CN104545985A - Heart sound intelligent monitoring device for vehicle active safety - Google Patents
Heart sound intelligent monitoring device for vehicle active safety Download PDFInfo
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- CN104545985A CN104545985A CN201310468519.8A CN201310468519A CN104545985A CN 104545985 A CN104545985 A CN 104545985A CN 201310468519 A CN201310468519 A CN 201310468519A CN 104545985 A CN104545985 A CN 104545985A
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Abstract
The invention relates to a heart sound intelligent monitoring device for vehicle active safety. The heart sound intelligent monitoring device mainly comprises a heart sound pickup probe array, a signal processing circuit, an indication lamp, a lithium battery and a sound insulation cavity with a nylon sleeve tape; the heart sound intelligent monitoring device is installed on a vehicle safety belt and can be adjusted vertically along the safety belt. The bottoms of heart sound pickup probes in the device are padded with memory materials, and the heart sound pickup probes are arranged in an arrayed manner and arranged in the sound insulation cavity capable of being deformed according to contact faces. By means of the heart sound intelligent monitoring device, heart physical conditions of a driver can be monitored in real time in the traveling process; meanwhile, the heart sound intelligent monitoring device can be fused with other driver fatigue detection systems and other active safety systems; the reliability of a vehicle traveling safety monitoring system is further improved; and the heart sound intelligent monitoring device is of positive significance in crowds such as advanced-age vehicle drivers and vehicle drivers with potential heart diseases.
Description
Technical field
The present invention relates to a kind of hear sounds supervising device, especially a kind of hear sounds intelligent monitoring and controlling device for automobile active safety.
Background technology
At present, along with the growth to hear sounds feature extraction and analysis correlational study achievement, heart sound transducer occupies increasing proportion in medical treatment with individual health care association area.Meanwhile, in order to effectively solve running safety problem, the automobile active safety solution making full use of new technique receives increasing concern just gradually.The driver fatigue detection technique being wherein representative with physiological driver's state-detection is the application model that current reliability is higher.Recent years, along with the aging trend growth of population, driver is ubiquity aging problem also, wherein there is a certain proportion of cardiac, once in the process of steering vehicle heart attack, this is the situation that current active safety facility can not detect in time, has certain potential safety hazard equally.
Show according to hear sounds characteristic correlational study basis, by introducing heart sound transducer on car belt, and in conjunction with existing Study in Driver Fatigue State Surveillance System and automobile active safety system, rational multisensor configuration combination, can reach the unification of reliability and safety.By technological innovation and the development of more than ten years, traditional stethoscope gradually replace by electronic stethoscope, current techniques focus mainly concentrates in the problem such as intellectuality, miniaturization, universalness of heart sound transducer, but the heart sound transducer be applied on automobile yet there are no relevant report.So development has low-power consumption, the intelligentized heart sound transducer be configured on car belt has important Practical significance.
Summary of the invention
In order to increase the application expansion of the technological means of new driver's physiological situation monitoring and existing heart sound transducer, the invention provides and a kind ofly be applied to the hear sounds supervising device that field of automotive active safety has low-power consumption, intelligent characteristic.This device is configured on car belt, can gather the cardiechema signals of driver, and carries out analyzing and processing to cardiechema signals, by the cardiac physiology of driver during corresponding algorithm identification driving, and is in the prompting of abnormality alarm driver.
The technical solution adopted for the present invention to solve the technical problems is as follows:
The present invention is a kind of hear sounds supervising device, mainly comprises hear sounds pickup linear transducer array, signal processing circuit, display lamp, lithium battery and is furnished with the sound insulation cavity of nylon cuff.Hear sounds pickup linear transducer array is arranged on one can the oval sound insulation cavity inner wall of deformation, signal processing circuit, audible-visual annunciator are fixed on the top of sound insulation cavity, cavity is configured with the rectangle nylon cuff of embedded lithium battery, this cuff can be installed on car belt, and position can be adjusted up and down along seat belt, so that the collection of cardiechema signals.
Hear sounds pickup probe in device adopts array format, and be placed in can the sound insulation cavity of the deformation according to contact surface, in addition, bottom hear sounds pickup linear transducer array, pad has memory material, after hear sounds intelligent monitoring and controlling device position is fixing, the space length of hear sounds pickup linear transducer array and heart can be made minimum, effectively to obtain cardiechema signals.
Vehicle-mounted intelligent monitoring type heart sound transducer working method involved in the present invention is: driver is first by being plugged seat belt, and at this moment hear sounds supervising device is started working, and is then adjusted to front correct position.The cardiac physiology of this device Real-Time Monitoring driver when driving, internal processor carries out Treatment Analysis to cardiechema signals, and state when judging that driver's hear sounds is abnormal according to pattern classification algorithm also provides corresponding alarm.An audible-visual annunciator is used for the instruction of hear sounds supervising device state and driver's hear sounds exceptional state alarm, and when hear sounds supervising device does not detect hear sounds, display lamp is bright; When hear sounds being detected, display lamp does not work; When hear sounds is abnormal, bright, the audible alarm of display lamp flicker.
For improving the working time of signal gathering unit, hear sounds intelligent monitoring and controlling device power pack involved in the present invention mainly adopts lithium battery, inner employing super low-power consumption processor, and before seat belt is not correctly plugged, be in off-mode, reduce power consumption to greatest extent.
For improving the reliability of signal gathering unit, in hear sounds intelligent monitoring and controlling device involved in the present invention, hear sounds pickup probe adopts array format, and be built in sound insulation cavity, can eliminate by the blending algorithm of internal processor the impact that external environmental noise and sensor cause due to collection position deviation to the full extent.
In sum, the hear sounds supervising device that the present invention relates to has low-power consumption, intelligent characteristic, this device is while guarantee reliable collection cardiechema signals, effective in real time analysis is carried out to driver's cardiac physiology, when there is abnormality in driver's heart, warning reminding being carried out according to recognition result, ensureing that in driver drives vehicle process, inherently safe simultaneously to greatest extent, at utmost reducing the risk that vehicle accident occurs.
The invention has the beneficial effects as follows, Real-Time Monitoring can be carried out when driving to the cardiac health of driver, also can merge mutually with other Study in Driver Fatigue State Surveillance System and active safety system simultaneously, the reliability of further enhancing ride safety of automobile monitoring system, this to advanced age driver, the crowd such as potential heart disease driver has positive meaning.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the chart at the bottom of of hear sounds supervising device,
Fig. 2 is the top junction composition of hear sounds supervising device,
Fig. 3 is the sectional structure chart of hear sounds supervising device Fig. 1 along center line direction.
Wherein: 1 car belt, 2 hear sounds pickup linear transducer arrays, 3 oval sound insulation cavitys, 4 rectangle nylon cuffs, 5 audible-visual annunciators, 6 lithium batteries, 7 memory materials, 8 signal processing circuit modules.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further elaborated:
As shown in Figure 1, the present invention is a kind of hear sounds supervising device, is configured on car belt 1, by the multiple hear sounds of more than four pick up the hear sounds pickup linear transducer array 2 that form of popping one's head in be installed on one can in the oval sound insulation cavity 3 of deformation.Hear sounds pickup probe adopts piezoelectric to make and forms, built in op amps.The function of array format is adopted to mainly contain following two aspects: to increase probe and the contact area of driver's heart area on the one hand, strengthen the sensitivity of sensor, resolving power and signal to noise ratio further; On the other hand due to sample space and the difference of time, rear end reduces due to change in location or the mobile impact caused by blending algorithm; Hear sounds pickup linear transducer array 2 is placed in can the oval sound insulation cavity 3 of deformation, and this measure ensure that the sealing that cavity and driver's chest are fitted, the at utmost impact that causes of minimizing environment noise, and driver has certain comfort level when wearing.
As shown in Figure 2, sound insulation cavity 3 is configured with rectangle nylon cuff 4, this cuff can be installed on car belt 1, and can adjust position up and down along seat belt, so that the collection of cardiechema signals.Sound insulation cavity 3 is also provided with an audible-visual annunciator 5 for the instruction of hear sounds supervising device state and driver's hear sounds exceptional state alarm, when hear sounds supervising device does not detect hear sounds, display lamp is bright; When hear sounds being detected, display lamp does not work; When hear sounds is abnormal, display lamp flicker is bright.In addition, rectangle nylon cuff 4 is embedded with lithium battery 6, for whole signal gathering unit is powered, is compared to aneroid battery, greatly extends its working time and service life; And lithium battery 6 is positioned in nylon cuff 4, can dismantle very easily, so that charging and replacing.
Hear sounds supervising device is the profile along Fig. 1 center line direction as shown in Figure 3, each hear sounds pickup probe bottom liner in hear sounds pickup linear transducer array 2 has memory material 7, after hear sounds intelligent monitoring and controlling device position is fixing, hear sounds pickup linear transducer array can be made to press close to the thoracic cavity of driver closely, from making spatially, the distance of itself and heart is minimum, effectively to obtain more real cardiechema signals.
Signal processing circuit module 8 is fixed on the top of oval sound insulation cavity 3, signal conditioning circuit and low power consumption digital signal processor is comprised in signal processing circuit module 8, signal conditioning circuit mainly realizes the Filtering Processing of cardiechema signals, digital signal processor major function realizes cardiechema signals to strengthen and sorting algorithm, real-time monitoring driving person's heart real time physiologic status.These circuit realize by integrated circuit, little to realize volume, lightweight, and power consumption is few.
The signals collecting of hear sounds supervising device with monitoring flow process is: when driver installs seat belt 1, then the nylon cuff 4 on hear sounds supervising device is adjusted along belt direction, if do not collect cardiechema signals or intensity is very weak, the display lamp of audible-visual annunciator 5 is by bright, prompting driver adjusts the position of hear sounds supervising device in front, when after the cardiechema signals collecting sufficient intensity, display lamp extinguishes, at this moment multiple hear sounds pickup probe 2 starts the cardiechema signals gathering driver simultaneously, through signal processing circuit 8 Treatment Analysis, the cardiac physiology of Real-Time Monitoring driver, when the heart physiological parameter monitoring driver is undergone mutation, judge that driver causes due to other factors such as fatigue state or heart disease according to pattern classification algorithm.Hear sounds supervising device detect driver be in fatigue state and make hear sounds abnormal time, beginning pipes by audible-visual annunciator hurriedly, glimmer, and prompting driver adjusts the mental status, when driver causes hear sounds abnormal due to heart disease, audible-visual annunciator will yowl, and remind driver's brake.
In sum, the hear sounds intelligent monitoring and controlling device that the present invention relates to, while guarantee low-power consumption, reliability, has taken into full account and has used the motility of installing, be highly susceptible to being integrated into existing automotive interior; In addition, the modularized design mode of hear sounds intelligent monitoring and controlling device inside, substantially increases the system compatibility of this device and upgrading convenience.
Claims (2)
1. the hear sounds intelligent monitoring and controlling device for automobile active safety, mainly comprise hear sounds pickup linear transducer array (2), signal processing circuit (8), display lamp (5), lithium battery (6) and be furnished with the sound insulation cavity (3) of nylon cuff, it is characterized in that: hear sounds pickup linear transducer array (2) is arranged on one can oval sound insulation cavity (3) inwall of deformation, signal processing circuit (8), audible-visual annunciator is fixed on the top of sound insulation cavity (3), housing is configured with the rectangle nylon cuff (4) of embedded lithium battery, this cuff can be installed on car belt, and position can be adjusted up and down along seat belt, so that the collection of cardiechema signals.
2. hear sounds intelligent monitoring and controlling device according to claim 1, it is characterized in that: the hear sounds pickup probe in device adopts array format, and be placed in can the sound insulation cavity of the deformation according to contact surface, in addition, bottom hear sounds pickup linear transducer array, pad has memory material, after hear sounds intelligent monitoring and controlling device position is fixing, the space length of hear sounds pickup linear transducer array and heart can be made minimum, effectively to obtain cardiechema signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310468519.8A CN104545985A (en) | 2013-10-10 | 2013-10-10 | Heart sound intelligent monitoring device for vehicle active safety |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310468519.8A CN104545985A (en) | 2013-10-10 | 2013-10-10 | Heart sound intelligent monitoring device for vehicle active safety |
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| CN104545985A true CN104545985A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310468519.8A Pending CN104545985A (en) | 2013-10-10 | 2013-10-10 | Heart sound intelligent monitoring device for vehicle active safety |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216739A (en) * | 2015-10-15 | 2016-01-06 | 上海理工大学 | Car belt |
| CN107788967A (en) * | 2016-08-30 | 2018-03-13 | 华邦电子股份有限公司 | Fatigue detection device and fatigue detection method |
| GR20170100139A (en) * | 2017-03-31 | 2018-10-31 | Δημητριος Κωνσταντινου Μπαμπλαδημος | Autonomous low-energy user identification-authentication system using biometric signals such as voicegram and cardiogram - application to the internet of things and smart devices |
| CN109646042A (en) * | 2019-01-29 | 2019-04-19 | 电子科技大学 | A kind of wearable heart sound and lungs sound monitoring device based on piezoelectric transducer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2032448U (en) * | 1988-04-19 | 1989-02-15 | 中国人民解放军海军医学研究所 | Medical sensor for cardiac sounds |
| CN1956680A (en) * | 2004-05-24 | 2007-05-02 | 日本先锋公司 | Biological information detection device |
| JP2012157558A (en) * | 2011-02-01 | 2012-08-23 | Sharp Corp | Cardiac sound measuring apparatus |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032448U (en) * | 1988-04-19 | 1989-02-15 | 中国人民解放军海军医学研究所 | Medical sensor for cardiac sounds |
| CN1956680A (en) * | 2004-05-24 | 2007-05-02 | 日本先锋公司 | Biological information detection device |
| JP2012157558A (en) * | 2011-02-01 | 2012-08-23 | Sharp Corp | Cardiac sound measuring apparatus |
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| 马勇 等: "心音检测识别技术在汽车主动安全中的应用", 《数据采集与处理》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216739A (en) * | 2015-10-15 | 2016-01-06 | 上海理工大学 | Car belt |
| CN107788967A (en) * | 2016-08-30 | 2018-03-13 | 华邦电子股份有限公司 | Fatigue detection device and fatigue detection method |
| GR20170100139A (en) * | 2017-03-31 | 2018-10-31 | Δημητριος Κωνσταντινου Μπαμπλαδημος | Autonomous low-energy user identification-authentication system using biometric signals such as voicegram and cardiogram - application to the internet of things and smart devices |
| CN109646042A (en) * | 2019-01-29 | 2019-04-19 | 电子科技大学 | A kind of wearable heart sound and lungs sound monitoring device based on piezoelectric transducer |
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Application publication date: 20150429 |