CN108236476B - Method and system for determining optimal position of fetal heart detection - Google Patents
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Abstract
本发明公开了一种胎心检测最佳位置的确定方法及系统,通过根据记录的历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定并显示本次胎心检测时多个可能存在胎心位置;然后,检测各可能存在胎心位置对应的信号;最后,根据检测到的各可能存在胎心位置对应的信号,将强度最大的信号对应的可能胎心位置确定为本次胎心检测最佳位置,并显示确定出的本次胎心检测最佳位置,从而帮助用户快速准确地确定了胎心检测最佳位置。
The invention discloses a method and a system for determining an optimal position for fetal heart rate detection. , determine and display multiple possible fetal heart positions during this fetal heart detection; then, detect the signal corresponding to each possible fetal heart position; finally, according to the detected signals corresponding to each possible fetal heart position, the maximum intensity The possible fetal heart position corresponding to the signal is determined as the best position for the current fetal heart detection, and the determined best position for the current fetal heart detection is displayed, thereby helping the user to quickly and accurately determine the best position for the fetal heart detection.
Description
技术领域technical field
本发明涉及医疗监护技术领域,尤其涉及一种胎心检测最佳位置的确定方法及系统。The invention relates to the technical field of medical monitoring, in particular to a method and a system for determining an optimal position for fetal heart rate detection.
背景技术Background technique
胎心就是胎儿的心跳,胎心监护检查是利用超声波的原理对胎儿在宫内的情况进行监测,是正确评估胎儿宫内的状况的主要检测手段。胎儿心跳受交感神经和副交感神经调节,通过信号描记瞬间的胎心变化所形成的监护图形的曲线,可以了解胎动时、宫缩时胎心的反应,以推测宫内胎儿有无缺氧。Fetal heart rate is the heartbeat of the fetus. Fetal heart rate monitoring is to use the principle of ultrasound to monitor the condition of the fetus in the uterus, and it is the main detection method to correctly assess the condition of the fetus in the uterus. The fetal heartbeat is regulated by the sympathetic and parasympathetic nerves. By tracing the curve of the monitoring graph formed by the instantaneous fetal heartbeat change, the response of the fetal heartbeat during fetal movement and uterine contraction can be understood, so as to speculate whether the fetus has hypoxia in the uterus.
胎心检查是孕检的必要程序,目前市面上出现了很多便携式家用胎心仪,使得用户可以在家庭环境中随时进行胎心监测,以判断胎儿发育是否正常。如图1所示,胎心位置x随着孕期的变化会有所不同。具体地,如图1中的a所示,为孕妇怀孕四至六个月左右的时候的胎心位置;如图1中的b所示,为孕妇怀孕六至八个月左右的时候的胎心位置;如图1中的c所示,为孕妇怀孕八至十个月左右的时候的胎心位置。缺乏专业知识经验的用户在测量时,即使花费大量时间,还是容易找不准胎心的位置。而在非胎心位置检测的胎心很可能出现胎心声音不强、曲线不正常等异常情况,导致用户误以为胎儿发育出现了异常,从而给用户造成很大的精神压力和困扰。Fetal heart rate examination is a necessary procedure for pregnancy examination. At present, there are many portable home fetal heart rate monitors on the market, allowing users to monitor fetal heart rate at any time in the home environment to determine whether the fetal development is normal. As shown in Figure 1, the fetal heart position x varies with pregnancy. Specifically, as shown in a in Figure 1, it is the fetal heart position when the pregnant woman is about four to six months pregnant; as shown in b in Figure 1, it is the fetal heart rate when the pregnant woman is about six to eight months pregnant Position; as shown in c in Figure 1, it is the fetal heart position when the pregnant woman is about eight to ten months pregnant. Even if users who lack professional knowledge and experience spend a lot of time measuring, it is easy to find the position of the fetal heart rate. The fetal heart rate detected at the non-fetal heart position is likely to have abnormal conditions such as weak fetal heart sound and abnormal curve, which may cause the user to mistakenly believe that the fetal development is abnormal, thus causing great mental stress and distress to the user.
现有技术中大都是对胎心仪的结构或检测胎心的方法进行改进,并未涉及帮助用户快速准确地找到胎心检测最佳位置的方法,因此,如何帮助用户快速准确地确定胎心检测最佳位置是目前亟需解决的技术问题。Most of the prior art is to improve the structure of the fetal heart rate monitor or the method for detecting the fetal heart rate, and does not involve a method for helping the user to quickly and accurately find the best position for detecting the fetal heart rate. Therefore, how to help the user to quickly and accurately determine the fetal heart rate Detecting the best position is a technical problem that needs to be solved urgently.
发明内容SUMMARY OF THE INVENTION
本发明实施例提供一种胎心检测最佳位置的确定方法及系统,用以解决现有技术中存在的如何帮助用户快速准确地确定胎心检测最佳位置的问题。Embodiments of the present invention provide a method and system for determining the optimal position for fetal heart rate detection, which are used to solve the problem of how to help users quickly and accurately determine the optimal position for fetal heart rate detection in the prior art.
本发明实施例提供一种胎心检测最佳位置的确定方法,包括:An embodiment of the present invention provides a method for determining an optimal position for fetal heart rate detection, including:
根据记录的历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定并显示本次胎心检测时多个可能存在胎心位置;Determine and display multiple possible fetal heart positions during this fetal heart detection according to the best position of fetal heart detection determined in any of the previous fetal heart detections and the gestational age and abdominal circumference at the current fetal heart detection;
检测各所述可能存在胎心位置对应的信号;Detecting the signal corresponding to each of the possible fetal heart positions;
根据检测到的各所述可能存在胎心位置对应的信号,将强度最大的信号对应的可能胎心位置确定为本次胎心检测最佳位置,并显示确定出的所述本次胎心检测最佳位置。According to the detected signals corresponding to the possible fetal heart positions, the possible fetal heart position corresponding to the signal with the highest intensity is determined as the best position for this fetal heart detection, and the determined fetal heart detection is displayed. Best location.
在一种可能的实现方式中,在本发明实施例提供的上述确定方法中,所述根据记录的历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定本次胎心检测时多个可能存在胎心位置,具体包括:In a possible implementation manner, in the above-mentioned determination method provided in the embodiment of the present invention, the optimal position for fetal heart rate detection determined according to any one of the previous fetal heart rate detections recorded and the pregnancy rate at the current fetal heart rate detection Week and abdominal circumference to determine multiple possible fetal heart locations during this fetal heart test, including:
根据历次胎心检测中任一次确定的胎心检测最佳位置,所述任一次确定的胎心检测最佳位置对应的孕周和腹围,以及本次胎心检测时的孕周和腹围,构建两次胎心检测之间的模拟胎儿发育的关联球体模型;According to the best position for fetal heart rate detection determined at any one time in the previous fetal heart rate detection, the gestational age and abdominal circumference corresponding to the best position for fetal heart rate detection determined at any one time, and the gestational age and abdominal circumference during the current fetal heart rate detection , to build a correlation spheroid model that simulates fetal development between two fetal heart tests;
根据所述任一次确定的胎心检测最佳位置,以及构建出的所述两次胎心检测之间的模拟胎儿发育的关联球体模型,确定多个可能存在胎心位置。According to the optimal fetal heart detection position determined at any one time, and the constructed correlation spheroid model for simulating fetal development between the two fetal heart detection detections, a plurality of possible fetal heart positions are determined.
在一种可能的实现方式中,在本发明实施例提供的上述确定方法中,所述根据历次胎心检测中任一次确定的胎心检测最佳位置,所述任一次确定的胎心检测最佳位置对应的孕周和腹围,以及本次胎心检测时的孕周和腹围,构建两次胎心检测之间的模拟胎儿发育的关联球体模型,具体包括:In a possible implementation manner, in the above-mentioned determination method provided by the embodiment of the present invention, the optimal position for fetal heart rate detection determined according to any one of previous fetal heart rate detections, the fetal heart rate detection determined at any one time is the most optimal position for fetal heart rate detection. The gestational age and abdominal circumference corresponding to the optimal position, as well as the gestational age and abdominal circumference at the time of the fetal heart rate detection, are used to construct an associated spheroid model that simulates fetal development between the two fetal heart rate detections, including:
根据任一次胎心检测时的孕周和腹围,确定所述任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径;According to the gestational age and abdominal circumference during any one fetal heart detection, determine the spherical radius of the spheroid model corresponding to the simulated fetal development during any one fetal heart detection;
根据本次胎心检测时的孕周和腹围,确定本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径;According to the gestational age and abdominal circumference during this fetal heart detection, determine the sphere radius of the sphere model corresponding to the simulated fetal development during this fetal heart detection;
根据两次胎心检测时的孕周,确定所述任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离;According to the gestational age during the two fetal heartbeat detections, determine the distance between the spherical centers of the spherical model simulating fetal development corresponding to the fetal heartbeat detection at any one time and the fetal heart detection at this time;
根据确定出的两次胎心检测时分别对应的模拟胎儿发育的球体模型的球体半径,以及所述任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离,构建出具有相同切面的所述两次胎心检测之间的模拟胎儿发育的关联球体模型。According to the determined spheroid radius of the spheroid model simulating fetal development corresponding to the two fetal heart detections, and the spheres of the spheroid model simulating fetal development respectively corresponding to any one fetal heart detection and this fetal heart detection The distance between the hearts is used to construct a correlative spheroid model simulating fetal development between the two fetal heart detections with the same section.
在一种可能的实现方式中,在本发明实施例提供的上述确定方法中,所述根据所述任一次确定的胎心检测最佳位置,以及构建出的所述两次胎心检测之间的模拟胎儿发育的关联球体模型,确定多个可能存在胎心位置,具体包括:In a possible implementation manner, in the above determination method provided by the embodiment of the present invention, the optimal position for fetal heart rate detection determined according to any one time, and the constructed interval between the two fetal heart rate detections A correlative spheroid model that simulates fetal development and determines multiple possible fetal heart locations, including:
根据确定出的所述任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径,本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径,以及所述任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离,确定本次胎心检测时的胎心位置相对于所述任一次确定的胎心检测最佳位置的偏移量;According to the determined spheroid radius of the spheroid model for simulating fetal development during any one time of fetal heart detection, the spheroid radius of the spheroid model for simulating fetal development during the current fetal heart detection, and The distance between the spherical centers of the spheroid model that simulates fetal development at the time of the fetal heart rate detection and the fetal heart rate detection time respectively, and the fetal heart rate position during this fetal heart rate detection is determined relative to the optimal position of the fetal heart rate detection determined in any one time. the offset;
以所述任一次确定的胎心检测最佳位置为顶点,以确定出的所述偏移量为半径,确定顶角为90度的扇形区域,且所述扇形区域的圆弧的中点位于所述任一次确定的胎心检测最佳位置的正下方;Taking the determined optimal position of fetal heart rate detection as the vertex, the determined offset is the radius, and the vertex angle is determined to be a fan-shaped area of 90 degrees, and the midpoint of the arc of the fan-shaped area is located at Right below the best position for fetal heart rate detection determined at any one time;
将所述扇形区域边界确定为多个可能存在胎心的位置。The sector-shaped area boundary is determined as a plurality of positions where the fetal heart may exist.
在一种可能的实现方式中,在本发明实施例提供的上述确定方法中,所述检测各所述可能存在胎心位置对应的信号,具体包括:In a possible implementation manner, in the above determination method provided by the embodiment of the present invention, the detecting a signal corresponding to each of the possible fetal heart positions specifically includes:
采用麦克风阵列同时检测各所述可能存在胎心位置对应的声音信号。A microphone array is used to simultaneously detect the sound signal corresponding to each of the possible fetal heart positions.
在一种可能的实现方式中,在本发明实施例提供的上述确定方法中,在根据检测到的各所述可能存在胎心位置对应的信号,将强度最大的信号对应的可能胎心位置确定为本次胎心检测最佳位置之前,还包括:In a possible implementation manner, in the above determination method provided by the embodiment of the present invention, according to the detected signals corresponding to each of the possible fetal heart positions, the possible fetal heart position corresponding to the signal with the highest intensity is determined Before the best position for this fetal heart rate detection, it also includes:
过滤采用麦克风阵列同时检测到的各所述可能存在胎心位置对应的声音信号中的环境噪音和母体心跳声音。Filter the ambient noise and maternal heartbeat sound in each of the sound signals corresponding to the position of the fetal heart that are detected simultaneously by the microphone array.
在一种可能的实现方式中,在本发明实施例提供的上述确定方法中,所述检测各所述可能存在胎心位置对应的信号,具体包括:In a possible implementation manner, in the above determination method provided by the embodiment of the present invention, the detecting a signal corresponding to each of the possible fetal heart positions specifically includes:
采用胎心仪依次检测各所述可能存在胎心位置对应的胎心信号。The fetal heart rate signal corresponding to each of the possible fetal heart positions is sequentially detected by the fetal heart rate instrument.
在一种可能的实现方式中,在本发明实施例提供的上述确定方法中,还包括:In a possible implementation manner, the above determination method provided by the embodiment of the present invention further includes:
根据显示出的确定出的所述本次胎心检测最佳位置,采用胎心仪测量所述本次胎心检测最佳位置的胎心值。According to the displayed and determined optimal position for the current fetal heart rate detection, a fetal heart rate meter is used to measure the fetal heart rate value of the current fetal heart rate detection optimal position.
在一种可能的实现方式中,在本发明实施例提供的上述确定方法中,还包括:In a possible implementation manner, the above determination method provided by the embodiment of the present invention further includes:
在采用麦克风阵列同时检测到的各所述可能存在胎心位置对应的声音信号中,确定强度最大的声音信号和强度最小的声音信号;Among the sound signals corresponding to each of the possible fetal heart positions detected simultaneously by the microphone array, determine the sound signal with the largest intensity and the sound signal with the smallest intensity;
将所述强度最大的声音信号与所述强度最小的声音信号的差值确定为胎心信号;determining the difference between the sound signal with the highest intensity and the sound signal with the smallest intensity as the fetal heart signal;
将所述胎心信号平方后确定出的两个相邻极大值之间的时间差的倒数确定为所述本次胎心检测最佳位置的胎心值。The reciprocal of the time difference between two adjacent maximum values determined after the square of the fetal heart rate signal is determined as the fetal heart rate value at the optimal position of the current fetal heart rate detection.
本发明实施例还提供了的一种胎心监测最佳位置的确定系统,包括:The embodiment of the present invention also provides a system for determining the optimal position of fetal heart rate monitoring, including:
处理器,用于根据记录的历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定本次检测时多个可能存在胎心位置;根据检测到的各所述可能存在胎心位置对应的信号,将强度最大的信号对应的可能胎心位置确定为本次胎心检测最佳位置;The processor is configured to determine a plurality of possible fetal heart positions during this detection according to the best position for fetal heart detection determined at any one of the recorded previous fetal heart detections and the gestational age and abdominal circumference during the current fetal heart detection; According to the detected signals corresponding to each of the possible fetal heart positions, the possible fetal heart position corresponding to the signal with the highest intensity is determined as the best position for this fetal heart detection;
检测器,用于检测各所述可能存在胎心位置对应的信号;a detector, used for detecting the signal corresponding to each of the possible fetal heart positions;
显示器,用于显示本次检测时多个可能存在胎心位置,以及显示确定出的所述本次胎心检测最佳位置。The display is used for displaying a plurality of possible fetal heart positions during the current detection, and displaying the determined optimal position for the current fetal heart detection.
在一种可能的实现方式中,在本发明实施例提供的上述确定系统中,所述处理器,具体用于根据历次胎心检测中任一次确定的胎心检测最佳位置,所述任一次确定的胎心检测最佳位置对应的孕周和腹围,以及本次胎心检测时的孕周和腹围,构建两次胎心检测之间的模拟胎儿发育的关联球体模型;根据所述任一次确定的胎心检测最佳位置,以及构建出的所述两次胎心检测之间的模拟胎儿发育的关联球体模型,确定多个可能存在胎心位置。In a possible implementation manner, in the above-mentioned determination system provided by the embodiment of the present invention, the processor is specifically configured to determine the best position for fetal heart rate detection according to any one of previous fetal heart rate detections, and the any one The gestational age and abdominal circumference corresponding to the determined optimal position of fetal heart rate detection, as well as the gestational age and abdominal circumference at the time of this fetal heart rate detection, are used to construct an associated spheroid model for simulating fetal development between two fetal heart rate detections; The best position for fetal heart rate detection determined at any one time, and the constructed correlation spheroid model for simulating fetal development between the two fetal heart rate detections, determine a plurality of possible fetal heart positions.
在一种可能的实现方式中,在本发明实施例提供的上述确定系统中,所述处理器,具体用于根据任一次胎心检测时的孕周和腹围,确定所述任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径;根据本次胎心检测时的孕周和腹围,确定本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径;根据两次胎心检测时的孕周,确定所述任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离;根据确定出的两次胎心检测时分别对应的模拟胎儿发育的球体模型的球体半径,以及所述任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离,构建出具有相同切面的所述两次胎心检测之间的模拟胎儿发育的关联球体模型。In a possible implementation manner, in the above-mentioned determination system provided by the embodiment of the present invention, the processor is specifically configured to determine the fetal heart rate at any one time according to the gestational age and abdominal circumference at any one time of fetal heart rate detection The spheroid radius of the spheroid model corresponding to simulating fetal development during detection; according to the gestational age and abdominal circumference during this fetal heart detection, determine the spheroid radius of the spheroid model corresponding to simulating fetal development during this fetal heart detection; The gestational age when the fetal heart rate is detected, determine the distance between the spherical centers of the spheroid models simulating fetal development that correspond to each of the fetal heart rate detections and the current fetal heart rate detection; The spheroid radius of the spheroid model simulating fetal development corresponding to each time, and the distance between the spheroid centers of the spheroid model simulating fetal development corresponding to any one of the fetal heart detection and this fetal heart detection, respectively. A correlative spheroid model simulating fetal development between the two fetal heart rate measurements of the same slice.
在一种可能的实现方式中,在本发明实施例提供的上述确定系统中,所述处理器,具体用于根据确定出的所述任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径,本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径,以及所述任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离,确定本次胎心检测时的胎心位置相对于所述任一次确定的胎心检测最佳位置的偏移量;以所述任一次确定的胎心检测最佳位置为顶点,以确定出的所述偏移量为半径,确定顶角为90度的扇形区域,且所述扇形区域的圆弧的中点位于所述任一次确定的胎心检测最佳位置的正下方;将所述扇形区域边界确定为多个可能存在胎心的位置。In a possible implementation manner, in the above-mentioned determination system provided by the embodiment of the present invention, the processor is specifically configured to determine according to the determined spheroid model of fetal development corresponding to any one of the fetal heart detections. Sphere radius, the sphere radius of the sphere model simulating fetal development corresponding to this fetal heart detection, and the difference between the sphere centers of the sphere model simulating fetal development corresponding to any fetal heart detection and this fetal heart detection. The distance between the two, determine the offset of the fetal heart position during the current fetal heart detection relative to the optimal position of the fetal heart detection determined at any time; taking the optimal fetal heart detection position determined at any time as the vertex, The determined offset is a radius, a fan-shaped area with an apex angle of 90 degrees is determined, and the midpoint of the arc of the fan-shaped area is located just below the optimal position for fetal heart rate detection determined at any one time; The sector-shaped area boundary is determined as a plurality of positions where the fetal heart may exist.
在一种可能的实现方式中,在本发明实施例提供的上述确定系统中,所述检测器可以是能够同时检测至少两个位置或多个位置的胎心信号的检测器,例如为麦克风阵列,用于同时检测至少两个位置或多个位置的胎心信号,例如,各所述可能存在胎心位置对应的声音信号。In a possible implementation manner, in the above-mentioned determination system provided in the embodiment of the present invention, the detector may be a detector capable of simultaneously detecting fetal heart signals at at least two positions or multiple positions, such as a microphone array , for simultaneously detecting fetal heart signals in at least two positions or multiple positions, for example, each of the possible sound signals corresponding to the fetal heart positions exists.
在一种可能的实现方式中,在本发明实施例提供的上述确定系统中,所述处理器,还用于过滤采用麦克风阵列同时检测到的各所述可能存在胎心位置对应的声音信号中的环境噪音和母体心跳声音。In a possible implementation manner, in the above-mentioned determination system provided by the embodiment of the present invention, the processor is further configured to filter the sound signals corresponding to each of the possible fetal heart positions detected simultaneously by using a microphone array of ambient noise and maternal heartbeat sounds.
在一种可能的实现方式中,在本发明实施例提供的上述确定系统中,所述检测器为胎心仪,具体用于依次检测各所述可能存在胎心位置对应的胎心信号。In a possible implementation manner, in the above-mentioned determination system provided by the embodiment of the present invention, the detector is a fetal heart rate monitor, which is specifically configured to sequentially detect the fetal heart rate signals corresponding to each of the possible fetal heart positions.
在一种可能的实现方式中,在本发明实施例提供的上述确定系统中,还包括:胎心仪,用于根据显示出的确定出的所述本次胎心检测最佳位置,测量所述本次胎心检测最佳位置的胎心值。In a possible implementation manner, the above-mentioned determination system provided in the embodiment of the present invention further includes: a fetal heart rate meter, configured to measure the optimal position of the fetal heart rate detection this time according to the displayed determined optimal position. Describe the fetal heart rate value at the best position for this fetal heart rate detection.
在一种可能的实现方式中,在本发明实施例提供的上述确定系统中,所述处理器,还用于在采用麦克风阵列同时检测到的各所述可能存在胎心位置对应的声音信号中,确定强度最大的声音信号和强度最小的声音信号;将所述强度最大的声音信号与所述强度最小的声音信号的差值确定为胎心信号;将所述胎心信号平方后确定出的两个相邻极大值之间的时间差的倒数确定为所述本次胎心检测最佳位置的胎心值。In a possible implementation manner, in the above-mentioned determination system provided by the embodiment of the present invention, the processor is further configured to use the microphone array to detect the sound signal corresponding to each of the possible fetal heart positions simultaneously , determine the sound signal with the largest intensity and the sound signal with the smallest intensity; determine the difference between the sound signal with the largest intensity and the sound signal with the smallest intensity as the fetal heart signal; The reciprocal of the time difference between two adjacent maximum values is determined as the fetal heart rate value at the optimal position of the current fetal heart rate detection.
本发明有益效果如下:The beneficial effects of the present invention are as follows:
本发明实施例提供的一种胎心检测最佳位置的确定方法及系统,包括:根据记录的历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定并显示本次胎心检测时多个可能存在胎心位置;检测各可能存在胎心位置对应的信号;根据检测到的各可能存在胎心位置对应的信号,将强度最大的信号对应的可能胎心位置确定为本次胎心检测最佳位置,并显示确定出的本次胎心检测最佳位置。由于首先基于历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定出了本次胎心检测时多个可能存在胎心位置,再从多个可能存在胎心位置中确定出了本次胎心检测最佳位置,并显示确定出的本次胎心检测最佳位置,因此,实现了帮助用户快速准确地确定胎心检测最佳位置。A method and system for determining the best position for fetal heart rate detection provided by the embodiments of the present invention include: the best position for fetal heart rate detection determined according to any one of the previous fetal heart rate detections recorded and the gestational age during the current fetal heart rate detection. and abdominal circumference, determine and display multiple possible fetal heart positions during this fetal heart detection; detect the signal corresponding to each possible fetal heart position; The possible fetal heart position corresponding to the signal is determined as the best position for the current fetal heart detection, and the determined best position for the current fetal heart detection is displayed. Because firstly, based on the best position of fetal heart detection determined in any previous fetal heart detection and the gestational age and abdominal circumference of this fetal heart detection, it is determined that there are multiple possible fetal heart positions in this fetal heart detection, and then The best position of the fetal heart rate detection is determined from multiple possible fetal heart positions, and the determined best position of the fetal heart rate detection is displayed. Therefore, it is realized to help the user to quickly and accurately determine the best fetal heart rate detection position. Location.
附图说明Description of drawings
图1为不同孕周对应的胎心位置的示意图;Fig. 1 is the schematic diagram of the fetal heart position corresponding to different gestational age;
图2为本发明实施例提供的胎心检测最佳位置的确定方法的流程图;2 is a flowchart of a method for determining an optimal position for fetal heart rate detection provided by an embodiment of the present invention;
图3为本发明实施例提供的两次胎心检测之间的模拟胎儿发育的关联球体模型的示意图;3 is a schematic diagram of an associated spheroid model for simulating fetal development between two fetal heart rate detections provided by an embodiment of the present invention;
图4为本发明实施例提供的多个可能存在胎心位置的示意图;4 is a schematic diagram of a plurality of possible fetal heart positions provided by an embodiment of the present invention;
图5为本发明实施例提供的采用麦克风阵列同时检测各可能存在胎心位置对应的声音信号的示意图;5 is a schematic diagram of using a microphone array to simultaneously detect sound signals corresponding to each possible fetal heart position according to an embodiment of the present invention;
图6为本发明实施例提供的胎心检测最佳位置的确定系统的示意图。FIG. 6 is a schematic diagram of a system for determining an optimal position for fetal heart rate detection according to an embodiment of the present invention.
具体实施方式Detailed ways
下面结合附图,对本发明实施例提供的胎心检测最佳位置的确定方法及系统的具体实施方式进行详细地说明。The specific implementations of the method and system for determining the optimal position for fetal heart rate detection provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
本发明实施例提供的一种胎心检测最佳位置的确定方法,如图2所示,具体包括以下步骤:A method for determining an optimal position for fetal heart rate detection provided by an embodiment of the present invention, as shown in FIG. 2 , specifically includes the following steps:
S201、根据记录的历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定并显示本次胎心检测时多个可能存在胎心位置;S201. Determine and display a plurality of possible fetal heart positions during the current fetal heart detection according to the best position of the fetal heart detection determined at any one of the recorded previous fetal heart detections and the gestational age and abdominal circumference during the current fetal heart detection. ;
S202、检测各可能存在胎心位置对应的信号;S202. Detect signals corresponding to each possible fetal heart position;
S203、根据检测到的各可能存在胎心位置对应的信号,将强度最大的信号对应的可能胎心位置确定为本次胎心检测最佳位置,并显示确定出的本次胎心检测最佳位置。S203. According to the detected signals corresponding to each possible fetal heart position, determine the possible fetal heart position corresponding to the signal with the highest intensity as the best position for the current fetal heart detection, and display the determined best fetal heart detection position for this time. Location.
具体地,在本发明实施例提供的上述确定方法中,由于首先基于历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定出了本次胎心检测时多个可能存在胎心位置,再从多个可能存在胎心位置中确定出了本次胎心检测最佳位置,并显示确定出的本次胎心检测最佳位置,因此,实现了帮助用户快速准确地确定胎心检测最佳位置。Specifically, in the above determination method provided by the embodiment of the present invention, firstly, based on the optimal position of the fetal heart rate detection determined at any one of the previous fetal heart rate detections and the gestational age and abdominal circumference during the current fetal heart rate detection, the determination is made. In this fetal heart rate detection, there are multiple possible fetal heart positions, and then the best position for this fetal heart rate detection is determined from the multiple possible fetal heart rate positions, and the determined optimal position for this fetal heart rate detection is displayed. Therefore, it is realized to help the user to quickly and accurately determine the best position for fetal heart rate detection.
在具体实施时,在本发明实施例提供的上述确定方法中,步骤S201根据记录的历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定本次胎心检测时多个可能存在胎心位置,具体可以通过以下方式实现:In specific implementation, in the above determination method provided by the embodiment of the present invention, step S201 is based on the best position for fetal heart rate detection determined at any one of the previous fetal heart rate detections recorded and the gestational age and abdominal circumference during the current fetal heart rate detection. , to determine that there are multiple possible fetal heart positions during this fetal heart rate detection, which can be achieved in the following ways:
根据历次胎心检测中任一次确定的胎心检测最佳位置,任一次确定的胎心检测最佳位置对应的孕周和腹围,以及本次胎心检测时的孕周和腹围,构建两次胎心检测之间的模拟胎儿发育的关联球体模型;According to the best position of fetal heart rate detection determined at any one time in the previous fetal heart rate detection, the gestational age and abdominal circumference corresponding to the best position of fetal heart rate detection determined at any time, and the gestational age and abdominal circumference of this fetal heart rate detection, construct A correlative spheroid model that simulates fetal development between two fetal heart tests;
根据任一次确定的胎心检测最佳位置,以及构建出的两次胎心检测之间的模拟胎儿发育的关联球体模型,确定多个可能存在胎心位置。According to the best position of fetal heart detection determined at any one time, and the constructed correlation spheroid model for simulating fetal development between two fetal heart detections, multiple possible fetal heart positions are determined.
需要说明的是,若任一次确定的胎心检测最佳位置已存在对应的模拟胎儿发育的球体模型,步骤S201根据记录的历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定本次胎心检测时多个可能存在胎心位置,还可以通过以下方式实现:It should be noted that, if there is a corresponding spheroid model for simulating fetal development at the best position for fetal heart rate detection determined at any time, step S201 is based on the best position for fetal heart rate detection determined at any one time in the recorded previous fetal heart rate tests and this time. The gestational age and abdominal circumference at the time of fetal heart rate detection, to determine multiple possible fetal heart positions during this fetal heart rate detection, can also be achieved in the following ways:
根据历次胎心检测中任一次确定的胎心检测最佳位置,任一次确定的胎心检测最佳位置对应的孕周和模拟胎儿发育的球体模型,以及本次胎心检测时的孕周和腹围,构建两次胎心检测之间的模拟胎儿发育的关联球体模型;According to the best position of fetal heart rate detection determined at any one time in previous fetal heart rate detection, the gestational age corresponding to the best position of fetal heart rate detection and the spheroid model for simulating fetal development, and the gestational age and Abdominal circumference, to construct a correlative spheroid model that simulates fetal development between two fetal heart rates;
根据任一次确定的胎心检测最佳位置,以及构建出的两次胎心检测之间的模拟胎儿发育的关联球体模型,确定多个可能存在胎心位置。According to the best position of fetal heart detection determined at any one time, and the constructed correlation spheroid model for simulating fetal development between two fetal heart detections, multiple possible fetal heart positions are determined.
在具体实施时,在本发明实施例提供的上述确定方法的步骤S201的具体实现方式中,根据历次胎心检测中任一次确定的胎心检测最佳位置,任一次确定的胎心检测最佳位置对应的孕周和腹围,以及本次胎心检测时的孕周和腹围,构建两次胎心检测之间的模拟胎儿发育的关联球体模型,具体可以通过以下方式实现:In specific implementation, in the specific implementation of step S201 of the above determination method provided by the embodiment of the present invention, according to the best position for fetal heart rate detection determined at any time in previous fetal heart rate detections, the best fetal heart rate detection at any time is determined. The gestational age and abdominal circumference corresponding to the position, as well as the gestational age and abdominal circumference at the time of the fetal heart rate detection, construct an associated spheroid model that simulates fetal development between the two fetal heart rate detections, which can be achieved in the following ways:
根据任一次胎心检测时的孕周和腹围,确定任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径;According to the gestational age and abdominal circumference of any fetal heart detection, determine the sphere radius of the sphere model that simulates fetal development corresponding to any fetal heart detection;
根据本次胎心检测时的孕周和腹围,确定本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径;According to the gestational age and abdominal circumference during this fetal heart detection, determine the sphere radius of the sphere model corresponding to the simulated fetal development during this fetal heart detection;
根据两次胎心检测时的孕周,确定任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离;According to the gestational age of the two fetal heartbeat detections, determine the distance between the spherical centers of the spherical model simulating fetal development corresponding to any one fetal heart detection and this fetal heart detection respectively;
根据确定出的两次胎心检测时分别对应的模拟胎儿发育的球体模型的球体半径,以及任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离,构建出具有相同切面的两次胎心检测之间的模拟胎儿发育的关联球体模型。According to the determined spheroid radius of the spheroid model simulating fetal development corresponding to the two fetal heart detections, and the difference between the sphere centers of the spheroid model simulating fetal development corresponding to any one fetal heart detection and this fetal heart detection, respectively The distance between the two fetal heart rate detections with the same section was constructed to simulate the fetal development.
具体地,在本发明实施例提供的上述确定方法中,假设任一次确定的胎心检测最佳位置为p,任一次确定的胎心检测最佳位置p对应的孕周为w0、腹围为b0,任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径为r0;本次胎心检测时的孕周为w1、腹围为b1,本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径为r1。那么,如图3所示,任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径为r0可以使用公式计算得到;本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径为r1可以使用公式计算得到。其中,和是修正因子,该修正因子是在进行大量个体实验之后得到的一个经验值,可以消除利用腹围计算拟胎儿发育的球体模型的球体半径时的误差。Specifically, in the above determination method provided by the embodiment of the present invention, it is assumed that the best position for fetal heartbeat detection determined at any time is p, and the gestational age corresponding to the best position p for fetal heartbeat detection determined at any time is w 0 , the abdominal circumference is b 0 , and the sphere radius of the spheroid model corresponding to simulating fetal development in any fetal heart detection is r 0 ; the gestational age in this fetal heart detection is w 1 , and the abdominal circumference is b 1 . The spherical radius of the corresponding spherical model simulating fetal development is r 1 . Then, as shown in Figure 3, the sphere radius of the sphere model for simulating fetal development during any fetal heart rate detection is r 0 , the formula can be used Calculated; the sphere radius of the sphere model corresponding to simulating fetal development in this fetal heart detection is r 1 , and the formula can be used Calculated. in, and is a correction factor, the correction factor is an empirical value obtained after a large number of individual experiments, which can eliminate the error when calculating the sphere radius of the sphere model of the quasi-fetal development using the abdominal circumference.
进一步地,假设任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离为那么通过将任一次确定的胎心检测最佳位置p对应的孕周w0,以及本次胎心检测时的孕周w1带入公式:即可计算出球心之间的距离其中,a为一个常量系数,是大量实验之后得到的一个经验值。Further, it is assumed that the distance between the sphere centers of the sphere models simulating fetal development corresponding to any fetal heart rate detection and the current fetal heart rate detection is as follows: Then, by bringing the gestational week w 0 corresponding to the best position p of fetal heart rate detection at any time, and the gestational week w 1 at the time of this fetal heart rate detection into the formula: The distance between the centers of the spheres can be calculated Among them, a is a constant coefficient, which is an empirical value obtained after a large number of experiments.
通过上述计算,得到了任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径r0,本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径r1, 以及任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离显然,基于参数r0、r1、和可以构建出多种表征两次胎心检测之间的模拟胎儿发育的关联球体模型。较佳地,为了便于得到本次胎心检测时的可能的胎心位置,如图3所示,可以基于参数r0、r1、和构建出具有相同切面q的两次胎心检测之间的模拟胎儿发育的关联球体模型。Through the above calculation, the sphere radius r 0 of the sphere model simulating fetal development corresponding to any fetal heart rate detection, the sphere radius r 1 of the sphere model simulating fetal development corresponding to this fetal heart rate detection, and any fetal heart rate detection are obtained. The distance between the sphere centers of the sphere model simulating fetal development corresponding to the heart detection and this fetal heart detection respectively Obviously, based on the parameters r 0 , r 1 , and A variety of correlative spheroid models can be constructed that characterize the simulated fetal development between two fetal heart rate measurements. Preferably, in order to facilitate obtaining the possible fetal heart position during this fetal heart rate detection, as shown in FIG. 3 , the parameters r 0 , r 1 , and A correlative spheroid model simulating fetal development was constructed between two fetal heart rate measurements with the same slice q.
具体地,在本发明实施例提供的上述确定方法的步骤S201的具体实现方式中,根据任一次确定的胎心检测最佳位置,以及构建出的两次胎心检测之间的模拟胎儿发育的关联球体模型,确定多个可能存在胎心位置,如图3所示,具体可以通过以下方式实现:Specifically, in the specific implementation of step S201 of the above determination method provided by the embodiment of the present invention, the optimal position of fetal heart rate detection is determined according to any one time, and the simulated fetal development between two fetal heart rate detections is constructed. Associate the sphere model to determine multiple possible fetal heart positions, as shown in Figure 3, which can be achieved in the following ways:
根据确定出的任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径r0,本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径r1,以及任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离利用公式确定本次胎心检测时的胎心位置相对于任一次确定的胎心检测最佳位置p的偏移量rΔ,其中,Δr=r1-r0;According to the determined spheroid radius r 0 of the spheroid model simulating fetal development during any fetal heart detection, the spheroid radius r 1 of the spheroid model simulating fetal development during this fetal heart detection, and any fetal heart detection The distance between the sphere centers of the sphere model simulating fetal development corresponding to this time and the fetal heart detection time Use the formula Determine the offset r Δ of the position of the fetal heart during the current fetal heart detection relative to the optimal position p of the fetal heart detection determined at any time, wherein Δr=r 1 -r 0 ;
如图4所示,以任一次确定的胎心检测最佳位置p为顶点,以确定出的偏移量rΔ为半径,确定顶角为90度的扇形区域。较佳地,为了更准确地找到胎心的位置,扇形区域的圆弧的中点位于任一次确定的胎心检测最佳位置p的正下方;As shown in FIG. 4 , taking the determined optimal position p for fetal heart rate detection as the vertex, the determined offset r Δ as the radius, and determining the fan-shaped area with the vertex angle of 90 degrees. Preferably, in order to find the position of the fetal heart rate more accurately, the midpoint of the arc of the fan-shaped area is located just below the optimal position p for fetal heart rate detection determined at any time;
将扇形区域边界确定为多个可能存在胎心的位置。The sector-shaped area boundaries are determined as multiple locations where fetal hearts may exist.
具体地,在本发明实施例提供的上述确定方法中,步骤S202检测各可能存在胎心位置对应的信号,可以采用以下但不限于以下的方式实现,在此不做限定。例如可以采用麦克风阵列同时检测各可能存在胎心位置对应的声音信号。又如还可以采用胎心仪依次检测各可能存在胎心位置对应的胎心信号。Specifically, in the above determination method provided in the embodiment of the present invention, step S202 detects signals corresponding to each possible fetal heart position, which may be implemented in the following but not limited to the following manners, which are not limited here. For example, a microphone array can be used to simultaneously detect sound signals corresponding to each possible fetal heart position. For another example, a fetal heart rate monitor may also be used to sequentially detect fetal heart signals corresponding to each possible fetal heart position.
较佳地,在本发明实施例提供的上述确定方法中,在步骤S202的实现方式为采用麦克风阵列同时检测各可能存在胎心位置对应的声音信号时,在步骤 S203根据检测到的各可能存在胎心位置对应的信号,将强度最大的信号对应的可能胎心位置确定为本次胎心检测最佳位置之前,还可以包括:过滤采用麦克风阵列同时检测到的各可能存在胎心位置对应的声音信号中的环境噪音和母体心跳声音,以得到质量较好的胎心信号。Preferably, in the above determination method provided by the embodiment of the present invention, when the implementation of step S202 is to use a microphone array to simultaneously detect sound signals corresponding to each possible fetal heart position, in step S203, according to the detected sound signals of each possible presence For the signal corresponding to the fetal heart position, before determining the possible fetal heart position corresponding to the signal with the highest intensity as the best position for the current fetal heart detection, it may also include: filtering the signals corresponding to each possible fetal heart position simultaneously detected by the microphone array. Environmental noise and maternal heartbeat sound in the sound signal to obtain a better quality fetal heartbeat signal.
进一步地,在本发明实施例提供的上述确定方法中的S203根据检测到的各可能存在胎心位置对应的信号,将强度最大的信号对应的可能胎心位置确定为本次胎心检测最佳位置,并显示确定出的本次胎心检测最佳位置之后,还可以通过以下但不限于以下的方式得到本次胎心检测最佳位置的胎心值,在此不做限定:Further, in S203 in the above-mentioned determination method provided by the embodiment of the present invention, according to the detected signals corresponding to each possible fetal heart position, the possible fetal heart position corresponding to the signal with the greatest intensity is determined as the best fetal heart detection for this time. After displaying the determined optimal position of the fetal heart rate detection, the fetal heart rate value of the optimal position of the fetal heart rate detection can also be obtained by the following but not limited to the following methods, which are not limited here:
例如,可以根据显示出的确定出的本次胎心检测最佳位置,采用胎心仪直接测量得到本次胎心检测最佳位置的胎心值。又如还可以采用麦克风阵列间接得到本次胎心检测最佳位置的胎心值。For example, according to the displayed and determined best position for the current fetal heart rate detection, the fetal heart rate value of the current best position for the current fetal heart rate detection can be obtained by directly measuring the fetal heart rate instrument. For another example, a microphone array can also be used to indirectly obtain the fetal heart rate value at the best position for the fetal heart rate detection.
具体地,在本发明实施例提供的上述确定方法中,麦克风阵列由多个高精度麦克风组成,麦克风的数量和精度可以根据实际情况进行设置,在此不做限定。例如图5所示,麦克风阵列501由5个高精度麦克风s1、s2、……、s5组成。采用由高精度麦克风s1、s2、……、s5组成的麦克风阵列501同时检测各可能存在胎心位置对应的声音信号。在t时刻,各麦克风s1、s2、……、s5收到的声音信号分别为s1(t)、s2(t)、……、s5(t),相应地,各声音信号分别为 s1(t)、s2(t)、……、s5(t)的信号强度分别为P1(t)、P2(t)、……、P5(t)。找到最强的声音信号Smax(t)和最弱的声音信号Smin(t)。由于最弱的信号Smin(t)含有胎儿心音的成分较少,大部分是环境噪音和母体心跳声音,因此,可以将强度最大的声音信号Smax(t)与强度最小的声音信号Smin(t)的差值确定为胎心信号。即通过上述方式对最强的信号Smax(t)进行提纯,从而得到质量较好的胎心信号S(t),且S(t)=Smax(t)-Smin(t)。当然,还可以直接通过滤最强的声音信号Smax(t)中的环境噪音和母体心跳声音,对最强的声音信号Smax(t)进行提纯,在此不做限定。然后,将质量较好的胎心信号S(t)求平方,并根据求平方后的胎心信号S(t)2,确定两个相邻极大值之间的时间差Δt,时间差Δt的倒数1/Δt就是本次胎心检测最佳位置的胎心值。Specifically, in the above determination method provided by the embodiment of the present invention, the microphone array is composed of a plurality of high-precision microphones, and the number and precision of the microphones can be set according to the actual situation, which is not limited here. For example, as shown in FIG. 5 , the
值得注意的是,在本发明实施例提供的上述确定方法中,还可以仅通过采用麦克风阵列采集腹部不同位置处的声音信号,并过滤掉各声音信号中的环境噪音和母体心跳声音,确定过滤后的强度最大的声音信号对应的麦克风所在的位置为胎心检测最佳位置。麦克风阵列可以通过无线或有线与手机等智能终端连接,以便在手机软件(Application,APP)的腹部示意图中将胎心检测最佳位置显示给用户。It is worth noting that, in the above determination method provided by the embodiment of the present invention, the sound signal at different positions of the abdomen can also be collected only by using a microphone array, and the environmental noise and maternal heartbeat sound in each sound signal can be filtered out to determine the filter. The position of the microphone corresponding to the final sound signal with the highest intensity is the best position for fetal heart rate detection. The microphone array can be connected with a smart terminal such as a mobile phone wirelessly or by wire, so that the best position for fetal heart detection can be displayed to the user in the abdominal schematic diagram of the mobile phone software (Application, APP).
可见,在本发明实施例提供的上述确定方法中,基于纯软件或者辅助麦克风阵列硬件的方法,综合历史胎心检测最佳位置、孕周和腹围的变化,计算出本次胎心检测最佳位置,并通过手机APP显示给用户,以此帮助用户找到胎心检测最佳位置。It can be seen that, in the above determination method provided by the embodiment of the present invention, based on pure software or the method of auxiliary microphone array hardware, the best position, gestational age, and abdominal circumference of historical fetal heart detection are integrated to calculate the optimal fetal heart detection position for this time. The best position is displayed to the user through the mobile APP, so as to help the user find the best position for fetal heart rate detection.
基于同一发明构思,本发明实施例还提供了一种胎心检测最佳位置的确定系统,由于本发明实施例提供的胎心检测最佳位置的确定系统与上述胎心检测最佳位置的确定方法相似,因此,该确定系统的实施可以参见上述确定方法的实施,重复之处不再赘述。Based on the same inventive concept, the embodiments of the present invention also provide a system for determining the optimal position for fetal heart rate detection. The methods are similar, therefore, for the implementation of the determination system, reference may be made to the implementation of the determination method described above, and repeated descriptions will not be repeated.
本发明实施例提供的胎心检测最佳位置的确定系统,如图6所示,包括:The system for determining the optimal position of fetal heart rate detection provided by the embodiment of the present invention, as shown in FIG. 6 , includes:
处理器601,用于根据记录的历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定本次检测时多个可能存在胎心位置;根据检测到的各可能存在胎心位置对应的信号,将强度最大的信号对应的可能胎心位置确定为本次胎心检测最佳位置;The
检测器602,用于检测各可能存在胎心位置对应的信号;a
显示器603,用于显示本次检测时多个可能存在胎心位置,以及显示确定出的本次胎心检测最佳位置。The
具体地,在本发明实施例提供的上述确定系统中,显示器603可以为手机、电脑等任何具有显示功能的产品或部件。在显示器603为手机时,可以在手机 APP的腹部示意图中显示本次检测时多个可能存在胎心位置,以及显示确定出的本次胎心检测最佳位置,以方便用户根据手机APP的腹部示意图中显示的位置进行胎心值的检测。Specifically, in the above determination system provided by the embodiment of the present invention, the
在具体实施时,在本发明实施例提供的上述确定系统中,处理器601,可以具体用于根据历次胎心检测中任一次确定的胎心检测最佳位置,任一次确定的胎心检测最佳位置对应的孕周和腹围,以及本次胎心检测时的孕周和腹围,构建两次胎心检测之间的模拟胎儿发育的关联球体模型;根据任一次确定的胎心检测最佳位置,以及构建出的两次胎心检测之间的模拟胎儿发育的关联球体模型,确定多个可能存在胎心位置。During specific implementation, in the above-mentioned determination system provided by the embodiment of the present invention, the
在具体实施时,在本发明实施例提供的上述确定系统中,处理器601,还可以具体用于根据任一次胎心检测时的孕周和腹围,确定任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径;根据本次胎心检测时的孕周和腹围,确定本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径;根据两次胎心检测时的孕周,确定任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离;根据确定出的两次胎心检测时分别对应的模拟胎儿发育的球体模型的球体半径,以及任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离,构建出具有相同切面的两次胎心检测之间的模拟胎儿发育的关联球体模型。During specific implementation, in the above determination system provided by the embodiment of the present invention, the
在具体实施时,在本发明实施例提供的上述确定系统中,处理器601,还可以具体用于根据确定出的任一次胎心检测时对应的模拟胎儿发育的球体模型的球体半径,本次胎心检测时对应的模拟胎儿发育的球体模型的球体半径,以及任一次胎心检测时和本次胎心检测时分别对应的模拟胎儿发育的球体模型的球心之间的距离,确定本次胎心检测时的胎心位置相对于任一次确定的胎心检测最佳位置的偏移量;以任一次确定的胎心检测最佳位置为顶点,以确定出的偏移量为半径,确定顶角为90度的扇形区域,且扇形区域的圆弧的中点位于任一次确定的胎心检测最佳位置的正下方;将扇形区域边界确定为多个可能存在胎心的位置。During specific implementation, in the above-mentioned determination system provided by the embodiment of the present invention, the
在具体实施时,在本发明实施例提供的上述确定系统中,检测器602,可以为麦克风阵列,用于同时检测各可能存在胎心位置对应的声音信号。还可以为胎心仪,用于依次检测各可能存在胎心位置对应的胎心信号。其中,胎心仪可以为传统的多普勒效应超声胎心仪,还可以为最新的被动式非超声胎心仪,在此不做限定。During specific implementation, in the above determination system provided by the embodiment of the present invention, the
较佳地,在本发明实施例提供的上述确定系统中,处理器601,还可以用于过滤采用麦克风阵列同时检测到的各可能存在胎心位置对应的声音信号中的环境噪音和母体心跳声音。Preferably, in the above-mentioned determination system provided by the embodiment of the present invention, the
在具体实施时,在本发明实施例提供的上述确定系统中,还可以包括:胎心仪604,用于根据显示出的确定出的本次胎心检测最佳位置,测量本次胎心检测最佳位置的胎心值。该胎心仪可以为传统的多普勒效应超声胎心仪,还可以为最新的被动式非超声胎心仪,在此不做限定。During specific implementation, the above-mentioned determination system provided by the embodiment of the present invention may further include: a fetal
在具体实施时,在本发明实施例提供的上述确定系统中,处理器601,还可以用于在采用麦克风阵列同时检测到的各可能存在胎心位置对应的声音信号中,确定强度最大的声音信号和强度最小的声音信号;将强度最大的声音信号与强度最小的声音信号的差值确定为胎心信号;将胎心信号平方后确定出的两个相邻极大值之间的时间差的倒数确定为本次胎心检测最佳位置的胎心值。During specific implementation, in the above-mentioned determination system provided by the embodiment of the present invention, the
本发明实施例提供的上述胎心检测最佳位置的确定方法及系统,包括:根据记录的历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定并显示本次胎心检测时多个可能存在胎心位置;检测各可能存在胎心位置对应的信号;根据检测到的各可能存在胎心位置对应的信号,将强度最大的信号对应的可能胎心位置确定为本次胎心检测最佳位置,并显示确定出的本次胎心检测最佳位置。由于首先基于历次胎心检测中任一次确定的胎心检测最佳位置以及本次胎心检测时的孕周和腹围,确定出了本次胎心检测时多个可能存在胎心位置,再从多个可能存在胎心位置中确定出了本次胎心检测最佳位置,并显示确定出的本次胎心检测最佳位置,因此,实现了帮助用户快速准确地确定胎心检测最佳位置。The above-mentioned method and system for determining the best position for fetal heart rate detection provided by the embodiments of the present invention include: the best position for fetal heart rate detection determined according to any one of the previous fetal heart rate detections recorded and the gestational age and Abdominal circumference, determine and display multiple possible fetal heart positions during this fetal heart detection; detect the signal corresponding to each possible fetal heart position; according to the detected signals corresponding to each possible fetal heart position, the highest intensity signal The corresponding possible fetal heart position is determined as the best position for the current fetal heart detection, and the determined best position for the current fetal heart detection is displayed. Because firstly, based on the best position of fetal heart detection determined in any previous fetal heart detection and the gestational age and abdominal circumference of this fetal heart detection, it is determined that there are multiple possible fetal heart positions in this fetal heart detection, and then The best position of the fetal heart rate detection is determined from multiple possible fetal heart positions, and the determined best position of the fetal heart rate detection is displayed. Therefore, it is realized to help the user to quickly and accurately determine the best fetal heart rate detection position. Location.
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
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