In accordance with various embodiments, an intelligent munition can be shot from a firearm and travel a relatively long range before deploying a parachute that slows the munition to a speed conducive to accurately shooting at least one electrode into a target without deadly force. The electrode is then activated to temporarily disable the target with an electrical pulse pattern.
Historically, munitions have been rather crude with a projectile being shot through the air via an explosive charge. Modern electronics technology has allowed for the incorporation of circuitry into some munitions, like rockets and missiles, but those devices were rather large, complex, and expensive. As electronics and computing capabilities have evolved, intelligent electronics have become small enough to incorporate into small-scale munitions, such as shotgun shell form factors.
While munitions utilizing modern technology have greater damage wielding capabilities, there is an increasing trend for non-lethal munitions that disable a target instead of wounding or killing the target. Conventional non-lethal munitions configured to disable a target are plagued with inaccuracy, short range, and inconsistent results. Hence, there is a need for a non-lethal munition that can accurately disable a target from a relatively long range utilizing intelligence provided by on-board circuitry.
Accordingly, assorted embodiments are directed to a small-arms munition having electrodes that deploy and activate to debilitate a target over a relatively long range. By slowing down the munition before electrode deployment, non-lethal force can be assured and the accuracy of electrode deployment can be increased. The ability to incorporate intelligence and electronic circuitry into the munition allows for sophisticated electrode usage as well as efficient usage of on-board power to maintain a disabled condition for a target over a relatively long duration.
It is contemplated that the barrel 124 has riflings that spin the projectile as it travels through the barrel 124. Upon breach of the projectile 104 load from the muzzle of the barrel 124, a muzzle velocity can be measured that corresponds with the possible range of the projectile. Although not required or limiting, embodiments arrange a munition with propellant that produces approximately 140 m/s muzzle velocity for the projectile 104 load, which allows for an accurate projectile 104 range of 100 meters. Propelling the projectile 104 can allow for additional projectiles 104 to be quickly loaded and shot from the firearm 120, but such increased cyclic capability does not increase the ability for the projectile(s) to provide a non-lethal and temporarily disabling condition for a target.
The use of electrical discharge instead of a projectile striking and/or penetrating the target 106 allows for more reliable non-lethal force to be applied. However, the capabilities of the electrodes 136 are limited by the length of the respective wires 138, which restricts the effective range 140 of the electrode-based weapon 130, such as to less than 10 m. Thus, there is a need for a weapon that can provide the reliable non-lethality of the electrodes 136 with the range and cyclic capability of a projectile-based firearm 120.
It is noted that the form factor, and/or length, of the case 152 can correspond with the amount of gunpowder, or other propellant, that can be packaged within the munition cavity 156. As such, different munition case 152 sizes can be utilized to provide different munition ranges, muzzle velocities, and packaged munition weight.
The internal propellant can be activated with one or more primers 158 that are positioned within a head 154 portion of the munition 150. Due to the explosive activation of the propellant via the primer 158, the head 154 may be a different, more robust, material than the case 152, such as a metal, ceramic, or rubber, that reliably positions the primer 158 for contact with a firing pin while ensuring the resulting propellant explosion forces the internal munition load down the firearm barrel instead of backward towards the firing mechanism of the receiver.
The cross-sectional view of
In some embodiments, the electrode assembly 164 has a control section 166 connected to an electrode deployment section 168 and an antenna ballistic shell 170. The control section 166 can provide electrical power and intelligent hardware control of the deployment and activation of electrodes housed in the deployment section 168. The antenna ballistic shell 170 can be configured with one or more antennas that can communicate with a user 132, firearm 120, or control module that remains proximal the firearm during load 160 travel down range. It is explicitly noted that there is no physical connection between the load 160 and the firearm 120 or user 132 once the load 160 leaves the firearm barrel 124, which contrasts the electrode wires 138 that limit effective deployment range of tasers and other tethered, hand-held devices.
The construction, position, and function of an antenna can be optimized to allow the control section 166 to automatically identify where the load 160 is relative to the firearm/user. For instance, one or more types of antennas can concurrently, or sequentially, be active to wirelessly communicate data with a user and/or stationary control module that identifies how far down range the load 160 is in real-time. An antenna can be supplemented, or replaced, by an internal timer of the control section 166 that identifies the load's position relative to the firearm and/or target based on the load's muzzle velocity detected by one or more sensors contained with the control section 166.
The use of multiple antennas, in accordance with some embodiments, can provide a more secure and reliable load 160 deployment compared to using a single antenna, particularly in harsh environments where wireless communications, such as radio frequency, intermediate frequency, sonar, or optical wavelength, are degraded by magnetic, electrical, or mechanical noise. A secure and reliable wireless communication pathway allows the load 160 to be manipulated manually by a user. That is, an automatic load deployment scheme carried out by the control section 166 can be overridden or supplemented by user input. As a non-limiting example, a user can if identify the load 160 needs to move relative to a target, needs to deploy sooner, or needs to deploy later than prescribed by the scheme before initiating an alteration to the scheme to accommodate for such identified conditions.
It is noted that without the intelligent circuitry of the control section 166, the load 160 would not have the ability to communicate and would not be able to carry out an autonomous deployment scheme. Instead, a “dummy” load would be limited to the physical aspects and features arranged into the load, which would be quite unreliable and inefficient compared to the intelligent load 160 utilized in various embodiments.
In flight and after the load 160 exists a barrel muzzle, it is contemplated that the ballistic shell 170 protects the control 166 and deployment 168 sections while providing optimized flight characteristics, such as with grooves, veins, projections, or other physical features that increase the consistency of flight and accuracy of the load 160. It is contemplated that the ballistic shell 170 stays intact throughout flight or may break apart to reveal the electrode deployment section 168. Regardless of the configuration of the ballistic shell 170, the control section 166 and deployment section 168 become exposed at a detected distance from the firearm and/or target, such as 5 m, by ejecting the shell 170.
Although not required or limiting, each electrode 154 can be propelled by a propellant substance, such as gunpowder, pressurized air, or another explosive material, that is activated mechanically or electronically with a primer, igniter, or valve. In the event a powder propellant is used for the respective electrodes 184, the containment feature 190 can be configured to direct resultant force outward from the base 182. As shown, the containment feature 190 can have one or more apertures that allows electrical transfer rods 192 to pass electrical signals from a connected control section 168 to the electrodes 184 and tethers 188.
The cross-sectional view of
One or more electrical ground planes 206 can enable electrical operation of the control assembly 204. Upon electrical activation directed by the control assembly 204, a parachute 208 can be deployed from the control section 200 to slow the velocity of the munition to a predetermined value that promotes accurate, efficient, and non-lethal electrode deployment toward a target. Although not required or limiting, the parachute 208 can have a contained propellant package 210 physically contacting a compressed garter spring 212 and a parachute package 214. The parachute package 214 can contain one or more parachutes 216 that are configured to slow the control section 200 to an electrode deployment velocity, such as 60-100 m/s. For instance, the parachute package 214 can contain one or more parachutes made of plastic, fabric, or other textile and sized to extend from a packaged state to a deployed state, with the help of the propellant 210 and spring 212, that gradually slows the control section 200 without suddenly stopping, jolting, or altering trajectory, yaw, or pitch.
The control housing 202 can additionally support an electrical transformer 218, such as a high voltage toroid transformer, that contacts a switching network 220 and an electrical transfer plate 222. The switching network 220 can consist of one or more circuits configured to provide pulsed electrical output to the electrodes connected via the transfer plate 222. The cross-sectional view of
In some embodiments, the control package 230 has one or more sensors 248, such as an accelerometer, proximity detector, sonar detector, or optical detector. The control package 230 can have one or more communication pathways with the host firearm, host user, and/or target via a communication circuit 250. It is contemplated, but not required, that the communication circuit 250 provides radio frequency, intermittent frequency, cellular, broadband, and/or optical data pathways. The ability to arrange sensors 248 and/or communication circuitry 250 allows the control package 230 to intelligently monitor and react to real-time conditions while traveling from a firearm to a target.
The propulsion of the non-lethal load down the barrel and towards the target at a muzzle velocity can be detected by one or more sensors of the control assembly of the load. The detection of the muzzle velocity of the load can be complemented by detection of other characteristics by the control assembly, such as spin rate, wind velocity, wind direction, and distance to target. The ability to utilize one or more sensors to concurrently, sequentially, and redundantly detect current conditions of the non-lethal load in-flight to the target allows the load to intelligently react to optimize accuracy, electrode deployment, and non-lethality. The detection of load conditions allows the load to quickly and precisely compute the distance to a target in real-time. For instance, a radio frequency can be used concurrently and/or redundantly with an optical, acoustic, or mechanical detector to verify how far the load is from the target and how fast the load is traveling.
It is contemplated that the load can be utilized manually in step 268 with a user triggering deployment of an electrode sequence. Such manual triggering can be done via wireless activation via cellular, radio frequency, intermediate frequency, sonar, laser, or other wireless communication protocol controlled by the user. Alternatively, step 270 can autonomously detect at least distance to the target and deploy an electrode sequence in response to the detected distance to target, which may involve one or more detected conditions, such as load velocity. Various embodiments can utilize a combination of steps 268 and 270 by having a user supplement autonomous control, such as with a laser painting a target.
The computation of the distance to the target and velocity of the load allows the control assembly to determine when to deploy a parachute in step 272 as part of an electrode sequence to slow the load to a predetermined electrode deployment speed, such as 80 m/s. That is, the control assembly of a load can intelligently deploy a parachute based on multiple detected conditions instead of relying on a simple timer or single sensed parameter. The deployment of a parachute in step 272 can involve combusting a propellant and/or releasing potential mechanical energy, such as via a spring.
The releasing of a parachute and slowing of the load to a predetermined speed allows for time to alter the position and/or orientation of the electrode deployment section of the load relative to a target, which can accommodate for a moving target and/or changing environmental conditions. Decision 274 evaluates if, after parachute deployment, additional mechanisms are to be activated to change the pitch, yaw, and orientation of the electrode deployment section of the load, which can be detected and verified by the control assembly of the load. If so, step 276 activates one or more electrode position movement mechanisms, such as a solenoid, pneumatic jet, latch, valve, piezoelectric actuator, or piston, to change where the electrodes are pointing.
At the conclusion of the alteration of the position of the electrode deployment section in step 276, or in the event no repositioning is called for from decision 274, step 278 proceeds to activate one or more electrodes to be shot from the deployment section towards the target. The shooting of the electrodes can be done with one or more propellants and can involve the tethering of at least one electrically conductive wire that is electrically connected to, and controlled by, the control assembly. It is noted that the electrodes are shot towards the target in step 278 while the load is in-flight, in motion towards the target, and off the ground.
The propelled electrodes then strike the target with non-lethal force, but sufficient force to physically connect each electrode to the skin or superficial tissue of the target in step 280 with the aid of the shape, weight, and material of the respective electrodes. The physical and electrical connection of the electrodes to the target is detected by the control system and triggers the control assembly to activate the discharge of electrical current to the target. The electrical current can be intelligently chosen by the control assembly to disable the target in response to the number of electrodes concurrently activated. It is noted that the control assembly can intelligently choose the type of electrical current discharge as part of step 280, such as by constant or pulsed discharge.
While step 280 can operate for any amount of time, some embodiments intelligently utilize less than all of the power reserve of the control assembly. As such, the target can be disabled and the control assembly can continue to have power to monitor target activity even after the control assembly comes to rest on the ground. Decision 282 evaluates if the target has subsequently moved after being disabled. The detection of target movement prompts step 280 to be revisited and another electrical discharge to be released with the expectation that further debilitation will be experienced by the target. In the event no target movement is detected, step 284 continues to monitor at least the target until the power reserve of the control assembly is depleted.
During step 284, it is contemplated that other conditions can be monitored, logged, and or communicated to a remote host. For instance, one or more detectors of the control assembly can be used to detect the number, movement, and speed of various people and/or equipment present near the target. As another non-limiting example, step 284 can log the efficiency of the electrode deployment and target disabling so that alterations to future munition deployments can be undertaken proactively, such as parachute deployment speed or amount of propellant used for the respective electrodes.
The present application claims priority to U.S. Provisional Patent Application No. 62/895,354 filed Sep. 3, 2019, the contents of which is hereby incorporated by reference
This invention was made with government support under M67854-19-P-6612 awarded by MARCORSYSCOM. The government has certain rights in the invention.
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