CN110322774A - A kind of relief map sand table device and its control system and method - Google Patents

A kind of relief map sand table device and its control system and method Download PDF

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Publication number
CN110322774A
CN110322774A CN201910677722.3A CN201910677722A CN110322774A CN 110322774 A CN110322774 A CN 110322774A CN 201910677722 A CN201910677722 A CN 201910677722A CN 110322774 A CN110322774 A CN 110322774A
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CN
China
Prior art keywords
lifting
stick
sand table
relief map
pneumatic
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CN201910677722.3A
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Chinese (zh)
Inventor
朱永云
郭吉东
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Kunming Hao Hao Technology Co Ltd
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Kunming Hao Hao Technology Co Ltd
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Priority to CN201910677722.3A priority Critical patent/CN110322774A/en
Publication of CN110322774A publication Critical patent/CN110322774A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803Modular units
    • F15B13/0807Manifolds
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1404Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B25/00Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
    • G09B25/06Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes for surveying; for geography, e.g. relief models
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • F15B2013/0448Actuation by solenoid and permanent magnet

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)

Abstract

The invention discloses a kind of relief map sand table device and its control systems and method, it is placed in table frame in several liftable lifting sticks of net battle array arrangement, pneumatic lifting column, to extend downwardly and the hollow cylinder chamber with opening inside pneumatic lifting column, movable to be placed in hollow cylinder intracavitary by piston sheet that top is installed for hollow fixed link, piston sheet surrounding and hollow cylinder cavity wall are in sealing contact, and there is the port for being connected to hollow fixed link at the top of piston sheet, hollow bottom of fixed is equipped with gas nozzle, gas nozzle is connected to electric air pump by air inlet essence control device, air inlet essence control device is connected to controller;The lifting principle of present invention pneumatic structure, have the characteristics that convenient and quick lifting manipulation, overall structure light-weight design, lifting easy to maintain and Hovering control, greatly reduce the cost of equipment consumptive material, the sand table structure of high pixel can refine more, full completion shows three-dimensional landform, specific shape can be assembled into, the right height of group, practicability are good.

Description

A kind of relief map sand table device and its control system and method
Technical field
The present invention relates to electronic map sand table technical fields, and in particular to a kind of relief map sand table device and its control system System and method.
Background technique
Sand table is ruler silt or other materials and soldier in proportion according to topographic map, airphoto, the on the spot data such as landform The model of a kind of the display landform and ground target of chess production.The features such as it has three-dimensional sense strong, visual in image.Sand table purposes is wide General, it can visually show the landform of combat area, and in today of time of peace, sand table is also commonly used to production economic development planning It is visual in image with the model of large-scale construction project, quite by the favor of planning decision-making person and engineers and technicians.In recent years, it entreats Depending on being exactly the leading case that a sand table is applied to that natural calamity work is administered in prevention to the analog demenstration in disaster area in news channel. With the development of science and technology there has also been new pursuits for production of the people to sand table, in order to meet new needs, above-mentioned show is resolved Problematic, for the full view technology of sand table, the demand point for merging traditional sand table and electronic sand table is growing day by day.
However traditional sand table has its shortcoming, the precision of Simple sand table is lower, and permanent sand table manufacturing process is numerous Trivial, time-consuming, and there are also be exactly that mobile sand table workload will be very big if necessary.Electronic sand table is for traditional sand table 's.Existing electronic sand table is mainly the combination of the new and high technologies such as remote sensing, GIS-Geographic Information System, three-dimensional artificial.It is by three-dimensional Emulation technology, which fictionalizes, to be come, have terrain information is accurate, atural object indicates intuitive in detail, browsing is convenient, support attribute query, The advantages that conformal analysis amount is calculated, is simulated.The production of electronic sand table is also more and more common, but current electronic sand table technology production Sand table be all three-dimensional simulation technique achievement, display when is shown in flat-panel screens or projects to a screen On, which limits the number of observable person or independence, what all observers observed is the same information, to observation It visual angle can only be by a certain personal control, or the observation route worked out in advance.So current electronic sand table can not also be complete It is complete to replace traditional sand table.
And conventional digital sand table is currently broadly divided into two kinds: first is that increasing multimedia on original traditional sand table model Projector system;Second is that pure 3-dimensional digital sand table, generally there is interaction function, perspective plane is generally the white or grey of specially treated Curtain face, is equipped with entity sand table model.Pass through sound, light, electricity, image, three-dimensional animation and computer program-control technology and physical model It blends.Museum, exhibition center, the scene or material object for intuitively reflecting displaying in science and technology center at present, often use model Mode, to the impression of one stereoscopic and omnibearing of visitor.And existing three-dimensional model, sand table be a kind of fixation, it is constant Showpiece is only capable of the cooperation by light to convert the content shown, although this device its outer be easy to allow visit as true to nature Person understands, but its form of expression is inflexible, can not interact with spectators, it is single to show content, makes visitor that can not pass through sand table Or three-dimensional model obtains oneself interested content, can not also be added it is some can deeper time introduce sand table or three-dimensional model is thin The content of section, and it shows that content can not be changed according to theme is shown, greatly reduces its due bandwagon effect, it cannot Meet current visitor and focuses on the needs of visiting experience.
A kind of goods electronic sand map system of Chinese invention patent CN201310431624.4 and method provide it is a kind of it is automatically controlled from The technology of dynamic forming stereo sand table, but cost needed for the technology is high, needs to need to configure one to each lifting column lower section A lifting motor, then cooperate image signal light control, overall cost is quite high, does not have the practicability that actual production uses.
Summary of the invention
The present invention is to solve above-mentioned the deficiencies in the prior art and defect, now provides a kind of low cost, easy to control Electronic three-dimensional sand table, remove from motor lifting use be divided into several units, each unit list by dividing elements The solely elevating control in responsible unit, reduces the quantity and use cost of lifting operating-controlling mechanism, can be by the unit of lifting column Section further reduces, further increase three-dimensional display accuracy and image, it is three-dimensional.
Specifically, the present invention is implemented as follows:
The first aspect of the present invention provides a kind of relief map sand table device, comprising: table frame is placed in table frame in net Several liftable lifting sticks of battle array arrangement, lifting stick includes: pneumatic lifting column, inside the pneumatic lifting column for Lower extension and the hollow cylinder chamber with opening, hollow fixed link are placed in hollow cylinder chamber by the way that piston sheet that top is installed is movable Interior, piston sheet surrounding and hollow cylinder cavity wall are in sealing contact, and have the port for being connected to hollow fixed link at the top of piston sheet, The hollow bottom of fixed is equipped with gas nozzle, and gas nozzle is connected to electric air pump, air inlet essence control device by air inlet essence control device It is connected to controller.
Further, the lifting stick constitutes an assembly unit grouping composition, several component lists by a number of First parallel tiling combination is placed in table frame, and the assembly unit includes outside the upper layer of outermost layer lifting stick upper outside Frame, lower layer's outline border positioned at bottom outside are connected with bottom plate between lower layer's outline border, and lifting stick, which is arranged in array, is installed on bottom plate On, and gas nozzle passes through bottom plate and exposes on the bottom surface of bottom plate, passes through vertically between upper layer outline border and lower layer's outline border in four corners Vertical pole connection.
Further, frame bottom abutting joint air inlet essence control device outside the lower layer, the air inlet essence control device include with The consistent lifting pneumatic control stage of lower layer's outline border size shape, two opposite sides for going up and down pneumatic control stage are provided with contour rail Road cross bar, the neat top and bottom in lifting pneumatic control stage inside are vertically placed with the pneumatic control group of lifting that can be moved in it, The two sides for going up and down pneumatic control group are mounted on shifting roller, shifting roller be placed on the track cross bar of two sides and with transmission Band contact, at least transmission belt of side are sequentially connected with the mobile motor being mounted in lifting pneumatic control stage, the lifting air Dynamic control group has the neutral structure for vacating mobile motor seat in the plane, and the electric air pump is micro air pump, the lifting pneumatic control Micro air pump is fixedly mounted on column, micro air pump distributes several branch's tracheaes, and branch's tracheae is mounted on electromagnetism on middle section Air valve, a point bronchial upper section are mounted on the top column for going up and down pneumatic control group and are exposed at top column table in straight line arrangement Face.
Further, described point of bronchial quantity and one in an assembly unit horizontally-arranged elevation bar number of blocks phase one It causes, and point bronchial perforation distribution position being exposed on lifting pneumatic control group top column and each hollow bottom of fixed Gas nozzle position correspond.
Further, described point of bronchial top has a holding tank, is pneumatically connected valve and is movably placed in holding tank, Being pneumatically connected valve is in hat shape, plate-like edge and ontology including bottom, the vertically communicated portion in the body of air passage, the bottom of the gas nozzle End is built-in with docking groove, and the size of docking groove and the ontology for being pneumatically connected valve is mutually adapted, and the top of docking groove has connection To the venthole of hollow fixed link.
Further, lower layer's outline border is along the side frame bottom surface for going up and down the direction that pneumatic control group moves in every row's liter On the position of drop stick middle line alignment and lifting pneumatic control group top column both ends midline is equipped with and is mutually adapted corresponding light Electric alignment sensor.
Another aspect of the present invention provides a kind of relief map the sand dish controls system, comprising: sand table module, by several A assembly unit is distributed composition side by side, and each assembly unit is distributed structure by array by several liftable lifting sticks again side by side At each assembly unit is used for through each lifting stick by remaining stationary after respectively required adjustable height lifting, on the whole Realize the stereo structure sand table that there is height to rise and fall;Total control module for receiving the terrain data of relief map, and is based on component The number of unit and distributed intelligence are divided into corresponding unit terrain data, and the distribution of unit terrain data is corresponded to phase It is determined on the assembly unit answered and based on the quantity of lifting stick and distributed intelligence in assembly unit every in each assembly unit The adjustable height information of each lifting stick in a line, and it is sent to elevating control module;Elevating control module is used for institute When stating the time that adjustable height information is converted into electromagnetic gas valve unlatching, and passing through the opening and closing of electric air pump and several electromagnetic gas valves Between control it is each lifting stick in inject air capacity, and in single component unit by row be followed successively by lifting stick be inflated Control, until the lifting stick on each assembly unit is made to keep required adjustable height.
Further, the elevating control module is also used to carry out by the transverse shifting for going up and down pneumatic control group by row It is followed successively by lifting stick and is inflated control, and every a line elevation bar block all passes through corresponding photoelectricity alignment sensor realization and determines Position.
Another aspect of the invention provides a kind of control method of relief map sand table, comprising the following steps:
S1, the terrain data M1 for obtaining relief map, and corresponding region institute is respectively divided out by several assembly units Corresponding several unit terrain datas M2;
S2, by unit terrain data by the assembly unit corresponding to it elevation bar number of blocks and distributed intelligence be divided into Several monomers terrain data M3, and convert thereof into lifting requirements h1 corresponding to lifting stick;
S3, based on each lifting stick lifting corresponding height corresponding to gas flow by h1 be converted into electromagnetic gas valve needs open The time value t1 opened;
Temporally t1 controls corresponding electromagnetic gas valve unlatching for S4, air inlet essence control device, and lifting stick is elevated to corresponding height Degree is kept behind position, until each lifting stick is elevated to corresponding height, relief map is obtained on sand table.
Further, in step s 4, each assembly unit only one air inlet essence control device, air inlet essence control device are logical It crosses the intermittent shifting of the transverse direction that can be paused, stop, air inlet successively is carried out to the lifting stick in assembly unit by row and rises manipulation.
The working principle of the invention introduction: lifting principle is pneumatically realized by gas, similar to the piston of syringe And push rod, after electromagnetic gas valve is opened, air-flow is entered in hollow fixed link under the action of electric air pump from branch's tracheae Between in air flue, upper intracavitary portion's convergence of hollow cylinder that lifting stick is entered at the top of piston sheet along it, with constantly injecting Gas increase, cavity pressure is excessive, gas push pneumatic lifting column rises relative to hollow fixed link, realize and increase, when After reaching predetermined altitude, electromagnetic gas valve is closed, because piston sheet is close to effect with hollow cylinder cavity wall, the two is fixed to each other not It is dynamic, maintain the adjustable height of the pneumatic lifting column of lifting stick;Conversely, opening the air valve or gas of lower end when needing to decline Mouth can push pneumatic lifting column by external force and is pressed into bottom, can also be practised and be evacuated by the air pump of reversed negative pressure, By the intracavitary gas extraction of hollow cylinder, also energy band moves the decline of pneumatic lifting column.The major function of controller, exactly for locating It manages data and realizes and electric air pump and the whole of electromagnetic gas valve are controlled, air inlet behaviour targetedly is carried out to each lifting stick Control, to realize the automatic moulding control of stereo sand table;It is divided and is designed using sub-unitization, it can be by large number of elevation bar The assembly unit that block is divided into negligible amounts realizes streamlining management, and each assembly unit is to carrying out lifting control in itself region System can effectively reduce the arithmetic speed of disposed of in its entirety under the air inlet essence control device of limited quantity and improve elevating control speed Degree, each assembly unit install an air inlet essence control device, and air inlet essence control device is responsible for each lifting in the assembly unit Stick rise to gas lift, and the lifting in several assembly units on entire sand table carries out simultaneously, effectively realize with compared with Few power device realizes the elevating control to large number of lifting stick, while also improving timeliness, the use shorter time, Less power consumption realizes the integrally formed of the three-dimensional topographic sand table under zooming controlization.
The technical effect of the present invention compared with prior art:
(1) elevating control is carried out to lifting column without using lifting motor, uses the lifting principle of pneumatic structure instead, had more The characteristics of adding convenient and quick safety, lifting manipulation, overall structure light-weight design, lifting easy to maintain and Hovering control.
(2) motor or power-equipment are adapted to without being individually for each lifting stick, an air inlet essence control device, i.e., The elevating control of the achievable lifting stick to nearly more than 40 to 100 or so, greatly reduces the cost of equipment consumptive material.
(3) the lifting stick of single pixel can realize control in the cross-sectional sizes of 1~8cm or so, in current lifting electricity In sand control disk technology field, belong to the highdensity sand table structure of high pixel, so as to more refine, full completion show it is vertical Body landform, it is more vivid, true to nature.
(4) pneumatics of product of the invention based on current maturation, so that it is easily managed and safeguards, air pressure can low gas Pressure design ensures the safety used, avoids the structure design of mechanical lifting, reduces design cost and dosage quality, so that This product lightweight also can according to need and be assembled into specific shape using multiple component units, organize right height, practicability It is good.
Detailed description of the invention
Fig. 1 is the lifting theory structure schematic diagram for going up and down stick;
Fig. 2 is the structural schematic diagram of air inlet essence control device;
Fig. 3 is assembly unit and the structural perspective for going up and down pneumatic control stage;
Fig. 4 is the three-dimensional structure diagram for going up and down pneumatic control group;
Fig. 5 is to go up and down the perspective view of pneumatic control stage during the work time;
Fig. 6 is the cross section structure schematic diagram for going up and down stick;
Fig. 7 is the structure perspective diagram for going up and down stick;
Fig. 8 is the structural schematic diagram for being pneumatically connected valve docking;
Fig. 9 is assembly unit mounting structure schematic diagram;
Figure 10 is that assembly unit is installed on the structural schematic diagram in table frame;
Figure 11 is the demonstration perspective view of relief map sand table device;
Figure 12 is the structural schematic diagram of relief map the sand dish controls system;
Figure 13 is the flow diagram of relief map the sand dish controls method;
Wherein: 1 table frame, 2 lifting sticks, 3 pneumatic lifting columns, 4 hollow cylinder chambers, 5 hollow fixed links, 6 piston sheets, 7 gas Mouth, 8 gas nozzles, 9 electric air pumps, 10 docking grooves, 11 air passages, 12 upper layer outline borders, 13 lower layer's outline borders, 14 bottom plates, 15 vertical poles, 16 liters Pneumatic control stage, 17 track cross bars, the pneumatic control group of 18 liftings, 19 shifting rollers, 20 transmission belts, 21 mobile motors, 22 groups drop Part unit, 23 branch's tracheaes, 24 electromagnetic gas valves, 25 holding tanks, 26 are pneumatically connected valve, 27 plate-like edge, 28 ontologies.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment and join According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair Bright range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid this is unnecessarily obscured The concept of invention.
Embodiment 1: relief map sand table device, comprising: table frame 1, being placed in table frame 1 can rise in several of net battle array arrangement The lifting stick 2 of drop, lifting stick 2 includes: pneumatic lifting column 3, is extended downwardly and inside the pneumatic lifting column 3 with opening Hollow cylinder chamber 4, hollow fixed link 5 is placed in hollow cylinder chamber 4 by the way that piston sheet 6 that top is installed is movable, piston sheet 6 Surrounding and 4 inner wall of hollow cylinder chamber are in sealing contact, and have the port 7 for being connected to hollow fixed link 5 at the top of piston sheet 6, described Hollow 5 bottom of fixed link is equipped with gas nozzle 8, and gas nozzle 8 is connected to electric air pump 9, air inlet essence control device by air inlet essence control device It is connected to controller.Table frame 1 is used to support entire sand table, and hollow cylinder chamber 4 can be regarded as plunger shaft, can be hollow solid It is gone up and down in fixed pole 5, for the two by piston sheet 6 as connection contact portion, the frictional force that piston sheet 6 provides is able to maintain Pneumatic elevation Column 3 keeps stable height, and electric air pump 9 is responsible for providing the gas source of admission pressure, and air is infused by air inlet essence control device Enter into the gas nozzle 8 of hollow 5 bottom of fixed link, gas rises from the entrance of port 7 along the conduit region at hollow 5 middle part of fixed link Final that pneumatic lifting column 3 is pushed to rise in air cylinder chamber 4, specific adjustable height can be according to lifting 2 inner hollow of stick The internal diameter and length, the flow of electromagnetic gas valve 24, branch of the internal diameter and height number of cylinder chamber 4,5 middle part tracheae of hollow fixed link The length etc. of tracheae 23 calculates how many gas volumes (considering decrement) corresponding how many adjustable height value, may further The time value opened required for electromagnetic gas valve 24 is calculated, when the height value of lifting can be converted to the unlatching of electromagnetic gas valve 24 Between be worth, it is only necessary to the opening time for setting electromagnetic gas valve 24 can be obtained the adjustable height of corresponding lifting stick 2, realize To controllableization of adjustable height.
Preferably, the lifting stick 2 constitutes the grouping composition of assembly unit 22, several component lists by a number of Tiling combination is placed in table frame 1 member 22 in parallel, and the assembly unit 22 includes being located at outermost layer to go up and down 2 upper outside of stick Upper layer outline border 12, lower layer's outline border 13 positioned at bottom outside, bottom plate 14 is connected between lower layer's outline border 13, and lifting stick 2 is in battle array Column arrangement is installed on bottom plate 14, and gas nozzle 8 passes through bottom plate 14 and exposes on the bottom surface of bottom plate 14, upper layer outline border 12 and lower layer It is connected in four corners by vertical vertical pole 15 between outline border 13.The design of assembly unit 22 can be such that sand table turns to from whole Cellular construction, the graph data inside oneself unit of each cell processing show the topographic sand table mutually in requisition for displaying, Neng Gouda To the effect simplified, and such form ease of assembly and management of cargo handling, the different sand table of size dimension can be constructed, The even sand table of various pattern forms, also may be implemented;Wherein, upper layer outline border 12, vertical pole 15 and lower layer's outline border 13,14 structure of bottom plate It is kept away at the braced frame of assembly unit 22 for placing fixation and installation with the lifting stick 2 in the assembly unit 22 of position Exempt to occur area it is larger after, the problem of lifting stick 2 can not be installed neatly appearance;
13 lower part abutting joint air inlet essence control device of lower layer's outline border, the air inlet essence control device include big with lower layer outline border 13 Two opposite sides of the consistent lifting pneumatic control stage 16 of small shape, lifting pneumatic control stage 16 are provided with contour track cross bar 17, the neat top and bottom in 16 inside of lifting pneumatic control stage are vertically placed with the pneumatic control group 18 of the lifting that can be moved in it, The two sides for going up and down pneumatic control group 18 are mounted on shifting roller 19, and the bottom of lifting pneumatic control stage 16 can be set several Ball, ball are contacted with bottom surface, and shifting roller 19 is placed on the track cross bar 17 of two sides and with transmission belt 20 and contacts, transmission belt 20 and shifting roller 19 can be the rack and pinion being mutually adapted, at least the transmission belt 20 of side and be mounted on the pneumatic control of lifting Mobile motor 21 on frame 16 processed is sequentially connected, and after mobile motor 21 starts, transmission belt 20 is driven to rotate, and transmission belt 20, which drives, to be moved Dynamic idler wheel 19 rotates, to drive entire lifting pneumatic control stage 16 traversing, the pneumatic control group 18 of lifting vacates movement The neutral structure of 21 seat in the plane of motor, the electric air pump 9 are micro air pump, are fixedly mounted in the pneumatic control group 18 of lifting micro- Type air pump, micro air pump distribute several branch's tracheaes 23, and branch's tracheae is mounted on electromagnetic gas valve 24, branch on 23 middle section The upper section of tracheae 23 is mounted on the top column for going up and down pneumatic control group 18 and is exposed at top column surface in straight line arrangement.Example Such as, the side length specification that stick 2 is 2cm is gone up and down on the sand table of a 100cmX160cm, and sand table is divided into 40 20cmX20cm Assembly unit 22,40 assembly units 22 combination be combined into a complete sand table, this 40 assembly units 22 can be numbered Handling by coordinate is X01Y01~X40Y40, and by taking X01Y01 assembly unit 22 as an example, lifting stick 2 thereon has 100, point Bian Hao not be X01Y01-x001y001~X01Y01-x100y100, or using other coding numberings can also, i.e., it is entire husky There are 4000 lifting sticks 2 on disk, and after being divided into 40 assembly units 22, an air inlet essence is arranged in each assembly unit 22 Device is controlled, there are 10 air inlets 7 on an air inlet essence control device, passes through movement, an air inlet essence control device front and back difference energy Enough it is responsible for the elevating control of 100 lifting sticks 2;That is 40 air inlet essence control devices can complete the liter of 4000 lifting sticks 2 Drop control, greatly reduces the mechanism quantity of elevating control;
The quantity of branch's tracheae 23 is consistent with horizontally-arranged 2 quantity of lifting stick in an assembly unit 22, and outer It is exposed at the perforation distribution position and each hollow 5 bottom of fixed link for going up and down branch's tracheae 23 that pneumatic control group 18 is pushed up on column 8 position of gas nozzle corresponds.The top of branch's tracheae 23 has a holding tank 25, is pneumatically connected valve 26 and is movably placed in holding tank It will not therefrom deviate from 25, but can be gone up and down in holding tank 25, being pneumatically connected valve 26 is in hat shape, 27 He of plate-like edge including bottom Ontology 28, plate-like edge 27 are used for position-limiting action, will not both receive calmly and skidded off in slot 25 down, will not be from holding tank 25 upwards Ejection dislocation, air passage 11 is vertically communicated on the top of ontology 28, bottom both ends, and the bottom end of the gas nozzle 8 is built-in with docking groove 10, right Access slot 10 and the size for the ontology 28 for being pneumatically connected valve 26 are mutually adapted, and the top of docking groove 10, which has, is connected to hollow fixed link 5 venthole;When in use, branch's tracheae 23 by injection have certain pressure gas, electromagnetic gas valve 24 open after, gas into Enter in the holding tank 25 at the top of branch's tracheae 23, due to being pneumatically connected the floor space of valve 26 more than air passage 11 on ontology 28 Area of section is big, and gas, which will push, to be pneumatically connected valve 26 and jacked up in rising in holding tank 25, until plate-like edge 27 reaches appearance 25 roof of slot of receiving is limited, and the ontology 28 for being pneumatically connected valve 26 is then exposed at 23 end outer end of branch's tracheae, into hollow fixation In the docking groove 10 of the gas nozzle 8 of bar 5, gas from the venthole in docking groove 10 enter eventually into hollow fixed link 5 reach it is hollow In cylinder chamber 4, after stopping to gas, it is pneumatically connected valve 26 and falls after rise under the effect of gravity;In this process, it is pneumatically connected valve 26 not Branch's tracheae 23 is only realized to connect with the air-flow of hollow fixed link 5 to connection function, also achieve branch's tracheae 23 with it is hollow solid Stability of the fixed pole 5 in the precise locating function and maintenance docking operation in docking operation, wherein be pneumatically connected valve 26 28 end of ontology is in the interior cambered surface for receiving shape, to easily facilitate the accurate positioning in docking operation.Lower layer's outline border 13 is along lifting air In on the position that every row goes up and down the alignment of 2 middle line of stick and lifting air on the side frame bottom surface in the mobile direction of dynamic control group 18 The dynamic top of control group 18 column both ends midline, which is equipped with, is mutually adapted corresponding photoelectricity alignment sensor.Pneumatic control is gone up and down for detecting Whether column 18 processed moves in place, after movement in place, then stops, until each electromagnetic gas valve 24 that a ranking is set is turned off Afterwards, then start to move, arrive next station.
Embodiment 2: on the basis of embodiment 1, present embodiments providing a kind of relief map the sand dish controls system, packet Include: sand table module is distributed side by side by several assembly units and is constituted, and each assembly unit is again by several liftable elevation bars Block is distributed composition by array side by side, and each assembly unit is used for through each lifting stick by respectively required adjustable height lifting After remain stationary, on the whole realize have height rise and fall stereo structure sand table;Total control module, for receiving the ground of relief map Graphic data, the terrain data includes length and width data, scale number evidence, altitude information of the landform under ratio, by these height Data by Aspect Ratio and sand table lifting stick pixel direction and quantity gridding processing, obtain the same direction under, according to Altitude information under each pixel unit of secondary array arrangement, i.e. unit terrain data, unit terrain data is distributed and is corresponded to Each assembly unit is determined on to corresponding assembly unit and based on the quantity of lifting stick and distributed intelligence in assembly unit The adjustable height information of each lifting stick in interior every a line, for example, obtaining X01Y01-x001y001 extremely after processing Altitude information under this eight pixel units of X01Y01-x008y001 is all 60mm, this pixel unit of X01Y01-x009y001 Under altitude information be 30mm, etc., obtain the altitude information of each pixel unit, and phase is conversed according to 60mm, 30mm Gas flow corresponding to height is answered, i.e., in the internal diameter and height number, hollow fixed link of lifting stick inner hollow cylinder chamber The internal diameter and length of portion's tracheae, the flow of electromagnetic gas valve, point bronchial length etc. calculate how many gas volumes and (consider pressure Contracting amount) how many adjustable height values is corresponded to, the time value opened required for electromagnetic gas valve may further be calculated, obtains 60mm's The unlatching duration of electromagnetic gas valve is 1.24s, and the unlatching duration of the electromagnetic gas valve of 30mm is 0.67s;Then, it will need Time data be sent to elevating control module;Elevating control module, for converting electromagnetism gas for the adjustable height information The time that valve is opened, and injection in each lifting stick is controlled by the opening/closing time of electric air pump and several electromagnetic gas valves Air capacity, and be followed successively by lifting stick by row in single component unit and be inflated control, until making on each assembly unit Lifting stick keep required adjustable height.
Preferably, the elevating control module, be also used to carry out by the transverse shifting for going up and down pneumatic control group by row according to It is secondary to be inflated control for lifting stick, and every a line elevation bar block all passes through corresponding photoelectricity alignment sensor and realizes positioning. Mobile motor is controlled by elevating control module, when mobile motor starting, drives transmission belt rotation, transmission belt Shifting roller is driven to realize on track cross bar traversing, when lifting pneumatic control stage is moved to the gas of next row lifting stick tail end When below mouth, photoelectricity alignment sensor, such as infrared light transducer[sensor receive the optical signal under corresponding position, it was demonstrated that lifting air Dynamic control cage is mobile, and mobile motor stops working in place, and lifting pneumatic control stage stops, and then, elevating control module is according to being somebody's turn to do One row goes up and down altitude information corresponding to stick, and by it, respectively required valve opening time value controls each electromagnetic gas valve progress The unlatching of corresponding time is closed, until illustrating that the control of the rise to a row is completed, lifting control after all electromagnetic gas valves are closed Molding block controls mobile motor and starts, and reaches next station and stopping until determining by photoelectricity alignment sensor, completion pair Next row goes up and down the rise manipulation of stick;Until lifting pneumatic control stage is moved to the end of track cross bar, i.e., last is arranged It goes up and down below stick station, then completes to complete each pixel on single component unit corresponding pneumatic control lifting control System, after all assembly units complete respective work, the sand table of whole three-dimensional contouring forms immediately.When needing to be reset, Inverse process can be realized using reversed gas negative pressure by elevating control module, to lifting stick pumping, achieve the effect that recovery, Also can use manually using suitable tool, give a downward pressure in Pneumatic elevation column top, by internal gas in Recovery effect also may be implemented in lower end discharge, for example utilizes a block pressur plate, can be quickly by an entire pneumatic lifting column Pressing is restored.
A kind of embodiment 3: control method of relief map sand table, comprising the following steps:
Step S1, the terrain data M1 of relief map is obtained, and corresponding area is respectively divided out by several assembly units Several unit terrain datas M2 corresponding to domain;Wherein, unit terrain data M1 is that entire needs are shown on sand table Terrain data convert under certain proportion ruler after the actual height given expression to required for sand table altitude information;Unit Graphic data M2 is son on the basis of unit terrain data M1, after successively dividing according to the number of division unit component on sand table Altitude information;
Step S2, by unit terrain data by the assembly unit corresponding to it elevation bar number of blocks and distributed intelligence draw It is divided into several monomers terrain data M3, and converts thereof into lifting requirements h1 corresponding to lifting stick;Monolithically figurate number Be the altitude information that needs actually to go up and down corresponding to each lifting stick after conversion according to M3, based on this it is practical need to The height to be gone up and down, that is, corresponding lifting requirements h1 needed for each lifting stick may finally be calculated,
Step S3, h1 is converted into electromagnetic gas valve based on gas flow corresponding to each lifting stick lifting corresponding height needs The time value t1 to be opened;The time-consuming that required gas flow and the process can be calculated based on h1 is time value t1;
Step S4, temporally t1 controls corresponding electromagnetic gas valve unlatching to air inlet essence control device, and lifting stick is elevated to accordingly Height and position after keep, until each lifting stick be elevated to corresponding height, on sand table relief map.
Preferably, each assembly unit only one air inlet essence control device, air inlet essence control device pass through the cross that can be paused To intermittent shifting, stop, air inlet successively is carried out to the lifting stick in assembly unit by row and rises manipulation.That is an air inlet essence control dress The corresponding responsible lift operation to lifting stick all in assembly unit is set, is completed several times by the number of rows of lifting stick, often The secondary lift operation for completing horizontally-arranged interior all lifting sticks carries out simultaneously, is moved to next row lifting stick after the completion Lower section carries out pneumatic rise to the lifting stick in the row and manipulates.And so on, all numbers of rows are completed, i.e., entire assembly unit The elevating control of interior all lifting sticks.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing Change example.

Claims (10)

1. a kind of relief map sand table device characterized by comprising table frame is placed in several arranged in table frame in net battle array Liftable lifting stick, lifting stick includes: pneumatic lifting column, is extended downwardly and inside the pneumatic lifting column with opening Hollow cylinder chamber, hollow fixed link is intracavitary by the movable hollow cylinder that is placed in of piston sheet that top is installed, piston sheet surrounding It is in sealing contact with hollow cylinder cavity wall, and there is the port for being connected to hollow fixed link, the hollow fixation at the top of piston sheet Bar bottom is equipped with gas nozzle, and gas nozzle is connected to electric air pump by air inlet essence control device, and air inlet essence control device is connected to controller.
2. relief map sand table device according to claim 1, which is characterized in that the lifting stick presses a number of structure It is constituted at an assembly unit grouping, several assembly units tile to combine in parallel and be placed in table frame, the assembly unit packet Upper layer outline border, the lower layer's outline border positioned at bottom outside for being located at outermost layer lifting stick upper outside are included, is connected between lower layer's outline border It is connected to bottom plate, lifting stick, which is arranged in array, to be installed on bottom plate, and gas nozzle passes through bottom plate and exposes on the bottom surface of bottom plate, on It is connected in four corners by vertical vertical pole between layer outline border and lower layer's outline border.
3. relief map sand table device according to claim 2, which is characterized in that frame bottom abutting joint outside the lower layer Air inlet essence control device, the air inlet essence control device include the lifting pneumatic control stage consistent with lower layer's outline border size shape, are risen Two opposite sides of drop pneumatic control stage are provided with contour track cross bar, and neat top and bottom are vertical inside lifting pneumatic control stage It is placed with the pneumatic control group of lifting that can be moved in it, the two sides for going up and down pneumatic control group are mounted on shifting roller, move Dynamic idler wheel is placed on the track cross bar of two sides and contacts with transmission belt, at least the transmission belt of side and is mounted on the pneumatic control of lifting Mobile motor transmission connection on frame processed, the pneumatic control group of lifting has the neutral structure for vacating mobile motor seat in the plane, described Electric air pump is micro air pump, micro air pump is fixedly mounted in the pneumatic control group of lifting, micro air pump distributes several Branch's tracheae, branch's tracheae are mounted on electromagnetic gas valve on middle section, and point bronchial upper section is mounted on the pneumatic control group of lifting Top column surface is exposed on the column of top and in straight line arrangement.
4. relief map sand table device according to claim 3, which is characterized in that described point of bronchial quantity and one A horizontally-arranged elevation bar number of blocks is consistent in assembly unit, and the branch's tracheae being exposed on lifting pneumatic control group top column Perforation distribution position and each hollow bottom of fixed gas nozzle position correspond.
5. relief map sand table device according to claim 4, which is characterized in that described point of bronchial top has one A holding tank is pneumatically connected valve and is movably placed in holding tank, is pneumatically connected valve in hat shape, plate-like edge and ontology including bottom, The vertically communicated portion in the body of air passage, the bottom end of the gas nozzle are built-in with docking groove, docking groove and the sheet for being pneumatically connected valve The size of body is mutually adapted, and the top of docking groove has the venthole for being connected to hollow fixed link.
6. relief map sand table device according to claim 3, which is characterized in that lower layer's outline border is along the pneumatic control of lifting On the side frame bottom surface in the mobile direction in column processed pneumatic control group is gone up and down on the position that stick middle line is aligned and gone up and down in every row Top column both ends midline, which is equipped with, is mutually adapted corresponding photoelectricity alignment sensor.
7. a kind of relief map the sand dish controls system characterized by comprising
Sand table module is distributed side by side by several assembly units and is constituted, and each assembly unit is again by several liftable liftings Stick is distributed composition by array side by side, and each assembly unit is used for through each lifting stick by respectively required adjustable height liter It is remain stationary after drop, realizes the stereo structure sand table that there is height to rise and fall on the whole;
Total control module, for receiving the terrain data of relief map, and the number based on assembly unit and distributed intelligence by its It is divided into corresponding unit terrain data, and the distribution of unit terrain data is corresponded on corresponding assembly unit and based on component The liter of each lifting stick in every a line in each assembly unit is determined in the quantity of lifting stick and distributed intelligence in unit Elevation information is dropped, and is sent to elevating control module;
Elevating control module for converting the adjustable height information to the time of electromagnetic gas valve unlatching, and passes through electronic gas The opening/closing time of pump and several electromagnetic gas valves controls the air capacity injected in each lifting stick, and in single component unit Lifting stick is followed successively by by row and is inflated control, until the lifting stick on each assembly unit is made to keep required lifting Highly.
8. relief map the sand dish controls system according to claim 7, which is characterized in that the elevating control module, also It carries out being inflated control, and every a line liter by the capable lifting stick that is followed successively by for the transverse shifting by going up and down pneumatic control group Drop stick all passes through corresponding photoelectricity alignment sensor and realizes positioning.
9. a kind of control method of relief map sand table, which comprises the following steps:
S1, the terrain data M1 for obtaining relief map, and be respectively divided out corresponding to corresponding region by several assembly units Several unit terrain datas M2;
If S2, by unit terrain data M2 by the assembly unit corresponding to it elevation bar number of blocks and distributed intelligence be divided into Dry monomer terrain data M3, and convert thereof into lifting requirements h1 corresponding to lifting stick;
S3, h1 is converted into what electromagnetic gas valve needed to open based on gas flow corresponding to each lifting stick lifting corresponding height Time value t1;
Temporally t1 controls corresponding electromagnetic gas valve unlatching for S4, air inlet essence control device, and lifting stick is elevated to corresponding height position Holding is postponed, until each lifting stick is elevated to corresponding height, relief map is obtained on sand table.
10. relief map the sand dish controls method according to claim 9, which is characterized in that in step S4, each component list First only one air inlet essence control device, air inlet essence control device passes through the intermittent shifting of the transverse direction that can be paused, stops, by row successively to group Lifting stick in part unit carries out air inlet and rises manipulation.
CN201910677722.3A 2019-07-25 2019-07-25 A kind of relief map sand table device and its control system and method Pending CN110322774A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110660307A (en) * 2019-10-31 2020-01-07 天津大学 Entity three-dimensional digital sand table driving device and control system thereof
CN111105690A (en) * 2019-12-31 2020-05-05 齐鲁工业大学 Column type relief display device
CN111554173A (en) * 2020-05-18 2020-08-18 安阳工学院 Sand table display stand for urban and rural planning
CN111640361A (en) * 2020-06-09 2020-09-08 许昌学院 Management platform for ecological environment management
CN111862770A (en) * 2020-06-09 2020-10-30 深圳市未来十新交通科技有限公司 Device and method capable of quickly generating three-dimensional variable solid model
CN112304566A (en) * 2020-10-29 2021-02-02 西南科技大学 Three-dimensional arbitrary-form debris flow groove simulation experiment system and experiment method
CN112785949A (en) * 2021-01-22 2021-05-11 北京邮电大学 Three-dimensional scene projection method and device and three-dimensional sand table
CN113299172A (en) * 2021-05-13 2021-08-24 清华大学 Dynamic physical sand table and dynamic display control method thereof
CN114822202A (en) * 2022-04-14 2022-07-29 狮展(上海)展示服务有限公司 Dot-matrix mechanical matrix sand table modularization equipment

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390491A (en) * 1982-03-25 1983-06-28 Woodall Jerry D Three dimensional contour apparatus and method
US6257575B1 (en) * 1999-04-23 2001-07-10 Herbert A. Ortega Vertically adjustable squares on a game board assembly
JP2007003715A (en) * 2005-06-22 2007-01-11 Realviz:Kk Three dimension forming system and sand table system for same
CN102339549A (en) * 2010-07-17 2012-02-01 何仁城 Dynamic sand table
CN102855806A (en) * 2012-09-18 2013-01-02 中国水利水电科学研究院 System and method for quickly building physical model
CN105527389A (en) * 2016-03-02 2016-04-27 山东交通学院 Jack-based experiment model and method for simulating uneven settlement of foundation
US20160133163A1 (en) * 2014-11-10 2016-05-12 International Business Machines Corporation Generating a Three-Dimensional Representation of a Topography
CN107928106A (en) * 2017-05-25 2018-04-20 湖北商川云木作家居有限公司 A kind of electronic desk with air pressure support device
CN208054801U (en) * 2018-04-13 2018-11-06 厦门华楠骏业机械设备有限公司 Synchronous hydraulic lifting column improved structure
CN211087729U (en) * 2019-07-25 2020-07-24 昆明昊协科技有限公司 Miniature pneumatic lifting column and electric control pneumatic three-dimensional map sand table composed of same

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390491A (en) * 1982-03-25 1983-06-28 Woodall Jerry D Three dimensional contour apparatus and method
US6257575B1 (en) * 1999-04-23 2001-07-10 Herbert A. Ortega Vertically adjustable squares on a game board assembly
JP2007003715A (en) * 2005-06-22 2007-01-11 Realviz:Kk Three dimension forming system and sand table system for same
CN102339549A (en) * 2010-07-17 2012-02-01 何仁城 Dynamic sand table
CN102855806A (en) * 2012-09-18 2013-01-02 中国水利水电科学研究院 System and method for quickly building physical model
US20160133163A1 (en) * 2014-11-10 2016-05-12 International Business Machines Corporation Generating a Three-Dimensional Representation of a Topography
CN105527389A (en) * 2016-03-02 2016-04-27 山东交通学院 Jack-based experiment model and method for simulating uneven settlement of foundation
CN107928106A (en) * 2017-05-25 2018-04-20 湖北商川云木作家居有限公司 A kind of electronic desk with air pressure support device
CN208054801U (en) * 2018-04-13 2018-11-06 厦门华楠骏业机械设备有限公司 Synchronous hydraulic lifting column improved structure
CN211087729U (en) * 2019-07-25 2020-07-24 昆明昊协科技有限公司 Miniature pneumatic lifting column and electric control pneumatic three-dimensional map sand table composed of same

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110660307A (en) * 2019-10-31 2020-01-07 天津大学 Entity three-dimensional digital sand table driving device and control system thereof
CN111105690A (en) * 2019-12-31 2020-05-05 齐鲁工业大学 Column type relief display device
CN111105690B (en) * 2019-12-31 2022-01-07 齐鲁工业大学 Column type relief display device
CN111554173A (en) * 2020-05-18 2020-08-18 安阳工学院 Sand table display stand for urban and rural planning
CN111640361A (en) * 2020-06-09 2020-09-08 许昌学院 Management platform for ecological environment management
CN111862770A (en) * 2020-06-09 2020-10-30 深圳市未来十新交通科技有限公司 Device and method capable of quickly generating three-dimensional variable solid model
CN112304566A (en) * 2020-10-29 2021-02-02 西南科技大学 Three-dimensional arbitrary-form debris flow groove simulation experiment system and experiment method
CN112785949A (en) * 2021-01-22 2021-05-11 北京邮电大学 Three-dimensional scene projection method and device and three-dimensional sand table
CN113299172A (en) * 2021-05-13 2021-08-24 清华大学 Dynamic physical sand table and dynamic display control method thereof
CN113299172B (en) * 2021-05-13 2022-08-05 清华大学 Dynamic physical sand table and dynamic display control method thereof
CN114822202A (en) * 2022-04-14 2022-07-29 狮展(上海)展示服务有限公司 Dot-matrix mechanical matrix sand table modularization equipment

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