CN113654810A - Projection device and test stake placing method adopting same - Google Patents
Projection device and test stake placing method adopting same Download PDFInfo
- Publication number
- CN113654810A CN113654810A CN202110863223.0A CN202110863223A CN113654810A CN 113654810 A CN113654810 A CN 113654810A CN 202110863223 A CN202110863223 A CN 202110863223A CN 113654810 A CN113654810 A CN 113654810A
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- slide
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- projection
- additional information
- stake
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones
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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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
-
- 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
- G03B23/00—Devices for changing pictures in viewing apparatus or projectors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Projection Apparatus (AREA)
Abstract
The invention provides a projection device and a test stake placing method adopting the same, which are used for improving the placing efficiency and accuracy of test stakes in a vehicle test for stability and stability. The projection device comprises a base and a projection mechanism movably arranged on the base through a lifting mechanism, wherein the projection mechanism comprises a pitching adjusting mechanism and a projection lens arranged on the pitching adjusting mechanism. The invention adopts the projection device to position the test stake, firstly, a slide with a test stake placing diagram is placed into the projection device, then the position of the projection device, the height and the pitching angle of the projection lens are adjusted, the projection lens is utilized to project the test stake placing diagram on the slide in a preset range of a test field, parameters such as stake position and distance between stake barrels on the test stake placing diagram projected on the test field meet the test requirements, and then the test stake is placed on the test field according to the projected test stake placing diagram.
Description
Technical Field
The invention belongs to the technical field of automobile testing, and particularly relates to a device and a method for a vehicle stability operation test.
Background
The stability control vehicle test is a test in a stability control test field according to different vehicle test contents, and comprises a plurality of tests, such as: elk test, snakelike examination, two line test etc. all need put out the test route of different shapes with stake bucket in the place according to different experimental contents. The pile barrel is placed with strict distance and positioning requirements, and the traditional method is to use general measuring tools such as tape gauges and the like, and a plurality of people cooperate to measure the distance, so that time and labor are wasted, and large errors are caused. Therefore, the development of a device and a method which are beneficial to improving the test stake placing efficiency and accuracy is urgently needed.
Disclosure of Invention
The invention aims to provide a projection device and a test stake placing method adopting the projection device, so that the placing efficiency and the placing accuracy of a test stake in a vehicle test for stabilizing operation are improved.
The projection device comprises a base and a projection mechanism movably arranged on the base through a lifting mechanism, wherein the projection mechanism comprises a pitching adjusting mechanism and a projection lens arranged on the pitching adjusting mechanism.
The method for placing the test stake adopts the projection device to position the test stake, firstly, a slide with a test stake placing diagram is placed into the projection device, then, the position of the projection device, the height and the pitching angle of a projection lens are adjusted, the test stake placing diagram on the slide is projected in a preset range of a test field by using the projection lens, parameters such as the stake position on the test stake placing diagram projected on the test field, the distance between stake barrels and the like meet the test requirements, and then, the test stake is placed on the test field according to the projected test stake placing diagram. Because the relative position of each test stake in the slide test stake placement diagram is fixed, a tester can adjust while measuring, and as long as the relative positions of two test stakes projected on a test field meet test requirements, the positions of all test stakes projected on the test field also meet the requirements, so that the specific positions of each test stake do not need to be measured one by one, the placement efficiency is greatly improved, and the placement position precision is ensured.
Further, elevating system is equipped with the altitude scale that is used for showing projection lens height, every single move is adjusted the structure and is equipped with the angle of pitch scale that is used for showing projection lens every single move angle. Parameters such as the ground clearance and the pitching angle of the projection lens are designed and calculated in advance, a tester can put the projection device at a preset position in advance, and then adjust the lifting mechanism and the pitching adjusting mechanism according to the height scale and the pitching angle scale, so that the positions of all the test stakes projected on the test site are ensured to meet the test requirements on the premise of not specifically measuring the test stakes projected on the test site. According to the projection principle, the light source of the projection lens, the projection graph on the slide and the graph projected on the test site are in a simple proportional relation, and as long as the position of the projection device is accurate, the ground clearance and the pitching angle of the projection lens are accurate, the accuracy of the graph projected on the test site can be ensured, which is needless to say, the calculation can be specifically carried out according to the geometric principle, and the description is omitted here.
The projector further includes a slide identification module for identifying slide additional information, and the slide identification module automatically controls the operation of the elevating mechanism and the tilt adjusting mechanism based on the slide additional information so that the projection lens projects at a height and a tilt angle specified by the slide additional information. Correspondingly, the slide has additional information, and the additional information comprises projection height information and pitching angle information corresponding to the test stake placing diagram in the slide; before a slide is put into the projection apparatus, the slide recognition module reads the additional information of the slide, and after the slide is put into the projection apparatus, the slide recognition module automatically controls the operation of the elevating mechanism and the tilt adjusting mechanism based on the additional information of the slide so that the projection lens projects the slide at the height and the tilt angle specified by the additional information of the slide.
Setting additional information on the slide, for example, making a corresponding label on the slide, and after the slide identification module identifies the label, automatically reading the corresponding information which is pre-stored in a memory of the slide identification module, wherein the information is the additional information of the slide; of course, the additional information may be recorded on the slide by means of a two-dimensional code or the like, and the slide recognition module may directly read the additional information. The slide recognition module automatically controls projection work according to the additional information, so that the labor load of manpower can be greatly reduced, the projection adjusting speed is increased, and the test stake placing efficiency is improved. The structures and automatic adjustment principles of the lifting mechanism and the pitching adjustment mechanism can refer to relevant mechanisms of a shooting pan-tilt head, which are already the prior art, and are not described herein again.
Furthermore, the base of the projection device is movably erected on the horizontal guide rail through the horizontal driving mechanism, and the slide identification module automatically controls the action of the horizontal driving mechanism according to the additional information of the slide so that the projection lens projects on the position specified by the additional information of the slide. Correspondingly, the additional information also comprises horizontal position information corresponding to the test stake placing chart in the slide, the additional information of the slide is firstly read by using the slide identification module before the slide is placed in the projection device, and after the slide is placed in the projection device, the slide identification module automatically controls the action of the horizontal driving mechanism according to the additional information of the slide, so that the projection lens projects on the position specified by the additional information of the slide.
The projection device and the method are suitable for the condition that the field required by the test is large, under the condition, one slide cannot record the positions of all the test stakes, namely, the projection device cannot project all the positions of the test stakes on the test field at one time, only the test stake placing picture can be spliced and displayed by using a plurality of slides, during projection, only part of the test stake placing pictures on the plurality of slides can be sequentially projected on the test field, after the corresponding test stakes on one slide are placed, the next slide is replaced, at the moment, the projection device automatically controls the action of the horizontal driving mechanism according to the additional information on the newly replaced slide, moves the position of the projection device, so that the projection lens projects on the position specified by the additional information of the slide, and realizes the perfect butt joint of the test stake placing pictures on the test field, and analogizing until all the test stakes are placed.
The invention utilizes the projection principle to assist in placing the test stake, can quickly and accurately place the test stake at a proper position, and finishes the preparation work of the test stake for operating and stabilizing the vehicle test.
Drawings
Fig. 1 is a schematic structural diagram of a projection apparatus according to embodiment 1.
The figures are numbered: 1. a base; 2. a lifting mechanism; 3. a pitch adjustment mechanism; 4. and a projection lens.
Detailed Description
The following describes embodiments of the present invention, such as shapes and structures of respective members, mutual positions and connection relationships between respective portions, and actions and operation principles of the respective portions, in further detail, with reference to the accompanying drawings.
Example 1:
the embodiment provides a projection device and a test stake placing method adopting the same, so that placing efficiency and accuracy of a test stake in a vehicle test for stabilizing operation are improved, a lifting mechanism is provided with a height scale for displaying the height of a projection lens, and a pitching adjusting structure is provided with a pitching angle scale for displaying the pitching angle of the projection lens.
As shown in fig. 1, the projection apparatus of the present embodiment includes a base 1 and a projection mechanism movably mounted on the base 1 through a lifting mechanism 2, wherein the projection mechanism includes a pitching adjustment mechanism 3 and a projection lens 4 mounted on the pitching adjustment mechanism.
In this embodiment, the projection device is used to position the test stake, the slide with the test stake placing diagram is first placed in the projection device, then the position of the projection device, the height and the pitch angle of the projection lens are adjusted, the projection lens is used to project the test stake placing diagram on the slide in a predetermined range of the test site, parameters such as the stake position on the test stake placing diagram projected on the test site and the distance between stake barrels meet the test requirements, and then the test stake is placed on the test site according to the projected test stake placing diagram.
Above-mentioned projecting lens 'terrain clearance, pitch angle isoparametric all are through designing in advance and calculating, testing personnel can put projection arrangement in predetermined position in advance, then adjust elevating system and every single move adjustment mechanism according to above-mentioned altitude scale, pitch angle scale, need not to carry out specific measuring's prerequisite to throwing the experimental stake of mark on experimental place under, just guarantee to throw the position of all experimental stakes on experimental place and all accord with experimental requirement, put efficiency has been improved greatly, and the position precision of putting has been guaranteed.
Example 2:
unlike embodiment 1, the projector according to the present embodiment is provided with a slide recognition module for recognizing slide additional information, and the slide recognition module automatically controls the operation of the elevating mechanism and the tilt adjusting mechanism based on the slide additional information so that the projection lens projects at a height and a tilt angle specified by the slide additional information. Correspondingly, the slide has additional information, and the additional information comprises projection height information and pitching angle information corresponding to the test stake placing diagram in the slide; before a slide is put into the projection apparatus, the slide recognition module reads the additional information of the slide, and after the slide is put into the projection apparatus, the slide recognition module automatically controls the operation of the elevating mechanism and the tilt adjusting mechanism based on the additional information of the slide so that the projection lens projects the slide at the height and the tilt angle specified by the additional information of the slide.
Setting additional information on the slide, for example, making a corresponding label on the slide, and after the slide identification module identifies the label, automatically reading the corresponding information which is pre-stored in a memory of the slide identification module, wherein the information is the additional information of the slide; of course, the additional information may be directly recorded on the slide by means of a two-dimensional code or the like, and the slide recognition module may directly read the additional information. The slide recognition module automatically controls projection work according to the additional information, so that the labor load of manpower can be greatly reduced, the projection adjusting speed is increased, and the test stake placing efficiency is improved. The structures and automatic adjustment principles of the lifting mechanism and the pitching adjustment mechanism can refer to relevant mechanisms of a shooting pan-tilt head, which are already the prior art, and are not described herein again.
Example 3:
unlike embodiment 2, in this embodiment, the base of the projection apparatus is movably mounted on the horizontal rail by the horizontal driving mechanism, and the slide recognition module automatically controls the operation of the horizontal driving mechanism according to the additional information of the slide so that the projection lens projects the slide at the position specified by the additional information of the slide. Correspondingly, the additional information also comprises horizontal position information corresponding to the test stake placing chart in the slide, the additional information of the slide is firstly read by using the slide identification module before the slide is placed in the projection device, and after the slide is placed in the projection device, the slide identification module automatically controls the action of the horizontal driving mechanism according to the additional information of the slide, so that the projection lens projects on the position specified by the additional information of the slide.
The projection device and the method are suitable for the condition that the field required by the test is large, under the condition, one slide cannot record the positions of all the test stakes, namely, the projection device cannot project all the positions of the test stakes on the test field at one time, only the test stake placing picture can be spliced and displayed by using a plurality of slides, during projection, only part of the test stake placing pictures on the plurality of slides can be sequentially projected on the test field, after the corresponding test stakes on one slide are placed, the next slide is replaced, at the moment, the projection device automatically controls the action of the horizontal driving mechanism according to the additional information on the newly replaced slide, moves the position of the projection device, so that the projection lens projects on the position specified by the additional information of the slide, and realizes the perfect butt joint of the test stake placing pictures on the test field, and analogizing until all the test stakes are placed.
The invention has been described in connection with the accompanying drawings, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description, as long as the invention is capable of being practiced without modification in any way whatsoever, and is capable of other applications without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A projection device is characterized by comprising a base and a projection mechanism movably arranged on the base through a lifting mechanism, wherein the projection mechanism comprises a pitching adjusting mechanism and a projection lens arranged on the pitching adjusting mechanism.
2. The projection apparatus as claimed in claim 1, wherein the elevating mechanism is provided with a height scale for displaying the height of the projection lens, and the pitch adjusting mechanism is provided with a pitch angle scale for displaying the pitch angle of the projection lens.
3. The projection apparatus according to claim 2, wherein the projection apparatus is provided with a slide recognition module for recognizing additional information of the slide, and the slide recognition module automatically controls the operation of the elevation mechanism and the tilt adjustment mechanism based on the additional information of the slide so that the projection lens projects at a height and a tilt angle specified by the additional information of the slide.
4. The projection device of claim 3, wherein the base of the projection device is movably mounted on the horizontal guide rail by a horizontal driving mechanism, and the slide recognition module automatically controls the operation of the horizontal driving mechanism according to the additional information of the slide so that the projection lens projects the slide at the position specified by the additional information of the slide.
5. A method for arranging the test piles is characterized in that the projection device of claim 1 is used for positioning the test piles, firstly, a slide with a test pile arrangement diagram is put into the projection device, then, the position of the projection device, the height and the pitching angle of a projection lens are adjusted, the projection lens is used for projecting the test pile arrangement diagram on the slide to a preset range of a test field, parameters such as pile positions on the test pile arrangement diagram projected on the test field and the distance between pile barrels meet the test requirements, and then the test piles are arranged on the test field according to the projected test pile arrangement diagram.
6. The method of claim 5, wherein the slide has additional information including projection height information and pitch angle information corresponding to a test stake map in the slide; before a slide is put into the projection apparatus, the slide recognition module reads the additional information of the slide, and after the slide is put into the projection apparatus, the slide recognition module automatically controls the operation of the elevating mechanism and the tilt adjusting mechanism based on the additional information of the slide so that the projection lens projects the slide at the height and the tilt angle specified by the additional information of the slide.
7. The method of claim 6, wherein the additional information further includes horizontal position information corresponding to a test stake map in the slide, the additional information of the slide is first read by the slide recognition module before the slide is set in the projection apparatus, and the slide recognition module automatically controls the operation of the horizontal driving mechanism according to the additional information of the slide after the slide is set in the projection apparatus, so that the projection lens projects the slide at a position specified by the additional information of the slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110863223.0A CN113654810B (en) | 2021-07-29 | 2021-07-29 | Projection device and test stake placing method adopting same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110863223.0A CN113654810B (en) | 2021-07-29 | 2021-07-29 | Projection device and test stake placing method adopting same |
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| CN113654810A true CN113654810A (en) | 2021-11-16 |
| CN113654810B CN113654810B (en) | 2022-11-29 |
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