CN203467759U - Intelligent pre-warning type protective helmet - Google Patents
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Abstract
The utility model discloses an intelligent pre-warning type protective helmet. An explosive shock wave dynamic monitoring device is arranged in the protective helmet and comprises a signal collection module, a signal amplification module, a single chip microcomputer, a storage module and a power supply module. The signal collection module comprises a plurality of piezoresistive sensors, and when a person wears the protective helmet, the piezoresistive sensors are located above the top of the brain of the person by 1-25mm. The signal amplification module comprises a plurality of amplifiers. The input ends of the amplifiers are connected with the output ends of the piezoresistive sensors in a one-to-one correspondence mode. The single chip microcomputer comprises an AD sampling module and an SPI. The output ends of the amplifiers are respectively connected with the AD sampling module. The storage module is connected with the SPI of the single chip microcomputer. The power supply module is connected with the piezoresistive sensors, the amplifiers, the single chip microcomputer and the storage module. By means of the intelligent pre-warning type protective helmet, key harmful parameters such as overpressure and positive pressure action time of a shock wave peak value of the brain area can be collected dynamically.
Description
Technical field
The utility model belongs to checkout gear, is specifically related to a kind of intelligent early warning type protective helmet.
Background technology
Since Nobel's utility model explosive, various weapons or improvised explosive devices that the explosive of take is raw material cause a tremendous loss of lives.Wherein explosion wave is to cause hindering key factor dead, disability.Look back the military conflicts such as Vietnam War in last century, the Gulf War, the war in Iraq and Afghanistan, the damage mode that all shows modern war is conflicted similar with the past, and wherein the ratio of craniocerebral trauma in battle injury is not less than 15%.Although the improvement of flak jackets greatly reduces the war death rate, the craniocerebral injury due to explosion wave is more outstanding.The modern operation helmet is as good cranium brain protective gear, can alleviate low speed shooting matter if shell fragment and specific environment high speed shooting matter are as bullet equivalent damage, but shock wave causes craniocerebral injury, still cannot protect completely.Meanwhile, under peaceful condition, extensive Urbanization Construction and subterranean resource digging, engineering explosion have also become normalization operation.Yet, regrettably, for skull brain pact ripple due to various factors, expose and still rest on the wounded and find after damage or neuropsychic symptom just passive seeking medical advice at present, seek diagnosis and treatment.As for the wounded, occur exposed by what kind of shock wave in craniocerebral injury process, especially naked eyes have no damaged but have occurred that the shock wave of functional disorders of brain exposes the wounded, how to realize the assessment of skull brain pact ripple lesion quantification and not yet cause so far concern.After war or explosion accident generation, medical institutions there is no method and obtain the cranium brain blast impulse wound data of dynamically causing injury, therefore, cannot hinder especially low-intensity, the repeated stock condition of the injury and cause injury and between pressure, make the judgement of dose-effect and time-effect relationship skull brain pact, in the judgement of the skull brain pact condition of the injury and treatment, also be difficult to realize individuation.In view of this, under flat war condition, seek on the basis of effective safeguard procedures, near " black box " imagination research and development cranium brain exposed by shock wave intensity and the frequency with the accurate evaluation wounded, for objective evaluation shock wave, cause the craniocerebral injury condition of the injury, prognosis, improve neuropsychic symptom, promote the rehabilitation of wounded's brain function to there is important diagnostic meaning.
At present, the assessment that shock wave causes craniocerebral injury relates to brain function physiological indexes and corresponding methods of marking (as Glasgow scoring).When wherein physiological function relates generally to consciousness, memory, damage extremely altered mental status and (or) kitchen range nerve damage.The wounded's main suit is sometimes more complicated and changeable compared with clinical diagnosis Indexes Abnormality, the clinical diagnostic imaging of many wounded etc. no abnormal particularly, but neuropsychic symptom has occurred and sustainable existence, the serious consequence such as even may occur self inflicted injury or hurt sb.'s feelings.Trace it to its cause, except special scenes (as the battlefield personnel casualties) etc. stimulates, think that at present main cause is the brain function pathology due to the shock wave cumulative exposure of frequent or some strength most probably.Therefore,, before clinical Brain-illness sign appears in the wounded, the intensity and the frequency that realize the exposure of dynamic monitoring skull brain pact ripple are the prerequisites that under flat war condition, skull brain pact wound is assessed and prevented and treated.Previously shock wave monitoring is main adopts import to equip, and its main limitation comprises:
(1)mainly for quasistatic facility and the fixedly explosion wave monitoring of animal;
(2)volume is bigger than normal, is difficult to carry;
(3)interference free performance a little less than;
(4)monitor explosion wave range and suffer the survival wounded skull brain pact ripple exposure thresholds of blast injury to have relatively large deviation;
(5)because injured individuality (common people, operating personnel, officers and men) suffers skull brain pact ripple when damage monitoring equipment position uncertain (whether near health, at the relative position of health).
Therefore, detecting data can have obvious numerical value bias because of shock wave and equipment intermediate medium different, is difficult to the intensity of pressure that objective reaction cranium brain place suffers.Therefore, based on above five aspect problems, consider the reality at war or construction blasting scene, dynamic monitoring skull brain pact ripple exposes and must meet the following conditions:
(1)brain protective gear-helmet can have good compatibility to monitoring device, and the helmet can hold shock wave monitoring device;
(2)the essential volume of monitoring device is small and exquisite, is easy to carry or embeds in cranium brain safeguard;
(3)can meet skull brain pact ripple under waterproof, radiation proof and particular surroundings (plateau) under water and detect demand;
(4)can bear the explosion wave of different pressures intensity in airtight and open environment;
(5)in conjunction with the past battlefield, return to officers and men's neuropsychic symptom, prompting is at present under helmet protection condition, and the low-intensity of cranium brain, high frequency time explosion wave expose more common.Therefore, equipment emphasis meets low-intensity, high frequency time shock wave monitoring requirements.
Based on above present situation, urgently research and develop at present a kind of intelligent early warning type protective helmet that can adapt to flat war operation (operation officers and men, blast working personnel, peace-keeping personnel, coal mining driving personnel).
Utility model content
The purpose of this utility model is to provide a kind of intelligent early warning type protective helmet, can realize the dynamic acquisition of the crucial injury parameters such as Lu Nao district peak value of shock wave overpressure, positive pressure time.
Intelligent early warning type protective helmet described in the utility model is provided with explosion wave dynamic monitor in protective helmet,
This explosion wave dynamic monitor comprises signal acquisition module, signal amplification module, single-chip microcomputer, memory module and supply module;
Described signal acquisition module comprises a plurality of piezoresistive transducers, the pressure signal producing for gathering shock wave, and when people puts on protective helmet, each piezoresistive transducer is positioned at people's cranium brain over top 1～25mm;
The input of a plurality of amplifiers and the output of a plurality of piezoresistive transducers connect one to one, and for the pressure signal that each piezoresistive transducer is gathered, amplify;
Described single-chip microcomputer comprises AD sampling module and SPI mouth, and the output of each amplifier is connected with AD sampling module respectively, the pressure signal of each amplifier output of sampling in turn successively;
Described memory module is connected with the SPI mouth of single-chip microcomputer, and the pressure signal of sampling is stored in memory module;
Described supply module is connected with memory module with each piezoresistive transducer, each amplifier, single-chip microcomputer respectively, for each piezoresistive transducer, each amplifier, single-chip microcomputer and memory module provide operating voltage.
Described single-chip microcomputer adopts macrocrystalline single-chip microcomputer STC15F2K60S2, the AD sampling module of this single-chip microcomputer comprises 10 ADC of eight passages, totally eight of described pressure sensors, totally eight, described amplifier, the input of the output of eight pressure sensors and eight amplifiers connects one to one, and the output of eight amplifiers connects one to one with eight passages of AD sampling module respectively.
Described pressure sensor adopts the CYY15 explosion wave pressure sensor of Xi'an De Weike instrument company; Described amplifier adopts the INA331 single supply instrument amplifier of American TI Company, and described memory module adopts SD card.
Also comprise a warning circuit, this warning circuit is connected with single-chip microcomputer, and when the force value of adopting when single-chip microcomputer surpasses the limiting pressure value of life, Single-chip Controlling warning circuit sends warning.
Described warning circuit comprises resistance R 22, triode Q2 and buzzer H, and described buzzer H is connected with the colelctor electrode of triode Q2, the grounded emitter of described triode Q2, and the base stage of described triode Q2 is connected with the P2.0 pin of single-chip microcomputer through resistance R 22.Single-chip microcomputer compares the force value of adopting and life-threatening limiting pressure value at every turn, if overstep the extreme limit force value,, by P2.0 pin output high level, makes buzzer send warning.
When people puts on this protective helmet, each piezoresistive transducer is positioned at people's cranium brain over top 1～25mm.To guarantee that monitoring device can receive shockwave signal comprehensive, in real time, while avoiding because of shock wave first by face or cranium brain occipitalia or side temples response, sensor is not placed on response district, causes that shockwave signal causes image data on the low side because of cranium brain media isolation.
The utlity model has following advantage:
(1)automatically record different explosion wave pressure peaks and pressure decay process;
(2)vibrating alarm when peak impact pressure bears threshold value over life;
(3)volume is small and exquisite, is easy to carry;
(4)when putting on protective helmet and wear, each piezoresistive transducer is just in time positioned at cranium brain over top, the intensity of pressure and action time that the data that detect can objective reaction cranium brain place be suffered;
(5)record chip and have large capacity storage and export function, the important life-informations such as storage age, blood group, physical basis situation, medical personnel's first aid while guaranteeing wounded's disturbance of consciousness;
(6)can meet the lower skull brain pact ripple of particular surroundings (plateau, under water) and detect demand;
In sum, intelligent early warning type protective helmet described in the utility model has easy to use, compatible good, cost is low, the advantage that function is strong, when shock wave exposes, can realize the dynamic acquisition of the crucial injury parameters such as Lu Nao district peak value of shock wave overpressure, positive pressure time, for the individuation assessment, diagnosis, the treatment that realize skull brain pact wound, there is significant application value.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of explosion wave dynamic monitor described in the utility model;
Fig. 2 is the circuit diagram that in the utility model, piezoresistive transducer is connected with amplifier;
Fig. 3 is the circuit diagram that in the utility model, single-chip microcomputer is connected with SD card, warning circuit;
Fig. 4 is the circuit diagram of power supply circuits in the utility model;
Fig. 5 is structural representation of the present utility model;
Fig. 6 is measurement and control software function module schematic diagram;
Fig. 7 is data processing software functional module;
Fig. 8 is data acquisition software flow chart in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Intelligent early warning type protective helmet as shown in Figures 1 to 5, in protective helmet 7, be provided with explosion wave dynamic monitor 8, this explosion wave dynamic monitor comprises signal acquisition module 1, signal amplification module 2, single-chip microcomputer 3 memory modules 4 and supply module 5.
As shown in Figure 1, Figure 2 with shown in Fig. 5, described signal acquisition module 1 comprises a plurality of piezoresistive transducers, the pressure signal producing for gathering shock wave, when people puts on protective helmet 7, each piezoresistive transducer is positioned at people's cranium brain over top 1～25mm, the intensity of pressure that the data that detect can objective reaction cranium brain place be suffered.Described pressure sensor adopts the CYY15 explosion wave pressure sensor of Xi'an De Weike instrument company, this sensor stream line style areflexia external form, without the full flush arrangement of tube chamber, low noise, high-resolution, high s/n ratio, is with interference against sunshine, band fire prevention thread-protected tube, can be used for the pressure measxurement of various explosion wave free field.Pressure measxurement range: 0～1Mpa.The taper end diameter 6mm of this piezoresistive transducer, butt diameter 12mm, the height of taper end and butt end is 10mm, the about 20g of weight.As shown in Figure 2, five lines of piezoresistive transducer output, are just being respectively power supply and ground, and difference is exported positive and negative and ground, can 5V direct current supply.Output difference divides millivolt signal, and scope is that 100mV fluctuates 30%.
As depicted in figs. 1 and 2, described signal amplification module 2 comprises a plurality of amplifiers, the quantity of described amplifier is identical with the quantity of piezoresistive transducer, the input of a plurality of amplifiers and the output of a plurality of piezoresistive transducers connect one to one, and for the pressure signal that each piezoresistive transducer is gathered, amplify; Amplifier adopts the INA331 high-performance single supply instrument amplifier of American TI Company, multiplication factor 10, and the analog signal of amplifier output is input to the AD input channel of single-chip microcomputer.
Described single-chip microcomputer 3 adopts macrocrystalline single-chip microcomputer STC15F2K60S2, this single-chip microcomputer 3 is 1 clock/machine cycle, fast 8～12 times than traditional 8051 single-chip microcomputers of speed, built-in highly reliable reset circuit, do not need external crystal-controlled oscillation, internal clocking is optional from 5MHz～35MHz, is equivalent to common 8051 single-chip microcomputer 60MHz～420MHz.The AD sampling module of this single-chip microcomputer 3 is comprised of the 10-bit high speed ADC of eight passages, therefore eight piezoresistive transducers of this device configuration, the input of the output of eight piezoresistive transducers and eight amplifiers connects one to one, and the output of eight amplifiers connects one to one with eight passages of AD sampling module respectively.The sample rate of this single-chip microcomputer 3 can reach 300KHz, and 2K byte SRAM is contained in inside, contains high speed SPI mouth.During single-chip microcomputer 3 work, system clock is set to 35MHz, utilize timer to produce the clock pulses of 80KHz, passage of each impulse sampling, 8 passages of sampling in turn successively, each passage obtains the sample rate of 10KHz, the sampling period that is equivalent to each sensor is 0.1ms, can measure blast impulse waveform completely.First AD sampled data is stored in single-chip microcomputer 3 internal SRAMs, during 1K byte of every storage, single-chip microcomputer 3 writes 1K byte in memory module 4 by SPI mouth, memory module described in the utility model 4 adopts Kingston series SD card, when data write, AD acquired data storage is in the SRAM of other 1K byte, and 2 1K byte SRAM are used in turn, can guarantee that AD uninterruptedly gathers, can guarantee again to store data and deposit in SD card.The SD card of 1G can be stored the data of 1 hour 46 minutes, according to the large capacity dynamic acquisition of blast impulse wave datum demand, adopts the large low capacity of 16G.SD card is mainly used in storing the pressure data that shock wave exposes, the frequency that positive pressure time and shock wave expose, on-the-spot Quick Acquisition and the memory that completes in real time information, simultaneously, for ensureing that medical aid needs, in memory module, store name, date of birth (or age), blood group, drug allergy history, the craniocerebral trauma history five aspect master data information of shock wave exposed personnel, the wounded that occur the disturbance of consciousness to meet can be at brief time or gold as early as possible in rescue time, the disposal that is medically treated, occurs to reduce complication; This intellectuality early warning type protective helmet is realized and is docked and transmit with the data of computer by integrated serial bus interface;
As shown in Figure 1 and Figure 4, described supply module 5 is connected with each piezoresistive transducer, each amplifier, single-chip microcomputer 3 and memory module 4 respectively, described supply module 5 adopts 7.4V chargeable lithium cell to obtain respectively 5V and 3.3V by 5V and 3.3V voltage stabilizing chip, for each piezoresistive transducer, each amplifier, single-chip microcomputer 3 and memory module 4 provide operating voltage.
As shown in Figure 1, also comprise a warning circuit 6, this warning circuit 6 is connected with single-chip microcomputer 3, and when the force value of adopting when single-chip microcomputer 8 surpasses the limiting pressure value of life, single-chip microcomputer 3 is controlled warning circuits 6 and sent warning.As shown in Figure 3, described warning circuit 6 comprises resistance R 22, triode Q2 and buzzer H, described buzzer H is connected with the colelctor electrode of triode Q2, the grounded emitter of described triode Q2, and the base stage of described triode Q2 is connected with the P2.0 pin of single-chip microcomputer through resistance R 22.3 pairs of force value of at every turn adopting of single-chip microcomputer and life-threatening limiting pressure value compare, if overstep the extreme limit force value,, by P2.0 pin output high level, make buzzer H send warning.
As shown in Figure 6, shock wave measurement and control software function module relates to the coordinating analysis operation of initialization module, selftest module, keyboard processing module, LCD MODULE, data storage and transport module and real-time communication module.
As shown in Figure 7, shock wave terminal data processing software relates to data processing module, form and printing and data management module, to realize data query, statistics and analysis, can draw pressure-time curve figure, and can complete data backup and arrangement function.
As shown in Figure 8, each hardware module and software module are integrated by coordination above, finally on terminal computer, realize skull brain pact fluctuation state intellectual monitoring, and analog-digital conversion data form completes clinical skull brain pact ripple early warning analysis and prognosis judges required critical data to deposit.
When intelligent early warning type protective helmet 8 described in the utility model can meet under flat war condition shock wave and exposes, Lu Nao district peak value of shock wave overpressure, the dynamic acquisition of the crucial injury parameters such as positive pressure time, meet transient signal digitlization at once, transfer by data at computer, analyze, the quantitative evaluation of all brain structures and functional when realizing skull brain pact ripple and causing injury, can be in military affairs or production operation in the helmet embedded wearing, effectively overcome the static state setting environmental limitations of existing shock wave pressure and time supervision, promoted accuracy and the sensitivity of explosion wave in specific cranium brain area data response, be particularly useful in identical explosion wave exposed environments, different work personnel are because of different blindages or barrier or media isolation, cause the otherness of skull brain pact wave analysis.For military conflict now, implemented under the environment of certain cranium brain protection, the general present situation that the low-intensity of the actual acceptance of cranium brain, high frequency time shock wave expose has important indication meaning and extensive promotional value, after skull brain pact ripple exposes, the objective injury parameter that obtains before clinical diagnostic imaging, the fundamental surveillance device of evaluation shock wave and cranium brain injury dose-effect and time-effect relationship.Simultaneously, in view of exposing the wounded, severe skull brain pact ripple in part there is the disturbance of consciousness, be difficult to accurately or lose the actual conditions that the essential basic vital sign information of first aid (as blood group, body weight, age, allergies etc.) is provided, in monitoring device mass memory chip, can solidify the wounded's above-mentioned essential information data, to guarantee that skull brain pact wounded first aid tries to gain time precious to one and essential information.This analytical system structural reduction, function is more complete, and cost is lower, detects data stabilization, reliable, and profile is small and exquisite, is easy to protection.Be that clinical skull brain pact is hindered irreplaceable individuation assessment apparatus in pathological diagnosis and Basic Experiment Study, there is military and civilian prospect widely.
Claims (5)
1. an intelligent early warning type protective helmet, is characterized in that: in protective helmet (7), be provided with explosion wave dynamic monitor (8),
This explosion wave dynamic monitor comprises signal acquisition module (1), signal amplification module (2), single-chip microcomputer (3), memory module (4) and supply module (5);
Described signal acquisition module (1) comprises a plurality of piezoresistive transducers, the pressure signal producing for gathering shock wave, and when people puts on protective helmet (7), each piezoresistive transducer is positioned at people's cranium brain over top 1～25mm;
Described signal amplification module (2) comprises a plurality of amplifiers, the quantity of described amplifier is identical with the quantity of piezoresistive transducer, the input of a plurality of amplifiers and the output of a plurality of piezoresistive transducers connect one to one, and for the pressure signal that each piezoresistive transducer is gathered, amplify;
Described single-chip microcomputer (3) comprises AD sampling module and SPI mouth, and the output of each amplifier is connected with AD sampling module respectively, the pressure signal of each amplifier output of sampling in turn successively;
Described memory module (4) is connected with the SPI mouth of single-chip microcomputer (3), and the pressure signal of sampling is stored in memory module (4);
Described supply module (5) is connected with each piezoresistive transducer, each amplifier, single-chip microcomputer (3) and memory module (4) respectively, for each piezoresistive transducer, each amplifier, single-chip microcomputer (3) and memory module (4) provide operating voltage.
2. intelligent early warning type protective helmet according to claim 1, it is characterized in that: described single-chip microcomputer (3) adopts macrocrystalline single-chip microcomputer STC15F2K60S2, the AD sampling module of this single-chip microcomputer (3) comprises 10 ADC of eight passages, totally eight of described pressure sensors, totally eight, described amplifier, the input of the output of eight pressure sensors and eight amplifiers connects one to one, and the output of eight amplifiers connects one to one with eight passages of AD sampling module respectively.
3. intelligent early warning type protective helmet according to claim 1, is characterized in that: described pressure sensor adopts the CYY15 explosion wave pressure sensor of Xi'an De Weike instrument company; Described amplifier adopts the INA331 single supply instrument amplifier of American TI Company, and described memory module (4) adopts SD card.
4. according to the arbitrary described intelligent early warning type protective helmet of claims 1 to 3, it is characterized in that: also comprise a warning circuit (6), this warning circuit (6) is connected with single-chip microcomputer (3), when the force value of adopting when single-chip microcomputer surpasses the limiting pressure value of life, single-chip microcomputer (3) is controlled warning circuit (6) and is sent warning.
5. intelligent early warning type protective helmet according to claim 4, it is characterized in that: described warning circuit (6) comprises resistance R 22, triode Q2 and buzzer H, described buzzer H is connected with the colelctor electrode of triode Q2, the grounded emitter of described triode Q2, the base stage of described triode Q2 is connected with the P2.0 pin of single-chip microcomputer (3) through resistance R 22.
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Cited By (7)
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| CN104720175A (en) * | 2015-04-13 | 2015-06-24 | 步向义 | Safety helmet with prompting and warning functions |
| CN105249586A (en) * | 2015-11-20 | 2016-01-20 | 怀宁县明月矿山开发有限责任公司 | Multi-functional safety helmet |
| CN105266251A (en) * | 2015-11-20 | 2016-01-27 | 怀宁县明月矿山开发有限责任公司 | Helmet |
| CN105394860A (en) * | 2015-11-20 | 2016-03-16 | 怀宁县明月矿山开发有限责任公司 | Safety wearable device |
| CN105394859A (en) * | 2015-11-20 | 2016-03-16 | 怀宁县明月矿山开发有限责任公司 | Wearable safety alarm device |
| CN106820389A (en) * | 2017-02-21 | 2017-06-13 | 中国人民解放军第三军医大学第三附属医院 | Digitlization electromagnetic pulse formula active cervical vertebra protective device |
| CN109688859A (en) * | 2016-05-20 | 2019-04-26 | Hp1科技有限公司 | For detecting the device and system of power |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104720175A (en) * | 2015-04-13 | 2015-06-24 | 步向义 | Safety helmet with prompting and warning functions |
| CN104720175B (en) * | 2015-04-13 | 2017-03-01 | 步向义 | A kind of safety helmet with prompting and warning function |
| CN105249586A (en) * | 2015-11-20 | 2016-01-20 | 怀宁县明月矿山开发有限责任公司 | Multi-functional safety helmet |
| CN105266251A (en) * | 2015-11-20 | 2016-01-27 | 怀宁县明月矿山开发有限责任公司 | Helmet |
| CN105394860A (en) * | 2015-11-20 | 2016-03-16 | 怀宁县明月矿山开发有限责任公司 | Safety wearable device |
| CN105394859A (en) * | 2015-11-20 | 2016-03-16 | 怀宁县明月矿山开发有限责任公司 | Wearable safety alarm device |
| CN109688859A (en) * | 2016-05-20 | 2019-04-26 | Hp1科技有限公司 | For detecting the device and system of power |
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