CN104606003A - Intelligent nursing bed based on face recognition and working method of intelligent nursing bed - Google Patents

Abstract

The invention discloses an intelligent nursing bed based on face recognition and a working method thereof. The intelligent nursing bed includes: at least three image acquisition modules, which are respectively located above and on both sides of the intelligent nursing bed, and are used to acquire face images The storage module pre-stores the face image feature value sample when the user sleeps; the processor module connected to the image acquisition module and the storage module, the processor module is suitable for extracting the feature value and the face image of the collected face image Relative comparison of eigenvalue samples to judge the sleep status of the user; the present invention effectively avoids unexpected situations encountered by patients and the elderly during sleep by identifying and comparing the user's face while sleeping technical problems.

Description

Intelligent nursing bed based on face recognition and its working method

technical field

The invention relates to the application field of medical equipment, in particular to an intelligent nursing bed based on face recognition and a working method thereof.

Background technique

At present, various nursing beds can be seen in medical institutions at all levels. But these nursing beds are all aimed at some patients who need special care, are expensive, and the operation is complicated, and it is not easy to use without the guidance of a professional, so their use penetration rate in families is not high. On the other hand, among numerous nursing beds, there are few nursing beds that focus on prevention and have an automatic alarm function for family members. This invention addresses these pressing problems. The invention innovatively takes the facial expression features of people during sleep as reference data for sleep quality, analyzes and processes the images collected by the camera through a single-chip microcomputer to adjust the oxygen content and air temperature in the indoor air to achieve the effect of nursing, and In critical moments, the GSM communication module automatically sends a distress signal to family members. As the core technology of this nursing bed, face recognition has been widely used. Face recognition organically integrates computer, image processing and pattern recognition, and has attracted more and more attention.

In real life, it is often heard that many elderly people die suddenly in their sleep, making it too late for family members and doctors to rescue them. According to the survey of authoritative medical institutions, most of these elderly people have cardiovascular diseases, such as coronary heart disease, high blood pressure, arteriosclerosis and other diseases. Sudden death in sleep is mainly caused by severe arrhythmia such as cardiac arrest. Facial expression is obviously abnormal. For this type of problem, this invention goes to avoid such danger as far as possible.

Contents of the invention

The purpose of the present invention is to provide an intelligent nursing bed and its working method, which can effectively prevent patients and the elderly from encountering unexpected situations during sleep by identifying and comparing the user's face during sleep, and cannot Technical issues found.

In order to solve the above-mentioned technical problems, the present invention provides an intelligent nursing bed, comprising: at least three image acquisition modules, respectively located above and on both sides of the intelligent nursing bed, and used to collect face images; Face image feature value sample during sleep; and the processor module that is connected with image acquisition module, storage module, described processor module is suitable for extracting the feature value of collected face image and the relative contrast of face image feature value sample , to judge the user's sleep status.

Preferably, the processor module is also connected to the sound collection module, and samples of characteristic value of breathing sound are also stored in the storage module; the processor module is also suitable for extracting the characteristic value of the collected breathing sound, and The value is compared with the breathing sound feature value sample to judge the user's sleep status; adding breathing sound judgment on the basis of the face image improves the accuracy of judgment.

Optionally, the processor module is also connected to the air-conditioning air output control circuit and/or the oxygen output control circuit; The temperature and/or oxygen output control circuit adjusts the oxygen output, so that the user's condition is alleviated, and valuable time is gained for timely treatment.

Optionally, the processor module is also connected to the GSM communication module; the processor module is also suitable for sending an alarm message through the GSM communication module to a designated mobile phone when it is judged that the user’s sleep is abnormal, so as to remind the guardian .

In yet another aspect, the present invention also provides a working method of an intelligent nursing bed, by extracting the feature value of the collected face image and comparing it with the pre-stored sample of the feature value of the face image when the user is sleeping, to judge whether the user is sleeping or not. situation.

Further, the feature values of the face image include: face color, mouth shape, and mouth shape.

Preferably, by extracting the feature value of the collected breathing sound and comparing it with the pre-stored sample of the breathing sound feature value when the user sleeps, to judge the user's sleep condition; adding breathing sound judgment on the basis of the face image, improving the accuracy of judgment.

Optionally, the intelligent nursing bed also includes an air-conditioning air output control circuit and/or an oxygen output control circuit controlled by the processor module; The air-conditioning air output control circuit adjusts the indoor temperature and/or the oxygen output control circuit adjusts the oxygen output; so that the user's condition is alleviated and valuable time is gained for timely treatment.

Optionally, the processor module is also connected to the GSM communication module; the processor module is also suitable for sending an alarm message through the GSM communication module to a designated mobile phone when it is judged that the user’s sleep is abnormal, so as to remind the guardian .

The beneficial effect of the present invention is that the intelligent nursing bed and its working method of the present invention can judge the sleep condition of the user by extracting the eigenvalues of the collected face images and comparing them with the eigenvalue samples of the face images, and then take corresponding measures. Measures, such as adjusting the indoor temperature and oxygen supply, to alleviate the unexpected situation of the user during sleep, and remind the guardian by means of text messages, so that patients and the elderly encounter unexpected situations during sleep, which can be discovered in time and alleviated. symptom.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a functional block diagram of the intelligent nursing bed of the present invention.

detailed description

The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

Example 1

Fig. 1 is a functional block diagram of the intelligent nursing bed of the present invention.

As shown in Figure 1, the intelligent nursing bed of the present invention includes: at least three image acquisition modules, which are respectively located on the top and both sides of the intelligent nursing bed, and are used to collect face images; Face image feature value sample; a processor module connected to the image acquisition module and the storage module, the processor module is suitable for extracting the feature value of the collected face image and comparing it with the face image feature value sample to determine the use sleep status.

Wherein, the image acquisition module is specifically a camera, an optional CCD infrared camera or a CMOS infrared camera. The processor module adopts a single-chip microcomputer MSP430F5438, which has the characteristics of low consumption, high performance, and serial port communication with the outside world.

Further, the processor module is also connected to the sound collection module, and samples of characteristic value of breathing sound are also stored in the storage module; the processor module is also suitable for extracting the characteristic value of the collected breathing sound, and storing the characteristic value It is compared with samples of breathing sound feature values to judge the sleep status of the user.

Further, the processor module is also connected to the air-conditioning air output control circuit and/or the oxygen output control circuit; the processor module is also adapted to adjust the indoor temperature and /or the oxygen output control circuit adjusts the oxygen output.

Specifically, the air-conditioning air volume control circuit includes: an air-conditioning SMS remote controller, such as a RACC-IP Ethernet air-conditioning remote controller, which is connected to the air-conditioning, and uses a network remote control interface to receive instructions to achieve indoor temperature regulation. The oxygen output control circuit includes: a pressurization valve and a flow meter, the oxygen outlet hole can be located on the head of the user, the oxygen in the oxygen tank is discharged from the oxygen outlet hole through the flow meter and the pressurization valve, and the flow meter is connected to the processor module to calculate the amount of oxygen; the pressurization valve is controlled by the processor module through the drive circuit to control the oxygen output of oxygen.

Further, the processor module is also connected to the GSM communication module; the processor module is also adapted to send an alarm message to the designated mobile phone through the GSM communication module when it is judged that the user's sleep is abnormal. Specifically, the GSM communication module adopts ZTE's MZ28 wireless communication module.

Example 2

As shown in Fig. 1, the present invention also provides a working method of the intelligent nursing bed.

The working method of the intelligent nursing bed of the present invention compares the feature value of the collected face image with the pre-stored sample of the feature value of the face image when the user is sleeping, so as to judge the sleeping state of the user.

Further, the feature value of the human face image is specifically human facial expression, which includes but not limited to: facial color, mouth shape, and mouth shape.

Further, the working method of the intelligent nursing bed also includes: a method for obtaining feature value samples of face images, and the specific implementation steps include: inputting the face image information of the user, collecting the face images of the user in normal sleep and at different times The eigenvalues of each moment are fused to obtain the eigenvalue samples of the face image.

In a preferred implementation based on this embodiment, the sleep status of the user is judged by extracting the feature value of the collected breathing sound and comparing it with the pre-stored sample of the feature value of the breathing sound of the user during sleep.

Specifically, the establishment method of the breath sound feature value sample is similar to the acquisition method of the face image feature value sample; specifically, if snoring, when the record is normal, the snoring sound frequency is used as sample data. If the collected snoring frequency is high, shortness of breath is judged.

As a first optional implementation of this embodiment, the smart nursing bed further includes an air-conditioning air output control circuit and/or an oxygen output control circuit controlled by the processor module; the processor module is also suitable for According to the sleep status, the indoor temperature is adjusted by the air-conditioning air output control circuit and/or the oxygen output control circuit is used to adjust the oxygen output.

As another optional implementation of this embodiment, the processor module is also connected to the GSM communication module; the processor module is also suitable for specifying the mobile phone through the GSM communication module when it is judged that the user's sleep is abnormal. Send an alarm message.

Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, but must be determined according to the scope of the claims.

Claims (9)

1. An intelligent nursing bed, characterized in that, comprising: At least three image acquisition modules are respectively located above and on both sides of the intelligent nursing bed, and are used to acquire face images; The storage module pre-stores the face image feature value samples when the user sleeps; A processor module connected with the image acquisition module and the storage module, the processor module is suitable for extracting the feature value of the collected face image and comparing it with the feature value sample of the face image to judge the sleep condition of the user. 2. The intelligent nursing bed according to claim 1, characterized in that, The processor module is also connected with the sound collection module, Also stored in the storage module are breath sound feature value samples; The processor module is further adapted to extract the characteristic value of the collected breathing sound, and compare the characteristic value with the sample of the characteristic value of the breathing sound, so as to judge the sleeping state of the user. 3. The intelligent nursing bed according to claim 1 or 2, characterized in that, The processor module is also connected to the air-conditioning air output control circuit and/or the oxygen output control circuit; The processor module is further adapted to adjust the indoor temperature and/or the oxygen output control circuit to adjust the oxygen output through the air-conditioning air output control circuit according to the sleep status. 4. intelligent nursing bed according to claim 3, is characterized in that, described processor module is also connected with GSM communication module; The processor module is also suitable for sending an alarm message to a designated mobile phone through the GSM communication module when it is judged that the user's sleep is abnormal. 5. A working method of an intelligent nursing bed, characterized in that, The feature value of the collected face image is extracted and compared with the pre-stored sample of feature value of the face image when the user is sleeping, so as to judge the sleep state of the user. 6. The working method of the intelligent nursing bed according to claim 5, characterized in that, the feature values of the face image include: face color, mouth shape, mouth shape. 7. the working method of intelligent nursing bed according to claim 5, is characterized in that, The sleep condition of the user is judged by extracting the feature value of the collected breathing sound and comparing it with the pre-stored sample of the feature value of the breathing sound when the user is sleeping. 8. The working method of the intelligent nursing bed according to claim 7, characterized in that, the intelligent nursing bed also includes an air-conditioning air output control circuit and/or an oxygen output control circuit controlled by the processor module; The processor module is further adapted to adjust the indoor temperature and/or the oxygen output control circuit to adjust the oxygen output through the air-conditioning air output control circuit according to the sleep status. 9. the working method of intelligent nursing bed according to claim 8, is characterized in that, described processor module is also connected with GSM communication module; The processor module is also suitable for sending an alarm message to a designated mobile phone through the GSM communication module when it is judged that the user's sleep is abnormal.