CN103961105B - A method for identifying and snoring intensity of the output of the system and a ventilator - Google Patents

A method for identifying and snoring intensity of the output of the system and a ventilator Download PDF

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CN103961105B
CN103961105B CN 201410220014 CN201410220014A CN103961105B CN 103961105 B CN103961105 B CN 103961105B CN 201410220014 CN201410220014 CN 201410220014 CN 201410220014 A CN201410220014 A CN 201410220014A CN 103961105 B CN103961105 B CN 103961105B
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snoring
step
flow
index
intensity
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CN103961105A (en )
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沈翰宁
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深圳市帝迈生物技术有限公司
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Abstract

本发明公开了一种对打鼾进行识别和强度输出的方法与系统及一种呼吸机,主要包括依次连接的呼吸流量采集器、呼吸判别器、打鼾特征判别器和打鼾强度输出器,所述呼吸流量采集器采集呼吸过程中的呼气和吸气流量发送给呼吸判别器;所述呼吸判别器用于识别呼吸周期中的吸气起始点与结束点,当检测到吸气起始点时,启动打鼾特征判别器,关闭打鼾强度输出器;当检测到吸气结束点,关闭打鼾特征判别器,启动打鼾强度输出器;所述打鼾特征判别器在吸气周期中会分析流速变化的特征,识别打鼾是否发生;所述打鼾强度输出器则是对识别出的打鼾进行判断,然后输出归一化的打鼾强度指数。 The present invention discloses a method of identifying and snoring intensity of the output of the system and a ventilator, including sequentially connected respiratory flow collector, discriminator breathing, snoring and snoring intensity feature discriminator output, said breathing flow collector collecting sending during breathing exhalation and inhalation to the respiratory flow discriminator; for determining the respiratory suction start point and end point identification breathing cycle, upon detection of the inspiratory onset, snoring start wherein discriminator, the output intensity of snoring closed; and when detecting the end point of the suction, the feature determining snoring closed, start snoring intensity output; said discriminator characterized in snoring intake cycle analyzes changes in flow velocity characteristics, identify snoring It has occurred; the output of the intensity of snoring is identified snoring judgment, and then outputs the normalized intensity of snoring index. 采用本发明提高准确判断的成功率,节省了硬件成本,降低了实现的复杂度。 According to the present invention is to improve the success rate determination accuracy, saving hardware cost, reduced implementation complexity.

Description

对打訝进行识别和强度输出的方法与系统及一种呼吸机 Rally surprised and intensity of the output of the identification system and a method ventilator

技术领域 FIELD

[0001] 本发明设及一种识别和评估方法,尤其设及的是一种对打韩进行识别和强度输出的方法与系统及一种呼吸机。 Invention is provided [0001] The present method and a method for identifying and assessing, and in particular provided is a method of identifying and sparring Han intensity of the output of the system and a ventilator.

背景技术 Background technique

[0002] 人睡觉时,枕头过高或过低或者咽喉腔受到压迫,导致进出气流受阻,容易引起打韩;头放得不正,也容易使气流出入不杨,也可致使打韩声接连不断。 [0002] When people sleep, the pillow is too high or too low, or throat cavity oppression, resulting in airflow obstruction and out, easily lead to beat South Korea; head put out of true, but also easy access to the air flow is not Yang, Han also can cause the sound to play after another . 并且任何可引起鼻、咽喉等处气道狭窄的因素都会促使打韩发生。 And any cause nose, throat, etc. airway narrowing of factors led to play Han Fasheng. 肥胖患者颈部沉积了过多的脂肪,也是引起呼吸道狭窄而出现打韩的原因之一。 Obese patients with neck excessive fat deposition, airway narrowing is caused by one of the reasons to fight the emergence of Korea. 也有些患者白天时气道无异常,睡觉时由于气道周围肌肉张力减低,加之仰邸位睡眠时舌根后坠,同样可引起气道狭窄,影响气流的顺利通过。 Also no abnormal airway during the day when some patients, the airway during sleep due to the surrounding muscle tension reduction, coupled with Yang Di-bit tongue after the fall during sleep, also can cause narrowing of the airways, affecting the smooth flow through.

[0003] 临床上,睡眠呼吸暂停综合征掲示了打韩与呼吸暂停之间存在着密切联系。 [0003] Clinically, sleep apnea syndrome kei shows there is a close link between South Korea and the fight apnea. 应用多导生理记录仪监测睡眠呼吸变化及流行病学的调查,进一步发现睡眠打韩不仅是睡眠呼吸暂停综合征的主要标志,影响患者的呼吸功能,而且与高血压病及屯、脑血管疾病的发生密切相关。 Application of multi-channel survey polygraph monitoring sleep apnea and epidemiological changes, and further found that sleep not only beat South Korea is the main sign of sleep apnea syndrome and pulmonary function in patients with hypertension and village and, cerebrovascular disease closely related to the occurrence.

[0004] 中国专利申请号为2006800025973.4的公开技术文件中,公布了一种确定对象是否在打韩的方法,该方法主要思想是根据感应垫判断对象是否在床上,采集音频信号是否有韩声,采集生理信号是否处于睡眠状态W此来综合判断对象是否打韩。 [0004] Chinese Patent Application No. disclosed in the technical documentation 2006800025973.4, published a method for determining whether an object is in the fight of Korea, the main idea is based on the method to determine whether the object sensor pad on the bed, gathering whether the audio signal has Han sound, physiological signal acquisition is in this sleep state W to determine whether the object is a comprehensive fight Han. 中国专利申请号为200780001837.6的公开技术文件中,公布了一种用于打韩检测的方法。 Chinese Patent Application No. 200780001837.6 disclosed in the technical documentation, discloses a method for playing Han detection. 该方法的主要思想是使用经过滤波的呼气噪声作为内在设备噪声的测量,并将其与经过滤波的吸气噪声进行比较运一简化方法来确定韩声的存在。 The main idea of ​​this method is the use of through exhalation inherent noise filtering apparatus as a measurement noise, and to determine its presence through the intake Han acoustic noise filtering operation compares a simplified method.

[0005] 上述现有的方法都存在一些问题或缺陷,其中第一种方法所需大量的传感器,例如感应垫传感器,目标附近的音频传感器W及检测人体生理睡眠呼吸状态的传感器,检测方法复杂,硬件成本高,并不能从引起打韩的本质上识别,准确度低。 [0005] The above-described conventional methods have some problems or defects, which required a large amount of a first method sensor, for example sensor pad sensor, an audio sensor near the target and W sensor for detecting the physiological state of sleep apnea, the detection process is complicated high hardware costs and does not lead to recognition from Korean to play in nature, and low accuracy. 第二种方法主要从韩声的检测上识别打韩,而韩声很容易受周围背景噪声干扰引起误识别或无法识别。 The second method to identify major hit from the detector Han Han sound, and Han sound very susceptible to ambient background noise caused by misidentification or unrecognized.

[0006] 因此,现有技术还有待于改进和发展。 [0006] Thus, the prior art has yet to be improved and developed.

发明内容 SUMMARY

[0007] 本发明的目的在于提供一种对打韩进行识别和强度输出的方法与系统及一种呼吸机,旨在解决现有技术存在的识别准确度低且方法复杂和硬件成本高的问题。 [0007] The object of the present invention is to provide a sparring Korea and intensity of the output of the identification system and a method ventilator, intended to address low in the prior art method of recognition accuracy and high hardware complexity and cost issues .

[000引本发明的技术方案如下: [000 cited aspect of the present invention is as follows:

[0009] -种对打韩进行识别和强度输出的方法,其包括W下步骤: [0009] - Han sparring methods to identify and output intensity, W comprising the steps of:

[0010] 步骤a:采集呼吸流量数据判断是否处于吸气状态,是则执行W下步骤,否则继续义集; [0010] Step a: collecting traffic data determines whether the respiratory state in the intake, W is performed at the step, otherwise continue to sense current;

[0011] 步骤b:获取每次呼吸周期中的吸气流量变化曲线; [0011] Step b: are obtained for each respiratory cycle variations in inspiratory flow curves;

[0012] 步骤C:计算气流受限指数衡量气道是否受阻即曲线是否具有平台型特征,有则继续W下步骤,无则继续采集呼吸流量; [0012] Step C: index calculating airflow limitation measure whether airway obstruction i.e. whether the curve characteristic having a platform type, there continues at step W, the non-respiratory flow continues to collect;

[0013] 步骤d:在气道受阻条件下,统计拐点个数即识别流量曲线是否具有银齿型特征; [0013] Step d: lower airway obstruction conditions, count the number of inflection curve i.e. whether the recognition of the flow characteristics of silver tooth;

[0014] 步骤e:对满足平台型特征和银齿型特征的流量曲线判定发生打韩; [0014] Step e: the traffic characteristics satisfy the internet type and the silver tooth curve characteristic determined that there is play Han;

[0015] 步骤f:统计一段时间内的打韩次数,计算输出打韩强度指数。 [0015] Step f: frequency of play within the statistical period Korea, Korea hit output intensity index is calculated.

[0016] 所述的对打韩进行识别和强度输出的方法,其中,具有平台型特征的流量曲线检测步骤如下: Method [0016] The identification and sparring Han output intensity, wherein the step of detecting the flow curve having a platform type characteristics are as follows:

[0017]步骤cl:获取吸气期间的流量曲线; [0017] Step cl: obtaining the flow curve during inspiration;

[0018] 步骤c2:将流量曲线归一化; [0018] Step c2: normalizing the flow curves;

[0019] 步骤c3:计算吸气流量曲线的参考幅度; [0019] Step c3: calculating a reference amplitude inspiratory flow curves;

[0020] 步骤c4:计算吸气流量曲线与参考幅度的平均偏差; [0020] Step c4: average deviation is calculated inspiratory flow profile and a reference amplitude;

[0021] 步骤c5:利用平均偏差量与参考幅度的比值作为气流受限指数气来表示道受阻的严重程度,指数越小气道受阻越严重,平台型特征越明显。 [0021] Step c5: using the average deviation ratio of the amplitude as a reference airflow limitation severity index to represent the air passage blocked, the small airways obstruction index more serious, the more significant features of the platform type.

[0022] 所述的对打韩进行识别和强度输出的方法,其中,所述参考幅度能反映流量曲线值的分布重屯、,其计算方法为: Method [0022] The identification and sparring Han output intensity, wherein the reference amplitude value that reflects the distribution of the flow curve weight Tun ,, which is calculated as:

[0023] [0023]

Figure CN103961105BD00051

[0024] 其中,Μ为参考幅度,F为流量,N为吸气时间长度且已离散化。 [0024] wherein, [mu] is a reference amplitude, F is the flow rate, N is the length of time and have discrete intake.

[0025] 所述的对打韩进行识别和强度输出的方法,其中,取吸气时间的中间部分参与平均偏差的计算,具体方法为: Method [0025] The identification and sparring Han output intensity, wherein the intermediate portion is calculated taking the time involved in inspiratory mean deviation of the specific method:

[0026] [0026]

Figure CN103961105BD00052

[0027] 其中,Offset为平均偏差,Μ为参考幅度,F为流量,Ν为吸气时间长度且已离散化。 [0027] wherein, Offset is the mean deviation, [mu] is a reference amplitude, F is the flow rate, Ν and has a length of inspiratory time discretization.

[0028] 所述的对打韩进行识别和强度输出的方法,其中,具有银齿型特征的流量曲线检测步骤如下: Method [0028] The identification and sparring Han output intensity, wherein the step of detecting the flow curve with a silver tooth characteristics are as follows:

[0029] 步骤dl:获取吸气期间的流量曲线; [0029] Step dl: obtaining the flow curve during inspiration;

[0030] 步骤d2:将流量曲线归一化; [0030] Step d2: normalizing the flow curves;

[0031] 步骤d3:计数吸气期间的拐点个数; [0031] Step d3: counting the number of inflection during inspiration;

[0032] 步骤d4:判断拐点个数是否大于设定阔值,是则判定流量曲线具有银齿型特征。 [0032] Step d4: determining whether the number of the inflection point width greater than the set value, it is determined that the flow rate curve is with a silver tooth characteristics.

[0033] 所述的对打韩进行识别和强度输出的方法,其中,计算拐点个数要将流量曲线转换成一阶差分曲线,即 The method of claim sparring [0033] Han and intensity of the output of the identification, wherein the flow curve To calculate an inflection point number is converted into a first-order differential curve, i.e.,

[0034] F'(i)=F(i+l)-F(i) 0< i <N-1 [0034] F '(i) = F (i + l) -F (i) 0 <i <N-1

[0035] 依据F/(i)过0值点判断拐点是否存在,其中F为流量,Ν为吸气时间长度且已离散化,i为时间。 [0035] The values ​​0 through points based F / (i) determining whether there is an inflection point, where F is the flow rate, inspiratory time, and the length v is discrete, i is the time.

[0036] 所述的对打韩进行识别和强度输出的方法,其中,在当且仅当流量曲线具有平台型和银齿形特征时,才评估该次吸气发生打韩的程度,并统计一段时间内的呼吸次数与打韩次数计算相应的打韩强度指数,其输出打韩强度指数的方法步骤如下: The method of identifying and sparring Han output intensity [0036] wherein, if and only if the flow curve and having a platform type silver tooth features, only to assess the extent of the play Han inhale occurs, and statistics the method of calculating the respiratory frequency and the number of the corresponding play Han Han hit strength index, output intensity index of Korea playing a period of time following step of:

[0037] 步骤efl:判断吸气流量曲线是否受阻,是则继续,否则返回; [0037] Step efl: determining whether the inspiratory flow curves blocked, is continued, otherwise;

[0038] 步骤ef 2:判断是否打韩,是则继续,否则返回; [0038] Step ef 2: determine whether or not to play Han, is continued, otherwise;

[0039] 步骤ef3:计算打韩指数,并输出; [0039] Step ef3: Han playing index calculating and outputting;

[0040] 其中,计算打韩指数的方法具体为:连续统计一段时间内的呼吸情况,并判断每一次呼吸是否存在打韩同时记录发生的呼吸次数,当统计时段范围内的一次呼吸发生了打韩,打韩动量加1,反之减1,并确保其不小于0,打韩指数可由上述两者衡量,即 [0040] wherein the method for calculating the beat Han index specifically is: continuous statistical respiration over time, and determines whether each breath whether the number of breaths play Han simultaneously record the occurrence of the presence of, as a breath has occurred play within the statistical period range Korea, Korea playing momentum plus 1, minus 1 and vice versa, and make sure it is not less than 0, the above-described playing both measured by Han index, i.e.,

[0041] [0041]

Figure CN103961105BD00061

[0042] 式中,Snorel为打韩指数,SnoreT为打韩动量,BreathN为呼吸次数,当发生连续打韩时,打韩指数会连续上升,最大至1,当每一次呼吸不存在打韩时,打韩指数会连续下降, 最小至0,连续统计一段时间内的呼吸采取的是滑动的方法,即统计每一次呼吸之后的化eathN次呼吸。 [0042] wherein, Snorel to play Korean index, SnoreT to play Han momentum, BreathN respiratory frequency when occurs continuously playing Han, playing Korean index continuously increased, up to 1, when each breath absence of play Han , will play South Korea index continued to fall to the minimum 0, continuous statistics breathing over a period of time to take a method of sliding, that statistics after each of breath eathN breaths.

[0043] 所述的对打韩进行识别和强度输出的方法,其中,计算打韩指数时加入气流受限指数和银齿形态程度作为打韩指数的权重系数,即 The method of claim sparring [0043] Han and intensity of the output of the identification, wherein, when calculating the added index hit Korean airflow limitation index as the form and degree of silver tooth play Han weighting factor index, i.e.,

[0044] [0044]

Figure CN103961105BD00062

[0045] 其中,FI为气流受限指数,TP为银齿形态程度,wl为权重函数,w2为权重函数,气流受限指数越小,权重值wl(FI)越大,成负相关;银齿形态程度越大,权重值w2(TP)越大,成正相关。 [0045] wherein, the FI is the index of airflow limitation, the extent TP silver teeth form, WL is the weight function, w2 is the weight function, the smaller the airflow limitation index, weight value (FI) larger WL, negative correlation; Silver the greater the degree of tooth shape, weight value w2 (TP) greater positive correlation.

[0046] -种对打韩进行识别和强度输出的系统,其主要包括依次连接的呼吸流量采集器、呼吸判别器、打韩特征判别器和打韩强度输出器,所述呼吸流量采集器采集呼吸过程中的呼气和吸气流量发送给呼吸判别器;所述呼吸判别器用于识别呼吸周期中的吸气起始点与结束点,当检测到吸气起始点时,启动打韩特征判别器,关闭打韩强度输出器;当检测到吸气结束点,关闭打韩特征判别器,启动打韩强度输出器;所述打韩特征判别器在吸气周期中会分析流速变化的特征,识别打韩是否发生;所述打韩强度输出器则是对识别出的打韩进行判断,然后输出归一化的打韩强度指数。 [0046] - Han sparring kind and intensity of the output of the identification system, which includes respiratory flow collector connected sequentially, respiratory discriminator, the discriminator playing and playing characteristics Han Han intensity output, said collector collecting respiratory flow during breathing exhalation and inhalation flow to a respiratory discriminator; for determination of the respiratory suction start point and end point identification breathing cycle, upon detection of the inspiratory onset, South Korea started to play feature discriminator closing playing Han intensity output; and when detecting the end point of the intake, characterized in close hit discriminator Korea, South Korea started playing intensity output; said hit discriminator Han wherein the suction cycle analyzes changes in flow velocity characteristics, identification Han hit has occurred; Han hit the intensity of the output device is hit is recognized Han judgment, and then outputs the normalized intensity index Han play.

[0047] -种呼吸机,其设置有上述的对打韩进行识别和强度输出的系统,呼吸机控制单元接收该系统的强度输出信号,调节治疗压力。 [0047] - kind of ventilator, which is provided with a system according to the identification and sparring Han output intensity, the intensity of the ventilator control unit receives the output signal of the system, the treatment pressure adjustment.

[004引本发明的有益效果:本发明通过采用一种不依赖韩声的可靠方法,消除环境噪声干扰W检测打韩是否发生,并且硬件实现方案简单,成本低廉。 [004 incorporated the beneficial effects of the present invention: by using a reliable method of the present invention is not dependent Korean sound, whether the ambient noise eliminating play Han W detection occurs, and the hardware implementation is simple, and low cost. 最后能输出打韩指数表征打韩的严重程度并为进一步治疗提供参考,例如呼吸机根据打韩指数调节输出的治疗压力等。 Finally, the output can hit play Han Han index characterizing the severity and to provide a reference for further treatment, for example treatment pressure ventilator adjusted according to the output index hit Korea.

附图说明 BRIEF DESCRIPTION

[0049] 图1是本发明提供的系统框图。 [0049] FIG. 1 is a system block diagram of the present invention is provided.

[0050] 图2是当气道杨通时,正常的吸气流量波形曲线。 [0050] FIG. 2 when the airway Tong Yang, normal inspiratory flow waveform plot.

[0051] 图3是当气道部分受阻时,具有类似平台型特征的吸气流量波形曲线。 [0051] FIG. 3 is a partial airway obstruction when having inspiratory flow waveform plot similar platforms type characteristics.

[0052] 图4是当气道受阻引起打韩时,流量上下振动形成银齿状的波形曲线。 [0052] FIG. 4 is a waveform graph when the airway obstruction caused by playing Han, vertical vibration of the flow rate of the formation of silver tooth.

[0053] 图5是计算平均偏差时,取吸气时间的中间部分的曲线图。 [0053] FIG. 5 is a calculation of the average deviation of the intermediate portion to take a graph of inspiratory time.

[0054] 图6是流量曲线转换成一阶差分曲线的示意图。 [0054] FIG. 6 is converted into a flow curves order difference curve of FIG.

[0055] 图7是打韩指数统计线图。 [0055] FIG. 7 is playing the Korean index statistics chart.

[0056] 图8是本发明提供的方法的步骤流程图。 [0056] FIG. 8 is a step of the method of the present invention provides a flow chart.

具体实施方式 Detailed ways

[0057] 为使本发明的目的、技术方案及优点更加清楚、明确,W下参照附图并举实施例对本发明进一步详细说明。 [0057] To make the objectives, technical solutions and advantages of the present invention will become more apparent, clearly, the accompanying drawings and the detailed description of the embodiments with reference to the present invention further W.

[0058] 如图1所示,本发明提供的对打韩进行识别和强度输出的系统主要是利用呼吸气体通过气道的流速变化特征作为判断依据,其系统结构主要包括依次连接的呼吸流量采集器、呼吸判别器、打韩特征判别器和打韩强度输出器。 System [0058] As shown, the present invention provides identification and sparring Han output intensity is the use of a breathing gas flow rate changing characteristics as a judgment basis of the airway, the system structure includes sequentially connected respiratory flow collection , the respiration discriminator, the discriminator playing and playing characteristics Han Han intensity output device. 所述呼吸流量采集器采集呼吸过程中的呼气和吸气流量发送给呼吸判别器;所述呼吸判别器用于识别呼吸周期中的吸气起始点与结束点,当检测到吸气起始点时,启动打韩特征判别器,关闭打韩强度输出器;当检测到吸气结束点,关闭打韩特征判别器,启动打韩强度输出器;所述打韩特征判别器在吸气周期中会分析流速变化的特征,识别打韩是否发生,包括分析气流是否受限,气流是否振动剧烈等;所述打韩强度输出器则是对识别出的打韩进行评估,判断严重程度,然后输出归一化打韩强度指数。 The collector collecting sending respiratory flow during breathing exhalation and inhalation to the respiratory flow discriminator; for determining the respiratory suction start point and end point identification breathing cycle, when detecting the start point to the intake , wherein discriminator start playing Han, Han hit off intensity output; and when detecting the end point of the intake, characterized in close hit discriminator Korea, South Korea started playing intensity output; said hit discriminator will HAN wherein the intake cycle characteristics of changes in flow velocity, whether the identification Han hit occurs, including an analysis of whether the restricted airflow, airflow if severe vibrations and the like; Han hit the intensity of the output device is hit is recognized Han assess the severity is determined, and then normalized output a dozen of Han strength index.

[0059] 本发明的判断依据在于气流通过气道时的流量变化形态,对同时具有平台型特征和银齿型特征的流量曲线判定为打韩并评估其严重程度。 [0059] According to the present invention determines the flow rate change shape when the airflow through the airway flow curves of the type having both internet features and characteristics of the silver tooth is determined to play and to assess the severity of Korea. 其识别和强度输出方法步骤为: Intensity and output method which recognizes the steps of:

[0060] 步骤a:采集呼吸流量数据判断是否处于吸气状态,是则执行W下步骤,否则继续义集; [0060] Step a: collecting traffic data determines whether the respiratory state in the intake, W is performed at the step, otherwise continue to sense current;

[0061 ]步骤b:获取每次呼吸周期中的吸气流量变化曲线; [0061] Step b: are obtained for each respiratory cycle variations in inspiratory flow curves;

[0062] 步骤C:计算气流受限指数FI衡量气道是否受阻即曲线是否具有平台型特征,有则继续W下步骤,无则继续采集呼吸流量; [0062] Step C: index FI is calculated airflow limitation measure whether airway obstruction i.e. whether the curve characteristic having a platform type, there continues at step W, the non-respiratory flow continues to collect;

[0063] 步骤d:在气道受阻条件下,统计拐点个数TP即识别流量曲线是否具有银齿型特征; [0063] Step d: lower airway obstruction conditions, the number of the inflection point TP i.e. statistical profile identifying whether the traffic characteristics silver tooth;

[0064] 步骤e:对满足平台型特征和银齿型特征的流量曲线判定发生打韩; [0064] Step e: the traffic characteristics satisfy the internet type and the silver tooth curve characteristic determined that there is play Han;

[0065] 步骤f:统计一段时间内的打韩次数,计算输出打韩强度指数Snorel。 [0065] Step f: frequency of play within the statistical period Korea, Korea beat calculating an output intensity index Snorel.

[0066] 所述呼吸判别器首先根据呼吸流量筛选出在呼吸周期中的吸气部分,由于发生打韩时,流量在吸气期间有区别于正常流量波形的明显特征。 [0066] First the respiratory discriminator filter out inspiratory portion of the breathing cycle in accordance with the respiratory flow, as occurs when the play Han, flow characteristics significantly different from the normal flow waveform during inspiration. 判断吸气呼气的临界点,可W采用流量过0值的方法,如流量由负变正判定为吸气,流量由正变负判定为呼气,也可W采用其它公知的方法。 Analyzing inhaling and exhaling of the critical point, the method can flow through W 0 value as the flow rate from negative to positive is determined intake air flow rate from positive to negative is determined breath, also other known methods can be employed W.

[0067] 所述打韩特征判别器用于记录吸气中的流量波形,并对该波形进行气流受限,振动程度的评估W判别是否存在打韩事件。 [0067] The play feature determining Han for recording the inspiratory flow waveform, and waveform of the airflow limitation, the events are playing Han W assess the vibration level determination exists. 当气道杨通时,正常的吸气流量波形曲线是一段光滑的波形,如图2所示。 When the airway Tong Yang, normal inspiratory flow waveform plot was a smooth waveform, as shown in FIG. 图中纵轴为流量归一化后的幅度,流量由上穿0值开始,下穿0值结束,中间一段具有较为光滑的钟型曲线,横轴表示吸气时间跨度。 FIG vertical axis indicates a flow rate of the normalized amplitude, the flow rate through the start value 0, the value 0 through the end of the intermediate section having a relatively smooth bell-shaped curve, the horizontal axis indicates the intake time span. 当气道杨通时,就越具有明显的钟型特征,当气道部分受阻时,就会具有类似扁平状的平台型特征,如图3所示。 When the airway Tong Yang, obviously more bell-shaped characteristic, when the partial airway obstruction, will have similar features flat platform type, as shown in FIG. 当气道受阻引起打韩时流量上下振动形成银齿状的波形曲线,如图4所示。 When the airway obstruction caused by traffic vertical vibration waveform plot playing Korea formed a silver tooth, as shown in FIG.

[0068] 其中,具有平台型特征的流量曲线检测步骤如下: [0068] wherein the step of detecting the flow curve having a platform type characteristics are as follows:

[0069] 步骤cl:获取吸气期间的流量曲线; [0069] Step cl: obtaining the flow curve during inspiration;

[0070] 步骤c2:将流量曲线归一化; [0070] Step c2: normalizing the flow curves;

[0071] 步骤c3:计算吸气流量曲线的参考幅度M; [0071] Step c3: calculate the amplitude of the reference curve M inspiratory flow;

[0072] 步骤c4:计算吸气流量曲线与参考幅度Μ的平均偏差Offset; [0072] Step c4: calculating an average inspiratory flow curves. Offset Offset Μ the reference amplitude;

[0073] 步骤c5:利用平均偏差量与参考幅度的比值作为气流受限指数气来表示道受阻的严重程度,指数越小气道受阻越严重,平台型特征越明显。 [0073] Step c5: using the average deviation ratio of the amplitude as a reference airflow limitation severity index to represent the air passage blocked, the small airways obstruction index more serious, the more significant features of the platform type.

[0074] 其中,归一化是因为具体吸气流量的幅度与持续时间并不是区别气流受限的显著特征,而只对形态特征感兴趣,即确定其是气道杨通时的钟型曲线,还是气道受阻的平台型曲线。 [0074] where, because of the magnitude of the normalized intake air flow rate and the specific time duration is not a significant difference characterized in airflow limitation, but only interested in the morphological characteristics, i.e., determines that it is a bell curve when the airway of Tong Yang , airway obstruction or curve platform. 归一化前,一种方案是对其做平滑滤波处理,消除微小的抖动,进一步使曲线光滑突出形态特征。 Before normalization, one solution is to make its smoothing processing to eliminate a slight jitter, further smooth curve protruding morphology.

[0075] 其中,参考幅度Μ能反映流量曲线值的分布重屯、,本发明提供的一种方案是计算该平均值,即 [0075] wherein the reference amplitude Μ reflect weight distribution curve values ​​Tun flow ,, the present invention provides a solution is to calculate the average value, i.e.,

[0076] [0076]

Figure CN103961105BD00081

[0077] 其中,Μ为参考幅度,F为流量,Ν为吸气时间长度,已离散化,由呼吸判别器给出。 [0077] wherein, [mu] is a reference amplitude, F is the flow rate, inspiratory time length v, discretization has been given by breathing discriminator.

[0078] 吸气流量曲线由上升阶段和下降阶段组成,取吸气时间的中间部分参与平均偏差的计算。 [0078] inspiratory flow curves by the rising and falling phases phases, the calculation of the average deviation of the intermediate portion take inspiration time participation. 其中一种方案取吸气时间二分之一的部分,并且位于中屯、,如图5中阴影部分的面积,即 One embodiment inspiration time to take one-half portion, and is located in a village ,, shaded area in FIG. 5, i.e.,

[0079] [0079]

Figure CN103961105BD00082

[0080]其中,Offset为平均偏差,Μ为参考幅度,F为流量,Ν为吸气时间长度,已离散化,由呼吸判别器给出。 [0080] wherein, Offset is the mean deviation, [mu] is a reference amplitude, F is the flow rate, inspiratory time length v, discretization has been given by breathing discriminator.

[0081] 平均偏差量与参考幅度的比值,反映了两者的偏离程度,即 [0081] The average deviation ratio of the reference amplitude, which reflects the degree of deviation between the two, i.e.,

[0082] FI=0ffset/M [0082] FI = 0ffset / M

[0083] 定义其为气流受限指数FI,气流受限指数反映了气道受阻的严重程度,FI越小气道受阻越严重。 [0083] define index FI is restricted airflow, airflow limitation index reflects the severity of the airway obstruction, the more serious the more hindered stingy FI channel.

[0084] 其中,具有银齿型特征的流量曲线检测步骤如下: [0084] wherein the step of detecting the flow curve with a silver tooth characteristics are as follows:

[0085] 步骤dl:获取吸气期间的流量曲线; [0085] Step dl: obtaining the flow curve during inspiration;

[0086] 步骤d2:将流量曲线归一化; [0086] Step d2: normalizing the flow curves;

[0087] 步骤d3:计数吸气期间的拐点个数; [0087] Step d3: counting the number of inflection during inspiration;

[0088] 步骤d4:判断拐点个数是否大于设定阔值,是则判定流量曲线具有银齿型特征。 [0088] Step d4: determining whether the number of the inflection point width greater than the set value, it is determined that the flow rate curve is with a silver tooth characteristics.

[0089] 其中,归一化是因为具体吸气流量的幅度与持续时间并不是区别气流受限的显著特征,而只对形态特征感兴趣,即确定其是气道杨通时的钟型曲线,还是气道受阻的平台型曲线。 [0089] where, because of the magnitude of the normalized intake air flow rate and the specific time duration is not a significant difference characterized in airflow limitation, but only interested in the morphological characteristics, i.e., determines that it is a bell curve when the airway of Tong Yang , airway obstruction or curve platform. 归一化前,一种方案是对其做平滑滤波处理,消除微小的抖动,使曲线光滑突出形态特征。 Before normalization, one solution is to make its smoothing processing to eliminate a slight jitter, so that a smooth curve protruding morphology.

[0090] 其中,计算拐点个数要将流量曲线转换成一阶差分曲线,即[OOW] F'(i)=F(i+l)-F(i) 0< i <N-1 [0090] wherein the flow curve To calculate an inflection point number is converted into a first-order differential curve, i.e. [OOW] F '(i) = F (i + l) -F (i) 0 <i <N-1

[0092]并依据F/(i)过0值点判断拐点是否存在,其中F为流量曲线如图6所示,统计吸气期间的拐点个数,计为TP。 [0092] and based on F / (i) through the inflection point judgment value 0 exists, where F is the flow rate curve shown in Figure 6, the number of the inflection point during the intake statistics, calculated as TP. 拐点个数TP反映了流量曲线具有银齿形态特征的程度,TP越大, 银齿形态越明显。 The number of inflection point TP reflects the extent of the flow curve has a characteristic shape of the teeth of silver, TP, the more obvious the silver tooth form. 该阔值一般不小于4时,具有较为确定的银齿形态特征。 When the width value is generally not less than 4, silver tooth morphology having more certain.

[0093] 所述打韩强度输出器在当且仅当流量曲线具有平台型和银齿形特征时,才评估该次吸气发生打韩的程度,并统计一段时间内的呼吸次数与打韩次数计算相应的打韩强度指数,其输出打韩强度指数的方法步骤如下: [0093] The intensity of the output beat in Korean if and only if the flow curve and having a platform type silver tooth features, only to assess the extent of the play Han inhale occurs, and count the number of breaths over a period of time to play Han calculating the corresponding number of hit strength index of Korea, Korea hit output intensity index method steps:

[0094] 步骤efl:判断吸气流量曲线是否受阻,是则继续,否则返回; [0094] Step efl: determining whether the inspiratory flow curves blocked, is continued, otherwise;

[0095] 步骤ef 2:判断是否打韩,是则继续,否则返回; [0095] Step ef 2: determine whether or not to play Han, is continued, otherwise;

[0096] 步骤ef 3:计算打韩指数,并输出。 [0096] Step ef 3: Calculation playing Han index, and outputs.

[0097] 其中,打韩特征判别器评估气流受限的严重程度,气流受限指数FI越小气道受阻越严重,例如选取适当的阔值可W划分为受阻或杨通状态等。 [0097] wherein, Han hit discriminator characterized assess the severity of airflow limitation, the restricted airflow path blocked stingy index FI more serious, for example, select the appropriate width W values ​​may be divided into a blocked state or the like poplar. 杨通状态说明不存在气流受限和打韩。 Yang state explained the absence of airflow limitation and playing Han. 受阻状态说明存在气流受限,可能存在打韩并需要进一步判断。 Blocked state indicating the presence of airflow limitation, and there may need to be further hit Korean judge. 当存在气流受限时,打韩特征判别器进一步判断吸气流量是否具有银齿形态特征,存在则认为该次呼吸存在打韩,否则认为该次呼吸存在气流受限。 When the presence of airflow limitation, Han hit discriminator characterized in further determines whether the intake air flow with a silver tooth morphological features, is considered to play Han the presence breaths, or that the presence of airflow limitation that breaths. 其中一种方案是连续统计一段时间内的呼吸情况,并判断每一次呼吸是否存在打韩同时记录发生的呼吸次数化eathN。 One solution is continuous statistical breathing over a period of time, and determine whether there are breathing every breath play Han also recorded the number of occurrences of eathN. 当统计时段范围内的一次呼吸发生了打韩,打韩动量SnoreT加1,反之减1,并确保其不小于0。 When the count period within the range of breath occurs Han play, playing Han momentum SnoreT plus 1, minus 1 and vice versa, and make sure it is not less than 0. 那么打韩指数Snore I可由上述两者衡量,即 Then beat South Korea Index Snore I can be both a measure of the above, namely

[009引 [009 Cited

Figure CN103961105BD00091

[0099] 当发生连续打韩时,打韩指数Snorel会连续上升,最大至1。 [0099] When the occurrence of continuous play Han, Han hit Snorel index rose continuously, up to 1. 当每一次呼吸不存在打韩时,打韩指数Snorel会连续下降,最小至0,如图7所示。 When the absence of every breath playing Korea, Korea playing Snorel index continuously decreases to a minimum 0, as shown in FIG. 同时注意的是,连续统计一段时间内的呼吸采取的是滑动的方法,即统计每一次呼吸之后的化eathN次呼吸。 Also note that the continuous statistical breathing over a period of time to take a method of sliding, that statistics after each of breath eathN breaths.

[0100] 其中,更优的一种方案是加入气流受限指数FI和银齿形态程度TP作为打韩指数Snorel的权重系数,即 [0100] wherein A better solution is to play Han added Snorel index weighting factor index FI airflow limitation and the degree of silver tooth form as TP, i.e.,

[0101] [0101]

Figure CN103961105BD00092

[0102] 气流受限指数FI越小,权重值wl(FI)越大,成负相关。 [0102] The airflow limitation smaller index FI, weight value (FI) larger wl, a negative correlation. 银齿形态程度TP越大,权重值w2(TP)越大,成正相关。 TP silver tooth form larger extent, the weight value w2 of (TP) greater positive correlation. 所W在发生打韩时,气流受限和银齿形态程度越严重,那么打韩指数Snorel也会相应的升高。 In the event of playing the Korean W, the degree of airflow limitation and silver teeth more severe form, then played Han Snorel index increased accordingly.

[0103] 权重函数wlO其中一种实现方案是将统计时间段内的FI归一化,并用1减去需要计算权重值所对应的FI。 [0103] wlO wherein the weighting function is one implementation of the count period FI normalized, and need to be calculated by subtracting a weight value corresponding to FI.

[0104] 权重函数w2〇其中一种实现方案是将统计时间段内的TP归一化,并取出需要计算权重值所对应的TP。 [0104] w2〇 wherein the weighting function is one implementation of the count period TP normalized, and remove the need to calculate the weight values ​​corresponding to the TP.

[0105] 本发明还根据W上提供的方法和系统,将其运用到一种呼吸机上,用于呼吸机治疗期间的打韩检测,所述呼吸机根据输出的打韩强度指数为患者调节最佳治疗压力。 [0105] The present invention also provides a method and system of the W, which is applied to the A breathing machine for playing period detecting Han ventilator treatment, the patient ventilator adjusted according to the best hit output intensity index Han good treatment of stress.

[0106] 相比已有的技术方案,本发明具有的优点有: [0106] compared to the prior art, the present invention has the advantage that there is:

[0107] 1、采用打韩时具有的流量特征曲线相比音频识别更能反映气道受阻的本质,且不会受到背景噪声的影响从而提高准确判断的成功率。 [0107] 1, using a flow rate characteristic curve having Korean playing audio identification compared to better reflect the nature of airway obstruction, and is not affected by background noise to improve the success rate of accurate judgments.

[0108] 2、相比音频识别需要大量的传感器,本发明主要对流量进行分析处理,节省了硬件成本,降低了实现的复杂度。 [0108] 2, compared to an audio recognition requires a lot of sensors, the present invention is mainly traffic analysis, hardware cost savings, reduced implementation complexity.

[0109] 3、利用反映打韩本质的流量曲线平台型特征和银齿型特征保证打韩事件的识别, 有效减少误识别率。 [0109] 3, using reflected essentially play Han flow curve type feature and silver platform toothed feature ensures play event recognition Korea, effectively reducing erroneous recognition rate.

[0110] 4、具有衡量打韩严重程度的打韩指数,为后续治疗提供极有价值的参考。 [0110] 4, it has a measure of the severity of the hit play Han Han index, providing valuable reference for follow-up treatment.

[0111] 应当理解的是,本发明的应用不限于上述的举例,对本领域普通技术人员来说,可W根据上述说明加W改进或变换,所有运些改进和变换都应属于本发明所附权利要求的保护范围。 [0111] It should be appreciated that the present invention is applied is not limited to the above-described example, those of ordinary skill in the art, it may be said that the above-described W W Minga improvement or change, all these modifications and variations shall transport the appended present invention the scope of the claims.

Claims (10)

  1. 1. 一种对打鼾进行识别和强度输出的方法,其特征在于,包括以下步骤: 步骤a:采集呼吸流量数据判断是否处于吸气状态,是则执行以下步骤,否则继续采集; 步骤b:获取每次呼吸周期中的吸气流量变化曲线; 步骤c:计算气流受限指数衡量气道是否受阻,是则继续以下步骤,否则继续采集呼吸流量; 步骤d:在气道受阻条件下,统计拐点个数,识别流量曲线是否为锯齿型吸气流量曲线; 步骤e:对满足平台型特征和锯齿型特征的流量曲线判定发生打鼾; 步骤f:统计一段时间内的打鼾次数,计算输出打鼾强度指数; 其中,衡量气道是否受阻的方法是检测吸气流量变化曲线是否为具有平台型特征的流量曲线。 1. A method for identifying and snoring intensity output, characterized by comprising the following steps: Step a: collecting traffic data is judged if the respiratory suction state, the following steps are then executed, otherwise, continue to collect; Step b: Get each respiratory cycle variations in inspiratory flow curves; step c: calculating a measure of whether the index airflow limitation airway obstruction, the following steps are continued, otherwise, continue to collect breath flow; step d: the airway obstruction conditions, statistical inflection number, identifying whether the flow curve sawtooth inspiratory flow curves; step e: satisfying the internet type and characteristics of the flow curve characteristic zigzag snoring determination occurs; step f: number of snoring in the statistical time period, calculating an output intensity index snore ; wherein a measure of whether the airway is blocked if the detected intake air flow rate variation profile type platform having a flow rate characteristic curve.
  2. 2. 根据权利要求1所述的对打鼾进行识别和强度输出的方法,其特征在于,具有平台型特征的流量曲线检测步骤如下: 步骤c 1:获取吸气期间的流量曲线; 步骤c2:将流量曲线归一化; 步骤c3:计算吸气流量曲线的参考幅度; 步骤c4:计算吸气流量曲线与参考幅度的平均偏差; 步骤c5:利用平均偏差量与参考幅度的比值作为气流受限指数来表示气道受阻的严重程度,指数越小气道受阻越严重,平台型特征越明显。 2. The method of identifying and snoring intensity output according to claim 1, wherein the step of detecting the flow curve having a platform type characteristics are as follows: C Step 1: Get the flow curve during inspiration; Step C2: The flow curves normalization; step c3: calculating a reference amplitude inspiratory flow curves; step c4: average deviation is calculated inspiratory flow profile and a reference amplitude; step c5: using a ratio of the average deviation of amplitude as the reference index airflow limitation to indicate the severity of the airway obstruction, the small airways obstruction index more serious, the more significant features of the platform type.
  3. 3. 根据权利要求2所述的对打鼾进行识别和强度输出的方法,其特征在于,所述参考幅度能反映流量曲线值的分布重心,其#曾t#%· 3. The method of identifying and snoring intensity output according to claim 2, wherein said amplitude reference value reflects the distribution curve of the center of gravity flow, which has # t #% ·
    Figure CN103961105BC00021
    其中,M为参考幅度,F为流量,N为吸气时间长度且已离散化。 Wherein, M being the reference amplitude, F is the flow rate, N is the length of time and have discrete intake.
  4. 4. 根据权利要求2所述的对打鼾进行识别和强度输出的方法,其特征在于,取吸气时间的中间部分参与平均偏差的计算,具体方法为: 4. A method for identifying and snoring intensity output according to claim 2, characterized in that the calculation of the average deviation of the intermediate portion of the intake take time to participate, as the specific method:
    Figure CN103961105BC00022
    其中,Of f set为平均偏差,M为参考幅度,F为流量,N为吸气时间长度且已离散化。 Wherein, Of f set for the mean deviation, M being the reference amplitude, F is the flow rate, N is the length of time and have discrete intake.
  5. 5. 根据权利要求1所述的对打鼾进行识别和强度输出的方法,其特征在于,具有锯齿型特征的流量曲线检测步骤如下: 步骤d 1:获取吸气期间的流量曲线; 步骤d2:将流量曲线归一化; 步骤d3:计数吸气期间的拐点个数; 步骤d4:判断拐点个数是否大于设定阈值,是则判定流量曲线具有锯齿型特征。 5. The method of identifying and snoring intensity output according to claim 1, wherein the step of detecting the flow curve has a sawtooth characteristics are as follows: D Step 1: Get the flow curve during inspiration; Step d2: the flow curves normalization; step d3: counting the number of inflection during inspiration; step d4: determining whether the number of the inflection point is greater than the set threshold value, it is determined that the flow curve has a sawtooth characteristics.
  6. 6. 根据权利要求5所述的对打鼾进行识别和强度输出的方法,其特征在于,计算拐点个数要将流量曲线转换成一阶差分曲线,即F/(i)=F(i+l)_F(i) 0<i<N_l 依据Fli)过O值点判断拐点是否存在,其中F为流量,N为吸气时间长度且已离散化,i 为时间。 6. The method of identifying and snoring intensity output according to claim 5, characterized in that the number of inflection To calculate the conversion curve to the first difference flow curve, i.e., F / (i) = F (i + l) _F (i) 0 <i <N_l based Fli) through the value of the point O is determined whether there is an inflection point, where F is the flow rate, N is the length of inspiratory time and have discrete, i is the time.
  7. 7. 根据权利要求1所述的对打鼾进行识别和强度输出的方法,其特征在于,在当且仅当流量曲线具有平台型和锯齿形特征时,才评估该次吸气发生打鼾的程度,并统计一段时间内的呼吸次数与打鼾次数计算相应的打鼾强度指数,其输出打鼾强度指数的方法步骤如下: 步骤efl:通过吸气流量曲线判断气道是否受阻,是则继续,否则返回; 步骤ef2:判断是否打鼾,是则继续,否则返回; 步骤ef 3:计算打鼾指数,并输出; 其中,计算打鼾指数的方法具体为:连续统计一段时间内的呼吸情况,并判断每一次呼吸是否存在打鼾同时记录发生的呼吸次数,当统计时段范围内的一次呼吸发生了打鼾,打鼾动量加1,反之减1,并确保其不小于〇,打鼾指数可由打鼾动量和呼吸次数衡量,BP 7. The method of identifying and snoring intensity output according to claim 1, wherein, if and only if the flow curve and zigzag type having a platform wherein only when the assessment of the extent of snoring occurs inhale, and counting the number of snoring and breathing frequency and corresponding calculated snore strength index over time, which method step the output intensity of snoring index is as follows: EFL steps of: if the inspiratory flow profile is determined by blocked airway, is continued, otherwise; step EF2: determining whether snoring is continued, otherwise; step ef 3: calculated snore index, and outputs; wherein the method for calculating the snore index specifically is: continuous statistical respiration over time, and is determined every breath whether there snoring occurs while recording the number of breaths, a breathing when snoring occurring within the statistical period range, snoring momentum plus 1, minus 1 and vice versa, and make sure it is not less than square, snoring index may be measured by the number of snoring and breathing momentum, BP
    Figure CN103961105BC00031
    式中,SnoreI为打鼾指数,SnoreT为打鼾动量,BreathN为呼吸次数,当发生连续打鼾时,打鼾指数会连续上升,最大至1,当每一次呼吸不存在打鼾时,打鼾指数会连续下降,最小至0,连续统计一段时间内的呼吸采取的是滑动的方法,统计每一次呼吸之后的BreathN 次呼吸。 Wherein, SnoreI as snoring index, SnoreT of snoring momentum, BreathN respiratory frequency when occurs continuously snoring, snoring index continuously increased, up to 1, every time when breathing snoring is not present, snoring index continuously decreases the minimum 0, continuous statistics breathing over a period of time to take a method of sliding, statistics every BreathN breath after breath.
  8. 8. 根据权利要求7所述的对打鼾进行识别和强度输出的方法,其特征在于,计算打鼾指数时加入气流受限指数和银齿形杰耜麼作为打鼾指教的拟重系教.即 8. The method of identifying and snoring intensity output according to claim 7, wherein airflow limitation index added Jie and toothed silver as the heavy plow it teach proposed based enlighten the calculation snoring snore index. That
    Figure CN103961105BC00032
    其中,FI为气流受限指数,TP为锯齿形态程度,wl为权重函数,w2为权重函数,气流受限指数越小,权重值Wl(FI)越大,成负相关;锯齿形态程度越大,权重值w2(TP)越大,成正相关。 Wherein, the FI is the index of airflow limitation, TP extent a zigzag form, WL is the weight function, w2 is the weight function, airflow limitation smaller the index, weight value (FI) Wl of the larger, negative correlation; the greater the degree of zigzag conformation the weight value w2 (TP) greater positive correlation.
  9. 9. 一种对打鼾进行识别和强度输出的系统,其特征在于,主要包括依次连接的呼吸流量采集器、呼吸判别器、打鼾特征判别器和打鼾强度输出器,所述呼吸流量采集器采集呼吸过程中的呼气和吸气流量发送给呼吸判别器;所述呼吸判别器用于识别呼吸周期中的吸气起始点与结束点,当检测到吸气起始点时,启动打鼾特征判别器,关闭打鼾强度输出器;当检测到吸气结束点,关闭打鼾特征判别器,启动打鼾强度输出器;所述打鼾特征判别器在吸气周期中会分析流速变化的特征,识别打鼾是否发生;所述打鼾强度输出器则是对识别出的打鼾进行判断,然后输出归一化的打鼾强度指数。 A system for identifying and snoring intensity output, wherein the collector includes a respiratory flow sequentially connected respiratory discriminator, the feature determining snoring and snoring intensity output, said collector collecting respiratory breathing flow during the inspiratory flow and expiratory breathing to a discriminator; for determining the respiratory suction start point and end point identification breathing cycle, upon detection of the inspiratory onset, characterized in snoring start discriminator, closed snoring intensity output; and when detecting the end point of the suction, the feature determining snoring closed, start snoring intensity output; said discriminator characterized in snoring intake cycle analyzes the changes in flow rate characteristic, identifying whether snoring occurs; the snoring is the intensity of the output is recognized snoring judgment, and then outputs the normalized intensity of snoring index.
  10. 10. -种呼吸机,其特征在于,设置有如权利要求9所述的对打鼾进行识别和强度输出的系统,呼吸机控制单元接收该系统的强度输出信号,调节治疗压力。 10. - kind of the ventilator, characterized in that a system like the identification and snoring intensity output according to claim 9, the ventilator control unit receives the output signal strength of the system, the treatment pressure adjustment.
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