CN110111672B - Automatic sand table and method for presenting topography by using same - Google Patents
Automatic sand table and method for presenting topography by using same Download PDFInfo
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- CN110111672B CN110111672B CN201910347463.8A CN201910347463A CN110111672B CN 110111672 B CN110111672 B CN 110111672B CN 201910347463 A CN201910347463 A CN 201910347463A CN 110111672 B CN110111672 B CN 110111672B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
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Abstract
The present invention relates to an automatic sand table of variable topography and a method of rendering topography using an automatic sand table. The automatic sand table comprises a base, an elevation module, a Gao Chengding liter, a flat pushing device, an LED lamp, an elastic cloth, a control unit and the like, and forms simulated terrain so as to form the terrain to be presented rapidly. The base is used for fixing the elevation module, gao Chengding liters, covering cloth and supporting the whole device. The elevation modules are orderly arranged in a matrix form and fixed on the base. The elevation module consists of an elevation rod and a positioning device. The extending distance of the height rod in a certain elevation module is the elevation of the sand table at the point. All height bars are pushed to the corresponding height by one or a group of height Cheng Ding liters. Gao Chengding liter is formed by electric putter and push rod position detector to promote the altitude pole of altitude module and carry out the altitude demarcation. The invention can rapidly and accurately display terrains with different scales, and meets the use requirement of the sand table in modern military or non-military operations.
Description
Technical Field
The invention relates to a terrain display device, in particular to an automatic sand table and a method for displaying terrain by using the same.
Background
The sand table is an important auxiliary tool for commander to command combat, exercise, rescue, etc. The timely and accurate sand table supply is particularly important before the task comes. However, most of the sand tables used in practical work and training and exercise are piled up manually with sand, and are also molded by using equipment. The manual piled sand table is time-consuming and labor-consuming to manufacture and has lower precision; the sand table manufactured by using the device die pressing has high precision, but has long manufacturing period and high manufacturing cost, and has the defects of fixed display content, insufficient flexibility, inconvenient carrying and the like. At present, a holographic projection sand table is also used, the display mode is flexible and changeable, but the holographic projection sand table is completely completed based on an optical image technology, and is not suitable for the situation that a plurality of people are enclosed together to perform pointing, discussion, explanation and the like in practical application. Therefore, it is difficult for these common sand table making techniques to meet the needs of modern military or non-military operations.
For this reason, some patent technologies have attempted to improve or solve this problem, and are mainly classified into three types, namely, improvement of detail display technology, pure digital virtual sand table and physical dynamic sand table.
The first type is an improvement of the display method, including the following patents:
CN201110450462X discloses a touch type digital linkage sand table. The invention comprises a sand table entity and a digital linkage system, wherein the digital linkage system comprises a camera, a video acquisition card connected with the camera, and an industrial control computer and a display screen connected with the camera; in this way, details of the sand table may be displayed by the video system in the display screen. However, such an invention only adds detail to the presentation of the physical sand table and does not aid in the construction of the sand table itself.
CN2013104316244 discloses an electronic sand table system and method. The invention relates to an electronic sand table system, which mainly comprises a plurality of columnar display units to form a display matrix so as to simulate the colors and textures of terrains and ground objects. Although the effect is vivid, the stereoscopic impression is strong. However, after all, the control is complex, the requirements on the use environment are high, and the method cannot be suitable for severe environments.
The second type is a digital sand table, which includes the following patents:
CN2012101802123 discloses a three-dimensional electronic sand table device, which is implemented by means of a 3D projector, 3D glasses and the like through the invention of a three-dimensional digital sand table of a 3D display screen and the like. In fact, the technology is the application of the virtual reality technology in the sand table manufacturing field, so that the technology can realistically display the digital sand table with the stereoscopic effect in a multimedia information processing mode, and the advantages and disadvantages of the holographic projection sand table are basically the same as those of the holographic projection sand table.
CN2006100430664 discloses a spatial three-dimensional sand table. The invention relates to a three-dimensional sand table based on optical fiber combination, which uses optical fiber arrays with different lengths to display a 3D voxel image with spatial distribution on an optical fiber output port. Although the shape of the sand table can be changed at any time, the sand table is a topographic profile formed by the light spot array, which is far from a solid sand table in sense, and is difficult to apply to practical fields such as military.
The third type is an entity dynamic sand table, including the following patents:
CN2010102360037 discloses a dynamic sand table. The invention is characterized in that the terrain unit array is established, and the terrain unit is lifted or contracted in a chain transmission or hydraulic transmission mode, so that the characteristics of corresponding terrain are represented.
CN2015109769911 discloses a three-dimensional digital sand table standard module, which relates to a standard module capable of assembling digital sand tables. By assembling and controlling the sand table module, the desired terrain or image is displayed.
CN2017101493495 discloses a teaching sand table, which comprises a bottom layer as a fixed layer, a top layer with elasticity, and a plurality of driving mechanisms such as oil cylinders, air cylinders, pistons and the like arranged between the bottom layer and the top layer. The top layer is driven by the driving mechanism to carry out concave-convex change relative to the layer, so as to simulate the fluctuation of the terrain.
However, the three types of sand tables have a common problem in that the mechanical structure is complicated, and it is difficult to make the size of each unit small. Therefore, the whole sand table needs to have a large area, or the terrain units are too few, so that the accuracy of the sand table is difficult to improve.
CN2014102179001 discloses an intelligent sand table based on magnetorheological cement. The invention uses advanced magneto-rheological technology, and controls the surface morphology of magneto-rheological cement by a magnetic field generating device to form the sand table. It has the advantages of good reversibility, reusability and quick construction and withdrawal. However, the biggest problem is that the simulation device is very suitable for the gentle fluctuation of terrains, and has poor simulation effect on steep cliffs, deep valleys and other terrains.
Disclosure of Invention
The invention aims to provide an automatic sand table and a method for presenting terrains by using the same so as to meet the use requirements of the sand table in terms of timeliness, accuracy, portability and the like in modern military and non-military operations.
The invention is realized in the following way: an automated sand table comprising:
the elevation module comprises a shell, an elevation rod and a positioning mechanism for positioning the elevation rod; the shell is in a quadrangular shape and is provided with a core hole which penetrates up and down; the positioning mechanism is a ball collision clamping mechanism facing the core hole, which is arranged in the shell; the height rod is connected in the core hole in a penetrating way to serve as a terrain elevation piece in the sand table, a plurality of annular grooves which are distributed at equal intervals are distributed on the rod body of the height rod, and the collision beads are matched with the annular grooves, so that the height rod is positioned in the core hole of the shell;
the base is used for bearing an elevation module array formed by closely arranging a plurality of elevation modules in a matrix;
gao Chengding liters, including electric pushers and pushbar status sensors; the electric push rod is used for pushing the height rod in the elevation module above the electric push rod to a set height, and the push rod state sensor is used for detecting the pushing height of the electric push rod;
the translation mechanism is used for pushing the high Cheng Ding lifter to move below any elevation module in the elevation module array;
the LED lamps are multicolor light-emitting diodes and are arranged at the upper ends of the height rods and are used for displaying the heights of the height rods in different brightness colors, so that the LED lamps at the same height form a luminous contour line with the LED lamps at other heights; and
the elastic cloth is made of a semi-transparent and high-elasticity textile material and covers the top surface of the elevation module array to form a ground pattern on the sand table.
The automatic sand table of the invention further comprises:
the control unit is electrically connected with the LED lamp, the electric push rod, the push rod state sensor and the translation mechanism and is used for converting the topographic map information input by the upper computer into point coordinate information, protruding height information and color information at the corresponding position on the automatic sand table, controlling the height Cheng Dingsheng device to translate to the corresponding position, pushing the height rod in the height module at the position to lift the height rod to the corresponding height, and simultaneously controlling the lighting and the lighting color of the LED lamp at the upper end of the height rod; and
and the data transmission system is used for converting map data transmitted by the upper computer into control signals for the automatic sand table, and transmitting the position information of the translation mechanism and the push rod extension length data detected by the push rod state sensor to the control unit for positioning the high Cheng Ding liter and fixing the height of the elevation module.
An overhead layer is provided between the elevation module array and the base, and the Gao Chengding elevator and the translation mechanism are disposed in the overhead layer.
The elevation module array can also be arranged on the supporting plate of the base, the Gao Chengding lifter and the translation mechanism are arranged at the bottom of the base, and through holes which are vertically opposite to the core holes of the elevation modules in the elevation module array are distributed on the plate surface of the supporting plate of the base.
The Gao Chengding elevator in the invention can be a single body which independently acts on one elevation module at a time to perform the ejection operation of the single module.
The Gao Chengding lifter of the invention can also be a composite body formed by combining at least two unit bodies forming an array, and can act on a corresponding number of elevation modules in an array mode each time to synchronously push a plurality of elevation modules.
When the Gao Chengding lifter moves to the position below one elevation module in the elevation module array, the electric push rod is used for pushing the elevation rod in the elevation module at the position point to be lifted to the height corresponding to the topographic map information parameter index. The lifting height of the electric push rod can accurately reflect the lifting height of the height rod in the elevation module at the position point. The height rods in all the elevation modules in the elevation module array are pushed one by one, so that all the height rods in the elevation module array on the chassis can reach the height marked by the topographic parameters, the elastic covering cloth is pushed by the height rods to display the input topographic features, and the contour lines with different elevations can be displayed on the elastic covering cloth by the different lighting colors of the LED lamps on the height rods. The control unit is used for receiving the topographic map information input by the upper computer, processing the coordinates, the elevation and the color information of the LED lamps of the corresponding points on the map according to the elevation module array, and controlling the lifting height of the elevation rod and the lighting color of the LED lamps in the elevation module at each position after outputting the corresponding control signals.
The invention can also be realized as follows: the invention relates to a method for displaying terrain by utilizing an automatic sand table, which is characterized in that pre-displayed terrain map information is input into a control unit of the automatic sand table, the pre-displayed terrain map information is converted into point coordinate information, protruding height information and lighting and color information of an LED lamp of each elevation module in an elevation module array by the control unit, a translation mechanism pushes a height Cheng Ding liter to move to the lower part of the elevation module under the control of the control unit, and a Gao Chengding liter pushes a height rod in the elevation module at the position to rise to a height corresponding to the control information according to the position, the height and the lighting information given by the control unit, and the lighting color of the LED lamp at the upper end of the height rod are controlled; the height rods in each elevation module are pushed one by one, so that all the height rods reach the height marked by the topographic map information, the elastic covering cloth is pushed by the lifting of the height rods to display the input topographic features, and continuous lines formed by the LED lamps with the same lighting color form the contour line of a certain elevation.
The automatic sand table realizes the construction of the topography of the sand table body by adopting a brand new mode, has simple structure and convenient use and reconstruction, can rapidly and accurately display different terrains with different scales, and meets the use requirements of the sand table on timeliness, accuracy, portability and the like in modern military or non-military operations.
Drawings
FIG. 1 is a schematic view of the construction of an automatic sand table of the present invention.
Fig. 2 is a schematic diagram of the structure of the elevation module.
FIG. 3 is a schematic view of the positioning mechanism in the elevation module.
Fig. 4 is a schematic structural view of the mating part of the high Cheng Ding elevator and the translation mechanism.
Fig. 5 is a logical relationship diagram of a sand table control system.
In the figure: 1. the device comprises a base, 2, an elevation module, 3, an LED lamp, 4, an elastic fabric, 5, a height Cheng Dingsheng device, 6, a shell, 7, an elevation rod, 8, a spring, 9, a collision bead, 10, an assembly port, 11, a core hole, 13, an electric push rod, 14, a push rod state sensor, 15 and a translation mechanism.
Detailed Description
As shown in fig. 1 and 4, the automatic sand table of the invention comprises a base 1, an elevation module 2, an LED lamp 3, an elastic cloth 4, a high Cheng Ding liter 5, a translation mechanism 15, a control unit, a data transmission system and the like. The control unit can be constructed by adopting a conventional singlechip circuit. The elastic cloth 4 is made of semitransparent and elastic materials, covers the top surface of the elevation module array, and is fixed on the base 1 at the periphery, and when the top points of the elevation rods on the elevation module array are positioned at different heights, the overall outline of the topographic map can be formed.
In fig. 1, a base 1 is provided with supporting legs at the bottom of a supporting plate, and a frame structure is arranged on the supporting plate for bearing an elevation module array, wherein the elevation module array is formed by closely arranging a plurality of elevation modules in a matrix form.
As shown in fig. 2 and 3, the elevation module 2 includes a housing 6, an elevation rod 7, and a positioning mechanism. The housing 6 has a quadrangular outer surface with a core hole 11 penetrating up and down. The positioning mechanism is a ball-catching and clamping mechanism which is arranged in the shell 6 and faces the inner wall of the core hole. The ball catch mechanism is a transverse perforation which is diagonally arranged in the shell 6, and a ball catch 9 and a spring 8 are arranged in the perforation. The through holes 6 formed along the opposite angles of the shell are a section of blind holes formed from one side of the assembly port 10 to the opposite angles, and the hole positions can reduce the cross section size of the shell 6 so as to improve the setting number of elevation modules of the sand table in unit area and correspondingly improve the display precision of the topography in the sand table. Of course, other mechanical mechanisms having the same or similar function may be used for the positioning mechanism.
The height rod 7 is a terrain elevation in a sand table that is threaded into the core hole 11 of the housing 6. A plurality of ring grooves (the intervals of the ring grooves are the resolution of the automatic sand table in the height direction) are distributed on the rod body of the height rod 7 at equal intervals. The ball 9 in the ball catch mechanism cooperates with a groove in the body of the height lever to locate the height lever 7 in the core hole 11 of the housing 6. The upper end of the height rod 7 passes through the core hole 11 of the shell 6 upwards, and the multi-color LED lamp 3 is arranged at the top of the height rod 7 and is electrically connected with the control unit. According to the difference of the rising heights of the height rods, the LED lamp 3 can emit light rays with corresponding colors under the control of the control unit, and the light rays can be clearly seen from the outside through the semitransparent elastic cloth 4.
As shown in fig. 4, an electric push rod 13 and a push rod state sensor 14 are incorporated in the Gao Chengding liter 5. The electric push rod 13 is used to push the height rod in the elevation module mounted on the base 1 to the height set by the control unit. The push rod state sensor 14 is used to detect and determine the length of extension of the electric push rod 13 (i.e., the push-up height of the height lever). Gao Chengding liters 5 are arranged on the translation mechanism 15. The translation mechanism 15 is composed of a stepping motor and a linkage mechanism in the X and Y directions, and is used for translating the high Cheng Ding lifter 5 to the lower part of any elevation module in the elevation module array. Under the drive of the translation mechanism 15, the electric push rod 13 in the Gao Chengding lifter 5 performs pushing action on the height rod 7 in any elevation module.
Gao Chengding the lifter 5 can retract the electric push rod 13 after the height rod 7 in one elevation module 2 is pushed to a set height, and translate to the position of the next elevation module under the drive of the translation mechanism 15, and continue the pushing operation of the next elevation rod until all elevation modules are pushed, thus completing the construction operation of the whole automatic sand table. The translation mechanism 15 of the present invention may also be implemented using a nozzle movement mechanism in a 3D printer.
An overhead floor may be provided between the elevation module array and the base 1 in which the Gao Chengding riser 5 and translation mechanism 15 are disposed so that the Gao Chengding riser 5 performs an ejector operation on the top surface of the base 1. The elevation module array may also be disposed on a supporting plate of the base 1, the Gao Chengding lifter 5 and the translation mechanism 15 are disposed at the bottom of the base 1, and through holes (fig. 4) vertically opposite to the core holes of the elevation modules in the elevation module array are distributed on the plate surface of the supporting plate of the base 1, so that the Gao Chengding lifter 5 performs the pushing operation on the bottom surface of the base 1.
Gao Chengding the lift 5 is driven by the translation mechanism 15 to move at the bottom of the elevation module array. In operation, the Gao Chengding elevator 5 is driven to push the height bars 7 in each elevation module 2 in sequence. Thus, the height bars 7 in each elevation module 2 can be pushed one by one according to the topographic map information (also called as digital map information) input to the control unit by the upper computer, so that the topographic feature of a complete area is formed on the automatic sand table.
In the automatic sand table of the invention, the Gao Chengding lifter 5 can be a single body which independently acts on one elevation module at a time to perform the pushing operation of the single module; the device can also be a unit body assembled by more than two units, and the unit body acts on a corresponding number of elevation modules in the elevation module array in an array mode each time to synchronously push a plurality of elevation modules. While the working time used in the latter tends to be significantly reduced.
The control unit is respectively and electrically connected with the LED lamp 3, the electric push rod 13, the push rod state sensor 14 and the translation mechanism 15, the upper computer inputs topographic map information (figure 5) to the control unit through the data transmission system, the control unit converts the input information into point coordinate information, exploration height information and color information at corresponding position points on the elevation module array, the translation mechanism is controlled to move the elevation module to a certain position according to the point coordinate information, exploration height information and color information, and then the elevation Cheng Dingsheng device is controlled to push the elevation rod 7 in the elevation module at the position to rise to the corresponding height, and meanwhile, the lighting and the lighting color of the LED lamp 3 at the upper end of the elevation rod 7 are controlled. On the LED lamp array on the automatic sand table, a continuous line composed of the same color forms a contour line, and the display image is visual and easy to distinguish.
The data transmission system is respectively and electrically connected with the upper computer, the control unit, the translation mechanism and the push rod state sensor, and is used for transmitting map data transmitted by the upper computer to the control unit so as to be converted into control signals for the automatic sand table, and transmitting position information of the translation mechanism and data of the extending length (namely the height of the jacked height rod 7) of the electric push rod 13 detected by the push rod state sensor to the control unit respectively so as to be used for positioning the height Cheng Ding liter 5 and fixing the height of the elevation module 2. The push rod state sensor 14 and the data transmission system are electrically connected with the control unit to output push rod state detection information to the control unit. The data transmission system can also exchange data with the upper computer in a wired serial mode or in a wireless WIFI or Bluetooth mode.
The energy source of the construction work of the whole topography of the automatic sand table comes from a power supply, and the reset work can be carried out by pressing and resetting one by a human hand, and the pressing and resetting operation of a plurality of height rods can also be carried out by adopting a handheld flat plate.
When the automatic sand table is used for building terrains, digital map information is firstly input into a control unit through a wired or wireless mode (data carriers such as a USB flash disk can be used), the control unit controls the height Cheng Ding elevators 5 to push each elevation module 2 one by one through the translation mechanism 14 according to a corresponding mode, the height rod 7 in the elevation module is pushed to a corresponding height, and meanwhile, the LED lamp 3 at the top end of the elevation module emits light with a corresponding color. Thus, the whole automatic sand table can completely and intuitively display the topography and the topography through the elastic cloth cover 4, and the contour lines are marked at the same time. The display scale of the automatic sand table and the electronic map can be changed very conveniently under the condition of need, so that the automatic sand table can be reconstructed in a local 'enlarged' mode to display the local topography after 'refinement'.
The invention utilizes the method of the automatic sand table to present the topography, namely utilize the automatic sand table of the invention, input the map information of the topography of pre-display into its control unit, change into the point coordinate information of each elevation module in the elevation module array, stretch out the height information and lighting and color information of LED lamp by the control unit, and under the control of the control unit, push up the high Cheng Ding liter to move to the inferior part of the elevation module by the translation mechanism, according to the position, height and lighting information given by the control unit by Gao Chengding liter, push up the height pole in the elevation module in this position to rise to the height corresponding to control information, control the lighting and lighting color of LED lamp of the upper end of the height pole at the same time; the height rods in each elevation module are pushed one by one, so that all the height rods reach the height marked by the topographic map information, the elastic covering cloth is pushed by itself to display the input topographic features when the height rods are lifted, and a continuous line composed of LEDs with the same lighting color and the like forms a contour line.
Wherein, the Gao Chengding lifter can be a single body, and can independently act on one elevation module at a time to perform the ejection operation of the single module; or a composite body formed by combining at least two unit bodies forming an array, and acting on a corresponding number of elevation modules in an array mode each time to perform synchronous ejection operation of the elevation modules.
Examples
The section area of the elevation module 2 is 1X 1cm 2 The cross-sectional area of the height Cheng Ding liter 5 was set to be 4X 4cm 2 Each height Cheng Ding litres corresponds in cross-sectional area to the area of a local array of 4 x 4 = 16 elevation modules.
If a sand table area with a 5:4 aspect ratio is 256cm by 200cm, 256 by 200 elevation modules are required. If 1 tall Cheng Dingsheng machine is used, at least 256 x 200 = 51200 translational movements including initial positioning are required to raise all elevation modules into place (for simplicity of discussion, it is not considered here that some modules that do not have to be raised can be passed directly over, thus saving overall operating time).
Now a 2x 2 tall Cheng Dingsheng array is used, this integrated tall Cheng Dingsheng array covers 4 x 16 elevation modules of equal area and can be set as a set of elevation modules. Thus, the elevation modules of the entire sand table are divided into 256/8=32 groups in the lateral direction and 200/8=25 groups in the longitudinal direction, with a total of 32×25=800 groups. In each group, the positioning movement of the Gao Chengding liter arrays is needed for 16 times to complete the calibration of 64 elevation modules in the group, and then the elevation modules are translated to the next group to complete the calibration.
By analogy, this approach requires a total of 800×16=12800 moves of the tall Cheng Dingsheng array, just a quarter of the number of moves using a single tall Cheng Ding liter, which can greatly reduce the build time of the sand table. The lift time varies in view of the different lift distances of each tall Cheng Dingsheng applicator at the location of the positioning. For a tall Cheng Dingsheng array, the overall rise time will be determined by the longest of the four lifters.
Similarly, it is inferred that if more tall Cheng Dingsheng machines were used, the terrain build time for a sand table would be shorter. Of course, if a separate height Cheng Dingsheng machine is used for each elevation module, or an integrated process is performed, the sand table generation time is minimized because no mechanical translation of any height Cheng Ding liters is necessary. However, under the current technical conditions, if the high Cheng Ding liter and the elevation module are manufactured in an integrated manner, the volume is necessarily large, so that the resolution ratio can be too low, and the problem is that accurate details cannot be displayed on a limited sand table area.
Claims (6)
1. An automatic sand table, comprising:
the elevation module comprises a shell, an elevation rod and a positioning mechanism for positioning the elevation rod; the shell is in a quadrangular shape and is provided with a core hole which penetrates up and down; the positioning mechanism is a ball collision clamping mechanism facing the core hole, which is arranged in the shell; the height rod is connected in the core hole in a penetrating way to serve as a terrain elevation piece in the sand table, a plurality of annular grooves which are distributed at equal intervals are distributed on the rod body of the height rod, and the collision beads are matched with the annular grooves, so that the height rod is positioned in the core hole of the shell;
the base is used for bearing an elevation module array formed by closely arranging a plurality of elevation modules in a matrix;
gao Chengding liters, including electric pushers and pushbar status sensors; the electric push rod is used for pushing the height rod in the elevation module above the electric push rod to a set height, and the push rod state sensor is used for detecting the pushing height of the electric push rod;
the translation mechanism is used for pushing the high Cheng Ding lifter to move below any elevation module in the elevation module array;
the LED lamps are multicolor light-emitting diodes and are arranged at the upper ends of the height rods and are used for displaying the heights of the height rods in different brightness colors, so that the LED lamps at the same height form a luminous contour line with the LED lamps at other heights;
the elastic cloth is made of a textile material with translucency and high elasticity, covers the top surface of the elevation module array, and is fixed on the base at the periphery to form a ground pattern on the sand table;
the control unit is electrically connected with the LED lamp, the electric push rod, the push rod state sensor and the translation mechanism and is used for converting the topographic map information input by the upper computer into point coordinate information, protruding height information and color information at the corresponding position on the automatic sand table, controlling the height Cheng Dingsheng device to translate to the corresponding position, pushing the height rod in the height module at the position to lift the height rod to the corresponding height, and simultaneously controlling the lighting and the lighting color of the LED lamp at the upper end of the height rod; and
and the data transmission system is used for converting map data transmitted by the upper computer into control signals for the automatic sand table and transmitting the position information of the translation mechanism and the push rod extension length data detected by the push rod state sensor to the control unit.
2. The automated sand table of claim 1 wherein an overhead layer is provided between the elevation module array and the base, the Gao Chengding riser and the translation mechanism being disposed in the overhead layer.
3. The automatic sand table of claim 1 wherein the elevation module array is disposed on a support plate of the base, the Gao Chengding elevator and the translation mechanism are disposed at a bottom of the base, and through holes vertically opposite to core holes of elevation modules in the elevation module array are distributed on a plate surface of the support plate of the base.
4. The automated sand table of claim 1 wherein the Gao Chengding liter is a single body that is individually acted upon one elevation module at a time to perform a single module ejection operation.
5. The automatic sand table of claim 1 wherein the Gao Chengding elevator is a composite of at least two units that form an array, each time acting on a corresponding number of elevation modules in an array, performing a simultaneous ejection operation of a plurality of elevation modules.
6. A method for displaying terrains by using an automatic sand table, which is characterized in that the automatic sand table according to any one of claims 1-5 is used for inputting pre-displayed topographic map information into a control unit thereof, the pre-displayed topographic map information is converted into point coordinate information, exploration height information and lighting and color information of each height module in an elevation module array by the control unit, a translation mechanism is used for pushing a height Cheng Ding lifter to move to the lower part of the height module under the control of the control unit, and a Gao Chengding lifter is used for pushing a height rod in the elevation module at the position to be lifted to a height corresponding to the control information according to a position, the height and the lighting information given by the control unit, and meanwhile, the lighting and the color of an LED lamp at the upper end of the height rod are controlled; the height rods in each elevation module are pushed one by one, so that all the height rods reach the height marked by the topographic map information, the elastic covering cloth is pushed by the lifting of the height rods to display the input topographic features, and continuous lines formed by the LED lamps with the same lighting color form the contour line of a certain elevation.
Priority Applications (1)
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| CN110992857B (en) * | 2019-12-31 | 2021-08-27 | 齐鲁工业大学 | Relief display device |
| CN111854709B (en) * | 2020-07-22 | 2021-04-06 | 江苏中润工程建设咨询有限公司 | Engineering measurement pay-off test device and method based on BIM + holographic projection |
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