measuring scale. The measuring ruler comprises a first ruler body, a second ruler body, a hinge piece, an inclination angle sensor, a display device and a processor. The first ruler body and the second ruler body are hinged through the hinge piece so as to realize folding or unfolding, the inclination sensor, the display device and the processor are arranged on the first ruler body, the display surface of the display device faces away from the first ruler body, and the inclination sensor and the display device are respectively and electrically connected with the processor. The inclination sensor is used for measuring an included angle value between the building surface and the reference surface when the first ruler body and the second ruler body are attached to the building surface, and the processor is used for calculating an error value between the building surface and the building reference surface according to the included angle value and the length of the first ruler body and/or the length of the second ruler body and displaying the error value through the display device. The measuring ruler is high in measuring accuracy.
Description
Technical Field
The invention relates to the technical field of engineering measurement, in particular to a measuring ruler and a measuring method.
Background
In the prior art, the measuring ruler adopts the gravity principle, drives the pointer by swinging of the pendulous pendulum, uniformly sets scales in the corresponding swinging range to represent the deviation range, and indicates the scale where the pointer stops, namely the deviation value of the measuring surface and the standard vertical surface. The structure of the existing measuring ruler is mechanical, and is particularly easy to influence the measuring result due to the influence of external force, such as collision, magnetic field and the like. In addition, the existing measuring ruler determines a measuring result by indicating a scale value through a pointer, and the marking of the scale line is influenced by a measuring range and a visual line width, so that the marking cannot be thinned too much, an estimated value exists in reading, and certain deviation can be caused due to different visual angles in reading.
Disclosure of Invention
Accordingly, an objective of the present invention is to provide a measuring ruler and a measuring method for solving the above problems.
The embodiment of the invention provides a measuring ruler, which comprises a first ruler body, a second ruler body, a hinge piece, an inclination angle sensor, a display device and a processor, wherein the first ruler body is provided with a first measuring surface;
the first ruler body and the second ruler body are hinged through the hinge piece so as to realize folding or unfolding, the inclination sensor, the display device and the processor are arranged on the first ruler body, the display surface of the display device faces away from the first ruler body, and the inclination sensor and the display device are respectively and electrically connected with the processor;
the inclination sensor is used for measuring an included angle value between the building surface and the reference surface when the first ruler body and the second ruler body are attached to the building surface, and the processor is used for calculating an error value between the building surface and the building reference surface according to the included angle value and the length of the first ruler body and/or the length of the second ruler body and displaying the error value through the display device.
Further, the measuring ruler further comprises a voice broadcasting device, the voice broadcasting device is arranged on the first ruler body and is electrically connected with the processor, and the voice broadcasting device is used for broadcasting an error value between the building surface and the building reference surface.
Further, the hinge member includes a connection shaft, and a first hinge portion and a second hinge portion rotatably connected to the connection shaft, the first hinge portion being connected to one end of the first rule body, and the second hinge portion being connected to one end of the second rule body.
Further, the first ruler body is of a hollow cavity structure, the second ruler body is of a hollow cavity structure, the first hinge portion is arranged inside the hollow cavity of the first ruler body, and the second hinge portion is arranged inside the hollow cavity of the second ruler body.
Further, the measuring scale further comprises a first end cover and a second end cover, wherein the first end cover is arranged at one end of the first scale body far away from the hinge piece, and the second end cover is arranged at one end of the second scale body far away from the hinge piece.
Further, the measuring scale further comprises a positioning device, the positioning device comprises a positioning pin and a positioning sheet, the positioning pin is arranged on the first scale body and is close to the hinge piece, the positioning sheet is rotatably arranged on the second scale body and is close to the hinge piece, and the positioning sheet can be locked on the positioning pin or separated from the positioning pin through rotation.
Further, the measuring scale further comprises a handle, wherein the handle is arranged on the first scale body and/or the second scale body.
Further, the measuring ruler further comprises a control keyboard, wherein the control keyboard is arranged on the first ruler body, is close to the display device and is electrically connected with the processor.
The embodiment of the invention also provides a measuring method which is applied to the measuring ruler, and the method comprises the following steps:
the inclination sensor is used for measuring an included angle value between the building surface and the reference surface when the first ruler body and the second ruler body are attached to the building surface;
and the processor calculates an error value between the building surface and the building reference surface according to the included angle value, the length of the first ruler body and/or the length of the second ruler body, and displays the error value through the display device.
Further, the step of calculating the error length value of the building surface by the processor according to the included angle value, the length of the first ruler body and/or the length of the second ruler body includes:
and the processor calculates an error value between the building surface and the building reference surface through a trigonometric function relation according to the included angle value, the length of the first ruler body and/or the length of the second ruler body.
According to the measuring ruler and the measuring method, the inclination sensor, the display device and the processor are arranged on the first ruler body, wherein the inclination sensor is used for measuring the included angle value between the building surface and the reference surface when the first ruler body and the second ruler body are attached to the building surface, and the processor is used for calculating the error value between the building surface and the building reference surface according to the included angle value and the length of the first ruler body and/or the length of the second ruler body and displaying the error value through the display device. Compared with the prior art, the measuring ruler and the measuring method provided by the embodiment of the invention have the advantages that the measuring accuracy is high, the measuring result is directly digitized, the reading by a user is facilitated, the reading error is reduced, and the measuring accuracy is further enhanced.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described. It is to be understood that the following drawings illustrate only certain embodiments of the invention and are therefore not to be considered limiting of its scope, for the person of ordinary skill in the art may admit to other equally relevant drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a first state of a measuring scale according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second state of the measuring scale according to the embodiment of the present invention.
Fig. 3 is a schematic structural view of a third state of the measuring scale according to the embodiment of the present invention.
Fig. 4 is a schematic block diagram of a measuring scale according to an embodiment of the present invention.
Fig. 5 is an assembly schematic diagram of a measuring scale according to an embodiment of the invention.
Fig. 6 is a schematic structural view of a hinge according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a hinge of a first rule body and a second rule body of the measuring rule according to an embodiment of the present invention.
Fig. 8 is an auxiliary explanatory diagram of a measuring method of a measuring scale according to an embodiment of the present invention.
Fig. 9 is another auxiliary explanatory diagram of the measuring method of the measuring scale according to the embodiment of the invention.
Fig. 10 is a flowchart of a measurement method according to an embodiment of the present invention.
Icon: 10-measuring ruler; 100-a first ruler body; 200-a second ruler body; 300-hinge; 310-connecting shaft; 320-a first hinge; 321-a connection; 322-a first mounting portion; 323-a second mounting portion; 324-reinforcement; 330-a second hinge; 400-tilt sensor; 500-a display device; 600-processor; 700-positioning device; 710-locating pins; 720-locating pieces; 800-handle; 900-a first end cap; 1000-a second end cap; 1100-voice broadcasting device; 1200-control keypad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Referring to fig. 1-4, an embodiment of the present invention provides a measuring scale 10, which includes a first scale body 100, a second scale body 200, a hinge 300, an inclination sensor 400, a display device 500, and a processor 600.
The first ruler body 100 and the second ruler body 200 are hinged through the hinge 300 to achieve folding or unfolding, the inclination sensor 400, the display device 500 and the processor 600 are disposed on the first ruler body 100, the display surface of the display device 500 faces away from the first ruler body 100, and the inclination sensor 400 and the display device 500 are respectively and electrically connected with the processor 600.
The tilt sensor 400 is used for measuring the angle between the building surface and the reference surface when the first and second rule bodies 100 and 200 are attached to the building surface. The processor 600 is configured to calculate an error value between the building surface and the building reference surface according to the included angle value and the length of the first ruler 100 and/or the length of the second ruler 200, and display the error value through the display device 500.
The reference plane may be a horizontal plane or a vertical plane, depending on the specific design of the tilt sensor 400. In this embodiment, the reference plane is a horizontal plane. The building reference surface can be a vertical surface or a horizontal surface, and the building reference surface can be specific according to the type of the building surface. In this embodiment, the building surface may be a wall surface or a ground surface, and when the building surface is a wall surface, the building reference surface is a vertical surface, and when the building surface is a ground surface, the building reference surface is a horizontal surface.
Optionally, in this embodiment, the processor 600 may further determine a type of the building surface measured by the measuring scale 10 according to an angle value between the building surface and the reference surface, so as to select a corresponding operation rule according to the type of the building surface, and calculate an error value between the building surface and the reference surface. In this embodiment, when the processor 600 determines that the included angle value is within the threshold range, for example, determines that the included angle value is within a first preset threshold range, determines that the measured building surface is a wall surface, selects a first operation rule, calculates an error value between the wall surface and a building reference surface, and when the processor 600 determines that the included angle value is within the threshold range, for example, determines that the measured building surface is a ground surface, determines that the included angle value is within a second preset threshold range, selects a second operation rule, and calculates an error value between the ground surface and the building reference surface. In this embodiment, the first preset threshold range may be 85 ° to 90 °, and the second preset threshold range may be 0 ° to 5 °. In addition, it should be noted that, in this embodiment, specific values of the first preset threshold range and the second preset threshold range are not particularly limited.
In this embodiment, the processor 600 may be further configured to calculate an included angle between the building surface and the building reference surface according to the included angle value between the building surface and the reference surface, and display the calculated included angle through the display device 500. It will be appreciated that, optionally, in this embodiment, the display device 500 is further configured to display an inclination direction of the building surface with respect to the building reference surface.
In order to reduce the manufacturing cost, in this embodiment, the first rule 100 and the second rule 200 may be two rule bodies with the same structure. In this embodiment, the first rule 100 and the second rule 200 may have a lamellar shape or a hollow cavity structure. Further, in this embodiment, the first rule 100 and the second rule 200 are hollow structures, and the cross sections of the first rule 100 and the second rule 200 are rectangular, that is, the cavities are rectangular cavities. In addition, in the present embodiment, the length of the first rule 100 and the length of the second rule 200 are one meter. It is to be understood that, in this embodiment, the length of the first rule 100 and the length of the second rule 200 may be other, and the length of the first rule 100 and the length of the second rule 200 may be set to different values.
Referring to fig. 5 and 6, alternatively, in the present embodiment, the hinge 300 includes a connection shaft 310, and a first hinge portion 320 and a second hinge portion 330 rotatably connected to the connection shaft 310, wherein the first hinge portion 320 is connected to one end of the first rule 100, and the second hinge portion 330 is connected to one end of the second rule 200.
In this embodiment, the first hinge 320 includes a connection portion 321, and a first mounting portion 322 and a second mounting portion 323 connected to the connection portion 321, where a space exists between the first mounting portion 322 and the second mounting portion 323. The connecting portion 321 is provided with a through hole, and the connecting portion 321 can be sleeved on the connecting shaft 310 through the through hole. In addition, in order to enhance the structural strength of the first hinge part 320, optionally, in this embodiment, the first hinge part 320 further includes a reinforcement member 324, and one end of the reinforcement member 324 is connected to the first mounting part 322, and the other end is connected to the second mounting part 323. In this embodiment, the second hinge 330 has the same structure as the first hinge 320, and will not be described herein.
The first hinge portion 320 is disposed inside the hollow cavity of the first rule body 100 and is connected to the first rule body 100 through a detachable connection member such as a screw or a bolt, and the second hinge portion 330 is disposed inside the hollow cavity of the second rule body 200 and is also connected to the second rule body 200 through a detachable connection member such as a screw or a bolt.
In this embodiment, the materials for manufacturing the first rule body 100, the second rule body 200 and the hinge 300 may be stainless steel materials or metal materials such as aluminum alloy, which is not particularly limited in this embodiment.
The tilt sensor 400 may be a solid state sensor, for example, a SCA100T-D01/D02VTI tilt sensor chip, or a MMA7361LCR1 tilt sensor chip. The tilt sensor 400 may also be an electrolyte sensor. The display device 500 may be an LCD liquid crystal display or an LED display. The processor 600 may be an integrated circuit chip with signal processing capabilities. The processor 600 may also be a general purpose processor, and the processor 600 may also be an Application Specific Integrated Circuit (ASIC), a discrete gate or transistor logic device, a discrete hardware component. The processor 600 may implement or execute the disclosed block diagrams in embodiments of the invention. Further, the general purpose processor may be a Microprocessor (MCU) or any conventional controller or the like.
Referring to fig. 7, in order to enhance the convenience of using the measuring scale 10, optionally, in this embodiment, the measuring scale 10 further includes a positioning device 700, the positioning device 700 includes a positioning pin 710 and a positioning piece 720, the positioning pin 710 is disposed at a position of the first scale body 100 near the hinge 300, and the positioning piece 720 is rotatably disposed at a position of the second scale body 200 near the hinge 300, and can be locked to the positioning pin 710 or disengaged from the positioning pin 710 by rotation. Alternatively, in this embodiment, the positioning piece 720 may also be disposed on the second rule body 200 through the positioning pin 710, and only the positioning piece 720 may be rotationally locked to the positioning pin 710 or disengaged from the positioning pin 710 relative to the second rule body 200.
To further enhance the convenience of use of the measuring scale 10, optionally, in this embodiment, the measuring scale 10 further includes a handle 800, where the handle 800 is disposed on the first scale body 100 and/or the second scale body 200. Specifically, in this embodiment, the handles 800 include two handles and are respectively disposed on the first rule 100 and the second rule 200.
To ensure that the measuring scale 10 has an attractive appearance, in this embodiment, the measuring scale 10 further includes a first end cap 900 and a second end cap 1000, where the first end cap 900 covers an end of the first scale body 100 away from the hinge 300, and the second end cap 1000 covers an end of the second scale body 200 away from the hinge 300.
Optionally, in this embodiment, the measuring scale 10 further includes a voice broadcasting device 1100, where the voice broadcasting device 1100 is disposed on the first scale body 100 and is electrically connected to the processor 600. The voice broadcasting device 1100 is configured to broadcast an error value between the building surface and the building reference surface. Thus, when the error value is measured, the user can directly obtain the error value through the voice broadcasting device 1100 without reading the error value through the display device 500, so as to further improve the working efficiency.
In the use process of the measuring scale 10, a user may choose to fold the measuring scale 10 according to actual requirements, that is, make the measuring scale 10 work in a one-meter measuring state, or unfold the measuring scale 10 to measure, that is, make the measuring scale 10 work in a two-meter measuring state. The measuring method of the measuring scale 10 will be described below taking an example in which the measuring scale 10 is operated in a two-meter measuring state and is used for measuring an error value between a wall surface and a building reference surface. When the building surface is a wall surface, the building reference surface is a vertical surface.
The user expands the rule body, locks in through the locating plate 720 the locating pin 710, will expand first rule body 100 with the second rule body 200 laminate in the wall, and perpendicular to corner line is measured, makes the inclination sensor 400 measures the contained angle value of wall and reference surface, the processor 600 is according to contained angle value, and the length of first rule body 100 with the length of second rule body 200 calculates the error value between the building surface with the building reference surface, and through display device 500 shows, through the voice broadcast device 1100 broadcast.
Specifically, after the inclination sensor 400 measures the angle value between the building surface and the reference surface, the processor 600 determines that the angle value is in the first preset threshold range of 85 ° to 90 °, and selects a first operation rule to calculate an error value between the wall surface and the building reference surface when determining that the building surface is a wall surface. Fig. 8 is an auxiliary explanatory diagram of a measuring method of the measuring scale 10 for measuring an error value between the wall surface and the building reference surface when the inclination direction of the wall surface is a first preset direction and a second preset direction, respectively, wherein the first preset direction and the second preset direction are opposite directions. Referring to fig. 8, for example, the inclination sensor 400 measures an angle α between the wall surface and the reference surface, the processor 600 determines that the angle α is in a first preset threshold range of 85 ° to 90 °, the length of the first rule 100 is L1, and the length of the second rule 200 is L2, so that an error value between the wall surface and the building reference surface is:
△1＝(L1+L2)*cosα
at this time, the included angle between the building surface and the building reference surface is as follows:
β＝90°-α
it can be understood that, in this embodiment, Δ1= (l1+l2) ×cos α is the first operation rule.
Alternatively, in this embodiment, the error value between the building surface and the building reference surface may be calculated according to the included angle between the building surface and the building reference surface, and the length of the first ruler body 100 and the length of the second ruler body 200, that is:
△1＝(L1+L2)*sinβ
in this embodiment, the measuring scale 10 may also be used to measure an error value between the ground and the building reference surface. The measuring method of the measuring scale 10 will be described below taking an example in which the measuring scale 10 is operated in a two-meter measuring state and is used for measuring an error value between the ground and a building reference plane. It will be appreciated that in this embodiment, when the building surface is the ground, the building datum surface is a horizontal surface.
The user expands the rule body and locks the rule body on the positioning pin 710 through the positioning piece 720, and attaches the first rule body 100 and the second rule body 200 which are expanded to the ground for measurement, so that the inclination sensor 400 measures the included angle value between the ground and the reference surface, and the processor 600 calculates the error value between the building surface and the building reference surface according to the included angle value, the length of the first rule body 100 and the length of the second rule body 200, and displays the error value through the display device 500, and broadcasts the error value through the voice broadcasting device 1100.
Specifically, after the inclination sensor 400 measures the angle value between the building surface and the reference surface, the processor 600 determines that the angle value is within the first preset threshold range of 0 ° to 5 °, and selects a second operation rule to calculate an error value between the ground and the building reference surface when determining that the building surface is the ground. Fig. 9 is an auxiliary explanatory diagram of a measurement method of the measuring scale 10 for measuring the error value between the ground and the building reference surface when the inclination direction of the ground is a third preset direction and a fourth preset direction, respectively, the third preset direction and the fourth preset direction being opposite directions. Referring to fig. 9, for example, the inclination sensor 400 measures an angle α between the ground and the reference plane, the processor 600 determines that the angle α is within a second preset threshold range of 0 ° to 5 °, the length of the first rule 100 is L1, and the length of the second rule 200 is L2, so that an error value between the ground and the building reference plane is:
△1＝(L1+L2)*sinα
at this time, the included angle between the building surface and the building reference surface is an included angle value alpha.
It can be understood that, in this embodiment, Δ1= (l1+l2) ×sin α is the second operation rule.
In this embodiment, the measuring scale 10 further includes a control keyboard 1200, where the control keyboard 1200 is disposed on the first scale body 100, is close to the display device 500, and is electrically connected to the processor 600. The user can switch the working states of the measuring scale 10, including the switching between the on/off state, the one meter measurement state and the two meter measurement state, through the control keyboard 1200.
Referring to fig. 10, the embodiment of the present invention further provides a measuring method applied to the measuring scale 10, where the method includes:
in step S100, the inclination sensor 400 measures the angle between the building surface and the reference surface when the first and second rule bodies 100 and 200 are attached to the building surface.
The reference plane may be a horizontal plane or a vertical plane, depending on the specific design of the tilt sensor 400. In this embodiment, the reference plane is a horizontal plane.
In step S200, the processor 600 calculates an error value between the building surface and the building reference surface according to the included angle value and the length of the first rule 100 and/or the length of the second rule 200, and displays the error value through the display device 500.
Specifically, in this embodiment, the processor 600 may calculate the error value between the building surface and the building reference surface according to the included angle value, and the length of the first rule 100 and/or the length of the second rule 200 through a trigonometric function relationship.
The building reference surface can be a vertical surface or a horizontal surface, and the building reference surface can be specific according to the type of the building surface. In this embodiment, the building surface may be a wall surface or a ground surface, and when the building surface is a wall surface, the building reference surface is a vertical surface, and when the building surface is a ground surface, the building reference surface is a horizontal surface.
In the use process of the measuring scale 10, a user may choose to fold the measuring scale 10 according to actual requirements, that is, make the measuring scale 10 work in a one-meter measuring state, or unfold the measuring scale 10 to measure, that is, make the measuring scale 10 work in a two-meter measuring state. The measuring method of the measuring scale 10 will be described below taking an example in which the measuring scale 10 is operated in a two-meter measuring state and is used for measuring an error value between a wall surface and a building reference surface. When the building surface is a wall surface, the building reference surface is a vertical surface.
The user expands the rule body, locks in through the locating plate 720 the locating pin 710, will expand first rule body 100 with the second rule body 200 laminate in the wall, and perpendicular to corner line is measured, makes the inclination sensor 400 measures the contained angle value of wall and reference surface, the processor 600 is according to contained angle value, and the length of first rule body 100 with the length of second rule body 200 calculates the error value between the building surface with the building reference surface, and through display device 500 shows, through the voice broadcast device 1100 broadcast.
Specifically, after the inclination sensor 400 measures the angle value between the building surface and the reference surface, the processor 600 determines that the angle value is in a first preset threshold range of 85 ° to 90 °, and selects a first operation rule corresponding to the first preset threshold range to calculate an error value between the wall surface and the building reference surface when it is determined that the building surface is a wall surface. It should be noted that, in this embodiment, specific values of the first preset threshold range are not specifically limited. Fig. 8 is an auxiliary explanatory diagram of a measuring method of the measuring scale 10 for measuring an error value between the wall surface and the building reference surface when the inclination direction of the wall surface is a first preset direction and a second preset direction, respectively, wherein the first preset direction and the second preset direction are opposite directions. Referring to fig. 8, for example, the inclination sensor 400 measures an angle α between the wall surface and the reference surface, the processor 600 determines that the angle α is in a first preset threshold range of 85 ° to 90 °, the length of the first rule 100 is L1, and the length of the second rule 200 is L2, so that an error value between the wall surface and the building reference surface is:
△1＝(L1+L2)*cosα
at this time, the included angle between the building surface and the building reference surface is as follows:
β＝90°-α
it can be understood that, in this embodiment, Δ1= (l1+l2) ×cos α is the first operation rule.
Alternatively, in this embodiment, the error value between the building surface and the building reference surface may be calculated according to the included angle between the building surface and the building reference surface, and the length of the first ruler body 100 and the length of the second ruler body 200, that is:
△1＝(L1+L2)*sinβ
in this embodiment, the measuring scale 10 may also be used to measure an error value between the ground and the building reference surface. The measuring method of the measuring scale 10 will be described below taking an example in which the measuring scale 10 is operated in a two-meter measuring state and is used for measuring an error value between the ground and a building reference plane. It will be appreciated that in this embodiment, when the building surface is the ground, the building datum surface is a horizontal surface.
The user expands the rule body and locks the rule body on the positioning pin 710 through the positioning piece 720, and attaches the first rule body 100 and the second rule body 200 which are expanded to the ground for measurement, so that the inclination sensor 400 measures the included angle value between the ground and the reference surface, and the processor 600 calculates the error value between the building surface and the building reference surface according to the included angle value, the length of the first rule body 100 and the length of the second rule body 200, and displays the error value through the display device 500, and broadcasts the error value through the voice broadcasting device 1100.
Specifically, after the inclination sensor 400 measures the angle value between the building surface and the reference surface, the processor 600 determines that the angle value is within a first preset threshold range of 0 ° to 5 °, and selects a second operation rule corresponding to the second preset threshold range to calculate an error value between the ground and the building reference surface when determining that the building surface is the ground. It should be noted that, in this embodiment, specific values of the second preset threshold range are not specifically limited. Fig. 9 is an auxiliary explanatory diagram of a measurement method of the measuring scale 10 for measuring the error value between the ground and the building reference surface when the inclination direction of the ground is a third preset direction and a fourth preset direction, respectively, the third preset direction and the fourth preset direction being opposite directions. Referring to fig. 9, for example, the inclination sensor 400 measures an angle α between the ground and the reference plane, the processor 600 determines that the angle α is within a second preset threshold range of 0 ° to 5 °, the length of the first rule 100 is L1, and the length of the second rule 200 is L2, so that an error value between the ground and the building reference plane is:
△1＝(L1+L2)*sinα
at this time, the included angle between the building surface and the building reference surface is an included angle value alpha.
It can be understood that, in this embodiment, Δ1= (l1+l2) ×sin α is the second operation rule.
In summary, according to the measuring scale 10 and the measuring method provided by the embodiments of the present invention, the inclination sensor 400, the display device 500 and the processor 600 are disposed on the first scale body 100, wherein the inclination sensor 400 is used for measuring the angle value between the building surface and the building reference surface when the first scale body 100 and the second scale body 200 are attached to the building surface, and the processor 600 is used for calculating the error value between the building surface and the building reference surface according to the angle value and the length of the first scale body 100 and/or the length of the second scale body 200, and displaying the error value through the display device 500. Compared with the prior art, the measuring ruler 10 and the measuring method provided by the embodiment of the invention have the advantages that the measuring accuracy is high, the measuring result is directly digitized, the reading by a user is convenient, the reading error is reduced, and the measuring accuracy is further enhanced.
In the description of the present invention, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should also be noted that the azimuth or positional relationship indicated by the terms "inner" and "outer" and the like are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The measuring ruler is characterized by comprising a first ruler body, a second ruler body, a hinge piece, an inclination angle sensor, a display device and a processor;
the first ruler body and the second ruler body are hinged through the hinge piece so as to realize folding or unfolding, the inclination sensor, the display device and the processor are arranged on the first ruler body, the display surface of the display device faces away from the first ruler body, and the inclination sensor and the display device are respectively and electrically connected with the processor;
the inclination sensor is used for measuring an included angle value between the building surface and the reference surface when the first ruler body and the second ruler body are attached to the building surface, and the processor is used for calculating an error value between the building surface and the building reference surface according to the included angle value and the length of the first ruler body and/or the length of the second ruler body and displaying the error value through the display device;
the processor is configured to:
when the included angle value is in a first preset threshold range, judging that the building surface is a wall surface, selecting a first operation rule, and calculating an error value between the wall surface and a building reference surface;
when the included angle value is in a second preset threshold range, judging the building surface as the ground, selecting a second operation rule, and calculating an error value between the ground and a building reference surface;
the first operation rule includes: Δ1= (l1+l2) ×cos α, where L1 represents the length of the first rule, L2 represents the length of the second rule, α represents the value of the angle between the building surface and the reference surface, and Δ1 represents the error value;
the second operation rule includes: Δ1= (l1+l2) sin α.
2. The ruler of claim 1, further comprising a voice broadcasting device disposed on the first ruler body and electrically connected to the processor, wherein the voice broadcasting device is configured to broadcast an error value between the building surface and the building reference surface.
3. The measuring scale of claim 1, wherein the articulation comprises a connecting shaft, and a first articulation rotatably coupled to the connecting shaft and a second articulation rotatably coupled to one end of the first scale body and to one end of the second scale body.
4. A measuring scale according to claim 3, wherein the first scale body is of hollow cavity structure, the second scale body is of hollow cavity structure, the first hinge portion is disposed inside the hollow cavity of the first scale body, and the second hinge portion is disposed inside the hollow cavity of the second scale body.
5. The measuring scale of claim 4, further comprising a first end cap disposed at an end of the first scale body remote from the articulation member and a second end cap disposed at an end of the second scale body remote from the articulation member.
6. A measuring scale according to claim 3, further comprising a locating means comprising a locating pin and a locating tab, the locating pin being provided in the first scale body at a position adjacent the hinge, the locating tab being rotatably provided in the second scale body at a position adjacent the hinge and being lockable to or disengageable from the locating pin by rotation.
7. The measuring scale of claim 1, further comprising a handle disposed on the first scale body and/or the second scale body.
8. The measuring scale of claim 1, further comprising a control keyboard disposed on the first scale body and proximate to the display device and electrically connected to the processor.
9. A measuring method, applied to the measuring scale of any one of claims 1 to 8, comprising:
the inclination sensor is used for measuring an included angle value between the building surface and the reference surface when the first ruler body and the second ruler body are attached to the building surface;
the processor calculates an error value between the building surface and the building reference surface according to the included angle value, the length of the first ruler body and/or the length of the second ruler body, and displays the error value through the display device;
the processor calculates an error value between the building surface and the building reference surface according to the included angle value and the length of the first ruler body and/or the length of the second ruler body, and the method comprises the following steps:
when the included angle value is in a first preset threshold range, judging that the building surface is a wall surface, selecting a first operation rule, and calculating an error value between the wall surface and a building reference surface;
when the included angle value is in a second preset threshold range, judging the building surface as the ground, selecting a second operation rule, and calculating an error value between the ground and a building reference surface;
the first operation rule includes: Δ1= (l1+l2) ×cos α, where L1 represents the length of the first rule, L2 represents the length of the second rule, α represents the value of the angle between the building surface and the reference surface, and Δ1 represents the error value;
the second operation rule includes: Δ1= (l1+l2) sin α.
10. The method according to claim 9, wherein the step of calculating the error length value of the building surface by the processor based on the angle value and the length of the first rule and/or the length of the second rule comprises:
and the processor calculates an error value between the building surface and the building reference surface through a trigonometric function relation according to the included angle value, the length of the first ruler body and/or the length of the second ruler body.
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| EP3650803B1 (en) | 2018-11-12 | 2021-04-14 | Hexagon Technology Center GmbH | Distance measuring system and associated measuring methods |
| CN111765872A (en) * | 2020-06-09 | 2020-10-13 | 中国建筑一局(集团)有限公司 | Multifunctional digital measuring scale |
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