The present invention relates to a firing control system and a firing control method, in which a target is intercepted by a flying object.
There is a case that after a flying object is launched to intercept a target in a distant place, detailed data of the target is acquired. However, the already launched flying object continues to fly according to a condition set before the launching. Therefore, the condition that the flying object meets the target has been set based on old data before the launching.
Especially, when a plurality of targets should be intercepted by a plurality of flying objects, the more efficient interception can be expected if the firepower assignment determining which of the flying objects intercepts one of the targets can be optimized based on the latest information obtained by observing the targets. It is expected that the larger effect is accomplished through the optimization of the firepower assignment as the range of the flying object becomes longer, in other words, when a time from the launching of the flying object to the meeting with the target becomes longer.
In conjunction with the above, Patent Literature 1 (JP_2003-139500A) discloses a guided flying object and an aircraft. This guided flying object has a seeker which can identify a plurality of targets individually, and a communication device which transmits data of the number of targets identified by the seeker to a mother machine. Here, the communication device may transmit the data of the targets to another guided flying object. The guided flying object may further have a seeker control unit. The seeker control unit controls the seeker to pursue a target different from the target pursued by another guided flying object based on data of target received from the other guided flying object.
A firing control system and a firing control method are provided in which the assignment of a plurality of flying objects to a plurality of targets can be optimized after launching the flying objects to intercept the targets. Other problems and new features will become clear from this Specification and the attached drawings.
A firing control system in one embodiment includes a launcher apparatus, a plurality of flying objects, a sensor device and a first processing unit. Here, the plurality of flying objects are launched for the plurality of targets from the launcher apparatus. The sensor device observes the plurality of targets.
The first processing unit calculates the optimal assignment of the plurality of flying objects to the plurality of targets based on the result of the observation. Each of the plurality of flying objects includes a first communication device and a second processing unit. Here, the first communication device receives a first data signal which contains the optimal assignment calculated by the first processing unit. The second processing unit sets one of the plurality of targets which is specified through the optimal assignment, as an interception object.
The firing control method in one embodiment includes a launcher apparatus launching a plurality of flying objects for a plurality of targets; a sensor device observing the plurality of targets; a first processing unit calculating an optimal assignment of the plurality of flying objects to the plurality of targets based on the result of the observation; each the plurality of flying objects receiving first data signal which contains data showing the optimal assignment; each of the plurality of flying objects setting an interception object to one of the plurality of targets which is specified by the optimal assignment.
According to the one embodiment, the assignment of firepower of flying objects to the targets can be optimized after the flying objects are launched for the targets.
A firing control system and a firing control method according to embodiments of the present invention will be described below with reference to the attached drawings.
Referring to
The firing control system 1 shown in
Here, it is not always necessary for the plurality of flying objects 3 to have identical firepower. That is, the plurality of flying objects 3 of different models may be used. Also, even if the plurality of flying objects are of the same model, the firepower of the flying objects 3 may differ, depending on an individual difference, a manufacturing lot and so on. In this case, a dynamic performance of a rocket motor, a destructive force of a warhead and so on of the flying object 3 are numerized to values, which are weighted appropriately and then totalized to a total value of the firepower of flying object 3. Thus, the flying object 3 can be compared with another flying object with respect to the firepower.
In the same way, the threat of the plurality of targets 4 may not be always identical. That is, aircrafts of a plurality of different models may be mixed in the plurality of targets 4. Also, even if the aircrafts are of the same model, there may be an individual difference, a difference of the ability of a pilot and a difference of role in the formation in each of the plurality of targets 4. Here, an RCS (Radar Cross Section), a turning acceleration, a position in formation, a speed vector and so on of each target 4 are numerized to values, which are weighted appropriately and totalized to a value. Thus, the target 4 can be compared with another target or the flying object with respect to the threat.
In such a situation, to maximize an interception efficiency of the plurality of targets 4 by the plurality of flying objects 3, it is considered to optimize the firepower assignment of the plurality of flying objects 3 to the plurality of targets 4. The maximization of interception efficiency due to the firepower assignment can be realized by an algorithm by which the flying object 3 having a stronger firepower of the plurality of flying objects 3 is assigned to the target 4 having a higher threat degree of the plurality of targets 4. Note that this algorithm is only an example, and other algorithm is not excluded.
The firing control system 1 in the present embodiment can optimize the firepower assignment of the plurality of flying objects 3 to the plurality of targets 4 after the plurality of flying objects 3 are launched for the plurality of targets 4 from the launcher apparatus 2.
Referring to
The configuration of launcher apparatus 2 will be described. The launcher apparatus 2 has a bus 28, an input/output interface 26, a sensor device 21, a display device 20, a communication device 22, an antenna 221, a processing unit 23, a storage device 24, an external storage device 25 and a launcher 27.
The connection relation of components of the launcher apparatus 2 will be described. The input/output interface 26, the processing unit 23, the storage device 24, the external storage device 25 and the launcher 27 are connected through bus 28 to be communicable each other. The sensor device 21, the display device 20 and the communication device 22 are connected with the input/output interface 26. Note that part or whole of the sensor device 21, the display device 20 and the communication device 22 may be directly connected with the bus 28 without passing through the input/output interface 26. The antenna 221 is connected with the communication device 22. The external storage device 25 is connected with recording medium 251 detachably. The launcher 27 is connected with the flying object 3 detachably.
The operation of components of the launcher apparatus 2 will be described. The bus 28 mediates communication between the components connected with the bus 28. The input/output interface 26 mediates communication between the components connected with the input/output interface 26. The storage device 24 stores a predetermined program, predetermined data and so on. The program and the data may be provided from the recording medium 251 through the external storage device 25 and may be provided from outside through the communication device 22 or the sensor device 21. The processing unit 23 reads the program from the storage device 24 to execute it, inputs and outputs the data stored in the storage device 24 and controls the sensor device 21, the display device 20, the communication device 22, the launcher 27 and so on. The sensor device 21 observes a peripheral situation of the launcher apparatus 2, especially, the targets 4 and the launched flying objects 3 and stores the observation result in the storage device 24 or notifies to the processing unit 23. The communication device 22 carries out the radio communication with the flying objects 3 and with another communication object through the antenna 221. The display device 20 visibly displays the result calculated by the processing unit 23 and the data stored in the storage device 24 and so on. Note that the display device 20 may output an acoustic signal and so on in addition to an optical signal. The launcher 27 launches the flying objects 3 under the control of the processing unit 23.
Referring to
Components of the flying object 3 will be described. The flying object 3 includes a bus 38, an input/output interface 36, a sensor device 31, a communication device 32, an antenna 321, a processing unit 33, a storage device 34, an external storage device 35, a warhead 37 and a rocket motor 39.
The connection relation of components of the flying object 3 will be described. The input/output interface 36, the processing unit 33, the storage device 34, the external storage device 35, the warhead 37 and the rocket motor 39 are connected through the bus 38 communicably each other. The sensor device 31 and the communication device 32 are connected with the input/output interface 36. Note that part or whole of the sensor device 31 and the communication device 32 may be directly connected with the bus 38 without passing through the input/output interface 36. The antenna 321 is connected with the communication device 32. The external storage device 35 is connected with the recording medium 351 detachably.
The operation of components of the flying object 3 will be described. The bus 38 mediates communication between the components connected with the bus 38. The input/output interface 36 mediates communication among the components connected with the input/output interface 36. The storage device 34 stores a predetermined program, predetermined data and so on. This program and the data may be provided from a recording medium 351 through the external storage device 35 and may be provided from outside through the communication device 32 or the sensor device 31. The processing unit 33 reads the program from the storage device 34 to execute it, inputs and outputs the data stored in storage device 34 and controls the sensor device 31, the communication device 32, the warhead 37, the rocket motor 39 and so on. The sensor device 31 observes the peripheral situation of the flying object 3, especially, the targets 4, stores the observation result in the storage device 34 or notifies to the processing unit 33. The communication device 32 carries out radio communication with the launcher apparatus 2, the other communication objects and so on through the antenna 321. The warhead 37 and the rocket motor 39 operate appropriately under the control of the processing unit 33.
Referring to
The flow chart of
When the first step S1 is executed, the launcher apparatus 2 detects the targets 4 as an object to be intercepted. At this time, the launcher apparatus 2 may detect the targets 4 observed by the sensor device 21 and may receive data of the targets 4 notified externally through the communication device 22.
Referring to
The control advances to a second step S2 after the first step S1.
At the second step S2, the launcher apparatus 2 launches the flying objects 3 for the targets 4. At this time, it is desirable that the processing unit 23 executes the program of the storage device 24 to appropriately control the launcher 27 to launch the flying objects 3 of the same number as that of the targets 4 for interception of the four targets 4. Also, it is desirable that the processing unit 23 transmits the target data showing the targets 4 to the flying objects 3 through the launcher 27 from the storage device 24 and the flying objects 3 stores the target data in the storage device 34. After the second step S2, a third step S3 is executed.
At the third step S3, the flying object 3 observes the peripheral situation of the flying object 3, especially, the targets 4 while flying toward the target 4. At this time, it is desirable that the flying object 3 observes a position and speed of each of the targets 4. It is also desirable that the flying object 3 observes its own position and speed in addition to the data of the targets 4. The launcher apparatus 2, too, observes the peripheral situation of the launcher apparatus 2 from the viewpoint of approaching the targets 4. It is desirable that the launcher apparatus 2 observes the flying objects 3 and the targets 4, especially. However, only one of the launcher apparatus 2 and the flying object 3 may observe the targets 4 or both may observe.
Referring to
Note that a case is shown in
At this time, the data to be acquired as the observation result of the targets 4 contains data used to estimate a threat degree of each of the targets 4 in addition to the position and speed of the target 4 which are necessary for the flying object 3 to reach the target 4. It is possible to calculate the threat degree of the target 4 by using an RCS, a turning acceleration, a position in formation, a speed vector and so on, as mentioned above.
A fourth step S4 is executed after the third step S3.
At the fourth step S4, the firing control system 1 calculates the optimal assignment of firepower of the flying objects 3. As mentioned above, the purpose of the optimal assignment of the firepower is to maximize the interception efficiency of the plurality of targets 4 having different threat degrees by the plurality of flying objects 3 with different firepower. Therefore, the firing control system 1 calculates the threat degrees of each of the plurality of targets 4 in a comparable form, and on the other hand, calculates the firepower of each of the plurality of flying objects 3 in a comparable form.
The processing unit 23 of the launcher apparatus 2 may carry out the optimal assignment of firepower, or the processing unit 33 of one of the flying objects 3 may carry out it. Or, the processing unit 33 of each of the plurality of flying objects 3 may carry out, or the processing unit 23 of the launcher apparatus 2 and the processing unit 33 of each of the flying objects 3 may carry out. A specific method of calculating the optimal assignment of firepower will be described later.
A fifth step S5 is executed after the fourth step S4.
At the fifth step S5, the launcher apparatus 2 or the flying object 3 which has calculated the optimal assignment transmits the calculation result to the flying objects 3. The purpose to transmit the calculation result of the optimal assignment is to share the optimal assignment by the whole firing control system 1. It is desirable that this sharing is carried out by radio communication between the communication device 22 of the launcher apparatus 2 and the communication device 32 of each flying object 3.
When a plurality of optimal assignments are calculated by the launcher apparatus 2 and the plurality of flying objects 3, it is desirable that one of the calculation results is selected, and the selected calculation result is shared by the radio communication. For example, the selection may be carried out by the launcher apparatus 2 or by any of the flying objects 3. The selected optimal assignment is transmitted to all the flying objects 3 by the radio communication. When anyone of the flying objects 3 selects, it is not necessary to transmit the optimal assignment to itself.
Note that a procedure may be added in which a user of the launcher apparatus 2 approves before transmitting the selection result to the flying objects 3.
A sixth step S6 is executed after the fifth step S5.
At the sixth step S6, the plurality of flying objects 3 intercept the plurality of targets 4 according to the optimal assignment. In other words, each of the flying objects 3 changes the interception object to the target 4 specified by the optimal assignment from the target 4 assigned in the launching according to necessity and executes the interception of the target 4. A seventh step S7 is executed after the sixth step S6, and the firing control method in this embodiment ends.
So far, each step of the firing control method by using the firing control system 1 in the present embodiment has been described. Next, a specific method of the optimal assignment to be carried out at the fourth step S4 will be described. In the calculation of the optimal assignment, a threat degree of each of the targets 4 is calculated, the firepower of each of the flying objects 3 is calculated, and a combination of the target 4 and the flying object 3 is determined based on the calculated threat degree and firepower.
Referring to
In an example of
In case of
In an example of
In case of
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It can be considered to primarily intercept the target 4A estimated to be the leader in
In an example of
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As above, referring to
A method of calculating the firepower of flying object 3 will be described. There are a maximum speed, a destructive force and so on as references used to numerize the firepower of flying object.
In an example of
The calculation of the firepower of flying object 3 based on the destructive force of the flying object 3 will be described. It is desirable that the destructive force of the flying object has been measured by using a sample for every model of the flying object 3 or for every manufacturing lot. Since the destructive force of the flying object 3 is in direct conjunction with the firepower of flying object 3, it becomes possible to intercept the target 4 with a larger mass, and the target 4 protected by an robust outer wall when the destructive force is larger. Therefore, it is sufficient to carry out the weighting appropriately by use of a conversion function and a conversion table so that the firepower of flying object 3 becomes larger when the destructive force is larger.
As such, it has been described that the firepower of flying object 3 can be numerized based on the maximum speed and the destructive force. These two references are only an example and other references are not excluded. Also, the numeralization using a different reference means the unification of the reference, and the firepower of the flying object 3 can be compared in a combination of a plurality of references by carrying out the weighting appropriately.
According to the firing control system 1 and the firing control method in the embodiments, the optimal assignment in firepower can be carried out based on data acquired after launching the plurality of flying objects 3 in order to intercept the plurality of targets 4. Therefore, it becomes possible to launch the flying object 3 before the target 4 approaches the neighborhood of the launcher apparatus 2, and to intercept the target 4 efficiently in a sufficiently distant place from the launcher apparatus 2. Also, even if it is detected that a decoy is contained in a plurality of targets 4 after launching the flying objects, it becomes possible to assign the flying object 3 to another target 4 without making the flying object 3 assigned to the decoy in the launching wasteful.
As described above, the present invention has been specifically described with reference to the embodiments. The present invention is not limited to the embodiments and various changes and modification are possible in a range which does not deviate from the gist of the present invention. Also, the features described in the embodiments can be freely combined in the range in which there is not any technical contradiction.
Number | Date | Country | Kind |
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2017-169983 | Sep 2017 | JP | national |