JP4077910B2 - Combat communication system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combat communication apparatus and method.
[0002]
[Prior art]
Communication between soldiers during exercises and battles is the most important. In particular, one-way or two-way communication is required for the operation of IFF (enemy ally identification) and battle simulation (simulated battle) systems.
[0003]
Communication systems related to combat simulation include, for example, a laser irradiator attached to a firearm that activates a photodetector against a potential target. Laser activated detectors show the effect of firing from each firearm.
[0004]
In the known IFF system disclosed in European Patent Application EP 0 254 197, the laser signal and the radio signal are simultaneously transmitted to a potential target. When the target receives these two signals, it generates a response radio signal for confirming its ID (identity).
[0005]
In the systems disclosed in German patent applications DE 2 215 295 and DE 2 215 463, the modulated laser signal is aimed at potential enemies and can be responded by radio or laser beam. A similar system is used for animal identification and is disclosed in this regard in European patent application EP 0 108643.
[0006]
[Problems to be solved by the invention]
These known systems are difficult to operate and are prone to unwanted interference between simultaneous communication operations.
[0007]
Accordingly, an object of the present invention is to provide a combat communication apparatus and method suitable for at least one of combat communication suitable for IFF and simple battle simulation that enables safe and guaranteed operation.
[0008]
[Means for solving the problems and effects]
Now, the combat communication device of the present invention has the following features. That is, the combat communication apparatus includes an inquiry unit and a response unit, and each inquiry unit encodes a laser irradiator that irradiates an inquiry beam including inquiry data, and the inquiry data in the inquiry beam together with a frequency code. And a response signal from the response unit. A signal receiver that has been tuned to find a frequency that is not currently used to generate the frequency code A signal receiver; A holder for mounting the laser irradiator on a firearm, a trigger for operating the laser irradiator and mounted on the holder, and an enemy-ally-indicator that reacts to the response signal; Each of the response units has at least one detector for receiving the inquiry beam output from the inquiry unit, at least one demodulator for demodulating the inquiry data, and a selectable carrier frequency. A signal transmitter for generating the response signal at the carrier frequency; Means for delaying the generation of the response signal by a random time after receiving the inquiry beam, whether the carrier frequency is actually empty before the signal transmitter generates the response signal at the carrier frequency; Means to delay the generation of the response signal by another random time if it is not available Have Here, the carrier frequency of the response signal is set by a frequency code in the inquiry data of the inquiry beam.
[0009]
A method of combat communication between an inquiry unit and a response unit includes determining an empty carrier frequency in the inquiry unit and transmitting an optical inquiry beam from the inquiry unit to the response unit, wherein the inquiry beam is modulated. Encoding the empty carrier frequency; receiving the inquiry beam at the response unit; demodulating the inquiry beam to determine an empty carrier frequency in the inquiry beam; and responding to the inquiry beam Generating a response signal in the response unit at the empty carrier frequency; Delaying the generation of the response signal by a random time after receiving the inquiry beam, wherein the empty carrier frequency is actually generated before the response signal is generated at the empty carrier frequency in the step of generating the response signal. A step of delaying the generation of the response signal by another random time. Have
[0010]
In the following aspects of the invention, the laser beam from the inquiry unit is modulated to transmit an inquiry signal indicative of the desired response carrier frequency. The inquiry signal may also provide additional information, such as an inquiry unit ID and / or location. By transmitting the desired response carrier frequency, interference between simultaneous IFF operations can be avoided. In addition, transmission security is increased.
[0011]
In the combat communication device, the signal receiver of the inquiry unit is an ultrasonic receiver that receives the ultrasonic response signal, and the signal of the response unit Sending The transmitter may be an ultrasound transmitter that generates a response signal in response to the inquiry beam.
[0012]
Ultrasonic waves, that is, sound waves having a frequency higher than 20 kHz are difficult to detect and can avoid interference with existing communication systems.
[0013]
In the combat communication device, the signal receiver of the inquiry unit is a light receiver and the signal of the response unit Sending The belief may be a light source that generates a response signal in response to the inquiry beam and diffuses and outputs it.
[0014]
Using a diffuse light beam for the response signal has the advantage that the response unit does not need to know the position of the inquiry unit. In order to optimize the range of such a system, the inquiry unit preferably comprises imaging optics in parallel with the laser irradiator so as to image the response unit on the optical receiver.
[0015]
The inquiry unit and the response unit according to the present invention can be used for IFF and combat simulation. In both applications, the inquiry unit first transmits a laser beam, ie a modulated laser beam, to the target. The modulated laser beam preferably encodes the desired response frequency. After receiving the laser beam, the response unit preferably decodes the response frequency, sets the frequency of the signal transmitter, and outputs a response signal. The response signal may include the response unit identification code (for IFF) or may be used to identify which detector has hit (for combat simulation) Or you may have both.
[0016]
Further, interference between simultaneous communication operations can be reduced by adding a random delay generator to the response unit that determines the random delay before transmitting the response signal.
[0017]
Preferably, in order to avoid collision with an optical range finder having a laser that normally operates at 1.5 μm or 905 nm, the laser has an infrared wavelength, especially a wavelength shorter than 2000 nm (preferably a near infrared wavelength of 780-905 nm). Works with. It has also been found desirable to use a continuous wave laser (CW laser) and to modulate the amplitude of the output power in a single pulse. Such lasers can be modulated more accurately than inherently pulsed semiconductor lasers operating at 1.5 μm, which are not normally CW lasers. Improvement in modulation quality reduces signal strength while maintaining a good signal-to-noise ratio (S / N ratio). This reduces visibility in night vision systems, the required laser irradiation and the risk of eye damage.
[0018]
The inquiry unit may include an “enemy-friend” display that indicates whether a valid response signal has been received. In addition to a display or the like, the result of the IFF operation may be displayed with an appropriate lamp (such as an LED) and informed by an audio signal or notified by any of them. .
[0019]
When using this system in battle simulation, use multiple detectors for each inquiry unit. The response signal then carries information on the active detector, which determines the detector (and thereby part of the body) that the inquiry unit sending the laser beam has hit by the laser beam. This information can be displayed as a feedback of the requester's sniper skill.
[0020]
Preferably, the laser may be attached to the firearm and have a lever for operation.
[0021]
Furthermore, the laser irradiator comprises a diffusing optical device for adjusting the laser beam to a target distance and / or a desired operation (IFF, battle simulation or aiming).
[0022]
The invention also describes the individual components of the communication device, such as its master control unit and its laser assembly, which can also be used independently of the system. In particular, the laser assembly can be used, for example, in simple combat simulations, target supplements, or support systems that do not have a communication device signal receiver and / or response unit.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a combat communication system according to the present invention will be described below with reference to the accompanying drawings.
[0024]
FIG. 1 shows basic components of a harness set of an IFF / simulation apparatus according to a preferred embodiment. These components include a master control unit 1, two arm harnesses 2, a helmet harness 3, and a laser assembly 4. Each of the master control unit 1, the arm harness 2, and the helmet harness 3 includes at least one photodetector 5 that detects the wavelength of light output from the laser assembly. In the present embodiment, the arm harness 2 includes two detectors and one control circuit 50 arranged on both sides of the arm. The helmet harness 3 includes four detectors and a control circuit 50, and each detector covers a range of at least 90 degrees.
[0025]
The mechanical configuration of the laser assembly 4 is shown in FIGS. The laser assembly 4 includes a housing having a bottom portion 8 and a lid portion 9. A clamp 10 (not fully visible) is attached to the bottom side of the housing to secure the housing to the firearm.
[0026]
The laser assembly 4 further includes a lever 11 constituted by a first part 12 and a second part 13 connected by a first hinge 14. This lever is used to activate the laser assembly, start the IFF procedure, aim, or launch a simulated fire as described below. The lever 11 has a safe off position indicated by 16. In this off position, the lever 11 is on the sides of the housings 8, 9 and the second part 13 is folded around the first hinge 14 so as to be inside the U-shaped first part 12. When the lever 11 is moved to the ON position, the first part 12 rotates about the second hinge 19 as indicated by the arrow 17 outward, and the second part 13 is indicated by the arrow 18 outward. As shown, it rotates about the first hinge 14. Thus, the lever 11 is brought to the first inactive on position 21. In this position, the lever 11 extends downward from the laser assembly 4. The end faces of the parts 12 and 13 are in contact with each other, so that the second part 13 cannot further rotate around the first part 12. When the second component 13 is pushed down toward the firearm along the direction indicated by the arrow 22, the entire lever 11 is centered on the hinge 19 against the force of a spring (not shown) and a micro switch (not shown). ) And rotate to the activity-on position 16A, which is the position to activate at least one of the IFF and simulation procedures described below.
[0027]
The lever 11 shown here has a safe, tightened off position that does not interfere with weapon handling. The lever 11 is easily reached by the user to the on position and is pushed to activate the system. A laser assembly 4 is mounted on the weapon and the lever 11 can be rotated from its off to on position, thereby simplifying the handling of the device.
[0028]
The laser assembly 4 further includes a signal transceiver and a laser driver circuit 25 (see FIG. 5) disposed on the bottom 8 of the housing together with the external antenna 26 (FIG. 3). The operation of these parts will be described below.
[0029]
The upper part 9 of the housing forms two semi-cylindrical parallel chambers, one containing a diode laser and a battery 28 that supplies power to the electronics, and the other one containing the laser source and electronics. is doing. The target can be seen freely due to the concavity formed between the chambers.
[0030]
FIG. 5 shows the configuration of the laser source. The configuration includes a semiconductor laser 30, collimating optical equipment including lenses 31 to 33, a holographic diffraction grating 34, and an output window 35. Conventional components are selected for the lens to generate a divergent beam of 0.2-0.5 mrad. The holographic diffraction grating 34 can be rotated by a knob (not shown) arranged outside the housings 8 and 9 with the hinge 35 as an axis. When it moves to the horizontal position 34A, it does not affect the beam. When rotated to that horizontal position, the divergence of the beam is increased to 10 mrad.
[0031]
A beam separator 39A is provided between the lens 32 and the lens 33, and this beam separator 39A is arranged to project light from the output side of the laser assembly onto the detector 39B. A plate 39C arranged symmetrically with respect to the beam separator 39A compensates for the beam offset introduced by the beam separator 39A. The beam separator 39A and detector 39B are used to detect objects in the path of the light beam, such as dust on the window 35 or blockages such as leaves in the output beam. Such an object projects a portion of the laser light and produces a signal in the detector 39B to alert the user. Further, as shown below, the detector 39B may be used for receiving the response signal.
[0032]
The semiconductor laser 30 is a CW device that operates at 820 nm or any other wavelength (preferably 780 to 905 nm), and has an output power of 50 mW, for example. When the laser source is operated using a holographic diffraction grating 34, ie when the output beam has a divergence of 10 mrad, it has an area of approximately 2 km, while the grating 34 is removed and the divergence is reduced to 0.2 mrad. Reducing makes the area larger than 10 km. When operating at distances less than 2 km, it is easy to aim with the inserted diffraction grating.
[0033]
Using a laser in the near infrared (ie 2000 nm) has various advantages:
The semiconductor laser at this wavelength can be operated in CW mode. Therefore, the semiconductor laser can be easily and accurately modulated. This increases the S / N ratio of the output beam.
-Collisions with lasers used in rangefinders (operating at about 1.5 μm) are avoided. The device that detects the presence of the rangefinder is not activated.
However, it goes without saying that the present invention can be realized by laser (or other light source) operation of an arbitrary wavelength.
[0034]
FIG. 5 shows that the semiconductor laser 30 is aligned by adjusting screws 36-38.
[0035]
The LCD display 40 is disposed on the wall behind the lid portion 9 of the housing. The function of this display is described in detail below.
[0036]
FIG. 6 is a block diagram of the electronic circuitry included in the laser assembly 4 of the first preferred embodiment. It consists of a control circuit 42 connected to the LCD display 40, a control and sensor 43 (including lever 11 and detector 39B), a radio transceiver 44, a modulator / driver 45 for the laser diode 30 and a local communication port 46. . All electronic circuits and devices are powered by a battery 28.
[0037]
The wireless transceiver 44 transmits and receives digital messages and comprises conventional suitable modulator and demodulator circuits. The frequency of the receiver and transmitter (ie, the radio channel) can be set by the control circuit 42. In this embodiment, the transceiver 44 is designed to send and receive messages on different radio channels.
[0038]
The local communication port 46 establishes and maintains a connection between the master control unit 1, the arm harness 2 and the helmet harness 3. For this purpose, the local communication port 46 is equipped with a receiver and transmitter suitable for infrared, ultrasonic, inductive, wired or wireless communication. Similar communication ports are arranged on the individual harnesses 2 and 3 and in the master control unit 1.
[0039]
Before describing the operation of this system, the configurations of the harnesses 2 and 3 and the master control unit 1 will be described briefly.
[0040]
Each harness 2 and 3 has a belt to which ends, such as a buckle and a magic tape (not shown), are connected in an openable manner. The belt comprises at least one control unit 50 and a detector 5 sensitive to the light output by the laser assembly 4. Each control circuit 50 has a local communication port similar to the communication port 46 of the laser assembly 4. In addition, the user possesses a master control unit 1, which also comprises a photodetector 5 and a communication port.
[0041]
In the present embodiment, the user has separate harnesses for the arm and the helmet, and the master control unit 1 is separately fixed to the clothes. This device makes it easier for soldiers to attach and detach harnesses when carrying backpacks and other equipment. However, the arm harness and the master control unit 1 can be combined into one harness. Further, more detectors can be added, for example, to the legs, and at least one of the detectors and the harness portion can be reduced and operated.
[0042]
In the following, the basic operation of the system shown in FIGS. 1 to 6 will be described with reference to the simplified flowcharts of FIGS.
[0043]
In the following description, a soldier's equipment that transmits a laser beam is referred to as an “inquiry unit”, and a soldier's equipment that receives a laser beam is referred to as a “response unit”. However, in this embodiment, each soldier's equipment includes all the components of the response unit and the inquiry unit. That is, each soldier can be queried and queried.
[0044]
As mentioned above, the system can be used for IFF, battle simulation and aiming. In IFF and battle simulation, the basic operation is the same. Initially, a soldier equipped with an inquiry unit selects by directing the laser assembly 4 against a potential target. The soldier then operates the lever 11 by pushing it from its inactive on position to the active on position 16A (FIG. 2). This is detected by the control circuit 42 of the laser assembly 4 that continuously samples the state of the lever 11 as shown in step S55 of FIG. Once energization of the lever 11 is confirmed, the laser diode 30 is activated and the inquiry beam is irradiated (step S56).
[0045]
The query beam or query signal is pulse modulated to contain a binary message. This message contains the following query data:
-Frequency code: desired response channel
-ID of the inquiry unit
-Soldier number (optional)
-Extra data (optional)
[0046]
The frequency code defines the desired response channel, ie, the RF carrier frequency (at which frequency the response unit is expected to transmit its response). To determine the proper carrier frequency, the inquiry unit continuously scans all available RF frequencies and maintains a list of current free channels. Prior to sending the inquiry signal, the inquiry unit selects one of these free channels as the desired response channel.
[0047]
The identification code includes identification information of the inquirer, such as a unique ID assigned to each soldier's equipment, together with security information that enables the transmitter / receiver (reception unit) to identify the sender.
[0048]
The extra data includes, for example, information such as the position of the inquiry unit and the type of firearm.
If the soldier's aim is correct, the inquiry beam hits the response unit, which is detected by one of the detectors 5.
[0049]
The response unit continuously scans its detector for the presence of the inquiry signal, as shown in step S60 of FIG. Once it receives the inquiry signal, it confirms its identification code, and if the identification is positive (ie, if the inquiry unit is authorized to query the response unit), the response unit responds Prepare. It extracts the desired response channel from the inquiry signal, and therefore sets the carrier frequency of its radio transceiver 44 (transmitter) and transmits the RF response signal shown in step S61.
[0050]
The response signal includes the following response data:
-Response unit identification code
-Information on the sensor (at least one) that detected the inquiry signal (optional)
-Further data (optional)
[0051]
The identification code is also a identifiable code that identifies the response unit.
[0052]
Information on the detector that detected the inquiry signal identifies which sensor of the response unit detected the signal. This information is particularly useful during battle simulations.
[0053]
Further data also includes information regarding the position of the response unit, ie other suitable data that may be useful during battle or simulation. It also includes information identifying the response unit.
[0054]
When the response unit detects an inquiry signal, it does not warn its owner except during a battle simulation. In this case, this signal can be used to set a hit flag. Soldiers who are hit are considered killed or injured. When the response unit has multiple detectors, for example on the soldier's chest, arm and head, the response unit may also display the hit detector and give a more accurate indication of spurious damage. it can.
[0055]
In the meantime, the inquiry unit monitors the desired response channel (step S57). If a response signal is received within a given time after sending the inquiry signal, it confirms the identity of the response unit, and if the response unit is found to be a friendly unit, the inquiry unit Continue to S58. It activates the display 40 to indicate that the queried entity is a “friend”. On the other hand, in step S59, it is displayed that the inquired entity is “enemy”.
[0056]
In addition to or instead of the operation of the display 40, the results of the IFF survey may be displayed on one or more LEDs or indicated by an audio signal.
[0057]
When the inquiry unit receives an ally response signal, a confirmation signal can be transmitted to the response unit via the laser beam. This improves system reliability. If the response unit does not receive this confirmation signal, it can send the response signal again. Although it is preferable to use such a confirmation signal, proper operation is not required and the corresponding steps are not shown in FIGS.
[0058]
Since the inquiry data and the response data are relatively short, the inquiry signal and the response signal are similarly short. Preferably, the response signal has a length on the order of a few milliseconds. Also, without another preventive measure, when one inquiry signal hits several response units, it may substantially interfere between the response signals.
[0059]
In order to avoid message collisions in this case, the response unit does not immediately respond to the inquiry signal and waits for a predetermined time before activating its radio transmitter. This delay time is selected by a random number algorithm, whereby each response signal is transmitted at its own time. Before sending the response signal, the response unit first checks whether the desired response channel is free. If not, the response is delayed for another random time.
[0060]
FIG. 9 shows a possible configuration of the display 40. This display includes various indicators for the status of the system, indicating the result of the query or a hit in the simulation.
[0061]
The result of the query is indicated by symbol 66. Each part of the symbol is switched on or off depending on whether the response unit is a friend or an enemy. Symbol 67 is a hit indicator. If the response unit indicates which sensor has hit, the corresponding symbol part on the inquiry unit is switched off. As a result, a feedback signal indicating the skill level of the aiming person can be immediately obtained. A series of symbols 68 are used to indicate the status of subsystems such as the helmet harness 3, the arm harness 2, the laser harness 4, and the master control unit 1. The display 40 further has a numeric or alphanumeric part that can be used to provide feedback when setting information such as equipment ID is entered. For this purpose, the master control unit 1 is provided with a numeric keypad (not shown).
[0062]
Although FIG. 1 shows a soldier equipped with a complete harness set including a response unit and an inquiry unit, some soldiers who participated in the battle or simulation may have only an answer unit or an inquiry unit. . For example, the general public may have only a response unit.
[0063]
The laser assembly of the system shown here can be used for IFF, combat simulation and shooting as described above. In addition to this, it can also be used as an aiming aid for placing weapons and targets on a straight line. In this case, the user needs to wear a night-scope device in order to see the near-infrared laser spot.
[0064]
The laser beam can also be used for ranging and communication. For communication, the master control unit 1 can be equipped with a suitable keyboard for entering one or more messages, for example.
[0065]
When using this system, especially when used in battle simulations, the central office radio receiver can be used to monitor the signals output by the response unit and display all encounters and disasters, The battle command can observe the battle simulation with this wireless receiver.
[0066]
In addition to the components described so far, each harness set may further include an earphone 51. Such an earphone can output a signal indicating, for example, whether a given target is recognized as a “friend” or “enemy” during IFF.
[0067]
When used for IFF, once removed from the wearer, the harness set should be equipped with a mechanism that disables the function. For this purpose, the harness set may comprise sensors that measure, for example, humidity, temperature, pulse, vocalization, or other parameters indicative of something close to the human body. Or you may provide the mechanical detector which shows opening | release of the fastener of a harness, the clip of a master control unit, etc. Once these sensors or detectors detect that the harness (or part of it) has been removed from the original wearer, the function of the harness is that the predetermined access code is passed through the keypad of the master control unit. Until it is entered.
[0068]
In the above embodiment, the response signal is a radio frequency electromagnetic wave signal. However, other types of response signals can be used.
[0069]
FIG. 10 shows a second embodiment of the present invention. In contrast to the embodiment of FIG. 6, the second embodiment uses a light receiver 144 and a light emitter 145 instead of an RF transceiver for communication between the inquiry unit and the response unit.
[0070]
When the response unit receives the inquiry signal, it activates the light emitter to transmit the response signal, eg, in pulse modulation. The light emitter 145 can be implemented with one or more LEDs or other diffused light sources, such as on a helmet harness or each photodetector 5, disposed at any part of the response unit.
[0071]
The light receiver 144 may preferably comprise a detector 39b (see FIG. 5). When the laser assembly 4 is pointed at the response unit, the lens 33 constitutes an imaging optics that images the response unit on the detector 39b and receives the signal from the light emitter 145.
[0072]
FIG. 11 shows a third embodiment of the present invention. Here, one or more ultrasonic transmitters 245 and ultrasonic receivers 246 are used between the inquiry unit and the response unit.
[0073]
When the response unit receives the inquiry signal, it activates the ultrasonic transmitter 245 for the transmission of the response signal, for example with a pulse modulation of 40 kHz. The ultrasonic transmitter 245 is disposed at an arbitrary part of the response unit.
[0074]
The ultrasonic receiver 244 preferably has anisotropic sensitivity and may be disposed on the laser assembly 4 instead of the antenna 26. It receives and demodulates the signal generated by the ultrasonic output 245 of the response unit.
[0075]
In the embodiment of FIGS. 10 and 11, the response signal is also transmitted at the carrier frequency. In the embodiment of FIG. 10, this carrier frequency can be the frequency of periodic modulation of separate pulses of the light emitter 145. In the embodiment of FIG. 11, this carrier frequency can be the frequency of the ultrasound signal output by the ultrasound transmitter 245. The desired carrier frequency is determined by the optical receiver 144 or the ultrasonic receiver 244 before outputting the inquiry signal. After that, as described in the first embodiment, the frequency code of the inquiry signal is used for the response unit. Sent. Appropriate filters are provided to the optical receiver 144 and the ultrasonic receiver 244 of the inquiry unit to selectively receive a response signal at a given carrier frequency. This also prevents interference in simultaneous communication operations.
[Brief description of the drawings]
FIG. 1 is a view showing a soldier equipped with an IFF / simulation apparatus according to an embodiment of the present invention.
2 is a rear view of the laser assembly attached to the rifle of FIG. 1. FIG.
FIG. 3 is a side view of the laser assembly.
FIG. 4 is a top view of the laser assembly.
5 is a cross-sectional view taken along line VV in FIG.
FIG. 6 is a block diagram of the laser assembly according to the first embodiment of the present invention.
FIG. 7 is a flowchart showing an inquiry operation.
FIG. 8 is a flowchart of a response operation.
FIG. 9 shows a possible LCD display of the device.
FIG. 10 is a block diagram of a laser assembly according to a second embodiment of the present invention.
FIG. 11 is a block diagram of a laser assembly according to a third embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Master control unit, 2 ... Arm harness, 3 ... Helmet harness, 4 ... Laser assembly, 5 ... Detector, 8 ... Housing bottom part, 9 ... Housing cover part, 10 ... Clamp, 11 ... Lever, 12th 1 part, 13 ... first part, 14 ... hinge, 16A ... active on position, 30 ... laser diode, 31-33 ... lens, 34 ... holographic diffraction grating, 39A ... beam separator, 39C ... plate, 39B ... Detector 40 ... Display 42 ... Control circuit 44 ... RF transceiver 45 ... Laser modulator / driver 46 ... Local communication port 50 ... Control circuit 144 ... Receiver 146 ... Light emitter 244 ... Ultrasonic receiver, 246 ... Ultrasonic transmitter.

Claims (27)

In a combat communication device including an inquiry unit and a response unit,
Each of the inquiry units
A laser irradiator that emits an inquiry beam including inquiry data;
A modulator that encodes the inquiry data in the inquiry beam together with a frequency code;
A signal receiver for receiving a response signal from the response unit, wherein the signal receiver is adjusted to determine a frequency not currently used to generate the frequency code ;
A holder for mounting the laser irradiator on a firearm;
A trigger for operating the laser irradiator, the trigger mounted on the holder;
The enemy-friend-indicator that reacts to the response signal ,
Each of the response units
At least one detector for receiving an inquiry beam output from the inquiry unit;
At least one demodulator for demodulating the inquiry data;
A signal transmitter having a selectable carrier frequency and generating the response signal at the carrier frequency;
Means for delaying the generation of the response signal by a random time after receiving the inquiry beam, whether the carrier frequency is actually empty before the signal transmitter generates the response signal at the carrier frequency; Means for delaying the generation of the response signal by another random time if it is not available;
With
The combat communication apparatus, wherein the carrier frequency of the response signal is set by a frequency code in the inquiry data of the inquiry beam. The trigger is substantially composed of a lever having an on position above the off position substantially lower, the lever is characterized in that it consists of two parts connected by a hinge, to claim 1 The combat communication device described.   2. The combat communication apparatus according to claim 1, wherein the laser irradiator includes a diverging optical element that selects a divergence of the inquiry beam. 4. The combat communication apparatus according to claim 3 , wherein the diverging optical element is composed of a holographic plate. 5. The combat communication device according to claim 4 , wherein the diverging optical element includes a movable holder capable of selectively separating the diverging optical element from the inquiry beam.   A plurality of harness sets, each of which has one of the response units, and at least a part of the harness set includes one of the inquiry unit and one of the laser irradiators, The combat communication device according to claim 1. The combat communication device according to claim 6 , wherein each of the harness sets includes a plurality of the detectors, and the response signal includes information on the detectors activated by the inquiry beam. 8. Combat communication device according to claim 7 , characterized in that each of the inquiry units comprises a display device which displays which of the detectors of the harness is activated by the inquiry signal.   The combat communication apparatus according to claim 1, wherein the laser irradiator is infrared laser irradiation. The combat communication apparatus according to claim 9 , wherein the laser irradiator irradiates light with a wavelength smaller than 2000 nm. The combat communication apparatus according to claim 10 , wherein the laser irradiator emits light at a wavelength between 780 nm and 905 nm.   The combat communication apparatus according to claim 1, wherein the laser irradiator is a continuous wave diode laser operating by pulse code modulation.   The combat communication device according to claim 1, wherein the laser irradiator and the signal receiver are arranged in a common housing.   The combat communication apparatus according to claim 1, wherein the signal transmitter is a radio transmitter, the signal receiver is a radio receiver, and the response signal is a radio signal of the carrier frequency.   The combat communication device according to claim 1, wherein the signal transmitter is a light source, the signal receiver is a photodetector, and the response signal is an optical signal modulated at the carrier frequency. .   The combat communication device according to claim 1, wherein the signal transmitter is an ultrasonic source, the signal receiver is an ultrasonic detector, and the response signal is an ultrasonic wave of the carrier frequency. .   The combat communication device of claim 1, further comprising means for attaching at least one of said detectors to a soldier's arm. The signal receiver of the inquiry unit is an ultrasonic receiver that receives an ultrasonic response signal,
Signal transmit unit of the response unit is an ultrasonic transmitter for generating a response signal in response to the inquiry beam, combat communication apparatus according to claim 1, wherein a. The signal receiver of the inquiry unit is a light receiver,
Signal transmit unit of the response unit is responsive to the inquiry beam generates a response signal, a light source for outputting the spread, Combat communication apparatus according to claim 1, wherein. The combat communication apparatus according to claim 19 , wherein the inquiry unit includes an imaging optical element arranged in a line with respect to the laser irradiator that images the response unit on the light receiver. . In the combat communication method between the inquiry unit and the response unit,
Determining an empty carrier frequency in the inquiry unit;
Transmitting an optical query beam from the query unit to the response unit, wherein the query beam is modulated to encode the vacant carrier frequency;
Receiving the inquiry beam at the response unit, demodulating the inquiry beam to determine an empty carrier frequency in the inquiry beam;
Generating a response signal at the response unit at the empty carrier frequency in response to the inquiry beam;
Delaying the generation of the response signal by a random time after receiving the inquiry beam, wherein the empty carrier frequency is actually generated before the response signal is generated at the empty carrier frequency in the step of generating the response signal. A method for combat communication, comprising the step of: checking whether the signal is vacant, and delaying generation of the response signal by another random time if it is not vacant . The combat communication method according to claim 21 , further comprising a step of adding an identification code for identifying the response unit to the response signal. The combat communication method according to claim 21 , wherein the response signal is a radio signal. The combat communication method according to claim 21 , wherein the response signal is an ultrasonic signal. The combat communication method according to claim 21 , wherein the response signal is an optical signal. A housing in which the laser irradiator is disposed to output a light beam along a longitudinal direction, the housing being part of an assembly attached to a firearm;
And means for attaching said housing to said firearm at the bottom side of the housing,
A lever switch that has an off position that is adjacent to the lateral side or upper side of the housing and an on position that extends downward from the housing and is pivotally connected to the housing. The combat communication device according to claim 1, wherein:   The lever includes a first part pivotally connected to the housing and a second part pivotally connected to the first part. In the on position, the second part is 27. The combat communication device according to claim 26, wherein the combat communication device is capable of turning to increase the length of the lever.

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