A detection and alarm system for sudden respiratory arrest

Abstract

The present disclosure provides a sudden respiratory arrest detection and alarm system, including a processor and at least one radar sensor arranged in the monitoring area and connected to the processor in communication, the radar sensor is used to emit electromagnetic waves and receive echo signals, the processing The detector is used to detect respiratory arrest based on the collected transmitted electromagnetic wave and echo information, using the minimum value of the echo amplitude under the condition of no one lying in bed, the level of echo interference under the condition of no one lying in bed, and the power calculated under the four lying positions The minimum value of the spectral density sum determines the pre-alarm condition for respiratory arrest. When the echo signal received in real time meets the pre-alarm condition, the pre-alarm for respiratory arrest is performed; this disclosure is applicable to non-contact and non-visual detection methods, no need to wear , does not affect normal activities, does not violate personal privacy, greatly improves the practicability of detection, and has a very high promotion value.

Description

technical field [0001] The present disclosure relates to the technical field of radio radar, and in particular, to a respiratory arrest detection and alarm system. Background technique [0002] The statements in this section merely provide background related to the present disclosure and do not necessarily constitute prior art. [0003] Sleep apnea is a very dangerous, sudden and imperceptible abnormal condition that can have serious consequences if not intervened in time. In the research of smart medical care equipment and devices, the detection of respiratory arrest will also attract attention. [0004] The inventors of the present disclosure have found that most of the existing respiratory monitoring devices adopt a contact method, which is embodied in two forms: an electrocardiogram monitor and a wristband. Although the ECG monitor has high accuracy, it uses a contact stick sensor, which has poor comfort and affects normal activities, and is expensive to manufacture. ...

AI Technical Summary

Problems solved by technology

Although the ECG monitor has high accuracy, it uses a contact paste sensor, which is poor in comfort and affects normal activities, and is expensive, so it is not suitable for long-term use in nursing homes or at home; the wristband has the function of monitoring heart rate and blood pressure, and some can also be positioned It can even call the phone when it falls down, but it has poor battery life and is prone to false alarms

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