USH218H - Weapon trainer using IR radiation emitted from target - Google Patents
Weapon trainer using IR radiation emitted from target Download PDFInfo
- Publication number
- USH218H USH218H US06/862,337 US86233786A USH218H US H218 H USH218 H US H218H US 86233786 A US86233786 A US 86233786A US H218 H USH218 H US H218H
- Authority
- US
- United States
- Prior art keywords
- rifle
- detector
- target
- weapon
- training device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G3/00—Aiming or laying means
- F41G3/26—Teaching or practice apparatus for gun-aiming or gun-laying
- F41G3/2616—Teaching or practice apparatus for gun-aiming or gun-laying using a light emitting device
- F41G3/2622—Teaching or practice apparatus for gun-aiming or gun-laying using a light emitting device for simulating the firing of a gun or the trajectory of a projectile
- F41G3/2661—Teaching or practice apparatus for gun-aiming or gun-laying using a light emitting device for simulating the firing of a gun or the trajectory of a projectile in which the light beam is sent from the target to the weapon
Definitions
- Another object of this invention is to provide a lightweight and inexpensive training system that does not require expensive dedicated buildings or land to enclose target ranges.
- a system which depends upon the normal levels of infrared radiation emitted from warm blooded animals, such as humans.
- a pyroelectric long wave length infrared detector is mounted upon a simulated rifle or unloaded real rifle, or other weapon. This detector is mounted on the end of a rifle and boresighted with the rifles sights in such a way that a positive indication is given when the rifle is pointed at a suitable infrared emitting animal target.
- a second switch indicates when the trigger of the weapon is pulled. If a trigger pull is detected at a time when an animal infrared signal is present, the system generates an electronic pulse indicating that a target hit has occurred. This pulse may be used to drive a visible or audible signaling device to inform the user of success.
- a marksmanship training system comprising an infrared detector mounted upon a simulated rifle or unloaded real rifle, or other weapon. This detector is mounted with lenses in such a way that a positive indication is given when the rifle is pointed at a suitable infrared emitting animal target. A second detector indicates when the trigger of the weapon is pulled. If a trigger pull is detected at a time when an animal infrared signal is present, the system generates an electronic pulse indicating that a target hit has occurred. This pulse may be use to drive a visible or audible signaling device to inform the user of success.
- FIG. 1 is a block diagram of the training system described herein.
- FIG. 2 is the electrical schematic of an actual embodiment of the system.
- FIG. 1 is a schematic of the weapon trainer system and IR lens.
- Lens 1 is used to focus infrared energy being emitted from a human target onto a pyro electric detector 2, which detector provides an alternating current output signal from an internal chopper.
- lens 1 must be chosen so that it can operate at these long wavelengths and properly focus energy onto the detector.
- a lense with a narrow field of view combined with a detector sensitive to 10 to 14 micron wavelengths will indicate the presence of a man-target only when the lense is pointed at the target.
- the lens and detector are mounted upon a weapon in a manner such that the targets identified by the lens and detector are the same as those that would be identified by the normal sight of the weapon.
- detector 2 The output of detector 2 is processed by low pass filter 3. This filter eliminates high frequency noise generated in the environment and in the detector itself. This noise would otherwise cause false indications of successful target hits.
- the output of the filter 3 is amplified by high gain amplifier 4.
- An inverted output is provided by inverting buffer 5.
- output from the detector/amplifier system is blocked for a short period after target acquisition by the output of timer 7. This blocking is accomplished by output disabling circuit 8.
- RESET output from amplifier 4 and SET output from inverting buffer 5 is passed through amplifiers 9 and 10 to the set and reset inputs of flip-flop 11.
- Trigger switch 13 is normally open, and thus normally provides a false signal to the other input of AND gate 12. When the trigger is pulled, the switch opens and a true signal is applied to the AND gate input. If the other AND input is also true at that moment, the output of AND gate 12 will also indicate true. This means that the trigger was pulled at a time when the rifle was properly targeted.
- FIG. 2 is a detailed schematic of a particular embodiment of the invention.
- the chopper modulated output from the infrared detector is passed through the low pass filter 3 and amplifier 4.
- the SET output of amplfier 4 is passed through amplifier 9 to flip-flop 11.
- the output of amplifier 4 is also inverted by inverting buffer 5.
- the RESET output of buffer 5 is passed through amplifier 10 to flip-flop 11.
- the SET and RESET outputs of 4 and 5 are also sent to timer 7 via signal detector 6.
- the timer output activates output disabling circuit 8.
- the net effect of the operations of 6, 7, and 8 is to disable the SET and RESET lines for a short period of time, in this case 250 mS, after any change in the status of these lines is detected. If the change in status does not last for at least 250 mS, the timer 7 will time out, and the output diable circuit 8 will also cease to function. Once this happens, the new status of the SET and RESET lines is available to flip-flop 11 via amplifiers 9 and 10.
- the output of flip-flop 11 is correlated with the pulling of trigger switch 13 by AND gate 12. If 13 is activated when 11 is SET, 12 will output a pulse. This pulse can be used to activate a signal indicating that a target hit has occurred.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- General Engineering & Computer Science (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
A marksmanship training system has been developed which depends upon the mal levels of infrared radiation emitted from warm-blooded animals, such as humans. An infrared detector is mounted upon a simulated rifle or unloaded real rifle, or other weapon. This detector is mounted with IR lenses in such a way that a positive indication is given when the rifle is pointed at a suitable infrared emitting animal target. A second detector indicates when the trigger of the weapon is pulled. If a trigger pull is detected at a time when an animal infrared signal is present, the system generates an electronic pulse indicating that a target hit has occurred. This pulse may be used to drive a visible or audible signaling device to inform the user of success.
Description
Numerous training devices have been developed which allow marksman to be trained without the use of expensive and dangerous live ammunition. However, most such devices require that the training take place under unrealistic conditions, such as when special targets containing light sources are used. Furthermore, even live fire training takes place under artificial conditions, compared to those conditions found in actual warfare, since the fire must be confined to target ranges and confined in narrow paths for safety reasons.
Accordingly, it is an object of this invention to provide a marksmanship training device which can be used under fully realistic conditions against the actual types of targets that would be encountered in warfare.
Another object of this invention is to provide a lightweight and inexpensive training system that does not require expensive dedicated buildings or land to enclose target ranges.
To achieve these and other objects, a system has been developed which depends upon the normal levels of infrared radiation emitted from warm blooded animals, such as humans. A pyroelectric long wave length infrared detector is mounted upon a simulated rifle or unloaded real rifle, or other weapon. This detector is mounted on the end of a rifle and boresighted with the rifles sights in such a way that a positive indication is given when the rifle is pointed at a suitable infrared emitting animal target. A second switch indicates when the trigger of the weapon is pulled. If a trigger pull is detected at a time when an animal infrared signal is present, the system generates an electronic pulse indicating that a target hit has occurred. This pulse may be used to drive a visible or audible signaling device to inform the user of success.
A marksmanship training system comprising an infrared detector mounted upon a simulated rifle or unloaded real rifle, or other weapon. This detector is mounted with lenses in such a way that a positive indication is given when the rifle is pointed at a suitable infrared emitting animal target. A second detector indicates when the trigger of the weapon is pulled. If a trigger pull is detected at a time when an animal infrared signal is present, the system generates an electronic pulse indicating that a target hit has occurred. This pulse may be use to drive a visible or audible signaling device to inform the user of success.
FIG. 1 is a block diagram of the training system described herein.
FIG. 2 is the electrical schematic of an actual embodiment of the system.
FIG. 1 is a schematic of the weapon trainer system and IR lens. Lens 1, is used to focus infrared energy being emitted from a human target onto a pyro electric detector 2, which detector provides an alternating current output signal from an internal chopper.
A man at 98 degrees F. radiates longwave infrared energy of wavelengths in the 10 to 14 micron region. Thus, lens 1 must be chosen so that it can operate at these long wavelengths and properly focus energy onto the detector. A lense with a narrow field of view combined with a detector sensitive to 10 to 14 micron wavelengths will indicate the presence of a man-target only when the lense is pointed at the target. Preferably, the lens and detector are mounted upon a weapon in a manner such that the targets identified by the lens and detector are the same as those that would be identified by the normal sight of the weapon.
The output of detector 2 is processed by low pass filter 3. This filter eliminates high frequency noise generated in the environment and in the detector itself. This noise would otherwise cause false indications of successful target hits.
The output of the filter 3 is amplified by high gain amplifier 4. An inverted output is provided by inverting buffer 5.
In order to screen out false signals caused by detector ringing and other forms of noise, output from the detector/amplifier system is blocked for a short period after target acquisition by the output of timer 7. This blocking is accomplished by output disabling circuit 8.
The RESET output from amplifier 4 and SET output from inverting buffer 5 is passed through amplifiers 9 and 10 to the set and reset inputs of flip-flop 11.
If a valid target is engaged at a given point in time, the flip-flop output to AND gate 12 will be true. If target engagement is lost, the RESET line will cause the flip-flop to output a false signal to AND gate 12.
FIG. 2 is a detailed schematic of a particular embodiment of the invention. The chopper modulated output from the infrared detector is passed through the low pass filter 3 and amplifier 4. The SET output of amplfier 4 is passed through amplifier 9 to flip-flop 11. The output of amplifier 4 is also inverted by inverting buffer 5. The RESET output of buffer 5 is passed through amplifier 10 to flip-flop 11.
The SET and RESET outputs of 4 and 5 are also sent to timer 7 via signal detector 6. The timer output activates output disabling circuit 8. The net effect of the operations of 6, 7, and 8 is to disable the SET and RESET lines for a short period of time, in this case 250 mS, after any change in the status of these lines is detected. If the change in status does not last for at least 250 mS, the timer 7 will time out, and the output diable circuit 8 will also cease to function. Once this happens, the new status of the SET and RESET lines is available to flip-flop 11 via amplifiers 9 and 10. The output of flip-flop 11 is correlated with the pulling of trigger switch 13 by AND gate 12. If 13 is activated when 11 is SET, 12 will output a pulse. This pulse can be used to activate a signal indicating that a target hit has occurred.
Claims (6)
1. A weapons training device comprising:
means for detecting infrared radiation emitted by warm-blooded animals, including humans and heated targets;
a simulated rifle; and
means for detecting when the trigger of the said simulated rifle is pulled;
wherein the said means for detecting infrared radiation is mounted upon the rifle in such a manner as to detect radiation emitted by said animals at such times as the rifle is properly targeted at said animals.
2. The training device of claim 1 wherein the said means for detecting infrared radiation comprises a pyroelectric detector.
3. The training device of claim 2 wherein said means further comprise a low pass filter.
4. The training device of claim 3 wherein said means for detecting when the trigger is pulled comprises a switch and a logic gate.
5. The training device of claim 4 wherein said logic gate is an AND gate.
6. The training device of claim 5 wherein the said means for detecting infrared radiation further comprise an inverting buffer, a timer, an output disabling circuit, and a flip-flop wherein the output of said flip-flop is connected to an input of said AND gate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/862,337 USH218H (en) | 1986-05-12 | 1986-05-12 | Weapon trainer using IR radiation emitted from target |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/862,337 USH218H (en) | 1986-05-12 | 1986-05-12 | Weapon trainer using IR radiation emitted from target |
Publications (1)
Publication Number | Publication Date |
---|---|
USH218H true USH218H (en) | 1987-02-03 |
Family
ID=25338252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/862,337 Abandoned USH218H (en) | 1986-05-12 | 1986-05-12 | Weapon trainer using IR radiation emitted from target |
Country Status (1)
Country | Link |
---|---|
US (1) | USH218H (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5311019A (en) * | 1992-04-14 | 1994-05-10 | Loral Electro-Optical Systems, Inc. | Pyroelectric hybridized long-wave infrared laser radiation detector assembly |
US5966859A (en) * | 1997-11-14 | 1999-10-19 | Samuels; Mark A. | Devices and methods for controlled manual and automatic firearm operation |
-
1986
- 1986-05-12 US US06/862,337 patent/USH218H/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5311019A (en) * | 1992-04-14 | 1994-05-10 | Loral Electro-Optical Systems, Inc. | Pyroelectric hybridized long-wave infrared laser radiation detector assembly |
US5966859A (en) * | 1997-11-14 | 1999-10-19 | Samuels; Mark A. | Devices and methods for controlled manual and automatic firearm operation |
US6174288B1 (en) | 1997-11-14 | 2001-01-16 | Mark A. Samuels | Devices and methods for controlled manual and automatic firearm operation |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3898747A (en) | Laser system for weapon fire simulation | |
US4102059A (en) | Small arms laser training device | |
US4662845A (en) | Target system for laser marksmanship training devices | |
US3104478A (en) | Hit indicator apparatus | |
US4487583A (en) | Receiver garment for weapons engagement simulation system | |
US4177580A (en) | Laser marksmanship target | |
US3633285A (en) | Laser markmanship trainer | |
US4592554A (en) | Equipment for simulated shooting | |
USH538H (en) | Weapon firing inhibitor method and apparatus | |
US10586109B1 (en) | Indoor gunshot detection with video analytics | |
US7927102B2 (en) | Simulation devices and systems for rocket propelled grenades and other weapons | |
US5199874A (en) | Apparatus and method for interfacing indirect-fire devices with MILES | |
US20070122770A1 (en) | Dry fire training module and safe method for training with live conductive energy devices | |
US5808226A (en) | Grenade shell laser system | |
US20030027103A1 (en) | Simulated weapon training and sensor system and associated methods | |
US4150824A (en) | Optoelectronic communications system | |
GB2112241A (en) | Pulsed laser range finder training or test device | |
US4193072A (en) | Combination infrared radio fuze | |
US6863532B1 (en) | Equipment for detecting that a target has received a direct hit from a simulated weapon | |
JP2002228397A (en) | Method and apparatus for simulating exploding launcher | |
USH218H (en) | Weapon trainer using IR radiation emitted from target | |
US4793811A (en) | Arrangement for shot simulation | |
USH1451H (en) | Audible explosive device simulator system for miles | |
KR102265348B1 (en) | Combat training simulation system using LED | |
JP2001124497A (en) | Shooting training device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: UNITED STATES OF AMERICA, AS REPRESENTED BY THE SE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:MARSHALL, ALBERT H.;FIELDS, RANDY R.;REEL/FRAME:004570/0814;SIGNING DATES FROM 19860310 TO 19860331 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |