CN111150405A

CN111150405A - Intelligent medical observation wristwatch with cough monitoring function

Info

Publication number: CN111150405A
Application number: CN202010084774.2A
Authority: CN
Inventors: 缪梓萍; 孙文胜; 凌锋; 孙继民; 陈恩富; 刘社兰
Original assignee: Hangzhou Dianzi University; Zhejiang Center for Disease Control and Prevention
Current assignee: Hangzhou Dianzi University; Zhejiang Center for Disease Control and Prevention
Priority date: 2020-02-10
Filing date: 2020-02-10
Publication date: 2020-05-15

Abstract

The invention relates to an intelligent medical observation wristwatch with a cough monitoring function. The invention comprises a sound detection module, a passive vibration sensing module and an NB _ IoT module. The intelligent wristwatch is worn on a monitored person, the passive vibration sensing module does not work under the condition of static or slight shaking, and the wristwatch is in a normal timing awakening state to detect each index state but does not include cough monitoring; when the monitored person coughs or violently moves, the passive vibration sensing module works to awaken the MCU in the intelligent wristwatch, and the MCU collects sound through the sound detection module. The invention mainly aims at cough of a monitored person, integrates the real-time online detection function into a common wristwatch, and replaces the NB _ IoT communication module, so that the wristwatch online monitoring system has stronger function and is more humanized.

Description

Intelligent medical observation wristwatch with cough monitoring function

Technical Field

The invention relates to the field of intelligent health monitoring, in particular to an intelligent medical observation wristwatch with a cough monitoring function.

Background

At present, various wristwatches have been made in the industry, powerful platforms are designed to realize the monitoring of the trace positioning, emergency calling and common body indexes such as blood pressure, pulse, body temperature, sleeping state and the like of people, and the monitoring is reported to a server in real time, so that medical staff or family guardians can check the state of a person under guardianship at any time, but the real-time monitoring of cough is needed but the monitoring is realized by wearing equipment with larger volume, and the walking and the living of the person under guardianship are inconvenient.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the intelligent medical observation wristwatch with the cough monitoring function.

The technical scheme adopted by the invention for solving the technical problem is as follows:

the invention comprises a sound detection module, a passive vibration sensing module and an NB _ IoT module.

The intelligent wristwatch is worn on a monitored person, the passive vibration sensing module does not work under the condition of static or slight shaking, and the wristwatch is in a normal timing awakening state to detect each index state but does not include cough monitoring; when the monitored person coughs or violently moves, the passive vibration sensing module works to awaken the MCU in the intelligent wristwatch, and the MCU collects sound through the sound detection module.

The MCU performs feature extraction analysis on the collected sound, judges whether the collected sound meets the features of cough, immediately reports the sound to a remote server through the NB _ IoT module if the collected sound meets the features of cough, and then enters a low power consumption state; if not, the low power consumption state is also rapidly entered; the server is provided with a cough alarm function.

Furthermore, the sound detection module is a microphone, and the microphone used for calling are the same microphone.

Furthermore, a switch is arranged on the intelligent wristwatch and used for switching off the cough monitoring function.

Furthermore, the sound sensing detection module is kept in a low power consumption state, and the sound sensing detection module is started to collect sound only when the MCU is awakened by the passive vibration sensing module.

Furthermore, the MCU performs priority processing on the function of monitoring the cough.

Furthermore, the server is configured as a cloud server, medical staff or guardians can know the condition of the monitored staff through a PC, a large screen or a mobile phone in real time, the threshold of each index can be set, and when the monitored index exceeds a threshold value, the monitored staff actively alarms in an acousto-optic electric manner.

Furthermore, the passive vibration sensing module generates an instantaneous short circuit when working, and a delay time is added when the MCU is awakened by the passive vibration sensing module for judging the short circuit of the passive vibration sensing module again.

The invention has the beneficial effects that:

1. the problem of in the past with bulky wearing monitor by guardianship person's cough is solved, will use the passive vibration sensor that the volume is less to integrate on the watch, feel violent vibration and the characteristics of instantaneous short circuit through it and awaken MCU and carry out cough sound detection, greatly reduced the power consumption of watch, prolonged watch stand-by time.

2. The NB _ IoT network is stable and reliable using the NB _ IoT module instead of the past 2G module.

3. The sound detection function is added, the sound feature extraction and the sound feature of the cough are mature, the calculation workload of the MCU is slightly increased, and the performance of the MCU is not influenced.

4. The guardian can immediately know the information of the person under guardianship through the server platform or the mobile phone APP, set an alarm threshold, and actively carry out acousto-optic and electric alarm to prompt the guardian to intervene management when the monitored index exceeds the threshold.

5. The existing monitoring mode suitable for isolating medical management of patients with class A infectious diseases (such as 2019-nCoV) and close contacts thereof is innovated and perfected, the exposure chance of medical staff is reduced, and the method is more economical, efficient and safe.

Drawings

Fig. 1 is a schematic diagram of an intelligent medical observation wristwatch with a cough monitoring function and peripheral network communication thereof.

Detailed Description

In order to facilitate the understanding and practice of the present invention for those of ordinary skill in the art, the present invention will be described in further detail with reference to the accompanying drawings, wherein the description of the embodiments is provided for the purpose of illustration and explanation, and is not intended to limit the present invention.

The invention integrates various sensors on the wristwatch, particularly introduces a passive vibration module, and forms a complete and 24-hour continuous symptom monitoring system for a person wearing the wristwatch through the NB _ IoT network and the server platform.

As shown in fig. 1, the present invention changes the existing intelligent wristwatch communication module into NB _ IoT module, and adds a sound detection module and a passive vibration sensing module (with small volume); the cough display alarm function is added on the server platform.

In the static or slight shaking condition, the passive vibration sensor does not work (namely, the passive vibration sensor cannot be short-circuited instantly), and the wristwatch is in a normal timing wake-up state to detect various index states, including blood pressure, pulse, body temperature, sleep condition and the track of the monitored person, but not including cough monitoring.

When the monitored person coughs or violently moves, the passive vibration sensor works (instantaneous short circuit), the MCU is awakened, and the MCU collects sound through the sound detection module; then the MCU performs feature extraction and analysis on the sound, judges whether the sound meets the features of the cough, immediately reports the sound to a server through an NB _ IoT network if the sound meets the features of the cough, and then enters a low power consumption state; if not, then the low power state is also entered quickly.

In this embodiment, a switch (which may be set by a software menu) is provided on the wristwatch to perform cough monitoring selection, and the function may be temporarily turned off to avoid frequent waking up of the MCU when the monitored person is running or otherwise exercising.

In order to avoid battery consumption in the embodiment, the sound sensor keeps a low power consumption state when the MCU is awakened without vibration; when the MCU is awakened by vibration, the sound sensor is instantly started to collect sound. When a microphone for calling is used, the low power consumption design is referred to.

In order to avoid conflict in the embodiment, when the MCU is awakened normally at regular time to perform other detection, the instantaneous short circuit detection of the passive vibration sensor is also started; if the vibration is detected, the processing is immediately performed, and the other function detection is suspended, and after the cough processing is finished, the other function detection is performed.

In this embodiment, the indexes such as NB _ IoT power consumption have obvious advantages compared with the 2G network, and the wristwatch can be connected with the remote server through the NB _ IoT network.

In this embodiment, a medical care worker or a guardian can instantly know the condition of a person under guardianship through a PC, a large screen and a mobile phone, can set the threshold of each index, and actively alarms in an acousto-optic manner when the monitored index exceeds the threshold.

In summary, the invention mainly aims at cough of the monitored person, integrates the real-time online detection function into a common wristwatch, and replaces the NB _ IoT communication module, so that the wristwatch online monitoring system has stronger function and is more humanized. The passive vibration sensor used in the invention can be instantly short-circuited to trigger and wake up the MCU for sound collection and identification when the sensor vibrates violently, other common functions are not affected, the sound sensor used in the invention can be a common microphone, the original microphone used for calling on the wristwatch can be shared without adding additional hardware, the original low-power consumption servo function of the calling microphone is the same as the low-power consumption principle of the cough detection function, and no contradiction exists. The invention adds the cough detection function of the person under guardianship, so that a corresponding functional module is also added on the server platform. In order to prevent false detection, the MCU software can be added with a passive vibration sensor to confirm and judge the instantaneous short circuit, namely, the short circuit times are more than once in a short time when coughing or violent activities occur, so as to confirm whether false detection is feasible.

It should be understood that the above description of the preferred embodiments is given for clearness of understanding and no unnecessary limitations are to be understood therefrom, and all changes and modifications that come within the spirit of the invention may be made by those skilled in the art without departing from the scope of the invention as defined by the appended claims.

Claims

1. an intelligent medical observation wristwatch with monitoring cough function, is characterized in that, comprises sound detection module, passive vibration sensing module and NB_IoT module;

The smart watch is worn on the person to be monitored. In the case of stillness or slight shaking, the passive vibration sensing module does not work, and the watch is in a normal state of regular wake-up detection of various indicators, excluding cough monitoring. ; When the monitored person coughs or exercises vigorously, the passive vibration sensing module works to wake up the MCU in the smart watch, and the MCU collects the sound through the sound detection module;

The MCU performs feature extraction and analysis on the collected sound to determine whether it conforms to the characteristics of cough. If it is, it is immediately reported to the remote server through the NB_IoT module, and then the MCU enters a low-power state; if not, it also quickly enters a low-power state. Power consumption state; the server is provided with a cough alarm function.

2 . The smart medical observation wristwatch with a cough monitoring function according to claim 1 , wherein the sound detection module is a microphone, and the microphone and the microphone used for calling are the same microphone. 3 .

3 . The smart medical observation watch with a cough monitoring function according to claim 1 , wherein a switch is provided on the smart watch for turning off the cough monitoring function. 4 .

4. The smart medical observation wristwatch with a cough monitoring function according to claim 1, wherein the sound sensing detection module is kept in a power-off state, and only when the MCU is awakened by the passive vibration sensing module When the sound sensor detection module is turned on, the sound is collected.

5 . The smart medical observation wristwatch with a cough monitoring function according to claim 1 , wherein the MCU prioritizes the monitoring cough function. 6 .

6. The intelligent medical observation wristwatch with a cough monitoring function according to claim 1, wherein the server is configured as a cloud server, and medical staff or guardians can use a PC, a large screen or a mobile phone to instantly To understand the situation of the monitored personnel, you can set the threshold of each index. When the monitored index exceeds the threshold, it will give an active sound and light alarm.

7 . The smart medical observation wristwatch with a cough monitoring function according to claim 1 , wherein an instantaneous short circuit occurs when the passive vibration sensing module works, and the MCU is woken up by the passive vibration sensing module. 8 . A delay time is used to judge the short circuit of the passive vibration sensor module again.