Contactless sleep apnea monitoring method and device based on the thermal infrared imaging technologyTechnical field
The present invention relates to a kind of contactless sleep apnea monitoring method and device based on the thermal infrared imaging technology, belong to medical instruments field.
Background technology
The International Medical definition standard of sleep apnea syndrome is that one minute internal respiration road stops air-flow and reaches more than 10 seconds, can be diagnosed as " apnea syndrome ".This is a kind of potential fatal disease.Upper respiratory tract obstruction causes carrying out property anoxia, acidosis, dyspnea when being characterized in sleeping.Cause daytime drowsiness, giddy, headache, hypomnesis, weak, bradykinesia, the symptom such as sleep behavior is unusual.The long-term apnea syndrome of suffering from can cause hypertension, arrhythmia and sudden death, and medical circle is attached great importance to the research of this disease.Existing breathing sleep monitor method is multiple vital sign signals under the record patient sleep state, as: brain wave, electromyogram, electro-oculogram, mouth and nose air-flow, the motion of breast abdomen, blood oxygen saturation, electrocardiogram, position etc.These methods are the contact monitoring, must be equipped with the special monitoring chamber, and are poor for applicability for domestic medicine.
Summary of the invention
The present invention seeks to: nostril and oral cavity heat radiation carry out the non-contact infrared imaging detection during to sleep quality, judge by the image comparison analysis whether the detected person asphyxia symptom occurs.
The technical solution adopted in the present invention is: based on the contactless sleep apnea monitoring method of thermal infrared imaging technology, by nostril and oral cavity thermal infrared images in the thermal imaging system Real-time Collection sleep quality process, thermal infrared images is transferred to the image recognition processing module by video interface, the image recognition processing module during according to the human normal vital movement when respiratory characteristic and asphyxia respiratory characteristic be analyzed and judge, send warning when judged result image recognition processing module when dangerous triggers warning module.Thermal imaging system is nostril and oral cavity thermal infrared images in the contactless collection sleep quality process.
The contactless sleep apnea monitoring device that is used for said method, comprise thermal imaging system, video interface, image recognition processing module and warning module, it is characterized in that thermal imaging system passes through the video interface connection layout as recognition processing module, the warning of image recognition processing module output connects warning module.Warning module is audible-visual annunciator.
Advantage of the present invention: to the noncontact of sleep quality asphyxia, radiationless monitoring, can not damage human body, application limitation is less, is fit to family and uses.
Description of drawings
Fig. 1 is overall structure flow chart of the present invention.
Among the figure: 1 is thermal imaging system, and 2 is video interface, and 3 is the image recognition processing module, and 4 is warning module.
The specific embodiment
Contactless sleep apnea monitoring method based on the thermal infrared imaging technology, by nostril and oral cavity thermal infrared images in thethermal imaging system 1 Real-time Collection sleep quality process, thermal infrared images is transferred to imagerecognition processing module 3 byvideo interface 2, imagerecognition processing module 3 during according to the human normal vital movement when respiratory characteristic and asphyxia respiratory characteristic be analyzed and judge, send warning when judged result imagerecognition processing module 3 when dangerous triggers warning modules 4.Thermal imaging system 1 is nostril and oral cavity thermal infrared images in the contactless collection sleep quality process.
Be used for realizing the device of contactless sleep apnea monitoring method, comprisethermal imaging system 1,video interface 2, imagerecognition processing module 3 andwarning module 4, it is characterized in thatthermal imaging system 1 passes throughvideo interface 2 connection layouts asrecognition processing module 3, the warning output of imagerecognition processing module 3 connectswarning module 4, andwarning module 4 is audible-visual annunciator.