CN112769487A - Individual soldier night vision optical communication helmet system - Google Patents
Individual soldier night vision optical communication helmet system Download PDFInfo
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- CN112769487A CN112769487A CN202011621694.2A CN202011621694A CN112769487A CN 112769487 A CN112769487 A CN 112769487A CN 202011621694 A CN202011621694 A CN 202011621694A CN 112769487 A CN112769487 A CN 112769487A
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- 230000006854 communication Effects 0.000 title claims abstract description 119
- 238000004891 communication Methods 0.000 title claims abstract description 116
- 230000004297 night vision Effects 0.000 title claims abstract description 83
- 230000003287 optical effect Effects 0.000 title claims abstract description 27
- 238000005286 illumination Methods 0.000 claims abstract description 9
- 239000011324 bead Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 9
- 108091026890 Coding region Proteins 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000875 corresponding effect Effects 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000004438 eyesight Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000002079 cooperative effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
- G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/502—LED transmitters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Optical Communication System (AREA)
- Helmets And Other Head Coverings (AREA)
Abstract
The invention discloses an individual night vision optical communication helmet system, which comprises a helmet; an individual night vision helmet system is installed on the helmet; the individual night vision helmet system comprises a main control circuit board for overall machine control; the starlight level camera set is electrically connected with the main control circuit board and is used for collecting scene videos and transmitting the shot scene videos to the main control circuit board; the objective lens is arranged at the front end of the starlight-level camera set and used for focusing the starlight-level camera; the two micro-displays are electrically connected with the main control circuit board and used for displaying scene videos; two display eyepieces which are arranged at the front side of the display end of the micro display and used for near-to-eye observation; the infrared LED array is electrically connected with the main control circuit board and is used for illumination and communication; the individual night vision optical communication helmet system realizes visible light-free illumination observation and anti-interference cooperative communication in a strong electromagnetic interference environment at night.
Description
Technical Field
The invention relates to an individual night vision helmet system, in particular to an individual night vision optical communication helmet system, and belongs to the technical field of communication equipment.
Background
The helmet is the essential equipment of individual soldier's operation, and it will set up communication system generally to satisfy the communication of operation process, like chinese patent application no: 201520087101.7, discloses a communication helmet, comprising: a helmet; the communication module is arranged in the helmet and used for communicating with the mobile terminal; the voice device is connected with the communication module and used for sending information to the communication module or receiving information from the communication module; the communication helmet is internally provided with the communication module and the voice device, the concealment can be damaged by using voice to transmit instructions, and for some night battlefield environments, the radio communication of a single soldier is easy to interfere, the visible light is easy to expose, and the transmitted gesture instructions cannot be seen clearly; therefore, there is an urgent need for a night vision helmet system with low illumination night vision capability, anti-electromagnetic interference capability and cooperative combat capability, such as the chinese patent application no: 201911251855.0, discloses a helmet night vision device with secret communication function, comprising: the helmet night vision device with the confidential communication function realizes real-time recording of an observation target by the helmet night vision device, confidential transmission with the outside and real-time acquisition of an instruction signal, and enhances interaction between the helmet night vision device and the outside; however, the device only has local observation and data communication functions, cannot realize self night vision monitoring brightness adjustment and cooperative combat cooperation, cannot meet investigation and cooperative combat application, and particularly cannot adapt to hidden cooperative action occasions.
Disclosure of Invention
In order to solve the problems, the invention provides an individual night vision optical communication helmet system which realizes visible light-free illumination observation and anti-interference cooperative communication under a strong electromagnetic interference environment at night.
The individual night vision optical communication helmet system comprises a helmet; an individual night vision helmet system is installed on the helmet; the individual night vision helmet system comprises a main control circuit board for overall machine control; the starlight level camera set is electrically connected with the main control circuit board and is used for collecting scene videos and transmitting the shot scene videos to the main control circuit board; the objective lens is arranged at the front end of the starlight-level camera set and used for focusing the starlight-level camera; the two micro-displays are electrically connected with the main control circuit board and used for displaying scene videos; two display eyepieces which are arranged at the front side of the display end of the micro display and used for near-to-eye observation; the infrared LED array is electrically connected with the main control circuit board and used for illumination and communication, and during video acquisition, night scenes are shot by 4 starlight level cameras and transmitted to the main control circuit board; then, the main control circuit board enhances the scene video; then, the main control circuit board outputs the enhanced video to the micro display for displaying, and at the moment, human eyes can observe the scene displayed on the micro display through a display eyepiece; the main control circuit board can adjust the infrared LED to supplement light according to the gray level of a scene image, and specifically, the main control circuit board processes 2 images collected by 2 front starlight level cameras installed at the front end of a helmet, respectively performs enhancement processing on the images, and sends the images to 2 micro displays to form stereoscopic vision display; meanwhile, extracting the gray information and the edge histogram of the enhanced image, normalizing and weighting the gray information and the edge histogram to be used as a PWM duty factor of the LED dimming circuit at the front end of the helmet; during communication, a helmet main control circuit board transmits coded information through an infrared LED array; another helmet starlight level camera captures far-field infrared LED information; and decoding the coded information through the main control circuit board to obtain far-field information and overlapping the far-field information to video output.
Further, the main control circuit board is installed on the rear side of the helmet.
Furthermore, the starlight level camera set is composed of two front starlight level cameras symmetrically arranged at the front end of the helmet and two side starlight level cameras arranged at two sides of the helmet.
Furthermore, the micro display and the display eyepiece are sequentially arranged in the binocular tube, and the display eyepiece is positioned at one side close to the helmet, so that the observation of human eyes is facilitated; the binocular tube is movably hung at the front end of the helmet through a bracket, and the bracket can be a night vision device bracket in the prior art and is used for fixedly hanging the binocular tube at the front end of the helmet, so that a user can conveniently wear and observe the binocular tube.
Furthermore, LED lamp beads of the infrared LED array are uniformly distributed on the periphery of the helmet.
Furthermore, each LED lamp bead in the infrared LED array is respectively and electrically connected with a PWM dimming circuit in a main control circuit board, when dimming is needed, the main control circuit board sends a signal to the PWM dimming circuit, and the PWM dimming circuit sends a signal to each LED lamp bead to realize duty ratio adjustment; the brightness of the whole infrared LED array is adjusted, when coding communication is needed, the main control circuit board sends signals to the PWM dimming circuit, the PWM dimming circuit controls each LED lamp bead, and the corresponding LED lamp bead is lightened and closed or lightened and dimmed, so that the infrared LED array displays communication information; the communication information is collected through a starlight-level camera of another individual night vision helmet system and fed back to the micro-display, and the communication information informed by the infrared LED array can be obtained by observing the micro-display.
Furthermore, the master control circuit board is connected with a control keyboard and a communication information memory in a wired or wireless mode; in the wired connection mode, the control keyboard is directly arranged on the helmet, and in the wireless connection mode, the control keyboard is arranged on the bracelet or the remote control terminal;
when the PWM dimming circuit is used for dimming, brightness information input is completed by controlling brightness adjusting keys on a keyboard, or scene brightness is obtained through a starlight level camera to realize follow-up adjustment, when the PWM dimming circuit is used for communication, communication data input is completed by controlling communication information keys on the keyboard, after a certain communication key is pressed, a main control circuit board detects an input key value and inquires coding information of an information memory in a key value address inquiry mode, and therefore the coding information is fed back to an infrared LED array through the PWM dimming circuit;
when the PWM dimming circuit is in communication, information transmission can be acquired and completed through on-site gestures; the field gesture collection is specifically as follows:
the method comprises the steps that firstly, a front starlight level camera of an individual night vision helmet system is used for collecting hand images, and a main control circuit board is used for identifying hand areas to obtain identification codes;
and secondly, inquiring the coded information of the information memory in an address inquiry mode through the identification code, and after the coded information is acquired, feeding the coded information back to the infrared LED array through the PWM dimming circuit.
And further, after the coded information is displayed on the infrared LED array, the infrared LED array information is collected through a starlight level camera of the far-end individual night vision helmet system, and is superposed on an output image after being decoded, so that the information is displayed on the micro display, and a far-end helmet wearer can see gesture instructions.
Further, the helmet system comprises the following communication processes:
firstly, a main control circuit board of a near-end individual night vision helmet system drives an infrared LED array to carry out on-off modulation on a coded signal; 4 starlight level cameras of the individual night vision helmet system positioned at the far end collect the scene video of the other side; 4 starlight-level cameras of a remote individual night vision helmet system collect scene videos, and a main control circuit board drives an infrared LED array to conduct on-off modulation on coded signals through a PWM dimming circuit;
secondly, reading videos collected by 4 starlight level cameras by a main control circuit board of the remote individual night vision helmet system, and analyzing and processing video images;
thirdly, a main control circuit board of the near-end individual night vision helmet system conducts binarization processing on the processed image, detects the target position of the infrared LED and determines the emission direction of the target infrared LED;
fourthly, acquiring the images in the series of third steps, positioning a first frame image of the detected infrared LED target position, and pausing the movement of the far-end helmet wearer;
fifthly, summing pixel values of the infrared LED target position areas corresponding to each frame of binary image, and judging the on and off of the infrared LED corresponding to the current frame to obtain a coding sequence;
and sixthly, decoding the coded sequence to obtain communication information.
Furthermore, the individual night vision optical communication helmet system is provided with an independent scene information communication module which is communicated with the main control circuit board; the operation is as follows:
firstly, opening a near-end helmet through a corresponding key to open an independent scene information communication module, obtaining key information of the independent scene information communication module by a main control circuit board after the independent scene information communication module is opened, and inquiring coded information of an information memory in a key value address inquiry mode, so that the coded information is fed back to an infrared LED array through a PWM dimming circuit;
then, a far-end helmet starlight level camera acquires scene information of a near-end helmet, acquires infrared LED array coding information, decodes the infrared LED array coding information and acquires a request communication signal;
and finally, the independent scene information communication module of the far-end helmet is opened, so that the far-end independent scene information communication module and the near-end independent scene information communication module are interconnected, and data collected by the star-light level camera of the near-end helmet is directly transmitted to the micro display of the far-end helmet through the independent scene information communication module.
Compared with the prior art, the individual night vision optical communication helmet system has low-illumination night vision capability and electromagnetic interference resistance, can realize visible-light-free illumination observation and anti-interference cooperative communication, and has cooperative combat capability.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic block diagram of the control principle of the present invention.
Fig. 3 is a schematic block diagram of the working principle of the present invention.
Fig. 4 is a schematic structural diagram of an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of another embodiment of the present invention.
The components in the drawings are labeled as: the system comprises a helmet 1, a main control circuit board 2, a starlight camera group 3, a front starlight camera 31, a side starlight camera 32, an objective 4, a micro display 5, a display eyepiece 6, an infrared LED array 7, a binocular tube 8 and a support 9.
Detailed Description
The individual night vision optical communication helmet system as shown in fig. 1 to 3 comprises a helmet 1; an individual night vision helmet system is arranged on the helmet 1; the individual night vision helmet system comprises a main control circuit board 2 for overall machine control; the starlight level camera set 3 is electrically connected with the main control circuit board 2 and is used for collecting scene videos and transmitting the shot scene videos to the main control circuit board; the objective lens 4 is arranged at the front end of the starlight level camera set 3 and used for focusing the starlight level camera; the two micro-displays 5 are electrically connected with the main control circuit board 2 and are used for displaying scene videos; two display eyepieces 6 which are arranged at the front side of the display end of the micro display and are used for near-to-eye observation; the infrared LED array 7 is electrically connected with the main control circuit board 2 and used for illumination and communication, and during video acquisition, night scenes are shot by 4 starlight level cameras and transmitted to the main control circuit board; then, the main control circuit board enhances the scene video; then, the main control circuit board outputs the enhanced video to the micro display for displaying, and at the moment, human eyes can observe the scene displayed on the micro display through a display eyepiece; the main control circuit board can adjust the infrared LED to supplement light according to the gray level of a scene image, and specifically, the main control circuit board processes 2 images collected by 2 front starlight level cameras installed at the front end of a helmet, respectively performs enhancement processing on the images, and sends the images to 2 micro displays to form stereoscopic vision display; meanwhile, extracting the gray information and the edge histogram of the enhanced image, normalizing and weighting the gray information and the edge histogram to be used as a PWM duty factor of the LED dimming circuit at the front end of the helmet; during communication, the near-end main control circuit board transmits the coded information through the infrared LED array; a far-end starlight level camera captures the flicker of a far-field infrared LED; and decoding the coded information through the main control circuit board to obtain far-field information and overlapping the far-field information to video output.
The main control circuit board 2 is installed at the rear side of the helmet 1.
The starlight level camera set 3 is composed of two front starlight level cameras 31 symmetrically arranged at the front end of the helmet 1 and two side starlight level cameras 32 arranged at two sides of the helmet 1.
The micro display 5 and the display ocular 6 are sequentially arranged in the binocular tube 8, and the display ocular is positioned at one side close to the helmet, so that the observation of human eyes is facilitated; the binocular tube 8 is movably hung at the front end of the helmet 1 through a bracket 9.
LED lamp beads of the infrared LED array 7 are uniformly distributed on the periphery of the helmet 1; each LED lamp bead in the infrared LED array 7 is respectively and electrically connected with a PWM dimming circuit in a main control circuit board, when dimming is needed, the main control circuit board gives a signal to the PWM dimming circuit, and the PWM dimming circuit gives a signal to each LED lamp bead to realize duty ratio adjustment; the brightness of the whole infrared LED array is adjusted, when coding communication is needed, the main control circuit board sends signals to the PWM dimming circuit, the PWM dimming circuit controls each LED lamp bead, and the corresponding LED lamp bead is lightened and closed or lightened and dimmed, so that the infrared LED array displays communication information; the communication information is collected through a starlight-level camera of another individual night vision helmet system and fed back to the micro-display, and the communication information informed by the infrared LED array can be obtained by observing the micro-display.
As shown in fig. 4, the main control circuit board is connected with a control keyboard 10 and a communication information memory 11 by wire or wireless; in the wired connection mode, the control keyboard is directly arranged on the helmet, and in the wireless connection mode, the control keyboard is arranged on the bracelet or the remote control terminal;
when the PWM dimming circuit is used for dimming, brightness information input is completed by controlling brightness adjusting keys on a keyboard, or scene brightness is obtained through a starlight level camera to realize follow-up adjustment, when the PWM dimming circuit is used for communication, communication data input is completed by controlling communication information keys on the keyboard, after a certain communication key is pressed, a main control circuit board detects an input key value and inquires coding information of an information memory in a key value address inquiry mode, and therefore the coding information is fed back to an infrared LED array through the PWM dimming circuit;
when the PWM dimming circuit is in communication, information transmission can be acquired and completed through on-site gestures; the field gesture collection is specifically as follows:
the method comprises the steps that firstly, a front starlight level camera of an individual night vision helmet system is used for collecting hand images, and a main control circuit board is used for identifying hand areas to obtain identification codes;
secondly, inquiring the coded information of the information memory in an address inquiry mode through the identification code, and after the coded information is obtained, feeding the coded information back to the infrared LED array through a PWM dimming circuit; after the coded information is displayed on the infrared LED array, the infrared LED array information is collected through a starlight level camera of the far-end individual night vision helmet system, and is superposed on an output image after being decoded, so that the information is displayed on the micro display, and a far-end helmet wearer can see gesture instructions.
In still another embodiment, the helmet system comprises the following communication processes:
firstly, a main control circuit board of a near-end individual night vision helmet system drives an infrared LED array to carry out on-off modulation on a coded signal; 4 starlight level cameras of the individual night vision helmet system positioned at the far end collect the scene video of the other side; 4 starlight-level cameras of a remote individual night vision helmet system collect scene videos, and a main control circuit board drives an infrared LED array to conduct on-off modulation on coded signals through a PWM dimming circuit;
secondly, reading videos collected by 4 starlight level cameras by a main control circuit board of the remote individual night vision helmet system, and analyzing and processing video images;
thirdly, a main control circuit board of the near-end individual night vision helmet system conducts binarization processing on the processed image, detects the target position of the infrared LED and determines the emission direction of the target infrared LED;
fourthly, acquiring the images in the series of third steps, positioning a first frame image of the detected infrared LED target position, and pausing the movement of the far-end helmet wearer;
fifthly, summing pixel values of the infrared LED target position areas corresponding to each frame of binary image, and judging the on and off of the infrared LED corresponding to the current frame to obtain a coding sequence;
and sixthly, decoding the coded sequence to obtain communication information.
As shown in fig. 5, in still another embodiment, the individual night vision optical communication helmet system is provided with an independent scene information communication module 12 communicating with the main control circuit board 2; the operation is as follows:
firstly, opening a near-end helmet through a corresponding key to open an independent scene information communication module, obtaining key information of the independent scene information communication module by a main control circuit board after the independent scene information communication module is opened, and inquiring coded information of an information memory in a key value address inquiry mode, so that the coded information is fed back to an infrared LED array through a PWM dimming circuit;
then, a far-end helmet starlight level camera acquires scene information of a near-end helmet, acquires infrared LED array coding information, decodes the infrared LED array coding information and acquires a request communication signal;
and finally, the independent scene information communication module of the far-end helmet is opened, so that the far-end independent scene information communication module and the near-end independent scene information communication module are interconnected, and data collected by the star-light level camera of the near-end helmet is directly transmitted to the micro display of the far-end helmet through the independent scene information communication module.
Example 1:
in the individual night vision optical communication helmet system, one individual night vision optical communication helmet system performs non-radio communication with the other individual night vision optical communication helmet system, taking the example that the individual night vision helmet system at the near end sends signals and the individual night vision helmet system at the far end receives signals, the communication method of the individual night vision helmet system is as follows:
firstly, a main control circuit board of a near-end individual night vision helmet system drives an infrared LED array to carry out on-off modulation on a coded signal; 4 starlight level cameras of the individual night vision helmet system positioned at the far end collect the scene video of the other side;
secondly, a main control circuit board of the remote individual night vision helmet system reads videos collected by 4 starlight level cameras and analyzes and processes the video images by using an interframe difference method;
thirdly, a main control circuit board of the remote individual night vision helmet system carries out binarization processing on the image obtained by subtracting the two frames, detects the target position of the infrared LED and determines the emission direction of the target infrared LED;
fourthly, acquiring the images in the series of third steps, positioning a first frame image of the detected infrared LED target position, and enabling a far-end helmet wearer to pause moving;
fifthly, summing pixel values of the infrared LED target position areas corresponding to each frame of binary image, and judging the on and off of the infrared LED corresponding to the current frame to obtain a coding sequence;
and sixthly, decoding the coding sequence by a main control circuit board of the remote individual night vision helmet system to obtain communication information.
Example 2:
in the individual night vision optical communication helmet system, one individual night vision optical communication helmet system and the other individual night vision optical communication helmet system can also perform gesture communication, taking the example that the individual night vision helmet system at the near end sends signals and the individual night vision helmet system at the far end receives signals, the method for performing gesture communication by the individual night vision helmet system comprises the following steps:
firstly, acquiring hand images by using a front starlight level camera of an individual night vision helmet system, identifying hand areas through a main control circuit board, and judging gesture instructions;
secondly, transmitting the gesture command by using the communication method of the individual night vision helmet system in the embodiment 1;
and thirdly, the remote individual night vision helmet system decodes the gesture instruction information and then superposes the gesture instruction information on an output image, so that the gesture instruction information is displayed on the micro display, and a remote helmet wearer sees the gesture instruction.
The above-described embodiments are merely preferred embodiments of the present invention, and all equivalent changes or modifications of the structures, features and principles described in the claims of the present invention are included in the scope of the present invention.
Claims (9)
1. An individual night vision optical communication helmet system comprises a helmet; an individual night vision helmet system is installed on the helmet; the method is characterized in that: the individual night vision helmet system comprises a main control circuit board for overall machine control; the starlight level camera set is electrically connected with the main control circuit board and is used for collecting scene videos and transmitting the shot scene videos to the main control circuit board; the objective lens is arranged at the front end of the starlight-level camera set and used for focusing the starlight-level camera; the two micro-displays are electrically connected with the main control circuit board and used for displaying scene videos; two display eyepieces which are arranged at the front side of the display end of the micro display and used for near-to-eye observation; and the infrared LED array is electrically connected with the main control circuit board and is used for illumination and communication.
2. The individual night vision optical communication helmet system of claim 1 further comprising: the main control circuit board is installed on the rear side of the helmet.
3. The individual night vision optical communication helmet system of claim 1 further comprising: the starlight level camera set consists of two front starlight level cameras symmetrically arranged at the front end of the helmet and two side starlight level cameras arranged at two sides of the helmet; the micro display and the display ocular are sequentially arranged in the binocular tube; the binocular tube is movably hung at the front end of the helmet through a bracket.
4. The individual night vision optical communication helmet system of claim 1 further comprising: LED lamp beads of the infrared LED array are uniformly distributed on the periphery of the helmet.
5. The individual night vision optical communication helmet system of claim 1 or 4, wherein: each LED lamp bead in the infrared LED array is respectively and electrically connected with a PWM dimming circuit in a main control circuit board, when dimming is needed, the main control circuit board gives a signal to the PWM dimming circuit, and the PWM dimming circuit gives a signal to each LED lamp bead to realize duty ratio adjustment; the brightness of the whole infrared LED array is adjusted, when coding communication is needed, the main control circuit board sends signals to the PWM dimming circuit, the PWM dimming circuit controls each LED lamp bead, and the corresponding LED lamp bead is lightened and closed or lightened and dimmed, so that the infrared LED array displays communication information; the communication information is collected through a starlight-level camera of another individual night vision helmet system and fed back to the micro-display, and the communication information informed by the infrared LED array can be obtained by observing the micro-display.
6. The individual night vision optical communication helmet system of claim 1 further comprising: the master control circuit board is connected with a control keyboard and a communication information memory in a wired or wireless mode; in the wired connection mode, the control keyboard is directly arranged on the helmet, and in the wireless connection mode, the control keyboard is arranged on the bracelet or the remote control terminal;
when the PWM dimming circuit is used for dimming, brightness information input is completed by controlling brightness adjusting keys on a keyboard, or scene brightness is obtained through a starlight level camera to realize follow-up adjustment, when the PWM dimming circuit is used for communication, communication data input is completed by controlling communication information keys on the keyboard, after a certain communication key is pressed, a main control circuit board detects an input key value and inquires coding information of an information memory in a key value address inquiry mode, and therefore the coding information is fed back to an infrared LED array through the PWM dimming circuit;
when the PWM dimming circuit is in communication, information transmission can be acquired and completed through on-site gestures; the field gesture collection is specifically as follows:
the method comprises the steps that firstly, a front starlight level camera of an individual night vision helmet system is used for collecting hand images, and a main control circuit board is used for identifying hand areas to obtain identification codes;
and secondly, inquiring the coded information of the information memory in an address inquiry mode through the identification code, and after the coded information is acquired, feeding the coded information back to the infrared LED array through the PWM dimming circuit.
7. The individual night vision optical communication helmet system of claim 6 wherein: after the coded information is displayed on the infrared LED array, the infrared LED array information is collected through a starlight level camera of the far-end individual night vision helmet system, and is superposed on an output image after being decoded, so that the information is displayed on the micro display, and a far-end helmet wearer can see gesture instructions.
8. The individual night vision optical communication helmet system of claim 1 further comprising: the helmet system comprises the following communication processes:
firstly, a main control circuit board of a near-end individual night vision helmet system drives an infrared LED array to carry out on-off modulation on a coded signal; 4 starlight level cameras of the individual night vision helmet system positioned at the far end collect the scene video of the other side; 4 starlight-level cameras of a remote individual night vision helmet system collect scene videos, and a main control circuit board drives an infrared LED array to conduct on-off modulation on coded signals through a PWM dimming circuit;
secondly, reading videos collected by 4 starlight level cameras by a main control circuit board of the remote individual night vision helmet system, and analyzing and processing video images;
thirdly, a main control circuit board of the near-end individual night vision helmet system conducts binarization processing on the processed image, detects the target position of the infrared LED and determines the emission direction of the target infrared LED;
fourthly, acquiring the images in the series of third steps, positioning a first frame image of the detected infrared LED target position, and pausing the movement of the far-end helmet wearer;
fifthly, summing pixel values of the infrared LED target position areas corresponding to each frame of binary image, and judging the on and off of the infrared LED corresponding to the current frame to obtain a coding sequence;
and sixthly, decoding the coded sequence to obtain communication information.
9. The individual night vision optical communication helmet system of claim 1 further comprising: the individual night vision optical communication helmet system is provided with an independent scene information communication module communicated with the main control circuit board; the operation is as follows:
firstly, opening a near-end helmet through a corresponding key to open an independent scene information communication module, obtaining key information of the independent scene information communication module by a main control circuit board after the independent scene information communication module is opened, and inquiring coded information of an information memory in a key value address inquiry mode, so that the coded information is fed back to an infrared LED array through a PWM dimming circuit;
then, a far-end helmet starlight level camera acquires scene information of a near-end helmet, acquires infrared LED array coding information, decodes the infrared LED array coding information and acquires a request communication signal;
and finally, the independent scene information communication module of the far-end helmet is opened, so that the far-end independent scene information communication module and the near-end independent scene information communication module are interconnected, and data collected by the star-light level camera of the near-end helmet is directly transmitted to the micro display of the far-end helmet through the independent scene information communication module.
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