阅读说明：本技术 一种基于3d虚拟现实交互的急救考核培训系统 (First-aid examination training system based on 3D virtual reality interaction ) 是由 陶莉 翟文慧 董翼 叶妍 王伟 路晶凯 李晓刚 张金萍 夏爱祥 林虎 刘志鹏 于 2021-08-19 设计创作，主要内容包括：本发明属于急救考核系统技术领域,尤其涉及一种基于3D虚拟现实交互的急救考核培训系统,本发明解决了现有技术存在由于缺少实用且可靠的适用于急救培训的现实环境采集应用系统,从而导致无法真实的进行急救演练,同时无法进行急救分析的问题,具有对人体在急救时的动作重复交互的演练,更为急救分析提供了可视化的系统支持,具有简单、实用,适用性强的特点的有益技术效果。(The invention belongs to the technical field of emergency examination systems, and particularly relates to an emergency examination training system based on 3D virtual reality interaction, which solves the problems that in the prior art, because a practical and reliable real environment acquisition application system suitable for emergency training is lacked, emergency drilling cannot be truly carried out, and meanwhile, emergency analysis cannot be carried out.)

1. A3D virtual reality interaction-based emergency assessment training system is characterized by comprising an emergency training system C10, wherein the output of the emergency training system C10 is connected with an emergency questionnaire system C11, the output of the emergency questionnaire system C11 is connected with an emergency simulation system C12, and the output of the emergency simulation system C12 is connected with an emergency assessment system C13;

the front end of the emergency simulation system C12 is connected with a virtual reality fusion module H10, one end of the virtual reality fusion module H10 is connected with a real environment acquisition unit, and the other end is connected with a virtual world construction unit;

the virtual world construction unit comprises a virtual foundation construction module B20 and a 3D model library B10, the virtual foundation construction module B20 and the 3D model library B10 are respectively connected with a virtual world construction module B30 in output, and the virtual world construction module B30 is connected with a virtual reality fusion module H10 in output;

the real environment acquisition unit comprises an audio acquisition system A10, a video acquisition system A20 and an action acquisition system A30, the audio acquisition system A10, the video acquisition system A20 and the action acquisition system A30 are respectively in output connection with a real environment acquisition module A40, and the real environment acquisition module A40 is in output connection with a virtual reality fusion module H10.

2. The first aid assessment training system according to claim 1, wherein the action acquisition system a30 comprises a head action acquisition unit a301, a lumbar action acquisition unit a 308;

a left shoulder motion acquisition unit A302, a left arm motion acquisition unit A303, a left hand motion acquisition unit A304, a right shoulder motion acquisition unit A305, a right arm motion acquisition unit A306 and a right hand motion acquisition unit A307;

a left thigh action acquisition unit A309, a left shank action acquisition unit A310, a left foot action acquisition unit A311, a right thigh action acquisition unit A312, a right shank action acquisition unit A313 and a right foot action acquisition unit A314;

both comprise an action acquisition unit.

3. The assessment training system of claim 2, wherein the action acquisition unit comprises:

the output of the acceleration sensing circuit A3010 is connected to an acceleration data processor B3010, and the output of the acceleration data processor B3010 is connected to a real environment acquisition module A40;

a gyroscope sensing circuit A3020, the output of the gyroscope sensing circuit A3020 is connected to a gyroscope data processor B3020, and the output of the gyroscope data processor B3020 is connected to a real environment acquisition module A40;

the output of the magnetometer sensing circuit A3030 is connected to the magnetometer data processor B3030, and the output of the magnetometer data processor B3030 is connected to the real environment acquisition module A40.

4. The first aid assessment training system according to claim 3, wherein the acceleration sensing circuit A3010 comprises an accelerometer U3011, the output of the positive output end of the accelerometer U3011 is connected to one end of a capacitor C3011 and one end of a resistor R3011, the output of the other end of the resistor R3011 is connected to the negative input end of an amplifier U3012, the negative output end of the accelerometer U3011, the other end of the capacitor C3011 and the positive input end of the amplifier U3012 are all grounded, the output end of the amplifier U3012 is connected to one end of the capacitor C3012 and one end of the resistor R3012 in a feedback manner, the other end of the capacitor C3012 and the other end of the resistor R3012 are connected to the negative input end of the amplifier U3012 together;

the output end of the amplifier U3012 is connected to one end of a capacitor C3013, the output of the other end of the capacitor C3013 is connected to one end of a resistor R3013, the output of the other end of the resistor R3013 is connected to the negative input end of the amplifier U3013, the positive input end of the amplifier U3013 is grounded through a resistor R3015, the output end of the amplifier U3013 is connected to one end of an adjustable resistor AR3011 and one end of a capacitor C3014 in a feedback manner, two ends of the adjustable resistor AR3011 are connected to one end of the resistor R3014, and the other end of the capacitor C3014 and the other end of the resistor R3014 are connected to the negative input end of the amplifier U3012;

the adjustable end output of the amplifier U3012 is connected to one end of a resistor R3016, the other end of the resistor R3016 is connected to the adjustable end of an adjustable resistor AR3012, one end of the adjustable resistor AR3012 is connected to the positive zero point end of the amplifier U3012, and the other end of the adjustable resistor AR3012 is connected to the negative zero point end of the amplifier U3012.

5. The first aid assessment training system according to claim 4, wherein the gyroscope sensing circuit A3020 comprises a gyroscope U302, the gyroscope U302 is connected to one end of a resistor R3017, the other end of the resistor R3017 is connected to one end of a capacitor C3015, the other end of the capacitor C3015 is connected to one end of a resistor R3018 and a positive input end of an amplifier U3013, the other end of the resistor R3018 is connected to digital ground, a negative input end of the amplifier U3013 is connected to one end of a resistor R3020, the other end of the resistor R3020 is connected to digital ground, and an output end of the amplifier U3013 is connected to one end of the resistor R3020 through a resistor R3019;

the system ground and the digital ground of the gyro sensing circuit a3020 are isolated by the buffer U3014.

6. The first aid assessment training system according to claim 5, wherein the magnetometer sensing circuit A3030 comprises a magnetometer integrated sensor chip U3015, one end of an IIC bus of the magnetometer integrated sensor chip U3015 is output to a corresponding port of the real environment acquisition module A40 through a resistor R3021, the other end of the IIC bus is output to a corresponding port of the real environment acquisition module A40 through a resistor R3022, a reset terminal of the magnetometer integrated sensor chip U3015 is grounded, a reset capacitor terminal of the magnetometer integrated sensor chip U3016 is grounded, and a bypass capacitor terminal of the magnetometer integrated sensor chip U3017 is grounded.

Technical Field

The invention belongs to the technical field of emergency examination systems, and particularly relates to an emergency examination training system based on 3D virtual reality interaction.

Background

The emergency examination system generally comprises an emergency training system, an emergency questionnaire system, an emergency simulation system, an emergency examination system and the like, wherein the emergency simulation system is the key of the system, and the emergency simulation system generally comprises a real environment acquisition unit and a virtual world construction unit, wherein the virtual world construction unit comprises an environment construction module and a 3D model library; the prior art exists owing to lack practical and reliable real environment who is applicable to the first aid training and gathers application system to lead to the unreal first aid rehearsal that carries on, can't carry out first aid analysis's problem simultaneously.

Disclosure of Invention

The invention provides a 3D virtual reality interaction-based emergency examination and training system, which aims to solve the problems that the prior art is lack of a practical and reliable real environment acquisition application system suitable for emergency training, so that emergency drilling cannot be truly carried out and emergency analysis cannot be carried out.

The technical problem solved by the invention is realized by adopting the following technical scheme: A3D virtual reality interaction-based emergency assessment training system comprises an emergency training system C10, wherein the output of the emergency training system C10 is connected with an emergency questionnaire system C11, the output of the emergency questionnaire system C11 is connected with an emergency simulation system C12, and the output of the emergency simulation system C12 is connected with an emergency assessment system C13;

the front end of the emergency simulation system C12 is connected with a virtual reality fusion module H10, one end of the virtual reality fusion module H10 is connected with a real environment acquisition unit, and the other end is connected with a virtual world construction unit;

further, the virtual world construction unit comprises a virtual foundation construction module B20 and a 3D model library B10, the virtual foundation construction module B20 and the 3D model library B10 are respectively connected with a virtual world construction module B30 in output, and the virtual world construction module B30 is connected with a virtual reality fusion module H10 in output;

the real environment acquisition unit comprises an audio acquisition system A10, a video acquisition system A20 and an action acquisition system A30, the audio acquisition system A10, the video acquisition system A20 and the action acquisition system A30 are respectively in output connection with a real environment acquisition module A40, and the real environment acquisition module A40 is in output connection with a virtual reality fusion module H10.

Further, the motion acquisition system a30 includes a head motion acquisition unit a301 and a waist motion acquisition unit a 308;

a left shoulder motion acquisition unit A302, a left arm motion acquisition unit A303, a left hand motion acquisition unit A304, a right shoulder motion acquisition unit A305, a right arm motion acquisition unit A306 and a right hand motion acquisition unit A307;

a left thigh action acquisition unit A309, a left shank action acquisition unit A310, a left foot action acquisition unit A311, a right thigh action acquisition unit A312, a right shank action acquisition unit A313 and a right foot action acquisition unit A314;

both comprise an action acquisition unit.

Further, the motion acquisition unit includes:

the output of the acceleration sensing circuit A3010 is connected to an acceleration data processor B3010, and the output of the acceleration data processor B3010 is connected to a real environment acquisition module A40;

a gyroscope sensing circuit A3020, the output of the gyroscope sensing circuit A3020 is connected to a gyroscope data processor B3020, and the output of the gyroscope data processor B3020 is connected to a real environment acquisition module A40;

the output of the magnetometer sensing circuit A3030 is connected to the magnetometer data processor B3030, and the output of the magnetometer data processor B3030 is connected to the real environment acquisition module A40.

Further, the acceleration sensing circuit a3010 includes an accelerometer U3011, the output of the positive output end of the accelerometer U3011 is connected to one end of a capacitor C3011 and one end of a resistor R3011, the output of the other end of the resistor R3011 is connected to the negative input end of an amplifier U3012, the negative output end of the accelerometer U3011, the other end of the capacitor C3011 and the positive input end of the amplifier U3012 are all grounded, the output end of the amplifier U3012 is connected in feedback to one end of the capacitor C3012 and one end of the resistor R3012, the other end of the capacitor C3012 and the other end of the resistor R3012 are connected to the negative input end of the amplifier U3012;

the output end of the amplifier U3012 is connected to one end of a capacitor C3013, the output of the other end of the capacitor C3013 is connected to one end of a resistor R3013, the output of the other end of the resistor R3013 is connected to the negative input end of the amplifier U3013, the positive input end of the amplifier U3013 is grounded through a resistor R3015, the output end of the amplifier U3013 is connected to one end of an adjustable resistor AR3011 and one end of a capacitor C3014 in a feedback manner, two ends of the adjustable resistor AR3011 are connected to one end of the resistor R3014, and the other end of the capacitor C3014 and the other end of the resistor R3014 are connected to the negative input end of the amplifier U3012;

the adjustable end output of the amplifier U3012 is connected to one end of a resistor R3016, the other end of the resistor R3016 is connected to the adjustable end of an adjustable resistor AR3012, one end of the adjustable resistor AR3012 is connected to the positive zero point end of the amplifier U3012, and the other end of the adjustable resistor AR3012 is connected to the negative zero point end of the amplifier U3012.

Further, the gyroscope sensing circuit a3020 includes a gyroscope U302, the gyroscope U302 is connected to one end of a resistor R3017, the other end of the resistor R3017 is connected to one end of a capacitor C3015, the other end of the capacitor C3015 is connected to one end of a resistor R3018 and a positive input end of an amplifier U3013, the other end of the resistor R3018 is connected to a digital ground, a negative input end of the amplifier U3013 is connected to one end of a resistor R3020, the other end of the resistor R3020 is connected to a digital ground, and an output end of the amplifier U3013 is connected to one end of the resistor R3020 through a resistor R3019;

the system ground and the digital ground of the gyro sensing circuit a3020 are isolated by the buffer U3014.

Further, the magnetometer sensing circuit a3030 includes a magnetometer integrated sensing chip U3015, one end of an IIC bus of the magnetometer integrated sensing chip U3015 is output to a corresponding port of the real environment acquisition module a40 through a resistor R3021, the other end of the IIC bus is output to a corresponding port of the real environment acquisition module a40 through a resistor R3022, a reset terminal of the magnetometer integrated sensing chip U3015 is grounded, a reset capacitor terminal of the magnetometer integrated sensing chip U3016 is grounded, and a bypass capacitor terminal of the magnetometer integrated sensing chip U3017 is grounded through a capacitor C3016.

Further, the audio acquisition system A10 and the video acquisition system A20 comprise corresponding video acquisition units and audio acquisition units;

the video acquisition unit includes camera A201, camera A201 output connection is in video decoder A202, video decoder A202 output connection is in video compressor A203, video compressor A203 output connection is in video transmission module A204, video transmission module A204 output connection is in the corresponding port of audio video controller A209, audio video controller A209 output connection is in temporary storage A210 and data memory A211.

The audio frequency collection unit includes adapter A205, adapter A205 output connects in audio decoder A206, audio decoder A206 output connects in audio compressor A207, audio compressor A207 output connects in audio transmission module A208, audio transmission module A208 output connects in audio video controller A209's corresponding port, audio video controller A209 output connects in temporary storage A210 and data memory A211.

Further, the video acquisition unit comprises a video acquisition circuit, the video acquisition circuit comprises a camera a201, the output of the camera a201 is connected to a video decoding chip U2010, the data end of the video decoding chip U2010 is connected with the data end of a video compression chip U2011, the clock end of the video decoding chip U2010 is connected with the clock end of a video compression chip U2011, the synchronization end of the video decoding chip U2010 is connected with the synchronization end of the video compression chip U2011, the IIC bus of the video decoding chip U2010 is connected with one IIC bus of the video compression chip U2011, the other IIC bus of the video compression chip U2011 is connected with the IIC bus of an interface conversion chip U2012, the output of the interface conversion chip U2012 is connected to a wireless sending chip U2013, and the wireless sending chip U2013 is output from a wireless receiving chip U2014, the IIC bus of the wireless receiving chip U2014 is connected to the video decompression chip U2016.

Further, the audio acquisition unit comprises an audio acquisition circuit, the audio acquisition circuit comprises a sound pickup A205, the output of the sound pickup A205 is connected to an audio decoding chip U1010, the data end of the audio decoding chip U1010 is connected with the data end of an audio compression chip U1011, the clock end of the audio decoding chip U1010 is connected with the clock end of the audio compression chip U1011, the synchronization end of the audio decoding chip U1010 is connected with the synchronization end of the audio compression chip U1011, the IIC bus of the audio decoding chip U1010 is connected with one IIC bus of the audio compression chip U1011, the other IIC bus of the audio compression chip U1012 is connected with the IIC bus of the interface conversion chip U1013, the output of the interface conversion chip U1012 is connected to a wireless transmitting chip U1013, and the wireless transmitting chip U1013 is wirelessly output from a wireless receiving chip U1014, the IIC bus of the wireless receiving chip U1014 is connected to the video decompression chip U1016.

The invention has the beneficial effects that:

the output of the C10 is connected with C11, the output of the emergency questionnaire system C11 is connected with C12, and the output of the emergency simulation system C12 is connected with C13; the front end of the first-aid simulation system C12 is connected with a virtual reality fusion module H10, one end of the virtual reality fusion module H10 is connected with a real environment acquisition unit, the other end is connected with a virtual world construction unit, the basic architecture of the system is constructed by a first-aid training system, a first-aid questionnaire system, a first-aid simulation system and a first-aid examination system, wherein the first-aid simulation system mainly comprises the real environment acquisition unit and the virtual world construction unit, the construction of the first-aid simulation system is realized by the fusion of the real environment acquisition unit and the virtual world construction unit, the virtual world construction unit mainly constructs a basic environment together by the basic construction module and a 3D model base, actions, sounds and video data during the first-aid operation of a human body are recorded into the system by the acquisition of the real environment, such as audio and video acquisition, action acquisition and the like, and real data during the first-aid operation of the human body are fitted into the constructed virtual environment by the virtual reality fusion module, a simulation system suitable for emergency drilling is built, the drilling of repeated interaction of actions of a human body during emergency treatment can be performed, and visual system support is provided for emergency analysis.

Drawings

FIG. 1 is a block diagram of an emergency assessment training system of the present invention;

FIG. 2 is a sensor profile of the assessment training system of the present invention;

FIG. 3 is a block diagram of a motion capture unit of the assessment training system of the present invention;

FIG. 4 is a schematic diagram of an acceleration sensing circuit of the action collection unit of the first aid assessment training system of the present invention;

FIG. 5 is a schematic diagram of a gyroscope sensing circuit of the action acquisition unit of the assessment training system of the present invention;

FIG. 6 is a schematic diagram of magnetometer sensing circuits of the motion capture unit of the assessment training system of the present invention;

FIG. 7 is a block diagram of a video acquisition unit and an audio acquisition unit of the first aid assessment training system of the present invention;

FIG. 8 is a schematic diagram of a video acquisition circuit of a video acquisition unit of the assessment training system of the present invention;

fig. 9 is a schematic diagram of an audio acquisition circuit of a video acquisition unit of the assessment and training system of the invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

in the figure:

c10-first aid training system; c11-first aid questionnaire system; c12-first aid simulation system; c13-first aid assessment system;

b20-a virtual foundation construction module, B10-A3D model library, B30-a virtual world construction module, H10-a virtual reality fusion module, A10-an audio acquisition system, A30-an action acquisition system and A40-a real environment acquisition module;

a301-head action acquisition unit, A308-waist action acquisition unit, A302-left shoulder action acquisition unit, A303-left arm action acquisition unit, A304-left hand action acquisition unit, A305-right shoulder action acquisition unit, A306-right arm action acquisition unit, A307-right hand action acquisition unit, A309-left thigh action acquisition unit, A310-left shank action acquisition unit, A311-left foot action acquisition unit, A312-right thigh action acquisition unit, A313-right shank action acquisition unit, and A314-right foot action acquisition unit;

a3010-acceleration sensing circuit, B3010-acceleration data processor, A3020-gyroscope sensing circuit, B3020-gyroscope data processor, A3030-magnetometer sensing circuit, B3030-magnetometer data processor;

u3011-accelerometer, C3011-capacitor, R3011-resistor, U3012-amplifier, C3012-capacitor, R3012-resistor, C3013-capacitor, R3013-resistor, R3015-resistor, AR 3011-adjustable resistor, R3014-resistor, C3014-capacitor, R3016-resistor, AR 3012-adjustable resistor;

u3020-gyroscope, R3017-resistor, C3015-capacitor, R3018-resistor, U3013-amplifier, R3020-resistor, R3019-resistor, U3014-buffer;

u3015-magnetometer integrated sensor chip, R3021-resistor, R3022-resistor, C3016-capacitor, C3017-capacitor;

a201-camera, A202-video decoder, A203-video compressor, A204-video transmission module, A209-audio and video controller, A210-temporary memory, A211-data memory, A206-audio decoder, A207-audio compressor, A208-audio transmission module;

a201-a camera, a U2010-a video decoding chip, a U2011-a video compression chip, a U2013-a wireless sending chip, a U2014-a wireless receiving chip and a U2016-a video decompression chip;

a205-sound pick-up, U1010-audio decoding chip, U1011-audio compression chip, U1012-interface conversion chip, U1013-wireless transmitting chip, U1014-wireless receiving chip, U1016-video decompression chip;

example (b):

example (b): as shown in fig. 1, an emergency assessment training system based on 3D virtual reality interaction includes an emergency training system C10, an output of the emergency training system C10 is connected to an emergency questionnaire system C11, an output of the emergency questionnaire system C11 is connected to an emergency simulation system C12, and an output of the emergency simulation system C12 is connected to an emergency assessment system C13;

the front end of the emergency simulation system C12 is connected with a virtual reality fusion module H10, one end of the virtual reality fusion module H10 is connected with a real environment acquisition unit, and the other end is connected with a virtual world construction unit;

as the output of the C10 is connected to C11, the output of the emergency questionnaire system C11 is connected to C12, and the output of the emergency simulation system C12 is connected to C13; the front end of the first-aid simulation system C12 is connected with a virtual reality fusion module H10, one end of the virtual reality fusion module H10 is connected with a real environment acquisition unit, the other end is connected with a virtual world construction unit, the basic architecture of the system is constructed by a first-aid training system, a first-aid questionnaire system, a first-aid simulation system and a first-aid examination system, wherein the first-aid simulation system mainly comprises the real environment acquisition unit and the virtual world construction unit, the construction of the first-aid simulation system is realized by the fusion of the real environment acquisition unit and the virtual world construction unit, the virtual world construction unit mainly constructs a basic environment together by the basic construction module and a 3D model base, actions, sounds and video data during the first-aid operation of a human body are recorded into the system by the acquisition of the real environment, such as audio and video acquisition, action acquisition and the like, and real data during the first-aid operation of the human body are fitted into the constructed virtual environment by the virtual reality fusion module, a simulation system suitable for emergency drilling is built, so that the drilling of repeated interaction of actions of a human body during emergency treatment can be performed, and visual system support is provided for emergency analysis.

As shown in fig. 2, the virtual world construction unit comprises a virtual foundation construction module B20 and a 3D model library B10, the virtual foundation construction module B20 and the 3D model library B10 are respectively connected with the virtual world construction module B30 in output, and the virtual world construction module B30 is connected with a virtual reality fusion module H10 in output;

the real environment acquisition unit comprises an audio acquisition system A10, a video acquisition system A20 and an action acquisition system A30, the audio acquisition system A10, the video acquisition system A20 and the action acquisition system A30 are respectively in output connection with a real environment acquisition module A40, and the real environment acquisition module A40 is in output connection with a virtual reality fusion module H10.

Due to the fact that the virtual world construction unit comprises a virtual foundation construction module B20 and a 3D model library B10, the virtual foundation construction module B20 and the 3D model library B10 are respectively connected with a virtual world construction module B30 in output, and the virtual world construction module B30 is connected with a virtual reality fusion module H10 in output; real environment acquisition unit includes audio acquisition system A10, video acquisition system A20, action acquisition system A30, audio acquisition system A10, video acquisition system A20, action acquisition system A30 output connection respectively in real environment acquisition module A40, real environment acquisition module A40 output connection fuses module H10 in virtual reality, owing to adopt virtual basis to construct module B20 and 3D model storehouse B10 and construct virtual system, through audio acquisition system A10, video acquisition system A20, relevant action when action acquisition system A30 gathers human first aid simultaneously for this system has simply, practicality, characteristics that the suitability is strong.

The motion acquisition system A30 comprises a head motion acquisition unit A301 and a waist motion acquisition unit A308;

a left shoulder motion acquisition unit A302, a left arm motion acquisition unit A303, a left hand motion acquisition unit A304, a right shoulder motion acquisition unit A305, a right arm motion acquisition unit A306 and a right hand motion acquisition unit A307;

a left thigh action acquisition unit A309, a left shank action acquisition unit A310, a left foot action acquisition unit A311, a right thigh action acquisition unit A312, a right shank action acquisition unit A313 and a right foot action acquisition unit A314;

both comprise an action acquisition unit.

The head motion acquisition unit A301 and the waist motion acquisition unit A308 included by the motion acquisition system A30 are adopted; a left shoulder motion acquisition unit A302, a left arm motion acquisition unit A303, a left hand motion acquisition unit A304, a right shoulder motion acquisition unit A305, a right arm motion acquisition unit A306 and a right hand motion acquisition unit A307; a left thigh action acquisition unit A309, a left shank action acquisition unit A310, a left foot action acquisition unit A311, a right thigh action acquisition unit A312, a right shank action acquisition unit A313 and a right foot action acquisition unit A314; all including the action acquisition unit, because the action of this system is gathered and is constituteed through the sensor unit who distributes in human different joints, its main distribution is in positions such as head, waist, left shoulder, left arm, left hand, right shoulder, right arm, right hand, left thigh, left shank, left foot, right thigh, right shank, right foot, through the sensor unit of each position evenly distributed of human body, sensor unit is including the subelement that the action was gathered simultaneously, through such specific distribution, can be more accurate with human action data acquisition, data application is more nimble.

As shown in fig. 3, the motion capture unit includes:

the output of the acceleration sensing circuit A3010 is connected to an acceleration data processor B3010, and the output of the acceleration data processor B3010 is connected to a real environment acquisition module A40;

a gyroscope sensing circuit A3020, the output of the gyroscope sensing circuit A3020 is connected to a gyroscope data processor B3020, and the output of the gyroscope data processor B3020 is connected to a real environment acquisition module A40;

the output of the magnetometer sensing circuit A3030 is connected to the magnetometer data processor B3030, and the output of the magnetometer data processor B3030 is connected to the real environment acquisition module A40.

The motion acquisition unit comprises an acceleration sensing circuit A3010, the output of the acceleration sensing circuit A3010 is connected to an acceleration data processor B3010, and the output of the acceleration data processor B3010 is connected to a real environment acquisition module A40; a gyroscope sensing circuit A3020, the output of the gyroscope sensing circuit A3020 is connected to a gyroscope data processor B3020, and the output of the gyroscope data processor B3020 is connected to a real environment acquisition module A40; the system comprises a magnetometer sensing circuit A3030, wherein the output of the magnetometer sensing circuit A3030 is connected to a magnetometer data processor B3030, the output of the magnetometer data processor B3030 is connected to a real environment acquisition module A40, each action acquisition unit of the system comprises three different types of sensors, different sensor circuits are respectively constructed according to different characteristics of the sensors, the three sensors are respectively an acceleration sensor, a gyroscope sensor and a magnetometer sensor, the three sensors are used for respectively acquiring acceleration parameters, action angle parameters and action direction parameters, and the parameters are placed in a virtual data environment, so that a simulation system is constructed.

As shown in fig. 4, the acceleration sensing circuit a3010 includes an accelerometer U3011, a positive output end of the accelerometer U3011 is connected to one end of a capacitor C3011 and one end of a resistor R3011, another end of the resistor R3011 is connected to a negative input end of an amplifier U3012, a negative output end of the accelerometer U3011, another end of the capacitor C3011, and a positive input end of the amplifier U3012 are all grounded, an output end of the amplifier U3012 is connected to one end of the capacitor C3012 and one end of the resistor R3012 in a feedback manner, another end of the capacitor C3012 and another end of the resistor R3012 are connected to a negative input end of the amplifier U3012;

the output end of the amplifier U3012 is connected to one end of a capacitor C3013, the output of the other end of the capacitor C3013 is connected to one end of a resistor R3013, the output of the other end of the resistor R3013 is connected to the negative input end of the amplifier U3013, the positive input end of the amplifier U3013 is grounded through a resistor R3015, the output end of the amplifier U3013 is connected to one end of an adjustable resistor AR3011 and one end of a capacitor C3014 in a feedback manner, two ends of the adjustable resistor AR3011 are connected to one end of the resistor R3014, and the other end of the capacitor C3014 and the other end of the resistor R3014 are connected to the negative input end of the amplifier U3012;

the adjustable end output of the amplifier U3012 is connected to one end of a resistor R3016, the other end of the resistor R3016 is connected to the adjustable end of an adjustable resistor AR3012, one end of the adjustable resistor AR3012 is connected to the positive zero point end of the amplifier U3012, and the other end of the adjustable resistor AR3012 is connected to the negative zero point end of the amplifier U3012.

The acceleration sensing circuit A3010 comprises an accelerometer U3011, the output of the positive output end of the accelerometer U3011 is connected to one end of a capacitor C3011 and one end of a resistor R3011, the output of the other end of the resistor R3011 is connected to the negative input end of an amplifier U3012, the negative output end of the accelerometer U3011, the other end of the capacitor C3011 and the positive input end of the amplifier U3012 are all grounded, the output end of the amplifier U3012 is connected to one end of the capacitor C3012 and one end of the resistor R3012 in a feedback mode, the other end of the capacitor C3012 and the other end of the resistor R3012 are connected to the negative input end of the amplifier U3012 together, the amplification factor is 1000 times due to the fact that the acceleration circuit is amplified twice, the circuit has a high-impedance common-mode rejection ratio, the secondary amplification adopts a high-precision instrument amplifier, the amplification factor is accurately adjustable, and the output precision of the circuit is high, stable and reliable.

As shown in fig. 5, the gyro sensing circuit a3020 includes a gyro U302, the gyro U302 is connected to one end of a resistor R3017, the other end of the resistor R3017 is connected to one end of a capacitor C3015, the other end of the capacitor C3015 is connected to one end of a resistor R3018 and a positive input end of an amplifier U3013, the other end of the resistor R3018 is connected to a digital ground, a negative input end of the amplifier U3013 is connected to one end of a resistor R3020, the other end of the resistor R3020 is connected to a digital ground, and an output end of the amplifier U3013 is connected to one end of the resistor R3020 through a resistor R3019;

the system ground and the digital ground of the gyro sensing circuit a3020 are isolated by the buffer U3014.

The gyroscope sensing circuit A3020 comprises a gyroscope U302, the gyroscope U302 is connected to one end of a resistor R3017, the other end of the resistor R3017 is connected to one end of a capacitor C3015, the other end of the capacitor C3015 is connected to one end of a resistor R3018 and a positive input end of an amplifier U3013, the other end of the resistor R3018 is connected to a digital ground, a negative input end of the amplifier U3013 is connected to one end of a resistor R3020, the other end of the resistor R3020 is connected to a digital ground, and an output end of the amplifier U3013 is connected to one end of the resistor R3020 through a resistor R3019; the system ground and the digital ground of the gyroscope sensing circuit A3020 are isolated by the buffer U3014, and since the gyroscope sensing circuit amplifies angle data by a 100-time amplifier and transfers the angle data to the data processor for fitting, gyroscope data is formed, and the action angles of joints of a human body are calculated to construct a human body model, and meanwhile, the isolation of the digital ground is simulated, so that the interference from the ground plane is effectively prevented.

As shown in fig. 6, the magnetometer sensor circuit a3030 includes a magnetometer integrated sensor chip U3015, one end of an IIC bus of the magnetometer integrated sensor chip U3015 is output to a corresponding port of the real environment acquisition module a40 through a resistor R3021, the other end of the IIC bus is output to a corresponding port of the real environment acquisition module a40 through a resistor R3022, a reset terminal of the magnetometer integrated sensor chip U3015 is grounded, a reset capacitor terminal of the magnetometer integrated sensor chip U3015 is grounded through a capacitor C3016, and a bypass capacitor terminal of the magnetometer integrated sensor chip U is grounded through a capacitor C3017.

Because the adoption magnetometer sensing circuit A3030 includes magnetometer integrated sensor chip U3015, the one end of the IIC bus of magnetometer integrated sensor chip U3015 is exported in the corresponding port of real environment collection module A40 through resistance R3021, and its other end exports in the corresponding port of real environment collection module A40 through resistance R3022, magnetometer integrated sensor chip U3015's the end ground that resets, its capacitance end that resets through electric capacity C3016 ground connection, its bypass capacitance end through electric capacity C3017 ground connection, because the magnetometer circuit adopts integrated chip to accomplish, simple and practical, and the direction data of collection is accurate.

As shown in fig. 7, the audio capture system a10 and the video capture system a20 include corresponding video capture units and audio capture units;

the video acquisition unit includes camera A201, camera A201 output connection is in video decoder A202, video decoder A202 output connection is in video compressor A203, video compressor A203 output connection is in video transmission module A204, video transmission module A204 output connection is in the corresponding port of audio video controller A209, audio video controller A209 output connection is in temporary storage A210 and data memory A211.

The audio frequency collection unit includes adapter A205, adapter A205 output connects in audio decoder A206, audio decoder A206 output connects in audio compressor A207, audio compressor A207 output connects in audio transmission module A208, audio transmission module A208 output connects in audio video controller A209's corresponding port, audio video controller A209 output connects in temporary storage A210 and data memory A211.

The audio acquisition system A10 and the video acquisition system A20 comprise corresponding video acquisition units and audio acquisition units, and the video acquisition units and the audio acquisition units respectively adopt linear processing, so that the circuit structure is stable and reliable.

As shown in fig. 8, the video capture unit includes a video capture circuit, the video capture circuit includes a camera a201, the output of the camera a201 is connected to a video decoding chip U2010, the data terminal of the video decoding chip U2010 is connected to the data terminal of a video compression chip U2011, the clock terminal of the video decoding chip U2010 is connected to the clock terminal of a video compression chip U2011, the sync terminal of the video decoding chip U2010 is connected to the sync terminal of the video compression chip U2011, the IIC bus of the video decoding chip U2010 is connected to one IIC bus of the video compression chip U2011, the other IIC bus of the video compression chip U2011 is connected to the IIC bus of an interface conversion chip U2012, the output of the interface conversion chip U2012 is connected to a wireless sending chip U2013, the wireless sending chip U2013 is output from a wireless receiving chip U2014, the IIC bus of the wireless receiving chip U2014 is connected to the video decompression chip U2016.

Because the video acquisition unit comprises the video acquisition circuit, the video acquisition circuit comprises a camera A201, the output of the camera A201 is connected with a video decoding chip U2010, the data end of the video decoding chip U2010 is connected with the data end of a video compression chip U2011, the clock end of the video decoding chip U2010 is connected with the clock end of a video compression chip U2011, the synchronization end of the video decoding chip U2010 is connected with the synchronization end of the video compression chip U2011, the IIC bus of the video decoding chip U2010 is connected with one IIC bus of the video compression chip U2011, the other IIC bus of the video compression chip U2011 is connected with the IIC bus of an interface conversion chip U2012, the output of the interface conversion chip U2012 is connected with the wireless sending chip U2013, and the wireless sending chip U2013 is output from a wireless receiving chip U2014, the IIC bus of the wireless receiving chip U2014 is connected to the video decompression chip U2016, and the circuit structure of video decoding, video compression and video receiving and sending is adopted in the circuit, so that the front end and the rear end are separated from each other in a centralized mode, and the practicability of video front end collection is improved.

As shown in fig. 9, the audio acquisition unit includes an audio acquisition circuit, the audio acquisition circuit includes a sound pickup a205, the output of the sound pickup a205 is connected to an audio decoding chip U1010, the data end of the audio decoding chip U1010 is connected to the data end of an audio compression chip U1011, the clock end of the audio decoding chip U1010 is connected to the clock end of the audio compression chip U1011, the synchronization end of the audio decoding chip U1010 is connected to the synchronization end of the audio compression chip U1011, the IIC bus of the audio decoding chip U1010 is connected to one IIC bus of the audio compression chip U1011, the other IIC bus of the audio compression chip U1012 is connected to the IIC bus of the interface conversion chip U1013, the output of the interface conversion chip U1012 is connected to a wireless transmitting chip U1013, and the wireless transmitting chip U1013 is output from a wireless receiving chip U1014, the IIC bus of the wireless receiving chip U1014 is connected to the video decompression chip U1016.

As the audio acquisition unit comprises an audio acquisition circuit, the audio acquisition circuit comprises a sound pickup A205, the output of the sound pickup A205 is connected with an audio decoding chip U1010, the data end of the audio decoding chip U1010 is connected with the data end of an audio compression chip U1011, the clock end of the audio decoding chip U1010 is connected with the clock end of the audio compression chip U1011, the synchronous end of the audio decoding chip U1010 is connected with the synchronous end of the audio compression chip U1011, the IIC bus of the audio decoding chip U1010 is connected with one IIC bus of the audio compression chip U1011, the other IIC bus of the audio compression chip U1012 is connected with the IIC bus of the interface conversion chip U1013, the output of the interface conversion chip U1012 is connected with the wireless sending chip U1013, and the wireless sending chip U1013 is wirelessly output from the wireless receiving chip U1014, the IIC bus of the wireless receiving chip U1014 is connected with the video decompression chip U1016, and the circuit is composed of a circuit structure of audio decoding, audio compression and audio receiving and transmitting, and meanwhile, wireless transmission is adopted at the front end of audio transmission, so that the front end acquisition and the rear end are separated from each other, and the practicability of audio front end acquisition is improved.

The working principle is as follows:

the output of the emergency training system C10 is connected with an emergency questionnaire system C11, the output of the emergency questionnaire system C11 is connected with an emergency simulation system C12, and the output of the emergency simulation system C12 is connected with an emergency assessment system C13; the front end of the emergency simulation system C12 is connected with a virtual reality fusion module H10, one end of the virtual reality fusion module H10 is connected with a real environment acquisition unit, and the other end is connected with a virtual world construction unit; as the output of the C10 is connected to C11, the output of the emergency questionnaire system C11 is connected to C12, and the output of the emergency simulation system C12 is connected to C13; the front end of the first-aid simulation system C12 is connected with a virtual reality fusion module H10, one end of the virtual reality fusion module H10 is connected with a real environment acquisition unit, the other end is connected with a virtual world construction unit, the basic architecture of the system is constructed by a first-aid training system, a first-aid questionnaire system, a first-aid simulation system and a first-aid examination system, wherein the first-aid simulation system mainly comprises the real environment acquisition unit and the virtual world construction unit, the construction of the first-aid simulation system is realized by the fusion of the real environment acquisition unit and the virtual world construction unit, the virtual world construction unit mainly constructs a basic environment together by the basic construction module and a 3D model base, actions, sounds and video data during the first-aid operation of a human body are recorded into the system by the acquisition of the real environment, such as audio and video acquisition, action acquisition and the like, and real data during the first-aid operation of the human body are fitted into the constructed virtual environment by the virtual reality fusion module, a simulation system suitable for emergency drilling is built, so that the drilling of repeated interaction of actions of a human body during emergency treatment can be performed, and visual system support is provided for emergency analysis. The virtual world construction unit comprises a virtual foundation construction module B20 and a 3D model library B10, the virtual foundation construction module B20 and the 3D model library B10 are respectively connected with a virtual world construction module B30 in output, and the virtual world construction module B30 is connected with a virtual reality fusion module H10 in output; the real environment acquisition unit comprises an audio acquisition system A10, a video acquisition system A20 and an action acquisition system A30, the audio acquisition system A10, the video acquisition system A20 and the action acquisition system A30 are respectively in output connection with a real environment acquisition module A40, and the real environment acquisition module A40 is in output connection with a virtual reality fusion module H10. Due to the fact that the virtual world construction unit comprises a virtual foundation construction module B20 and a 3D model library B10, the virtual foundation construction module B20 and the 3D model library B10 are respectively connected with a virtual world construction module B30 in output, and the virtual world construction module B30 is connected with a virtual reality fusion module H10 in output; the real environment acquisition unit comprises an audio acquisition system A10, a video acquisition system A20 and an action acquisition system A30, the audio acquisition system A10, the video acquisition system A20 and the action acquisition system A30 are respectively connected with a real environment acquisition module A40 in an output mode, the real environment acquisition module A40 is connected with a virtual reality fusion module H10 in an output mode, a virtual basis construction module B20 and A3D model base B10 are adopted to construct a virtual system, and meanwhile, the audio acquisition system A10, the video acquisition system A20 and the action acquisition system A30 are used for acquiring relevant actions of a human body during emergency treatment, so that the system has the characteristics of simplicity, practicability and strong applicability, and the problems that the prior art cannot really perform emergency drilling and cannot perform emergency analysis due to the lack of a practical and reliable real environment acquisition application system suitable for emergency training are solved by the invention, the multifunctional emergency treatment device has the advantages of repeated and interactive exercise of actions of a human body in emergency treatment, visual system support for emergency treatment analysis, simplicity, practicability and strong applicability.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.