Blood pressure detection method, system and equipment based on millimeter wave radar
A millimeter wave radar and detection method technology, applied in non-contact blood pressure detection, blood pressure detection field based on millimeter wave radar, can solve the problems of poor comfort, limiting the application range of blood pressure detection, affecting measurement accuracy, etc.
Pending Publication Date: 2022-04-12
UNIV OF SCI & TECH BEIJING
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Problems solved by technology
The first contact detection requires the sensor to be in contact with the human body, and some even need to apply a certain pressure to the blood vessel wall. Long-term measurement will lead to venous congestion at the measured part, poor comfort and affect measurement accuracy.
Second, this detection method has higher requirements on the position of the sensor and the detection accuracy.
The third contact detection cannot be used for some special populations, such as patients with extensive burns, patients with infectious diseases, patients with skin diseases, newborn babies, etc., which limits the scope of application of blood pressure detection
The third method may require multiple sensors to measure different physiological signals at the same time, which will increase the burden and bring a lot of inconvenience
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[0114] In yet another implementation mode, this solution can be realized by means of equipment, which can implement the blood pressure detection method based on millimeter-wave radar as described in the above-mentioned embodiments, or carry the blood pressure detection method based on millimeter-wave radar as described in the above-mentioned embodiments. Radar blood pressure detection system. Therefore, each step or several steps of the above-mentioned various embodiments may be performed by corresponding modules, and the electronic device may include one or more of these modules. A module may be one or more hardware modules specifically configured to perform the corresponding steps, or be implemented by a processor configured to perform the corresponding steps, or be stored in a computer-readable medium for implementation by the processor, or be implemented by a some combination to achieve.
[0115] The device can be implemented using a bus architecture. The bus architectur...
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The invention provides a blood pressure detection method, system and device based on millimeter wave radar, and the method comprises the steps: obtaining the distance and phase information of an object based on a millimeter wave radar signal, determining a distance box corresponding to a human body reflection signal based on the variance of the distance and phase information, and obtaining a human body reflection phase signal; enhancing the phase signal reflected by the human body, and removing noise to obtain an enhanced phase signal; based on the frequency range where the pulse waves are located, the pulse wave phase signals are separated from the enhanced phase signals through wavelet packet decomposition, and reconstructed pulse wave signals are obtained; preprocessing the reconstructed pulse wave signal, extracting characteristic parameters of the reconstructed pulse wave signal, and obtaining a blood pressure detection result based on the characteristic parameters. According to the scheme, non-contact detection of the blood pressure is achieved, and the method has very important significance on detection application under special crowds and scenes.
Description
technical field [0001] The present invention relates to the technical field of radar signal processing and biometric signal detection, in particular to a blood pressure detection method, system and equipment based on millimeter-wave radar to realize non-contact blood pressure detection. Background technique [0002] Hypertension is the most important risk factor for cardiovascular and cerebrovascular diseases due to its high incidence and high recurrence rate, accompanied by functional or organic damage to life-threatening heart, brain, kidney and other organs. Hypertension has no obvious symptoms in the early stage of the disease. Most patients do not know that they are suffering from the disease and have not received timely treatment. The control rate is very low. Therefore, timely and effective detection of a person's blood pressure is an urgent need for the prevention, early detection and control of hypertension. [0003] Current blood pressure measurement methods mainl...
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Login to View More IPC IPC(8): A61B5/021A61B5/05
CPCY02A90/10
Inventor 肖文栋刘璐瑶绳浩兵屈莹崔昊吕红霞陈浩
Owner UNIV OF SCI & TECH BEIJING