A non-contact breathing detection device
A respiration detection device and a non-contact technology, which is applied in the evaluation of respiratory organs and other directions, can solve the problems that microwave signals are easily interfered by other electrical signals, easily interfered by noise, and affect the accuracy, so as to achieve low cost and improve accuracy. Sex, the effect of avoiding discomfort
Active Publication Date: 2018-03-06
NANCHANG HANGKONG UNIVERSITY
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The disadvantage of method 1 is that in the process of sending, receiving and processing microwave signals, microwave signals are easily interfered by other electrical signals, thus affecting the accuracy of detection
The disadvantage of method 2 is that the pattern irradiated on the human body changes little with breathing movement, is not easy to be detected, and is easily disturbed by noise
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[0053] In order to make the technical solutions, beneficial effects and technical problems to be solved of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. In this embodiment, the operator detects the breathing of the patient.
[0054] Such as image 3 As shown, an ordinary laser emitter is selected as the light emitting module 1, which emits a laser that does no harm to the human body. Choose a whiteboard as the light receiving module 2 , choose an ordinary digital camera as the image acquisition module 3 , and choose a computer as the data processor 4 .
[0055] First install it in the following way: connect the digital camera to the computer through the USB data cable. The patient is lying on the treatment bed 9, and the ordinary laser emitter is fixed at a certain position in front of the patient by a bracket, so that the light emitted by the ordinary laser emitte...
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The invention discloses a non-contact respiration detection device, which comprises a light emitting module, a light receiving module, an image acquisition module and a data processor, and can be used for detecting the respiration of a human body. When in use, the light is emitted by the light emitting module and irradiated on the chest or abdomen of the human body. After the light is reflected, it is irradiated on the light receiving module. The direction of the reflected light will change with the movement of the chest or abdomen caused by breathing. The position of the light spot on the light receiving module will also change accordingly. By collecting, processing and analyzing the image of the light spot, and automatically extracting the position change information of the light spot, the breathing signal of the human body can be obtained. The device can amplify the small movements of the chest or abdomen that represent human breathing, thereby improving the accuracy of respiratory signal detection. At the same time, the non-contact breathing detection method can also avoid contact breathing detection. causing discomfort.
Description
technical field [0001] The invention belongs to the field of physiological signal detection, and in particular relates to a non-contact breathing detection device. Background technique [0002] Respiration is an important physiological feature that reflects the state of human health. At present, there are many methods and devices for detecting breathing, which can be divided into two types: contact breathing detection and non-contact breathing detection according to whether they are in contact with the human body during detection. [0003] Contact breathing detection uses sensors to directly contact the human body to detect changes in certain physical parameters caused by human breathing, such as changes in the temperature and airflow in the nasal cavity, deformation of the chest cavity and abdomen, and impedance of the chest cavity. Contact breathing detection currently includes piezoelectric detection, piezoresistive detection, thermistor method, gas flow detection, imped...
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IPC IPC(8): A61B5/08
Inventor 杨词慧胡正伟刘创业
Owner NANCHANG HANGKONG UNIVERSITY