JP5554206B2 - Thermal power distribution device - Google Patents

Description

  This invention uses, for example, information relating to a target obtained by observation means such as radar and communication, and a thermal power that determines which firearm such as a missile launcher emits a thermal power such as a missile for which target. It relates to a distribution device.

  Conventionally, the determination of the thermal power distribution to which target firearm is assigned is determined by determining the combination so that the sum of the evaluation values of each combination becomes the maximum or minimum in the final target / firearm combination result. Is called. For example, in Japanese Patent Application Laid-Open No. 7-332895, any one of the following is used as the evaluation value of each combination, and the combination is determined by linear programming so that the sum of the evaluation values of each combination is maximized or minimized.

Items for calculating the evaluation value for each combination of target and firearm ● First bullet firing wait time: The time from when a target is assigned to a firearm until the firepower can be fired to the target. In other words, the time it takes for the firepower to be fired to the target to meet within the range of the firearms.
● Shooting probability: The probability that a firearm can shoot down a target.
● Predicted meeting distance: Distance from “firearms that fired fire” to “position where target and firepower meet”.
● Final bullet firing time: “Time until the final time when the target can be shot within range” from the time the target is assigned to the firearm or “Final time when the target can be shot down before reaching the firearm or protection target” The smaller of “time”.
● Predictive meeting time: The time when the target and thermal power meet.
● Target threat level: An indicator of the predicted damage that the target will cause to the protection and firearms.

Japanese Unexamined Patent Publication No. 7-332895

In the conventional technology, the thermal power distribution is performed in consideration of all of the “shooting probability, predicted meeting time, initial launch waiting time, final launch limit time, threat level” in the evaluation value of each target and firearm combination. Therefore, there are problems listed below. Here, the predicted meeting time is defined as “the time from when the firepower is fired to the target until the target and the firepower meet”. The predicted meeting time described in the background art is a time obtained by adding the predicted meeting time and the initial bullet waiting time to the time when the thermal power distribution is executed.
(1). If the evaluation value of each combination does not take into account the probability of shooting down, the firearms with low shooting down probability will be assigned. This causes the target to fail to shoot down and requires a re-attack on the target. As a result, there was a problem that the completion of target shooting was delayed by the re-attack time. In addition, there was a problem that the bullets were wasted.
(2). If the estimated meeting time is not considered in the evaluation value of each combination, there is a problem that firearms are assigned with a long estimated meeting time and the completion of target shooting is delayed.
(3). If the first shot firing waiting time is not considered in the evaluation value of each combination, there is a problem that firearms with long first firing waiting time are assigned and the target shooting down is delayed.
(4). When the final bullet firing time was not taken into account in the evaluation value of each combination, there was a problem that firearms with few chances of re-attacking were assigned and target shooting was not completed.
(5). When the threat level is not considered in the evaluation value of each combination, there is a problem that firearm assignment to a target with a high threat level is not given priority.

In addition, as an evaluation function (equivalent to the objective function of Patent Document 1) for calculating an evaluation value of each item combination, “shooting probability, predicted meeting time, initial bullet waiting time, final bullet firing limit time, threat level” It is also possible to consider all items comprehensively by using a value obtained by weighting and adding each evaluation value. However, in this case, there is a problem that there is no theoretical guideline for determining the weighting coefficient value of each item.
Also, the assigned firearm does not necessarily succeed in shooting down the target, in which case the firearm needs to reattack the target. At that time, in the conventional technique, only the shooting probability and the predicted meeting time at the time of executing the thermal power distribution are considered, and therefore there are the following problems when shooting fails.
(1). Allocation occurs to firearms with a low probability of shooting down when re-attacking. As a result, even when re-attacking, the target fails to be shot down, and further re-attack on the target is required. As a result, there was a problem that the completion of target shooting was delayed by the re-attack time. In addition, there was a problem that the bullets were wasted.
(2). Reassignment will cause firearms with long estimated meeting times. As a result, there was a problem that the completion of the target shooting was delayed.

  The present invention has been made to solve the above-described problems. When performing thermal power allocation, the “shooting probability, predicted meeting time, initial bullet firing waiting time, final bullet firing limit at the time of thermal power allocation execution” Taking into account the `` time '' and the `` shooting probability, estimated meeting time '' at the time of re-attack in anticipation that the assigned firearm will re-attack until completing the target shooting, the effectiveness of each firearm for each target is `` It is calculated as a predicted time required to complete the target shooting after assigning the target to the firearm (hereinafter referred to as a target shooting required prediction time). And, by assigning firearms with high effectiveness to the targets (firearms with a short target shooting estimated time) in order of the targets with the highest threat level, priority handling of high threat targets and improvement of target response rate The objective is to obtain a thermal power distribution device that can reduce target shots and the number of bullets used farther away.

The thermal power distribution apparatus according to the present invention is:
Stores target information including the observation time acquired by radar or communication and the target position, target speed, and target type at the observation time, and is updated and stored each time new target information from radar or communication is input. Storage unit,
The position of firearms acquired by communication, the range of firearms, the speed of firepower fired from firearms, the type of firepower fired from firearms, the upper limit of the target allocatable number of firearms, the target quota of firearms, the remaining bullets of firearms A firearm information storage unit that stores the firearm information including the number, the position of the protection target, and updates and stores each time new firearm information is input,
Based on the target information stored in the target information storage unit and the firearm information stored in the firearm information storage unit, a threat level calculation unit that calculates a threat level that is an index related to the predicted damage to the protection target and the firearm by the target ,
Based on the target information stored in the target information storage unit and the firearm information stored in the firearm information storage unit, if the target is already within range, or will enter the range of firearms in the future, An engagement determination section that determines that there is "combatability", and determines that "no engagement" if it does not enter the range of firearms,
Based on the firearm engagement determination result for the input target, the target information stored in the target information storage unit and the firearm information stored in the firearm information storage unit, the target can meet within the range of the firearm, First bullet firing waiting time calculation unit that calculates the time until firepower can be launched to the target,
Based on the firearm engagement determination result for the input target, the target information stored in the target information storage unit, and the firearm information stored in the firearm information storage unit, until the final time at which the target can be shot down within the range The final bullet firing limit time calculation unit that calculates the final bullet firing limit time, which is the shorter of the time or the time until the final time at which the target can be shot down before reaching the firearm or the protection target,
A target state prediction unit that calculates a target state including a target position, a target speed, and a target type at the input predicted time based on target information stored in the target information storage unit;
Predicted meeting time calculation that calculates the expected meeting time from when firepower is fired to the target until the target and firepower meet, based on the input target state and firearm information stored in the firearm information storage unit Part,
Based on the input target state and firearm information stored in the firearm information storage unit, a shooting probability calculation unit that calculates the probability that the firearm can shoot down the target,
Target information from the target information storage unit and firearm information from the firearm information storage unit, engagement determination result from the engagement determination unit, initial launch waiting time from the initial launch waiting time calculation unit, final bullet launch limit time calculation Final bullet firing limit time from the department, predicted meeting time for the target state at the thermal power allocation execution time from the predicted meeting time calculation section, thermal power shooting probability for the target at the thermal power allocation execution time from the shooting probability calculation section, and predicted meeting time calculation Based on the predicted meeting time for the target state predicted at the target re-attack time from the target, the target shooting probability for the target state from the target re-attack time from the shooting probability calculation unit, after assigning the target to the firearm, Firearm effectiveness calculator that calculates the estimated time required to complete the target shooting down as the effectiveness of each firearm for each target,
Based on the firearm information stored in the firearm information storage unit, the threat level of each target obtained from the threat level calculation unit, and the effectiveness of each firearm for each target obtained from the firearm effectiveness level calculation unit, the threat level It has a thermal power distribution execution unit that assigns firearms with high effectiveness to the target in order of high target,
The firearm effectiveness calculator is
If the determination result of the engagement determination unit is no engagement, the constant value is set as the firearm effectiveness, and the calculation of the effectiveness of the firearm is completed. If there is engagement, the first bullet is fired at the current time. The initial launch firing waiting time from the waiting time calculation unit is added to the prediction time and output to the target state prediction unit. The target state prediction unit predicts the target state at the prediction time, and calculates the shooting probability from the predicted target state. The firearm effectiveness calculation unit adds the initial launch waiting time to the predicted meeting time calculated by the predicted meeting time calculation unit at that time when the shooting probability exceeds a preset threshold. Estimate time as firearm effectiveness, complete calculation of firearm effectiveness,
If the shooting probability is less than the preset threshold value and is within the final bullet firing limit time from the final bullet firing limit time calculation unit, the predicted time calculated previously is added to the current time to obtain the new predicted time Output to the target state prediction unit, the target state prediction unit predicts the target state at this new prediction time, calculates the shooting probability from the predicted target state, adds the previous shooting probability, and the cumulative shooting probability If the cumulative shooting down probability exceeds a preset threshold, the new predicted time obtained by adding the predicted meeting time calculated by the predicted meeting time calculation unit at that time to the previous predicted time is used as the firearm effectiveness, After the calculation of the degree is completed, this process is repeated until the threshold is exceeded or the final bullet firing limit time is exceeded.If the threshold is exceeded, the estimated time at the end of this process is the firearm effectiveness, and the final bullet firing limit time is Beyond , A constant value and firearms effectiveness, do this for each target and each firearms.

  According to the thermal power distribution apparatus according to the present invention, when performing thermal power distribution, the “shooting probability, predicted meeting time, initial bullet firing waiting time, final bullet firing limit time”, and assigned firearms when performing thermal power distribution Considering the “shootdown probability, estimated meeting time” at the time of re-attack in anticipation of re-attacking until the target completes shooting down, the effectiveness of each firearm for each target is set to “prediction required to shoot down the target” Calculated as “time (hereinafter referred to as target shooting required prediction time)”. And, by assigning firearms with high effectiveness to the targets (firearms with a short target shooting estimated time) in order of the targets with the highest threat level, priority handling of high threat targets and improvement of target response rate This has the effect of making it possible to reduce target shots and the number of bullets used farther.

It is a block diagram which shows the structure of the thermal power distribution apparatus in Embodiment 1 of this invention. It is a figure which shows the example of calculation of target shooting required prediction time in a firearm effectiveness calculation part. It is a flowchart which shows the effectiveness calculation procedure of each firearm with respect to a target in a firearm effectiveness calculation part. In the firearm effectiveness calculation part with which the thermal power distribution apparatus of Embodiment 2 of this invention is provided, it is a figure which shows the example of calculation of target shooting required prediction time. It is a flowchart which shows the effectiveness calculation procedure of each firearm with respect to a target in the firearm effectiveness calculation part of the thermal power distribution apparatus of Embodiment 2 of this invention. In the firearm effectiveness calculation part of the thermal power distribution apparatus of Embodiment 3 of this invention, it is a flowchart which shows the effectiveness calculation procedure of each firearm when the target shooting required prediction time exceeds the last shooting limit time.

Embodiment 1 FIG.
1 is a block diagram showing a configuration of a thermal power distribution apparatus according to Embodiment 1 of the present invention. Each component of the thermal power distribution apparatus of FIG. 1 will be described below.
The target information storage unit 1 stores target information including an observation time acquired by radar or communication, a target position at the observation time, a target speed, and a target type.
The firearm information storage unit 2 includes the position of the firearm acquired through communication, the range of the firearm, the speed of the firepower fired from the firearm, the type of firepower fired from the firearm, the upper limit of the target allocatable number of firearms, the firearm target Stores firearm information including the allocated number, the remaining number of firearms, and the position of the protection target.
The threat level calculation unit 3 is an index relating to the predicted damage that the target has on the protection target and the firearm based on the target information stored in the target information storage unit 1 and the firearm information stored in the firearm information storage unit 2. Calculate the threat level.

Based on the target information stored in the target information storage unit 1 and the firearm information stored in the firearm information storage unit 2, the engagement determination unit 4 will enter the range of firearms in the future (already If it does not enter the range of firearms, it is determined that there is no engagement.
The initial bullet waiting time calculation unit 5 is stored in the firearm engagement determination result for the target input from the engagement determination unit 4, the target information stored in the target information storage unit 1, and the firearm information storage unit 2. Based on the firearm information, the time until the firepower can fire from the firearm to the target (time until the target can meet within the firearm range) is calculated.
The final bullet firing limit time calculation unit 6 is stored in the firearm engagement determination result for the target input from the engagement determination unit 4, the target information stored in the target information storage unit 1, and the firearm information storage unit 2. Based on the firearm information, the final time to fire the final bullet (the time until the final time at which the target can be shot within the range) or the time until the final time at which the target can be shot down before reaching the firearm or protection target. ”Whichever is smaller).

The target state prediction unit 7 sets the target position, target speed, and target type as the target state at the input prediction time based on the input prediction time and the target information stored in the target information storage unit 1. calculate.
Based on the target state (position, speed, type) input from the target state prediction unit 7 and the firearm information stored in the firearm information storage unit 2, the predicted meeting time calculation unit 8 emits thermal power to the target. The time until the target and firepower meet is calculated.
The shooting down probability calculation unit 9 calculates the probability that the firearm can shoot down the target based on the target state (position, speed, type) input from the target state prediction unit 7 and the firearm information stored in the firearm information storage unit 2. calculate.

Based on the target information stored in the target information storage unit 1, the firearm information stored in the firearm information storage unit 2, and the following items, the firearm effectiveness calculation unit 10 determines the validity of each firearm for each target. The degree is calculated as “the estimated time required to shoot down the target after assigning the target to the firearm”.
● Engagement result.
● First bullet launch waiting time.
● Final bullet launch time limit.
● Predicted meeting time and shooting probability for the target state at the current time (time when thermal distribution is executed).
● Predicted meeting time and shooting probability for “target state at reattack time” obtained by executing “target state prediction unit” by inputting “time when firearm reattacks target” as prediction time.
● Cumulative shooting probability when a firearm performs a re-attack.
The thermal power distribution execution unit 11 includes the firearm information stored in the firearm information storage unit 2, the threat level of each target obtained from the threat level calculation unit 3, and each firearm for each target obtained from the firearm effectiveness calculation unit 10. Based on the effectiveness of the firearms, firearms with high effectiveness are assigned to the targets in order of the highest threat.

Next, a series of operations of the thermal power distribution apparatus having the configuration of FIG. 1 will be described.
The target information storage unit 1 stores target information including a target observation time, a target position, a target speed, and a target type, which are periodically input from a radar, a sensor, communication, or the like. The target information stored in the target information storage unit 1 is updated every time target information is input.
The firearm information storage unit 2 is capable of assigning firearm positions, firearm range, firepower speed fired from firearms, fire bullet types fired from firearms, and firearm targets assigned from communication or direct manual input. The firearm information including the upper limit of the number, the target allocation number of firearms, the remaining number of firearms, and the position of the protection target is stored. The firearm information stored in the firearm information storage unit 2 is updated every time firearm information is input.
The threat level calculation unit 3 includes the target position stored in the target information storage unit 1, the target speed, the target type and the firearm position stored in the firearm information storage unit 2, and the thermal power emitted from the firearm. Based on the type of ammunition and the position of the protection target, the threat level, which is an index related to the predicted damage of each target on the protection target and the firearm, is calculated.

  The engagement determination unit 4 is based on the target position, the target speed, the target type and the firearm position stored in the firearm information storage unit 2, and the range of the firearm stored in the target information storage unit 1. , If the target will enter the range of firearms in the future (including when it is already in range), it will be determined as “combatability”, and if it does not enter the range of firearms, “no engagement” judge. The determination result of the engagement property is output to the firearm effectiveness calculation unit 10, the initial bullet firing waiting time calculation unit 5, and the final bullet firing limit time calculation unit 6. At this time, the target prediction model uses a model corresponding to the type of target stored in the target information storage unit 1, but if the type of target is not known, the target performs a constant velocity linear motion. Calculate as a thing.

  The first bullet launch waiting time calculation unit 5 is only for a target whose “input is engaged” is input from the engagement determination unit 4, the target position, the target speed, the target stored in the target information storage unit 1. Based on the type of firearm and the firearm position stored in the firearm information storage unit 2, the range of the firearm, the speed of firepower fired from the firearm, and the type of firepower fired from the firearm, The time until the meeting is possible in the area is calculated and output to the firearm effectiveness calculation unit 10 as the initial bullet waiting time. At this time, the target prediction model uses a model corresponding to the type of target stored in the target information storage unit 1, but if the type of target is not known, the target performs a constant velocity linear motion. Calculate as a thing.

  The final bullet firing limit time calculation unit 6 calculates the final bullet firing limit time only for a target whose input from the engagement determination unit 4 is “with engagement”. First, the position of the target stored in the target information storage unit 1, the target speed, the type of target and the position of the firearm stored in the firearm information storage unit 2, the range of the firearm, and the thermal power emitted from the firearm Based on the speed and the type of firepower fired from the firearm, the “time until the final time at which the target can be shot within the range” is calculated. Next, the position of the target stored in the target information storage unit 1, the target speed, the type of target and the position of the firearm stored in the firearm information storage unit 2, the range of the firearm, the thermal power emitted from the firearm Based on the speed of fire and the type of firepower fired from the firearm, the "time until the final time at which the target can be shot down before the target reaches the firearm or the protection target" is calculated. Then, the smaller time is output to the firearm effectiveness calculation unit 10 as the final bullet firing limit time. At this time, the target prediction model uses a model corresponding to the type of target stored in the target information storage unit 1, but if the type of target is not known, the target performs a constant velocity linear motion. Calculate as a thing.

The firearm effectiveness calculation unit 10 calculates the effectiveness of each firearm with respect to the target as “the predicted time required to shoot down the target after assigning the target to the firearm (hereinafter referred to as target shooting required prediction time)”, Output to the thermal power distribution execution unit 11. Target shot down the required prediction time is based on the concept of "time required for the shot down complete failure increases rechallenge time duration to attack", the cumulative shoot probability CKP _n in the case of attack "n times as shown in FIG. 2 previously Until the set threshold value T _kp is exceeded, the estimated meeting time at the time of re-attack is added to the sum of the initial bullet waiting time and the estimated meeting time at the time of the first attack ”. Below, the concrete calculation procedure of the effectiveness of each firearm for the target is shown.

FIG. 3 is a flowchart showing a specific procedure for calculating the effectiveness of each firearm with respect to the target.
Step1: When the engagement determination result input from the engagement determination section 4 is “no engagement”, the firearm effectiveness is calculated using the “constant value indicating no engagement” as the effectiveness of the firearm for the target. End the process. In the case of “there is engagement”, the initial bullet firing waiting time output from the initial bullet firing waiting time calculation unit 5 is substituted as an initial value of the target shooting required prediction time, and the process proceeds to Step 2.

  Step 2: The time obtained by adding the target shooting required prediction time to the current time is input as the prediction time, and the processing of the target state prediction unit 7 is executed. The target state prediction unit 7 calculates the target state (position, speed, type) at the predicted time based on the target observation time, target position, target speed, and target type stored in the target information storage unit 1. And output to the predicted meeting time calculation unit 8 and the shooting probability calculation unit 9. At this time, the target prediction model uses a model corresponding to the type of target stored in the target information storage unit 1, but if the type of target is not known, the target performs a constant velocity linear motion. Calculate as a thing.

Step3: The following processing is executed.
Step 3A: The predicted meeting time calculation unit 8 calculates the target state (position, speed, type) input from the target state prediction unit 7, the position of the firearm stored in the firearm information storage section 2, and the thermal power emitted from the firearm. The predicted meeting time is calculated based on the speed and the type of firepower fired from the firearm, and is output to the firearm effectiveness calculator 10. At this time, the target prediction model uses a model corresponding to the type of target stored in the target information storage unit 1, but if the type of target is not known, the target performs a constant velocity linear motion. Calculate as a thing.
Step 3B: The shooting probability calculation unit 9 calculates the target state (position, speed, type) input from the target state prediction unit 7, the position of the firearm stored in the firearm information storage unit 2, and the speed of the firepower fired from the firearm. The target shooting probability is calculated based on the bullet type of the fired power fired from the firearm, and is output to the firearm effectiveness calculation unit 10. At this time, the target prediction model uses a model corresponding to the type of target stored in the target information storage unit 1, but if the type of target is not known, the target performs a constant velocity linear motion. Calculate as a thing.

  Step 4: The predicted meeting time input from the predicted meeting time calculation unit 8 is added to the target shooting target predicted time. Further, based on the shooting probability input from the shooting probability calculation unit 9 and the shooting probability in the previous attack, the cumulative shooting probability is calculated by the following equation 1.

Step5: When the target shooting target estimated time has passed the final shooting limit time, "the constant value indicating that shooting may not be completed even if a target is assigned to a firearm" is the firearm effectiveness for the target, End the firearm effectiveness calculation process. If the target shooting required time has not exceeded the final shooting limit time, proceed to Steg6.
Step 6: If the cumulative shooting probability exceeds a preset threshold value T _kp , it is determined that the target shooting is completed. Therefore, the target shooting required prediction time is set as the firearm effectiveness with respect to the target, and the firearm effectiveness calculation process is terminated. If the cumulative shooting probability does not exceed the threshold value T _kp , the process returns to Step 2.

Here, when the effectiveness of all firearms for the target calculated by the above steps 1 to 6 is “a constant value indicating that there is a possibility that target shooting may not be completed even if assigned to a firearm” (in any firearm If the cumulative shooting probability does not exceed the threshold T _kp even if the attack is repeated until the final shooting limit time is exceeded, the cumulative shooting probability is used for the effectiveness of the firearm.
The thermal power distribution execution unit 11 includes the upper limit of the target allocatable number of firearms stored in the firearm information storage unit 2, the allocated number, the remaining number of bullets, and the threat level of each target input from the threat level calculation unit 3. Based on the effectiveness of each firearm for each target input from the firearm effectiveness calculation unit 10, firearms with high effectiveness are assigned to the targets in the order of the targets having the highest threat level.

  As described above, when performing the thermal power allocation, the “shooting probability, predicted meeting time, initial bullet waiting time, final bullet launch time limit” 11 at the time of thermal power allocation execution, and the assigned firearm Considering the “shootdown probability, estimated meeting time” at the time of re-attack in anticipation of re-attacking until completion, assign the target to the firearm for each target, then complete the target shooting Is calculated as a predicted time (hereinafter referred to as a target shooting required prediction time). And, by assigning firearms with high effectiveness to the targets (firearms with a short target shooting estimated time) in order of the targets with the highest threat level, priority handling of high threat targets and improvement of target response rate This has the effect of making it possible to reduce target shots and the number of bullets used farther.

Embodiment 2. FIG.
The second embodiment of the present invention is the same as the first embodiment except that the operation of the firearm effectiveness calculation unit 10 is different. Therefore, only the operation of the firearm effectiveness calculation unit 10 will be described below.
The firearm effectiveness calculation unit 10 calculates the effectiveness of each firearm for each target as “predicted time required to shoot down the target after assigning the target to the firearm (hereinafter referred to as target shooting required prediction time)”. At this time, instead of “a battle policy that reattacks after confirming the target attack result”, a “combat policy that attacks the target multiple times in succession at the firepower preparation interval in anticipation of failure” is assumed. . As shown in FIG. 4, the target shooting required prediction time based on this assumption is calculated as follows: “The initial shooting standby time until the cumulative shooting probability CKP _n for n consecutive shots exceeds the threshold T _kp And finally add the predicted meeting time for the nth attack. " FIG. 5 is a flowchart showing the procedure for calculating the effectiveness of each firearm relative to the target. The specific calculation procedure is the same as that of the first embodiment except that the operation of Step 6 of the procedure shown in the first embodiment is different. Therefore, only the operation of Step 6 of the procedure will be described below.

Step 6: When the cumulative shooting probability exceeds a preset threshold value T _kp , the target shooting required prediction time is set as the firearm effectiveness for the target, and the firearm effectiveness calculation process is terminated. When the cumulative shooting probability does not exceed the threshold value T _kp , the predicted meeting time added in Step 4 is subtracted from the target shooting required prediction time, and the fire power launch preparation interval is added. Then, return to Step2.

  By using the above, the target shooting target estimated time is calculated when it is a `` combat policy that attacks the target multiple times in succession at the firepower preparation interval in anticipation of failure ''. Although the number of ammunition increases, it has the effect of further improving the rate of dealing with the target and enabling target shooting at a farther distance.

Embodiment 3 FIG.
The third embodiment of the present invention is the same as the first embodiment or the second embodiment except that the operation of the firearm effectiveness calculation unit 10 is different. Therefore, only the operation of the firearm effectiveness calculation unit 10 will be described below.
When calculating the firearm effectiveness calculation unit 10, as the effectiveness of each firearm with respect to the target, “predicted time required to shoot down the target after assigning the target to the firearm (hereinafter referred to as target target shooting required prediction time)” If the result is that there is a possibility that the target's shooting may not be completed even if the attack to the target is repeated until the final shooting time limit with that firearm, the target assignment is switched to another firearm to the target. It is assumed that the re-attack will continue. Then, the target shooting required prediction time is continuously calculated in other firearms. In other words, the value obtained by adding the “target fire target estimation time after switching” to the “target fire target prediction time before switching” is the firearm effectiveness (the effectiveness of the firearm that generates the target allocation first. )

The specific calculation procedure is the same as that of the first embodiment except that the operation of Step 5 of the procedure shown in the first or second embodiment is different. Therefore, only the operation of Step 5 of the procedure will be described below.
Step5: Proceed to Step6 if the target shooting target estimated time does not exceed the final shooting limit time. When the target shooting required prediction time has passed the final shooting limit time, the following processing is performed. FIG. 6 is a flowchart showing the following processing.
Step5-1: Extract firearms that satisfy both of the following two conditions as firearms that can switch target assignments.
(1). Firearms that have a result of engagement determination of “There is engagement”.
(2) The final shooting limit time is longer than the target shooting required time.
Step5-2: If there is no firearm that can switch the target assignment, the firearm effectiveness for the target will be the constant value indicating that there is a possibility that shooting will not be completed even if the target is assigned to the firearm. The validity level calculation process is terminated. If there is a firearm that can switch the target assignment, go to Step 5-3.
Step 5-3: For the switchable firearms extracted in Step 5-1, continue to calculate the target shooting target prediction time. Specifically, based on the setting that the target shooting target prediction time after the firearm before switching has elapsed, the target shooting target prediction time calculation process described in the first or second embodiment is performed. To do.
Step5-4: Extract the firearms that can be shot down from the firearms after switching.
Step5-5: If there are no firearms that can be shot down after switching, “the constant value indicating that shooting may not be completed even if a target is assigned to the firearm” is the firearm effectiveness for the target. The firearm effectiveness calculation process is terminated. If there is a firearm that can be shot down after switching, the firearm effectiveness for the target is determined with the shortest target shot required prediction time being among those firearms, and the firearm effectiveness calculation process is terminated.

  By doing as described above, more accurate target shooting required prediction time is calculated, so that it is possible to further improve the response rate of the target, to further target shooting down, and to reduce the number of bullets used .

Embodiment 4 FIG.
Embodiment 4 of the present invention is different from Embodiment 1 except that the target threat level is input from the threat level calculation unit 3 to the firearm effectiveness level calculation unit 10 and the operation of the firearm effectiveness level calculation unit 10 is different. The same as in the second embodiment. Therefore, only the operation of the firearm effectiveness calculation unit 10 will be described below.
The firearm effectiveness calculation unit 10 determines whether or not the target shooting is completed when calculating the effectiveness of each firearm with respect to the target as “the estimated time required to shoot the target after assigning the target to the firearm” Based on the input target threat level, the threshold of the cumulative shooting probability used for predicting is set so that the higher the target, the higher the threshold value.

  By doing the above, since the target shooting target prediction time is calculated according to the “combat policy in which a higher threat target can be dealt with more reliably”, a firearm that can reliably deal with a higher threat target can be obtained. There is an effect that comes to be selected.

  The present invention is applicable to an interceptor missile system which is one of defense weapons.

  DESCRIPTION OF SYMBOLS 1; Target information storage part, 2; Firearm information storage part, 3; Threat degree calculation part, 4; Engagement determination part, 5; First bullet firing waiting time calculation part, 6; Final bullet firing limit time calculation part, 7; Target state prediction unit, 8; predicted meeting time calculation unit, 9; shooting probability calculation unit, 10; firearm effectiveness calculation unit, 11; thermal power distribution execution unit.

Claims (4)

Target information storage that stores observation information acquired by radar or communication and target information including target position, target speed, and target type at the observation time, and is updated and stored each time new target information is input from the radar or communication. Part,
The position of firearms acquired by communication, the range of firearms, the speed of firepower fired from firearms, the type of firepower fired from firearms, the upper limit of the target allocatable number of firearms, the target quota of firearms, the remaining bullets of firearms A firearm information storage unit that stores the firearm information including the number, the position of the protection target, and updates and stores each time new firearm information is input,
Based on the target information stored in the target information storage unit and the firearm information stored in the firearm information storage unit, a threat level calculation unit that calculates a threat level that is an index related to the predicted damage to the protection target and the firearm by the target ,
Based on the target information stored in the target information storage unit and the firearm information stored in the firearm information storage unit, if the target is already in the range of fire, or will enter the range of firearms in the future, If it does not come into the range of firearms, it will determine that there is no engagement, the engagement determination unit that determines that there is no engagement
Based on the firearm engagement determination result for the input target, the target information stored in the target information storage unit and the firearm information stored in the firearm information storage unit, the target can meet within the range of the firearm, First bullet firing waiting time calculation unit that calculates the time until firepower can be launched to the target,
Based on the firearm engagement determination result for the input target, the target information stored in the target information storage unit, and the firearm information stored in the firearm information storage unit, until the final time at which the target can be shot down within the range The final bullet firing limit time calculation unit that calculates the final bullet firing limit time, which is the shorter of the time or the time until the final time at which the target can be shot down before reaching the firearm or protection target,
Target state prediction unit that calculates a target state including the target position, target speed, and target type at the input predicted time based on the target information stored in the target information storage unit. Based on the firearm information stored in the information storage unit, a predicted meeting time calculation unit that calculates a predicted meeting time from when firepower is fired to the target until the target and firepower meet,
Based on the input target state and firearm information stored in the firearm information storage unit, a shooting probability calculation unit that calculates the probability that the firearm can shoot down the target,
Target information from the target information storage unit and firearm information from the firearm information storage unit, engagement determination result from the engagement determination unit, initial launch waiting time from the initial launch waiting time calculation unit, final bullet launch limit time calculation The final bullet firing limit time from the unit, the predicted meeting time for the target state at the thermal power allocation execution time from the predicted meeting time calculation unit, the thermal power shooting probability predicted meeting time calculation unit for the target at the thermal power distribution execution time from the shooting probability calculation unit Based on the estimated meeting time for the target state predicted at the target re-attack time from the target, and the shooting probability for the target state predicted at the target re-attack time from the shooting probability calculation unit, the target is assigned to the firearm, and then the target Firearm effectiveness calculation unit that calculates the estimated time required to shoot down as the effectiveness of each firearm for each target,
Based on the firearm information stored in the firearm information storage unit, the threat level of each target obtained from the threat level calculation unit, and the effectiveness of each firearm for each target obtained from the firearm effectiveness level calculation unit, the threat level A thermal power distribution execution unit for assigning firearms having high effectiveness to the target in order of high target;
The firearm effectiveness calculator is
If the determination result of the engagement determination unit is no engagement, the constant value is set as the firearm effectiveness, and the calculation of the effectiveness of the firearm is completed. Adding the initial bullet waiting time from the time calculation unit and outputting the predicted time to the target state prediction unit, the target state prediction unit predicts the target state at this prediction time, and the shooting probability calculation unit from the predicted target state And the firearm effectiveness calculation unit, when this shooting probability exceeds a preset threshold, predicts by adding the initial bullet waiting time to the predicted meeting time calculated by the predicted meeting time calculation unit at that time Time is firearm effectiveness, firearm effectiveness calculation is completed,
If the shooting probability is less than the preset threshold value and is within the final bullet firing limit time from the final bullet firing limit time calculation unit, the predicted time calculated previously is added to the current time to obtain the new predicted time Output to the target state prediction unit, the target state prediction unit predicts the target state at this new prediction time, calculates the shooting probability from the predicted target state, adds the previous shooting probability, and the cumulative shooting probability If the cumulative shooting down probability exceeds a preset threshold, the new predicted time obtained by adding the predicted meeting time calculated by the predicted meeting time calculation unit at that time to the previous predicted time is used as the firearm effectiveness, After the calculation of the degree is completed, this process is repeated until the threshold is exceeded or the final bullet firing limit time is exceeded.If the threshold is exceeded, the estimated time at the end of this process is the firearm effectiveness, and the final bullet firing limit time is Beyond , A constant value and firearms effectiveness, thermal distribution unit and performs the process for each target and each firearms. The target attack method in firearms is a method of firing multiple times at firepower preparation intervals,
The predicted time of the nth attack is the product of n-1 and the firepower preparation interval time and the initial bullet launch wait time plus the current time, and the target state prediction unit predicts the target state at this predicted time, The predicted meeting time calculation unit calculates the predicted meeting time from the predicted target state, calculates the cumulative shooting probability of n times from the shooting probability calculated by the shooting probability calculation unit, and sets the cumulative shooting probability as a preset threshold value. If exceeded, the firearm effectiveness calculation unit will complete the calculation of firearm effectiveness, using the estimated meeting time at the time as the product of n-1 and the firepower preparation interval time and the initial launch wait time as the firearm effectiveness. And
If the cumulative shooting probability is less than a preset threshold value and is within the final bullet firing time limit from the final bullet firing limit time calculation unit, the predicted time of the (n + 1) th attack is set to n and a fire launch preparation interval time The target state prediction unit predicts the target state at the predicted time, and the predicted meeting time calculation unit meets the target and thermal power from the predicted target state. The predicted time is calculated, and the process in which the shooting probability calculation unit calculates the shooting probability is executed until the cumulative shooting probability exceeds a preset threshold value or exceeds the final bullet firing limit time. The firearm effectiveness is obtained by adding the product of n, the firepower launch preparation interval time, and the initial launch waiting time to the estimated time of fire, and the calculation of firearm effectiveness is completed. Thermal power distribution device   The target attack on a firearm is completed even if the firearm effectiveness calculator calculates the effectiveness of each firearm for each target and repeats the target attack until the final firing time limit with that firearm. If the result indicates that there is a possibility of failure, the target assignment is switched to another firearm and the re-attack on the target is continued, and the firearm effectiveness calculator calculates the firearm effectiveness with this switched firearm. The thermal power distribution apparatus according to claim 1 or 2, wherein the thermal power distribution apparatus is configured to calculate.   The thermal power distribution device according to claim 1 or 2, wherein the firearm effectiveness calculation unit is configured to input a threat level of each target from the threat level calculation unit and to set a threshold value of a cumulative shooting probability according to the target threat level. .

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