CN113359372A - Automatic focusing and light supplementing device and method of camera for uniaxial compressive strength test - Google Patents
Automatic focusing and light supplementing device and method of camera for uniaxial compressive strength test Download PDFInfo
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- CN113359372A CN113359372A CN202110625323.XA CN202110625323A CN113359372A CN 113359372 A CN113359372 A CN 113359372A CN 202110625323 A CN202110625323 A CN 202110625323A CN 113359372 A CN113359372 A CN 113359372A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/18—Focusing aids
- G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an automatic focusing and light supplementing device of a camera for a uniaxial compressive strength test, which comprises a test table board, a computer controller, a test piece placing table, a first air cylinder and an annular track, more than one focusing and light supplementing integrated detection device is connected on the annular track in a sliding way, each focusing and light supplementing integrated detection device comprises a signal processor, an engineering camera and a light supplementing device, the lower part of the engineering camera is electrically connected with the signal processor, the automatic leveling device comprises a signal processor, a first automatic lifting device, a light supplementing device, a second automatic lifting leveling device, a computer controller and a control device, wherein the first automatic lifting device is connected below the signal processor, the light supplementing device is electrically connected with the signal processor, the second automatic lifting leveling device is connected below the light supplementing device, the second automatic lifting leveling device is connected below the second automatic lifting leveling device in a sliding mode, and the first automatic lifting device and the second automatic lifting leveling device are electrically connected with the computer controller. The invention also discloses an automatic focusing and light supplementing method of the camera for the uniaxial compressive strength test. The invention improves the working efficiency.
Description
Technical Field
The invention relates to the technical field of real-time automatic monitoring of a test piece in a uniaxial test process, in particular to an automatic focusing and light supplementing method of a camera for a uniaxial compressive strength test.
Background
Uniaxial compressive strength refers to the load which can be borne on a unit area when a rock test piece is stressed in a unidirectional mode until the rock test piece is damaged, and is called compressive strength for short. According to the fact that a standard test piece is crushed in a water-containing state, the test piece has dry compressive strength, natural compressive strength and saturated compressive strength, and in order to test the uniaxial compressive strength of the rock in a laboratory, a uniaxial compressive strength test process is needed.
At present, in the process of a uniaxial compression test, the information of a compression-resistant picture of an experimental object is finally required to be acquired, which is generally completed by photographing the picture in the experimental process by a person, so that a camera is indispensable, in the process of the current uniaxial compression test, a camera is generally directly erected on a camera bracket for focusing, and then an experiment worker manually focuses and levels the camera by observing the acquisition condition of the picture, so that the final experimental time is too long, the experimental efficiency is low, and the manual focusing is obtained through experience, so that the focusing error rate is low. So there is a need for improvement.
Disclosure of Invention
The invention aims to provide an automatic focusing and light supplementing method of a camera for a uniaxial compressive strength test, which aims to solve the problems of overlong focusing time and low test efficiency in the background technology, realize the uniaxial test more quickly and efficiently, effectively shorten the test preparation working time, reduce manual operation and improve the test effect.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic focusing and light filling device of camera for unipolar compressive strength test, includes a test table face and a computer control ware, is provided with a test piece that is used for placing the test piece at test table face's center and places the platform, test table face's bottom is provided with the first cylinder that drives the test piece and place the platform and reciprocate, still is provided with an annular rail around placing the platform outside at the test piece on test table face, its characterized in that, sliding connection has the integrative check out test set of light filling of focusing more than one on annular rail, and the integrative check out test set of light filling of each focusing all includes following equipment:
a signal processor which is connected with the computer controller by signals to realize data transmission of the shape of the test piece transmitted by the computer;
the engineering camera can clearly focus and level and can be controlled by a computer controller to realize automatic focusing;
a light supplement device capable of increasing and decreasing brightness;
wherein the lower part of the engineering camera is electrically connected with the signal processor, the lower part of the signal processor is connected with a first automatic lifting device, the lower part of the first automatic lifting device is connected with a light supplementing device which is electrically connected with the signal processor, a brightness sensor which is electrically connected with the signal processor and used for detecting the ambient brightness is arranged above the light supplementing device, the lower part of the light supplementing device is connected with a second automatic lifting and leveling device, the lower part of the second automatic lifting and leveling device is connected on the circular track in a sliding way, the first automatic lifting and leveling device and the second automatic lifting and leveling device are electrically connected with a computer controller, the computer controller is connected with data for storing original test piece photos and test piece size information, and a focusing start key which is communicated with an automatic focusing button of the engineering camera is arranged in the engineering camera, the focusing starting key is electrically connected with the computer controller, a first laser ranging sensor for ranging with the test table top is arranged at the bottom of the engineering camera, a second laser ranging sensor for measuring the height between the test piece placing table and the test table top is arranged on the test piece placing table, and the first laser ranging sensor and the second laser ranging sensor are electrically connected with the computer controller.
In order to realize wider detection range, the engineering camera can rotate horizontally.
Furthermore, in order to facilitate operation and disassembly, two sliding blocks which are arranged at intervals are arranged below the second automatic lifting leveling device, each sliding block is provided with an automatic extending device which can stretch horizontally, the two automatic extending devices are symmetrically arranged, the two automatic extending devices are inserted into the annular rail and can slide in the annular rail, and the automatic extending devices are electrically connected with the computer controller to realize the locking limiting or sliding state of the automatic extending devices and the annular rail under the control of the computer controller.
Preferably, the comprehensiveness and the precision of detection are improved, the integrated detection equipment for focusing and light supplementing is shared, the annular and equidistant arrangement is carried out on the annular track, and the light supplementing head and the focusing head of the integrated detection equipment for focusing and light supplementing are both towards the central point of the annular track.
Further, as the reminding, a light reminder for reminding when the signal processor is communicated with the computer controller is arranged on the signal processor.
The invention also discloses an automatic focusing and light supplementing method of the camera for the uniaxial compressive strength test, which comprises the automatic focusing and light supplementing device of the camera for the uniaxial compressive strength test, and specifically comprises the following steps:
s1, firstly, turning on a switch of an engineering camera on each focusing and light supplementing integrated detection device, then turning on a computer end of a computer controller, enabling the signal processor and the computer controller to be connected to work normally, and displaying signal source indications corresponding to the number of the signal processors on the computer controller;
s2, shooting by a user through a complete picture of a test piece to be tested in advance, acquiring the height H1 of the test piece, and storing the height H1 in a data storage library of a computer controller;
s3, carrying out primary photographing processing on the test piece through an engineering camera on each focusing and light supplementing integrated detection device, then automatically transmitting the processed test piece to a computer controller through a signal processor, displaying the processed test piece by a computer screen of the computer controller, comparing the processed test piece with a stored photo, judging whether the photo is incomplete or not, and if the photo is incomplete, entering S5; if the photo is found to be complete, go to step S4;
s4, lighting every 5 minutes to take pictures again and store the pictures in a data repository to replace the original pictures, and returning to the step S3;
s5, performing automatic focusing processing, namely performing automatic focusing by adopting input data or adopting a full automatic focusing mode, and if the automatic focusing is performed by adopting the input data mode, performing S6; if the full auto-focus mode is selected, go to step S7;
s6, inputting corresponding focusing adjustment data by a user on a computer end of a computer controller according to a shot photo, sending the data to a signal processor after the focusing adjustment data is acquired by the computer controller, sending the data to a first automatic lifting device according to the requirements of a pre-stored focusing parameter table of a corresponding database after the data is acquired by the signal processor, adjusting the automatic focusing position of the first automatic lifting device according to the determined requirements, carrying out real-time photographing processing, then comparing the data according to the picture comparison mode of the step S3, and replacing the focusing data by the user to finally achieve the focusing requirement; meanwhile, the brightness sensor is used for acquiring the ambient brightness in real time, when the environmental requirement is not suitable for photographing, the light supplementing device is automatically started, the brightness adjusting operation is carried out according to the requirement, meanwhile, the height of the light supplementing device is adjusted by controlling the second automatic lifting leveling device, and the light of the light supplementing device is made to strike on the test piece in real time, so that the automatic focusing and light supplementing operations are realized;
s7, the first computer controller obtains the height H1 of the test piece, an intermediate value H1/2 is obtained, then the second laser ranging sensor is started to measure the height S of the test table top and the test piece placing table, then the height H2 from the center point of the test piece to the test table top is calculated to be H1/2+ S, then the first laser ranging sensor is started to obtain the height H3 from the bottom of the engineering camera and the test table top, the height H4 from the focusing center point of the engineering camera lens to the test table top is obtained by the computer controller to be H3+ half of the diameter of the engineering camera lens, the first automatic lifting device is controlled by the computer controller to drive the engineering camera lens to move up and down, and finally when the H4 is guaranteed to be H2, automatic focusing is completed; utilize luminance sensor to acquire ambient brightness in real time simultaneously, when the environmental requirement is not suitable for when shooing, automatically open the light filling device and carry out the luminance regulation operation as required, adjust the height of light filling device through controlling second automatic rising leveling device simultaneously, let the light of light filling device beat on the test piece in real time to this realizes auto focus and light filling operation.
Further, automatic operation is realized, the working efficiency is further improved, a plurality of complete photos can be stored in the data repository, and when the step S3 is compared with the stored photos, a picture with good definition and integrity is obtained by the computer controller to be used as a basic photo, and then the formal test can be started.
Furthermore, in the step S4, multiple photographing is required in the process of re-photographing at 5-minute intervals, and the re-photographing is stored in the data repository to replace the original photograph, so that the effects of focusing light and automatically supplementing light can be realized only by manually checking and operating the computer terminal, manual focusing is not required, the working time of test preparation can be further effectively shortened, and the test efficiency is improved.
Compared with the prior art, the invention has the following beneficial effects:
the automatic focusing and light supplementing device of the camera for the uniaxial compressive strength test, disclosed by the invention, is simple in overall structure and convenient to operate.
According to the automatic focusing and light supplementing method of the camera for the uniaxial compressive strength test, disclosed by the invention, the effects of focusing light and automatically supplementing light can be realized only by manually checking and operating the computer end when the uniaxial compressive test is carried out, manual focusing is not needed, the test preparation working time can be further effectively shortened, and the test efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of an auto-focusing and light-compensating device of a camera for uniaxial compressive strength test in embodiment 1;
FIG. 2 is a top view of an auto-focusing and light-compensating apparatus of a camera for uniaxial compressive strength test in example 1;
fig. 3 is a schematic structural diagram of a focusing and light supplementing integrated detection apparatus in embodiment 1;
fig. 4 is a schematic cross-sectional view of the endless track in embodiment 1.
In the figure: 1. an annular track; 2. a computer controller; 3. focusing and light supplementing integrated detection equipment; 4. a signal processor; 5. a first automatic lifting device; 6. an engineering camera; 7. a light supplement device; 8. a slider; 9. an automatic elongation device; 10. a light reminder; 11. a second automatic leveling device; 12. a test table; 13. a test piece placing table; 14. a first cylinder; 7-1, a brightness sensor; 15. a data repository; 6-1, an auto focus button; 16. focusing a starting key; 17. a first laser ranging sensor; 18. a second laser ranging sensor 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be fixedly, detachably, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the present invention can be specifically understood by those of ordinary skill in the art.
Example 1:
referring to fig. 1-4, an embodiment of the present invention is shown: the utility model provides an automatic focusing and light filling device of camera for unipolar compressive strength test, includes a test table 12 and a computer control ware 2, is provided with a test piece that is used for placing the test piece at the center of test table 12 and places platform 13, the bottom of test table 12 is provided with the first cylinder 14 that the platform 13 reciprocated is placed to the drive test piece, still is provided with on test table 12 and encircles an annular rail 1 that places the platform 13 outside at the test piece, its characterized in that, sliding connection has the integrative detection equipment 3 of the light filling of focusing more than one on annular rail 1, and each is focused the integrative detection equipment 3 of light filling and all includes following equipment:
a signal processor 4 which is connected with the computer controller 2 by signals and realizes the data transmission of the shape of the test piece transmitted by the computer;
the engineering camera 6 can clearly focus and level and can be controlled by the computer controller 2 to realize automatic focusing;
a light supplement device 7 capable of increasing and decreasing brightness;
wherein the lower part of the engineering camera 6 is electrically connected with the signal processor 4, the lower part of the signal processor 4 is connected with a first automatic lifting device 5, the lower part of the first automatic lifting device 5 is connected with a light supplementing device 7 which is electrically connected with the signal processor 4, a brightness sensor 7-1 which is electrically connected with the signal processor 4 and is used for detecting the ambient brightness is arranged above the light supplementing device 7, the lower part of the light supplementing device 7 is connected with a second automatic lifting and leveling device 11, the lower part of the second automatic lifting and leveling device 11 is connected on the annular track 1 in a sliding way, the first automatic lifting device 5 and the second automatic lifting and leveling device 11 are electrically connected with the computer controller 2, and the computer controller 2 is connected with a data repository 15 which is used for storing original photos of test pieces and size information of the test pieces, the engineering camera 6 is internally provided with a focusing start key 16 communicated with an automatic focusing button 6-1 of the engineering camera 6, the focusing start key 16 is electrically connected with the computer controller 2, the bottom of the engineering camera 6 is provided with a first laser ranging sensor 17 for ranging with the test table 12, the test piece placing table 13 is provided with a second laser ranging sensor 18 for measuring the height between the test piece placing table 13 and the test table 12, and the first laser ranging sensor 17 and the second laser ranging sensor 18 are both electrically connected with the computer controller 2.
The automatic focusing and light supplementing device of the camera for the uniaxial compressive strength test is simple in overall structure and convenient to operate.
In order to realize a wider detection range, the engineering camera 6 is configured to be capable of rotating 360 degrees horizontally.
Furthermore, in order to facilitate the operation and disassembly, two sliders 8 arranged at intervals are arranged below the second automatic lifting leveling device 11, each slider 8 is provided with an automatic extension device 9 capable of horizontally extending and retracting, the two automatic extension devices 9 are symmetrically arranged, the two automatic extension devices 9 are inserted into the annular track 1 to slide in the annular track 1, the automatic extension devices 9 are electrically connected with the computer controller 2 to realize the locking limiting or sliding state of the automatic extension devices 9 and the annular track 1 controlled by the computer controller 2, a clip is arranged inside the automatic extension devices 9, the clip can be automatically opened and closed when receiving a signal of the computer controller 2, the fixing effect is achieved, and the automatic extension devices 9 are an electric switch capable of extending out or closing, the automatic extending device 9 can extend to achieve a fixing effect when a fixing signal is received, the circuit is closed when the signal is withdrawn, the automatic extending device 9 can retract into the device and is not limited in the circular track 1, and finally the free movement of the second automatic lifting leveling device 11 is achieved.
As preferred, improve the comprehensiveness and the precision of detection, the integrative check out test set of light filling of focusing 3 total 4 to the equidistant setting of annular is on circular orbit 1, and 4 light filling heads of the integrative check out test set of light filling of focusing 3 and all towards circular orbit 1's central point to the head of focusing, in this implementation the integrative check out test set of light filling of focusing 3 total 4 of device, through the operation of computer end, the device can remove in circular orbit, the shooting condition of 4 devices can be looked over in real time to the computer end, makes things convenient for fixing device in circular orbit's position.
Further, as reminding, be provided with on signal processor 4 and carry out the light reminiscences 10 that reminds when signal processor 4 and computer controller 2 realize the intercommunication, light reminiscences 10 in this implementation adopts green light, at first open the switch of the engineering camera auto focus on four integrative check out test set 3 of light filling of focusing and light filling, open the computer end again, signal processor 4 light shows green glow presentation device and computer end and has connected and can normally work, the computer end can show 1, 2, 3, 4 signal sources, represent four integrative devices respectively, the video of the real-time shooting of the engineering camera on four integrative check out test set 3 of light filling of focusing can automatic transmission on the computer screen.
In the embodiment, the camera is an engineering camera, can focus clearly, can realize automatic focusing through control of a computer end, automatically monitors the position of the test piece through the signal processor 4, then realizes automatic focusing and automatic leveling through the computer end, and can rotate 360 degrees horizontally to find out the test shooting angle except for the leveling function.
The annular track 1, the camera, the light supplementing device and the signal processor 4 integrated device can be arranged in the annular track, the position of the device can be adjusted through a computer end, so that the device can move in the track, and the device can be fixed at an angle favorable for observing the damage of a test piece through the operation of the computer end.
When the system works, firstly, the switch of the engineering camera 6 on each focusing and light supplementing integrated detection device 3 is turned on, then the computer end of the computer controller 2 is turned on, at the moment, the signal processor 4 and the computer controller 2 are connected to work normally, and the corresponding signal source indications of the number of the signal processors 4 are displayed on the computer controller 2; the user takes a picture of the complete picture of the test piece to be tested in advance, obtains the height H1 of the test piece and stores the height H1 into the data repository 15 of the computer controller 2; at this time, the engineering camera 6 on each focusing and light supplementing integrated detection device 3 firstly takes a picture of the test piece, then the test piece is automatically transmitted to the computer controller 2 through the signal processor 4, the picture is displayed by the computer screen of the computer controller 2 and compared with the stored pictures, whether the picture is incomplete or not is judged, if the picture is incomplete, the automatic focusing processing is carried out, the data input and automatic focusing mode or the full automatic focusing mode is adopted, if the data input mode is adopted for automatic focusing, after the user inputs corresponding focusing adjustment data according to the shot picture on the computer end of the computer controller 2, the computer controller 2 acquires the focusing data and then sends the data to the signal processor 4, after the signal processor 4 acquires the data, the data is requested to the first automatic lifting device 5 according to the pre-stored focusing parameter table of the corresponding database, adjusting the automatic focusing position according to the determined requirement, carrying out real-time photographing processing, then comparing according to the picture comparison mode of the step S3, and implementing the replacement of focusing data by a user to finally reach the focusing requirement; meanwhile, the brightness sensor 7-1 is used for acquiring the ambient brightness in real time, when the environmental requirement is not suitable for photographing, the light supplementing device 7 is automatically started and brightness adjustment operation is carried out according to the requirement, and meanwhile, the second automatic lifting and leveling device 11 is controlled to adjust the height of the light supplementing device 7, so that the light of the light supplementing device 7 is emitted to the test piece in real time, and automatic focusing and light supplementing operation is realized; if a fully automatic focusing mode is required, the specific steps are as follows: firstly, a computer controller 2 acquires the height H1 of a test piece, an intermediate value is acquired, namely H1/2, then a second laser ranging sensor 18 is started to measure the height S of a test table 12 and a test piece placing table 13, then the height H2 from the center point of the test piece to the test table 12 is calculated to be H1/2+ S, then a first laser ranging sensor 17 is started to acquire the height H3 from the bottom of an engineering camera 6 to the test table 12, the height H4 from the focusing center point of a lens of the engineering camera 6 to the test table 12 is acquired to be H3+ half of the diameter of the lens, the first automatic lifting device 5 is controlled by the computer controller 2 to drive the lens of the engineering camera 6 to move up and down, and finally the H4 is guaranteed to be H2, namely automatic focusing is completed; meanwhile, the brightness sensor 7-1 is used for acquiring the ambient brightness in real time, when the environmental requirement is not suitable for photographing, the light supplementing device 7 is automatically started and brightness adjustment operation is carried out according to the requirement, meanwhile, the height of the light supplementing device 7 is adjusted by controlling the second automatic lifting and leveling device 11, so that the light of the light supplementing device 7 is emitted on the test piece in real time, automatic focusing and light supplementing operation is realized, if the photo is found to be complete, illumination at intervals of 5 minutes is carried out for retaking and is stored in a data repository to replace the original photo, and then focusing operation on the camera is continuously carried out, so that compared with the existing mode of carrying and adjusting the focusing through a manual photo taking support, the single-axis compression test can realize the functions of light focusing and automatic light supplementing by only needing to manually check and operate a computer end during the single-axis compression test, manual focusing is not needed, the test preparation working time can be further effectively shortened, and the test efficiency is improved.
In the embodiment, the signal processor 4 draws the shape of the test piece through the test piece photo acquired by the computer terminal, and transmits data through the signal processor 4, so that the engineering camera automatically finds the position of the test piece and focuses on the result, and manual operation steps are reduced; the light supplementing device 7 and the light supplementing device 7 can be directly operated at the computer end, data are transmitted through the signal processor 4, and the computer end sends a command to the signal processor 4 to receive the command, so that the brightness can be increased and reduced.
In this embodiment, the two lifting modes of the first automatic lifting device 5 and the second automatic lifting leveling device 11 are the same, the electric lifting column is a small hydraulic or pneumatic piston, and the principle is the cylinder piston principle in the prior art, such as a cylinder, a jack hydraulic oil, and the like, and belongs to the conventional technology, so the specific structure of how to lift is not described in detail.
The embodiment also discloses an automatic focusing and light supplementing method of the camera for the uniaxial compressive strength test, which comprises the automatic focusing and light supplementing device of the camera for the uniaxial compressive strength test, and the method specifically comprises the following steps:
s1, firstly, turning on a switch of the engineering camera 6 on each focusing and light supplementing integrated detection device 3, and then turning on a computer end of the computer controller 2, wherein the signal processor 4 and the computer controller 2 are connected to work normally, and the corresponding signal source indications of the number of the signal processors 4 are displayed on the computer controller 2;
s2, shooting by a user through a complete picture of a test piece to be tested in advance, acquiring the height H1 of the test piece, and storing the height H1 in the data repository 15 of the computer controller 2;
s3, firstly carrying out primary photographing processing on the test piece through the engineering camera 6 on each focusing and light supplementing integrated detection device 3, then automatically transmitting the processed test piece to the computer controller 2 through the signal processor 4, displaying the processed test piece by a computer screen of the computer controller 2, comparing the processed test piece with a stored photo, judging whether the photo is incomplete or not, and entering S5 if the photo is incomplete; if the photo is found to be complete, go to step S4;
s4, lighting every 5 minutes to take pictures again and store the pictures in a data repository to replace the original pictures, and returning to the step S3;
s5, performing automatic focusing processing, namely performing automatic focusing by adopting input data or adopting a full automatic focusing mode, and if the automatic focusing is performed by adopting the input data mode, performing S6; if the full auto-focus mode is selected, go to step S7;
s6, inputting corresponding focusing adjustment data by a user on a computer end of the computer controller 2 according to a shot photo, acquiring the focusing data by the computer controller 2, sending the data to the signal processor 4, acquiring the data by the signal processor 4, sending the data to the first automatic lifting device 5 according to the requirement of a pre-stored focusing parameter table of a corresponding database, adjusting the automatic focusing position of the first automatic lifting device according to the determined requirement, carrying out real-time photographing processing, then comparing the data according to the picture comparison mode of the step S3, replacing the focusing data by the user, and finally achieving the focusing requirement; meanwhile, the brightness sensor 7-1 is used for acquiring the ambient brightness in real time, when the environmental requirement is not suitable for photographing, the light supplementing device 7 is automatically started and brightness adjustment operation is carried out according to the requirement, and meanwhile, the second automatic lifting leveling device 11 is controlled to adjust the height of the light supplementing device 7, so that the light of the light supplementing device 7 is emitted to the test piece in real time, and automatic focusing and light supplementing operation is achieved;
s7, the first computer controller 2 obtains the height H1 of the test piece, and obtains an intermediate value, that is, H1/2, then the second laser ranging sensor 18 is started to measure the height value S of the test table 12 and the test piece placing table 13, then the height H2 from the center point of the test piece to the test table 12 is calculated to be H1/2+ S, then the first laser ranging sensor 17 is started to obtain the height value H3 from the bottom of the engineering camera 6 to the test table 12, and the height H4 from the focusing center point of the lens of the engineering camera 6 to the test table 12 is obtained by the computer controller 2 to be one half of the diameter of the H3+ lens, and the computer controller 2 is used to control the first automatic lifting device 5 to drive the lens of the engineering camera 6 to move up and down, and finally when the height H4 is ensured to be H2, that the automatic focusing is completed; meanwhile, the brightness sensor 7-1 is used for acquiring the ambient brightness in real time, when the environmental requirement is not suitable for photographing, the light supplementing device 7 is automatically started and brightness adjustment operation is carried out according to the requirement, and meanwhile, the height of the light supplementing device 7 is adjusted by controlling the second automatic lifting and leveling device 11, so that the light of the light supplementing device 7 is emitted to the test piece in real time, and automatic focusing and light supplementing operation are achieved.
The invention further realizes the functions of focusing light and automatically supplementing light only by manually checking and operating the computer end without manually focusing, thereby further effectively shortening the working time of test preparation and improving the test efficiency.
Further, automatic operation is realized, the working efficiency is further improved, a plurality of complete photos can be stored in the data repository, and when the step S3 is compared with the stored photos, the computer controller 2 can start formal tests after acquiring a picture with good definition and integrity as a basic photo.
Furthermore, in the step S4, multiple photographing is required in the process of re-photographing at 5-minute intervals, and the re-photographing is stored in the data repository to replace the original photograph, so that the effects of focusing light and automatically supplementing light can be realized only by manually checking and operating the computer terminal, manual focusing is not required, the working time of test preparation can be further effectively shortened, and the test efficiency is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides an automatic focusing and light filling device of camera for unipolar compressive strength test, includes a test table face (12) and a computer control ware (2), is provided with a test piece that is used for placing the test piece at the center of test table face (12) and places platform (13), the bottom of test table face (12) is provided with first cylinder (14) that drive test piece placed platform (13) and reciprocated, still is provided with one circular orbit (1) around the test piece places platform (13) outside on test table face (12), its characterized in that, sliding connection has more than one integrative check out test set of light filling of focusing (3) on circular orbit (1), and each is focused integrative check out test set of light filling (3) and all includes following equipment:
a signal processor (4) which is in signal connection with the computer controller (2) and realizes data transmission of the shape of the test piece transmitted by the computer;
the engineering camera (6) can clearly focus and level and can be controlled by the computer controller (2) to realize automatic focusing;
a light supplement device (7) capable of increasing and decreasing the brightness;
the system comprises a signal processor (4), an engineering camera (6), a first automatic lifting device (5), a light supplementing device (7) electrically connected with the signal processor (4), a brightness sensor (7-1) electrically connected with the signal processor (4) and used for detecting the ambient brightness, a second automatic lifting and leveling device (11) connected with the light supplementing device (7), a computer controller (2), and data (15) for storing original test piece photos and test piece size information, wherein the lower part of the engineering camera (6) is electrically connected with the signal processor (4), the lower part of the first automatic lifting and leveling device (5) is connected with the light supplementing device (7) electrically connected with the signal processor (4), the lower part of the second automatic lifting and leveling device (11) is slidably connected to the annular track (1) in a storage warehouse, the first automatic lifting and leveling device (5) and the second automatic lifting and leveling device (11) are electrically connected with the computer controller (2), and the computer controller (2) is connected with the data (15) for storing the original test piece photos and the test piece size information The automatic focusing device comprises an engineering camera (6), and is characterized in that a focusing start key (16) communicated with an automatic focusing button (6-1) of the engineering camera (6) is arranged in the engineering camera (6), the focusing start key (16) is electrically connected with a computer controller (2), a first laser ranging sensor (17) for ranging with a test table top (12) is arranged at the bottom of the engineering camera (6), a second laser ranging sensor (18) for measuring the height between the test piece placing table (13) and the test table top (12) is arranged on the test piece placing table (13), and the first laser ranging sensor (17) and the second laser ranging sensor (18) are both electrically connected with the computer controller (2).
2. The automatic focusing and light supplementing device of the camera for the uniaxial compressive strength test according to claim 1, which is characterized in that: the engineering camera (6) is a structure capable of rotating 360 degrees horizontally.
3. The automatic focusing and light supplementing device of the camera for the uniaxial compressive strength test according to claim 1, which is characterized in that: the below of second automatic rising leveling device (11) is provided with slider (8) that two intervals set up, is provided with on each slider (8) can the level flexible automatic elongation device (9), and two automatic elongation device (9) symmetry set up, and two automatic elongation device (9) are pegged graft and are realized sliding in circular orbit (1) on circular orbit (1), just automatic elongation device (9) be connected the realization with computer control ware (2) electricity and be controlled the locking of automatic elongation device (9) and circular orbit (1) spacing or the slip state.
4. The automatic focusing and light supplementing device of the camera for the uniaxial compressive strength test according to claim 1, which is characterized in that: the focusing and light supplementing integrated detection equipment (3) is 4 in number, the annular detection equipment is arranged on the annular track (1) at equal intervals, and the 4 light supplementing heads of the focusing and light supplementing integrated detection equipment (3) and the focusing heads face the central point of the annular track (1).
5. The automatic focusing and light supplementing device of the camera for the uniaxial compressive strength test according to claim 1, which is characterized in that: and a light reminder (10) for reminding when the signal processor (4) is communicated with the computer controller (2) is arranged on the signal processor (4).
6. An automatic focusing and light supplementing method of a camera for a uniaxial compressive strength test, which comprises the step of adopting the automatic focusing and light supplementing device of the camera for the uniaxial compressive strength test, which is disclosed by any one of claims 1 to 5, and is characterized in that: the method specifically comprises the following steps:
s1, firstly, turning on a switch of an engineering camera (6) on each focusing and light supplementing integrated detection device (3), and then turning on a computer end of a computer controller (2), wherein the signal processor (4) and the computer controller (2) are connected to work normally, and signal source indications corresponding to the number of the signal processors (4) are displayed on the computer controller (2);
s2, shooting by a user through a complete picture of a test piece to be tested in advance, acquiring the height H1 of the test piece, and storing the height H1 in a data repository (15) of the computer controller (2);
s3, firstly carrying out primary photographing processing on the test piece through the engineering camera (6) on each focusing and light supplementing integrated detection device (3), then automatically transmitting the processed results to the computer controller (2) through the signal processor (4), displaying the results by a computer screen of the computer controller (2), comparing the results with stored photos, judging whether the photos are incomplete or not, and entering S5 if the photos are incomplete; if the photo is found to be complete, go to step S4;
s4, lighting every 5 minutes to take pictures again and store the pictures in a data repository to replace the original pictures, and returning to the step S3;
s5, entering automatic focusing, adopting a mode of inputting data and carrying out automatic focusing or adopting a full automatic focusing mode, and entering S6 if adopting the mode of inputting data to carry out automatic focusing; if the full auto-focus mode is selected, go to step S7;
s6, after a user inputs corresponding focusing adjustment data on a computer end of the computer controller (2) according to a shot photo, the computer controller (2) acquires the focusing data and sends the focusing data to the signal processor (4), the signal processor (4) acquires the data and sends the data to the first automatic lifting device (5) according to the requirement of a pre-stored focusing parameter table of a corresponding database, the automatic lifting device adjusts the automatic focusing position according to the determined requirement and carries out real-time photographing processing, then the automatic lifting device is compared according to the picture comparison mode of the step S3, the user replaces the focusing data, and finally the focusing requirement is met; meanwhile, a brightness sensor (7-1) is used for acquiring the ambient brightness in real time, when the environmental requirement is not suitable for photographing, the light supplementing device (7) is automatically started and brightness adjustment operation is carried out according to the requirement, and meanwhile, the height of the light supplementing device (7) is adjusted by controlling the second automatic lifting leveling device (11), so that the light of the light supplementing device (7) is emitted to the test piece in real time, and automatic focusing and light supplementing operation is achieved;
s7, the preferred computer controller (2) obtains the height H1 of the test piece, and obtains the intermediate value H1/2, then a second laser ranging sensor (18) is started to measure the height value S of the test table top (12) and the test piece placing table (13), then the height H2 from the center point of the test piece to the test table top (12) is calculated to be H1/2+ S, then, the first laser ranging sensor (17) is started to acquire the height value H3 of the bottom of the engineering camera (6) and the test table top (12), and the height H4 from the focusing center point of the lens of the engineering camera (6) to the test table top (12) is obtained by the computer controller (2) as one half of the diameter of the lens H3+, the first automatic lifting device (5) is controlled by the computer controller (2) to drive the lens of the engineering camera (6) to move up and down, and automatic focusing is finished when H4 is equal to H2; meanwhile, the brightness sensor (7-1) is used for acquiring the ambient brightness in real time, when the environmental requirement is not suitable for photographing, the light supplementing device (7) is automatically started and brightness adjustment operation is carried out according to the requirement, and meanwhile, the height of the light supplementing device (7) is adjusted by controlling the second automatic lifting leveling device (11), so that the light of the light supplementing device (7) is emitted to the test piece in real time, and automatic focusing and light supplementing operation are achieved.
7. The method of claim 6, wherein the method comprises the steps of: several complete pictures can be stored in the data repository, and when step S3 is compared with the stored pictures, a picture with good definition and integrity is obtained by the computer controller (2) as a basic picture, and then the formal test can be started.
8. The method of claim 6, wherein the method comprises the steps of: in the step S4, the lighting retakes are performed every 5 minutes, and the photographs are stored in the data repository to replace the original photographs.
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