CN104606753A - Voice-controlled breathing machine and automatic starting and stopping method thereof - Google Patents

Voice-controlled breathing machine and automatic starting and stopping method thereof Download PDF

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Publication number
CN104606753A
CN104606753A CN201510081419.9A CN201510081419A CN104606753A CN 104606753 A CN104606753 A CN 104606753A CN 201510081419 A CN201510081419 A CN 201510081419A CN 104606753 A CN104606753 A CN 104606753A
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China
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voice
module
signal
acquisition module
ventilator
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CN201510081419.9A
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Chinese (zh)
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吴光明
赵帅
吴群
史丽
胡永猛
石伟
张佳
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苏州鱼跃医疗科技有限公司
江苏鱼跃医疗设备股份有限公司
江苏鱼跃信息系统有限公司
南京鱼跃软件技术有限公司
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Priority to CN201510081419.9A priority Critical patent/CN104606753A/en
Publication of CN104606753A publication Critical patent/CN104606753A/en

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Abstract

The invention discloses a voice-controlled breathing machine and an automatic starting and stopping method thereof. The voice-controlled breathing machine comprises a voice acquisition module, the voice acquisition module comprises an extraction module and a voice recognition and analysis processing module, the extraction module is capable of receiving voice signals and extracting voice frequency, and the voice recognition and analysis processing module is used for recognizing the voice signals to generate recognizable signals. The voice acquisition module is connected with a master control module, and the master control module controls a motor drive module to drive a fan to start or stop according to information acquired by the voice acquisition module and further controls the motor drive module to drive the fan to change rotation speed according to information acquired by a signal acquisition module. The voice-controlled breathing machine and the automatic starting and stopping method thereof have the advantages of realization of automation in starting and stopping of the breathing machine under voice control, convenience in control and humanization.

Description

一种语音控制呼吸机及其自动启动停止的方法 A voice controlled automatic start and stop ventilator method

技术领域 FIELD

[0001] 本发明涉及呼吸机的技术领域,尤其涉及一种语音控制呼吸机及其自动启动停止的方法。 [0001] Technical Field The present invention relates to ventilators, more particularly to a method for voice control and stopping the ventilator automatically started.

背景技术 Background technique

[0002] 医疗科技化的发展下,人们的健康意识与卫生意识逐步增强,越来越多的人开始意识到打鼾以及呼吸暂停的危害,通过佩戴睡眠呼吸机来治疗打鼾以及睡眠呼吸暂停是目前最先进也是最科学有效的治疗手段。 [0002] Under the development of medical science and technology, people's health awareness and health consciousness gradually increased, more and more people are beginning to realize the dangers of snoring and apnea, the treatment of snoring and sleep apnea by wearing sleep apnea machine is currently suspended the most advanced and most scientific and effective treatment.

[0003] 当前睡眠呼吸机的智能化水平越来越高,人们对于家用呼吸机的人性化要求也越来越高,其中语音控制呼吸机自动启动停止的方法能够显著的提升呼吸机的智能化以及人性化。 [0003] The current level of sleep apnea intelligent machines become more sophisticated, people for humane requirements for household ventilators have become more sophisticated, in which the voice control breathing machine start and stop method can significantly enhance the intelligent automatic ventilator and humane. 传统呼吸机自动启动停止的方式是带上面罩后,呼吸几次或者用力呼吸几次,呼吸机自动开启治疗,摘下面罩一段时间后,呼吸机停止治疗。 Conventional ventilator automatic start stop fashion mask is put on after, or several breathing labored breathing times, automatically open the ventilator treatment, remove the mask for some time, the ventilator is stopped treatment. 但是有时使用者带上面罩后,并不急于开始启动治疗,如果面罩还未佩戴好,这时呼吸机已启动,调整面罩过程中会让使用者感觉不舒适。 But sometimes users face mask after take, in no hurry to start to start treatment, if the mask has not worn well, when breathing machine is powered on, the process will allow users to adjust the mask feels uncomfortable. 而采用语音就较好控制,在使用者面罩佩戴完毕并且准备入睡时再启动治疗。 The use of voice to better control the user wearing the mask is complete and ready to start treatment when sleep.

发明内容 SUMMARY

[0004] 本发明所要解决的技术问题是针对上述技术现状,而供一种能通过语音控制呼吸机自动启动停止、控制方便、人性化的呼吸机及其使用方法。 [0004] The present invention solves the technical problem of the techniques described above for the status quo, and by one kind of speech for automatic start stop control of the ventilator, easy to control, human ventilator and method of use.

[0005] 本发明解决上述技术问题所采用的技术方案为: [0005] aspect of the present invention to solve the above technical problem is:

一种语音控制呼吸机,包括面罩、呼吸管路、风机,面罩连接呼吸管路,呼吸管路上安装有流量传感器或压力传感器,流量传感器或压力传感器连接信号采集模块,信号采集模块与主控模块连接,其中:呼吸机还包括语音采集模块,语音采集模块包括能够接收语音信号并提取语音频率的提取模块,以及对语音信号进行识别从而产生可识别信号的语音识别分析处理模块,语音采集模块与主控模块连接,主控模块根据语音采集模块采集的信息控制马达驱动模块驱动风机启动或停止。 A voice controlled ventilator, including a mask, breathing circuit, fan, air tubing connected to the mask, is mounted a flow sensor or a pressure sensor, a flow sensor or a pressure sensor connected to the breathing tube path signal acquisition module, a signal acquisition module and control module connector, wherein: the ventilator further includes a voice capture module, the voice acquisition module comprises capable of receiving a voice signal and extracting extraction module voice frequencies and a speech signal recognition to generate a speech recognition analysis process module may identify a signal, the voice acquisition module and main control module is connected to the main control module drives the fan to start or stop the motor drive control module according to the information collection module of the voice.

[0006] 为优化上述技术方案,采取的具体措施还包括: [0006] In order to optimize the technical proposal, specific measures also include:

上述的主控模块根据信号采集模块采集的信息控制马达驱动模块驱动风机改变转速。 The above-described fan drive control module controls the motor to change the rotational speed of the drive module in accordance with the information signal acquisition module acquisition.

[0007] 上述的流量传感器能将呼吸管路中吸入或呼出的气体流量转换成电信号。 [0007] The flow sensor can breathing circuit inhalation or exhalation gas flows converted into an electrical signal.

[0008] 上述的压力传感器能将呼吸管路中吸入或呼出的气体压力转换成电信号。 [0008] The pressure sensor capable of inhaled or exhaled breathing circuit gas pressure into an electric signal.

[0009] 上述的语音识别分析处理模块通过A/D转换器将提取语音频率转成数字信号。 [0009] The voice recognition analysis process module extracts the voice frequency by A / D converter into digital signals.

[0010] 上述的主控模块为主控单片机。 [0010] The main control module as a master MCU.

[0011] 一种语音控制呼吸机自动启动停止的方法,包括以下步骤: [0011] A voice control method of stopping the ventilator automatically start, comprising the steps of:

步骤一、声音经过呼吸管路产生气流变化,流量传感器将气体流量转换为电信号或压力传感器将气体压力转换为电信号; Step one, the sound produced through the breathing circuit air flow variations, the flow sensor to an electric signal converted gas flow rate or a gas pressure sensor converts a pressure into an electric signal;

步骤二、电信号分为两路,一路传递至语音采集模块,另一路传递至信号采集模块; 步骤三、传递至语音采集模块的电信号经语音识别分析处理模块转成数字信号,从而得到在时间和幅度上均为离散的数字语音信号,语音采集模块将数字语音信号传送给主控丰吴块; Step two, the electrical signal is divided into two paths, passed along to the voice acquisition module, the other path is transmitted to the data acquisition module; Step three, the electrical signal is transmitted to the speech recognition by the speech analysis module acquisition module into digital signals, thereby obtaining are the amplitude and time discrete digital voice signal, the voice acquisition module transmits the digital voice signal to the main control block Feng Wu;

步骤四、主控模块中个加入语音分析处理算法对数字语音信号进行频域分析,并判断是否在语音频率范围内,如果在此范围,主控模块控制马达驱动模块运作,驱动风机按照设定的压力值启动。 Step four, the main control module to join the voice analysis on the digital speech signal processing algorithm for frequency domain analysis, and determines whether within the range of voice frequencies, if this range, the main control module controls the motor operation of the drive module, driving the fan according to the setting the pressure started.

[0012] 信号采集模块根据传来的电信号分析呼吸管路内空气流量或压力,并将分析数据传递至主控模块。 [0012] The signal acquisition module analyzes the flow rate of air pressure within the breathing circuit or an electric signal transmitted and analyze the data transmitted to the master module.

[0013] 主控模块根据信号采集模块传来的分析数据判断呼吸是否正常,并控制马达驱动模块调整风机转速进行适应。 [0013] The control module determines whether the normal breathing, and controls the motor drive module adjusts the fan speed adaptation signal acquisition module according to the analysis of data transmitted.

[0014] 语音采集模块对流量传感器或压力传感器传来的电信号进行滤波、采集,然后提取声音信号。 [0014] The voice acquisition module electrical signals coming from a flow sensor or a pressure sensor is filtered, collected, and then extract the sound signal.

[0015]与现有技术相比,本发明的呼吸机包括语音采集模块,能够接收语音信号、提取语音频率、语音识别分析,语音采集模块配合主控模块可以达到通过语音启动或停止风机的功能。 [0015] Compared with the prior art, the ventilator of the present invention includes a voice acquisition module, capable of receiving a voice signal, to extract speech frequency, the voice recognition analysis, the speech acquisition modules can be achieved by a voice control module to start or stop the function of the fan . 本发明语音信号采集的是流量传感器或压力传感器分流的信号,流量传感器负责将吸入或呼出的气体流量转换成电信号,压力传感器负责将吸入或呼出的气体压力转换成电信号。 The present invention a voice signal is acquired shunt flow sensor or a pressure sensor signal, the flow sensor is responsible for converting the inhaled or exhaled air flow into an electrical signal, a pressure sensor is responsible for inhaled or exhaled gas pressure into an electric signal. 使用时,通过语音采集模块对使用者的语音信号进行滤波、采集,然后提取声音信号,通过A/D转换器转成数字信号。 In use, the voice acquisition module by the user's speech signal is filtered, collected, and then extract the sound signal, an A / D converter into digital signals. 语音信号分析处理模块将传送过来的数字信号进行分析,并将转换完的数据传给主控单片机进行语音识别分析运算。 Digital signal processing module analyzes the speech signal transmitted from the analysis, and pass data to a host microcontroller converts End voice recognition analysis operation. 主控单片机内编写语音识别分析算法,语音信号的频谱具有非常明显的语音特征,此算法采用频域分析方法,判断是否在语音频率范围内,如果在此范围,主控模块控制马达输出电路开闭,控制风机启动与停止。 The host microcontroller prepared speech analysis algorithms, the recognition spectrum of the speech signal has a very distinct speech features, this algorithm uses the frequency domain analysis, it is determined whether or not within the range of voice frequencies, if this range, the main control module controls the motor to open the output circuit closed, control fan start and stop. 本发明还能通过信号采集模块采集的信息控制风机改变转速,实现了对风机的开启、停止和变速的多重控制。 The present invention is also the signal control information acquisition module to change the fan speed to achieve the opening of the fan, and multiple shift control stop.

附图说明 BRIEF DESCRIPTION

[0016] 图1是本发明第一实施例的结构示意图。 [0016] FIG. 1 is a schematic structural diagram of a first embodiment of the present invention.

具体实施方式 Detailed ways

[0017] 以下结合附图对本发明的实施例作进一步详细描述。 [0017] The following embodiments in conjunction with the accompanying drawings of embodiments of the present invention will be described in further detail.

[0018] 其中的附图标记为:面罩1、流量传感器2、信号采集模块3、语音采集模块4、主控模块5、马达驱动模块6、风机7、呼吸管路8。 [0018] wherein reference numerals are: 1 mask, a flow sensor 2, a signal acquisition module 3, 4 voice collecting module, control module 5, the motor drive module 6, wind turbine 7, 8 breathing circuit.

[0019] 第一实施例:如图1所示, [0019] First Embodiment: As shown in FIG 1,

一种语音控制呼吸机,包括面罩1、呼吸管路8、风机7,面罩I连接呼吸管路8,呼吸管路8上安装有流量传感器2,流量传感器2连接信号采集模块3,信号采集模块3与主控模块5连接,其中:呼吸机还包括语音采集模块4,语音采集模块4包括能够接收语音信号并提取语音频率的提取模块,以及对语音信号进行识别从而产生可识别信号的语音识别分析处理模块,语音采集模块4与主控模块5连接,主控模块5根据语音采集模块4采集的信息控制马达驱动模块6驱动风机7启动或停止。 A voice controlled ventilator, including a mask, breathing circuit 8, the fan 7, connected to the breathing mask I line 8, breathing circuit 2, the flow sensor 2 is connected to a signal acquisition module 3, the signal acquisition module is mounted on the flow rate sensor 8 3 and 5 are connected to the main control module, wherein: the ventilator further includes a voice acquisition module 4, the module 4 includes a voice collecting signal and capable of receiving a voice extraction module extracting speech frequencies and voice signals to produce a speech recognition identification signal identifying evaluation module, the voice acquisition module 4 and 5 are connected to the main control module, control module 5 controls the motor driving module according to the information acquired voice collecting module 4 7 6 to drive the fan is started or stopped.

[0020] 主控模块5根据信号采集模块3采集的信息控制马达驱动模块6驱动风机7改变转速。 [0020] The control module 5 controls the motor driver 6 drives the fan module in accordance with the information signal acquisition module 3 7 changes the rotational speed acquired.

[0021] 流量传感器2能将呼吸管路8中吸入或呼出的气体流量转换成电信号。 [0021] The flow sensor 2 can breathing circuit 8 in inhaled or exhaled gas flow into an electrical signal.

[0022] 语音识别分析处理模块通过A/D转换器将提取语音频率转成数字信号。 [0022] Speech recognition analysis process module extracts the voice frequency by A / D converter into digital signals.

[0023] 主控模块5为主控单片机。 [0023] The control module 5 host microcontroller.

[0024] 一种语音控制呼吸机自动启动停止的方法,包括以下步骤: [0024] A voice control method of stopping the ventilator automatically start, comprising the steps of:

步骤一、声音经过呼吸管路8产生气流变化,流量传感器2将气体流量转换为电信号;步骤二、电信号分为两路,一路传递至语音采集模块4,另一路传递至信号采集模块3 ;步骤三、传递至语音采集模块4的电信号经语音识别分析处理模块转成数字信号,从而得到在时间和幅度上均为离散的数字语音信号,语音采集模块4将数字语音信号传送给主控模块5 ; Step one, the sound generating an air flow through the breathing circuit 8 changes, the flow sensor 2 into an electric signal converted gas flow rate; step two, the electrical signal is divided into two paths, passed along to the voice collecting module 4, the other path is transmitted to the data acquisition module 3 ; step three, transmitting electrical signals to the voice collecting a speech recognition module evaluation module 4 is converted into a digital signal, thereby obtaining the amplitude and time are discrete digital voice signal, the voice acquisition module 4 transmits the digital voice signal to the main module 5;

步骤四、主控模块5中个加入语音分析处理算法对数字语音信号进行频域分析,并判断是否在语音频率范围内,如果在此范围,主控模块5控制马达驱动模块6运作,驱动风机7按照设定的压力值启动。 Step four, the main control module 5 to join the voice analysis on the digital speech signal processing algorithm for frequency domain analysis, and determines whether within the range of voice frequencies, if this range, the main control module 5 controls operation of the motor drive module 6, to drive fans 7 starts in accordance with the set pressure value.

[0025] 信号采集模块3根据传来的电信号分析呼吸管路8内空气流量,并将分析数据传递至主控模块5。 [0025] The signal acquisition module 8 line 3 coming from the air supply to the electric signal breath analysis, and analysis of data transmitted to the control module 5.

[0026] 主控模块5根据信号采集模块3传来的分析数据判断呼吸是否正常,并控制马达驱动模块6调整风机7转速进行适应。 [0026] The control module 5 analyzes the data transmitted from the signal acquisition module 3 determines whether the normal breathing, the motor drive control module 6 and the fan 7 to adjust the speed adaptation.

[0027] 语音采集模块4对流量传感器2传来的电信号进行滤波、采集,然后提取声音信号。 [0027] Module 4 voice collecting electrical signals coming from the flow sensor 2 is filtered, collected, and then extract the sound signal.

[0028] 本实施例的具体使用过程如下: [0028] In particular use of the present embodiment is as follows:

按图1所示组装,使用者带上面罩I,声音经过呼吸管路8产生气流变化,通过流量传感器2将气体流量转换为电信号,电信号分两路,一路被语音采集模块4采集信号,另外一路被信号采集模块3采集信号。 Press the assembly shown in Figure 1, the user bring the mask I, after a breathing sound changes in the flow line 8 is generated, converted into electrical signals, two routes gas flow by the flow sensor 2, the way the voice collecting signal acquisition module 4 , another branch of the signal acquisition module 3 is acquired signals. 语音采集模块4将采集的原始模拟语音信号变为数字信号,从而得到在时间和幅度上均为离散的数字语音信号,传送给主控单片机5,在主控单片机中个加入语音分析处理算法对数字语音信号进行频域分析,并判断是否在语音频率范围内,如果在此范围,主控模块5控制马达输出电路开闭,控制风机7按照设定的压力值启动。 Original analog speech voice signal acquisition module 4 will be collected into a digital signal, thereby obtaining the amplitude and time discrete digital voice signals are transmitted to the host microcontroller 5, in the master MCU to join the voice analysis processing algorithms digital voice signal frequency domain analysis, and determines whether within the range of voice frequencies, if this range, the main control module 5 controls the output of the motor circuit is opened and closed in accordance with the control fan 7 start pressure set value.

[0029] 第二实施例: [0029] Second Example:

将第一实施例中使用的流量传感器2变为压力传感器,使本装置由“将吸入或呼出的气体流量转换为电信号”的功能变为“将吸入或呼出的气体压力转换为电信号”,信号采集模块3采集的信号也相应变化。 Function flow sensors used in the pressure sensor 2 becomes the first embodiment, so that this device consists of "the inhaled or exhaled gas flow into an electrical signal" becomes "the inhaled or exhaled gas pressure into an electric signal." , signal acquisition module 3 the signal acquisition will change accordingly. 其余均与第一实施例相同。 The rest are the same as the first embodiment.

[0030] 以上仅是本发明的优选实施方式,本发明的保护范围并不仅局限于上述实施例,凡属于本发明思路下的技术方案均属于本发明的保护范围。 [0030] The above are only preferred embodiments of the present invention, the scope of the present invention is not limited to the above embodiments, where the aspect belonging to the idea of ​​the present invention belong to the scope of the present invention. 应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理前提下的若干改进和润饰,应视为本发明的保护范围。 It should be noted that those of ordinary skill in the art, in a number of improvements and modifications without departing from the principles of the present invention is provided, should be considered in the scope of the invention.

Claims (10)

1.一种语音控制呼吸机,包括面罩(I)、呼吸管路(8)、风机(7),所述的面罩(I)连接呼吸管路(8),所述的呼吸管路(8)上安装有流量传感器(2)或压力传感器,所述的流量传感器(2)或压力传感器连接信号采集模块(3),所述的信号采集模块(3)与主控模块(5)连接,其特征是:呼吸机还包括语音采集模块(4),所述的语音采集模块(4)包括能够接收语音信号并提取语音频率的提取模块,以及对语音信号进行识别从而产生可识别信号的语音识别分析处理模块,所述的语音采集模块(4)与主控模块(5)连接,所述的主控模块(5)根据语音采集模块(4)采集的信息控制马达驱动模块(6)驱动风机(7)启动或停止。 A voice control ventilator, comprising a face mask (I), breathing circuit (8), the fan (7), said mask (I) connected to the breathing circuit (8), the breathing circuit (8 installed) with a flow rate sensor (2) or a pressure sensor, a flow sensor (2) or a pressure sensor connected to the signal acquisition module (3), said signal acquisition module (3) and the main control module (5) is connected, characterized in that: the ventilator further includes a voice acquisition module (4), said voice acquisition module (4) capable of receiving a voice signal including voice and extracts the frequency extraction module, and the speech recognition of the speech signal to produce an identifiable signal recognition evaluation module, the voice acquisition module (4) and the main control module (5) connected to said main control module (5) controls the motor driving module according to the voice information collection module (4) acquisition (6) driving fan (7) to start or stop.
2.根据根据权利要求1所述的一种语音控制呼吸机,其特征是:所述的主控模块(5)根据信号采集模块(3)采集的信息控制马达驱动模块(6)驱动风机(7)改变转速。 2. A speech according to claim 1 to control the ventilator, characterized in that: said main control module (5) controls a motor driver information acquired module (6) to drive the fan in accordance with a signal acquisition module (3) ( 7) changing the rotational speed.
3.根据根据权利要求2所述的一种语音控制呼吸机,其特征是:所述的流量传感器(2)能将呼吸管路(8)中吸入或呼出的气体流量转换成电信号。 3. A speech according to claim 2 Ventilator, characterized in that: said flow rate sensor (2) capable of breathing circuit (8) in the exhaled air intake flow rate or conversion into an electrical signal.
4.根据根据权利要求2所述的一种语音控制呼吸机,其特征是:所述的压力传感器能将呼吸管路(8)中吸入或呼出的气体压力转换成电信号。 A speech according to claim 2 Ventilator according to claim, wherein: said pressure sensor is capable of breathing circuit (8) inhaled or exhaled gas pressure into an electric signal in.
5.根据根据权利要求2所述的一种语音控制呼吸机,其特征是:所述的语音识别分析处理模块通过A/D转换器将提取语音频率转成数字信号。 5. A voice according to claim 2 Ventilator, characterized in that: said voice recognition analysis process module extracts the voice frequency into digital signals by the A / D converter.
6.根据根据权利要求2所述的一种语音控制呼吸机,其特征是:所述的主控模块(5)为主控单片机。 A speech according to claim 2 Ventilator according to claim, wherein: said main control module (5) as the master MCU.
7.一种如权利要求1所述的语音控制呼吸机自动启动停止的方法,其特征是:包括以下步骤: 步骤一、声音经过呼吸管路(8)产生气流变化,流量传感器(2)将气体流量转换为电信号或压力传感器将气体压力转换为电信号; 步骤二、电信号分为两路,一路传递至语音采集模块(4),另一路传递至信号采集模块(3); 步骤三、传递至语音采集模块(4)的电信号经语音识别分析处理模块转成数字信号,从而得到在时间和幅度上均为离散的数字语音信号,语音采集模块(4)将数字语音信号传送给主控模块(5); 步骤四、主控模块(5)中个加入语音分析处理算法对数字语音信号进行频域分析,并判断是否在语音频率范围内,如果在此范围,主控模块(5)控制马达驱动模块(6)运作,驱动风机(7)按照设定的压力值启动。 A speech as claimed in claim 1 Ventilator automatic start stop method, which is characterized in: comprising the following steps: a sound through breathing circuit (8) to produce changes in the flow, the flow sensor (2) gas flow rate or a pressure sensor into an electric signal to convert the gas pressure into an electric signal; step two, the electrical signal is divided into two parts, one is transmitted to the voice acquisition module (4), the other path is transmitted to a signal acquisition module (3); step three transmitted to the voice collecting module (4) of the electrical signal a speech recognition evaluation module into digital signals, whereby the time and amplitude are discrete digital voice signal, the voice acquisition module (4) is transmitted to the digital voice signal master module (5); step four, the main control module (5) was added in a voice analysis of the digital voice signal processing algorithm for frequency domain analysis, and determines whether within the range of voice frequencies, if this range, the main control module ( 5) controls the motor driving module (6) into the operating, drive the fan (7) in accordance with the set pressure value starts.
8.根据权利要求7所述的语音控制呼吸机自动启动停止的方法,其特征是:信号采集模块(3)根据传来的电信号分析呼吸管路(8)内空气流量或压力,并将分析数据传递至主控模块(5)。 8. The method of claim 7 speech ventilator automatic start stop control, characterized in that: a signal acquisition module (3) (8) air flow rate or pressure in accordance with electric signals coming analysis breathing circuit, and analysis of the data transmitted to the master module (5).
9.根据权利要求8所述的语音控制呼吸机自动启动停止的方法,其特征是:所述的主控模块(5)根据信号采集模块(3)传来的分析数据判断呼吸是否正常,并控制马达驱动模块(6)调整风机(7)转速进行适应。 9. The method of claim 8 speech ventilator automatic start stop control, characterized in that: said main data analysis module (5) The signal acquisition module (3) coming from the breathing is normal is determined, and controlling the motor driving module (6) to adjust the fan (7) rotational speed adaptation.
10.根据权利要求7所述的语音控制呼吸机自动启动停止的方法,其特征是:所述的语音采集模块(4)对流量传感器(2)或压力传感器传来的电信号进行滤波、采集,然后提取声音信号。 10. The speech method according to claim 7, ventilator automatic start stop control, characterized in that: said voice acquisition module (4) of the flow rate sensor (2) or a pressure sensor electrical signal coming filtering collection and then extract the sound signal.
CN201510081419.9A 2015-02-15 2015-02-15 Voice-controlled breathing machine and automatic starting and stopping method thereof CN104606753A (en)

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