CN110595441B - Aiming device - Google Patents

Aiming device Download PDF

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Publication number
CN110595441B
CN110595441B CN201810607245.9A CN201810607245A CN110595441B CN 110595441 B CN110595441 B CN 110595441B CN 201810607245 A CN201810607245 A CN 201810607245A CN 110595441 B CN110595441 B CN 110595441B
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angle
sight
preset
reference line
sighting telescope
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CN110595441A (en
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温俊阳
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Hangzhou Hikmicro Sensing Technology Co Ltd
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Hangzhou Hikmicro Sensing Technology Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/46—Sighting devices for particular applications
    • F41G1/473—Sighting devices for particular applications for lead-indicating or range-finding, e.g. for use with rifles or shotguns
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
    • G01C11/02—Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
    • G01C11/025—Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures by scanning the object
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
    • G01C11/04—Interpretation of pictures

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention discloses an aiming device, and belongs to the field of aiming device application. The sight includes: the device comprises a display interface, an angle detection component and one or more processors, wherein the one or more processors are configured to execute an angle correction process on a first angle acquired by the angle detection component when a reference line is coincident with an upper boundary of an image of an object to be detected, and determine the corrected angle as an elevation angle of an aiming device; when the reference line is coincident with the lower boundary of the image of the object to be detected, executing an angle correction process on the first angle acquired by the angle detection assembly, and determining the corrected angle as the depression angle of the sighting device; and calculating the distance between the sighting telescope and the object to be measured based on the elevation angle and the depression angle. The angle correction process is executed on the first angle acquired by the angle detection assembly, so that the accuracy of the final measurement result is effectively improved.

Description

Aiming device
Technical Field
The invention relates to the field of sighting telescope application, in particular to a sighting telescope.
Background
In the fields of industrial measurement, structural engineering, military and the like, a sighting telescope is an important distance measuring tool. There are many different types of sights, such as common optical sights and thermal imaging sights. Among them, because the thermal imaging sight can use night, therefore the thermal imaging sight has more extensive application scene.
Generally, the thermal imaging sight is provided with a display interface and a measuring button, the display interface can display an image acquired by the thermal imaging sight, the image comprises an image of an object to be measured, and the measuring button is used for triggering the sight to measure the distance between the thermal imaging sight and the object to be measured. For example, when the sight is in a ranging state, the sight may display a reference line, the operator moves the sight so that the reference line coincides with an upper boundary of an image of the object to be measured, and presses a measurement button, which may trigger the sight to detect an elevation angle of the upper boundary of the object to be measured with respect to the sight based on a position of the reference line; similarly, the depression angle of the lower boundary of the object to be measured relative to the sight can be measured; and calculating a final pitch angle based on the elevation angle and the depression angle, so that the distance between the sighting telescope and the object to be measured can be calculated based on the pitch angle, and the calculated distance is displayed on the sighting telescope.
However, when a measuring button on the sight is manually pressed, the sight may shake, and a reference line displayed on the sight also shakes, so that an error of the sight measuring an included angle between the sight and an upper boundary and/or a lower boundary of an object to be measured is large, and an error of a final measuring result is large.
Disclosure of Invention
The application provides an aiming tool, which can solve the problem that the error of the measuring result of the existing aiming tool is large. The technical scheme is as follows:
the application provides an address tool, address tool includes:
the display interface is configured to display the reference line and an image of the object to be measured when the sighting device is in a ranging state;
an angle detection component configured to detect a first angle of the sight in a direction of gravity based on the reference line in real time while the sight is in a ranging state;
one or more processors configured to perform an angle correction process on the first angle acquired by the angle detection component when the reference line coincides with an upper boundary of the image of the object under test, determine a corrected angle as an elevation angle of the sight,
when the reference line is coincident with the lower boundary of the image of the object to be detected, executing an angle correction process on the first angle acquired by the angle detection component, determining the corrected angle as the depression angle of the sighting telescope,
calculating the distance between the sighting device and the object to be measured based on the elevation angle and the depression angle;
wherein the angle correction process comprises:
recording a plurality of first angles detected by the angle detection assembly after the sight in the ranging state reaches a preset recording triggering condition;
acquiring a maximum first angle and a minimum first angle in the plurality of first angles after a preset recording end condition is reached;
calculating an intermediate angle based on the largest first angle and the smallest first angle, the intermediate angle being the same as the largest first angle and the intermediate angle being the same as the smallest angle;
and determining the intermediate angle as an angle obtained after correcting the first angle acquired by the angle detection component.
Optionally, the preset recording triggering condition is: the length of time of the sight stagnation is greater than or equal to a first preset stagnation length of time.
Optionally, the preset recording end condition is: after the sighting telescope swings in the direction of the reference line, the stagnation time length is greater than or equal to a second preset stagnation time length.
Optionally, the preset recording end condition is: after the sighting telescope performs at least one reciprocating swing along the direction of the reference line, the stagnation time length is greater than or equal to the second preset stagnation time length.
Optionally, the preset recording end condition is: the sighting telescope swings to the first side and then returns to the initial position along the direction of the reference line, then swings to the second side and then returns to the initial position, and the stagnation time length of the sighting telescope at the initial position is greater than or equal to the second preset stagnation time length;
wherein the first side and the second side are one of a left side and a right side, respectively.
Optionally, the one or more processors are further configured to:
judging whether the angle variation of the sighting telescope in the gravity direction is within a first preset angle variation range or not;
and when the angle variation of the sighting telescope in the gravity direction is not within the first preset angle variation range, controlling the display interface to display alarm information for indicating measurement errors.
Optionally, the angle detection component is further configured to detect, in real time, a second angle of the sight in a direction perpendicular to gravity based on the reference line when the sight is in a ranging state;
the one or more processors further configured to:
judging whether the angle variation of the sighting telescope in the direction vertical to the gravity is within a second preset angle variation range or not;
and when the angle variation of the sighting telescope in the direction perpendicular to the gravity direction is not within a second preset angle variation range, the warning information is sent.
Optionally, the one or more processors are further configured to:
after the fact that the sighting device meets the preset recording triggering condition is detected, controlling the display interface to display prompt information for indicating that the sighting device meets the preset recording triggering condition;
and after the fact that the sight meets the preset recording end condition is detected, controlling the display interface to display prompt information for indicating that the sight meets the preset recording end condition.
Optionally, the sight is an observation-sight thermal imager.
Optionally, the angle sensing component is a gyroscope.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
when a reference line in the display interface is coincident with the upper boundary of the image of the object to be detected, the sighting telescope can measure the elevation angle of the sighting telescope and the upper boundary of the object to be detected; when the reference line in the display interface is coincident with the upper boundary of the image of the object to be measured, the sighting telescope can measure the depression angle of the sighting telescope and the lower boundary of the object to be measured. The elevation angle and the depression angle measured by the sighting telescope are obtained through correction in an angle correction process, and the corrected angle is closest to the angle detected by an angle detection assembly in the sighting telescope when a reference line is coincident with the upper boundary (or the lower boundary) of the image of the object to be measured, so that the error of measuring the angle through the sighting telescope is effectively reduced, and the final measuring result is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of measuring distance by sight;
fig. 2 is a schematic structural diagram of an aiming device according to an embodiment of the present invention;
FIG. 3 is a diagram showing the image effect of the target object;
fig. 4 is a flowchart of a ranging method according to an embodiment of the present invention;
FIG. 5 is an effect diagram of the coincidence of a reference line with the upper boundary of the image of the object under test;
FIG. 6 is an effect diagram of the coincidence of a reference line with the lower boundary of the image of the object under test;
FIG. 7 is a diagram illustrating the effect of the moving track range of the reference line according to an embodiment of the present invention;
fig. 8 is a flowchart of a method for using the sight according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic diagram of measuring a distance by an aiming device, and a distance L between the aiming device 01 and an object 02 to be measured can be calculated by a distance calculation formula, where the distance calculation formula is:
Figure BDA0001694629140000041
wherein h is the estimated height of the object 02 to be measured, and α is the pitch angle between the sight 01 and the object 02 to be measured.
According to the distance calculation formula, the height of the object 02 to be measured is estimated by an operator, so that the sighting telescope 01 can measure the distance between the sighting telescope 01 and the object 02 to be measured as long as the pitching angle between the sighting telescope 01 and the object 02 to be measured is measured.
However, in the existing sighting telescope, the measurement button on the sighting telescope is manually pressed to measure the elevation angle between the sighting telescope and the object to be measured, when the measurement button on the sighting telescope is manually pressed, the sighting telescope may shake, and a reference line displayed on the sighting telescope also shakes along with the measurement button, so that the error of the sighting telescope for measuring the elevation angle between the sighting telescope and the object to be measured is large, and the error of a final measurement result is large.
For example, according to an error transfer formula, it can be obtained that a distance error Δ L of a distance between the sight and the object to be measured satisfies:
Figure BDA0001694629140000042
wherein, the delta h is the estimated height error of the object to be measured; and the delta alpha is a pitch angle error between the sighting telescope and the object to be measured. The delta h is an error generated when the height of the object to be measured is estimated, and the size of the error is related to the experience of an operator and is inevitable; the Δ α is the error in the sight due to jitter. As can be seen from the above error transfer formula, the larger Δ α is, the larger the error of the distance between the sight and the object to be measured, which is finally measured, is. For example, referring to table 1, table 1 shows different distances corresponding to different pitch angles when the estimated height of the object to be measured is 1.8 m.
TABLE 1
Figure BDA0001694629140000051
As can be seen from table 1, when the measured pitch angle α is 1 °, the final measured distance L is 103.13 m; if the measured pitch angle α is 0.01 °, the final measured distance L is 103.13 m; if the measured pitch angle α is 0.001 °, the final measured distance L is 10313.2 m. It can be seen that the measurement of the pitch angle is directly related to the final measurement of the distance. In the related art, due to the existence of jitter, the error of the sighting telescope for measuring the pitch angle is large, so that the sighting telescope provided by the embodiment of the invention is used for reducing the measurement error of the pitch angle, and further improving the accuracy of distance measurement.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an aimer according to an embodiment of the present invention, where the aimer may include:
a display interface 10, an angle detection component 20, and one or more processors 30. The display interface 10 and the angle sensing assembly 20 are both electrically connected to the processor 30.
The display interface 10 is configured to display the reference line 11 and the image 12 of the object to be measured when the sight is in the ranging state. In the embodiment of the present invention, the sight may further include a lens 40, the display interface 10 may display an image acquired through the lens 40, the image may be a common optical image or an infrared image, and if the image is an infrared image, the sight is an observation thermal imager. The display interface 10 may be an imaging interface of the lens 40, or may be an interface on a display screen. When the sighting telescope is in a ranging state, the reference line 11 can be directly displayed on the display interface 10; after the operator moves the sight to aim the sight at the object to be measured, an image 12 of the object to be measured may be displayed on the display interface 10. It should be noted that when the sight is in the distance measuring state, the operator needs to input the estimated height of the object to be measured to the sight, for example, please refer to fig. 3, where fig. 3 is an image effect diagram of the sight displaying the object to be measured, the estimated height of the object to be measured may be 1.2 meters (m), and the display interface 10 of the sight may display the estimated height at the position a.
The angle detection assembly 20 is configured to detect a first angle of the sight in the direction of gravity based on the reference line 11 in real time while the sight is in the ranging state. Optionally, the angle sensing component may be a gyroscope. It should be noted that the sighting telescope has an internal reference coordinate system, the internal reference coordinate system is a three-dimensional coordinate system, the internal reference coordinate system has an x axis, a y axis and a z axis, and if the sighting telescope is horizontally placed, the z axis in the internal reference coordinate system is parallel to the gravity direction. The first angle of the sight in the gravity direction is an included angle between an optical axis of the sight (i.e., an optical axis of a lens in the sight) and a reference plane, and the reference plane is a plane formed by an x axis and a y axis when a z axis in an internal reference coordinate system is parallel to the gravity direction.
The one or more processors 30 are configured to perform the ranging method illustrated in fig. 4. Referring to fig. 4, fig. 4 is a flowchart of a ranging method according to an embodiment of the present invention, where the method includes:
step 401, when the reference line coincides with the upper boundary of the image of the object to be detected, an angle correction process is executed on the first angle acquired by the angle detection component, and the corrected angle is determined as the elevation angle of the aiming device.
In the embodiment of the present invention, when the sight is in the distance measuring state, please refer to fig. 5, where fig. 5 is an effect diagram of the reference line coinciding with the upper boundary of the image of the object to be measured, and the operator may move the sight so that the reference line 11 in the display interface 10 coincides with the upper boundary of the image 12 of the object to be measured. The one or more processors in the sight may perform an angle correction process on the first angle obtained by the angle detection component, and may determine the corrected angle as an elevation angle of the sight, that is, the corrected angle as an elevation angle of the sight and an upper boundary of the object to be measured.
And step 402, when the reference line is coincident with the lower boundary of the image of the object to be detected, executing an angle correction process on the first angle acquired by the angle detection assembly, and determining the corrected angle as the depression angle of the aiming tool.
After the elevation angle of the sight is obtained in step 401, please refer to fig. 6, where fig. 6 is an effect diagram of the coincidence of the reference line and the lower boundary of the image of the object to be measured, and similarly, the operator may move the sight so that the reference line 11 in the display interface 10 coincides with the lower boundary of the image 12 of the object to be measured. The one or more processors in the sight may perform an angle correction process on the first angle obtained by the angle detection component, and may determine the corrected angle as a depression angle of the sight, that is, determine the corrected angle as a depression angle of the sight and a lower boundary of the object to be measured.
And 403, calculating the distance between the sighting telescope and the object to be measured based on the elevation angle and the depression angle.
For example, assuming that the elevation angle of the sight obtained in step 401 is α 1 and the depression angle of the sight obtained in step 402 is α 2, the one or more processors in the sight may calculate the elevation angle α between the sight and the object to be measured based on a pitch angle calculation formula, where the pitch angle calculation formula is: α ═ α 1- α 2.
In an embodiment of the present invention, the one or more processors in the sight may calculate the distance between the sight and the object to be measured based on the pitch angle and the estimated height of the object to be measured previously input into the sight.
The above step 401 is the same way as the angle correction process performed on the first angle acquired by the angle detection component in step 402, and the correction process may include the following steps:
and step A1, recording a plurality of first angles detected by the angle detection component after the sight in the ranging state reaches a preset recording triggering condition.
Because the sighting telescope is usually required to be held by an operator in the distance measuring process, the sighting telescope may shake in the process of holding the sighting telescope by the operator, so that a reference line displayed on a display interface shakes accordingly, and the reference line moves up and down on the upper boundary (or the lower boundary) of an image of an object to be measured. In an embodiment of the present invention, after the one or more processors in the sight detect that the sight reaches the preset recording trigger condition, the one or more processors may record a plurality of first angles detected by the angle detection component.
And step B1, acquiring the maximum first angle and the minimum first angle in the plurality of first angles after the preset recording end condition is reached.
In an embodiment of the present invention, after the one or more processors in the sight detect that the sight reaches the preset recording end condition, the one or more processors may stop recording the plurality of first angles detected by the angle detection component, and obtain a maximum first angle and a minimum first angle from the plurality of first angles recorded by the one or more processors.
Step C1, calculating an intermediate angle based on the maximum first angle and the minimum first angle. Wherein the difference between the intermediate angle and the largest first angle is the same as the difference between the intermediate angle and the smallest angle.
In an embodiment of the invention, the one or more processors in the sight calculate the intermediate angle based on the largest first angle and the smallest angle, the intermediate angle having an intermediate value between the largest first angle and the smallest minimum angle, that is, the difference between the intermediate angle and the largest first angle, and the difference between the intermediate angle and the smallest angle are the same.
And D1, determining the intermediate angle as the corrected angle of the first angle acquired by the angle detection component.
In the embodiment of the present invention, since the reference line moves up and down on the upper boundary (or the lower boundary) of the image of the object to be measured during the dithering of the collimator, and the intermediate angle is closest to the angle detected by the angle detection component in the collimator when the reference line coincides with the upper boundary (or the lower boundary) of the image of the object to be measured, the intermediate angle calculated in step C1 may be determined as the angle obtained by correcting the first angle acquired by the angle detection component.
In the related art, since the operator holds the sight to measure the distance, when the operator holds the sight and presses the measurement button, the sight inevitably shakes, and a reference line displayed on the sight also shakes, and when the measured angle is not coincident with an upper boundary (or a lower boundary) of an image of an object to be measured, an angle detected by the sight is large, so that an error of the angle measured by the sight is large, and finally an error of a measurement result is large.
In the embodiment of the invention, an operator does not need to press a measuring button, although the sighting telescope still shakes during the process of holding the sighting telescope by the operator, the elevation angle and the depression angle between the sighting telescope and the object to be measured, which are measured by the sighting telescope, are obtained through the correction of the angle correction process, and the corrected angle is closest to the angle detected by the angle detection assembly in the sighting telescope when the reference line is overlapped with the upper boundary (or the lower boundary) of the image of the object to be measured, so that the error of the angle measured by the sighting telescope is effectively reduced, and the final measuring result is improved.
In summary, according to the sight provided in the embodiment of the present invention, when the reference line in the display interface coincides with the upper boundary of the image of the object to be measured, the sight can measure the elevation angle of the upper boundary of the sight and the object to be measured; when the reference line in the display interface is coincident with the upper boundary of the image of the object to be measured, the sighting telescope can measure the depression angle of the sighting telescope and the lower boundary of the object to be measured. The elevation angle and the depression angle measured by the sighting telescope are obtained through correction in an angle correction process, and the corrected angle is closest to the angle detected by an angle detection assembly in the sighting telescope when a reference line is coincident with the upper boundary (or the lower boundary) of the image of the object to be measured, so that the error of measuring the angle through the sighting telescope is effectively reduced, and the final measuring result is improved.
Optionally, the preset recording triggering condition is: the length of time of the sight stagnation is larger than or equal to a first preset stagnation length of time. In an alternative implementation manner, as long as the sight in the ranging state reaches the preset recording trigger condition, the one or more processors in the sight may record the plurality of first angles detected by the angle detection component. Generally, after the sight is in the ranging state, the operator may move the sight so that a reference line displayed on a display interface in the sight coincides with an upper boundary (or a lower boundary) of an image of an object to be measured, and at this time, the operator may control the sight to be stationary for at least a first preset stationary time period to trigger one or more processors in the sight to record a plurality of first angles detected by the angle detection assembly.
In an embodiment of the present invention, the sight may detect whether the sight is in a moving state through a sensing component such as a gyroscope or an acceleration sensor, and when the sensing component does not detect that the sight is moving beyond a first preset dead time period, or when the sensing component detects that the sight is moving beyond the first preset dead time period, and a moving distance of the sight is smaller than a certain threshold, the sight may determine that the sight satisfies a preset recording trigger condition, and the one or more processors may record a plurality of first angles detected by the angle detection component.
Optionally, after the sight meets the preset recording trigger condition, one or more processors in the sight may control the display interface to display a prompt message for indicating that the sight meets the preset recording trigger condition. At this time, an operator may swing the sight along the direction of the reference line, and since an angle of the sight in the direction of the reference line (i.e., perpendicular to the direction of gravity) may change and an angle of the sight in the direction perpendicular to the reference line (i.e., perpendicular to the direction of gravity) may also change during the swinging of the sight, the embodiments of the present invention are schematically illustrated in the following two cases:
in the first case, if the angular change of the sight in the direction of gravity is too large, the final measurement result will be affected. Therefore, in order to avoid a large error in the final measurement result, after the one or more processors in the sight record the plurality of first angles detected by the angle detection component, the one or more processors are further configured to perform the following steps:
and A2, judging whether the angle variation of the sight in the gravity direction is within a first preset angle variation range.
In the embodiment of the invention, in the swinging process of the sighting telescope, the angle detection assembly can also detect the angle variation of the sighting telescope in the gravity direction, and further can judge whether the angle variation is within a first preset angle variation range.
And step B2, when the angle variation of the sighting telescope in the gravity direction is not within the first preset angle variation range, controlling a display interface to display alarm information for indicating measurement errors.
For example, assume that during the swinging of the sight, the upward angle variation amount with respect to the initial position of the reference line is | β 1|, the downward angle variation amount with respect to the initial position of the reference line is | β 2|, and the first preset angle variation range is [0, β |max]. If | β 1| > βmaxOr | β 2| > βmaxIf the angle variation of the sighting telescope in the gravity direction is not within the first preset angle variation range, controlling the display interface to display and indicatingAnd measuring wrong alarm information. An operator can know that the subsequent measurement error is large through the alarm information, and at the moment, the operator can measure again.
In the second case, if the angle of the sight in the direction perpendicular to the gravity direction is changed too much, the image of the object to be measured in the image displayed on the display interface in the sight may move out, and at this time, the sight may not display the image of the object to be measured. Therefore, in order to avoid the situation that the display interface cannot display the image of the object to be detected, the angle detection component in the sighting device is also configured to detect a second angle of the sighting device in the direction perpendicular to the gravity direction in real time based on the reference line when the sighting device is in the ranging state; after the one or more processors in the sight record the plurality of first angles detected by the angle detection component, the one or more processors are further configured to perform the steps of:
and A3, judging whether the angle variation of the sight in the direction perpendicular to the gravity is within a second preset angle variation range.
In the embodiment of the invention, in the swinging process of the sighting telescope, the angle variation of the sighting telescope in the direction vertical to the gravity can be detected through the angle detection assembly, and then whether the angle variation is within a second preset angle variation range can be judged.
And step B3, when the angle variation of the sight in the direction vertical to the gravity direction is not within a second preset angle variation range, controlling a display interface to display alarm information.
For example, assume that during the swinging of the sight, the angle variation amount to the left with respect to the initial position of the reference line is | α L |, the angle variation amount to the right with respect to the initial position of the reference line is | α R |, and the second preset angle variation range is [0, α |max]. If | α L | > αmaxOr | α R | > αmaxAnd if the angle variation of the sighting telescope in the direction of the reference line is not within the second preset angle variation range, controlling a display interface to display alarm information. The function of the alarm information may refer to step B2, and the embodiment of the present invention is not described herein again.
In combination with the aboveReferring to fig. 7, fig. 7 is a diagram illustrating the effect of the moving track range of the reference line according to the embodiment of the present invention, the reference line 11 can only move within a constraint range 00, the constraint range 00 can be represented by a rectangular area, wherein the position of the upper boundary of the constraint range 00 is the angle change β when the collimator moves upward relative to the initial position of the reference line 11maxThe position of the reference line; the position of the lower boundary of the constraint range 00 is when the sighting telescope moves downward relative to the initial position of the reference line 00 and the angle changes betamaxThe position of the reference line; the position of the left boundary of the constraint range 00 is the angular change α when the sight moves to the left with respect to the initial position of the reference line 11maxThe position of the leftmost end of the reference line; the position of the right boundary of the constraint range 00 is the angular change alpha when the sight moves to the right with respect to the initial position of the reference line 11maxThe position of the rightmost end of the reference line.
In the embodiment of the present invention, there are various ways for the collimator to reach the preset recording end condition, and as an example, the embodiment of the present invention exemplifies three realizable ways:
in a first implementation manner, the preset recording end condition is: after the sighting telescope swings in the direction of the reference line, the stagnation time length is larger than or equal to a second preset stagnation time length.
In an embodiment of the present invention, the sight may detect whether the sight swings in the direction of the reference line through the angle detection component, as long as the sight detects that the swing occurs in the direction of the reference line, and when the sight does not move beyond the second preset dead time period through the sensing component such as a gyroscope or an acceleration sensor, or when the sight moves beyond the second preset dead time period and the distance of the sight is smaller than a certain threshold, the one or more processors in the sight may determine that the sight meets the preset end-of-recording condition, and the one or more processors may stop recording the plurality of first angles detected by the angle detection component.
In a second implementation manner, the preset recording end condition is: after the sighting telescope performs at least one reciprocating swing along the direction of the reference line, the stagnation time length is larger than or equal to a second preset stagnation time length.
In the embodiment of the invention, the sight may detect at least one reciprocating swing in the direction along the reference line by the gyroscope, for example, the sight swings left in the direction along the reference line until returning to the initial position, that is, one reciprocating swing, or the sight swings right in the direction along the reference line until returning to the initial position, that is, one reciprocating swing. It should be noted that, one or more processors in the sight detect whether the length of the stall time is greater than or equal to the second preset stall time length, and refer to the corresponding description in the first implementation manner, which is not described again in this embodiment of the present invention.
In a third implementable manner, the preset recording end condition is: the sighting telescope swings to the first side and then returns to the initial position in the direction along the reference line, swings to the second side and then returns to the initial position, and the stagnation time length of the sighting telescope at the initial position is greater than or equal to a second preset stagnation time length; wherein the first side and the second side are one of a left side and a right side, respectively.
It should be noted that, for the implementation principle in the three implementation manners, reference may be made to corresponding contents in the first implementation manner and the second implementation manner, and details of the embodiment of the present invention are not described again.
Optionally, after the sight reaches the preset recording end condition, one or more processors in the sight may control the display interface to display a prompt message for indicating that the sight meets the preset recording end condition. At this time, the operator may move the sight so that the reference line coincides with another boundary of the image of the object to be measured based on the prompt information, or the operator may determine that the process of ranging by the sight has been completed based on the prompt information.
In summary, according to the sight provided in the embodiment of the present invention, when the reference line in the display interface coincides with the upper boundary of the image of the object to be measured, the sight can measure the elevation angle of the upper boundary of the sight and the object to be measured; when the reference line in the display interface is coincident with the upper boundary of the image of the object to be measured, the sighting telescope can measure the depression angle of the sighting telescope and the lower boundary of the object to be measured. The elevation angle and the depression angle measured by the sighting telescope are obtained through correction in an angle correction process, and the corrected angle is closest to the angle detected by an angle detection assembly in the sighting telescope when a reference line is coincident with the upper boundary (or the lower boundary) of the image of the object to be measured, so that the error of measuring the angle through the sighting telescope is effectively reduced, and the final measuring result is improved.
An embodiment of the present invention further provides a method for using an address tool, please refer to fig. 8, where fig. 8 is a flowchart of a method for using an address tool according to an embodiment of the present invention, where the method is applied to the address tool shown in fig. 2, and the method may include:
step 801, after the sighting device enters a ranging state, moving the sighting device so that a reference line displayed on a display interface of the sighting device coincides with an upper boundary of an image of the object to be measured.
In the embodiment of the invention, when an operator controls the sight to enable the sight to be in a distance measuring state, the display interface of the sight can display the reference line, and the operator needs to move the sight to enable the reference line to be superposed with the upper boundary of the image of the object to be measured.
And step 802, after the sight is controlled to stop for a first preset stop duration, the sight is swung along the direction of the reference line.
In the embodiment of the present invention, after the operator controls the sight to stop for the first preset stop duration, the sight may detect that the sight reaches the preset recording trigger condition, and when the display interface displays the prompt information indicating that the sight meets the preset recording trigger condition, the operator may control the sight to execute step 803.
And step 803, after the swing is finished, controlling the sight to stop for a second preset stop time period.
In the embodiment of the present invention, after the operator controls the sight to stop for the second preset stop duration, the sight may detect that the sight reaches the preset recording end condition, and when the display interface displays a prompt message for indicating that the sight meets the preset recording end condition, the operator may control the sight to perform step 804.
And step 804, moving the sighting device so that a reference line displayed on a display interface of the sighting device is superposed with the lower boundary of the image of the object to be detected.
In the embodiment of the invention, after the sighting telescope determines the elevation angle between the sighting telescope and the upper boundary of the object to be measured, the sighting telescope can be moved, so that the reference line displayed on the display interface of the sighting telescope coincides with the lower boundary of the image of the object to be measured.
Step 805, after the sight is controlled to stop for the first preset stop duration, the sight is swung along the direction of the reference line.
This step may refer to the corresponding process of step 802, which is not described herein again.
And 806, after the swing is finished, controlling the sight to stop for a second preset stop time.
This step may refer to the corresponding process of step 803, which is not described herein again. It should be noted that after the step 806 is completed, the sighting telescope can measure the distance between the sighting telescope and the object to be measured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. An sight, comprising:
the display interface is configured to display the reference line and an image of the object to be measured when the sighting device is in a ranging state;
an angle detection component configured to detect a first angle of the sight in a direction of gravity based on the reference line in real time while the sight is in a ranging state;
one or more processors configured to perform an angle correction process on the first angle acquired by the angle detection component when the reference line coincides with an upper boundary of the image of the object under test, determine a corrected angle as an elevation angle of the sight,
when the reference line is coincident with the lower boundary of the image of the object to be detected, executing an angle correction process on the first angle acquired by the angle detection component, determining the corrected angle as the depression angle of the sighting telescope,
calculating the distance between the sighting device and the object to be measured based on the elevation angle and the depression angle;
wherein the angle correction process comprises:
recording a plurality of first angles detected by the angle detection assembly after the sight in the ranging state reaches a preset recording triggering condition;
acquiring a maximum first angle and a minimum first angle in the plurality of first angles after a preset recording end condition is reached;
calculating an intermediate angle based on the largest first angle and the smallest first angle, the intermediate angle being the same as the largest first angle and the intermediate angle being the same as the smallest angle;
and determining the intermediate angle as an angle obtained after correcting the first angle acquired by the angle detection component.
2. The sight of claim 1,
the preset recording triggering conditions are as follows: the length of time of the sight stagnation is greater than or equal to a first preset stagnation length of time.
3. The sight of claim 1,
the preset recording end condition is as follows: after the sighting telescope swings in the direction of the reference line, the stagnation time length is greater than or equal to a second preset stagnation time length.
4. The sight of claim 3,
the preset recording end condition is as follows: after the sighting telescope performs at least one reciprocating swing along the direction of the reference line, the stagnation time length is greater than or equal to the second preset stagnation time length.
5. The sight of claim 4,
the preset recording end condition is as follows: the sighting telescope swings to the first side and then returns to the initial position along the direction of the reference line, then swings to the second side and then returns to the initial position, and the stagnation time length of the sighting telescope at the initial position is greater than or equal to the second preset stagnation time length;
wherein the first side and the second side are one of a left side and a right side, respectively.
6. The sight of any of claims 1 to 5, wherein the one or more processors are further configured to:
judging whether the angle variation of the sighting telescope in the gravity direction is within a first preset angle variation range or not;
and when the angle variation of the sighting telescope in the gravity direction is not within the first preset angle variation range, controlling the display interface to display alarm information for indicating measurement errors.
7. The sight of claim 6,
the angle detection component is further configured to detect a second angle of the sight in a direction perpendicular to gravity based on the reference line in real time when the sight is in a ranging state;
the one or more processors further configured to:
judging whether the angle variation of the sighting telescope in the direction vertical to the gravity is within a second preset angle variation range or not;
and when the angle variation of the sighting telescope in the direction perpendicular to the gravity direction is not within a second preset angle variation range, controlling the display interface to display the alarm information.
8. The sight of any of claims 1 to 5, wherein the one or more processors are further configured to:
after the fact that the sighting device meets the preset recording triggering condition is detected, controlling the display interface to display prompt information for indicating that the sighting device meets the preset recording triggering condition;
and after the fact that the sight meets the preset recording end condition is detected, controlling the display interface to display prompt information for indicating that the sight meets the preset recording end condition.
9. The sight of claim 1,
the sighting device is an observing and sighting type thermal imager.
10. The sight of claim 1,
the angle sensing component is a gyroscope.
CN201810607245.9A 2018-06-13 2018-06-13 Aiming device Active CN110595441B (en)

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