CN110375768B - Device and method for measuring indoor non-parallelism of television measuring instrument - Google Patents
Device and method for measuring indoor non-parallelism of television measuring instrument Download PDFInfo
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- CN110375768B CN110375768B CN201711452222.7A CN201711452222A CN110375768B CN 110375768 B CN110375768 B CN 110375768B CN 201711452222 A CN201711452222 A CN 201711452222A CN 110375768 B CN110375768 B CN 110375768B
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- 238000005259 measurement Methods 0.000 claims abstract description 55
- 238000009434 installation Methods 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims description 32
- 230000000007 visual effect Effects 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
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- 238000001454 recorded image Methods 0.000 claims description 3
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
Abstract
The invention provides a device and a method for measuring indoor non-parallelism of a television measuring instrument. The device for measuring the indoor non-parallelism of the television measuring instrument provided by the embodiment of the invention can rapidly finish the positioning and leveling of the television measuring instrument in a warehouse, can precisely measure and finely adjust the non-parallelism of the television measuring instrument after being positioned, ensures the installation precision of the television measuring instrument, improves the precision of equipment detection or measurement, and solves the problems that the television measuring instrument is manually finished in the prior art, and has larger uncertainty and inaccuracy.
Description
Technical Field
The invention relates to the technical field of leveling and non-parallelism measurement of a television measuring instrument, in particular to an indoor non-parallelism measuring device and method of the television measuring instrument.
Background
The television measuring instrument is special optical measuring equipment for a target range, and is used for tracking and measuring the water inlet trajectory and the water outlet trajectory of an air trajectory and a low-altitude sea-skimming flying target. Error detection of optical measurement equipment generally comprises visual axis error, horizontal axis error, vertical axis error, orientation error and zero error detection, and the leveling degree of a television measuring instrument after the adjustment of a workshop and a measuring station position can directly influence the detection precision of the equipment.
At present, the in-place adjustment process of a television measuring instrument workshop and a measuring station is basically finished by adopting manual and simple tool equipment, the leveling of the equipment is finished by adopting repeated measurement of an inclinometer on different angle surfaces of the equipment, the initial inclination caused by the error of an installation locating pin is often lacked in the whole adjustment process, the corresponding visual marking method is difficult to quickly level and needs to be reworked continuously, or the leveling precision requirement still cannot be met after repeated adjustment, so that the detection or measurement requirement is forced to be reduced, and the current stage of the adjustment process completely depends on the installation and leveling experience and proficiency of operators.
The special workshop detection of the television measuring instrument adopts a dynamic target simulating an infinite point light source, and because the equipment is generally provided with a plurality of optical systems such as capturing, measuring and infrared detecting televisions, a photoelectric stable platform or a dynamic target source is adopted for sharing the same simulated target source, the special detection equipment has strict requirements for installation, debugging and use, and the workshop of the target range instrument and the measuring station do not have the conditions for installing and using the special detection equipment.
Disclosure of Invention
The embodiment of the invention provides a device and a method for measuring indoor non-parallelism of a television measuring instrument, which aim to solve the problems that in the prior art, the installation and adjustment of the television measuring instrument are finished manually, and the uncertainty and the inaccuracy are large.
The invention provides an indoor non-parallelism measuring device of a television measuring instrument, which consists of a laser collimator, a measuring display board, an image recording unit and an image real-time interpretation and data processing module; the laser collimator comprises two laser collimator tubes, wherein when the laser collimator tube is installed, one laser collimator tube is parallel to the main optical axis of the television measured by the television measuring instrument, the other laser collimator tube is perpendicular to the main optical axis of the television measured by the television measuring instrument, and the beam angle is not more than 2 degrees; the measuring display panel comprises two measuring display panels and is used for displaying emergent light spots; the image recording unit is used for recording the light spots shot by the measurement television; the image real-time interpretation and data processing module is used for carrying out real-time processing according to the light spot recorded image and calculating the indoor non-parallelism of the television measuring instrument.
Wherein, the selection index requirement of the laser collimator is: the laser wavelength range is 635 nm-660 nm; the laser output power is 0.5-20 mw; the divergence angle of the light beam is 0.02-0.2 mark; the diameter of the light beam is phi 5 mm-phi 20mm; the laser grade is IIIb grade.
Preferably, the measurement display panel is made of a flat thin aluminum plate or a solid wood plate.
The mounting method of the measurement display panel comprises the following steps:
(1) firstly, arranging a theodolite at the center point of a base according to the horizontal plane and the center point of the instrument base of an equipment workshop, selecting a wall surface with conditions suitable for installing a measurement display panel as a target, and keeping the visual axis of the theodolite perpendicular to the wall surface;
(2) after the level gauge is arranged according to a certain height, the intersection point of the level gauge and the visual axis of the theodolite on the wall surface is the mounting center point of the first measurement display panel, and the first measurement display panel is mounted;
(3) rotating the theodolite by 90 degrees, and selecting a wall surface suitable for installing an optical measurement display plate as a target, wherein the visual axis of the theodolite is kept to be perpendicular to the wall surface;
(4) and the intersection point of the level gauge and the visual axis of the theodolite on the wall surface is the installation center point of the second measurement display panel, so that the second measurement display panel is installed.
In order to solve the technical problem, the embodiment of the invention also provides a method for measuring the indoor non-parallelism of the television measuring instrument, which comprises the following steps:
101: firstly, a television measuring instrument is initially installed on a fixed point position base of a workshop, a light emitting device of two laser collimator tubes which are mutually perpendicular to each other and installed on the television measuring instrument is turned on, the light emitting device emits collimated light, the television measuring instrument is rotated to enable two emergent light spots to be respectively projected on a measurement display plate, meanwhile, the relative positions of the two light spots and a vertical position mark line on the measurement display plate are observed, the direction of the television measuring instrument which needs to rotate can be judged according to the positions of the light spots, and then when equipment workshop instruments are rotated to enable the two light spots to be uniformly projected on the central position of the vertical position mark line of the measurement display plate, positioning pins can be screwed to complete equipment to be in place;
102: observing the relative position of the light spot and a horizontal position mark line on the measurement display panel, wherein the television measuring instrument is inclined downwards in the direction when the light spot is lower than the horizontal mark line, and is inclined upwards when the light spot is higher than the horizontal mark line; the relative positions of the two light spots and the horizontal mark line are observed, so that the inclination direction of the measuring plane of the television measuring instrument can be judged, and further, the leveling screw is adjusted, so that the light spots are uniformly projected on the central position of the measuring display panel, and the accurate leveling of the television measuring instrument is completed;
103: after leveling a television measuring instrument, starting a measuring television, shooting light spots projected on the measuring display panel, and recording through the image recording unit;
104: the image recording unit sends the recorded facula images to the image real-time interpretation and data processing module, and the images are processed by the image real-time interpretation and data processing module;
105: obtaining the high and low angle E of the light spot position Measuring WhileWherein D is the vertical distance from the measurement center of the television measuring instrument to the emergent light spot, D is the horizontal distance from the measurement center to the measurement display panel, and Δe=e Measuring -E True sense The non-parallelism of the main optical axis in the direction is measured by the television measuring instrument;
106: when the measurement result of the non-parallelism of the instrument cannot meet the technical index requirements of equipment installation and debugging, the installation position of the television measuring instrument is finely adjusted according to the measurement result, a single-frame facula image is interpreted and processed in real time in the debugging process, and the result is used as the basis of the next fine adjustment until the measurement result of the non-parallelism completely meets the technical index requirements of equipment installation and debugging.
The beneficial effects of the invention are as follows: the embodiment of the invention provides a device and a method for measuring indoor non-parallelism of a television measuring instrument. The device for measuring the indoor non-parallelism of the television measuring instrument provided by the embodiment of the invention can rapidly finish the positioning and leveling of the television measuring instrument in a warehouse, can precisely measure and finely adjust the non-parallelism of the television measuring instrument after being positioned, ensures the installation precision of the television measuring instrument, improves the precision of equipment detection or measurement, and solves the problems that the television measuring instrument is manually finished in the prior art, and has larger uncertainty and inaccuracy.
Drawings
Fig. 1 is a schematic structural diagram of an indoor non-parallelism measuring device of a television measuring instrument according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a laser collimator installed in a device for measuring indoor non-parallelism of a television measuring instrument according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a method for measuring indoor non-parallelism of a television measuring instrument according to an embodiment of the present invention;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
Referring to fig. 1, the embodiment of the invention provides an indoor non-parallelism measuring device of a television measuring instrument, which consists of a laser collimator, a measuring display board, an image recording unit and an image real-time interpretation and data processing module; the laser collimator comprises two laser collimator tubes, wherein when the laser collimator tube is installed, one laser collimator tube is parallel to the main optical axis of the television measured by the television measuring instrument, the other laser collimator tube is perpendicular to the main optical axis of the television measured by the television measuring instrument, and the beam angle is not more than 2 degrees; the measuring display panel comprises two measuring display panels and is used for displaying emergent light spots; the image recording unit is used for recording the light spots shot by the measurement television; the image real-time interpretation and data processing module is used for carrying out real-time processing according to the light spot recorded image and calculating the indoor non-parallelism of the television measuring instrument.
In the embodiment of the invention, the technical requirements of the laser collimator are as follows:
(1) laser wavelength range: 635nm to 660nm;
(2) laser output power: 0.5-20 mw;
(3) beam divergence angle: 0.02-0.2 mark;
(4) beam diameter: phi 5 mm-20 mm;
(5) laser grade: and IIIb stage.
The laser collimator installation requirements are as follows:
in the design and processing stage of the measuring equipment, two mutually perpendicular laser parallel light pipes are designed and installed on the reference plane of the television measuring instrument, and one parallel light pipe is guaranteed to be parallel to the main optical axis of the television measuring instrument for measuring television, and the other parallel light pipe is perpendicular to the main optical axis. The collimator beam angle is no greater than 2 degrees.
The specific installation process of the laser collimator is as follows:
(1) firstly, positioning and accurately leveling measuring equipment on a reference platform of an instrument assembly total adjustment room;
(2) after the television measuring instrument is started, fixing the pitch angle (high and low angle) of the equipment to be zero, determining the installation distance d1 between the laser collimator 1 parallel to the main optical axis and the main optical axis on the reference plane of the measuring equipment, determining the current azimuth angle of the television measuring instrument to be an initial azimuth, calibrating the instrument to measure the main optical axis of the television by using a theodolite, and setting the current position of the theodolite to be point A, wherein the installation process is shown in a schematic diagram shown in fig. 2;
(3) rotating the theodolite by 90 degrees according to the direction of the main optical axis at the point A1 (the direction is the installation direction required by the collimator tube perpendicular to the main optical axis), and setting a mark point on the ground B1 at the far end of the storehouse;
(4) positioning the theodolite at the point B1, aiming at the point A1, determining the position of the connecting line A1B1 at the distance d1 from the point A1 to be the point C1 by utilizing a ruler, and setting a mark point;
(5) positioning the theodolite at the point C1, and rotating the point A1 counterclockwise by 90 degrees to obtain a first collimator mounting axis, and completing the first collimator mounting and adjustment under the cooperation of the level gauge;
(6) rotating the television measuring instrument by 90 degrees under the initial azimuth condition, fixing a pitch angle (high-low angle) to be a zero position, wherein a main optical axis formed by the device is vertical to a main optical axis in a (2) state, determining an installation distance d2 between a laser collimator 2 which is parallel to a current main optical axis and the current main optical axis on a reference plane of the measuring device, calibrating the instrument to measure the main optical axis of the television by using the theodolite, and setting the current position point of the theodolite to be an A2 point;
(7) a marking point is arranged on the ground B2 at the far end of the storeroom by rotating the theodolite by 90 degrees according to the direction of the main optical axis at the moment (the direction is the installation direction required by the collimator tube perpendicular to the main optical axis);
(8) turning the television measuring instrument back to the initial azimuth, positioning the theodolite at the point B2, aiming at the point A2, and connecting the theodolite at the point A2B 2; determining the distance d2 from the point A2 as a point C2 by utilizing a ruler and setting a mark point;
(9) positioning the theodolite at the C2 point, aiming the A2 point, rotating clockwise for 90 degrees to obtain the mounting axis of the second laser collimator, and completing the mounting and adjustment of the 2 nd laser collimator under the cooperation of the level gauge;
and the central height H (distance from the ground level of the storehouse) of the laser collimator is measured by using a level gauge.
In the embodiment of the invention, the measuring display panel is made of a flat thin aluminum plate (or a firm wood plate), black stripes are drawn on a white base plate, the center horizontal and vertical stripes are solid lines, the extended horizontal and vertical stripes are dotted lines (20 stripes in each horizontal and vertical direction), the stripe width is 2mm, the stripe spacing is 10mm, and the base plate and stripe color paint are sprayed.
The equipment storage and debugging workshop is provided with a measurement display board, and the measurement display board is installed as follows:
(1) firstly, positioning a theodolite at the center point of a base according to the horizontal plane and the center point of the instrument base of an equipment workshop, selecting a wall surface with conditions suitable for installing an optical measurement display panel as a target, and keeping the visual axis of the theodolite vertical to the wall surface;
(2) the intersection point of the level gauge positioned according to the height H and the visual axis of the theodolite on the wall surface is the mounting center point of the first optical measurement display plate, and the first measurement plate is mounted;
(3) the theodolite positioned at the center point of the base rotates for 90 degrees, a wall surface suitable for installing an optical measurement display panel is selected as a target, and the visual axis of the theodolite is kept perpendicular to the wall surface;
(4) the intersection point of the level gauge and the visual axis of the theodolite on the wall surface is the installation center point of the second optical measurement display plate, and the second measurement plate is installed.
Example 1
The device provided by the embodiment of the invention can rapidly complete the positioning and leveling of the television measuring instrument in a storehouse, and is concretely as follows:
firstly, a television measuring instrument is initially installed on a fixed point position base of a workshop, two collimator light-emitting devices which are mutually perpendicular to each other and installed on the television measuring instrument are opened, the light-emitting devices emit collimated light, the television measuring instrument is rotated to enable two emergent light spots to be respectively projected on a display board, meanwhile, the relative positions of the two light spots and a vertical position mark line on the display board are observed, the direction that the television measuring instrument needs to rotate can be judged according to the positions of the light spots, and then the instrument is rotated to enable the two light spots to be uniformly projected on the central position of the vertical position mark line of the display board, and positioning pins can be screwed to complete equipment positioning.
And observing the relative position of the light spot and a horizontal position mark line on the display panel, wherein the television measuring instrument is inclined downwards in the direction when the light spot is lower than the horizontal mark line, and is inclined upwards when the light spot is higher than the horizontal mark line. And simultaneously, the relative positions of the two light spots and the horizontal marking line are observed, so that the inclination direction of a plane determined by the two directions (namely, the measurement plane of the television measuring instrument) can be judged, and further, the leveling screw is adjusted, so that the light spots are uniformly projected at the center of the display panel, and the accurate leveling of the television measuring instrument is finished.
Example two
The device provided by the embodiment of the invention can be used for accurately measuring the non-parallelism of the television measuring instrument after being in place, and is concretely as follows:
after the television measuring instrument is leveled, a television measuring instrument measuring system is started to shoot and record light spots projected on the display panel by using a measuring television. The recorded facula images are interpreted in real time through image real-time and data processing software, as shown in figure 3, the high and low angles E of the facula positions are obtained Measuring WhileWherein D is the vertical distance from the measurement center of the television measuring instrument to the emergent light spot, D is the horizontal distance from the measurement center to the measurement display panel, and Δe=e Measuring -E True sense The non-parallelism of the main optical axis in the direction is measured by the television measuring instrument.
If the measurement result of the non-parallelism of the instrument cannot meet the technical index requirement of equipment installation and debugging, the installation position of the television measuring instrument can be finely adjusted according to the measurement result, in the debugging process, the single-frame facula image can be interpreted and processed in real time, the result is used as the basis of the next fine adjustment until the measurement result of the non-parallelism completely meets the technical index requirement of equipment installation and debugging, and the accurate measurement of the non-parallelism of the television measuring instrument is completed.
The embodiment of the invention provides a device and a method for measuring indoor non-parallelism of a television measuring instrument. The device for measuring the indoor non-parallelism of the television measuring instrument provided by the embodiment of the invention can rapidly finish the positioning and leveling of the television measuring instrument in a warehouse, can precisely measure and finely adjust the non-parallelism of the television measuring instrument after being positioned, ensures the installation precision of the television measuring instrument, improves the precision of equipment detection or measurement, and solves the problems that the television measuring instrument is manually finished in the prior art, and has larger uncertainty and inaccuracy.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The method for measuring the indoor non-parallelism of the television measuring instrument is characterized by applying a device for measuring the indoor non-parallelism of the television measuring instrument, wherein the device for measuring the indoor non-parallelism of the television measuring instrument consists of a laser collimator, a measuring display board, an image recording unit and an image real-time interpretation and data processing module; the laser collimator comprises two laser collimator tubes, wherein when the laser collimator tube is installed, one laser collimator tube is parallel to the main optical axis of the television measured by the television measuring instrument, the other laser collimator tube is perpendicular to the main optical axis of the television measured by the television measuring instrument, and the beam angle is not more than 2 degrees; the measuring display panel comprises two measuring display panels and is used for displaying emergent light spots; the image recording unit is used for recording the light spots shot by the measurement television; the image real-time interpretation and data processing module is used for carrying out real-time processing according to the light spot recorded image and calculating the indoor non-parallelism of the television measuring instrument, and specifically comprises the following steps:
101: firstly, a television measuring instrument is initially installed on a fixed point position base of a workshop, a light emitting device of two laser collimator tubes which are mutually perpendicular to each other and installed on the television measuring instrument is turned on, the light emitting device emits collimated light, the television measuring instrument is rotated to enable two emergent light spots to be respectively projected on a measurement display plate, meanwhile, the relative positions of the two light spots and a vertical position mark line on the measurement display plate are observed, the direction of the television measuring instrument which needs to rotate can be judged according to the positions of the light spots, and then when equipment workshop instruments are rotated to enable the two light spots to be uniformly projected on the central position of the vertical position mark line of the measurement display plate, positioning pins can be screwed to complete equipment to be in place;
102: observing the relative position of the light spot and a horizontal position mark line on the measurement display panel, wherein the television measuring instrument is inclined downwards in the direction when the light spot is lower than the horizontal mark line, and is inclined upwards when the light spot is higher than the horizontal mark line; the relative positions of the two light spots and the horizontal mark line are observed, so that the inclination direction of the measuring plane of the television measuring instrument can be judged, and further, the leveling screw is adjusted, so that the light spots are uniformly projected on the central position of the measuring display panel, and the accurate leveling of the television measuring instrument is completed;
103: after leveling a television measuring instrument, starting a measuring television, shooting light spots projected on the measuring display panel, and recording through the image recording unit;
104: the image recording unit sends the recorded facula images to the image real-time interpretation and data processing module, and the images are processed by the image real-time interpretation and data processing module;
105: obtaining the high and low angle E of the light spot position Measuring WhileWherein D is the vertical distance from the measurement center of the television measuring instrument to the emergent light spot, D is the horizontal distance from the measurement center to the measurement display panel, and Δe=e Measuring -E True sense The non-parallelism of the main optical axis in the direction is measured by the television measuring instrument;
106: when the measurement result of the non-parallelism of the instrument cannot meet the technical index requirements of equipment installation and debugging, the installation position of the television measuring instrument is finely adjusted according to the measurement result, a single-frame facula image is interpreted and processed in real time in the debugging process, and the result is used as the basis of the next fine adjustment until the measurement result of the non-parallelism completely meets the technical index requirements of equipment installation and debugging.
2. The method for measuring indoor non-parallelism of a television measuring instrument according to claim 1, wherein the selection index requirement of the laser collimator is: the laser wavelength range is 635 nm-660 nm; the laser output power is 0.5-20 mw; the divergence angle of the light beam is 0.02-0.2 mark; the diameter of the light beam is phi 5 mm-phi 20mm; the laser grade is IIIb grade.
3. The method of claim 1, wherein the measurement display panel is made of a flat thin aluminum plate or a solid wood plate.
4. The method for measuring indoor non-parallelism of a television measuring instrument according to claim 1, wherein the method for mounting the measuring display panel is as follows:
(1) firstly, arranging a theodolite at the center point of a base according to the horizontal plane and the center point of the base of equipment room equipment, selecting a wall surface with conditions suitable for installing a measurement display panel as a target, and keeping the visual axis of the theodolite vertical to the wall surface;
(2) after the level gauge is arranged according to a certain height, the intersection point of the level gauge and the visual axis of the theodolite on the wall surface is the mounting center point of the first measurement display panel, and the first measurement display panel is mounted;
(3) rotating the theodolite by 90 degrees, and selecting a wall surface suitable for installing an optical measurement display plate as a target, wherein the visual axis of the theodolite is kept to be perpendicular to the wall surface;
(4) and the intersection point of the level gauge and the visual axis of the theodolite on the wall surface is the installation center point of the second measurement display panel, so that the second measurement display panel is installed.
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