CN110779380B - Method for direct aiming and indirect aiming laser system - Google Patents
Method for direct aiming and indirect aiming laser system Download PDFInfo
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- CN110779380B CN110779380B CN201911028013.9A CN201911028013A CN110779380B CN 110779380 B CN110779380 B CN 110779380B CN 201911028013 A CN201911028013 A CN 201911028013A CN 110779380 B CN110779380 B CN 110779380B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A33/00—Adaptations for training; Gun simulators
- F41A33/02—Light- or radiation-emitting guns ; Light- or radiation-sensitive guns; Cartridges carrying light emitting sources, e.g. laser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A33/00—Adaptations for training; Gun simulators
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- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
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- G09B9/003—Simulators for teaching or training purposes for military purposes and tactics
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Abstract
The invention discloses a method of a direct-aiming and indirect-aiming laser system, which comprises a direct-aiming laser and an indirect-aiming laser, wherein the direct-aiming laser comprises wavelength and power selection, a laser receiving unit, zooming laser emission and self-adaptive laser coding and decoding, wherein geometric loss and atmospheric loss are generated in the process from laser emission to laser reception, the laser reception adopts dual-mode reception, namely 1550nm and 808nm-980 wavelengths are supported, interconnection and intercommunication of third-party equipment can be supported, the self-adaptive laser coding and decoding technology adopts a mode of automatically adjusting the speed according to a target distance, and the indirect-aiming laser core principle obtains parameter input through a direction angle sensor, a pitch angle sensor, an inclination angle sensor, a Beidou positioning sensor, manual setting of medicine loading amount, bullet types and the like which are fixed on weapon equipment, and comprehensively processes and forms damage data to simulate explosion damage of weapons.
Description
Technical Field
The invention relates to a method of a laser system, in particular to a method of a direct aiming laser system and a method of an indirect aiming laser system.
Background
The laser emitter is arranged on the direct-aiming weapon, and the laser emitter is used for emitting laser to replace live ammunition, so that the laser emitter is an effective means for carrying out live-action confrontation training by the army at present, and the indirect-aiming artillery combat training is simulated by adopting a mode of several generations of ammunition in the live-action confrontation training. If the handheld terminal device is used for sending information such as the specifications of the indirect artillery, the transmitting instruction and the like to the indirect aiming simulator through the wireless communication system, the mode has the defects that the use flow of a real weapon cannot be simulated really and the fighting skill of a fighter cannot be examined quantitatively in actual use and the like.
Disclosure of Invention
The invention aims to provide a method for a direct aiming laser system and a indirect aiming laser system, which has the advantages of comprehensively processing and forming damage data and simulating the explosion damage of weapons.
In order to achieve the purpose, the invention provides the following technical scheme: a direct aiming and indirect aiming laser system comprises a direct aiming laser and an indirect aiming laser, wherein the direct aiming laser comprises wavelength and power selection, a laser receiving unit, zooming laser emission and a self-adaptive laser coding and decoding, and geometric loss and atmospheric loss are generated in the process from laser emission to laser reception;
the wavelength and power selection: the 1550nm far infrared laser is located in the atmospheric transmission window, the absorption and scattering of the laser are only 1/50 output by 1.06um laser, the contrast with the background is large, the laser is attractive in the application of laser radar, target identification and the like, and the energy of the band in nature is far lower than that of the near infrared band. The receiving sensitivity of the receiving device to near infrared and visible light is low;
a laser receiving device: the light-sensitive device of the indium gallium arsenic detector is selected, for the wave band, seven receiving surfaces can distinguish laser beams from different directions, and the damage effects of different weapons can be better distinguished by matching with coding management;
the zooming laser emission: according to different action distances, damage effects and target distances of simulated weapons, the optical system adopts a variable focus mode to support delivery fixed focus according to different weapon types, and the heavy weapons adopt automatic zoom;
the self-adaptive laser coding and decoding: the length of each string of codes is set, each pulse is transmitted in a variable-rate transmitting mode, a simple system adopts a high-rate to low-rate cyclic transmitting mode, and a high-grade system adopts a mode of automatically adjusting the rate according to the target distance, so that the laser transmitting power is improved, and the coding rate is reduced;
the geometric loss is as follows: the receiving device can not be distributed on the whole body, can only be distributed at a proper position, simulates the damage effect to amplify the laser coverage surface, uses a larger light spot to cover a smaller laser sensor, is the laser power loss caused between the larger laser coverage surface and the smaller laser sensor, and has the following quantitative data mode:
log laser coverage area/receiving device area dbm; (1)
the receiving device not only needs to detect the intensity of the laser signal, but also needs to detect and distinguish the modulated pulse code in the coded laser, the area of the detector is inversely proportional to the frequency responsivity of the detector,
F＝1/c (2)
c is junction capacitance of the detector, the larger the area is, the higher the capacitance value is, the transmission pulse rate has no analysis of the minimum requirement, if the response time of the weapon is temporarily in the level of 0.5 second, the transmission pulse code per second is more than 4 frames;
the method of the system comprises the following steps:
s1: establishing a weapon power field three-dimensional visualization method:
inputting 2D information of the projectile body: simplifying and processing the grenade model to neglect calculating the unnecessary size information, extracting the necessary size information, making the grenade parameter information into parameter templates, and making each type of grenade into a type of template, wherein the main size information comprises: the method comprises the following steps that the diameter, the thickness and the material of a projectile body, a generatrix equation, the length, the wall thickness and the material of the projectile body, the diameter, the wall thickness and the material of a projectile head, the whole length of the projectile body and the relevant relation among all sizes are obtained, namely, the relevant size can be changed when one size is changed, the fragment power field of the grenade can be distributed and calculated after basic information of the projectile is obtained, a parameter-interface real-time data transmission technology is used, the core of the technology is that information input by a user is sent to a scene in real time in the form of signals, and image items in the scene are redrawn according to a drawing algorithm after the scene receives the change of the information, so that the parameter-interface real-time linkage is realized;
mapping projectile 3D information: mapping 2D plane information in the parameter template to a 3D scene, extracting point, line and plane information in the 2D plane map, converting the information into a data set, mapping the data set to a target through a function, and placing the target in the 3D scene to finish the conversion of 2D data to 3D data;
s2: establishing a shock wave power field three-dimensional visualization method:
the method is suitable for processing experimental data, and is characterized in that pressure information of shock waves at space points is stored in a point cloud form, each point in the point cloud not only stores position information (x, y, z) but also contains scalar quantity information and vector information, so that data in different sections can be conveniently provided with different colors;
the other method is to store the scalar information of the overpressure and specific impulse of the shock wave at the same distance from the center of the explosion, and the direction is far away from the center of the explosion, so that only the overpressure value of the shock wave at the distance L from the center of the explosion of the shock wave field needs to be stored, and the method is suitable for establishing the display of the power field by using an empirical formula:
s3: calculating the projectile mass distribution and mapping the result to a 3D scene: obtaining the total number and the mass distribution of the fragments through a power field mathematical model, endowing quality information to each fragment through Monte Carlo, storing the obtained fragment information into a list, and numbering each fragment;
solving the position of the fragments on the planar projectile body according to the 2D information of the projectile body, storing the obtained coordinate point information into a list, obtaining the position coordinate points of the projectile body in a 3D space through coordinate conversion, associating the point coordinates storing the 3D information into the fragment information list to obtain the distribution list of the fragments in the space, and finally obtaining the initial position information and the quality information of the fragments of the grenade;
s4: calculating the initial speed of the fragment and endowing the initial speed of the fragment to the fragment; traversing the fragment information list to calculate initial information of each fragment and storing a calculation result into a fragment class, wherein each fragment comprises initial position information, quality information, initial speed information and fragment speed direction information, the direction information of the fragment on a plane is calculated when the fragment direction information is calculated, and then the direction information of the fragment on a projectile body is obtained through rotation transformation of a matrix around a central shaft;
s5: calculating and displaying the parameters of the static explosion motion of the broken pieces in real time: on the basis of the acquired fragment information, calculating the spatial position of each fragment after a certain time interval, storing the spatial positions of all fragments at the time t, and displaying the fragment flying process by sequentially loading the fragment positions at all times to display the force field of the static rupture disk;
s6: calculating and displaying the dynamic explosion motion parameters of the fragments in real time: the dynamic explosion motion parameters only need to be superposed with projectile velocity vectors on the basis of static explosion, and other calculations are consistent with the force field of the static explosion piece;
s7: analyzing target vulnerability: establishing a target model of a typical infantry combat tank and a gunship according to the existing data, and determining the geometric dimension of a target;
constructing a target damage tree and a key component effect model: constructing a logical relation between each functional component and the whole machine function for a typical infantry combat tank and a gunship, establishing a damage tree model by adopting a deduction method, performing component weight analysis by adopting a fuzzy analysis method and an analytic hierarchy process, acquiring a key component, and constructing an effect model for the key component;
study of target damage criteria: according to a power field model obtained by power analysis of a warhead, the types and the action ranges of the damage elements are determined, the damage effect of the damage elements on a target key component is analyzed through simulation and experiments, and damage criterion functions of different damage elements on a target are constructed according to the analysis results;
s8: development of damage effect analysis program
The damage effect platform architecture: determining a damage efficiency characterization method of a projectile on a target, determining the projectile power, a data interface of a target vulnerability model, bullet meeting data definition and an interface mode, and determining a calculation process and a specific calculation method of a damage effect; based on the analysis framework, various projectile bodies can damage a specific target;
analyzing and verifying damage efficiency: determining the damage effect calculation file output mode, carrying out mass analysis of various projectiles on the target damage efficiency, and verifying the design related test of individual working conditions.
Furthermore, the indirect aiming laser obtains the following parameter input through a direction angle sensor, a pitch angle sensor, an inclination angle sensor, a Beidou positioning sensor, a manually set charging amount, a bullet type and the like which are fixed on the weapon equipment, obtains parameters such as GCS2000 coordinates, a pitch angle, an inclination angle, a direction angle, bullet types, fuzes, a medicine temperature, a medicine number and the like through a big data processing platform, obtains damage model basic data and relevant external trajectory parameters, meteorological information, and calculated impact point personnel, equipment, material and equipment conditions, displays the conditions through a multidimensional situation visualization real soldier engagement system, and analyzes historical data through big data.
Furthermore, a weapon simulator terminal is established by indirect aiming laser, training data such as RID, PID identity number, dead-live state, hit part, hit time and the like of the weapon countermeasure simulator can be collected in real time through a communication base station and main control software in the drilling process, the data are automatically stored, and support can be provided for drilling effect evaluation through situation playback or battle damage statistics.
Further, the weapon simulator terminal comprises a mortar, a duromer, a traction artillery, a self-propelled artillery, an inter-aiming landing point display and an artillery reconnaissance simulation explosion point indicator.
Compared with the prior art, the invention has the beneficial effects that:
the method of the direct aiming and indirect aiming laser system is characterized in that the emission wavelength of direct aiming laser selects 1550nm far infrared laser which is internationally recognized and safe; the laser receiving adopts dual-mode receiving, namely supporting 1550nm and supporting 808nm-980 wavelengths, can support interconnection and intercommunication of third-party equipment, adopts a self-adaptive laser coding and decoding technology, obtains parameter input through a direction angle sensor, a pitch angle sensor, an inclination angle sensor, a Beidou positioning sensor, manually set charging quantity, bullet types and the like fixed on weapon equipment according to a mode of automatically adjusting the speed of a target distance by an inter-aiming laser core principle, comprehensively processes the parameter input to form damage data, and simulates the explosion damage of weapons.
Drawings
FIG. 1 is a graph showing the photoelectric response characteristic of an InGaAs detector according to the present invention;
FIG. 2 is a schematic diagram of the present invention;
FIG. 3 is a flow chart of a fragmentation power field mathematical model calculation of the present invention;
figure 4 is a grenade parameter template display area of the present invention;
FIG. 5 is a diagram of the mapping of 2D plane information to 3D scene effects according to the present invention;
figure 6 is a graph of the position distribution of the fragments of the invention on the surface of a grenade;
FIG. 7 is an initial distribution of the fragments of the present invention on the projectile;
FIG. 8 is a spatial pattern of movement of the fragments of the present invention;
FIG. 9 is a force field diagram of a static rupture disk of the present invention;
FIG. 10 is a power field diagram of a dynamic rupture disk of the present invention;
FIG. 11 is a flow chart of a shockwave power field mathematical model calculation of the present invention.
Detailed Description
The technical scheme in the embodiment of the invention will be made clear below by combining the attached drawings in the embodiment of the invention; fully described, it is to be understood that the described embodiments are merely exemplary of some, but not all, embodiments of the invention and that all other embodiments, which can be derived by one of ordinary skill in the art based on the described embodiments without inventive faculty, are within the scope of the invention.
Referring to fig. 1, a method of a direct-aiming and indirect-aiming laser system includes a direct-aiming laser and an indirect-aiming laser, wherein the direct-aiming laser includes wavelength and power selection, a laser receiving unit, zooming laser emission and adaptive laser encoding and decoding, and geometric loss and atmospheric loss are generated in the process from laser emission to laser reception;
wavelength and power selection: the 1550nm far infrared laser is located in the atmospheric transmission window, the absorption and scattering of the laser are only 1/50 output by 1.06um laser, the contrast with the background is large, the laser is attractive in the application of laser radar, target identification and the like, and the energy of the band in nature is far lower than that of the near infrared band. The receiving sensitivity of the receiving device to near infrared and visible light is low;
a laser receiving device: the light-sensitive device of the indium gallium arsenic detector is selected, for the wave band, seven receiving surfaces can distinguish laser beams from different directions, and the damage effects of different weapons can be better distinguished by matching with coding management;
variable-focus laser emission: according to different action distances, damage effects and target distances of simulated weapons, the optical system adopts a variable focus mode to support delivery fixed focus according to different weapon types, and the heavy weapons adopt automatic zoom;
self-adaptive laser coding and decoding: the length of each string of codes is set, each pulse is transmitted in a variable-rate transmitting mode, a simple system adopts a high-rate to low-rate cyclic transmitting mode, and a high-grade system adopts a mode of automatically adjusting the rate according to the target distance, so that the laser transmitting power is improved, and the coding rate is reduced;
geometric loss: the receiving device can not be distributed on the whole body, can only be distributed at a proper position, simulates the damage effect to amplify the laser coverage surface, uses a larger light spot to cover a smaller laser sensor, is the laser power loss caused between the larger laser coverage surface and the smaller laser sensor, and has the following quantitative data mode:
log laser coverage area/receiving device area dbm; (1)
the receiving device not only needs to detect the intensity of the laser signal, but also needs to detect and distinguish the modulated pulse code in the coded laser, the area of the detector is inversely proportional to the frequency responsivity of the detector,
F＝1/c (2)
c is the junction capacitance of the detector, the larger the area, the higher the capacitance value, the transmission pulse rate has not been analyzed with the minimum requirement, and the weapon response time is greater than 4 frames per second if tentatively within the 0.5 second level.
Referring to fig. 2, the indirect aiming laser obtains the following parameter inputs, GCS2000 coordinates, through a direction angle sensor, a pitch angle sensor, an inclination angle sensor, a big dipper positioning sensor, a manually set charge amount and a bullet type, etc. fixed on the weapon equipment; parameters such as a pitch angle, an inclination angle, a direction angle, bullet seeds, fuzes, medicine temperature and medicine numbers are obtained through a big data processing platform, damage model basic data and relevant external trajectory parameters, meteorological information, calculated impact point personnel, equipment, material and equipment conditions are displayed through a multidimensional situation visualization real soldier engagement and combat system, and big data analysis is carried out through historical data.
For better visibility, the atmospheric losses within 1 km are negligible.
The inter-aiming laser establishes a weapon simulator terminal, training data such as RID, PID identity number, dead-live state, hit part, hit time and the like of the weapon countermeasure simulator can be collected in real time through a communication base station and main control software in the drilling process, the data are automatically stored, and support can be provided for drilling effect evaluation through situation playback or war damage statistics.
The weapon simulator terminal comprises a mortar, a duromer, a traction artillery, a self-propelled artillery, an inter-aiming landing point display and an artillery reconnaissance simulation explosion point indicator.
The method of the system comprises the following steps:
the method comprises the following steps: referring to fig. 3, the establishment of the weapon power field three-dimensional visualization method: the parameters to be displayed in three dimensions of the fracture force field include not only the spatial position (x, y, z coordinates) of the fracture at a certain time, but also the mass, velocity and velocity direction of each fracture. The parameters are used as input parameters for calculating the power parameters of the fragmentation at the next moment, the power parameters of the fragmentation field can be calculated through the grenade fragmentation power field mathematical model, such as fragmentation mass distribution, fragmentation initial speed, fragmentation speed attenuation and the like, and how to convert the calculation parameters into fragmentation power field display parameters to be mapped into a three-dimensional scene.
(1) Referring to fig. 4, 2D information of the projectile is input: simplifying and processing the grenade model to neglect calculating the unnecessary size information, extracting the necessary size information, making the grenade parameter information into parameter templates, and making each type of grenade into a type of template, wherein the main size information comprises: the method comprises the following steps that the diameter, the thickness and the material of a projectile body, a generatrix equation, the length, the wall thickness and the material of the projectile body, the diameter, the wall thickness and the material of a projectile head, the whole length of the projectile body and the relevant relation among all sizes are obtained, namely, the relevant size can be changed when one size is changed, the fragment power field of the grenade can be distributed and calculated after basic information of the projectile is obtained, a parameter-interface real-time data transmission technology is used, the core of the technology is that information input by a user is sent to a scene in real time in the form of signals, and image items in the scene are redrawn according to a drawing algorithm after the scene receives the change of the information, so that the parameter-interface real-time linkage is realized;
(2) referring to fig. 5, mapping projectile 3D information: mapping 2D plane information in the parameter template to a 3D scene, extracting point, line and plane information in the 2D plane graph, converting the information into a data set, mapping the data set into a target through a function, and placing the target in the 3D scene to complete the conversion of 2D data to 3D data;
step two: establishing a shock wave power field three-dimensional visualization method:
(1) referring to fig. 11, a method for storing pressure information of shock waves at spatial points in a point cloud is suitable for processing experimental data, where each point in the point cloud stores not only position information (x, y, z) but also scalar information and vector information, so as to provide different colors for data in different intervals;
(2) the other method is to store scalar information such as shock wave overpressure, specific impulse and the like at the same distance from the center of the explosion, and the direction is far away from the center of the explosion, so that only the shock wave overpressure value of a shock wave field at a distance L from the center of the explosion is needed to be stored, and the method is suitable for establishing the display of a power field by using an empirical formula:
step three: referring to fig. 6, the projectile mass distribution is calculated and the result is mapped to a 3D scene: and obtaining the total number and the mass distribution of the fragments through a power field mathematical model, endowing quality information to each fragment through Monte Carlo, storing the obtained fragment information into a list, and numbering each fragment.
Referring to fig. 7, the position of the fragment on the planar projectile is determined according to the 2D information of the projectile, the obtained coordinate point information is stored in the list, the position coordinate point of the projectile in the 3D space is obtained through coordinate conversion, and then the point coordinates storing the 3D information are associated with the fragment information list to obtain the distribution list of the fragment in the space. Finally obtaining initial position information and quality information of the grenade fragments;
step four: referring to fig. 8, the initial speed of the fragment is calculated and assigned to the fragment; traversing the fragment list to calculate initial information of each fragment and storing a calculation result into fragment classes, wherein each fragment comprises initial position information, quality information, initial speed information and fragment speed direction information, the direction information of the fragment on a plane is calculated when the fragment direction information is calculated, and then the direction information of the fragment on a projectile body is obtained through rotation transformation of a matrix around a central shaft;
step five: referring to fig. 9, the parameters of the fragmentation static explosion motion are calculated and displayed in real time: on the basis of the acquired fragment information, calculating the spatial position of each fragment after a certain time interval, storing the spatial positions of all fragments at the time t, and displaying the fragment flying process by sequentially loading the fragment positions at all times to display the force field of the static rupture disk;
step six: referring to fig. 10, the parameters of the fragment explosion motion are calculated and displayed in real time: the dynamic explosion motion parameters only need to be superposed with projectile velocity vectors on the basis of static explosion, and other calculations are consistent with the force field of the static explosion piece;
step seven: analyzing target vulnerability: establishing a target model of a typical infantry combat tank and a gunship according to the existing data, and determining the geometric dimension of a target;
(1) constructing equivalent models of the target damage tree and key components: constructing a logical relation between each functional component and the whole machine function for a typical infantry combat tank and a gunship, establishing a damage tree model by adopting a deduction method, performing component weight analysis by adopting a fuzzy analysis method and an analytic hierarchy process to obtain a key component, and constructing an equivalent model for the key component;
(2) study of target damage criteria: according to a power field model obtained by power analysis of a warhead, the types and the action ranges of the damage elements are determined, the damage effect of the damage elements on a target key component is analyzed through simulation and experiments, and damage criterion functions of different damage elements on a target are constructed according to the analysis results;
step eight: and (3) developing a damage effect analysis program:
(1) the damage effect platform architecture: the method for representing the damage efficiency of the bullet on the target effect is determined, and the bullet power, the data interface of the target vulnerability model, the bullet intersection data definition and the interface mode are determined. Defining the calculation flow and the specific calculation method of the damage effect; based on the analysis framework, various projectile bodies can damage a specific target;
(2) analyzing and verifying damage efficiency: determining the damage effect calculation file output mode, carrying out mass analysis of various projectiles on the target damage efficiency, and verifying the design related test of individual working conditions.
The first embodiment is as follows:
mortar confrontation simulator: the product is composed of a PAD, a host, braces, simulated bombs, a battery, a directional antenna and the like, wherein the mortar confrontation simulator is a subsystem of an actual combat confrontation training system, can form an actual combat tactical exercise environment together with other subsystems, can simulate the damage effects of different mortars on various battlefield targets, and can simulate the damage effects of equipment after being hit by effective firepower of various weapons such as direct aiming, indirect aiming, ground explosion and the like, wherein the hitting distance, the flying time of the bombs, the falling bomb spreading and the damage capability are basically consistent with the reality; when a product (personnel) is destroyed, the launching function can be automatically locked; the damage model should support external upgrades.
Example two:
the dur-grenade simulation terminal: the system comprises a host, a PDA (handheld shooting data input end), a direction-finding angle-measuring component, a lithium battery power supply, a smoke generating tank seat, a acousto-optic bomb component and the like, and can simulate the damage effect of different projectiles such as a 100mm duro bomb and a 120mm duro bomb on various battlefield targets, the hitting distance, the projectile flying time, the falling bomb spreading and damage capability and simulate the shooting of an inter-aiming artillery.
Example three:
and (3) towing a artillery simulation terminal: the system comprises a host, a PDA (handheld shooting data input end), a direction-finding angle-measuring component, a lithium battery power supply, a smoke generating tank seat, a acousto-optic bomb component and the like, and can simulate the damage effect of different projectiles such as a 100mm duro bomb and a 120mm duro bomb on various battlefield targets, the hitting distance, the projectile flying time, the falling bomb spreading and damage capability and simulate the shooting of an inter-aiming artillery.
Example four:
inter-aiming drop point display: the coded laser emitted by other weapons can be received, and the simulated injury is generated according to the model and the laser signal; the hitting condition of the terminal can be simulated through sound, flash and smoke forms, and the damage effect of equipment after being hit by effective firepower of various weapons such as direct aiming, indirect aiming and ground explosion can be simulated; when the terminal is destroyed, the reconnaissance function can be automatically locked, the exercise starting and ending time issued by the master control system can be received, and exercise parameter presetting and automatic switching of working modes (a training mode and an exercise mode) are realized; the system can receive a guide control decision instruction issued by a main control system, and realize remote destroying and revival operation; the key setting instruction issued by the master control system can be received, and illegal use of equipment in non-exercise programming is prevented.
Example five:
gun position reconnaissance radar simulation terminal: can be used for detecting the position of the shooting gun position in the process of transmitting, and the damage information and the position information of the terminal can be transmitted to a director center in real time through a radio station.
In summary, according to the method of the direct-aiming and indirect-aiming laser system, the emission wavelength of the direct-aiming laser is 1550nm far infrared laser which is internationally recognized as safe; the laser receiving adopts dual-mode receiving, namely supporting 1550nm and supporting 808nm-980 wavelengths, can support interconnection and intercommunication of third-party equipment, adopts a self-adaptive laser coding and decoding technology, obtains parameter input through a direction angle sensor, a pitch angle sensor, an inclination angle sensor, a Beidou positioning sensor, manually set charging quantity, bullet types and the like fixed on weapon equipment according to a mode of automatically adjusting the speed of a target distance by an inter-aiming laser core principle, comprehensively processes the parameter input to form damage data, and simulates the explosion damage of weapons.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (4)
1. A method of a direct aiming laser system and an indirect aiming laser system is characterized by comprising a direct aiming laser and an indirect aiming laser, wherein the direct aiming laser comprises wavelength and power selection, a laser receiving unit, zooming laser emission and self-adaptive laser coding and decoding, and geometric loss and atmospheric loss are generated in the process from laser emission to laser reception;
the wavelength and power selection: 1550nm far infrared laser, this waveband locates at the transmission window of atmosphere, its absorption scattering is 1/50 of 1.06um laser output only;
the laser receiving unit: the light-sensitive device of the indium gallium arsenic detector is selected, for the wave band, seven receiving surfaces can distinguish laser beams from different directions, and the damage effects of different weapons can be better distinguished by matching with coding management;
the zooming laser emission: according to different action distances, damage effects and target distances of simulated weapons, the optical system adopts a variable focus mode to support delivery fixed focus according to different weapon types, and the heavy weapons adopt automatic zoom;
the self-adaptive laser coding and decoding: the length of each string of codes is set, each pulse is transmitted in a variable-rate transmitting mode, a simple system adopts a high-rate to low-rate cyclic transmitting mode, and a high-grade system adopts a mode of automatically adjusting the rate according to the target distance, so that the laser transmitting power is improved, and the coding rate is reduced;
the geometric loss is as follows: the receiving devices can not be distributed on the whole body, and can only be distributed at proper positions to simulate the damage effect and amplify the laser coverage surface, and larger light spots are used for covering smaller laser sensors, so that the laser power loss caused between the larger laser coverage surface and the smaller laser sensors is reduced;
the receiving device not only needs to detect the intensity of the laser signal, but also needs to detect and distinguish the modulated pulse code in the coded laser, and the area of the detector is inversely proportional to the frequency responsivity of the detector:
F=1/c （1）
c is the junction capacitance of the detector, the larger the area is, the higher the capacitance value is, and the transmission pulse rate has no analysis of the minimum requirement;
the method of the system comprises the following steps:
s1: establishing a weapon power field three-dimensional visualization method:
inputting 2D information of the projectile body: the grenade parameter information is made into parameter templates, and each type of grenade is made into a type of template, wherein the main size information comprises: the method comprises the following steps that the diameter, the thickness and the material of a projectile body, a generatrix equation, the length, the wall thickness and the material of the projectile body, the diameter, the wall thickness and the material of a projectile head, the whole length of the projectile body and the relevant relation among all sizes are obtained, namely, the relevant size can be changed when one size is changed, the fragment power field of the grenade can be distributed and calculated after basic information of the projectile is obtained, a parameter-interface real-time data transmission technology is used, the core of the technology is that information input by a user is sent to a scene in real time in the form of signals, and image items in the scene are redrawn according to a drawing algorithm after the scene receives the change of the information, so that the parameter-interface real-time linkage is realized;
mapping projectile 3D information: mapping 2D plane information in the parameter template to a 3D scene, extracting point, line and plane information in the 2D plane map, converting the information into a data set, mapping the data set to a target through a function, and placing the target in the 3D scene to finish the conversion of 2D data to 3D data;
s2: establishing a shock wave power field three-dimensional visualization method:
the method is suitable for processing experimental data, and is characterized in that pressure information of shock waves at space points is stored in a point cloud form, each point in the point cloud not only stores position information (x, y, z) but also contains scalar quantity information and vector information, so that data in different sections can be conveniently provided with different colors;
the other method is to store the scalar information of the overpressure and specific impulse of the shock wave at the same distance from the center of the explosion, and the direction is far away from the center of the explosion, so that only the overpressure value of the shock wave at the distance L from the center of the explosion of the shock wave field needs to be stored, and the method is suitable for establishing the display of the power field by using an empirical formula:
s3: calculating the projectile mass distribution and mapping the result to a 3D scene: obtaining the total number and the mass distribution of the fragments through a power field mathematical model, endowing quality information to each fragment through a Monte Carlo method, storing the obtained quality information into a list, and numbering each fragment;
solving the position of the fragment on the planar projectile according to 2D information of the projectile, storing the obtained coordinate point information into a list, obtaining a position coordinate point of the projectile in a 3D space through coordinate conversion, associating the point coordinate storing the 3D information into the list to obtain the distribution list of the fragment in the space, and finally obtaining initial position information and quality information of the grenade fragment;
s4: calculating the initial speed of the fragment and endowing the initial speed of the fragment to the fragment; traversing the list to calculate initial information of each fragment and storing a calculation result into fragment classes, wherein each fragment comprises initial position information, quality information, initial speed information and fragment speed direction information, the direction information of the fragment on a plane is calculated when the fragment direction information is calculated, and then the direction information of the fragment on a projectile body is obtained through rotation transformation of a matrix around a central shaft;
s5: calculating and displaying the parameters of the static explosion motion of the broken pieces in real time: on the basis of the acquired fragment information, calculating the spatial position of each fragment after a certain time interval, storing the spatial positions of all fragments at the time t, and displaying the fragment flying process by sequentially loading the fragment positions at all times to display the force field of the static rupture disk;
s6: calculating and displaying the dynamic explosion motion parameters of the fragments in real time: the dynamic explosion motion parameters only need to be superposed with projectile velocity vectors on the basis of static explosion, and other calculations are consistent with the force field of the static explosion piece;
s7: analyzing target vulnerability: establishing a target model of a typical infantry combat tank and a gunship according to the existing data, and determining the geometric dimension of a target;
constructing a target damage tree and a key component effect model: constructing a logical relation between each functional component and the whole machine function for a typical infantry combat tank and a gunship, establishing a damage tree model by adopting a deduction method, performing component weight analysis by adopting a fuzzy analysis method and an analytic hierarchy process, acquiring a key component, and constructing an effect model for the key component;
study of target damage criteria: according to a power field model obtained by power analysis of a warhead, the types and the action ranges of the damage elements are determined, the damage effect of the damage elements on a target key component is analyzed through simulation and experiments, and damage criterion functions of different damage elements on a target are constructed according to the analysis results;
s8: and (3) developing a damage effect analysis program:
the damage effect platform architecture: determining a damage efficiency characterization method of a projectile on a target, determining the projectile power, a data interface of a target vulnerability model, bullet meeting data definition and an interface mode, and determining a calculation process and a specific calculation method of a damage effect; based on the analysis framework, various projectile bodies can damage a specific target;
analyzing and verifying damage efficiency: determining the damage effect calculation file output mode, carrying out mass analysis of various projectiles on the target damage efficiency, and verifying the design related test of individual working conditions.
2. The method of claim 1, wherein the inter-aiming laser is inputted through a direction angle sensor, a pitch angle sensor, an inclination angle sensor, a Beidou positioning sensor, a manually set charge amount and a bullet type fixed on a weapon device, and the parameters include GCS2000 coordinates, a pitch angle, an inclination angle, a direction angle, bullet types, fuzes, a medicine temperature and a medicine number are obtained through a big data processing platform, damage model basic data and related external ballistic parameters, meteorological information, and calculated conditions of landing personnel, equipment, materials and equipment are displayed through a multidimensional situation visualization real soldier engagement and fight system, and are analyzed through historical data big data.
3. The method of claim 1, wherein the indirect laser is used to establish a weapon simulator terminal, and the RID, PID ID number, dead-time status, hit part and hit time training data of the weapon confrontation simulator can be collected in real time through the communication base station and the main control software during the drilling process, and are automatically stored, and support can be provided for drilling effect evaluation through situation playback or war loss statistics.
4. The method of claim 3, wherein the weapon simulator terminal comprises a mortar, duro-gun, towing gun, self-propelled gun, inter-target landing point display, artillery reconnaissance simulation blast point indicator.
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