CN109856945A - A kind of laser hologram projection sand table producing device - Google Patents
A kind of laser hologram projection sand table producing device Download PDFInfo
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Abstract
The present invention relates to a kind of laser holograms to project sand table producing device, belongs to sand table manufacture technology field, solves the problems, such as that sand table fabrication cycle is long in the prior art, shows shortage authenticity and can not be adjusted in real time.Include: controlling terminal, for constructing laser hologram projection prediction model, and is trained, laser hologram projector parameter is sought by trained model in real time；Laser hologram projector carries out sand table projection imaging according to above-mentioned projective parameter；Binocular camera, laser ranging inductor, for data needed for acquiring above-mentioned prediction model training；Truing tool is used for position correction.The present apparatus effectively solves the instantaneity and authenticity questions of traditional sand table by machine learning and laser hologram projection；Laser hologram projection can really show that the state of simulation landforms can seek optimal projective parameter in real time, be corrected automatically to the state of projection, reach optimal projection size and effect when monitoring external environment and changing.
Description
Technical field
The present invention relates to sand table manufacture technology fields more particularly to a kind of laser hologram to project sand table producing device.
Background technique
Military sand table generally comprises two main parts: one is bottom tray, one be mountains and rivers river simulation product.
Production about mountains and rivers river is at present based on two kinds of materials, and one is plastic simulation product, and one is sands.
Sand table based on plastic simulation product needs to take the form of specific customization, carries out 3D figure to true landforms first
The drafting of paper then carries out the shape of 3D printing or injection molding to drawing, simulation product production is worked it out, then these simulation products are put
On pallet, for showing landforms to other people.This sand table, on the one hand, the preparatory period is longer, and the preparation of landforms needs to pass through 3D
The mode of printing or injection molding, needs to be prepared scene；In the state of burst, the preparation of landforms is carried out without the time,
Landforms can not adjust in time, be unable to satisfy the case where tracking to the variation of real scene.On the other hand, display area by
Limit, since landforms are all that 3D printing or mould-injection are made, to the size of plastic parts by certain requirement, and for super
Conventional size out, can also accordingly increase, while lacking reusability after use in expense, each landforms be it is unique,
Existing landforms can not be applied to other areas and be shown, and cause to waste.
Sand table based on sand covers required sand on pallet first, then according to existing drawing to each
Feature measures and marks (such as mountain range, river), and finally sand is piled up or digged pit according to mark point, is piled up
Part indicates mountains and rivers, and the part digged pit indicates rivers and creeks.This sand table, on the one hand, prepare and fabrication cycle is longer, need to true
Landforms carry out the scaling of equal proportion, and be labeled in sand table；Meanwhile the whole process of production requires manually to carry out
The production of landforms, such as sand pile up expression mountain range, and sand, which is digged pit, indicates lake.On the other hand, in scene service stage, first
Lack accuracy, same exhibition method can represent different landforms, be easy that people is allowed to give rise to misunderstanding, for example, by using the shape in sand pit
Formula can indicate lake and hawthorn landform simultaneously, need to mark to distinguish；Next lacks authenticity, and the color of sand is single,
It can not show true scene；Finally adjustment is inconvenient, and the change of landforms in use needs manually to be adjusted sand,
According to the increase of the complexity of variation and size, difficulty increases, inefficiency.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of laser hologram projects sand table producing device, it is existing to solve
There is the problem of sand table fabrication cycle is long, shows shortage authenticity and can not be adjusted in real time.
The purpose of the present invention is mainly achieved through the following technical solutions:
Provide a kind of laser hologram projection sand table producing device, comprising: controlling terminal, laser hologram projector, binocular
Camera, laser ranging inductor, truing tool；
The controlling terminal for constructing laser hologram projection prediction model, and is trained, passes through trained model
Laser hologram projector parameter is sought in real time；
The laser hologram projector, is connected with controlling terminal, carries out sand table projection according to the numerical value of above-mentioned projective parameter
Imaging；
The binocular camera, laser ranging inductor, hang on the position directly above of sand table, and and controlling terminal
It is connected, for data needed for acquiring above-mentioned prediction model training；
The truing tool has " ten " word cursor, is used for position correction.
The present invention has the beneficial effect that: present apparatus sand table manufacturing process quickly and efficiently, utilizes machine learning and laser hologram
Projection can effectively solve the problems, such as the instantaneity and authenticity questions of traditional sand table；Laser hologram projection can be opened up more really
Show the state of simulation landforms (such as mountains and rivers river etc.), while by constantly monitoring external environment, when sand table size and external exhibition
When showing that environment changes, trained model can seek optimal projective parameter in real time, carry out to the state of projection automatic
It corrects, the sand table produced reaches optimal projection size and effect.
On the basis of above scheme, the present invention has also done following improvement:
Further, the controlling terminal includes:
Data acquisition module, for data set needed for obtaining trained laser hologram projection prediction model；
Laser hologram projects prediction model building and training module, for constructing laser hologram projection sand table prediction model,
And be trained using the data set that the data acquisition module obtains, obtain trained laser hologram projection sand table prediction mould
Type；
Laser hologram projector parameter seeks module, for by the length of sand table, wide, high, depth information to be input to
Trained prediction model is stated, projective parameter is obtained；
Laser hologram projector parameter is sought the projective parameter that module is sought and is transmitted to laser by signal transmission module
Holographic projector.
Further, the data acquisition module includes: area division unit, length and width dimensions collect unit, depth size is searched
Collect unit；
The area division unit, for being divided to sand table interior zone, and by the friendship of all subregion marked off
Point is used as datum mark；
The length and width dimensions collect unit, depth size collects unit, for incuding with binocular camera, laser ranging
Device, laser hologram projector and truing tool cooperation, carry out data acquisition to each datum mark, obtain number required for training pattern
According to collection；
The data set includes plan-position coordinate, vertical position coordinate, focusing range and the clarity of datum mark.
It is further, described that data acquisition is carried out to each datum mark, comprising:
Length and width dimensions collect unit and control laser hologram projector projects " ten " word cursor, and " ten " word cursor is successively projected
In the position of each datum mark, the position of truing tool is adjusted, until the position of " ten " word of " ten " word and cursor in truing tool
Set overlapping, length and width dimensions collect the plan-position coordinate of unit record datum mark at this time, and the length and width dimensions for completing sand table are collected；
Depth size collects unit and controls laser hologram projector projects " ten " word cursor, and " ten " word cursor is successively projected
In the position of each datum mark, in the state of keeping the position overlapping of " ten " of " ten " word and cursor in truing tool, upwards/to
Lower mobile truing tool reaches optimal display effect, the depth until being somebody's turn to do " ten " word cursor in binocular camera display interface
Size collects vertical height, focusing range and the sharpness information of the unit record position, the upright position as the datum mark
Coordinate, focusing range and clarity are completed sand table depth size and are collected.
Further, the length and width dimensions collect unit, are also used to, when " ten " word of " ten " word and cursor in truing tool
Position overlapping when, control laser ranging inductor further calibrated, obtain datum mark calibrate after plan-position coordinate
And record, the length and width dimensions for completing sand table are collected.
Further, the laser hologram projection prediction model building and training module, comprising:
Parameter initialization unit carries out initialization process to network weight and biasing, and concentrates at random in training data
Select the first input sample；
Parameter processing unit carries out neuronal activation forward-propagating, is carried out by hidden layer to above-mentioned first input sample
Weight and bias treatment, and seek the result and error of output layer；
Parameter adjustment unit carries out backpropagation according to above-mentioned error, is adjusted to network weight and biasing；
Whether training monitoring unit, terminate according to preset termination condition training of judgement.
Further, the laser hologram projector parameter seeks module, comprising:
High complexity zone marker unit, the region in complexity high in true landforms region and current sand table is compared
It is right, the point region that high complexity is met in sand table is marked；
Weight determining unit determines position, the quantity, the power of requirement degree in the point region of the above-mentioned high complexity marked
Weight；
Projective parameter seeks unit, according to the weight of the length of sand table, depth information and above-mentioned determination, utilizes training
Good model seeks focusing range and clarity.
Further, the projective parameter seeks unit, after the length, depth information of acquisition sand table, in building
It scans for matching in existing data set, when matching consistent, then directly chooses corresponding focusing range and sharpness information.
Further, described device further includes landforms monitoring sensor, for carrying out real-time monitoring to true geomorphology information
And controlling terminal is passed to, when controlling terminal judges that landforms change, by the interval time of landforms variation and preset benchmark
It compares, when the interval time of landforms variation being less than benchmark, then ignores；It is greater than base when the interval time of landforms variation
On time, then laser hologram projector parameter seeks module and carries out parameter prediction to the high complexity region of landforms again, obtains
To new focusing range and clarity parameter.
Further, the laser hologram projector includes by three color laser of red, green, blue, through optical element and processing chip
Expand after be transmitted to X prism and integrate three beams of laser, after being integrated according to focusing range and clarity by projection objective
Laser be transmitted on sand table.
It in the present invention, can also be combined with each other between above-mentioned each technical solution, to realize more preferred assembled schemes.This
Other feature and advantage of invention will illustrate in the following description, also, certain advantages can become from specification it is aobvious and
It is clear to, or understand through the implementation of the invention.The objectives and other advantages of the invention can by specification, claims with
And it is achieved and obtained in specifically noted content in attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is that laser hologram projects sand table producing device structure chart in the embodiment of the present invention；
Fig. 2 is sand table region division and truing tool schematic diagram in the embodiment of the present invention；
Fig. 3 is machine learning neural network structure schematic diagram in the embodiment of the present invention；
Fig. 4 is to be trained flow chart to the prediction model of building in the embodiment of the present invention；
Fig. 5 is to seek projective parameter flow chart in the embodiment of the present invention；
Fig. 6 is laser-projector schematic illustration in the embodiment of the present invention.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention, it is not intended to limit the scope of the present invention.
A specific embodiment of the invention discloses a kind of laser hologram projection sand table producing device.As shown in Figure 1,
It include: controlling terminal, laser hologram projector, binocular camera, laser ranging inductor, truing tool；
Controlling terminal for constructing laser hologram projection sand table prediction model, and is trained, passes through trained model
Laser hologram projector parameter is sought in real time；
Laser hologram projector, is connected with controlling terminal, carries out sand table projection imaging according to the numerical value of above-mentioned projective parameter；
Binocular camera, laser ranging inductor, hang on the position directly above of sand table, and with controlling terminal phase
Even, for data needed for acquiring above-mentioned prediction model training；
Truing tool has " ten " word cursor, is used for position correction.
Compared with prior art, laser hologram projects sand table producing device in the present embodiment, cooperates between each equipment,
Sand table manufacturing process quickly and efficiently, is asked by the instantaneity that machine learning and laser hologram projection can effectively solve traditional sand table
Topic and authenticity questions；Laser hologram projection can more really show the state of simulation landforms (such as mountains and rivers river etc.),
Simultaneously by constantly monitoring external environment, when sand table size and external show surroundings change, trained model can be with
Optimal projective parameter is sought in real time, the state of projection is corrected automatically, and the sand table produced reaches optimal projection ruler
Very little and effect.
Specifically, the present apparatus gives full play to the advantage of artificial intelligence and laser hologram shadow casting technique, and controlling terminal passes through
Machine learning is automatic and immediately obtains optimal parametric solution, and laser hologram projects more true simulation shows actual scene.
Controlling terminal includes: data acquisition module, laser hologram projection prediction model building and training module, the throwing of laser hologram projector
Shadow parameter seeks module, signal transmission module；Wherein,
Data acquisition module, for data set needed for obtaining trained laser hologram projection prediction model；
Laser hologram projects prediction model building and training module, for constructing laser hologram projection sand table prediction model,
And be trained using the data set that the data acquisition module obtains, obtain trained laser hologram projection sand table prediction mould
Type；
Laser hologram projector parameter seeks module, for by the length of sand table, wide, high, the information such as depth to be input to
Above-mentioned trained prediction model obtains projective parameter (focusing range and definition values etc.).
Signal transmission module, for laser hologram projector, binocular camera, laser ranging inductor and controlling terminal it
Between signal transmission, by laser hologram projector parameter seek the projections such as focusing range and the definition values that module is sought ginseng
Number is transmitted to laser hologram projector, carries out projection imaging.
Further, data acquisition module includes: area division unit, length and width dimensions collect unit, depth size collects list
Member, each unit carry out data by cooperating with laser hologram projector, binocular camera, laser ranging inductor, truing tool
Acquisition obtains the data set containing mass data (this data set has target value).When carrying out real data acquisition: area
Domain division unit divides sand table interior zone, and using the intersection point of all subregion marked off as datum mark；Binocular is taken the photograph
As head, laser ranging inductor and laser hologram projector, the overall region of sand table is locked, and position above-mentioned all datum marks；
Finally, length and width dimensions collect unit and depth size collects unit and controls binocular camera, laser ranging inductor respectively and swash
Light holographic projector, and cooperate truing tool, data acquisition successively is carried out to each datum mark, obtains number required for training pattern
According to collection.
Specifically, area division unit divides sand table interior zone, and by the intersection point of all subregion marked off
As datum mark.In the present embodiment by taking rectangle sand table as an example, as shown in Fig. 2, the sand table frame of pre-production is set (not prefabricated
When sand table frame, can have been built with brick clay or level land under dig 15~25 centimetres), and it is consistent with existing place as far as possible, spread in sand table frame
3-5CM humidity sandy soil appropriate (are picked up sandy soil with hand, agglomerating to have held, leaving behind to dissipate is advisable), and real with plank drag concora crush,
Datum level as sand table.Area division unit divides in sand table region automatically, and division mode can be according to the shape of sand table
Shape and projection show that required precision is selected, and illustratively, rectangle sand table are separated 20 sub- squares according to the matrix etc. of 4*5
Shape, and using 12 intersection points of rectangle inside sand table as datum mark.
After completing region division, can cover sand table position installation binocular camera, laser ranging inductor and
Laser hologram projector (is being typically mounted at rectangle sand table central point just using the overall region of binocular camera locking sand table
Top), and above-mentioned 12 datum marks are oriented, controlling terminal control laser hologram projector (is typically mounted at and sand table plane
The position at angle at 45 °) so that the projection clarity in sand table datum level is best, and cooperate truing tool, carries out sand table size number
According to (including: length and width dimensions, depth size) is collected and recorded, summarize to obtain " -12 position-degree of focus of sand table size/clear
Between degree " data set.
Length and width dimensions collect unit, with binocular camera, laser ranging inductor, laser hologram projector and truing tool
Cooperation, the length and width dimensions for completing sand table are collected；Specifically, laser hologram projector projects " ten " word cursor is controlled, by " ten " word
Cursor is incident upon the position of " 1 " point, and cursor color to be calibrated at this time is red.Calibration personnel holds truing tool, will
The position of " ten " word of " ten " word and cursor in truing tool is overlapped, and the focal length value of binocular camera is kept fixed, control
Laser ranging inductor processed (being mounted on right above sand table) is calibrated, the position coordinates of record " 1 " point (using sand table surface as
Datum level).It should be noted that further being calibrated using laser ranging inductor, can correct on local detail
Dimension data, so that the location information of the benchmark of acquisition is more accurate；It is finished if the position of " 1 " point carries out calibration, by light
Mark color is changed to green, indicates that the position of the point has been collected and finishes.When " 1 " point position correction finish, then control laser
Holographic projector " ten " word cursor is moved to the position of " " at 2 points, and calibrating mode is same as above, and so on, until 12 datum marks
Data are all collected and are finished, then the length and width dimensions collection of sand table finishes.
Depth size collects unit, on the basis of completing the collection of length and width dimensions, throws with binocular camera, laser hologram
Shadow instrument and truing tool cooperation, carry out the collection of sand table height and depth.Controlling terminal controls laser hologram projector projects
" ten " word cursor, is successively incident upon the position of each datum mark by " ten " word cursor, and operator keeps " ten " in truing tool
The state of the position overlapping of " ten " of word and cursor, the mobile truing tool of up/down, until in binocular camera display interface
In should " ten " word cursor reach optimal display effect, depth size collect the unit record position vertical height (relative to
Datum level), focusing range and sharpness information, as the vertical position coordinate of the datum mark, focusing range and clarity.
In specific work process, the collection of depth size can be divided into height collection and collect two kinds of situations with depth, carry out
When height is collected: depth size collects unit control laser-projector and projects " ten " word cursor, and " ten " word cursor is incident upon " 1 "
The position of point, and cursor color to be calibrated at this time is red.Calibration personnel holds truing tool, will be in truing tool
The position of " ten " of " ten " word and cursor is overlapped, and is moved up simultaneously, pay attention to during moving up require " ten " word and
Cursor " ten " keeps the state of overlapping.As " ten " in truing tool are constantly raised, in the position of " 1 " point, pass through binocular
Camera carries out calibration positioning, searches out optimal display effect (display is clearest) in height, obtains the height value of the point
The as height coordinate (binocular camera automatic positioning) of " 1 " point；Depth size collects unit for cursor color from red at this time
Become green, indicates the data collection for completing " 1 " point height.It collects and finishes when the position height of " 1 " point, then it is mobile to control cursor
Want the position of " " at 2 points, collection mode is same as above, and so on, it all collects and finishes until the data of 12 points, then the height of sand table
Collection finishes.When carrying out depth collection: depth size collects unit control laser-projector and projects " ten " word cursor, by " ten "
Word cursor is incident upon the position of " 1 " point, and cursor color to be calibrated at this time is red.Operator digs in " 1 " point region
One dell then holds truing tool, the position of " ten " word of " ten " word and cursor in truing tool is overlapped, together
When to dell bottom direction, move down, pay attention to requiring " ten " word and cursor " ten " to keep overlapping during moving down
State.As " ten " in truing tool are constantly moved down, by binocular camera in the position of " 1 " point, found in depth
To optimal display effect.Depth size collects unit and cursor color is become green from red at this time, indicates that completion " 1 " point is deep
The data collection of degree.When the depth collection of " 1 " point finishes, then cursor is moved to the position of " " at 2 points, and collection mode is same as above,
And so on, it all collects and finishes until the data of 12 points, then the depth collection of sand table finishes；Obtaining above-mentioned height or depth
After spending signal, depth size collects unit combination laser-projector in datum level focusing range and clarity, and it is optimal to seek this
The focusing range and sharpness information of display position, focusing range and clarity as corresponding datum mark.In addition, when laser is thrown
When shadow instrument carries out true environment displaying, in the feux rouges, green light and blue light information of above-mentioned each datum mark, data collection under also can record
Statistics is as shown in table 1.
1 data collection statistical form of table:
Laser hologram projects prediction model building and training module, including prediction model construction unit, is used for laser hologram
Project the building of sand table prediction model；By the model of building, when sand table size and external environment change, in real time
Optimal laser hologram projective parameter data are obtained, optimal display effect is reached.Prediction model construction unit building prediction mould
Type uses the machine learning algorithm of supervised, can construct prediction model by a variety of machine learning algorithms, in the present embodiment,
The neural network of building is as shown in figure 3, can automatically derive degree of focus/clarity by inputting sand table size in the model
Numerical information.
Laser hologram project prediction model building and training module further include: parameter initialization unit, parameter processing unit,
Parameter adjustment unit, training monitoring unit；The training dataset obtained using data acquisition module is to prediction model construction unit
The model of building is trained, in order to which the value for returning to prediction model will be to spy as far as possible in target value, training process
The weight of sign does continuous adjustment, until the value of prediction model return meets required precision；Specifically, as shown in figure 4,
Parameter initialization unit, in initial phase, to network weight and biasing one random number of setting, and in above-mentioned number
First input sample is selected at random according to concentrating.In machine-learning process, the part of this network weight and biasing can be with
Difference between actual value and target value is constantly adjusted.
Parameter processing unit carries out neuronal activation forward-propagating, carries out weight to above-mentioned input sample by hidden layer
And bias treatment, and seek the result and expected error of output layer；In the neural network of Fig. 3,Indicate the i-th of l layers
The weight that l layers are denoted as between Ll, L1 and L2 layers is by the weight between a node and l+1 layers of j-th of node
Weight between L2 and L3 layers is Represent the bias term of l+1 i-th of node of layer；WithIndicate l+1 layers of jth
The input value of a node.As l=1, J-th of node of l+1 layer is represented to pass through
Output valve after activation primitive θ (x).Formula is as follows:
This completes primary training, have obtained output result hW,b(x)。
Parameter adjustment unit carries out backpropagation according to error, and adjusts network weight and biasing.Wherein, for output
Layer, Errj=Oj(1-Oj)(Tj-Oj) for hidden layer, Errj=Oj(1-Oj)∑Errkwjk；Weight updates, Δ Wij=(l)
ErrjOj, Wij'=Wij+ΔWij；Biasing updates, Δ θj=(l) Errj, θj=j+ Δ θj。
Whether training monitoring unit, training of judgement terminate, and according to pre-set trained termination condition, whether training of judgement
It completes, illustratively, when the update of weight is lower than some threshold value, the error rate of prediction is lower than some threshold value, it is default certain to reach
The conditions such as cycle-index when, terminate training, otherwise continue to choose new sample being trained.
Laser hologram projector parameter seeks module, after inputting the length of sand table, depth information, utilizes training
Good model seeks laser imager imaging parameters, as shown in figure 5, when the length of sand table, depth change,
Only need the dimension information of typing sand table or length, the depth data of 12 datum marks, laser hologram projector
Parameter seeks module can calculate the parameter of focusing range and clarity automatically, for example, in table 1 x2 and y2 parameter；And it will projection
Parameter (feux rouges, green light, blue light, focusing range, clarity) is packaged, and is transferred to laser hologram projection by signal transmission module
Instrument, laser-projector are projected on sand table according to the supplemental characteristic of projection.
In order to improve the authenticity of laser projection sand table displaying, degree of focus and clarity are being obtained by trained model
Before equal projective parameters, laser hologram projector parameter, which seeks module, can choose the region of high complexity and be added
Power, to improve the prediction effect of prediction model, the module is further can include: high complexity zone marker unit, high complexity
Weight determining unit, the projective parameter in degree region seek unit；Specifically,
High complexity zone marker unit will need the region of high complexity and current sand table in true landforms to be simulated
Region is compared, and the point region that high complexity is met in sand table is marked.Such as high complexity region is 1 point,
Or 4,5 points ... (note, if required to some specific region, before processing terminal carries out automatic comparison, people
It is high complexity region to mark this region).
Weight determining unit determines the position in the point region of high complexity, quantity, it is desirable that the power of the key factors such as degree
Weight.In view of simulation true environment in each region complexity it is distinct, need to integrate corresponding key factor to confirm that
Clarity and focusing range require some highest point or certain several point, reach optimal drop shadow effect.
Projective parameter seeks unit, wide according to the length of sand table, high, the weight of depth and determination, using above-mentioned trained
The value of prediction model, the focusing range and clarity that included to the region covered is handled, and finds most suitable focusing
Range and definition values.For example, if the region selected after weight for point 1 and point 2 position, as shown in table 2, then to X1,
X2 and Y1, Y2 value are handled, and corresponding X value and Y value are obtained.
2 focusing range of table and clarity are sought
It should be noted that in order to improve real-time, it is wide in the length of sand table, it is high, when depth changes, projection
Parameter seeks unit and scans for matching in the existing database of building first, when matching consistent, then directly selection pair
The focusing range and sharpness information answered.
Laser hologram projector, the projective parameter numerical value that real-time reception signal transmission module is sent carry out sand table and project into
Picture.As shown in fig. 6, laser hologram projector uses tricolor laser technology in the present embodiment, transmitted using laser beam
Picture, wherein the optical component of laser-projector is mainly by redgreenblue light valve, conjunction beam X prism, projection lens and driving light
Valve.There is three color laser of red, green, blue in laser hologram projector.Laser passes through corresponding optical element and processing in machine
It is transmitted to X prism again after the expanding of chip to integrate three beams of laser, is then again transmitted to the laser after integration by projection objective
On projection screen, completes entire laser hologram projector and show process.
It needs to illustrate when landforms change, to carry out, it is emphasized that poor in order to solve traditional sand table instantaneity
The problem of adjusting in real time, can not reflecting true landforms.Device further includes (illustratively, landforms monitor sensor in the present embodiment
Video or Image Acquisition transmission device), landforms monitor sensor and carry out real-time monitoring to true geomorphology information and pass to control
Terminal processed, controlling terminal judge whether geomorphology information changes, and when landforms change, are according to preset condition judgement
It is no that projection is updated；Specifically, preset on the basis of a time interval that (time interval can be wanted according to actual precision
Ask, hardware condition, sand table scale etc. are set), when monitoring that landforms change, by the interval time of landforms variation with
Benchmark is compared, if the interval time of landforms variation is less than benchmark, is ignored；If the interval time of landforms variation is greater than
Benchmark, then laser hologram projector parameter seeks the ginseng of module again to landforms whole region or the progress of high complexity region
Number prediction, obtains new focusing range and clarity parameter, and is sent to laser hologram projector and carries out projection imaging.
The present apparatus increases artificial intelligence and laser hologram imaging technique in military sand table production, can solve current sand table
Brought problem；Laser hologram imaging technique can solve the problem of accuracy and authenticity.Again on the basis of this, the present apparatus is also
With range measurement, the interaction functions such as position mark, by laser ranging inductor, in available sand table between two o'clock away from
From, and point-of-interest is demarcated, the information on more battlefields can be obtained immediately.
It will be understood by those skilled in the art that realizing all or part of the process of above-described embodiment method, meter can be passed through
Calculation machine program instruction relevant hardware is completed, and the program can be stored in computer readable storage medium.Wherein, described
Computer readable storage medium is disk, CD, read-only memory or random access memory etc..
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of laser hologram projects sand table producing device characterized by comprising controlling terminal, laser hologram projector, double
Mesh camera, laser ranging inductor, truing tool；
The controlling terminal for constructing laser hologram projection prediction model, and is trained, real-time by trained model
Seek laser hologram projector parameter；
The laser hologram projector, is connected with controlling terminal, carries out sand table projection imaging according to the numerical value of above-mentioned projective parameter；
The binocular camera, laser ranging inductor, hang on the position directly above of sand table, and with controlling terminal phase
Even, for data needed for acquiring above-mentioned prediction model training；
The truing tool has " ten " word cursor, is used for position correction.
2. the apparatus according to claim 1, which is characterized in that the controlling terminal includes:
Data acquisition module, for data set needed for obtaining trained laser hologram projection prediction model；
Laser hologram projects prediction model building and training module, for constructing laser hologram projection sand table prediction model, and benefit
It is trained with the data set that the data acquisition module obtains, obtains trained laser hologram projection sand table prediction model；
Laser hologram projector parameter seeks module, for by the length of sand table, wide, high, depth information to be input to above-mentioned instruction
The prediction model perfected, obtains projective parameter；
Laser hologram projector parameter is sought the projective parameter that module is sought and is transmitted to laser hologram by signal transmission module
Projector.
3. the apparatus of claim 2, which is characterized in that the data acquisition module includes: area division unit, length
Wide size collects unit, depth size collects unit；
The area division unit is made for dividing to sand table interior zone, and by the intersection point of all subregion marked off
On the basis of point；
The length and width dimensions collect unit, depth size collects unit, for binocular camera, laser ranging inductor, swash
Light holographic projector and truing tool cooperation, carry out data acquisition to each datum mark, obtain data set required for training pattern；
The data set includes plan-position coordinate, vertical position coordinate, focusing range and the clarity of datum mark.
4. device according to claim 3, which is characterized in that described to carry out data acquisition to each datum mark, comprising:
Length and width dimensions collect unit and control laser hologram projector projects " ten " word cursor, and " ten " word cursor is successively incident upon respectively
The position of datum mark adjusts the position of truing tool, until the position weight of " ten " word of " ten " word and cursor in truing tool
Folded, length and width dimensions collect the plan-position coordinate of unit record datum mark at this time, and the length and width dimensions for completing sand table are collected；
Depth size collects unit and controls laser hologram projector projects " ten " word cursor, and " ten " word cursor is successively incident upon respectively
The position of datum mark, in the state of keeping the position overlapping of " ten " of " ten " word and cursor in truing tool, up/down is moved
Dynamic truing tool reaches optimal display effect, depth size until being somebody's turn to do " ten " word cursor in binocular camera display interface
Collect the unit record position vertical height, focusing range and sharpness information, as the datum mark vertical position coordinate,
Focusing range and clarity are completed sand table depth size and are collected.
5. device according to claim 4, which is characterized in that the length and width dimensions collect unit, are also used to, when calibration work
When the position overlapping of " ten " word of " ten " word and cursor in tool, control laser ranging inductor is further calibrated, and is obtained
Datum mark calibration after plan-position coordinate and record, complete sand table length and width dimensions collect.
6. device according to claim 5, which is characterized in that the laser hologram projection prediction model building and training mould
Block, comprising:
Parameter initialization unit carries out initialization process to network weight and biasing, and selects at random in training data concentration
First input sample；
Parameter processing unit carries out neuronal activation forward-propagating, carries out weight to above-mentioned first input sample by hidden layer
And bias treatment, and seek the result and error of output layer；
Parameter adjustment unit carries out backpropagation according to above-mentioned error, is adjusted to network weight and biasing；
Whether training monitoring unit, terminate according to preset termination condition training of judgement.
7. device according to claim 6, which is characterized in that the laser hologram projector parameter seeks module,
Include:
High complexity zone marker unit, the region in complexity high in true landforms region and current sand table is compared, right
The point region for meeting high complexity in sand table is marked；
Weight determining unit determines position, the quantity, the weight of requirement degree in the point region of the above-mentioned high complexity marked；
Projective parameter seeks unit, and according to the weight of the length of sand table, depth information and above-mentioned determination, utilization is trained
Model seeks focusing range and clarity.
8. device according to claim 6 or 7, which is characterized in that the projective parameter seeks unit, is obtaining sand table
It after length, depth information, scans for matching in the existing data set of building, when matching consistent, then directly select
Take corresponding focusing range and sharpness information.
9. device according to claim 8, which is characterized in that described device further include landforms monitoring sensor, for pair
True geomorphology information carries out real-time monitoring and passes to controlling terminal, when controlling terminal judges that landforms change, by landforms
The interval time of variation compares with preset benchmark, when the interval time of landforms variation being less than benchmark, then ignores；
When the interval time of landforms variation being greater than benchmark, then laser hologram projector parameter seeks module again to the height of landforms
Complexity region carries out parameter prediction, obtains new focusing range and clarity parameter.
10. device according to claim 9, which is characterized in that the laser hologram projector includes by red, green, blue three
Color laser is transmitted to X prism after optical element and processing the expanding of chip and integrates three beams of laser, according to focusing range
The laser after integration is transmitted on sand table by projection objective with clarity.
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