阅读说明：本技术 可见光模拟射击对战方法和系统 (Visible light simulated shooting fighting method and system ) 是由 郭文秀 宋健 蒋小涛 于 2021-01-07 设计创作，主要内容包括：本发明公开了一种可见光模拟射击对战方法和系统,该可见光模拟射击对战方法,其包括如下步骤：发射第一信号光,第一信号光为预设频率,其中,第一信号光为可见光；接收第一信号光后,经散射后传输到至少一个光源处理器中；对第一信号光进行转换并优化处理得到电信号；根据电信号检测并计算得到第一信号光对应的光照强度,并显示检测结果。本发明采用的是可见光源发射和接收,使得模拟射击对战可以看到子弹轨迹或弹着点,且有效避免传统红外激光的反射接收缺陷,使得射击对战可以做到精确瞄准,增强了对战体验。(The invention discloses a visible light simulation shooting fight method and a system, wherein the visible light simulation shooting fight method comprises the following steps: emitting first signal light with a preset frequency, wherein the first signal light is visible light; after receiving the first signal light, transmitting the first signal light to at least one light source processor after scattering; converting and optimizing the first signal light to obtain an electric signal; and detecting and calculating according to the electric signal to obtain the illumination intensity corresponding to the first signal light, and displaying the detection result. The invention adopts visible light source emission and reception, so that the bullet track or the impact point can be seen in the simulated shooting battle, and the defect of reflection and reception of the traditional infrared laser is effectively avoided, so that the shooting battle can be accurately aimed, and the fighting experience is enhanced.)

1. A visible light simulation shooting and fighting method is characterized by comprising the following steps:

emitting first signal light, wherein the first signal light is at a preset frequency, and the first signal light is visible light;

after receiving the first signal light, scattering the first signal light and transmitting the first signal light to at least one light source processor;

converting the first signal and performing optical optimization processing to obtain an electric signal;

and detecting and calculating according to the electric signal to obtain the illumination intensity corresponding to the first signal light, and displaying the detection result.

2. The method of claim 1, wherein the step of optimizing the first signal light to obtain an electrical signal comprises:

converting an optical signal of the first signal light into a first electrical signal;

isolating the first electric signal, and filtering out a direct current part and an interference signal to obtain a second electric signal;

amplifying the second electric signals, and filtering electric signals in the second electric signals, wherein the electric signals are lower than the preset frequency and higher than the preset frequency, so as to obtain third electric signals;

and converting the third electric signal and calculating to obtain the illumination intensity corresponding to the first signal light.

3. The method of claim 1, wherein the step of receiving the first signal light employs a light source and a light receiver; wherein

The light source light equalizing receiver is made of transparent materials;

the light source processor is distributed on the scattering surface of the light source and light receiver.

4. The visible light simulation shooting battle method as claimed in claim 1, wherein the predetermined frequency is 1KHz to 1 MHz.

5. The visible light simulated shooting match method of claim 1, wherein said visible light simulated shooting match method further comprises:

and simulating the sound intensity corresponding to the first signal light.

6. The visible light simulated shooting match method of claim 1, wherein said visible light simulated shooting match method further comprises:

and simulating the recoil strength corresponding to the first signal light.

7. A visible light simulated shooting battle system, characterized in that the visible light simulated shooting battle system comprises:

a light source transmitter configured to transmit first signal light; the first signal light is of a preset frequency, and the first signal light is visible light;

a light source light equalizing receiver configured to receive the first signal light;

the light source processor is configured to convert and optimally process the first signal light after scattering transmission to obtain an electric signal, and the illumination intensity corresponding to the first signal light is obtained through detection and calculation according to the electric signal; and

a display configured to display the illumination intensity.

8. The visible light analog shooting combat system of claim 7, wherein the light source processor comprises:

a photoelectric conversion module configured to convert an optical signal of the first signal light into a first electrical signal;

the isolation processing module is configured to isolate the first electric signal and filter out a direct current part and a first interference signal to obtain a second electric signal;

the amplifying and filtering module is configured to amplify the second electrical signals and filter electrical signals in the second electrical signals, wherein the electrical signals are lower than the preset frequency and higher than the preset frequency, so that third electrical signals are obtained; and

and the signal conversion module is configured to convert the third electrical signal and calculate to obtain the illumination intensity corresponding to the first signal light.

9. The visible light analog shooting battle system of claim 7,

the light source light equalizing receiver is made of transparent materials;

the light source processor is distributed on the scattering surface of the light source and light receiver.

10. The visible light analog shooting battle system as claimed in claim 7, wherein the predetermined frequency is 1KHz to 1 MHz.

11. The visible light analog shooting match system of claim 7, wherein the visible light analog shooting match system further comprises:

and the audio module is configured to simulate the sound intensity corresponding to the first signal light.

12. The visible light analog shooting match system of claim 7, wherein the visible light analog shooting match system further comprises:

a feedback module configured to simulate a recoil strength corresponding to the first signal light.

Technical Field

The invention relates to the technical field of shooting training, in particular to a visible light simulation shooting fighting method and a visible light simulation shooting fighting system.

Background

The shooting of the real person has extensive demand for shooting, not only needs on military exercises and countermeasures, but also is a movement which is popular among ordinary people, integrates sports and games, is nervous and stimulating and is beneficial to physical and mental health.

At present, water bombs are used for shooting, the shooting sense is real, and therefore the water bombs are popular among people, but a plurality of defects exist: firstly, the effective range of the water bomb is only dozens of meters due to the limitation of kinetic energy, the combat distance is greatly limited, and the enemy cannot hit the water bomb and cannot perform technical and tactical activities when seeing the water bomb; secondly, water bomb battles are often in the environment with obstacles, effective means for solving the target behind the obstacles are lacked, and some 'rules' are artificially defined for the purpose of so-called 'fair competition' and for enabling experience feeling. Meanwhile, the water bullet shooting launches a real bullet with certain kinetic energy, which can hurt the body of personnel without protective equipment in a short distance, so the water bullet competition must be carried out in a professional field in a limited way.

Among the prior art, the fight of a laser (radium-shine) class is equipped in addition, does not launch the bullet in kind, has that the range is far away, the bullet quantity is unrestricted, need not to wear the protective equipment, equips and is difficult to damage, the advantages such as the array is judged clearly, but the existing various laser (radium-shine) class fight products in the longitudinal view market, whether wired connection or wireless control, all be based on infrared ray, adopt the technique of infrared coding transmission and receipt, 2 very big drawbacks of this type of product: first, because infrared laser is used, the human eye cannot see any bullet track or impact point, and aiming shooting cannot be performed. Because the equipment assembly has deviation, even if the deviation is only a small angle, the target distance only exceeds a certain distance, and the target is very difficult to hit under the condition of no launcher; secondly, infrared laser fight equipment uses infrared coding transmission and receiving technology, and infrared transmission and receiving have very serious reflection receiving problem. If the target is hit in the environment with the reflector, the target can be hit by casual shooting, even if the target is completely hidden behind various obstacles, the target can be hit by reflected light, and the fight is completely distorted.

Disclosure of Invention

In view of the above situation, the present invention provides a method and system for visible light simulation shooting battle with simple implementation, low complexity and obvious practical application value to solve the above problems.

The invention provides a visible light simulation shooting fight method, which comprises the following steps:

emitting first signal light, wherein the first signal light is at a preset frequency, and the first signal light is visible light;

after receiving the first signal light, scattering the first signal light and transmitting the first signal light to at least one light source processor;

converting the first signal light and optimizing to obtain an electric signal;

and detecting and calculating according to the electric signal to obtain the illumination intensity corresponding to the first signal light, and displaying the detection result.

Optionally, the step of converting and optimizing the first signal light to obtain an electrical signal includes:

converting an optical signal of the first signal light into a first electrical signal;

isolating the first electric signal, and filtering out a direct current part and an interference signal to obtain a second electric signal;

amplifying the second electric signals, and filtering electric signals in the second electric signals, wherein the electric signals are lower than the preset frequency and higher than the preset frequency, so as to obtain third electric signals;

and converting the third electric signal and calculating to obtain the illumination intensity corresponding to the first signal light.

Optionally, the step of receiving the first signal light employs a light source and a light receiver; wherein

The light source light equalizing receiver is made of transparent materials;

the light source processor is distributed on the scattering receiving surface of the light source uniform light receiver.

Optionally, the preset frequency is 1KHz to 1 MHz.

Optionally, the visible light simulated shooting battle method further comprises:

and simulating the sound intensity corresponding to the first signal light.

Optionally, the visible light simulated shooting battle method further comprises:

and simulating the recoil strength corresponding to the first signal light.

The invention also provides a visible light simulation shooting and fighting system, which comprises:

a light source transmitter configured to transmit first signal light; the first signal light is of a preset frequency, and the first signal light is visible light;

a light source light equalizing receiver configured to receive the first signal light;

the light source processor is configured to convert and optimally process the first signal light after scattering transmission to obtain an electric signal, and the illumination intensity corresponding to the first signal light is obtained through detection and calculation according to the electric signal; and

a display configured to display the illumination intensity.

Optionally, the light source processor comprises:

a photoelectric conversion module configured to convert an optical signal of the first signal light into a first electrical signal;

the isolation processing module is configured to isolate the first electric signal and filter out a direct current part and a first interference signal to obtain a second electric signal;

the amplifying and filtering module is configured to amplify the second electrical signals and filter electrical signals in the second electrical signals, wherein the electrical signals are lower than the preset frequency and higher than the preset frequency, so that third electrical signals are obtained; and

and the signal conversion module is configured to convert the third electrical signal and calculate to obtain the illumination intensity corresponding to the first signal light.

Optionally, the light source and the light receiver are made of transparent materials;

the light source processor is distributed on the scattering receiving surface of the light source uniform light receiver.

Optionally, the preset frequency is 1KHz to 1 MHz.

Optionally, the visible light simulated shooting battle system further comprises:

and the audio module is configured to simulate the sound intensity corresponding to the first signal light.

Optionally, the visible light simulated shooting battle system further comprises:

a feedback module configured to simulate a recoil strength corresponding to the first signal light.

The light source uniform light receiver provided by the invention can be made into a helmet and a breastplate or a vest shape to be worn on a person, visible light sources directly projected on the light source uniform light receiver are scattered and then emitted to the light source processor, and weak visible light sources reflected from the light source uniform light receiver can be effectively filtered, so that misjudgment of the whole system is avoided, and the reality of simulated fight is improved.

Furthermore, in order to pursue the requirement of long-distance shooting, the light source needs to adopt visible laser with good directivity, the transmission of a communication command can be completed only by using the traditional encoding and decoding technology and requiring the laser conduction time to be more than 100 milliseconds, the transmission power is high, and the retina of the eye is easily damaged, however, the visible light simulation shooting fight method and the system provided by the invention can be completed in less than 1 millisecond by only identifying the frequency information in the visible light, the transmission energy is small, the retina is not damaged, and the simulation fight using the visible light source becomes very safe.

The visible light source is adopted for transmitting and receiving, so that a bullet track or an impact point can be seen in the simulated shooting battle, the defect of reflection and receiving of the traditional infrared laser is effectively overcome, the shooting battle can be accurately aimed, and the fighting experience is enhanced; the invention can be applied to various weapon system simulations of different range and different damage, including pistol, automatic rifle, sniper gun, shotgun and sheet-killed grenade, and can be applied to multi-scene simulated shooting confrontation exercise.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a block diagram of a visible light simulated shooting combat system provided in accordance with an embodiment of the present invention;

FIG. 2 is a schematic block diagram of the light source emitter of FIG. 1;

FIG. 3 is a schematic diagram of the light source-receiver of FIG. 1;

FIG. 4 is a block diagram of the light source-receiver of FIG. 1;

FIG. 5 is a circuit diagram of the light source processor of FIG. 1;

FIG. 6 is a flow chart illustrating a method for simulating shooting and fighting with visible light in one embodiment of the present invention;

fig. 7 is a schematic flow chart of processing the first signal light according to an embodiment of the present invention.

Description of the main elements

Visible light simulated shooting and fighting system 10

Light source emitter 100

Light source uniform light receiver 200

Light source processor 300

Photoelectric conversion module 310

Voltage Source VCC

First voltage dividing resistor R1

Second voltage-dividing resistor R2

Photosensitive sensor S

Isolation processing module 320

Amplification filter module 330

First capacitor C1

Transistor amplifier circuit 332

Bandpass filter amplifier 334

Second capacitance C2

Specific frequency detection module 340

Specific frequency detector 341

Frequency parameter configuration module 342

Intensity detection module 350

Display 370

Processor 360

Second communication module 380

Light source driving module 110

Visible light source 120

First switching element SW1

Microprocessor 130

First pin P1

Second pin P2

Third pin P3

Fourth pin P4

Fifth pin P5

Second switching element SW2

Audio module 140

Feedback module 150

First communication module 160

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 1 is a block diagram of a visible light analog shooting and fighting system 10 according to an embodiment of the present invention. The visible light analog shooting fighting system 10 is used for simulating a laser type fighting device in shooting training. Specifically, the visible light analog shooting fight system 10 generally includes a light source transmitter 100, a light source averaging light receiver 200, and a light source processor 300. Wherein the light source emitter 100 is configured to emit visible light. The light source/uniform light receiver 200 is used to expand and uniformly disperse the area of the visible light, so that the light projected onto the light source processor 300 is uniformly distributed.

The light source transmitter 100 is configured to transmit first signal light. The light source emitter 100 emits light visible to human eyes after being modulated by specific frequency, and the light source emitter 100 can be applied to various simulated fighting weapon emitting systems. If long-distance shooting is required, the light source transmitter 100 adopts visible laser as a light source, if a short-distance shotgun is simulated, the light source transmitter 100 can use an LED laser lamp with a certain directional constraint, and if a short-distance destructive weapon is simulated, such as a grenade, the light source transmitter 100 uses an LED transmitting laser light source array capable of forming full-directional irradiation. Different weapon types modulate the light using different preset frequencies so that the light source processor 300 can distinguish.

The first signal light emitted by the light source emitter 100 is at a predetermined frequency, and further, the first signal light is visible light. Optionally, the preset frequency is 1KHz to 1 MHz.

In at least one embodiment of the present invention, the first signal light adopts visible light with a preset frequency, and modulates periodic signals with the preset frequency on the visible light without using any encoding process, and the system for receiving laser only needs to identify signals with the preset frequency (i.e. the visible light with the preset frequency) without performing decoding process, so that transmission and reception can be completed in less than 1 millisecond at the fastest speed, and the efficiency is much higher than that of the infrared encoding and decoding technology which needs more than 100 milliseconds.

Referring to fig. 2, the light source transmitter 100 includes a light source driving module 110, a visible light source 120, a first switching element SW1, a microprocessor 130, a second switching element SW2, an audio module 140, a feedback module 150, and a first communication module 160.

The light source driving module 110 is electrically connected to the visible light source 120, and is configured to provide a driving current to the visible light source 120. In at least one embodiment of the present invention, the light source driving module 110 is a dc driving circuit.

One end of the visible light source 120 is electrically connected to the light source driving module 110, and the other end is grounded through the first switch element SW 1. When the first switching element SW1 is turned on, the visible light source 120 emits visible light flickering at the preset frequency according to the driving current of the light source driving module 110. At the preset frequency, the flicker of the visible light source 120 cannot be sensed by human eyes, thereby simulating the emission of a visible light bomb.

The control terminal of the first switch element SW1 is electrically connected to the microprocessor 130, the first connection terminal of the first switch element SW1 is electrically connected to the visible light source 120, and the second connection terminal of the first switch element SW1 is grounded. In at least one embodiment of the present invention, the first switch element SW1 is a P-type field effect transistor (MOSFET).

The microprocessor 130 has a first pin P1. In at least one embodiment of the present invention, the first pin P1 is a General purpose input/output (GPIO) pin. The first pin P1 of the microprocessor 130 is electrically connected to the control terminal of the first switch element SW 1. The first pin P1 of the microprocessor 130 outputs a control signal to control the first switch element SW1 to be turned on and off. The control signal may be a signal varying at a predetermined period. In at least one embodiment of the present invention, the control signal may be a square wave signal. In other embodiments, the control signal may also be a sinusoidal signal or other periodically varying signal. The control signal controls the first switch element SW1 to be turned on periodically, so that the visible light emitted by the visible light source 120 flickers at the preset frequency. The period of the control signal is associated with the preset frequency. In at least one embodiment of the present invention, a period of the control signal may be equal to the preset frequency corresponding to the visible light source 120. When the control signal is at a low level, the first switching element SW1 is turned on, and the visible light source 120 emits visible light having the preset frequency according to the driving current of the light source driving module 110. When the control signal is at a high level, the first switching element SW1 is turned off, and the visible light source 120 does not emit light.

The second switch element SW2 is electrically connected to the second pin P2 of the microprocessor 130. The second switching element SW2 is used to control the microprocessor 130 to generate the control signal to the first switching element SW1 through the first pin P1 when turned on. In at least one embodiment of the present invention, the second switching element SW2 is a trigger, and the second switching element SW2 is turned on when the trigger is triggered or pressed.

The audio module 140 is electrically connected to the third pin P3 of the microprocessor 130. The audio module 140 is configured to simulate a sound when the first signal light is emitted. When the second switch element SW2 is turned on, the corresponding sound effect is output. In at least one embodiment of the present invention, a variety of different sound effects may be stored within the audio module 140. The plurality of different sound effects are used for simulating the sound corresponding to different bullet shots or explosions. While the light source emitter 100 emits a simulated light bullet, the audio module 140 simulates the sound of a shot or explosion of a different bullet, simulating the vibration sound at the time of emission. Participants who participate in shooting battles feel more realistic.

The feedback module 150 is electrically connected to the fourth pin P4 of the microprocessor 130. The feedback module 150 is configured to simulate feedback generated when the first signal light is emitted. The feedback module 150 generates feedback when the second switching element SW2 is turned on. In at least one embodiment of the present invention, the feedback may be vibration. In other embodiments, the feedback may also be other feedback effects such as a light effect or a smoke taste. In at least one embodiment of the present invention, the feedback module 150 may be an eccentric rotor motor or a transverse linear motor with relatively high power.

The first communication module 160 is electrically connected to the fifth pin P5 of the microprocessor 130. The first communication module 160 may communicate with other modules (including but not limited to the light source emitter 100 or the light source processor 300) in a pre-matched manner. In at least one embodiment of the present invention, the first communication module 160 may be a wide area network communication technology, such as, but not limited to, 2.4G, 3G, 4G, 5G, and the like. In other embodiments, the first communication module 160 may also be a local area network communication technology, such as Near Field Communication (NFC), WIFI communication module, bluetooth, etc., but is not limited thereto. The pre-matching is performed by setting other modules (for example, the first communication module 160 in the other light source transmitters 100 or the second communication module 380 in the light source processor 300) to adopt the same radio frequency ID and device ID as the first communication module 160 and operate in the same radio frequency sub-band, so that the first communication module 160 and the other modules form a communication group for communicating with each other.

The light source emitter 100, the light source uniform light receiver 200 and the light source processor 300 form the whole visible light simulated shooting and fighting system 10, and the light source emitter 100 and the light source uniform light receiver 200 serve as a user, so that subsequent data analysis and result display are facilitated. According to whether the first signal light emitted by the light source emitter 100 hits the target, it is determined to execute a corresponding display result, such as "gun locking" or "hit prompt or penalty".

Referring to fig. 3 and 4, the light source-uniform light receiver 200 further defines a receiving surface 201 and a scattering surface 203. The receiving surface 201 is a surface disposed opposite to the light source emitter 100. The scattering surface 203 is a surface disposed opposite the light source processor 300. The first signal light emitted by the light source emitter 100 enters the light source uniform light receiver 200 from the receiving surface 201, is scattered by the light source uniform light receiver 200, then exits from the scattering surface 20, and is provided to at least one light source processor 300. As shown in fig. 2, fig. 2 is a schematic diagram of the light source-even light receiver 200 according to an embodiment of the present invention. The light source and the light receiver 200 can be made into different shapes according to different targets and positions, such as head-wearing type, chest nails, back nails or arms, leg protectors and the like for human bodies, and targets with various shapes or other large targets can be also made.

The light source light equalizing receiver 200 is made of a transparent material, and a certain proportion of toner and organic silicon diffusion powder are further doped in the light source light equalizing receiver 200. The toner is a common name for pigments and includes organic pigments, inorganic pigments, solvent dyes, fluorescent pigments, pearlescent pigments, fluorescent brighteners, and the like.

The light source processor 300 is distributed on the scattering surface of the light source and light receiver 200. When the first signal light irradiates the receiving surface of the light source/uniform light receiver 200, the light energy is projected into the light source/uniform light receiver 200 and is dispersed into a diffused state, thereby ensuring that a small part of visible light energy falls on at least one light source processor 300 arranged on the other side of the light source/uniform light receiver 200.

The light source processor 300 is arranged on the scattering surface 203 of the light source uniform light receiver 200, the first signal light enters the light source processor 300 after being scattered, the first signal light can be ensured not to be leaked by using less light source processors 300, a larger effective receiving area is achieved, meanwhile, misjudgment caused by reflection receiving is reduced, and the hit part of a human body can be simulated as truly as possible in the process of simulating opponent combat.

However, since the light source-equalizing receiver 200 is transparent, the light source processor 300 will respond to all visible lights, and the intensity of the ambient light (interference light) incident on the light source-equalizing receiver 200 will even far exceed the intensity of the first signal light, so that it is required to effectively identify the effective visible light source from the strong interference background light quickly and accurately.

Further, the light source and the light receiver 200 can be deployed at multiple positions on the human body at the same time; when different parts receive the visible light with the same preset frequency, the given damage values are judged to be different.

The light source processor 300 is configured to convert and optimally process the first signal light after scattering transmission into an electrical signal. Referring to fig. 5, fig. 5 is a circuit diagram of the light source processor 300 in fig. 1. The light source processor 300 includes a photoelectric conversion module 310, an isolation processing module 320, an amplification filtering module 330, a specific frequency detection module 340, a light intensity detection module 350, a processor 360, a display 370, and a second communication module 380.

The photoelectric conversion module 310 is disposed opposite to the scattering surface 203 of the light source-uniform light receiver 200. The photoelectric conversion module 310 is configured to convert an optical signal of the first signal light into a first electrical signal. The photoelectric conversion module 310 includes a voltage source VCC, a first voltage dividing resistor R1, a second voltage dividing resistor R2, and a plurality of photosensors S. The photosensitive sensors S form an array structure and are connected in parallel. In at least one embodiment of the present invention, a plurality of the photosensitive sensors S are disposed on the same line. In other embodiments, the photosensitive sensors S may also be arranged in a matrix. One end of the first voltage dividing resistor R1 is electrically connected to the voltage source VCC, and the other end is electrically connected to the first end of each of the photosensors S. One end of the second voltage-dividing resistor R2 is electrically connected to the second end of each of the photosensors S, and the other end is grounded. Referring to fig. 4, in at least one embodiment of the present invention, the photoelectric conversion module 310 includes a photosensor array formed by a plurality of photosensors S, and the photosensors S perform photoelectric signal conversion to convert the optical signal of the first signal light into a first electrical signal. The photosensor S may be, but is not limited to, a photodiode or a silicon photo cell. The plurality of photosensitive sensors S are all connected in parallel and work in a reverse bias state, when visible light such as first signal light enters the photosensitive sensors S, the positive electrodes of the photosensitive sensors S generate voltage which changes along with light intensity changes, and photoelectric conversion is achieved.

The isolation processing module 320 is electrically connected to the photoelectric conversion module 310. The isolation processing module 320 is configured to isolate the first electrical signal, and sequentially filter out a direct current portion and an interference signal to obtain a second electrical signal. In one embodiment, the isolation processing module 320 includes a first capacitor C1. One end of the first capacitor C1 is electrically connected to the anodes of all the photosensors S, and the other end is electrically connected to the amplification and filtering module 330. The voltage generated by the photosensitive sensor S is isolated through the first capacitor C1, and after the direct-current component is filtered and removed, part of background light which is not rapidly converted can be effectively removed. Further, the voltage signal (i.e., the second electrical signal) after filtering the background light is very small, and may contain other signals with various frequency interference sources in addition to the signal with the preset frequency emitted by the light source emitter 100.

The amplification and filtration module 330 is electrically connected to the isolation processing module 320. The amplifying and filtering module 330 is configured to amplify the second electrical signal and filter electrical signals of the second electrical signal that are lower than the predetermined frequency and higher than the predetermined frequency to obtain a third electrical signal. The amplifying and filtering module 330 includes a transistor amplifying circuit 332, a band-pass filter amplifier 334 and a second capacitor C2.

The transistor amplifier circuit 332 is electrically connected between the other end of the first capacitor C1 and the band pass filter amplifier 334, and is configured to amplify the second electrical signal isolated by the isolation processing module 320, so as to increase the amplitude of the second electrical signal.

The band-pass filter amplifier 334 is electrically connected between the transistor amplifier circuit 332 and the second capacitor C2. The band pass filter amplifier 334 is configured as a two-stage band pass filter amplifier by using an operational amplifier (not shown) according to a preset frequency range of the light source transmitter 100. The band-pass filter amplifier 334 further amplifies the amplified second electrical signal output by the transistor amplifier circuit 332 and filters out low-frequency and high-frequency components that are not within a required range, that is, filters electrical signals in the second electrical signal that are lower than a preset frequency and higher than the preset frequency, and further obtains a third electrical signal.

One end of the second capacitor C2 is electrically connected to the band pass filter amplifier 334, and the other end is electrically connected to the specific frequency detection modules 340. In a specific embodiment, the second capacitor C2 further isolates the dc component of the third electrical signal filtered by the bandpass filter amplifier 334.

The specific frequency detection module 340 is electrically connected between the amplification and filtering module 330 and the processor 360. The specific frequency detection module 340 is configured to detect a plurality of specific frequencies in the third electrical signal, and generate at least one effective signal to the processor 360 when at least one of the specific frequencies is detected. The specific frequency detection module 340 includes a plurality of specific frequency detectors 341. A plurality of the specific frequency detectors 341 are connected in parallel between the other end of the second capacitor C2 and the processor 360. The specific frequency detectors 341 correspond to one specific frequency and are different from each other. Each of the specific frequency detectors 341 is configured to perform specific frequency detection on the third electrical signal filtered and outputted by the second capacitor C2. When any one of the specific frequency detectors 341 detects the corresponding specific frequency, the specific frequency detector 341 outputs a valid signal to the corresponding input pin of the processor 360.

The specific frequency detection module 340 further comprises a plurality of frequency parameter configuration modules 342. Each of the frequency parameter configuration modules 342 is electrically connected to one of the specific frequency detectors 341, and is configured to set a specific frequency corresponding to the specific frequency detector 341.

The specific frequency detection module 340 can identify and identify a plurality of specific frequencies simultaneously as required, and can complete detection within 3 signal periods of the specific frequency signal, thereby realizing rapid identification of a plurality of frequency information. In general, it can be understood that the light source emitter 100 can modulate a plurality of periodic signals with predetermined frequencies on the first signal light, and the light source processor 300 can simultaneously detect and identify a plurality of specific frequencies of a third electrical signal converted from the first signal light carrying the plurality of periodic signals with predetermined frequencies, and can be used for simulating different weapons in shooting battle to give damage values corresponding to the weapons.

The light intensity detecting module 350 is electrically connected between the amplifying and filtering module 330 and the processor 360. The light intensity detecting module 350 is configured to convert the third electrical signal and calculate the illumination intensity corresponding to the first signal light. In at least one embodiment of the present invention, the light intensity detecting module 350 performs low-pass filtering on the third electrical signal, converts the third electrical signal into an effective direct current component, then calculates an illumination intensity through AD conversion, and calculates an average value of a plurality of illumination intensities as the illumination intensity corresponding to the first signal light. That is to say, after the processing, the light intensity detection module 350 only performs light intensity detection on the first signal light carrying the preset frequency information, and performs effective filtering on other ambient light or an interference light source not containing the preset frequency information, so that the system can be well adapted to a weak light environment or a strong light environment. The light intensity detection module 350 may, but is not limited to, use an illumination intensity detector.

The processor 360 is electrically connected to the specific frequency detection module 340 and the light intensity detection module 350. The processor 360 identifies a preset frequency of the first signal light of the light source transmitter 100 according to the effective signal output by the specific frequency detection module 340, and then determines the category of the light source transmitter 100. In at least one embodiment of the present invention, the category of the light source emitter 100 may be a weapon category. In other embodiments, the category of the light source emitter 100 may also be a weapon injury maximum. The processor 360 identifies whether the first signal light emitted by the light source emitter 100 is in an effective killing distance according to the illumination intensity output by the light intensity detection module 350. The processor 360 can identify the distance of the light source emitter 100 by the illumination intensity identified by the light intensity detection module 350, so as to adjust the damage value received by the simulated pair in wartime. The processor 360 further calculates the identified category and light intensity value of the light source transmitter 100 and the corresponding installation position of the light source-uniform light receiver 200 on the human body to obtain the actual injury value that the hit target should suffer.

The display 370 is electrically connected to the processor 360. The display 370 is used for displaying the illumination intensity. The display 370 may be a mobile phone, iPad or other liquid crystal display. The display 370 correspondingly displays the illumination intensity corresponding to the first signal light, and further displays the category and the illumination intensity of the light source transmitter 100, and the installation position of the light source-uniform light receiver 200 on the human body to indicate the actual damage to the hit target.

The second communication module 380 is electrically connected to the processor 360. The second communication module 380 is used to establish communication with the first communication module 160 in the light source emitter 100.

The invention also provides a visible light simulation shooting and fighting method, and fig. 6 is a flow schematic diagram of the visible light simulation shooting and fighting method.

The visible light simulation shooting fight method specifically comprises the following steps:

step S510, emitting the first signal light.

Specifically, the light source transmitter 100 is configured to transmit first signal light. The light source emitter 100 emits light visible to human eyes after being modulated by specific frequency, and the light source emitter 100 can be applied to various simulated fighting weapon emitting systems. If long-distance shooting is needed, visible laser is used as a light source, if a short-distance shotgun is simulated, an LED laser lamp with certain direction constraint can be used, and if a weapon for killing in a short-distance range, such as a grenade, is to be simulated, an LED emitting laser light source array capable of forming omnidirectional radiation is used. Different weapon types modulate light using different specific frequencies so that the receiving light source processor 300 can distinguish.

The first signal light emitted by the light source emitter 100 is at a predetermined frequency, and further, the first signal light is visible light. Optionally, the preset frequency is 1KHz to 1 MHz. The light source emitter 100 emits a light source visible to human eyes after being modulated by a preset frequency, and the light source emitter 100 can be applied to various simulated fighting weapon emitting systems. If long-distance shooting is required, the light source transmitter 100 adopts visible laser as a light source, if a short-distance shotgun is simulated, the light source transmitter 100 can use an LED laser lamp with a certain directional constraint, and if a short-distance destructive weapon is simulated, such as a grenade, the light source transmitter 100 uses an LED transmitting laser light source array capable of forming full-directional irradiation. Different weapon types modulate light using different specific frequencies so that the light source processor 300 can distinguish.

In at least one embodiment of the present invention, the first signal light is a visible light with a preset frequency, and modulates a periodic signal with the preset frequency on the visible light without using any encoding process, and the system for receiving laser only needs to identify a signal with a specific frequency without performing decoding process, so that transmission and reception can be completed in less than 1 millisecond at the fastest speed, and the efficiency is much higher than that of the infrared encoding and decoding technology which needs more than 100 milliseconds.

Step S520, after receiving the first signal light, the first signal light is scattered and transmitted to at least one light source processor 300.

Specifically, the light source/uniform light receiver 200 is configured to receive the first signal light, scatter the first signal light, and provide the scattered first signal light to the at least one light source processor 300. As shown in fig. 3, the light source/uniform light receiver 200 can be shaped differently according to the target and the location, such as head-worn, chest, back, arm, leg, etc. for human body, or targets of various shapes or other large targets.

Referring to fig. 4, the light source-uniform light receiver 200 further defines a receiving surface 201 and a scattering surface 203. The receiving surface 201 is a surface disposed opposite to the light source emitter 100. The scattering surface 203 is a surface disposed opposite the light source processor 300. The first signal light emitted by the light source emitter 100 enters the light source uniform light receiver 200 from the receiving surface 201, is scattered by the light source uniform light receiver 200, then exits from the scattering surface 20, and is provided to at least one light source processor 300.

The light source light equalizing receiver 200 is made of a transparent material, and a certain proportion of toner and organic silicon diffusion powder are further doped in the light source light equalizing receiver 200. The toner is a common name for pigments and includes organic pigments, inorganic pigments, solvent dyes, fluorescent pigments, pearlescent pigments, fluorescent brighteners, and the like.

The light source processor 300 is distributed on the scattering surface 203 of the light source and light receiver 200. When visible light irradiates the light source uniform light receiver 200, light energy is projected into the light source uniform light receiver 200 and is scattered into a diffused state, thereby ensuring that a small part of visible light energy falls on the light source processor 300 assembled on the other side of the light source uniform light receiver 200.

The light source processor 300 is arranged on the scattering surface 203 of the light source uniform light receiver 200, visible light enters the light source processor 300 after being scattered, the visible light can be ensured not to be leaked by using less light source processors 300, a larger effective receiving area is achieved, meanwhile, misjudgment caused by reflection receiving is reduced, and the hitting part of a human body can be simulated as truly as possible in the process of simulating a battle.

However, since the light source-uniform light receiver 200 is transparent, the light source processor 300 will respond to all visible light, and the intensity of the ambient light (interference light) incident on the light source-uniform light receiver 200 will even far exceed the emission intensity of the light source emitter 100, so that it is required to effectively identify the effective visible light source from the strong interference background light quickly and accurately.

Further, the light source and the light receiver 200 can be deployed at multiple positions on the human body at the same time; when different parts receive the visible light with the same preset frequency, the given damage values are judged to be different.

Step S530, the first signal light is converted and optimized to obtain an electrical signal.

The light source processor 300 is configured to process the first signal light after scattering transmission to obtain an electrical signal. The specific optimization process is described in detail below.

And step S540, detecting the electric signal to obtain the illumination intensity corresponding to the first signal light, and displaying the detection result.

The light intensity detection module 350 is configured to detect an illumination intensity of the first signal light. The light intensity detection module 350 may, but is not limited to, use an illumination intensity detector. The processor 360 identifies the type and the illumination intensity of the light source transmitter 100 and the corresponding installation position of the light source uniform light receiver 200 on the human body according to the third electrical signal to calculate the actual injury value that the hit target should receive.

The light intensity detection module 350 detects the light intensity of the light source carrying the preset frequency information, so that the system can identify the distance of the emitting light source, and the damage value received by the simulation in wartime is adjusted.

The human eye can not distinguish the difference between the visible light source modulated by the preset frequency and the ambient light, because all the visible light wave bands are visible light wave bands, the visible light containing the modulation of the preset frequency and the ambient light are irradiated on the light source uniform light receiver 200 and the light source processor 300 together, the light source processor 300 can selectively amplify the light signals needing to be processed, and can identify and distinguish the frequency information contained in the visible light through a plurality of detection circuits with different frequencies, and simultaneously measure the average intensity of the visible light after selective amplification to obtain the illumination intensity, so that the fighting system can judge which type of weapon the target is hit, and the shooting weapon is far or near the target when hit, thereby giving a corresponding injury value.

As shown in fig. 7, fig. 7 is a schematic flow chart of processing the first signal light to obtain the electrical signal according to an embodiment of the present invention. The method for processing the first signal light to obtain the electric signal specifically comprises the following steps:

step S531 converts the optical signal of the first signal light into a first electrical signal.

Specifically, the photoelectric conversion module 310 is configured to convert an optical signal of the first signal light into a first electrical signal. The array of the photosensors S is used to perform photoelectric signal conversion, and the optical signal of the first signal light is converted into a first electrical signal. The photosensitive sensor S may be, but is not limited to, a photodiode or a silicon photo cell. The plurality of photosensitive sensors S are all connected in parallel and operate in a reverse bias state (as shown in the figure), when visible light is incident on the photosensitive sensors S, the positive electrodes of the photosensitive sensors S generate voltage which changes along with the change of light intensity, and photoelectric conversion is achieved.

Step S532, the first electrical signal is isolated, and the dc component and the first interference signal are filtered to obtain a second electrical signal.

Specifically, the isolation processing module 320 is configured to isolate the first electrical signal, and sequentially filter out the direct current portion and the first interference signal to obtain the second electrical signal. In particular, the isolation of the voltage generated by the photosensitive sensor S is realized by a first capacitor C1, and after filtering to remove the dc component, part of the background light which is not fast converted can be effectively removed. Further, the voltage signal after filtering the background light may contain other signals with various frequency interference sources besides the signal with the preset frequency sent by the light source emitter 100, and then the second electrical signal is obtained after filtering the interference signals.

Step S533, amplifying the second electrical signal, and filtering the electrical signal of the first electrical signal lower than the preset frequency and higher than the preset frequency to obtain a third electrical signal.

Specifically, the amplifying and filtering module 330 is configured to amplify the second electrical signal and filter electrical signals in the second electrical signal that are lower than a preset frequency and higher than the preset frequency to obtain a third electrical signal.

First, the second electrical signal is amplified by the transistor amplifier circuit 332, so as to increase the amplitude of the second electrical signal. Then, the second electrical signal amplified by the transistor amplifying circuit 332 is further amplified according to the band-pass filter amplifier 334 and low-frequency and high-frequency components which are not within a required range are filtered out, that is, electrical signals which are lower than a preset frequency and higher than the preset frequency in the second electrical signal are filtered out, so that a third electrical signal is obtained.

In a specific embodiment, the third electrical signal after filtering and amplifying is further subjected to dc component isolation, and then simultaneously sent to a plurality of the specific frequency detectors 341, and when information containing a specific frequency is detected, the corresponding specific frequency detector 341 outputs an effective signal to be sent to the corresponding input pin of the processor 360. The specific frequency detection module 340 can identify and identify a plurality of specific frequencies simultaneously as required, and can complete detection within 3 signal periods of the specific frequency signal, thereby realizing rapid identification of a plurality of frequency information. In general, it can also be understood that the light source transmitter 100 can modulate a plurality of periodic signals with preset frequencies on the first signal light, and the light source light receiver 200 and the light source processor 300 can simultaneously perform detection identification on the first signal light carrying the plurality of periodic signals with preset frequencies, and can be used for simulating and identifying different weapons in shooting battles and giving damage values corresponding to the weapons.

Step S534, the third electrical signal is converted and the illumination intensity corresponding to the first signal light is calculated.

Specifically, the light intensity detection module 350 performs low-pass filtering on the third electrical signal, converts the third electrical signal into an effective direct current component, then obtains the illumination intensity through AD conversion calculation, and calculates an average value of a plurality of illumination intensities as the illumination intensity, thereby determining whether the received light source is within the effective killing distance according to the illumination intensity.

After the processing, the light intensity detection module 350 only performs light intensity detection on the first signal light carrying the preset frequency information, and performs effective filtering on other ambient light or an interference light source not containing the preset frequency information, so that the system can be well adapted to a weak light environment or a strong light environment.

In some preferred embodiments, the visible light simulated shooting match method further comprises the steps of:

in step S550, the sound intensity corresponding to the first signal light is simulated.

Specifically, the audio module 140 is configured to simulate the sound intensity corresponding to the first signal light. While firing a simulated paintball, that is, the light source emitter 100 is emitting visible light, the audio module 140 simulates the sound of a shot or explosion of a different bullet, simulating the sound of vibration when fired. Participants who participate in shooting battles feel more realistic.

In further preferred embodiments, the visible light simulated shooting match method further comprises the steps of:

step S560, simulating the recoil strength corresponding to the first signal light.

Specifically, the feedback module 150 is configured to simulate the squat force intensity corresponding to the first signal light. The feedback module 150 may use an eccentric rotor motor or a transverse linear motor with a smaller power to achieve better simulation.

The positions of step S550 and step S560 may be interchanged.

The visible light simulation shooting fight method and the visible light simulation shooting fight system adopt the visible light source for emission and reception, so that the simulated shooting fight can see the bullet track or the impact point, and effectively avoid the defect of reflection and reception of the traditional infrared laser, so that the shooting fight can be accurately aimed, and the fight experience is enhanced; the invention can be applied to various weapon system simulations of different range and different damage, including pistol, automatic rifle, sniper gun, shotgun and sheet-killed grenade, and can be applied to multi-scene simulated shooting confrontation exercise.

The light source emitter 100 of the present invention emits visible light and may be used in various simulated combat weapon emitting systems. If long-distance shooting is needed, visible laser is used as a light source, if a short-distance shotgun is simulated, an LED laser lamp with certain direction constraint can be used, and if a weapon for killing in a short-distance range, such as a grenade, is to be simulated, an LED emitting laser light source array capable of forming omnidirectional radiation is used. Different weapon types modulate the light using different specific frequencies so that the receiving system can distinguish.

Furthermore, in order to pursue the requirement of long-distance shooting, the light source needs to adopt visible laser with good directivity, the transmission of a communication command can be completed only by using the traditional encoding and decoding technology and requiring the laser conduction time to be more than 100 milliseconds, the transmission power is high, and the retina of the eye is easily damaged, however, the visible light simulation shooting fight method and the system provided by the invention can be completed in less than 1 millisecond by only identifying the frequency information in the visible light, the transmission energy is small, the retina is not damaged, and the simulation fight using the visible light source becomes very safe.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.